Experimental radar provides 3-D forest view
...een the tree canopy and the forest floor and from knowing tree height, we can use specially-developed algorithms to estimate forest biomass with a reasonable degree of certainty. "What we needed to know was if the same was true of much denser tropical forests. So with ESA's support and the co-operation of ...Racial groupings match genetic profiles, Stanford study finds
...y of different forms at the same location. Without knowing how the participants had identified themselves, Risch and his team ran the results through a computer program that grouped individuals according to patterns of the 326 signposts. This analysis could have resulted in any number of different clusters, ...Hypertension risk in African-Americans linked to genetics, Stanford study finds
...-Americans and other ethnic groups. One is that by knowing the normal role of the gene, doctors can better understand the disease and devise new drugs or treatments to keep blood pressure under control. It could also lead to genetic tests to help identify people at higher risk of heart disease. The work take...Scientists find common roots for thousands of plant compounds
...the amount of materials available in the cell, and knowing where these compounds come from and which pathway produces them is the place to start." Dudareva and her colleagues report in the current issue (Tuesday, Jan. 18) of Proceedings of the National Academy of Science that the molecular precursors to a gr...Urban ecology study witnessing the birth of a 'designer ecosystem'
...sts signed on to do the multidisciplinary research knowing that they were embarking on something unusual the first ever long-term ecological study of "a human-dominated ecosystem," aka, a city. Seven years later, the first phase of the research has been completed and NSF has renewed the project with a secon...Femtosecond laser technique opens new opportunities for research on neural regeneration
...orms in the experiments in a "blinded" manner, not knowing which ones had received the surgery. "Without such functional assays, any anatomically observed regeneration could be explained in various ways, such as bleaching and recovery of the marker protein used to label the neurons," she said. The nanosurge...Chicken genome analysis will benefit human health and agriculture
...etic component." He compared biologists' knowing the genome sequence to a sociologist's wanting to study the population of New York City and using a telephone directory. "How useful is the phone book for that?" he asked. "It doesn't provide answers on its own, but it does give you a summa......ty to construct a complete song from its pieces by knowing how the pieces fit together is comparable to completing a jigsaw puzzle, says Rose. "You don't have to know what the puzzle picture looks like, just the rules for putting the pieces together," for example, that they fit like locks and keys, he says...Scientists uncover clues to the mystery of 'gene deserts'
...in our DNA are teeming with activity. The trick is knowing where to look for it. A new roadmap to the location of DNA segments that are significant in medical, biological and evolutionary research could emerge from studies published today (Dec. 9) by scientists at Lawrence Livermore National Laboratory (LLN...New method to measure ancient land elevation developed by Field Museum scientist
...s on opposite sides of mountain chains. Therefore, knowing exactly when in the geological past the mountains of today's world reached their current elevations is relevant to our understanding of plant and animal evolution since isolation is an important mechanism in the formation of species. In addition, hig...Psychological stress and disease: UCSF-led study suggests connection
...ength in cells, and scientists are years away from knowing enough about the correlation between chronic psychological stress and these biological markers to proceed in this direction. However, if the evidence that telomere length is a risk factor for disease becomes more established, it's possible, the scien...Forensic clock calls time on crime
...ene of a crime. But until now, there was no way of knowing when the suspect was there - an element of doubt often exploited by defence lawyers. An ingenious new technique that measures how quickly genetic material breaks down could change that. DNA profiling is now a ubiquitous forensic tool. This month, th...Gene expression profiling aids in ovarian cancer prognosis
...gnostic Profile [OCPP]," Cannistra notes. "Simply knowing the expression pattern of these genes from the original tumor sample [i.e., whether genes were 'turned on' or 'turned off'] provided us with important information about prognosis that could not be gleaned from standard clinical features, such as tumo...Extinction in ocean's mud presages key ecological changes
...h animals go extinct is important and essential to knowing what the long-term environmental effects will be. "The finding is important because it argues that the particular cause of extinction ultimately governs the ecosystem-level consequences of biodiversity loss," the researchers conclude. ...Reassuring findings from first study on sperm donor identification
...Sperm Bank of California (TSBC). Most had grown up knowing their history and the average age of learning about it was well under seven. By the age of 10, all had been told. The study is important because little research is available about the experiences of donor insemination families who have open-identity ...International marine survey of coral death
...ey write. They add: "Reducing such inputs requires knowing the source of new marine pathogens -- research should focus on identifying sources and reducing inputs while at the same time developing control measures." That is precisely the prescription marine scientists have written for the their global assessm...Structure of new DNA enzyme family member found
...0 protein structures over the past 20 years. "From knowing the genetic sequence alone, we wouldn't necessarily guess that two proteins play a similar role in an organism." Zhang took just two months of "trial and error" -- an unusually short time -- to get the AIRs kinase protein to crystallize. Then, using ...Food shortages threaten Antarctic wildlife
...tacular wildlife, most of which feed on krill. By knowing how the environment affects this unique food web, we can predict how it will respond to future change....Research confirms that vCJD prions can be removed from blood
...ease are performed post-mortem, there is no way of knowing how many people may be harboring vCJD and donating blood. These events have spurred increasing concern about the possibility of a second and bigger wave of mad cow disease in humans. Public health officials and risk assessment experts believe that t......s protein and picks up the tagged compound without knowing that a bomb artemisinin is hidden inside." Once inside the cancer cell, the iron is released and reacts with the artemisinin. That makes the compound both highly toxic and, because of cancer's rapacious need for iron, highly selective. Sur...