Ecological and Evolutionary Responses to Recent Climate Change
Ecological changes in the phenology and distribution of plants and animals are occurring in all well-studied marine, freshwater, and terrestrial groups. These observed changes a...
Publications
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1,437 publications
A Cluster Separation Measure
A measure is presented which indicates the similarity of clusters which are assumed to have a data density which is a decreasing function of distance from a vector characteristi...
Asset Stock Accumulation and Sustainability of Competitive Advantage
Given incomplete factor markets, appropriate time paths of flow variables must be chosen to build required stocks of assets. That is, critical resources are accumulated rather t...
Teachers’ Beliefs and Educational Research: Cleaning Up a Messy Construct
Attention to the beliefs of teachers and teacher candidates should be a focus of educational research and can inform educational practice in ways that prevailing research agenda...
Institutions and organizations
Institutions—the structures, practices, and meanings that define what people and organizations think, do, and aspire to—are created through process. They are “work in progress” ...
Qualitative research in health care: Analysing qualitative data
This is the second in a series of three articles Contrary to popular perception, qualitative research can produce vast amounts of data. These may include verbatim notes or tra...
Varieties of Capitalism
Abstract Applying the new economics of organization and relational theories of the firm to the problem of understanding cross‐national variation in the political economy, this v...
The feasibility of creating a checklist for the assessment of the methodological quality both of randomised and non-randomised studies of health care interventions.
OBJECTIVE: To test the feasibility of creating a valid and reliable checklist with the following features: appropriate for assessing both randomised and non-randomised studies; ...
Ant colony system: a cooperative learning approach to the traveling salesman problem
This paper introduces the ant colony system (ACS), a distributed algorithm that is applied to the traveling salesman problem (TSP). In the ACS, a set of cooperating agents calle...
Pharmaceuticals, Hormones, and Other Organic Wastewater Contaminants in U.S. Streams, 1999−2000: A National Reconnaissance
To provide the first nationwide reconnaissance of the occurrence of pharmaceuticals, hormones, and other organic wastewater contaminants (OWCs) in water resources, the U.S. Geol...
EFFECTS OF BIODIVERSITY ON ECOSYSTEM FUNCTIONING: A CONSENSUS OF CURRENT KNOWLEDGE
Humans are altering the composition of biological communities through a variety of activities that increase rates of species invasions and species extinctions, at all scales, fr...