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Новости за 28.12.2022

Association of dietary magnesium intake and glycohemoglobin with mortality risk in diabetic patients

Plos.org 

by Hung-Wei Wang, Yun-Ting Huang, Ming-Yan Jiang

Background

Dietary magnesium intake inversely correlated to risk of death in general population. However, it is relatively unknown whether the beneficial effect remains significant in individuals with diabetes. Our study purpose is to evaluate the association of dietary magnesium intake with mortality risk in diabetic population.

Methods

The study population is recruited from 2003–2014 National Health and Nutrition Examination Survey... Читать дальше...

Does oil price uncertainty matter in stock market volatility forecasting?

Plos.org 

by Peng Qin, Manying Bai

We analyze whether oil price uncertainty and U.S. stock uncertainty can simultaneously provide additional information to volatility forecast of six major stock indexes. For model settings, we find not only the uncertainty information of previous day, but that of previous week and month will also provide incremental predictive power for the stock market volatility. Based on that, from in-sample and out-of-sample perspective, the empirical evidences imply separately... Читать дальше...

Catalyzing social change: Does concentration encourage action?

Plos.org 

by Jonah Berger, Joshua Conrad Jackson, Ceren Kolsarici

Countless social problems demand solutions, from climate change and gun control to poverty and systemic racism. But while some of these problems inspire action (e.g., “Black Lives Matter” and “Me Too” movements), most fail to gain traction or inspire new policy. Why do some problems garner more attention and response? We suggest that the relative timing of related events may play an important role. Specifically, action may be more likely... Читать дальше...



Contributions of human amygdala nuclei to resting-state networks

Plos.org 

by Uriel K. A. Elvira, Sara Seoane, Joost Janssen, Niels Janssen

The amygdala is a brain region with a complex internal structure that is associated with psychiatric disease. Methodological limitations have complicated the study of the internal structure of the amygdala in humans. In the current study we examined the functional connectivity between nine amygdaloid nuclei and existing resting-state networks using a high spatial-resolution fMRI dataset. Using data-driven analysis techniques... Читать дальше...

Research on parameter identification of shaking table systems based on the RLS method

Plos.org 

by Chunhua Gao, Yanping Yang, Mengyuan Qin, Cun Li, Zihan Yuan

It is difficult to accurately establish a model of the real mesa system. Furthermore, a model of a seismic simulation vibration table array system is critical to increasing the accuracy of seismic testing in laboratory settings. Herein a model of the nine subarray shaking table system is identified by recursive extension of the least square method, which is used to accurately identify the structure parameters by simulation of... Читать дальше...

Objective assessment of tapering of the fingers in adults

Plos.org 

by Seth M. Weinberg

Mild proximal-to-distal tapering of the fingers is a relatively common trait in humans. When more extreme, finger tapering is a feature observed in many genetic syndromes. The range of variation for finger tapering in the general population is not well understood, and sex differences in the degree of tapering, while suspected, have not been documented. Part of the difficulty is a lack of objective methods to evaluate finger tapering. In the present report, we developed... Читать дальше...

Value-added scores show limited stability over time in primary school

Plos.org 

by Valentin Emslander, Jessica Levy, Ronny Scherer, Antoine Fischbach

Value-added (VA) models are used for accountability purposes and quantify the value a teacher or a school adds to their students’ achievement. If VA scores lack stability over time and vary across outcome domains (e.g., mathematics and language learning), their use for high-stakes decision making is in question and could have detrimental real-life implications: teachers could lose their jobs, or a school might receive less funding. Читать дальше...

Clinicians’ views of factors influencing decision-making for CS for first-time mothers—A qualitative descriptive study

Plos.org 

by Sunita Panda, Cecily Begley, Deirdre Daly

Clinicians’ perspectives of the reasons for performing caesarean section (CS) are fundamental to deepening knowledge and understanding of factors influencing decision-making for CS. The aim of this study was to explore midwives’ and obstetricians’ views of factors influencing decision-making for CS for first-time mothers. A qualitative descriptive study with semi-structured one-to-one audio-recorded interviews was used to gather data from clinicians (15 midwives and 20 senior obstetricians). Читать дальше...

Statistical approaches to identifying significant differences in predictive performance between machine learning and classical statistical models for survival data

Plos.org 

by Justine B. Nasejje, Albert Whata, Charles Chimedza

Research that seeks to compare two predictive models requires a thorough statistical approach to draw valid inferences about comparisons between the performance of the two models. Researchers present estimates of model performance with little evidence on whether they reflect true differences in model performance. In this study, we apply two statistical tests, that is, the 5 × 2-fold cv paired t-test, and the combined 5 × 2-fold cv F-test... Читать дальше...

Linking environmental management accounting to green organisational behaviour: The mediating role of green human resource management

Plos.org 

by Liping Liu, Chunyu Zhang

The China’s economy is developing rapidly, and it affects the environment on several levels. Therefore, this study examines the effect of environmental management accounting, green human resource management (HRM), on green organisational behaviour (OB). We collected 383 questionnaires completed by human resource managers and accounting managers in the Chinese hospitality industry. We used a covariance-based structural equation model to test the hypotheses in this study. Читать дальше...





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