International team of scientists finds adaptations to stress in oyster genome
When it comes to stress, oysters know how to deal. The tough-shelled mollusks can survive temperature fluctuations, toxic metals and exposure to air, and a new study of their genetic makeup is helping to explain how.
An international team of scientists, including the University of Delaware’s Patrick M. Gaffney, professor of marine biosciences, sequenced the genome of the Pacific oyster, Crassostrea gigas, in a Naturepaper published on Sept. 19. (more…)
Whether you’re a new blogger trying to gain some recognition for your blog or a seasoned veteran looking for something new to do, guest posting for other bloggers is one of the best things you can do to both expand your blog and improve your writing. It can be a little intimidating at first, trying to reach out to other bloggers and pitch topic ideas or submit articles, however there’s a lot to be gained from doing so.
1. Exposure: Writing for other blogs, big or small, exposes your writing to an entirely new audience. This is one of the major factors in helping your blog grow, because when someone reads your guest post and appreciates your writing style or the information you shared they will almost always click over to your blog to see what else you have to offer.
2. Links: Backlinks on other websites are what every blogger works so hard to gain because they offer another way for people to find your blog. Since most bloggers will allow their guest posters to put a link in the byline to their blog, it’s the perfect way for you to obtain a new link on the web. (more…)
Researchers from North Carolina State University have developed a new method for forecasting seasonal hurricane activity that is 15 percent more accurate than previous techniques.
“This approach should give policymakers more reliable information than current state-of-the-art methods,” says Dr. Nagiza Samatova, an associate professor of computer science at NC State and co-author of a paper describing the work. “This will hopefully give them more confidence in planning for the hurricane season.” (more…)
A new study finds that relatively early into tobacco addiction, teens experience many of the same negative psychological effects during abstinence as adults do, with a couple of exceptions. The data can inform efforts to improve the efficacy of quitting and withdrawal treatment programs.
PROVIDENCE, R.I. [Brown University] — Abstinence from smoking seems to affect teens differently than adults in a couple of ways, but a new study provides evidence that most of the psychological difficulties of quitting are as strong for relatively new, young smokers as they are for adults who have been smoking much longer.
“Adolescents are showing — even relatively early in the dependence process — significant, strong, negative effects just after acute abstinence from smoking,” said L. Cinnamon Bidwell, assistant professor (research) in psychiatry and human behavior at the Center for Alcohol and Addiction Studies. “Our study shows what those specific effects are. We chose a broad array” of factors to study. (more…)
EAST LANSING, Mich. — Witch hunts are common and sometimes deadly in the tea plantations of Jalpaiguri, India. But a surprising source – small groups of women who meet through a government loan program – has achieved some success in preventing the longstanding practice, a Michigan State University sociologist found.
Soma Chaudhuri spent seven months studying witch hunts in her native India and discovered that the economic self-help groups have made it part of their agenda to defend their fellow plantation workers against the hunts. (more…)
Answer may be ‘adaptive zones’ that limit species number, life scientists report
There are more than 400,000 species of beetles and only two species of the tuatara, a reptile cousin of snakes and lizards that lives in New Zealand. Crocodiles and alligators, while nearly 250 million years old, have diversified into only 23 species. Why evolution has produced “winners” — including mammals and many species of birds and fish — and “losers” is a major question in evolutionary biology.
Scientists have often posited that because some animal and plant lineages are much older than others, they have had more time to produce new species (the dearth of crocodiles notwithstanding). This idea — that time is an important predictor of species number — underlies many theoretical models used by biologists. However, it fails to explain species numbers across all multi-cellular life on the planet, a team of life scientists reports Aug. 28 in the online journal PLoS Biology, a publication of the Public Library of Science. (more…)
EAST LANSING, Mich. — Mechanisms that protect plants from freezing are placed in storage during the summer and wisely unpacked when days get shorter.
In the current issue of the Proceedings of the National Academy of Sciences, Michael Thomashow, University Distinguished Professor of molecular genetics, demonstrates how the CBF (C-repeat binding factor) cold response pathway is inactive during warmer months when days are long, and how it’s triggered by waning sunlight to prepare plants for freezing temperatures. (more…)
A University of Colorado analysis of state-by-state factors leading to the Electoral College selection of every U.S. president since 1980 forecasts that the 2012 winner will be Mitt Romney.
The key is the economy, say political science professors Kenneth Bickers of CU-Boulder and Michael Berry of CU Denver. Their prediction model stresses economic data from the 50 states and the District of Columbia, including both state and national unemployment figures as well as changes in real per capita income, among other factors.
“Based on our forecasting model, it becomes clear that the president is in electoral trouble,” said Bickers, also director of the CU in DC Internship Program. (more…)
