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تعداد نتایج: 16836806 فیلتر نتایج به سال:
This paper considers four patterns of intertemporal choice. First, the time effect, an inverse relation between time preference (TP) and the time implied in the choice. Secondly, the magnitude effect, an inverse relation between TP and the amount implied in the choice. Thirdly, delay/speed-up asymmetry, that is to say, a change in the preferences in function of the framing of the choices. Fourt...
Distributed erosion models are potential tools for identifying soil sediment sources and guiding efficient Soil and Water Conservation (SWC) planning. However, the uncertainty of model predictions has yet to be resolved. Splash erosion is one of the most important mechanisms in soil loss. In this study, monthly splash detachment rates were predicted using the Morgan, Morgan and Finney (MMF) emp...
A particle reaction model including mass and heat transfer has been developed to know the temperature variations produced inside the oxygen carrier particles during the cyclic reduction and oxidation reactions taking place in a Chemical-Looping Combustion (CLC) system. The reactions of the different oxygen carriers based on Cu, Co, Fe, Mn, and Ni during the reduction with fuel gas (CH4, CO, and...
BACKGROUND Maternal and infant clinical outcomes were compared for low risk mothers receiving a partnership caseload model of midwifery care, known as Primary Health Midwifery Care (PHMC), and standard hospital care (SHC). METHODS Using secondary analysis of data from the Obstet Data System routine collection (PHMC n=976, SHC n=976) from a large metropolitan hospital, maternal and infant clin...
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