Results 91 to 100 of about 166,151,046 (211)

Genetic Diversity, Adaptation, Wild Introgression, and Coat Color Mutation of Golden Yak

Animal Research and One Health, EarlyView.
Genetic diversity, adaptation, wild introgression, and coat color mutation of golden yak from two populations on the Qinghai‐Xizang Plateau. ABSTRACT The golden yak lives on the Qinghai‐Xizang Plateau with a golden coat and adapts to high altitudes and strong ultraviolet environment. The golden coat is a prominent phenotype in many domesticated species,
Huixuan Yan, Jialei Chen, Chuzhao Lei, Fengwei Zhang, Shunzhong He, Weiru Song, Hongyan Ma, Shuling Li, Guomei Li, Laba Yongcuo, Jianlin Han, Johannes A. Lenstra, Qiang Zhang, Rende Song, Basang Wangdui, Ningbo Chen   +15 more
wiley   +1 more source

Modelling extreme financial returns of global equity markets [PDF]

Extreme asset price movements appear to be more pronounced recently and have major consequences for an economy’s financial stability and monetary policies.
Cotter, John
core  

Genomic Structural Variations Provide Insights Into Litter Size and Teat Number Traits in Hu Sheep

Animal Research and One Health, EarlyView.
Here, we conducted whole genome sequencing on 300 Hu sheep with an average depth of 16.51X. Two candidate genes associated with litter size and teat number traits were identified, namely MAST2 and AFDN. ABSTRACT Litter size and the teat number are important economic indicators in sheep production.
Xin Xiang, Wei Dai, Jiqiang Liu, Zhengguang Wang   +3 more
wiley   +1 more source

Gaussian Tests of "Extremal White Noise" for Dependent, Heterogeneous, Heavy Tailed Strochastic Processes with an Application [PDF]

We develop a non-parametric test of tail-specific extremal serial dependence for possibly heavy-tailed time series. The test statistic is asymptotically chi-squared under a null of "extremal white noise", as long as extremes of the time series are Near ...
Jonathan B. Hill
core  

Histories in bone: Navigating the ethical landscape of human skeletal collections in South Africa

Anatomical Sciences Education, EarlyView.
Abstract Provenance is at the center of addressing the complicated ethical stewardship of legacy human skeletal collections. Many South African (SA) health science institutions have skeletal collections. While the history of the collections and the demographics of the skeletons have been reported, the provenance of the individuals within the ...
Quenth Chinenere, Beverley Kramer, Brendon K. Billings   +2 more
wiley   +1 more source

Extreme Value Index Estimators and Smoothing Alternatives: Review and Simulation Comparison [PDF]

Extreme-value theory and corresponding analysis is an issue extensively applied in many different fields. The central point of this theory is the estimation of a parameter γ, known as extreme-value index.
Panaretos, John, Tsourti, Zoi
core  

Emotional responses of veterinary students to first encounters with animal body donors

Anatomical Sciences Education, EarlyView.
Abstract Students' first encounters with animal body donors in higher education are a formative and also potentially stressful experience. The complex emotions elicited by body donor use in learning and their effects on professional development have been documented in medical students, but are far less explored in veterinary medical counterparts.
S. Regnault, C. Basu, S. Channon
wiley   +1 more source

A Method of Moments Estimator of Tail Dependence in Elliptical Copula Models [PDF]

An elliptical copula model is a distribution function whose copula is that of an elliptical distri- bution. The tail dependence function in such a bivariate model has a parametric representation with two parameters: a tail parameter and a correlation ...
Krajina, A.
core  

Single‐subject designs in character education: Methods for rigorous, contextual, and practitioner‐led research

British Educational Research Journal, EarlyView.
Abstract Character education research is often constrained by blunt methodological tools. Surveys capture breadth without depth; case studies offer richness but lack replicability; and randomised controlled trials (RCTs), though indispensable at the policy level, are costly, disruptive and ill‐suited to everyday practice with individual pupils.
Shane McLoughlin
wiley   +1 more source

Some results on weak and strong tail dependence coefficients for means of copulas [PDF]

Copulas represent the dependence structure of multivariate distributions in a natural way. In order to generate new copulas from given ones, several proposals found its way into statistical literature.
Fischer, Matthias J., Klein, Ingo
core