A research team has developed the first complete map of the Milky Way galaxy’s spiral arms. The map shows two prominent, symmetric spiral arms in the inner part of the galaxy. The arms extend into the outer galaxy where they branch into four spiral arms.
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Most people know that breast cancer is the most common cancer among women affecting about 1 in 8 women in the United States and the second leading cause of cancer death in women, after lung cancer. Seventy-five to 80 percent of all breast cancer tumors are estrogen-fed. A key estrogen-related breakthrough has been discovered by [...]
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Researchers dusted wild deer mice with fluorescent pink, blue, green, yellow and orange talcum powders to show which rodents most often fought or mated with others and thus were most likely to spread deadly hantavirus. The study identified bigger, older mice as the culprits.
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A recent international study fails to support the common belief that the number of calories burned in physical activity is a key factor in rising rates of obesity.
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New research shows that rapidly warming climate is likely to seriously alter crop yields in the tropics and subtropics by the end of this century and, without adaptation, will leave half the world’s population facing serious food shortages.
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Women who smoke during pregnancy risk delivering aggressive kids according to a new Canada-Netherlands study published in the journal Development and Psychopathology. While previous studies have shown that smoking during gestation causes low birth weight, this research shows mothers who light up during pregnancy can predispose their offspring to an additional risk: violent behavior.
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When there is a threat of disease during pregnancy, mothers produce less aggressive sons with more efficient immune systems, researchers have discovered. The new study provides the first evidence for a transgenerational effect on immune response based on environmental cues — with maternal perception of disease risk in the immediate environment potentially determining offspring disease [...]
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Scientists have identified the structure of a key component of the bacteria behind such diseases as whooping cough, peptic stomach ulcers and Legionnaires’ disease. The research sheds light on how antibiotic resistance genes spread from one bacterium to another. The research may help scientists develop novel treatments for these diseases and novel ways to curtail [...]
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Brown dwarfs, objects that are less massive than stars but larger than planets, just got more elusive, based on a study of 233 nearby multiple-star systems by NASA’s Hubble Space Telescope. Hubble found only two brown dwarfs as companions to normal stars. This means the so-called “brown dwarf desert” (the absence of brown dwarfs around [...]
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Nicotine gum has been in use for over 20 years to help smokers quit abruptly yet close to two-thirds of smokers report that they would prefer to quit gradually. Researchers have now found that smokers who are trying to quit gradually can also be helped by nicotine gum.
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