Results 231 to 240 of about 138,461 (306)

Genetic admixture in Brazil

American Journal of Medical Genetics Part C: Seminars in Medical Genetics, 2020
AbstractWe review studies from our laboratories using different molecular tools to characterize the Amerindian, European and African ancestry of Brazilians. Initially we used uniparental DNA markers to investigate the contribution of distinct Y chromosome and mitochondrial DNA lineages to present‐day populations.
Sergio D. J. Pena, Fabrício R. Santos, Eduardo Tarazona‐Santos   +2 more
openaire   +3 more sources

Ancient Admixture in Human History

Genetics, 2012
Population mixture is an important process in biology. We present a suite of methods for learning about population mixtures, implemented in a software package called ADMIXTOOLS, that support formal tests for whether mixture occurred and make it possible ...
Priya Moorjani, Swapan Mallick, David Reich   +2 more
exaly   +2 more sources

Analysis of Human Sequence Data Reveals Two Pulses of Archaic Denisovan Admixture

Cell, 2018
Summary Anatomically modern humans interbred with Neanderthals and with a related archaic population known as Denisovans. Genomes of several Neanderthals and one Denisovan have been sequenced, and these reference genomes have been used to detect ...
Brian Browning, Sharon Browning, Serena Tucci   +2 more
exaly   +2 more sources

Testing for Ancient Admixture between Closely Related Populations

Molecular Biology and Evolution, 2011
David Reich, Nick Patterson, Montgomery Slatkin   +2 more
exaly   +2 more sources

Ancient DNA indicates human population shifts and admixture in northern and southern China

Science, 2020
A genetic history of China The history of human movements into and within China has been difficult to determine solely from archaeological investigations or genetic studies of contemporary peoples. Yang et al.
Melinda A. Yang, Xue-chun Fan, Bo Sun, Chung-yu Chen, Jianfeng Lang, Y. Ko, C. Tsang, Hunglin Chiu, Tianyi Wang, Qingchuan Bao, Xiaohong Wu, M. Hajdinjak, A. Ko, Manyu Ding, Peng Cao, Ruowei Yang, Feng Liu, B. Nickel, Q. Dai, Xiaotian Feng, Lizhao Zhang, Chengkai Sun, Chao Ning, Wen Zeng, Yongsheng Zhao, Ming Zhang, Xing Gao, Yinqiu Cui, D. Reich, M. Stoneking, Qiaomei Fu   +30 more
semanticscholar   +1 more source

Influence of magnesium slag as a mineral admixture on the performance of concrete

, 2021
Magnesium slag is a byproduct of the magnesium industry. It has not been commonly used in the construction industry due to the poor hydration reactivity and soundness risk induced by a high content of MgO.
Guangxiang Ji, Xiaoqin Peng, Shupin Wang, Can Hu, Peng Ran, Sun Keke, Lu Zeng   +6 more
semanticscholar   +1 more source

Genetic Adaptation and Neandertal Admixture Shaped the Immune System of Human Populations

Cell, 2016
Summary Humans differ in the outcome that follows exposure to life-threatening pathogens, yet the extent of population differences in immune responses and their genetic and evolutionary determinants remain undefined.
Geert Leroux-Roels, Matthew Albert, Nadia Naffakh   +2 more
exaly   +2 more sources

Applying f4‐statistics and admixture graphs: Theory and examples

Molecular Ecology Resources, 2020
A popular approach to learning about admixture from population genetic data is by computing the allele‐sharing summary statistics known as f‐statistics. Compared to some methods in population genetics, f‐statistics are relatively simple, but interpreting
Mark Lipson
exaly   +2 more sources

Rheological and mechanical properties of cemented foam backfill: Effect of mineral admixture type and dosage

Cement & Concrete Composites, 2020
In this work, the effect of mineral admixture type and dosage on the rheological and mechanical behaviors of a newly developed backfilling material, cemented foam backfill (CFB), is comprehensively investigated.
Shiyu Zhang, Lei Yang, F. Ren, Jingping Qiu, Hangxing Ding   +4 more
semanticscholar   +1 more source