|
Help With Science Papers
Adaptation Syndrome
... messages to various parts of the body, resulting in bodily changes such as increased or irregular heart beats, shallow fast-breathing or muscle tension (refer to appendix xxx). It is this physical reactions that characterize this early stage is the GAS model. (Author, pg#).
Dr. Selye preformed most of the early work on the adaptation syndrome. His experiments in general looked at harmful stimuli on the response of the body. In an experiment, Seyle exposed a large number of rats to a refrigerated room where the temperature was near freezing,(Author pg#) “…during the first 48 hours they developed the ty ...
|
Disaster Spills Across Bhopal
... ruin the company’s reputation permanently. An angry worker, mad at a manager, decided to spoil a batch of chemicals in the plant. On the night of December 2nd, 1984, the unnamed suspect pumped large amounts of water into a chemical storage tank with a hose (Saxon, 1). The tank was filled with the gas Methyl Isocyanate (MIC), a chemical used in pesticides and very lethal to humans (Leonard, 3).
Around 11:00 p.m., a worker noted that heat and pressure were building in a tank and called for assistance, but by then it was too late. At 12:56 a.m., the morning of December 3rd, a faulty valve ruptured, allowing t ...
|
Nuclear Power
... while the atoms are
'decaying' to a stable state their energies can be used according to the
kind of energy they emit.
Since the mid 1900's radioactive wastes have been stored in
different manners, but since several years new ways of disposing and
storing these wastes have been developed so they may no longer be harmful.
A very advantageous way of storing radioactive wastes is by a process
called 'vitrification'.
Vitrification is a semi-continuous process that enables the
following operations to be carried out with the same equipment:
evaporation of the waste solution mixed with the additives necesary for
the produ ...
|
Biology
... from a host and being a parasite it is considered an obligated parasite.
2. The adult fern plant in its dominate generation (sporophyte)
develops sporangium on one side of its leaf. When meiosis is finished inside
the sporangia and the spores are completed the annulus dries out releasing the
spores. The spore germinates and grows into a prothallus which is the
gametophyte generation. The antheridia and the archegonia are developed on the
bottom of the prothallus. The archegonia are at the notch of the prothallus and
the antheridia are located near the tip. Fertilization occurs when outside
moisture is pre ...
|
Early Health And Medicine
... was the famous French scientest who first discovered germs, and that they were the main cause of most diseases. After Pasteur's significant discovery people began to be much more conscious of their personal hygiene. Such as, brushing their teeht and bathing more persistently. Pastuer opened the doors to a series of new remedies and discoveries. Some of these would include pasteurized milk(you can see where it received it's name), bacteria, fermentation, yeast, and rabies:to name a few. Within a year of Pasteur's remedy for rabies, he treated and cured maore than 2,000 patients.
A German pathologist named Robert Koc ...
|
Hawaiian Goose
... Park,
Mauna Loa, and Pu'u Wa'awa'a on the island of Hawaii; in Haleakala National Park
on Maui; and at the Kilauea National Wildlife Refuge, along the Na Pali coast
and outside Lihue on Kauai. Captive Nene can be seen at he Honolulu Zoo.
Designated Hawaii's State Bird on May 7, 1957, the Nene has endured a
long struggle against extinction. During the 1940s this species was almost
wiped out by laws which allowed the birds to be hunted during their winter
breeding seasons when the birds were most vulnerable. By 1957, when the Nene
was named the State Bird, rescue efforts were underway. Conservationists began
bree ...
|
Cellular Diffusion
... that determines whether it will pass through the membrane. There is also the concentration gradient, which relates to the amount of a certain substance inside the cell as opposed to outside the cell. The further down the gradient, the lower the concentration of a substance. This brings into play the processes of diffusion, osmosis, and active transport, all of which involve only small simple molecules.
Diffusion is the movement of a substance from a region of high concentration, to a region of low concentration of that substance. In other words, a movement down the concentration gradient. Osmosis is very similar to ...
|
Large Mouth Bass
... The is the most adaptable member of the bass family. It is found in every aquatic habitat from small streams the the largest resevoir, and almost everything in between. Up north the has a longer lifespan than in the south, at sixteen years old. While it may get older up north the size of the bass is larger in the south. This is so because there is more to eat.
The sexual characteristics of the bass remain the same nort and south. The spawn in the spring, when water temperatures begin to move past sixty degrees fahrenheit. The spring spawning urge in a bass is set off by both water temperature and photope ...
|
Changing Undesirable Behaviors
... day consecutively without correction and all actions were recorded to help in establishing the baseline. The total number of opportunities was fifteen a day. Every time the action occurred, the subject was immediately picked up and placed back inside the house. Day's five through eight were designed to truly concentrate on implementing the developed program with the same number of opportunities to escape as the previous four days.
RESULTS
It was determined that the subject would almost always attempt to escape from the house when it was given the opportunity during the first four days. As the days progressed, ...
|
Metabolic Costs Of Generating Force
... of the increase in metabolic rate with speed in running bipeds can be explained by changes in the time available to generate force.
The rate of force generation also explains differences in metabolic rate over the size range of birds measured. However, for a given rate of force generation, birds use on average 1.7 times more metabolic energy than quadrupeds. The rate of energy consumption for a given rate of force generation for humans is intermediate between that of birds and quadrupeds. These results support the idea that the costs of muscular force production determines the energy cost of running and s ...
|
Browse:
« prev
169
170
171
172
173
next »
|
|