.... attention c. Does not appear to listen d. Struggles to follow through on instructions e. Difficulty with organization f. Avoids or dislikes requiring sustained mental effort g. Often loses things necessary for tasks h. Easily distracted i. Forgetful in daily activities 2. An individual experiencing six of the following characteristics defines ADHD – hyperactive/impulsive type: a. Fidgets with hands or feet or squirms in seat b. Difficulty remaining seated c. Runs about or climbs excessively (in adults may be limited to subjective feelings of restlessness) d. Difficulty engaging in activities quietly e. .....

.... for the environment by taking the gases in and produces oxygen out of it. By cutting down the trees we are allowing for more of the carbon to be exposed into the atmosphere. Another factor that most people would not consider in the raising of global warming is the excrement of cows. Cows produces tons of carbon that does not all get treated for, and is in the top five for highest amounts of carbon produced per year. This is another factor that somehow has to be dealt with. All of these causes of global warming have been know by scientists, it's the effects we are seeing in today's climate now they had no idea of. Arctic glaciers are .....

.... colder climate has shown some of the highest rates of MS.2 There is evidence of a slight increase in MS among first degree relatives--parents, siblings, and children. It is also suspected that the same family members may inherent a genetic susceptibility to MS. While it is possible to inherit a genetic susceptibility to MS, it is not possible to inherit the disease. And even people who have all the necessary genes don't necessarily get MS. The disease, experts believe, must be triggered by environmental factors. So MS is not considered a hereditary disease.3 Until the definite cause of Ms is proved the treatment cannot be truly scienti .....

.... from barely noticeable to catastrophically destructive. Six kinds of shock waves are generated in the process. Two are classified as body waves-that is, they travel through the earth's interior-and the other four are surface waves. The waves are further differentiated by the kinds of motions they impart to rock particles. Primary or compressional waves (P waves) send particles oscillating back and forth in the same direction as the waves are traveling, whereas secondary or transverse shear waves (S waves) impart vibrations perpendicular to their direction of travel. P waves always travel at higher velocities than S waves, so whenever an ear .....

.... This can cause muscles to be tighter than usual causing pulls and tears. Liver and kidney damage are caused by Creatine increasing the amount of ATP (adenosine tryphosphate) that is used for energy, made by the kidneys, which can cause the kidneys to stop producing ATP because of an overload of ATP being made from the Creatine. This can result in kidney or liver failure. Constriction of the blood vessels occurs when you use Creatine and work out for extended amounts of time. This can cause major constriction of the vessels around the heart causing abnormal heart rates and heart attacks. Pancretitis is another side effect where the pancreas .....

.... Eventually the plasma is drawn down toward the North and South magnetic poles. Along the way, it ionizes (creates an electric charge within) the oxygen and nitrogen gas it encounters in the atmosphere, 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 an .....

.... or no treatment. The term was first considered to be important about 20 years ago when scientists in Sweden and Norway first believed that acidic rain may be causing great ecological damage to the planet. The problem was that by the time that the scientist found the problem it was already very large. Detecting an acid lake is often quite difficult. A lake does not become acid over night. It happens over a period of many years, some times decades. The changes are usually to gradual for them to be noticed early. At the beginning of the 20th century most rivers/lakes like the river Tovdal in Norway had not yet begun to die. However .....

.... 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 anti-proton ring) in an attempt to slow the velocity of the anti-protons to a billionth of their normal speeds. The slowing of the anti-protons and positrons, which normally travel at a velocity of that near the speed of light, is neccesary so that they have a chance of meeting and combin .....

.... alkanes can be transformed into chloroform. This has been shown to accumulate in lungs of swimmers after they swim for extended periods of time. As mentioned above chloroform can be produced which can be used for anesthesia. Also dichloromethane, or paint stripper and 1,2-dichloroethane which is a dry cleaning fluid. Here is a sample reaction where a halogen replaces a hydrogen. CH4(g) + C12(g) ----> CH3Cl(g) + HCl(g) There are many uses for alkanes, for instance: Propane is used in gas grills, butane is used in cigarette lighters, through various reactions scientists can make paint stripper, anesthesia or dry cleaning fluid. .....

.... in a laboratory, transferring the embryo to the uterus, and waiting for pregnancy or menstruation. When a couple is unable to conceive, another woman must donate her eggs to the couple in order for IVF to succeed. To retrieve eggs from the donor, an IVF doctor will first treat the donor with fertility drugs to control the timing of the egg release and the chance of collecting more than one egg. This process is called "super ovulation". The egg follicles are then monitored through an ultrasound for four to five days. After at least three follicles have reached a diameter of seventeen millimeters on ultrasound, another hormone called Hum .....