Results 81 to 90 of about 2,687,568 (346)

Geometric and dosimetric evaluation of a commercial AI auto‐contouring tool on multiple anatomical sites in CT scans

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Current radiotherapy practices rely on manual contouring of CT scans, which is time‐consuming, prone to variability, and requires highly trained experts. There is a need for more efficient and consistent contouring methods. This study evaluated the performance of the Varian Ethos AI auto‐contouring tool to assess its potential integration into
Robert N. Finnegan   +6 more
wiley   +1 more source

Inferring Species Trees from Incongruent Multi-Copy Gene Trees Using the Robinson-Foulds Distance [PDF]

open access: yes, 2012
We present a new method for inferring species trees from multi-copy gene trees. Our method is based on a generalization of the Robinson-Foulds (RF) distance to multi-labeled trees (mul-trees), i.e., gene trees in which multiple leaves can have the same ...
Burleigh, J. Gordon   +2 more
core   +2 more sources

Interlude At Dawn [PDF]

open access: yes, 2015
Joey, Minnie Wilson\u27s little black rooster, ended his raucous greeting to the new day and began to strut proudly about the back yard, pausing only to preen the glossy feathers of his neck or to peck at some nearly invisible object on the ...
Trees, Rex Van
core   +1 more source

Recursive queries on trees and data trees [PDF]

open access: yesProceedings of the 16th International Conference on Database Theory, 2013
The analysis of datalog programs over relational structures has been studied in depth, most notably the problem of con- tainment. The analysis problems that have been considered were shown to be undecidable with the exception of (i) con- tainment of arbitrary programs in nonrecursive ones, (ii) containment of monadic programs, and (iii) emptiness.
Abiteboul, Serge   +3 more
openaire   +6 more sources

Using deep learning generated CBCT contours for online dose assessment of prostate SABR treatments

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Prostate Stereotactic Ablative Body Radiotherapy (SABR) is an ultra‐hypofractionated treatment where small setup errors can lead to higher doses to organs at risk (OARs). Although bowel and bladder preparation protocols reduce inter‐fraction variability, inconsistent patient adherence still results in OAR variability.
Conor Sinclair Smith   +8 more
wiley   +1 more source

Representations of infinite tree-sets [PDF]

open access: yesarXiv, 2019
Tree sets are abstract structures that can be used to model various tree-shaped objects in combinatorics. Finite tree sets can be represented by finite graph-theoretical trees. We extend this representation theory to infinite tree sets. First we characterise those tree sets that can be represented by tree sets arising from infinite trees; these are ...
arxiv  

A Novel CHMP2B Splicing Variant in Atypical Presentation of Familial Frontotemporal Lobar Degeneration

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT C‐truncating variants in the charged multivesicular body protein 2B (CHMP2B) gene are a rare cause of frontotemporal lobar degeneration (FTLD), previously identified only in Denmark, Belgium, and China. We report a novel CHMP2B splice‐site variant (c.35‐1G>A) associated with familial FTLD in Spain. The cases were two monozygotic male twins who
Sara Rubio‐Guerra   +17 more
wiley   +1 more source

Seed germination ecology of endangered plant Horsfieldia hainanensis Merr. In China

open access: yesBMC Plant Biology
Background Horsfieldia hainanensis Merr., an indicator species of China’s humid tropical rainforests, is endangered due to difficulties with population regeneration.
Xiongsheng Liu   +7 more
doaj   +1 more source

Properties of Consensus Methods for Inferring Species Trees from Gene Trees [PDF]

open access: yesarXiv, 2008
Consensus methods provide a useful strategy for combining information from a collection of gene trees. An important application of consensus methods is to combine gene trees to estimate a species tree. To investigate the theoretical properties of consensus trees that would be obtained from large numbers of loci evolving according to a basic ...
arxiv  

Interactive Vegetation Rendering with Slicing and Blending [PDF]

open access: yes, 2000
Detailed and interactive 3D rendering of vegetation is one of the challenges of traditional polygon-oriented computer graphics, due to large geometric complexity even of simple plants.
Jakulin, Aleks
core   +1 more source

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