نتایج جستجو برای: high productivity

تعداد نتایج: 2125948  

Journal: :Ecology 2011
Cameron Wagg Jan Jansa Marina Stadler Bernhard Schmid Marcel G A van der Heijden

There is a great interest in ecology in understanding the role of soil microbial diversity for plant productivity and coexistence. Recent research has shown increases in species richness of mutualistic soil fungi, the arbuscular mycorrhizal fungi (AMF), to be related to increases in aboveground productivity of plant communities. However, the impact of AMF richness on plant-plant interactions ha...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Katyana A Vert-pre Ricardo O Amoroso Olaf P Jensen Ray Hilborn

Fish stocks fluctuate both in abundance and productivity (net population increase), and there are many examples demonstrating that productivity increased or decreased due to changes in abundance caused by fishing and, alternatively, where productivity shifted between low and high regimes, entirely unrelated to abundance. Although shifts in productivity regimes have been described, their frequen...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2016
Aleksandra M Lewandowska Antje Biermann Elizabeth T Borer Miguel A Cebrián-Piqueras Steven A J Declerck Luc De Meester Ellen Van Donk Lars Gamfeldt Daniel S Gruner Nicole Hagenah W Stanley Harpole Kevin P Kirkman Christopher A Klausmeier Michael Kleyer Johannes M H Knops Pieter Lemmens Eric M Lind Elena Litchman Jasmin Mantilla-Contreras Koen Martens Sandra Meier Vanessa Minden Joslin L Moore Harry Olde Venterink Eric W Seabloom Ulrich Sommer Maren Striebel Anastasia Trenkamp Juliane Trinogga Jotaro Urabe Wim Vyverman Dedmer B Van de Waal Claire E Widdicombe Helmut Hillebrand

Numerous studies show that increasing species richness leads to higher ecosystem productivity. This effect is often attributed to more efficient portioning of multiple resources in communities with higher numbers of competing species, indicating the role of resource supply and stoichiometry for biodiversity-ecosystem functioning relationships. Here, we merged theory on ecological stoichiometry ...

2013
Suresh M Babu Rajesh Raj S Natarajan

ABSTRACT An expected outcome of economic reforms in India is enhanced pace of industrialization with manufacturing sector playing a crucial role by increasing its share in output via higher investments and increased productivity. This process of industrialization was also expected to usher in possibilities for the slow growing states to catch up with the fast growing ones. This paper assesses t...

2017
Natallia Pashkevich Darek M. Haftor

The identification of the factors that condition a software programmer’s productivity remains a key challenge for both scholars and practitioners. While a number of studies have focused on the impact of one or a few particular factors, the way these factors jointly condition programmer productivity is still unknown. This paper presents a conceptual model aimed at a comprehensive understanding o...

2011
Jie Li Koichi Ishida Muzhi Zhao Ralf Diestelkaemper Xuan Wang Yin Lin

2013
Enzo Mingozzi Yonghe Liu

In response to the call for papers, we received a total of 148 submissions from 37 countries, well distributed across the various world regions and the conference topics. With such a large number of papers, the Technical Program Committee was faced with the daunting task of selecting the best papers. After a careful and strenuous review phase with all the papers receiving at least 3 reviews, fo...

Journal: :Human nature 2012
Hervey C Peoples Frank W Marlowe

We present a cross-cultural analysis showing that the presence of an active or moral High God in societies varies generally along a continuum from lesser to greater technological complexity and subsistence productivity. Foragers are least likely to have High Gods. Horticulturalists and agriculturalists are more likely. Pastoralists are most likely, though they are less easily positioned along t...

2005
Philip M. Johnson Michael G. Paulding

The high performance computing (HPC) community is increasingly aware that traditional low-level, execution-time measures for assessing high-end computers, such as flops/second, are not adequate for understanding the actual productivity of such systems. In response, researchers and practitioners are exploring new measures and assessment procedures that take a more wholistic approach to high perf...

اعظم, کمال , خدایاری, فریدون , منظم اسماعیل پور, محمدرضا , گل‌بابایی, فریده ,

Introduction: Heat is one of the hazardous physical agents in the workplace. Exposure to heat and consequent thermal stress influence workers productivity in addition to adverse health effects. The aim of this study was to determine the heat stress induced productivity loss related to different tasks of farmers in Darreh Shahr city, during summer. . Material and Method: This cross-sectional stu...

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