Results 271 to 280 of about 424,898 (313)
Some of the next articles are maybe not open access.
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +3 more sources
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
openaire +3 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
Science, 2020
Costa Rica is producing a new generation of skilled tropical biologists. But many can't find jobs at home.
openaire +2 more sources
Costa Rica is producing a new generation of skilled tropical biologists. But many can't find jobs at home.
openaire +2 more sources
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.
openaire +2 more sources
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.
openaire +2 more sources
Science, 2006
A constellation of intrinsic and extrinsic cellular mechanisms regulates the balance of self-renewal and differentiation in all stem cells. Stem cells, their progeny, and elements of their microenvironment make up an anatomical structure that coordinates normal homeostatic production of functional mature cells.
Moore, Kateri A., Lemischka, Ihor R.
openaire +2 more sources
A constellation of intrinsic and extrinsic cellular mechanisms regulates the balance of self-renewal and differentiation in all stem cells. Stem cells, their progeny, and elements of their microenvironment make up an anatomical structure that coordinates normal homeostatic production of functional mature cells.
Moore, Kateri A., Lemischka, Ihor R.
openaire +2 more sources
Competition and the niche; the effect on niche width
1984By definition, competition occurs when interaction between two or more individuals or populations adversely affects growth, survival, fitness and/or population size of each, typically when a common resource is in short supply. The interactions can be direct through interference, territoriality etc., or indirect through exploitation, involving joint use
openaire +1 more source
The intestinal stem cell niche flexes its muscles
Nature Reviews Molecular Cell Biology, 2023Lisa Heinke
exaly
Proceedings of the 23rd annual ACM SIGUCCS conference on User services winning the networking game - SIGUCCS '95, 1995
openaire +2 more sources
openaire +2 more sources