NADC Examines TB In Cattle and Swine
... following high doses of the inoculationsand in 30 days following low dosages....Hibernation: The Opposite of Sleep?
...Although torpor may stave offthe need to sleep for days or even weeks, eventually the animal will grow so tired and sleepy that it must rewarm itself for a snooze." To aground squirrel, hibernation probably feels like long stretches of icy stupor punctuated with short, costly-naps--proof, Barnes says, tha...Ocean Sediments Contain Record of Past Vegetation Fires in Africa
...ing winds from the source area to the ocean within days to weeks of its initial formation. It eventually sinks and becomes part of the sediments at the bottom of the sea." Verardo studied such sediments by analyzing a core taken from the bottom of the eastern tropical Atlantic Ocean. "It was ful...'Juliet' Evades Primate Center Expedition
...ough we saw groups of animals on five of our eight days in theforest, the instant they saw us, they would ...we were there,Charlie will spend only two or three days at a time in the forest,"Glander said. The aim of the expeditions is to capture a mate for Romeo, a...Siblicide In Nature: Study Of Galapagos Seabird Finds Death Can Ensure Species Survival
...ies lay two eggs. If both hatch, usually about six days apart, siblicide occurs about a day after the second egg hatches in the nest. The older chick forces the younger one out , leaving its tiny sibling prey to certain death from heat or patrolling mockingbirds. The question for Anderson, wh...Pinpoint Gene Control Holds Promise For Nervous System Studies
...lopment but less understood in the adult. Tento 14 days after the injection of one microliter of solutioncontaining about 200,000 replication-defective herpes ampliconviral vector particles into their brains, mice are more activethan their normal counterparts, running around their cages moreand rearing up...Bigger Biology Tackled Through Keyboards
Solving crucial biological problems these days can involve trying tofigure out huge arrays of individual activities on vastly different scalesand timelines, from the rapid genetic mutations of certain viruses to thelong-term impact of species extinctions on global ecological processes. Fortunate...A Phoenix From A Ring Of Fire Is A Pattern For The Recovery Of Mount St. Helens
... hypothesis is that the ash thrown up in the first days of an eruption is sharp and highly abrasive pumice -- basically powdered glass. But in the later stages, the ash has far more mineral content and is less "pointy and abrasive." The first ash from Krakatau, he says, was almost certainly much more ...... about two to three weeks. Those that make itto 60 days have lived the equivalent of 85 human years. If they receivea normal diet of sugar plus protein, females generally outlive males byabout 1.5 days. But in this new study, the researchers report that, whenfed a protein-deprived diet, males lived shorte...Herpes-Based Gene Therapy Is Key To Promising Liver Tumor Vaccine
... Dr. Federoffsays, and remain high for a couple of days before falling off andeventually returning to normal. The short duration and targetedscope of the high levels are key: Such high levels of cytokinesin the entire body would be toxic to most people and animals. It takes the herpes simplex viral a...Herpes-Based Gene Therapy Is Key To Promising Liver Tumor Vaccine
...Dr. Federoff says, and remain high for a couple of days before falling off and eventually returning to normal. The short duration and targeted scope of the high levels are key: Such high levels of cytokines in the entire body would be toxic to most people and animals. It takes the herpes simplex viral amp...Emory Researchers Advance Gene Therapy Studies For Metastatic Melanoma Treatment
...ndance of the cytokine locally. It took just five days to completely eliminate tumor cells in more than half of the mice. The other half still developed tumors, but they shrank by at least 90 percent, compared with tumors not treated with the GM-CSF gene. "Our next step is to mimic the human conditio...Duke Study Shows Early Marrow Transplant Key To 'Bubble Boy' Disease Cure
...babies received marrow transplantsfrom eight to 24 days after birth. Twelve of 13 -- 92 percent -- survive...life-saving transplant can bedone in the first few days of a baby's life. The patient can receive treatmentas an outpatient or with "observation admission" ......y other day until the eggs hatch. For the first 30 days of the chicks' life, each parent will be gone for no more than 36 hours at a time, returning with digested fish which is regurgitated for the offspring. But then, as the chicks grow and become more demanding, the parents are gone for much longer peri...Bacterium gobbles up chlorinated pollutants
...age-treatment plant, a microbe-rich relic from the days when dry-cleaning solvents and industrial degreasing agents were flushed down the drain. An anaerobic bacterium, Strain 195, "uses tetrachloroethene much like we use oxygen," Zinder said, describing the reduction process that leaves little more th...Natural Shelters on Leaves House Plant Bodyguards
...use they produce a new generation every sevento 10 days and are resistant to many chemical pesticides," Agrawalsaid. Most growers apply sulfur, oils and mostly chemical miticides in an attemptto control spider mites. With the use of two pesticide sprays, 5 percentof the cotton yield is usually lost to sp...Stopping "Cellular Suicide" Could Boost Production In Biotech Labs
...ysiological "guns to their heads" after just a few days on thejob. Workingclosely with molecular biologists, Johns Hopkins Universityengineer MichaelJ. Betenbaugh, is trying to disable these guns and allow thedrug-makingcells to lead longer, more productive lives. "Ideally, we'd like to extend the lifeti...Resistance To Leptin Contributes To Obesity
...to originallevels by the eighth day. After the 30 days of ICV, the researchersreplaced the cerebrospinal fluid and the mice quickly recovered theirweight by eating more food. To compare leptin's affects via injection and ICV infusion amongoverweight mice, the researchers selected strains of mice ...Experts: Public Will Accept Irradiation In Wake Of Meat Recall
.... Although a decision is effective immediately, 30 days are allowed for objections to be raised. "The decision must be legally and scientifically sound," Pauli says. "We must make sure nothing is overlooked." In the meantime, Linton recommends thoroughly cooking meat, keeping hands and cooking ute......g the smoke of two unfiltered cigarettes aday, six days a week for six months. Such heavy smoking invariab... normal mice into smokingchambers twice a day, six days a week. The mice didn't actually have cigarettesin their mouths, but they got enough passive smoke t...