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MIT researchers have discovered that certain photosynthetic ocean bacteria need to beware of viruses bearing gifts: These viruses are really con artists carrying genetic material taken from their previous bacterial hosts that tricks the new host into using its own machinery to activate the genes, a process never before documented in any virus-bacteria relationship.

Asian women who consumed an average of 200 milligrams or more of caffeine a day—the equivalent of roughly two cups of coffee—had elevated estrogen levels when compared to women who consumed less, according to a study of reproductive age women by researchers at the National Institutes of Health and other institutions.

It has been known for some time that house mice (Mus musculus) produce ultrasonic vocalizations (USVs) during courtship but it has generally been assumed that these are no more than squeaks. However, recent spectrographic analyses have revealed that USVs are complex and show features of song. Although the vocalizations are inaudible to human ears, when playbacks of recorded songs are slowe

In one of the largest-ever analyses of lifetime risks for cardiovascular disease (CVD), researchers have found that middle-aged adults who have one or more elevated traditional risk factors for CVD, such as high blood pressure, have a substantially greater chance of having a major CVD event, such as heart attack or stroke, during their remaining lifetime than people with optimal levels of risk fac
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The overall prevalence of oral human papillomavirus (HPV) infection is approximately 7 percent among men and women ages 14 to 69 years in the United States, while the prevalence among men is higher than among women, according to a study appearing in JAMA. The study is being released early online to coincide with its presentation at the Multidisciplinary Head and Neck Cancer Sympos

Limiting certain essential nutrients for several days before surgery—either protein or amino acids—may reduce the risk of serious surgical complications such as heart attack or stroke, according to a new Harvard School of Public Health (HSPH) study.

The technique builds on previous research in which microbubbles were used to improve the way algae is cultivated.

Ovarian cancer is a major cause of death worldwide. Approximately 25,000 women will be diagnosed with ovarian cancer this year and 15,000 women will die from it in the United States alone. The novel anti-cancer drug diindolylmethane (DIM) has been shown in laboratory to inhibit the growth of ovarian cancer cells. New research published in BioMed Central's open access journal BMC Medicine ha

Researchers in the US have, for the first time, cloaked a three-dimensional object standing in free space, bringing the much-talked-about invisibility cloak one step closer to reality.

Tumor-targeted bioluminescent bacteria have been shown for the first time to provide accurate 3D images of tumors in mice, further advancing the potential for targeted cancer drug delivery, according to a study published in the Jan. 25 issue of the online journal PLoS ONE.

The odds of a major depressive episode are more than double for those working 11 or more hours a day compared to those working seven to eight hours a day, according to a report is published in the Jan. 25 issue of the online journal PLoS ONE.
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A TB strain that defies all drugs has infected 12 people in Mumbai. Each may have infected dozens of others
The glow of artificial lights marks the spot where Somali pirates stash their riches. The knowledge could suggest ways of undermining them
See a "fish" without a face, "dancing" feather stars, and huge mussels—all found during recent surveys of Scottish marine life.
Ion Torrent introduced its new tabletop sequencer at CES this week. Thanks to advances in chemistry and software, researchers can soon sequence a human genome for $1,000 in a day.
Women undergoing in-vitro fertilization should have only one or two embryos transferred during the process, depending on their age, says a study published Wednesday in the British medical journal The Lancet. Transferring three or more embryos during any IVF cycle should be avoided when possible, researchers say.
Tests of an Australian lizard raise the possibility that climate change could make some reptiles smarter.
A University of Connecticut researcher known for his work on red wine's benefits to cardiovascular health falsified his data in more than 100 instances and nearly a dozen scientific journals are being warned, officials said Wednesday.
For the first time in 45 years, homicide dropped out of the top 15 causes of death in the United States in 2010, according to a new government analysis of mortality trends.
Hundreds of thousands of juvenile land crabs are being threatened by a fuel spill from a cargo ship in the Indian Ocean
Are the Chinese authorities finally going to get a grip on the proliferation of unproven stem cell treatments being offered by clinics in the country?
The ferocious predator had arms that were equal parts Popeye and Barbie.
Until recently, astronomers searching for signals from intelligent aliens have had to scan the heavens blindly
Company plans to hold a special education-focused event in New York City next week
What unusually mild temperatures do -- and don't -- tell us about climate change
The failure of a Russian space probe leads to charges of sabotage
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