• Journal of the East Asian Society of Dietary Life
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• v.13 no.3
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• pp.155-166
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• 2003

This study was conducted to investigate the dietary behavior and health-related lifestyles of university students in Incheon arear Self administered questionnaires were collected ken 179 food and nutrition major and non-major students. Statistical data analysis was completed using a SPSS v.10.0 program. The results are summarized as follows: The average weight, height, BMI and PIBW of the major and non-major male and female students were 69.89kg, 172.89cm, 23.4 and 106.49 ; 67.27kg, 173.98cm, 22.2 and 101.35 ; 50.61kg, 161.20cm, 19.53 and 92.25 ; 53.77kg, 161.53cm, 20.56 and 97.18, respectively. The breakfast skipping ratio of the subjects were very high, which was mainly due to the reason“lack of time”More than 75% of male students and 61% of female students responded to have lunch at university canteens or restaurants around campus regularly. About 56% of male students and 68% of female students responded to have dinner irregularly, which mainly caused by the reasons“irregularity of lecture”and “appointment with friends”. The ratio of snacks intake of the subjects were high; Ramyun was the snack item taken the most by the male students and fruits and cookies by the female ones. More than 50% male students and 2% of female students were smokers. A half of students dunk alcohol once or twice a week. The dietary behaviors and health-related lifestyles between major and non-major male students tended to be very similar. The major female students showed more health-oriented dietary behaviors in comparison with the non-major ones. Therefore, they should have a major-oriented and practically organized nutritional education program to correct their dietary behaviors and health-related lifestyles fur health.

• Journal of the Korea Fashion and Costume Design Association
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• v.20 no.1
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• pp.93-107
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• 2018

A questionnaire survey was conducted on male and female college students living in Busan in May 2015 to study customer types and purchasing behaviors based on the benefit sought from undergarments. This study used a total of 460 data reports collected from 203 male and 257 female college students. The results of this study were as follows. First, the undergarment benefits sought were divided into material and function, harmony of outerwear and underwear and design. Consumers were categorized into function seekers, brand and design seekers, and undergarment indifferent customers. In addition, while male college students were likely to be function seekers, female college students were mostly brand and design seekers. Second, both male and female respondents showcased significant differences in the undergarment benefits sought depending on their customer type. Based on the customer type, male college students showed a greater difference in the undergarment benefits they sought when compared to their female counterparts, and marked differences were found in male respondents' undergarment material and function factors and female respondents' harmony factor of outerwear and underwear. Based on their sex, a significant difference in the harmony factor of outerwear and undergarments was observed. Third, after examining the purchasing behavior influenced by the customer type, this study found that both male and female students had undergarment purchasing behavior differences depending on their customer type, while function seekers and design seekers were likely to exhibit similar behaviors in purchasing undergarments regardless of their sex, except for their preferred image and purchasing method of undergarments. However, among the indifferent group of customers, there were significant differences depending on their sex.

• Child Health Nursing Research
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• v.4 no.1
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• pp.31-44
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• 1998

In our time the parent's role is changing from sexually differentiated to androgynous pattern. Mother's interction with infant includes caring and father's interaction especially have play. Father and mother share the caring and play because they have complementary nature. Infants have a tendency to show more positive responses to their fathers than mothers in play situations. For that reason we can help the promotion of father's interaction with his infant through ascertaining patterns of father-infant play interaction. This study was to find out patterns of father-infant play interaction in order to improve the Interaction between father and infant. Data was video-taped from 6 fathers and infants who were healthy and first-timed and 7-11 weeks old in their houses. I used Father-Infant Play Interaction Scale that was applied to father instead of mother as a care-giver. The scale was checked up by experts in this field for content validity and the reliability was 0.95 in this study. The results were as follows : 1. Father's play behaviors were the patterns of responses about infant's cue. The mean score was 33.16(SD, 9.11), This means they come up to the standard level of responses about infant's cue. 2. Infant's play behaviors were the patterns of responses about father's cue. The mean score was 7.00(SD,3.10). This means they get the higher level of responses about father's cue. 3. The patterns of simultaneous responses occured together between father and infant. The mean score was 9.58 (SD, 3.96). This means they reach the standard level of simultaneous responses between father and infant. 4. The patterns of interactional behaviors occured interpersonally between father and infant. The mean score was 49.75(SD, 15.80). This means they interact on the standard level of play interaction. In view of the results father's play interaction seems to reveal an average level and play patterns are similar to mother's. In order to ascertain definitely patterns of father-infant play interaction we need further research which has more subjects and variables to have important effects.

• The Korean Journal of Physiology and Pharmacology
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• v.21 no.1
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• pp.27-36
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• 2017

Angelicae Gigantis Radix (AGR, Angelica gigas) has been used for a long time as a traditional folk medicine in Korea and oriental countries. Decursinol angelate (DCA) is structurally isomeric decursin, one of the major components of AGR. This study was performed to confirm whether DCA augments pentobarbital-induced sleeping behaviors via the activation of $GABA_A$-ergic systems in animals. Oral administration of DCA (10, 25 and 50 mg/kg) markedly suppressed spontaneous locomotor activity. DCA also prolonged sleeping time, and decreased the sleep latency by pentobarbital (42 mg/kg), in a dose-dependent manner, similar to muscimol, both at the hypnotic (42 mg/kg) and sub-hypnotic (28 mg/kg) dosages. Especially, DCA increased the number of sleeping animals in the sub-hypnotic dosage. DCA (50 mg/kg, p.o.) itself modulated sleep architectures; DCA reduced the counts of sleep/wake cycles. At the same time, DCA increased total sleep time, but not non-rapid eye movement (NREM) and rapid eye movement (REM) sleep. In the molecular experiments. DCA (0.001, 0.01 and $0.1{\mu}g/ml$) increased intracellular Cl- influx level in hypothalamic primary cultured neuronal cells of rats. In addition, DCA increased the protein expression of glutamic acid decarboxylase ($GAD_{65/67}$) and $GABA_A$ receptors subtypes. Taken together, these results suggest that DCA potentiates pentobarbital-induced sleeping behaviors through the activation of $GABA_A$-ergic systems, and can be useful in the treatment of insomnia.

• Korea journal of population studies
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• v.27 no.1
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• pp.31-55
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• 2004

The elder abuse draws an increasing concern as the elderly population grows rapidly, and increasing demands to provide long-term care to the impaired elderly are imposed on the families. This study compares Korean American elders' and their adult children's perceptions of possible elder abuse under care-giving situation, and related help-seeking behaviors using five scenarios developed by the author. The subjects consist of ten elders and their ten adult children including daughters-in-law who live in Los Angeles, the USA. Content analysis reveals very similar help-seeking behaviors of the two generations within the family despite the substanally generational difference towards the perceptions of elder abuse under care-giving situation. Mann-Whitney test shows a significant difference in the perceptions of elder abuse between the elderly and their adult children. It means that the elderly are substantially less likely to perceive a given situation as abusive than their adult children would. But there is no significant difference between the elderly and their adult children in their intended use of formal sources of help. Implications for gerontological social work practice and program development are discussed.

• Progress in Superconductivity and Cryogenics
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• v.17 no.3
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• pp.13-17
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• 2015

In superconducting coil applications particularly in wet wound coils, coated conductor (CC) tapes are subjected to different type of stresses. These include hoop stress acting along the length of the CC tape and the Lorentz force acting perpendicular to the CC tape's surface. Since the latter is commonly associated with delamination problem of multi-layered CC tapes, more understanding and attention on the delamination phenomena induced in the case of coil applications are needed. Difference on the coefficient of thermal expansion (CTE) of each constituent layer of the CC tape, the bobbin, and the impregnating materials is the main causes of delamination in CC tapes when subjected to thermal cycling. The CC tape might also experience cyclic loading due to the energizing scheme (on - off) during operation. In the design of degradation-free superconducting coils, therefore, characterization of the delamination behaviors including mechanism and strength in REBCO CC tapes becomes critical. In this study, transverse tensile tests were conducted under different loading conditions using different size of upper anvils on the GdBCO CC tapes. The mechanical and electromechanical delamination strength behaviors of the CC tapes under transverse tensile loading were examined and a two-parameter Weibull distribution analysis was conducted in statistical aspects. As a result, the CC tape showed similar range of mechanical delamination strength regardless of cross-head speed adopted. On the other hand, cyclic loading might have affected the CC tape in both upper anvil sizes adopted.

• Korean Journal of Health Education and Promotion
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• v.27 no.4
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• pp.29-38
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• 2010

Objectives: This study purports to comparatively study health condition, health behaviors, and health care utilization of Koreans living in Korea and in the US, and then, to analyze the factors influencing them. Methods: The collected data were analyzed on the basis of the 2005 Korea National Health and Nutrition Examination Survey. Of 25,196 adults aged 19 or older, 7,802 respondents to health behavior survey and 5,526 respondents to physical examination survey. The analyzed data of the Korean Americans were the results of the California Health Interview Survey (CHIS) conducted by the UCLA Center for Health Policy Research in 2005. This study analyzed the responses of 645 known Korean respondents to the 2005 CHIS. Results: In regard to differences in overall health condition between the two groups, it was found that both the male and female Korean Americans thought their own overall health conditions were relatively poor compared to Koreans, especially in relation to diabetes and cardiovascular diseases. For smoking status considered as one of health behavior factors, smokers of the Koreans account for 46.1% which is higher than that of the Korean Americans and the proportion of the Koreans smoking daily is also at least two times higher than that of the Korean Americans. Similarly, for alcohol drinking, the Koreans showed higher drinking experience rate and no less than three times higher drinking frequency than that of Korean Americans. Conclusion: It is expected that this study will contribute greatly to solving health problems among foreign immigrants and overseas Koreans in future by clarifying any differences in health status and health behaviors resulting from sociocultural differences despite of similar genetic factors.

• Journal of Korea Foundry Society
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• v.27 no.4
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• pp.153-158
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• 2007

Molten metal flow in vacuum die casting was characterized by a numerical analysis. The VOF method was used to simulate the filling behaviors of molten metal during filling process. The various vacuum degrees of no vacuum(760 mmHg), 650, 500, 250 and 60mmHg were artificially applied in cavity. And the filling behaviors of molten metal with the applied vacuum conditions were simulated and compared with those of experiment. The results showed that molten metal was partially filled into cavity when vacuum was applied and the filling length of molten metal in cavity was increased with increasing applied reduced pressure in cavity. Also, the simulated filling behaviors of molten metal were apparently similar to those of experiment, indicating the numerical analysis developed in this study was highly effective. Through the result of fluid flow simulation, both relation equations of filling length and filling velocity with the variation of pressure conditions in cavity were calculated respectively and the internal gas contents of casting was significantly reduced by the modification of vacuum gate system.

• Composites Research
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• v.14 no.2
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• pp.1-7
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• 2001

The studies on the formulation and curing behaviors of Kevlar/Epoxy prepreg for NOSE CONE of aircraft were presented in this paper. Dielectrometer and differential scanning calorimeter were used in order to check the curing behaviors. This prepreg showed the lowest ionic viscosity around $120^{\circ}C$, and then the ionic viscosity was gradually increased up to $200^{\circ}C$. This indicated that the curing reaction of this prepreg started at $120^{\circ}C$ and the molecular weight was increased by the accelerated thermal cross-linking reaction. The loss factor and tan $\delta$ values were also measured and discussed. The loss factor behaviors of Kevlar/Epoxy prepreg, which is related to the fluidity of matrix, were fecund to be similar with that of ionic viscosity. The thermal reaction properties of this prepreg were also studied by differential scanning calorimeter.

• Journal of the Korean Society for information Management
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• v.25 no.4
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• pp.25-42
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• 2008

The research was conducted to investigate factors that facilitate users' finding books by analyzing classifications in public library and bookstore. This research was based on the assumption that the users' needs and information behaviors are similar in both public library and bookstore. The main purpose of this study is not to recommend classifying public library collections the way a bookstore does, but to figure out what makes the users' book finding more convenient by analyzing the classifications. To carry out the research, users' book finding in public library and classifications of public library and bookstore are analyzed. Then, a survey was conducted to investigate users' book finding behaviors, degree of convenience in finding books according to different classifications and the causes of the convenience. The results of the research showed that bookstore's classification was more convenient for the users in finding books.