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The Evolution Of The Eye

... designs that are either entirely useless or much worse than the original design (Nilsson, 1989). With this in mind, we can see how species would evolve their respective eye designs individually; to improve their own eye design rather than evolving their eyes into a design, such as the simple camera-type eye, which is superior to all other eyes. Introduction In order to understand about , we must first have an understanding of its structure and function. On a more basic level, we must also have an understanding of basic optical principl ...

Number of words: 1717 | Number of pages: 7

Biofeedback

... information with is returned to the source that created it so that source can understand and have control over it (O'Hair, D.)." The principles of biofeedback date back more than a half a century. "Biofeedback" is a term that was coined in the late 1960's. The theories involved in biofeedback and psychophysiology began with the study on homeostatic mechanisms. The human organism insures its survival through the maintenance of homeostasis. In order to control or altar behavior, a person must have information that is available through th ...

Number of words: 1559 | Number of pages: 6

The Mind, Music, And Behavior

... a collection of sound waves that propagate through the air, and has varying frequencies and tones following a discernible order. Yet we all recognize the significance of the brain beyond its physical function. Our minds are the essence of what we are. The brain enigmatically stores memories, and lets people experience such things as emotion, sensations, and thoughts. In the same sense, music is more than just a collection of vibrations. This leads to the question of how does music affect the mind, and in addition, how does music affect human b ...

Number of words: 1995 | Number of pages: 8

Reproductive Technologies: Does Choice Mean Freedom?

... choice? "The range of physical possibilities from which a person can choose at a given moment has no direct relevance to freedom…Whether a person is free or not does not depend on the range of choice." (Haylek 1960, p.12f). This subject is so socially charged that a women could not possibly have true freedom of choice but a choice which is basically decided for her, whether it be by the limited choices made available to her by medical science or by the men which are directly involved with them in the decision. In order to truly underst ...

Number of words: 1715 | Number of pages: 7

The Trials Of Toilet Training

... that is, the complete process from knowing it's time to emptying the pot and flushing the waste down, all unsupervised. Any parent would agree, this is incredible. They use a combination of the same principals used in Practical Applications of Psychology. The overall objective is to teach the child to toilet himself with the same independence as an adult without the need for reminders, continued praise, or assistance. This method is rapid because of the variety of learning techniques. Learning by imitation, learning by teaching, a par ...

Number of words: 807 | Number of pages: 3

Sexual Abuse And Repressed Memories

... Recently, court cases have been settled by using the theory of repressed memories. As a result, many people have been convicted of crimes that happened many years before. The real question is which of these repressed memories actually existed and which are just false memories? This has caused many controversies in the field of psychology. Many people believe in the theory of repressed memories. Psychologists argue that people store different experiences in the right and left halves of their brain. The left stores sequential, logic ...

Number of words: 689 | Number of pages: 3

Mononucleosis

... Next, the patient gets the symptoms. Then the patient may die or recover spontaneously, or the infection may respond to specific therapy. Often there is an immunity. Infectious diseases have strongly influenced the course of history on Earth. The organisms responsible for human infections are viruses. Viruses are simple life forms consisting of nucleic acid, encoding genetic information , and surface components of protein that enable them to enter cells. Viruses are unable to multiple outside of cells. Mono is found in the DNA i ...

Number of words: 633 | Number of pages: 3

Attention Deficit Hyperactivity Disorder

... Ritalin. Ritalin, and other similar medications also used to treat ADHD, are not a cure, and should not be the only method of treatment used for treating this disorder. Medication, combined with psychotherapy, cognitive-behavioral therapy, and social skills training, is most helpful form of treatment for this disorder. In the last decade, scientists have learned much about the course of the disorder and are now able to identify and treat children, adolescents, and adults who have it. A variety of medications, behavior-changing therapies, ...

Number of words: 2366 | Number of pages: 9

Assisted Suicide: An Easier Way Out

... ill patients will not get better or become cured of the disease they have. According to many medical physicians the expression "terminally ill" means being in the final stages of a disease that is incurable (Hentoff, p.10). If a person has a despairing disease such as AIDS, that person may not want to live the rest of their short life with all the pain and frustration. Next, the terminally ill might injure their body even more by taking up the decision in their own hands. Offering help in assisted suicides to the fatally il ...

Number of words: 565 | Number of pages: 3

When Is Now? Euthanasia And Morality

... pain for perhaps two hours or a bit more. Then he would begin to moan, or whimper, very low, as though he didn't want to wake me. Then he would begin to howl, like a dog. When this happened, he would ring for a nurse, and ask for the pain-killer. The third night of his routine, a terrible thought occurred to me. 'If Jack were a dog, I thought, what would be done to him?' The answer was obvious: the pound, and the chloroform. No human being with a spark of pity could let a living thing suffer so, to no good end." (James Rachel's The Moral ...

Number of words: 1539 | Number of pages: 6

Bulimia Nervosa

... sore throat from vomiting, and scars on the hand from inducing vomiting. Overuse of laxatives can cause stomach upset and other digestive troubles. Other dangers are dehydration, loss of potassium, and tearing of the esophagus. These eating disorders also occur in men and older women, but much less frequently. Women with diabetes, who have a high rate of bulimia, often lose weight after an eating binge by reducing their dose of insulin. According to recent research, this practice damages eye tissue and raises the risk of diabetic ret ...

Number of words: 972 | Number of pages: 4

The Ebola Virus

... (EBOS), Tai (EBOT) and Reston (EBOR). They are very similar except for small serological differences and gene sequence differences. The Reston Strain is the only one which does not affect humans. The Ebola virus was named after the Ebola river in Zaire, Africa after its first outbreak in 1976. STRUCTURE When magnified by an electron microscope, the ebola virus resembles long filaments and are threadlike in shape. It usually is found in the form of a "U- shape". There are many 7nm spikes which are 10nm apart from each other visibl ...

Number of words: 1574 | Number of pages: 6

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