Results 11 to 20 of about 927,461 (351)

Dataset on the toxic effects of aflatoxin and ochratoxin a on the human gastric smooth muscle cells

open access: yesData in Brief, 2019
This dataset determined the effects of aflatoxins (B1, B2, G1 and G2) and Ochratoxin A extracted from ginger collected purposively from different retails in Mafikeng, North West province of South Africa, on the Human Gastric Smooth Muscle Cells.
Oluwadara Pelumi Omotayo   +3 more
doaj   +1 more source

The Niche

open access: yesNoûs, 1999
The concept of niche (setting, context, habitat, environment) has been little studied by ontologists, in spite of its wide application in a variety of disciplines from evolutionary biology to economics. What follows is a first formal theory of this concept, a theory of the relations between objects and their niches. The theory builds upon existing work
Smith, Barry, Varzi, Achille C.
openaire   +2 more sources

Niche divergence and limits to expansion in the high polyploid Dianthus broteri complex [PDF]

open access: yes, 2019
Niche evolution in plant polyploids remains controversial and evidence for alternative patterns has been reported. Using the autopolyploid Dianthus broteri complex (2×, 4×, 6× and 12×) as a model, we aimed to integrate three scenarios – competitive ...
Balao Robles, Francisco J.   +2 more
core   +1 more source

The neural crest is a source of mesenchymal stem cells with specialized hematopoietic stem cell niche function

open access: yeseLife, 2014
Mesenchymal stem cells (MSCs) and osteolineage cells contribute to the hematopoietic stem cell (HSC) niche in the bone marrow of long bones. However, their developmental relationships remain unclear.
Joan Isern   +7 more
doaj   +1 more source

A strategic niche management approach for shaping bio-based economy in Europe [PDF]

open access: yes, 2018
The goal of this paper is to investigate the transition towards a bio-based economy as part of a broader sustainable transition in Europe. To analyse the challenges and opportunities associated with the bio-based economy, we applied the Strategic Niche ...
Tani, Almona
core   +1 more source

Determining trophic niche width: a novel approach using stable isotope analysis [PDF]

open access: yes, 2004
1. Although conceptually robust, it has proven difficult to find practical measures of niche width that are simple to obtain, yet provide an adequate descriptor of the ecological position of the population examined. 2.
Adams, C.E.   +4 more
core   +1 more source

a variational approach to niche construction [PDF]

open access: yes, 2018
In evolutionary biology, niche construction is sometimes described as a genuine evolutionary process whereby organisms, through their activities and regulatory mechanisms, modify their environment such as to steer their own evolutionary trajectory, and ...
Campbell, John   +4 more
core   +2 more sources

Formation of iron sulfide at faecal pellets and other microniches within suboxic surface sediment. [PDF]

open access: yes, 2010
Faecal pellet deposition and bioturbation may lead to heterogeneously distributed particles of localized highly reactive organic matter (microniches) being present below the oxygen penetration depth.
Davison, William   +3 more
core   +1 more source

Niche hypergraphs

open access: yesDiscussiones Mathematicae Graph Theory, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Garske Christian   +2 more
openaire   +3 more sources

Evaluating the ecological realism of plant species distribution models with ecological indicator values [PDF]

open access: yes, 2020
Species distribution models (SDMs) are routinely applied to assess current as well as future species distributions, for example to assess impacts of future environmental change on biodiversity or to underpin conservation planning.
Ellenberg H.   +16 more
core   +1 more source

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