• 한국주거학회논문집
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• 제28권2호
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• pp.23-33
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• 2017

This study was aimed to assess accessibility situation of pedestrian environment of University-C focusing on accessibility of manual wheelchair users and to develop accessibility campus map. During March and April 2016, barrierfree design application situation of pedestrian environment and building entrances were investigated using a structured checklist and a digital distance and slope meter. Major findings are as follow. (1) Except one case, widths of all pedestrian routes (both sidewalk and non-sidewalk routes) exceeded 2 meters. (2) As for sidewalk and driveway contact point condition, there were many spots lacking curb ramp or alterative ramp that are accessible for manual wheelchair users. (3) More than half of non-sidewalk pedestrian routes did not have bollard to separate pedestrian and vehicle flows, and more than 92% of the bollards installed were too close for wheelchair users to pass or too far to prevent vehicle access. (4) More than 59 percent of the building entrances were found impossible for manual wheelchair users to access without any assistance, and one third of the buildings did not have any single accessible entrance. Based on the study findings, campus accessibility map was developed by the researchers and disseminated through university homepage. Using the campus accessibility map, users can plan their accessible paths ahead the trip.

• 기본간호학회지
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• 제19권3호
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• pp.322-333
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• 2012

Purpose: The purpose of this study was to evaluate the effects of a newly developed Introduction to Clinical Nursing (ICN) program on critical thinking skills, communication competence, self-efficacy, and clinical performance self-confidence in nursing students in their third year. Methods: One group pre-test and post-test design was used with three data collection time points (pre-test, post-test1 and post-test2). Participants were 74 third year nursing students approaching their first clinical practicum. The new program included (a) simulated clinical encounters regarding situations of assessing hospitalized patents and caring for patients with oxygenation needs, (b) objective structured clinical examination of skills, (c) lectures, and (e) field trips. Data were analyzed using paired t-tests. Results: After the ICN course, critical thinking skills(significant only between pretest and post-test2), communication competence, and clinical performance self-confidence improved significantly (p<.05). There was no improvement in the self-efficacy total score but there was significant improvement in the subscale, self-regulatory efficacy. Conclusions: The study results indicate that the ICN course may be effective in increasing critical thinking skills, communication competence, and clinical performance self-confidence in nursing students. However, the effect size was very small and modifications of this program should be considered to develop more cost-effective educational programs.

• 지역사회간호학회지
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• 제24권3호
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• pp.264-272
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• 2013

Purpose: The aim of this study was to investigate coping styles for dysmenorrhea and explore factors related with their coping styles according to different health loci of control in middle schoolers. Methods: Data were collected by using a structured questionnaire for 572 students from three middle schools in Seoul from March 22 to April 2, 2010. The measurement included menstrual distress, coping method questionnaire and health locus of control. The data were analyzed by using t-test, ANOVA, Pearson's correlation coefficients, and multiple regression analysis. Results: Middle school students used the active behavioral coping style more often than the avoidance style. There was a significant difference in means within each coping style including levels of stress, levels of health, and regular exercise. There were also significant correlations between each coping style and health locus of control. Regression analyses indicated that the health locus of control factor is the most powerful factor in each coping style. Conclusion: We observed that various coping methods are used for dysmenorrhea in middle school students. However, the active behavioral coping style is dominant in such a condition. Based on these results, we need to develop a health locus of control to improve coping styles for dysmenorrhea.

• 반도체디스플레이기술학회지
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• 제21권1호
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• pp.95-102
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• 2022

Since the organic light-emitting diodes (OLEDs) have been widely investigated as next-generation displays, it has been successfully commercialized as a flexible and rollable display. However, there is still wide room and demand to improve the device characteristics such as power efficiency and lifetime. To solve this issue, there has been a wide research effort, and among them, the internal and the external light extraction techniques have been attracted in this research field by its fascinating characteristic of material independence. In this study, a micro-nano composite structured external light extraction layer was demonstrated. A reactive ion etching (RIE) process was performed on the surfaces of hexagonally packed hemisphere micro-lens array (MLA) and randomly distributed sphere diffusing films to form micro-nano composite structures. Random nanostructures of different sizes were fabricated by controlling the processing time of the O₂ / CHF₃ plasma. The fabricated device using a micro-nano composite external light extraction layer showed 1.38X improved external quantum efficiency compared to the reference device. The results prove that the external light extraction efficiency is improved by applying the micro-nano composite structure on conventional MLA fabricated through a simple process.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2005년도 춘계학술대회
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• pp.306-309
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• 2005

One of the most critical issues in sol id oxide fuel cell (SOFC)running on hydrocarbon fuels is the risk of carbon formation from the fuel gas. The simple method to reduce the risk of carbon formation from the reactions is to add steam to the fuel stream, leading to the carbon gasification react ion. However, the addition of steam to fuel is not appropriate for the auxiliary power unit (APU) and potable power generation (PPG) systems due to an increase of complexity and bulkiness. In this regard, many researchers have focused on so-called 'direct methane' operation of SOFC, which works with dry methane without coking. However, coking can be suppressed only by the operation with a high current density, which may be a drawback especially for the APU and PPG systems. The single chamber fuel cell (SC-SOFC) is a novel simplification of the conventional SOFC into which a premixed fuel/air mixture is introduced. It relies on the selectivity of the anode and cathode catalysts to generate a chemical potential gradient across the cell. Moreover it allows compact and seal-free stack design. In this study, we fabricated honeycomb type mixed-gas fuel cell (MGFC) which has advantages of stacking to the axial direction and increasing volume power density. Honeycomb-structured SOFC with four channels was prepared by dry pressing method. Two alternative channels were coated with electrolyte and cathode slurry in order to make cathodic reaction sites. We will discuss that the anode supported honeycomb type cell running on mixed gas condition.

• 한국산학기술학회논문지
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• 제21권11호
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• pp.193-200
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• 2020

본 연구는 고등학생의 구강 악습관과 스트레스가 턱관절 장애에 미치는 영향을 분석하고자 울산지역 고등학교에 재학 중인 학생 중에서 연구 참여에 동의한 339명을 대상으로 구조화된 설문지를 이용하여 시행되었다. 자료 분석은 SPSS Statistics ver 18.0 for windows 프로그램을 이용하여 t-test, one-way ANOVA, 상관분석, 회귀분석을 실시하였다. 연구 결과, 턱관절 장애지수는 구강 악습관 지수, 학교생활 스트레스 지수, 가정생활 스트레스 지수, 대인관계 스트레스 지수, 자아 영역 스트레스 지수와 정적인 상관관계가 있었다(p≤0.01). 구강 악습관 및 각종 스트레스가 턱관절 장애에 미치는 영향을 분석하기 위하여 단계선택형 다중회귀분석을 실시한 결과, 구강 악습관 지수가 턱관절 장애지수에 가장 많은 영향을 미치고 있었고 자아 영역에서 높은 스트레스를 나타내는 학생일수록 턱관절 장애지수가 높았으며 이는 유의한 차이가 있는 것으로 나타났다(p≤0.01). 즉, 구강 악습관이 지속되고 스트레스에 적절하게 대처하지 못하는 학생일수록 성인이 되었을 때 턱관절 장애를 경험하는 것으로 예측할 수 있었다. 이는 Y(턱관절 장애지수)=2.563+.550X₁(구강악습관지수)+.134X₂(자아영역 스트레스지수) 의 회귀식으로 나타났다. 따라서 청소년기에 구강 악습관과 스트레스가 성인으로 이어지는 턱관절 장애의 잠재적인 원인이 될 수 있음을 인식하고 적극적으로 구강 악습관을 개선하고 스트레스에 적절하게 대처할 수 있는 방안이 필요하다고 본다.

• 인간행동과 음악연구
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• 제9권1호
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• pp.21-36
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• 2012

본 연구에서는 음악치료 수퍼비전 형태, 즉 개인 수퍼비전과 소집단 수퍼비전 형태에 따른 수퍼바이지의 수퍼비전 만족도에 차이가 있는지를 알아보고자 했다. 그에 따라 서울 소재 대학교 음악치료학과 석사과정 재학생 중 임상 수퍼비전을 받고 있는 학생 26명을 대상으로 설문지 조사가 실시되었다. 대상자별로 개인 수퍼비전과 집단 수퍼비전이 각각 4회씩 이루어졌고, 수퍼비전 실시 후 수퍼비전 만족도 질문지(Supervisory Satisfactory Questionnaire)를 사용해 각 수퍼비전에 대한 만족도를 평가하였다. 연구 결과, 개인 수퍼비전에 대한 만족도 평균 점수가 집단 수퍼비전 만족도보다 높은 것으로 나타났지만, 두 조건 사이에 통계적으로 유의미한 차이는 없는 것으로 나타났다. 그러나 만족도 세부 항목 중 필요성 충족과 전체적인 수퍼비전에 대한 만족도를 묻는 질문에서는 통계적으로 유의한 차이가 나타났다. 대상자들의 자기보고 내용에 있어 개인 수퍼비전의 경우에는 제공되는 시간의 충분함과 수퍼바이저의 개별적이고 긍정적인 피드백에 대한 서술이 많았던 반면, 집단 수퍼비전의 경우에는 동료들 간의 긍정적인 교류와 시간 부족에 대한 서술이 많았다. 이와 같이 개인 수퍼비전과 집단 수퍼비전에서 충족될 수 있는 다른 필요와 장점이 있음을 보여주는 본 연구 결과를 바탕으로, 국내 음악치료 교육 환경에서 적용될 수 있는 수퍼비전 형태에 대한 고려사항이 제안되었고, 추후 연구에 대한 필요성이 제시되었다.

• Asian Pacific Journal of Cancer Prevention
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• 제14권12호
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• pp.7127-7131
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• 2013

The primary aim of this study was to evaluate the relationship of single nucleotide polymorphisms (SNPs) in ribosomal protein SA (RPSA) gene with colorectal cancer (CRC). A case-control study including 388 controls and 387 patients with CRC was conducted in a Chinese population. Information about socio-demography and living behavior factors was collected by a structured questionnaire. Three SNPs (rs2133579, rs2269349, rs7641291) in RPSA gene were genotyped by Illumina SnapShot method. Multiple logistic regression models were used for assessing the joint effects between tea consumption and SNPs on CRC. The subjects with rs2269349 CC genotype had a decreased risk for CRC (OR=0.60; 95%CI = 0.37-0.99), compared with TT/CT genotype after adjustment for covariates. A similar association of rs2269349 with rectal cancer was observed (OR=0.49; 95%CI=0.24-1.00). Further analyses indicated that this SNP could modify the protective effect of tea drinking on CRC. Among the subjects with rs2269349 TT/CT or rs2133579 AA/GA, there was a marginal significantly lower risk of CRC (OR and 95%CI: 0.63 and 0.39-1.01 for rs2269349; 0.64 and 0.40-1.02 for rs2133579) in tea-drinking subjects in comparison to non-tea-drinking subjects. Mutants in the RPSA gene might be associated with genetic susceptibility to CRC and influence the protective effect of tea consumption in the Chinese population.

• 생물정신의학
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• 제19권2호
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• pp.106-113
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• 2012

Objectives : The purpose of this study is to investigate the relationship between the triallelic serotonin transporter gene and stressful life events to determine their effect on depression with alcohol dependence. Methods : Ninety-five hospitalized patients with alcohol dependence (73 male, 22 female) were enrolled in this study. Thirty-two (33.7%) of the total patients were diagnosed with major depressive disorder and dysthymic disorder by Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders-IV. The characteristics of stress were evaluated using the stressful life events scale, and depressive symptoms were assessed using the depression scale (Beck Depression Inventory, BDI). Alcoholism with depression (n = 32) and alcoholism without depression (n = 63) were genotyped for the triallelic serotonin transporter gene ($L_A$ : higher expressing allele, $L_G$/S : lower expressing allele). Results : There was no significant difference in the allele frequency between the depression group and the non-depression group (${\chi}^2$ = 0.345, p = 0.619). $L_G$/S alleles had more comorbid depression in the higher score of stressful life events scale [Mental-Haenszel (MH)-${\chi}^2$ = 4.477, p = 0.034]. But there was no significant difference in the comorbidity according to the scores from the stressful life event scale in the $L_A$ alleles (MH-${\chi}^2$ = 0.741, p = 0.399). In the results, alcohol-dependent individuals with $L_G$/S alleles had more comorbid depression than those with $L_A$ alleles when they had experienced severe stressful life events (MH-odds ratio = 2.699, p = 0.028). Conclusions : These results suggest that there is no direct relationship between triallelic serotonin transporter gene and depression in the alcohol dependent patients. But alcohol dependent individuals with the lower expressing alleles of the serotonin transporter gene were more susceptible to depression than those with the higher expressing alleles in response to stressful life events.

• 한국산림과학회지
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• 제104권3호
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• pp.443-453
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• 2015

1922년 임업시험장으로 조성된 홍릉숲은 한국 임업연구의 요람이면서 도시민에게 휴식의 장소를 제공하는 도시숲으로서의 역할도 수행하고 있다. 본 연구는 홍릉숲을 대상으로 이용객 모니터링을 통해 효율적인 홍릉숲 관리방안을 도출하였으며, 이를 위해 주말 홍릉숲을 방문한 750명을 대상으로 설문조사를 수행하였다. 설문조사 결과 이용객 연령대는 고르게 분포하고 있었으며 홍릉숲 인근지역에 거주하는 비율이 높았다. 또한 휴양목적으로 방문하는 비중이 높았으며, 홍릉숲을 시험림보다는 쉼터로 인식하는 경향이 나타났다. 마지막으로 이용객들은 전반적으로 높은 만족도를 보였으며 향후 홍릉숲 보전을 위한 적극 홍보와 교육의 필요성을 제기하였다. 이와 같은 결과는 홍릉숲의 관리 향상을 위해 다음과 같은 시사점을 제공한다. 첫째, 홍릉숲이 시험림과 도시숲 기능을 동시에 수행하기 위해서는 숲 해설 프로그램의 확대와 홍보를 통해 홍릉숲의 가치와 중요성을 더욱 적극적으로 알려 이용객들의 인식을 제고하여야 한다. 둘째, 주말 이용객을 대상으로 모니터링 수행을 통해 수요를 추정하고, 이를 바탕으로 이용객 관리 프로그램을 적용해야 한다. 결론적으로 홍릉숲의 엄격한 자원보전과 만족스러운 휴양기회 제공이라는 사회적 수요를 조화롭게 달성할 수 있도록 이용객 관리시스템을 구축하고 이를 자원과 서비스 관리에 반영하는 것이 필요할 것이다.