복재 신경의 혈관망을 이용한 원위도상 도서형 신경피부 피판술

김상수,김동철,김용범,Kim, Sang-Soo,Kim, Dong-Churl,Kim, Yong-Bum 대한미세수술학회 2001 Archives of reconstructive microsurgery Vol.10 No.1

Introduction : The goal in the management of soft tissue injuries of the lower extremity is to obtain a closed stable wound as soon as possible. Recently, An anatomic study that has shown the role of the vascular axis that follows the superficial sensory nerves in supplying the skin developed the concept of a neuroskin island flap. It has been suggested that skin island flaps supplied by the vascular network of the saphenous nerve is one of the most reliable treatment to skin defect below the knee joint. Purpose : The aim of this article is to present a clinical experience of neuroskin island flaps based on the saphenous nerve and to estimate the clinical utilities of distally based saphenous neuroskin flap. Materials and Methods : From September 1995 to May 2000, a total 12 distally based neuroskin island flaps supplied by the vascular axis of the saphenous nerve were performed to cover defects in pretibial area below the knee. Result : flap necrosis due to reactivation of existing infection developed in a case that skin defect had been on infected nonunion site of tibia. But other 11 cases survived completely without any specific complications. Conclusion : The distally based neuroskin pedicled island flap using the vascular network of the saphenous nerve are versatile and reliable and especially indicated for limited defects in pretibial area below the knee joint which are not good indications for other better-known flaps.

공황장애 환자의 질환행동에 관한 연구

김상수,제영묘,김상엽,이대수,이승호,최은영,Kim, Sang-Soo,Je, Young-Myo,Kim, Sang-Yeop,Lee, Dae-Soo,Lee, Sung-Ho,Choi, Eun-Young 한국정신신체의학회 1998 정신신체의학 Vol.6 No.2

This study was conducted to determine the important factors in the illness behavior of panic disorder patients. And then, find the best ways to lead the patients who have recurrent panic attacks to the adequate therapeutic situations. We studied 53 patients diagnosed as panic disorder according to DSM-IV among the outpatients who had been followed up at Bong Seng Memorial Hospital for 6 Ms, from May 1997 to October 1997. To evaluate the illness behaviors, we designed a checklist including socio-demographic data, degree of subjective distress from medical and psychiatric treatment, panic symptoms, life events, places of help-seeking, Anxiety Sensitivity Index. Using the checklist, we had semistructured interviews with the panic disorder patients to elucidate their help-seeking behaviors from first panic attack to diagnosing as panic disorder. The results were as follows ; 1) After first panic attack, the patients initially sought help at 1) Emergency room 40%, 2) Rest &/or Personal emergency care 35%, 3) Pharmacy 10%, 4) Outpatient care at hospital 10%, 5) Oriental medicine 5%. 2) Considering the panic symptoms, derealization, paresthesia and the severity of panic symptoms were the most important factors affecting the patient's help-seeking behaviors who had experienced the first panic attack. 3) Most of all the patients (80%) were apt to visit the hospitals within 15 days after experiencing about 3 panic attacks. 4) Before diagnosed as panic disorder, the patients had visited 3-5 health care centers during about 1 year. 5) Primary care physicaians(for example, emergency care physicians, family doctors and internists) had the most important roles in treating or guiding the patients to the adequate therapeutic situations. From the above results, the authors propose that non-psychiatric physicians have to know the panic disorder or attacks exactly. When patients complaint sudden onset physical symptoms e.g. palpitation, dyspnea, dizziness or the cognitive symptoms like the fear of death or insanity, physicians should consider the possibility of panic attack and encourage the patients to be evaluated for psychiatric illness.

감마선이 조사된 미성숙 생쥐 난소 내 인히빈의 발현 변화

김상수,이창주,윤현태,윤용달,Kim, Sang Soo,Lee, Chang Joo,Yoon, Hyun-Tae,Yoon, Yong-Dal 대한생식의학회 2006 Clinical and Experimental Reproductive Medicine Vol.33 No.1

목 적: 본 연구의 목적은 난소 내 인히빈-${\alpha}$에 단백질 발현과 인히빈 ${\alpha}$, ${\beta}A$, 그리고 ${\beta}B$ 유전자의 발현에 감마선이 미치는 효과를 연구하는 것이다. 연구방법: 미성숙 생쥐에 감마선을 치사량의 25% 효과로 전신 조사하였다. 감마선 조사 후, 0, 3, 6, 12, 24시간이 지나서 난소를 적출하였다. 적출한 난소를 이용하여, 인히빈 ${\alpha}$에 대한 면역조직화학 염색과 인히빈 ${\alpha}$, ${\beta}A$, 그리고 ${\beta}B$에 대한 RT-PCR을 수행하였다. 결 과: 인히빈 ${\alpha}$ 면역양성반응성은 12시간 방사선 조사 후까지 유지가 되었고, 이후에 감소하였다. 인히빈 ${\alpha}$ mRNA의 발현은 방사선 처리 후에 유의하게 증가하였다. 그러나, 인히빈 ${\beta}A$와 ${\beta}B$의 mRNA의 발현은 유의한 변화가 나타나지 않았다. 결 론: 인히빈은 감마선 조사로 유도된 생쥐난포 폐쇄에 조절적 요소로 작용하는 것으로 사료된다. Objective: The purposes of the present study were to investigate the effect of ${\gamma}$-radiation on the expression of inhibin-${\alpha}$ proteins and genes for inhibin ${\alpha}$, ${\beta}A$, and ${\beta}B$ in the ovary. Methods: Immature mice were whole-body ${\gamma}$-irradiated with 25% of a lethal dose. At time 0, 3, 6, 12, and 24 hours after the irradiation, the ovaries were collected and used for immunohistochemistry for inhibin-${\alpha}$, and RT_PCR for inhibin-${\alpha}$, ${\beta}A$, and ${\beta}B$. Results: The expression of the immunoreactive inhibins-${\alpha}$ was maintained at 12 hours post-irradiation and reduced thereafter. The expression of inhibin-${\alpha}$ mRNA was significantly increased with the time after the irradiation. However there were no significant changes in the expression of ${\beta}A$ and ${\beta}B$ mRNAs. Conclusion: It might be thought that inhibin acts as one of the regulatory factors in the ${\gamma}$-radiation-induced follicular atresia in mice

스케일간 웨이블릿 계수 절대치의 선형 모델링을 이용한 영상 보간

김상수,엄일규,김유신,Kim Sang-Soo,Eom Il-Kyu,Kim Yoo-Shin 대한전자공학회 2005 電子工學會論文誌-SP (Signal processing) Vol.42 No.6

웨이블릿 영역에서의 영상 보간은 웨이블릿 계수들의 통계적 특성과 스케일간 의존성을 표현하는 확률모델을 이용한다. 본 논문에서는 보간할 영상에 대해 스케일간 웨이블릿 계수의 절대치를 선형 모델링하여 분산을 추정하고 이를 바탕으로 고주파 부대역의 확률모델을 실현하여 영상을 보간하는 방법을 제안한다. 본 논문의 방법은 확률 모델에 대한 추정된 파라미터에 의해 웨이블릿 계수를 난수 형태로 발생시키는 방법을 사용한다. 확률모델을 따라 난수를 발생할 경우 추정 부대역에 난수에 의한 잡음이 발생하게 된다. 본 논문에서는 후처리 과정으로 Wiener filter를 사용하여 부대역의 잡음을 제거하였다. 제안 방법으로 외삽한 부대역에 대한 확률 밀도함수를 비교적 정확하게 추정한 것을 볼 수 있다. 실험을 통해 제안방법이 bicubic과 같은 전통적인 방법뿐 아니라 웨이블릿 영역에서의 다른 영상보간법보다 나은 주관적, 객관적 성능을 가지고 있음을 보였다. Image interpolation in the wavelet domain usually takes advantage of the probabilistic models for the intrascale statistics and the interscale dependency. In this paper, we adopt the linear model for the absolute values of wavelet coefficients of interpolated image across scale to estimate the variances of extrapolated bands. The proposed algorithm uses randomly generated wavelet coefficients based on the estimated parameters for probabilistic model. Random number generation according to the estimated probabilistic model may induce the 'salt and pepper' noise in subbands. We reduce the noise power by Wiener filtering. We observe that the proposed method generates the histogram of the subband coefficients similar to the that of original image. Experimental results show that our method outperforms the previous wavelet-domain interpolation method as well as the conventional bicubic method.

사회적지지가 베이비부머의 창업기회역량에 미치는 영향에 관한 연구: 창업자기효능감의 매개효과를 중심으로

김상수,임왕규,Kim, Sang Soo,Lim, Wang Kyu 한국벤처창업학회 2017 벤처창업연구 Vol.12 No.5

본 연구는 베이비부머 (1955-1963년생)를 대상으로 창업자기효능감을 매개 변수로 하여 사회적지지가 창업기회역량에 미치는 영향에 관하여 분석하였다. 창업정책과 교육은 청년창업사관학교 등의 제도를 통해 대부분 대학생 및 청장년층을 위주로 진행되고 있고, 또 이들을 대상으로 사회적지지나 제도적지원이 창업의지에 미치는 영향 등에 대한 연구는 활발히 진행되고 있는 반면, 베이비부머에 대한 연구는 복지부문에 치우치고 있고 실제로 이들은 은퇴 후 생계를 위해 치밀한 준비없이 생계형 창업에 뛰어들고 있으나, 이 베이비부머를 대상으로 한 사회적지지가 기회형 창업 추진에 필요한 창업기회역량에 미치는 영향에 관한 연구는 거의 없다시피 하다. 이에 본 연구는 사회적지지가 베이비부머의 창업기회역량에 미치는 영향을 알아보기 위해 주로 서울시와 경기도 일원에 거주하는 베이비붐 세대들로부터 수집한 설문지 387부를 실증 분석을 실시하였다. 분석 결과 첫째, 사회적지지가 창업기회역량의 기회인식과 기회평가 모두에 유의한 영향을 미치는 것으로 나타났다. 둘째, 사회적지지가 창업자기효능감에 미치는 영향에서는 정서적, 물질적 지지만 자신감에 유의한 영향을 미치고, 정서적지지와 평가적지지만 자기조절효능감에 유의한 영향을 미치고, 정서적지지와 물질적지지만이 과업도전감에 유의한 영향을 미치는 것으로 나타났다. 셋째, 창업자기효능감 중 자기조절효능감과 과업도전감 만이 창업기회인식에 유의한 영향을 미치는 것으로 나타났고, 자신감, 자기조절효능감 및 과업도전감 모두가 기회평가에 유의한 영향을 미치는 것으로 나타났다. 넷째, 사회적지지가 창업자기효능감을 매개하여 창업기회역량에 미치는 간접효과는 부분적으로 유의한 것으로 나타났다. This study analyzed the effects of social support on entrepreneurial opportunity competence for Baby boomer (born in 1955-1963), focusing on mediating effect of entrepreneurial self-efficacy. The governmental start-up policy and entrepreneurship education are mostly conducted for the college students and young generation mainly through such programs as the youth start-up school. In addition, studies on the effects of social support and institutional support on the entrepreneurial intention of young generation entrepreneurs are being actively pursued. Meanwhile, the study for baby boomers is on the welfare side mainly. Although they are starting to make their living-based business without prior careful preparation for their livelihood after retirement, while there is little study on the effect of social support for this baby boomer on entrepreneurial opportunity competence needed for opportunistic entrepreneurship. Therefore, in this study, in order to investigate the effect of social support on Baby boomer's entrepreneurial opportunity competence, an empirical analysis of the 387 questionnaires collected by the baby boomers living in Seoul and Gyeonggi provinces were conducted. As a result of analysis, First, Social support has a significant effect on both Opportunity recognition and Opportunity assessment of entrepreneurial opportunity competence. Second, In the effects of social support on self-efficacy were found to be significant in Emotional and Instrument support only on Self-confidence, In Emotional support and Feedback support only on Self-regulated efficacy & Emotional support and Instrument support only on Goal challenge were found to be a significant effect. Third, Self-regulated efficacy and Goal challenge in the Entrepreneurial self-efficacy on Entrepreneurial opportunity recognition were found to be a significant effect. All Self-confidence, Self-regulated efficacy & Goal challenge in the Entrepreneurial self-efficacy on Entrepreneurial opportunity assessment were found to be a significant effect. Fourth, Indirect effect of social support on entrepreneurial opportunity competence mediated by Entrepreneurial self-efficacy was found to be partially significant.

항공교통관제사의 감정통제가 직무몰입과 조직충성도에 미치는 영향

김상수,김기웅,최진영,이명우,최연철,Kim, Sang Soo,Kim, Kee Woong,Choi, Jin Young,Lee, Myung Woo,Choi, Youn Chul 한국항공운항학회 2016 한국항공운항학회지 Vol.24 No.4

Air Traffic Controllers (ATC) are also essential to the efficiency of airports and the airline industry. With the increasing volume of traffic, managing flights is a complex and sometimes very stressful job. ATC is using radar and other technology to track planes 'en route' between airports and keep in touch with pilots. Alternatively, ATCs are liaising with the planes on approach. However, ATC's working condition is getting more stressful, as the volume of air traffic increases. Thus this paper tried to research cognitive emotional regulation, job satisfaction, and job involvement and organizational committment of ATCs under the stressful work condition, taking care of safety of a couple of hundreds passengers per plane. Using CERQ survey sheet (Cognitive Emotional Regulation Questionnaire), it was found out that positive thinking and acceptance of self-blame have a significant impact on job satisfaction, work absorption and organizational Loyalty.

Lingualized Occlusion에 의한 하악응력의 광탄성학적 분석

김상수,정재헌,Kim, Sang-Soo,Chung, Chae-Heon 대한치과보철학회 1988 대한치과보철학회지 Vol.26 No.1

There is a little scientific documentation reporting the stress, distribution to the edentulous mandible by different concepts of occlusal scheme. So, this study was to investigate the hypothesis that the magnitude and distribution of the occlusal stresses, transmitted through a mandibular complete denture base to the edentulous mandible, would be influenced by the lingualized occlusion. This investigation was performed to analyze the stresses induced in a three-dimensional photoelastic edentulous mandible, when a load is applied to the denture arranged into lingualized occlusion in centric relation, lateral and protrusive functional position. The mounted denture on a Dentatus Type ARO articulator was loaded in a pure vertical direction with 15kgs on the center of articulator in each case and the stresses were frozen into epoxy edentulous model at $127^{\circ}C$ in the stress freezing furnace. The stress-frozen epoxy models were sliced with diamond disc saw into 4mm thick. The slices were examined with a circular polariscope. The results were as follows: 1. In centric relation, the stresses were low at anteriors, and gradually increase to the premolar, molar area and highest at the first molar and gradually decrease from the second molar and lowest at the retromolar pad region. The lingual side showed higher stresses than labiobuccal side. 2. In lateral functional position, the working side showed higher stresses than the balancing side. In working side, the lingual side showed higher stresses than the buccal side and in balancing side, the buccal side showed higher stresses than the lingual side. 3. In protrusive position, stress distribution was symmetrical on the posteriors and the stresses were concentrated at the labial side of the anteriors.

하악골운동 추적을 위한 단순기록장치 고안에 관한 연구

김상수,윤창근,Kim, Sang-Soo,Yoon, Chang-Keun 대한치과보철학회 1987 대한치과보철학회지 Vol.25 No.1

The purpose of this study was to improve limitations and disadvantages of the mechanical pantograph and the Visi-Trainer, and to design the reliable and reproducible device mandibular movement tracking device (MMTD) that is more simple, convenient and save the chair time than the mechanical pantograph and Visi-Trainer. MMTD was consist of head frame, horizontal bar, condylar path tracking stylus holders, anterior path tracking stylus holder, two condylar path plastic recording plates, one anterior path plastic recording plate, toggles and open occlusal clutch. To prove the reliability and reproducibility of MMTD, a five adults were selected and mandibular condylar movement was recorded one time by the mechanical pantographic tracing and MMTD. The border movement recording of the mandibular incisor (frontal, sagittal and horizontal) was also recorded by Visi-Trainer and the MMTD. The obtained results were as follows; 1. The condylar movement path (sagittal, horizontal) of the MMTD was not coincidence with that of mechanical pantograph. 2. Measurements of the angulation which established between working and balancing path records by use of the mechanical pantograph and MMTD, there was no significance. 3. In a view of MMTD's reproducibility, there was revealed almost similar recording pattern. 4. The border movement recording of the mandibular incisor by the MMTD and the Visi-Trainer showed almost same reliability and reproducibility. 5. The subjects were able to his original mandibular movements by use of open occlusal clutch in the MMTD.

비 참조 QoE를 이용한 영상품질 측정 및 통합품질 관리 시스템의 설계

김상수,박동수,Kim, Sang-Soo,Park, Dong-Soo 한국정보기술전략혁신학회 2009 情報學硏究 Vol.12 No.3

This Paper provides perceptual metrics for video quality based on properties of human visual system, and audio quality based on human audition. All metrics work without reference signals, allowing non-intrusive, in-service measurements. A simple and easy-to-learn user interface displays the metrics and saves them in popular file formats like CSV. In this paper, proposed method was able to various and corrective measurement for the multimedia service video quality. As that it was able to application to set up service guide line and the methode of measurement and system for the set up standardization of the high quality video service.

중년 남환에서 다병소성(多病巢性) 골수염으로 오진된 Langerhans Cell Histiocytosis (LCH)의 치험례

김상수,박형식,윤현중,허진영,김진권,정재호,Kim, Sang-Soo,Park, Hyung-Sik,Yong, Hyun-Jung,Huh, Jin-Young,Kim, Jin-Kwon,Jung, Jae-Ho 대한악안면성형재건외과학회 1997 Maxillofacial Plastic Reconstructive Surgery Vol.19 No.1

Langerhans Cell Histiocytosis(Idiopathic Histiocytosis, Histiocytosis-X) is most often found in children and young adults, and cell proliferation with specific phenotype shows ultrastructural and immunohistochemical similarities with Langerhans Cells that normally exist in epithelium and mucosa. This disease occurs as single or multiple lesions in skull, ribs, vertebrae, mandible and long bones, and when it involves mandible, clinical sign and symptoms such as bone swelling and pain are noticed. When it involves alveolar bone, severe tooth mobility as well as gigival inflammation, proliferation, and ulceration are commonly found, and so it is not easy to differentiate it from general inflammatory diseases. Any local lesion at the tooth apex on the x-ray view needs to be differentiated from inflammatory disease, and multiple lesions from multiple ostoeoma and chronic multifocal osteomyelitis. This case is LCH in 51-year-old male patient ; this is a rare case, for the patient belongs to an age group with very low incidence rate of the disease. although three-timed biopsy tests and longterm observation at two university hospitals, it was misdiagnosed as multifocal osteomyelitis.