Tech

NTU researchers develop world's smallest on-chip low-pass filter

NTU researchers develop world's smallest on-chip low-pass filter

A research team from Nanyang Technological University (NTU) has successfully designed the world's smallest on-chip low-pass filter which is 1,000 times smaller than existing off-chip filters.

Measuring sea-level rise in the Falklands

Sea levels around the Falkland Islands in the South Atlantic have risen since the mid nineteenth century and the rate of sea-level rise has accelerated over recent decades, according to newly published research. The findings are as expected under global warming and consistent with observations elsewhere around the globe.

New industrial application for revolutionary forensic metal fingerprinting technique

Groundbreaking research into fingerprint detection developed at the University of Leicester now has an industrial application, thanks to a new invention by the scientist who developed the technique.

How batteries grow old

WASHINGTON, D.C., (Oct. 19, 2010) -- In a laboratory at Ohio State University, an ongoing experiment is studying why batteries lose their ability to hold a charge as they age -- specifically lithium-ion batteries, which have generated a lot of buzz for their potential to power the electric cars of the future.

Preliminary results presented today at the AVS 57th International Symposium & Exhibition, taking place this week at the Albuquerque Convention Center in New Mexico, suggest that the irreversible changes inside a dead battery start at the nanoscale.

Batteries smaller than a grain of salt

WASHINGTON, D.C., (Oct. 19, 2010) -- Lithium-ion batteries have become ubiquitous in today's consumer electronics -- powering our laptops, phones, and iPods. Research funded by DARPA is pushing the limits of this technology and trying to create some of the tiniest batteries on Earth, the largest of which would be no bigger than a grain of sand.

These tiny energy storage devices could one day be used to power the electronics and mechanical components of tiny micro- to nano-scale devices.

Associations between drug company information and physicians' prescribing behavior

Information provided to physicians from the US and around the world directly by pharmaceutical companies can be associated with higher prescribing frequency, higher costs, and lower prescribing quality. Furthermore, exposure to pharmaceutical company information does not improve physician prescribing behavior. These are the findings of a systematic review by Geoffrey Spurling from The University of Queensland, Brisbane, Australia, and colleagues and published in this week's PLoS Medicine.

To be good, sometimes leaders need to be a little bad

Outgoing. Assertive. Calm. Practical. Decisive. These are obvious qualities that one would want in their leaders.

But what about, say, arrogant, hesitant, overly dramatic, inflexible, or being a "yes-man"? A new study has found that when it comes to leading, some of those negative personality traits aren't such a bad thing, either.

CRN responds to JAMA fish oil study

WASHINGTON, D.C., October 19, 2010—In response to a study regarding fish oil use during pregnancy published in the October 19 issue of the Journal of the American Medical Association (JAMA), the Council for Responsible Nutrition (CRN), the leading trade association for the dietary supplement industry, reminds pregnant and lactating women of the undisputed importance of consuming the recommended amounts of docosahexaenoic acid (DHA) throughout pregnancy.

McSleepy meets DaVinci

In a world first, a completely robotic surgery and anesthesia has been performed at the McGill University Health Centre (MUHC). The DaVinci surgical robot, which lets surgeons work from remote locations, was put to work this summer, whereas the anesthesia robot, nicknamed McSleepy, has been providing automated anesthesia since 2008. The two combined to perform the first all-robotic surgery on a prostatectomy patient at the Montreal General Hospital.

Implementing program for operating room staff emphasizing teamwork appears to reduce surgical deaths

Hospitals that had operating room personnel participate in a medical team training program that incorporates practices of aviation crews, such as training in teamwork and communication, had a lower rate of surgical deaths compared to hospitals that did not participate in the program, according to a study in the October 20 issue of JAMA.

Study rejects benefits of fish oil capsules in pregnancy

A University of Adelaide study has found no evidence that taking fish oil capsules during pregnancy can help reduce the risk of post-natal depression, contrary to international recommendations.

In an article published today in the Journal of the American Medical Association, Professor Maria Makrides says a study of 2400 pregnant women in five Australian maternity hospitals between 2005 and 2009 supports this finding.

Iowa State, USDA researchers discover eye test for neurological diseases in livestock

AMES, Iowa – The eyes of sheep infected with scrapie – a neurological disorder similar to mad cow disease – return an intense, almost-white glow when they're hit with blue excitation light, according to a research project led by Iowa State University's Jacob Petrich.

Old logging practices linked to high erosion rates

Old logging practices linked to high erosion rates

Clear-cut logging and related road-building in the 1950s and 1960s in southern Oregon's Siskiyou Mountains disrupted soil stability and led to unprecedented soil erosion made worse during heavy rainstorms, report University of Oregon researchers.

Sniffing out shoe bombs: A new and simple sensor for explosive chemicals

CHAMPAIGN, Ill. — University of Illinois chemists have developed a simple sensor to detect an explosive used in shoe bombs. It could lead to inexpensive, easy-to-use devices for luggage and passenger screening at airports and elsewhere.

Triacetone triperoxide (TATP) is a high-powered explosive that in recent years has been used in several bombing attempts. TATP is easy to prepare from readily available components and has been difficult to detect. It defies most standard methods of chemical sensing: It doesn't fluoresce, absorb ultraviolet light or readily ionize.

Intricate, curving 3-D nanostructures created using capillary action forces

Intricate, curving 3-D nanostructures created using capillary action forces

ANN ARBOR, Mich.---Twisting spires, concentric rings, and gracefully bending petals are a few of the new three-dimensional shapes that University of Michigan engineers can make from carbon nanotubes using a new manufacturing process.