간호·간병통합서비스병동과 일반병동간호사의 감정노동, 직무스트레스 및 간호업무수행

최하나,이미향,Choi, Ha-Na,Lee, Mi Hyang 한국가정간호학회 2018 가정간호학회지 Vol.25 No.2

Purpose: This study aimed to improve nursing practice efficiency by analyzing and comparing the emotional labor, job stress, and performance of nurses in comprehensive nursing care wards and in general wards. Methods: The study surveyed 151 nurses in comprehensive nursing care and general wards. The results were analyzed by ${\chi}$ 2test, ANOVA, and Pearson's correlation coefficient. Results: There were no statistically significant differences in terms of emotional labor, job stress, and performance for the two different types of nurses. Statistically significant positive correlations were noted between job stress and emotional labor, nursing performance, emotional labor, and job stress in the comprehensive nursing care wards, and between job stress and emotional labor, and nursing performance in the general wards. Conclusion: A longer duration of direct nursing in comprehensive nursing care wards tended to increase, emotional labor and job stress. However, the quality of nursing provided to patients tended to improve. Therefore, it is necessary to establish an institutional plan for carrying out efficient nursing while reducing emotional labor and job stress among nurses in comprehensive nursing care wards.

금속 조형 녹청착색 연구 -동과 브론즈의 녹청착색을 중심으로

최하나,장현숙 한국기초조형학회 2022 기초조형학연구 Vol.23 No.1

Blue-green patina is the traditional metal coloring expressed with the colors of greenish brown, green and blue green. The patination using a chemical is to use the natural property of metal and has the advantage of getting natural metal color so that many artists and researchers are using it to express the color of metal moulding. However, it takes a lot of time and effort to create the desired color, and it has a problem that it is difficult to predict the results depending on various environmental conditions. This study was started in order to supplement the problem through the consideration and experiment on patination by using a chemical and through the proposal of a work. As a research method, the types and characteristics of the copper and copper alloy becoming the basis of patination in metal moulding were explained with the patination effect considered by adopting the artists’ works using patination as examples. Moreover, the types and techniques of patination were organized with the patination experiments done. The experiments were done for copper and bronze specimens in the 12 conditions such as the chemical mixing and the heating method to enhance objectivity. The effect of chemical surface treatment on patination was experimented with the result derived. Furthermore, the new application of metal moulding patination was proposed through the various kinds of surface treatment and the works using patination. Accordingly, it is expected to continue and diversify the study on the metal patination technique and achieve usage for expressing the metal moulding color as the base data of metal molding patination. 녹청착색(綠靑着色)은 녹갈색, 녹색, 청록색 등의 색상으로 표현되는 전통적인 착색기법이자(Blue-green patina), 화학약품과 일정량의 부식을 통해 색을 입히는 금속착색기법을 아우르는 단어(Patination)이기도 하다. 약품을 이용한 금속착색은 금속 본연의 성질을 이용하는 것으로 자연스러운금속의 색감을 얻어낼 수 있다는 장점이 있어 많은 작가와 연구자들이 금속 조형의 색채 표현에 활용하고 있다. 하지만 원하는 색을 만들어 내기까지 많은 시간과 노력이 필요하며 다양한 환경조건에 따라 결과를 예측하기 어렵다는 문제를 가진다. 따라서 본 연구는 약품을 이용한 녹청착색의 실험, 작품의 제안을 통해 녹청착색과정에 대한 이해도를 높여 작품 제작에 도움이 되는 것을 목적으로한다. 연구 방법은 금속 조형에서 착색의 바탕이 되는 동과 동합금의 종류 및 특징을 설명하고 착색을 활용한작가들의 작품을 예시로 하여 착색의 효과에 대해 고찰하였다. 그리고 약품 착색의 종류와 기법을 정리하고 염화암모늄, 염화아연, 초산동을 이용한 녹청착색 실험을 진행하였다. 녹청착색 실험은 동과브론즈 시편으로 나누어 약품 배합, 가열법 등 12가지 조건에서 실험하여 객관성을 높이고자 하였으며, 착색 뿐만 아니라 화학적 표면처리 통해 표면 질감이 착색에 미치는 영향에 대해 실험하고 결과를도출하였다. 또한 다양한 표면처리와 착색을 이용한 작품을 통해 금속 조형 착색의 새로운 활용을 제안하였다. 이를 통해 금속 조형의 표면처리와 착색의 기초자료로서 금속 조형 색채 표현에 활용되고다양한 연구가 지속되기를 기대한다.

Neuroprotective Effects of N-Acetylglucosamine against Hydrogen Peroxide-induced Apoptosis in Human Neuronal SK-N-SH Cells by Inhibiting the Activation of Caspase-3, PARP, and p38

최하나,정미자,박제권,박용일 한국식품과학회 2013 Food Science and Biotechnology Vol.22 No.3

Neuroprotective effects of N-acetylglucosamine (GlcNAc), a monosaccharide derivative of glucose, against H2O2-induced neurotoxicity and its underlying mechanism in human SK-N-SH neuroblastoma cells were investigated. Pretreatment of GlcNAc prior to exposure of cells to H2O2stress significantly reduced the H2O2-mediated neuronal cell death and apoptosis. The GlcNAc dose-dependently decreased the level of intracellular reactive oxygen species (ROS) in H2O2-treated cells and also effectively inhibited H2O2-induced apoptotic features such as DNA fragmentation,caspase-3, and poly ADP-ribose polymerase (PARP) cleavages,and p38 phosphorylation. These results suggested that GlcNAc might potentially serve as agents for prevention of neurodegenerative diseases caused by oxidative stresses and this effect may be associated with the suppression of caspase-3, PARP, and p38 activation.

Prosthetic Valve Endocarditis caused by HACEK Organisms: a Case Report and Systematic Review of the Literature

최하나,박기호,박소영,김재민,강현준,박재훈,이미숙 대한감염학회 2017 Infection and Chemotherapy Vol.49 No.4

HACEK is a rare cause of prosthetic valve endocarditis (PVE). We describe 42-year-old male patient who presented with Aggregatibacter aphrophilus PVE and cerebral infarct. A. aphrophilus was isolated from his blood cultures as the sole pathogen, which was confirmed by subsequent 16S rRNA sequencing. He was treated with valve replacement surgery and an 8 week course of pathogen- directed antibiotic therapy and followed for 20 months without recurrence.

신체접촉중심 집단놀이치료가 장애형제를 둔 비장애 형제의 자아탄력성 및 또래유능성에 미치는 효과

최하나,이행숙,한유진 한국아동심리치료학회 2023 한국아동심리치료학회지 Vol.18 No.2

This study aimed to verify the effects of group play therapy with a focus on physical contact on ego-resilience and peer competence in non-disabled siblings with disabled siblings. The participants were 10 non-disabled siblings who wished to participate, selected from disabled siblings attending a child development center in City A. They were divided into an experimental group (5 participants) and a control group (5 participants). The experimental group received group play therapy sessions centered around physical contact once a week for a total of 10 sessions, each lasting 60 minutes. Data analysis was performed using SPSS 26.0 statistical software, and the results of this study are as follows: First, the group play therapy with a focus on physical contact significantly improved the overall ego-resilience scores of non-disabled siblings with disabled siblings, as well as the sub-factors of interpersonal relationships, vitality, emotional control, and optimism in the post-test. Second, the group play therapy with a focus on physical contact significantly enhanced the overall peer competence scores of non-disabled siblings with disabled siblings, as well as the sub-factors of sociability, prosocial behavior, and assertiveness in the post-test. Thus, this study demonstrates the significance of group play therapy with a focus on physical contact in improving ego-resilience and peer competence in non-disabled siblings with disabled siblings, contributing to their healthy internal state and facilitating positive peer relationships.

장애인부모 동료상담사의 현장상담 활동경험에 관한 질적 사례연구

최하나,정종화,김은재 한국장애인재활협회 부설 재활연구소 2018 재활복지 Vol.22 No.2

The purpose of this study is to provide the useful reference to establish the system improvement plan that activates the counseling service quality for the disabled parents peer counselors. The qualitative case study method of Yin (2009) has been used to understand and reflect to the system for the experience of field counseling of the peer counselors for the disabled parents. 10 parents peer counselors for the disabled were proportionately sampled and interviewed about their experiences through a FGI and two individual interviews. The result of the study derived from total 87 abstract concepts and 17 categories and personal motivations for participating and changes from the experience are as follows: the effects of counseling are “mutual sympathy toward the same disability,” “Identity transformation from nobody to somebody who gives hope,” and “another social insurance and social safety network that parents disability make.” The barrier facts for the parents peer counseling activation are: “problem of securing the position of the counseling site” and difficulty in finding the client due to lack of awareness and publicity. “The study suggests four programs to upgrade the parents peer counseling: (1) To secure the position of the counseling site, (2) To reestablish the status as a professional counselor. (3) The need of pokicy supplement and support from the government, (4) The expectancy of creating jobs through the conversion of full-time workers. 본 연구의 목적은 장애인상담현장의 장애인부모동료상담서비스 활성화를 위한 제도개선 방안 및 시스템구축을 위한 기초자료를 제시하기 위하여 장애인부모 동료상담사들의 현장상담경험을 Yin (2009)의 질적 사례연구방법을 활용하여 수행하였다. 이를 위하여 장애인부모 동료상담사 10명을 대상으로 FGI와 개별심층면담을 실시하여 자료를 수집하고 분석했다. 연구결과, 총 87개의 압축개념, 17개의 핵심범주를 도출하였는데 장애인부모동료상담 참여 동기 및 상담효과는 “동병상련의 마음으로 두드림”, “조명 받지 못하던 존재에서 희망을 주는 존재로의 전환”, “장애인부모들이 만드는 또 다른 사회보험이자 사회안전망” 등으로 나타났다. 장애인부모동료상담활성화 장애요인은 “상담현장의 입지확보 및 위상정립의 문제”, “홍보부족으로 인지도가 낮아 내담자 발굴이 어려움” 등으로 나타났으며, 장애인부모동료상담 활성화를 위한 전략은 “현장의 입지확보와 전문가로써의 위상 재정립”, “정부의 정책적인 보완과 지원이 필요함”, “정규직 전환으로 일자리 창출을 기대함”이 제시되었다.

앙상블 SVM 모형을 이용한 기업 부도 예측

최하나,임동훈 한국데이터정보과학회 2013 한국데이터정보과학회지 Vol.24 No.6

Corporate bankruptcy prediction has been an important topic in the accounting and finance field for a long time. Several data mining techniques have been used for bankruptcy prediction. However, there are many limits for application to real classification problem with a single model. This study proposes ensemble SVM (support vector machine) model which assembles different SVM models with each different kernel functions. Our ensemble model is made and evaluated by v-fold cross-validation approach. The k top performing models are recruited into the ensemble. The classification is then carried out using the majority voting opinion of the ensemble. In this paper, we investigate the performance of ensemble SVM classifier in terms of accuracy, error rate,sensitivity, specificity, ROC curve, and AUC to compare with single SVM classifiers based on financial ratios dataset and simulation dataset. The results confirmed the advantages of our method: It is robust while providing good performance. 기업의 부도를 예측하는 것은 회계나 재무 분야에서 중요한 연구주제이다. 지금까지 기업 부도예측을 위해 여러 가지 데이터마이닝 기법들이 적용되었으나 주로 단일 모형을 사용함으로서 복잡한 분류 문제에의 적용에 한계를 갖고 있었다. 본 논문에서는 최근에 각광받고 있는 SVM (support vector machine) 모형들을 결합한 앙상블 SVM 모형 (ensemble SVM model)을 부도예측에 사용하고자 한다. 제안된 앙상블 모형은 v-조각 교차 타당성 (v-fold cross-validation)에 의해 얻어진 여러 가지 모형 중에서 성능이 좋은 상위 k개의 단일 모형으로 구성하고 과반수 투표 방식 (majority voting)을 사용하여 미지의 클래스를 분류한다. 본 논문에서 제안된 앙상블 SVM 모형의 성능을 평가하기 위해 실제 기업의 재무비율 자료와 모의실험자료를 가지고 실험하였고, 실험결과 제안된 앙상블 모형이 여러 가지 평가척도 하에서 단일 SVM 모형들보다 좋은 성능을 보임을 알 수 있었다.

강박행동 아동의 강박행동 감소와 또래관계 개선을 위한 통합적 상담 사례연구

최하나,정종진 한국발달장애학회 2012 발달장애연구 Vol.16 No.4

본 연구는 강박행동 아동의 또래관계 개선을 위하여 인지행동치료, 미술치료, 부모상 담의 통합적 상담을 적용한 사례연구로, 통합적 상담이 강박행동 아동의 강박행동 감 소와 또래관계 개선에 효과가 있는가를 알아보기 위한 것이다. 이를 위해 아동 및 부 모와 면담을 바탕으로 통합적 상담을 통하여 강박행동을 감소시켜 바람직한 또래관계 를 경험하도록 하고, 자아존중감을 길러주어 또래관계가 개선되도록 하는 것을 상담 목표로 설정하였다. 경상북도 포항시 소재 M초등학교 5학년 아동을 대상으로 부모의 동의를 받아 2011년 8월부터 2011년 10월까지 14회기에 걸친 통합적 상담을 실시하 였다. 상담 전과 중간 그리고 후에 상담자, 부모, 또래의 관찰기록과 상담 후 면담을 통하여 아동을 보는 주변의 인식 변화를 알아보았으며, 이와 더불어 또래관계 기술척 도, 문장완성검사, 동적 학교 생활화검사를 실시하여 자료를 분석하였다. 그 결과, 통 합적 상담은 강박행동 아동의 강박적 사고와 가정에서의 스트레스를 줄여 강박행동을 감소시키고, 자신감과 자아존중감을 높여주어 또래관계 개선에 도움이 되는 것으로 밝혀졌다.

부모가 자녀에게 행하는 구강건강관리행동에 따른 아동의 구강건강상태

최하나,이지원,이성민 한국치위생학회 2017 한국치위생학회지 Vol.17 No.6

Objectives: The purpose of this study is to examine the effects of parents’ oral health management behavior towards children on children’s oral health. Methods: Dental examination were done to 82 children, and a survey was conducted to 82 parents of them. This researcher conducted multiple regression analysis to figure out how parents’ oral health management behavior towards their children influences their oral health condition. Results: Among the kinds of parents’ oral health management behavior towards their children, when they received a lower score in guidance for dietary control, children tended to have more dt index. Among the kinds of parents’ oral health management behavior towards their children, guidance for tooth brushing and guidance for oral care influenced their children’s O’leary index. When they received a higher score in guidance for tooth brushing and guidance for oral care, their children’s O’leary index became lower. Conclusions: This study has found that parents’ dietary guidance provided to children influences their dt index, and O’leary index, one of the major causes of dental caries, is influenced by parents’ guidance for tooth-brushing and guidance for oral care. Therefore, we should realize that according to the degree of parents’ interest in children’s oral care, children’s state of oral health can be changed, and parents should acquire proper knowledge about oral health and instruct and train their children desirably.

아시아 각국 아동의 우식실태와 사회환경요인과의 상관관계

최하나,신승철,조자원,장연수 한국보건교육건강증진학회 2008 한국보건교육·건강증진학회 학술대회 발표논문집 Vol.- No.-