... volume of carbon dioxide, methane and nitrous oxide emissions is an indicator of human's energy and resource consumption. An examination of population size, atmospheric concentrations of these gases and global temperature relative to time and with respect to each other is presented here to demonstrate the relations among these factors. POPULATION GROWTH Many of us have seen linear graphs of human population showing the enormous growth in the last two centuries. However, significant changes in population dynamics are lost in the exponential growth and long time scales. If the data are replotted on a log-population by log-time scale, significant population ...
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... skin infection begins as a raised itchy bump that resembles an insect bite, but within one to two days it develops into a vesicle and then a painless ulcer, usually one to three centimeters in diameter with a black necrotic (dying) area in the center of the ulcer. Lymph glands in the adjacent area may swell. About twenty percent of untreated cases of cutaneous anthrax will result in death (www.cdc.gov). Deaths are rare due to antimicrobial therapy. When anthrax is contracted by inhalation the initial symptoms resemble a common cold. After several days, the symptoms may progress to a severe breathing problems and shock. The inhalation of anthrax spores usually resul ...
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... 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 by 1926 local inspectors were noticing that many of the lakes were beginnin ...
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... Engineer named Louis P. Cailletet liquefied oxygen for the first time. Cailletet created liquid oxygen in his lab using a process known as adiabatic expansion, which is a "thermodynamic process in which the temperature of a gas is expanded without adding or extracting heat from the gas or the surrounding system"(Vance 26). At the same time Pictet used the "Joule-Thompson Effect," a thermodynamic process that states that the "temperature of a fluid is reduced in a process involving expansion below a certain temperature and pressure"(McClintock 4). After Cailletet and Pictet, a third method, known as cascading, was developed by Karol S. Olszewski and Zygmut von Wrob ...
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... has also been recorded both in the Budongo Forest, Mahale Mountains and the Gombe National Park. In Jane Goodall's, May 1979 article in the National Geographic called "Life and Death at Gombe" it reveals the first time that chimpanzees who were always perceived to be playful, gentle monkeys, could suddenly become dangerous killers. "I knew that some of our chimpanzees, so gentle for the most part, could on occasion become savage killers, ruthless cannibals, and that they had their own form of primitive warfare."(Goodall, 1979:594) To try and explain this ruthless behavior it is necessary to first analyze their social upbringing and unique lifestyle. ...
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... syndrome, without symptoms of other disorders. Another 5-10% have partial ADHD syndrome with one or more other problems, such as anxiety or depression.(CHADD) Gender and age affect the way the patients display their symptoms. Boys are more likely to have the disorder than girls. The symptoms of ADHD usually decrease with age, but those symptoms related with other similar disorders are said to increase with age. 30-50% of children with ADHD may display symptoms, although often times less severe, into adulthood. ADHD may be observed in children before the age of four, but it’s signs are often missed until the child begins school. ADHD is often acco ...
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... who are infected but do not know that they are. In the 1980s, the majority of infections in Singapore were homosexual or bisexual men; but now there are many infections seen among heterosexual men and women. Heterosexual sex is now the main method of transmission in Singapore and over 75% of infections throughout the world are acquired through heterosexual intercourse. Not everybody who has sex with an infected person will get infected. However, the risks increase sharply in the presence of other Sexually Transmitted Diseases (STD) i.e. gonorrhea, herpes and syphilis or when the infected person has symptoms of late HIV infection. Females have an eight times g ...
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... in terms of observable quantities of quanta, small bundles of energy. Quanta are the fundamental building blocks of everything according to the (The New Merriam-Webster Dictionary). The spaces between these quanta are called quantum foam; it is through these spaces that entities are destroyed and simultaneously reconstructed by teleportation, thus “moving” the entities to different places in our universe and helping them travel to other universes. In the novel, scientists discover that the proves the existence of multiple universes. The realization that these other “dimensions” exist totally alters their views of life on earth and of scientific concepts of t ...
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... as a serious global-scale environmental threat. The overwhelming majority of scientific experts believe human-induced climate change is inevitable. The question is not whether climate will change in response to human activities, but rather where (regional pattern), when (the rate of change) and by how much (magnitude). (17,18). Alarming information and trends are leading the scientific community in this same belief. The concept of is predicting detrimental events for the future. The most prevalent issue of is the increase in overall world temperature. In the thirty year time period of 1951-1980, a 0.4C temperature increase has been documented (Hanse ...
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... been under going alot of stress they are usually referring to a couple of unpleasant experiences. Now that we have an idea on what stress is the next question we should ask ourselves is ³what is or can cause stress². CAUSES OF STRESS There are many different things that cause stress. One may be if you have a big term paper due and you want to do your best to impress your seminar leader. Another may be peer or family related. All in all it is things, events, situations, and people that cause stress. It is how we perceive them that will determine whether or not stress will be a result from the encounter. Not only negative situations are the cause of stress. Joy ...
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