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Reproduction: A-Courting To Nature!

... her faithfulness? Either outcome is possible in an animal world marked daily by scenes of courtship, spurning and love triumphant. And take note: these are not the imaginings of some Disney screen-16 writer. Decades ago Konrad Lorenz, a famed Austrian naturalist, made detailed studies of Greylags and afterwards showed no hesitation in using words like love, grief and even embarrassment to describe the behavior of these large, social birds. At the same time he did not forget that all romance - animal and human - is tied intimately to nat ...

Number of words: 961 | Number of pages: 4

On Darwin's Theory Of Natural Selection

... a child, he turned away from his father's footsteps and becoming a physician after seeing several operations performed without anesthesia. He became interested in geology and natural history and was not intrigued by his studies of the holy ordge University. He was sent on a trip to explore the world and while he was on this journey, he became enthralled with biology and geology. He made and wrote observations about coral reefs (1842), and volcanic islands (1844), but his greatest biological observations were those pertaining to his theory ...

Number of words: 655 | Number of pages: 3

Attention Deficit Hyperactive Disorder

... differ from one child to the next, each of whom show a different pattern of behavior and personality. There are, however, certain similarities among ADHD children. ADHD was described as early as 1845 by the German physician Henrich Hoffman in his classic Der Struwelpeter (Slovenly Peter), a collection of humorous moral tales for children. The heroes were taken from his observations of children. In 1902, Dr. G. F. Still, described the behavior of a group of hyperactive children. He knew of no medical reasons for their behavi ...

Number of words: 1297 | Number of pages: 5

Biological And Chemical Weapons

... 1998). There are many reasons why chemical and biological warfare is so effective. Throughout the medieval times, Cadavers were catapulted over castle and fortress walls. Disease would spread within the enclosed walls. Cadavers were also placed up stream and the inhabitants of the fortress would drink the deadly, microorganism infested water. are very inexpensive. It does not take a very sophisticated industrial base to produce lethal chemicals. This makes it a viable means of warfare for Third World countries. The use of ch ...

Number of words: 1582 | Number of pages: 6

Genetic Engineering 5

... of making new substances or performing new functions” (Wald 45). It is also one of the top controversial issues of the 20th century (Epstein 1). Many believe that continuing to provide genetically constructed inventions in this world is ethical, which means that these inventions conform to one’s moral standards (Epstein 5). Others argue that such inventions as human clones, which are genetically constructed humans, and other genetically created figures, are wrong and should be stopped (Epstein 5). Overwhelming textual evidence ...

Number of words: 1126 | Number of pages: 5

Larnyx Cancer

... and location of the tumor. Most cases of larynx cancer occurs in the glottis area, or vocal cord section. When a tumor develops in this area it is usually painless, but almost always results in hoarseness and a change in the person’s voice. If the tumor occurs in the supraglottis, or the section above the vocal cords, it may cause a lump in the throat, sore throat, or earaches. When the tumor develops in the area where the larynx and trachea join, subglottis, the person experiences trouble in breathing, very noisy breathing. Const ...

Number of words: 522 | Number of pages: 2

Acid Rain 3

... about 25% from thermoelectric generating stations, and the balance from other industrial, commercial, and residential combustion processes. These pollutants come from the use of coal in the production of electricity, from smelting, and from the internal combustion engines in most cars. Once released into the atmosphere, they are converted into such pollutants as nitric acid and sulfuric acid, both dissolving easily in water. This results in acidic water droplets that can be carried by prevailing winds, returning to Earth as acid rain, ...

Number of words: 723 | Number of pages: 3

Diffraction And The Debye-Scherrer Camera

... particular makes use of the identifying diffraction patterns that are a result of atomic planar spacing. Before getting into the specifics of the Debye-Scherrer camera it will be advantageous to beginning with the fundamental concept of simple harmonic motion as it relates to light waves. Simple harmonic motion is the condition in which a particle that is moving along the x-axis has a displacement function given by the following relation x = Acos(wt + f) where x is the position along the x axis A is the amplitude or in other words the maxi ...

Number of words: 2086 | Number of pages: 8

Acid Rain

... with a pH of 4 is ten times as acidic as a lake with a pH of 5, and a lake with a pH of 3 is 100 times as acidic, After many rain falls of Acid rain, the pH of a normal lake ( 5.8 ) to 4. Acid Rain has been known to reach the acidicy of pH 2, ( battery acid has a pH if 1 ) this is a drastic change, as normal rain is average pH 5.2. Acid Rain can dissolve limestone and chalk, and corrodes outdoor structures. Statues and monuments that are left unprotected can fall victim to the unpredjudiced destruction of acid rain. Ac ...

Number of words: 375 | Number of pages: 2

Biomedical Engineering

... are: biomedical instrumentation, computing in medical research and diagnosis, signal and image processing, clinical engineering, rehabilitation engineering, respiratory and flow studies. (University of Miami) Biomedical engineering is concerned with the application of engineering and science methods to the analysis of biological and physiological problems, the delivery of health care, and/or industrial applications. (Drexel University) The biomedical engineer serves as the connection between traditional engineering subjects and living ...

Number of words: 939 | Number of pages: 4

Chinese Shih Poetry And Philos

... Taoism and Confucianism. Poets such as Tu Fu and Po Chü-i expressed the ideas of Taoism and Confucianism, respectively, while their fellow poet T’ao Ch’ien expressed both, through their poetry. Confucianism is based on the ideas of Confucius, the man who gave the school of thought its name. The main goal of Confucianists was to return a gentlemanly society to China. The core of Confucianism concerned social structure. Confucius taught that a man should respect and obey those of higher rank than himself, whether they be the fathe ...

Number of words: 1127 | Number of pages: 5

Acid Rain

... and contaminated drinking water. Research has shown that although some of the damage attributed to is a result of natural causes, sulfur dioxide from oil and coal combustion and nitrogen oxides produced from automobile engines have greatly intensified the problem. Winds can carry the pollutants thousands of kilometers away from their source. The British government has recognized that sulfur emissions from power plants in the United Kingdom are contributing to acid deposition in Scandinavia. Canadian emissions contribute substantially ...

Number of words: 449 | Number of pages: 2

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