... of subject comfort. Hence, there are many more rules now than even twenty years ago. These rules really encompass a few broad but very important ideas. One of these ideas is protecting the dignity of the subjects. Another important component of this code refers to consent. All of these will be explained in greater detail below. Another gray area in psychology lies in the deception of subjects. There are some basic rules guiding how deceptions can be carried out. There is a large section of the code that was made with regards to animal research. The last major section of the ASA ethical guidelines h ...

... would cancel the proton's when they met and nothing would remain; in reality, two extremely high-energy gamma photons are produced. Today's theories of the universe say that there is no such thing as a negative mass. The second and more subtle mistake is the idea that anti-water would only annihilate with ordinary water, and could safety be kept in (say) an iron container. This is not so: it is the subatomic particles that react so destructively, and their arrangement makes no difference. Scientists at CERN in Geneva are working on a device called the LEAR (low energy an ...

... they promote their hidden agendas in the halls of the United States congress. Genetic engineering is a safe and powerful tool that will yield unprecedented results, specifically in the field of medicine. It will usher in a world where gene defects, bacterial disease, and even aging are a thing of the past. By understanding genetic engineering and its history, discovering its possibilities, and answering the moral and safety questions it brings forth, the blanket of fear covering this remarkable technical miracle can be lifted. The first step to understanding genetic engineering, and embracing its possibilitie ...

... are carbon monoxide, carbon dioxide, hydrocarbons, and nitrogen oxides. Nitrogen oxides can react with hydrocarbons in the prescence of sunlight to produce a form of oxygen called o-zone. O-zone(O³) is the chief component of photochemical smog, which is a common form of . Fuel combustion for heating and cooling homes,offices,buildings, and factories contribute significantly to . Electric power plants that burn coal or oil in also releases pollutants into the atmosphere. The major pollutants from these source are nitrogen- oxides, sulfur-oxides, and carbon dioxide. The rapid growth of population and ...

... vegetation, animal life, and animal species as they did in the past. However, the size of theses majestic rainforests has diminished immensely over a course of about 100 years. Recent studies and estimates conclude that around two percent of the world's rainforests is lost each year. Unless we change this amount of deforestation, there will be little of our rainforests left in 50 years. Our rainforests are an integral part in our world's ecosystem, and therefore need to be conserved as best we can. The rainforests provide safety and life to millions of kinds of life, they may contain cures to many of the worl ...

... bladder is usually nine to thirty centimeters long, and is a translucent pink, blue, or purple. On top of the bladder is a crest. This is to catch the wind, and move the man-of-war along. Below the bladder, hang long stringy tentacles, that can reach a length of up to fifty meters. The tentacles are made-up of three different types of polyps. The names of these three polyps are: dactylozooid, gonozooid, and gastrozooid. The polyps are the parts that: capture prey, digest prey, and reproduce. The dactylozooids have cells called nematocysts(3). The nematocysts release a toxin(4) into anything that they come into conta ...

... drives had been infected. I wished I had learned about es a long time ago. What is a , anyway? Is it a computer with a cold? A computer "virus" is called a virus because of three distinct similarities to a biological virus. They are: ? They must have the ability to make copies of, or replicate, itself. ? They must have a need for a "host," or functional program to which it can attach. ? The virus must do some kind of harm to the computer system or at least cause some kind of unexpected or unwanted behaviour. Sometimes es just eat up memory or display annoying messages, but the more dangerous ones can destroy data ...

... and more resistant to chemicals. Small quantities mixed with steel make the metal stainless. Stainless steel is used to make cutlery and kitchen equipment because it does not rust easily and takes a mirror-like polish. This steel contains about 13 percent chromium and 0.3 percent carbon. The hardness of steel can be increased by adding small quantities of chromium to it. Chromium steel alloys (mixtures containing one or more metals) are used to make armor plating for tanks and warships. They are also used for ball bearings and the hard cutting edges of high-speed machine tools. Nickel is highly re ...

... absorption spectrum and an excitation spectrum are by their nature actually equivalent. The two dyes exhibit energy transfer properties. The donor is coumarin and the acceptor the fluorescein. When the donor is excited, it is naturally decaying to the ground state. However in presence of an acceptor, this process is enhanced trough energy transfer. We will distinguish between collisional energy transfer and dipole-dipole transfer. From here we will try to determine the quenching constant and the distance at which decay and energy transfer are equally probable, as well as prove that Stern-Volmer's law and Förster's ...

... this list from its greater distance. Rigel, of nearly the same absolute magnitude, but closer, stands even higher in the list. Note that most of these distances are really nearby, on a cosmic scale, and that they are generally uncertain by at least 20%. All stars are variable to some extent; those which are visibly variable are marked with a "v". What are apparent and absolute magnitudes? Apparent is how bright the appear to us in the sky. The scale is somewhat arbitrary, as explained above, but a magnitude difference of 5 has been set to exactly a factor of 100 in intensity. Absolute magnitudes are how bright a s ...