• Journal of the Korean Society of Clothing and Textiles
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• v.42 no.4
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• pp.584-598
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• 2018

This study classified respondents by consumption value and analyzed differences in the purchase behavior of men's suits among consumption value groups. Frequency analysis, factor analysis, cluster analysis, and analysis of variance were conducted in order to analyze research problems. Factor analysis results showed that male consumption values included safety-oriented value, individuality-oriented value, others-oriented value, pleasure-oriented value, aesthetic-oriented value, low price-oriented value, community-oriented value, utility-oriented value, innovation-oriented value, and self-expression oriented value. The study divided respondents into personal satisfaction pursuit group, beauty & functionality pursuit group, individuality pursuit group, and others-oriented & low cost preference group according to consumption value. There were significant differences in selection criteria for men's suit (product image, physical properties of product, and brand name), selection reasons of brand (fashion & ostentation, individuality, and refinement), store attributes (store environment/salesperson service, reputation/additional service, and product assortment/shopping convenience).

• Journal of Microbiology and Biotechnology
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• v.10 no.5
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• pp.595-598
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• 2000

Aeromonas hydrophila is a pathogen to fish as well as human. It is a food-borne disease, and causes severe mortality in fish, and sometimes severe septicemia in human. In this study, a rapid detection method using latex agglutination has been developed for A. hydrophila. Polyclonal antibodies were raised against membrane and whole cells of three isolates from rainbow trout. Among these, latex particles coated with antibodies raised against whole cells of isolate No. 2 showed the best sensitivity. With latex particles coated with this antibody, we could detect $5{\times}10^4$ CFU of A. hydrophila in 5 min. The cross-reactivity with bacteria constituting the normal intestinal microflora and other pathogens for rainbow trout was insignificant. This latex agglutination assay method produced positive reaction with all clinical isolates of A. hydrophila which were identified by species-specific PCR for 16S rRNA in A. hydrophila.

• Journal of Hydrogen and New Energy
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• v.30 no.1
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• pp.8-13
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• 2019

In order to apply the Sievert's type automatic apparatus to thermal analysis of hydrogen absorbing materials, the Sievert's type automatic apparatus was modified in my laboratory. In this study, an experiment was conducted to see if hydrogen absorption and desorption reactions are possible under near constant pressure (${\pm}0.05atm$) using this device. The hydrogenation and dehydrogenation of the Mg-H system was investigated. And the program was also modified for the kinetics. It was found that it is possible to measure the hydrogen absorption rate under near constant pressure of Mg by using the modified Sievert's type automatic apparatus at 573 K and 598 K. And using this system, the hydrogen desorption rate of Mg hydride under near constant pressure at 623 K was also measurable. However, since the hydrogen desorption rate of Mg hydride is fast at 648 K, the hydrogen desorption reaction did not proceed within a constant pressure range of $0.15{\pm}0.05atm$.

• Journal of the Korean Ceramic Society
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• v.55 no.1
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• pp.55-60
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• 2018

In this study, quantum dots composed of $Mn^{2+}$ doped ZnS core and ZnS shell were synthesized using MPA precursor at room temperature. The ZnS: Mn/ZnS quantum dots were prepared by varying the content of MPA in the synthesis of ZnS shells. XRD, Photo-Luminescence (PL), XPS and TEM were used to characterize the properties of the ZnS: Mn/ZnS quantum dots. As a result of PL measurement using UV excitation light at 365 nm, the PL intensity was found to greatly increase when MPA was added at 15 ml, compared to the case with no MPA; the PL peaks shifted from 603 nm to 598 nm. A UV sensor was fabricated by using a sputtering process to form a Pt pattern and placing a QD on the Pt pattern. To verify the characteristics of the sensor, we measured the electrical properties via irradiation with UV, Red, Green, and Blue light. As a result, there were no reactions for the R, G, and B light, but an energy of 3.39 eV was produced with UV light irradiation. For the sensor using ZnS: Mn/ZnS quantum dots, the maximum current (A) value decreased from $4.00{\times}10^{-11}$ A to $2.62{\times}10^{-12}$ A with increasing of the MPA content. As the MPA content increases, the PL intensity improves but the electrical current value dropped because of the electron confinement effect of the core-shell.

• The Journal of the Korea Contents Association
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• v.22 no.7
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• pp.583-598
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• 2022

This study is a follow-up study of the Social Media Emotional Contagion(SECS) and it aims to validate the Social Media Emotional Contagion Scale(SECS) through CFA and criterion-related validity. The data was collected from 326 people in 20s. The criterion-related validity of SECS were confirmed with the Korean version of the Emotional Contagion Scale(K-ECS), the Basic Empathy Scale in Adult(BES-A), and the Rosenberg Self-esteem Scale(SES). As a result, the K-ECS and sub-factor of Emotional Contagion of BES-A, which are the same as the construction of SECS, converged. Other scales were differentiated from SECS. However, sub-factor of SES of positive self-esteem, which are the same as the construction of SECS, converged. Also, sub-factor of SES of negative self-esteem, which are the same as the construction of SECS of negative Emotional Contagion, converged. Finally, the significance and limitations of this study and future studies were discussed.

• Journal of Korean Home Economics Education Association
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• v.27 no.1
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• pp.13-29
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• 2015

This study examined whether any differences were found in body comparison, body satisfaction, and appearance management behaviors according to socialcultural attitudes toward appearance among male and female adolescents in Gwangju and Jeolla province. It was conducted by a self-report survey of 598 male and female students in eigth and eleventh grades in Gwangju and Jeonnam province, South Korea. The collected survey data were analyzed by Cronbach's ${\alpha}$, Factor analysis, ${\chi}^2$ test, K-means cluster analysis, t-test, one-way ANOVA, Duncan's grouping using SPSS/PC WIN 19.0 statical program. The results were as the following: Adolescents perceived and internalized more highly than the common level the socialcultural value toward appearance, especially for female, and by age, juniors in high school than in middle school. Socialcultural attitudes toward appearance could be classified into four categories: 'Accepted type', 'internal type', 'aware type', and 'unaccepted type'. Students who were classified as 'accepted type', and 'internal type' showed lower level of body satisfaction and compared their bodies more often with others. They also actively received appearance management behaviors. Therefore, they showed positive attitude toward cosmetic surgery and functional garments. They also worked hard to reduce their weights just to show off to others. In conclusion, it is necessary for education programs to protect self-esteem of adolescents from the socialcultural distortion to appearance.

• The Journal of Industrial Distribution & Business
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• v.10 no.5
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• pp.27-36
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• 2019

Purpose - Naver has emerged as a new leader in the open market. While existing open markets such as Gmarket, 11th Street, and so on are suffering from profitability deterioration, Naver is attracting sellers based on low commission and powerful search engine. We would like to analyze the impact of Naver shopping on the national economy, especially on employment, in a situation where the market reaction to Naver's strength as a leader in online shopping is mixed. Research Design, Data, and Methodology - Through the demand inducing inter-industry analysis, we estimate the employment inducement effect by Naver shopping from its shopping transaction. In turn, through the supply inducing inter-industry analysis, we estimate the employment inducement effect by Naver shopping from its low commission and powerful search engine. For the purpose of inter-industry analysis, as of 2018, the most recently announced 2014 inter-industry table (extension table) from the Bank of Korea is used. Results - The results of this study are as follows. First, Naver Shopping is expected to generate 7.8 trillion won's trade in 2018, resulting in 244,225 of job inducement, and 158,598 of employment inducement. In addition, Naver Shopping is estimated to benefit KRW 213 billion to its sellers due to low commission and powerful search function, resulting in 8,667 of job inducement, and 5,655 of employment inducement. Second, in terms of job inducement and employment inducement due to Naver Shopping's trade, transportation, business support service, information and communication, broadcasting, restaurants and lodging were ranked. Third, in terms of job inducement and employment inducement due to Naver Shopping's low commission and powerful search function, restaurants and hospitality, f/b and cigarette manufacturing, construction, and transportation equipment manufacturing were ranked. Conclusions - The number of job inducement resulting from low commission and powerful search engine of Naver shopping in 2018 was 8,667 (3.7% of 244,225, which was caused by transaction in Naver shopping in 2018), and employment inducement was 5,655 (3.7% of 158,598, which was caused by transaction in Naver shopping in 2018), which can be considered as additional employment impacts of Naver Shopping compared to the other online shopping operators.

• The korean journal of orthodontics
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• v.47 no.4
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• pp.215-221
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• 2017

Objective: This questionnaire study aimed to estimate the overall frequencies of positive perception towards orthodontic treatment among adults categorized according to age, sex, and area of living, and to identify barriers or negative perceptions preventing them from receiving orthodontic treatment. Methods: The participants included 598 adults aged over 20 years (230 men and 368 women) who visited the Dental Hospital of Seoul St. Mary's Hospital. The participants' opinions regarding their consideration of receiving orthodontic treatment were recorded using a specially designed questionnaire. Results: The overall rate of positive perception towards orthodontic treatment was 48.5%. Compared to adults in their 20s (63.2%), those in their 40s and 50s had a lower percentage of interest in orthodontic treatment (46.2% and 45.1%, respectively; p < 0.05). Overall, women (52.2%) had a higher rate of interest than did men (42.6%; p < 0.05). The area of living had no effect on the percentage of interest. The order of priority of chief complaints differed according to age: protrusion for those in the 20s and 30s, and spacing for those in the 40s to 60s. Overall, the main reason for not seeking treatment was the treatment fee. Respondents aged over 40 considered themselves "too old" for orthodontic treatment. Conclusions: The middle-aged had a relatively high percentage of interest (above 45%) in orthodontic treatment. However, demographic characteristics were not significantly associated with the positive interest. These results highlight the need for educating the middle-aged about the limitations and possibilities of orthodontic treatment to increase its acceptance.

• Journal of Microbiology and Biotechnology
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• v.13 no.4
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• pp.598-606
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• 2003

Salmonella encodes an enterotoxin (Stn) which possesses biological activity similar to the cholera toxin. Stn contributes significantly to the overall virulence of S. typhimurium in a murine model. The production of Stn is enhanced in a high-osmolarity medium and by contact with epithelial cells. In the present study, the in vitro and in vivo transcriptional regulations of the sin promoter revealed two promoters, P1 and P2. The P1 promoter identified by a primer extension analysis of stn mRNA exhibited a switching mechanism in vivo. Depending on the growth stage, transcription was initiated from different start sites termed $P1_S\;and\;P1_E$. $P1_S$, recognized by RNA polymerase containing ${\sigma}^S(E{\sigma}^S),\;and\;P1_E$, recognized by $E{\sigma}^70$, were activated during the stationary and exponential phases, respectively, while $P1_S\;and\;P1_E$ were both negatively regulated by CRPㆍcAMP and H-NS. Results revealed that $P1_S$ was the responsible promoter activated under a high osmolarity and low pH. The P2 promoter was identified 45 nucleotides downstream from $P1_E$ and negatively controlled by CRPㆍcAMP in vitro. No P2 activity was detected in vivo. The regulation of stn expression monitored using a Pstn::egfp fusion indicated that $E{\sigma}^S$ was required for the induction of stn and various factors were involved in stn regulation inside animal cells.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.35 no.4
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• pp.266-274
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• 2024

Objectives: This study aimed to investigate the relationship between adult attention-deficit/hyperactivity disorder (ADHD) and anxiety symptoms. Methods: A total of 52 patients diagnosed with adult ADHD completed self-report assessment scales. The clinical features of ADHD were assessed using the Adult ADHD Self-Report Scale (ASRS) and Korean Adult ADHD Rating Scale (K-AARS). The State-Trait Anxiety Inventory (STAI) was used to assess anxiety-related symptoms. Correlation and linear regression analyses were conducted to examine the relationships between the diagnostic scales of adult ADHD and anxiety. Results: Higher scores on the ASRS were related to higher scores on the STAI-S (r=0.482) and STAI-T (r=0.573), which assess state anxiety and trait anxiety, respectively. Subscales of inattention (STAI-S, r=0.485; STAI-T, r=0.648), impulsivity (STAI-S, r=0.404; STAI-T, r=0.491), emotional dysregulation (STAI-S, r=0.498; STAI-T, r=0.639), disorganization (STAI-S, r=0.427; STAI-T, r=0.545) on the KAARS, and the subtotal of K-AARS clinical subscales (STAI-S, r=0.517; STAI-T, r=0.540) had significant correlations with both STAI-S and STAI-T scores. After adjusting for demographic characteristics, there were significant associations between ASRS total scores (β=0.299) and STAI-S scores, and between inattention (β=0.297), impulsivity (β=0.560), emotional dysregulation (β=0.393), disorganization (β=0.817), subtotal scores on the K-AARS subscales (β=0.114), and STAI-S scores. The multivariate regression analysis also showed significant associations between ASRS total scores (β=0.409) and STAI-T scores. Associations between K-AARS subscales of inattention (β=0.468), impulsivity (β=0.817), emotional dysregulation (β=0.598), disorganization (β=1.120), subtotal scores on the K-AARS subscales (β=0.134), and STAI-T scores remained significant after adjusting demographic variables. Conclusion: Comprehensive assessment of ADHD symptoms related to anxiety would be important for the evaluation and treatment of anxiety in adult ADHD patients.