진도견(珍島犬)의 정자형성(精子形成)과 Sertoli세포(細胞) 특수(特殊) 연접부(連接部)의 미세구조(微細構造) II, Sertoli 세포(細胞) 특수(特殊) 연접부(連接部)의 미세구조(微細構造)

박영석,이재홍,Park, Young-seok,Lee, Jae-hong 대한수의학회 1992 大韓獸醫學會誌 Vol.32 No.3

In order to study on the Sertoli cell, we attempt have been made to measure the average number of each germ cells per Sertoli cell on the 12 stages of cycle in matured korean Jindo dog. The fine structure of Sertoli cell junctional specialization was studied with electron microscope. The results were summarized as follows; 1. The average number of various germ cells associated with Sertoli cell was 9.77 to 13. 80 through stages of cycle and the total average number was 11.62. 2. Sertoli-Sertoli cell junctional specialization was present in seminiferous epilthelium, and Sertoli-spermatid cell junctional specialization rose from stage 8 spermatid, persisted to step 13 spermatid and then disappeared. The structure of Sedoli-spermatid cell juncticnal specialization was not similar to that of Sertoli cxlls. 3. Just after spermiation, free-surface of Sertoli-spermatid cell junctional specialization was replaced by Sertoli cell cytoplasm with tubulobulbar complex at the neiglaboring region observed. 4. The Sertoli cell process was located within the cytoplasm of late stage spermatids. Some membranes of residual body and spermatid cytoplasm partly disappeared, resulting in opening of the cytoplasm of spermatid into that Sertoli cell. This fact suggested that spermatid cytoplasm was partly eliminated.

진도견 정자형성계 세포들의 Lectin-binding patterns

박영석,이성호,Park, Young-seok,Lee, Seong-ho 대한수의학회 1996 大韓獸醫學會誌 Vol.36 No.3

The lectin-binding patterns in the testis of the sexually matured Jindo dog were investigated to study the distribution of glycoconjugates in the seminiferous tubule under light and transmission electron microscopy. Positive reactions to Wheat germ agglutinin(WGA) and Dolichos biflorus agglutinin (DBA) were observed in the Sertoli cell and in the residual body of spermatid with a stronger reaction in the Sertoli cell to the lectins than in the residual body. Strong reactions to Soybean agglutinin(SBA) and Peanut agglutinin(PNA) were observed in the acrosome vesicles of the Golgi- and cap-phase spermatid, while a moderate reaction was observed in the acrosome-phase, maturation-phase spermatid and the residual body. The acrosome area of the spermatid reacted intensively to Griffonia simplicifolia agglutinin( GS-I) when the cell was in the acrosome-phase and maturation-phase, and the same reaction to the GS-I was observed in the residual body. However, the seminiferous tubule did not react to Ulex europeus agglutinin I(UEA-I). The gold-labelling of the Sertoli cells with DBA resulted in positive reactions of the Sertoli cell column and processes when observed under the electron microscopy, while the Golgi-, cap- and acrosome-phase spermatids reacted positively to SBA in the peripheral low-dense area of the acrosome vesicle of spermatid. Based on these results, we concluded that differences in the lectin-binding pattern of the seminiferous tubules were recognized in the Jindo dog compared to other animals.

진도견 정세관의 정세포와 Sertoli 세포내 glycogen의 분포

박영석,이성호,Park, Young-seok,Lee, Seong-ho 대한수의학회 1996 大韓獸醫學會誌 Vol.36 No.3

In an effort to obtain basic data of carbohydrate metabolism during spermiogenesis of the sexually-matured Jindo dog, the glycogen distribution in the testis was investigated by light and transmission electron microscopy. Periodic acid thiocarbohydrazide silver proteinate physical development(PA-TCH-SP-PD) staining method provided better results in the detection of glycogen granules from Sertoli cells and germ cells than the periodic acid schiff(PAS) staining method did. Pre-treatment of the tissue sections with ${\alpha}$-amylase elicited a significant decrease in PA-TCH-SP-PD stained granules, which suggested that the stained granules were of glycogen origin. High concentration of the glycogen granules were observed in the Sertoli cells, especially in its column, sheet-like processes, club-like processes, and tubular processes. The glycogen granules were unevenly distributed in some Sertoli cell columns. These results strongly indicated that the Sertoli cells of Jindo dogs showed vigorous activity of carbohydrate metabolism.

진도견(珍島犬)의 정자형성(精子形成)과 Sertoli세포(細胞) 특수(特殊) 연접부(連接部)의 미세구조(微細構造) I. 진도견(珍島犬)의 정자형성(精子形成)에 관한 연구(硏究)

박영석,이재홍,Park, Young-seok,Lee, Jae-hong 대한수의학회 1992 大韓獸醫學會誌 Vol.32 No.3

Classification of the cycle of seminiferous epithelia into 12 stages by the morphological changes in acrosomal system and evaluation of the relative frequency of stages and the cell association were histologically performed in the mature Korean native Jin-do dogs. The results were summarized as follows; 1. The minimum number of type A spermatogonia averaged 1.01 at stages I, while maximum number averaged 2.47 at stages XII. Some type A spermatogonia divided at stage XII to produce the type intermediate(IN) spermatogonia at the following stage I. The type IN spermatogonia divided at stage IV to produce the type B spermatogonia at stage V. 2. The type B spermatogonia divided at stage VI to produce the preleptotene primary spermatocytes at stage VII. The secondary spermatocytes observed at stage XII. The secondary spermatocytes observed at stage XII divided to give rise to the round spermatids at the following stage I. The numbers of the first spermatocytes and spermatids were almost constant, respectively, through all the cycles of seminiferous epithelium. 3. The acrosomal vesicle was invaginated to occupy one third to half of spermatid nucleus at the cap phase, which was different from that of rodent and ruminant spermatid nuclei. 4. The relative frequencies of stages I to XII of seminiferous epithelia cycle were 10.34, 4.84, 5.03, 8.22, 10.86, 6.63, 6.42, 18.88, 10.17, 6.18, 7.62% and 4.81%, respectively.

고단열 건물일체형 태양광발전시스템(BIPV)의 적용 효과

박영석,안영섭,Park, Young-Seok,An, Young-Sub 한국건설순환자원학회 2014 한국건설순환자원학회지 Vol.9 No.1

드니 빌뇌브의 〈컨택트〉에서 드러나는 비선형적 시간 지각과 자유의지의 문제

박영석(Park, Young-seok) 한국영화학회 2018 영화연구 Vol.0 No.75

본 논문은 드니 빌뇌브 감독의 SF 영화 〈컨택트〉(2016)에서 드러나는 비선형적 시간관과 이와 관련된 문제의식을 원작 소설인 테드 창의 「네 인생의 이야기」와 함께 분석한다. 두 작품의 주제는 비선형적 시간 지각을 기반으로 형성되는 ‘미래의 기억’이라는 역설이다. 이 개념의 핵심은 그것이 주체의 ‘정신 안’에서 벌어지는 일이라는 점에 있으며, 그 심층적 의미는 질 들뢰즈의 시간철학을 통해 살펴볼 수 있다. 반복을 응시하는 주체의 정신 안에서 지각되는 차이로부터 시간을 사유하고, 시간의 역설들과 ‘순수 과거’(passé pur)와 관련된 논증을 통해 시간의 종합을 구성해내는 들뢰즈의 철학은 본고의 시간론의 핵심을 이룬다. 〈컨택트〉에서 인간이 현재와 미래를 동시적으로 지각할 수 있게 되는 매체는 바로 언어이다. 외계인 ‘헵타포드’의 언어는 본질적으로 비선형적이고 시간에 독립적인 성격을 가지며, 세계를 목적론적으로 지각하는 사고체계에 기반을 둔다. 여기에는 새로운 언어를 배우는 일이 인간의 뇌와 사고방식에 근본적인 변화를 준다고 믿는 ‘언어 상대성 가설’의 영향이 있다. 이 영화에서 비선형적 시간 지각을 통해 제기되는 문제의식은 다음과 같은 질문으로 귀결된다. 당신의 인생이 어떻게 흘러갈지, 누구와 만나고 사랑하고 이별하며 결정적으로 언제 죽음을 맞이할지 완전히 안다면, 당신은 무엇을 할 것인가? 이 질문은 결정론과 자유의지의 대립이라는 난제와 관련되는데, 본 논문에서는 〈컨택트〉의 내러티브를 자세히 분석함으로써 이에 대한 논증을 시도한다. The objective of this study was to examine the nonlinear perception of time and related critical issues presented in Denis Villeneuve’s SF film Arrival, based on its original fiction Story of Your Life by Ted Chiang. These two works are a paradox of ‘future memory’ established in the nonlinear perception of time. The core of this perception is the fact that the future memory occurs ‘within subject’s mind’ and its in-depth meaning can be traced with Gilles Deleuze’s philosophy of time. The core of this study’s time theory consists of the philosophy of Deleuze who thinks over time with the difference perceived within the mind of subject who stares at repetition, and composes the syntheses of time through time paradox and ‘passé pur-related’ argumentation. In Arrival, the medium with which human beings could perceive present and future simultaneously is the very language. The language of alien ‘Heptapods’ is essentially nonlinear and independent from time, and based on the system of thinking which perceives the world teleologically. And there is the influence of ‘linguistic relativity hypothesis’ which believes that to learn a new language fundamentally changes human brain and way of thinking. The critical issue posed through the nonlinear perception of time in this film can be concluded by following question: If you completely know ‘what is your destiny of life, whom do you meet and fall in love with, and separate from, and when you die’, then what do you do? This question is related to the difficult issue of confrontation between determinism and free will, and this study examines this issue based on the detailed analysis of narratives of Arrival.

韓人少年兵學校 硏究

朴永錫(Park, Young-seok) 독립기념관 한국독립운동사연구소 1987 한국독립운동사연구 Vol.1 No.-

교액성 폐쇄공탈장 2예의 치험보고

박영석(Young Seok Park),김용일(Yong Il Kim),전규영(Kyu Young Jun) 대한외과학회 1991 Annals of Surgical Treatment and Research Vol.40 No.1

고령자의 사회적 건강이 삶의 질에 미치는 영향

박영석(Young-Seok Park) 한국콘텐츠학회 2013 한국콘텐츠학회논문지 Vol.13 No.11

다가올 고령사회 고령자의 사회문제를 해결하기 위한 방안으로 사회적 건강의 필요성을 주장하고, 고령자의 사회적 건강이 삶의 질에 미치는 영향을 파악하고자 함이 주된 연구의 목적이다. 이를 위해 경기도 의왕시에 거주하고 있는 65세 이상 고령자 중 사회활동에 참가하는 고령자를 대상으로 하였으며, 총 157부가 최종분석에 사용되었다. IBM SPSS 21.0 을 이용하여 빈도분석, t-Test와 one-way ANOVA, Duncan 사후검정상관관계분석, 위계적 회귀분석을 실시하였다. 주된 연구결과는 다음과 같다. 사회인구학적 요인과 사회적 건강의 상관관계에 있어서는 경제적수준, 주관적 건강과 사회적 건강은 양(+)적인 상관관계를 나타냈으며, 요양등급은, 경제적수준, 주관적 건강은 사회적 건강과는 음(-)적인 상관관계를 나타냈다. 사회적 건강이 삶의 질에 미치는 영향에 있어서는 사회인구학적 특성 변인만을 투입한 모델1의 경우 분산설명력은 38.2%로 나타났고, 회귀모형은 유의미하였다(F=13.141, p<.001). 사회인구학적 특성과 사회적 건강 변인을 투입한 모델2의 경우 분산설명력은 13.8%로 나타났으며, 회귀모형은 유의미하였다(F=20.057, p<.001). 이상의 연구결과를 바탕으로 몇 가지 제언을 제시하였다. The purpose of this paper is to assert the necessity of social health as a solution to resolve social issues of the aged in the nearing aged society, and to assess the effects that the social health of the aged has on their quality of life. In doing so, the study gathered as its study subjects those aged persons who participate in social activities among persons aged 65 or older who reside in Euiwang-si, Gyeonggi-do. A total of 157 subject studies were used for the final analysis. An analysis of frequency, t-Test and one-way ANOVA, Duncan post-test, correlation analysis and hierarchical regression analysis was conducted by using the IBM SPSS 21.0. The main study findings are as follows. with respect to the correlation between socio-demographic factors and social health, economic level, subjective level of health and social health showed a positive correlation. Domiciliary treatment level and subjective level of health showed a negative correlation with economic level and social health, respectively. with respect to the effects of social health on quality of life, in the case of model 1 which only input factors of socio-demographical characteristics, the variance explanation power was found to be 38.2% and the regression model was found to be significant (F=13.141, p<.001). In the case of model 2 which input factors of socio-demographical characteristics and social health, the variance explanation power was found to be 13.8% and the regression model was found to be significant (F=20.057, p<.001). Based on such study results, this study recommends a number of proposals.

항공사 승무원의 서비스 회복 행동, 서비스 행동 및 서비스 품질에 미치는 문화적 영향에 관한 연구

박영석(Young Seok Park),변정우(Jung Woo Byun) 한국호텔외식관광경영학회 2011 호텔경영학연구 Vol.20 No.4

The purpose of this study is to find out the cultural influence on service recovery performance, service behavior and service quality of American and Japanese flight attendants working in an American air carrier. To accomplish this study, a total of 240 questionnaires were handed out to American and Japanese flight attendants and 191 copies were used for analysis. To analyze the collected data, factor, reliability analysis and T test were conducted. The results of this study are as follows. First, American flight attendants were higher in service recovery performance than Japanese flight attendants. Second, there were differences in service behaviors between two groups showing that American flight attendants are higher in extra-role and role-prescribed service behaviors. There was no difference in cooperation. Third, out of 4 dimensions of service quality, American flight attendants are higher in all of 4 dimensions which are tangible, reliability/assurance, responsiveness, and empathy.