... commonly experienced. Emotions are felt, but usually a single, powerful emotion is felt such as fear, anger, or joy, for example. Most dream content consists of memories, and are in the form of interrupted stories with frequent shifts of scene. One difference between waking and dreaming consciousness is that the latter tends to be an internal hallucinatory-like experience disconnected from the external world. Many dreams collected in laboratories are rather common, but some people tend to experience some bizarre dreams. Early in the 20th century, Sigmund Freud believed that dream content was composed of the ...

... 50,000 have some degree of air pollution. Burning garbage in open dumps causes air pollution, and also it smells pretty bad. Air pollution comes from many different sources. One of the major sources is carbon monoxide which manly comes from automobiles, but also burning of fossil fuels, CFCs etc. Air pollution does not leave the Earth it all gets trapped up in the atmosphere. This doesn't bother most people, and they think that it will not harm them. People burn down forests and people burn fossil fuels, and CFCs from aerosols. Every bit of this harms our atmosphere. Factories and transportation depend on huge ...

... Methane can also come from the decomposition of organic waste and livestock’s waste (cow poop). Nitrous oxide is emitted during agricultural and industrial activities, as well as during burning of solid waste and fossil fuels. (http://www.epa.gov/globalwarming/). Light energy comes through the earth’s atmosphere and is absorbed. It is then transformed into heat energy at the planet's surface. This heat energy then radiates upward into space. There the greenhouse gases found naturally in the troposphere absorb some of the infrared radiation. The gases insulate the Earth, but do eventually allowing some ...

... scavengers. This means that they are secondary consumers in web chains. Eventhough they are carnivores they sometimes accept eating green plants. The ecology of dogs right know is that it helps the human in many fields of life. Since the cave dweller times, dogs have been domesticated by humans and it has helped him to hunt, in herding, protection, etc. It has been very important as a work animal and as a psychological support for humans. The habitat of the dog is where it’s owner lives. Different dogs have different adaptations to their ancestral habitat but nowadays, this is not applicable. ANATOMY SKELETON T ...

... evidence do not unambiguously demonstrate the existence of life on Mars." ( Sagan and Shklovskii 273) Some scientist believe man should look up in the sky searching for new habitats for future generations, since human kind today seems to be going backwards in many aspects of the earth's ecology. The first attempt would be to study the moon; the second, our neighbor planet. Unfortunately, our actual technology slightly provides strong, useful information about the red planet because of the vast distance between us. While people such as Steven Spielberg and George Lucas try to convince us with hundred million doll ...

... may not even be aware that they carry and can spread the virus. Combating it is a major challenge to biomedical scientists and health-care providers. infection and AIDS represent among the most pressing public-policy and public-health problems worldwide. COSTS I think that the AIDS epidemic is having a profound impact on many aspects of medicine and health care. The U.S. Public Health Service estimates that in 1993, the lifetime cost of treating a person with AIDS from infection to death is approximately $119,000. Outpatient care, including medication, visits to doctors, home health aids, and long-term care, accoun ...

... route calls when you're out of town, and even prioritize and read your email messages to you. Portico is so responsive, you can interrupt mid-sentence with a new request, eliminating the need to wait through menus. You won't get bogged down with messages you don't want. And you shouldn't miss the ones you do want. The brains behind Portico are contained in a sophisticated Network Operations Center. This state-of-the-art system represents the future of communications. The Network Operations Center embodies the General Magic business model: minimum maintenance with maximum functionality. The Network Operations Center ...

... is the key aerodynamic force. It is the force that opposes weight. In straight-and-level, unaccelerated flight, when weight and lift are equal, an airplane is in a state of equilibrium. If the other aerodynamic factors remain constant, that airplane neither gains nor loses altitude. When an airplane is stationary on the ramp, it is also in equilibrium, but the aerodynamic forces are not a factor. In calm wind conditions, the atmosphere exerts equal pressure on the upper and lower surfaces of the wing. Movement of air about the airplane, particularly the wing, is necessary before the aerodynamic force of lift becomes ...

... dense growth. According to the U.S. Department of Agriculture, over a twenty year period one acre planted with hemp produces as much pulp as 4.1 acres of trees. Farming hemp at such a fast rate is the key to providing large enough amounts of raw biomass at costs low enough to enable cellulose (the hydrocarbon provider necessary for fuel production) to recapture lost markets. This versatility has led people to believe it is the only biomass resource capable of making America energy independent. There is only one catch: the federal government prohibited the growth of hemp in 1938. There were also theories that ...

... and variable symptoms challenge physicians to make a correct diagnosis in a timely fashion. The term "celiac sprue" has been applied to a clinical syndrome characterized by signs and symptoms of malabsorption, such as diarrhea and weight loss caused by eating grains. The term "gluten-sensitive enteropathy" more correctly defines the clinical pathologic disease caused by an immune-mediated sensitivity to gluten, a protein found in many cereal grains, principally wheat, barley, rye, and to a lesser degree oats. Most nutritionists agree that gluten is not present in rice, white or sweet potatoes, and corn. Over 100 yea ...