Caffeine interacts with a neurotransmitter- adenosine- receptors, inhibiting the functions that adenosine would normally activate- namely, sleepy feelings. One theory behind caffeine withdrawal...
Spicy foods contain a chemical called capsaicin, which activates a receptor found in your mouth and on your tongue called a TRPV1 receptor. There is some variation in the sensitivity of these...
When you spend hours proofreading and retyping essays, you get to wondering- why do聽we refer to large letters as upper case, and small as lower case? It鈥檚 actually a remnant聽of a past where...
Bladder cancer in humans has been associated with cigarette smoking. 聽Since dogs can also develop this deadly cancer, they can serve as model for evaluating treatment methods. 聽In a study at the...
A breast cancer cell line known as MCF-7 is used by researchers around the world. 聽The name comes from the Michigan Cancer Foundation where the cell line was first established in 1973 after...
Victims of Alzheimer鈥檚 disease experience a continuous degeneration of nerve cells. Most of the nerve cells affected are responsible for releasing acetylcholine, the neurotransmitter believed to be...
Fingerprints have been used since ancient times as a method to confirm identities. Although individuals are born with a unique set of fingerprints, these unique fingerprints can disappear. The...
During the 1970鈥檚 in Moscow, Russia excimer lasers were first developed, consisting of both reactive and inert gases. When excited electrically, the mixture of these gases produces a dimer. Thus ...
Orange and red lightning above Lake Maracaibo, Venezuela produce a spectacular phenomenon that is visible for more than 500 km. This phenomenon commences one hour after dawn and lasts for 10 hours....
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