Beyond batteries: Storing power in a sheet of paper
...nted in the body. The team printed paper batteries without adding any electrolytes, and demonstrated that nat... a way to power a small device such as a pacemaker without introducing any harsh chemicals such as the kind that are typically found in batteries into the bo...Pollution causes 40 percent of deaths worldwide, study finds
...world's people are crowded into urban areas, often without adequate sanitation, and are exposed to epidemics of such diseases as measles and flu. With 1.2 billion people lacking clean water, waterborne infections account for 80 percent of all infectious diseases. Increased water pollution creates breedin...Which came first, the moth or the cactus?
...olland said he and his students sometimes go weeks without seeing other people at the sites, with the exception of a cowboy on horseback here and there. There isn't much to see on the long drives to and from Houston either, but Holland said hours of solitude provide a valuable time for thinking and synthes...Interaction of just 2 genes governs coloration patterns in mice
...ti gene can increase the amount of protein present without changing the protein's sequence, also reducing Mc1r activity and yielding lighter pigmentation. Both genes affect the type and amount of melanin in individual hairs. When both genes are turned on, the mouse is dark in color. A mutation that changes...Bursts of waves drive immune system 'soldiers' toward invaders
...ment and inhibition, as it is called, can continue without "orders" from another part of the cell, the scientists report. "One of the things that I find fascinating about these waves is how relatively simple patterns of protein interaction can generate very complex behaviors," says Weiner. "Evolution has ...Doernbecher Children's Hospital scientist earns coveted Javits award
...ses movement disorders, including inability towalk without an assistive device, inability to use one's arms and legsand weak torso muscles; as well as, intellectual challenges, includingthinking, reasoning, remembering, imagining or learning words. Premature birth is the leading cause of cerebral palsy, ex...Gene regulation, not just genes, is what sets humans apart
...ory changes have adapted to changing circumstances without changing the essential chemistry of metabolism, Wray said. This may set the stage for a more focused analysis of the human diet. Much is being written and hypothesized about how dietary changes have contributed to the current human pandemics of obe...MIT creates 3-D images of living cell
...ed images yet of what goes on inside a living cell without the help of fluorescent markers or other externall...chnique is that it can be used to study live cells without any preparation, said Kamran Badizadegan, principal research scientist in the Spectroscopy Laborator...High blood pressure, low energy -- a recipe for heart failure
...sm, Kelly and his colleagues report that mice born without any ERR alpha developed symptoms of heart failure ...cle to manufacture more high energy compounds, and without ERR alpha, they can't do it," explains Kelly, the Tobias and Hortense Lewin Professor and Chief of t...Abnormal fat metabolism underlies heart problems in diabetic patients
...hits people with diabetes twice as often as people without diabetes. In those with diabetes, cardiovascular complications occur at an earlier age and often result in premature death, making heart disease the major killer of diabetic people. But why is heart disease so prevalent among diabetics? To help answe...A unique arrangement for egg cell division
...mammalian oocytes could assemble a bipolar spindle without such centrosomes. Tracking spindle assembly over time with a high resolution microscope in live mouse oocytes, Ellenberg and his PhD student Melina Schuh found that the missing centrosomes are replaced by a flexible system of many small microtubule o...Cardio exercise benefits in male vs. female hearts
...ntrol group of mice under the same conditions, but without the exercise wheel. Each mouse's daily distance, time, and average speed were recorded. Their hearts were monitored using an echocardiograph to better evaluate any cardiac changes during the course of the study. They also isolated and analyzed the RN...Testosterone replacement therapy: How safe for aging men?
...vents the development of hypertensive renal injury without altering existing hypertension levels. The Big Picture The study is part of the researchers ongoing project to investigate the effects of testosterone-supplementation in animal models of disease that mimic the characteristics of the human male po...Grapes, soy and kudzu blunt some menopausal side effects
...to have some beneficial effects similar to HRT but without the appreciable adverse effects. Grape, soy and kudzu are dietary polyphenols. One research lab investigating them through several studies has found they can blunt cognitive loss, hypertension and insulin resistance in an experimental model. The...Ecologists work to link kids with nature
...ouch flowers and know why some plants cant survive without pollinators such as bees. It also doesnt hurt to know the difference between a harmless king snake and a venomous coral snake! Richard Louv notes in his book that children growing up over the last 20 years have increasingly limited experience of t...Bacteria you can live without em, but it wont do you any good, according to a study of fruit flies by University of Southern California biologists. Flies scrubbed clean of bacteria did not outlive their grubby siblings, the researchers report in the August 8 issue of Cell Metab...Argonne wins three R&D 100 awards for innovative technologies
...pidemiologists and immunologists to treat patients without exposing others to infection during the SARS epidemic in 2003. Developers are Argonne Senior Software Developers Ivan R. Judson and Thomas D. Uram, Research Manager Michael E. Papka, Associate Laboratory Director for Computer and Life Sciences Rick...In limiting life span, study finds booming bacteria innocent
... flies expend to fight their burgeoning bugs comes without a longevity trade-off, the researchers said. Its...mount a strong innate immune response against them without cutting their 65-day lives any shorter. There has been some thinking in general that life span is ...High-intensity ultrasound may launch attack on cancer, wherever it lurks
...ic cancers that have spread to other organs -- all without the need for surgery, the research team reported in the Journal of Translational Medicine on Aug. 3 (a provisional version appeared online on July 11). The work, done by the engineers in collaboration with cancer immunologists and physicians at the D......est. Pairs of pictures which only showed the face without any hair, ears, neck, shoulders or clothing visible, were presented side by side. The participants were asked to select which face they thought was more of a particular trait and how much more so by clicking on a point of the scale. Traits selected...