יום שלישי, 1 בנובמבר 2011

Examples of calculus use in medicine?

Examples of calculus use in viagra cialis online pharmacy pharmacy?

I got a question,

"I am supposed to teach my calculus class one lesson.
That lesson has to be on something that can be applied
to whatever I am hoping to major in. I am planning on
studying pre-med to become a doctor. Could you tell
me how doctors apply math learned in calculus 1?"

I suspect doctors don't actually use any calculus in their daily work with people. BUT, it is used in medical research and analysis.

For example, calculus concepts are applied in studying how medicines act in the body. I found an article called Half-life and Steady State that talks about how the patient might be taking a medication and all the same time the body is clearing the previous doses... Eventually there comes a "steady state" where the amount of "the amount of drug going in is the same as the amount of drug getting taken out."

QUOTE
Many drug effects occur primarily when the blood level of the drug is either going up or going down. When the drug reaches steady state, these effects can be either attenuated or completely absent. For those of you who are familiar with calculus, one way to understand this is that these effects only take place if there is a first derivative other than zero.

Or, from www.math.gatech.edu/~bourbaki/MapleProjects.html
we find that calculus is used to find out the rate of change of the surface area for a rapidly growing adolescent. This ties in with medicine in the fact that sometimes the drug dosage depends on the size of the individual, and the surface area is one way to measure the size of a person.
QUOTE
"This worksheet, provides a correlation between height, weight, and surface area
for humans as determined by the commonly used West Nomogram. Additionally, partial derivatives (and the chain-rule) are used to find the rate of change of the
surface area for a rapidly growing adolescent."

BIOLOGY and MEDICINE research abound with mathematical models, and calculus is an essential tool for analyzing those models. I personally have not studied these in-depth, but taking a peek in a Calculus for Biology and Medicine course syllabus from a certain community college we find that on that course the students;

QUOTE
1. Analyze allometric models.
2. Analyze models in cell diffusion.
3. Analyze models in population growth models.
4. Analyze models in population biology for interacting species.
5. Analyze models for respiration and control of respiration.
6. Analyze models for cardiac dynamics and control of heart rhythms.
7. Analyze models for neuron dynamics.
8. Analyze models in pharmacology.
9. Utilize a computer-algebra system in a model's analysis.


Calculus is simply an indispesable tool for modern science.

Tags: math, calculus

יום שבת, 29 באוקטובר 2011

Smoking and Erection Problems

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Yes, smoking can definitely affect erections and firmness of erections. Quitting smoking (if you do smoke) is one of the lifestyle changes that is always recommended by your doctor when you want to get rid of ED (erectile dysfunction) or any other problem with erections.

Nicotine constricts the blood vessels in various parts of body, thereby restricting the blood flow towards penis required to attain proper erection. Mechanism that traps blood in the penis gets impaired due to nicotine present in blood stream. Apart from diabetes, high cholesterol levels and drugs, smoking attributes to 50% increase in chances of suffering from erection problems in men in their 30’s to 40’s.

Quitting smoking can really help you overcome erection problems and enjoy more sensible living!

יום שלישי, 17 במאי 2011

Cold War Timeline

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Works Cited:
Sherman, Joseph. The Cold War. Minneapolis: Lerner Publications, 2003.

1914: Archduke Franz Ferdinand is assassinated by Gavrilo Princip in Sarajevo on June 28th. This leads to the outbreak of the first World War. It is also a direct cause of the Bolshevik Revolution in Russia and the appearance of Russia as the first communist state.
1917: The Bolshevik Revolution continues with immense chaos and violence in Russia. The Russian communist party gains control and the Union of Soviet Socialist Republics is formed along with the Red Army. Lenin tries to negotiate peace with Western nations.
1922-1928: Bolsheviks win the Russian Civil War and the Soviet Unions comes into existence. Vladmir Lenin dies from a stroke attack and Joseph Stalin takes his place.
1939: Outbreak of World War II on September 1, 1939.
1945: Discussions on the post-war conditions and intentions of America and Soviet Union take place at the Yalta Conference. US president Harry Truman announces America’s possession of nuclear arms. On August 6th, Harry Truman gives allowance for the bombing the Japanese city of Hiroshima with an atomic bomb.
1946: Civil wars are occurring around the world. China continues in the Chinese Civil War between Nationalists and Communists. Greek Civil War also rekindles between the communists and conservatives in Greece. Meanwhile, US prepares its troops around the world.
1949: In resistance to the communist expansion, the North Atlantic Treaty Organization (NATO) is founded by Belgium, Canada, Denmark, France, Iceland, Italy, Luxembourg, Holland, Norway, Portugal, UK and USA.
1951: War over Seoul. Chinese soldiers capture Seoul on January 4th, but UN forces regain control on March 14th later in the same year.
1953: Eisenhower becomes new president of USA in January. Stalin dies in March and Khrushchev becomes the successive ruler of the Soviet Communist Party.
1955: The Baghdad Pact is founded by Iran, Iraq, Pakistan, Turkey, and UK in order to resist communist expansion in the Middle East.
1961: John F. Kennedy becomes next president of USA. Soviets build the Berlin Wall to segregate East Germany and West Germany. Soviets successfully test the Tsar Bomb.
1963: Kennedy is assassinated and Lyndon B. Johnson becomes next US president.
1964: USA and Soviet leaders plan to cut back on nuclear arms. China tests its first atomic bomb later in October.
1969: Richard M. Nixon becomes president of USA. US troops are withdrawn from Vietnam.
1972: Nixon becomes first American president to visit China.
1981: Ronald Reagan becomes the next American president.
1985: Mikhael Gorbachev becomes ruling Soviet leader. On August 6th leaders around the world condole the 40th anniversary of the atomic bombing in Hiroshima.
1992: American president George H. W. Bush and president Boris Yeltsin of the Russian Federal officially announce the end of the Cold War.

יום שלישי, 3 במאי 2011

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