Tech

Computers in your clothes? A milestone for wearable electronics

COLUMBUS, Ohio -- Researchers who are working to develop wearable electronics have reached a milestone: They are able to embroider circuits into fabric with 0.1 mm precision -- the perfect size to integrate electronic components such as sensors and computer memory devices into clothing.

Riddle of missing efficiency in zinc oxide-based dye-sensitised solar cells solved

This explains why zinc-oxide (ZnO) dye-sensitised solar cells have not yet met expectations. The results evolved from collaboration between Monash University (Australia) and Joint Lab partners Helmholtz Zentrum Berlin (HZB) and the Freie Universität Berlin (FU Berlin). They have now been published online by Nature in the open access magazine Scientific Reports.

Simulating CO2 saturation in rocks gives potential breakthrough in carbon capture, storage

Fukuoka, Japan - Carbon capture and storage (CCS) is a relatively new method for capturing carbon dioxide (CO2) emissions from power stations and industrial processes and pushing the greenhouse gas underground to prevent it from entering the atmosphere. Suitable locations for CCS include depleted oil and gas fields or deep aquifers. A detailed understanding of the passage of fluid within the rocks of these target locations is imperative for ensuring that CO2 is stored effectively and leakage risk is minimized.

New method to preserve microfluidic devices for HIV monitoring in developing countries

Providing vital health care services to people in developing countries without reliable electricity, refrigeration and state-of-the-art medical equipment poses a number of challenges. Inspired by pregnancy tests, researchers from Florida Atlantic University, Stanford University, and Baskent University in Turkey, have developed a novel method to store microfluidic devices for CD4 T cell testing in extreme weather conditions for up to six months without refrigeration.

Fast food may expose consumers to harmful chemicals called phthalates

WASHINGTON, DC (April 13, 2016) -- People who reported consuming more fast food in a national survey were exposed to higher levels of potentially harmful chemicals known as phthalates, according to a study published today by researchers at Milken Institute School of Public Health (Milken Institute SPH) at the George Washington University. The study, one of the first to look at fast-food consumption and exposure to these chemicals, appears in the journal Environmental Health Perspectives.

US doctors report reconstructing new esophagus tissue in a critically ill patient

Writing in The Lancet, US doctors report the first case of a human patient whose severely damaged esophagus was reconstructed using commercially available FDA approved stents and skin tissue. Seven years after the reconstruction and 4 years after the stents were removed, the patient continues to eat a normal diet and maintain his weight with no swallowing problems.

Lowering cholesterol with veg oils may not curb heart disease risk or help you live longer

Replacing saturated fats with vegetable oils rich in linoleic acid lowers blood cholesterol, but doesn't curb heart disease risk or help you live longer, suggests a study published by The BMJ today.

The findings add to doubts around the widely held belief that vegetable oils rich in linoleic acid are good for heart health.

The traditional "diet-heart hypothesis" predicts that replacing saturated fat with vegetable oils rich in linoleic acid will reduce cardiovascular deaths by lowering blood cholesterol levels.

Did butter get a bad rap?

CHAPEL HILL, NC - A research team led by scientists at the UNC School of Medicine and the National Institutes of Health has unearthed more evidence that casts doubt on the traditional "heart healthy" practice of replacing butter and other saturated fats with corn oil and other vegetable oils high in linoleic acid.

Standing up for comfort

Recent studies have suggested that sitting at the computer all day can negatively affect your health. Sit-stand computer workstations are intended to provide a healthier and more comfortable work environment. But how do you find the best setup of workstation components for a standing workstation? And should it be the same as the setup you use when you're sitting down?

A flexible camera: A radically different approach to imaging

New York, NY--April 12, 2016--A team led by Shree K. Nayar, T.C. Chang Professor of Computer Science at Columbia Engineering, has developed a novel sheet camera that can be wrapped around everyday objects to capture images that cannot be taken with one or more conventional cameras.

Bringing the landslide laboratory to remote regions

WASHINGTON, D.C., April 12, 2016 - It'd be hard to overstate how landslide-prone China's Loess Plateau is; thanks to millions of years' accumulation of the wind-deposited, highly-porous sediment from which the plateau takes its name, the region has been called the most erosion-prone on Earth.

PolyU develops solar cells with highest power conversion efficiency

Perovskite solar cells first appeared in 2009 with an efficiency of just 3.8%. With the outstanding photovoltaic properties, perovskite solar cell has become a subject of vigorous research for sustainable power generation, with researchers around the world finding new ways to increase its energy conversion efficiency. It has currently established itself as one of the most promising solar cell materials.

Commonly used strategy for website protection is not waterproof

Cloud-based security providers commonly use DNS redirection to protect customers' websites. The success of this strategy depends on shielding the website's original IP address. Computer scientists from KU Leuven, Belgium, and digital research centre iMinds have now revealed that the IP address can be retrieved in more than 70% of the cases. This means that the DNS redirection security mechanism can easily be bypassed.

Researchers generate clean energy using bacteria-powered solar panel

BINGHAMTON, NY - Researchers have taken the next step in the evolution of bacteria-powered energy.

For the first time ever, researchers connected nine biological-solar (bio-solar) cells into a bio-solar panel. Then they continuously produced electricity from the panel and generated the most wattage of any existing small-scale bio-solar cells - 5.59 microwatts.

Battery components can take the heat

Rice University materials scientists have introduced a combined electrolyte and separator for rechargeable lithium-ion batteries that supplies energy at usable voltages and in high temperatures.

An essential part of the nonflammable, toothpaste-like composite is hexagonal boron nitride (h-BN), the atom-thin compound often called "white graphene."