News tagged with environmental hazards
Biomedical engineers teach bacteria to count
May 28, 2009 |
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Biomedical engineers at Boston University have taught bacteria how to count. Professor James J. Collins and colleagues have wired a new sequence of genes that allow the microbes to count discrete events, opening the door ...
Researcher develop new technique for modifying plant genes
Apr 29, 2009 |
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Researchers at the University of Minnesota and Massachusetts General Hospital have used a genome engineering tool they developed to make a model crop plant herbicide-resistant without significant changes to its DNA.
Surprising new health and environmental concerns about tungsten
Jan 19, 2009 |
3.7 / 5 (9) |
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Surprising new scientific research is raising concerns about the potential health and environmental hazards of tungsten — a metal used in products ranging from bullets to light bulbs to jewelry — that scientists once thought ...
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New climate targets may not change daily life much
8 hours ago |
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(AP) -- Americans' day-to-day lives won't change noticeably if President Barack Obama achieves his newly announced goal of slashing carbon dioxide pollution by one-sixth in the next decade, experts say.
Marine ecosystems get a climate form guide
8 hours ago |
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(PhysOrg.com) -- The first-ever Australian benchmark of climate change impacts on marine ecosystems and options for adaptation is being released in Brisbane today.
First-ever blueprint of a minimal cell is more complex than expected
Nov 26, 2009 |
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What are the bare essentials of life, the indispensable ingredients required to produce a cell that can survive on its own? Can we describe the molecular anatomy of a cell, and understand how an entire organism ...
Burning coal worse for climate than clearing rain forests
Nov 26, 2009 |
2.1 / 5 (7) |
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Deforestation has had a big influence on the increase of carbon dioxide (CO2) emissions in the past three centuries, but its impact is tapering off relatively. Nowadays, the burning of fossil fuels is a more crucial factor. ...
Scientists reveal 'protector' gene behind 50-fold increase in number of bowel tumours
Nov 26, 2009 |
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(PhysOrg.com) -- Cancer Research UK scientists have shown that deleting a single gene can increase the average number of tumours in the bowel by 50-fold, according to research published in PNAS today.
Obama to plead US case at global warming summit
Nov 26, 2009 |
1.7 / 5 (6) |
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(AP) -- President Barack Obama will commit the United States to substantial cuts in greenhouse gas pollution over the next decade - despite resistance in Congress over higher costs - when he travels to a ...
'Safety valve' protects photosynthesis from too much light
Nov 25, 2009 |
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Photosynthetic organisms need to cope with a wide range of light intensities, which can change over timescales of seconds to minutes. Too much light can damage the photosynthetic machinery and cause cell death. Scientists ...
Scientists find emotion-like behaviors, regulated by dopamine, in fruit flies
Medicine & Health / Neuroscience
Nov 25, 2009 |
5 / 5 (3) |
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Scientists at the California Institute of Technology have uncovered evidence of a primitive emotion-like behavior in the fruit fly, Drosophila melanogaster. Their findings, which may be relevant to the relationship betwee ...
Ships warned about icebergs headed for New Zealand
Space & Earth / Earth Sciences
Nov 25, 2009 |
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(AP) -- Ships are on alert and maritime authorities are monitoring the movements of hundreds of menacing icebergs drifting toward New Zealand in the southern Pacific Ocean, officials said.
Etiologic factors of gastric cardiac adenocarcinoma among men in Taiwan
Nov 25, 2009 |
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The gastric cardiac adenocarcinoma (GCA) is a very rare disease. In recent decades, however, the incidence of the GCA has increased dramatically in many Western countries. An increasing trend in GCA is also observed in municipal ...
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