منابع مشابه
A Format for Phylogenetic Placements
We have developed a unified format for phylogenetic placements, that is, mappings of environmental sequence data (e.g., short reads) into a phylogenetic tree. We are motivated to do so by the growing number of tools for computing and post-processing phylogenetic placements, and the lack of an established standard for storing them. The format is lightweight, versatile, extensible, and is based o...
متن کاملA general species delimitation method with applications to phylogenetic placements
MOTIVATION Sequence-based methods to delimit species are central to DNA taxonomy, microbial community surveys and DNA metabarcoding studies. Current approaches either rely on simple sequence similarity thresholds (OTU-picking) or on complex and compute-intensive evolutionary models. The OTU-picking methods scale well on large datasets, but the results are highly sensitive to the similarity thre...
متن کاملA Compressed Format for Collections of Phylogenetic Trees and Improved Consensus Performance
Phylogenetic tree searching algorithms often produce thousands of trees which biologists save in Newick format in order to perform further analysis. Unfortunately, Newick is neither space efficient, nor conducive to post-tree analysis such as consensus. We propose a new format for storing phylogenetic trees that significantly reduces storage requirements while continuing to allow the trees to b...
متن کاملm-Level rook placements
Goldman, Joichi, and White proved a beautiful theorem showing that the falling factorial generating function for the rook numbers of a Ferrers board factors over the integers. Briggs and Remmel studied an analogue of rook placements where rows are replaced by sets of m rows called levels. They proved a version of the factorization theorem in that setting, but only for certain Ferrers boards. We...
متن کاملRural placements are effective for teaching medicine in Australia: evaluation of a cohort of students studying in rural placements.
INTRODUCTION Medical education in Australia is increasingly delivered through longitudinal placements in general practice and other community settings. Early meaningful exposure to patients has been shown to improve the transition from medical student to junior doctor. This study examines the experience of the first year cohort of the University of Western Sydney (UWS) Medical School long-term ...
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ژورنال
عنوان ژورنال: PLoS ONE
سال: 2012
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0031009