Add BrightSurf on Google Email

Science News for August 7, 2007


Community-supported agriculture serves as counterexample to market demands of globalization

A study by Craig J. Thompson and Gokcen Coskuner-Balli explores how Community Supported Agriculture (CSA) has thrived as a counterexample to the corporate co-optation of organic food movement, offering a viable market niche for small farmers and a means for consumers to engage in unconventional marketplace practices.

SourceUniversity of Chicago Press Journals·JournalJournal of Consumer Research·DateAug 7, 2007

Simulated relationships offer insight into real ones

Researchers at the University of Illinois explore how people manage romantic relationships through simulated online dating scenarios. The study found that a participant's attachment style is a good predictor of their pattern of choices, with highly insecure individuals more likely to interpret negative actions and choose in kind.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalPersonality and Social Psychology Bulletin·DateAug 7, 2007

Other highlights in the Aug. 7 JNCI

Researchers found that taking vitamins and minerals did not reduce liver cancer death rates in a study conducted by the National Cancer Institute. However, some vitamin-mineral combinations reduced risk in subgroups defined by age, sex, and alcohol consumption. In contrast, gene expression patterns identified 11 genes in noncancerous l...

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateAug 7, 2007

Math plus cryptography equals drama and conflict

The intersection of mathematics and cryptography has significant implications for security and research, with mathematicians like Neal Koblitz contributing to the field. Koblitz's work highlights the challenges of 'provable security' in cryptography, as well as the influence of the National Security Agency on research.

SourceAmerican Mathematical Society·JournalNotices of the American Mathematical Society·DateAug 7, 2007

UCLA scientists produce functioning neurons from human embryonic stem cells

Researchers have developed a method to produce highly pure and functional neurons from human embryonic stem cells, enabling the creation of models for studying neurological diseases such as Alzheimer's and Parkinson's. The new approach allows for the isolation of specific neuronal populations with defined biological properties.

SourceUniversity of California - Los Angeles·JournalProceedings of the National Academy of Sciences·DateAug 7, 2007

Chemotherapy with bevacizumab increases risk of blood clots in arteries

A study published in the Journal of the National Cancer Institute found that chemotherapy with bevacizumab increases the risk of blood clots in arteries, with a higher incidence among patients over 65 years old. The risk of arterial thromboembolic events was significantly higher in patients treated with the combination therapy compared...

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateAug 7, 2007

Parents' depression can weigh on children

A new study by University of Florida researchers found that parent distress, peer bullying, and childhood depression can all impact a child's well-being. Children whose parents struggled with stress or depression were more likely to have lower quality of life scores, as well as depressive symptoms and poorer health status.

SourceUniversity of Florida·JournalObesity·DateAug 7, 2007

Controlling prescription drug expenditures: a case report of success

A three-year observational study at Wake Forest University Baptist Medical Center found that a combination of strategies, including reclassifying brand-name drugs and removing non-essential medications from the formulary, resulted in significant cost savings. The plan's approach preserved members' use of medications for chronic conditi...

SourceAtrium Health Wake Forest Baptist·JournalThe American Journal of Managed Care·DateAug 7, 2007

The grass isn't greener

New research shows that anticipating future choices can cause consumers to selectively focus on information suggesting alternative options, leading them to disregard their current choice's advantages. This phenomenon was replicated even when the chosen store was less expensive than others.

SourceUniversity of Chicago Press Journals·JournalJournal of Consumer Research·DateAug 7, 2007

Weed gave up sex long ago

A widely studied plant species has revised its understanding of sex evolution and genetic heritage, with self-pollination emerging at least a million years ago. This finding contradicts previous estimates and suggests that sex may be more trouble than it's worth in plant evolution.

SourceUniversity of Southern California·JournalNature Genetics·DateAug 7, 2007

Secret life of elephant seals not secret anymore!

Researchers have studied the secret lives of southern elephant seals, revealing their detailed feeding behavior in relation to oceanographic features. The measurements show that seal populations in different regions have distinct foraging strategies, which may explain the decline of Indian and Pacific seal numbers since the 1950s.

SourceCSIRO Australia·JournalProceedings of the National Academy of Sciences·DateAug 7, 2007

Cornell scientists link E. coli bacteria to Crohn's disease

A recent study published in The ISME Journal reveals that a specific group of E. coli bacteria is associated with chronic intestinal inflammation in patients with Crohn's disease. Researchers found an increased level of invasive E. coli bacteria in inflamed areas of the small intestine, suggesting a potential causal link to the disease.

SourceCornell University·JournalThe ISME Journal·DateAug 7, 2007

'Convenience' foods save little time for working families at dinner

A recent study by UCLA's Center on Everyday Lives of Families found that convenience foods are commonly used in American families' dinners despite initial expectations. On average, meals took 52 minutes to prepare, with no significant time savings from relying on convenience foods. The study also revealed that mothers bear the brunt of...

SourceUniversity of California - Los Angeles·JournalBritish Food Journal·DateAug 7, 2007

Michigan-CDC study supports value of social restrictions during influenza pandemics

A Michigan-CDC study analyzed 43 US cities during the 1918-1919 Spanish flu pandemic and found that sustained non-pharmaceutical interventions (NPIs) like quarantine, isolation, school closures, and public gathering cancellations significantly reduced mortality rates. The study's findings challenge conventional wisdom on the effectiven...

Bacteria may not hasten death

A study by University of Southern California researchers found that bacteria-free fruit flies lived as long as their bacterial counterparts, challenging conventional wisdom about the impact of microbes on lifespan. The finding suggests that factors other than bacterial load may limit life span.

SourceUniversity of Southern California·JournalCell Metabolism·DateAug 7, 2007

A new wrinkle in thin film science

Scientists have developed a simple experiment to measure the mechanical properties of thin films, which could impact industries like cosmetics, coatings and nanoelectronics. The new method uses low-power optical microscopy to observe wrinkles in the film, providing insight into material properties.

Viewing ecosystems from above

Recent advancements in remote sensing technologies, such as lidar and high fidelity imaging spectroscopy, enable researchers to study ecological systems at multiple levels. These tools provide essential information for characterizing landscape dynamics and quantifying ecosystem functions related to biogeochemical cycling.