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Science News Archive July 2014 - Page 16


Page 16 of 34

A new view of the world

Exercise and relaxation techniques have been found to alter how people perceive their environment, making it less threatening for those with mood and anxiety disorders. This breakthrough could explain why these treatments are successful in managing symptoms.

SourceQueen's University·JournalPLOS ONE·DateJul 17, 2014

Cost of kidney donation may be too much for potential donors with low income

A study found that lower income populations have consistently had lower rates of living donation compared to higher income populations. The difference in living donation rates between lower and higher income populations has become larger over time, implying a need for more effective strategies to overcome financial barriers.

SourceAmerican Society of Nephrology·JournalJournal of the American Society of Nephrology·DateJul 17, 2014

Physicists reveal random nature of metastasis

A new study suggests that cancer metastasis, the spread of tumors from one part of the body to another, may occur through pure chance. Researchers used statistical models to show that 'common' cancer cells circulating in the bloodstream could, on rare occasions, cause metastasis.

SourceIOP Publishing·JournalPhysical Biology·DateJul 17, 2014

Gut microbes turn carbs into colorectal cancer

A new study reveals that gut microbes metabolize carbohydrates, causing intestinal cell proliferation and tumor formation in mice genetically predisposed to colorectal cancer. Treatment with antibiotics or a low-carbohydrate diet significantly reduced tumors, suggesting these interventions could prevent this type of cancer in humans.

SourceCell Press·JournalCell·DateJul 17, 2014

Eating lean beef daily can help lower blood pressure

A recent study by Penn State researchers found that eating lean beef daily can effectively lower blood pressure in healthy individuals. The BOLD+ diet, which includes 5.4 ounces of lean beef per day, was more effective at reducing blood pressure compared to other diets tested.

SourcePenn State·JournalJournal of Human Hypertension·DateJul 17, 2014

Vision loss associated with work status

A study of 19,849 participants found that those with vision impairment had significantly lower employment rates, especially among women and younger individuals. Poor eyesight was also associated with a higher likelihood of not working due to its impact on income.

SourceJAMA Network·JournalJAMA Ophthalmology·DateJul 17, 2014

University of Houston researchers create new method to draw molecules from live cells

University of Houston researchers have developed a technique to extract biomolecules from live cells without killing them. The method uses magnetized carbon nanotubes to retrieve molecular information, allowing researchers to study single cells. This breakthrough could provide new avenues for diagnosing cancer and other diseases.

SourceUniversity of Houston·JournalProceedings of the National Academy of Sciences·DateJul 17, 2014

Exploiting gastric vulnerability

Researchers found that H. pylori bacteria can rapidly detect minor injuries in the stomach and navigate toward them. The study shows how H. pylori causes disease by interfering with healing at these injury sites.

SourcePLOS·JournalPLOS Pathogens·DateJul 17, 2014

Choosing cheese

Researchers at Harvard University studied 137 varieties of cheese from 10 countries to identify three general types of microbial communities. These findings provide a model for studying microbial communities and their interactions, with potential applications in understanding various biological processes. The study also reveals the imp...

SourceHarvard University·JournalCell·DateJul 17, 2014

Help wanted: Principals who love change

US Department of Education reforms place demands on principals' expertise and time; new report recommends coaching teachers, redesigning job descriptions, and university partnerships to support principals. Effective principal training is crucial to implementing stronger teacher evaluation systems, according to researchers.

The Lancet: Causes of death shifting in people with HIV

A large international study has found that overall death rates among HIV-positive adults have almost halved since 1999, while deaths due to AIDS-related causes and cardiovascular disease have declined significantly. Non-AIDS cancers remain a leading cause of non-AIDS deaths in people with HIV.

SourceThe Lancet·JournalThe Lancet·DateJul 17, 2014

Untangling spider's webs

A groundbreaking study by Harvard University researchers shows that orb-weaver spiders do not share a single origin, contrary to long-held popular opinion. The study's findings suggest that the orb web evolved independently in two groups of spiders, with distinct behaviors and silk characteristics.

SourceHarvard University·JournalCurrent Biology·DateJul 17, 2014

Do urban casinos increase local crime? Not in this case study

Researchers at Drexel University and Temple University found that the introduction of SugarHouse Casino had no significant impact on violent street felonies, vehicle crime, residential burglary, or drug crimes in the immediate neighborhood. Crime rates were largely unaffected, with some displacement to surrounding areas observed.

SourceDrexel University·JournalSecurity Journal·DateJul 17, 2014