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Science News Archive February 2013


Page 28 of 28

Increases in extreme rainfall linked to global warming

A global review of rainfall data found that extreme rainfall events are increasing in intensity and frequency due to rising temperatures. The study, published in the Journal of Climate, shows a 7% increase in extreme rainfall for every degree rise in atmospheric temperature.

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Humanitarian aid workers in Uganda show signs of stress, depression, and burnout

A new study by Columbia University's Mailman School of Public Health found that 68% of Ugandan humanitarian aid workers experienced symptoms of depression, while 53% had anxiety disorders and 26% posttraumatic stress disorder. The study suggests that organizational environment significantly influences mental health and wellbeing.

Needless abdominal CT scans can be avoided in children, study says

A study of over 12,000 children has identified seven factors that can help physicians determine if a CT scan is necessary following blunt trauma to the abdomen. Children with none of these factors have only a 0.1% chance of having an abdominal injury requiring acute intervention.

Imaging unveils temperature distribution inside living cells

A research team in Japan has developed a new imaging method that allows for detailed intracellular temperature maps, revealing the temperature difference varies greatly depending on the location in the cell. This breakthrough may lead to a better understanding of diseases like cancer and its pathogenesis.

Type II diabetes and the Alzheimer's connection

Scientists found that people with type 2 diabetes face twice the risk of developing Alzheimer's disease due to peptide deposits. Researchers discovered the molecular interactions between amyloid beta and amylin peptides, which may lead to protein aggregation and disease progression.

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Cats and humans suffer from similar forms of epilepsy

Cats and humans share a similar form of epilepsy caused by an autoimmune response targeting nerve cell proteins. Researchers have discovered antibodies reacting to these proteins in the blood of affected cats, which is consistent with a similar human condition.

$5 million awarded in Sixth Starr Cancer Consortium Grant Competition

The Sixth Starr Cancer Consortium Grant Competition awarded $5 million to five collaborative cancer research projects at Memorial Sloan-Kettering, The Rockefeller University, and Weill Cornell Medical College. These projects aim to deepen understanding of cancers and transform detection and treatment through innovative approaches.

Caring friends can save the world

New research from Concordia University found that caring relationships in friendships can foster a desire to make a positive impact on one's community and world. Adolescents who exhibit empathic care towards their friends are more likely to develop concern for others beyond their immediate circle.

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University of Houston selected to receive support from National Park Service

The University of Houston has been selected to receive support from the National Park Service for a trail development project in Southeast Houston. The project aims to improve hike and bike connections between three neighborhood parks and the Brays Bayou trail, providing recreational access to nearby park lands and natural landscapes.

New methods for quantifying antisense drug delivery to target cells and tissues

Two new methods for detecting and measuring the levels of antisense drugs in cells have been developed, allowing researchers to track PMO delivery to individual cells and quantify its presence in tissue. These methods will advance the field of PMO research and provide valid alternatives to current time-consuming detection techniques.

Can plants be altruistic? You bet, says new CU-Boulder-led study

A new CU-Boulder-led study reveals that plants can exhibit altruistic behavior, prioritizing the growth and well-being of their closely related offspring. The research found that endosperm in seeds sharing the same mother and father grew more heavily than those with genetically different parents.

New study sheds light on link between dairy intake and bone health

Researchers found that higher dairy intake, particularly from milk and yogurt, is associated with improved bone mineral density in the hip. However, cream consumption was linked to lower bone density. The study suggests choosing low-fat dairy products can increase nutrient intake and reduce saturated fat consumption.

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Tracking the evolution of antibiotic resistance

Researchers developed an automated device called morbidostat to track the evolution of antibiotic resistance at the genetic level. The team identified key genes involved in creating drug-resistant states and documented real-time changes in genes that gave bacteria an advantage in evolving to outwit antibiotics.

How do corals survive in the hottest reefs on the planet?

Researchers at National Oceanography Centre and New York University Abu Dhabi discovered corals can thrive at high seawater temperatures, up to 36 degrees Celsius. The study found special algae strains that facilitate this heat resistance, providing new insights into coral survival and potential for reef conservation.

The nanomechanical signature of breast cancer

Researchers found that breast cancer tissue has a mix of stiff and soft zones, whereas healthy tissue has uniform stiffness. This discovery may help improve breast cancer diagnosis and therapy by identifying potential for cancer spread. The study used advanced microscopy techniques to analyze tissue properties at the nanoscale.

Gap geometry grasped

A new algorithm analyzes void space in sphere packing to study the geometry of liquids and their flow through porous media. The method can also be applied to protein structure analysis, revealing key quantities such as buried cavity sizes and solvent accessibility.

JCI early table of contents for Feb. 1, 2013

Researchers have found that transplanted neural stem cells can migrate to the gut and develop into functional neurons, providing a promising new treatment for gastrointestinal motility disorders. Additionally, a protein called MFGE8 has been identified as an important regulator of inflammation, blocking inflammasome activity and limiti...

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