미용콘택트렌즈 관련 합병증 환자의 임상양상 및 치료 순응도 실태

최헌진,염정훈,이종현,이도형,김진형,Hun Jin Choi,MD,Jung Hoon Yum,MD,Jong Hyun Lee,MD,PhD,Do Hyung Lee,MD,PhD,Jin Hyoung Kim,MD,PhD 대한안과학회 2014 대한안과학회지 Vol.55 No.10

Purpose: To investigate the clinical features and compliance of cosmetic contact lens (CL)-related complications compared with soft CL-related complications. Methods: We performed a retrospective chart review of 97 patients (194 eyes) regarded as having CL-related complications at the outpatient clinic. The portion of complications, gender, age, and chief complaints at the initial visit were analyzed, as was compliance to cosmetic and soft CL-related guidelines for use. Results: A total of 97 patients (49 patients with cosmetic CL-related complications and 43 patients with soft CL-related complications) were evaluated. The mean age of the subjects using cosmetic CL was 19.8 years (14-31 years), and all the patients were female. The chief complaints at the initial visit included ocular pain, injection, blurred vision, dryness, itching and foreign body sensation. The main complications included corneal erosion, sterile corneal infiltrate, allergic disease, neovascularization, corneal ulcer and dry eye syndrome. No statistical difference was found regarding chief complaints or complications. The proportion of patients lost to follow-up was 47% in cosmetic CL-related and 20% in soft CL-related complications, a significant difference (<EM>p </EM>= 0.015). Conclusions: Because young females are the most common CL patients and do not always fully comply with the guidelines for use, ophthalmologists need to warn these patients about the risk of serious complications.J Korean Ophthalmol Soc 2014;55(10):1445-1451

DILUTED MAGNETIC SEMICONDUCTOR NANOWIRES

최헌진,HAN-KYU SEONG,UNGKIL KIM 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2008 NANO Vol.3 No.1

An idea for simultaneously manipulating spin and charge in a single semiconductor medium has resulted in the development of diluted magnetic semiconductors (DMSs), which exhibits surprisingly room temperature ferromagnetic signatures despite having controversial ferromagnetic origin. However, achievement of truly room temperature ferromagnetism by carrier mediation is still the subject of intense research to develop the practical spin-based devices. Nanowires with one-dimensional nanostructure, which offers thermodynamically stable features and typically single crystalline and defect free, have a number of advantages over thin films with respect to studying ferromagnetism in DMSs. This review focuses primarily on our works on GaN-based DMS nanowires, i.e., Mn-doped GaN, Mn-doped AlGaN and Cu-doped GaN nanowires. These DMS nanowires have room temperature ferromagnetism by the local magnetic moment of doping elements that are in a divalent state and in tetrahedralcoordination, thus substituting Ga in the wurtzite-type network structure of host materials. Importantly, our evidences indicate that the magnetism is originated from the ferromagnetic interaction driven by the carrier. These outcomes suggest that nanowires are ideal building blocks to address the magnetism in DMS due to their thermodynamic stability, single crystallinity, free of defects and free standing nature from substrate. Nanowires themselves are ideal building blocks for nanodevices and, thus, it would also be helpful in developing DMS-based spin devices.

나노와이어를 이용한 바이오 소자 응용기술

최헌진,박정민,Choi, Heon Jin,Park, Jung Min 한국진공학회 2016 진공 이야기 Vol.3 No.3

Nanowires have excellent properties such as high crystallinity, good mechanical properties, quantum confinement effect and high chemical activity, and thus are promising building blocks for many applications. Here we firstly review the fabrication of nanowires by top-down and bottom-up process. We then review nanowires as building blocks for bio applications including bio sensing, cell signaling and cell stimulating. It shows that nanowires are promising for the development of advanced bio technologies that can address ultrahigh sensitivity, and long term cell signaling and stimulating without cell damages.

생명굿 사례연구: 생명력 3단계 현상분석을 중심으로

최헌진 한국상담학회 2016 상담학연구 사례 및 실제 Vol.1 No.1

Life and the life-force are invisible. We can only measure and imagine the life-force through phenomenological concepts such as native force(i.e., autogenesis), encounter force(relationship), and symbiotic force. This study presents three case studies of Saengmyeong-gut (a ritual for life) focusing on the therapeutic effect of three life-forces. Summaries of each session are given, followed by the process of change of each Al-nym(client) through the change of three concepts of the life-force. Finally, the meanings of this article and the concepts of three life-forces, and the direction of further research is discussed. 본 연구는 「생명굿」의 세 명의 알님(내담자)에 대한 사례 연구다. 생명력의 현상 개념으로서 자생력, 상생력, 공생력을 토대로 알님지기(상담자)가 알님을 어떻게 이끌고 판을 만들며, 그러한 진행이 어떻게 알님의 생명력에 치유적 변화를 일으키는지를 분석하였다. 그리고 본 논문과 3대 생명력 개념의 의의 및 추후연구 방향을 논의하였다.

Influence of Diameter on the Photoresponse in a Networked Zinc-Oxide Nanowire Photodetector

최헌진,Ryong Ha,변재철,Hwangyou Oh,최영진,박재관 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.53 No.4

We report on the photoresponses of networked ZnO nanowire photodetectors fabricated by using a simple, mass-scalable process. ZnO nanowires were synthesized by using a carbothermal reduction process and the diameter of the nanowires was controlled by using the thickness of the gold catalyst. The photoresponse was measured by using photodectors fabricated with nanowires of 80 nm and 300 nm in diameter. The photoresponse showed no dependence on the diameter of the nanowires in the wavelength range of 200 ∽ 370 nm, which is attributed to the eects of photo-generation and photolysis on the surface nanowires, while it showed a dependence on the diameter in the wavelength range of 370 ∽ 650 nm.

정신분열증의 예후 예측 변인에 관한 임상적 관찰

최헌진 大韓神經精神醫學會 1982 신경정신의학 Vol.21 No.3

With the review of literatures on prognostic variables in schizophrenia, this study was designed to observe the predictable variable variables of prognosis and outcome including general, as well as premorbid functional and family factors in terms of the improvement at discharge. The subjects were consisted of 81 schizophrenics who had been hospitalized at least for more than 20 days in the department of neuropsychiatry, Soon Chum Hyang Med. college hospital from March, 1st, 1979 to Dec. 31th, 1981. Among 24 prognostic variables studied, 10 items were found to be valuable in predicting outcome upon discharge. 1) Better the premorbid adaptability, higher the degree of improvement at discharge. 2) Good premorbid personalities were significantly correlated with the higher improvement rate. 3) The group of acute onset(under 6 months). was associated with the highest rate of improvement, where as the group of chronic course of illness(above 10 years) was with the poorest. 4) The presence of past history of psychiatric hospitalization was highly correlated with the lower rate of improvement(33.6%). 5) Improvement rate was significantly higher in the group with the identified precipitating factors(85%) than the group without ones(16.2%). 6) There was highly significant correlation found between the group with and without physical and functional defects or disabilities in the rate of improvement(10% : 49.3% rerpectively). 7) Between the group with and without family history of schizophrenia, there was also significant correlation in the improvement rate.(20%:50% respectively). 8) The rate of improvement was higher in the group with disturbance of consiousness(85.6%) around the time of admission than the group with clear one(40.5%). 9) As for the state of affect, the group with anxiety and elated mood were associated with the higher improvement rated(66.7% and 78.5), while the group with emotional blunting was associated with the poorer improvement rate(12.4%). There was no unimproved case in the depressive group. 10) In terms of clinical type, the catatonic, paranoid, affective and atypical groups were associated with the higher improvement rates above 60%, while the habephrenic and simple groups were associated with the lower rates of improvement. To summarize, a 10-point prognostic score was constructed by using the ten variables enumerated above as a prognostic variables. The group with the total score of 4 or less could be predicted as a favorable prognostic group and a score of 5 or 6 as a undetermined group, while the group with the score of 7 or more could be predicted as a definitely poor progonstic group. With the review of literatures on prognostic variables in schizophrenia, this study was designed to observe the predictable variable variables of prognosis and outcome including general, as well as premorbid functional and family factors in terms of the improvement at discharge. The subjects were consisted of 81 schizophrenics who had been hospitalized at least for more than 20 days in the department of neuropsychiatry, Soon Chum Hyang Med. college hospital from March, 1st, 1979 to Dec. 31th, 1981. Among 24 prognostic variables studied, 10 items were found to be valuable in predicting outcome upon discharge. 1) Better the premorbid adaptability, higher the degree of improvement at discharge. 2) Good premorbid personalities were significantly correlated with the higher improvement rate. 3) The group of acute onset(under 6 months) was associated with the highest rate of improvement, whereas the group of chronic course of illness(above 10 years) was with the poorest. 4) The presence of past history of psychiatric hospitalization was highly correlated with the lower rate of improvement(33.6%). 5) Improvement rate was significantly higher in the group with the identified precipitating factors(85%) than the group without ones(16.2%). 6) There was highly significant correlation found between the group with and without physical and functional defects or disabilities in the rate of improvement(10% : 49.3% rerpectively). 7) Between the group with and without family history of schizophrenia, there was also significant correlation in the improvement rate.(20%:50% respectively). 8) The rate of improvement was higher in the group with disturbance of consiousness(85.6%) around the time of admission than the group with clear one(40.5%). 9) As for the state of affect, the group with anxiety and elated mood were associated with the higher improvement rated(66.7% and 78.5), while the group with emotional blunting was associated with the poorer improvement rate(12.4%). There was no unimproved case in the depressive group. 10) In terms of clinical type, the catatonic, paranoid, affective and atypical groups were associated with the higher improvement rates above 60%, while the habephrenic and simple groups were associated with the lower rates of improvement. To summarize, a 10-point prognostic score was constructed by using the ten variables enumerated above as a prognostic variables. The group with the total score of 4 or less could be predicted as a favorable prognostic group and a score of 5 or 6 as a undetermined group, while the group with the score of 7 or more could be predicted as a definitely poor progonstic group.

가스압 소결한 질화규소에서 입자성장이 강도와 파괴인성에 주는 영향

최헌진,이준근,김영옥 한국세라믹학회 1996 한국세라믹학회지 Vol.33 No.11

탄화규소 휘스커의 합성(I) : 반응기구의 율속반응

최헌진,이준근 한국세라믹학회 1998 한국세라믹학회지 Vol.35 No.12

A twt -step carbothermal reduction scheme has been employed for the synthesis of SiC whiskers in an Ar or a H2 atmosphere via vapor-solid two-stage and vapor-liquid-solid growth mechanism respectively. It has been shown that the whisker growth proceed through the following reaction mechanism in an Ar at-mosphere : SiO2(S)+C(s)-SiO(v)+CO(v) SiO(v)3CO(v)=SiC(s)whisker+2CO2(v) 2C(s)+2CO2(v)=4CO(v) the third reaction appears to be the rate-controlling reaction since the overall reaction rates are dominated by the carbon which is participated in this reaction. The whisker growth proceeded through the following reaction mechaism in a H2 atmosphere : SiO2(s)+C(s)=SiO(v)+CO(v) 2C(s)+4H2(v)=2CH4(v) SiO(v)+2CH4(v)=SiC(s)whisker+CO(v)+4H2(v) The first reaction appears to be the rate-controlling reaction since the overall reaction rates are enhanced byincreasing the SiO vapor generation rate.

주제 : 심리적 재활을 위한 예술치료기법의 이론과 실제 / 발표 3 : 심리적 재활에 있어서 심리극의 이론 및 적용효과

최헌진 한국재활심리학회 1997 한국재활심리학회 연차학술발표대회 자료집 Vol.- No.3

비강내 코중격 트리암시놀론 주사 후 발생한 눈동맥분지의 다발성 폐쇄 1예

최헌진,한동진,신주연,이도형,김진형,서지원,이종현 대한안과학회 2021 대한안과학회지 Vol.62 No.1

Purpose: We report a case of visual loss caused by occlusion of multiple branches of the ophthalmic artery after triamcinolone injection into the nasal septum. Case summary: A 62-year-old male was referred to our ophthalmology clinic because of marked loss of vision in the right eye immediately after triamcinolone injection into the nasal septum. His corrected visual acuity was hand motion in the right eye and the intraocular pressure was 20 mmHg. His pupil was mid-dilated, fixed, and did not respond to light. Fundus examination revealed multiple, white steroidal emboli in the terminal retinal artery and capillaries. Fundus photography revealed macular edema, ischemic retinal whitening, and a cherry-red spot in the posterior pole of the retina. Optical coherence tomography (OCT) revealed inner-layer whitening and swelling and OCT-angiography revealed reduced numbers of terminal capillaries and a low vascular density. Anterior chamber paracentesis and ocular massage were immediately performed. Wide fluorescein angiography revealed diffuse choroidal hypofluorescence in the early phase and fluorescein leakage around the posterior pole in the late phase. Visual acuity improved to 1.0, but retinal whitening was still evident below the macula on fundus examination 3 months after symptom onset. Conclusions: Multiple branches of the ophthalmic artery may become occluded after an intranasal, septal triamcinolone injection. The condition improves with immediate management. 목적: 코중격 트리암시놀론 주사 후 시력저하를 호소하는 눈동맥분지의 다발성 폐쇄 1예를 경험하여 이를 보고하고자 한다. 증례요약: 62세 남자 환자가 코중격 트리암시놀론주입술을 시행 후 갑작스러운 시력저하를 주소로 안과에 의뢰되었다. 교정시력은 우안 안전 수동, 안압은 우안 20 mmHg으로 측정되었다. 우안 동공은 중등도로 확장되고 빛 반사 소실 소견이 관찰되었다. 안저검사에서 트리암시놀론 침착물이 말단 동맥과 모세혈관에서 관찰되었다. 안저 사진에서도 황반부부종 소견, 후극부에 창백 소견 및 앵두반점이 관찰되었다. 빛간섭단층촬영에서 망막 내측 반사 증대 소견과 망막부종을 확인할 수 있었으며, 혈관빛간섭단층촬영에서 말단 혈관 감소 및 혈관 밀도의 감소 소견을 보였다. 검사 직후 전방 천자 및 안구마사지를 시행하였다. 형광안저촬영에서 초기 맥락막저형광 소견과 후극부를 중심으로 후기 형광 누출 소견이 관찰되었다. 증상 발생 후 3달째 시력은 1.0으로 회복하였으나 안저검사에서 여전히 황반부 아래쪽의 창백 소견이 관찰되었다. 결론: 코중격 트리암실놀론주입술 시행 후 눈동맥분지의 폐쇄가 발생할 수 있으며, 즉각적인 조치로 호전될 수 있음을 알 수 있었다.