Results 21 to 30 of about 6,810 (206)

A New Fractional Order Hold and Its Capability in Frequency Response and Zero Placement

open access: yesJournal of Applied Mathematics, 2013
This paper introduces a new holder with application on digital control systems. This holder is a combination of fractional order hold (FROH) and zero-order hold (ZOH) that has the capability of both holders and a frequency response better than both of ...
Farzad Hashemzadeh   +2 more
doaj   +1 more source

Genomic inbreeding estimation in small populations: evaluation of runs of homozygosity in three local dairy cattle breeds

open access: yesAnimal, 2016
In the local breeds with small population size, one of the most important problems is the increase of inbreeding coefficient (F). High levels of inbreeding lead to reduced genetic diversity and inbreeding depression.
S. Mastrangelo   +5 more
doaj   +1 more source

Evaluation of runs of homozygosity and genomic inbreeding in Holstein cattle from Colombia

open access: yesSemina: Ciências Agrárias, 2020
Traditional selection programs for dairy cattle, based on quantitative principles, have worked well and allowed strong selection processes in the world over many decades.
Maria Fernanda Betancur Zambrano   +4 more
doaj   +1 more source

Conservation Genomic Analysis of the Croatian Indigenous Black Slavonian and Turopolje Pig Breeds

open access: yesFrontiers in Genetics, 2020
The majority of the nearly 400 existing local pig breeds are adapted to specific environments and human needs. The demand for large production quantities and the industrialized pig production have caused a rapid decline of many local pig breeds in recent
Boris Lukić   +8 more
doaj   +1 more source

Water-rich C-type asteroids as early solar system carbonate factories [PDF]

open access: yes, 2023
Micrometeorites represent a major potential source of volatiles for the early Earth, although often overlooked due to their small sizes and the effects of atmospheric entry.
Williams, Lynda B.   +13 more
core   +1 more source

Timing and Extent of Inbreeding in African Goats

open access: yesFrontiers in Genetics, 2019
Genetic characterization of African goats is one of the current priorities in the improvement of goats in the continent. This study contributes to the characterization effort by determining the levels and number of generations to common ancestors (“age”)
Wilson Nandolo   +17 more
doaj   +1 more source

Genome-Wide Association Studies, Runs of Homozygosity Analysis, and Copy Number Variation Detection to Identify Reproduction-Related Genes in Bama Xiang Pigs

open access: yesFrontiers in Veterinary Science, 2022
Litter size and teat number are economically important traits in the porcine industry. However, the genetic mechanisms influencing these traits remain unknown. In this study, we analyzed the genetic basis of litter size and teat number in Bama Xiang pigs
Jiayuan Mo   +10 more
doaj   +1 more source

Genome-wide landscape of runs of homozygosity and differentiation across Egyptian goat breeds

open access: yesBMC Genomics, 2023
Understanding the genomic features of livestock is essential for successful breeding programs and conservation. This information is scarce for local goat breeds in Egypt.
Ahmed M. Sallam   +6 more
doaj   +1 more source

Culture and subjective well-being: Culture influences the ingredients of a good life and conceptualizations of happiness

open access: yes, 2012
Edited by Jeffrey J.
Derrick Wirtz   +5 more
core   +1 more source

Museomics Deciphers the Phylogeographic Differentiation and Conservation Status of a Montane Pheasant

open access: yesIntegrative Zoology, EarlyView.
Museum specimens provide a rich source of historical DNA, enabling insights into phylogenetic relationships and demographic history of the endangered Koklass Pheasant. Our findings uncovered a previously unrecognized population in Guizhou province and highlighted elevated extinction risk in populations from Anhui province and Southern China, informing ...
Zhiyong Jiang   +9 more
wiley   +1 more source

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