Today’s Scandinavians are not descended from the people who came to Scandinavia at the conclusion of the last ice age but, apparently, from a population that arrived later, concurrently with the introduction of agriculture. This is one conclusion of a new study straddling the borderline between genetics and archaeology.
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Chronic sleep deprivation in a mouse model of Alzheimer’s disease makes Alzheimer’s brain plaques appear earlier and more often, researchers report. They also found that orexin, a protein that helps regulate the sleep cycle, appears to be directly involved in the increase.
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Since the late 1970s scientists have studied the fascinating annual migration of monarch butterflies from across eastern North America to a single location in Mexico. Neurobiologists have now found that a key mechanism that helps steer the butterflies to their ultimate destination resides not in the insects’ brains, as previously thought, but in their antennae, [...]
Diabetes prevalence is highest in the Southern and Appalachian states and lowest in the Midwest and the Northeast of America. Researchers have used two public data sources to investigate the prevalence of diagnosed and undiagnosed diabetes mellitus at the State level.
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Researchers have figured out how to produce a less expensive shape-shifting “memory” foam, which could lead to more widespread applications of the material, such as in surgical positioning tools and valve mechanisms. They have created easily processable polycrystalline foams of a nickel-manganese-gallium alloy that changes shape when exposed to a magnetic field. These shape-changing properties [...]
Hummer drivers believe they are defending America’s frontier lifestyle against anti-American critics, according to a new study.
Continue reading about Hummer Owners Claim Moral High Ground To Excuse Overconsumption, Study Finds
Scientists at the US Department of Energy’s Lawrence Berkeley National Laboratory have confirmed the production of the superheavy element 114, ten years after a group at the Joint Institute for Nuclear Research in Dubna, Russia, first claimed to have made it. The search for 114 has long been a key part of the quest for [...]
A comparison of breast milk samples from Denmark and Finland revealed a significant difference in environmental chemicals which have previously been implicated in testicular cancer or in adversely affecting development of the fetal testis in humans and animals.
Children who are spanked have lower IQs worldwide, including in the United States, according to groundbreaking new research.
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For the first time researchers have shown that by inhibiting the action of an enzyme called TAK-1, it is possible to make pancreatic cancer cells sensitive to chemotherapy, opening the way for the development of a new drug to treat the disease.