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Adaptive Niche Radii and Niche Shapes Approaches for Niching with the CMA-ES
Evolutionary Computation, 2010While the motivation and usefulness of niching methods is beyond doubt, the relaxation of assumptions and limitations concerning the hypothetical search landscape is much needed if niching is to be valid in a broader range of applications. Upon the introduction of radii-based niching methods with derandomized evolution strategies (ES), the purpose of ...
Ofer M. Shir +2 more
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On the limit to niche overlap for nonuniform niches
Theoretical Population Biology, 1976Abstract May and MacArthur (1972) have demonstrated that where several species are in competition for a single resource the requirement of long term population stability sets an upper limit to the allowable similarity of competing species. Their model considers a community of N species competing on a one dimensional resource continuum e.g., food ...
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Trends in Parasitology, 2007
Wolbachia are endosymbionts of arthropods and filarial nematodes. Arthropods infected with these endobacteria display altered reproductive phenotypes, including cytoplasmic incompatibility and sex-ratio distortion. In nematodes, the endobacteria are essential for embryogenesis and worm survival.
Kenneth M, Pfarr, Achim, Hoerauf
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Wolbachia are endosymbionts of arthropods and filarial nematodes. Arthropods infected with these endobacteria display altered reproductive phenotypes, including cytoplasmic incompatibility and sex-ratio distortion. In nematodes, the endobacteria are essential for embryogenesis and worm survival.
Kenneth M, Pfarr, Achim, Hoerauf
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Nature Reviews Microbiology, 2020
This study shows that Aspergillus fumigatus develops spatial hypoxic microenvironments during biofilm maturation that contribute to antifungal drug resistance.
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This study shows that Aspergillus fumigatus develops spatial hypoxic microenvironments during biofilm maturation that contribute to antifungal drug resistance.
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Blood, 2009
Abstract In this issue of Blood, Zou and colleagues unravel a long-standing mystery—how megakaryocyte precursors make the transition from the collagen-rich osteoblastic bone marrow niche to the collagen-poor vascular niche while expressing 2 receptors that interact with collagen—GpVI and the α2β1 integrin.
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Abstract In this issue of Blood, Zou and colleagues unravel a long-standing mystery—how megakaryocyte precursors make the transition from the collagen-rich osteoblastic bone marrow niche to the collagen-poor vascular niche while expressing 2 receptors that interact with collagen—GpVI and the α2β1 integrin.
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Science, 2020
Costa Rica is producing a new generation of skilled tropical biologists. But many can't find jobs at home.
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Costa Rica is producing a new generation of skilled tropical biologists. But many can't find jobs at home.
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Journal of Graph Theory, 1992
AbstractAn acyclic digraph D =(V U X, <) induces a finite graph G =(V, E) if for all v,v′ if and only if a vertex of D dominates v and v′, or is dominated by v and v′. The niche number of an induced G is the cardinality of a smallest X for which some D induces G. Many induced graphs have niche number 0, 1, or 2, but it has been an open problem as to
Peter C. Fishburn, William V. Gehrlein
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AbstractAn acyclic digraph D =(V U X, <) induces a finite graph G =(V, E) if for all v,v′ if and only if a vertex of D dominates v and v′, or is dominated by v and v′. The niche number of an induced G is the cardinality of a smallest X for which some D induces G. Many induced graphs have niche number 0, 1, or 2, but it has been an open problem as to
Peter C. Fishburn, William V. Gehrlein
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Genetica, 2010
The following syndrome of features occurs in several groups of phytophagous insects: (1) wingless females, (2) dispersal by larvae, (3) woody hosts, (4) extreme polyphagy, (5) high abundance, resulting in status as economic pests, (6) invasiveness, and (7) obligate parthenogenesis in some populations. If extreme polyphagy is defined as feeding on 20 or
Benjamin B, Normark, Norman A, Johnson
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The following syndrome of features occurs in several groups of phytophagous insects: (1) wingless females, (2) dispersal by larvae, (3) woody hosts, (4) extreme polyphagy, (5) high abundance, resulting in status as economic pests, (6) invasiveness, and (7) obligate parthenogenesis in some populations. If extreme polyphagy is defined as feeding on 20 or
Benjamin B, Normark, Norman A, Johnson
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Geriatric Nursing, 2002
Abstract Nurses Improving Care for Healthsystem Elders (NICHE) includes a set of tools that hospitals can use to improve care for their older patients and their families. The hospitals that have implemented NICHE depend on a small cadre of nurses prepared in geriatrics.
Ethel, Mitty +3 more
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Abstract Nurses Improving Care for Healthsystem Elders (NICHE) includes a set of tools that hospitals can use to improve care for their older patients and their families. The hospitals that have implemented NICHE depend on a small cadre of nurses prepared in geriatrics.
Ethel, Mitty +3 more
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Proceedings of the Virtual Reality International Conference: Laval Virtual, 2013
The aim of this paper is to connect studies in cognitive niches with the diffusion of high-technologies, cyborgs and robots, so to obtain a new framework for analyzing some dilemmas of future technological developments. Digital technologies dramatically boosted the niche constructing dynamics by allowing the construction of new informational ...
Tommaso Bertolotti, Lorenzo Magnani
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The aim of this paper is to connect studies in cognitive niches with the diffusion of high-technologies, cyborgs and robots, so to obtain a new framework for analyzing some dilemmas of future technological developments. Digital technologies dramatically boosted the niche constructing dynamics by allowing the construction of new informational ...
Tommaso Bertolotti, Lorenzo Magnani
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