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377 articles from THURSDAY 2.9.2010
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THURSDAY 2. SEPTEMBER, 2010
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23:58
BP removes cap from Gulf well (Reuters)
Reuters - BP Plc said it removed a cap from equipment atop its ruptured Gulf of Mexico oil well on Thursday, the first of several steps in advance of plugging the leak for good. -
23:56
Photos: Africa's Disappearing Damselflies, Fish, and Wildflowers
Dams, wetland destruction, and overfishing threaten to wipe out more than 20 percent of Africa's freshwater species, many unique to the continent.
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23:54
Report Says Heat, Not Smart Meters, Hiked Bills
After Pacific Gas & Electric, the giant California utility, began installing smart meters in the state's Central Valley, the company was swamped with complaints from residents that their utility bills had spiked. But an independent review of the smart meters released Thursday found that the devices were functioning properly and attributed the high charges to a heat wave last year that coincided with their installation as well as poor customer service by P.G.&.E.
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23:48
AP - Pushed by an ill-timed trough of low pressure, Hurricane Earl is heading uncomfortably close to an area relatively few hurricanes tend to go: the Northeast coastline.
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23:36Though expected to only graze the U.S. coast, Hurricane Earl is the first of many intense storms that could menace the U.S. East Coast this season, one expert says.
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23:33The head of the review of the Intergovernmental Panel on Climate Change weighs in on the panel's leadership and flaws in its treatment of uncertainty.
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23:33SPACE.com - A new survey of asteroids near Earth by a NASA space telescope has found a much wider variety of the space rocks than previously thought, with some shiny and bright while others are dark and dull.
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23:17
AP - The recipient of a rare double hand transplant says he feels "fantastic" and can wiggle fingers on both his new hands.
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23:15
Yellowstone Hot Spot Shreds Ancient Pacific Ocean
A new study has found that the mantle plume that feeds Yellowstone's famous geysers is even more powerful than anyone ever thought. -
23:04Tibet's high-altitude meadows disappear as global warming and overgrazing accelerate desertification. "Once the grasslands are destroyed, they rarely come back," a Chinese official says.
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22:54
Solar Probe+ to Plunge Directly … to Sun's Atmosphere
NASA's daring plan to visit the sun took a giant leap forward today with the selection of five key science investigations for the Solar Probe+ spacecraft. -
22:50LiveScience.com - Three swirling storms are roaring across the Atlantic with nervous East Coast residents keeping a close eye on the conveyor belt of tropical activity as hurricane season enters its busiest time.
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22:47AP - A federal judge in Washington, D.C., has ruled the U.S. Fish and Wildlife Service must revise a Bush administration recovery plan for the northern spotted owl.
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22:32
Fertility study on mice eggs raise hope for older mothers
UK research identifying loss of key protein in mice eggs is seen as a breakthrough that may help prevent birth defects
Scientists have made a breakthrough in understanding why older women become less fertile, suffer a miscarriage or have a baby with Down's syndrome.
The discovery could ultimately lead to treatments that would increase the chances of a successful pregnancy for growing numbers of would-be mothers in their late 30s and early 40s.
Researchers led by Dr Mary Herbert, an expert in reproductive biology at Newcastle University's Institute for Ageing and Health, have identified why some older women produce abnormal eggs, according to findings published in the journal Current Biology.
It has been known for a long time that would-be mothers who are nearing the end of their fertility are at higher risk than usual of having eggs that are affected by chromosomal abnormalities, but the underlying cause has been unclear.
The new study has identified problems arising from a woman's declining stock of proteins called Cohesins, which act as binding agents to hold chromosomes together by keeping them inside a ring. They are vital to ensure that chromosomes split evenly when cells divide.
Women's supplies of Cohesins fall as they age, Herbert and her colleagues discovered. Tests on eggs taken from both young and old mice indicated that the amount of Cohesins in women's bodies declines after their mid-30s.
When that happens it means that chromosomes are less tightly held together and they are therefore more likely to result in defective eggs, which can cause problems such as miscarriage and Down's syndrome.
Every cell in the human body, apart from eggs and sperm, contains two copies of each of the body's 23 chromosomes. Sperm and eggs must lose one copy each as they prepare for fertilisation. That process involves a complicated form of cell division.
This problem is compounded with eggs, because the attachments that hold chromosomes together have to be maintained by Cohesins until the egg divides just before ovulation.
When Herbert's team studied chromosomes during division in the egg, they found that the lower levels of Cohesin in eggs in older females led to some chromosomes becoming trapped and unable to divide properly.
"Reproductive fitness in women declines dramatically from the mid-30s onwards. Our findings point to Cohesin being a major culprit in this", said Herbert. More work was needed to understand why Cohesin declines over women's reproductive years, and such knowledge could lead to ways being developed to stop that loss from occurring.
Dr Peter Bowen-Simpkins, the medical director of the London Women's Clinic network of private fertility clinics and spokesman for the Royal College of Obstetricians and Gynaecologists, said the study was "very exciting" and could lead to real improvements in older women's chances of having children.
"This breakthrough could mean the difference between success and failure – them having a baby or not – for the fast-growing number of women who are trying to conceive after their late 30s," he added.
guardian.co.uk © Guardian News & Media Limited 2010 | Use of this content is subject to our Terms & Conditions | More Feeds -
22:23
Study: Brain Exercises Delay, But Can't Prevent, Dementia
Contrary to doctors' advice to "use it or lose it," a new study finds that brain-stimulating exercises may fend off dementia -- but at a cost
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22:23
Chrome update marks Web browser's second birthday
Google released an improved version of Chrome on Thursday as the Internet titan's Web browser turned two years old. -
22:23(PhysOrg.com) -- A failure to use large international sample groups when searching for the genetic basis of common diseases is contributing to a lack of knowledge about the true frequency of illnesses across populations, according to an Australian National University researcher.
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22:23Elpida Memory and Spansion today announced they have created the industry's first charge-trapping 1.8 V, 4-gigabit SLC (Single Level Cell) NAND Flash memory. This NAND memory, based on Spansion's MirrorBit charge-trapping technology, is being produced at Elpida's Hiroshima factory. The advanced technical expertise and strong cooperation of the two companies has made it possible to develop and manufacture the world's first charge-trapping NAND Flash memory.
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22:23After declining for the first time since the end of World War II, Florida`s population grew once again last year, a hopeful yet tentative sign that the worst of the recession may have passed, according to the latest preliminary population estimates from the University of Florida.
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22:23Using two of the planet's largest, creative online communities -- World of Warcraft gamers and Etsy artists -- as their laboratory, two Indiana University Bloomington researchers hope to understand how the inner workings of such massive, networked collaborations could benefit scientists, corporations and the very IT designers who facilitated the success of the two online communities.
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22:23(PhysOrg.com) -- More than half of laboratory mice with human non-Hodgkin's lymphoma are cured by a treatment involving just two monoclonal antibodies, according to a new study.
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22:23(PhysOrg.com) -- NASA has unveiled NASA App HD, a new mobile application designed for the iPad.
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22:23Clinton Parker, a senior at Julian High School, worked quietly at his computer in August as the clicks of mice from more than a dozen students punctured the air of an otherwise silent computer lab.
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22:23In a first person paper published in the August 27, 2010 issue of Childhood Obesity, Dr. Melinda Sothern, Director of Health Promotion and Professor of Public Health at LSU Health Sciences Center New Orleans, provides three ways to de-program the 1950s obesity trinity underlying the current obesity epidemic in the United States and protect future generations from its health consequences.
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22:23EU-funded scientists have discovered that a mutated protein inherent in Huntington's disease (HD) performs an unforeseen role in neurogenesis. The finding could lead to a better understanding of HD, an inherited neurodegenerative disorder that is characterised by severe psychiatric, cognitive and motor defects, and neuronal death in the brain.
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