• Journal of Ecology and Environment
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• v.31 no.3
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• pp.177-181
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• 2008

Recently, the evolutionary study of human psychology and behavior has undergone rapid growth, diversifying into a few distinct sub-disciplines. One fundamental issue over which researchers in Human Behavioral Ecology and Evolutionary Psychology (EP) have different views is the role of formal optimality modeling for making hypotheses and deriving predictions about human adaptations. The study of EP typically rests on informal inferences and rarely uses optimality modeling, a strategy which human behavioral ecologists have severely criticized. Here I argue that EP researchers have every reason to make extensive use of optimality modeling as its research method. I show that optimality modeling can play an integral role in identifying the functional organization of human psychological adaptations.

• Korean Journal of Human Ecology
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• v.18 no.1
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• pp.93-112
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• 2009

The purpose of this study is to identify stresses and adjustment elements of Chinese students in Korea. The data analysis was conducted by qualitative method based on interviews with sixteen Chinese students as a focus group by the help of two interpreters. The results were as follows: first, stresses of Chinese students were from 'cultural difference', 'language', and 'financial', 'educational' and 'psychological stress', and 'university culture in Korea'. Those categories were divided into several sub categories. Second, ten helpful elements Chinese students could adapt themselves to Korean university life were such as 'Help of Korean professor and friends', 'Chinese friends' help', 'English-oriented lecture', 'Cultural affinity to Korea', 'Fluency in Korean language', 'Integration to Korean culture', 'Pride in Chinese culture', 'Individual effort', 'Satisfaction with educational environment', 'Perception of self-growth'.

• Korean Security Journal
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• no.48
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• pp.235-258
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• 2016

The purpose of this study is to find out the effectiveness of the group guidance program using positive psychology for national security related university entrants' psychological wellbeing. This study is to investigate the influence of group guidance program on the increase of psychological well-being of university entrants through active and deliberate program based on the positive psychology. To achieve this purpose, thirty nine students (male 19, female 20) among national security related university entrants were selected and allocated to experimental and comparative groups. Experimental group was nineteen students (male 10, female 9), and comparative group was twenty students (male 9, female 11). Experimental group was divided into two teams (male and female team), and guided by each leader. The group guidance was participated in total ten-week sessions, fifty mins per week. The results were as follows; First, the group guidance program using positive psychology for national security related university entrants' had a positive effect on the students' psychological wellbeing. Second, effects of subordinate factors (autonomy, controling environment, personal growth, positive relations) in comparison in pre and post test of program had an influence very positive or positive, while one factor (purpose in life) didn't show a positive effect.

• International Journal of Computer Science & Network Security
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• v.22 no.9
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• pp.396-402
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• 2022

The study deals with the problem of the formation of pre-service teachers' reflective skills in information environment. The role of reflection as a mechanism of formation of a modern teacher's self-consciousness was cleared up. The technology of formation of pre-service teachers' reflective skills was characterized and tested. The main stages of the technology were: a motivational and cognitive stage, a problematic and practical stage, and a reflective and operational stage. The substantiated pedagogical conditions of formation of pre-service teachers' reflective skills were adhered. The criterial and evaluative characteristics of the formation of pre-service teachers' reflective skills were worked out: components (reflection of personal conformity, reflection of the psychological and pedagogical barriers, reflection of professional growth); criteria (criterion of consistency, criterion of difficulty, criterion of potential); indicators (cognitive-evaluative, value-motivational, activity-creative). The levels of formation of pre-service teachers' reflective skills (insufficient level, acceptable level, and optimum level) were determined. The analysis of students' surveys showed the effectiveness and expediency of using the technology of formation of pre-service teachers' reflective skills in the process of professional training.

• The Korean Journal of Food And Nutrition
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• v.21 no.1
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• pp.79-86
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• 2008

In this study the sensitivity subjected to housing environmental as well as actual life and subjected to dietary living using experimental mice were investigated. In order to invest sensitivity for dietary life of the mice, using the dropwort(MINAISU) juice and the fermented with the extracted dropwort for change of weight on the mice, this was examined. The result of thus, group of infection through the mouth on dietary treatment for the high-fat foods and the dropwort more than compared with group of dietary treatment for the high-fat foods tended to be decreased. On fermented secretion group of the dietary treatment total cholesterol number also was decreased, the concentration of HDL cholesterol was shown a slight increased. The result of studying for the sensitivity controlled architectural structural material for the mice, coming under wooden living environment, making appearance with increasing weight as well as taking food and drink for psychological rest was considered. To examine changing weight through the mice in regard to the sensitivity for dietary life and living environment, in connection with promotion of health as well as diseases control the caused by those, would be achieve new balanced growth on basic study. Also that would be anticipated to making good use of thus results.

• The Journal of the Convergence on Culture Technology
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• v.9 no.1
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• pp.27-36
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• 2023

As influencers have recently drawn attention amid the rapid growth of the global market in influencer, it is time for systematic research on the working characteristics and working environment of influencers. Therefore, this study empirically examined whether positive psychological capital and social support have a moderating effect on job burnout in the relationship between influencers' emotional labor and job stress on job burnout. A survey was conducted influencers who were active through Instagram, and structural equation were used for statistical processing and analysis. As a result of the analysis, it was found that positive psychological capital had no moderating effect, and the relationship between emotional coordination and job burnout was adopted as the moderating effect of social support, and the the relationship between surface behavior and job burnout, it was found that there was no significant interaction between variables and job burnout.

• Biomedical Science Letters
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• v.21 no.1
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• pp.15-22
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• 2015

Dexamethasone, a synthetic glucocorticoid (GC), is clinically administered to woman at risk for premature labor to induce fetal lung maturation. However, exposure to repeated or excess GCs leads to intrauterine growth restriction (IUGR) and subsequently increases risk of psychiatric and cardio-metabolic diseases in later life through fetal programming mechanisms. GCs are key mediators of stress responses, therefore, maternal nutrient restriction or psychological stress during pregnancy also causes negative impacts on birth and neurodevelopment outcome of fetuses, and other congenital defects, such as craniofacial and skeletal abnormalities. In this study, to examine the effect of prenatal stress on fetal skeletal development, dexamethasone (1 mg/kg [DEX1] or 10 mg/kg [DEX10] maternal body weight per day) was administered intraperitoneally at gestational day 7.5~9.5 and the skeletons were prepared from embryos at day 18.5. Seven out of eighteen (39%) embryos treated with DEX10 showed axial skeletal abnormalities in either the T13 or L1 vertebrae. In addition, examination of the sternum revealed that xiphoid process, the protrusive triangular part of the lower end of the sternum, was bent more outward or inward in DEX group embryos. In conclusion, our findings suggest a possible link to the understanding of the effect of uterine environment to the fetal skeletal features.

• The Journal of Economics, Marketing and Management
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• v.5 no.3
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• pp.12-20
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• 2017

The study examined effects of psychological change of distribution environment upon commercial areas to investigate consumers' experience and theory and to suggest power of new management strategy for growth of retailers A The study investigated actual conditions of business transaction of hyper market by blind interview. In April, 2016, the author visited 6 manufacturers to do depth interview. The questionnaire between food manufacturers and hyper market investigated the Association of Food Industries in Korea, NH Nonghyup and large manufacturers in July 2012. Questionnaires of 25 companies were used after excluding questionnaire having poor and inadequate answers. The sales commission with large scaled distribution business decreased (0.3 ~ 0.7) to increase additional expenses such as number of salesmen, interior expenses and economic costs (0.7 ~ 40%). (source: Fair Trade Commission). Fair Trade Commission released types and notice of unfair trade of large scaled retail business based on monopoly regulation and fair trade (hereinafter called 'notice of large scaled retail) to prevent large scaled distribution business from doing unfair trade. The notice controled unfair trade at different position between large scaled distribution business and small vendors.

• Korean Journal of Community Nutrition
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• v.28 no.1
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• pp.1-10
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• 2023

Objectives: This study aimed to investigate the nutritional status and dietary behavior of adolescents from North Korean refugee (NKR) families residing in South Korea (SK), who are known to be at a higher risk of malnutrition due to their lower socioeconomic status and facing other psychological challenges. Methods: A total of 178 adolescents (91 males and 87 females) from NKR families were included in the analysis, and their demographic details such as age, birthplace, parental nationality, and duration of their settlement in SK were collected through questionnaires. Anthropometric measurements were also taken to determine their growth and nutritional status according to the 2017 Korean National Growth Charts for children and adolescents. The study used the Nutrition Quotient for Korean Adolescents (NQ-A) questionnaire to assess the dietary behavior of the participants. Results: Approximately 11.8% and 10.1% of participants were identified with malnutrition and obesity, respectively. The total mean score for the NQ-A was 50.1. The mean scores for the individual factors of balance, diversity, moderation, environment, and practice were 49.2, 44.7, 43.8, 51.2, and 61.5, respectively. Approximately 47.2% of participants had a low NQ-A grade. However, there was no significant difference in the NQ-A scores according to their nutritional status or duration of time in SK. Conclusions: Adolescents from NKR families exhibited both malnutrition and obesity. However, their dietary behavior, as assessed using the NQ-A, did not vary with their nutritional status. The unique challenges and related dietary behavior of North Korean adolescent refugees should be taken into consideration, when developing targeted strategies for nutritional education and health management programs.

• Journal of the Korean Society of Safety
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• v.38 no.4
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• pp.32-38
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• 2023

Job stress factors are factors that induce biological, psychological, and behavioral responses in individuals when they encounter mental and physical stimuli in the workplace. According to occupational safety and health standards, employers are responsible for the health consequences of job stress when workers engage in activities that result in high levels of physical fatigue and mental stress. Such activities include long working hours, shift work (including night shifts), driving vehicles, and operating precision machinery. Therefore, precautionary measures should be implemented. Following the COVID-19 epidemic, the logistics industry in Korea has experienced rapid growth owing to the shift from offline to online platforms facilitated by advanced digital infrastructure. Consequently, this study conducted a survey to analyze job stress factors among delivery workers. The survey utilized a Korean job stress factor assessment tool comprising 43 items and analyzed job stress factors considering the work characteristics of the courier business field obtained from responses provided by 421 courier workers nationwide. The survey analysis revealed that the physical environment, job demands, and job autonomy exhibited higher stress indices among Korean workers. Furthermore, the younger the age, the higher the stress on job demands, whereas the higher the age, the higher the stress on relationship conflict, job instability, and workplace culture. In addition, daytime delivery work was associated with higher stress levels in job demands and job instability compared with nighttime delivery work. These findings can serve as foundational data for reducing and preventing job stress among courier workers, whose workload has increased owing to the growth of the logistics industry.