Results 41 to 50 of about 2,170,238 (197)

Analysis of a spatial Lotka-Volterra model with a finite range predator-prey interaction

, 2011
We perform an analysis of a recent spatial version of the classical Lotka-Volterra model, where a finite scale controls individuals' interaction. We study the behavior of the predator-prey dynamics in physical spaces higher than one, showing how spatial ...
A. Liebhold, A. Lipowski, A.J. McKane, A.M. Turing, B. Houchmandzadeh, Black, Bladon, C.A. Lugo, D. Alonso, D. Mollison, Dauxois, E. Brigatti, E. Brigatti, E. Brigatti, E. Brigatti, E. Hernandez-Garcia, E. Hernandez-Garcia, E.E. Holmes, E.H. Hebblewhite, F. Bagnoli, J. Bascompte, J.E. Satulovsky, M. Mobilia, M. Núñez-López, M. Oliva, M. Scheffer, M.A. Fuentes, O.N. Bjørnstad, P. de Anna, P. Szabó, P.A.P. Moran, P.C. Tobin, R. MacArthur, S.L. Lima, T. Biancalani, T. Butler, U. Dieckmann, V. Schwämmle, W.G. Wilson   +38 more
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Verification of Geographic Laws Hidden in Textual Space and Analysis of Spatial Interaction Patterns of Information Flow

ISPRS International Journal of Geo-Information, 2023
The rapid development of Internet technology has formed a huge virtual information space. In the information space, information flow has become a link of communication between objects.
Lin Liu, Hang Li, Dongmei Pei, Shuai Liu
doaj   +1 more source

The Effect Of Omitted Spatial Effects And Social Dependence In The Modelling Of Household Expenditure For Fruits And Vegetables [PDF]

, 2014
We find the omitted elements of the external environment affect negatively the estimates for other spatial (social) effect parameters. Especially, we notice the overestimation of the random effect variance when the social dependence is omitted and the ...
Dong, Guanpeng, Harris, Richard, Łaszkiewicz, Edyta   +2 more
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The Scale Effect on Spatial Interaction Patterns: An Empirical Study Using Taxi O-D data of Beijing and Shanghai

IEEE Access, 2018
Spatial scale is a fundamental issue for geographical phenomena because the size of the spatial unit adopted for analysis can have a significant effect on aggregated spatial data and the corresponding analytical results. There exists much research on the
Shiliang Zhang, Di Zhu, Xin Yao, Ximeng Cheng, Huagui He, Yu Liu   +5 more
doaj   +1 more source

Urban Network Spatial Connection and Structure in China Based on Railway Passenger Flow Big Data

Land, 2022
China’s transportation industry has made great achievements in the past 40 years of reform and opening up. At the same time, it has gradually accumulated a series of problems.
Minmin Li, Wenhua Guo, Renzhong Guo, Biao He, Zhichao Li, Xiaoming Li, Wenchao Liu, Yong Fan   +7 more
doaj   +1 more source

Une remarque sur la permanence des systèmes spatialisés

Cybergeo, 1997
The concept of systems is clearly deeply rooted in ecological thinking. However, the importance of space in the interactions within a system is fairly new.
Alain Franc
doaj   +1 more source

Weak Gravity Conjecture and Holographic Dark Energy Model with Interaction and Spatial Curvature [PDF]

, 2010
In the paper, we apply the weak gravity conjecture to the holographic quintessence model of dark energy. Three different holographic dark energy models are considered: without the interaction in the non-flat universe; with interaction in the flat ...
A. G. Riess, A. Sen, C. Vafa, Cheng-Yi Sun, D. N. Spergel, D. N. Spergel, G.'t Hooft, H. Wei, K. Abazajian, K. Abazajian, L. Susskind, M. Li, N. Arkani-Hamed, Q. G. Huang, Q. G. Huang, Q. G. Huang, S. M. Carroll, S. Perl-mutter, V. Sahni, V. Sahni, X. Chen, X. Wu, Y. Z. Ma   +22 more
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Which distance-decay function for migration and which one for commuting? A case study of Slovenia

Croatian Operational Research Review, 2014
The volume of social interactions like migration and commuting between two locations depends significantly on the distance between them. In the paper, we analysed the shape and parameters of several distance-decay functions for commuting and for ...
Samo Drobne, Mitja Lakner
doaj   +1 more source

Interaksi Spasial Kondisi Sosial-Ekonomi Terhadap Kerawanan Kejahatan Di Kota Bandung (Studi Kasus Sumur Bandung)

Jambura Geoscience Review, 2019
Crime is an unplanned change due to the process of urban development. The geographical approach is able to analyze spatial interactions of criminogenic factors into crime phenomenon.
Moh. Dede, Dede Sugandi, Iwan Setiawan
doaj   +1 more source

Quantum Walk of Two Interacting Bosons

, 2011
We study the effect of interactions on the bosonic two-particle quantum walk and its corresponding spatial correlations. The combined effect of interactions and Hanbury-Brown Twiss interference results in unique spatial correlations which depend on the ...
Bromberg, Yaron, Huber, Sebastian D., Lahini, Yoav, Pugatch, Rami, Silberberg, Yaron, Verbin, Mor   +5 more
core   +1 more source