Tag: "uncertainty" at biology news

Climate change plus human pressure caused large mammal extinctions in late Pleistocene

... with one another. There, as in South America, the uncertainty comes from lack of data. In these fairly recent large-mammal extinctions, Barnosky sees lessons for the future. "Humans tend to impact the bigger animals, with the smaller animals as collateral damage," he said. "Climate change is just the opposite -...

New Arizona State center brings science to policy on issues of water resources and urban growth

...rmation and tools related to decision making under uncertainty associated with short-term climate variability and...ven the best science will not significantly reduce uncertainty about global climate warming and the climate cycles that cause droughts, floods and other severe wea...

New framework for biodiversity conservation

... planning theory and practice that can account for uncertainty and dynamics in the real world."...

New paper in Science introduces revolutionary new paradigm for fishery management

...ble," says Pikitch. "Because of the complexity and uncertainty about marine ecosystems, this approach will inevitably require erring on the side of caution." Managers would need to pay closer attention to the entire food web, such as to prey species critical to the endangered Steller Sea Lion in Alaska, and to b...

Leading scientists design new framework for biodiversity conservation

...llaborations with economists to incorporate market uncertainty and bet-hedging strategies methods routinely used... planning theory and practice that can account for uncertainty and dynamics in the real world."...

Clinical judgement still counts strongly alongside genetic testing

... a source of satisfaction. It can remove doubt and uncertainty as to the condition itself. Some parents have real concerns over the possibility that they are in some way responsible for their children's problems. In particular they worry whether their lifestyle choices, such as smoking in pregnancy, are...

Newly grown kidneys can sustain life in rats

... in control and experimental rats. To help resolve uncertainty about which kidney functions are critical to sustaining life, scientists cut the connections between the bladder and the new kidneys in a subset of the experimental rats. Rats with no new kidneys lived for two to three days, and rats whose new kidney...

Some plants may compensate for herbivore damage by stimulating nutrient release in the soil

...he regeneration of forests. However, there is much uncertainty with regard to effects on soil nutrient cycling and in turn, potential consequences for the growth of plants. In a paper to be published in the June issue of Ecology Letters, researchers from Lancaster University and the Centre for Ecology and Hydro...

Testing soil for contamination

...g properties. One obstacle to their re-use is the uncertainty over how blighted the land is, and stakeholders such as local government agencies, industrial owners and developers often hesitate to check this, as current testing methods are time-consuming, inconclusive and expensive. The UK, Irish, Portuguese and...

Scientists identify six genes associated with survival in diffuse large B cell lymphoma

...ing policies andgovernment-sponsored research; (3) uncertainty of the availability ofintellectual property protection and the ability to protect trade secrets,and the risk of infringement claims; and (4) other factors that might bedescribed from time to time in Applera Corporation's filings with theSecurities an...

New analysis gives cancer patients personalized prognosis

...nts risk status, it is critical that the resulting uncertainty be properly represented and communicated to adequately inform -- and indeed caution -- the clinical interpretation of a patient's estimated risk, and that efforts be made to dissect and understand the underlying basis for that conflict," West said. T...

Scientists report on the current state of INEEL's nuclear waste contamination

...e papers discusses the need to evaluate conceptual uncertainty before evaluating parametric uncertainty when conducting regulatory-driven modeling. In the paper, the authors assess conceptual uncertainty ...

Stanford study questions identity of alleged Romanov bones

...ut which physical remains belong to whom, but this uncertainty doesn't really change our fundamental understanding of the Russian Revolution and the nature of Bolshevism,'' said Robert Crews, an assistant professor of history at Stanford. Donald Ostrowski, a Russian historian at Harvard University, said he had d...

Tagging faulty genes with fluorescent nanodots

...therapy. The standards are expected to help reduce uncertainty in the so-called FISH (fluorescence in situ hybridization) test that detects a particular gene. Excess copies of this gene result in over-production of a protein and cause tumor cells to grow rapidly. Potentially, quantum dots could be used to tag th...

Carbohydrates offer some help in muscle protein synthesis, but not enough for the desired effect

...ams of carbohydrates are added. This reflects the uncertainty of the independent effects of carbohydrates on muscle protein metabolism after resistance exercise. Additionally, it is unclear how carbohydrate intake causes changes of net protein balance between synthesis and breakdown and how it relates to chang...

Scientists, lawyers discuss decision-making amid uncertainty

...bout ocean resource use in the face of significant uncertainty for example, how many rockfish fishermen should be allowed to catch this year even though we don't know exactly how many rockfish there are," Eagle says. "We hope to show that it is possible to make good decisions in the face of uncertainty, and we ...

National ocean commissioners & scientists call for overhaul of ocean policies & management

...anagement recognizes that there is a great deal of uncertainty in predicting natural fluctuations in populations, communities and physical oceanographic conditions. Therefore the goal is not a precise state but to retain a diverse system that maintains its own resilience in the face of change. For example, Unive...

ESA to select new Earth Explorer missions

...ect. Estimates of global warming currently have an uncertainty of 4-5C. The main aim of the EarthCARE mission is to measure clouds and aerosols and the geophysical parameters associated with them in order to minimise climate predication uncertainty. SPECTRA (Surface Processes and Ecosystem Changes Through Res...

Pew report finds GM insects may offer benefits, but clear regulatory oversight is lacking

...e worldwide each year. However, there is uncertainty about the lasting effects these insects could have on ecosystems, public health and food safety once released. For instance, the success of some GM insects is contingent on the ability of fertile GM insects to replace wild insect populations and bec...

Vietnam last on vaccine list

...delays in vaccine production caused by the initial uncertainty could cost many lives. Wood says there should be a clearly defined "trigger" point at which health authorities will be allowed to press ahead with plans for producing a vaccine without fear of violating patent laws....

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