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송현섭(Hyun Seop Song),도호정(Ho Jeong Do),신재권(Jae Kwon Shin),김창은(Chang Eun Kim),강병구(Byeong Gu Gang),전세환(Se Hwan Jeon),고원일(Won Il Koh),조용규(Yong Kyu Cho),김노현(No Hyeon Kim) 대한스포츠한의학회 2016 대한스포츠한의학회지 Vol.16 No.1
Objects This study was designed to compare the effect of muscle relaxation pharmacopuncture Therapy on the patients with neck pain caused by cervical herniated disc Methods We investigated 5 cases of patients with neck pain cased by cervical herniated disc, who had been treated from November 2014 to September 2015. We measured the effectiveness of treatment using numeric rating scale(NRS) and neck disability in-dex(NDI). Results All patients who received Muscle relaxation pharmacopuncture treatment reported an improvement in their symptoms. There was a significant change in the NRS and NDI scores before and after treatment. Conclusions According to the result of this study, it was suggested that Muscle relaxation pharmacopuncture are effective in reducing neck pain casued by cervical herniated disc. Further well designed prospective study is needed.
Vitamin D₃와 TGF-ß가 치주인대세포 활성에 미치는 영향에 관한 연구
송현섭(Song Hyun Sup),김상철(Kim Sang Cheol) 대한치과교정학회 1998 대한치과교정학회지 Vol.28 No.4
골 성장 및 개조에 관여하는 전신적 조절인자인 1,25-(OH)<sub>2</sub>D<sub>3</sub>와 국소적 조절인자인 TGF-β가 사람의 치주인대세포 기능에 미치는 영향을 관찰하고자 그 인자들을 단독 혹은 복합적으로 치주인대세포에 가하여 그 활성 변화를 측정 하여 다음과 같은 결과를 얻었다. 1. 10ng/ml 농도의 vitamin D<sub>3</sub>를 치주인대세포에 가한 후 배양 1, 2, 3 일째의 활성은 대조군과 차이가 없었으나, 50ng/ml 농도로 가한 후 배양 3일째에는 대조군에 비해 유의하게 증가하였으며, 100ng/ml 농도에서는 배양 1, 2, 3일째에 유의하게 증가하였다. 2. 0.1ng/ml 농도의 TGF-β를 치주인대세포에 가한 후 배양 1, 2, 3일째의 활성은 대조군과 유의한 차이가 없었으나, 1ng/ml나 5ng/ml 농도의 TGF-β를 가한 경우 배양 3일째 유의하게 증가되었으며 10ng/ml 농도의 경우에는 배양 2, 3일째에 유의하게 증가하였다. 3. 1ng/ml 농도의 TGF-β와 다양한 농도의 vitamin D<sub>3</sub>를 혼합투여한 경우, 100ng/ml 농도의 vitamin D<sub>3</sub>로 배양 3일째에 유의한 활성 증가를 볼 수 있었다. 4. 5ng/ml 농도의 TGF-β와 다양한 농도의 vitamin D<sub>3</sub>를 혼합투여한 경우, 10, 50, 100ng/ml의 vitamin D<sub>3</sub>에서 공히배양 2일째부터 유의한 활성 증가를 보였으나 10ng/ml에서는 배양 3일째에 그 활성이 유지되지 못하였다. 5. 10ng/ml 농도의 TGF-β와 다양한 농도의 vitamin D<sub>3</sub>를 혼합투여한 경우, 50ng/ml의 vitamin D<sub>3</sub>에서는 배양 2일째부터 100ng/ml의 vitamin D<sub>3</sub>에서는 1일째부터 유의한 활성 증가를 보였다. TGF- β is a polypeptide with multiple physiological functions in regulation of cell-to-cell interaction and in growth and development. The active form of vitamin D<sub>3</sub>, 1,25-dihydroxycholecalciferol [1.25-(OH)<sub>2</sub>D<sub>3</sub>], is one of the most potent stimulators of osteoclastic acitivity. The purpose of this study was to evaluate the effect of Vitamin D3 and/or TGF- β on the periodontal ligament(PDL) cells. Human PDL cells were prepared from the first premolars extracted for the orthodontic treatment and were incubated in the environment of 37°C, 5% CO<sub>2</sub> and 95% humidity. 10, 50 or 100ng/ml of 1,25-(OH)<sub>2</sub>D<sub>3</sub>. and 0.1, 1, 5 or 10ng/ml of TGF- β were administered to the culture wells, separately or in combination. And the viability of PDL cells was evaluated by MTT assay. The obtained results were as follows. 1. The viability of PDL cells in 10ng/ml of vitamin D<sub>3</sub> was not significantly differenent from that of the control group at 1, 2 and 3-day of cultivation, but it was significantly increased in 50ng/ml of vitamin D<sub>3</sub> at 3-day and in 100ng/ml of vitamin D<sub>3</sub> at 2 and 3-day. 2. The viability of PDL cells in 0.1ng/ml of TGF- β was not significantly differenent from that of the control group at 1, 2 and 3-day of cultivation, but it was significantly increased in 1 and 5ng/ml of TGF-β at 3-day of cultivation, and in l0ng/ml of TGF- β at 2 and 3-day of cultivation. 3. In case of admixture of lng/ml of TGF-β and the various concentrations of vitamin D<sub>3</sub>, the viability of PDL cells was significantly increased in the admixture of 100ng/ml of vitamin D<sub>3</sub> at 3-day of cultivation 4. In case of admixture of 5ng/ml of TGF-β and the various concentrations of vitamin D<sub>3</sub>, the viability of PDL cells began to be increased from 2-day of cultivation in the admixture of 10 50 and 100ng/ml of vitamin D<sub>3</sub>, but it was not maintained at 3-day in the admixture of 10ng/ml of vitamin D<sub>3</sub> 5. In case of admixture of 10ng/ml of TGF-β and the various concentrations of vitamin D<sub>3</sub>, the viability of PDL cells was significantly increased in the admixture of 50ng/ml of vitamin D<sub>3</sub> at 2 and 3-day of cultivation, and in the admixture of 100ng/ml at 1, 2 and 3-day.
뉴메모리를 이용한 고성능 및 호환성을 위한 I/O 변환 계층 기술
송현섭(Hyunsub Song),문영제(Young Je Moon),노삼혁(Sam H. Noh) 한국정보과학회 2015 정보과학회논문지 Vol.42 No.4
컴퓨팅 시스템이 급속도로 발전함에 따라 빠른 데이터 처리가 요구되고, 이를 위한 고성능 저장 장치 기술이 요구되고 있다. 차세대 메모리인 뉴메모리는 고성능 저장장치에 활용될 수 있는 장점을 가진다. 뉴메모리는 비휘발성을 가지고 있으며, DRAM (Dynamic Random Access Memory)에 가까운 접근 속도를 가지고 있어서, 업계 및 학계로 하여금 새로운 저장장치의 역할을 할 수 있을 것이라는 기대를 받고 있다. 본 연구는 뉴메모리를 저장장치로 활용하기 위한 기술로 NTL (New memory Translation Layer)을 제시한다. NTL은 기존의 디스크 파일시스템을 뉴메모리에서 사용할 수 있게 하여 높은 호환성을 제공하며, 블록 단위가 아닌 바이트 단위로 입출력 데이터를 처리하여 높은 데이터 처리량을 제공한다. 본 논문에서는 NTL의 설계에 대해 서술하며, NTL을 통해 얻는 성능 이점을 보여주기 위한 실험 결과를 제시한다. The rapid advancement of computing technology has triggered the need for fast data I/O processing and high-performance storage technology. Next generation memory technology, which we refer to as new memory, is anticipated to be used for high-performance storage as they have excellent characteristics as a storage device with non-volatility and latency close to DRAM. This research proposes NTL (New memory Translation layer) as a technology to make use of new memory as storage. With the addition of NTL, conventional I/O is served with existing mature disk-based file systems providing compatibility, while new memory I/O is serviced through the NTL to take advantage of the byte-addressability feature of new memory. In this paper, we describe the design of NTL and provide experiment measurement results that show that our design will bring performance benefits.
직장-가정갈등이 직업정체성 및 직무만족에 미치는 영향 - 호텔종사원을 중심으로-
송현섭 ( Hyun Sub Song ),황명호 ( Myung Ho Hwang ) 한국관광산업학회 2013 Tourism Research Vol.38 No.2
Due to the modern advancements, selecting the suitable path for one`s characteristics after accurately understanding one`s self in addition to identity for one`s profession is important to accomplish an adaptable and successful professional life for an individual in the diversified, specialized and complex professional world. However, many workers are facing role-conflicts between work and homes due to various timely environments. Thus, the present study recognizes the hotel employees and conducts empirical analysis on the influences of work-family conflicts on occupational identity and the influences of occupational identity on job satisfaction. As a result of the analysis, the following results were drawn. First, as a result of verifying influential relationship between work-family conflicts and occupational identity, work-family conflicts appeared to influence the beliefs for autonomy, beliefs for services and sense of vocation among the low variables of occupational identity. Secondly, as a result of verifying the influential relationship between occupational identity and job satisfaction, the beliefs for autonomy, beliefs for services and sense of vocation among the low variables of occupational identity were influential to job satisfaction.