.... Some cannot, like cancer or blood type (A, B, or O). Some human traits are behavioral, like manual dexterity, sexual orientation, hand-eye coordination, and schizophrenia, and some are not, like blood type (A, B, or O), race, or the hardness of tooth enamel. Some are disease traits: hemophilia, schizophrenia, cancer, color blindness. Some are politically and religiously charged: skin color, sex. Some traits are not politically and religiously charged: the hardness of the enamel on your teeth, which is controlled by a single gene, whose location is known, and who’s function we do understand. Now scientists are attempting to find proof if the infamous “gay ge .....

.... is the case the parents are face with one of the more serious, and potentially deadly conditions known to medicine: the ectopic pregnancy. Ectopic pregnancies are the number one cause of death of women in the first trimester of pregnancy. There are many aspects that have to taken care of when an ectopic pregnancy is identified. Not only are there the symptoms, the diagnosis, the treatments, and the results to deal with, but also moral ethics come into play. The term “ectopic” literally means “out of place”. Other things in the human body can also be considered ectopic if it sits in an abnormal position in the body. A heart beat that originates from and unusua .....

.... considered to be extinct; we thought the last coelacanth lived approximately 70 million years ago. In December of 1938, however, fishermen off the eastern coast of South Africa caught a living coelacanth. It was so similar to its ancient relatives that it was called a "living fossil." For years after this fortunate discovery, scientists searched for another living coelacanth. Finally, off the Comero Islands, north of Madagascar, they met with success. Since then, more than 200 specimens have been found, all in the same region. Apart from the novelty of being such rare fish, have very great zoological importance. First, they are "living fossils"-a l .....

.... of hydrogen during charge and discharge. The cathode electrode is reversible between Ni(OH)2 and nickel oxyhydroxide (NiOOH). At both electrode, oxidation-reduction reactions take place in an alkaline medium consisting of 30% by weight KOH in water. When charging, Ni(OH)2 at the positive electrode becomes oxidized and the metal hydride becomes reduced. In fact, the hydrogen which was separated from water come to react with the metal in the negative electrode to form MH. On the other hand, the hydroxyl ion ( from water) reacts with Ni(OH)2 at the positive electrode to form NiOOH. Ni now change from +2 to +3. Ni(OH)2 +OH = NiOOH + H2O + e From equat .....

.... the social insects of the Hymenoptera, an order also including wasps and bees. The earliest known specimens are found entombed in the Scandinavian Baltic Amber samples which scientists date in upwards of 100 million years old (The Ant Colony Œ89). These primitive samples have evolved into the 5000 to 10000 species known today which vary amongst themselves as widely as the numbers suggest (Social Insects Œ68). These remarkably adaptive creatures are found in some form on all continents and all habitats but the extreme arctics. Their success is manifested in the claim that at any time there are at least 1 quadrillion living ants on earth(Groliers Œ93). All .....

.... reproduce them in the laboratory. This offers the possibility of creating entirely new genes with commercially or medically desirable properties. While the potential benefits of genetic engineering are considerable, so may be the potential dangers. For example, the introduction of cancer-causing genes into a common infectious organism, such as the influenza virus, could be hazardous. We have come to believe that all human beings are equal; but even more firmly, we are taught to believe each one of us is unique. Is that idea undercut by cloning? That is, if you can deliberately make any number of copies of an individual, is each one special? How special .....

.... that was needed did not exist yet. It was not until the 1950's where the stage was set to build a laser. Charles Townes, a scientist, wanted to see if microwaves, which are very similar to light, might be stimulated to produce an amplified beam by the process that Albert Einstein described. Townes was successful in 1954 when he constructed what he called the maser (microwave amplification by stimulated emission of radiation). The maser amplifies the number of photons that cause microwaves. After the invention of the maser many scientists became interested in the idea of building an optical maser, which soon received the name laser (light amplification by sti .....

.... managers attempt to accurately assess species abundance, alter woodpecker nesting cavities, and construct nest sites in an effort to enhance red-cockaded woodpecker habitat on limited federal holdings in the American southeast. Key words: Picoides borealis, Global Positioning System, Geographic Information System, cavity trees, cavity restrictors The red-cockaded woodpecker (Picoides borealis) is an endangered species that inhabits pine forests in an historical range from Texas to the Atlantic coast (Jackson, 1986; Reed et al., 1988). Picoides borealis nest in clans or family groups that usually consist of one breeding pair and 2 non-breeding male .....