Results 31 to 40 of about 58,186 (254)
Global Ecology and Conservation, 2014 Overpopulation of African elephants (Loxodonta africana) in fenced reserves in South Africa is becoming increasingly problematic to wildlife managers.
L.S. Doughty +4 more
doaj +1 more source
A survey of parallel execution strategies for transitive closure and logic programs [PDF]
, 1993 An important feature of database technology of the nineties is the use of parallelism for speeding up the execution of complex queries. This technology is being tested in several experimental database architectures and a few commercial systems for ...
Cacace, F., Ceri, S., Houtsma, M.A.W.
core +4 more sources
Phase transitions and dimensional reduction
Nuclear Physics B, 1991 Using field theoretic methods a formalism is presented within which the critical behaviour of a system undergoing a dimensional reduction may be investigated. As a paradigm we study an Ising-like system on S1 × R3−ϵ. If the size of the system is L, and the correlation length ξ, then as Lξ varies it is possible to get critical behaviour associated with ...
Denjoe O'Connor, C.R. Stephens
openaire +1 more source
Internal representation of hierarchical sequences involves the default network
BMC Neuroscience, 2010 Background The default network is a set of brain regions that exhibit a reduction in BOLD response during attention-demanding cognitive tasks, and distinctive patterns of functional connectivity that typically include anti-correlations with a fronto ...
Rogers Baxter P +2 more
doaj +1 more source
Fastest mixing Markov chain on graphs with symmetries
, 2007 We show how to exploit symmetries of a graph to efficiently compute the fastest mixing Markov chain on the graph (i.e., find the transition probabilities on the edges to minimize the second-largest eigenvalue modulus of the transition probability matrix).
Boyd, Stephen +3 more
core +4 more sources
Advanced Science, EarlyView.Bacterial α‐diversity decreases, but stochasticity and community stability increase across the 15 m‐depth vertical profiles and along the degraded gradient within the active layer. The abundance and interaction of core taxa mainly control community stability in the active and permafrost layers, respectively.
Shengyun Chen +13 more
wiley +1 more source
Advanced Intelligent Discovery, EarlyView.This study integrates random matrix theory (RMT) and principal component analysis (PCA) to improve the identification of correlated regions in HIV protein sequences for vaccine design. PCA validation enhances the reliability of RMT‐derived correlations, particularly in small‐sample, high‐dimensional datasets, enabling more accurate detection of ...
Mariyam Siddiqah +3 more
wiley +1 more source
Journal of Clinical and Translational Science, 2019 OBJECTIVES/SPECIFIC AIMS: This study will elucidate what percent of unnecessary ED visits for chronic conditions can be reduced by extant telemedicine devices, and which telemedicine devices can yield the greatest reduction in unnecessary ED visits for ...
Simeon Abiola, Kimberly Arcoleo
doaj +1 more source
Invariant Measure and Universality of the 2D Yang–Mills Langevin Dynamic
Communications on Pure and Applied Mathematics, EarlyView.ABSTRACT We prove that the Yang–Mills (YM) measure for the trivial principal bundle over the two‐dimensional torus, with any connected, compact structure group, is invariant for the associated renormalised Langevin dynamic. Our argument relies on a combination of regularity structures, lattice gauge‐fixing and Bourgain's method for invariant measures ...
Ilya Chevyrev, Hao Shen
wiley +1 more source
Strongly regular edge-transitive graphs [PDF]
, 2009 In this paper, we examine the structure of vertex- and edge-transitive strongly regular graphs, using normal quotient reduction. We show that the irreducible graphs in this family have quasiprimitive automorphism groups, and prove (using the ...
Morris, Joy +2 more
core +1 more source