.... and are screened for conditions such as AIDS, gonorrhea and other STDS. Even though freezing sperm doesn't seem to affect a pregnancy, it reduces the sperm's movement and influences the success rate of . About 75 to 85 percent of women inseminated with fresh donor semen will get pregnant--especially if the procedure is repeated over several months. Unfortunately, freezing the sperm decreases the chances of success by 10 to 15 percent. Today's reproductive technology is not limited to helping create human families. Reproductive specialists at the nation's zoos and research cente .....

.... America. Their distribution once extended as far south as Colorado, Indiana, Pennsylvania, and perhaps Michigan. It looks like a weasel maybe because it is in the weasel family.It has black and brown fur and long claws.It’s legs are short but strong. The Wolverine is usually solitary except for members of the opposite sex and a female's young. After the females give birth they hide with their young. The mother defends her territory and intruders are not tolerated. This territorial behavior continues until the young are ready to hunt on their own. The Wolverine has a diet that can in .....

.... of many rocks such as granite, which is quartz and mica cemented together with felspar. These rocks are gradually weathered and broken down by the action of carbon-dioxide from the air dissolved in rainwater forming ‘kaolin'. This is further broken down to form other substances, ultimately resulting in the formation of Aluminium deposits. Where and how Aluminium is mined? Aluminium is never found in it's pure state until it has been refined. Aluminium is made when refining alumina, which is in turn found from the ore ‘bauxite'. Bauxite is often mined in the opencast method. Aluminium .....

.... 90% of it by mixing it with sulfuric acid, and another 3-5% is catabolized by enzyme reactions to the acid. The metabolites are excreted in the urine. The dosage of the drug should be used according to the carton instructions. A 10 gram over dose in adults, 140 mg for kids, can cause permanent liver damage. Also if you had just taken some other drugs , The may become more toxic since the drugs are catabolized in the liver. To protect yourself from injury, you should take 1 gram of vitamin C and Cysteine -a bodily antioxidant. The kidneys can be permanently damaged if you continuo .....

.... up so many electrons that your finger would explode! But this is nothing to worry about... unless you have carpeting. Although we modern persons tend to take our electric lights, radios, mixers, etc. for granted. Hundreds of years ago people did not have any of these things, which is just as well because there was no place to plug them in. Then along came the first Electrical Pioneer, Benjamin Franklin, who flew a kite in a lightning storm and received a serious electrical shock. This proved that lightning was powered by the same force as carpets, but it also damaged Franklin's brai .....

.... follow the instructions of the experimenter, that is to hit the baseball. 3) Will you treat all the participants in the same way? No, I would not treat all the participants in the same way. The control group would not be given caffeine. However, I would treat all experimental groups the same because that will give more accurate results. If the participants were not treated the same I would not be able to accurately measure how much or how little the caffeine affected the students. 4) How will you select the participants of your study so that they are representative of the student .....

.... in various directions. They form two or three parties going out simultaneously in different directions for 100 yards or more. In the U.S. army we attack countries in different areas to weaken the force we are attacking. We send out thousands of troops in various directions and try to surround the source of the location being attacked. For instance, if there are several locations that needed to be attacked to weaken the enemy, like their weapon storage or air force base, we send several sets of troops to attack each individual location. This is very similar to the way army ants set out .....

.... 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 theory are obeyed. 2. Results 2.1. Electronic Absorption Spectra We made up stock solutions for both salts and diluted them down to use in the UV/vis spectrometer. Coumarin 1 C = 8 x10-5 mol dm -3 We obtained a spectrum with a maximum at 376.5nm at an absorbance of 1.4573, using Beer-Lambert's law, we deduced the molar decadic absorption coefficients. .....

.... method is called thermonuclear. Even though fusion reasearch still needs a lot of time, there has been some progress in discovering how we can use this. The two fusion reactions that are the most promising both involve the heavier isotopes of hydrogen: 1) deuterium (composed of one proton and one neutron) Deuterium occurs naturally as a minor constituent in all hydrogen-containing materials--such as water--in quantities sufficient to meet all the energy needs of societies for many billions of years. 2) tritium (composed of one proton and two neutrons). Tritium can be bred from li .....

.... causing it to glow. The flow of plasma from the sun is generally continuos, although it occasionally bursts out of holes in the sun's outermost atmosphere. Massive ejections of plasma have also been shown to accompany solar flares, prominences, and sunspots. It is during these periods of highest solar activity that one is most likely to witness aurorae. The aurora is an ideal subject for the amateur astronomer because no telescope or any other optical apparatus is needed for observing it. It also makes a good subject for anyone who can draw or paint. This beautiful display of light .....