도시 경관계획의 현황과 개선방안에 관한 연구

신지훈 慶州大學校 2005 論文集 Vol.18 No.1

The purpose of this study is to investigate the circumstances of urban visual landscape planning in Korea, and to suggest improvement of urban visual landscape planning. There are some approaches in devising urban visual landscape planning ; ecological approach, formal aesthetic approach etc. However, it needs comprehensive plan between ecology and formal aesthetic approach. For more reasonable urban visual landscape plan, first of all, it is important to have citizen's consensus about image of urban landscape itself, and to have good relationship with urban general master plan. Secondly, the indicators for urban visual landscape planning should have reasonable basis and explanation considering variable circumstances. So, repeated studies in this line could refine the urban visual landscape plan and eventually contribute to the improvement of urban visual landscape.

라우팅 브로커링에 기초한 분산 데이터베이스 액세스 메커니즘의 설계

신혜균,장지훈,김정선,최중민,우훈식 漢陽大學校 工學技術硏究所 1998 工學技術論文集 Vol.7 No.1

현재의 클라이언트 서버 환경에서는 수많은 이질적인 데이터베이스 서버들이 LAN과 WAN상에 분산되어 있다. 따라서 이들 서버의 위치에 관계없이 일관되고 확장성 있는 액세스 메커니즘을 클라이언트에게 제공하는 것이 필요하다. 본 논문에서는 라우팅 브로커링에 기초하여 분산되고 이질적인 데이터베이스에 대한 일관되고 위치 투명성과 확장성 있는 액세스 매커니즘을 제시한다. 본 고에서 제안한 메커니즘은 클라이언트와 다수의 서버사이의 중간계층으로서 작동되도록 java와 CORBA 그리고 JDBC의 최신 기술을 적용시켜 설계되었다. In current client/server environments, it is not uncommon to have multiple, heterogeneous database servers scattered on LAN or WAN. Therefore, it is desirable to provide clients with uniform and scalable access mechanism to connect to those servers in a location-transparent way. In this paper, we propose a uniform, location-transparent, and scalable access mechanism based on routing brokering scheme to access distributed, heterogeneous databases on LAN. The proposed mechanism is designed to act as a middle tier between clients and multiple servers, and adopts Java, CORBA and JDBC as its state -of-the -art techniques.

가막사리(Bidens tripartita L.)와 미국가막사리(Bidens frondosa L.) 종자의 발아에 미치는 몇가지 요인

신혜정,신종섭,김지훈,김학윤,이인중,신동현,김길웅 경북대학교 농업과학기술연구소 1999 慶北大農學誌 Vol.17 No.-

The experiments were conducted to determine the factors such as light and darkness, phytohormone and seed coat, influencing on seed germination of Bidens tripartita L. and B. frondosa. The seeds of both species were germinated when seed coat was damaged and weakened GA3 and BA stimulated germination of both species but ABA and IAA had no effect on germination of them, which ranged 50.0% to 80.0%. In B. forndosa, when inner layer of seed coat was removed, germination was highly promoted up to 96.7% compared with 10.0% germination rate in another treatments.

당뇨환자에서 비케톤성 고혈당에 동반하여 나타난 전신성 무도병 1예

신현란,김지훈,박미영 영남대학교 의과대학 2002 Yeungnam University Journal of Medicine Vol.19 No.2

Even thoght the nonketotic hyperglycemia is a metabolic disorder, it complicates hemichorea-hemiballism rarely. Moreover, generalized chorea-ballism associated with nonketotic hyperglycemia in diabetes mellitus is very rare, so has not been reported in Korean literature. Although the precise pathophysiologic mechanisms of these disorders are still poorly understood, deficiency of gamma aminobutyric acid (GABA) in nonketotic hyperglycemia or reduced GABAnergic inhibition by striatal lesion may increase inhibitory output to subthalamic nucleus. These result loss of pallidal inhibition and produce contralateral hemichorea-hemiballism. The striatal lesions, such as transient ischemia with reactive astrocytosis or small amount of petechial hemorrhage, are related with changes of magnetic resonance image (MRI) findings presumably. We report a diabetic old woman who developed generalized chorea-ballismus as a very rare complication of nonketotic hyperglycemia. Her brain MRI showed high signal intensity in left lentiform nucleus and right pallidum on T1 weighted images and low signal intensity in bilateral putamen on T2 weighted images with highly enhanced corresponding lesions on T1 weighted enhancement images.

거꾸로 수업(Flipped Learning)에 대한 과학 교사의 인식 분석

신영준,하지훈 이화여자대학교 교과교육연구소 2016 교과교육학연구 Vol.20 No.2

본 연구의 목적은 거꾸로 수업의 적용에 대한 시사점을 얻기 위해 초·중·고등학교 교사 100명을 대상으로 거꾸로 수업에 대한 교사의 인식을 파악하여 과학교과에 대한 거꾸로 수업의 적용을 위한 정보를 얻는 데 있다. 이를 위해 전문가 집단을 통해 거꾸로 수업에 대한 교사 인식 문항을 개발하였다. 교사의 인식에 대한 조사 결과 거꾸로 수업에 대한 교사의 이해 정도는 기존 연구(Park & Cha, 2015)에 비해 높아졌으며, 교사들이 과학 교과를 거꾸로 수업 적용이 적절한 교과로 인식하고 있다는 사실도 다시 확인하였다. 거꾸로 수업 도입의 영향과 필요성에서 모두 다소 긍정적인 수준인 보통 이상의 응답을 보였지만, 도입 필요성이 교육에 미치는 영향에 비해 다소 낮은 응답을 나타냈다. 수행 준비 정도에 대해 교사들은 전반적으로 다소 부족하다는 의견을 보였고, 기존 수업에 비해 거꾸로 수업이 더 많은 시간과 노력이 필요하다는 인식을 가지고 있었다. 거꾸로 수업을 성공적으로 수행하기 위해 필요한 능력으로 수업설계능력을 선택한 교사가 가장 많았으며, 학습자료 제작 능력이 그 다음이었다. 이는 Shin et al.(2016a)에서 교사들이 부담을 느꼈던 부분과 일치한다. 이와 같은 연구 결과를 통해 거꾸로 수업의 도입에 대해 교사들의 일반적인 인식은 다소 긍정적이나 실제 적용에 대해 거부감을 가지거나 수행을 위한 준비가 부족하다는 인식을 하고 있음을 알 수 있었다. 과학 교과의 경우 다른 교과에 비해 거꾸로 수업 적용에 대한 교사의 저항은 적을 것으로 예상할 수 있었고, 교사들이 기존 과학 수업의 문제점을 해결할 수 있는 대안으로 거꾸로 수업을 인식하고 있음을 확인할 수 있었다. The purpose of this study was to obtain information on the application of flipped learning and confirm the applicability of flipped learning for science class, through investigating perceptions of 100 teachers in elementary, middle and high school. For this purpose, the questions for teacher’s perceptions about flipped learning were developed by the expert group. The results were as follows : The understanding of flipped learning was higher than in previous studies (Park& Cha, 2015), and the fact that teachers are aware of science as an appropriate subject for the application of flipped learning was confirmed again. Most teachers selected instructional design skills as the most needed ability for successful implementation of flipped learning, which is followed by material production skills. Two skills are related to difficulties presented in Shin et al.(2016a). Based on these results, teachers’ opposition to flipped learning applied in science class is expected to be low, compared to other subjects. It was confirmed that the high applicability of flipped learning may be a solution to the current science class in which teachers’ lecture takes up most part of the lesson.

하악 매복 지치의 외과적 발거시 Methylprednisolone의 안면 부종 감소 효과에 대한 임상적 연구

신지훈,박진배,한지용,윤혜경,김우형,이희철 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.4

Objective : The third molars, expecially mandibular wisdom teeth, are commonly obliquely impacted, and surgical procedure with odontomy and osteotomy is necessary for their extraction. The surgical extracion of impacted wisdom teeth occasionally in duces variable discomfort. Especially, postoperative swelling, pain and limitation of mouth opening determine the degree of discomfort. For the reduction of these complicaions, drug therapy(antihistamine, enzyme, steroid), cole pack and pressure technique have been studied. It is known that the steroids are the most effective. Methods and Meterial : We selected fifty patients in their twenties, who visited Department of Dentistry, Pusan Paik Hospital from March to August in 1998. All of 50 patients has no other medical problems. Total 50 patients were randomly divided to 30 of experimental group and 20 of control group. The experimental group had orally administration of methyprednisolone 5㎎ every 8 hours 2 times preoperatively and 7 times postoperatively. Five points were marked on the patients' face, and the distances between the points were measured just before operation and 48 hours after operation. Results : Methyprednisolone reduces swelling about 50% after surgical extraction of obliquely impacted mandibular third molars with osteotomy and odontomy. The difference in the amount of tissue edema between experimental and control group was significant(p<0.01). However, there was no significant difference according to the operation time. Conclusion : It seems that the use of methylprednisolone is effective to reduce postoperative swelling following surgical extraction of third molars.

Lesch-Nyhan 증후군 환아의 자해 예방 : A CASE REPORT

이지현,김지훈,김재문,정태성,김신 大韓小兒齒科學會 2005 大韓小兒齒科學會誌 Vol.32 No.2

Lesch-Nyhan 증후군은 purine의 대사장애를 보이는 질환이다. 신생아에서 대략 1:100,000 정도의 이환율을 보이는 X염색체 열성 유전 질환으로 남자에서 흔하며, purine의 대사에 관여하는 효소인 hypoxanthine guanine phospho ribosyl transferase(HGPRT)의 결손 또는 활성 감소 결과, 과도한 요산 형성 및 과요산혈증(hyperuricemia)이 일어난다. 이 질환은 임상적으로 정신지체, 무도증(choreoathetosis), 경련성 뇌성 마비, 심각한 자해 행위가 특징이다. 이 중 자해행위는 입술과 혀, 손가락을 깨무는 경우가 흔하고, 혀와 손가락이 완전히 절단될 수도 있다. 이 경우 자해로 인한 통증뿐 아니라, 상처 부위로의 2차 감염 및 연조직 결손으로 인한 심미성이 문제가 된다. 본 증례는, 상하악 유전치의 입술 깨물기 습관에 의해 하순이 심하게 손상된 Lesch-Nyhan 증후군 환아로서, mouth guard를 이용한 보존적인 방법과 소아정신과와의 협진을 통한 신경학적 약물치료로 자해에 의 한 손상을 방지하여, 단기간에 비교적 만족할 만한 결과를 얻었기에 이를 보고하는 바이다. Lesch-Nyhan syndrome is a rare disorder of purine metabolism, first described in 1964. The incidence is estimated to be 1:100,000 birth. It is an X-linked recessive disorder in which affected males have a virtually complete deficiency of the enzyme hypoxanthine guanine phosphorybosyl transferase(HGPT) . This enzyme deficiency gives rise to excessive uric acid production and consequent hyperuricemia. Lesch-Nyhan syndrome is clinically characterized by mental retardation, choreoathetosis, spastic cerebral palsy, and severe self-mutilation behavior. Patient with Lesch-Nyhan syndrome mostly bite their lip, tongue and finger. In severe cases, partial or total amputation of the lip and tongue is common. Self-inflicted bites are often further complicated by secondary infection to injuried site as well as pain. And tissue loss by biting results in esthetic problems. This report presents a Lesch-Nyhan syndrome patient with self-mutilation, who have a destruction of perioral tissue, especially the lower lip. He was treated successfully with soft mouth guard, psychological and pharmacological method.

골수염으로 발현된 재발성 콕시디오이데스 진균증 1예

백지현,박은영,정윤숙,홍재원,채윤태,진성준,최희경,신소연,한상훈,진범식,김창오,최준용,송영구,조남훈,김준명 대한감염학회 2009 감염과 화학요법 Vol.41 No.4

Coccidioidomycosis is a fungal infection that results from inhaling the airborne arthroconidia of the Coccidioides species. It is an endemic disease in the southwest part of North America and rarely diagnosed in Korea. As tourism to endemic areas and the number of immunocompromised patients have been increasing, the incidence of this infection has increased in non-endemic areas. Treatment is usually successful with antifungal agents; however, recurrence is common. It is difficult to decide when to discontinue the antifungal treatment especially in non-endemic areas where doctors are not familiar with the disease. We report a case of recurrent coccidioidomycosis manifesting as osteomyelitis after the treatment of the patient for disseminated coccidioidal infection. The complement fixation test was a useful tool for the assessment of patient response and to evaluate suspected recurrence.

淸肝散이 急性 Ethanol 中毒에 흰쥐의 肝損傷에 미치는 影響

곽익훈,김종대,정지천,신억섭 한국한의학연구원 1996 한국한의학연구원논문집 Vol.2 No.1

Chunggansan(淸肝散) was tested for the effects on detoxication mechanism of alcohol. Chunggansan was treated firstly into samples, and then ethanol intoxicated animal models were set with them. In vitro, the level of lipid peroxide in tissue of liver proportionally decreased with the level of concentration of extract prepared from Chunggansan. In vivo, after the extract was administered to the animal model for seven days, the level of lipid peroxide in liver dependently decreased in proportion of concentration. The glutathione percentage purposely induced acute ethanol intoxicated samples, followed by Chunggansan pre-medicating administration, increased in compare with the group treated with only ethanol. Also, the enzyme activities of ALT, AST, and r-GTP in liver decreased.

3종 광중합개시제를 함유한 실험용 복합레진의 미세누출도

김지훈,신동훈 大韓齒科保存學會 2009 Restorative Dentistry & Endodontics Vol.34 No.4

현행 복합레진에서 가장 많이 사용되고 있는 광중합개시제의 일종인 camphoroquinone은 중합 효과가 적고 황색을 띠기 때문에 다른 개시제에 대한 연구가 이루어져 왔다. 이에 본 연구에서는 새로운 개시제인 OPPI (p-octyloxy-phenyl-phenyl iodonium hexafluoroantimonate)를 기존의 camphoroquinone, amine과 다양한 비율로 혼합한 다음, barium glass를 첨가한 실험용 복합레진을 제조하여 각수복재의 미세누출도를 비교, 평가하였다. 총 4종의 단량체를 제조하였으며 camphoroquinone, OPPI, amine의 조성 중량비는 다음과 같다: A군 - 0.5%, 0%, 1% / B군 - 2%, 0.2%, 2% / C군 -0.2%, 1%, 0.2% / D군 - 1%, 1%, 2%. 이후 평균 입자 크기 1㎛의 3.2% silane 처리된 barium glass를 중량비 78%로 섞어 복합레진을 제조하였다. 총 55개의 소구치에 치경부를 중심으로 원형 와동을 (직경; 근원심 폭경의 2/3,깊이; 1.5 mm) 형성한 다음, 자가부식형 접착시스템인 Hybrid Bond로 처리하고 4종의 복합레진으로 수복하였다. 연마 후 치아를 섭씨 5도와 55도에서 각기 30초씩 담궈 500회의 열순환 처리하였으며 전기화학적 방법으로 전기 전도성을 2회 (열순환 처리 후, 1주 간격으로 식염수를 교환하며 3개월 보관 후) 측정, 비교하였다. 미세누출도는 시간 경과에 따라 커지는 양상을 보였으며, 열순환 처리 직후 4종 복합레진 사이에 차이를 보이지 않았지만, 3개월 보관 후에는 D군이 가장 적었으며 C군이 가장 큰 미세누출을 보였다. 열순환 자극 직후 차이를 보이지 않았지만, 3개월 보관 후 측정치로 미루어 볼 때, OPPI와 전반적인 중합시스템이 고농도로 함유된 복합레진 (D군)과 CQ와 아민만을 사용한 전통적인 복합레진(A군)이 중합개시시스템을 저농도로 함유한복 합레진(C군)에 비해 우수한 밀폐효과를 보였다. 이는 시간의 흐름에 따라 접착계면의 퇴화가 일어났거나 일부 성분이 용해가 되어 나온 것으로 보이며 앞으로 이에 대한 더 많은 연구가 필요할 것으로 사료된다. This study was done to determine if there is any difference in microleakage between experimental composite resins, in which various proportions of three component photoinitiators (Camphoroquinone, OPPI, Amine) were included. Four kinds of experimental composite resin were made by mixing 3.2% silanated barium glass (78 wt.%, average size; 1 ㎛) with each monomer system including variously proportioned photoinitiator systems used for photoinitiating BisGMA/BisEMA/TEGDMA monomer blend (37.5:37.5:25 wt.%). The weight percentage of each component were as follows (in sequence Camphoroquinone, OPPI, Amine): Group A - 0.5%, 0%, 1% / Group B - 2%, 0.2%, 2% / Group C - 0.2%, 1%, 0.2% / Group D - 1%, 1%, 2%. Each composite resin was used as a filling material for round class V cavities (diameter: 2/3 of mesiodistal width; depth: 1.5 mm) made on extracted human premolars and they were polymerized using curing light unit (XL 2500, 3M ESPE) for 40 s with an intensity of 600 mW/㎠. Teeth were thermocycled five-hundred times between 50℃ and 550℃ for 30s at each temperature. Electrical conductivity (㎂) was recorded two times (just after thermocycling and after three-month storage in saline solution) by electrochemical method. Microleakage scores of each group according to evaluation time were as follows [Group: at first record / at second record; unit (㎂)]: A: 3.80 (0.69) / 13.22 (4.48), B: 3.42 (1.33) / 18.84 (5.53), C: 4.18 (2.55) / 28.08 (7.75), D: 4.12 (1.86) / 7.41 (3.41). Just after thermocycling, there was no difference in microleakage between groups, however, group C showed the largest score after three-month storage. Although there seems to be no difference in microleakage between groups just after thermocycling, composite resin with highly concentrated initiation system or classical design (Camphoroquinone and Amine system) would be more desirable for minimizing microleakage after three-month storage.