Results 21 to 30 of about 2,998,922 (302)
Phylogenetic clustering of fungal communities in human‐disturbed streams
Ecosphere, 2016 Phylogenetic community structure is increasingly used to examine community assembly, but the influence of anthropogenic disturbance on phylogenetic community structure remains little explored.
H. Mykrä +4 more
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To be Neutral or Not Neutral? The In-Network Caching Dilemma
IEEE Internet Computing, 2018 Caching allows Internet Service Providers (ISPs) to reduce network traffic and Content Providers (CPs) to increase the offered QoS. However, when contents are encrypted, effective caching is possible only if ISPs and CPs cooperate. We suggest possible forms of non-discriminatory cooperation that make caching compliant with the principles of Net ...
Davide Andreoletti +4 more
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Oscillation of a higher order neutral difference equation with a forcing term
International Journal of Mathematics and Mathematical Sciences, 1999 The authors obtain oscillation results for the even order forced neutral difference equation Δm(yn+pnyn−k)+qnf(yn−ℓ)=hn. (*) Examples illustrating the results are included.
E. Thandapani +3 more
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Neutrality in the Metaorganism
PLOS Biology, 2018 Abstract Almost all animals and plants are inhabited by diverse communities of microorganisms, the microbiota, thereby forming an integrated entity, the metaorganism. Natural selection should favor hosts that shape the community composition of these microbes to promote a beneficial host-microbe symbiosis. Indeed, animal hosts often pose
Michael Sieber +13 more
openaire +6 more sources
The edge of neutral evolution in social dilemmas [PDF]
, 2009 The functioning of animal as well as human societies fundamentally relies on cooperation. Yet, defection is often favorable for the selfish individual, and social dilemmas arise.
Reichenbach, Tobias +2 more
core +1 more source
Periodic solutions of a neutral impulsive differential equation
上海师范大学学报. 自然科学版, 2017 In this paper, we consider a neutral impulsive differential equation. An impulsive predatorprey model with non-monotonic functional response is investigated. Some novel sufficient conditions are obtained for the nonexistence of periodic solutions and the
Hu Mi, Xia Yonghui
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Ecology Letters, 2007 Abstract Ecologists now recognize that controversy over the relative importance of niches and neutrality cannot be resolved by analyzing species abundance patterns. Here, we use classical coexistence theory to reframe the debate in terms of stabilizing mechanisms (niches) and fitness equivalence (neutrality).
Adler, Peter B. +2 more
openaire +3 more sources
Cogent Food & AgricultureThe extensive scale of tea production has resulted in a substantial demand for inputs such as fertilizers and pesticides in tea gardens, contributing to increased greenhouse gas emissions and environmental challenges.
Chao Zhang +5 more
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Cubo, 2019 In the case of nonlinear problems, whether in differential or difference equations, it is difficult and in some cases impossible to invert the problem and obtain a suitable mapping that can be effectively used in fixed point theory to qualitatively ...
Youssef N. Raffoul
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New Improved Results for Oscillation of Fourth-Order Neutral Differential Equations
Mathematics, 2021 In this study, a new oscillation criterion for the fourth-order neutral delay differential equation ruxu+puxδu‴α′+quxβϕu=0,u≥u0 is established. By introducing a Riccati substitution, we obtain a new criterion for oscillation without requiring the ...
Osama Moaaz +4 more
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