Results 31 to 40 of about 3,461,095 (294)
Time Scales and Characteristics of Stock Markets in Different Investment Horizons
Frontiers in Physics, 2020 Investors adopt varied investment strategies depending on the time scales (τ) of short-term and long-term investment time horizons (ITH). The nature of the market is very different in various investment τ.
Ajit Mahata, Md. Nurujjaman
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TAFFNet: Time‐Aware Adaptive Feature Fusion Network for Very Short‐Term Precipitation Forecasts
Geophysical Research Letters, 2023 Deep learning models based on radar echo extrapolation have been widely used in precipitation nowcasting. However, they face the challenge of insufficient input information when extending the forecast lead time, requiring the incorporation of physics ...
Jingnan Wang +4 more
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Long-term Recall of Time to Pregnancy [PDF]
Epidemiology, 2016 Despite the widespread use of retrospectively reported time to pregnancy to evaluate fertility either as an outcome or as a risk factor for chronic disease, only two small studies have directly compared prospective data with later recall.The North Carolina Early Pregnancy Study (1982-1986) collected prospective time-to-pregnancy data from the beginning
D. Robert McConnaughey +4 more
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Arrival Time from Hamiltonian with Non-Hermitian Boundary Term
UniverseIn this study, we developed a new method for finding the quantum probability density of arrival at the detector. The evolution of the quantum state restricted to the region outside of the detector is described by a restricted Hamiltonian that contains a ...
Tajron Jurić, Hrvoje Nikolić
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TIME BOUNDARY TERMS AND DIRAC CONSTRAINTS [PDF]
International Journal of Modern Physics A, 2012 Time boundary terms usually added to action principles are systematically handled in the framework of Dirac's canonical analysis. The procedure begins with the introduction of the boundary term into the integral Hamiltonian action and then the resulting action is interpreted as a Lagrangian one to which Dirac's method is applied.
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Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2018 See Article by Khot et ...
Andrew E. Levy, Larry A. Allen
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Short term vs. long term: Optimization of microswimmer navigation on different time horizons
Physical Review ResearchWe use reinforcement learning to find strategies that allow microswimmers in turbulence to avoid regions of large strain. This question is motivated by the hypothesis that swimming microorganisms tend to avoid such regions to minimize the risk of ...
N. Mousavi +4 more
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Short Term Prediction of PM10 Concentrations Using Seasonal Time Series Analysis
MATEC Web of Conferences, 2016 Air pollution modelling is one of an important tool that usually used to make short term and long term prediction. Since air pollution gives a big impact especially to human health, prediction of air pollutants concentration is needed to help the local ...
Hamid Hazrul Abdul +4 more
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The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada
Population Ecology, EarlyView.We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
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Network topology drives population temporal variability in experimental habitat networks
Population Ecology, EarlyView.Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu +3 more
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