New research questions basic tenet of neuron function
... and release them when needed into the synapse, or space between nerve cells, where the chemical signal is transmitted to other neurons. It is known that synaptic vesicles release their neurotransmitters in two different "modes" ?one when the neuron is stimulated and actively relaying a message, and the o...Open microfluidic and nanofluidic systems
...s. Other applications include customized chips for space travel in order to monitor microbes inside spacecraft or to detect life on other planets. An obvious prerequisite for such miniaturized labs are appropriate microcompartments for the confinement of very small amounts of liquids and chemical reagents...Ice core 'dipstick' indicates West Antarctic ice has thinned less than believed
...said Edwin Waddington, a UW professor of Earth and space sciences. Like water on a hillside, Siple Dome ice flows down into adjacent ice streams, where it continues to the nearby Ross Ice Shelf, a part of a bay on the Ross Sea that is covered with floating glacier ice. "Then the whole thing spreads out l...Self-assembled nano-sized probes allow Penn researchers to see tumors through flesh and skin
...larger than phospholipids, so that there is enough space for the fluorophores, which are larger than the average molecule that is found inside cell membranes," said Hammer, professor and chair of the Department of Bioengineering at Penn's School of Engineering and Applied Sciences. " Another feature that m...Ophthalmologists Use Artificial Silicon Retina Microchip To Treat Vision Loss
...ye. According to Chow, "The use of the subretinal space to hold a device that artificially stimulates the retina seems a logical step in replacing the loss of photoreceptor cells of the retina. If the implant is tolerated well and is able to successfully stimulate the retina, it may open up new opportunit...Ophthalmologists implant five patients with artificial silicon retina microchip
...ye. According to Chow, "The use of the subretinal space to hold a device that artificially stimulates the retina seems a logical step in replacing the loss of photoreceptor cells of the retina. If the implant is tolerated well and is able to successfully stimulate the retina, it may open up new opportunit...NASA links nanobacteria to kidney stones and other diseases
...ronauts. With the potential for future exploratory space missions to the moon and Mars, longer missions, an...a bioreactor chamber which simulates conditions of space travel. In this microgravity environment, NB was found to multiply five times faster compared to nor...New online portal merges vast data on Gulf of Maine ecosystem
...f biological patterns in the Gulf of Maine, across space and time, and illuminate critical trends related to this important international resource," says Evan Richert, program director for the Gulf of Maine program. "The new portal is the door to a treasure of data, much of it essentially inaccessible befo...Molecule that usually protects infection-fighting cells may cause plaque deposits inside arteries
...become thicker and less elastic. This narrows the space for blood flow and can lead to angina and heart attacks in some people. Fatty buildups occur on the inner lining of an artery and gradually thicken into a plaque. As plaque grows, it narrows the artery more and more. When the plaque ruptures, blood c...Physiological effects of reduced gravity on bacteria
...ted to environmental alterations, such as those of space stations, which feature lowered effects of gravity...ant residents in water systems, including those of space stations, examination of responses to conditions like microgravity may offer significant insight int...Finding hidden invaders in a Hawaiian rain forest
...observed in one or a few places are distributed in space and time. These new methods discovered a consequence of biological invasion that had not been detected before AND showed how it varies across the landscape." "These findings are valuable to resource managers on two levels," remarked Tim Tunison, Chi...Bobbing birds do it for a reason
...ir point of gaze and probably to gather a sense of space and of the relative positions of objects when the head is thrust forward. ...... apparatus cannot objectively locate objects in 3D space (in a fixed-coordinate system), but only allows the user to subjectively observe where an object is in relation to other observable structures. Therefore, it is operator-dependent. The HUTT system transmits an extremely short ultrasonic pulse (about...Aircraft Cabin Ventilation Influences The Transmission Of Diseases In-flight
... pathogens. Proper ventilation within any confined space reduces the concentration of airborne organisms, with one air exchange removing 63% of airborne organisms suspended in that particular space. Computer models of data from an in-flight tuberculosis investigation reveal that doubling ventilation rate i...Life detection instrument passes key test on road to Mars
... of their instrument that would fit in the allowed space within the ExoMars spacecraft. "I'm much more optimistic that we could detect life on Mars, if it's there," Mathies said. ...Stem cell treatment improves mobility after spinal cord injury
...jury sites, they could not form myelin because the space surrounding neuron cells had been filled with scar tissue. In the presence of a scar, myelin could not grow. These studies indicate the importance of myelin loss in spinal cord injury, and illustrate one approach to treating myelin loss. Keirstead a...Scientists discover global pattern of big fish diversity in open oceans
...story, showing the distribution of big fish though space and time. It reveals that some areas recognized today as good fishing are perhaps even more important than we realize ?which makes it all the more urgent to protect these last remaining bits, say the authors. Today the east coast of the U.S., just s...New method shows it is possible to grow bone for grafts within a patient's body
...n hopes that the body would respond by filling the space with new bone. The approach lived up to their high...his collaborators decided to create the bioreactor space just under this outer layer. They created the space by making a tiny hole in the periosteum and inj...Neandertal femur suggests competition with hyenas and a shift in landscape use
...as. This shows that close competition for food and space persisted through the Middle Paleolithic among these Neandertals. ...Drawing with DNA: 'Bioart' illuminates genomics
...ns are rendered in a 40-foot wide and 12-foot tall space by five video projectors, with the figures for human genes/proteins shown along a vertical axis and for the rice along a horizontal. A whole-body computer vision interface tracks the movements of visitors and allows them to interact with the install...Female volunteers prepare for a second 'bedrest'
...e gradually returned to an upright position at the space medicine clinic at the French Institute for Space ...hich is due to begin in September, ESA, the French space agency CNES and the MEDES Institute are looking for twelve new female volunteers from the European U...Thinking the pain away? Study shows the brain's painkillers may cause 'placebo effect'
... brain's natural endogenous opioid painkillers for space on nerve cell receptors, the PET scans can be used to see how active the opioid system and mu-opioid receptors are. The stronger the positron signal from a particular brain region, the less active the mu opioid system, and vice versa. All of the par...Woods Hole Research Center plans controlled burn in Amazon rainforest
...s will allow us to better monitor forest fire from space and, eventually, to determine which forests are most susceptible to fire during the dry season." The "savannization experiment" is a learning laboratory for Brazilian students who live in the Amazon transition forest. School groups frequently visit ...3D Atlas Will Help Navigate The Spinal Cord
...s organization, and (c) provide the 3D stereotaxic space designed to become the knowledge management environment for experimental and, eventually, clinical observations. Though not itself directed at a cure for the consequences of spinal cord injury, the project will accelerate progress of such research b...Several minute intermediate stage in virus-cell fusion discovered; opportunity for drug development
... it fails to infect the cell at all. "It's like a space craft docking on a space station," said Young. "If you try to open the inner door before the pressures have equalized, you ca...Researchers make 'embryonic-like' stem cells from umbilical cord blood
...ers of cells in equipment mimicking the effects of space microgravity. "Using Synthecon's bioreactors, originally designed by NASA, means the cells are able to expand faster, giving us a greater supply to work with," Dr Forraz said. "This system provides more cells for more tests, so we have the potential ...Insight into the processes of 'positive' and 'negative' learners
...ers of cells in equipment mimicking the effects of space microgravity. "Using Synthecon's bioreactors, originally designed by NASA, means the cells are able to expand faster, giving us a greater supply to work with," Dr Forraz said. "This system provides more cells for more tests, so we have the potential ...Researchers propose measures to curb lion attacks in Tanzania
...ers of cells in equipment mimicking the effects of space microgravity. "Using Synthecon's bioreactors, originally designed by NASA, means the cells are able to expand faster, giving us a greater supply to work with," Dr Forraz said. "This system provides more cells for more tests, so we have the potential ...Ants, not evil spirits, create devil's gardens in the Amazon rainforest, study finds
...that by killing other plants, the insects create a space for young D. hirsuta saplings to grow, thereby allowing the ant colony to expand as it occupies new nesting sites in the saplings," Frederickson explains. To test this hypothesis, she and her colleagues conducted a series of experiments at the Madre...Gradient guides nerve growth down spinal cord
...owth of corticospinal axons when injected into the space between the dura and spinal cord in newborn mice. This knowledge, coupled with emerging stem cell technologies, may provide the most promising current approach to nervous system regeneration. If Wnt proteins could be used to guide transplanted nerve...Evolution of life on Earth may hold key to finding life in outer space
Questions about the existence of life in outer space may have a surprisingly close-to-home answer, acco... on Earth, the likelihood of finding life in outer space also increases. In "Fantasy Worlds," for each type of extremophile found, animators created a parall...Stressed cells spark DNA repair missteps and speed evolution
... rate of mutation occur only in a certain physical space at a certain time gives the cells advantage because it reduces the risk to the whole colony. DNA breaks occur only rarely in each individual cell. If the mutations are restricted in time and space, it reduces the risk that the mistakes in repair will...Surgical Robot 'Scrubs In' At UNC, May Be More Precise Than Conventional Surgery
... important in pediatric surgery, given the smaller space to operate, and for performing refined interventions very precisely," he said, adding that "the ultimate potential for the system, if the instruments can be made small enough, would be its use in fetal surgery, in utero." Since the arrival of the da...Screen all at risk for HIV, plus pregnant women
... important in pediatric surgery, given the smaller space to operate, and for performing refined interventions very precisely," he said, adding that "the ultimate potential for the system, if the instruments can be made small enough, would be its use in fetal surgery, in utero." Since the arrival of the da...FDA: 'Highly Unlikely' Green Tea Lowers Cancer Risk
... important in pediatric surgery, given the smaller space to operate, and for performing refined interventions very precisely," he said, adding that "the ultimate potential for the system, if the instruments can be made small enough, would be its use in fetal surgery, in utero." Since the arrival of the da...New discovery blurs distinction between human cells and those of bacteria
...is how nearly these six protein molecules fill the space between them. If you take six pennies and place them in the shape of a ring, that leaves a large space in the middle. Yet the shape of this protein molecule is such that when six proteins come together, ...Nighttime Dying Linked To Sleep Apnea From Brain Cell Loss
...is how nearly these six protein molecules fill the space between them. If you take six pennies and place them in the shape of a ring, that leaves a large space in the middle. Yet the shape of this protein molecule is such that when six proteins come together, ...Field tested: Grasslands won't help buffer climate change as carbon dioxide levels rise
...is how nearly these six protein molecules fill the space between them. If you take six pennies and place them in the shape of a ring, that leaves a large space in the middle. Yet the shape of this protein molecule is such that when six proteins come together, ...NC State researchers redesign life for Mars and beyond
...e of the stresses inherent with travel and life in space - extreme temperatures,drought, radiation and gravity, for example - are not easily remedied with traditional plant defenses. So Dr. Wendy Boss, William Neal Reynolds Distinguished Professor of Botany, and Dr.Amy Grunden, assistant professor of micr...Gene therapy works in mice to prevent blindness that strikes boys
...y version of the human RS1 gene to the sub-retinal space of the right eyes of 15-day-old male mice, which, like boys with the disease, don't have the healthy gene to maintain the retina. In terms of disease development, the condition in the mice was roughly equivalent to retinoschisis in a 10-year-old boy....Grabbing addiction by the tail
...its business end sticking out into the synapse, or space between neurons, the receptor no longer works. Wang's peptide tricks the cellular machinery into tugging on it instead of the receptor's tail. "Once it gets inside the neuron, the peptide competes with the receptor for binding to the machinery," Wa...Logging doubles threat to the Amazon, rivaling clear-cutting, study suggests
... of land, where all the trees are removed to clear space for farming or grazing. A new satellite imaging method, developed by Gregory Asner of the Carnegie Institution of Washington and colleagues, detects deforestation on a finer scale, allowing researchers to identify areas where trees have been thinne...NRL scientists detect 'milky sea' phenomena
...hat the detection of bioluminescence emission from space was unlikely if not impossible. Demonstration of their detection by low-light detectors on current and future satellite systems provides a possible means to targeting these events in the future by properly equipped research vessels. This creates opp...Breath of the dragon: ERS-2 and Envisat reveal impact of economic growth on China's air quality
...the retrieval of nitrogen dioxide variability from space and modelling its global behaviour. The team ha... nitrogen dioxide observed in the last decade from space and highlighted the dramatic changes over China. Nitrogen dioxide (NO2) is associated with nitroge...Pulp mill devastates swans' sanctuary in Chile
...s Valdivia ecoregion coordinator. "Now, within the space of just months, it has become an empty expanse of brown, polluted water. It is a water desert. Words really can't describe the magnitude of the disaster here." The investigators, who made two visits to the area, in August and October, affirmed earli...Deep treasure to be found in Oculina Bank
...m Oct. 12-18 on board the M/V Liberty Star, a NASA space shuttle support ship operated by United Space Alliance and normally used to retrieve spent solid rocket boosters. A second related expedition is planned for May 2006. To explore the reefs, researchers will be using NURC's Phantom SII Remotely Operate...The shape of things to come: Morphology database going global
...ckup copies and can reduce both the amount of disk space on each machine and the cost to any one institution. Although scientists will be the only ones to have access to the system to deposit, retrieve or comment on items, the system is free and may be viewed by anyone. "Everyone from kindergartners to t...Envisat radar surveillance protects endangered prehistoric fish
...calisation Satellites), a subsidiary of the French space agency CNES, the system is up and running at a time when overfishing has left the 40-million-year-old Patagonian toothfish species on the verge of extinction. Also found off South America, the toothfish has evolved anti-freeze components in its bl...University of Arizona plant scientists to unravel maize genome
...2006. "The new building will offer the increased space we need to expand our laboratory facilities for the project," Wing said. "It will also allow us to enhance capacities for computation. BIO5 makes large-scale endeavors like this possible by investing heavily in bioinformatics." Deciphering billions ...Penn study finds direct role for glial cells in brain cross-talk
...chemical signals called neurotransmitters across a space called the synapse. This process results in transmission of a nerve impulse. Historically, the glial cell or astrocyte was considered to be a support cell and to play no active role in regulating nerve impulse transmission. However, recent research ...Genetic analysis of Asian elephants in India reveals some surprises
...t certain to bring about increased competition for space between humans and elephants. Still, Melnick and his colleagues are confident that their work represents a crucial step in efforts to protect an animal that is deeply rooted in Indian culture. "If we are going to find a way to protect elephants for ...T-rays: New imaging technology spotlighted by American Chemical Society
...g and imaging technology, which can spot cracks in space shuttle foam, see biological agents through a seal... imaging has also successfully detected defects in space shuttle foam. Other T-ray applications could enable the label-free characterization of genetic mater...Stem cells from muscles can repair cartilage
... suggested that fatty tissue and tissue lining the space between joints (synovium) might also be sources of stem cells, obtaining these cells is more invasive than muscle biopsies. The author also notes that patients could potentially serve as donors to themselves, since the current study used MDSCs from j...K-State researchers study gene regulation in insects
..."We wanted to know how the same genes that slice a space like a loaf of bread can also add slices one at a time," Brown said. According to Brown, the groundwork for this research was laid about 20 years ago when scientists first learned about the genes that regulate embryonic development in the fruit fly....Scaled-down genome may power up E. coli's ability in lab, industry
..."We wanted to know how the same genes that slice a space like a loaf of bread can also add slices one at a time," Brown said. According to Brown, the groundwork for this research was laid about 20 years ago when scientists first learned about the genes that regulate embryonic development in the fruit fly....Neurons find their place in the developing nervous system with the help of a sticky molecule
...olecule into the lateral ventricle, a fluid-filled space next to the neocortex. Application of an electrical current forced the RNA into neural progenitor cells, and it was subsequently inherited by their neuronal progeny that form layer 2/3 and blocked their ability to make MDGA1 protein. When Takeuchi...Minimal genome should be twice the size, study shows
...survival; each gene deletion reduces the available space for further reduction of the genome. "Including these alternative pathways into the minimal genome almost doubles its size." The researchers have developed a way of predicting bacterial genome content using two bacteria that have evolved from E.col......tute leaves more room in the active site -- enough space for the halide, in this case a chloride ion, to casually slip inside and bind to the iron, without the grand theatrics chemists had anticipated. After the iron and the chloride bind, the protein closes down around the active site, effectively pulling......ide captured animals with a secure and comfortable space until they are released. A key reason for conducting this research is the need to understand the wolverine's habitat requirements in the Northwest and maintain the habitat without conflicting with other land uses. With help from satellites 600 mile...