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Science and Nature Term Papers and Reports |
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Management Techniques For The Red-Cockaded Woodpecker On Federal Lands
2093 Words - 8 Pages.... construct nest sites in an
effort to enhance red-cockaded woodpecker habitat on limited federal holdings in
the American southeast.
Key words: Picoides borealis, Global Positioning System, Geographic Information
System, cavity trees, cavity restrictors
The red-cockaded woodpecker (Picoides borealis) is an endangered species
that inhabits pine forests in an historical range from Texas to the Atlantic
coast (Jackson, 1986; Reed et al., 1988). Picoides borealis nest in clans or
family groups that usually consist of one breeding pair and 2 non-breeding male
helpers (Jackson, 1986 ). This group establishes and defends a territory that
includes foraging habitat and nest ....
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Phosphates In Water Pollution
791 Words - 3 Pages.... of plant fertilizer.
Phosphates have caused increasing attention recently. The focus is on
the environmentally harmful effects in household detergents. Wastewater, from
laundering agents, contains phosphates, which are said to be a water pollutant.
Most laundry detergents contain approximately 35% to 75% sodium
triphosphate (Na5P3O10), which serves two purposes. Providing an alkaline
solution (pH 9.0 to 10.5) is necessary for effective cleansing and also to tie
up calcium and magnesium ions found in natural waters and prevent them from
interfering with the cleansing role of the detergent.
Eutrophication is the progressive over-fertilization of water, in which
festering m ....
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The Software Industry Report
2684 Words - 10 Pages.... from various sites on the Internet.
3.0
Software is an extremely Labour intensive activity and therefore it is essentially a 100% value adding process. It could possibly be labelled as a unique commercial phenomenon, but it requires much maintenance and a continual need for improvement and enhancement. The software industry can be split into three broad sectors:
? Small Office, Home Office (SO-HO)
? Games
? Industrial Use
Because of the difficulty in separating consumer software purchased by individuals, into applications destined for use by businesses and the home user. I am going to primarily focus on So-ho, home user market, and takes account of the so ....
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How North Carolina Is Affected By Water Pollution
407 Words - 2 Pages.... and 6% are impaired for aquatic life uses. A few lakes are impacted by dioxin, metals, and excessive nutrient enrichment. The Champion Paper mill on the Pigeon River is the source of dioxin contamination in Waterville Lake. The State and the mill implemented a dioxin minimization program in the mid-1980s and completed a modernization program in 1993 that will reduce water usage and discharges.
About 94% of the estuaries and sounds in North Carolina fgully support designated uses. Agriculture, urban runoff, septic tanks, and point source discharges are the leading sources of nutrients, bacteria, and low dissolved oxygen that degrade estuaries.
About half of the people in ....
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Celiac Sprue Disease
1518 Words - 6 Pages.... 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 years ago a British physician named Samuel Gee described the "coeliac affection." Dr. Gee observed the syndrome i ....
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Cladocerans
1562 Words - 6 Pages.... consist entirely of females which reproduce asexually. As winter (or sometimes spring) approaches males appear and sexual reproduction occurs typically involving the production of resistant, over-wintering eggs. Such eggs are usually enclosed in a purselike ephippium that rests in the sediment at the bottom of the lake or pond until spring at which time the eggs hatch.
1. Daphnia magna. Take a small culture dish to the instructor to receive a few living D. magna. This is a very large species, as go, and one that is easily cultured in the laboratory. Return to your bench and observe the animals using the dissecting microscope. Note the characteristic jerky swimmin ....
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Nuclear Power
356 Words - 2 Pages.... too. All the burning that is required to turn the turbines
releases much sulfur, nitrogen gases, and other pollutants into the
atmosphere.
The cleanest, cheapest, and least polluting power plant of the two types
is the hydroelectric power plant. The main reason most countries use
thermal versus the hydroelectric is because their countries don’t have
enough concentrated water to create enough energy to generate
electricity. (World Book vol. 14, 586)
Nuclear power plants generate only about eleven percent of the world’s
electricity. There are around 316 nuclear power plants in the world
that create 213,000 megawatts of electricity. (INFOPEDIA)
Rad ....
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The Environmental Impact Of Eating Beef And Dairy Products
1835 Words - 7 Pages.... land in Central America was occupied by cattle and other livestock.
More than half the rual families in Central America-35 million people-are now
landless or own too litle land to support themselves. Cattle are also a major
cause of desertification around the planet. Today about 1.3 billion cattle are
trampling and stripping much of the vegetative cover from the earth's remaining
grasslands. Each animal eats its way through 900 pounds of vegetation a month.
Without plants to anchor the soil, absorb the water, and recycle the nutrients,
the land has become increasingly vulnerable to wind and water erosion. More
than 60 percent of the world's rangeland has been damaged by ....
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