Challenging conventional wisdom, new research finds that the number of sunspots provides an incomplete measure of changes in the Sun’s impact on Earth over the course of the 11-year solar cycle. The Sun can bombard Earth with high-speed streams of energy even in the virtual absence of sunspots.
The discovery of an additional role for a key molecule in our bodies provides a further step in world-wide efforts to develop genetic regulation aimed at controlling many diseases, including AIDS and various types of cancers.
Researchers are reporting new evidence that green tea — one of the most popular beverages consumed worldwide and now available as a dietary supplement — may help improve bone health. They found that the tea contains a group of chemicals that can stimulate bone formation and help slow its breakdown.
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Researchers have taken an important step in understanding the role of stem cells in development of liver cancer. Using a unique approach that involves study of individual cells, the team has demonstrated for the first time a population of cancer stem cells in the liver prior to tumor formation.
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Scientists are reporting development of a new method for screening molecules and predicting how certain materials, ranging from chemicals used in carpeting to electronics, will contribute to global warming.
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When it comes to writing the pen apparently is mightier than the computer keyboard. Second, fourth and sixth grade children with and without handwriting disabilities were able to write more and faster when using a pen than a keyboard to compose essays, according to new research.
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A pair of unusual stars known as DI Herculis has confounded astronomers for three decades, but new observations have provided data that they say solve the mystery once and for all.
In mice that are missing a protein found only in the brain, neural signals “go crazy,” leaving the animals with epileptic seizures from a young age, researchers have found. Their study details what it is that happens when the protein encoded by plasticity related gene-1 gets lost, revealing an important fine-tuning mechanism for brain function.
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While developing a more efficient, safer way to extract venom, researchers noticed the venom delivered by an isolated population of Florida cottonmouth snakes may be changing in response to their diet.
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A new analysis suggests the importance of ensuring optimal dietary intakes of vitamin K to prevent age-related conditions such as bone fragility, arterial and kidney calcification, cardiovascular disease, and possibly cancer. Vitamin K is concentrated in dark green plants such as spinach or Swiss chard, and is either not present or present in only small [...]
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