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Background: Compared to the general population, military personnel are at increased risk for insomnia and poor psychological well-being. The present study: (1) compared categories of insomnia severity between cadets of the Swiss Armed Forces (SAF) and previously published norms and (2) investigated the associations between insomnia and psychological well-being related to perceived stress, mental toughness, dark triad traits, and organizational citizenship behavior (OCB).
Methods: A total of 216 cadets of the SAF (mean age: 20.
Phenol-Quinone Redox Couples of Natural Organic Matter Promote Mercury Methylation in Paddy Soil.
Environ Sci Technol
January 2025
National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China.
Methylmercury in paddy soils poses threats to food security and thus human health. Redox-active phenolic and quinone moieties of natural organic matter (NOM) mediate electron transfer between microbes and mercury during mercury reduction. However, their role in mercury methylation remains elusive.
View Article and Find Full Text PDFFocused ion beam (FIB) prepared microtextured microneedle array capable of delivering drugs through punctured skin.
Sci Rep
December 2024
School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China.
Microtextured microneedles are tiny needle-like structures with micron-scale microtextures, and the drugs stored in the microtextures can be released after entering the skin to achieve the effect of precise drug delivery. In this study, the skin substitution model of Ogden's hyperelastic model and the microneedle array and microtexture models with different geometrical parameters were selected to simulate and analyse the flow of the microtexture microneedle arrays penetrating the skin by the finite-element method, and the length of the microneedles was determined to be 200 μm, the width 160 μm, and the value of the gaps was determined to be 420 μm. A four-pronged cone was chosen as the shape of microneedles, and a rectangle was chosen as the shape of the drug-carrying microneedle.
View Article and Find Full Text PDFThe Effect of Dark Chocolate Consumption on Arterial Function in Endurance Male Runners: Prospective Cohort Study.
Sports (Basel)
December 2024
Laboratory of Sports Medicine, Department of Physical Education and Sports Science, Aristotle University of Thessaloniki, 57001 Thermi, Greece.
Foods rich in polyphenols have beneficial effects on health. This study aimed to examine the impact of dark chocolate on endurance runners' arterial function. Forty-six male amateur runners, aged 25-55, participated.
View Article and Find Full Text PDFAerobic exercise timing affects mitochondrial dynamics and insulin resistance by regulating the circadian clock protein expression and NAD-SIRT1-PPARα-MFN2 pathway in the skeletal muscle of high-fat-diet-induced diabetes mice.
J Physiol Biochem
December 2024
Department of Exercise Physiology, Faculty of Sport Sciences, Shahid Rajaee Teacher Training University, Tehran, Iran.
The circadian clock regulates mitochondrial function and affects time-dependent metabolic responses to exercise. The present study aimed to determine the effects of aerobic exercise timing at the light-dark phase on the proteins expression of the circadian clock, mitochondrial dynamics, and, NAD-SIRT1-PPARα axis in skeletal muscle of high-fat diet-induced diabetic mice. In this experimental study, thirty male mice were randomly assigned into two groups based on time: the early light phase, ZT3, and the early dark phase, ZT15, and three groups at each time: (1) Healthy Control (HC), (2) Diabetic Control (DC), and (3) Diabetic + Exercise (DE).
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