Minggu, 21 Agustus 2011

ScienceDaily Environment Headlines -- for Sunday, August 21, 2011

ScienceDaily Environment Headlines

for Sunday, August 21, 2011

Welcome to another edition of ScienceDaily's email newsletter. You can change your subscription options or unsubscribe at any time.


Parasite uses the power of attraction to trick rats into becoming cat food (August 20, 2011) -- Rats infected with the parasite Toxoplasma seem to lose their fear of cats -- or at least cat urine. Now researchers have discovered the brains of those infected, fearless male rats show activity in the region that normally triggers a mating response when encountering a female rat. But that does not mean it's love, as Toxoplasma just wants the rat to be eaten by a cat, so the parasite can reproduce in the cat's intestines. ... > full story

Under-reported greenhouse gas statistics? Sketchy emission reports revealed by Swiss measurements (August 20, 2011) -- Fluorinated hydrocarbons are potent greenhouse gases, emission of which must be reduced under the Kyoto Protocol. If you rely on the official reports of the participating countries, the output of trifluoromethane (HFC-23) in Western Europe is indeed significantly decreasing. However, pollutant measurements carried out by researchers in Switzerland now reveal that several countries under-report their emissions. For instance, Italy emits 10 to 20 times more HFC-23 than it officially reports. ... > full story

Kinder, gentler cell capture method could aid medical research (August 20, 2011) -- A research team has come up with a potential solution to a two-pronged problem in medical research: How to capture cells on a particular spot on a surface using electric fields and keep them alive long enough to run experiments on them. ... > full story

Growth of cities endangers global environment, according to new analysis (August 20, 2011) -- The explosive growth of cities worldwide over the next two decades poses significant risks to people and the global environment, according to a new meta-analysis. ... > full story

Spoilt food soon a thing of the past? (August 20, 2011) -- Unwanted bacteria, yeasts and molds can cause major problems for the food industry as well as consumers. Researchers have now developed new methods to identify potential sources of contamination. Using a spectrometer, the researchers are able to detect undesirable microorganisms in finished products and trace them back to the various steps in the production process. ... > full story

Lessons learned from the two worst oils spills in US history: Microbes matter (August 19, 2011) -- One year after the BP Deepwater Horizon oil spill in the Gulf of Mexico and two decades after the Exxon Valdez spill in Alaska's Prince William Sound, the scientific lesson is clear -- microbes matter! Despite vast differences in the ecosystems and circumstances of these two worst oil spills in US history, oil-degrading microorganisms played a significant role in reducing the overall environmental impact of both spills, scientists report. ... > full story

Education leaders call for radical transformation in graduate biomedical curriculum (August 19, 2011) -- Leaders in biomedical education are calling for a radical new approach to post-graduate training in the life sciences to address significant challenges, including an avalanche of new discoveries in the last decade and the need to transcend traditional departmental boundaries to understand biological processes at multiple levels. ... > full story

Molecular scientists develop color-changing stress sensor (August 19, 2011) -- It is helpful -- even life-saving -- to have a warning sign before a structural system fails, but, when the system is only a few nanometers in size, having a sign that's easy to read is a challenge. Now, thanks to a clever bit of molecular design by bioengineers and chemists, such warning can come in the form of a simple color change. ... > full story

Micro-organisms are 'invisible' to the immune system (August 19, 2011) -- That micro-organisms have a great capacity to vary their surface structure is well known. It is one of the reasons why it is so difficult to develop vaccines against HIV and malaria, and why new influenza vaccines have to be produced every year. But it seems that these micro-organisms are also able to completely avoid activating a strong immune response in the person attacked. ... > full story

Realistic simulation of ion flux through membrane sheds light on antibiotic resistance (August 19, 2011) -- A new study describes an innovative new computational model that realistically simulates the complex conditions found in biological systems and allows for a more accurate look at ion channel function at the level of individual atoms. The research provides a remarkably detailed look at the function of a bacterial channel that kills brain cells in people with bacterial meningitis and provides insight into mechanisms that underlie deadly antibiotic resistance. ... > full story

First kangaroo genome sequence reveals possible gene responsible for characteristic hop (August 19, 2011) -- Kangaroos form an important niche in the tree of life, but until now their DNA had never been sequenced. In a new article, an international consortium of researchers present the first kangaroo genome sequence -- that of the tammar wallaby species -- and find hidden in their data the gene that may well be responsible for the kangaroo's characteristic hop. ... > full story

College students not eating enough fruits and veggies, study finds (August 19, 2011) -- College students aren't eating enough fruits and vegetables -- in fact, a new study shows students aren't even eating one serving per day, far from the recommended five daily servings. The study, which surveyed the eating habits of 582 college students, compares male and female students, but found that both were not getting the proper amount of fruits and vegetables. ... > full story


Copyright 1995-2010 © ScienceDaily LLC. All rights reserved. Terms of use.



This message was sent to ranggomas.techdeck@blogger.com from:

ScienceDaily | 1 Research Court, Suite 450 | Rockville, MD 20850

Email Marketing by iContact - Try It Free!

Update Profile  |  Forward To a Friend

0 komentar:

Posting Komentar

Twitter Delicious Facebook Digg Stumbleupon Favorites More