• Journal of Environmental Health Sciences
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• v.41 no.6
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• pp.412-424
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• 2015

Objectives: An ultra dry air environment of nearly ${\leq}2%$ RH is often required in lithium battery factories. The objective of this study is to evaluate the subjective eye, pulmonary, nose, and skin symptoms of workers exposed to ultra-low relative humidity and thionyl chloride. Methods: We recruited 274 workers using a self-reported questionnaire in March 2014. Those who worked in ultra-low relative humidity and with thionyl chloride were identified and their prevalence of symptoms was compared with that of other workers. We excluded white collar workers, researchers and other workers who were exposed to various hazard factors, and finally included 164 workers. Results: There were significant differences in the rate of self-reported eye and skin symptoms between exposure group_1 and exposure group_2. Exposure group_2 experienced more frequent eye, and skin symptoms. Multinomial logistic regression analysis for experience of dry eye symptoms and skin symptoms in exposure group_2 showed that dry eye symptoms (odds ratio [OR], 6.33, 95% confidence interval [CI], 2.19-18.24, p<0.001), and itchiness (OR, 6.45, 95% CI, 1.94-21.43, p<0.01) were the significant variables. The complaints of workers experiencing ultra-low relative humidity and thionyl chloride were high compared with other workers. Conclusion: These findings suggest that exposure to ultra-low relative humidity and thionyl chloride may be associated with more frequent eye and skin symptoms than exposure to ultra-low relative humidity alone. The current precautions to protect workers from the adverse effects of ultra-low relative humidity and thionyl chloride appear to be insufficient, indicating that additional management plans to reduce symptoms should be considered.

• Korean Journal of Human Ecology
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• v.19 no.1
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• pp.137-147
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• 2010

This research was designed to compare the subjective evaluation of texture image and preference by structure and sensible characteristics of women's suits fabrics between on- and off-line. 78 subjects who majored in fashion design evaluated the sensibility image and preference of 15 various kinds of specimens on- and off-line. Factor analysis, t-test, Pearson correlation and regression were used for a statistical analysis by SPSS WIN 13.0. The results of this study were as follows: 1. Women's suits fabrics were classified according to five sensibility image factors: 'classic', 'sophisticated', 'natural', 'characteristic', and 'practical'. 2. The results of the t-test showed that there were no differences between the on- and off-line evaluation of sensibility images. 3. The analysis of correlation indicated that the 'classic'-'sophisticated' and 'natural'- 'practical' sensibility images show a significant correlation between the two kinds of evaluation. 4. The results of regression revealed that 'sophisticated', 'characteristic' and 'practical' sensibility images had an effect on the purchase preference of women's suits fabrics. 5. 'Sophisticated', 'characteristic' and 'classic' sensibility images had an effect on the tactile preference of women's suits fabrics. 6. The structural characteristics of fabrics: thickness, weave and weight had an effect on the 'classic' sensibility image. Thickness had an effect on the 'sophisticated' sensibility image and fabric count had an effect on the 'characteristic' sensibility image.

• Korean Journal of Community Nutrition
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• v.6 no.3
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• pp.331-339
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• 2001

This study was conducted to examine the predicting factors for the intention of breastfeeding with The Theory of Planned Behavior. The questionnaires were distributed to 131 primigravidas who were in their third trimester of pregnancy in Seoul, Kyonggido, Kyongsangbukdo, and Kyongsnagnamdo. Descriptive statistics, Pearsons Correlation and Multiple Regression were used to analyse the data. The subjects showed strong intention of breastfeeding. The subjects showed favorable attitudes toward breastfeeding. This fact showed significant correlation with the belief that their breastfeeding intention was due to the advantage of breast milk for the infant with regard to allergy prevention, disease protection, contribution to intellectual development, psychological closeness between mother and infant, convenience, cost, and the reduction of breast cancer risk and weight of the mother. No item of outcome evaluation did showed significant correlation with behavioral intension. The subjects were influenced about breastfeeding by their referents such as siblings and friends with breastfeeding experience, their mothers and husbands, and mothers-in-law. Most items of the control beliefs had a significant influence on the intention of breastfeeding. The subjects felt they could not control the situation ie. "when I have to breastfeed in public". However they felt they could control the situation ie. "when I suffer from mastitis", "when I have to cut down on coffee, alcohol, and smoking", "when I have Caesarean section", "when I need to maintain breast condition", and "when the infant hates to suck my nipple". Regression analysis revealed that control beliefs and attitudes toward breastfeeding could predict the behavioral intention of breastfeeding. Control beliefs were the most important factor in predicting behavioral intention. Therefore, nutrition education is needed to enhance the ability to cope with difficult situations while breastfeeding and increase faborable attitudes toward breastfeeding.eding and increase faborable attitudes toward breastfeeding.

• Korean journal of communication and information
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• v.78
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• pp.116-140
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• 2016

The present study examined the factors influencing individuals' risk information seeking and processing using the case of 2015 MERS outbreak in Korea. Analyses of two-wave online panel data demonstrated that perceived risk, negative affect, subjective norm, and information insufficiency predicted the risk information seeking/avoiding as well as information processing mode, which validates the Risk Information Seeking and Processing(RISP) model. More importantly, this study found new evidence that information seeking and systematic processing promoted MERS preventive behaviors. In addition, active SNS use moderated the link between perceived risk and negative affects about MERS crisis as well as the relationship between social normative pressure and to seek the risk related information.

• Journal of the Korea Convergence Society
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• v.9 no.4
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• pp.453-460
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• 2018

The present study was conducted to provide the basic data for SNS addiction interventions by identifying the convergence effect of academic resilience, social support, and subjective happiness on SNS addiction tendency of university students. The study was conducted on 270 university students and the IBM SPSS 23.0 program was used for data analysis. The findings of the present study were as follows. 1) The SNS addiction tendency was found to be negatively correlated with academic resilience (r=-.17, p=.005) and social support (r=-.20, p=.001). 2) The significant influencing factors were number of daily use hours (${\beta}=4.40$) and social support (${\beta}=-0.28$), and their explanatory power was 11.2% (F=4.08, p<.001). Therefore, development and application of programs considering the general characteristics of university students are necessary to reduce the SNS addiction tendency and increase their quality of life.

• Journal of the Korean Home Economics Association
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• v.40 no.11
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• pp.193-205
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• 2002

To evaluate farmers' workload during harvesting grapes in summer, this study investigated farmers' physiological, psychological responses, work postures and thermal environment around in the field. This field study was conducted in the Anseong County of Kyonggi Province at the end of August. Five career farmers (1 male, 4 females) volunteered as subjects. Three of them were over their sixties. During harvesting grapes in the field, physiological responses were monitored continuously. 1. Air temperature (T/sub a/), air humidity(H/sub a/), black globe temperature(T/sub g/), air velocity and WBGT around the grape field were 26.9℃, 77.7%RH, 32.8℃, 0.08㎧ and 26.3℃, respectively. Because farmers started the harvesting task in early morning, thermal environments weren't conditions to give farmers severe heat strain. 2. The percentage of the work postures was larger in order of standing, walking, and bending one's back posture. Particularly, the percentage of standing posture with raising both arms above shoulder of two farmers was up to 29% and 61% of the total work duration. 3. Rectal temperature (T/sub re/), mean skin temperature (T/sub sk/), clothing microclimate temperature (T/sub cl/) on the chest and the back, heart rate (HR) and energy expenditure (EE) were 37.2℃, 33.1℃, 32.0℃, 32.4℃, 88bpm and 1.3 Kca1/㎡/min respectively. In the point of these physiological results, we evaluated that the harvesting task was a moderate work. 4. All farmers expressed‘hard, hot, humid and slightly uncomfortable’ at the end of works for each subjective questionnaire. The grape harvesting tasks were not evaluated as a very hard work in the point of physiological work standards. But we considered 1) inappropriate work posture (standing posture with raising both arms above shoulder) and 2) farmers' age as burden factors. These findings suggest that adding adequate protective clothing/equipments for farmers may contribute to maintain their body temperature within the normal range, stabilize HR and decrease psychological strain.

• Journal of Korean Foot and Ankle Society
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• v.11 no.2
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• pp.192-197
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• 2007

Purpose: The purpose of this study is to present our clinical results after surgical treatment in tarsal tunnel syndrome due to space occupying lesions. Material and Methods: We performed surgical decompression for tarsal tunnel syndrome in 20 patients from July 2004 to February 2007. Out of them, thirteen cases were due to space occupying lesions around the tarsal tunnel. The average age at operation was 51.3 years old and the duration from symptom onset to surgery was 16.5 months. The operation included removal of space occupying lesions and tarsal tunnel decompression. The clinical parameters were pain visual analogue scale (VAS), AOFAS scale, and subjective satisfaction. Results: The ganglion cysts were the most frequent causes (ten cases) and synovial chondromatosis in 1 case, neurofibroma in 1 case, talocalcaneal coalition in 1 case. The average follow-up duration was 14.5 months. The AOFAS scale showed significant improvement from 77.8 to 92.7. The average VAS decreased from 6.4 to 2.2. Seven out of thirteen patients were satisfied with the results. The excellent results were shown in six patients, the good results in one patient, the fair result in three patients and the unsatisfactory results in three patients. Conclusion: Favorable results could be obtained in patients with known etiology. But not all cases with surgical decompression of space occupying lesions showed satisfactory results. We assume that the clinical results were related to the multiple factors, not only well performed surgery but also age, size lesions and duration of symptoms, ect.

• The Journal of Korean Academic Society of Nursing Education
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• v.12 no.1
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• pp.43-51
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• 2006

Purpose: This study was performed to identity the relationship between PMS and menstrual attitudes. Method: Data were collected from 417 female college students in Seoul and Gyeonggi-do area during the period from the 6th of September to the 15th of October in 2004. Collected data were analysed using the SPSS WIN 11.0. Result: The results of this study were as follows: 1) Perceived subjective symptoms were clustered endogenous depressive feature($2.76{\pm}.97$), anxiety($2.76{\pm}1.09$), and impulsivity($2.72{\pm}1.02$). 2) PMS was significantly different according to the general characteristics of grade(F=3.414, p=.018), major(F=2.755, P=.004), menarche age(F=5.910, p=.003), pain(F=7.886, p=.000), family history(F=5.366, p=.005). 3) Menstrual attitudes was significantly different according to the general characteristics of grade(F=3.315, p=.020), major(F=3.813, P=.000), religion(F=6.313, p=.000), interval of menstruation(F=2.834, p=.016), pain(F=3.059, p=.048), family history(F=3.062, p=.048). 4) Menstrual attitudes and PMS were in a positive correlation with each other (r=.112, p=.002). Conclusion: This results showed that there is a significant correlation between PMS and menstrual attitudes. For further research, it is recommended to identity major factors affecting PMS and the relationships between them and various subjects.

• Asian-Australasian Journal of Animal Sciences
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• v.31 no.7
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• pp.1036-1042
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• 2018

Meat quality is a very difficult term to define because it means different things to different people. When purchasing beef, consumers in the United States are likely to consider color, price, marbling level, subcutaneous fat trim, or cut thickness when determining the quality of beef. Once consumers have consumed the product, meat quality becomes exponentially more difficult to define due to the subjective nature of this term. Traditionally, tenderness, juiciness, and flavor have been considered the three most important factors that determine the palatability of beef. Therefore, American meat science beef research and industry focus has turned to measuring and quantifying these 3 attributes objectively and subjectively, and to determining what influences them. In reviewing the scientific literature, attempting to meaningfully summarize the findings of the thousands of studies on beef meat quality is impossible due to the inherent differences in the objective and methodology of studies. Fortunately, the United States beef industry and their national trade association, the National Cattlemen's Beef Association (NCBA), have conducted numerous surveys and audits to characterize the quality of the products being produced and marketed by their cattlemen and the palatability perceptions of their consumers. The data produced by these studies is quite large and impossible to summarize in entirety in this review. Therefore, this review concentrates on the most important attributes that determine the value of a beef carcass and objectively measured and consumer-assessed palatability characteristics of fresh meat from these carcasses from 1987 through 2010.

• Korean Journal of Health Education and Promotion
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• v.22 no.2
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• pp.47-61
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• 2005

Objectives: This study aimed to investigate the relationship between consumption of sweet drinks and foods with accompanying oral hygiene health behaviors, and their condition of oral hygiene rural residents who are expected to have relatively poor oral hygiene compared to their urban counterparts. Methods: The 384 subjects, who are aged over 40 and have taken dental examination by dentists in health branches in 6 Myouns, Kongju city, Chungchongnamdo Province during the period between June 1st through 31st, 2004, were asked about dental health behaviors and subjective symptoms using questionnaires. Results and Conclusions: Based on dental health behavior according to sweet beverage and food, the dental health behavior was desirable in both sexes for 'almost daily drink' concerning sweet beverages and 'almost never eat' concerning sweet food, with no statistical significance. As for oral conditions, the groups who responded to 'almost daily drink/eat' for sweet beverages and food had the highest rate of non-treated teeth, lost teeth, DMFT and CPITN, with no statistical significance. Multiple logistic regression analysis with the consumption frequency of sweet foods as explanatory variables and 5 factors of oral conditions as dependent variables, revealed that there was no statistical significance in the oral conditions according to the consumption frequency of sweet drinks while, as for sweet drinks, there was a significant difference to the group who answered as 'occasional gum bleeding' in the case of 'almost daily eat.' responders(OR= 2.33, 95% CI=1.42-3.81, p<0.05).