• Journal of agricultural medicine and community health
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• v.22 no.1
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• pp.19-26
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• 1997

The purpose of this study was to analyze the physical development and health status of 5 year-old children for more effective health management of preschool children. This study carried out examinations of height, weight, hemoglobin, visual acuity & dental examination for 5 years-old preschool children in Kwang-ju up, Kwang-ju gun, Kyunggi-Do from January to February, 1996. For height and weight, the data were compared with the 1985's Korean standard and the hemoglobin and visual acuity data were compared with the Korean standard. The results were as follows. The average height for 5 year-old male children was 106.3${\pm}$4.7(cm) and that of 5 year-old female children was 105.3${\pm}$4.3(cm). Sixty seven point eight percent of male subjects registered below the 50th percentile for the Korean standard height and 79.5% of the female subjects registered below the 50th percentile for female. The average weight for 5 year-old children was 18.6${\pm}$2.6(kg) for females. Also, it is estimated that obese subjects totaled 2.7%. For the visual acuity, 18.0% of subjects had weak vision in the left eye and 16.9% in the right eye. As a result, it was advised that these children undergo further examination. It was remarkable that there were so many anemic children. Children with a hemoglobin content of less than 11.9(g/dl) totaled 47.8%. It is anticipated that the results of this study will contribute to the on-going evaluation and subsequent planning for the children health management program within the health promotion program of public health center in Kwang-ju gun.

• Journal of Digital Convergence
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• v.11 no.8
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• pp.273-279
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• 2013

The purpose of the study was to present basic data to evaluation of the spatial resolution for exposure class(EC) in computed radiography(CR) by using the modulation transfer function(MTF). In this study, MTF was measured the edge method by using image plate(IP) of $100{\mu}mm$ pixels. A standard beam quality RQA5 based on an international electro-technical commission(IEC) standard was used to perform the X-ray imaging studies. Digital imaging began to set the sensitivity to EC 50, 100, 200, 300, 400, 600, 800, 1200 in X-ray irradiated to IP. The MTF 50% and 10% in the final images was analysis by using an authorized image analysis program the Origin 8.0 and the image J. As a results, the EC 200 was the best spatial resolution at MTF 50% ($1.979{\pm}0.114lp/mm$) and MTF 10% ($3.932{\pm}0.041$). Therefore, the EC 200 could be useful for the diagnosis of diseases that require high spatial resolution such as fractures.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.51 no.1
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• pp.102-110
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• 2015

The characteristics of aquatic light fields are generally reflected in the visual systems of fishes inhabiting them. Therefore, research on light sensitivity of fish is useful to explain the correlation between the visual function and habitat, behavior and distribution of fish. Rockfish is an important species in coastal ecology and also one of the main species for culturing in Korea. To make a contribution on the maintenance of the fish resources and understanding the ecology of the rockfish, the visual spectral sensitivities of the dark-adapted rockfishes were measured in the range of visible light (405~660 nm) using a light source of light-emitting diodes (LEDs). In order to assess electrophysiological response of the fish, the ERGs (electroretinograms) of the dark-adapted rockfishes were recorded on a data logger (12 bits) and a laptop computer. Juvenile (n=5; weight: $20.3{\pm}5.2g$; total length: $10.3{\pm}0.7cm$) and adult (n=5; weight: $87.8{\pm}21.8g$; total length: $18.1{\pm}1.3cm$) rockfishes were used in experiment. The visual threshold of juvenile and adult rockfish were 11.66 (log quanta/$cm^2/s$) and 11.81 (log quanta/$cm^2/s$) in 574 nm, respectively. The peak wavelength of the spectral sensitivity in the dark-adapted juvenile and adult rockfish was commonly 551 nm (series of green color). Collectively, these results demonstrate that the rockfish has suitable visual capabilities for inhabiting coastal water in Korea.

• The Korean Journal of Community Living Science
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• v.19 no.1
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• pp.135-144
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• 2008

This study was carried out to investigate alcohol consumption and dietary behavior of college students in the Chungbuk area. Alcohol consumption, dietary behavior, food preferences, food intake frequency and one-day dietary records were surveyed using questionnaires given to 387 college students. The mean heights and weights of subjects were $175.0{\pm}5.6cm\;and\;69.1{\pm}9.3kg$ in males, and $162.5{\pm}4.8cm\;and\;52.3{\pm}7.9kg$ in females. About 89% of subjects (male 90.6%, female 87.3%) consumed alcohol, and most of them had experienced their first drink due to peer pressure in high school. Usually the subjects were drinking with their friends 1-2 times/week and the amount of alcohol consumed was one or more bottles of Soju. More than 69% of the subjects had tried to quit drinking but more efficient campaigns promoting non-drinking behavior are still necessary since the recognition of the hazards of alcohol seemed not enough to convince college students to stop. The dietary behavior of college students was generally inadequate showing indifference to dietary balance, irregularity of meals, and skipping breakfast. It was more inadequate in the frequent drinking group. In the drinking group, while the food intake frequency scores for milk & dairy products, and fruits were significantly lower, the scores for fast food, frozen food and instant ramen were significantly higher. The mean DVS and DDS were found to be 12.61 and 3.93, respectively, and there was no significant difference shown by alcohol consumption. The dietary management of college student needs to be improved in many aspects. It is further troubled by alcohol consumption. Therefore, a nutrition education program including information on the hazards of alcohol and responsible drinking should be developed and provided.

• Journal of the Korea Convergence Society
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• v.8 no.8
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• pp.307-314
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• 2017

The Purpose of this study was to identify the level of learned helplessness and the relationship among variables affecting their learned helplessness. We have carried out research on 799 students. and collected data were analyzed using t-test, ANOVA, scheffe test, pearson's correlation coefficient. As a result, the mean score of learned helplessness was 2.55 (${\pm}.61$), Of the sub-domains, 'lack of control' was the highest with 2.85 (${\pm}.44$). And It was found that the helplessness was high in the case of poor fellowship, low academic achievement and poor family cooperation. These results were significantly correlated. Through the follow-up research, it is necessary to carry out management to reduce the learned helplessness by developing differentiated program that can reduce the learned helplessness of university students by identifying variables that can explain the learned helplessness of university students.

• Journal of Digital Convergence
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• v.12 no.6
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• pp.519-526
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• 2014

The purpose of this study was investigate nursing needs of heart disease patients depending on whether or not readmitted. Who had diagnosed heart disease and admitted on a general hospital was collected as a self-administered questionnaire method from March to June 2012. Collected data were analyzed through the SPSS 18.0 program. The average of total nursing needs is $4.12{\pm}.49$ point in patient who were not in readmission, and $3.89{\pm}.63$ point in patient joined readmission, there were significant differenced(p=.046). Therapeutic nursing needs are higher than others in nursing needs, in the both groups. Each rank and sub-regions is also different nursing needs according to readmission in two group. Physical, Social-emotional, educational and therapeutic nursing needs was correlated each other in depth. Therefore, focusing on patient's nursing needs according to patient's characteristics are required to perform nursing.

• Journal of Digital Convergence
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• v.16 no.10
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• pp.389-398
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• 2018

This study aimed to investigate the knowledge, compliance and affecting factors of the cough etiquette to prevent the respiratory infectious disease transmission. Data were collected 250 self reporting questionnaires above 19 years old adult from Aug. 13th to Sep. 19th 2018. 213 questionnaires were analyzed statistically. In the results, the score was converted in terms of 100 points, knowledge of the cough etiquette was average $70.99{\pm}19.92$ points, compliance was $70.63{\pm}10.25$ points. Knowledge and compliance were statistically positive significant correlation, In the multiple regression analysis, the affecting factors were gender, usually carry a handkerchief, usually carry a portable tissue paper, average number of handwashes per day, know about cough etiquette, knowledge of cough etiquette. Therefore, it is necessary to develop and apply an educational program that reflects the affecting factors of cough etiquette in this study result. The higher level of cough etiquette performance will help prevent respiratory infection transmission.

• Korean Journal of Applied Biomechanics
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• v.24 no.2
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• pp.95-101
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• 2014

The purpose of this study was to investigate the training and detraining effects of a 8-week water exercise on lower extremities coordination during obstacle gait in the female elderly. Eight elderly participants (age: $76.58{\pm}4.97$ yrs, height: $148.88{\pm}7.19$ cm, body mass: $56.62{\pm}6.82$ kg, and leg length: $82.36{\pm}2.98$ cm), who stayed at the Seoul K welfare center, were recruited for this study. All participants had no history of orthopedic abnormality within the past 1 year and completed the aquatic exercise program which lasted for 8 weeks. To identify the training and detraining effect of 8 weeks of water exercise, a 3-D motion analysis with 7 infrared cameras and one force plate sampling frequency set at 100 Hz and 1,000 Hz, respectively, was performed. A two-way ANOVA was performed to find training and detraining effects among diferent obstacle heights. In this study significant level was set at .05. Significant training effects of LTS (lead foot thigh and shank) coordination in all obstacle height were found (p<.05). It is also found that the training effect of LTS remained 37%, 58%, and 25% in obstacle height of 30%, 40%, and 50%, respectively. Lead foot showed the greater detraining effect of coordination compared with trail foot, and SF (shank and foot) coordination revealed better detraining effects of coordination compare with TS (thigh and shank) in both feet. Based on the findings, a 8 week water exercise give an positive effects to the elderly in terms of segment cooperation which potentially helps reducing their accident falls. The magnitude of detraining may also help the elderly to find the retraining moment.

• The Korean Journal of Pesticide Science
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• v.17 no.4
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• pp.307-313
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• 2013

This study was carried out to investigate the residual characteristics of fungicide azoxystrobin and difenoconazole in Prunus mume fruits, and establish pre-harvest residue limits (PHRL) based on dissipation and biological half-lives of fungicide residues. The fungicides were sprayed onto the crop at recommended dosage once and 3 times in 7 days interval, respectively. The samples were harvested at 0, 1, 2, 4, 6, 8, 10, 12 and 14 days after treatment. These residual pesticides were extracted with QuEChERS method, clean-up with $NH_2$ SPE cartridge, and residues were analyzed by HPLC/DAD and GLC/ECD, respectively. Method quantitative limits (MQL) of azoxystrobin were 0.03 mg $kg^{-1}$ and of difenoconazole were 0.006 mg $kg^{-1}$. Average recovery were $93.2{\pm}2.49%$, $85.5{\pm}1.97%$ for azoxystrobin at fortification levels at 0.3 and 1.5 mg $kg^{-1}$, and $100.8{\pm}6.74%$, $87.6{\pm}9.92%$ for difenoconazole at fortification levels at 0.06 and 0.3 mg $kg^{-1}$, respectively. The biological half-lives of azoxystrobin were 5.9 and 5.2 days at recommended dosage once and 3 times in 7 days interval, respectively. The biological half-lives of difenoconazole were 9.3 and 8.0 days at recommended dosage once and 3 times in 7 days interval, respectively. The PHRL of azoxystrobin and difenoconazole were recommended as 5.32 and 1.64 mg $kg^{-1}$ for 10 days before harvest, respectively.

• Korean Journal of Occupational Health Nursing
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• v.27 no.2
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• pp.99-108
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• 2018

Purpose: This study aimed to identify the factors affecting stress among resort workers. Methods: The subjects of the study were 199 resort workers in a province of Korea. Data were collected using self-administered questionnaires that were completed between November 16, 2017 and January 19, 2018. The questionnaire consisted of stress and health promoting behavior and its sub-areas such as health responsibilities, physical activity, nutrition, spiritual growth, interpersonal relations, and stress management. Using the SPSS 23.0 program, descriptive statistics, t-test, ANOVA, correlation analysis, and multiple regression analysis were conducted. Results: The mean score of the stress levels of resort workers was $2.3{\pm}0.98$ out of a maximum score of 5. A multiple regression analysis revealed that gender, spiritual growth, and stress management were statistically significant factors in the model (p<.001), with an explanatory power of 35%. Conclusion: Stress levels were considerably high in resort workers. This study suggests that nursing interventions are needed to reduce stress levels and enhance health promoting behavior, especially spiritual growth and stress management, at both an individual and organizational level.