Results 291 to 300 of about 33,460,079 (338)
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Using Niche‐Based Models to Improve the Sampling of Rare Species

Conservation Biology, 2006
Abstract:  Because data on rare species usually are sparse, it is important to have efficient ways to sample additional data. Traditional sampling approaches are of limited value for rare species because a very large proportion of randomly chosen sampling sites are unlikely to shelter the species.
Guisan, Antoine   +6 more
openaire   +6 more sources

Emerging innovation niches: An agent based model

Research Policy, 2013
Abstract The creation of an innovation niche depends on the interaction of three mechanisms involving: converging expectations, networking among the innovation actors, and learning about the novelty through efficient knowledge creation and diffusion. Such mechanisms define the key characteristics of a network of firms (i.e. the innovation niche), and
LOPOLITO, ANTONIO, P. Morone, R. Taylor
openaire   +2 more sources

Modeling and simulation study of the stoichiometric niche space and niche overlap based on the copula method

Environmental and Ecological Statistics, 2020
To qualify niche space and niche overlap, the current methods are based on a strict assumption of the normal distribution and restrict dependence to the linear structure between resource axes. In this study, we propose a new method for measuring the stoichiometric niche space and niche overlap based on copula theory.
Shaoqian Huang   +4 more
openaire   +1 more source

A Reference Business Process for Ecological Niche Modelling

open access: yesEcological Informatics, 2008
Ecological niche modelling combines species occurrence points with environmental raster layers in order to obtain models for describing the probabilistic distribution of species. The process to generate an ecological niche model is complex.
SIQUEIRA, M. F. de   +3 more
exaly   +2 more sources

Microfluidic-based models to address the bone marrow metastatic niche complexity

Seminars in Cell & Developmental Biology, 2021
Bone marrow (BM) is a preferential metastatic site for solid cancers, contributing to higher morbidity and mortality among millions of oncologic patients worldwide. There are no current efficient therapies to minimize this health burden. Microfluidic based in vitro models emerge as powerful alternatives to animal testing, as well as promising tools for
Patrícia, Ribeiro   +6 more
openaire   +2 more sources

Simulation-Based Approaches for Ecological Niche Modelling

2016
Over recent years, many modelling approaches have been used to map and monitor both present and potential distribution of species in the context of ecological niche-based conservation, especially in the face of global environmental change. Using different statistical techniques in a built-in geographic information system (GIS), the development of ...
Anusheema Chakraborty, P K Joshi
openaire   +1 more source

ntbox: An r package with graphical user interface for modelling and evaluating multidimensional ecological niches

Methods in Ecology and Evolution, 2020
Biodiversity studies rely heavily on estimates of species' distributions often obtained through ecological niche modelling. Numerous software packages exist that allow users to model ecological niches using machine learning and statistical methods ...
Luis Osorio-Olvera   +8 more
semanticscholar   +1 more source

An evidence-based change management model to guide NICHE implementation efforts

Geriatric Nursing, 2023
Changing practice is complex and multifaceted. I discuss an evidence-based change management model that can be applied to guide clinical practice improvement projects. I use NICHE as a case example. The overall success of any change initiatives relies on creating and following an action plan to address the "what of change" and the "how of change". The "
openaire   +2 more sources

A Niching Gene Expression Programming Algorithm Based on Parallel Model

2007
GEP is a biologically motivated machine learning technique used to solve complex multitude problems. Similar to other evolution algorithms, GEP is slow when dealing with a large number of population. Considering that the parallel GEP has great efficiency and the niching method can keep diversity in the process of exploring evolution, a niching GEP ...
Yishen Lin, Hong Peng, Jia Wei
openaire   +2 more sources

Construction of Sequential Classifier Based on MacArthur’s Overlapping Niches Model

2014
This paper presents the problem of building the sequential model of the classification task. In our approach the structure of the model is built in the learning phase of classification. In this paper a split criterion based on the MacArthur’s overlapping niches model is proposed.
Robert Burduk, Pawel Trajdos
openaire   +2 more sources

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