• Land and Housing Review
• /
• v.13 no.1
• /
• pp.39-54
• /
• 2022

Using the 1st to 13th rounds of occupational history data of the Korea Employment Information Service's Youth Panel (YP2007), this study explores the trends and characteristics of the youth labor market in Seoul. We further empirically investigated the job duration and wage determinants of youth employed in Seoul. The results confirm that workers who have a higher income and a higher consistency with their majors are less likely to leave. In addition, we find that workers in full-time, householders, or labor unions have a higher income if they are men and work in large companies. In particular, compared to the reference group (appropriate academic background, appropriate skill), mismatches in the lack of education and skill showed a wage increase effect of 4.9% and 5.5%, respectively. For the major consistency, the wage of the matched major group is 3.8% higher than the non-matched major group.

• Korean Journal of Culture and Social Issue
• /
• v.14 no.1_spc
• /
• pp.223-253
• /
• 2008

This article examines the cost of pressure to achieve in Korea, which is the theme of the special issue focusing on the psychological dynamics and factors influencing delinquent behavior among Korea adolescents. This article reviews empirical studies of delinquent behavior among Korean adolescent and articulate policy and programs necessary to prevent the rising trend. First, in order to prevent delinquent behavior and enhance their self-efficacy, programs need to be developed to allow them to succeed in non-academic areas. Second, adolescents who engage in delinquent behavior are likely to experience problems in interpersonal, such as parental rejection, social exclusion from friends and hostility from teachers. Third, adolescents delinquent behaviors are influenced by negative parental socialization practices, delinquent behavior of their peers, moral disengagement and their previous participation in delinquent behavior. Fourth, the importance of indigenous psychological approach to increase the quality of life for adolescents who engage in delinquent behavior is outlined.

• Korean Journal of Social Welfare
• /
• v.61 no.4
• /
• pp.191-215
• /
• 2009

The purposes of this study were to investigate the factors that influence the school drop-out of North Korean refugee youth and to generate recommendations for social work practice and the resettlement policies of the government to ameliorate the high school drop-out rate among North Korean refugee youth. This study examined the effects of the environmental factors such as the quality of parenting practice, peer attachment and the kind of school a youngster attends, and personal characteristics such as self-respect and acculturation stress level, and academic efficacy on the school drop-out intention. Gender, duration of stay in Korea, family economic status were established as control variables. The drop-out intention was used as a proxy for drop-out behavior. The study findings indicate that the personal characteristics such as gender, self-respect and acculturation stress, academic efficacy were the significant influencing factors, whereas environmental factors such as quality of parenting, peer attachment did not exert any statistically significant effect on the drop-out intention. At the conclusion, the implications of the study findings for research, social work practice and the government policies were discussed.

• The Korean Journal of Zoology
• /
• v.32 no.1
• /
• pp.34-39
• /
• 1989

Ouabain, strychnine sulfate, caffeine sodium benzoate and chlorpromazine hydrochloride were introduced intraperitoneally into male mice for 7, 14 and 21 days to induce the changes in the relative percentages of lactate dehydrogenase isozymes. The five isozymes in brain, heart and kidney tissues were electrophoresed on cellulose acetate strip and subjected to densitometry. Ouabain caused a drastic increase of B$_4$isozymes only in brain tissues. The two stimulants altered the relative percentages of $A_4$and B$_4$isozymes conspicuously in brain tissues, whereas virtually no redistributions of five isozymes were occurred by the depressant except B$_4$isozymes in brain and heart tissues. On the basis of these observations, it might be suggested that the changes in intracellular concentration of sodium and calcium ions are not the cause of the isozyme redistributions and that Organization of plasma membrane could be one of the factors involved in the tissue specificity of lactate dehydrogenase isozymes in vertebrates.

• The Korean Journal of Nuclear Medicine Technology
• /
• v.26 no.2
• /
• pp.43-47
• /
• 2022

Purpose Radioimmunoassay implement quality control by systematizing the internal quality control system for quality assurance of test results. This study aims to contribute to the quality assurance of radioimmunoassay results and to implement systematic quality control by measuring the average CV of internal quality control and external quality control by plenty of institutions for reference when setting the laboratory's own acceptable range. Materials and Methods We measured the average CV of internal quality control and the bounce rate of more than 10.0% for a total of 42 items from October 2020 to December 2021. According to the CV result, we classified and compared the upper group (5.0% or less), the middle group (5.0~10.0%) and the lower group (10.0% or more). The bounce rate of 10.0% or more was compared by classifying the item of five or more institutions into tumor markers, thyroid hormones and other hormones. The average CV was measured by the overall average and standard deviation of the external quality control results for 28 items from the first quarter to the fourth quarter of 2021. In addition, the average CV was measured by the overall average and standard deviation of the proficiency results between institutions for 13 items in the first half and the second half of 2021. The average CV of internal quality control and external quality control was compared by item so we compared and analyzed the items that implement well to quality control and the items that require attention to quality control. Results As a result of measuring the precision average of internal quality control for 42 items of six institutions, the top group (5.0% or less) are Ferritin, HGH, SHBG, and 25-OH-VitD, while the bottom group (≤10.0%) are cortisol, ATA, AMA, renin, and estradiol. When comparing more than 10.0% bounce rate of CV for tumor markers, CA-125 (6.7%), CA-19-9 (9.8%) implemented well, while SCC-Ag (24.3%), CA-15-3 (26.7%) were among the items that require attention to control. As a result of comparing the bounce rate of more than 10.0% of CV for thyroid hormones examination, free T4 (2.1%), T3 (9.3%) showed excellent performance and AMA (39.6%), ATA (51.6%) required attention to control. When comparing the bounce rate of 10.0% or more of CV for other hormones, IGF-1 (8.8%), FSH (9.1%), prolactin (9.2%) showed excellent performance, however estradiol (37.3%), testosterone (37.7%), cortisol (44.4%) required attention to control. As a result of measuring the average CV of the whole institutions participating at external quality control for 28 items, HGH and SCC-Ag were included in the top group (≤10.0%), however ATA, estradiol, TSI, and thyroglobulin included in bottom group (≥30.0%). Conclusion As a result of evaluating 42 items of six institutions, the average CV was 3.7~12.2% showing a 3.3 times difference between the upper group and the lower group. Cortisol, ATA, AMA, Renin and estradiol tests with high CV will require continuous improvement activities to improve precision. In addition, we measured and compared the overall average CV of the internal quality control, the external quality control and the proficiency between institutions participating of six institutions for 41 items excluding HBs-Ab. As a result, ATA, AMA, Renin and estradiol belong to the same subgroup so we require attention to control and consider setting a higher acceptable range. It is recommended to set and control the acceptable range standard of internal quality control CV in consideration of many things in the laboratory due to the different reagents and instruments, and the results vary depending on the test's proficiency and quality control materials. It is thought that the accuracy and reliability of radioimmunoassay results can be improved if systematic quality control is implemented based on the set acceptable range.

• Applied Microscopy
• /
• v.33 no.1
• /
• pp.25-39
• /
• 2003

Cell differentiation and ultrastructural characteristics in the seminiferous epithelium of Myotis macrodactylus was investigated with the light and electron microscopes. Spermatogenesis has begun at April and finished at September. The nuclei of A spermatogonia (dark and pale type of spermatogonia) were oval, applied to the basal lamina, and surrounded by Sertoli cells. By comparison with other types of spermatogonia, the cell and nucleus of B type of spermatogonium is globular and larger than A types of spermatogonia. The nucleolus appears as a coarse and touches the nuclear membrane. The cell and nucleus of spermatocytes was globular and larger, but primary spematocyte is larger than secondary spermatocyte. Spermiogenesis was divided according to the level of fine structural difference, into Golgi, cap, acrosomal, maturation and spermiation phases; Golgi, cap, acrosomal and spermiation phases were further subdivided into steps of early and late phase respectively, and maturation phase has only one step. Hence, the spermiogenesis has been divided into a total of nine phases. In the change of karyoplasm, the chromatin granules are condensed at late Golgi phase and completed at spermiation phase. The sperm tail began to develop in early Golgi phase and completed in spermiation phase. The process of degeneration of spermatogenic cells in the seminiferous tubules was continually observed from October, before the beginning of hibernation, to hibernation phase (November, December, January, February, March). Immatured spermatogenic cells in the seminiferous tubules have been engulfed by phagocytosis of Sertoli cells during period of degeneration. It is deduced that the adaptative strategy serves as the mechanism to regulate the effective use of energy to prepare for long hibernation and regulation of breeding cycle.

• Environmental and Resource Economics Review
• /
• v.13 no.3
• /
• pp.387-415
• /
• 2004

This paper is intended to valuate air quality of the Seoul Metropolitan Area using triple-bound dichotomous choice (TBDC) contingent valuation method (CVM), supplemented by open-ended (OE) questionnaires. In the OE questionnaires, some respondents would state their willingness to pay (WTP) outside the limits of the WTP interval. It implies that WTP estimates based on the customary dichotomous choice (DC) questionnaires can be biased. We argue that the TBDC-CVM refined with OE questions is more efficient, because the latter helps purge the former of corrupted data that may have been collected by the TBDC interview process.

• Proceedings of the KAIS Fall Conference
• /
• 2011.12b
• /
• pp.457-460
• /
• 2011

안드레아 팔라디오는 후기 르네상스 시대의 대표적인 건축가로서 서양 건축사에 있어서 가장 유명한건축가의 한 사람이다. 그가 세상을 떠난 1580년 이후 그의 작품은 여러 번에 걸쳐 부활되었다. 팔라디오의 건축 작품과 저서는 서양 건축의 흐름에 영향을 끼쳐서 현재까지 이르고 있다. 오늘날 팔라디오가 인기를 모으고 있는 이유는 이탈리아 북부 지방에 남아 있는 그의 작품들을 직접 가서 보기 쉽다는 점에 기인한다. 여기에 더해서 팔라디오의 건축 작품이 놓여 있는 자연환경이나 도시적 상황이 우수하다는 점도 중요한 요인이다. 팔라디오의 빌라나 팔라초, 교회 그리고 기타 공공 건물 등 많은 작품을 남김으로써 그의 훌륭함을 찬양할 수 있을 것이다. 그러나 이보다도 그의 작품은 양보다는 질에 있어서 고전 부활 양식 이라는 독특한 건축 접근 방식에 대한 가장 훌륭한 예가 될 것이다. 무엇이 팔라디오의 작품을 먼 이국의 땅에 유행시켰나 하는 문제는 그의 건축의 우수성에 우선 기인하겠지만 또 다른 원인이 있음을 발견할 수 있었다. 르네상스 후기의 인문학 발전과 더불어 팔라디오의 작품에 세계성을 부여한 요소를 미디어의 발전과 연결하여 분석하여 보았다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2003.11b
• /
• pp.1245-1248
• /
• 2003

과거 정보화가 인류 문명의 기반인 물리공간으로부터 이탈하려는 패러다임이라면 유비쿼터스는 물리공간으로 회귀(back to the physical space)하려는 패러다임이다. 정보화가 '거리(street)의 소멸'을 불러왔다면 유비쿼터스화는 거리의 지능적 부활을 가져오는 것이다[1]. 이를 통해 유비쿼터스는 인간 삶의 질을 높일 수 있는 진정한 정보화의 길이다. 본 논문에서는 유비쿼터스에 대한 일반적인 정의와 환경 그리고 네트워크 구조에 대해서 간단히 살펴본 후 유비쿼터스 네트워크에서 적용될 수 있는 무선 통신 기술 중 가장 관심을 가지고 있는 기술들을 나누어 그 특징들과 장점, 단점에 대해서 살펴본다. 또한 이 유비쿼터스 네트워크에 대한 발전 방향에 대해서 간단히 고려해본다.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.14 no.6
• /
• pp.2819-2827
• /
• 2013

The purpose of his study was to analyze the environmental and the medical factors of prematurely discharged patients in a rehabilitation hospital. The subjects were 107 inpatients. The data were collected using self-report questionnaire and analyzed using the SPSS Win 19.0 program. In result, Firstly, general selection of hospitals was the 'Recommendation' 35.5%, Environmental dissatisfaction factors are Hospital facilities 37.4%. Hospital choice is the highest 'Acquaintances' 23.4%. Second, the lowest group about professionalism, kindness, and description of explanation on satisfaction in survey is group of care workers for the sick. The highest group is physical and occupational therapist. Third, the satisfaction regarding medical procedures of administrative work, waiting time and medical expenses is the highest normal. Hospital facilities in one of the highest factors in environmental dissatisfaction is can be considered as an element of patient departure because of not much number of nervous special hospitals. Medical dissatisfaction factors is the lowest satisfaction of care worker even if those spend much time. this is the focus leaving hospital. Therefore, factors care workers on service satisfaction and dissatisfaction in analysis and problem solving is considered that the need to find ways to improve the quality of service care workers.