Tech

Childhood obesity: The increasing vascular drama

Barcelona, Spain, 31 August: Obesity is one of the most important health problems in industrialized countries irrespective of socio-economic status, age, sex or ethnicity. The prevalence of childhood obesity in children has reached alarming levels, even in developing countries. It is estimated that about 1 billion people worldwide are overweight, with 22 millions being under the age of 5 years and 300 million people are obese. By 2010 it is estimated that 26 million children in E.U. countries will be overweight, including 6.4 million who will be obese.

Infective endocarditis: An old but changing disease

Barcelona, Spain, 31 August: Infective endocarditis (IE) is a severe form of valve disease characterized by infection located in the valves of the heart. It is still associated with a high mortality (10-26% in-hospital mortality). IE is a rare disease, with reported incidences ranging from 3 to 10 episodes/100,000 people per year.

Opals set to shine with new grading technology

CSIRO and a consortium of Australian Opal miners (Opal Producers Australia Limited) have unveiled the world's first automated device to grade opals using image analysis, at the 2009 National Council of Jewellery Valuers forum in Sydney.

CSIRO Mathematical and Information Sciences image analyst Leanne Bischof helped develop the Gemmological Digital Analyser (GDA).

Ms Bischof said that opals have a unique range of colour characteristics that makes them by far the most difficult gemstone to appraise.

Removing the barriers of autism

Autism can build a wall of poor communication between those struggling with the condition and their families. While a personal computer can help bridge the divide, the distraction and complexity of a keyboard can be an insurmountable obstacle.

Using a unique keyboard with only two "keys" and a novel curriculum, teachers with Project Blue Skies are giving children with autism the ability to both communicate and to explore the online world.

New era in optical science: World's smallest semiconductor laser

Berkeley -- Researchers at the University of California, Berkeley, have reached a new milestone in laser physics by creating the world's smallest semiconductor laser, capable of generating visible light in a space smaller than a single protein molecule.

Now possible: Counting duplicated genome segments

A newly designed computational method has proven its usefulness in counting copies of duplicated genome sequences and in doing initial assessments of their contents, according to a study to be published Aug. 30 in Nature Genetics. The number of copies of particular DNA segments can differ from one person to the next.

IBM Scientists First to Image 'Anatomy' of a Pentacene Molecule

IBM scientists have been able to image the 'anatomy', that is chemical structure, inside a molecule with unprecedented resolution, using a complex technique known as noncontact atomic force microscopy.

The results push the exploration of using molecules and atoms at the smallest scale and could greatly impact the field of nanotechnology, which seeks to understand and control some of the smallest objects known to mankind.

New tool to predict the risk of death in COPD may help physicians to individualize treatment

Researchers have developed an index scale to help physicians predict a patient's risk of dying from chronic obstructive pulmonary disease (COPD). The ADO index can help physicians assess the severity of a patient's illness to determine the appropriate level of treatment. COPD, which comprises emphysema and chronic bronchitis, is a major public health problem and it is the fourth leading cause of death in the U.S. The study of the ADO index is published in the August 29 edition of the Lancet.

Suburbanization: The impact on energy use, CO2 emissions

A new congressionally mandated report from the National Research Council, DRIVING AND THE BUILT ENVIRONMENT: THE EFFECTS OF COMPACT DEVELOPMENT ON MOTORIZED TRAVEL, ENERGY USE, AND CO2 EMISSIONS, examines how suburbanization -- made possible largely due to the prevalence of automobiles and the extensive U.S. highway system -- impacts the number of miles we drive, our reliance on petroleum fuel, and the percent of greenhouse gas emissions from transportation.

ASN committed to managing conflicts of interest

Twenty-six million Americans suffer from kidney disease, and for decades nephrologists in academia, practice, and industry have enhanced their quality of care. To ensure that partnerships between the American Society of Nephrology (ASN) and industry continue to improve kidney health, ASN leaders convened the Committee on Corporate Relations in 2008. Publications resulting from this committee's efforts set will help guide medical societies and industry in their efforts to advance patient care, research, and education.

Scientists detect 'fingerprint' of high-temp superconductivity above transition temperature

UPTON, NY — A team of U.S. and Japanese scientists has shown for the first time that the spectroscopic "fingerprint" of high-temperature superconductivity remains intact well above the super chilly temperatures at which these materials carry current with no resistance. This confirms that certain conditions necessary for superconductivity exist at the warmer temperatures that would make these materials practical for energy-saving applications — if scientists can figure out how to get the current flowing.

Researchers pinpoint neural nanoblockers in carbon nanotubes

PROVIDENCE, R.I. [Brown University] — Carbon nanotubes hold many exciting possibilities, some of them in the realm of the human nervous system. Recent research has shown that carbon nanotubes may help regrow nerve tissue or ferry drugs used to repair damaged neurons associated with disorders such as epilepsy, Parkinson's disease and perhaps even paralysis.

NASA's satellite imagery sees Hilda hit a wall

Two days ago, Hilda was in prime shape to strengthen further as she tracked westward, far south of the Hawaiian Islands. Today, as a result of winds and cooler waters, she's weakened to a tropical depression, and NASA satellites helped confirm that looking at her waning winds and thunderstorms.

Radiologists, medical physicists work to make imaging procedures safer

OAK BROOK, Ill. – The Radiological Society of North America (RSNA) reaffirmed its commitment to patient safety today in responding to a study and accompanying perspective on radiation dose from medical imaging procedures in the New England Journal of Medicine (NEJM).

ESA helps make summer in the city more bearable

As temperatures soar, scientists have been collecting data amid the ancient ruins that symbolise the birthplace of western culture. These data, combined with measurements from aircraft and satellites, promise to improve 'urban heat island' forecasts to make life in modern-day Athens easier during heat waves.