Wireless Microgrippers Grab Living Cells in 'Biopsy' Tests
Jan 12, 2009 |
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(PhysOrg.com) -- In experiments that pave the way for tiny mobile surgical tools activated by heat or chemicals, Johns Hopkins researchers have invented dust-particle-size devices that can be used to grab ...
Workers exposed to lead show more cognitive problems later in life
Medicine & Health / Psychology & Psychiatry
Jan 12, 2009 |
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Both the developing brain and the aging brain can suffer from lead exposure. For older people, a buildup of lead from earlier exposure may be enough to result in greater cognitive problems after age 55, according to a follow-up ...
Researcher Uses DNA Testing to Unlock Secrets of Medieval Manuscripts
Jan 12, 2009 |
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(PhysOrg.com) -- Thousands of painstakingly handwritten books produced in medieval Europe still exist today, but scholars have long struggled with questions about when and where the majority of these works originated. Now ...
'Refinery dust' reveals clues about local polluters
Jan 12, 2009 |
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Cloaked in the clouds of emissions and exhaust that hang over the city are clues that lead back to the polluting culprits, and a research team led by the University of Houston is hot on their trails.
Scientists Bring 2000 year old painted warrior to virtual live
Jan 12, 2009 |
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A 2000-year-old painted statue is being restored to her original glory by scientists from WMG at the University of Warwick, the University of Southampton, and the Herculaneum Conservation Project.
A crystal clear view of chalk formation
Jan 12, 2009 |
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(PhysOrg.com) -- It has a beautiful, but also an unpleasant side: crystallization determines the shape of precious stones, but also causes the lime scale in washing machines. How this comes about, has been ...
Study of disease risk suggests ways to avoid slaughter of Yellowstone bison
Biology /
Jan 12, 2009 |
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Last winter, government agencies killed one third of Yellowstone National Park's bison herd due to concerns about the possible spread of a livestock disease to cattle that graze in areas around the park. Such drastic measures ...
Preventing soil erosion in continuous corn
Jan 12, 2009 |
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With recent increase in the cost of energy and subsequent explorations into alternative energy sources, the increased harvest of corn residue for cellulosic ethanol production is likely in the future. This may be especially ...
Hormone therapy linked to brain shrinkage, but not lesions
Jan 12, 2009 |
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Two new studies show that commonly prescribed forms of postmenopausal hormone therapy may slightly accelerate the loss of brain tissue in women 65 and older beyond what normally occurs with aging.
New generation of salmonella-based, single dose vaccine candidates to fight infant pneumonia
Jan 12, 2009 |
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One of the major challenges in modern vaccinology is to engineer vectors that are highly infectious, yet don't cause illness. Trickier still is to ensure that such weapons against infectious disease can be safely disarmed, ...
How do cells count?
Biology /
Jan 12, 2009 |
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In the 13th January print edition of the journal Current Biology, Instituto Gubenkian de Ciencia researchers provide insight into an old mystery in cell biology, and offer up new clues to understanding cancer. Inęs Cunha ...
Researchers identify potential new weapon in battle against HIV infection
Medicine & Health / HIV & AIDS
Jan 12, 2009 |
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Researchers have discovered a potentially important new resistance factor in the battle against HIV: blood types. An international team of researchers from Canadian Blood Services, The Hospital for Sick Children (SickKids) ...
New technology needed to monitor rain forest 'tsunami'
Jan 12, 2009 |
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Human impact on tropical forest ecosystems has reached a "tsunami" stage, say scientists, and will require a new generation of sophisticated remote-sensing technology to monitor the changes. Speaking at a January 12, 2009 ...
Elderly may have higher blood pressure in cold weather
Jan 12, 2009 |
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Outdoor temperature and blood pressure appear to be correlated in the elderly, with higher rates of hypertension in cooler months, according to a report in the January 12 issue of Archives of Internal Medicine.
Job strain associated with stroke in Japanese men
Jan 12, 2009 |
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Japanese men in high-stress jobs appear to have an increased risk of stroke compared with those in less demanding positions, according to a report in the January 12 issue of Archives of Internal Medicine.
