The Theory Of Evolution Essays - Evolutionary Biology, Fossil

The Theory Of Evolution Essays - Evolutionary Biology, Fossil The Theory of Evolution The theory of evolution, as set forth by Charles Darwin in 1859, stated that all plant and animal life evolved over long periods of time from simple to more complicated forms through mutation and adaptation. He also taught that only the fittest of each species would survive. He further postulated that the first living cell evolved in a "warm warm little pond" and that it took billions of years for the present diversity of living things to evolve. At the time, it was thought that the few "missing links" in the fossil record would be soon filled.(Darwin, 1927 ). Today, however, there is today a considerable body of scientific evidence that refutes this entire theory. The findings of the last 50 years both deny the possibility of Darwin's theory and make a very good case for creationism. Creationism is the belief that all of life came into being suddenly, that it still exists in much the same form, and that the earth is much younger than Darwin thought. The Law of Biogen! esis states that life only comes from life. The Harvard University Nobel Prize winner (in physiology and medicine) George Wald wrote(1954) that "the reasonable view was to believe in spontaneous generation," (evolution). He said "the only alternative is to believe in a single, primary act of supernatural creation," and "there is no third position." He explains the impossible odds of spontaneous generation, and yet refuses to accept the alternative. Later, he attempted to find whether a single amino acid change in a hemoglobin mutation could be found that doesn't adversely affect the function of that hemoglobin. He was unable to find such an instance. He also explored the interactions between proteins, amino acids, and oxygen, with energy sources such as the earth's heat and the sun's radiation. He concluded that "the overwhelming tendency for chemical reactions to move in the direction opposite to that required for the evolution of life to be the most stubborn problem t! hat confronts us - the weakest link in our argument [for the origin of life]."(Wald,1967). Mendel's Laws explain most of the physical variations observed in living things. Genes, the genetic units of heredity, are merely reshuffled from one generation to another, but new genes are never formed. Different combinations create variations, but these variations are limited. Each cow, person, dog, etc. has variations, but the genetic units do not permit dog-people, or cow-dogs. Breeding experiments by competent biologists confirm that these boundaries exist.(Fix,1984). Since mutations are the only mechanism (according to Darwin) by which new genetic material becomes available, then mutations must have occurred regularly to have spawned all our present life forms, and further, mutation must consistently go from simple to complex to have gotten us out of the primordial ooze. However, many noted biologists, including C.P. Martin and Theodosius Dobzhansky (who mutated the fruit fly), consistently report that mutation does produce hereditary changes, but "invariably affec! t it (the organism) adversely."(Salisbury, 1969). All animals are born with complex organs (the human brain has over a hundred thousand billion electrical connections), and further, all animals are born with fully developed organs. If evolution were occurring, at some point people could expect to see a reptile whose leg was becoming a wing, but they never have. Darwin himself attempted to answer a question put to him by Harvard biology professor Asa Gray, regarding the eye, and whether the "inimitable contrivances for adjusting the focus to different distances, and for the correct ionospherical and chromatic aberration, could have been formed by natural selection. This seems..... absurd in the highest degree."(Darwin,1927). Genetic and molecular biologists can now measure the degree of similarity between most forms of life by examining the sequence of the components of a specific protein. Relationship is established by the number of changes required to convert a protein o! f one organism in to the corresponding protein of another - the fewer changes, the closer the relationship. This comparison can also be made using genetic material. There is NO evidence on the molecular level for evolution. Each of the many categories of organisms appear to be equally isolated. For example, by isolating one protein (cytochromec) from a snake and comparing it with

The Perils of Writing to Someone You Dont Know

The Perils of Writing to Someone You Dont Know The Perils of Writing to Someone You Dont Know The Perils of Writing to Someone You Dont Know By Maeve Maddox From a reader: I have a question.   I work for a large Canadian law firm and Ive noticed that many of the people here do not use Mr. or Ms., but rather address letters to John Smith.  Ã‚  Have I missed something?   Is this proper now? It may not be proper, but sometimes its safer. Addressing a letter in the old days was a fairly straightforward undertaking. If the name of the person was Michael Jones, youd say Dear Sir, or Dear Mr. Jones. If you were writing to a woman you could safely address her, married or unmarried, as Dear Madame. Back when the great goal of most women was to find Mr. Right, you could take a chance on starting a letter Dear Mrs. Jones even if you didnt know the recipients marital status. If she wasnt married, shed probably giggle at the error. In these more enlightened days, knowing how to begin a letter to a person you dont know is like walking through a minefield. Current letter-writing guidelines will tell you to address a man as Mr. Jones and a woman as Ms. Jones, but thats pretty simplistic, given the complications of feminism, reactions to feminism, multiculturalism, and creative child-naming. Ideally, the letter writer will check out the person being written to so as to know what form of address to use. But what if, despite your best efforts, you just dont know? How, for example, would you start a letter to Drew Barrymore, Daryl Hannah, or Michael Learned if you dont know all three are women? How are you supposed to figure out the gender of Jordan Dane, Alex Wright, Cory Black. Elliot Simpson, or Jamie Johnson if you know nothing about them but their names? In the age of the world-wide web, what about a name like Ananda Singh? A name ending in -a looks feminine to me, but in India, Ananda is a guys name. Say that you do know that the person youre writing to is a woman. Are you sure you want to address her as Ms. Jones? She may have a Ph.D. and prefer Dr. Jones. She may be a reactionary housewife and detest being called Ms. Or maybe shes single and proud of it and wants everyone to address her as Miss Jones. The people at your law firm are probably less concerned about proper usage than they are about avoiding ruffled feathers. Sometimes the best course of action is to play it safe by using the full name instead trying to juggle a courtesy title. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Business Writing category, check our popular posts, or choose a related post below:70 Idioms with Heart50 Idioms About Roads and PathsComma After Introductory Phrases

Management Essay Example | Topics and Well Written Essays - 750 words - 12

Management - Essay Example The project designers are assigned to work for eight hours per week (web based system) work to each designer (Smith and Mark). After some time one designer (Smith) has taken causal leave of 3 days. On this occasion the project manager assigned extra work to the second designer (Mark). So Mark was doing work for 12 hours on web based system and also carrying other projects as well. This situation made him too busy and tired. On the return of Smith the same operational hours were maintained for the Mark. He requested the project manger but manager took no action. The main reason behind this situation was the effective relationships of the Smith to the project manager. This produced some ill feeling in Mark for the Smith and project manager. The conflict among the Mark and Smith has taken more critical conditions. Now the project design is started to effect. This conflict caused delay in the completion of the design work of web based system. The developer team is waiting to develop the system, but no effective results till now have achieved. The main cause behind this situation is the conflicts between designers. This project requires extensive coordination but at the work both designers exchange some harsh words with each other. In this situation both sides know the main reason of the conflict. Smith knew that he was the person behind the over-burden on the Mark. Smith has not admitted that he is doing wrong. In this scenario Mark was under pressure from the management and project manager. He tried to perform well but with his fellow designer he could not be able to coordinate. In this way the over design duration was delayed. After that project manager called the designers to show the progress about the system design. At the moment the project manager has charged the Mark for the delay in the system design, and Smith was not asked regarding the development delay, because of the good terms with project manager. The situation went more

UPS part 3 Essay Example | Topics and Well Written Essays - 1000 words

UPS part 3 - Essay Example In the process of discussing the interrelationship between the identified throughput variables, whether or not they fit together or work towards the opposite ends will be discussed. Since the Burke-Litwin is a very complicated model, the analysis made in this study will be limited to transactional variables identified in the article entitled â€Å"A Casual Model of Organizational Performance and Change† by Burke and Litwin. Prior to conclusion, the main cause of each identified organizational problems will be discussed. Since UPS is a global company that provides the public with package delivery services to as much as 200 countries and territories all over the world (UPS), UPS management is composed of 11 major business positions which is headed by D. Scott Davis – the Chairman and CEO of the company (UPS b). The main task of UPS employees is to ensure that the company is able to deliver millions of packages around the world each day. Since UPS employees is highly dependent on the use of information and communication technology (ICT), each employee is expected to be knowledgeable with the use of modern communication equipments which includes UPS official website and the use of handheld Delivery Information Acquisition Devices (DIAD) (UPS c). Basically, the use of these electronic gadgets will make it easier on the part of each employee to manage, operate, and keep track of its daily business transactions such as the shipment and delivery schedules around the world on a real-time basis. Given that the main task of UPS employee is very complex in nature, managers are responsible in ensuring that each employee is highly motivated to deliver fast and reliable customer service at all times. To effectively develop management practices that will enable them to attain the organizational goal, managers should focus on developing a good

Essay --

The Physics of the Mangonel Catapult Catapults have been used for centuries by many groups of people, including the ancient Greeks, Romans, and Chinese. Catapults have had an assortment of purposes, but the most commonly purpose was to launch a projectile to destroy castles and soldiers. There were three main types of catapults; Ballista, Mangonel, and the Trebuchet. The mangonel was the most popular one. Different levels of torsion in the rope of the mangonel catapult decided how far a projectile was going to travel. Also the different objects that were used as projectiles and there masses also had a big role in the distance they would reach. If physics weren’t applied to building a catapult the catapult itself wouldn’t function correctly, therefore physics is what brings these machines to life. Though catapults are no longer used today in combat or any other use they still have a great history behind them. The mangonel catapult was the most well known one. The way this catapult functioned was by pulling back on a wooden stick that was connected to a wooden arm with a bucket, would pull that arm back. Pulling back on the wooden stick would cause the potential energy of the catapult to be stored in the torsion of the ropes of the wooden arm. When the wooden stick was let go the arm wood immediately return to its original position of 90 degrees where a wooden block would stop its impact and would then launch the projectile. When the arm reaches back to its original position it forms an arc with a radius equal to the arm length. Therefore the potential energy is transferred into rotational kinetic energy. Decreasing the torsion in the ropes of the wooden arm would make the projectile travel at a slower velocity. To calculate the t... ...ed. Another disadvantage is that the mangonel was not that accurate. The range was determined by the mass of the object and the strength of the catapult itself. Catapults were the weapon of the medieval times. The catapults had many purposes especially during war. Physics were applied to the building of a catapult without it the catapult wouldn’t function. The different levels of torsion would affect the catapults ability to launch a projectile higher into the sky, further, and give it a faster velocity. Also the different masses of objects used as the projectile were also accounted for those things. Though the mangonel catapult was a great catapult it also lacked some abilities, such as having poor accuracy and it wouldn’t work in wet conditions or cold weather like in the rain. Overall the mangonel is a great catapult and always has been over the past centuries.

Preventing Obesity to Prevent Diabetes Essay

Diabetes is an ailment in which the human body refuses to produce or make appropriate use of insulin. Insulin happens to be a hormone which is required to convert starches, sugar and other foods into energy for everyday life. Although the causes of diabetes remain as a mystery, many medical experts believe that genetics and poor lifestyle choices – e g. lack of exercise – that result in obesity may very well be responsible for the disease (â€Å"Diabetes†). Of course, when insulin is prevented from converting starches, sugar and other foods into energy, metaphorically speaking, it is as though a person has lost a leg or an arm, especially when the individual is just a child. At a growing stage, children’s bodies should be effectively converting foods into energy, so that they can develop into mentally and physically healthy people – the future of our world. Besides, all kinds of preventable abnormalities are equally harmful. Imagine the effect on a child’s self-esteem, not only when he or she is called ‘fat and clumsy’ by his or her slim and fit classmates, but also when he or she must undergo treatment for diabetes at the time that his or her classmates are at play. The International Obesity TaskForce reports that almost 1. 7 billion people around the world â€Å"are at a heightened risk of weight-related, non-communicable diseases such as type 2 diabetes (â€Å"Diabetes and Obesity†). Moreover, the International Diabetes Federation has predicted that by 2025, the number of people with diabetes, including children, may reach at least 333 million (â€Å"Diabetes and Obesity†)! Insulin is responsible for taking the sugar from the human blood to the human cells. If glucose starts to build up in the blood rather than going to the cells, two problems may result: (1) The cells could become energy-starved; and (2) Eventually the high blood glucose level may start to hurt the eyes, nerves, kidneys or heart (â€Å"Diabetes†). Unsurprisingly, such suffering is very difficult for a child to bear. Fortunately, however, individuals that are suffering from diabetes may seek their doctors’ advice apart from making changes in their lifestyles to prevent these problems. If the person suffering from diabetes is overweight, the doctor may recommend weight loss. Effective weight reduction plans, in addition to â€Å"increased physical activity,† may help the diabetic person to a large extent (â€Å"Diabetes and Lifestyle†). According to a report published by the World Health Organization, â€Å"more than 22 million children under five years old are obese or overweight, and more than 17 million of them are in developing countries. Each of these children is at increased risk of developing type 2 diabetes†¦ (â€Å"Fight Childhood Obesity to Help Prevent Diabetes†). † Obviously, this is expert opinion on the relationship between obesity and diabetes. If a child is watching television or playing video games most of the time and becoming obese, his or her parents should be sending the child to run around with his or her friends in a park instead. Seeing that children in developing countries are also suffering from obesity, and therefore the risk of developing diabetes, it is clear that obesity may be inherited to boot. Children of poor families do not get enough to eat in any case. What is more, if and when they develop diabetes, their families cannot afford to get them treated. But, even if a child’s parents can afford to get him or her treated, medical treatment is more expensive than prevention of obesity. The California Department of Education reports that â€Å"[o]verweight children and youths are more prone to developing serious health problems now and in the future (â€Å"Final Task Force Recommendations†). After all, this is the age of McDonald’s and Burger King, which makes it even more important to prevent obesity in children as well as adults. It is easy to buy a hamburger from Wendy’s on the way back from school – both for the mom and the child. However, the cost of sickness is much higher than the convenience of a drive through fast food restaurant. Everybody wants children to flourish and help the nation and the entire world to prosper as well. Besides, all health experts are of one voice as far as the relationship between diabetes and obesity is concerned. The fact that most people diagnosed with diabetes are obese, be they adults or children – makes it necessary to check obesity. It has been timelessly stated: we are what we eat. Therefore, it is best for both children and adults to be nourished by healthy foods. Fruits and vegetables are always considered superior to fats and hamburgers. Exercise and keeping fit are always better than excess weight. Nobody has ever doubted that human beings love to eat good food. At the same time, however, it must be borne in mind that obesity may turn into a severe disorder. It may negatively affect the individual’s mental state, by lowering his or her self-esteem. What is more, a child that is fed on McDonald’s five times a week may eventually become incapable of studying in school if diabetes ends up hurting his or her eyes. Mothers too may be rendered helpless as far as housework is concerned. Undoubtedly, therefore, in the case of diabetes, it must be timelessly stated: obesity prevention is better than cure.

The Rise in the Number of Girls Suffering from Anorexia...

Statistics are often a bit of a hazard, but when it comes to those concerning an illness characterised by discretion, dishonour and deception, even that is an understatement. Statistics show a 60% rise in the number of young girls admitted to hospital with anorexia in England and disturbingly still rising. The mythology encompassing anorexia is a self-inflicted condition brought on by narcissism. Narcissism is a misinterpretation of what is, in reality, a life threatening disease whose cause remains obscure, whose treatment is inaccurate and whose classification is random. Anorexia kills more of its sufferers than any other illness. And it is vital we feed our society with greater knowledge of this critical disease to ensure that it doesn’t eat away the security and sustainability of our future generations. Anorexia nervosa is an illness which predominately attacks teenage girls or women in their early adult years. When they look into a mirror, they don’t see athin body; they see a revoltingly overweight body. Anorexia is a mental illness and must be treated. It is also a physical illness, an illness similar to starvation. Anorexic young women may feel dizzy and tired constantly, may lack emotional warmth, develop a gloomy personality, the everlasting symptoms of this bizarre suffering are never-ending. Though its symptoms are endless, but its cause? Veiled.Some claim that the media has a vigorous affluence on society, other prevail that it is down to free will of theShow MoreRelatedAnorexia Nervosa And Its Effects On Society1514 Words   |  7 PagesMillions of people are currently suffering from Anorexia. Anorexia Nervosa is an eating disorder in which people suffering drastically restrict food intake due to an intense fear of gaining weight and a distorted body image. There h as been an unfortunate increase in people suffering from Anorexia Nervosa over the past several decades. 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This is very different from anorexia but they both have similar reasoning behind themRead MoreThe Influence Of Media Reporting On Society s Perception Of Beauty1730 Words   |  7 PagesIn the words of Emma Stone, â€Å"you’re a human being, you live once and life is wonderful, so eat the damn red velvet cupcake† ( 2010, page number). It is evident that over the last decade the media has created an image that is unrealistic and unattainable for teenage girls. As such, based upon a macro perspective, the societal roles, status and expectations of young women have been impacted negatively. This paper will analyze how the combination of media reporting, socioeconomics and socioculturalRead MoreMedia’s Blow on Anorexia1054 Words   |  5 PagesMedia’s Blow on Anorexia About one in 200 persons in the United States will develop anorexia nervosa at some time. Ninety Percent are women (Anorexia Nervosa—Part 1 1). Anorexia is defined as an emotional disorder characterized by refusing to diet or eat. This is targeting young girls all across the world! This calamity is struck by something every person loves, social media. The media realm needs to be ceased from the websites that support dieting, celebrities displaying perfectionist bodiesRead MoreAnorexia Nervosa And Binge Eating Disorder1626 Words   |  7 PagesDid you know that four in ten girls aged 14 and 15 skip breakfast daily? Teenagers and even adults all over the world are suffering with various eating disorders very commonly due to the thin models they see on billboards, magazine covers, social media, and everywhere else they go. The common eating disorders include anorexia nervosa, bulimia nervosa and binge eating disorder the earliest case of an eating disorder can be traced to pre historic times, and these disorders can have extremely negativeRead MoreThe Problem Of Eating Disorders Essay1626 Words   |  7 Pagesdisorder, causing the affected person to eat far too much and experience pain, discomfort, and irritable bowel symptoms, bulimia which causes the affected person to purge their food through vomiting, and one of the most common eating disorders -- anorexia nervosa. (Eating Disorders, 2008) Many of these disorders can be treated in multiple ways, the most common way is through counselling with a social worker, the social worker helps develop a treatment plan for the client and aids them in their recoveryRead MoreTeenagers Are Suffering With Multiple Eating Disorders1484 Words   |  6 PagesIn America, many teenagers are suffering with multiple eating disorders. Once they begin to monitor what to eat, they tend to perform many exercise routines followed by the lack of not eating, these situations should be alarming to the parent that something is not right. Thus, what can we do to resolve this situation among teens? Parents should first become informed towards the issue which their child is facing and take action immediately to save their child from the dangerous activities. It is importantRead MoreEssay on Body Image2139 Words   |  9 Pagesis a symptom of anorexia nervosa (Kristen Harrison, 1997). Therefore, the commendation of such look and shape commercializes unhealthy body image and procreates eating disorders. Unfortunately, at present the commercialism of a perfect body is encountered by almost everyone on everyday basis. The public is bombarded daily with images of glamorously thin women in commercials, on billboards, in movies in magazines and etc?According to Melanie Katzman, a consultant psychologist from New York, the mediaRead MoreEssay about Anorexia Nervosa in Males: An Often Overlooked Minority1831 Words   |  8 PagesFor many the term â€Å"Anorexia† conjures up memories of bone thin, weight obsess ed teenage girls, models, and actresses. However, as the spotlight has been shined on Anorexia bringing this secretive and quiet disorder to a wider public perception, many still suffer in silence: either too ashamed to seek treatment, or because of an improper diagnosis. Over three million men each year are affected by Anorexia. In spite of this, men are less likely to be diagnosed, and the disorder is often overlookedRead MoreHealth And Social Work : The Aid For Anorexia Nervosa Essay2343 Words   |  10 PagesHealth and Social Work in Canada: Aid For Anorexia Nervosa Clients Eating disorders are diseases in which people have an unhealthy relationship with their food, and negative image reflecting how their body looks, such as, the fear of gaining weight. This type of body dysmorphia can lead to damaging eating habits, such as; starvation, purging, and even binging. Furthermore, there are numerous eating disorders recognized today, the most common being binge disorder, causing the affected person to eat