“Endemism” Relative to Space, Time, and Taxonomic Level
نویسندگان
چکیده
منابع مشابه
Time – space harmonic polynomials relative to a Lévy process
Given a stochastic process X = {Xt, t ∈ R+} with finite moments of convenient order, a time–space harmonic polynomial relative to X is a polynomial Q(x, t) such that the process Mt =Q(Xt, t) is a martingale with respect to the filtration associated with X . Major examples are the Hermite polynomials relative to a Brownian motion, the Charlier polynomials relative to a Poisson process and the La...
متن کاملEvaluating of Relative and Absolute Cumulative Input Energy Time History subjected to Forward Directivity Earthquakes
In this article, to study the effect of pulse-type near-fault earthquakes on the seismic demands of steel moment frames, 15-story 2D-frame was analyzed under the influence of 20 near-fields with forward directivity effect and 2 far-field records. The relationship between Effective Cyclic Energy, ECE and displacement demands, velocity and hysteretic curve of SDOF systems in two near- and far-fau...
متن کاملPhylogeny imbalance: taxonomic level matters.
Two lines of evidence indicate that the degree of symmetry in phylogenetic topologies differs at different hierarchical levels. First, in a set of 61 phylogenies with superspecific taxa as their terminals, trees were on average more unbalanced (asymmetric) when the species richness of terminals was considered than when it was not. Second, nodes with a given number of higher taxa descended from ...
متن کاملSolution to time fractional generalized KdV of order 2q+1 and system of space fractional PDEs
Abstract. In this work, it has been shown that the combined use of exponential operators and integral transforms provides a powerful tool to solve time fractional generalized KdV of order 2q+1 and certain fractional PDEs. It is shown that exponential operators are an effective method for solving certain fractional linear equations with non-constant coefficients. It may be concluded that the com...
متن کاملThe Identity of Moses in Surah Al-Qasas with Reference to Time and Space
The question of identity in a narrative text is one of the most influential questions that need further study. The variations in the factors that may affect the concept of identity add to the complexity of the narrative text. The study aims at analyzing the main phases, stages, themes and events of Moses’ life story as part of the narrative discourse. The effects of time and place on the main e...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Annales Zoologici Fennici
سال: 2014
ISSN: 0003-455X,1797-2450
DOI: 10.5735/086.051.0223