Plants provide model for new shape-changing materials
...act, we hope to move on from the morphing wings to other applications that require structures that can produce large shape changes. An example might be a compact container that will deploy into an antenna after it is transported to a particular location," Leo said. "Biological systems are excellent templa...Intelligent clothing inspired by pine cones
...po is expected to attract 15 million visitors, and other UK science projects will be the Eden Project and the Millennium Seed Bank at Kew. The smart garments will consist of a top layer of tiny spikes of water-absorbent material, possibly wool, each only 1/200th of a millimetre wide. When the wearer of the...Head lice reveal contact between modern and ancient humans
...d body forms and has a worldwide distribution; the other contains only the head louse and is restricted to ...suggest, might now best be pursued by studying the other human louse P. pubis , which requires sexual contact for transmission. ...Use of aspirin or other NSAIDs increases survival
Regular use of aspirin or other non-steroidal anti-inflammatory drugs (NSAIDs) see...d overall survival, even after taking into account other variables such as age, Gleason score and radiation dose. Laboratory studies have suggested that ...Good news: As you age, leg blood vessels adapt so you can still exercise without fainting
...cardiac output during exercise," they reported. In other words, older adults may require a higher level of vascular "restraint" to preserve systemic blood pressure during exercise, Proctor said. "We expected the blood vessels in the older men to constrict less (relative to younger men) du...Running not swimming or biking is best kind of loading exercise for childrens bone growth
...on and age-related effects of exercise, among many other topics, including development of an exercise "osteogenic index" or OI. The paper appeared in the "Exercise and Sport Sciences Reviews." Among the OI observations were: (1) "short intense exercise bouts build bone most effectively, hence short sprint...Research out this week helps us understand basics of how neurons communicate
...d a neurotransmitter that then carries a signal to other nerve cells. Calcium cannot freely enter cells, and must wait for an opening of a molecular gate, which is called a calcium channel. "In this study we removed a specific part of the calcium channel molecule called the 'synaptic protein interaction si...Putting physiology into the Nobel Prize: 2004 marks 100th anniversary of Pavlov's award
...on presents itself," Smith added. Some of Pavlov's other major accomplishments still seen today: Humane treatment of animals. When he got his own laboratory, Pavlov designed and built animal housing and surgical areas incorporating the latest aseptic and recovery techniques used for humans. "Chronic ex...Protein energy profiles offer clues about amyloids
...some molecules, cleave others into pieces and fuse other molecules together. Since the function of a protei...re proteins that make or disrupt chemical bonds in other molecules -- individual atoms of a protein must be aligned just so if they are to function properly....New biosensor rapidly detects deadly foodborne pathogen
...er rates of hospitalization and mortality than any other foodborne illness, said Tao Geng, research associa...m all others makes this a very powerful sensor. No other sensor today can do that," he said. The sensor also is selective enough to recognize cells of ...September/October 2004 Annals of Family Medicine tip sheet
...lly relevant for young children, older persons and other dependent patients who rely on informal caregivers...al physician at the time of hospital admission and other life events, like a birth or death in the family. The study further found that although patients wan...Most promising clinical uses for stem cells from fat agreed on by international society
...nal studies have suggested they can be coaxed into other cell types, such as nerve, bone, muscle and blood ...bone injury, for example, while results looking at other uses are still quite preliminary. There are currently no human trials in the United States evalua...Low dose radiation evades cancer cells' protective 'radar'
...d to mistakes or mutations that are passed down to other generations of cells," explains DeWeese, chairman of the Department of Radiation Oncology and Molecular Radiation Sciences at Johns Hopkins. "A dead cell is better than a mutant cell, so if the damage is mild, cells die instead of risking repair." Hi...Irwin Rose wins 2004 Nobel Prize in Chemistry
...ns inside cells. In addition, it is now known that other modifiers, similar to ubiquitin, are used by the cell to regulate proteins in many ways. These findings are playing a key role in the development of drugs to fight illnesses such as cancer and cystic fibrosis. "The basic science faculty at the Co...NIH awards Emory and Georgia Tech $10 million for partnerships in cancer nanotechnology
...s also provides enough surface area for linking to other diagnostic and therapeutic agents." Dr. Nie and hi...peptides, proteins or DNA and engineered to detect other molecules, such as those present on the surface of cancer cells. Dr. Nie and his team will collabora...Marine Biological Laboratory summer investigator wins Nobel Prize in Chemistry
...uitin is a protein found within cells that targets other proteins for elimination. Scientists have long known that all cells manufacture and subsequently discard an array of proteins involved in a variety of cellular processes. Although many scientists over the years have focused their research on learning...Is Interleukin-6 the 'holy grail' of exercise mediation?
...or, which mediates some of the exercise effects in other tissues and organs such as the liver and adipose t...pt to overcome the impaired glucose uptake. And in other contexts, the current thinking is that IL-6 has primarily anti-inflammatory effects. It is this comb...Brain circuit may permit scientists to eavesdrop on memory formation
...sted by many researchers, said Schuman. Studies by other researchers have shown that there is distinctive coordinated brain activity between the hippocampus and neocortex during sleep, she said....New study will tackle three major killer diseases
...nt: there is less variety in occupations, diet and other factors compared with most other areas of Scotland. The stability of the population also allows family trees to be traced back as man......ave high levels of Mississippi River infiltration, other wells have intermediate levels and the remaining w...ns of Mississippi River water. This suggested that other unidentified sources, in addition to river water, were responsible for contamination. "The only ...