Monday, September 30, 2019

China Petroleum and Chemical Corporation Essay

The net profit figure of RMB 19,011 reported under PRC GAAP was increased to RMB 21,593 under IFRS. The increase of RMB 2,582 under IFRS was due to the following reasons: Dep. and disposal of oil and gas properties RMB3,044 Acquisition of subsidiaries 443 Capitalization of general borrowing costs 389 Gain from issuance of shares by subsidiary 136 Gain from debt restructuring 82 Revaluation of land use rights 18 4,112 Unrecognized losses of subsidiaries (182) Pre-operating expenditures (169) Effect on taxation (1,179)(1,530) 2,582 The net profit figure of RMB 21,593 reported under IFRS was increased to RMB 25,577 under U.S. GAAP. The increase of RMB 3,984 under U.S. GAAP was due to the following reasons: Dep. of revalued PPE RMB 3,998 Disposal of PPE 1,316 Capitalized interest on invest.in associates 141 Reversal of deficits on revaluation of PPE 86 Foreign exchange gains and losses76 Reversal of impairment of long-lived assets 47 Exchange of assets23 Capitalization of PPE12 5,699 Deferred tax effect of U.S. GAAP adjustments (1,715) 3,984 2.The differences for CPCC between PRC GAAP and IFRS, and between IFRS and U.S. GAAP are given in the case. As mentioned in the case, treatments of the following items under PRC GAAP and IFRS are different: Depreciation and disposal of oil and gas properties Capitalization of general borrowing costs Acquisition of subsidiaries Gains from issuance of shares by a subsidiary Gains from debt restructuring Revaluation of land use rights Unrecognized losses of subsidiaries Pre-operating expenditures Impairment loses on long-lived assets Government grants (Refer pp.5-72 – 5-75 in the textbook) Treatments of depreciation and disposal of oil and gas properties seem to have a significant impact on reported profit. As mentioned in the case, treatments of the following items under IFRS and U.S. GAAP are different: Foreign exchange gains and losses Capitalization and revaluation of property, plant and equipment Exchange of assets Impairment of long-lived assets Capitalization of interest on investment in associates Goodwill amortization Companies included in consolidation Related party transactions (Refer pp.5-77 – 5-82) Treatments of depreciation of revalued property, plant and equipment, and disposal of property, plant and equipmentseem to have a significant impact on reported profit 3.U.K. readers of the financial statements may not find them very useful, as the information is not reconciled to the U.K. GAAP. There are differences between U.K. GAAP and IFRS, and between U.K. GAAP and U.S. GAAP. With the adoption of IFRS in the EU, this may not be a major problem anymore. However, UK companies use IFRS as adopted by the EU which in some cases differs from the IFRS issued by the IASB. 4.U.S. readers should find the information useful. However, it would be better for them if the information was reconciled directly from PRC GAAP to U.S. GAAP. 5.When a company is listed on a foreign stock exchange, it is always useful to explain the differences, if any, between accounting standards used in  preparing financial statements, and those that are stipulated by the listing requirements. The need for such explanation is reduced if the two sets of standards are comparable. However, differences can still exist due to different interpretations of the requirements. Therefore, the approach taken by CPCC can be recommended to other companies.

Sunday, September 29, 2019

Metin

ZEE: She’s a 19 year-old girl, suffering from anxiety and panic attacks. She is a quick-tempered, disorganized, untidy but clean girl. Although she tries to make others believe that she is a   liberal, in fact she is traditional. She has a strong sense of personal ethics. She can’t keep abreast of all innovations immediately. She suffers from insomnia at nights so she watches films when she can’t sleep. She’s addicted to cigarettes, but doesn’t drink alcohol. She’s passionately fond of her father and she has a tattoo showing her father’s date of birth on her leg. But she doesn’t show this to her father. She doesn’t answer telephone calls. Most of the time she rings it off before the other person speaks. HALUK: He is Zee’s 78 year-old father. He lives in Turkey. He is a childish man. He still watches the cartoon Tom & Jerry every morning. He’s trying to keep up with technology in order to prove that he isn’t old. He’s not a narrow minded man; on the contrary, he’s innovative in the same way as young people and thinks in the same way with them. The fact that he   ZEE was born to him in his old age makes him care for her very much. Though he knows that his daughter loves him, he also wants affection from her. He calls her daughter at least ten times a day. HILARY ZANETICH: She is the closest friend of ZEE. She was born in New Jersey. She is blond, tall and plump. She doesn’t mind her physical appearance, except at nights when she goes out. She wears the same clothes at school everyday. She’s quite a flexible and a positive person. Although she believes that ZEE is a hypochondriac and crazy, she loves her very much. All the time she says that their friendship has improved her character in many ways. Her flexibility makes HILARY extremely funny. The fact that she never minds anything sometimes gets her into trouble. The first person that ZEE asks about America is HILARY. However, as Hilary’s general knowledge is not sufficient, she calls her mother each time after Hilary’s answers. YAMAN GAZIOGLU: He is the closest Turkish boy friend of ZEE. He is very keen on girls, especially American blond girls. His most noticeable feature is that while he is speaking English, he applies direct translations from Turkish. For that reason, he usually talks about what ZEE can understand. (He translates Turkish idioms into English, but they make sense to no one except for ZEE.) Turkey is against America. As images of Turkey come from the international map, ZEE explains about Turkish people and the general features of Turkey   that have been left behind. When the camera-shot moves away from Turkey and starts to approach America, we see luxury shops, automobiles, and elite people shopping and having dinner in Merrick Park, where Zee lives. Following these images, the camera is slowly directed to Zee’s bedroom. Meanwhile, we grasp from Zee’s words that she wants to be far away from her American life style even for only one day. Starting the day. The first place we meet Zee is her bedroom. Cigarette ends at the bedside of Zee, burying her head in her pillow, a great many dresses on the floor and DVDs draw our attention. A film is already on the TV with low volume. There are pictures of her father and his letters to her on the walls. Her father’s call wakes Zee up. Her father, whose computer has already been locked, calls Zee to ask for her help. However, he doesn’t listen to what ZEE says and does what he wants. Zee, fed up with her father’s advice and warnings, hangs the phone up. Meanwhile she is called again by Blockbuster so that she will return the DVDs she rented from them. As she can’t go on sleeping, she calls the hairdresser to have her hair done. But she can’t have an appointment since a customer has sued   the hairdresser. Extremely disappointed Zee deals with her hair by herself, gets dressed and goes out. Traffic monster. While she is driving slowly towards school   listening to music at the highest volume, she almost runs into an car trying to overtake a slower vehicle. She has to swerve to the right and runs into the garden of a house. She immediately looks at the number plate of the automobile and,   shaking   all over,   calls the police.   But the police cannot help Zee as neither she nor her car is injured. They say to her, that’s life. 4) Accusation Zee goes to her French lesson with a Turkish friend and her teacher makes them get out of the class. The teacher tells Zee that she will punish her and expel her from school as Zee helped a friend with his homework. Zee explains to her teacher that she’s still trying to get used to American school system, adding that in Turkey helping one’s friends with their homework is not considered such a bad thing. After that, the teacher excuses Zee by pointing out that she mustn’t do it again. 5) For those buying one, the second is free of charge. Zee goes shopping with her American friend Hilary in their one and a half hour break. The salesman tries to persuade her by saying that if she buys two more underclothes from Victoria Secret shopping center, a freezer will be given to her free of charge. The attitude of the salesman makes Zee angry. 6) Post- it When Zee comes back to school, she can’t find a parking place in the enclosed car-park of the school, so she has no chance out of parking on the meters. But she has no coins at that moment and she knows that her automobile will be towed away if she parks there as she hasn’t paid the fines she already has. She first hesitates but decides to park her car there as soon as she realizes that she’ll be late for her class. She gets out of   her car and   writes the following note on a post-it, putting it on the parking meter; â€Å"I’m sorry, but I have no coins. PLEASE DO NOT PULL MY AUTO AWAY, I WILL BE BACK WITHIN TWO HOURS.†Ã‚   She then sticks it on the windshield.   

Saturday, September 28, 2019

PORSCHE Case Study Example | Topics and Well Written Essays - 1500 words

PORSCHE - Case Study Example It also owns other companies such as Audi, Bentley, and Lamborghini making it the third world’s largest automobile manufacturer in the world. Volkswagen plans to gain the top position using a platform called Strategy 2018. To achieve this, VW plans to increase the limited production of Porsche through the development of new product lines such as sedans and SUVs aside from sports cars. It also wants to absorb the technology and innovation of Porsche and apply them to other automobile brands owned by VW. However, these plans represent a potential risk for the brand image of Porsche since these can negatively affect the perception of quality and loyalty among Porsche customers. Thus, Matthias Mueller, the new CEO of Porsche, needs to make a significant strategic decision. Muller has to decide effectively whether Porsche should diversify its production or focus on delivering its core competency which is the production of sports cars. In addition, Muller also needs to create a stra tegy that will prevent the potential brand dilution of Porsche. II. Situation Analysis General Environment The economic environment where the automobile industry operates is highly unstable and volatile. This is a result of the financial crisis and economic recession emerging in different countries. This situation can greatly affect the purchasing decision of customers. Industry Environment Sports cars are a specialised segment in the automobile industry with a very specific target market which are the affluent race car enthusiasts. Even though there is a small market for this segment, each purchase constitutes very high profit margin. For this reason, a lot of automobile companies are also designing and manufacturing sports cars. This led to the increased competition for this segment in the industry. Porsche is the leading brand for sports cars in the world. On the other hand, Sedan and SUVs are also generating increased demand from the global market. This represents an opportunity that differentiated car manufacturers can take advantage. However, this segment already has numerous competitors. In general, there is increased competition in the automobile industry since buyers incur low switching cost as a result of high availability of various automobiles. Competitor Environment Volkswagen Auto Group is facing intense competition from Toyota and General Motors in terms of market share and revenues. These companies also have their own high end sports cars and luxury cars which directly compete with Porsche and other sports cars owned by VW. This requires VW to design effectively and market their products in a superior way compared to its competitors. III. SWOT Analysis Strengths Porsche is the world’s strongest sports car brand which denotes high loyalty and high quality perception among its customers. It also has a strong culture for technology and innovation which makes its cars highly reliable. In effect, Porsche consistently experiences very high sal es from all its models of sports and race cars. Weakness Although Porsche has proven itself in the market for sports cars, the company has not yet gained a strong reputation for manufacturing other segments such as sedans and SUVs. This makes it difficult for Porsche to  position itself effectively in the new market segments. Opportunity There is an increased demand for SUVs and Sedans in the global market. This is an opportunity for Porsche to increase its revenues by diversifying its product lines for a broader market segment. Threat T he plan of the Volkswagen to let Porsche manufacture a new product lines aside from sports cars can lead to a risk of brand dilution for Porsche. There is a possibility that the perceived quality and high differentiation that Porsche was able to position to the market

Friday, September 27, 2019

The most important threat to network security Assignment

The most important threat to network security - Assignment Example Authentication works on the principles that the presented data must match the data that is already in the database and this is where it can also be turned into the main threat. Featuring authentication as a major threat in network security is based on the fact that user access is granted based on database information. The authentication system can grant access to about anyone who provides similar data to the one pre-stored in the database system. Therefore the person does not have to be the real owner of the information in order to access it. This information could have been phished, eavesdropped or generally illegally obtained from a target victim. Now, authentication proves to be an important threat as it used by almost everyone across the globe and is thus a gateway through many secured systems. From the above discussion we can conclude that authentication remains to be a living matter in internet security. As technology gets better and more advanced, malicious internet users exploit the slightest weaknesses in authentication systems using the very advanced technology meant to provide

Thursday, September 26, 2019

Management- leadership in your orgnization Essay

Management- leadership in your orgnization - Essay Example This task is highly challenging given the kind of challenges that surface the sports field, players’ expectations and attitude, external factors including finances, competition from newer, tougher and innovative teams. This discussion explores all possibilities of finding a suitable leader for this esteemed and critical role. Of the numerous theories and research related to leadership, a few of them will be considered in the present context. Leadership classification based on behavioural aspects will be explored in order to identify what kind of behaviours can be most suitable for the role in question. In addition, contemporary leadership concepts will be explored considering various kinds of challenges contemporary management and competition bring along. Based on the knowledge gained from experience as well as theory and literature, most suitable traits that can be regarded as the best fit for leadership role in Manchester United can be deduced. It is said that leadership emerges from situations; an individual’s knowledge and expertise; his/her beliefs, passion and attitude. However, in the organisational aspect, leaders are usually formed based upon their role or position. These people in the leadership role are expected to deliver exactly as leaders ought to achieve the desired results. Therefore, identification of the right people to fit in this role who can achieve the desired results for the organisation becomes extremely important for the organisation. The leaders so chosen must possess right skills, attitude and qualities which will help the organisation to not only achieve results but also sustain its position for longer period in any given situation. Philosophy of management and literature accounts ‘leadership’ as one of the main factors contributing to the success and/or failure of an organisation. Leadership has been debated by many philosophers and management

Wednesday, September 25, 2019

Charater notebook Article Example | Topics and Well Written Essays - 750 words

Charater notebook - Article Example Additionally, Corie illustrates the theme of change as she seeks to change both Paul and Ethel’s preferences to conform to her own specifications. Consequently, she manages to change her mother’s view towards dating again, as the play reveals that Ethel spent the night at Victor’s house after the blind date. (Simon, 1964) After an argument with Paul, Corie manages to throw him out of the house and as a result of the alienation, Paul takes to drinking and adheres to Corie’s specifications of animproper and undignified man. The play is built on the concept of transition as each character tends to transition into new attributes after a different encounter in the play. Ethel was reserved about the blind date between her and Victor and during the blind date, Paul and Ethel sit on their chairs as Corie and Victor dance with the belly dancer. The twist in character changes sees Ethel step out of her comfort zone and spend the night with Victor on their first encounter a fete which Corie would not have anticipated. Paul decides to walk on the snow bare footed irrespective of his prior reservations stating that the snow was 17 degrees. With respect to the circumstance focused on in the play, the author illustrates the theme of change in the different acts. In act one, Corie notes Paul’s conservative attributes and states some instances where his reservations conflicted with her needs. She notes that while they were in a party, Paul kept staring at his coat instead of mingling with other people who were present.Paul is calm, reserved and dejected and only conforms to a given lifestyle due to factors derived from his career and general outlook to life. He appreciates order and is very reserved when he is in contact with new people, he comes across as a shy person but it is revealed that his line of work forces him to embrace his character. In one of their arguments, Corie states that Paul is just a

Tuesday, September 24, 2019

Does the internationalisation process model explain the Essay

Does the internationalisation process model explain the internationalization strategy of Lenovo In your view what are the succe - Essay Example Outward investment also includes mergers and acquisitions and it is observed that ODI is steadily increasing due to the increasing productivity of the organizations. However, it has been observed that only productive companies can invest in foreign country operation facilities. There is a huge difference in the steadiness and competitiveness of the companies, which results in different productive indigenousness in the host countries. The study will deal with the various outwards opportunities faced by the Chinese organizations in the last two decades from the developing and developed countries. The recent evolution procedure in internationalization process has helped in the significant growth in the outward foreign direct investment. The developed countries are the main source of ODI for the developing economies, which is increasing steadily. It has been observed that China has been the leading source of ODI since the 1990’s and it has also helped in cross border investment fa cilities through the Foreign Direct Investment (FDI) (Vox, 2008). It has been observed that among all the developing economies, China is one of the highest outward investor and the ratio of outward China has been 17 percent. China earns most of its ODI earnings from its manufacturing operations overseas, joint venture mining activities and also by setting up increasing sales office in the overseas operations (Ning, Lane and Sutherland, 2010). The Uppsala Internationalization Process Model As per authors Johanson & Wiedersheim (1977 cited in Ning, Lane and Sutherland, 2010) the internationalization is an incremental process, which involves no regular export activities, export through independent representatives, production and sales subsidiary. These authors developed a theoretical model regarding the internationalization process model. The internationalization process model focused on the development of the individual business organization and the gradual acquisition, integration of activities and the utilization of the operational facilities for overseas expansion. The basic fundamental aspect of the organization is that lack of understanding of the knowledge, which is an important obstacle in the development of the international operational facilities. These need to be acquired through necessary knowledge about the foreign markets, which can lower the perceived risks and the transaction costs and increase the commitment to the foreign markets (Lou and Tung, 2007).The market knowledge and the commitment will affect both the managerial and commitment decisions. It is assumed in the model that the organization strives to keep the risk taking decisions at lower level. The internationalization model assumes that the state of globalization or internationalization affects the perceived opportunities and the risks, which in turn have the potentiality of influencing the commitment decisions. The model describes the various operational phases especially at the multi s tage level. In the first stage the organization’s engagement in a particular country develops according to the chain; the chain involves established market pattern of a particular company (Sauvant, Maschek and McAllister, 2009). In the second stage, the organization enters the developed economy with a psychic distance (Environment.fi, 2012). Although, there are various restrictions regarding the internationalization model which is consistent among the different actors. These elements between the actors can only be judged an

Monday, September 23, 2019

Nurse-Authored features that use Web 2.0 applications Assignment

Nurse-Authored features that use Web 2.0 applications - Assignment Example http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2605032/ While the use of media can be very important to the nurses and other providers of health care there have been more concerns about the use of the social media. Indeed, the use of Web 2.0 tools may derive legal or ethical issues. The use of Web 2.0 tools may jeopardize the privacy and confidentiality of both the employers and the patients. Nurses can breach privacy and confidentiality by posting a photo of the patient on the social medial or comment about a patient (Younger & Morgan, 2011). According to an American research, it is eminent that several nurses have been exposing their patient’s information on public websites. The nurses ended up facing disciplinary measures for their actions. It is also unprofessional for the nurses to use Web 2.0 tools inappropriately. For instance, a nurse can use the media to bully a colleague, this results from online criticism of colleagues. This breaches the code of conduct. This behavior can result in taunting the image of the healthcare professions (Younger & Morgan,

Sunday, September 22, 2019

Literature review on competitive advantage Essay

Literature review on competitive advantage - Essay Example The concept of competitive advantage has evolved over the past few decades and has now become an integral part of strategic management of any organization. Much research has been conducted on the attainment of competitive advantage and effective ways to sustain it. This literature review aims to explain the concept of competitive advantage in the light of different authors, along with their proposals of effective strategies to sustain it. Few examples have been chosen from the available literature to highlight the practical implementation of the concepts of competitive advantage. 2. Literature Review The concept of competitive advantage was introduced in the study of strategic management by Ansoff (1965). His ideas and propositions are known to form the basis of vital aspects of the development of growth strategy of any organization. Lowy and Hood (2004) quoted Ansoff (1965) and stated that his extensive experience and research in the field of diversification planning, highlighted re levant aspects and issues that should be considered for an effective growth strategy. Hindle (2008) also discussed the contributions of Ansoff and stated that some of the valuable contributions of Ansoff’s work in the field of strategic management are related to the attainment of competitive advantage and core competencies. Priemand and Butler (2001) pointed out that Ansoff’s work seemed to stress on the relevance of industry-based factors (threats and opportunities) more than the resource-based ones (weaknesses and strengths). Dix and Mathews (2002) provided a basis of strategy formulation and explained the attainment of competitive advantage; he stated that the development of strategic decisions involve the analysis of the core competencies and resources of the company. Prahalad and Hamel (2003) also considered the identification of core competencies as an important aspect of competitive advantage. The core competencies, that are unique and distinguishing from the co mpetitors, can serve to become the competitive advantage if they are availed in the presence of good opportunities in the market. The concept of competitive advantage was further researched upon by Porter (1998). Porter explained the formulation of a competitive strategy as the broad plan of how businesses should compete in the market (in the presence of various environmental factors) to meet their goals. It also involves the policies according to which goals and objectives of the organization can be met. Porter also stated that competitive advantage can be explained as the combination of having low expenses, differentiation value for the company and a strategy that enables the company to focus on their main objectives. Porter (1998) accumulated all the aspects that might be related to the attainment of competitive advantage onto a single page. He described it as the ‘Wheel of Competitive Strategy’. The underlying bases of the strategy are the basic goals that are aspir ed to be achieved by the company and the vision which is set as the main direction of the company. Various aspects on the rim of the wheel, like marketing, product line, finance and control etc have to be considered to attain competitive advantage in the market, while being influenced by the main vision of the company.

Saturday, September 21, 2019

Old Testament Leadership Essay Example for Free

Old Testament Leadership Essay Introduction The Holy Scriptures are without question a vault of rich wisdom for a variety of subjects. The subject of leadership is no different; in fact a case can perhaps be made that the Holy Scriptures are word pictures of God’s leadership for humankind. Whether it is read as the divinely, inspired word of God, or as a mere historical account of ancient Israel, or as a book of pure myths, the reader will encounter fascinating people with extraordinary leadership qualities. The following will take a glimpse at Moses; the man whom God chose to be the leader of the Hebrew slaves in Egypt, into a land that flowed with milk and honey. The following will be an attempt to document moments of strength, weakness, failure, and victory. This paper will conclude by identifying Moses as a servant leader who, in spite of human failure, ultimately fulfilled the will and purpose of God. Leadership Style The style of leadership that Moses demonstrated was clearly Servant leadership, â€Å"In order to retain the potential in this young man, God led him into the Midian desert to learn a new way of life† (Kuest, 2009). As a shepherd he learned to serve, and became servant to the purpose and will of God. Relationships Moses although he spent much time on Mount Sinai (in relationship with God), he also spent time with his successor Joshua whom he had prepared for Servant Leadership (Num. 11:28). Incarnation Moses was not a detached leader. In fact throughout the wilderness journey, he was among the people. He was an accessible leader. Evidence of this fact is found when there were needs the people went straight to him (Num. 20:1-13). Covenants OLD TESTAMENT LEADERSHIP 3 Moses was perhaps known for many things; in fact it is widely known that Moses is regarded as one of the Jewish people’s greatest prophets/leaders. One specific thing that Moses is known for is the Mosaic Covenant. The bible states â€Å"If you obey me fully and keep my covenant, then out of all the nations you will be my treasured possession. Although the whole earth is mine, you will be for me a kingdom of priest and a holy nation† (Ex. 19:5-6). Moses In spite of his greatness, Moses was a man with weaknesses. As the time when he was supposed to speak to the rock but instead hit the rock, thus failed to do what he was instructed to do. Moses over saw victories, and uprisings by his own people, however, through it all he was the man whom God had called and he was servant to that calling. Conclusion Perhaps his greatest strength was his relationship with God, the time that he spent in the presence of the Almighty God had to be his constant reminder that what he was doing was greater than himself. Moses’s weakness and failure did not hinder him from desiring to see God’s glory, these experiences on the mountain top made him who he was. OLD TESTAMENT LEADERSHIP 4 References Kuest, R. (2009). Uncommon leadership: Servant Leadership In A Power-Based World. Second Edition. New Missions Systems International. Ft. Myers, Fl. KJV (2013). iPad app.

Friday, September 20, 2019

Kicking Performance and Kick Co-ordination Training

Kicking Performance and Kick Co-ordination Training The effects of a strength and kick co-ordination training programme on lower limb velocity, ball velocity and knee extensor strength: Differences between male and female football players. Football (also known as soccer) is one of the most popular team sports worldwide (Katis Kellis, 2007) with hundreds of millions purported to play (Masuda et al, 2005) and in accordance is watched on 6 continents (Ekstrand, 1994). Due to this popularity, football is a widely researched area with the volume of literature extensive. Various research programmes have been undertaken in the area of football kick biomechanics with a range of parameters being measured and analysed, in an attempt to understand the fundamental skills required by the sport, especially the maximal soccer kick (Lees Nolan, 1998). Although the field is widely researched gaps still transpire. One of these gaps is gender differences; little research is documented on the kick biomechanics of womens football as said by Barfield et al (2002), who states the rapid rise in female participation in soccer worldwide has not been followed by a corresponding increase in the number of studies biomechanically that target fema le kicking patterns to determine if differences exist between males and females. Lee and Nolan (1998) state that success in football depends on kicking performance, with new aspects of this being identified (Kathis Kellis, 2007). Shan and Westerhoff (2005) believe that the scientific understanding of the sport is not yet on the same echelon as its practice, subsequently its partakers acquire their skills not through research based instruction but through individual experience; suggesting that biomechanical feedback may facilitate an athlete further. Kicking performance and kick co-ordination Biomechanical kicking success in football has been measured predominately by maximum ball velocity (Markovic et al, 2006) with Dorge et al (2002) stating it could be this speed that is particularly important when kicking towards goal. When kicking a ball, players will use the most appropriate form dependant on the intent and nature of the outcome (Numone et al, 2002) and according to a study by Grant et al (1998), who analysed data from the 1998 World Cup, the instep kick (IK) (see figure 1) and sidefoot kick are the most commonly used techniques to score. The ball velocity of the maximum IK is the main indicator in kicking performance (Orloff et al, 2008) and has been said to be the result of various factors including technique (Lees and Nolan, 1998), gender (Barfield et al, 2002), muscle strength and power of players (De Proft et al, 1988; Dutta Subraminium, 2002). The IK is a fundamental skill that is used on many occasions during football (see figure 1), with Orloff et al (2008) stating that the mechanics in instep kicking are critical in determining kick performance. Transfer of momentum from the thigh to the leg is believed to play an important role in instep kicking, however these claims have not been conclusively quantified (Dunn Putnam, 1988). The IK involves a sequence of momentum from proximal (thigh) to distal (shank and foot) body segments in the kicking limb as it is a swing action (Barfield et al, 2002) that should be a natural fluid motion (Clagg et al, 2009). When a kick is performed the proximal segment initiates the movement taking the kicking leg backwards, with the distal segment lagging behind, forward movement of the leg occurs when the proximal segment has reached its potential at backswing and is brought forward whilst the knee continues to flex (Wickstrom, 1975; Dorge et al, 2002). This is followed by a deceleration of the proximal segment due to motion dependant moments from the shank (Putnam, 1991); upon ball impact the proximal segment is almost stationary, at which point the distal segment is accelerating and vigorously extending about the knee to almost full extension at ball impact (Wickstrom, 1975) (see figure 2). At the point of contact, of instep to ball, powerful kickers keep the foot/ankle compl ex locked and plantarflexed, as a consequence the forces that propel the ball are maximised (Hay, 1996; Tsaousidid and Zatsiorsky, 1996). Lower limb velocities (Levanon Dapena, 1988) are said to be an important determinant of ball velocity. Manolopoulos et al (2006) state that a greater shank velocity is indicative of a more powerful shot, the study conducted by Manolopoulous et al (2006) concluded that a strength and kick co-ordination training programme over a ten week period can cause an improvement in angular velocities of segments. A study conducted by Barfield et al (2002) found that a greater ball velocity was found with greater angular velocity of the distal segment (in male footballers). From this literature it can be assumed that a person with a high lower limb velocity should have a high ball velocity. It has been theorised that the length, speed and angle of approach are the most important aspects of the preparatory phase, before movement transpires, having a significant effect on football kick success (Isokawa Lees, 1988; Kellis et al, 2004).When a football kick is performed the athlete may kick the ball from a stationary position or approach the ball from a certain distance (Kathis Kellis, 2007), Opavsky (1988) states that higher ball velocities are established when there is a running approach, of at least two to three steps, to the ball in contrast to a stagnant approach. Another important point is that a ball will in most cases be moving towards the player; consequently the player will not be hitting a stationary ball as is often the case in laboratory conditions, supported by Tol et al (2002). Kellis and Katis (2007) state that higher ball speed values have been during competition in contrast to a laboratory setting. Isokawa Lees (1988) concluded that on average maximum swing leg velocity occurred at an approach angle of between 30 ° and 45 °, with a maximum velocity ensuing at 45 °. From this finding it can be alleged that 45 ° is the optimal approach angle for a maximal velocity instep soccer kick (Clagg et al, 2009). Maximum ball speed and its relationship with accuracy is one which has been investigated with interesting results. Asami et al (1976) reported that by demanding both speed and accuracy from players, an 80% drop of the maximal value occurs as a result, this is a considerable reduction; however is further supported in literature stating that accurate kicking is achieved through slower ball velocities and kicking motion (Katis Kellis, 2007; Lees Nolan, 1998; Teixeira et al, 1999). Katis Kellis (2007) deduce that a defined target, such as a goal, will determine the actual constraints on accuracy, with its manipulation leading to a trade-off between speed and accuracy of ki ck. Another factor that could inhibit a maximal velocity IK is the kicking limb chosen. Many studies have found that higher ball velocities are found when football players kick with their dominant limb as opposed to kicks with the non-dominant limb; this has been attributed to higher foot speeds and a better inter-segmental pattern (Numone et al, 2006; Dorge et al, 2002); Manopoluous et al (2006) state that ball speed is the result of several segmental actions of the body during a kick, figure 3 illustrates the movements of the body segments during different phases of the kick. Female and Male footballers Studies regarding male football performance in relation to kick biomechanics is a well researched area, however this does not correlate to the lack of knowledge gained when researching for female information. This statement is supported by McLean et al (2005) and Hewett et al (2006) who both acknowledge that few studies have characterised or examined female athletic performance in specific sports such as soccer, along with the assertion from Barfield (2002) that the rapid rise in female participation in soccer worldwide has not been followed by a corresponding increase in the number of studies biomechanically that target female kicking patterns to determine if differences exist between males and females. It is thought that the identification of kinematic differences between the sexes could potentially play a critical role in the teaching and training of aspiring female soccer players (Barfield et al, 2002). Consequently it can be assumed that female studies should be regarded to be o f high importance and those found could help to eradicate huge differences between the sexes. With this said there are a few studies that have compared male and females, and studies that have solely looked at females. A study by Barfield et al (2002) investigated differences between elite female and male soccer players. The study concluded that males kick the ball with greater ball velocity on the instep kick than women (see table 1 for mean ball velocity achieved in this study) and the differences in kinematic variables investigated were significantly different between the sexes, although this was small. However in this study there was one exception to the case, as it was found that one female generated greater ball velocity on two of her three kicks than the males on her dominant side, suggesting that not everyone follows the trend. A study by Tant et al (1991) supports Barfield et al (2002) findings, as it was found that male players produce greater ball speeds than their female counterparts, they attributed this finding to greater strength that males recorded; as tested on an isokinetic dynamometer. In contrast to these findings, a study by Orloff et al (2008) comparing the kinetics and kinematics of the plant leg position between males and female collegiate soccer player during an instep kick, found that ball speed did not differ significantly between the two sexes as was hypothesised. Table 1 illustrates mean ball velocities, ranging from 15 to 30 m.s-1, achieved during a number of studies most of which occurred with the instep kick. Only one study shown provides details of a mean female ball velocity once more indicating the lack of research on female football participation. Strength training It has been stated that kicking performance when measured by means of maximal ball velocity, can be improved by strength training (DeProft et al, 1988; Jelusic et al, 1992; Taiana et al, 1993), relating to Wisloff et al (2004) who states that maximal strength is an important factor in successful soccer performance; this is because of the apparent demands visible from the game. Strength has been defined as the integrated results of several force producing muscles performing maximally, either isometrically or dynamically during a single voluntary effort of a defined task (Hoff Helgerud, 2004); Schmidtbleicher (1992) states that strength influences all other components and thus it is located in an upper hierarchal level. The use of strength training is a common means of improving muscle function and has been said to develop performance of kicking skill through apposite training (Masuda et al, 2005). Gomez et al (2008) believe that the coalescing of strength training with technical training involving motor tasks is required for improvements in performances to occur, this relates to the traditional training principle of specificity; Behm Sale (1993) and Sale (1992) support this principle as they believe that training is intended to correspond to specificity in sport itself, this is in terms of contraction type, contraction force, movements and velocity. This can be related to football training, since the fundamental aspect of football is kicking and this involves a complex series of synergistic movements of the lower limbs, which in essence would be extremely complex to imitate with simple strength-training movements (Bangsbo, 1994). Therefore strength training should be integrated into football training with several types and speeds of training involving the actual movement pattern in order to increase performance (Masuda et al, 2005). If a relationship between muscle strength and performance exists then it can be assumed that positive effects should become perceptible when measuring ball velocity, if these performance enhancing training benefits are not evident then athletes may not be motivated to participate in strength training (Myer et al, 2005). Myer et al (2005) conducted a study that explored the effects that a comprehensive neuromuscular training programme had over a period of six weeks. The investigators measured performance and lower extremity movement biomechanics in female athletes, it was concluded that female athletes who trained with this six week programme could gain performance enhancements and significant improvements in movement biomechanics. Myer et al (2005) states that female athletes may especially benefit from multi-component neuromuscular training, as females often display decreased baseline levels of strength and power when compared with their male counterparts. The previous statement is supported by Kraemer et al (2003) and Kraemer et al (2001) who believe that a comprehensive training programme may significantly increase power, strength and neuromuscular control and therefore decrease gender differences in these measures. Campo et al (2009) conducted a study over a period of 12 weeks on female soccer players; this involved the undertaking of a plyometric program. It was found that this program produced improvements in explosive strength in the female athletes and consequently this improvement could be transferred to soccer kick performance in terms of ball velocity; this study also lends evidence to the use of plyometrics in a strength training program. Studies by Aagaard et al (1996) and Trolle et al (1993) found similarities within their results, since no significant improvements in kicking performance were established after knee-extension strength training. However De Proft et al (1988), Gomez et al (2008) and Monolopoulos et al (2006) all conducted strength training programmes that combined strength with another form of training, football training, plyometric exercises and technique exercises (kick co-ordination) respectively, found significant improvements in kicking performance (maximal instep football kick). The studies by Gomez et al (2008) and Myer et al (2005) took place over a 6wk period, with the study by Monolopoulos et al (2006) taking place over 10 weeks and Campo et al (2009) over a 12 week period, suggesting that the length of a training programme is interchangeable to gain relevant results. Hoff Helgerud (2004) state that research based on strength training is often not conclusive; this may be due to the variances in measurement techniques. Knee muscles Various studies have examined the muscle activation patterns that arise during a football kick; one of the findings to come from studies is the high activation of knee muscle groups (De Proft et al, 1988). To examine this further, maximal isokinetic data has been undertaken to study the moment of force of the knee extensors and flexors, this has been investigated in male players (Brady et al, 1993; Oberg et al, 1984; Oberg et al, 1986), female players (Reilly Drust, 1997) and in relation to football kick performance (Cabri et al, 1988; Poulmedis, 1988; Reilly Drust, 1997). Rapid knee flexion and extension is an important part of a football kick as the knee flexes then extends at impact, this movement is accompanied by a stretch of the knee musculature during backswing ensued by immediate shortening during distal segment movement (Katis Kellis, 2009). The action of the proximal segment being brought forward whilst the distal segment lags behind (as the knee is still flexing) serves to stretch the extensor muscles of the proximal segment before shortening of them is needed, this necessitates the generation of large end-point speed (Lees Nolan, 1998). It can be assumed that if the knee extensor muscles are powerful then they should facilitate in large end point speed (greater ball velocity). Isokinetic muscle testing is often used to evaluate strength within sport, with a range of data obtainable from its use (Ozcakar et al, 2003) however controversy surrounds its application. Wisloff et al (2004) believe that isokinetic tests do not reflect the actual movements of the lower limb segments during a football kick, and Dvir (1996) states that this is due to the nature of testing knee extensors, as it is a single-joint configuration, it is limited in functional scope. A study by Reilly Drust (1994), have reported results for female soccer players that show a high correlation between ball speed and knee extensor strength, this is supported by McLean and Tumilty (1993) who state that maximal strength of knee extensor muscles is an important determinant of kick performance. Asami et al (1982) report that the ball velocity and knee extensor strength relationship of the kicking limb may well depend on the skill level of the players, suggesting that the strength of the muscles in the knee has less input on ball velocity in football players whom are more skilled. This statement implies that less skilled players rely more on their muscular strength than skill. De Proft et al (1988) conducted a strength training programme for footballers and found a 25% increase in concentric muscle strength of extensors. Studies have shown that knee extensor strength and kick performance however did not have a positive relationship, as for example Masuda et al (2005) found that knee extension/flexion strength was not correlated with the ball velocity and Aagaard et al (1996) conducted a 12 week training programme on the isokinetic strength of the knee extensors and flexors, with an increase in isokinetic and concentric strength found, but it was concluded that this gain did not help facilitate improvements in performance. Expectations and hypotheses From current literature it is expected that the use of a strength training programme integrated with technical game play, will have a positive significant improvement from pre-test to post-test on both females and males as previous research has shown that a strength training programme improves performance (Manolopoulos et al., 2004; De Proft et al., 1988; Dutta Subramanium, 2002), however the female group are expected to have a bigger improvement as they often have lower level of strength to start (Myer et al, 2005) leaving more room for improvement, and men will have a better kicking performance determined by ball velocity as they possess more power (Barfield et al, 2002; Tant et al, 1991). It is also expected that an improvement in knee muscle strength, limb velocity and foot velocity at ball contact will lead to an improvement in ball velocity as it can be said that kicking performance can be related to leg muscle strength as it is the muscles which are directly responsible for t he increasing speed of the foot and therefore resultant ball velocity (Lees Nolan, 1998). This information leads to the hypotheses for this study. It is hypothesised that after a strength training and kick co-ordination programme both men and women will find significant improvements in their kicking performance and knee extensor strength, females will have a greater improvement in the pre to post test results than their male counterparts, men will have greater ball velocity both pre and post test than women, improvements in knee strength, limb velocity and foot velocity will lead to an improvement in ball velocity. Materials and methods Pilot testing Before any real data collection commenced two pilot tests were conducted. This was to enable any aspects of the testing procedure to be checked, allowing areas of weakness and uncertainty to be enhanced and/or changes needing to occur to be implemented before actual testing transpired. The first pilot test involved kinematic analysis data collection, using Qualysis Oqus 3D motion capture system, at a sampling rate of 500 Hz, under laboratory conditions. A participant was marked up with a lower limb marker set (see figure 7 and 8), a warm up and relevant instructions were given. 5 maximum velocity kicks were performed with the dominant foot at a target (1.82m x 1.2m) set 6 metres away from the position of the ball, a 2metre approach distance of self selected approach angle was allowed and a Sports radar precision gun (SRA 3000) was positioned behind the target. Uncertainties regarding target size, approach distance and quality of data collection were put under scrutiny. Collaboration with the participant allowed for uncertainties such as target size and distance of approach to be modified. Quality of data was checked and it appeared not all parts of the movement were captured or markers visible at all times (see figure 4). Due to these findings the pilot testing res ulted in changes to the planned protocol, such as approach distance (an extra metre allowance was given), bandage size (was halved to prevent covering of markers), calibration technique in regards to area dynamically covered was increased (to cover all movement performed) and appropriate marker placement took place (incorrect palpitation had previously taken place). The second pilot test was an extension of the first, relevant changes were made as noted in pilot test 1, with testing on the isokinetic dynamometer (ISOCOM- isokinetic technology, eurokinetics) included for strength data. A warm up was conducted prior to use, with the involvement of dynamic movements to help replicate the movement on the isokinetic dynamometer, once completed 5 practice trials took place followed by 3 trials that were collected as the data. This allowed for any time restraints for the two conjoined to be noted. It was found that the testing on the isocom took longer than the kinematic data, as it was expected that this would be roughly the same time; so implementation of a suitable time system could occur. Marker issues previously noted in pilot 1 were not problematic; this could be due to the increased area of calibration and anatomical landmark markers not being covered by bandages. Figure 5 shows that most data was captured and tracked, giving evidence to improve ments made being effective, when comparing figure 4 and 5 against each other. The extra metre approach distance allowance proved successful with collection of data running more smoothly. Participants Sixteen amateur football players volunteered to participate in this study, eight females and eight males. Participants were split with regards to gender and assigned to either the female control group (FCG) (n= 4 females; age 20  ± 0.8 years; height 169  ± 5.8cm; body mass 68.9  ± 11.1 kg; all mean  ± std), the male control group (MCG) ( n= 4 males; age, 21  ± 1 year; height 177.5  ± 7 cm; body mass 77  ± 10 kg; all mean  ± std), the female strength training experimental group (FTG) (n= 4 females; age 20  ± 1.3 year; height 160  ± 1.8 cm; body mass 58.1  ± 4.3 kg; all mean  ± std ) or the male strength training experimental group (MTG) (n= 4 males; age 17  ± 1. 2 year; height 174.9  ± 4.1 cm; body mass 73.1  ± 13.7 kg; all mean  ± std). All females were right foot dominant, with 6 males being right foot dominant and 2 left foot dominant. Foot dominance was self selected based on the players reply to which foot they preferred kicking with to gain a maxi mal ball velocity outcome. Subjects were informed about the requirements, benefits and risks of the study, and completed an informed consent form and Par- Q prior to any testing (see Appendix). Kick performance test / Biomechanical testing In accordance to the study of Masuda et al (2004) kick performance was evaluated by measuring the maximal and mean velocity of the ball, by the use of Sports radar precision gun (SRA 3000), and a set number of trials in which the ball hit the target (5 times). Other measurements from this maximal kick were also taken by means of Qualysis Oqus 3D motion capture system, this uses multiple cameras (an eight camera system) to reconstruct three dimensional movement data; this was captured at a sampling rate of 500 Hz for 5 seconds. This enabled human movement analysis during the execution of a motor task (instep kick) to be traced via the use of reflective markers, gathering quantitative information (Cappozzo et al, 2005). The calibrated anatomical system technique (CAST) marker set was used (Cappozzo et al, 1995), each participant was instrumented with 44 retroflective markers (see figure 7 and 8). All markers and clusters used when capturing the data was with the aim to: not significant ly modify the performance being captured and measured as stated by Brand and Crownshield (1981). These markers were placed on anatomical landmarks (medial and lateral side of proximal and distal end of segements) by palpation using guidance from Croce et al (2005), and on segments using clusters in accordance with Manal et al (2000) who state that a rigid shell with a cluster of four markers is the optimal configuration for a cluster set. Specific shoes were provided for all participants, with the anatomical landmarks placed on these prior to testing (figure 6). Before data collection of each participant commenced, the motion capture system was calibrated (see figure 9a) to allow information gathering of spatial location of anatomical landmarks in regards to a known frame of reference (Cappozzo et al, 1994). This occurred by the use of a wand, which carries two markers of a given distance (750.5mm), and is made to coincide with the target anatomical landmarks by moving dynamically through the volume of cameras (Cappozzo et al, 2005; Richards, 2008) over a calibration frame placed in the data collection area (see figure 9b), this is removed so data for the intended activity (instep kick) can be performed and recorded. A static of each participant with clusters and anatomical markers was then taken (see figure 10) asking participants to gain a posture where anatomical markers can be seen by two or more cameras for at least a frame. Once this was achieved only tracking markers were kept on (thigh and shank clusters, anterior superior iliac spin e (ASIS), posterior superior iliac spine (PSIS), greater trochanter, iliacs, foot markers except 1st and 5th metatarsals), as Cappozzo (1984) states markers used for identifying anatomical landmarks should be removed before physical movement is performed. Qualysis Track Manager (QTM) was the software used to capture the data including statics, dynamic movement and calibration. The set-up design for the kick performance test can be seen in figure 11. Specific instructions were given to participants regarding their kicks, it was stated that although the kicks that missed the target would be repeated, they should not sacrifice speed in order to improve accuracy. A ball of standard size and standard inflation (Fà ©dà ©ration Internationale de Football Association, FIFA, standard) was used. A warm-up was conducted, this took place on a treadmill (5-10 mins) followed by stretching, once the candidate felt they had been sufficiently warmed up practice trials took place. 2-3 practice trials were implemented allowing participants to acquaint themselves with test equipment and kicking conditions. Participants were allowed to self select their approach angle to the ball (between 0 ° to 60 °), the only restraint utilised was the approach distance to the ball; participants were allowed a run up of between 2 to 3 metres this distance was marked and made noticeable to the participants. 5 successful trials were recorded on the dominant leg, a successful trial was classed as one which hit the target and the motion capture data was seen to be adequate, only 3 of these trials were analysed (data deemed as poor quality was discarded). This testing took place both pre and post intervention. Once data collection had been completed in QTM, the information was used and markers labelled; including both static and dynamic data. For dynamic data, this took place through naming the markers in a dynamic frame and processing this to the corresponding data. An aim model was built, this was then generated and batch processed to all the dynamic trials, the checking of each anatomical frame ensued to ensure all markers were labelled correctly. Once this procedure was completed data was then exported to Visual 3D for further analysis and model building. Data from QTM (see figure 10) was built in to actual body segments that could be visually seen and recognised; this occurred through model building on Visual 3D. Figure 12 shows some examples of how the right hand side of the body was built; the same was done for the left side. Once model building had been completed, all trials were checked and different pipelines were put in place (a set of commands that can change or produce data wa nted). An interpolation pipeline was conducted on the data to fill in missing data points, a ten frame gap fill was instrumented, filling in gaps more than this suggest that data is of poor quality. A low pass filter (using Butterworth filter) pipeline was put in place on the data, to smooth and remove noise that could be due to relative and absolute errors (soft tissue artefacts) (Richards, 2008), with a cut of frequency of 6 Hz used. Cut off frequencies previously used in other literature are between 6-18 Hz (Andersen et al, 1999; Dorge et al, 2002; Nunome et al, 2002; Teixeira, 1999). To determine heel strike of the non-kicking leg at placement the event minimum pipeline was used on the non-dominant leg (heel), to find the lowest point of the heel in the z axis (see figure 13). For information between a range of movements to be determined, the event ball contact was defined (see figure 14). Segment velocity (in x axis) of the thigh, shank and foot was extracted from the data, in the reports section, using the range of events previously defined (non-dominant leg heel contact and ball impact) to visually see data between and up to those chosen points. Muscular strength test Isokinetic concentric peak torque of the dominant leg was measured using an isokinetic dynamometer (ISOCOM- isokinetic technology, eurokinetics) see figure 15. The strength test involved movement of the knee (extension and flexion) to detect muscular strength in the knee extensor muscle groups. The angular velocity used for the movement was 60 ° s-1; this angular velocity has been used by many investigators to evaluate knee muscular strength of football players (Kellis et al, 2001; Ergun et al, 2004; Dauty et al, 2002). Prior to undergoing the test a warm-up was conducted, consisting of a 10 min warm up of cycling and 5mins of dynamic stretching, completion of this lead to the familiarisation process of the test protocols for the isokinetic movements that were tested including practice trials. Three maximum voluntary repetitions of flexion and extension at 60 ° s-1 took place in a seated position, with five familiarisation trials taking place beforehand, the participants were war ned as to when the real trials were about to commence. The peak torque value was used to represent muscular strength; this is considered to be the gold standard in isokinetic measurement (ISOCOM testing and rehabilitation user manual). This testing took place both pre and post intervention with the same protocol applied for both testing. Training programme The training programme undertaken in this study was a synthesis of findings derived from published articles for example training books and journals (Manolopoulous et al, 2006; Zatsiorsky Kraemer, 2006; Chu, 1998). The FTG and MTG followed a 6-week training programme consisting of 1 session per week (each session consisting of up to an hour and a half) including a warm up and main activities. The main activity consisted of a circuit style fashion plyometrics, kick co-ordination and strength work ensemble, with exercises such as; lunges, squat jumps, resistance band work, core stability ball work and hurdle work included. Technical game play was incorporated into each session at the end of the circuit; with the aim of improving k

Thursday, September 19, 2019

Explanation Of How Both Long-t :: essays research papers

Using some of the causes in the list explain how both long-term and short-term causes contributed to Hitler’s rise to power. The treaty of Versailles caused a reaction of horror and outrage to the Germans. They were being forced to accept a harsh treaty without any choice or even a comment. Ebert was in an extremely difficult position. So he decided to accept the treaty of Versailles’ terms. When Ebert agreed to sign the treaty the Germans were furious, they were pleased the war had ended but they didn’t want humiliation. Hitler hated the treaty of Versailles, and he promised to kick out the treaty of Versailles as he had said in the Nazis’ Twenty-Five Points. People began to believe in Hitler. His Twenty-Five Point programme showed that the treaty of Versailles could be dealt as any other task, and he promised to abolish it right away. The treaty of Versailles was the most important of the Long-term causes because it gave Hitler the opportunity to share the same ideas as the Germans about the treaty of Versailles. So he took advantage in the middle of a politically destabilised German y. Short-term causes like the Munich Putsch helped his popularity, which was essential to his rise to power. Source 3: During the Munich Putsch Hitler said, â€Å"The Bavarian Ministry is removed. I propose that a Bavarian government be formed consisting of a Regent and Prime Minister invested with dictatorial powers... The government of the November criminals and the Reich president are declared removed... I proposed that until accounts have been finally settled with the November criminals, the direction of the policy in the National Government be taken over by me...† The Munich Putsch was a disaster for Hitler. People didn’t rise to support him. Hitler was arrested and charged with treason. In trial, Hitler gained lots of publicity and his ideas were reported in newspapers. Source 4:During the trial Hitler said, â€Å"I alone bear the responsibility but I am not a criminal because of that... There is no such thing as high treason against the traitors of 1918... I feel myself the best of Germans who wanted the best for German people.† Hitler convinced the judges, and got five years in prison instead of a life sentence, but Hitler served only nine months in Lansberg prison. Ludendorff was freed with Hitler. During his nine months in Lansberg prison Hitler wrote Mein Kampf, which expressed Hitler’s ideas towards Germany’s future. Explanation Of How Both Long-t :: essays research papers Using some of the causes in the list explain how both long-term and short-term causes contributed to Hitler’s rise to power. The treaty of Versailles caused a reaction of horror and outrage to the Germans. They were being forced to accept a harsh treaty without any choice or even a comment. Ebert was in an extremely difficult position. So he decided to accept the treaty of Versailles’ terms. When Ebert agreed to sign the treaty the Germans were furious, they were pleased the war had ended but they didn’t want humiliation. Hitler hated the treaty of Versailles, and he promised to kick out the treaty of Versailles as he had said in the Nazis’ Twenty-Five Points. People began to believe in Hitler. His Twenty-Five Point programme showed that the treaty of Versailles could be dealt as any other task, and he promised to abolish it right away. The treaty of Versailles was the most important of the Long-term causes because it gave Hitler the opportunity to share the same ideas as the Germans about the treaty of Versailles. So he took advantage in the middle of a politically destabilised German y. Short-term causes like the Munich Putsch helped his popularity, which was essential to his rise to power. Source 3: During the Munich Putsch Hitler said, â€Å"The Bavarian Ministry is removed. I propose that a Bavarian government be formed consisting of a Regent and Prime Minister invested with dictatorial powers... The government of the November criminals and the Reich president are declared removed... I proposed that until accounts have been finally settled with the November criminals, the direction of the policy in the National Government be taken over by me...† The Munich Putsch was a disaster for Hitler. People didn’t rise to support him. Hitler was arrested and charged with treason. In trial, Hitler gained lots of publicity and his ideas were reported in newspapers. Source 4:During the trial Hitler said, â€Å"I alone bear the responsibility but I am not a criminal because of that... There is no such thing as high treason against the traitors of 1918... I feel myself the best of Germans who wanted the best for German people.† Hitler convinced the judges, and got five years in prison instead of a life sentence, but Hitler served only nine months in Lansberg prison. Ludendorff was freed with Hitler. During his nine months in Lansberg prison Hitler wrote Mein Kampf, which expressed Hitler’s ideas towards Germany’s future.

Wednesday, September 18, 2019

hemophilia Essay -- essays research papers

Hemophilia is a genetic bleeding disorder. People who have hemophilia have a deficiency or an absence of a coagulation protein. A blood clotting factor is deficient or absent. Bleeding is most often into joints, such as the knee, elbow, or ankle, but bleeding can occur anywhere in the body. People with hemophilia bleed longer, not faster. The severity of hemophilia varies greatly. Hemophilia A and Hemophilia B are the most common genetic bleeding disorders. Hemophilia A is observed in 80 percent of hemophiliacs and is a deficiency or absence of Factor VIII. It can also be referred to as "classic" hemophilia. In the second most common, hemophilia B, factor IX is missing. This is also known as the "Christmas Disease" because of the surname of the first patient studied. Hemophilia was identified as early as biblical times. Doctors in medieval times were familiar with it as well. In 1803, a Philadelphia doctor published the first description of hemophilia in the United States. But it was not until 30 years later that hemophilia became widely recognized. Hemophilia later developed a reputation as the "royal disease" because it passed from Queen Victoria of England to her descendants throughout the royal houses of Europe. About eighty percent of all cases of hemophilia have an identifiable family history of the disease; in other instances, it may be attributable to a spontaneous mutation. Researchers recently discovered that the spontaneous mutation of the factor VIII gene in two children was due to the attachment of a foreign "jumping gene" that disrupted the blood-clotting ability of the factor VIII gene. Inheritance is controlled by a recessive sex-linked factor carried by the mother on the X chromosome. A probability of one in two exists that each boy born to a normal male and a carrier female will be hemophiliac and the same chance that each girl of this union will be a carrier. Of the children of a hemophiliac male and a normal female, all the girls will be carriers and all the boys will be normal. Males cannot transmit the disability, and female carriers are free of the disease. Conventional wisdom suggests that 1 in 10,000 males in the United States have hemophilia. However, increased research and focus, on bleeding disorders in general and on bleeding disorders in women specifically, suggest a shift in what... ...h factor VIII replacement therapy is best for them. Inhibitors are proteins called antibodies that are made by our immune system to defend us from harmful disease. When our immune system identifies a foreign substance, it makes antibodies that will specifically recognize that substance and destroy it. In some individuals with severe hemophilia, the factor VIII replacement therapy is identified as a foreign substance by their immune system. If this happens, their immune system will make antibodies against factor VIII. These antibodies will inhibit the ability of the factor to work in the clotting process. The higher the antibody or inhibitor level, the more factor VIII replacement therapy it takes to overcome the inhibition and produce clotting. This can complicate the treatment of a bleed. The good news is that there are different types of therapies available to successfully treat most individuals who develop inhibitors. Work Cited Louis Levine, B.S., M.S.Ed., A.M., Ph.D. Professor, Department of Biology, City College of New York. "Hemophilia," Microsoft ® Encarta ® Online Encyclopedia 2000 http://encarta.msn.com  © 1997-2000 Microsoft Corporation. All rights reserved.

Tuesday, September 17, 2019

Charles Dickens Great Expectations Essays -- Charles Dickens Great Ex

Charles Dickens' Great Expectations One of Dickens’ most popular novels ‘Great Expectations’ is a griping search for identity- the narrator’s self-identity Pip has been born into a difficult world in the early years of the 19th Century. Philip Pirrip is the narrator of ‘Great Expectations’. In the book he is known as Pip. He called himself Pip because as a young child his infant tongue could only get across to Pip. I the first few chapters of the book he is described as a timid, sensitive and guilt-ridden person. His parents had died earlier, probably due to poverty. Pip is living with his sister, who intimidates him in every form. We realise his intimidation when he arrives late from the graveyard, â€Å"I twisted the only button on my waistcoat round and round, and looked in great depress at the fire. Tickler was a wax-ended piece of cane, worn smooth by collision with my tickled frame† I see a parallel between Dickens and Pip. Dickens’s lived in an over-crowded place when he was young. His parents had no intentions of sending him to school. He spent his days running errands and doing chores around the house also his younger sister died of smallpox just like, Pip’s brothers and sisters. Dickens was very concerned with social issues like poverty. At the time when the book was written, there was a very high level of infant mortality, which was made worse by deaths among poor adults, hence the number of orphans. The first meeting with Magwitch is in the churchyard, where Pip is lost in childish absorption grappling with his family’s fate. His state of mind is very unstable when Pip is grabbed violently and the convict threatened to cut his throat if he was to make noise. Pip imagines Magwitch as a pir... ...r. Pip felt, Estella looked down on him because he was poor and not a gentleman. Pip was asked to play, but he didn’t know how to ‘play’. Estella lived in a society where her class did not have to work, and we read that Pip wanted to leave when he was told to ‘play’ because he did not understand the word ‘play’. In chapter 9, when Pip returns home his shame will not allow him to tell the truth to his sister and Pumblechook so he is exaggerates. We see that Pip is telling Joe about his real feelings about his trip to ‘Satis House’. Unlike the theft, which he kept secret, he eventually confides to Joe because he knows Joe will keep an open mind and he is the only one person he can speak to without being punished and having a guilty conscience. What he is confiding to Joe is his shame as a working-class person and how he must change in order to win Estella.

Monday, September 16, 2019

A Review of the Role of Soluble Fiber in Health with Specific Reference to Wheat Dextrin

Journal of International Medical Research http://imr. sagepub. com/ A Review of the Role of Soluble Fiber in Health with Specific Reference to Wheat Dextrin JL Slavin, V Savarino, A Paredes-Diaz and G Fotopoulos Journal of International Medical Research 2009 37: 1 DOI: 10. 1177/147323000903700101 The online version of this article can be found at: http://imr. sagepub. com/content/37/1/1 Published by: http://www. sagepublications. com Additional services and information for Journal of International Medical Research can be found at: Email Alerts: http://imr. agepub. com/cgi/alerts Subscriptions: http://imr. sagepub. com/subscriptions Reprints: http://www. sagepub. com/journalsReprints. nav Permissions: http://www. sagepub. com/journalsPermissions. nav >> Version of Record – Feb 1, 2009 What is This? Downloaded from imr. sagepub. com by guest on March 27, 2013 The Journal of International Medical Research 2009; 37: 1 – 17 A Review of the Role of Soluble Fiber in Health wit h Specific Reference to Wheat Dextrin JL SLAVIN1, V SAVARINO2, A PAREDES-DIAZ3* 1 AND G FOTOPOULOS4Department of Food Science and Nutrition, University of Minnesota, St Paul, Minnesota, USA; 2 Department of Internal Medicine, Gastroenterology Unit, Genoa, Italy; 3Novartis Consumer Health, Parsippany, New Jersey, USA; 4Novartis Consumer Health, Nyon, Switzerland dextrin, based on a search of PubMed. The evidence suggests that soluble fibers help to regulate the digestive system, may increase micronutrient absorption, stabilize blood glucose and lower serum lipids, may prevent several gastrointestinal disorders, and have an accepted role in the prevention of cardiovascular disease.It is concluded that supplementation with soluble fibers (e. g. wheat dextrin) may be useful in individuals at risk of a lower than recommended dietary fiber intake. ACIDS; Dietary fiber is widely recognized to have a beneficial role in overall health, but only at adequate levels (25 – 38 g/day for he althy adults). Wheat dextrin in particular is a soluble fiber that can easily be added to the diet and is widely used in the food industry. There is some debate about whether increased intake of soluble fibers leads to health benefits.This paper reviews the evidence regarding the physiological effects and potential health benefits of the addition of soluble dietary fibers, with specific reference to wheat KEY WORDS: SOLUBLE FIBER; WHEAT DEXTRIN; SHORT-CHAIN FATTY PHYSIOLOGICAL EFFECTS; HEALTH BENEFITS PREBIOTICS; Introduction Fiber, the indigestible part of plants such as cereals, fruits and vegetables (Table 1), has a fundamental role in the regulation of the digestive system and may help to prevent troublesome disorders such as constipation,1 – 3 diarrhea4 – 6 and irritable bowel syndrome. – 9 Fiber may also help to regulate the absorption of micronutrients,3,10,11 stabilize glucose12 – 14 and cholesterol levels,15 – 17 have a role in cardiovascu lar health18 – 20 and possibly help to prevent some forms of cancer. 21 – 23 *Current address: 90 Possum Way, New Providence, NJ 07974, USA. Many nutrition and healthcare professionals use the terms ‘soluble’ and ‘insoluble’ fibers for nutrition labeling. 24 – 27 Soluble fibers dissolve in water and usually form a gel.They are generally fermented by bacteria in the lower intestine, but they are indigestible and hence not absorbed into the bloodstream. 24,28 Soluble fibers also ferment to form short-chain fatty acids (SCFAs) such as butyrate, acetate and propionate (Table 2). 17,29 – 34 Short-chain fatty acids generate approximately 1 – 2 kcal/g of ingested fiber, so are used as an energy source by the intestinal Downloaded from imr. sagepub. com by guest on March 27, 2013 1 JL Slavin, V Savarino, A Paredes-Diaz et al.The health benefits of soluble fiber TABLE 1: Classification systems for fiber based on four different fibe r characteristics Dietary fibers Lignin (polyphenolic compound, in cell walls of woody plants and seeds) Cellulose (glucose polymer, in all plant cell walls) ? -Glucans (glucose polymers, in oats, barley) Hemicelluloses (polysaccharides, in plant cell walls) Pectins (viscous polysaccharides, in fruits and berries) Gums (viscous polysaccharides, in seeds; e. g. uar gum) Inulin and oligofructose (mixture of fructose chains, in plants such as onions) Resistant starch (starch in plant cell walls; inaccessible to human digestive enzymes; often found in bananas and legumes; may also be formed by food processing) Soluble fibers Wheat dextrin ? -Glucans Gums (e. g. guar gum, partially hydrolyzed guar gum) Mucilages (e. g. psyllium) Pectins Fructo-oligosaccharides Some hemicelluloses Sources: oat products, legumes (dry beans, peas, lentils) Fermentable fibers Wheat dextrin Pectins ? Glucans Guar gum Partially hydrolyzed guar gum Inulin and oligofructose Sources: oats, barley, fruits, vegetab les Viscous fibers Pectins ? -Glucans Some gums (e. g. guar gum) Mucilages (e. g. psyllium) Functional fibers Resistant dextrins (e. g. wheat dextrin) (indigestible polysaccharides formed when starch is heated and treated with enzymes; includes resistant maltodextrins) Psyllium (viscous mucilage, isolated from husks of psyllium seeds; also known as ispaghula husk) Chitin and chitosan (nondigestible carbohydrate from exoskeletons of crustaceans, e. . crabs, lobsters; deacetylation of chitin gives chitosan, a nondigestible glucosamine polymer) Fructo-oligosaccharides (FOS, short synthetic fructose) Polydextrose and polyols (synthetic polysaccharides used as bulking agents and sugar substitutes in foods) Insoluble fibers Cellulose Lignin Some pectins Some hemicelluloses Sources: wheat bran, some vegetables Non-fermentable fibers Cellulose Lignin Sources: cereal fibers rich in cellulose (e. g. wheat bran)Non-viscous fibers Cellulose Lignin Some hemicelluloses mucosa and are absorbed thr ough the colonic wall, where they are metabolized to produce energy or transported into the general circulation. 29 SCFAs also stimulate epithelial cell differentiation and proliferation. 29 Soluble fibers can also promote the growth of colonic Downloaded from imr. sagepub. com by guest on March 27, 2013 2 JL Slavin, V Savarino, A Paredes-Diaz et al. The health benefits of soluble fiberTABLE 2: Short-chain fatty acids (SCFA) produced by fermentable, soluble fiber17,29 – 34 Butyrate Widely recognized as the most significant acid in terms of its documented effects in the colon The preferred nutrient for the cells lining the colonic epithelium, in particular the distal colon and rectum The preferred substrate for colonocytes Positive effects on colonic mucosal growth, crypt cell proliferation, and early-response gene expression Acetate A fuel for skeletal and cardiac muscle, kidney and the brain A substrate for fatty acid and cholesterol synthesis Propionate Metabolized by the l iver Only SCFA that can be a major source of glucose (after metabolism, used for energy production) May play a role in cholesterol lowering bacterial flora (prebiotic effect). 35 – 37 Insoluble fibers, on the other and, do not dissolve in water, are generally less fermentable by colonic microflora and are indigestible,26 so pass through the intestines almost intact. Insoluble fibers have passive water-attracting properties that help to normalize large bowel function by acting like a sponge, pulling water into the stool and making it easier to pass. 38 They may also decelerate intestinal transit time, increase fecal weight through bulk action, delay glucose absorption and help to control and balance the pH in the intestines. 39,40 In the USA, the daily intake recommended by the American Dietetic Association (ADA) is 20 – 35 g fiber/day for healthy adults, and ‘age plus 5 g/day’ for children. 6 The World Health Organization (WHO) recommends > 25 g/day,41 whi le the British Nutrition Foundation recommends 12 – 24 g/day for healthy adults. 42 The Food and Nutrition Board of the Institute of Medicine established the Adequate Intake (AI) recommendation for fiber (both soluble and insoluble),24 which ranges from 19 to 38 g/day for children, depending on age, and from 25 to 38 g/day for healthy adults. The majority of people, however, do not seem to achieve the recommended daily intake of fiber, and women in general seem to consume lower amounts than men. 43,44 Wheat dextrin is a soluble fiber that has been widely used in the food industry because it has a low viscosity and so has a good consistency when added to water, beverages or soft food. 4 It is formed by heating wheat starch at high temperature, followed by enzymatic (amylase) treatment to form a resistant starch. 24,45 It qualifies as a dietary fiber because the non-digestible glucoside linkages (Fig. 1) lead to incomplete hydrolysation, so that only a small percentage of wheat dextrin is absorbed in the small intestine and the rest is slowly fermented in the large intestine. 3 This review aims to assess the evidence regarding the physiological effects and potential health benefits of supplementing the diet with soluble fibers, with specific reference to wheat dextrin. Data source The PubMed database (US National Library Downloaded from imr. sagepub. om by guest on March 27, 2013 3 JL Slavin, V Savarino, A Paredes-Diaz et al. The health benefits of soluble fiber CH2OH O OH O OH O CH2OH O OH HO O CH2 O OH O OH O OH CH2OH O OH O OH CH2OH O OH OH O OH OH O OH O OH HO 1:2 bond O O CH2OH O OH CH2OH O O OH OH O OH 1:3 bond CH2OH O OH O CH2 O OH O HO CH2OH O OH 1:6 bond O CH2 O H2 C O O CH2OH O CH2OH O OH O HO OH FIGURE 1: Chemical structure of wheat dextrin of Medicine, National Institutes of Health, Bethesda, MD, USA) was searched (to July 2007) using the terms ‘wheat dextrin’ and ‘soluble fiber’, and studies were selected based on wh ether they evaluated the physiological or clinical effects of soluble fibers.Although this non-systematic approach limits the review in that a quantitative analysis was not performed, it does allow a general and potentially useful overview of the effects of supplementation with soluble fibers. Physiological effects of soluble fibers FERMENTABILITY In vitro fermentation of wheat dextrin, inulin and partially hydrolysed guar gum (PHGG), and analysis of the resulting SCFA production over a 24-h period17 revealed that all three fibers demonstrated detectable fermentability. Acetate was the main SCFA produced by all fibers, accounting for about 50% of the total SCFA. Over 24 h, wheat dextrin produced substantially more total SCFA, propionate and butyrate than PHGG, which consistently showed lower fermentability at all time points (Fig. 2A – 2C).To reduce gas production (which can be socially undesirable and cause uncomfortable bloating), extensive fermentation at 24 h is desirable , while fast fermentation (e. g. high values at 4 h) may be undesirable. The total amount of SCFA produced by wheat dextrin at 4 h was just over half the amount produced by glucose Downloaded from imr. sagepub. com by guest on March 27, 2013 4 JL Slavin, V Savarino, A Paredes-Diaz et al. The health benefits of soluble fiber A Concentration ( µmol/ml) 120 100 80 60 40 20 0 B Concentration ( µmol/ml) 16 14 12 10 8 6 4 2 0 0 4 8 12 Time since start of fermentation (h) 24 0 4 8 12 Time since start of fermentation (h) 24 C Concentration ( µmol/ml) 45 40 35 30 25 20 15 10 5 0 0 4 8 12 Time since start of fermentation (h) 24 Wheat dextrin PHGG Inulin F97 GlucoseFIGURE 2: Analysis of short-chain fatty acid (SCFA) production following in vitro fermentation of wheat dextrin, partially hydrolysed guar gum (PHGG) inulin and glucose (positive control) over 24 h: (A) total SCFA production; (B) butyrate production; and (C) propionate production17 (positive control) and almost half the amount produced by inulin at the same time point (Fig. 2A). The fermentation of wheat dextrin, therefore, occurred slowly over 24 h, so its consumption was less likely to result in the gas production that can occur as a result of rapid fiber fermentation. composition towards a more beneficial distribution. 17,46 For example, the consumption of fructo-oligosaccharides led to an increase in fecal bifidobacteria,36,47,48 while ingestion of polydextrose resulted in a dosedependent decrease in bacteriodes and an increase in beneficial lactobacilli and bifidobacteria. 49 Administration of PHGG for 3 weeks increased the Lactobacillus spp count in feces. 0 Consumption of wheat dextrin led to a lower colonic pH, an increase in the fecal concentration of glucosidases, a statistically significant increase in the beneficial lactobacilli population and a statistically significant decrease in pathogenic Clostridium perfringens. 35 In another study, wheat dextrin increased the fecal concentration of glu cosidase;45,51 increased glucosidase activity is considered beneficial to the host and is linked to substrate fermentation leading to more SCFAs and lactic acid production. PREBIOTIC EFFECT The SCFAs produced by soluble fermentable fibers are moderately strong acids (pK 4. 8)29 and so they lower colonic pH. Lowering the pH in the large ntestine may support the growth of bifidobacteria and lactobacilli because they have a strong intrinsic resistance to acid and the lower pH may help to prevent the growth of pH-sensitive pathogenic bacteria such as clostridia. 30 Many soluble fermentable fibers have demonstrated a significant prebiotic effect and alter the intestinal microflora Downloaded from imr. sagepub. com by guest on March 27, 2013 5 JL Slavin, V Savarino, A Paredes-Diaz et al. The health benefits of soluble fiber EFFECT ON LAXATION AND REGULARITY The formation of SCFAs helps to improve laxation and regularity by increasing fecal bulk and weight and increasing the waterholding c apacity (and thus the hydration) of feces. 0,46 The increase in fecal bulk and weight results from the presence of fiber, the water that the fiber holds and the partial fermentation of the fiber, which increases the amount of bacteria in the feces. 52 Studies have confirmed that consumption of the soluble fibers inulin or oligofructose result in an increase in fecal weight,53 while inulin helped to reduce constipation2 and polydextrose increased fecal mass and sometimes stool frequency. 49,54 Consumption of psyllium significantly increased stool frequency and stool weight, increased stool water content, improved stool consistency, increased the frequency of bowel movements and reduced pain on defecation. 55 – 59 Wheat dextrin significantly increased dry fecal output by 70% (P < 0. 02) and wet fecal output by 45% (P < 0. 05) (Fig. 3). The increase in wet fecal output was due to increased dry matter output (38%) and increased water output (62%). IMPROVED NUTRIENT/MINERAL ABSORP TION Although dietary fibers are traditionally thought to decrease mineral absorption, animal models and human studies have demonstrated that soluble fermentable fibers appear to increase the absorption of certain minerals. 3,10,60 – 62 For example, soluble fibers may increase calcium absorption through the increased production of SCFAs, with an increase in the villus crypt height, number of epithelial cells per crypt, cecal vein flow and mucosal-to-serosal calcium fluxes and stimulation of the expression of calbindinD9K, thereby enhancing the active calcium transport route. 3 Soluble fibers may also increase the absorption of other minerals such as magnesium, zinc and iron. 3,10,11 Studies in rats showed that the absorption of calcium, magnesium and/or zinc may be enhanced by guar gum,64 inulin,10,65 oligofructose65 and PHGG. 11 In healthy men supplemented with either wheat dextrin or dextrose (100 g/day), ingestion of wheat dextrin significantly increased magnesium apparent absorption (50. 9%, P = 0. 001) and retention (30. 9 mg/day, P = 0. 024) and tended 80 P < 0. 02 70 60 Increase (%) 50 40 30 20 10 0 Wet fecal output FIGURE 3: Effect of wheat dextrin on fecal output3 Dry fecal output P < 0. 05 45% 70% Downloaded from imr. sagepub. om by guest on March 27, 2013 6 JL Slavin, V Savarino, A Paredes-Diaz et al. The health benefits of soluble fiber (not statistically significant) to increase calcium apparent absorption (37. 4%) and retention (111 mg/day) (Table 3). 3 prandial plasma glucose concentrations (–13 mg, P = 0. 04) and a significant reduction in the urinary excretion of glucose (P = 0. 008) compared with the low-fiber diet. 13 In fact, the effects of fiber on glucose concentrations are most evident in individuals with diabetes mellitus and it has been suggested that diabetics should consume 25 – 50 g/day of dietary fiber, with ? 55% of their calorie intake coming from carbohydrate. 4 To assess the effect of fiber on the risk for diabetes, more than 65 000 women (40 – 65 years of age) were followed for 6 years; it was found that dietary glycemic index and glycemic load were positively associated with the development of type 2 diabetes, and dietary fiber was inversely associated. 75 Beyond the effects of fiber on post-prandial glucose and insulin, fiber alters the responses and actions of the gut hormones gastric inhibitory peptide,76 glucagon-like peptide177 and cholecystokinin (CCK). 78 CCK is a peptide hormone and neurotransmitter that regulates gut motility, gall bladder contraction and pancreatic enzyme secretion and may mediate the post-prandial glycemic and insulinemic response to viscous fibers. A direct correlation has been reported between post-prandial CCK and subjective satiety scores following ingestion of foods with varying amounts of fiber. 79,80 DECREASED GLYCEMIA AND INSULINEMIAThrough the production of SCFAs, soluble fibers can stimulate pancreatic insulin release and affect liver con trol of glycogen breakdown,66,67 and so may be effective in decreasing blood glucose and insulin levels and improving glycemic and insulinemic indices. 68 Guar gum,69,70 inulin12 and dextrin71 were all found to improve postprandial glycemia. In healthy subjects, the glycemic index of wheat dextrin was 25% compared with dextrose and the insulin response with wheat dextrin was also low at 13% compared with dextrose. 14 Resistant dextrins led to reduced blood glucose concentrations and insulin secretion in rats after sucrose or maltose loading,72,73 reduced the post-prandial blood glucose concentrations in healthy men and women,13 and significantly reduced fasting blood glucose concentrations in type 2 diabetics. 6 In patients with type 2 diabetes given a diet high (25 g soluble plus 25 g insoluble fiber) or low (8 g soluble plus 16 g insoluble fiber) in total fiber, the high-fiber diet resulted in significantly lower pre- TABLE 3: Effect of wheat dextrin supplementation (100 g/day) on the absorption and retention of magnesium and calcium in healthy men3 Dextrose diet Calcium Apparent absorption, mean, mg/day (%) Retention, mean, mg/day Magnesium Apparent absorption, mean, mg/day (%) Retention, mean, mg/day 187 (28. 8) 39. 3 65 (30. 4) –0. 3 Wheat dextrin diet 269 (37. 4) 111 117 (50. 9) 30. 9 Statistical significance (P-value) 0. 093 0. 122 0. 001 0. 024 Downloaded from imr. sagepub. com by guest on March 27, 2013 7 JL Slavin, V Savarino, A Paredes-Diaz et al.The health benefits of soluble fiber REDUCED CHOLESTEROL LEVELS The SFCAs can suppress cholesterol synthesis by the liver and may reduce serum levels of low-density lipoprotein cholesterol (LDL-C) and triglycerides. 81 Soluble, viscous fibers are also thought to exert their hypocholesterolemic action by increasing fecal sterol excretion and stimulating hepatic bile acid synthesis. 82,83 In a metaanalysis of 67 controlled trials, consumption of 2 – 10 g/day of fiber (i. e. pectin, oat bran, gua r gum, psyllium) reduced total cholesterol by 4% and LDL-C by 7% compared with placebo. 15 No significant effect was observed on serum high-density lipoprotein cholesterol (HDL-C) and triacylglycerol concentrations.A greater reduction in serum total cholesterol and triacylglycerol concentrations was also noted in type 2 diabetics who consumed 60 g/day resistant dextrin compared with type 2 diabetics or healthy adults who consumed 30 g/day. 16 No difference was observed in the concentration of HDL-C. A diet high in total fiber (25 g soluble plus 25 g insoluble fiber) led to significantly reduced plasma total cholesterol (P = 0. 02), very-low-density lipoprotein cholesterol (VLDL-C) (P = 0. 01) and triglyceride (P = 0. 02) concentrations compared with a low-fiber diet, indicating that high fiber intake, especially soluble fiber, improves plasma lipid profile. 3 It has also been proposed that soluble fermentable fibers may lead to a reduction of cholesterol levels via the increased amo unts of propionate produced during their fermentation by the commensal bacteria, because propionate may inhibit cholesterol biosynthesis. 84 Fibers producing high amounts of SCFAs (particularly propionate), such as wheat dextrin, may help to sustain cholesterol levels within the normal range. 17 The cholesterol-lowering effects of wheat dextrin have been demonstrated in animal trials. 85 The findings suggest that its cholesterol-lowering effect is likely to be related to reduced cholesterol and bile salt absorption. However, not all soluble fibers are hypocholesterolemic agents; for example, oat bran has been shown to lower serum lipids while wheat bran did not. 81 IMMUNE FUNCTIONIt is possible that SCFAs help to improve immune function, as they stimulate the production of T helper cells, antibodies, leukocytes and splenocyte cytokines, all of which have a crucial role in immune protection. 86,87 In addition, SCFAs improve the barrier properties of the colonic mucosal layer, thus in hibiting inflammatory and adhesion irritants. 88 – 90 Lactic-acid-forming bacteria competitively inhibit and/or suppress the growth of pathogenic bacteria, and may have a positive influence on immune function. 91,92 WEIGHT REDUCTION Obesity is associated with increased energy intake and decreased consumption of fiberrich foods,93 while fiber intake is inversely associated with body weight and body fat. 94 – 97 Increasing daily fiber intake is an effective way of providing a satiating effect. 8 Dietary fiber also decreases gastric emptying and/or slows energy and nutrient absorption (a fiber-rich meal, which is also usually richer in micronutrients, is processed more slowly and nutrient absorption occurs over a greater period of time99), leading to lower post-prandial glucose and lipid levels. Furthermore, addition of dietary fiber to a low-calorie diet has been shown to lead to a significantly greater weight loss (8. 0 kg) compared with placebo (5. 8 kg). 100 When post -menopausal women consumed higher fiber diets, this was associated with significant weight loss. 101 A high Downloaded from imr. sagepub. com by guest on March 27, 2013 8 JL Slavin, V Savarino, A Paredes-Diaz et al. The health benefits of soluble fiber carbohydrate diet consumed ad libitum (i. e. elf-regulating), without energy restriction or change in energy intake, caused significant body weight and body fat losses in older men and women, with a significant decrease in thigh fat area (P = 0. 003). 102 A review of the effects of increased fiber (high-fiber foods or supplementation) on hunger, satiety, energy intake and body weight revealed that controlled energy intake with increased dietary fiber led to an increase in post-meal satiety and a decrease in subsequent hunger. 103 With ad libitum energy intake, increased dietary fiber (14 g/day) resulted in an average 10% decrease in energy intake and 1. 9 kg weight loss over 3. 8 months of intervention. The effects of increasing dieta ry fiber were reported to be greater in obese individuals.When evaluating the effects of 1 week of supplementation with soluble fiber (guar gum, 40 g/day) on hunger, satiety rating and energy intake, mean daily energy intake decreased significantly from 6. 7 to 5. 4 MJ, while hunger and satiety scores did not change. 104 Long-term (4 – 5 weeks) assessment of wheat dextrin (30 or 45 g/day) supplementation demonstrated a trend towards better weight maintenance; compared with baseline, body weight was increased in the control group supplemented with pure absorbable maltodextrin (+0. 87 kg; P = 0. 07), whereas body weight remained stable in the wheat dextrin-treated groups (+0. 0 kg). 35 sometimes stool frequency. 9,54 Psyllium significantly increased stool frequency and stool weight, increased stool water content, improved stool consistency, increased the frequency of bowel movements and reduced pain on defecation. 55 – 59 Administration of PHGG for 3 weeks increased the frequency of defecation (+0. 17 /day), increased fecal moisture (+5%) and decreased fecal pH. 50 Supplementation with PHGG also helped to reduce the use of laxatives (from an average of 2. 0 to 0. 2 doses/day). 105 Wheat dextrin (100 g/day) had a positive effect on fecal output in healthy men,3 with an average 45% increase in wet fecal weight (P < 0. 05) and 70% increase in dry fecal output (P < 0. 02) (Fig. 3). DIARRHEA Increased intake of soluble fiber may enhance recovery and improve stool consistency in diarrhea. ,5,106 – 109 Persistent diarrhea resolved in more children taking PHGG (84%) compared with those on the control diet (62%) (odds ratio 3. 12), while the duration of diarrhea was reduced and there was a trend towards reduction in daily stool weight that reached significance on days 4 – 7. 6 Compared with non-fiber control in children, PHGG significantly reduced the mean frequency of diarrhea (8. 8% versus 32. 0%; P = 0. 001), resulted in significantly fewer days with diarrhea per total feeding days (10. 8% versus 31. 5%; P < 0. 001) and led to a significantly lower mean diarrhea score (4. 8 versus 9. 4; P < 0. 001). 110 PHGG also suppressed diarrhea caused by the ingestion of high levels of non-digestible sugar substitutes. 11 In elderly patients with diarrhea, 4-week supplementation with soluble dietary fiber (7 g/day) significantly reduced the water content of feces (P < 0. 01), the fecal pH (P < 0. 05) and the frequency of daily bowel movements (P < 0. 05). 5 In addition, the fecal characteristics improved The role of soluble fiber in disease CONSTIPATION Increased daily fiber intake can ameliorate constipation. 40,49,52 – 59 Consumption of inulin or oligofructose was shown to increase fecal weight,53 inulin reduced constipation2 and polydextrose increased fecal mass and Downloaded from imr. sagepub. com by guest on March 27, 2013 9 JL Slavin, V Savarino, A Paredes-Diaz et al.The health benefits of soluble fiber and the tota l level of SCFAs increased significantly (P < 0. 05). 5 In patients with fecal incontinence, significantly fewer incontinent stools were observed in those who consumed dietary fiber (psyllium or gum arabic) than those receiving placebo. 4 Improvements in fecal incontinence or stool consistency did not appear to be related to unfermented dietary fiber. However, the effects of increased soluble fiber on diarrhea are inconclusive, as a meta-analysis of randomized, controlled trials found no evidence that dietary fiber was effective in treating diarrhea. 112 randomized studies would be useful to confirm the potentially beneficial effects of soluble fiber in IBS.DIVERTICULOSIS A diet low in fiber is thought to play a role in the pathogenesis of diverticular disease. 114 Increasing dietary fiber produces bulky, soft stools, facilitating defecation and reducing intracolonic pressure. 114 Increased fiber also helps to promote regular bowel function and is important in controlling and minimi zing diverticular disease. 115 – 117 Non-viscous soluble fiber is associated with a decreased risk of diverticular disease and an improvement of bowel pain. 115 In patients with diverticulosis, it is recommended that patients consume 20 – 35 g/day of fiber either through the diet or supplementation. 118 IRRITABLE BOWEL SYNDROMETreatment for irritable bowel syndrome (IBS) is aimed at alleviating symptoms. In patients with mild symptoms, fiber supplementation (particularly non-gelling soluble fibers) may help to relieve the severity and frequency of IBS symptoms, including abdominal pain, spasms or distension/tension, bowel dysfunction (e. g. fluctuation between constipation and diarrhea) and flatulence. 8,9,113 PHGG was better tolerated than wheat bran and more readily accepted by IBS patients, resulting in an improved quality of life during the treatment period. 113 PHGG also had a positive effect on evacuation frequency with a decrease in the frequency of IBS symptoms such as flatulence, abdominal tension and abdominal spasm. 13 Based on its physiological properties, wheat dextrin may also help to alleviate gastrointestinal symptoms associated with IBS through increased fecal output,3 enhanced prebiotic capabilities35,45 and significant but slow fermentation in the lower intestine, producing high concentrations of SCFAs but lower amounts of gas, which could be an important aspect in relieving the discomfort caused by IBS. 17 However, double-blind, HEMORRHOIDS A low-fiber diet is thought to contribute to the etiology of hemorrhoids. 119 Increasing the fiber content in the diet can have a beneficial effect in the treatment of symptomatic hemorrhoids. 120,121 A recent meta-analysis demonstrated that increased fiber reduced the risk of bleeding and decreased the rate of recurrence of hemorrhoids,120 while a Cochrane review found that the risk of not improving hemorrhoids and having persisting symptoms decreased by 53% with increased intake of fiber, with a significant reduction in bleeding. 121CARDIOVASCULAR DISEASE A number of studies have consistently found that a fiber-enriched diet (14 g fiber/1000 kcal energy) is associated with a significant reduction (16 – 33%) in the risk of coronary heart disease (CHD). 19,20,122 – 126 A pooled analysis of studies evaluating dietary fiber Downloaded from imr. sagepub. com by guest on March 27, 2013 10 JL Slavin, V Savarino, A Paredes-Diaz et al. The health benefits of soluble fiber intake in the USA and Europe indicated that each 10 g/day increase in total fiber intake was associated with a 14% decrease in the risk of coronary events (e. g. myocardial infarction), and a 24% decrease in deaths from CHD. 9 A study on the relationship between dietary fiber and risk of cardiovascular disease (CVD) among women over a 10-year period showed that the ageadjusted relative risk for major CVD was 0. 53 for women consuming the highest amount of fiber (22. 9 g/day) compared with thos e on the lowest fiber intake (11. 5 g/day). 125 Although few interventional studies have specifically assessed fiber intake on the risk of CVD, increased fiber has been shown to ameliorate some of the risk factors for CVD (e. g. high cholesterol levels, high blood pressure, obesity and diabetes). For example, fiber can significantly reduce blood cholesterol levels and so may be important to cardiovascular health. 5,16,81,127 Consuming foods rich in viscous soluble fibers has been shown to reduce blood levels of LDL-C by 10 – 15%, with an expected reduction in CVD events of 10 – 15%, and it has been stated that a diet including 5 – 10 g/day of viscous soluble fiber reduces CVD events and death independent of baseline risk. 18 Although the cholesterol-lowering effect of soluble (especially viscous) fibers probably contributes the most to its cardioprotective effects, other mechanisms are likely to play a role. As part of a lifestyle modification program, fiber can help to reduce blood pressure significantly,128 supporting research that found that highfiber intake was inversely associated with the risk of high blood pressure or hypertension. 129,130 Two intervention trials found that increased fiber intake resulted in significant reductions in blood pressure compared with placebo. 31,132 In an analysis of the association between nutrient intake and risk of stroke, dietary fiber was inversely correlated to the incidence of stroke, a relationship that was stronger in hypertensive than normotensive men. 133 Fiber is also effective at reducing the risk of diabetes and, thus, the risk of developing CVD, and can improve glycemic and insulinemic indices12,14,69 – 71 and decrease blood glucose and insulin levels. 13,16,72 Lowfiber, high-glycemic load diets are associated with higher serum triglyceride levels and lower HDL-C levels, which are risk factors for CVD. 134,135 Increased fiber consumption may also help control body weight and support a weight reduction program by helping to reduce obesity and, possibly, the associated risk of CVD. 94 – 104 Safety aspects of fiber supplementationReduced absorption of trace elements has traditionally been proposed as a potential negative effect of dietary fiber intake;136,137 however, it is unlikely that healthy adults who consume fiber in amounts within the recommended ranges will have problems with nutrient absorption. In fact, clinical data demonstrate that soluble fibers (e. g. inulin, fructo-oligosaccharides, wheat dextrin) may positively affect the absorption of certain minerals. 3,10,11,64,65 Fermentation of dietary fiber by anaerobic bacteria in the large intestine produces gas (including hydrogen, methane and carbon dioxide), which may be related to complaints of distention or flatulence, especially with high intakes of fiber. An increase in dietary fiber should also be accompanied by an increase in fluid intake, and fiber should be increased gradually to allow th e gastrointestinal tract time to adapt.Normal laxation may be achieved with relatively small amounts of dietary Downloaded from imr. sagepub. com by guest on March 27, 2013 11 JL Slavin, V Savarino, A Paredes-Diaz et al. The health benefits of soluble fiber fiber, and the smallest intake that results in normal laxation should be used. 138 Nevertheless, wheat dextrin has been shown to be well tolerated even up to the relatively high intake of 45 g/day. 51 Higher daily intakes (60 and 80 g) resulted in greater flatulence (P < 0. 05) and some bloating compared with placebo, but no intake resulted in diarrhea. fiber can have beneficial effects on constipation, diarrhea and the symptoms of IBS.Soluble fiber also has additional positive effects on cardiovascular health, leading to a significant risk reduction of CHD. Thus, this review of the physiological effects and subsequent health benefits of soluble fibers suggests that daily fiber supplementation could be beneficial in those individ uals who are at risk of inadequate fiber in their diet. Most servings of common foods contain between 1 and 3 g of dietary fiber so it may be difficult to consume the recommended amounts of fiber. Dietary assessment programs can estimate fiber intake for different population groups, allowing the identification of groups that have deficient fiber intake.At an individual level, fiber intake can be generally estimated based on servings of fruits, vegetables and whole grains having 2 g of dietary fiber per serving, and servings of legumes having 5 g of dietary fiber per serving. Values from high-fiber cereals or fiber supplements can be added to these totals. Wheat dextrin is one example of a soluble fiber supplement that has been shown to help normalize bowel function and is well tolerated, even at large intakes. It is slowly but extensively fermented, leading to a significantly high production of SCFAs, while its slow fermentation profile could help minimize the undesirable effects of gas production and flatulence. Wheat dextrin has also demonstrated enhanced prebiotic capabilities when used at an intake of 30 – 45 g/day.Based on its physiological properties, supplementation with wheat dextrin should be useful in individuals that need to complete their dietary intake with a fiber in order to achieve the daily recommended dietary levels of fiber. Conclusion Review of the evidence indicates that soluble, fermentable fibers, including wheat dextrin, have positive physiological effects that may help to improve bowel regularity and result in some health benefits. Soluble fibers are fermented in the large intestine, leading to the production of SCFAs that lower colonic pH and result in a significant prebiotic effect in which the growth of beneficial intestinal microflora (e. g. ifidobacteria, lactobacilli) and fecal glucosidase concentrations are increased, while the growth of pH-sensitive pathogenic bacteria (e. g. clostridia) is prevented or suppressed. In th is way, SCFAs could promote normal bowel regularity and may help to reduce serum glucose and cholesterol levels. SCFAs also positively influence the absorption and retention of certain micronutrients (e. g. calcium, magnesium, zinc), and may improve immune function by stimulating the production of immunoprotective factors (e. g. T helper cells, antibodies) and improving the barrier properties of the colonic mucosal layer. Soluble fibers that are slowly yet extensively fermented in the large intestine (e. g. heat dextrin) are tolerated more easily than those that ferment quickly, as the latter can produce larger amounts of gas in a shorter period of time, leading to bloating and flatulence. By improving digestive balance, regularity and hydration in the gut, soluble Downloaded from imr. sagepub. com by guest on March 27, 2013 12 JL Slavin, V Savarino, A Paredes-Diaz et al. The health benefits of soluble fiber Acknowledgments Editorial support was given by Deborah Nock, DPP-Cordell Lt d, Saxthorpe, UK. Funding for the review was provided by Novartis Consumer Health, Nyon, Switzerland. Conflicts of interest Alberto Paredes-Diaz and Grigorios Fotopoulos were Novartis Consumer Health, employees at the time of manuscript preparation.The other authors had no conflicts of interest to declare in relation to this article. †¢ Received for publication 8 September 2008 †¢ Accepted subject to revision 9 September 2008 †¢ Revised accepted 11 December 2008 Copyright  © 2009 Field House Publishing LLP References 1 Cummings JH: The effect of dietary fiber on fecal weight and composition. In: CRC Handbook of Dietary Fiber in Human Nutrition (Spiller GA, ed), 2nd edn. Boca Raton: CRC Press, 1993; pp 263 – 349. 2 Kleessen B, Sykura B, Zunft HJ, et al: Effects of inulin and lactose on fecal microflora, microbial activity, and bowel habit in elderly constipated persons. 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