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New tool in the fight against mosquito-borne disease: A microbial 'mosquito net'
Dec 24, 2009 |
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Earlier this year, researchers showed that they could cut the lives of disease-carrying mosquitoes in half by infecting them with a bacterium they took from fruit flies. Now, a new report in the December 24th issue of Cell, ...
Researchers reveal secrets of duck sex: It's all screwed up
Dec 23, 2009 |
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Female ducks have evolved an intriguing way to avoid becoming impregnated by undesirable but aggressive males endowed with large corkscrew-shaped penises: vaginas with clockwise spirals that thwart oppositely ...
New human reproductive hormone could lead to novel contraceptives
Dec 22, 2009 |
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(PhysOrg.com) -- Nearly 10 years after the discovery that birds make a hormone that suppresses reproduction, University of California, Berkeley, neuroscientists have established that humans make it too, opening ...
Largest study of PGD children shows embryo biopsy is safe for singleton pregnancies
Dec 22, 2009 |
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The largest and longest running study of children born after preimplantation genetic diagnosis and screening has shown that embryo biopsy does not adversely affect the health of babies born as the result of a subsequent singleton ...
Mexico's conch shells yield clues into effects of warming
Dec 22, 2009 |
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Divers plumb the turquoise depths of ocean waters some 100 kilometers south of this vacation paradise, in search of the distinctive queen conch shell prized by vacationers and souvenir-seekers.
Meddling in mosquitoes' sex lives could help stop the spread of malaria, says study
Dec 22, 2009 |
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(PhysOrg.com) -- Stopping male mosquitoes from sealing their sperm inside females with a 'mating plug' could prevent mosquitoes from reproducing, and offer a potential new way to combat malaria, say scientists ...
How the daisy got its spots... and why
Dec 18, 2009 |
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Dark spots on flower petals are common across many angiosperm plant families and occur on flowers such as some lilies, orchids, and daisies. Much research has been done on the physiological and behavioral ...
New research explains orchids' sexual trickery
Dec 17, 2009 |
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A new study reveals the reason why orchids use sexual trickery to lure insect pollinators. The study, published in the January issue of The American Naturalist, finds that sexual deception in orchids leads to a more effici ...
Almost two-thirds of pregnant women believe they are regularly exposed to physical risk at work
Dec 17, 2009 |
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A new study shows the employment and sociodemographic characteristics involved in the exposure of pregnant women to workplace hazards. Of these, 56% say they often work standing up or have to lift heavy objects, ...
Soap opera in the marsh: Coots foil nest invaders, reject impostors
Dec 16, 2009 |
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(PhysOrg.com) -- The American coot is a drab, seemingly unremarkable marsh bird common throughout North America. But its reproductive life is full of deception and violence.
Netherlands to slaughter more animals in Q fever epidemic
Dec 16, 2009 |
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The Netherlands stepped up measures Wednesday against the world's biggest Q fever epidemic that has killed 10 humans, by ordering the slaughter of over 30,000 animals, a press release said.
Carrier screening associated with decrease in incidence of cystic fibrosis
Dec 16, 2009 |
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An increase in the number of screened carriers for cystic fibrosis (CF) was associated with a decrease in the number of children born with CF in northeast Italy, according to a study in the December 16 issue of JAMA.
Biologist Shows Female Birds of a Feather Compete Together
Dec 15, 2009 |
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(PhysOrg.com) -- With its flamboyantly decorated plumage, the peacock is a classic example of how males among many bird species are more visually eye-catching than their female partners. But new research, ...
Researchers find reproductive germ cells survive and thrive in transplants, even among species
Dec 15, 2009 |
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Reproductive researchers from the University of Pennsylvania and The Children's Hospital of Philadelphia have succeeded in isolating and transplanting pure populations of the immature cells that enable male ...
Math goes viral: Researchers make math and science real for high-school students
Other Sciences / Social Sciences
Dec 14, 2009 |
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At least a dozen Alberta high-school calculus classrooms were exposed to the West Nile virus recently.
