54 research outputs found
Capture of alpha Particles by Isospin-Symmetric Nuclei
The reaction rates for alpha capture processes on self-conjugate nuclei in
the mass range A=20-40 have been investigated. The rates were calculated using
the statistical model code NON-SMOKER taking into account isospin suppression
rules. These theoretical predictions are compared with rates derived from the
available experimental data about the alpha capture reactions taking also into
account additional experimental information from different reaction channels
populating the alpha unbound states of the self-conjugate compound nuclei.Comment: 29 pages including 7 figures; figures are revised in the new version;
accepted for publication in Nuclear Physics
Construction, assembly and testing of the ATLAS hadronic end-cap calorimeter
The construction and assembly of the four wheels of the ATLAS hadronic end-cap calorimeter and their insertion into the two end-cap cryostats are described. The results of the qualification tests prior to installation of the two cryostats in the ATLAS experimental cavern are reviewed
Ecological forecasting—21st century science for 21st century management
Natural resource managers are coping with rapid changes in both environmental conditions and ecosystems. Enabled by recent advances in data collection and assimilation, short-term ecological forecasting may be a powerful tool to help resource managers anticipate impending near-term changes in ecosystem conditions or dynamics. Managers may use the information in forecasts to minimize the adverse effects of ecological stressors and optimize the effectiveness of management actions. To explore the potential for ecological forecasting to enhance natural resource management, the U.S. Geological Survey (USGS) convened a workshop titled "Building Capacity for Applied Short-Term Ecological Forecasting" on May 29—31, 2019, with participants from several Federal agencies, including the Bureau of Land Management, the U.S. Fish and Wildlife Service, the National Park Service, and the National Oceanic and Atmospheric Administration as well as all mission areas within the USGS.
Participants broadly agreed that short-term ecological forecasting—on the order of days to years into the future—has tremendous potential to improve the quality and timeliness of information available to guide resource management decisions. Participants considered how ecological forecasting could directly affect their agency missions and specified numerous critical tools for addressing natural resource management concerns in the 21st century that could be enhanced by ecological forecasting. Given this breadth of possible applications for forecast products, participants developed a repeatable framework for evaluating potential value of a forecast product for enhancing resource management. Applying that process to a large list of forecast ideas that were developed in a brainstorming session, participants identified a small set of promising forecast products that illustrate the value of ecological forecasting for informing resource management. Workshop outcomes also include insights about important likely obstacles and next steps. In particular, reliable production and delivery of operational ecological forecasts will require a sustained commitment by research agencies, in partnership with resource management agencies, to maintain and improve forecasting tools and capabilities.https://pubs.er.usgs.gov/publication/ofr2020107
An Industry Perspective of All-native and Transgenic Potatoes
Genetically modified (GM) potatoes were a market failure in North America in the 1990s. In spite of benefits to growers, processors, consumers, and the environment, concerns about GM potatoes are still prevalent. We surveyed people in the North American potato industry regarding their opinions of GM potato issues. Results suggest that: (1) growers may be more likely than consumers to accept GM potatoes and (2) all-native technology may be more acceptable than transgenic technology. Potato growers, females, Canadians, and former Monsanto GM potato customers were more likely to be optimistic about all-native GM potatoes. Proactive marketing of all-native potatoes with consumer attributes -- and perhaps with the approval of an environmental group -- could lead to market success in the future
Estimating the Minimum Risk Maturity Gap: Some Evidence from the Savings and Loan Industry
A Technique for the Selective Extraction of Water-Soluble Polypeptides from Identified Neurons of Aplysia californica
Efficiency, endogenous and exogenous credit risk in the banking systems of the Euro area
The implantation of the Euro in 11 of the EU states has driven the big banks to expand their presence in other European countries, which may have negative consequences on their credit risk in view of the disadvantages involved in entering new markets. The aim of this study is to analyse the efficiency and the credit risk of the banks of the most important countries of the Euro area, using a one-stage parametric stochastic procedure that allows one to identify whether the behaviour towards risk of the banks analysed was more cautious or more reckless during the period analysed. The results indicate that adjustments for risk are important in the case of profit efficiency but not in the case of cost efficiency.
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