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Science News Archive July 2011 - Page 20


Page 20 of 25

Teaching the neurons to meditate

A study found that meditation training can lead to changes in brain activity even with short practice time, suggesting its potential benefits. After five weeks of meditation, participants showed greater activity in the left frontal region of the brain in response to subsequent meditation attempts.

SourceAssociation for Psychological Science·JournalPsychological Science·DateJul 7, 2011

Big step forward for SKA

The SKA radio telescope has successfully linked its antennas over long distances using an optical fibre network, a key step towards observing distant galaxies in greater detail. The experiment saw six telescopes working together to observe a quasar 7.5 billion light-years away, revealing new insights into the universe.

Cortisol controls recycling of bile acids

Research found that cortisol controls the recycling of bile acids, which are crucial for fat digestion. Without cortisol, mice lose weight and develop gallstones due to reduced bile acid levels. In humans with Addison's disease, cortisol deficiency also disrupts bile acid recycling.

SourceHelmholtz Association·JournalCell Metabolism·DateJul 7, 2011

A drugstore within

Researchers at Case Western Reserve University found that mesenchymal stem cells can inhibit an overactive immune system and promote tissue repair. These cells have shown potential in treating conditions such as acute heart attack, stroke, kidney failure, and juvenile diabetes.

SourceCase Western Reserve University·JournalCell Stem Cell·DateJul 7, 2011

Nano detector for deadly anthrax

Researchers developed a portable nano detector that can identify anthrax in 15 minutes, detecting as few as 40 microscopic cells. The device uses PCR to amplify target DNA and integrates sample preparation, making it more convenient than existing systems.

SourceInderscience Publishers·JournalInternational Journal of Biomedical Nanoscience and Nanotechnology·DateJul 6, 2011

August 2011 Geology highlights

This article covers various geological topics from August 2011, including microbial activity in banded-iron formations, the San Andreas fault system's deformation patterns, and earthquake hazards. Researchers also investigated porosity redistribution in crystal-rich magmas and boundaries conditions on laboratory models of simple shear.

SourceGeological Society of America·JournalGeology·DateJul 6, 2011

Can in-hospital falls really be prevented?

A literature review published by the American Academy of Orthopaedic Surgeons found that many fall prevention initiatives used in healthcare facilities are ineffective in preventing hospital falls. The study suggests that hospitals may not be able to prevent most falls due to various risk factors beyond their control.

SourceAmerican Academy of Orthopaedic Surgeons·JournalJournal of the American Academy of Orthopaedic Surgeons·DateJul 6, 2011

Future labor shortfalls of medical professionals predicted due to new demands of health-care reform

A study published in the Journal of the American College of Surgeons predicts a shortfall in the combined workforce of physicians, advance practice nurses, and physician assistants over the next two decades. The US will face serious shortages if an adequate supply of advanced medical professionals is not met.

SourceWeber Shandwick Worldwide·JournalJournal of the American College of Surgeons·DateJul 6, 2011

New psychotherapy intervention improves end-of-life experience for dying patients and helps their relatives

A new psychotherapy intervention, dignity therapy, significantly improves quality of life and enhances the dignity of patients at the end of life, while helping their families. The study found that dignity therapy reduces distress and enriches the end-of-life experience compared to standard palliative care and client-centred care.

SourceThe Lancet_DELETED·JournalThe Lancet Oncology·DateJul 6, 2011

Combination therapy as good as old regimen to prevent full-blown TB in people with/without HIV

A new combination therapy of rifapentine and isoniazid, taken once weekly for three months, has been shown to be as effective as traditional daily treatment in preventing latent tuberculosis in people with and without HIV. The study found that 95% of participants completed the treatment, compared to 60% or less with traditional therapy.

SourceJohns Hopkins Medicine·JournalNew England Journal of Medicine·DateJul 6, 2011

Discovering the bigger picture in chromosomes

A research team from Kansas State University has found that the chromosome sizes within each eukaryotic species are similar rather than drastically different, and share a similar distribution pattern. This discovery will help scientists better predict evolutionary adaptations and understand core components of biological evolution.

SourceKansas State University·JournalMolecular Biology and Evolution·DateJul 6, 2011