Cardiac arrest may hinder ability to learn certain tasks
Cardiac arrest can take a particularly harsh toll on the hippocampus, the area of the brain that plays a role in memory and navigation. A lack of oxygen during a severe attack one where the victim stops breathing can either kill or seriously damage neurons, the primary cells of the nervous sy...New signs of life found at the Poles
...ions where most of the rocks are opaque. Also, the harsh UV- radiation and violent winds make for a hostile environment. We found that in fact the opaque rocks protect the micro-organisms and, the movement of rocks during the annual freeze-thaw allows cracks to form and light to penetrate beneath the sur...Protein is key for digestive function of the pancreas
...oteins, and fats present in the foods we eat. The harsh digestive enzymes secreted by pancreatic acinar cells are packaged into units called zymogen granules. Upon stimulation with hormones like cholecystokinin (CCK), zymogen granules are emptied via a process called exocytosis into ducts leading to the ...Two Virginia Tech energy-related inventions win R&D 100 awards
... about his work to develop fiber-optic sensors for harsh environments. "They were excited and invited a proposal," he says. The result was a $2 million National Petroleum Technology Program grant, awarded in 1998 to develop specific technology -- the first nationally funded project to develop fiber optic...Carnegie Mellon researchers to demonstrate autonomous robotthat will seek life in Atacama Desert
...oncentrates on pushing the limits of technology in harsh environments. The first phase of the project began in 2003 when a solar-powered robot named Hyperion, also developed at Carnegie Mellon, was taken to the Atacama as a research test bed. Scientists conducted experiments with Hyperion to determine the...Macrophages, not stem cells, correct liver disease by fusion
..., which has severe side effects. Here we show this harsh treatment is not necessary for macrophages to turn into useful liver cells." Willenbring said transplantation of macrophages or their immediate, short-lived progenitors is much more targeted toward treatment of damaged liver tissue than using whole s...Digital evolution reveals the many ways to get to diversity
...n be seen in the real world. Environments that are harsh and short on resources like the arctic tundra or a desert have comparatively little species diversity, not surprisingly perhaps. Unexpectedly, however, some natural environments that have a lot of resources support fewer species than environments t...Finding the hole in the defenses of cavity-creating microbes
...bility to change their cell membranes to cope with harsh conditions. E. coli bacteria happily ensconced in red meat perform a similar trick as they travel through the human digestive system. Another harmful bacterium, Listeria, changes its membrane properties to allow it to live even in the cool temperatur...Molecule that 'blocks' key bacterial enzyme may lead to new antibiotics
...rdy structure permits it to withstand all sorts of harsh environmental conditions," said Severinov. Because of its robustness, he added, "the [U.S.] Department of Defense is interested in the molecule as a potential bacterial decontaminating agent." MccJ25 inhibits bacterial RNAP and kills bacteria...NASA researchers customize 'lab-on-a-chip' technology
...izing these instruments and designing them for the harsh space environment." The Marshall Center team is collaborating with scientists at other NASA centers and at universities to design chips for many applications, such as studying how fluidic systems work in spacecraft and identifying microbes in self-co...The Hunter's Breath tells a story of adventure and discovery in Antarctica
...arctica, even for an animal so well adapted to its harsh environment. The researchers used an array of high-tech equipment to gain access to the hidden life of the seals beneath the ice. A compact instrument package, including a small video camera mounted harmlessly on the backs of the seals, r...'Knock out' rose receives Texas superstar and earthkind designation
...so great that you "will almost never have to apply harsh pesticides in the care of these roses," George said. "EarthKind and Texas Superstar plants are the finest, most thoroughly tested and most environmentally responsible plants for use in Texas landscapes and gardens."...Bioreactor boosts chemical fermentation by 50 percent: study
...e cells could grow and evolve -- or mutate -- in a harsh environment. "Most labs focus on mixing the right chemical or biological cocktail to grow cells," he said. "We are the only group that I know of that is working to optimize the cells' physical environment." The bioreactor can grow...Bacteria live in the esophagus!
...vents, hot springs, volcanoes, and other extremely harsh environments. "By comparison, the esophagus seemed much more hospitable," says Dr. Blaser. In human biology, too, there have been surprises concerning bacteria. For many years, doctors didn't believe that bacteria could survive in the acid env...ORNL earns four Federal Laboratory Consortium awards
...le, low-power communications devices to operate in harsh physical and atmospheric environments. ORNL researchers recognized for this work are Stephen Smith, Gregory Hanson, Michael Moore, John Jones Jr., Roberto Lenardduzzi, Michael Emery, Gary Turner, Nance Ericson, Timothy McKnight, James Hylton, James M...Bighorn sheep threatened by climate change
...tural Resources and lead author of the paper. "The harsh environment inhabited by desert bighorn sheep already has them walking on a knife's edge. It doesn't take too much to push them off. The bottom line is that more than one-third of the populations that were once known are now gone," said Epps. From 19...Want a side of algae with that? Hawaiian farmers sell seaweed by the seashore
...s. Some large-scale seaweed-processing plants use harsh chemicals to extract the agar, but Nelson sees an opportunity to extract Molokai agar in gentler ways so it can be marketed as an organic product. "We can say this was grown in the pristine waters of Hawaii."...Endurance of plants under quartz rocks possible model for life on early Earth, Mars
...land plants established their first toehold in the harsh conditions of the early Earth: by staying under co...t 150 degrees Fahrenheit at midday in August under harsh desert conditions. The researchers then brought some pebble samples back to their laboratory at Du...Scientists discover how anthrax creates its deadly spores
...athogen can survive drought, bitter cold and other harsh conditions fordecades, yet still germinate almost instantly to infect and kill onceinside an animal or human host. In a collaboration funded by the U.S. Office of Naval Research and theNational Institutes of Health, scientists from three major rese...Novel approaches to current cellular therapies continue progress toward disease prevention
...ning of the patient prior to a transplant requires harsh radiation and chemotherapy that significantly weakens a recipient's immune system, effectively rendering the patient defenseless and very susceptible to opportunistic infection, GVHD, or immune rejection. Re-building immunity to pathogens after a bo...