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Новости за 13.05.2024

Bond performance between hybrid fiber-reinforced concrete and BFRP bars under freeze-thaw cycle

Plos.org 

by Yanming Su

This study applied the pull-out test to examine the influence of freeze-thaw cycles and hybrid fiber incorporation on the bond performance between BFRP bars and hybrid fiber-reinforced concrete. The bond-slip curves were fitted by the existing bond-slip constitutive model, and then the bond strength was predicted by a BP neural network. The results indicated that the failure mode changed from pull-out to splitting for the BFRP bar ordinary concrete specimens when the freeze-thaw cycles exceeded 50... Читать дальше...

Association between executive functions and COMT Val108/158Met polymorphism among healthy younger and older adults: A preliminary study

Plos.org 

by Zoltan Apa, Jessica Gilsoul, Vinciane Dideberg, Fabienne Collette

Background and objectives

Genetic variability in the dopaminergic system could contribute to age-related impairments in executive control. In this study, we examined whether genetic polymorphism for catechol-O-methyltransferase (COMT Val158Met) is related to performance on updating, shifting and inhibition tasks.

Methods

We administered a battery of executive tasks assessing updating, shifting and inhibition functions... Читать дальше...

Mindfulness meditation use in Britain during the COVID-19 pandemic

Plos.org 

by Otto Simonsson, Stephen D. Fisher

Objectives

The objectives of this study were to examine the prevalence and associations of mindfulness meditation use and also its perceived mental health effects during the COVID-19 pandemic.

Methods

Using repeated cross-sectional data from broad online samples weighted to be representative of the adult population in Britain, we estimated the prevalence of mindfulness meditation use and employed logistic regression models to investigate sociodemographic... Читать дальше...



Living the employer brand during a crisis? A qualitative study on internal employer branding in times of the COVID-19 pandemic

Plos.org 

by Marthe Rys, Eveline Schollaert, Greet Van Hoye

Employer branding has emerged as a strategic imperative in the quest for talent. However, existing research has predominantly explored stable periods, overlooking the possible transformative impact of crises and the crucial role that HR managers play in crafting internal employer branding strategies. As such, this research addresses this by scrutinizing internal employer branding during the COVID-19 pandemic. Conducting in-depth interviews with 37 Belgian HR managers... Читать дальше...

Determinants of low birth weight among newborns delivered in public hospitals of North Shewa Zone, Amhara region, Ethiopia: A case-control study (2023)

Plos.org 

by Beniyas Minda, Girma Bekele, Solomon Hailemeskel, Abera Lambebo

Background

Low birth weight (LBW), defined as a birth weight less than 2500 g, irrespective of gestational age, poses a significant health concern for newborns. Despite efforts, the incidence of LBW in sub-Saharan Africa has remained stagnant over the past decade, warranting attention from healthcare providers, policymakers, and researchers.

Objective

This study aimed to identify factors associated with LBW among... Читать дальше...

Advancing 100m sprint performance prediction: A machine learning approach to velocity curve modeling and performance correlation

Plos.org 

by Chung Kit Tam, Zai-Fu Yao

This study presents a novel approach to modeling the velocity-time curve in 100m sprinting by integrating machine learning algorithms. It critically addresses the limitations of traditional speed models, which often require extensive and intricate data collection, by proposing a more accessible and accurate method using fewer variables. The research utilized data from various international track events from 1987 to 2019. Two machine learning models, Random Forest (RF) and Neural Network (NN)... Читать дальше...

Effects of elastic band resistance training on the physical and mental health of elderly individuals: A mixed methods systematic review

Plos.org 

by Aiying Li, Yan Sun, Meng Li, Dongyang Wang, Xiaofeng Ma

Objectives

Elastic band resistance training in elderly individuals can improve physical fitness and promote mental health in addition to other benefits. This systematic review aimed to review, summarize, and evaluate quantitative, qualitative, and mixed methodological studies on the use of elastic band resistance training in elderly individuals, and to investigate the influence of elastic band resistance training on the physical and mental health of elderly individuals... Читать дальше...

The resolution of face perception varies systematically across the visual field

Plos.org 

by Anisa Y. Morsi, Valérie Goffaux, John A. Greenwood

Visual abilities tend to vary predictably across the visual field–for simple low-level stimuli, visibility is better along the horizontal vs. vertical meridian and in the lower vs. upper visual field. In contrast, face perception abilities have been reported to show either distinct or entirely idiosyncratic patterns of variation in peripheral vision, suggesting a dissociation between the spatial properties of low- and higher-level vision. Читать дальше...

Nutritional status of primary school children and their caregiver’s knowledge on malnutrition in rural and urban communities of Ekiti State, Southwest Nigeria

Plos.org 

by Taofeek Adedayo Sanni, Olusegun Elijah Elegbede, Kayode Rasak Adewoye, Kabir Adekunle Durowade, Tope Michael Ipinnimo, Ayodele Kamal Alabi, John Olujide Ojo, Richard Dele Agbana, Mustapha Muhammad Raji, Oluseyi Adedeji Aderinwale, Mojoyinola Oyindamola Adeosun, Ademuyiwa Adetona, Opeyemi Oladipupo Abioye, Olumide Temitope Asake, Olanrewaju Kassim Olasehinde, Olawale Bashir-ud-deen Oni

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Москва

Совладелец «ТЕХНОНИКОЛЬ» Игорь Рыбаков запустил на Дальнем Востоке бизнес-клуб «Эквиум»


A study protocol to characterise pathophysiological and molecular markers of rheumatic heart disease and degenerative aortic stenosis using multiparametric cardiovascular imaging and multiomics techniques

Plos.org 

by Daniel W. Mutithu, Olukayode O. Aremu, Dipolelo Mokaila, Tasnim Bana, Mary Familusi, Laura Taylor, Lorna J. Martin, Laura J. Heathfield, Jennifer A. Kirwan, Lubbe Wiesner, Henry A. Adeola, Evelyn N. Lumngwena, Rodgers Manganyi, Sebastian Skatulla, Richard Naidoo, Ntobeko A. B. Ntusi

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Driving force of value reversal in Chinese overleveraged firms: The mechanism and path of private placement

Plos.org 

by Xin Song, Xiaodi Liu, Huiyu Chen

To stimulate economic growth, China has launched multiple economic stimulus plans in recent years, intensifying corporate debt financing and subsequently elevating the leverage levels. Addressing and effectively reducing the leverage levels of our country’s enterprises has emerged as a pressing issue in the trajectory of our economic development. This paper primarily investigates the drivers, pathways, and mechanisms for reversing the over-leveraged values of enterprises. Читать дальше...

Systematic evaluation of integration between China’s digital economy and sports industry: Two-stage grey relational analysis and vector autoregressive model

Plos.org 

by Xu Sun, Lide Su, Bo Zhou, Te Bu, Yang Zhang

Objectives

The development of the digital economy constitutes a key component of China’s endeavors to advance towards “Digital China.” The sports industry functions as a new catalyst for high-quality economic growth. This study systematically evaluated the integration between these two sectors.

Methods

First, we conducted two levels of grey relational analysis to assess their integration between 2016 and 2021. Second, we conducted a... Читать дальше...


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Уимблдон

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