Results 41 to 50 of about 443,633 (293)

Evolutionary Algorithms for Query Op-timization in Distributed Database Sys-tems: A review

open access: yesAdvances in Distributed Computing and Artificial Intelligence Journal, 2018
Evolutionary Algorithms are bio-inspired optimization problem-solving approaches that exploit principles of biological evolution. , such as natural selection and genetic inheritance.
Zulfiqar ALI   +2 more
doaj   +1 more source

Genetic structure of the polymorphic metrosideros (Myrtaceae) complex in the Hwaiian islands using nuclear microsatellite data. [PDF]

open access: yesPLoS ONE, 2009
BackgroundFive species of Metrosideros (Myrtaceae) are recognized in the Hawaiian Islands, including the widespread M. polymorpha, and are characterized by a multitude of distinctive, yet overlapping, habit, ecological, and morphological forms.
Danica T Harbaugh   +4 more
doaj   +1 more source

Organellar inheritance in the green lineage: insights from Ostreococcus tauri [PDF]

open access: yes, 2013
Along the green lineage (Chlorophyta and Streptophyta), mitochondria and chloroplast are mainly uniparentally transmitted and their evolution is thus clonal. The mode of organellar inheritance in their ancestor is less certain.
Adam Eyre-Walker   +56 more
core   +1 more source

A hierarchical statistical model for estimating population properties of quantitative genes

open access: yesBMC Genetics, 2002
Background Earlier methods for detecting major genes responsible for a quantitative trait rely critically upon a well-structured pedigree in which the segregation pattern of genes exactly follow Mendelian inheritance laws.
Samuel S Wu   +3 more
doaj   +2 more sources

Genetic reanalysis of patients with a difference of sex development carrying the NR5A1/SF-1 variant p.Gly146Ala has discovered other likely disease-causing variations

open access: yesPLoS ONE, 2023
NR5A1/SF-1 (Steroidogenic factor-1) variants may cause mild to severe differences of sex development (DSD) or may be found in healthy carriers. The NR5A1/SF-1 c.437G>C/p.Gly146Ala variant is common in individuals with a DSD and has been suggested to act ...
I. Martínez de Lapiscina   +17 more
semanticscholar   +1 more source

Generalized Hybrid Evolutionary Algorithm Framework with a Mutation Operator Requiring no Adaptation [PDF]

open access: yes, 2017
This paper presents a generalized hybrid evolutionary optimization structure that not only combines both nondeterministic and deterministic algorithms on their individual merits and distinct advantages, but also offers behaviors of the three originating ...
Chan, Lipton   +4 more
core   +1 more source

A statistical model for estimating maternal-zygotic interactions and parent-of-origin effects of QTLs for seed development. [PDF]

open access: yesPLoS ONE, 2008
Proper development of a seed requires coordinated exchanges of signals among the three components that develop side by side in the seed. One of these is the maternal integument that encloses the other two zygotic components, i.e., the diploid embryo and ...
Yanchun Li   +10 more
doaj   +1 more source

Inheritance-Based Diversity Measures for Explicit Convergence Control in Evolutionary Algorithms

open access: yes, 2018
Diversity is an important factor in evolutionary algorithms to prevent premature convergence towards a single local optimum. In order to maintain diversity throughout the process of evolution, various means exist in literature.
Fortin Félix-Antoine   +3 more
core   +1 more source

Chloroplast microsatellites: measures of genetic diversity and the effect of homoplasy [PDF]

open access: yes, 2005
Chloroplast microsatellites have been widely used in population genetic studies of conifers in recent years. However, their haplotype configurations suggest that they could have high levels of homoplasy, thus limiting the power of these molecular markers.
Doyle JJ   +15 more
core   +3 more sources

Computing Individual Risks based on Family History in Genetic Disease in the Presence of Competing Risks [PDF]

open access: yes, 2017
When considering a genetic disease with variable age at onset (ex: diabetes , familial amyloid neuropathy, cancers, etc.), computing the individual risk of the disease based on family history (FH) is of critical interest both for clinicians and patients.
Bouaziz, O, Lefebvre, Antoine, Nuel, G
core   +3 more sources

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