نتایج جستجو برای: ecosystems

تعداد نتایج: 45922  

2005
David Cadiz Terri L. Griffith John E. Sawyer

We present the development and validity field testing of two new measures: Absorptive Capacity and Experienced Community of Practice. We propose the Knowledge Transfer Ecosystem (KTE) as a model for organizing the different facets of knowledge transfer. We used a holdout sample of 1,980 engineers from a larger study in a Fortune 500 technology company to develop and test a 9-item scale of Absor...

2010
Christian M. Wurzbacher Felix Bärlocher Hans-Peter Grossart

This review highlights the presence and ecological roles of fungi in lakes, and aims to stimulate research in aquatic mycology. In the study of lentic systems, this field is an almost completely neglected topic and, if considered at all, has often been restricted to specific groups of fungi, such as yeasts, filamentous fungi (e.g. aquatic hyphomycetes), or phycomycetes (an obsolete taxonomic ca...

Journal: :Frontiers in microbiology 2015
Andreas Teske Anna-Louise Reysenbach

The papers in the " Hydrothermal Vent " research topic cover a range of microbiological research in deep and shallow hydrothermal environments, from high temperature " black smokers, " to diffuse flow habitats and episodically discharging subsurface fluids, to the hydrothermal plumes. Together they provide a snapshot of current research interests in a field that has evolved rapidly since the di...

2015
Gordon Bonan

When viewed from space, Earth is seen as a blue marble. The dominant features of the planet are the blue of the oceans and the white of the clouds traversing the atmosphere. It is an image of fluids – water and air – in motion. Indeed, the study of Earth’s climate is dominated by the geophysical principles of fluid dynamics. With closer inspection, however, one can discern land masses – the con...

2002
Jon McCormack

This paper describes a novel type of artistic Artificial Life environment. Evolving agents, who have the ability to make and listen to sound, populate a synthetic world. An evolvable, rule-based system drives agent behaviour. Agents compete for limited resources in a virtual environment that is influenced by the presence and movement of the artwork’s audience. Through a link between the real an...

2008
Robert L. Knight

Springs and spring runs represent a unique class of aquatic ecosystems typified by high water clarity and relatively constant water temperature and chemical conditions. Structurally, springs are best characterized by their basin morphometry (shape and volume), their position in the landscape, and their flora and fauna. A classic aquatic food web and biomass pyramid in spring ecosystems includes...

2012
Katarína Merganičová Ján Merganič Miroslav Svoboda Radek Bače Vladimír Šebeň

Until recently, deadwood was perceived as a negative element of forest ecosystems, that indicates “mismanagement, negligence, and wastefulness” of the applied forest management (Stachura et al., 2007). It was regarded as a potential source of biotic pests, mainly insects (Bütler, 2003; Marage & Lemperiere, 2005), to remaining trees in a forest as well as to adjacent stands (Pasierbek et al., 20...

2013
Ekananta Manalif Luiz Fernando Capretz Danny Ho

Software ecosystems is a new concept in the software arena that emphasizes the inter-networked activities that take place amongst entities during software development and operation. The core of this approach is building the application around shared platforms that are open to every party inside and outside an organizational boundary. This approach has been adopted by software companies in respo...

2009
Jay E. Steele Robert Geist

Real-time cinematic relighting of large, forest ecosystems remains a challenging problem, in that important global illumination effects, such as leaf transparency and inter-object light scattering, are difficult to capture, given tight timing constraints and scenes that typically contain hundreds of millions of primitives. A solution that is based on a lattice-Boltzmann method is suggested. Ref...

Journal: :Annali dell'Istituto superiore di sanita 2002
Giovanni Damiani

There is mounting evidence that traditional investigations are no longer sufficient either to assess the ecological characteristics of a resource or to better understand the dynamics of an ecosystem. Reliable experimental data to be used for further investigation as well as for environmental corrective action are obtained using the traditional quantitative and qualitative biological methods. In...

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