Results 81 to 90 of about 436,125 (330)

Probing the structure of $X(3872)$ in photoproduction [PDF]

open access: yesNucl.Phys.A 1047(2024)122876
We study the production of $X(3872)$ mesons in photon-induced nuclear reactions near the threshold within the collision model based on the nuclear spectral function. The model accounts for direct photon-nucleon $X(3872)$ production processes as well as five different scenarios for their internal structure.
arxiv   +1 more source

Hydrogen sulfide repairs testicular damage induced by heat stress in rats

open access: yesFEBS Open Bio, EarlyView.
Heat stress can cause testicular damage and affect fertility. We investigated the potential protective role of hydrogen sulfide (H2S) against heat stress‐induced testicular injury and observed that H2S donor NaHS can effectively restore testicular damage in rats by inhibiting inflammation and oxidative stress. Our results suggest that H2S might be used
Xinyu Guo   +6 more
wiley   +1 more source

A temporal network version of Watts's cascade model [PDF]

open access: yesIn: Holme, Saram\"aki, eds., Temporal Networks (Springer, Berlin, 2013), pp. 315-329, 2021
Threshold models of cascades in the social sciences and economics explain the spread of opinion and innovation due to social influence. In threshold cascade models, fads or innovations spread between agents as determined by their interactions with other agents and their personal threshold of resistance.
arxiv  

Simplified discrimination method and systematically threshold setting for pipe inspection using vibration-sensing-actuation device

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing
Water pipes have exceeded their service life, and the number of leakage and burst accidents is increasing. These accidents cause economic losses due to the interruption of operations and supply. However, replacing all the deteriorated pipes is difficult,
Naoko WATANABE, Soichiro TAKATA
doaj   +1 more source

Hedging Errors Induced by Discrete Trading Under an Adaptive Trading Strategy [PDF]

open access: yesarXiv, 2010
Discrete time hedging in a complete diffusion market is considered. The hedge portfolio is rebalanced when the absolute difference between delta of the hedge portfolio and the derivative contract reaches a threshold level. The rate of convergence of the expected squared hedging error as the threshold level approaches zero is analyzed. The results hinge
arxiv  

Contralateral efferent suppression of human hearing sensitivity

open access: yesFrontiers in Systems Neuroscience, 2015
The present study aimed at characterizing the suppressing effect of contralateral medial olivocochlear (MOC) efferents on human auditory sensitivity and mechanical cochlear responses at sound levels near behavioral thresholds.
Enzo eAguilar   +6 more
doaj   +1 more source

Polygenic risk-tailored screening for prostate cancer: A benefit-harm and cost-effectiveness modelling study.

open access: yesPLoS Medicine, 2019
BackgroundThe United States Preventive Services Task Force supports individualised decision-making for prostate-specific antigen (PSA)-based screening in men aged 55-69.
Tom Callender   +7 more
doaj   +1 more source

Absolute convergence and error thresholds in non-active adaptive sampling [PDF]

open access: yesJournal of Computer and System Sciences, 129 (2020) , pp 39-61. ISSN 1090-2724. Elsevier
Non-active adaptive sampling is a way of building machine learning models from a training data base which are supposed to dynamically and automatically derive guaranteed sample size. In this context and regardless of the strategy used in both scheduling and generating of weak predictors, a proposal for calculating absolute convergence and error ...
arxiv   +1 more source

A Weak Selection Stochastic Gradient Matching Pursuit Algorithm

open access: yesSensors, 2019
In the existing stochastic gradient matching pursuit algorithm, the preliminary atomic set includes atoms that do not fully match the original signal. This weakens the reconstruction capability and increases the computational complexity.
Liquan Zhao, Yunfeng Hu, Yanfei Jia
doaj   +1 more source

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