نتایج جستجو برای: predatory stress

تعداد نتایج: 444002  

2009
Jorge Braz Torres David W. Boyd Manoel de Medeiros

Predaceous hemipteran feeding on different trophic levels have raised questions about their ecology and role in biological control. Therefore, specific adaptations allowing them to simultaneously use plants and animals as sources for their nutritional requirements are important. Enzymatic variability in predatory hemipterans has been suggested as the basic adaptation for convergent or divergent...

Journal: :The Journal of the Association of Nurses in AIDS Care : JANAC 2015
Lucy Bradley-Springer

Once upon a time there was an academic librarian at the University of Colorado who led a quiet librarian life until the day he noticed predators in the midst of scholarly publishing. Jeffrey Beall discovered, studied, revealed, and blogged about what he would eventually name Predatory Publishing. His Web site, Scholarly Open Access (http:// scholarlyoa.com), is an increasingly important source ...

2017
Anders Rydholm

© 2017 The Author(s). Published by Taylor & Francis on behalf of the Nordic Orthopedic Federation. This is an Open Access article distributed under the terms of the Creative Commons Attribution-Non-Commercial License (https://creativecommons.org/licenses/by-nc/3.0) DOI 10.1080/17453674.2017.1387731 The Open Access system is abused by an explosively increasing number of so-called predatory journ...

2011
Abdelouahed Gherbi Robert Charpentier

Software security represents a major concern as cyber attacks continue to grow in number and sophistication. One security-weakening factor is related to the standardized software ecosystem that facilitates the spread of malware in systems that share common vulnerabilities. In this overview article, the main concepts associated with diversity and software redundancy are described in the perspect...

2015
Carey Lambert Ian T. Cadby Rob Till Nhat Khai Bui Thomas R. Lerner William S. Hughes David J. Lee Luke J. Alderwick Waldemar Vollmer Elizabeth R. Sockett Andrew L. Lovering

Predatory Bdellovibrio bacteriovorus are natural antimicrobial organisms, killing other bacteria by whole-cell invasion. Self-protection against prey-metabolizing enzymes is important for the evolution of predation. Initial prey entry involves the predator's peptidoglycan DD-endopeptidases, which decrosslink cell walls and prevent wasteful entry by a second predator. Here we identify and charac...

1994
Brad M. Barber

We estimate continuous-time event-history models of the acquisition of conglomerate vs. non-conglomerate and predatory vs. friendly acquisitions among the 1962 Fortune 500 between January, 1963, and December, 1968. Our analysis of predatory acquisitions reveals that there were strong disciplinary motivations for these acquisitions in the 1960s. Q ratios were, by a large margin, the most importa...

2014
Nicola Giocoli

The paper analyzes the last three decades of debates about predatory pricing in US antitrust law, starting from the literature that followed Areeda and Turner’s 1975 landmark paper and ending in the beginning of this century, upon the Brooke 1993 decision. Special emphasis is given to the game-theoretic approach to predation and to the reasons why this approach has never gained attention in the...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1999
L A Dyer D K Letourneau

To test for direct and indirect effects of a top predator on three lower trophic levels, we conducted two multiyear predator addition experiments in a tropical wet forest. Periodic additions of a top predator (predatory clerid beetle) to a wet forest understory shrub caused a reduction in the predatory beetle's prey (a predatory ant), increased herbivory, and reduced leaf area of the plant. The...

Journal: :Ecology letters 2009
Daniel R MacNulty Douglas W Smith John A Vucetich L David Mech Daniel R Stahler Craig Packer

It is well established that ageing handicaps the ability of prey to escape predators, yet surprisingly little is known about how ageing affects the ability of predators to catch prey. Research into long-lived predators has assumed that adults have uniform impacts on prey regardless of age. Here we use longitudinal data from repeated observations of individually-known wolves (Canis lupus) huntin...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید