science newsletter: Science News SciGuru.com

Παρασκευή 26 Απριλίου 2013

Science News SciGuru.com

Observations of the most massive neutron star confirm Einstein's Relativity Theory
Quit Smoking? Vitamin E May Give Extra Boost to Heart Health
More severe concussion symptoms lead to longer recovery time
Autism risk spotted at birth in abnormal placentas
Material loss protects teeth against fatigue failure
Scientists Find Antibody that Transforms Bone Marrow Stem Cells Directly into Brain Cells

Observations of the most massive neutron star confirm Einstein's Relativity Theory

Posted: 26 Apr 2013 07:05 AM PDT

An international research team led by astronomers from the Max Planck Institute for Radio Astronomy) used a collection of large radio and optical telescopes in Bonn to investigated in detail a pulsar and its white dwarf companion. The observations revealed a binary stellar system with unusual properties. The pulsar weighs twice as much as the sun, making it the most massive neutron star measure to date. This, in combination with its short orbital period of only 2.5 hours, provides new insights into the emission of gravitational radiation.

Quit Smoking? Vitamin E May Give Extra Boost to Heart Health

Posted: 25 Apr 2013 10:52 AM PDT

Taking a specific form of a vitamin E supplement can accelerate the health benefits that occur when people quit smoking, new research suggests.

In the small study, improvement in blood vessel function associated with the added vitamin E potentially translates into an estimated 19 percent greater drop in future risk for cardiovascular disease.

More severe concussion symptoms lead to longer recovery time

Posted: 25 Apr 2013 10:34 AM PDT

Most children who suffer from sports-related concussions recover within a few days. However, in a small number of children, symptoms can last for a month or more. Although there have been numerous theories as to what might predict a longer recovery time, there is no definitive answer as to why it takes some children longer to recover. In a new study scheduled for publication in The Journal of Pediatrics, researchers attempted to identify risk factors that might predispose some children with concussions to longer recovery times.

Autism risk spotted at birth in abnormal placentas

Posted: 25 Apr 2013 08:53 AM PDT

Researchers at the Yale School of Medicine have figured out how to measure an infant’s risk of developing autism by looking for abnormalities in his/her placenta at birth, allowing for earlier diagnosis and treatment for the developmental disorder. The findings are reported in the April 25 online issue of Biological Psychiatry.

Material loss protects teeth against fatigue failure

Posted: 25 Apr 2013 08:12 AM PDT

Scientists of the Max Planck Institute for Evolutionary Anthropology in Leipzig and the Senckenberg Research Institute in Frankfurt together with dental technicians have digitally analysed modern human teeth using an engineering approach, finite element method, to evaluate the biomechanical behaviour of teeth under realistic loading. They report results, showing that very widespread loss of dental material (enamel and dentine) at the base of the crown might be linked to the reduction of tooth wear in our industrialised societies.

Scientists Find Antibody that Transforms Bone Marrow Stem Cells Directly into Brain Cells

Posted: 25 Apr 2013 08:00 AM PDT

In a serendipitous discovery, scientists at The Scripps Research Institute (TSRI) have found a way to turn bone marrow stem cells directly into brain cells.