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Review of THE MEDEA HYPOTHESIS and other news from The Science Shelf

May 12, 2009 by Fred Bortz

Fred Bortz's picture

I just e-mailed the "Bookonomic Stimulus Edition" of the Science Shelf Newsletter to subscribers.

It includes pointers to numerous new titles, including the one reviewed below. You might call that book "Goodbye Gaia; Hello Monster-Mom," but author Peter Ward prefers The Medea Hypothesis: Is Life on Earth Ultimately Self-Destructive?

Any way you slice it, warming climate is affecting Cascades snowpack

There has been sharp disagreement in recent years about how much, or even whether, winter snowpack has declined in the Cascade Mountains of Washington and Oregon during the last half-century.

Brain cell mechanism for decision making also underlies judgment about certainty

Countless times a day people judge their confidence in a choice they are about to make -- that they now can safely turn left at this intersection, that they aren't sure of their answer on a quiz, that their hot coffee has cooled enough to drink.

People of higher socioeconomic status choose better diets -- but pay more per calorie

St. Louis, MO, May 1, 2009 - As people become more educated, studies have demonstrated that they tend to choose foods that are lower in calories but higher in nutrients. They also pay more.

Finding a stereotype that is true: Mexicans more sociable than Americans

Stereotypes often paint a partial or false picture of an individual or group.

But now researchers have found evidence that supports a stereotype held by many in the United States - that Mexicans are more outgoing, talkative, sociable and extroverted. The finding also contradicts the way many Mexicans view themselves as being less extroverted than Americans.

Missing planets attest to destructive power of stars' tides

During the last two decades, astronomers have found hundreds of planets orbiting stars outside our solar system. New research indicates they might have found even more except for one thing - some planets have fallen into their stars and simply no longer exist.

Jet lag disturbs sleep by upsetting internal clocks in 2 neural centers

Jet lag is the bane of many travelers, and similar fatigue can plague people who work in rotating shifts. Scientists know the problem results from disruption to the body's normal rhythms and are getting closer to a better understanding that might lead to more effective treatment.

OHSU scientists partner with others to form center aimed at combating infectious diseases

PORTLAND, Ore. - Oregon Health & Science University and the University of Washington, along with a number of partner institutions across the Northwest, have received federal funding to form a regional research center aimed at combating emerging or re-emerging infectious diseases that pose a serious threat to human health.

People's misperceptions cloud their understanding of rainy weather forecasts

If Mark Twain were alive today he might rephrase his frequently cited observation about everyone talking about the weather but not doing anything about it to say, "Everyone reads or watches weather forecasts, but many people don't understand them."

Family ties provide protection against young adult sucidal behavior

SAN FRANCISCO -Adolescents and young adults typically consider peer relationships to be all important. However, it appears that strong family support, not peer support, is protective in reducing future suicidal behavior among young adults when they have experienced depression or have attempted suicide.

Genes from tiny marine algae suggest unsuspected avenues for new research

MOSS LANDING, CA -- By sequencing the DNA of two tiny marine algae, a team of scientists has opened up a myriad of possibilities for new research in algal physiology, plant biology, and marine ecology. The project was led by Alexandra Worden at the Monterey Bay Aquarium Research Institute (MBARI) and the Joint Genome Institute (JGI).

New medications show promise in treating drug-resistant prostate cancer

A new therapy for metastatic prostate cancer has shown considerable promise in early clinical trials involving patients whose disease has become resistant to current drugs.

NOAA: Ice-free Arctic summers likely sooner than expected

Summers in the Arctic may be ice-free in as few as 30 years, not at the end of the century as previously expected. The updated forecast is the result of a new analysis of computer models coupled with the most recent summer ice measurements.

More compelling evidence on why earlier HIV treatment lengthens survival

Seattle - A study showing improved survival of starting antiretroviral treatment earlier than current U.S. recommendations is being reported in the April 30 issue of the New England Journal of Medicine. The study found that not starting HIV patients at a CD4 count greater than 500 cells per cubic millimeter increased risk of death by 94 percent.

Humans may be losers if technological nature replaces the real thing

There are Web cams focused on falcons, ferrets and fish, virtual tours of the Grand Canyon and Yosemite, and robotic dogs, seals and even dinosaurs. But what about the real deal: observing animals in their natural habitat, hiking the John Muir Trail or a playing with a live pet?



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