Results 41 to 50 of about 1,370,356 (64)

Distributions and wave front sets in the uniform non-archimedean setting

, 2018
We study some constructions on distributions in a uniform $p$-adic context, and also in large positive characteristic, using model theoretic methods. We introduce a class of distributions which we call distributions of ${\mathscr C}^{\mathrm{exp}}$-class
Cluckers, Raf, Halupczok, Immanuel, Loeser, François, Raibaut, Michel   +3 more
core   +3 more sources

Spiral arm crossings inferred from ridges in Gaia stellar velocity distributions

, 2018
The solar neighborhood contains disc stars that have recently crossed spiral arms in the Galaxy. We propose that boundaries in local velocity distributions separate stars that have recently crossed or been perturbed by a particular arm from those that ...
Anders, Friedrich, Carrillo, Ismael, Chiappini, Cristina, Hilmi, Tariq, Khalatyan, Arman, McMillan, Paul, Minchev, Ivan, Monari, Giacomo, Quillen, Alice C., Steinmetz, Matthias   +9 more
core   +1 more source

Evaluating the capacity of species distribution modeling to predict the geographic distribution of the mangrove community in Mexico.

PLoS ONE, 2020
Mangroves are highly productive ecosystems that provide important environmental services, but have been impacted massively in recent years by human activities.
Karla Rodríguez-Medina, Carlos Yañez-Arenas, A Townsend Peterson, Jorge Euán Ávila, Jorge Herrera-Silveira   +4 more
doaj   +1 more source

Local influence diagnostics in elliptical multilevel models [PDF]

Anais da Academia Brasileira de Ciências
Local influence diagnostics for elliptical multilevel models are proposed in this paper. This class of models involves the use of continuous symmetric distributions, including heavy-tailed error models, and the normal distribution as a particular case ...
ROBERTO F. MANGHI, ÉRICA V. NOGUEIRA, AUDREY HELEN M.A. CYSNEIROS   +2 more
doaj   +1 more source

Local Equation of State and Velocity Distributions of a Driven Granular Gas

, 2004
We present event-driven simulations of a granular gas of inelastic hard disks with incomplete normal restitution in two dimensions between vibrating walls (without gravity).
A. Barrat, Annette Zippelius, I. Goldhirsch, J. P. Hansen, J. S. Urbach, Matthias Otto, Olaf Herbst, P. L. Krapivsky, Peter Müller   +8 more
core   +2 more sources

Electron cross talk and asymmetric electron distributions near the Earth's bowshock [PDF]

Annales Geophysicae, 2012
Electron distributions in the magnetosheath display a number of far from equilibrium features. It has been suggested that one factor influencing these distributions may be the large distances separating locations at which electrons with different ...
J. J. Mitchell, S. J. Schwartz, U. Auster   +2 more
doaj   +1 more source

Graphs with specified degree distributions, simple epidemics and local vaccination strategies

, 2007
Consider a random graph, having a pre-specified degree distribution F but other than that being uniformly distributed, describing the social structure (friendship) in a large community. Suppose one individual in the community is externally infected by an
Britton, Tom, Janson, Svante, Martin-Lof, Anders   +2 more
core   +3 more sources

Persistence Probabilities of the German DAX and Shanghai Index

, 2005
We present a relatively detailed analysis of the persistence probability distributions in financial dynamics. Compared with the auto-correlation function, the persistence probability distributions describe dynamic correlations non-local in time ...
B. Zheng, Challer, Challet, Cont, Derrida, Eguiluz, F. Ren, Feigenbaum, Ghashghaie, Giardina, Gopikrishnan, H. Lin, Huang, Jefferies, Krawiecki, L.Y. Wen, Laloux, Liu, Louzoun, Lux, Majumdar, Majumdar, Majumdar, Mantegna, Mantegna, Muzy, Oerding, Plerou, Ren, S. Trimper, Sornette, Stanley, Stauffer, Stauffer, Stauffer, Zheng, Zheng, Zheng, Zheng   +38 more
core   +2 more sources

Species traits shape the relationship between local and regional species abundance distributions

Ecosphere, 2019
The species abundance distribution (SAD) depicts the relative abundance of species within a community, which is a key concept in ecology. Here, we test whether SADs are more likely to either follow a lognormal‐like or follow a logseries‐like distribution
Murilo Dantas de Miranda, Luís Borda‐de‐Água, Henrique Miguel Pereira, Thomas Merckx   +3 more
doaj   +1 more source

Variability of the local φMS values over the gate area of MOS devices

Journal of Telecommunications and Information Technology, 2005
The local value distributions of the effective contact potential difference (ECPD or the φMS factor) over the gate area of Al-SiO2-Si structures were investigated for the first time.
Henryk M. Przewłock, Andrzej Kudła, Danuta Brzezińska, Hisham Z. Massoud   +3 more
doaj   +1 more source