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Alejandro Ochoa

As seen in: Medium, El País, HuffPost, COPE, El Sol de México, Dialnet - Universidad de La Rioja, eLife, El Heraldo de Chihuahua, El Sol de Cuernavaca, El Sol de Zacatecas and
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Articles

Dinámica de la estructura y composición de la comunidad de aves acuáticas de Ensenada del Jato, Cayo Sabinal, Cuba

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By Alejandro Ochoa, Raul Gomez, Lamarté Sablón, Eleandro Jairo
| Dialnet - Universidad de La Rioja
Ayuda Buscar en la ayuda Buscar en la ayuda Dinámica de la estructura y composición de la comunidad de aves acuáticas de Ensenada del Jato, Cayo Sabinal, Cuba Autores: Eleandro Jairo Lamarté Sablón, Alejandro Rodríguez Ochoa, Raúl González Gómez Localización: Huitzil: Revista Mexicana de Ornitología, ISSN 1870-7459, Vol. 19, Nº. 1, 2018, págs.
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Kinship estimation bias carries over to heritability estimation bias using variance components

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By Zhuoran Hou, Alejandro Ochoa
| biorxiv.org
Abstract Heritability is a fundamental parameter of diseases and other traits, quantifying the contribution of genetics to that trait. Kinship matrices, also known as Genetic Relatedness Matrices or "GRMs", are required for heritability estimation with variance components models. However, the most common "standard" kinship estimator employed by GCTA and other approaches, can be severely biased in structured populations.
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Genetic association meta-analysis is susceptible to confounding by between-study cryptic relatedness

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By Alejandro Ochoa
| biorxiv.org
Abstract Meta-analysis of Genome-Wide Association Studies (GWAS) has important advantages, but it assumes that studies are independent, which does not hold when there is relatedness between studies. As a motivating example, recent work suggested applying sex-stratified meta-analysis to correct for participation bias, without considering that men and women from the same population will be highly related.
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