Results 31 to 40 of about 3,778,426 (259)

TAFFNet: Time‐Aware Adaptive Feature Fusion Network for Very Short‐Term Precipitation Forecasts

open access: yesGeophysical 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
doaj   +1 more source

Time Scales and Characteristics of Stock Markets in Different Investment Horizons

open access: yesFrontiers 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
doaj   +1 more source

TIME BOUNDARY TERMS AND DIRAC CONSTRAINTS [PDF]

open access: yesInternational 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.
openaire   +3 more sources

Arrival Time from Hamiltonian with Non-Hermitian Boundary Term

open access: yesUniverse
In 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
doaj   +1 more source

Communication and Language Profiles of Children Treated for Posterior Fossa Brain Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cognitive and language deficits are frequently reported sequelae of posterior fossa brain tumors (PFBT). Typically, delayed onset impedes prompt assessment and early intervention. This has devastating implications for quality of life.
Zara Sved   +4 more
wiley   +1 more source

Integrating Long and Short‐Term Time Dependencies in Simulation‐Based Seismic Hazard Assessments

open access: yesEarth and Space Science, 2022
Conventional probabilistic seismic hazard analysis (PSHA) only considers mainshock events and uses a time‐independent earthquake rupture forecast to describe the occurrence of mainshocks. This approach neglects the long‐term time‐dependency of mainshocks
Salvatore Iacoletti   +2 more
doaj   +1 more source

Long-term Recall of Time to Pregnancy [PDF]

open access: yesEpidemiology, 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
Anne Marie Z, Jukic   +4 more
openaire   +2 more sources

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski   +59 more
wiley   +1 more source

Stressful Events Reported by Childhood Cancer Survivors and Community Controls From the St. Jude Lifetime (SJLIFE) Cohort: A Mixed Method Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Characterizing stressful events reported by childhood cancer survivors experienced throughout the lifespan may help improve trauma‐informed care relevant to the survivor experience. Methods Participants included 2552 survivors (54% female; 34 years of age) and 469 community controls (62% female; 33 years of age) from the St.
Megan E. Ware   +13 more
wiley   +1 more source

Short term vs. long term: Optimization of microswimmer navigation on different time horizons

open access: yesPhysical Review Research
We 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
doaj   +1 more source

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