The Discover of Dietary Vitamins

The Discover of Dietary Vitamins Vitamins are a 20th-century discovery. While people always felt properties of some foods were important to health before the opening decades of the 1900s, it wasnt until after the turn of the century that these factors were identified and synthesized. Discovery of Vitamins as a Factor In 1905, an Englishmen named William Fletcher became the first scientist to determine whether the removal of special factors, known as vitamins, from food would lead to diseases. Doctor Fletcher made the discovery while researching the causes of the disease Beriberi. Eating unpolished rice, it seemed, prevented Beriberi while eating polished rice did not.  Hence, Fletcher suspected that there were special nutrients contained in the husk of the rice removed during the polishing process that played a role.   In 1906, English biochemist Sir Frederick Gowland Hopkins also found that certain food factors (proteins, carbohydrates, fats, and minerals) were important to growth in the human body: his work led to his receiving (together with Christiaan Eijkman) the 1929 Nobel Prize in Physiology or Medicine. In 1912, Polish scientist Cashmir Funk named the special nutritional parts of food a vitamine after vita, which meant life,  and amine from compounds  found in the thiamine he isolated from rice husks. Vitamine was later shortened to vitamin. Together, Hopkins and Funk formulated the vitamin hypothesis of deficiency disease, which asserts that a lack of vitamins could make you sick. Specific Vitamin Discoveries Throughout the 20th century, scientists were able to isolate and identify the various vitamins found in food. Here is a short history of some of the more popular vitamins. Vitamin A (a group of fat-soluble retinoids, including retinol, retinal, and retinyl esters)  - Elmer V. McCollum and Marguerite Davis discovered Vitamin A around 1912 to 1914. In 1913, Yale researchers Thomas Osborne and Lafayette Mendel discovered that butter contained a fat-soluble nutrient soon known as vitamin A. Vitamin A was first synthesized in 1947.  Vitamin B (known as biotin, a water-soluble vitamin that helps the body convert carbohydrates, fats, and proteins into energy)- Elmer V. McCollum also discovered Vitamin B sometime around 1915–1916.Vitamin B1 (also known as thiamine, a water-soluble  B vitamin that plays a critical role in energy metabolism) - Casimir Funk discovered Vitamin B1 (thiamine) in 1912.Vitamin B2 (also known as riboflavin, an important role in energy production, cellular function, and metabolism)- D. T. Smith, E. G. Hendrick discovered B2 in 1926. Max Tishler invented methods for synthesizing the essential vitamin B2.Niacin- American Co nrad Elvehjem discovered Niacin in 1937. Folic acid- Lucy Wills  discovered Folic acid in  1933.Vitamin B6 (six compounds which are extremely versatile and primarily work on protein metabolism)- Paul Gyorgy discovered Vitamin B6 in 1934.Vitamin C (ascorbic acid, required for the biosynthesis of collagen)- In 1747, Scottish naval surgeon James Lind discovered that a nutrient in citrus foods prevented scurvy.  It was re-discovered and identified by Norwegian researchers  A. Hoist and T. Froelich in 1912. In 1935, Vitamin C became the first vitamin to be artificially synthesized. The process was invented by Dr. Tadeusz Reichstein of the Swiss Institute of Technology in Zurich.Vitamin D (promotes calcium absorption in the gut and enable bone mineralization)- In 1922, Edward Mellanby discovered Vitamin D while researching a disease called rickets.  Vitamin E (important anti-oxidant)- In 1922, University of California researchers Herbert Evans and Katherine Bishop discovered Vitamin E in green leafy vegetables.   Coenzyme Q10 In a report called â€Å"Coenzyme Q10 - The Energizing Antioxidant,† issued by Kyowa Hakko USA, a physician named Dr. Erika Schwartz MD wrote: Coenzyme Q10 was discovered by Dr. Frederick Crane, a plant physiologist at the University of Wisconsin Enzyme Institute, in 1957. Utilizing specialized fermentation technology developed by Japanese manufacturers, cost-effective production of CoQ10 began in the mid-1960s. To this day, fermentation remains the dominant production method around the globe. In 1958, Dr. D.E. Wolf, working under Dr. Karl Folkers (Folkers leading a team of researchers at Merck Laboratories), first described the chemical structure of coenzyme Q10. Dr. Folkers later received the 1986 Priestly Medal from the American Chemical Society for his research on coenzyme Q10. Source Vitamin and Mineral Supplement Fact Sheets. National Institutes of Health: Office of Dietary Supplements

What is the relationship between transcendentalism and individualism Coursework

What is the relationship between transcendentalism and individualism Between transcendentalism and social reform Between transcendentalism and the middle class - Coursework Example People do not need organized society and its various institutions because the self-sufficient person is better off being alone and from this select group of individuals who believe in self-reliance can a true community of men be formed. It is an ideal achievable only if all people try to be self-reliant and form their own minds about matters that affect them the most. This philosophical and cultural movement of transcendentalism has its drawbacks, however. An individualistic attitude can harm society because if all people will become self-reliant, there is no need for a democratic government (Newfield 17). Organized society will cease to exist, including all forms of governance which any civilized society needs for a group of people to survive and live peacefully. Transcendetalism can have an adverse effect as people will strive for personal independence regardless of the needs of a society, to include compliance with social rules and governmental regulations. Rampant and rabid individualism can harm society in the long term (Hankins 38) to the detriment of an organized central authority and the solidarity and spirit of communalism will disappear. But individualism can inspire people to do good too by not waiting for government to do something but just do

The Microsofts Company Culture Essay Example | Topics and Well Written Essays - 1500 words

The Microsofts Company Culture - Essay Example Business is a monopoly of strategies to start with. In a world advancing with globalization and changing with progressing innovation, constant evaluation and re-designing of policies is a necessity for business survival. Organizational behavior, strategies, decisions, environment and workforce determine the organizational success and its promotion towards progress and advancement. It is thus a necessity to look into the policies of successful companies, to render, adhere and change what’s not working to what’s the best. One such company which has achieved to do this is an American public multinational corporation- The Microsoft Corporation. Microsoft Corporation has efficiently articulated its policies and strategies to remain sustainable in their top position, for almost a decade. With offices in more than 60 countries, Microsoft earns more than US$16.5 billion in operating income with approximately 71,170 employees (Microsoft Corporation Annual Report 2006).Since Microsoft Corporation is an American public multinational corporation, the public is also an asset to it. Microsoft’s Windows operating system is home to over 95% of the world computers (Johnson, Scholes and Whittington, 2008). Microsoft has a global reach in terms of software, operating systems, internet portals etc., all being used by over millions of not only individuals, but by millions of organization and businesses hub. Some of the most widely used and innovative Microsoft products are Windows, Office applications and Microsoft Windows. Microsoft has also also has stepped inside the cable television market with MSNBC as well as MSN Internet Portal. Â  

Components of Consumer Information Processing Case Study

Components of Consumer Information Processing - Case Study Example As a consumer, I consider myself a more of utilitarian than hedonic. This mean whenever I am shopping I always aim at maximizing utility. I view shopping as a task which I have to program first, then conduct a proper search in order to get the a product or a service with desired specifications to satisfy my need. I normally seek functional, instrumental, and practical benefits. A recent Study on why people go shopping has revealed that shopping experience can provide to the consumer with a combination of both utilitarian value and hedonic value. Utilitarian value is task oriented and cognitive in nature. On the other hand, hedonic value is tied to the emotional aspect of the shopping experience. A consumer perceive a utilitarian value if they acquire they acquire product that necessitated their shopping trip, while at the same time perceive hedonic value if they enjoyment of the shopping experience. For these reason although I put more emphasis on maximizing a product utility, I also enjoy a shopping experience that offer both utilitarian and hedonic value satisfaction. The components of the consumer information processing are important to the business in various aspects. First, it is important to note that the volume of sales as well as the profitability of the business depends on the consumer buying behavior. These components include the exposure stages, retention, yielding, comprehension, and the attention. The exposure component triggers the stimuli of the consumer to acquire the product. The information processing is important to the business in that attracts the attention of many consumers hence the customer base of the organization is bound to increase significantly (Roy and Ian 372). It facilitates the provision of the necessary information to the consumers and thus, helps the consumer in making decision to buy the product. It provides the clear image of the product whilst providing the consumer with information regarding

Code of Sexual Ethics Essay Example for Free

Code of Sexual Ethics Essay The value of a code of sexual ethics is one that is extremely important to hold close to ones mind and soul. Human sexuality is a broad topic in society and everyone has different views on what is important to them as individuals. My view of human sexuality has been shaped with many influences. Growing up, my Mother always taught me to be comfortable with my sexuality, and I watched my older siblings show the same confidence that my Mother was teaching me. She taught me to respect others and myself equally, no matter what label of sexuality that they hold. Basically; â€Å"Treat others how you want to be treated†. I hope to teach my children in the same effective way that my Mother taught my siblings and I. I feel as though having this code of sexual ethics will act as a backbone to the teachings of human sexuality for my children and the next generation. I plan for them to follow this code faithfully, as I will continue to do so throughout the remaining course of my life. CODE To my Children; I have put together a code of sexual ethics that will help instruct and guide you in the right direction throughout the course of your lives. â€Å"Part of discovering yourself sexually usually involves developing your personal set of morals and values as they relate to sexual issues†(Hock, 6). This code of sexual ethics should not be viewed soley as disciplinary, the purpose is to provide guidance throughout the course of your lives. The first principle that is essential to your sexual health and well-being is to always use protection. This is important because Be faithful to your partner Wait until you are ready, do not let anyone pressure you/don’t take advantage Make sure it’s the right person to share the experience with â€Å"Most people agree that parents are the most appropriate source of [sexual] knowledge† (Hock, 15). THE PAST My parents have taught me to always be respectful to women. I would never force myself on any woman. They taught me to practice respect with all people, and not to judge others based on their sexuality, even if they may be different from me. I was also taught to never hold back my feelings, and to follow my heart. Yes, in some situations throughout my life, this has lead to heart break. However, in others, it has brought me to experiencing the most amazing feeling in the world; love. I have been known to wear my heart on my sleeve, however, this put forth both benefits and harms on my feelings throughout my life. Sex on the other hand, has always been a bit more personal. My parents did not exclusively teach me about sex. They taught me about love and relationships in general. Although, the topic of sex did arise, it was never the main focus of their teachings. My mother and I have a very comfortable relationship, we are usually able to talk about anything. She has taught me almost everything I need to know about how to make relationships work; along with the respectful ways to treat the woman I love. We did not start having these discussions until I was in high school. I wish that we would have talked about sexual values and behaviors while I was in middle school because that is when I started seriously liking girls. It all started at a pretty young age. I was always able to speak through my heart, even though I tend to be extremely shy. When it comes to feelings of my heart, I need to let it out. My mom and my peers have always been helpful to me in developing my awareness and understanding about my sexuality. I have never struggled with my sexuality personally, however, I have always cared greatly about the way I look. Some people call me â€Å"metro sexual†. This all started when I was very young. Because I wore nice clothes, and did my hair everyday, some people would mistake me for homosexual. This did not bother me though because I have always been comfortable with my sexuality because I know that I am not homosexual. I just like to look good, which in turn helps me feel good about myself. On the other hand, I think that the media may have played an unhelpful part in raising awareness and understanding about sexuality. Although some programs out there do a great job of explaining these concepts, most of the ones that I was exposed to, did not. Communication about sexuality is definitely welcomed when talking with my mother. However, it is almost fully unwelcomed when talking with my father. We just never talked about that sort of stuff. With my Dad and I, it has always been all about sports. Although, I am comfortable talking about my sexuality in general with all of my family members, I am not be comfortable going into detail on my sexual experiences. I think this is the case because my sexual experiences are a private, intimate matter. My family has no business in knowing about it unless something negative comes out of it, which it never has. THE PRESENT AND CONCLUSION The process of writing my code of sexual ethics was interesting. It allowed me to really look back on my past actions and reflect upon what I did wrong and what I did right. It is also interesting to think that I may be sharing this code with my children in the future. That fact in itself shaped the way I wrote my code of ethics because I really had to think about what I would approve of as a parent and how I would want my child to behave sexually. It was a hard process, but I learned a lot about myself along the way. I think that writing a code of sexual ethics was definitely useful and helpful in clarifying my sexual philosophy. This is because of the major thought process that was required to put into the creation of the code. I had to dig deep into my families, and my own beliefs and values when addressing sexual behavior, which in turn clarified some hazy thoughts in my mind as well. I currently live by most of the principles I wrote in my code of ethics. My parents raised me well and taught me to respect myself and others, and to also take responsibility for your actions. If there are any of the guidelines of my code that I did not live by in the past, than I will change my ways to live by them now. I can comfortably communicate with friends and intimate partners depending on the content of the subject. I have learned a great amount of information throughout this course. This information has shaped the way I formed my code of sexual ethics. We learned how to respect ourselves and love ourselves before anyone else and that was the basis of my code of sexual ethics. I think my code is pretty solid. I do not think it will need much revision in the future. However, it may need some additions. It may need additions because over the course of time my idea of ethics may change, as I grow older. When I am married the code may be a bit different for me, however I would want to teach my children this exact code of sexual ethics.

Guillain-Barre Syndrome Essay -- Health Medical Medicine Essays

Guillain-Barre Syndrome Most people do not expect to become paralyzed during the course of their lives. Barring injury to the nervous system or debilitating disease, one does not expect to lose motor function. In spite of these expectations, people of all races, sexes, ages, and classes can be afflicted with a debilitating syndrome that can lead to difficulty in walking or even to temporary paralysis in the most severe cases. This syndrome is known commonly as Guillain-Barre Syndrome, or GBS. GBS is an inflammatory disorder of the peripheral nerves. When the syndrome occurs, the body's peripheral nerves become inflamed and cease to work due to an unknown cause. (1) (3) Around 50% of the cases of GBS appear after a bacterial or viral infection. (1) The syndrome can also appear after surgery or vaccination. GBS can appear hours or days after these incidences or can even take up to three or four weeks to appear. (4) Some theories propose that GBS is caused by a mechanism of the autoimmune system that prompts antibodies and white blood cells to attack the covering and insulation of the nerve cells, which leads to abnormal sensation. GBS is considered a syndrome rather than a disease, because its description is based on a set of symptoms reported by the patient to her doctor. (5) GBS is also known as acute inflammatory demylinating polyneuropathy and Landry's ascending paralysis after Jean B. O. Landry, a French physician who described a disorder that "paralyzed the legs, arms, neck, and breathing muscles of the chest." (4) (1) GBS was named after French physicians Georges Guillain and Jean Alexander Barre who, along with fellow physician Andre Stohl, described the differences of the spinal fluid of those who suffered f... ...undation International, based in Wynnewood, PA. http://www.guillain-barre.com/overview.html 2) Kolata, Gina. Flu: The Story of the Great Influenza Pandemic of 1918 and the Search for the Virus That Caused It. Simon & Schuster: New York. Pgs. 167-185. 3) Guillain-Barrà © Support Group, The homepage for the Guillain-Barre Syndrome Support Group based in the United Kingdom. The organization disseminates information to sufferers of the syndrome and their family and friends. http://www.gbs.org.uk/index2.shtml 4) NINDS Guillain-Barre Information Page, National Institute of Neurological Disorders and Stroke information page on GBS. http://www.ninds.nih.gov/disorders/gbs/gbs.htm 5) GBS - An Overview For The Layperson, An overview of GBS written by Dr. Joel S. Steinberg, a neurologist that once suffered from GBS. http://members.ozemail.com.au/~guillain/gbs.htm

Beowulf’s Confidence Essay

Beowulf was written in the earliest age of English poetry. Back in the Anglo-Saxon times, in order to make a name for themselves, warriors had to fight in battles. They believe that you should fight until death with absolutely no retreating. Beowulf, a young Geatish warrior, comes to Hrothgar’s kingdom to return a favor to him. While Beowulf is there, he fights in two battles; the battle with Grendel and the battle with Grendel’s mother. Much later in the poem, he fights in his third battle, defeating the dragon harming his country. Beowulf’s confidence decreases as each battle occurs. In Beowulf’s battle with Grendel, Beowulf is extremely confident. This confidence is very apparent in his attitude. When he first comes to Hrothgar’s court, he tells him that he had â€Å"firm resolve when [he] set to sea† (Beowulf 22). This confidence is also apparent in Beowulf’s preparation. He chooses to abandon his armor and weapons in the fight. He very dramatically â€Å"[strips] from his shoulders the byrny of steel, / [doffs] helmet from head† (23). Beowulf has a huge advantage on Grendel because he is very strong. He is so strong that the people of his country say that his handgrip is equivalent to that of â€Å"thirty men’s strength† (15). Beowulf’s confidence is extremely evident as he prepares to fight Grendel. Beowulf prepares differently in the fight with Grendel’s mother because he is not as confident as he was in the first battle. Beowulf’s attitude while talking to Hrothgar is less confident due to the fact he is not sure of how the battle will end. He has Hrothgar pledge to â€Å"Protect [his] kinsmen, [his] trusty comrades, / If battle take [him]† (48). Beowulf also shows his confidence lessening by deciding to use armor and weapons in the battle. To prepare for the battle, he â€Å"[dons] his armor† (47) with â€Å"A gleaming helmet† (47) and â€Å"the sword the herald of Hrothgar loaned† (47). Beowulf is still somewhat strong compared to his last battle. When Grendel’s mother â€Å"[grapples] and [grasps] the warrior / With horror grip† (48, 49) and tries to â€Å"tear through the tempered mail / With her savage fingers† (49), she cannot harm him. Beowulf’s confidence is not as apparent in the second battle with Grendel’s mother. Beowulf’s confidence continues to decrease as the battle with the dragon occurs. Beowulf’s attitude was extremely negative. His heart â€Å"[is] heavy with anguish† (75). Beowulf’s confidence level is so low that he has special armor prepared for him. The king â€Å"bade work him of iron a wondrous shield, / Knowing full well that wood could not serve him / Nor linden defend him† (75) against the dragon. Beowulf’s strength has drastically changed since the beginning of the first battle. Rather than having the grip of â€Å"thirty men’s strength† (15), Beowulf â€Å"[trusts] the strength / Of his single might† (82). Beowulf shows little to no confidence in the battle with the dragon. Beowulf’s confidence lessens as each battle approaches. He goes from being a great, bold warrior with much confidence, to an old, fragile king with very little confidence. Beowulf comes to a point of weakness where he can no longer defend for himself and needs help from fellow warriors, like Wiglef. His confidence adjusted so extremely that he goes into the last battle expecting a not so good outcome. At the end of the battle with the dragon, Beowulf passes away, with his weakness and little confidence being a huge factor.