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Jeffrey Willett
Nov 2, 2009
The Science of Tickling
Tickling may induce pleasurable sensations in some people, and outright fear in others. This pleasure-pain duality affects how the body manages stress.
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Nov 2, 2009
Tickling – Perception or Physiology?
Although tickling is a physical stimuli passed along neural pathways, how the brain perceives tickling seems almost as important as the reflex sensation itself.
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Nov 2, 2009
The Physiology of Tickling
The science of tickling is complex. The brain processes pleasant tickle stimuli along with sensations of pain from other neural pathways.
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Oct 17, 2009
Broken Heart Syndrome
Sweetest Day 2009 is a time to show appreciation for loved ones. But when love is lost, the shock induces severe medical and chemical effects on the heart and body.
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Oct 7, 2009
XYY Syndrome
Genetic research has often been used to find causes of disease. But what happens when a genetic abnormality is linked to criminal behavior?
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Sep 16, 2009
Jehovah's Witnesses and Blood Transfusions
Bioethics deals with moral issues in medicine, but sometimes doing what is right creates more problems for the physician-patient relationship than doing nothing at all.
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Biology (general)
Nov 11, 2009
Who Discovered DNA?
By:
Kenneth Rosen
Information about DNA abounds today, but few are aware that it was originally discovered in the 1860s, many years before its biological function was ever determined.
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Nov 7, 2009
Functions and Structure of Ribosomes
By:
Bridget Coila
Ribosomes, which can be free floating in the cell or attached to endoplasmic reticulum, carry out the steps of protein synthesis in the cell.
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Nov 3, 2009
What is the Cell Wall of a Plant Like?
By:
Anay Bose
The cell wall is a rigid layer of polysaccharides enclosing the intercellular substance of a cell. It maintains the shape of the cell and serves as a protective barrier.
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Oct 27, 2009
How Bioluminescence and Chemiluminescence Work
By:
Bridget Coila
Animals, plants, fungi and microorganisms all have members who produce bioluminescence, a natural glow in the dark mechanism that creates light from a chemical reaction.
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Oct 25, 2009
Mechanisms Used by Extremophiles
By:
Bridget Coila
Extremophiles come in many different types, preferring widely varied conditions. Often existence in extreme environments requires extreme life adaptations.
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Oct 22, 2009
Volunteer Opportunities in Biology
By:
Bridget Coila
Amateur biologists from current students to adults long out of school can find ways to participate in the science of biology as a volunteer.
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Oct 20, 2009
Cellular Respiration Explained
By:
Dr. David Warmflash
Cellular respiration is the biochemical breakdown of a chemical substrate, such as glucose sugar, or fat, through oxidation.
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