<Memorias del Subdesarrollo> y Narrar Traumas

Este artículo toma como su punto de partida y análisis el modo de narrar las traumas en Memorias del subdesarrollo que despertó a los cubanos para poder enterarse de la situacón socio-política de Cuba y de sí mismos desde la perspectiva existencialista. Las obras tanto como la de Edmundo Desnoes como la de la colaboración entre el novelista mismo y el director Gutiérrez Alea son obras brillantes como modelo ejemplar con su valor socioideológico- artístico. El mérito más esencial que tienen la novela y la película se halla en el espíritu de buscar modos de narrar traumas para superarlos. Según los psicoanalistas los traumas históricos no se superan nunca, por que las víctimas no se atreven a enfrentarse con ellos, sino prefieren olvidarlos para no recordar lo negativo de las traumas. El protagonista Sergio confiesa que no quiere tener momorias incurables. Aunque decide quedarse en la Habana, no se atreve a enfrentarse con la realidad fde Cuba. Pero, recordando su pasado y observando su alrededor, él empieza a adquirir la mirada de ver las cosas y narrarlas, así introduciendo a los lectores y espectadores el modo de ver y observar los traumas y las huellas de heridas con momorias temibles. El modo de narrar las traumas se adquiere la posibiliadad de superarlos según las miradas del protagonista Sergio, quien nos narra la vida cotidiana de la gente de su alrededor para invitarnos a contemplar lo real entre lo metafísico y lo físico.이 논문은 2008년 정부(교육과학기술부)의 재원으로 한국학술진흥재단의 지원을 받 아 수행된 연구임(KRF-2008-362-A00003)

Microleakage of class II posterior composite resin filling using various light curing methods 구치부 광중합 복합레진 수복시 여러 광조사 방법에 따른 미세변연누출에 관한 연구

Thesis (master`s)--서울대학교 대학원 :치의학과 치과보존학전공,2001.Maste

미세전산화 단층촬영술을 이용한 한국인 상악제일대구치의 치근관 형태에 관한 연구

Thesis(doctoral)--서울대학교 대학원 :치의학과 구강해부학전공,2005.Docto

헤드 철근의 인발강도 산정을 위한 3차원 메커니즘에 관한 연구

학위논문(석사)--서울대학교 대학원 :건축학과,2004.Maste

레이저 빔 및 전기화학 복합 가공을 이용한 텅스텐 표면의 마이크로 스트럭쳐링 기술

학위논문 (박사)-- 서울대학교 대학원 : 기계항공공학부, 2016. 8. 주종남.In this dissertation, surface structuring to implement various functions was carried out by using hybrid process composed to laser beam machining and electrochemical etching. The suggested method fabricated tungsten easily which had varied applications, and achieved high productivity with fast machining speed, improved surface quality and low cost process, and thus it resolved problems of previous researches to texture tungsten. As using laser beam machining in first step, various shapes of tungsten micro patterning were pre-textured in short time. Generated recast layer and burr were formed on the original core shape that was pre-determined by laser scanning path, and thus degree of precision was low. For this reason, electrochemical etching to improve surface quality was carried out to dissolute recast layer into NaOH electrolyte, and thus pre-defined original micro pattern was revealed. In this research, guide lines to texture tungsten surface for micro channel and pin were suggested by using new micro structuring method. As combining varied laser scanning path array, fabricated shapes of structures were analyzed, and the resulted tendencies with different laser parameter were studied. Moreover, the solutions to texture vertical micro channel with over 90 °angles of slope and anisotropic angles were introduced by changing laser scanning direction and tilting procedure. The surface analysis of textured structure was achieved as control electrochemical etching time, and the etching conditions were chosen to eliminate recast layer efficiently. EDS analysis was also implemented finally, and thus the principle of the suggested micro hybrid structuring process was verified. The textured tungsten micro channel was applied to lock each other mechanically, and directional locking force was also measured. The textured tungsten micro pin was used as micro needle for delivering drug, and thus various application areas using newly introduced hybrid structuring process were suggested.1. Introduction 1 1.1 Research background 1 1.2 Research purpose 8 1.3 Dissertation overview 10 2. Principle of surface structuring 13 2.1 Laser beam machining 13 2.2 Electrochemical etching 21 2.3 Hybrid process for surface structuring 30 3. Experimental set up 34 3.1 Laser beam machining system 34 3.2 Electrochemical etching system 37 4. Surface structuring of various micro structure 40 4.1 Parameter test 41 4.2 Micro channel 64 4.3 Micro pin 106 5. Application 131 5.1 Locking 131 5.2 Needle 146 6. Conclusion 152 Reference 155 국문초록 159Docto

Toward the implementation model of high performance work systems

학위논문 (박사)-- 서울대학교 대학원 : 경영학과, 2016. 8. 김성수.Recently, high performance work systems (HPWS) have been regarded as a matter of implementation. Such trend has emerged because: 1) a consensus has not been reached as to the positive effects of HPWS on organizational performanceand 2) within-organization variability (e.g., decoupling between espoused and realized HR practices) over the implementation phase has increasingly been recognized. However, the review of the HPWS literature reveals that the accumulated body of studies has failed to clearly address implementation issues in its endeavor. That is, the current research is somewhat confined to measuring HPWS within the organization (e.g., unit, individual) and investigating the effects of such within-organization levels of HPWS on corresponding outcomes. In other words, a systematic approach still lacks examining why variability is observed in the organization over the implementation of HPWS. Indeed, several studies have recently proposed process models of strategic human resource management (SHRM). But, these are, by nature, review studies simply introducing potential factors that may hinder or facilitate HPWS implementation. Therefore, they do not have much to say about what needs to be done in order to ensure the effective implementation of HPWS. To fill such void, this thesis extends the current literature in three ways. To begin with, it is established that the implementation of HR practices is primarily team-level phenomena. Thus, the paper attempts to conceptualize HPWS at the team-level, and directs its attention to HR roles of team managers. It is widely accepted that team managers as agents for the organization play a pivotal role by assuming responsibility of enforcing espoused HR practices in their work groups. In this light, the implementation intensity of HPWS in a team could mainly be a product of the extent to which the team manager enforces HR practices in accordance with intended rules and procedures. Therefore, this paper hypothesizes that team managers implementation behavior toward espoused HR practices is associated with HPWS intensity, which is, in turn, related to team performance. Indeed, recognizing the importance of team managers HR role in the SHRM literature is not new. However, a systematic investigation of factors that cause variance in team managers commitment in the enforcement phase is rather scant. Here, this thesis draws on theory of planned behavior to explicate team managers implementation of espoused HR practices. Specifically, this paper expects that: 1) when a team manager believes that the enforcement of intended HR practices could improve team outcomes (i.e., performance expectancy)2) when he/she believes that HR enforcement is an easy-to-deal-with process (i.e., effort expectanceand 3) when he/she perceives a strong normative pressure from important others with regard to a rigorous implementation of espoused HR practices (i.e., social influence), it is likely to enhance team managers commitment to HR roles, thereby frequently displaying implementation behaviors in an intended manner. Although theory of planned behavior offers a meaningful framework of cognitive evaluation that determines implementation behaviors, it is still insufficient to suggest what to do to improve the enforcement process. This thesis expects that, by exploring HRM-specific situational factors that affect team managers cognitive belief, a comprehensive model of HPWS implementation could be put forward. First, developing HR practices in a way that properly match characteristics of teams (i.e., HRM-work compatibility) is proposed to influence team managers implementation of espoused HR practices, and the relationship is mediated by performance expectancy. Second, HR departments support and coordination over the enforcement phase (i.e., HR departments facilitation) improves effort expectancy, which subsequently influences implementation behaviors. Third, top management team (TMT)s continuous emphasis on HRM and sponsorship (i.e., TMTs HR orientation) motivate team managers to display implementation behaviors by enhancing social influence. Last, it is hypothesized that a shared climate among members of teams for HPWS implementation has holistic influence on team managers cognitive belief, which, in turn, affects implementation of espoused HR practices. Hypotheses were tested with 334 employees in 63 teams from 19 Korean companies. The results showed general support for the proposed model. Thus, the current study contributes the extant literature in several ways. To begin with, this study established team-level HPWS intensity and suggested team managers implementation of espoused HR practices as its direct antecedent. The integrative approach is a meaningful pursuit since HPWS and team manager studies have evolved in separate research streams in the SHRM literature. In addition, this thesis attempted to explicate team managers commitment to HR roles predicated upon technology acceptance models, thereby providing potential sources for variance in implementation behaviors. Last but not least, the current study proposed the implementation model of HPWS by indentifying HRM-specific contextual factors that exert influence on cognitive evaluation toward intended HR practices. The proposed model adds to the HPWS literature: 1) by detailing process models of SHRMand 2) as an integrated framework that explains necessary factors in order to ensure the effective implementation of HPWS.CHAPTER I. INTRODUCTION 1 CHAPTER II. LITERATURE REVIEW 6 CHAPTER III. CONCEPTUAL FRAMEWORK 31 CHAPTER IV. RSEARCCH METHODS 63 CHAPTER V. RESULTS 76 CHAPTER VI. DISCUSSION 84 TABLES 98 FIGURES 111 REFERENCES 112 국문 초록 144Docto

구치부 광중합 복합레진 수복시 여러 광조사 방법에 따른 미세변연누출에 관한 연구

목적 - 최근 복합레진의 미세변연누출을 줄이기 위한 새로운 광중합 조사방법이 연구되고 있다. 또한 구치용 복합레진이 개발되면서 그 제조회사에서는 5mm 깊이까지 광중합이 가능하다고 소개하고 있다. 본 연구에서는 논리적 가설에 근거한 몇가지 광중합 조사방법이 구치부 class II 와동의 복합레진 충전시 미세변연누출에 어떠한 영향을 미치는지를 관찰하였다. 재료 및 방법 - 100개의 우식증이 없는 사람의 상하악 대구치를 사용했다. 각 치아에 교합-치은방향으로 4mm, 협설 4mm, 깊이 2mm의 class II 와동을 형성하여 인접치와 함께 베이스플레이트 왁스에 매몰하고 구치용 복합레진인 Surefil을 제조 회사의 지시대로 충전하였다. 이때 5가지의 광조사방법을 이용하여 5개의 군으로 나누어 중합하였다(Table 1). 수복된 치아들을 5와 55의 수조에서 번갈아 1분씩 총 500회의 온도변화를 주어 thermocycling을 실시한 후 근첨을 폐쇄하고 수복와동의 치은경계를 제외한 전 표면에 nail varnish를 2회 도포하였다. 2%의 methylene blue용액에 24시간 침적시키고 흐르는 물에 세척한 후 시편을 투명한 에폭시 레진에 매몰하였다. 매몰된 시편을 치아 장축에 평행하게 절단 연마하였다. 입체 현미경으로 미세변연누출을 관찰하고 Kruskal-Wallis One Way ANOVA 와 Dunn's Method로 통계처리 하였다. 결과 - 1. 미세누출은 1군, 4군과 5군, 2군 3군 순으로 증가였다. 이때 1군, 4군과 5군은 통계적 유의성이 없었다(P>0.05). 2. 2군의 경우 1군, 4군, 5군에 비교하여 유의성 있게 미세누출이 많았으며(P<0.05) 3군에 비하여 유의성 있게 적게 나타났다(P<0.05). 3. 3군의 경우 다른 방법들에 비교하여 통계적으로 유의성 있게 미세누출이 많았다(P<0.05)