Die Kabelkommunikationspolitik in Sudkorea

송해룡 圓光大學校 1994 論文集 Vol.28 No.1

본 논문은 방송환경의 변화와 새로운 정보통신기술의 도입에 따른 새로운 방송정책의 방향을 모색해 보고 있다. 산업화된 국가의 방송정책- 특히 케이블텔레비젼과 관련하여- 에 비추어 우리의 방송정책이 추구해야 할 방송철학적 지향점을 논술하고 그 문제점을 지적하고 있다. 본 논문은 방송정책이 이제는 정권정책적 차원을 떠나서 산업정책과 문화정책의 맥락에서 이루어져야 할 것을 주장하며 그 철학적 토대를 독일의 공영방송에 비교해 보고 있다. 케이블텔레비젼의 도입을 바로 앞에 두고 정책적 틀을 점검하며 성공적인 도입에 필요한 몇가지 전제조건을 서술하였다. 고전적인 미디어 철학에 바탕을 둔 뉴미디어 정책은 실패할 수 밖에 없기 때문에 케이블 방송, 위성방송의 도입에 따른 새로운 혁신적인 방송정책이 요구되며 새로운 방송법 개정이 필요함을 논하고 있다.

1930년대 한국 문학에 나타난 T.S 엘리어트의 영향 : 최재서와 김기림을 중심으로

남송우,정해룡 국제비교한국학회 2000 비교한국학 Comparative Korean Studies Vol.6 No.-

This paper aims to investigate the influence of T.S. Eliot on two major Korean critics of 1930s, Jae-Seo Choi and Key-Lim Kim from the comparative perspective. We have come to the following conclusions. First, the influence of T.S. Eliot on Jae-Seo Choi can be found mainly in his early criticism through "Tradition and the Individual Talent" and "The Function of Criticism." Secondly, Choi did not apply Eliot's critical theory to his practical analysis of Korean works of art. Therefore, it can be concluded that Eliot's critical theory was not fully practiced but discussed only as a level of introduction. Thirdly, Kims critical methodology was influenced by the Eliot's theory of impersonality, but his understanding of it seems superficial because he was not preoccupied with Eliot by trying to track down other critics such as Stephen Spender and I.A. Richard. In conclusion, there is no doubt that Eliot's critical theory exerted an influence on the Korean critics of the 1930s, but his theory was not elaborated to the extent that it should be received and examined critically.

경골 골수정 고정술후 교합나사의 파단

박형빈,강번중,송해룡,구경회,정순택,조세현 대한골절학회 2002 대한골절학회지 Vol.15 No.4

목 적 : 경골 골절에서 골수정 고정술후 발생하는 교합나사 파단의 빈도와 발생 원인을 밝히고자한다. 대상 및 방법 : 1995년 3월부터 2000년 10월까지 골수정으로 치료하였던 경골 간부골절 82예중 내고정물 파단이 발생하거나 골유합이 이루질 때까지 추시 가능하였던 75예를 대상으로 하였다. 내고정물 파단 빈도와 위치, 골절의 양상, 술후 골절부 신연 및 골유합 이상 여부를 조사하였다. 결 과 : 교합나사 파단은 7예였고 (9.3%), 근위부 두 번째 나사의 파단이 가장 흔하였다. 교합나사으 ㅣ파단은 AO분류 B형과 C형 골절, 술후 골절부가 신연된 경우, 개발성골절, 자연유합 및 불유합의 경우 발생하였다. 결 론 : 교합나사 파단의 주된 요인은 골절부의 골과 골 접촉이 불안정하기 때문이며, 개방성 골절, 지연유합 및 불유합도 교합나사 파단의 위험인자라고 생각한다. 교합나사 파단을 예방하기 위해서는 수술시 골절부 신연을 피해야하며 골절부 골접촉이 불안정한 경우 완전 체중부하를 골유합시까지 제한하여야할 것으로 생각한다. Purpose : The aims of this study were to investigate the prevalence and the causes of crew breakage in tibia nailing. Materials and Methods : Between 1995 and 2000, eighty-two tibial diaphyseal fracture were treated with interlocking nails. The loss of follow-up was 7 cases. We retrospectively reviewed seventy-five cases. We investigated the rate and location of metal failure and evaluated the fracture pattern, the presence of distraction after nailing and union abnormality. Results : Screw breakage was identified in seven cases (9.3%) and most frequently occurred on the second proximal locking screw. Screw breakage occurred in AO type B or C type fractures, fracture site distraction after nailing, open fracture, delayed union and nonunion. Conclusion : The main cause of screw breakage is unstable bone to bone contact on the fracture site caused by comminution of distraction. The open fracture, delayed union, and nonunion also contributing factors for screw breakage. For preventing screw breakage, it is necessary to avoid fracture site distraction and delay full weight bearing in cases having unstable fracture site contact.

연장 가골에 골 이식 대체물 투여가 골 경화에 미치는 영향 : 가토 경골에서의 방사선 및 골 밀도의 변화 Changes of Radiography & Bone Mineral Density in the Tibia of Rabbits

오창욱,김풍택,박병철,송해룡,박일형,백준호,박형진 경북대학교 병원 2003 경북대학교병원의학연구소논문집 Vol.7 No.1

목적 : 골 연장술 후 생기는 연장 가골에 황화 칼슘과 이종 이식골을 투여하여 골 경화 속도에 대한 영향을 알아보기 위한 실험이었다. 연구대상 및 방법 : 성장중인 뉴질랜드 화이트 토끼(2.0-2.5㎏)의 경골 간부에 골막을 보호하고, 절골술을 시행하고, 5일간의 휴지기후 외고정 장치를 이용하여 1주일 동안 7㎜가 연장될 때까지 하루 1㎜씩 2회의 리듬을 가지고 골 연장을 실시하였다. 제1 실험 군 7마리에는 연장이 끝난 직후 황화 칼슘(Osteoset^(ⓡ), Wright medical USA) 1정, 제 2 실험 군 7마리에는 이종 이식골의 일종인 Lubboc 5㎟을 각각 연장된 가골 부에 주입하고, 단순 연장한 대조군 7마리와 함께, 방사선 및 골 밀도비를 측정하고 추시하여, 골 경화의 진행속도를 비교하였다. 방사선 촬영은 전후면 및 측면사진을 1주 간격으로 촬영하였고, 골밀도 측정은 DEXA(dual energy X-ray absorptionmetry, Lunar^(ⓡ)) 장치를 2주일 간격으로 시행하였다. 결과 : 방사선 소견상, 제 1실험군의 연장가골의 완전 경화시간은 평균 14주, 제 2실험군은 154 주로 각각 대조군의 16.9주보다 단축되었으며, 골 밀도 비에서도, 두 실험군에서 최고치가 대조군의 값보다 높고, 최고치까지의 경과기간도 빨랐다. 결론 : 본 연구에서 연장 가골에 황화칼슘 및 이종 이식골의 투여가 골 경화의 기간을 단축시킬 수 있고, 외고정 장치의 빠른 제거에 도움이 될 수 있음을 알았다. Purpose : This study was designed to know the effect of calcium-sulfate and xenograft on the distracted callus after lengthening. Materials & Methods : We had operation of subperiosteal osteotomy and external fixation on the tibial diaphysis of young New Zealand White rabbits(2.0-2.5㎏); after 5 days of latency period, 7㎜(1㎜/day, 2times/day) of tibial lengthening was reached in a week. At 1 week after lengthening, the 1st experimental group of 7 rabbits received a pellet of calcium sulfate(Osteoset, Wright medical, USA) in the distraction gap, and the 2nd experimental group of 7 rabbits received 5㎜ 2 of xenogrfat(Lubboc) in the distraction gap. But, the control group of 7 rabbits did not receive any of above materials. We compared three groups with the changes of radiographic findings at every week and bone mineral ratio(DEXA) at every two weeks. Results : The time to complete consolidation of distraction callus of both experimental group(calcium sulfate;14 weeks, xenograft; 15.4 weeks) was shorter than that of control group(16.9 weeks) in radiographic findings. Maximum value of bone mineral ratio of distraction callus was higher and the time to reach the highest value was also shortened in the both experimental group compared to control group. Conclusion : By use of bone substitutes as like calcium sulfate or xenograft in the distraction callus with external fixator, it may be possible to shorten the consolidation period and the fixator-wearing period.

Operative Versus Nonoperative Management of Pediatric Proximal Humerus Fractures: A Meta-Analysis and Systematic Review

Hae-Ryong Song,Mi Hyun Song 대한정형외과학회 2023 Clinics in Orthopedic Surgery Vol.15 No.6

Background: Proximal humerus fractures account for 2% of all pediatric fractures. A nonoperative approach is the treatment of choice for most of these fractures; however, debates continue regarding the treatment of displaced fractures, especially in adolescents. In this study, we aimed to examine demographic data and treatment strategies for proximal humerus fractures in the pediatric population by conducting a meta-analysis. Additionally, we investigated the preferred surgical technique for operative treatment. Methods: A systematic online search of databases, including Embase, Medline, PubMed, and Cochrane Library, was conducted to identify studies that matched our search criteria. Data collection was completed on May 1, 2022. Age, sex, degree of angulation, Neer-Horwitz classification, Salter-Harris classification, treatment method (operative vs. nonoperative), and instrument used for internal fixation were classified and documented. Effect size analysis was performed using odds ratios (ORs) or weighted mean differences (WMDs) with 95% confidence intervals (CIs), based on data types. Results: Eight studies met our inclusion criteria. Overall, 33% of the patients (n = 195) underwent operative treatment, whereas 67% of them (n = 392) received nonoperative treatment. Among the demographic risk factors, severely displaced fracture type (OR, 10.00; 95% CI, 1.56−64.22; p = 0.020) and older age (WMD, 3.26; 95% CI, 2.29−4.23; p < 0.001) were significantly associated with operative treatment. There was no significant difference in the preference for percutaneous pinning or intramedullary nailing, the most frequently employed surgical techniques (OR, 5.09; 95% CI, 0.65−39.58; p = 0.120). Conclusions: The operative treatment rate in pediatric proximal humerus fractures was 33%, which increased to 60% in severely displaced fractures (Neer-Horwitz grade III/IV). Severely displaced fractures and older age significantly contributed to the establishment of a treatment strategy for operative treatment. The choice of surgical technique may seem to be based on the anatomical location of the fracture rather than the surgeon’s preference.

The Effect of Platelet Rich Plasma on Osteogenesis in a Long Bone Segmental Defect: Is the Platelet Rich Plasma Effective for Bone Reconstruction?

( Hae Ryong Song ),( Ji Hoon Bae ),( Jae Hak Park ),( Min Cheol Choi ),( Swee H Teoh ),( Hak Jun Kim ),( Hong Chul Lim ),( Dong Ho Kum ) 한국조직공학과 재생의학회 2010 조직공학과 재생의학 Vol.7 No.4

The effect of platelet rich plasma (PRP) on osteogenesis in the defect of long bone is controversial. The purpose of this study was to investigate the effect of PRP on new bone formation in a segmental defect of rabbit ulna. Unilateral 15 mm mid-diaphyseal defect was created in the ulna of twenty skeletally mature New Zealand White rabbits. The defects in ten rabbits each were treated with autogenous PRP in a polycarprolactone scaffold (PRP treated group) and remain empty defect without any material (contol group). 12 weeks and 20 weeks after surgery, five rabbits in each group were sacrificed to assess new bone formation. New bone formation assessed by plain radiography, microCT scan and histology did not differ significantly between PRP treated group and control group. This study demonstrated that PRP alone had no evidence of promoting osteogenesis in a long bone segmental defect of rabbit ulna.

External Fixation of Long Bone Fractures in Children

Hae-Ryong Song(송해룡),Se-Hyun Cho(조세현),Kyung-Hoi Koo(구경회),Young-Sik Min(민영식),Yeun-Chun Jung(정연천),Sun-Chul Hwang(황선철),Jai-Soo Kim(김재수),Ji-Yeun Kim(김지연) 대한정형외과학회 1994 대한정형외과학회지 Vol.29 No.6

<i>PHEX</i> Gene Mutations and Genotype-Phenotype Analysis of Korean Patients with Hypophosphatemic Rickets

Song, Hae-Ryong,Park, Joo-Won,Cho, Dae-Yeon,Yang, Jae Hyuk,Yoon, Hye-Ran,Jung, Sung-Chul KOREAN ACADEMY OF MEDICAL SCIENCE 2007 JOURNAL OF KOREAN MEDICAL SCIENCE Vol.22 No.6

<P>X-linked hypophosphatemic rickets (XLH) results from mutations in the <I>PHEX</I> gene. Mutational analysis of the <I>PHEX</I> gene in 15 unrelated Korean patients with hypophosphatemic rickets revealed eight mutations, including five novel mutations, in nine patients: two nonsense mutations, two missense mutations, one insertion, and three splicing acceptor/donor site mutations. Of these, c.64G>T, c.1699C>T, c.466_467 insAC, c.1174-1G>A, and c.1768+5G>A were novel mutations. To analyze the correlation between genotype and phenotype, phenotypes were compared between groups with and without a mutation, in terms of mutation location, mutation type, and sex. Skeletal disease tended to be more severe in the group with a mutation in the C-terminal half of the <I>PHEX</I> gene, but no genotype-phenotype correlation was detected in other comparisons. Further extensive studies of the <I>PHEX</I> gene mutations and analyses of the genotype-phenotype relationships are required to understand PHEX function and the pathogenesis of XLH.</P>

타분야 산.학.연.병 공동연구회 운영 현황 1 ‘대한정형외과학회 산학연파트너링’ 연구회

Hae Ryong Song 대한외과학회 2020 대한외과학회 학술대회 초록집 Vol.2020 No.11

Regulation of Arabidopsis Circadian Clock by De-Etiolated 1 (DET1) Possibly via Histone 3 Acetylation (H3Ac)

Hae-Ryong Song(송해룡) 한국생명과학회 2012 생명과학회지 Vol.22 No.8

자기 현가적(self-sustaining) 조절 장치인 생체시계는 24시간 주기의 생체리듬을 조절하며 또한 생물체로 하여금 매일 변화하는 자연환경의 외부 신호를 인지할 수 있도록 해준다. 생체시계 유전자의 발현 조절은 전사/해독의 역환류 기작을 통해 이루어진다. 애기장대 LATE ELONGATED HYPOCOTYL (LHY)와 CIRCADIAN CLOCK-ASSOCIATED 1 (CCA1)는 아침에 최고조로 발현되며 해독된 LHY and CCA1는 저녁에 최고로 발현되는 TIMING OF CAB EXPRESSION1 (TOC1)의 발현을 억제한다. TOC1단백질은 LHY와 CCA1 발현을 촉진시킴으로써 생체시계의 핵심 진자(oscillator)를 형성한다. 동물에서 생체시계의 주요 전사 인자인CLOCK은 아세틸화효소활성 기능을 가지며, 이는 생체시계의 기능 유지에 아세틸화의 중요함을 의미한다. 하지만 애기장대 생체시계에 아세틸화를 담당하는 인자에 대한 정보는 현재 보고된 바가 없다. 본 연구에서 DET1 (De-Etiolated1)는 암조건하에서 애기장대 생체시계 관련 핵심인자 중 하나인 LHY발현을 억제하는데 필요하며 이의 억제는 H3Ac 조절을 통해 이루어짐을 증명하였다. 하지만 LHY 아세틸화를 담당하는 효소의 발굴 및 이들 효소와 DET1과의 연결을 찾는 문제는 여전히 미재로 남아있다. The circadian clock is a self-sustaining 24-hour timekeeper that allows organisms to anticipate daily-changing environmental time cues. Circadian clock genes are regulated by a transcriptional-translational feedback loop. In Arabidopsis, LATE ELONGATED HYPOCOTYL (LHY) and CIRCADIAN CLOCK-ASSOCIATED 1 (CCA1) transcripts are highly expressed in the morning. Translated LHY and CCA1 proteins repress the expression of the TIMING OF CAB EXPRESSION 1 (TOC1) transcripts, which peaks in the evening. The TOC1 protein elevates the expression of the LHY and CCA1 transcripts, forming a negative feedback loop that is believed to constitute the oscillatory mechanism of the clock. In mammals, the transcription factor protein CLOCK, which is a central component of the circadian clock, was reported to have an intrinsic histone acetyltransferase (HAT) activity, suggesting that histone acetylation is important for core clock mechanisms. However, little is known about the components necessary for the histone acetylation of the Arabidopsis clock-related genes. Here, I report that DET1 (De-Etiolated1) functions as a negative regulator of a key component of the Arabidopsis circadian clock gene LHY in constant dark phases (DD) and is required for the down-regulation of LHY expression through the acetylation of histone 3 (H3Ac). However, the HATs directly responsible for the acetylation of H3 within LHY chromatin need to be identified, and a link connecting the HATs and DET1 protein is still absent.