Institution
University of Victoria
Education•Victoria, British Columbia, Canada•
About: University of Victoria is a education organization based out in Victoria, British Columbia, Canada. It is known for research contribution in the topics: Population & Galaxy. The organization has 14994 authors who have published 41051 publications receiving 1447972 citations. The organization is also known as: Victoria College.
Topics: Population, Galaxy, Large Hadron Collider, Health care, Poison control
Papers published on a yearly basis
Papers
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05 Jul 2010TL;DR: A distributed architecture where resource management is decomposed into independent tasks, each of which is performed by Autonomous Node Agents that are tightly coupled with the physical machines in a data center is adopted.
Abstract: In computing clouds, it is desirable to avoid wasting resources as a result of under-utilization and to avoid lengthy response times as a result of over-utilization. In this paper, we propose a new approach for dynamic autonomous resource management in computing clouds. The main contribution of this work is two-fold. First, we adopt a distributed architecture where resource management is decomposed into independent tasks, each of which is performed by Autonomous Node Agents that are tightly coupled with the physical machines in a data center. Second, the Autonomous Node Agents carry out configurations in parallel through Multiple Criteria Decision Analysis using the PROMETHEE method. Simulation results show that the proposed approach is promising in terms of scalability, feasibility and flexibility.
255 citations
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Aarhus University1, King Abdullah University of Science and Technology2, University of Exeter3, La Trobe University4, University of California, Santa Cruz5, Spanish National Research Council6, Curtin University7, Australian Institute of Marine Science8, University of California, Santa Barbara9, University of Bristol10, Centre for Environment, Fisheries and Aquaculture Science11, University of New Hampshire12, University of Auckland13, Leiden University14, Alfred Wegener Institute for Polar and Marine Research15, University of Victoria16
TL;DR: In this paper, the authors show that ocean sound affects marine animals at multiple levels, including their behavior, physiology, and, in extreme cases, survival, which should prompt management actions to deploy existing solutions to reduce noise levels in the ocean, thereby allowing marine animals to reestablish their use of ocean sound as a central ecological trait.
Abstract: Oceans have become substantially noisier since the Industrial Revolution. Shipping, resource exploration, and infrastructure development have increased the anthrophony (sounds generated by human activities), whereas the biophony (sounds of biological origin) has been reduced by hunting, fishing, and habitat degradation. Climate change is affecting geophony (abiotic, natural sounds). Existing evidence shows that anthrophony affects marine animals at multiple levels, including their behavior, physiology, and, in extreme cases, survival. This should prompt management actions to deploy existing solutions to reduce noise levels in the ocean, thereby allowing marine animals to reestablish their use of ocean sound as a central ecological trait in a healthy ocean.
254 citations
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TL;DR: Experimental support is established for the argument that CAZymes and associated genes obtained from extrinsic microbes add new catabolic functions to the human gut microbiome.
Abstract: Humans host an intestinal population of microbes—collectively referred to as the gut microbiome—which encode the carbohydrate active enzymes, or CAZymes, that are absent from the human genome. These CAZymes help to extract energy from recalcitrant polysaccharides. The question then arises as to if and how the microbiome adapts to new carbohydrate sources when modern humans change eating habits. Recent metagenome analysis of microbiomes from healthy American, Japanese, and Spanish populations identified putative CAZymes obtained by horizontal gene transfer from marine bacteria, which suggested that human gut bacteria evolved to degrade algal carbohydrates—for example, consumed in form of sushi. We approached this hypothesis by studying such a polysaccharide utilization locus (PUL) obtained by horizontal gene transfer by the gut bacterium Bacteroides plebeius. Transcriptomic and growth experiments revealed that the PUL responds to the polysaccharide porphyran from red algae, enabling growth on this carbohydrate but not related substrates like agarose and carrageenan. The X-ray crystallographic and biochemical analysis of two proteins encoded by this PUL, BACPLE_01689 and BACPLE_01693, showed that they are β-porphyranases belonging to glycoside hydrolase families 16 and 86, respectively. The product complex of the GH86 at 1.3 A resolution highlights the molecular details of porphyran hydrolysis by this new porphyranase. Combined, these data establish experimental support for the argument that CAZymes and associated genes obtained from extrinsic microbes add new catabolic functions to the human gut microbiome.
254 citations
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TL;DR: In this paper, seasonal food habits and activity patterns were examined for grizzly bears (Ursus arctos) in west-central Alberta, Canada, to better understand habitat requirements in a threatened population.
Abstract: Seasonal food habits and activity patterns were examined for grizzly bears (Ursus arctos) in west-central Alberta, Canada, to better understand habitat requirements in a threatened population. Food habits were based on an analysis of 665 feces collected from 18 grizzly bears between April and October 2001–2003. Trends in the use of foods were comparable to those of other central Rocky Mountain populations, with minor differences likely reflecting regional habitat and forage availability. Five activities (bedding, sweet vetch digging, insect feeding, frugivory, and ungulate kills) were identified for each of 1,032 field-visited global positioning system radiotelemetry locations from 9 female grizzly bears. We predicted the probability of each activity during relevant periods by time of day (crepuscular, diurnal, and nocturnal) and habitat. Selection ratios were used to assess which habitat and time periods were selected. Activity patterns changed considerably over a 24-h period, with foraging activities occurring mostly during diurnal and crepuscular periods and bedding at night. Habitats were important predictors of activity. Forested areas were selected for bedding areas, whereas digging, insect-foraging, and frugivory activities were associated with herbaceous, recently disturbed forest and open-canopy forests. We suggest that researchers consider behavior and time of day in analyses of habitat selection to improve explanations of habitat use and mechanisms of selection.
254 citations
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TL;DR: A model is constructed of how remote communication and knowledge management, cultural diversity and time differences negatively impact requirements gathering, negotiations and specifications in a multi-site organisation.
Abstract: The increasing globalisation of the software industry demands an investigation of requirements engineering (RE) in multi-site software development organisations Requirements engineering is a task difficult enough when done locally--but it is even more difficult when cross-functional stakeholder groups specify requirements across cultural, language and time zone boundaries This paper reports on a field study that investigated RE challenges introduced by the stakeholders' geographical distribution in a multi-site organisation The goal was to examine RE practices in global software development, and to formulate recommendations for improvement as well as to provide directions for future research on methods and tools Based on the empirical evidence, we have constructed a model of how remote communication and knowledge management, cultural diversity and time differences negatively impact requirements gathering, negotiations and specifications Findings reveal that aspects such as a lack of a common understanding of requirements, together with a reduced awareness of a working local context, a trust level and an ability to share work artefacts significantly challenge the effective collaboration of remote stakeholders in negotiating a set of requirements that satisfies geographically distributed customers The paper concludes with recommendations for improving RE practices in this setting
254 citations
Authors
Showing all 15188 results
Name | H-index | Papers | Citations |
---|---|---|---|
Jie Zhang | 178 | 4857 | 221720 |
D. M. Strom | 176 | 3167 | 194314 |
Sw. Banerjee | 146 | 1906 | 124364 |
Robert J. Glynn | 146 | 748 | 88387 |
Manel Esteller | 146 | 713 | 96429 |
R. Kowalewski | 143 | 1815 | 135517 |
Paul Jackson | 141 | 1372 | 93464 |
Mingshui Chen | 141 | 1543 | 125369 |
Ali Khademhosseini | 140 | 887 | 76430 |
Roger Jones | 138 | 998 | 114061 |
Tord Ekelof | 137 | 1212 | 91105 |
L. Köpke | 136 | 950 | 81787 |
M. Morii | 134 | 1664 | 102074 |
Arnaud Ferrari | 134 | 1392 | 87052 |
Richard Brenner | 133 | 1108 | 87426 |