The theory of r- and K-selection was one of the first predictive models for life-history evolution. It helped to galvanize the empirical field of comparative life-history and dominated thinking on the subject from the late 1960s through the 1970s.…
Papers in Biological Sciences
Miscellaneous papers in Biological Sciences, R
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In the field of biological regulation, models extracted from experimental works are usually complex networks comprising intertwined feedback circuits. The overall behavior is difficult to grasp and the development of formal methods is needed in…
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R 59 022 (6-2-4-(4-fluorophenyl) phenylmethylene)-1-piperidinylethyl-7-methyl-5H-thiazolo3,2-alpha pyrimidin-5-one) was found to inhibit diacylglycerol kinase in human red blood cell membranes at concentrations where polyphosphoinositide…
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(2008). . R Foundation for Statistical Computing, Vienna, Austria. ISBN 3-900051-07-0, URL .
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Since the emergence of a new influenza A(H1N1) virus in North America and its international spread, an active surveillance of cases of infection due to this virus has been set up in France in order to undertake appropriate measures to slow down the…
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This book presents examples and case studies on how to use R for data mining applications. This chapter introduces some basic concepts and techniques for data mining, including a data mining procedure and popular data mining techniques, such as…
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Populations were adapted in vitro under density-dependent and density-independent population controls. Comparison of strains fails to demonstrate any trade-off in adaptation under these population controls.
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The concepts of r and K selection and b and d selection are discussed and compared. The former pair of concepts will play a central role in the development of new theories in population biology which relax the assumptions that communities (and…
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Among the most threatened Madagascar ecosystems are the dry deciduous forests situated in the western portion of the island. Associated with varying sedimentary geological substrates, a high degree of microendemism can be found within these…
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New and improved antibiotics are urgently needed to combat the ever-increasing number of multidrug-resistant bacteria. In this study, we characterized several members of a new oxazolidinone family, R chi-01. This antibiotic family is distinguished…
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Platelet microparticles (PMPs) are small vesicles released from blood platelets upon activation. The procoagulant activity of PMPs has been previously mainly characterized by their ability to bind coagulation factors VIII and Va in reconstructed…
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Climate change is upon us. The Earth is warming, seasons are shifting, species are moving, and water is flowing at different times and in different amounts. The accelerating and deepening impacts of climate change will touch everyone on Earth in…
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Economic projections point to a need for approximately 1 million more STEM professionals than the U.S. will produce at the current rate over the next decade if the country is to retain its historical preeminence in science and technology. To meet…
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1. From the data presented herein it;is possible to deduce the following distribution of total N in humic substances and soils: proteinaceous materials (proteins, peptides, and amino acids) - ca. 40%; amino sugars 5-6%; heterocyclic N compounds…
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Several reactive oxygen species (ROS) are continuously produced in plants as byproducts of aerobic metabolism. Depending on the nature of the ROS species, some are highly toxic and rapidly detoxified by various cellular enzymatic and nonenzymatic…
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Theoretical and empirical research in technology acceptance, while acknowledging the importance of individual beliefs about the compatibility of a technology, has produced equivocal results. This study focuses on further conceptual development of…
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OBJECTIVE: To differentiate recurrent tumors from radiation effects and necrosis in patients with irradiated brain tumors using perfusion computed tomographic (PCT) imaging. METHODS: Twenty-two patients with previously treated brain tumors who…
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Sustainable Innovation, understood as the shift of sustainable technologies, products and services to the market, requires a market creation concept and one common global agenda. The challenge is to raise awareness among all actors of the different…
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Multi-walled carbon nanotubes (CNTs) have been efficiently synthesized by a self-heating detonation process, operated at low loading densities of picric acid (PA), which acts as the explosive to provide needed high temperatures and parts of carbon…
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We review the evidence of regime shifts in terrestrial and aquatic environments in relation to resilience of complex adaptive ecosystems and the functional roles of biological diversity in this context. The evidence reveals that the likelihood of…
Papers in associated sub-disciplines
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