한국 만화영화 텍스트 연구 : 폭력 양성(養成) 메커니즘을 중심으로

정유라 中央大學校 大學院 1996 국내석사

취약성 자기애가 자기침묵에 미치는 영향 : 실제-이상 자기불일치와 수치심의 매개효과

정유라 가톨릭대학교 일반대학원 2017 국내석사

본 연구는 취약성 자기애와 자기침묵의 관계에서 실제-이상 자기불일치와 수치심의 매개 역할을 검증하고자 하였다. 이를 위해 경기도 소재의 4년제 대학교에 재학 중인 대학생 452명(남성 141명, 여성 311명)을 대상으로 병리적 자기애 척도(PNI), 자기 질문지(Self Questionnaire), 수치심 경험 척도(K-ESS), 자기침묵 척도(STSS)를 실시하여 자료를 수집하였다. 먼저 자기침묵과 실제-이상 자기불일치, 수치심의 특성이 자기애적 취약성에 특징적인 것인지 확인하기 위하여, PNI 점수에 근거하여 집단을 취약성 자기애 집단, 웅대성 자기애 집단, 비자기애 집단(통제 집단)으로 구분하고 SPSS 23.0을 사용하여 일원변량분석을 실시하였다. 이에 대한 결과는 다음과 같다. 첫째, 자기침묵은 취약성 자기애 집단, 웅대성 자기애 집단, 통제 집단 순으로 높았다. 둘째, 실제-이상 자기불일치는 웅대성 자기애 집단과 통제 집단 간 차이가 없었으나, 취약성 자기애 집단이 다른 집단에 비해 유의하게 높은 것으로 나타났다. 셋째, 수치심은 취약성 자기애 집단, 웅대성 자기애 집단, 통제 집단 순으로 높은 것으로 나타났다. 다음으로 취약성 자기애와 자기침묵의 관계에서 실제-이상 자기불일치와 수치심이 어떤 매개효과를 지니는지 알아보기 위하여, 이들 변인 간의 관계에 대한 가설적인 구조방정식 모형을 설정하고 AMOS 23,0을 사용하여 검증하였다. 이에 대한 결과는 다음과 같다. 첫째, 취약성 자기애가 자기침묵에 미치는 영향을 실제-이상 자기불일치가 부분적으로 매개하였다. 둘째, 취약성 자기애가 자기침묵에 미치는 영향을 수치심이 부분적으로 매개하였다. 셋째, 취약성 자기애가 자기침묵에 미치는 영향을 실제-이상 자기불일치와 수치심이 순차적으로 부분매개하였다. 즉, 취약성 자기애가 자기침묵에 직접 영향을 미치는가 하면, 실제-이상 자기불일치나 수치심을 매개로 자기침묵에 간접적으로 영향을 미치거나 혹은 이 둘을 차례로 매개로 하여 간접적으로 영향을 미치는 것으로 나타났다. 이러한 연구결과는 자기애적 취약성을 지닌 개인이 대인관계에서 이상과 괴리된 자신의 모습을 감추고 수치심으로부터 방어하기 위하여 자신의 생각과 감정을 감추는 방식으로 행동하는 자기침묵 경향이 있음을 보여준다. 이는 심리치료 장면에서 자기애 성향의 내담자들이 보이는 부적응적인 대인전략 행동에 실질적으로 개입할 수 있는 부분에 대한 이해를 제공해주었다는 점에서 그 의의가 있다. The purpose of this study was to investigate the nature of intra-personal and interpersonal dynamics of narcissism. Specifically, this study examined the mediating roles of actual-ideal self discrepancies and shame in relationship between vulnerable narcissism and self-silencing. Pathological narcissism was measured in terms of narcissistic grandiosity and narcissistic vulnerability while maladaptive self-presentation was measured in terms of self-silencing. Self-report questionnaires including pathological narcissism(Pathological Narcissism Inventory), self-silencing(Silencing The Self Scale), actual-ideal self discrepancies(Self Questionnaire), and shame(Korean Version of Experience of Shame Scale) from a sample of 452 undergraduate students in Gyeonggi, were analyzed using the SPSS 23.0 and the AMOS 23.0. The research findings were as follows. First, there is significant difference between grandiose narcissism group, vulnerable narcissism group and control group on self-silencing, self-discrepancies and shame. Second, results indicated that the effect of narcissistic vulnerability on self-silencing was partially mediated by self-discrepancies. Third, the effect of narcissistic vulnerability on self-silencing was also partially mediated by shame. Firth, the effect of narcissistic vulnerability on self-silencing was progressively mediated by self-discrepancies and shame. These findings suggested that narcissistic vulnerability tends to actively conceal more negative or imperfect self-aspect and tends to present perfect or more ideal self-aspect in order to protect the unstable self-esteem and actual-ideal self discrepancies, and defend against vulnerability for shame. This study has the implications for empirical research and clinical practice regarding treatment of clients with pathological narcissism.

시뮬레이션 게임을 활용한 지리수업의 효과분석 : 시뮬레이션 게임 '더 지리어스'를 중심으로

정유라 경북대학교 교육대학원 2021 국내석사

This work develops simulation games applicable to geography, applies them to real-world classes, and analyzes their effectiveness. To draw research conclusions, we refer to prior studies to organize the definition and classification of games and simulation games available for classes, and to organize the educational utilization and educational effects of simulation games to be used in this study. We then followed the simulation game creation steps presented by Malcolm (1976), and developed the simulation game "The Gerious". We analyzed the changes by pre-evaluating and post-evaluating the situation of students who participated in the simulation game "The Gerious", and whether they were interested in and immersed in the simulation game "The Gerious" to analyze the results. In addition, in-depth interviews were conducted to analyze what students felt and realized in the simulation game "The Gerious" to analyze the expressive objectives of the simulation game "The Gerious". The simulation game "The Gerious" is a game in which students play the role of advanced countries, developing countries, and international organizations for the environment, and play strategies to achieve their goals. The simulation game "The Gerious" is based on actual international conditions and includes the environmental problem of global warming. Teacher organization is essential after playing the simulation game "The Gerious." It is necessary to explain that the results vary depending on the IPCC's victory, summarize what countries each country was, and derive the fact that if everyone cooperates with students, they can prevent global warming and everyone can win. As a result, students will understand each country's position on global warming and see the importance of cooperation. This study conducted an experiment on 58 students in three classes of second grade A high school in Andong, Korea, and pre- and post-evaluation were conducted before and after simulation game classes began. Based on the evaluation results written by the students, changes in understanding of the situation were nomadicized, and the pre-knowledge and characteristics of the students participating in the simulation game, and the results were all different. To find out if students were interested in and immersed in the simulation game "The Gerious" class, survey questions were selected from the learner attitude test paper of the Korea Educational Development Institute (1985) and the immersion test paper of Seok Im-bok (2007). Furthermore, we analyze the expressive objectives of students who are not planned through in-depth interviews, but can be obtained through the simulation game "The Gerious". The results from this study are as follows. First, simulation game lessons help improve understanding of the situations presented in the game. Simulation games reflect real reality, and students can understand reality by themselves by participating in them. The simulation game "The Gerious" is a simple representation of the actual international situation, and students will understand the actual situation as they participate in the simulation game. In addition, students can understand each country's position on global warming and realize the importance of cooperation after the simulation game, knowing that everyone could win. In addition, students had previously approached global warming in general (personal) terms, but the simulation game "The Gerious" gave them international access, and there were various expressive objectives such as knowing the subject of world geography and the concept of carbon credits. Second, simulation game classes help students improve their interest and immersion in classes. According to an analysis of a survey of students who participated in the simulation game "The Gerious," most students were very interested and immersed in the class. In addition, in-depth interviews, students answered that classes using simulation games were fresh and very fun, and that geography improved, indicating that interest in geography increased. The simulation game "The Gerious" used in this study is a compositional learning method that constructs knowledge contextually through social interactions with friends as students actively participate in the situation, which increases students' understanding of the situation and interest in the class.

유도체화를 이용한 식육 중 노르제스토메트의 고감도 LC-MS 분석

정유라 中央大學校 大學院 2014 국내석사

노르제스토메트는 17α-acetate 사슬로 인해 경구 투여 활성이 향상된 progesterone의 합성유도체로써 소의 발정 유도 및 발정 동기화에 사용되는 동물용의약품이다. 현재, 국내 식품공전에는 노르제스토메트의 잔류허용기준 (MRL)이 설정되어 있지 않으나 유럽과 일본의 MRL은 각각 0.2, 0.1 ng/g으로 매우 낮게 설정되어 있어 소고기 속의 노르제스토메트의 원활한 분석을 위해서는 약 0.05 ng/g 이하의 LOQ를 갖는 고감도 분석법이 요구된다. 본 연구에서는 유도체화 반응을 이용한 노르제스토메트의 고감도 LC-MS/MS 분석법을 개발하였다. 2-hydrazinopyridine을 유도체화 시약으로 선택하여 다양한 조건에서 유도체화 조건을 적용하였고 반응표면분석법을 통하여 통계적으로 가장 최적화된 조건을 설정한 결과, 10%의 acetic acid를 첨가하여 70℃에서 70분간 반응시켰을 때 가장 좋은 감도를 보이는 것을 확인하였다. 또한, 다양한 조건에서의 실험을 통하여 고정상으로는 Ascentis Express C18 (2.1×150 mm 2.7μm)을 선택하였고, 이동상으로는 0.1% 포름산과 아세토니트릴을 선정하여 기울기 용리로 분석을 진행하였다. 개발된 분석법은 matrix를 사용하여 선택성, 직선성, 정확성, 검출한계, 정량한계 및 회수율 평가를 통해 검증하였고 시중에 판매되는 국내외 소고기를 사용하여 모니터링 하였다. 본 연구를 통하여 확립된 분석법은 낮은 검출감도로 인해 노르제스토메트의 분석이 어려웠던 기기들에서도 유도체화를 통해 감도를 높여 효과적으로 노르제스토메트를 검출할 수 있을 것으로 예상된다. 또한 노르제스토메트의 낮은 MRL 기준을 충족시켜 수입되는 소고기 속에 잔류하는 노르제스토메트의 모니터링과 관리에 유용할 것으로 기대한다. Norgestomet is a synthetic derivative of progesterone which has an advanced oral administration activity because of its 17α-acetate side chain. This drug is widely used for a synchronization of estrus in cattle. In Korea, the MRL for norgestomet is not set up yet, while Europe and Japan set the MRL of norgestomet as a 0.2, 0.1 ng/g respectively. Since MRL of these countries are too low, we need a sensitive LC-MS analysis method with LOQ lower than 0.05 ng/g for an effective analysis of norgestomet. In this study, highly sensitive LC-MS analysis method of norgestomet using derivatization was proposed. Various derivatization conditions were conducted with 2-hydrazinopyridine as a derivatization reagent and response surface methodology was applied to find a statistically optimized procedure of derivatization. The highest sensitivity was confirmed when the reaction was applied at 70℃ for 70 minutes. Also, the derivatized norgestomet was analyzed by using Ascentis Express C18 (2.1×150 mm 2.7μm) with gradient elution composed of 0.1% formic acid and acetonitrile at a flow rate of 0.3 mL/min. The proposed method was validated with selectivity, linearity, precision, accuracy, limit of quantification and recovery. The monitoring was carried out by using domestic and imported beef purchased from retail stores in Seoul. It is expected that the proposed highly sensitive LC-MS method will be effective for the analyzing norgestomet with low sensitivity instruments. It will be also useful for the monitoring the remained norgestomet in beef due to its ability of satisfying low MRL of norgestomet.

한국주식시장의 고유변동성 퍼즐과 투자자별 거래량

정유라 중앙대학교 대학원 2015 국내석사

This paper examine the Idiosyncratic Volatility(IVOL) puzzle and trading volumes by trader types in korea stock market. The stock data provided by FN Data Guide is of the period from January 1, 1999 to December 31, 2012 and includes all companies listed on the KRX and KOSDAQ. This study measured idiosyncratic volatility was measured by using the Fama-French’s three factor model and analyzed the relationship between stock returns and idiosyncratic volatility. Volatility for equal-weighted and value-weighted portfolios classified by size. Then, several robustness tests were conducted to control for potential cross-sectional pricing effects due to size, book-to-market ratio, trading volume, turnover ratio, PER and PCR. Last, measured were the alpha value and existence of IVOL effects of stock return classified by investors types(retail, institutional and foreign investors) as well as the selling and buying volume, weight of selling to buying volume, net buying volume and net buying volume ratio. This result shows that stock returns are negatively related to idiosyncratic volatility levels for higher equal-weighted portfolios. Also, alpha values from CAPM model and Fama-French’s three factor model show that as IVOL increases, alpha tends to have higher negative values-a negative relationship. After controlling the companies’ characteristic factors such as company size, book to market value ratio, trading volume, turnover ratio, PER and PCR, alpha value has significant and robust negative relationship with IVOL. Next we investigate the relationship between IVOL and the trading volumes of trader types in the korea stock market. The tables and graphs of portfolio returns as well as alpha values of IVOL classified by selling, buying, weights of selling and buying, net buying, and net buying volume ratio grouped by investor types(retail, institutional and foreign investors). This result show that retail investors with a higher level of selling and buying volume have lower alpha values and portfolio returns. Institutional and foreign investors with a higher level of buying volume have higher alpha values and portfolio returns than retail investors. In the case of retail investors with higher ratio of selling and buying volume, the portfolio returns show higher negative values as IVOL increases. But, institutional and foreign investors with higher weight of selling and buying volume ratio have higher returns than retail investors. Net buy higher trading volume by retail trader is low alpha and low return. As retail investors’ net buying volume increases, alpha values and portfolio returns decrease. However, institutional and foreign investors with higher net buying volume generally tend to have higher alpha values and portfolio returns. As for net buying volume, institutional and foreign investors produced better results. Net buying ratios when increase idiosyncratic volatility that low alpha and low return higher trading volume by retail trader. In case of institutional and foreign investors, the higher the ratio of net buying volume, the higher the alpha value and portfolio returns. Consequently, negatively related to idiosyncratic volatility(IVOL) and trading volume by trader types. As for investor types, stronger negative relationship between portfolio returns and IVOL is observed for retail investors. 본 연구는 한국주식시장의 고유변동성 퍼즐과 투자별 거래량에 관하여 분석하였다. 1999년1월1일부터 2012년12월31일까지 한국거래소에서 상장된 유가증권(KRX)과 코스닥(KOSDAQ) 1769개의 종목을 이용하였다. 고유변동성 측정방법은 시계열 분석방법 Fama-French 3요인 모형을 이용하여 고유변동성을 측정한다. 측정된 고유변동성기준에 근거하여 크기에 따라 분류된 포트폴리오의 동일가중평균 및 가치가중평균 수익률을 분석하였다. 이후 기업특성별 요인인 규모요인(SIZE), 장부가 대 시장가(B/M), 유동성(turnover), 주가/순이익비율(PER), 주가/현금흐름비율(PCR)등을 통제한 경우에도 고유변동성 효과가 존재하는가를 분석하였다. 이후에 투자자별로(개인, 기관, 외국인)들로 나누어 매도, 매수, 매도⋅매수비율, 순매수, 순매수율을 볼 때 측정되는 알파값과 고유변동성효과를 보이는가를 확인하였다. 본 연구를 분석한 결과 Fama-French 3요인 모형으로 측정한 고유변동성으로 동일가중과 가치가중수익률을 구한 결과 동일가중과 가치가중 수익률이 고유변동성이 커질수록 음(-)의 관계를 갖는다는 것을 볼 수 있었다. CAPM모형과 Fama-French 3요인 모형의 알파값 또한 고유변동성(IVOL)이 커질수록 알파값이 음(-)의 값으로 나타나는 것을 확인 할 수 있었다. 이후 기업특성별 요인을 통제했을 때 알파값이 고유변동성이 클수록 알파값과 음(-)의 관계를 보였다. 또 이를 투자자별(개인, 기관, 외국인)로 나누어 매도, 매수, 매도⋅매수비중, 순매수, 순매수율 이용하여 알파값을 측정하고 이와 투자자별로 포트폴리오 수익률을 계산하여 표와 그래프로 나타내었다. 결과로는 매도⋅매수에서는 개인이 다른 투자자보다 매도⋅매수를 많이 하는 분위에서 알파값과 수익률이 낮게 나타났다. 기관과 외국인은 매수에서 높은 분위가 알파값과 수익률이 개인보다 높게 나타났다. 투자자별 매도⋅매수비중에서는 개인의 매도⋅매수비중이 높은 개인투자자일수록 수익률은 고유변동성이 증가함에 따라 음(-)의 값을 보여주었다. 반대로 기관과 외국인 매도⋅매수비율은 매도⋅매수 비율이 높은 투자자가 포트폴리오 수익률에서 개인보다 더 나은 수익률을 얻는 것으로 나타났다. 투자자별 순매수는 투자자별로 개인의 순매수가 높을수록 알파값과 수익률이 낮게 보여 졌고 반대로 기관과 외국인은 순매수가 많은 투자자자 일수록 대체적으로 개인투자자보다 알파값과 포트폴리오 수익률이 대체적으로 더 좋게 나타났다. 따라서 순매수에서도 개인보다 기관과 외국인의 매도매수가 더 나았다고 할 수 있겠다. 투자자별 순매수율은 개인의 순매수율이 높을 때 알파값과 수익률이 고유변동성에 증가에 따라 점차 작아지는 것으로 관측되었다. 기관과 외국인 순매수율은 순매수율이 높을수록 알파값이 높게 나타났고 수익률 또한 개인보다 더 나은 수익률을 얻는 것으로 보여 졌다. 결과적으로 투자자별로 매수, 매도, 매수⋅매도비중, 순매수, 순매수율을 보았을 때 개인투자자의 매도⋅매수 행태에서 수익률과 고유변동성 간에 음(-)의 관계를 더 뚜렷하게 볼 수 있다. 또 투자자별로 나누어볼 때 개인투자자에서 이와 같은 현상이 좀 더 뚜렷하게 나타나 개인투자자의 거래량에서 주식수익률과 고유변동성간의 음(-)에 관계가 나타났다.

(The)Computational Balance of Sequence Alignments on donated Computing Resources

정유라 동국대학교 2019 국내석사

최근 사회의 많은 분야에서 컴퓨터 관련 인프라 구축의 발전으로 인해 다양한 데이터가 생산되고 있다. 특히 빅 데이터를 이용한 대용량 자료처리 및 데이터 의미 분석 등 계산 집약적인 자료처리가 많이 수행되고 있다. 이러한 데이터의 빠른 계산을 위해서 고사양의 하드웨어 자원이 필수이며 이미 다양한 분야에서 슈퍼컴퓨터를 이용한 자료계산을 수행하고 있다. 슈퍼컴퓨터는 빠른 계산을 위해 필수적이지만 슈퍼컴퓨터를 만들기 위한 고비용 및 운영에 필요한 재원 등이 지속적으로 필요하다는 단점을 가지고 있다. 대용량 자료 계산을 위해서는 MPI를 이용한 병렬처리를 사용할 수 있지만 기존의 소스코드를 MPI를 이용한 코드로 변환해야 하고 시스템 운영을 위한 전문가가 필요하다. 따라서 본 연구는 기존의 컴퓨팅 자원들을 이용하여 대용량 자료 계산이 가능한 계산을 제안한다. 위 논문은 연결된 컴퓨팅 자원의 활용을 최적화 하여 작업을 분산하여 계산을 제안한다. 사용자는 단일 프로그램 사용과 같은 방식으로 처리하고 결과물을 받기 때문에 사용이 상당히 용이하다. 유전체 관련 서열데이터가 기하급수적으로 증가함에 따라 다양한 결과 데이터를 생성해 낼 수 있기 때문에 본 연구에서는 서열 정렬(Sequence Alignment)를 목적계산으로 이용한다. Recently, various data are being produced due to the development of computer related infrastructure in many fields of society. Especially, computation intensive data processing such as large data processing and data semantic analysis using big data are performed. High-speed hardware resources are essential for fast calculation of these data, and data computations using supercomputers are already performed in various fields. Supercomputers are essential for fast calculations, but they have the disadvantage that they have a high cost to build supercomputers, and the resources they need to operate. Although it is possible to use parallel processing using MPI for mass data calculation, it is necessary to convert the existing source code to the code using MPI and to have expert for system operation. Therefore, this study develops algorithms capable of mass data calculation using existing computing resources. The proposed algorithm optimizes the utilization of the connected computing resources and performs the computation by automatically distributing the work. Users are fairly easy to use because they process and receive the results in the same way as a single program. In this study, sequence alignment is used as a target calculation.

Contributions of Overseas R&D Subsidiaries on Headquarter Innovation Performance

정유라 서울대학교 대학원 2017 국내석사

Overseas R&D subsidiaries contribute to the cross-border knowledge sourcing of MNC headquarters by providing tacit and context-specific knowledge and reducing the search costs borne by the headquarters. This study examines how overseas R&D subsidiaries allow their headquarters to source local knowledge from the host country. The study also investigates the effect on overseas knowledge sourcing caused by the external embeddedness of an overseas R&D subsidiary in the local network of the host country upon the formation of and experience with alliances entered into with local entities. In addition, the degree of knowledge digestibility that each headquarters retains as a condition by which host country knowledge sourcing of headquarter can be effectively facilitated by the host country R&D subsidiary is also investigated. The study tests the hypotheses established using a data sample representative of the geographical distribution of overseas R&D subsidiaries of 100 multinationals which were included on the Fortune 500 MNC list in the year 2008 and the patent data of each firm. The study provides empirical evidence that the headquarters can benefit from the existence of a R&D subsidiary when it exists in a host country with abundant knowledge. Moreover, the findings suggest that the degree of overseas R&D subsidiary’s embeddedness in the host country local network will reinforce the role of host country R&D subsidiary on host country knowledge acquisition and learning of the headquarters.

Study on passivation film stability on LiNi0.5Co0.2Mn0.3O2 electrode using linear sweep thermammetry(LSTA)

정유라 서울대학교 대학원 2014 국내석사

Nowadays, application range of lithium ion batteries (LIB) is begin to change from small power devices (e.g. IT devices) to large scale energy storage systems (e.g. electrical vehicle (EV), large scale energy storage systems (ESSs)). From this paradigm change, cycleability of fabricated battery system is more and more important than previous one. And especially, commercialized electrode materials are stable at long-term operation. In this case, passivation film stability is a point to be considered. Therefore, stabilization of this interphase is crucial. In this sense, various additives are currently being studied to stabilize the surface film for enhancing cycleability of battery system. Previously, evaluation sequences of suggested additives are time and cost consuming process. This process included long-term galvanostatic charge/discharge step, AC impedance for resistance measurement and XPS technique for seeing surface characteristics. As we can see the name of analysis technique, these methods are not economically favorable and also time involved cases. However, in industrial aspect, fast with accuracy and economy is needed for testing suggested additives. In this study, we suggest LSTA(Linear Sweep Thermmametry) technique for testing surface film characteristics with various additives and diverse temperature. LSTA shows cathodic or anodic currents on working electrode at fixed voltage with temperature sweep. In this case, LSTA is preceded after formation of surface film, therefore, in this experiment, anodic current shown by LSTA with temperature sweep means stability of surface film. From this basis, we predict surface film stability with additive variation at certain temperature. And by using stable electrode material with layered structure, LiNi0.5Co0.2Mn0.3O2 (NCM 523), we can apply this measured relative surface film stability to predict long-term cycleability of various temperatures at certain voltage cut-off cycling with used additives. In this research, we use non-additive included electrolyte, vinylene carbonate (VC) and propane sultone (PS) 2 wt. % added electrolyte solution. In previous reported studies, VC shows unstable feature and PS demonstrates stable characteristic at high temperature and voltage cycling. From selection of these known additives, we can define validation of suggested tool. Also, by choose two temperature cases with room temperature (25 0C) and high temperature (60 0C), temperature dependency of additives are also predicted and confirmed. In room temperature (25 0C) case, three electrolytes show no meaningful difference in anodic current measured by LSTA technique. And this tendency is also found at cycle performance of three electrolyte solution with NCM 523 active material. Furthermore, increment of resistance measured by AC impedance shows same trend with LSTA and cycle data. At high temperature (60 0C) condition, three electrolytes show different stability of surface film with PS, non-additive, VC, in sequence. Therefore, we can predict cycleability as that sequence. And in real evaluation of cycle performances of three electrolyte solutions with same active material, NCM 523, demonstrate same tendency as same with we predicted in LSTA data. In nyquist plots of three samples shows resistance difference of three samples with same trends, and also that sequence is also found at film thickness after cycling by XPS spectra. From these results, we can state that LSTA technique shows stability of surface film generated by additive variation. By using this technique for testing additive validation, time and cost saving at industrial field is expected.

Studies on the Synthesis of Dialkyl diselenides under Mild Basic Conditions

정유라 德成女子大學校 大學院 2023 국내석사

Selenium (Se) is known to have diverse beneficial effects in our bodies, including antioxidant, anti-inflammatory, and anticancer effects. Likewise, organoselenium compounds have drawn broad attention. In particular, dialkyl diselenides have strong anticancer activities, so many synthetic studies have been carried out to prepare the derivatives. In most of the synthetic studies, strong reducing agents and/or strong bases have been employed and thus, these methods have been suffered from the poor results and toxicity problems. We here present systematic studies on the selective synthesis of dialkyl diselenides 1 under green-chemistry conditions using mild reagents such as K2CO3 and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), instead of NH2NH2 or KOH. Consequently, DBU was used to optimize the reaction conditions for the preparation of intermediates, diselenide dianion [Se22-], and subsequently, it was reacted with alkyl halide (R-X) to give various dialkyl diselenides 1 in modest to good yields under mild conditions. Furthermore, studies on reaction mechanisms and solvent effects were also investigated.

대학생의 관계상실과 복합애도, 우울의 관계: 자기복잡성의 조절효과

정유라 대구대학교 대학원 2023 국내석사

본 연구는 관계상실과 복합애도 및 우울의 관계에서 자기복잡성의 조절효과를 검증하고자 하였다. 이를 확인하기 위하여 대구대학교 대학생 200명을 연구대상으로 관계상실경험, 자기복잡성, 복합애도, 우울에 관한 설문조사를 실시하였으며, 수집한 자료를 분석한 결과는 다음과 같다. 첫째, 관계상실은 복합애도, 우울의 관계에서 정적상관이 모두 유의하게 나타났다. 둘째, 자기복잡성과 우울간의 관계는 유의한 부적상관을 보였다. 셋째, 관계상실과 복합애도의 관계에서 관계상실의 주효과가 유의하게 나타났으며, 복합애도에 대한 관계상실과 자기복잡성의 유의한 상호작용 효과가 나타났다. 넷째, 관계상실과 우울의 관계에서 관계상실의 주효과가 정적으로 유의하게 나타났으며, 자기복잡성의 주효과가 부적으로 유의하게 나타났다. 또한 우울에 대한 관계상실과 자기복잡성의 유의한 상호작용 효과가 나타났다. 본 연구는 자기복잡성이 관계상실로 인한 복합애도 및 우울을 감소시키는 보호요인으로 작용한다는 점을 밝혔다는 것에 의의가 있다. 본 연구의 함의와 제한점 및 제언은 논의에서 다루었다. 주요어: 관계상실, 자기복잡성, 복합애도, 우울 This study tried to verify the moderating effects of self-complexity between loss of relationship, complicated grief, depression in college students. To confirm this, 200 university students at Daegu National University were surveyed on their experience of loss of relationship, self-complexity, complicated grief, depression, and the results of analyzing the collected data are as follows. First, the loss of relationship was significant in both positive correlation between complicated grief and depression. Second, the relationship between self-complexity and depression showed a significant negative correlation. Third, there was significant interaction effect between loss of relationship and self-complexity on complicated grief. Forth, there was a significant interaction effect between loss of relationship and self-complexity on depression. This study is meaningful in that self-complexity acts as a protective factor to reduce complicated grief and depression caused by loss of relationships. The implications, limitations and recommendations of this study were discussed in the discussion. Keyword: Loss Of Relationship, Self-Complexity, Complacated Grief, Depression