Results 41 to 50 of about 19,622 (256)

Algebra for Tree Languages [PDF]

open access: yes, 2009
There are at least as many interesting classes of regular tree languages as there are of regular word languages. However, much less is known about the former ones. In particular, very few effective characterizations of tree language classes are known. Since for words most known characterizations are obtained using algebra, it seems to be a good idea to
openaire   +1 more source

Parsing Unranked Tree Languages, Folded Once

open access: yesAlgorithms
A regular unranked tree folding consists of a regular unranked tree language and a folding operation that merges (i.e., folds) selected nodes of a tree to form a graph; the combination is a formal device for representing graph languages.
Martin Berglund   +2 more
doaj   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

“Language Is the Place from Where the World Is Seen”—On the Gender of Trees, Fruit Trees and Edible Fruits in Portuguese and in Other Latin-Derived Languages

open access: yesLanguages, 2017
Trees have always been important as natural entities carrying a strong symbolic and metaphorical weight, not to mention their practical uses. Therefore, words and their gender, used to name natural entities as important as trees and particularly fruit ...
Luís Silva Dias, Alexandra Soveral Dias
doaj   +1 more source

Longitudinal genome‐wide aneuploidy measurements in circulating cell‐free DNA to predict lack of benefit from pembrolizumab in patients with metastatic urothelial cancer

open access: yesMolecular Oncology, EarlyView.
Many patients with urothelial cancer do not benefit from treatment with pembrolizumab, while at risk of severe side effects. Changes in the levels of circulating tumor DNA early during treatment, measured by a simple and affordable assay that can be easily implemented in the clinic, can be used as a prognostic tool to identify these patients.
Youssra Salhi   +14 more
wiley   +1 more source

A representation of trees by languages I

open access: yesTheoretical Computer Science, 1978
AbstractWe apply certain technical results, published in the first part of the present work to obtain reductions between equivalence problems for simple deterministic tree grammars recursive program schemes and the (open) equivalence problem for DPDA's.
openaire   +2 more sources

Trees and Languages with Periodic Signature

open access: yesIndagationes Mathematicae, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Victor Marsault, Jacques Sakarovitch
openaire   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

open access: yesFEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas   +6 more
wiley   +1 more source

Specifications for a tree processing language [PDF]

open access: yesProceedings of the 1965 conference on Computational linguistics -, 1965
Description of trees and strings - both composed of lexical values - matching of trees and strings against partially or totally defined pattern and operations on trees and strings form the essential part of the Processor. The notion of string has been extended to strings embedded in or extracted from trees, and a modified version of the COMIT rewriting
R. Tabory, F. L. Zarnfaller
openaire   +2 more sources

Accurate and noninvasive prostate cancer detection using plasma‐derived extracellular vesicle RNA

open access: yesFEBS Open Bio, EarlyView.
Plasma extracellular vesicles were captured with WGA‐conjugated magnetic beads and profiled for RNA biomarkers. A three‐RNA panel (NM_024955, NR_047469, and NR_002564) distinguished prostate cancer from healthy controls and benign prostatic hyperplasia, supporting a simple, noninvasive approach to improve prostate cancer detection.
Hanping Wei, Haoran Wu, Wei Feng
wiley   +1 more source

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