Results 261 to 270 of about 4,674,553 (309)
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Journal of Theoretical Biology, 1989
The classical idea of an evolutionarily stable strategy (ESS) does not involve any spatial dependence. An evolution equation for analyzing games in a region is suggested and the possibility of spatial patterns is investigated. It is shown that an ESS is so stable that it forbids any spatial dependence but that other equilibria may have patterns ...
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The classical idea of an evolutionarily stable strategy (ESS) does not involve any spatial dependence. An evolution equation for analyzing games in a region is suggested and the possibility of spatial patterns is investigated. It is shown that an ESS is so stable that it forbids any spatial dependence but that other equilibria may have patterns ...
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Spatial patterns of mortality in Bangladesh
Social Science & Medicine, 1993This paper depicts the spatial patterns of mortality of the administrative upazilas of Bangladesh. Due to the absence of adequate data on mortality rates from across the country, the mortality rates of the upazilas are calculated from the age sex structure of the population of the respective upazilas employing the standardized mortality rates of ...
A H, Sharif +2 more
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Spatial sampling of printed patterns
IEEE Transactions on Pattern Analysis and Machine Intelligence, 1998The bitmap obtained by scanning a printed pattern depends on the exact location of the scanning grid relative to the pattern. We consider ideal sampling with a regular lattice of delta functions. The displacement of the lattice relative to the pattern is random and obeys a uniform probability density function defined over a unit cell of the lattice ...
Prateek Sarkar +3 more
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The spatial pattern of Enchytraeidae (Oligochaeta)
Oecologia, 1985Spatial pattern of enchytraeids (Oligochaeta: Enchytraeidae) was studied in an experimental plot in an apple orchard near Bavorov, South Bohemia, Czechoslovakia. A total of 450 soil cores were taken in 1982, all individuals were determined (juveniles to genus, mature individuals to species) and counted. In total, 17 species of 4 genera were found. Both
Josef, Chalupský, Jan, Lepš
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Spatial Integration in Glass Patterns
Perception, 2003The extraction of a global orientation structure presumably has a different neural mechanism from that of the analysis of its local features. We investigated spatial integration within these two mechanisms using stimulus patterns composed of dot pairs (dipoles). The stimuli targeted local feature detection, contained no global configuration, but rather
Ilmari, Kurki +3 more
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Smooth Spatial Filter for Common Spatial Patterns
2013Common Spatial Patterns CSPs is a popular feature extraction algorithm for Brain-Computer Interface BCI. However, the standard CSP spatial filters completely ignore the spatial information of EEG electrodes. To solve this problem, two smooth Regularized CSP RCSP algorithms are proposed in this paper, which are Spatially RCSP with a Gaussian Prior ...
Xuan Li 0001, Haixian Wang
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Spatial Patterns of Westerschelde Meiobenthos
Estuarine, Coastal and Shelf Science, 1994Abstract The meiobenthic fauna of the Westerschelde, a highly polluted and physically disturbed estuary in the south-west Netherlands, was investigated. Samples were taken in spring from six transects, including the intertidal, subtidal and channel area, and located along the salinity gradient.
Soetaert, K.E.R. +4 more
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Clustering of spatial point patterns
Computational Statistics & Data Analysis, 2006zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Guillermo Ayala +3 more
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Pattern formation in spatial economics
Chaos, Solitons & Fractals, 1993zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Evolution of spatial expression pattern
Evolution & Development, 2003Summary How can complex patterns of gene expression evolve? Understanding the near‐precise repeatability of morphology created by animal development, through the interactions between morphogens and networks of transcription factors, is one of the most difficult outstanding problems in developmental biology.
Louise J, Johnson, John F Y, Brookfield
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