• American History • Arts & Movies • Biographies • Book Reports • Creative Writing • English • Geography • Health & Medicine • Legal • Miscellaneous • Money & Finance • Music • Poetry • Political • Religion • Sciences • Society • Technology • World History
Cancel Subscription
... of Prozac (anti-depressant drug) and fenfluramine. MDMA is usually taken orally in the form of pills synthesized by independent labs. They come in different colors, shapes, and sizes. The designer drug may also be taken in the form of a powder and injected into the blood stream for a quicker " high". The actual potency of the pills is determined by the size. They range from 50mg to 300mg depending on where it is made. Usually ecstasy is combined with smack, cocaine, heroin, or LSD as a way of coping with some of its undesirable effects. Although drugs are very expensive to purchase, they are extremely cheap to make. "One tablet can be produced for two cents and turn around and be s ...
... in 1966, the American physicist Peter Sorokin built the first dye laser. To begin with, I will explain the definition of a laser: It is a device that produces a very narrow powerful beam of light. A laser light is a narrow beam of light, in which all the waves are traveling exactly at the same length and moving together as one. A laser light is made up of only one wavelength and it is a single pure color, while a normal light has many different wavelengths or colors. The most common laser has three parts to it. They are energy source, an active medium, and optical cavity. An energy source can be anything that can give energy to the active medium through a process called “pumping.R ...
... so the disease is completely finished. If it is not, then this will just give the bacteria some time to find a way to avoid the effects of the drug. One antibiotic that will always have a long lasting effect in history is penicillin. This was the first antibiotic ever to be discovered. Alexander Fleming was the person responsible for the discovery in 1928. In his laboratory, he noticed that in some of his bacteria colonies, that he was growing, were some clear spots. He realized that something had killed the bacteria in these clear spots, which ended up to be a fungus growth. He then discovered that inside this mold was a substance that killed bacteria. It was the antibiotic, peni ...
... form of lighting, and could be used for cooking and heating. Due to the persistent problem of limited fuel, inhabitants looked for a way to prolong the fuel. (Thwig 29-34) The next step in lighting that followed was a candle. Candles offered one main advantage over the fire by itself, fuel. A candle was able to provide a long burning light and was relatively inexpensive to produce. Candles were originally made from whale fat. The flame would burn and would slowly use the wick as a fuel and would burn much slower because the wax slowed the burning down. (Thwig 35-49) The next form of lighting that followed the candle was the oil lamp. The oil for the lamps was also made from whales. The oi ...
... Mendel’s theories on genetics were rediscovered by Charles Davenport in 1901 that the ideas of modern was given any credibility.4 Davenport conducted experiments that proved what Mendel had said years before in his laws of genetics. Davenport, however, took it another step. He extended Mendel’s laws to include characteristics such as pauperism, alcoholism, and the popular term of the day, “feeblemindedness.”5 Davenport also connected behavior to race, class, and pedigree. While all of Davenport’s ideas were up to date with all current research, such as his conclusion that characteristics such as what he called “thalassophilia,”6 or the love of the sea, were sex-linked recessive t ...
... is also inherited from your parents. Chromosomes contain the information of a person's potential height, potential strength against disease, and other physical characteristics. A human being has 23 pairs of chromosomes in every cell in his or her body (except reproductive cells). If, during a stage of growth, a fetus somehow loses one of these chromosomes, the baby may die, or have a birth defect. Since this error is written on their genes, they may pass it on to their children, who may or may not have anything wrong with them. The way a person looks, as I have stated, is hereditary. In humans, brown eyes are dominant. Thus, if a person with brown eyes and a recessive blue ...
... the Renaissance Era, Andreas Vesalius conducted experiments on monkeys, swine, and goats (1:3). By the late eighteenth century, the methods of scientific discovery were changer to experimentation of live animals by two French physiologists, Claude Bernard and Francious Magnedie. They revolutionized methods of scientific discovery by establishing live animal as common practice (1:4). Claude Bernard believed that in order for medicine to progress, there must be experimental research, and affirmed that "vivisection is indispensable for physical research". This is when the anti-vivisection movement was established ("vivisection"). There are different views as to why or why not there should ...
... Like any other organ, the heart requires a steady flow of oxygen and nutrients to provide energy for rmovement, and to maintain the delicate balance of chemicals which allow for the careful electrical rhythm control of the heart beat. Unlike some other organs, the heart can survive only a matter of minutes without these nutrients, and the rest of the body can survive only minutes without the heart--thus the critical nature of these syndromes. Causes of blockage range from congenital tissue strands within or over the arteries to spasms of the muscular coat of the arteries themselves. By far the most common cause, however, is the deposition of plaques of cholesterol, platelets and othe ...
... lattice energy. Figure 1 The transfer of electrons involved in the formation of (a) sodium chloride and (b) calcium fluoride. Each atom forms an ion with an outer shell containing eight electrons. For many elements, compounds cannot be formed by the production of ions, since the energy released in the formation of the lattice of ions would be insufficient to overcome the energy required to form the ions would be insufficient to overcome the energy required to form the ions in the first place. In order for the atoms to achieve a noble gas configuration they must use another method of bonding by the process of electron sharing. From figure 2, you can see that the example ...
... we can meddle with nature in general. Furthermore, it is stressed that, whatever potential uses it may be put to at some future stage, the technique raises a long string of ethical problems. In addition, it may be feared that within a number of years the development and application of animal techniques will lead to the testing, development and application of human . Though this notion seems very unlikely to occur within the span of the next few years, but the possibility does exist, that the techniques which are currently being used to clone animals may also be used to clone humans one day. There are numerous risks and concerns in regards to . oversteps a limit that man should not exce ...
Browse: 1 ... 4 5 6 7 8 9 10 11 12 13 14 next »