Tech

The share price of a stock reflects investor and analyst opinions about its prospects and indicates whether positive or negative developments are on the horizon. The micoblogging platform Twitter has become an important medium for the exchange of such viewpoints. Thousands of stock-related messages are broadcasted every day via Twitter. Twittering investors mark tweets according to company stock symbols, for example, "$AAPL" for the U.S. computer company Apple.

CO2 capture by means of amines is considered to be the most appropriate method to quickly begin with CO2 removal. During this capture process, some of the amines escaping the recycling process will be emitted into the air and will also form other compounds such as nitrosamines and nitramines. The Norwegian Institute of Public Health (NIPH) was commissioned by the Climate and Pollution Agency (Klif) to assess whether these new emissions are harmful to health - particularly in terms of the cancer risk to the general population. The results of the risk assessments were submitted recently.

Babies are born earlier when their mothers live near a concentration of freeways and main roads, a study of 970 mothers and their newborn babies in Logan City, south of Brisbane, has found.

Senior research fellow Associate Professor Adrian Barnett from Queensland University of Technology's (QUT) Institute of Health and Biomedical Innovation (IHBI) said the study, published today in the online journal Environmental Health, showed that the more freeways and highways around a pregnant woman's home, the higher the likelihood of her baby being born prematurely.

Research from North Carolina State University shows that they really don't make women like they used to, at least in Spain. The study, which examined hundreds of Spanish and Portuguese skulls spanning four centuries, shows that differences in the craniofacial features of men and women have become less pronounced.

Coils are a central functional element of the motor. They are subjected to strong vibrations and changes in temperature. And the components must be as small as possible so that the motor fits into the wheel. "We are now producing coils using casting technology. This makes it possible to produce electrical motors that are not only more compact, but are also higher performing and more cost-efficient," said Felix Horch, project manager at the Fraunhofer Institute for Manufacturing Technology and Applied Materials Research IFAM in Bremen, Germany.

Cambridge, Mass. – April 2, 2011 – Engineers may soon be singing, "I'm going to wash that gray right out of my nanowires," thanks to a colorful discovery by a team of researchers from Harvard University and Zena Technologies. In contrast to the somber gray hue of silicon wafers, Kenneth B. Crozier and colleagues demonstrated that individual, vertical silicon nanowires can shine in all colors of the spectrum.

CHAMPAIGN, Ill. — With the first observation of thermoelectric effects at graphene contacts, University of Illinois researchers found that graphene transistors have a nanoscale cooling effect that reduces their temperature.

Led by mechanical science and engineering professor William King and electrical and computer engineering professor Eric Pop, the team will publish its findings in the April 3 advance online edition of the journal Nature Nanotechnology.

A lack of vitamin D, even in generally healthy people, is linked with stiffer arteries and an inability of blood vessels to relax, research from the Emory/Georgia Tech Predictive Health Institute has found.

The results add to evidence that lack of vitamin D can lead to impaired vascular health, contributing to high blood pressure and the risk of cardiovascular disease. Study participants who increased their vitamin D levels were able to improve vascular health and lower their blood pressure.

ORLANDO, Fla. — Smoking increases the risk of breast cancer, but the risk differs by obesity status in postmenopausal women, according to data from an analysis of the Women's Health Initiative observational study.

A significant association between smoking and breast cancer risk was observed in non-obese women, but not in obese women. The results were similar regardless of whether obesity was defined by body mass index (BMI) or waist circumference.

ORLANDO, Fla. — Scientists have confirmed that metabolic syndrome, a constellation of conditions that increases the risk of heart disease and diabetes, may also increase the risk of the two most common types of liver cancer, according to data presented at the AACR 102nd Annual Meeting 2011, held here April 2-6.

Dallas, TX (April 3, 2011) – A large, multi-year study of antibiotic use in Veterans Health Administration's acute care facilities demonstrates dramatically increased use of carbapenems, a powerful class of antibiotics, over the last five years. These drugs are often considered the last treatment option for severe infections with multi-drug resistant pathogens. The increased carbapenem use, which has also been described in non-VA facilities in the US, is alarming because carbapenem-resistant bacteria are becoming more common.

Boston, MA - Tiny particles only billionths of a meter in diameter—about two thousand would fit across the width of a human hair—could offer big hope in a small package to the many millions of people who are allergic to the nickel in everything from jewelry to coins and cell phones, say scientists at Brigham and Women's Hospital (BWH).

In the April 3 online issue of Nature Nanotechnology, the team will report a new approach to preventing the common skin allergy.

CHAMPAIGN, Ill. — With the first observation of thermoelectric effects at graphene contacts, University of Illinois researchers found that graphene transistors have a nanoscale cooling effect that reduces their temperature.

Led by mechanical science and engineering professor William King and electrical and computer engineering professor Eric Pop, the team will publish its findings in the April 3 advance online edition of the journal Nature Nanotechnology.