Results 21 to 30 of about 4,914,786 (311)
The effect of single recombination events on coalescent tree height and shape. [PDF]
PLoS ONE, 2013 The coalescent with recombination is a fundamental model to describe the genealogical history of DNA sequence samples from recombining organisms. Considering recombination as a process which acts along genomes and which creates sequence segments with ...
Luca Ferretti +2 more
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Trees and Meta-Fibonacci Sequences [PDF]
The Electronic Journal of Combinatorics, 2009 For $k>1$ and nonnegative integer parameters $a_p, b_p$, $p = 1..k$, we analyze the solutions to the meta-Fibonacci recursion $C(n)=\sum_{p=1}^k C(n-a_p-C(n-b_p))$, where the parameters $a_p, b_p$, $p = 1..k$ satisfy a specific constraint. For $k=2$ we present compelling empirical evidence that solutions exist only for two particular families of ...
Isgur, Abraham +2 more
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Sequencing the fungal tree of life [PDF]
New Phytologist, 2011 Sequencing the Fungal Tree of Life F. Martin 1 , D. Cullen 2 , D. Hibbett 3 , A. Pisabarro 4 , J. W. Spatafora 5 , S. E. Baker 6,7, I. V. Grigoriev 7 UMR INRA/UHP 1136, Interactions Arbres/Micro-Organismes, INRA-Nancy, 54280 Champenoux, France University of Wisconsin-Madison, Madison, WI, USA Clark University, Worcester, MA, USA Department of Agrarian ...
Martin, Francis +6 more
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Improved representation of sequence Bloom trees [PDF]
Bioinformatics, 2018 AbstractAlgorithmic solutions to index and search biological databases are a fundamental part of bioinformatics, providing underlying components to many end-user tools. Inexpensive next generation sequencing has filled publicly available databases such as the Sequence Read Archive beyond the capacity of traditional indexing methods.
Harris, Robert S., Medvedev, Paul
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An extremal problem for a graphic sequence to have a realization containing every 2-tree with prescribed size [PDF]
Discrete Mathematics & Theoretical Computer Science, 2016 A graph $G$ is a $2$-tree if $G=K_3$, or $G$ has a vertex $v$ of degree 2, whose neighbors are adjacent, and $G-v$ is a 2-tree. Clearly, if $G$ is a 2-tree on $n$ vertices, then $|E(G)|=2n-3$.
De-Yan Zeng, Jian-Hua Yin
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Discussiones Mathematicae Graph Theory, 2022 A branch at a vertex x in a tree is a maximal subtree containing x as an endvertex. The branch-weight of x is the maximum number of edges in any branch at x.
Shang Jen-Ling
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PLoS ONE, 2023 Intrinsically disordered proteins (IDPs) are proteins that lack a stable 3D structure but maintain a biological function. It has been frequently suggested that IDPs are difficult to align because they tend to have fewer conserved residues compared to ...
Andrew C Riley +2 more
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IQ-TREE 2: New Models and Efficient Methods for Phylogenetic Inference in the Genomic Era
bioRxiv, 2019 IQ-TREE (http://www.iqtree.org) is a user-friendly and widely used software package for phylogenetic inference using maximum likelihood. Since the release of version 1 in 2014, we have continuously expanded IQ-TREE to integrate a plethora of new models ...
Bui Quang Minh +6 more
semanticscholar +1 more source
Vessel tree tracking in angiographic sequences [PDF]
Journal of Medical Imaging, 2017 We present a method to track vessels in angiography [contrast filled vessels in two-dimensional (2-D) x-ray fluoroscopy]. Finding correspondence of a vessel tree from consecutive angiogram frames provides significant value in computer-aided clinical applications such as fast vessel tree segmentation, three-dimensional (3-D) vessel topology ...
Dong, Zhang +4 more
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Full sequence analysis and characterization of the South Korean Norovirus GII-4 variant CUK-3
Virology Journal, 2011 Background Many of researchers have focused on the emerging pathogen, Norovirus, since its first identification as the causing agent of nonbacterial acute gastroenteritis in humans.
Ryu Sangryeol +5 more
doaj +1 more source