• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.1
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• pp.660-671
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• 2021

This paper analyzed the research trends of juvenile gambling, which is increasing due to recent changes in the internet environment. The number of domestic studies on juvenile gambling has increased, but there are few studies that analyzed both degrees and academic papers in a more comprehensive manner than addiction to the Internet, games, and drugs related to youth. The current state of juvenile gambling can lead to secondary crimes, such as illegal loans and thefts for gambling funds beyond the level of addiction, school violence and money extortion, which have been a major shock to Korean society. Therefore, it is urgent to prepare social measures because the age of adolescents who are exposed to gambling is becoming lower. Accordingly, this study analyzed 52 dissertations, 86 academic papers, and three other research reports published in Korea from 2003 to March 2020. As a result, quantitative research, research subjects, and research topics were concentrated, and there was a limit to generalization. In addition, these results will provide rich information to future studies by confirming the academic characteristics according to the times and interdisciplinary research trends that transcend individual science areas.

• Journal of Preventive Medicine and Public Health
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• v.18 no.1
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• pp.25-39
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• 1985

This study was conducted to assess the morbidity and medical facilities utilization patterns of the residents in urban low income area. Study population included 2,002 family members of 468 households in the low income area (LA) of Nam-san 4 Dong, Jung Gu of Taegu city and 1,709 family members of 374 households in surrounding neighbourhood control area (CA). Well trained nursing school students interviewed mainly with housewives according to the pretested questionaire between July 1 and July 30, 1984. Age-sex distribution of the study population in LA was similar to that in CA. The average monthly income of a household in LA was 236,000 won and 356,000 won in CA. Educational level of the residents in LA was lower than that in CA; average years of school education of the 20 years old or above in LA was 6.9 years compared with 8.5 years in CA. The average family members per room in LA was 2.6 and 2.2 in CA, and proportion of Medicaid program beneficiary was 29.4% in LA and 1.9% in CA. Prevalence rate of illness during 15-day period was 131 per 1,000 population in LA and 71 in CA(p<0.01) and that of the chronic illness for 1 year was 134 per 1,000 population in LA and 89 in CA(p<0.01). The most common illness experienced during 15 days was respiratory disease(24.0% in LA ana 29.8% in CA) and followed by gastro-intestinal disorders(21.0% in LA, 20.6% in CA). Injury or poisoning was 10.3% in LA and 3.3% in CA. Castro-intestinal disorder was the most common chronic illness in both LA (22.7%) and CA (21.7%), and followed by musculoskeletal disease in LA and neuralgia in CA. Mean activity restricted days among the persons with illness during 15-day period was 4.0 days in LA and 2.2 days in CA. Among persons with illness during 15 days, 17.9% in LA and 11.6% in CA did not seek any medical treatment and the most frequently utilized medical facility was pharmacy in LA (35.5%) and local clinic or hospital OPD in CA (42.1%). Among persons with chronic illness, 15.2% in LA and 9.2% in CA did not seek for medical treatment, and residents in LA as well as residents in CA utilized local clinic or hospital OPD more frequently than pharmacy or drugstores, especially those who have medical insurance. The most common reason for not treating illness experienced during 15-day period and chronic illness was economical constraint in both LA and CA. The higher prevalence rate of illness during 15-day period and chronic illness in LA than that in CA seems to be highly correlated with their lower economic status and educational level and crowded living condition. The utilization pattern of medical facilities was associated with the medical security status. A program to improve the economic status and living condition should be integrated with the health program to promote the health of the population in low income area.

• Korean Journal of Animal Reproduction
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• v.25 no.2
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• pp.139-145
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• 2001

This study was performed to elucidate the patho-physiology of lead acetate-poisoned rats after consecutive oral administrations of the lead. The changes in feed and water intake, gains of body weight, blood pictures and mineral compositions of several organs were observed to measure the effects of lead acetate-poisoning. 1. Compared with control group, every experimental group of which 1,000, 2,000, or 4,000 ppm/kg of lead acetate was administered displayed a gradual decrease in feed intake in dose-dependent manners. 2. After 1,000, 2,000 or 4,000 ppm/kg of lead acetate administration, water intake seemed to decrease in every experimental group in dose-dependent manners. 3. After 1,000, 2,000 or 4,000 ppm/kg of lead acetate administration, body weight decreased in every experimental group in dose-dependent manners. 4. After 1000, 2,000 or 4,000 ppm/kg of lead acetate administration, the PLT values and numbers of RBC and WBC significantly increased after lead acetate administration, but the values of Hb and PCV were lower than those of control group's. 5. After 2,000 or 4,000 ppm/kg of lead acetate administration, the levels of Pb, Mn, Fe, Pb and Zn in the livers were lowered, but the levels of Pb, Mn, Fe, Pb and Zn in the kidneys.

• Korean Journal of Poultry Science
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• v.33 no.3
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• pp.233-238
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• 2006

In order to study the effect of feeding rare earth(RE) on growth of broiler chicks, feed conversion ratio, and probable harmfulness of feeding high levels of RE, two feeding trials with broiler chicks were conducted; one using a commercial broiler compound feed and the other using a self mixed feed excluding any growth stimulating feed additives. The the first trial used three hundred sixty of one day old Cobb broiler chicks for six levels of dietary supplementation of RE : 0, 100, 200, 400, 800 and 1,600 mg/kg. There were significant effect of RE stimulating broiler chick growth and improving feed conversion ratio, The dietary supplementation of RE at a level of 100 mg/kg was the best of all and increased body weight gain by 8.9% (p<0.05). Chicks fed RE at a level of 1,600 mg/kg grew as good as chicks fed feeds without RE and did not show my abnormalities. The second feeding trial was conducted in the same manner as the first trial using Ross broiler chicks and self-mixed experimental diets supplemented with RE at levels of 0, 50, 100 and 150 mg/kg. Differently from Results of the first trial, body weight gain and feed conversion ratio of were the best at the level of 50 mg/kg RE supplementation(p<0.05). In this trial all the birds fed RE showed significantly lower ratio of abdominal fat against live weight than those of the control group birds. Overall, it can be said that dietary supplementation of RE will improve broiler growth and feed conversion ratio and the proper dietary level would be $50\sim100mg/kg$. These results suggested that the proper level of RE for broiler chicks would be 50 to 100 mg/kg and its effectiveness is varied depending upon RE mixture. There appears abdominal fat of broiler chicks is decreased by feeding RE but further investigation is in need.

• Journal of Nutrition and Health
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• v.22 no.3
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• pp.185-193
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• 1989

This study was performed to investigate lead(Pb) detoxification with different dietary protein levels and detoxifying periods in Pb poisoned rats. Forty nine male rats of Sprague-Dawley strain weighing 114$\pm$4g were used and they were fed 1% Pb-15% casein diet ad libitum for 2 weeks. After sacrifying 7 animals as control group, remaining forty two rats were blocked into 6 groups according to body weight. Three groups were fed each detoxifying diet(5%, 15% or 40% casein diet without Pb) for 1 week and the other 3 groups were fed same diets for 3 weeks. The results obtained were summerized as follows ; 1) Liver and kidney weight, bone weight, and bone length were increased with increasing dietary protein level and detoxifying period. 2) Hematocrit values were recovered to normal level during detoxifiying periods but hemoglobin contents in detoxifying diet groups showed no significant difference from those in control group. 3)Pb contents in blood were decreased with increasing dietary protein level, and Pb contents in liver were significantly decreased in high protein diet groups. Pb contents in kidney were significantly decreased during detoxifying period compared to control group, but no significant difference was shown within the detoxifying diet groups. Pb contents in femur were significantly decreased after 3 weeks of detoxifying period but no difference was shown with different dietary protein level. 4) Urinary Pb excretions were significantly increased with increasing dietary protein level. Fecal Pb excretions were remarkably decreased after 3 weeks of detoxifying period, but no difference was showen in fecal Pb excretions with different dietary protein level. Above results suggest that high protein diet improves Pb detoxification by increasing urinary Pb excretion.

• The Journal of the Korea Contents Association
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• v.18 no.2
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• pp.248-261
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• 2018

This study, the Fear of Missing Out Scale (FoMO Scale) developed by Przybylski et al. (2013) was adapted and validated to the Korean culture. 3-factors were constructed through EFA and item content analysis. In the CFA, 3 models were constructed to verify the fit of the model. Compared the goodness of fit, 3-factors model with 8 items proved to be the most appropriate. Sub-factors extracted through the characteristic context and rationale of Korean culture are 'belonging needs', 'extrinsic motivation', and 'relative deprivation'. K-FoMO scale and the reliability level of each sub-factor were good. Convergent validity was assessed by significant correlation the K-FoMO scores with life satisfaction, positive emotions, negative emotions, and SNS addiction proneness. Discriminant validity was assessed by low correlation with gratitude. At the end, limitation and suggestions for the future research were discussed.

• Korean Journal of Environmental Agriculture
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• v.31 no.3
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• pp.264-270
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• 2012

BACKGROUND: The purpose of this study was that serum metabolic and hematological variables were measured to investigate the detoxication effect of Taraxacum mongolicum extract on male albino rat exposed with lead and mercury. METHODS AND RESULTS: For this study, Pb and Hg-exposed( 50 ppm) albino rats was used, and the treatments were carried out in three doses of 100 mg/kg, 200 mg/kg and 500 mg/kg as dry weight of T. mongolicum extract. T. mongolicum extract could improved the body weight gain and feed efficiency ratio, except to food intake. The levels of biochemical factors elevated by Pb-Hg mix exposure, which are Bilirubin, Alkaline phosphatase(ALP), glutamic oxaloacetate transaminase(GOT), glutamic pyruvate transaminase (GPT), lactate dehydrogenase(LDH), ceatinine and blood urea nitrogen(BUN), were significantly reduced in all treated groups as compared to Pb-Hg mix exposure alone. T. mongolicum extract was shown to suppress the accumulation of Hg and Pb in serum by dose dependent manner. CONCLUSION: Therefore, this study suggest that T. mongolicum extract might have the potential effect to minimize the toxic effects of Pb and Hg.

• Korean Journal of Social Welfare
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• v.37
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• pp.67-88
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• 1999

The purpose of this study was to identify the proportion of the population with the alcohol use disorder among the Korean adults. To the author's knowledge, this study was the first social work article to survey the prevalence of the alcohol use disorder using the randomly selected sample. The survey instrument included the Alcohol Use Disorder Identification Test, the Brief Michigan Alcoholism Screening Test. and the Korean Alcoholism Screening Test to identify the rates of problem drinkers and alcoholics. The instrument also included items to ask the respondents' drinking frequencies, drinking amounts, and heavy drinking. The findings of the study indicated that Koreans had severe alcohol problems. 322 percent of the respondents were identified as those who have experienced drinking-related problems in the past year. This study found 4.2 percent of the respondents as alcoholics and estimated that 1.34 million of the Korean adult population were alcoholics. This study concludes that social workers should use screening tools to early identify clients with alcohol problems and develop effective programs to assist those clients and their families. Finally this study provide suggestions for future studies.

• Journal of the Korean Society of Physical Medicine
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• v.15 no.3
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• pp.43-50
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• 2020

PURPOSE: To investigate the correlation between sleep quality, neck and shoulder pain, neck and shoulder disability, headache, and smartphone addiction in adults, as well as factors affecting sleep disorders in adults. METHODS: A total of 112 adults in their 20s were recruited for participation in this study. This study measured Pearson's correlation of sleep quality, neck and shoulder pain, neck and shoulder disability, headache and smartphone addiction. Logistic regression analysis (sleep disorder, without sleep disorder adults), was performed to analyze factors affecting sleep disorders. RESULTS: Sleep quality index was positively correlated with shoulder pain and disability index(SPADI)-pain score, SPADI-global score and smartphone addiction score. There was a significant difference in SPADI-pain score between the group with sleep disorders and the group without sleep disorders. Shoulder pain and disability were identified as factors affecting sleep disorders. The group with sleep disorders showed 1.088 times more shoulder pain than the group without sleep disorders, and the group with sleep disorders showed 1.006 times higher frequency of shoulder disorders than the group without sleep disorders. CONCLUSION: The results of the present study indicate that as sleep quality worsens, shoulder pain, disability, and smartphone addiction get worse. The group with sleep disorders had significantly increased shoulder pain compared to the group without sleep disorders. We also found that shoulder pain and disability were factors affecting sleep quality. Comparison between intervention method is warranted to better understand adults with sleep disorders.

• Journal of Digital Convergence
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• v.15 no.1
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• pp.1-9
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• 2017

The purpose of this study is to investigate the differences of the mobile phone overuse by gender and school levels. For this study, 565 middle and high school students in Gyeonggi province answered the self-report survey, 253 students were extracted as an overuse group, and the data were analyzed by one-way MANOVA. The results showed that 'daily disturbance' was a common major factor in gender and school level difference and 'school life disturbance', 'with draw' and 'tolerance' were added in school level difference. Based on the results, this study suggested users' characteristics such as gender and school level should be taken into prevention and treatment of mobile phone overuse.