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- NASA Webb's heart survives deep freeze test
After 116 days of being subjected to extremely frigid temperatures like that in space, the heart of the James Webb Space Telescope, the Integrated Science Instrument Module and its sensitive instruments, emerged unscathed from the thermal vacuum chamber at NASA's Goddard Space Flight Center in Greenbelt, Maryland.
- New feather findings get scientists in a flap
Scientists have revealed that feather shafts are made of a multi-layered fibrous composite material, much like carbon fiber, which allows the feather to bend and twist to cope with the stresses of flight. Since their appearance over 150 million years ago, feather shafts (rachises) have evolved to be some of the lightest, strongest and most fatigue resistant natural structures.
- Special microscope captures defects in nanotubes
Chemists have devised a way to see the internal structures of electronic waves trapped in carbon nanotubes by external electrostatic charges. Carbon nanotubes have been touted as exceptional materials with unique properties that allow for extremely efficient charge and energy transport, with the potential to open the way for new, more efficient types of electronic and photovoltaic devices. However, these traps, or defects, in ultra-thin nanotubes can compromise their effectiveness.
- Competition keeps health-care costs low, U.S. researchers find
Medical practices in less competitive health-care markets charge more for services, according to a study. The study, based on U.S. health-care data from 2010, provides important new information about the effects of competition on prices for office visits paid by preferred provider organizations, known more commonly as PPOs. PPOs are the most common type of health insurance plan held by privately insured people in the United States.
- Smoking interferes with neurocognitive recovery during abstinence from alcohol
Researchers know that alcohol-dependent individuals (ALC) sustain neurocognitive impairment even after detoxification. A new study examines specific domains of cognitive recovery in conjunction with smoking status. Findings show that smoking status influenced the rate and level of neurocognitive recovery during eight months of abstinence in the ALC group.
- Bar attendance supports heavy drinking by young adults in the US-Mexico borde...
Mexico is a nearby destination where younger US residents can legally drink heavily. However, high levels of drinking on the US side are not always linked to recent travel to Mexico. New findings show that higher levels of drinking among US-Mexico border youth are closely linked to their patterns of bar attendance, but not to how they think about drinking.
- Understanding drinking behaviors among women with unwanted pregnancies
Most women reduce or stop drinking alcohol upon discovery of pregnancy. A new study looks at changes in alcohol use, and factors contributing to these changes, among women with unwanted pregnancies. Findings indicate that most women with unwanted pregnancies quit or reduce alcohol consumption once they discover their pregnancies, and that some may be substituting alcohol for drugs once they discover their pregnancies.
- Bogus recycling bins help identify drinking patterns among low-income seniors
Substance abuse is the fastest growing health concern for older adults. New findings show that drinking levels are high enough to be concerning and tend to spike around the times older adults receive their social security checks. These results may have prevention implications for social workers working with low-income seniors.
- Diet for your DNA: Novel nutrition plan sparks debate around data protection
Personalized nutrition based on an individual's genotype - nutrigenomics - could have a major impact on reducing lifestyle-linked diseases such as obesity, heart disease and Type II diabetes, experts say. However, a study of more than 9,000 volunteers reveals that strict regulations need to be put in place before nutrigenomics becomes publicly acceptable due to people's fears around personal data protection.
- Overweight women lose in the labor market, study finds
Overweight women are more likely to work in lower-paying and more physically demanding jobs, less likely to get higher-wage positions that include interaction with the public, and make less money in either case compared to average size women and all men, according to a new study.