Results 51 to 60 of about 4,571,499 (346)
Water Resources Research, 2020 Mitigating the adverse impacts caused by increasing flood risks in urban coastal communities requires effective flood prediction for prompt action. Typically, physics‐based 1‐D pipe/2‐D overland flow models are used to simulate urban pluvial flooding ...
F. Zahura +5 more
semanticscholar +1 more source
Coadjoint orbit action of Virasoro group and two-dimensional quantum gravity dual to SYK/tensor models [PDF]
Journal of High Energy Physics, 2017 The Nambu-Goldstone (NG) bosons of the SYK model are described by a coset space Diff/SL(2, ℝ), where Diff, or Virasoro group, is the group of diffeomorphisms of the time coordinate valued on the real line or a circle. It is known that the coadjoint orbit
G. Mandal, P. Nayak, S. Wadia
semanticscholar +1 more source
Atmospheric Chemistry and Physics, 2019 . A 5-year Clean Air Action Plan was implemented in 2013 to reduce air pollutant emissions and improve ambient air quality in Beijing. Assessment of this action plan is an essential part of the decision-making process to review its efficacy and to ...
T. Vu +6 more
semanticscholar +1 more source
Physical Determination of the Action
arXiv: History and Philosophy of Physics, 2013 The objective is a foundation of physics from the operationalization of its basic observables. We begin with classical and relativistic kinematics. Seizing on a programmatic proposal by Heinrich Hertz we arrive via quantification of energy-momentum at the equations of motion and the action functional.
openaire +3 more sources
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
wiley +1 more source
Principles of Least Action in Urban Traffic Flow
Findings, 2020 Drawing on the strong connection between traffic modelling and physics we apply the principle of least action to traffic flow in an urban setting.
Willem Klumpenhouwer, Lina Kattan
doaj +1 more source
Play-Based Physics Learning in Kindergarten
Education Sciences, 2022 This article highlights the importance of play as a learning approach in early physics education. It demonstrates the concept of an innovative didactic method that combines children’s free play with physics learning in kindergarten.
Nathalie Glauser-Abou Ismail +2 more
doaj +1 more source
Group action in topos quantum physics [PDF]
Journal of Mathematical Physics, 2013 Topos theory has been suggested first by Isham and Butterfield, and then by Isham and Döring, as an alternative mathematical structure within which to formulate physical theories. In particular, it has been used to reformulate standard quantum mechanics in such a way that a novel type of logic is used to represent propositions. In this paper, we extend
openaire +3 more sources
An action for extended string Newton-Cartan gravity [PDF]
Journal of High Energy Physics, 2018 A bstractWe construct an action for four-dimensional extended string Newton-Cartan gravity which is an extension of the string Newton-Cartan gravity that underlies nonrelativistic string theory.
E. Bergshoeff +3 more
semanticscholar +1 more source
Population Ecology, EarlyView.Population size and dynamics fundamentally shape speciation by influencing genetic drift, founder events, and adaptive potential. Small populations may speciate rapidly due to stronger drift, whereas large populations harbor more genetic diversity, which can alter divergence trajectories. We highlight theoretical models that incorporate population size
Ryo Yamaguchi +3 more
wiley +1 more source