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Science News Archive July 2013 - Page 29


Page 29 of 31

Non-invasive brain stimulation helps stroke patients gain prolonged language recovery

Researchers developed a non-invasive brain stimulation technique using transcranial magnetic stimulation to improve language function in stroke patients with chronic aphasia. The technique demonstrated long-term improvement in language production, enabling continued development of language capacity months after treatment.

SourceThe Journal of Visualized Experiments·JournalJournal of Visualized Experiments·DateJul 2, 2013

Brain sets prices with emotional value

A study by Duke University researchers has discovered that the brain's ventromedial prefrontal cortex, a small area between the eyes, calculates both emotional and economic values. The vmPFC plays a key role in value tradeoffs, such as determining whether to part with hard-earned money for a product.

Fishing in the sea of proteins

For the first time, a large complex of proteins and RNA has been identified in chloroplasts, which cuts non-coding regions out of messenger RNA to create a protein blueprint. The study reveals that this splicing complex contains 23 different proteins encoded in the cell nucleus.

SourceRuhr-University Bochum·JournalMolecular & Cellular Proteomics·DateJul 2, 2013

Why do we gesticulate?

Studies of early development in fishes reveal a single compartment in the hindbrain controlling vocal and pectoral mechanisms, which may explain why humans use hand gestures when speaking. This neural connection could be key to understanding the evolution of language.

Smoking cessation, weight gain, and subsequent CHD risk

Researchers found that smoking cessation lowered the risk of coronary heart disease among postmenopausal women with and without diabetes. However, weight gain after quitting weakened this association, particularly for women who gained 11 lbs or more, according to a study using data from the Women's Health Initiative.

SourceJAMA Network·JournalJAMA·DateJul 2, 2013

New forensic technique may help track illegal ivory

A new method for dating elephant tusks using radiocarbon levels could help enforce the ivory ban and save African elephants from extinction. The technique, developed by Columbia University researchers, can be applied to other endangered wildlife and is affordable for government agencies.

SourceColumbia Climate School·JournalProceedings of the National Academy of Sciences·DateJul 1, 2013

Researchers find 2 new methods to determine ALK status

Researchers have developed two new methodologies to determine ALK status in non–small-cell lung cancer (NSCLC) patients. The first method improves IHC assay sensitivity using a novel hapten and tyramide amplification, detecting low levels of ALK protein expression. The second method combines brightfield IHC with in situ hybridization f...

SourceInternational Association for the Study of Lung Cancer·JournalJournal of Thoracic Oncology·DateJul 1, 2013

New treatment for schizophrenia discovered in Finland

Researchers at the University of Helsinki have found that high doses of famotidine can penetrate the blood-brain barrier and affect the histamine system in the brain. After four weeks of treatment, symptoms of schizophrenia decreased statistically significantly in patients who received famotidine.

SourceUniversity of Helsinki·JournalJournal of Clinical Psychopharmacology·DateJul 1, 2013

Supersense: It's a snap for crocs

Research found that crocodylians have unique multi-sensory organs called dome pressure receptors or Integumentary Sensory organs, which grant fingertip sensitivity and detect surface pressure waves. These sensors also help regulate body temperature and detect suitable habitats.

SourceBMC (BioMed Central)·JournalEvoDevo·DateJul 1, 2013

Study identifies priorities for improving global conservation funding

A new study has identified countries with the worst and best funding for biodiversity conservation, revealing a need for improved global distribution of conservation funds. The research found that underfunded countries often harbor high levels of threatened mammal biodiversity, highlighting opportunities for targeted conservation efforts.

SourceUniversity of Georgia·JournalProceedings of the National Academy of Sciences·DateJul 1, 2013

Doctor-patient communication about dietary supplements could use a vitamin boost

A new UCLA-led study found that primary care physicians rarely discuss the risks and benefits of dietary supplements with their patients. The study analyzed audio recordings from over 1,400 office visits and discovered that only six out of 738 supplements were discussed in detail regarding all five major topics.

SourceUniversity of California - Los Angeles Health Sciences·JournalPatient Education and Counseling·DateJul 1, 2013

1 in 5 UK NHS staff report bullying by colleagues

Research published in BMJ Open found that 19.9% of respondents had been bullied by colleagues within the past six months, with medical and dental staff reporting the highest levels of bullying. The study also highlighted the impact of bullying on psychological distress, job satisfaction, and increased intentions to leave the profession.

SourceBMJ Group·JournalBMJ Open·DateJul 1, 2013

JCI early table of contents for July 1, 2013

Researchers have made significant progress in developing new gene therapies to treat Sickle Cell Disease, malaria, and Mucopolysaccharidosis Type IIIA. In the Journal of Clinical Investigation, scientists successfully delivered a replacement gene to the brain in mice and dogs with MPSIIIA using intra-cerebrospinal fluid gene therapy.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 1, 2013

Nuke test radiation can fight poachers

Researchers developed a new method using radioactive carbon-14 from nuclear bomb tests to determine the age of ivory, helping to combat illegal poaching. The method has immediate applications in enforcing international trade bans and reducing demand for ivory.

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·DateJul 1, 2013

Biomedical research revealing secrets of cell behavior

Researchers at Arizona State University have made significant progress in understanding cell fate determination, a process that governs how cells develop and transition. By using mathematical modeling and synthetic biology techniques, they created artificial gene networks and observed the behavior of cells as they approached their tipp...

SourceArizona State University·JournalProceedings of the National Academy of Sciences·DateJul 1, 2013

Brain differences seen in depressed preschoolers

A key brain structure that regulates emotions works differently in depressed preschoolers compared to their healthy peers, according to new research. The findings suggest the children's brains may be experiencing an exaggeration of a normal developmental response to emotions.

SourceWashU Medicine·JournalJournal of the American Academy of Child & Adolescent Psychiatry·DateJul 1, 2013

Tallying the wins and losses of policy

A new study found that China's payments for ecosystem services programs led to significant forest growth and environmental benefits. However, the programs also had negative impacts on rural households and their livelihoods, highlighting the need for more sustainable policies.

SourceMichigan State University·JournalJournal of Environmental Management·DateJul 1, 2013