Results 11 to 20 of about 175,320 (183)

Massively parallel computation of globally optimal shortest paths with curvature penalization

open access: yesConcurrency and Computation: Practice and Experience, Volume 35, Issue 2, 25 January 2023., 2023
Abstract We address the computation of paths globally minimizing an energy involving their curvature, with given endpoints and tangents at these endpoints, according to models known as the Reeds‐Shepp car (reversible and forward variants), the Euler‐Mumford elasticae, and the Dubins car. For that purpose, we numerically solve degenerate variants of the
Jean‐Marie Mirebeau   +4 more
wiley   +1 more source

Identification of compounds from chufa (Eleocharis dulcis) peels by widely targeted metabolomics

open access: yesFood Science &Nutrition, Volume 11, Issue 1, Page 545-554, January 2023., 2023
The big Chinese water chestnut (BCWC) and small Chinese water chestnut (SCWC) peels using ultraperformance liquid chromatography/mass spectrometry (UPLC/MS)‐based metabolomics analysis. A total of 321 significant metabolites, including 90 flavonoids, 25 phenylpropanoids, and 33 organic acids and derivatives, were identified/annotated from BCWC and SCWC.
Guanli Li   +4 more
wiley   +1 more source

Prediction of the information processing speed performance in multiple sclerosis using a machine learning approach in a large multicenter magnetic resonance imaging data set

open access: yesHuman Brain Mapping, Volume 44, Issue 1, Page 186-202, January 2023., 2023
We developed an advanced machine learning pipeline to identify brain structural magnetic resonance imaging (MRI) volumes that, along with demographic and clinical data, predict information processing speed (IPS) performance, assessed with the Symbol Digit Modalities Test (SDMT), of patients with multiple sclerosis (MS).
Chiara Marzi   +14 more
wiley   +1 more source

Destabilization of mutated human PUS3 protein causes intellectual disability

open access: yesHuman Mutation, Volume 43, Issue 12, Page 2063-2078, December 2022., 2022
The homodimer of pseudouridine synthase 3 converts uridines at position 39 in tRNAs to pseudouridine (ψ), which affects tRNA stability and regulates RNA–protein interactions. Several patient‐derived variants of PUS3 have been associated with neurodegenerative diseases.
Ting‐Yu Lin   +17 more
wiley   +1 more source

White matter microstructure and longitudinal relaxation time anisotropy in human brain at 3 and 7 T

open access: yesNMR in Biomedicine, Volume 36, Issue 1, January 2023., 2023
White matter (WM) with high structural anisotropy T1 shows angular dependency on B0. At 3T, a T1 peak at 54° and flat baseline across 0° and 90° are observed in WM [Panel A, T1 as a function of fibre‐to‐filed angle (q)]. At 7T, the T1 peak is centred at 40°.
Risto A. Kauppinen   +4 more
wiley   +1 more source

Enrichment of hepatic glycogen and plasma glucose from H₂18O informs gluconeogenic and indirect pathway fluxes in naturally feeding mice

open access: yesNMR in Biomedicine, Volume 36, Issue 2, February 2023., 2023
18O‐enrichment of liver glycogen, triglyceride glycerol, and blood glucose of mice given 18O‐water during overnight feeding was quantified by 13C NMR and MS. Glycogen 18O‐enrichment of oxygens 3, 5, and 6 from isotope‐shifted 13C signals informed indirect pathway contributions from different sources.
Margarida Coelho   +11 more
wiley   +1 more source

Multi-level Turbo Decoding Assisted Soft Combining Aided Hybrid ARQ [PDF]

open access: yes, 2010
Hybrid Automatic Repeat reQuest (ARQ) plays an essential role in error control. Combining the incorrectly received packet replicas in hybrid ARQ has been shown to reduce the resultant error probability, while improving the achievable throughput.
Chen, Hong   +2 more
core   +1 more source

Ceramic‐hydrogel composite as carrier for cold‐plasma reactive‐species: Safety and osteogenic capacity in vivo

open access: yesPlasma Processes and Polymers, Volume 20, Issue 1, January 2023., 2023
In this study, a novel composite based on calcium phosphate ceramic and the plasma‐treated hydrogel is developed. With such a combination it is possible to supplement the excellent bone regenerative properties of calcium phosphates bone grafts with an anticancer agent, that is, the plasma‐treated hydrogel. While being selective toward OS cells in vitro,
Xavi Solé‐Martí   +6 more
wiley   +1 more source

Precoded turbo code within 0.1dB of Shannon limit [PDF]

open access: yes, 2011
The application of the precoding technique to turbo codes is investigated, resulting in a new class of turbo-like codes named precoded turbo codes. The introduction of a precoder provides a degree of freedom for code optimisation.
Bai, B, Tong, S, Zheng, H
core   +3 more sources

On the Performance of Turbo Codes in Quasi-Static Fading Channels [PDF]

open access: yes, 2005
In this paper, we investigate in detail the performance of turbo codes in quasi-static fading channels both with and without antenna diversity. First, we develop a simple and accurate analytic technique to evaluate the performance of turbo codes in quasi-static fading channels.
arxiv   +1 more source

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