The Effects Of Altitude On Human Physiology
.... elevations and then observe
the important changes that occur in the internal environment of the body in
response.
HIGH ALTITUDE
In discussing altitude change and its effect on the body mountaineers
generally define altitude according to the scale of high (8,000 - 12,000 feet),
very high (12,000 - 18,000 feet), and extremely high (18,000+ feet), (Hubble,
1995). A common misperception of the change in external environment with
increased altitude is that there is decreased oxygen. This is not correc .....
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The Fabry Disease
.... - outer layer) spaces filled with blood.
Places (vessel wall) where there is no telangiectasis are filled with deposits
of glycolipids. These deposits are also found in the heart, muscles, renal
tubules and glomeruli, central nervous system, spleen, liver, bone marrow, lymph
nodes and cornea. Retarded growth, delayed puberty and ocular abnormalities are
also common symptoms. These symptoms are mostly fond in males because they
display full-blown syndrome, while females displays a partial form.
Diagn .....
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The Genetics Of Violence
.... studies are beginning down a long road of finding the
hereditary basis for impulsivity. While these studies continue to search for the
genetic source of aggression, child testing programs, drug manufacturers, civil
rights activists, lawyers, and anxious citizens await the resulting testimony of
the scientists. The social implications of the genetic search for aggressive
tendency is seen by some as a great step forward, by others as a dangerous power
with the ability to give birth to another Holocaust, a .....
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The Human Brain Vs. The Computer
.... basic
calculation. The computer has the capability to evaluate problems that man can
hardly even imagine, let alone approach. Even if a man can calculate the same
problems as a computer, the computer can do it far faster than he can possibly
achieve. Let us go one step further. Say this man can calculate as fast as a
computer, can he, as the computer can, achieve a 100% rate of accuracy in his
calculation? Why do we now go over the human data entry into a computer when a
mistake is noticed instead of .....
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McDonaldization: Health In A Fastfood Society
.... control, efficiency, and quantification are obvious.
Quantification is easily seen when you first step into a hospital
waiting room and a huge sign tells you a number before you are even able to
speak to anyone. After waiting a while your number is called, you must give
your health card number to the receptionist before continuing. You are then
given a file number, which is your only identity for the time you spend within
the hospital environment. After seeing the doctor you may com .....
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Kidneys
.... reveals two distinct areas: the cortex- a
dark band along the outer border, about one centimeter in thickness, and the
inner medulla. The medulla is divided into 8 to 18 cone-shaped masses of tissue
named renal pyramids. The apex of each pyramid, the papilla, extends into the
renal pelvis, through which urine is released from the kidney tissue. The
cortex arches over the bases of the pyramids (cortical arches) and extends down
between each pyramid as the renal columns.
Urine passes through the body in .....
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Nature / Nurture Or Both !
.... combination. Here below, I will
endeavour to expose the leading theories dealing with the question of nature vs.
nurture. I will also try to present the third, new-emerging approach meant to
solve the mystery of “ What is it that makes us who we are?”
“Our genes made us. We animals exist for their preservation and are
nothing more than their throwaway survival machines.” This is what Richard
Darwin states in his book: The Selfish Gene. In his international best seller
book, he argues that we are merel .....
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Paranoid Personality Disorders
.... of with the disorder also tend to bear their grudges and unwilling
to forgive. They nurture their grudges and anger, which over time, gives them
more of a sense that it is the outside world which the problem, not themselves.
At times, these individuals may also conjure up flamboyant illusions to confirm
their behavior toward others.
These feelings are also carried out towards family as well. One example
could be as if a person with this personality disorder had a spouse or sexual
partner, this indiv .....
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The Lymphatic System
.... cells
that make up the walls of the capillaries are not tightly joined. Filament
anchor the endothelium cells so they can expand. Pathogens can spread through
the body through the lymphatic stream.
There are many cells in the lymphoid tissue. One type is lymphocytes,
which are reffered to often as T or B cells. Plasma cells are antibody-producing
offspring of B cells. Macrophages are phagocytes that help out with immunity.
Reticular cells are cells that form the lymphoid tissue stroma. Thes cells a .....
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The Plague
.... Since then there have been around 16 cases
a year in the United States, most connected with rock squirrels and its common
flea Oropsylla montana.
The most dangerous type of plague is pneumonic. It can be spread through aerosol
droplets released through coughs, sneezes, or through fluid contact. It may also
become a secondary result of a case of untreated bubonic or septicemic plague.
Although not as common as the bubonic strain, it is more deadly. It has an
untreated mortality rate on nearly 100%, as co .....
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The Relationship Between Food Concentration, And Respiratory Activity
.... test tubes
were serially diluted, so that the sucrose concentration ranged from 30% to
0.12%.
The hypothesis in this expriment was that the most respiratory activity
would take place with 60% sucrose concentration. Since yeast fermentation
requires sucrose and water, aproximately equal proportions of both would yield
to the most respiratory activity.
Once the sucrose concentration was serially cut to the desired level,
the experimenter added 5 ml of yeast suspension to each one of the ten test
t .....
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Stress
.... Furthermore you may feel more criticised by
others, become more pessimistic, cynical, or resentful than usual. Things you
normally look forward to may seem like a burden.
A lot of people are not aware of being under stress. Some are frequently under
so much stress that they assume the feeling is normal.
Pros
By hearing the word "stress" most people think of something unpleasant and bad.
But that is only conditionally true. Stress has also several positive aspects:
- A lot of people (students!) take .....
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The Results Of Aging
.... Retirement Communities.......................................6
Life-care Facilities.........................................6
House Sharing................................................6
Group Homes..................................................7
Low-cost, Government Subsidized Housing......................7
Foster Care..................................................7
Nursing Homes................................................7
CONCLUSION .....
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Bipolar Affective Disorder
.... Some of the symptoms of a depressive
episode include anhedonia, disturbances in sleep and appetite, psycomoter
retardation, loss of energy, feelings of guilt and worthlessness, guilt,
difficulty thinking, indecision, and recurrent thoughts of death and suicide.
The manic episodes are characterized by elevated or irritable mood, increased
energy, decreased need for sleep, poor judgment and insight, and often reckless
or irresponsible behavior (Hollandsworth, Jr. 1990 ).
Bipolar affective disorder .....
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The Worlds Fight Against Microbes
.... these viruses are magnified several thousand
times by an electron microscope they have the appearance of long filaments or
threads. Filoviruses can cause hemorrhagic fever in humans and animals, and
because of this they are extremely hazardous. Laboratory studies of these
viruses must be carried out in special maximum containment facilities, such as
the Centers for Disease Control (CDC) in Atlanta, Georgia and the United States
Army Medical Research Institute of Infectious Diseases (USAMRIID), at Fort
Det .....
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