Results 11 to 20 of about 81,987 (219)

Evaluation the Distribution of Effective Factors on Habitat Diversity in Kermanshah Protected Areas

open access: yesجغرافیا و پایداری محیط, 2020
Destruction and habitat fragmentation are considered as the most challenging issues of biodiversity and establishment of protected areas is one of preventive methods to reduce biodiversity. Therefore, there are different criteria to choose it. Kermanshah
Peyman Karami   +2 more
doaj   +1 more source

The impact of the diagonals of polynomial forms on limit theorems with long memory [PDF]

open access: yes, 2016
We start with an i.i.d. sequence and consider the product of two polynomial-forms moving averages based on that sequence. The coefficients of the polynomial forms are asymptotically slowly decaying homogeneous functions so that these processes have long ...
Bai, Shuyang, Taqqu, Murad S.
core   +1 more source

Quasi-invariant measures on the path space of a diffusion [PDF]

open access: yes, 2006
The author has previously constructed a class of admissible vector fields on the path space of an elliptic diffusion process $x$ taking values in a closed compact manifold.
Bell, Denis
core   +3 more sources

On weighted depths in random binary search trees [PDF]

open access: yes, 2017
Following the model introduced by Aguech, Lasmar and Mahmoud [Probab. Engrg. Inform. Sci. 21 (2007) 133-141], the weighted depth of a node in a labelled rooted tree is the sum of all labels on the path connecting the node to the root. We analyze weighted
Aguech, Rafik   +2 more
core   +3 more sources

Analysis and optimization of pilot symbol-assisted Rake receivers for DS-CDMA systems [PDF]

open access: yes, 2006
The effect of imperfect channel estimation (CE) on the performance of pilot-symbol-assisted modulation (PSAM) and MRC Rake reception over time- or frequency-selective fading channels with either a uniform power delay profile (UPDP) or a nonuniform power ...
Cui, Tao, Tellambura, Chintha
core   +1 more source

Stein's method meets Malliavin calculus: a short survey with new estimates [PDF]

open access: yes, 2009
We provide an overview of some recent techniques involving the Malliavin calculus of variations and the so-called ``Stein's method'' for the Gaussian approximations of probability distributions.
Nourdin, Ivan, Peccati, Giovanni
core   +6 more sources

Noncrop features and heterogeneity mediate overwintering bird diversity in agricultural landscapes of southwest China

open access: yesEcology and Evolution, 2020
Farmland birds are of conservation concerns around the world. In China, conservation management has focused primarily on natural habitats, whereas little attention has been given to agricultural landscapes.
Depin Li   +4 more
doaj   +1 more source

Multivariate limit theorems in the context of long-range dependence [PDF]

open access: yes, 2013
We study the limit law of a vector made up of normalized sums of functions of long-range dependent stationary Gaussian series. Depending on the memory parameter of the Gaussian series and on the Hermite ranks of the functions, the resulting limit law may
Bai, Shuyang, Taqqu, Murad S.
core   +3 more sources

Clonal Characteristics of T-Cell Receptor Repertoires in Violent and Non-violent Patients With Schizophrenia

open access: yesFrontiers in Psychiatry, 2018
Background: Activated or impaired T-cell function in inflammatory and degenerative process can contribute to the risk and progression of schizophrenia.
Qiguang Li   +10 more
doaj   +1 more source

Behavior of the generalized Rosenblatt process at extreme critical exponent values [PDF]

open access: yes, 2017
The generalized Rosenblatt process is obtained by replacing the single critical exponent characterizing the Rosenblatt process by two different exponents living in the interior of a triangular region.
Bai, Shuyang, Taqqu, Murad S.
core   +1 more source

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