Extreme stretch-growth of axons
...al stretch-growth in axons. "We know that it's not tension on the neuron itself, but tension on the axon," says Smith. "It's deformation, a pulling on the axon." At this point, it is unclear wh...Battle between bubbles might have started evolution
...e membrane vesicles, this internal pressure puts a tension on the membrane, which tries to expand. We propose... with sucrose in which there was greater membrane tension did, indeed, grow by drawing membrane material from those without sucrose. "Once we had some under...Why some neonates need caffeine
...se the number of apneic spells, and reduce partial tension of carbon dioxide (PCO2) and the need for (and duration of) mechanical ventilation. Peripheral chemoreceptors, found in the carotid and aortic bodies and stimulated by chemical changes in blood composition, provide feed-forward control of respiratio...Bacteria spill their guts to aid researchers in quest for new antibiotics
...through a process called "gating" in order to keep tension on the membrane steady. This gating process allows...hat detects mechanical force created by changes in tension in a cell's membrane. Changes in membrane tension are brought about when the concentration of the fl...Chemical Society announces EPA awards for environmentally friendly technology
...d soil remediation. Surfactants reduce the surface tension of water and are found in many consumer and industrial products, including soaps, laundry and hard surface cleaners. Most surfactants are petroleum-based and some are harmful to the environment. Rhamnolipid biosurfactants are readily biodegradable, d...Proteins transform DNA into 'molecular velcro'
...nd protein was able to recondense the DNA when the tension on the DNA was lowered. The researchers' analyses led them to propose a model of how the string of condensin proteins interacts to condense the DNA molecule. They theorize that the "heads" of the condensin proteins attach themselves sequentially...DFG establishes first German-Sino Research Training Group
...n historical concepts that have developed from the tension between events and process since the end of the 18th century. The project will focus on the effectiveness of the media in different cultures as well as how media and media techniques determine how their own history is written. The new Research Traini...New way to lock DNA-slicing enzyme onto chromosomes could lead to novel anti-cancer drugs
...DNA next to Top 1 to rotate and reduce some of the tension in that part of the twisted molecule. This in turn paves the way for other enzymes to unravel the DNA and either decode a specific gene or duplicate the entire chromosome. Normally, Top 1 moves along the DNA, clipping the strand as it goes, while th...Multiphoton microscope observes cell membrane action
...pear to involve the disappearance of boundary-line tension as the two phases merge into a single one at higher temperatures. The study was supported, in part, by a National Institutes of Health grant to the Developmental Resource for Biophysical Imaging Opto-Electronics (DRBIO) at Cornell and by a Keck Foun...Unique two-part macroemulsion offers new approach to cleaning up contaminated aquifers
...oppings and shampoos which reduce the interfacial tension to separate the solvent from soil particles. The patent-pending technique developed by Pennell and collaborators C. Andrew Ramsburg, Tohren C.G. Kibbey and Kim F. Hayes combines both approaches, making the compounds lighter and their removal from t...JCI table of contents, July 15, 2003
...ith KGF Pulmonary surfactant lowers the surface tension at the air/liquid interface in the lung and prevents alveolar instability and small airway closure. Produced by type II alveolar epithelial cells, surfactant is composed predominantly of phospholipids. Understanding the regulation of lipid synthesis ...'Unzipping' double helix to study protein-DNA interaction
...bound protein molecule, a dramatic increase in the tension in the DNA followed by a sudden tension reduction is detected; and finally analyses of the unzipping forces and length of the DNA tether re...Scientists uncover amyloid-like proteins in bacteria
...that chaplins D-H may help lower the water surface tension to facilitate the breakthrough of aerial structures into air. The identification of the chaplin proteins in Streptomyces potentially has important implications for its use by the pharmaceutical industry. "Chaplins adopt an amyoid-like structure, and...Pheromones in male perspiration reduce women's tension, alter hormone response
...on women: It can brighten women's moods, reducing tension and increasing relaxation, and also has a direct effect on the release of luteinizing hormone, which affects the length and timing of the menstrual cycle. The results will be published in June in the journal Biology of Reproduction and currently appe...Birth control pill may provide relief for PMS
...stlessness, irritability, mood swings, depression, tension and food cravings) during the four days before the period and during menstruation. For these patients, the improvement in negative affect also extended into the remainder of the cycle (except crying and loneliness). For patients who had switched to Y...Worlds leading journal editors urge self-governance and responsibility ...
...rial, Science Editor Donald Kennedy noted that the tension between scientific publication and security is not new: It emerged in a very problematic way in the early 1980s, when regulations designed to prevent the transfer of weapons specifications were suddenly applied to basic research, prompting a report o...Researchers develop 'natural bandages' that mimic body's healing process
... force of the electric field overcomes the surface tension of the solution. This forms a liquid jet that is transformed into a dry fiber before it reaches the target. The solution is made with a high concentration that causes the polymer chains to intertwine. Instead of breaking into droplets just after the ...Sandia-aided method to heal wounded and diseased achieves US government acceptance
...ure gauge developed by Vaughn and Miller tests the tension of the Numobag wall, rather than puncturing it to ...sure. Because the Sandia researchers knew that the tension of the polyethylene surface was proportional to the internal pressure of the gas, they could create ...Revealed: How a master protein remodels chromosomes to orchestrate gene expression
...bases in BURs unpair easily when there is negative tension on the DNA helix; very short core regions in BURs resist pairing at all. "We reasoned that if these regions were biologically important, there must be an important protein associated with them," says Kohwi-Shigematsu. In a large protein array, using...Neural signal that helps wire up brains movement circuit identified
...em. Sensory neurons carry information about muscle tension and body position to motor neurons in the spinal cord to control muscle contraction. The researchers took pieces of spinal tissue from embryonic mice and found that sensory neurons stop growing and begin to branch ready to form a functional connectio...