bFGF, PDGF-BB가 백서 골수기원 간엽 줄기세포의 조직골세포 분화에 미치는 영향에 관한 연구

송진아(Gin-Ah Song),최진영(Jin-Young Choi) 대한구강악안면외과학회 2006 대한구강악안면외과학회지 Vol.32 No.6

In this study we evaluate the effects of bFGF-BB and PDGF on in vitro proliferation, differentiation and mineralization of mesenchymal stem cells(MSCs) from rat. MSCs were prepared from the bone marrow of 6 or 7-week-old male rats with a technique previously described by Maniatopoulos et al. in 1988. Lineage differentiation to osteogenesis, chondrogenesis and adipogenesis were performed. At first, we characterized the cultured cell on passage 1, 3,5, 7 with immunocytochemical staining using CD29, 44, 34, 45, α-SMA and type I collagen. And to study the effects of bFGF and PDGF-BB on proliferation, differentiation and mineralization, we seeded the expanded cell at a density of 6 × 103 cells/cm2 to 100-mm dish for evaluation of cell proliferation and MTT assay was carried out on day 2, 4, 7, 9. We also resuspended the cells with same density (6 × 103 cells/cm2) to 24 well plates for subculture. On the following day, the attached cells were exposed to 2.5ng/ml bFGF and/or 25ng/ml PDGF-BB daily during 5 days. The osteocalcin(OC) level was assessed and mineral contents were evaluated with alizarin red S staining on subculture day 2, 7, 14, 21. We identified the mesenchymal stem cell from the bone marrow derived cells of rat through their successful multi-differentiation and stable display of its phenotype. And bFGF and PDGF-BB showed the effect that inhibited osteoblastic differentiation and mineralization mildly in above concentration at in vitro culture. This study was supported by grant 04-2004-0120 from the Seoul National University Hospital Research Fund.

구강악안면외과 의료행위 상대가치 개발에 대한 조사연구

송진아(Gin-Ah Song),백경원(Kyung-Won Baek),황종민(Jong-Min Hwang),유순용(Soon-Yong Yu),최진영(Jin-Young Choi) 대한구강악안면외과학회 2006 대한구강악안면외과학회지 Vol.32 No.4

The aim of this study is to evaluate the reasonableness of the medical fee on oral and maxillofacial surgery field according to surgeon’s opinions and actual conditions. The medical fee has significant influence on hospital income, the supply and distribution of medical manpower, quality and facilities of medical services. Questionnaire survey was sent to 86 oral and maxillofacial surgeons who worked more than 3 years in general hospital. Among them, 25 doctors replied the 109 answers survey and the average of treatment time and physician work relative value on each category was calculated. And the health insurance cost (that has been applied since 2003) was compared with the questionnaire results. And finally we investigated items that health insurance system did not include in oral and maxillofacial field but actually performed in oral and maxillofacial surgery clinic. The result was that the medical fee did not properly reflect physician work relative value of actual treatments. In case of complicated extraction, work relative value needed 3.5 times enhancement of present value. For simple impacted tooth extraction 1.8 times, for impacted tooth extraction including odontomy 1.7 times, and for fully impacted tooth more than 2/3 of it located into the alveolar bone, 1.8 times enhancement needed. In respect of the present physician work relative value, hemimandibulectomy with neck lymph node dissection for the malignancy is appropriated as 3.3 times of open reduction and internal fixation for the mandibular fracture, but the questionnaire result showed 25 times discrepancy. In conclusion, this research shows the need for intervention that health insurance included items and legal relative medical value must act in union with treatment in clinic to reduce the imbalance between them.

카지노 인근에 머무는 도박중독자가 체험한공간성

송진아 ( Jin Ah Song ),김선민 ( Sun Min Kim ),김용근 ( Yong Geun Kim ),신행호 ( Heang Ho Shin ) 한국사회복지연구회 2013 사회복지연구 Vol.44 No.1

본 연구는 도박장 인근에 사는 도박중독자들의 체험을 집중적으로 드러내기 위한 연구이다. 이에 본 연구자들은 카지노 인근 지역에 머무는 도박중독자 4명을 연구 참여자로 하여 이들이 체험하는 공간성이 무엇이며 그 의미가 어떠한지에 대하여 va-Mannen의 해석학적 현상학 방법으로 분석하였다. 그 결과 이들의 삶의 체험에 본질적으로 영향을 주는 것은 고향도 아닌, 제2의 정착지도 아닌 카지노 인근에 머문다는 현상 자체였다. 이들은 거주공간을 스스로 이탈하여 카지노 인근 지역에 유입되었지만 이 공간 안에서 실존적 거주공간을 짓지 못한 채 현재만을 살아가고 있었다. 그리하여 끊임없이 바깥세계와 세계와 다른 어딘가 짓지 못한 채 현재만을 살아가고 있었다. 그리하여 끊임없이 바깥세계와 세계와 다른 어딘가 사이에 ``끼인 존재``로서 존재론적 불안을 체험하고 있었다. The aim of this study is to reveal the lived experience of gambling addicts who have chosen to move near to move near to acasino area to live. Thus, the researchers interviewed four gambling addicts and analyzed what spatiality they experienced and what it meant by using the van Mannen`s hermeneutics phenomenological approach. The result revealed that what affected and constituted their lived experiences essentially was not where they came from or where there are now but the phenomenon itself which they stayed close to the casino. Even though they escaped their own living space for themselves and flowed into the casino vivinity, they seemed to live only for today, however they lived to make up the past loss or dream for better future through beating the odds of gambling. Therefore they did not make an ontological living. Thus, they were experiencing an existential anxiety as a ``Sandwich Being`` between the outside world and somewhere else in the world.

병원보의 정보서비스 기능을 고려한 편집디자인에 관한 사례분석연구

송진아(Song Jin-A),백진경(Paik Jin-Kyung),최인규(Choi In-Kyu) 한국디자인학회 2002 디자인학연구 Vol.- No.46

대학 홍보용 브로셔(brochure)의 편집디자인 분야에서 다양성과 통일성을 고려한 그리드 시스템(grid system) 사용에 관한 연구

송진아(Song Jin A),최인규(Choi In Kyu) 한국디자인학회 2002 디자인학연구 Vol.- No.47

도박중독 과정에 관한 질적연구

송진아(Song Jin-Ah) 한국사회복지학회 2011 한국사회복지학 Vol.63 No.3

본 연구는 도박중독의 과정적이고 진행적인 특성을 밝히기 위한 연구이다. 연구자는 도박중독 과정에 관한 기존의 연구들을 살펴봄으로써 그 이면에 있는 암묵적 가정에 대한 반성을 통하여 이 연구를 시작하였다. 이에 본 연구는 4명의 남성 도박중독자를 대상으로 심층인터뷰를 실시하였으며, 이 자료를 사례연구방법으로 분석하였다. 이 결과 도박중독의 과정은 단계별로 특정하게 진행되고 있었음을 알 수 있었다. 특히 도박중독 현상들이 매 단계 안에서 ‘동시성’을 가지고 나타나고 있음을 확인하였다. 각 단계에서 주로 보이는 현상들과 그 외의 이질적 사건들이 상호 보충적 의미를 가지고 해석되어지고, 그것이 다음 도박중독 단계로의 이행에 영향을 미치고 있는 것을 확인하였다. The aim of this study was to elucidate characteristics of ongoing and progressive gambling addiction. So a researcher reviewed existing studies on the gambling addiction and reflected the epistemological assumptions behind it. In this study, 4 men gamblers were participated and in-depth interviews were conducted, the data were analyzed using case studies. The results of this study were as followings; the process of gambling addiction was conducted based on a particular stage. In particular, we could find that the phenomenon of gambling addiction has ‘concurrency’ in each phase. Phenomenons often seen in each step and each other extraneous event were interpreted as mutually complementary meaning. Also they affected the transmission to next steps of gambling addiction.

선조립 철근 상세를 갖는 보-기둥 접합부의 내진성능

송진아(Song, Jin Ah),엄태성(Eom, Tae Sung),박홍근(Park, Hong Gun),이창남(Lee, Chang Nam) 한국콘크리트학회 2011 한국콘크리트학회 학술대회 논문집 Vol.2011 No.5

여성의 알코올 의존에 이르게 되는 과정에 관한 현상학적 사례연구

송진아 ( Jin Ah Song ),강경화 ( Kyong Hwa Kang ) 한국사회복지연구회 2013 사회복지연구 Vol.44 No.3

본 연구는 여성의 생애맥락적 관점을 유지한 채 이들이 알코올 의존에 이르게 되는 과정에 대하여 알아보고자 한 현상학적 사례연구이다. 참여자들의 생애맥락에서 가장 먼저 드러나는 현상은 ‘불완전한 관계’라는 현상이었고 이는 알코올 의존 현상을 추동하고 있었다. 특히 본 연구자들은 참여자들의 생애 첫 음주를 주목하였는데, 이들에게 생애 첫 음주는 ‘고유한 상징체계’로서 독특한 의미가 부여되고 있었다. 참여자들이 술을 선택하는 과정에서 드러난 현상은 일상 사건의 연장이라는 ‘일상성’의 현상이었다. 참여자들의 일상성의 맥락에서 본 알코올 의존 현상은 ‘침습’ 혹은 ‘침투’라는 과정을 거치게 된다. 이러한 과정을 거쳐 여성들의 알코올 의존 체험은 ‘현실의 무성화’와 ‘현실의 신기루화’로 나타났다. 이러한 연구결과를 바탕으로 여성 알코올 의존자들에 대한 개입을 위한 실천적 함의를 도출하였다. This research is a phenomenological case study to find about the process of becoming alcohol dependence among women, with a lifetime contextual point of view. The first phenomenon which participants experience within their lifetime was ‘incomplete relationship’. This was a trigger to become alcohol dependence. The researchers whom participated in this research focused on the first alcohol intake. The first drink has been given a unique meaning as ‘characteristic symbol system’. While the participants were choosing alcohol, dailiness, a continuum of daily life emerged. With dailiness aspect, alcohol dependence goes through a process of ‘invasion or penetration’. Through these processes alcohol dependent experience among women became ‘meaninglessness and mirage’. According to these results undertone to approach women alcohol dependence was able to be deducted.

PRC 보-기둥 접합부의 내진성능

송진아(Song, Jin-Ah),박홍근(Park, Hong-Gun),이창남(Lee, Chang-Nam),엄태성(Eom, Tae-Sung) 대한건축학회 2011 大韓建築學會論文集 : 構造系 Vol.27 No.10

Prefabricated reinforced concrete (PRC) uses prefabricated re-bars for fast construction and cost-saving. In the present study, prefabricated re-bar details for beam-column connection were developed. Cyclic loading tests were performed to evaluate the earthquake resistance of interior and exterior beam-column connections. The beam-column connections were designed in full scale to satisfy the requirements of the special moment frame specified in KCI 2007 and ACI 318-08. For the PRC method, re-bar welding, coupler splice, headed bar anchorage, and high strength steel (SD500W) were used in the specimens. Test results showed that the PRC connections showed deformation capacity greater than the minimum story drift ratio of the special moment frame, 3.5 %, specified in ACI 374.1-05. The load-carrying capacity, yield stiffness, and energy dissipation capacity of the PRC connections were comparable to those of conventional reinforced concrete connection. The major failure modes of the PRC connections were flexural crushing of concrete and re-bar fracture at the beam plastic hinge region. The re-bar welding and coupler splice did not significantly affect the performance of the specimens.

Microsoft Windows에서 공동 작업을 위한 프로그램 공유

송진아(Jin-Ah Song),권기항(Kee-Hang Kwon) 한국정보과학회 영남지부 2007 한국정보과학회 영남지부 학술발표논문집 Vol.1 No.1

상호간의 업무나 의사소통을 위해 인터넷을 주로 사용하게 되면서 컴퓨터를 이용한 공동 업무를 진행하는 경우도 증가하게 되었다. 이를 위한 많은 시스템이 개발 되었는데, 본 논문에서는 기존의 Software Streaming, Virtual Network Computing 시스템의 단점을 보완하고 효율성을 증대 시킬 수 있는 방법을 제시한다. 프로그램 공유 작업을 시작하면 서버 측에서는 윈도우 창 단위로 필요한 프로그램의 화면 데이터만 전송하고 클라이언트 측에서는 프로그램 단위의 제어 권한만 획득함으로써 서버의 보안에 문제가 발생하지 않도록 하였다.