Whale of a Puget Sound problem lures UW researchers
...ut to sea in winter and monitoring them around the clock with infrared cameras and hydrophones mounted aboard a solar-powered catamaran. Two of the Puget Sound pods, K and L, winter offshore and their behavior and location are a mystery. The third pod, J, remains in Puget Sound year round. "Perhaps the......e. The student, James Kent, had worked around the clock to create a computer program that could assemble the draft in time for the Human Genome Project to declare completion on June 26, 2000. Now, Kent and his colleague David Haussler describe the creation of that computer program, revealing the surpri...Sleepless aged rats show biological clock problems
... this problem may be traced to a faulty biological clock at least in aged rats. Erik Herzog, Ph.D., assis..., Herzog found that the electrical activity of the clock cells in aged rats was not regular compared with that of young and middle-aged rats. "In the case...New study shows normal-looking clones may be abnormal
...ES cell. Ideally, the egg resets the developmental clock of the nucleus back to a state compatible with early embryonic growth and gives rise to a new organism that is genetically identical to the donor cell. Researchers had thought that using the nucleus from ES cell might require less reprogramming than ...Cardiovascular system holds a key to circadian clock
...ave discovered another key to the body's circadian clock that may begin to explain these observations and l...finement of such chronopharmacology. Resetting the clock might have obvious application in the treatment of jet lag, but could also combine with existing kno...Protective protein caps discovered at ends of human chromosomes
...ll divides, a process that may act as a biological clock by signaling the cell to stop dividing after a certain point. "Scientists have long known about the DNA component of telomeres, and have described the proteins that bind close to the telomeres end," said HHMI President Thomas Cech, also a distinguis...Scientists track down the root of cloning problems
...f an adult cell. The egg resets the developmental clock of the adult cell back to its embryonic state and gives rise to a new organism that is genetically identical to the donor adult. In practice, however, the theoretically simple procedure has proved troublesome. Cloned animals and the placenta t...More light makes redfish grown faster
...r's studies on redfish suggest that the biological clock mechanism in the brain may be the primary driver o...are the day-night cycle of light, which, through a clock in the brain, sets up periodic patterns of the production of the thyroid hormone, and a nutritive co...Card tricks and mathematics: Applying the magician's trade to numerical dilemmas
...g Newton`s Laws, and somehow, instead of having to clock how they bounce around, we`re able to say that if you know one or two things about them, we can answer all kinds of other questions about them.`` During the AAAS symposium, Diaconis will describe how he can apply his card trick to more than atoms. ...Heat kills inoperable liver tumors without initiating onslaught of harmful hormones
...e," Schell said. "We are able to help set back the clock using radiofrequency ablation." Of the estimated 150,000 patients who will be treated for colorectal cancer this year, about half will suffer a recurrence within five years. Less than a third of those people will respond to chemotherapy, and of t...Changes in Australian ecosystems tied to arrival of exotic animals
...over time, which has proven to be an accurate time clock for dating events going back thousands of years. "Because these eggshells can be dated by both radiocarbon methods and amino acids, they offer a unique opportunity to look back at ecosystem changes over the last 70,000 years," said Miller, a fello...... periods of wake and sleep. In addition, this main clock is thought to regulate local clocks in peripheral ...eals during the night, indicating that the central clock stimulated by light can regulate feeding behavior. Then the mice were kept at the same lighting sche......the worm," it's because birds also have a built-in clock that helps them to rise before the sun. High sc...h studies the molecular workings of the biological clock in the fruit fly Drosophila. Takahashi will discuss how biological rhythms are tied to the physic...Cloning can turn back the developmental clock
...has shown that the egg can reset the developmental clock of a female adult cell, first reversing and then faithfully reproducing an early genetic event called X-inactivation. X-inactivation is a process by which one of two X chromosomes in female embryos is randomly silenced during development. The find...TSRI scientists clone gene that regulates circadian rhythms in plants
...ave provided evidence of the existence of internal clock mechanisms by placing organisms in isolation chamb...ts in the Kay lab worked with a mutant plant whose clock ran too fast, cycling approximately once every 21 hours. To identify the gene responsible for thi...UK study finds men also have a biological clock
...some degree men as well as women have a biological clock that starts ticking as they get into their thirties and it also indicates that paternal age is another factor to be taken into account when doctors are looking at the prognosis for infertile couples," said Dr Chris Ford of the University Division of ...Mom may set your body clock, suggests Science research
...ientists have generally assumed that the circadian clock doesn't start working until around the time of bir...r have found that a key component of the circadian clock starts "ticking" in zebrafish eggs even before they are fertilized. The gene's activity keeps the sa...What makes cells tick detailed by Dartmouth researchers
...tdoctoral fellow. Just as the machinery behind clock faces of countless shapes and designs is built on ...clocks, they found, the way turning the hands of a clock does, but are not required to run them. The recent announcement that a map of the human genome is...Biological clock gene in bees found to have another function
...IGN, Ill. -- A gene associated with the biological clock in many organisms has revealed yet another functio... a developmental context. "This paper implicates a clock gene in a function that is different than the basic mechanism of the biological clock," said entomol......w cloning technology to literally rewind the aging clock in cells. Virtually all types of body cells, excep... is used up. We thus eventually run out the aging clock until the cells in our bodies stop dividing. This cellular aging phenomenon is known as the "Hayflic...