Dried-out human cells can come back to life
..., where it often dries out. When the rock gets wet again the cells come back to life, swelling up to form gel-like masses whose sudden appearances led to the popular names "star jelly" and "witches butter". N. commune survives by surrounding itself with a slimy substance called glycan, Potts says. "It...For whales and seals the ocean is not blue
...en ocean during further evolution might now profit again from blue cones. But the genetic defect probably is too profound to be undone. Max Planck researcher Leo Peichl summarizes: "Perhaps the colour-blindness of whales and seals is the price these mammals had to pay for access to the wealth of food in th...In gene therapy first, scientists restore vision to dogs born blind
... to haul first-aid supplies. And now Briards once again have been called to service: For the first time ever, animals that were born blind gained the ability to see after undergoing gene therapy, according to research from the University of Florida, Cornell University and the University of Pennsylvania. T...Proteins in African HIV strains interact differently with drugs
...gh the protein to the binding site, where they may again distort the geometry of that site or alter the energy required to elicit the conformational change associated with inhibitor binding. "An additional cause for concern is the fact that we're starting to get some initial reports of drug resistance in H...Krauss book explores universe from oxygen atom's perspective
...ghout the Milky Way galaxy for eons before it once again finds itself swept up in an evolving star, merging with other partners, all of which have had their own adventures, to form the nucleus of an oxygen atom. After this star also explodes in a supernova, this atom ultimately makes its way to earth. "On...Study offers insights into evolutionary origins of life
...s. In this study, the Bartel lab took the approach again of making 1000 trillion random RNAs go through test-tube evolution to find those that could catalyze RNA formation. After successive rounds of testing, the Bartel lab isolated a ribozyme that didn't depend on a particular template sequence but could ...Scientists switch memory recall on and off in fruit flies
...ll memories could be switched on, off, and back on again by simply shifting the animals to different temperatures. "In most other studies, scientists have typically had to cause permanent structural damage to study brain function. In this study, the flies can develop and learn normally and then brain activ...International scientists probe unsolved puzzles of the Earth and beyond at "Earth System Processes"
...atmospheric CO2 (from volcanic eruptions) built up again because during glaciations, weathering processes are inhibited. James C. Zachos, of the Earth Sciences Department at UCLA, notes that the current warming of global climate may not be unprecedented in terms of rate and magnitude. Some 55 mya, Earth's...Undergrad's digital model of amoeba helps scientists study human cells
...in poor, rural areas. The message was brought home again last summer when she volunteered at a Connecticut health clinic for migrant workers who could not afford regular visits to a physician. "It was an eye-opening experience," she said....Beyond global warming: Where on Earth are we going?!
...before. There is no reason why they will not occur again in the future. While such changes occurred naturally in the past, there are signs that the current pace of change exacerbated by human intervention may be pushing the Earth into an era in which abrupt changes could occur. High population densities a......wn. However, once IPTG is depleted, tyrosinase is again turned off and the albino phenotype returns. Interestingly, these effects occur in both adult mice and in embryos that are exposed to IPTG via the mothers drinking water. The IPTG inducible system developed by Dr. Scrable and colleagues represent...UC Santa Cruz Public Forum on the Human Genome
...ticipants in the historic 1985 meeting will gather again at UC Santa Cruz along with other eminent scientists to discuss future directions for research on the human genome, now that the sequence is in hand. A public forum will be held in conjunction with this scientific workshop, featuring a presentation...Plant/pathogen evolutionary dynamic defies simple arms race model
...wed by pathogen mutations which create Avr factors again able to evade detection. "When we went looking for the molecular evidence for an arms race, we found that the evolutionary dynamics are actually much more complex," said Joy Bergleson, Ph.D., associate professor of ecology and evolution at the U...Scientists report the first live births in large mammals after using frozen ovarian tissue
...moved before their treatment and then grafted back again afterwards when they wished to have babies. Abstract no: O-014......ement and creation of additional copies of the DNA again and again prior to detection. RT-PCR methods are inherently less accurate than direct RNA detection and test ...A pill for reversible suppression of periods - a new option
... once the treatment is stopped normal cycles begin again in a very short time. The fact that we have an animal model with a cycle identical to that of a woman has been extremely valuable as it has enabled us quite quickly to develop these potential treatments to the point where they should be available to ...Scientists examine the seas our ancestors fished to better understand today's changing oceans
...d from overgrazing by sea urchins and didnt appear again until legal protection partially restored sea otters. Estes found that recent depletions of the kelp forest have occurred in areas of Alaska where killer whales are preying on sea otters. The whales recently shifted their diet to sea otters from seal...New study puts dinosaur noses in their place
...of dinosaurs' jaws and limbs, work that could once again alter scientists' and society's perceptions of how dinosaurs looked. While changing the appearance of dinosaurs may not be among Witmer's research goals, it has been an undeniable result of the work he's done. Earlier studies by Witmer presented at...Webcast will ensure broad public access to the UC Santa Cruz Public Forum on Human Genome Research
...sequence in 2000, eminent scientists are gathering again at UCSC to discuss future directions for research on the human genome. A special art exhibit, Genomic Art: Portrait of the 21st Century, is also being held in conjunction with the Human Genome Symposium. The exhibit is on display at UCSC's Baskin Vis...Electronic tags reveal transatlantic migrations and breeding grounds of Atlantic bluefin tuna
...ted from the Western Atlantic to the east and back again in the same year. Most of the fish examined showed...ing between the Carolinas and New England and back again to the original release location. The fidelity to these two locations is associated with high primar...