• Journal of Nutrition and Health
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• 제36권5호
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• pp.491-499
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• 2003

Selenium is a strong antioxidant trace mineral, scavenging free radicals. The prevalence of chronic degenerative diseases is increasing in Korean adults with increasing age. The increased cell damage from free radicals has been implicated in the etiology of these diseases, and evidence is accumulating that the low selenium status that comes with advanced aged is involved in the prevalence of age-associated diseases. However, little is known about the selenium status of Koreans, its age-related change and its relationship to dietary nutrient intake. In this study, the serum selenium levels of healthy adult females according to life cycle and its association with blood albumin levels and nutrient intake were examined. Serum selenium level was measured with the Huwo research reactor using the neutron activation analysis method (NAA). The overall proportion of women with selenium deficiency, serum selenium concentrations below 7.0 $\mu\textrm{g}$/dl, was 9.4%. The average serum selenium levels were 12.39 $\mu\textrm{g}$/dl, 9.45 $\mu\textrm{g}$/dl and 9.16 $\mu\textrm{g}$/dl in the young adult, middle-aged and elderly groups, respectively, showing a reduction of selenium status with advancing age. Selenium deficiency was seen only in the elderly group. Generally, serum selenium levels positively or negatively correlated with nutrient intake, but these association patterns differed depending on the age. The nutrients that showed positive correlations with selenium levels were proteins and phosphate in the young adult group (p < 0.05, p < 0.05), and total calcium, potassium and vegetable-origin calcium in the middle-aged group. Vitamin C and fiber were the negative correlated nutrients with serum selenium levels in the elderly group (p < 0.05, p < 0.05). Multiple stepwise regression analysis of the determining factors responsible for selenium status showed that age and serum albumin levels were important factors which explained up to 26.9% variances in serum selenium levels. The average selenium concentrations of Korean adult female subjects were above the deficiency levels in all three age groups. There was a tendency toward decreasing selenium levels as the age of the subjects increased. The factors with the strongest in-fluence on selenium status in healthy adult Korean females were age and serum protein status. (Korean J Nutrition 36(5): 491~499, 2003)

• Journal of the Korean Data and Information Science Society
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• 제27권3호
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• pp.763-772
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• 2016

본 연구는 대학생의 자기효능감, 애착이 SNS 중독경향성에 미치는 영향을 파악하기 위해 시도하였다. 연구기간은 2013년 8월 26일부터 2013년 11월10일까지였으며, 연구대상은 D시 일개 대학생 303명이었다. 연구도구는 SNS 중독경향성, 자기효능감, 성인애착도구를 사용하였으며, 자료분석은 SPSS 프로그램을 사용하였다. 본 연구 결과는 다음과 같다. 일반적 특성에 따른 SNS 중독경향성은 성별, 사용기간, 일평균 사용 시간, 주당 평균 접속률에서 유의한 차이가 있었다. SNS 중독경향성은 성인애착, 성인애착의 하위 영역인 회피애착과 불안애착에서 각각 양의 상관관계가 있었으며, 자기효능감과는 음의 상관관계를 나타내었다. 본 연구의 결과를 통하여 대학생의 SNS 중독경향성은 SNS 사용 시간 및 기간이 짧을수록 감소하며, 불안애착이 클수록 증가하고, 자기효능감이 클수록 감소함을 알 수 있었다.

• 디지털융복합연구
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• 제17권5호
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• pp.295-301
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• 2019

본 연구의 목적은 대학생의 불안정애착, 우울, 삶의 만족도가 SNS 중독 경향성에 미치는 영향을 검증하는데 있다. 본 연구에서는 서울과 대전, 경북 지역의 3개 대학에 재학 중인 학부생들을 대상으로 애착유형, 우울, 삶의 만족도, SNS 중독경향 척도를 사용하여 설문조사를 실시했다. 총 대학생 310명의 자료를 바탕으로 다중회귀로 분석 결과, 삶의 만족도를 제외한, 애착불안(${\beta}=.32$, p<.001), 성별의 더미변수인 남자(${\beta}=-.25$, p<.001), 우울(${\beta}=.17$, p=.003)이 유의한 영향을 미치는 것으로 나타났으며, 설명력은 총 26%이었다. 본 연구결과는 대학생들을 대상으로 한 SNS 중독 경향성의 이해와 예방 및 치료에 도움이 될 수 있을 것이다.

• 대한치과교정학회지
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• 제17권1호
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• pp.63-72
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• 1987

This is to investigate the difference between craniofacial correlation of Angle's class III malocclusion and that of normal occlusion. For this investigation, 28 adult males and famales, who have class III malocclusion, and 35 adult males and 46 adult famals., who have normal occlusion were selected to measure actual dimension of cranial base and to investigate ratio of various parts of maxillofacial skeleton against cranial base. Class III malocclusion were, also , classified based on SNA and SNB angle in normal range. Results were as follows. 1. In class III malocclusion, actual dimension of cranial base were appeared to be less than normal occlusion in both sex. 2. In class III malocclusion, values were less than normal occlusion in BN/ptm-A in both sex, but had no significance between two. 3. In class III malocclusion, ramal inclination, mandible inclination, BN/Go-Pog, lower genial angle were appeared to be greater. Thus, characteristic mandibular protrusive appearance of class III malocclusion was due to relative ratio and morphologic characteristic of mandibular body dimension against cranial base. 4. In class III malocclusion, upper incisors were labially tilted and lower incisors were lingually tilted compared to normal occlusion. 5. In typing of class III malocclusion, the most common type was found to be one which maxillas were in normal range, while mandibles were in protrusive tendency.

• 한국심리학회지 : 코칭
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• 제6권2호
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• pp.27-43
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• 2022

본 연구는 대학생의 불안정 성인애착과 스트레스 대처전략의 관계에서 정서인식명확성의 매개효과검증을 목적으로 하였다. 이를 위해, 서울, 경기 지역 소재 4년제 대학교 남학생 182명, 여학생 219명, 총 401명을 대상으로 성인애착 척도, 정서인식명확성 척도, 스트레스 대처전략 척도를 실시하였다. 본 연구의 결과 첫째, 불안정 성인애착과 정서인식명확성, 스트레스 대처전략 관계에서 모두 유의미한 상관관계를 나타냈다. 둘째, 불안정 성인애착과 스트레스 대처전략 관계에서 정서인식명확성의 매개효과를 살펴본 결과, 정서인식명확성은 불안정성인애착(애착불안, 애착회피)과 스트레스 대처전략 관계에서 매개효과가 있는 것으로 나타났다. 이러한 결과를 바탕으로 코칭에서 자신의 정서를 인식하고 수용할 수 있는 정서인식 명확성을 함께 다루는 감정코칭 필요성에 대해 논의하였다.

• 한국도서관정보학회지
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• 제37권4호
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• pp.271-287
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• 2006

본 연구는 공공도서관의 평생교육 기능이 날로 확장되고 있는 상태에서 평생교육을 담당해야 하는 당위성을 공공도서관과 평생교육의 관계를 통해 논거를 제시하였다. 이 논거를 기반으로 해외 및 국내에서 이루어지고 있는 평생교육의 추세와 경향을 교육의 내용. 대상, 연계, 기반시설 등을 고찰해봄으로써 향후 공공도서관에서의 평생교육체제를 확립하는데 필요한 기초자료를 제공하였다.

• Journal of Oral Medicine and Pain
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• 제6권1호
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• pp.57-82
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• 1981

The author had collected the full mouth stone model of 277 persons from 20 ages to 60 ages and studied the attrition pattern of posterior teeth paying attention to the teeth cusps on the stone model. All of the attrition patterns were classified by age, sex and analyzed. The results are followings : 1. Attrition patterns of posterior teeth were divided into 64 forms.(expept 3rd molar) 2. There was no significant difference between right & left. 3. Generally early attrition pattern of younger age and late attriction pattern of older age were more prominent in men being compared with sexual difference. 4. Being compared with age group, early attrition pattern showed decreasing tendency and late attrition pattern showed increasing tendency by aging.

• 대한수의학회지
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• 제11권1호
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• pp.1-39
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• 1971

The purpose of present study was to investigate the possibility to immunize guineapigs and swine against Metastrongylus apri infection by the administration of irradiated infective larvae. Four main experiments were undertaken. Firstly, three groups of infective larvae irradiated at $3{\times}10^4r$, $4{\times}10^4r$, and $5{\times}10^4r$ respectively were inoculated to guineapigs and their immunogenic effects were examined from the clinical, anatomical, and serological viewpoints to decide the optimal dose of X-ray for the atenuation of them. Secondly, the migratory behavior of the larvae irradiated at the optimal dose was compared with that of normal infective larvae. Thirdly, pigs were inoculated with each 5,000 infective larvae irradiated at the optimal dose and the clinical, anatomical and serological responses of them before and after challenge were examined. Fourthly, the heated extract of adult M. apri which had been used as an antigen in the serological examinations was analyzed and compared with that of adult Ascaris suis and of adult Trichuris suis by immunoelectrophoretic method. The results obtained are summerized as follows: 1) The optimal dose of X-ray for the atenuation of the infective larvae which can minimize the pathogenecity but keep the antigenecity of the infective larvae was $5{\times}10^4r$. 2) Guineapigs could become completely resistant to subsequent challenge infection by the administration of 1,000 infective larvae irradiated at $5{\times}10^4r$, without showing any symptom of disease before and after the challenge. 3) There were some indication that guineapigs could acquire complete immunity after they overcome the infection with normal infective larvae. 4) It was shown that, in guineapigs, the $5{\times}10^4r$-irradiated larvae can migrate to the large intestine and mesenteric lymph node within a day, where they stay for as long as 16 days to stimulate the host's immunity. 5) It also was shown that, in guineapigs, the normal infective larvae challenged to resistant guineapigs can migrate to the large intestine and mesenteric lymph node, where they are affected by the immune mechanism of host within 10 days without further migration. 6) Pigs could become partially resistant to subsequant challenge by the administration of 5,000 infective larve irradiated at $5{\times}10^4r$; no clinical symptom occurred after the administration, but milder symptoms of parasitic bronchitis were observable after the challenge infection and fewer number of worms were detected from the lungs at autopsy compared with severe symptoms and much number of worms in control pigs. 7) It was shown that, in pigs, a few of the $5{\times}10^4r$-irradiated larvae can migrate to the lungs, where they stay for as long as 104 days in stunted and sterile states; their body-lengths were short and their uteri developted no eggs. 8) There was evidence that the male larvae were more susceptible to X-ray than the female larvae. 9) Antibodies relating to the administration with $5{\times}10^4r$-irradiated or normal larvae were detected from the sera of both guineapigs and pigs by means of indirect haemagglutination and agar diffusion precipitin tests. Relatively higher antibody titers were recorded by the former test, but precipitin bands were demonstrable only when the positive sera were concentrated in one tenth of original volume in the later one. 10) The antibody titers of pig sera began to rose on 14 days, kept their peak during the period from 14 th day to 21st day, and fell to a low level on 28 days after the administration of $5{\times}10^4r$ or normal infective larvae. 11) A slight increase in gamma globublin of the pig sera occurred following the administration. The gamma globulin level showed a tendency to fluctuate in acordance with the antibody level. 12) A marked eosionophilia occurred in pigs on 7 or 14 days following the administration. The eosinophil count showed the same tendency to fluctuate as the gamma globulin did. 13) It was shown that the serum antibodies detected by the heated extract of adult Metastrongylus apri react crossly with the heated extract of adult Ascaris suis but not with that of adult Trichuris suis in indirect haemagglutination and agar diffusion preciption reactions. 14) The heated extract of adult Metastrongylus apri could he divided into 9 antigenic components by immunoelectrophoresis, one (arc 4) of which was shown to be common to both extracts of adult Ascaris suis and adult Trichuris suis, and the other one (arc 9) to only the extract of adult Ascaris suis.

• 대한화장품학회:학술대회논문집
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• 대한화장품학회 2003년도 IFSCC Conference Proceeding Book II
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• pp.424-437
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• 2003

This study was observed the variations in skin color, hydration, sebum content according to age groups at the forehead, both cheeks, and chin in 154 healthy Korean women subjects with aged 30 to 59. We selected four face sites (forehead, right cheek, left cheek, and chin) and measured with chromameter, corneometer, and sebumeter. All statistical analysis was performed on the computer software package SPSS 8.0. There was no significant difference of lightness between facial four regions in age groups but lightness showed to tend to age-related decrease on each regions. Redness and yellowness showed the highest values on chin and forehead respectively but there was no tendency to steady changes according to age variation. Both cheeks showed the highest hydration level and the lowest sebum content compared with forehead and chin in all age groups and there was tendency to age-related changes of sebum content on both cheeks. So we concluded there was decreasing tendency in lightness and sebum content according to the increase of age and there was no age-related change of skin hydration level at least in facial skin.(omitted)

• 경영과정보연구
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• 제16권
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• pp.161-175
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• 2005

In the contemporary society that changes radically, the problems of Juvenile Delinquency shows a tendency to become out-rageous. Organized, intellectual and lower-aged qualitatively together with its qualitative increase to the extent that it may exceed adult crimes, and it is the circumstances that it emerges as an important social problem. Juvenile Delinqurncy is developing into one of the most pressing and critical issues. But, there is no explicit maesure in any country. Above all, Juvenile Delinqurnce is resultd from various factor. For example, personality, family relation, social and environmental problem.