Coral stress 'like never in history'
... fossils is like a three dimensional movie of what happened in the reefs past," says Pandolfi. Over the 6000 years recorded in the fossil strata the team found 4 devastating events which resulted in the death of most of the reef indicating such events had occurred about once every 1500 years. "The caus...Molecular 'on/off switch' controls immune defenses against viruses
...sponse to a virus is dangerously overactive, which happened in many flu cases during the 1918 pandemic. "Fine-tuning immune response to infection is where antiviral or immune regulatory drugs are headed," said Dr. Gale....Imaging pinpoints brain regions that 'see the future'
... children -- they don't remember particularly what happened last month and they can't really tell you much of anything about what they envision happening next week. This is also the case with suicidally depressed people. So, there's this theory that it all goes hand-in-hand, but nobody has looked closely enou...Fires fuel mercury emissions, University of Michigan study finds
...smoke blanketed the camp. Around that time, Biswas happened to read a new scientific paper suggesting the poss...here they have been suppressed for a long time, as happened in the Yellowstone fire of 1988, the fires end up burning a huge area that has been accumulating mer...Queen's discovery provides new hope for people with advanced breast cancer
...g discovery by Queen's University researchers that happened when their work took an unexpected turn may help women with advanced breast cancer respond better to conventional drug treatments. The Queen's team's findings, to be published on-line today in the international journal Cancer Research, show that a n...Bats in flight reveal unexpected aerodynamics
...iding wing to a long, skinny flapping wing has not happened seven times. It might have happened once. And now it doesn't look like bats have any relationship to these gliding things." Bat wings a...Bumblebee house warming -- it takes a village
...ved the most active incubating workers. When this happened a colony's remaining incubators responded within 24 hours by increasing their rate of incubation, rather than having workers involved in other jobs switch tasks, said O'Donnell. Bumblebee workers vary considerably in size, and body size affects whic...Study provides first genetic evidence of long-lived African presence within Britain
...ype, known as hgA1, in one individual, Mr. X. This happened whilst PhD student Ms. Turi King was sampling a la...n the line. Our study suggests that this must have happened some time ago." Although most of Britain's one million people who define themselves as "Black or B...Researchers probe health and safety impacts of nanotechnology
...want to look back in 50 years if something bad has happened and say, 'why didn't we ask these questions?'" Palazuelos said. Palazuelos is a member of a small interdisciplinary group of UF faculty members and students, the UF Nanotoxicology Group, whose work is rapidly becoming more timely as manufacturers i...Salmonella survives better in stomach due to altered DNA
...f of 500 genetic characteristics was studied. This happened under different conditions such as in a hot, acid or oxygen-free environment. Almost all of the survival characteristics were found to be active under all conditions, whereas the pathogenic characteristics were only active under a few of the conditio...Old dinosaur research leads to new honor
...my work has led to a greater understanding of what happened then." Reisz earned three degrees in zoology at McGill University during the 1960s and 1970s, culminating in a doctorate in 1975. After spending a year at UCLA, he began research at the University of Toronto under an NSERC grant. He has remained at...Studies of population genetics, evolution are an exercise in bad taste
...you would expect one form to dominate. That hasn't happened here because for some reason, there is not a strong advantage of one over the other. It's an unusual situation." One hypothesis is that PTC nontasters can taste something that tasters can't. "When we look at the nontaster form of the PTC receptor...Study verifies more hazardous waste facilities located in minority areas
...he United States. The new report measures what has happened in the last 20 years in terms of environmental injustice. The report uses the new methods in Mohai's AAAS presentation to do a better job of matching where people and hazardous sites are located. The report also takes stock of the environmental justi...Remote sheep population resists genetic drift
...t the University of Alberta. "We think this has happened because natural selection is more important to the evolutionary process than is commonly believed," he added. Genetic diversity refers to the total amount of possible gene combinations that a mating male and female couple can produce. Scientists be...Press conferences at the year's largest physics meeting
...of many speakers at session B1) will describe what happened at the Woodstock session and the current status of high temperature superconducting (HTSC) applications. Georg Bednorz (IBM,), who won the physics Nobel Prize along with Alex Muller for their HTSC breakthrough, will describe the events of 1986/87. ...Researchers identify molecular basis of inflammatory bowel disease
...cells are much more likely to die and this is what happened in the intestines of our mice; individual epithelial cells died disrupting the gut lining." Through these gaps bacteria could penetrate the intestinal wall. Right behind the gut epithelium lie cells of the intestinal immune system, the biggest immune...Other highlights from the March 21 JNCI
...actually occurs, so they can only estimate that it happened sometime between the test that showed progression and the previous one. Methodological problems can arise when researchers define the date of progression as the date on which it was first detected, even though progression most likely occurred prior...Genetic studies endow mice with new color vision
... in these mice is the same evolutionary event that happened in one of the distant ancestors of all primates and that led ultimately to the trichromatic color vision that we now enjoy, said Nathans. Trichromacy is dependent on three types of photoreceptor cells in the retina that preferentially absorb lights ...Widely used iron nanoparticles exhibit toxic effects on neuronal cells
...hing of the cell membrane called endocytosis. What happened next was a surprise. Jin's group had initially investigated the nanoparticles for use in in vitro studies as a possible way to manipulate nerve cells remotely with magnetic force. Eventually they had hoped to conduct in vivo experiments, using nano...Ancient coral reef tells the history of Kenya's soil erosion
... people live in East Africa now, if a mega-drought happened today, it would be devastating," Dunbar said. ...