• Journal of Ginseng Research
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• v.42 no.1
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• pp.16-20
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• 2018

Background: The Panax ginseng plant is used as an herbal medicine. Phytosterols of P. ginseng have inhibitory effects on inflammation-related factors in HepG2 cells. Methods: Phytosterols (e.g., stigmasterol and ${\beta}$-sitosterol) in the roots of P. ginseng grown under various conditions were analyzed using high-performance liquid chromatography. The P. ginseng roots analyzed in this study were collected from three cultivation areas in Korea (i.e., Geumsan, Yeongju, and Jinan) and differed by cultivation year (i.e., 4 years, 5 years, and 6 years) and production process (i.e., straight ginseng, red ginseng, and white ginseng). Results: The concentrations of stigmasterol and ${\beta}$-sitosterol in P. ginseng roots were 2.22-23.04 mg/g and 7.35-59.09 mg/g, respectively. The highest concentrations of stigmasterol and ${\beta}$-sitosterol were in the roots of 6-year-old P. ginseng cultivated in Jinan (82.14 mg/g and 53.23 mg/g, respectively). Conclusion: Six-year-old white ginseng and white ginseng cultivated in Jinan containing stigmasterol and b-sitosterol are potentially a new source of income in agriculture.

• Asian-Australasian Journal of Animal Sciences
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• v.28 no.5
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• pp.686-690
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• 2015

The adrenergic receptor beta 2 (ADRB2) plays a role in various physiological responses of the muscle to exercise, such as contraction and relaxation. Given its important role in muscle function, we investigated the structure of the horse ADRB2 gene and its expression pattern after exercise to determine if it can serve as a putative biomarker for recovery. Evolutionary analyses using synonymous and non-synonymous mutation ratios, were compared with other species (human, chimpanzee, mouse, rat, cow, pig, chicken, dog, and cat), and revealed the occurrence of positive selection in the horse ADRB2 gene. In addition, expression analyses by quantitative polymerase chain reaction exhibited ubiquitous distribution of horse ADRB2 in various tissues including lung, skeletal muscle, kidney, thyroid, appendix, colon, spinal cord and heart, with the highest expression observed in the lung. The expression of ADRB2 in skeletal muscle was significantly up-regulated about four folds 30 minutes post-exercise compared to pre-exercise. The expression level of ADRB2 in leukocytes, which could be collected with convenience compared with other tissues in horse, increased until 60 min after exercise but decreased afterward until 120 min, suggesting the ADRB2 expression levels in leukocytes could be a useful biomarker to check the early recovery status of horse after exercise. In conclusion, we identified horse ADRB2 gene and analyzed expression profiles in various tissues. Additionally, analysis of ADBR2 gene expression in leukocytes could be a useful biomarker useful for evaluation of early recovery status after exercise in racing horses.

• The Korean Journal of Mycology
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• v.44 no.4
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• pp.318-322
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• 2016

The prototypes, Rto-x+$Ca(NO_3)_2$, K-Ca, and Rto-$x{\beta}$, which were extracted from spent mushroom substrate of Hericium erinaceus, strongly inhibited the growth of Ralstonia solanacearum. The control efficacies of tomato bacterial wilt by treatment with Rto-x+$Ca(NO_3)_2$, K-Ca, and Rto-$x{\beta}$ were 87.4~92.4%, 46.0~100%, and 65.0~91.9%, respectively. These results indicate that Rto-x+$Ca(NO_3)_2$, K-Ca, and Rto-$x{\beta}$ have a potential as eco-friendly antibacterial materials for the control of tomato bacterial wilt caused by R. solanacearum.

• Journal of Digital Convergence
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• v.17 no.8
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• pp.257-264
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• 2019

This study was conducted to investigate the effect of 70% ethanol extract (DR) on the mast cell-mediated allergic contact dermatitis induced by dinitrofluorobenzene in BALB / c mice, which affects the cell activity by antigen in RBL-2H3 mast cells Respectively. The ethanol extracts of RBL-2H3 cells activated by DNP-HSA and anti-DNP IgE antibodies inhibited the secretion of ${\beta}$-hexosaminidase, histamine, and IL-4 and $TNF-{\alpha}$ Production was suppressed. In the DNFB-induced contact allergic dermatitis animal model, treatment with ethanol extract reduced ear swelling and inhibited serum histamine and IL-4 secretion, and DR treatment effectively prevented mast cell infiltration in dermatitis-induced areas. As a result, the ethanol extract may be used as a therapeutic agent for mast cell-mediated allergic diseases such as atopic dermatitis.

• The Journal of the Convergence on Culture Technology
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• v.5 no.2
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• pp.217-223
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• 2019

The purpose of this study was designed to identify the factor contributing to self-esteem of children. Based on the survey results, it was found that the major factors influencing Self-esteem include school record(${\beta}=-.15$, p<.001), communication with mother(${\beta}=.31$, p<.001), child-rearing attitude(${\beta}=.16$, p=.002). These factors explained 32.6% of the self-esteem of children. Therefore these factors should be considered in the educational programs for development of children's self-esteem.

• Journal of Digital Convergence
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• v.16 no.1
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• pp.165-175
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• 2018

This study was tried to investigate the convergence factors affecting the grit of nursing students who experienced clinical practice, focusing on recent interest in grit. The study subjects were 126 juniors and seniors in a nursing college, and the data were collected from June 1, 2017 to June 8, 2017. They were analyzed using the SPSS 23.0 statistical program(Independent t-test와 One Way ANOVA, Person's Correlation, Stepwise regression, hierarchical). The analyzed data showed that grit of the subjects was positively correlated with self-esteem (r=.160, p=.037) and self-efficacy (r=.232, p=.004) And self-efficacy (r=.541, p<.001). According to the results of the multiple regression analysis, only the self-efficacy significantly predicted grit (${\beta}=.232$, p=.009). As a result, this study provides a more comprehensive understanding of the variables related to Grit, and it can be especially valuable for the direction of what education should be helpful to nursing students in clinical practice.

• Journal of Convergence for Information Technology
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• v.7 no.5
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• pp.15-23
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• 2017

The purpose of this study is to analyze converged factors affecting learning flow in nursing college students. The study conducted survey on 200 nursing students attending a college in Chungcheongbuk-do. The study processed data using descriptive statistics, t-test, ANOVA and Pearson correlation coefficients and multiple regression analysis for the analysis. As for the relationship between self-leadership, social support and learning flow, the higher self-leadership(r=568, p<.001), and social support (r=.412, p<.001) led to higher learning flow of the study subject. The influential variables of learning flow was self-leadership with 33.0% of explanation power(${\beta}=.501$, p<.001). Likewise, the study confirmed that self-leadership is a very significant variable of learning flow of nursing students. Based on the theoretic grounds, there is a need to seek measures to improve learning flow by improving self-leadership of nursing students.

• Journal of applied mathematics & informatics
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• v.29 no.1_2
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• pp.227-245
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• 2011

In this paper, we introduce a new iterative method for finding a common element of the set of solutions for mixed equilibrium problem, the set of solutions of the variational inequality for a ${\beta}$inverse-strongly monotone mapping and the set of fixed points of a family of finitely nonexpansive mappings in a real Hilbert space by using the viscosity and Ces$\`{a}$ro mean approximation method. We prove that the sequence converges strongly to a common element of the above three sets under some mind conditions. Our results improve and extend the corresponding results of Kumam and Katchang [A viscosity of extragradient approximation method for finding equilibrium problems, variational inequalities and fixed point problems for nonexpansive mapping, Nonlinear Analysis: Hybrid Systems, 3(2009), 475-86], Peng and Yao [Strong convergence theorems of iterative scheme based on the extragradient method for mixed equilibrium problems and fixed point problems, Mathematical and Computer Modelling, 49(2009), 1816-828], Shimizu and Takahashi [Strong convergence to common fixed points of families of nonexpansive mappings, Journal of Mathematical Analysis and Applications, 211(1) (1997), 71-83] and some authors.

• Journal of the Korean Society of Industry Convergence
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• v.2 no.2
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• pp.61-68
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• 1999

The variety of crystalline structure and mechanical properties of PP filament treated with dry heat treatment at different draw ratio has been studied. Crystalline structure and mechanical properties of annealed PP filament at different draw ratio has been examined by XRD, UTM, and density method. Heat treatment has been carried out $100^{\circ}C$, $120^{\circ}C$ $140^{\circ}C$ for 30min. in dry oven. From the results of this study, it found the following facts. It was found that the crystallinity and crystallite size of (110) plane of sample were increased with increasing of annealed temperature and draw ratio. The crystalline form of annealed sample which was undrawn showed ${\alpha}$, ${\beta}$ mixing form below $120^{\circ}C$ and showed ${\alpha}$ form at $140^{\circ}C$. But the crystalline form of annealed sample which was drawn showed ${\alpha}$ form at $120^{\circ}C$. Initial modulus and tensile strength were increased with increasing of annealing temperature, and the degree of orientation was decreased with decreasing of annealing temperature.

• The Korean Journal of Food & Health Convergence
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• v.4 no.4
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• pp.18-25
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• 2018

Proteins play a key role in many functions such as metabolic activity, differentiation, as cargos and cell fate regulators. It is necessary to know about the markers involved in male fertility in order to develop remedies for the treatment of male infertility. But, the role of the proteins is not limited to particular function in the biological systems. Some of the proteins act as ion channels such as catsper and proteins like Nanos acts as a translational repressor in germ cells and expressed in prenatal period whose role in male fertility is uncertain. Rbm5 is a pre mRNA splicing factor necessary for sperm differentiation whose loss of function results deficit in sperm production. DEFB114 is a beta defensin family protein necessary for sperm motility in LPS challenged mice where as TEX 101 is a plasma membrane specific germ cell protein whose function is not clearly known u to now. Gpr56 is another adhesion protein whose null mutation leads to arrest of production of pups in rats. Amyloid precursor protein role in Alzheimer's disease is already known but it plays an important role in male fertility also but its function is uncertain and has to be considered while targeting APP during the treatment of Alzheimer's disease. The study on amyloid precursor protein in male fertility is a novel thing but requires further study in correlation to alzheimer's disease.