Results 31 to 40 of about 361,125 (246)
Reduced branching processes with very heavy tails [PDF]
, 2007 The reduced Markov branching process is a stochastic model for the genealogy of an unstructured biological population. Its limit behavior in the critical case is well studied for the Zolotarev-Slack regularity parameter $\alpha\in(0,1]$.
Lagerås, Andreas N., Sagitov, Serik
core +1 more source
Extinction phenomena: A biologic perspective on how and why psychoanalysis works
Frontiers in Psychology, 2011 This article presents the view that much of the success of classical psychoanalysis is centrally predicated on its biological potency; focusing not on neuropsychology, but on the biology of conditioning.
Linda A.W. Brakel
doaj +1 more source
Extinction risk and diversification are linked in a plant biodiversity hotspot. [PDF]
PLoS Biology, 2011 It is widely recognized that we are entering an extinction event on a scale approaching the mass extinctions seen in the fossil record. Present-day rates of extinction are estimated to be several orders of magnitude greater than background rates and are ...
T Jonathan Davies +12 more
doaj +1 more source
Correlates of extinction risk in Chinese endemic birds
Avian Research, 2019 Background China has a relative high degree of endemism of birds due to its large area, diversified topography, and varied climates and habitats. Among the 77 Chinese endemic birds, 29 species are classified as threatened according to the officially ...
Chuanwu Chen +5 more
doaj +1 more source
Extinction, periodicity and multistability in a Ricker Model of Stage-Structured Populations
, 2015 We study the dynamics of a second-order difference equation that is derived from a planar Ricker model of two-stage (e.g. adult, juvenile) biological populations.
Lazaryan, N., Sedaghat, H.
core +1 more source
FEBS Open Bio, EarlyView.dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon +6 more
wiley +1 more source
Global analysis of a new nonlinear stochastic differential competition system with impulsive effect
Advances in Difference Equations, 2017 We propose a new stochastic competition chemostat system with saturated growth rate and impulsive toxicant input. The main purpose of this paper is to study the stochastic dynamics of a high-dimensional impulsive stochastic chemostat model and find the ...
Xuejin Lv, Lu Wang, Xinzhu Meng
doaj +1 more source
Extinction risk of threatened and non-threatened mosses: Reproductive and ecological patterns
Global Ecology and Conservation, 2022 For the conservation of species, it is crucial to predict extinction risk by discerning drivers such as biological traits and habitat specificity within the current context of environmental change.
Juan Antonio Calleja +5 more
doaj +1 more source
Advanced Functional Materials, EarlyView.This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous
Mingfeng Xu +5 more
wiley +1 more source
Generating Cell Surface Nucleated Hydrogels with an Artificial Membrane‐Binding Transglutaminase
Advanced Functional Materials, EarlyView.Cell‐based therapies require advanced strategies to enhance cell delivery and bioactivity. Cell membrane engineering offers an avenue to impart new functions to delivered cells to boost their viability and function. Here, an artificial membrane‐binding transglutaminase is generated and biophysically characterized.
Rosalia Cuahtecontzi Delint +6 more
wiley +1 more source