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Science News Archive April 2013 - Page 19


Page 19 of 32

Most effective PTSD therapies are not being widely used, researchers find

Despite identifying effective treatments for post-traumatic stress disorder (PTSD), most mental health professionals fail to use them, leaving patients without access to crucial care. Prolonged exposure therapy and cognitive behavioral therapy have been proven highly effective in addressing PTSD symptoms, yet they are not widely adopted.

SourceAssociation for Psychological Science·JournalPsychological Science in the Public Interest·DateApr 11, 2013

Lady flies can decide who will father their young

A study by Christian Rodriguez-Enriquez and colleagues found that female flies can expel and consume male ejaculate after copulation, potentially biasing paternity. The researchers also discovered that well-fed females were more likely to consume ejaculate, which may have positive health benefits in arid environments.

SourceSpringer·JournalBehavioral Ecology and Sociobiology·DateApr 11, 2013

New material system permits 3-D patterning to regulate stem cell behavior

Researchers at Case Western Reserve University developed a new material system that permits 3D patterning to regulate stem cell behavior, offering promise for studying influences on cell fate decisions. The technique enables local control over cell proliferation and differentiation, potentially allowing the engineering of complex tissues.

SourceCase Western Reserve University·JournalAdvanced Functional Materials·DateApr 11, 2013

Discovery points to new approach to fight dengue virus

Researchers have discovered that rising temperature induces key changes in the dengue virus when it enters its human host, leading to a new approach for designing vaccines against the aggressive mosquito-borne pathogen. The study found that the virus's bumpy form is more efficient at infecting mammalian cells.

SourcePurdue University·JournalProceedings of the National Academy of Sciences·DateApr 11, 2013

How some leaves got fat: It's the veins

A new study by Brown University researchers found that fat leaves evolved a three-dimensional vein structure to store water and sustain efficient photosynthesis. This evolution allowed leaves to become thicker without compromising hydraulic performance, enabling plants like succulents to thrive in arid conditions.

SourceBrown University·JournalCurrent Biology·DateApr 11, 2013

Why we buy music

A recent study at McGill University found that the nucleus accumbens and auditory cortex interact to assign value to music through pattern recognition and prediction. This interaction involves ancient dopaminergic reward circuitry and is essential for our survival and emotional experiences.

SourceMcGill University·JournalScience·DateApr 11, 2013

Restoring paretic hand function via an artificial neural connection bridging spinal cord injury

A novel artificial neural connection bridges the lost pathway between brain and spinal cord, allowing for volitional control of upper limb movement after damage. This study demonstrates that artificial neural connections can compensate for interrupted descending pathways and promote voluntary control.

SourceNational Institute for Physiological Sciences·JournalFrontiers in Neural Circuits·DateApr 11, 2013

Endometriosis treatments lower ovarian cancer risk

A novel study suggests that surgical removal of an ovary and visible endometriosis significantly lower ovarian cancer risk in women with endometriosis. Hormonal treatments, however, did not show a protective effect against ovarian cancer.

SourceWiley·JournalActa Obstetricia Et Gynecologica Scandinavica·DateApr 11, 2013

Do drugs for bipolar disorder 'normalize' brain gene function? U-M study suggests so

A new University of Michigan Medical School study reveals that certain antipsychotic medications may help normalize the activity of genes involved in communication between brain cells. The research found similarities in gene expression patterns among patients treated with these medications and those without bipolar disorder, suggesting...

SourceMichigan Medicine - University of Michigan·JournalBipolar Disorders·DateApr 11, 2013

Researchers demonstrate oldest dinosaur embryos

Researchers from the University of Bonn have found the oldest known dinosaur embryos in China, shedding light on the rapid growth and high reproductive rate of these ancient animals. The discoveries provide valuable insights into the biology of dinosaurs, including their development and behavior.

SourceUniversity of Bonn·JournalNature·DateApr 11, 2013

Are 4 antenatal visits enough?

A reanalysis of the WHOACT data found an increased risk of fetal death for women with reduced antenatal visits, particularly between 32 and 36 weeks. The study suggests that routine antenatal visits may detect asymptomatic conditions earlier, allowing timely intervention.

SourceBMC (BioMed Central)·JournalReproductive Health·DateApr 11, 2013

Study reports adenoma detection rates are higher than current guidelines suggest in both men and women

A new study found that average-risk screening adenoma detection rates are significantly higher than current guidelines suggest, with women having a 25.4% risk and men having a 41.2% risk. Overall advanced-pathology adenoma detection was also higher in men, highlighting the need for vigilance in identifying patients with adenomas to pre...

SourceAmerican Society for Gastrointestinal Endoscopy·JournalGastrointestinal Endoscopy·DateApr 11, 2013

The mathematical method for simulating the evolution of the solar system has been improved

Scientists have developed a new numerical method for simulating the evolution of the solar system, which is ten times faster and more accurate than previous methods. The collaboration between mathematicians, computer scientists, physicists, and astronomers has led to a significant improvement in the simulation's reliability over time.

SourceElhuyar Fundazioa·JournalApplied Numerical Mathematics·DateApr 11, 2013