Results 21 to 30 of about 13,467,690 (274)

Ancestral Instrument Method for Causal Inference without Complete Knowledge

open access: yesProceedings of the Thirty-First International Joint Conference on Artificial Intelligence, 2022
Unobserved confounding is the main obstacle to causal effect estimation from observational data. Instrumental variables (IVs) are widely used for causal effect estimation when there exist latent confounders. With the standard IV method, when a given IV is valid, unbiased estimation can be obtained, but the validity requirement on a standard IV is ...
Debo Cheng   +5 more
openaire   +3 more sources

Understanding phenotypical character evolution in parmelioid lichenized fungi (Parmeliaceae, Ascomycota). [PDF]

open access: yesPLoS ONE, 2013
Parmelioid lichens form a species-rich group of predominantly foliose and fruticose lichenized fungi encompassing a broad range of morphological and chemical diversity.
Pradeep K Divakar   +4 more
doaj   +1 more source

Distinguishing Among Evolutionary Forces Acting on Genome-Wide Base Composition: Computer Simulation Analysis of Approximate Methods for Inferring Site Frequency Spectra of Derived Mutations

open access: yesG3: Genes, Genomes, Genetics, 2018
Inferred ancestral nucleotide states are increasingly employed in analyses of within- and between -species genome variation. Although numerous studies have focused on ancestral inference among distantly related lineages, approaches to infer ancestral ...
Tomotaka Matsumoto, Hiroshi Akashi
doaj   +1 more source

Use of Isotope Ratio Determination (13C/12C) to Assess the Production Method of Sparkling Wine

open access: yesCHIMIA, 2016
The production of a sparkling wine can be performed with different methods taking from a few weeks to several years, which often justifies a difference in added value for the consumer.
Joël S. Rossier   +3 more
doaj   +1 more source

Ancestral inference and the study of codon bias evolution: implications for molecular evolutionary analyses of the Drosophila melanogaster subgroup. [PDF]

open access: yesPLoS ONE, 2007
Reliable inference of ancestral sequences can be critical to identifying both patterns and causes of molecular evolution. Robustness of ancestral inference is often assumed among closely related species, but tests of this assumption have been limited ...
Hiroshi Akashi, Piyush Goel, Anoop John
doaj   +1 more source

Identifying Climatic Drivers of Hybridization with a New Ancestral Niche Reconstruction Method

open access: yesSystematic Biology, 2023
Abstract Applications of molecular phylogenetic approaches have uncovered evidence of hybridization across numerous clades of life, yet the environmental factors responsible for driving opportunities for hybridization remain obscure. Verbal models implicating geographic range shifts that brought species together during the Pleistocene
Ryan A Folk   +9 more
openaire   +2 more sources

Structures of hyperstable ancestral haloalkane dehalogenases show restricted conformational dynamics

open access: yesComputational and Structural Biotechnology Journal, 2020
Ancestral sequence reconstruction is a powerful method for inferring ancestors of modern enzymes and for studying structure–function relationships of enzymes.
Petra Babkova   +5 more
doaj   +1 more source

A methodological framework for the reconstruction of contiguous regions of ancestral genomes and its application to mammalian genomes.

open access: yesPLoS Computational Biology, 2008
The reconstruction of ancestral genome architectures and gene orders from homologies between extant species is a long-standing problem, considered by both cytogeneticists and bioinformaticians. A comparison of the two approaches was recently investigated
Cedric Chauve, Eric Tannier
doaj   +1 more source

Collective dynamics differentiates functional divergence in protein evolution. [PDF]

open access: yesPLoS Computational Biology, 2012
Protein evolution is most commonly studied by analyzing related protein sequences and generating ancestral sequences through Bayesian and Maximum Likelihood methods, and/or by resurrecting ancestral proteins in the lab and performing ligand binding ...
Tyler J Glembo   +4 more
doaj   +1 more source

Zoo-FISH in the European mole (Talpa europaea) detects all ancestral Boreo-Eutherian human homologous chromosome associations [PDF]

open access: yes, 2006
Zoo-FISH with human whole-chromosome paint probes delineated syntenic association of human homologous chromosome segments 3-21, 14-15, 16-19, 4-8, 7-16 and 12-22 (twice) in the European mole (Talpa europaea, Talpidae, Eulipotyphla, Mammalia).
Müller, Stefan, Volleth, M.
core   +1 more source

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