Effects of Elastic Band Resistance Exercise on Depression, Stress, and Autonomic Balance when Applied to the Elderly for 12 Weeks: Randomized Controlled Trial (RCT)

This study is to determine how a resistance exercise program with an elastic band affects the elderly. Elderly subjects were studied for 12 weeks to determine the program’s effect on depression, stress, and autonomic balance. Methods: There were 30 subjects in the experimental group and 31 subjects in the control group. The experimental group participated in resistance exercise three times a week (Monday, Wednesday, and Friday) for 12 weeks, and the control group did not participate in resistance exercise for 12 weeks. Results: There was no significant difference between the two groups regarding the general characteristics and homogeneity of the dependent variable. There were significant differences in depression and stress, and parasympathetic activity was partially significant but sympathetic activity was not. Conclusion: The resistance exercise program using an elastic band gradually reduced depression and stress over time and helped recover the autonomic nervous system. Therefore, for the elderly, resistance exercise using an elastic band is recommended to reduce depression and stress. We propose a follow-up study to measure the improvement of balance by dualizing the autonomic nervous system into sympathetic and parasympathetic nerve

Genome-wide analysis to predict protein sequence variations that change phosphorylation sites or their corresponding kinases

We define phosphovariants as genetic variations that change phosphorylation sites or their interacting kinases. Considering the essential role of phosphorylation in protein functions, it is highly likely that phosphovariants change protein functions and may constitute a proportion of the mechanisms by which genetic variations cause individual differences or diseases. We categorized phosphovariants into three subtypes and developed a system that predicts them. Our method can be used to screen important polymorphisms and help to identify the mechanisms of genetic diseases

Determination of Cutting Date and Interval on Native Grass Management of Agricultural Waterways in South Korea

Agricultural waterways provide a buffer zone between crop fields and adjacent rivers or streams. Waterways are important resource for agriculture water management, water quality and biodiversity conservation. The total linear distance of waterway in Korea is about 180,000 km, and about 40% are concrete and about 60% are grassed waterways. At present, the percentage of concrete waterways is increasing because of their water management efficiency. Some argue that continued expansion of concrete waterways is not sustainable because it leads to potential-degradation of the earth\u27s environment. This concern has led to renewed efforts to use grassed waterways as an alternative to concrete. In addition, grassed waterways enhance the environment-friendly image of agriculture that Korea farmers want to promote. The objective of this experiment was to determine the effect of cutting date and interval of native grasses for water management efficiency of agricultural waterway

Universal factorization property of certain polycyclic groups

AbstractLet H be a torsion-free strongly polycyclic (torsion-free virtually polycyclic, resp.) group. Let G be any group with maximal condition. We show that there exists a torsion-free strongly polycyclic (torsion-free virtually polycyclic, resp.) group G˜ and an epimorphism ε:G→G˜ such that for any homomorphism ϕ:G→H, it factors through G˜, i.e., there exists a homomorphism ϕ˜:G˜→H such that ϕ=ϕ˜∘ε. We show that this factorization property cannot be extended to any finitely generated group G. As an application of factorization, we give necessary and sufficient conditions for N(f,g)=R(f,g) to hold for maps f,g:X→Y between closed orientable n-manifolds where π1(X) has the maximal condition, Y is an infra-solvmanifold, N(f,g) and R(f,g) denote the Nielsen and Reidemeister coincidence numbers, respectively