Scientists are reporting the first evidence that China's sharp focus on reducing widespread damage to soil by acid rain by restricting sulfur dioxide air pollution may have an unexpected consequence: Gains from that pollution control program will be largely offset by increases in nitrogen emissions, which the country's current policy largely overlooks. The study, which suggests that government officials adapt a more comprehensive pollution control strategy that includes a new emphasis on cutting nitrogen emissions, is scheduled for the Nov.
Tech
PITTSBURGH—Researchers at Carnegie Mellon University and Intel Labs Pittsburgh (ILP) have combined low-power, embedded processors typically used in netbooks with flash memory to create a server architecture that is fast, but far more energy efficient for data-intensive applications than the systems now used by major Internet services.
Economy-minded consumers who want protection from the sun's harmful ultraviolet (UV) rays — but rather not pay premium prices for sun-protective clothing — should think blue and red, rather than yellow. Scientists in Spain are reporting that the same cotton fabric dyed deep blue or red provide greater UV protection than shades of yellow. Their study, which could lead to fabrics with better sun protection, is scheduled for the Nov. 4 issue of ACS' Industrial & Engineering Chemistry Research, a bi-weekly journal.
Supervised exercise programmes that include high and low intense cardiovascular and resistance training can help reduce fatigue in patients with cancer who are undergoing adjuvant chemotherapy or treatment for advanced disease. The exercise training also improves patients' vitality, muscular strength, aerobic capacity and emotional well-being, according to research published on bmj.com today.
The Naval Research Laboratory's (NRL's) Ion Tiger, a hydrogen-powered fuel cell unmanned air vehicle (UAV), has flown 23 hours and 17 minutes, setting an unofficial flight endurance record for a fuel-cell powered flight. The test flight took place on October 9th through 10th at Aberdeen Proving Ground. The Ion Tiger fuel cell development system team is led by NRL and includes Protonex Technology Corporation, the University of Hawaii, and HyperComp Engineering. The program is sponsored by the Office of Naval Research (ONR).
Patients who received the less-invasive endovascular repair of an abdominal aortic aneurysm had a lower risk of death in the first 30 days after the procedure compared to patients who an open repair, but both procedures had similar rates of death after two years, according to a study in the October 14 issue of JAMA, a theme issue on surgical care.
Frank A. Lederle, M.D., of the Veterans Affairs Medical Center, Minneapolis, presented the findings of the study at a JAMA media briefing in Chicago.
Electric mobility is becoming increasingly important. The German government's ambitious plan envisages one million electric cars being sold in Germany by the year 2020. Until then, however, researchers still have to overcome some hurdles, such as the question of energy storage. Lithium-ion batteries offer a possible solution, but it takes hours to charge them – time that an automobile driver doesn't have when on the road. Researchers from the Fraunhofer Institute for Chemical Technology ICT in Pfinztal near Karlsruhe see an alternative in redox flow batteries.
Rockville, MD – At the moment, doctors rely on biopsy analysis to determine the progression of eye cancer. However, researchers now believe that a new technology, bioluminescence imaging (BLI), will allow doctors to detect tumors earlier and quickly choose a method of treatment that doesn't necessarily involve eye surgery.
Teenage boys in Sweden take less responsibility than girls for preventing the spread of chlamydia and other sexually transmitted infections, according to a new study from the Sahlgrenska Academy at the University of Gothenburg, Sweden.
The study was published in the journal Midwifery and was carried out in primary care in the Västra Götaland region of Sweden.
New drive technologies combined with lighter and stronger materials will make the airplanes and automobiles of the future more fuel-efficient. But a number of technical details need to be resolved first. Magnetic ball valves are one example – for them to react extremely quickly, the balls must be as light as possible, and the same applies to rapidly moving bearings. Hollow spheres made of steel represent a solution.
The UK National Health Service could save millions of pounds a year by routinely using inexpensive dressings to treat venous leg ulcers, after a study published in the October issue of BJS showed that they are just as effective as expensive silver dressings in the majority of cases.
Researchers, led by Professor Jonathan Michaels from the Sheffield Vascular Institute and Professor Bruce Campbell from the Royal Devon and Exeter Hospital, studied 213 leg ulcer patients who received either standard low-adhesive dressings or antimicrobial silver-donating dressings.
Recently, at Arizona State University's Biodesign Institute, N.J. Tao and collaborators have found a way to make a key electrical component on a phenomenally tiny scale. Their single-molecule diode is described in this week's online edition of Nature Chemistry.
A team of scientists at the National Cancer Institute (NCI) in Bethesda, USA, says that studying pet dogs with cancer could yield valuable information on how to diagnose and treat human cancers. In this week's PLoS Medicine, the team discusses an ongoing initiative in which spontaneously occurring cancers in dogs are being studied to help inform the development of new cancer drugs, devices and imaging strategies for human cancer patients.
COLUMBUS, Ohio – Women abused by intimate partners suffer higher rates of a wide variety of doctor-diagnosed medical maladies compared to women who were never abused, according to a new study of more than 3,000 women.
Many of these health problems are not commonly understood as being associated with violence, such as abdominal pain, chest pain, headaches, acid reflux, urinary tract infections, and menstrual disorders.
Visual problems that cannot be corrected are associated with increased risk of death among individuals between the ages of 49 and 74, and all visual impairments may be associated with the risk of death in older adults, according to a report in the October issue of Archives of Ophthalmology, one of the JAMA/Archives journals.