Results 41 to 50 of about 17,989,902 (389)
ISPRS International Journal of Geo-Information, 2022 The ambient population has been regarded as an important indicator for analyzing or predicting thefts. However, the literature has taken it as a homogenous group and seldom explored the varied impacts of different kinds of ambient populations on thefts ...
Guangwen Song +5 more
doaj +1 more source
Hall Fields and Current Systems of Magnetic Reconnection under Asymmetric Conditions
The Astrophysical Journal, 2023 The Hall effect is a key component of collisionless reconnection. A previous study showed that a quadrupolar Hall pattern under symmetric conditions degenerates into a bipolar pattern under highly asymmetric conditions.
Y. C. Zhang, S. Y. Tang
doaj +1 more source
Activity pulses induce spontaneous flow reversals in viscoelastic environments [PDF]
J. R. Soc. Interface 18 (2021) 20210100, 2021 Complex interactions between cellular systems and their surrounding extracellular matrices are emerging as important mechanical regulators of cell functions such as proliferation, motility, and cell death, and such cellular systems are often characterized by pulsating acto-myosin activities.
arxiv +1 more source
Capturing exposure in environmental health research: challenges and opportunities of different activity space models. [PDF]
Int J Health Geogr, 2018 BackgroundThe built environment health promotion has attracted notable attention across a wide spectrum of health-related research over the past decade. However, the results about the contextual effects on health and PA are highly heterogeneous.
Laatikainen TE, Hasanzadeh K, Kyttä M.
europepmc +2 more sources
Impacts of Individual Daily Greenspace Exposure on Health Based on Individual Activity Space and Structural Equation Modeling. [PDF]
Int J Environ Res Public Health, 2018 Previous studies on the effects of greenspace exposure on health are largely based on static contextual units, such as residential neighborhoods, and other administrative units.
Zhang L, Zhou S, Kwan MP, Chen F, Lin R.
europepmc +2 more sources
Influencing factors and measure of the activity space of the elderly: a case study of Kunming city
Shenzhen Daxue xuebao. Ligong ban, 2023 The study on the activity space could help us better understand the travel behavior of the elderly people, which is significant for improving the adaptability of the urban transportation system to social aging and promoting the transportation equity ...
HE Min +4 more
doaj +1 more source
ISPRS International Journal of Geo-Information, 2015 Due to its relatively high availability and low cost, location-based social network (LBSN) (e.g., Foursquare) data (a popular type of volunteered geographic information) seem to be an alternative or complement to survey data in the study of travel ...
Yeran Sun, Ming Li
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Spatial Underpinnings of Social Inequalities: A Vicious Circles of Segregation Approach
Social Inclusion, 2021 A paradigm shift is taking place in spatial segregation research. At the heart of this shift is the understanding of the connectedness of spatial segregation in different life domains and the availability of new datasets that allow for more detailed ...
Tiit Tammaru +4 more
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arXiv, 2023 While bacterial swarms can exhibit active turbulence in vacant spaces, they naturally inhabit crowded environments. We numerically show that driving disorderly active fluids through porous media enhances Darcy's law. While purely active flows average to zero flux, hybrid active/driven flows display greater drift than pure-driven fluids.
arxiv
Strong Electron Correlation in Nitrogenase Cofactor, FeMoco [PDF]
J. M. Montgomery and D. A. Mazziotti, J. Phys. Chem. A 2018, 2018 FeMoco, MoFe$_7$S$_9$C, has been shown to be the active catalytic site for the reduction of nitrogen to ammonia in the nitrogenase protein. An understanding of its electronic structure including strong electron correlation is key to designing mimic catalysts capable of ambient nitrogen fixation. Active spaces ranging from [54, 54] to [65, 57] have been
arxiv +1 more source