합성 얼굴사진을 이용한 조현병 환자의 자기-타인 경계 인식의 특성

오승택,홍연주,신유빈,윤형준,선자연,김대현,김재민,김재진 대한조현병학회 2015 대한조현병학회지 Vol.18 No.1

Objectives : Disturbance in self-experience has been considered to be a core feature of schizophrenia. Evidence from mirror face-recognition tasks supports the connection between self-face recognition and self-awareness which is a part of self-experience. The aim of this study was to investigate the self-other boundary recognition using morphed face pictures in patients with schizophrenia. Methods : Twenty-one patients with schizophrenia and twenty-three healthy controls completed the self-face recognition task that consisted of various morphed pictures. Participant’s own picture was morphed with each of three different, unknown, gender-matched facial identities in steps of 10% ; each pair producing 11 images with graded blending of facial features. Thirty-three images in total were randomly presented as stimuli in a run, which was repeated three times. Participants were instructed to choose whether the stimulus was self-face or not. Results : Self-face proportion was significantly lower in the schizophrenia group at both recognition start point I and II (33.33% vs. 53.04%, p<0.001 ; 61.43% vs. 70.87%, p=0.01, respectively). Using the mean value of each recognition start point in the control group, we calculated the difference in self-face proportion for each individual with schizophrenia. There was a significant correlation between the degree of this difference and total Scale for the Assessment of Negative Symptoms (SANS) score at recognition start point I (r=0.507, p=0.019). Conclusion : The difference in self-other boundary recognition in this study may account for self-disturbance of schizophrenia. Its correlation with SANS total score may reflect the shared nature of persistent disturbance between the disturbance in self-experience and the negative symptom.

Hollow silica spheres for photonic colloies

오승택,김영석,윤범진 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.0

Advanced Organic Transistor-based Sensor utilizing Solvatochromic Medium with Twisted Intramolecular Charge-Transfer Behavior and Its Application to Ammonia Gas Detection

오승택,이화성 한국고분자학회 2022 한국고분자학회 학술대회 연구논문 초록집 Vol.47 No.1

Flexible, Disposable, and Selective Sensors Using ZnO Nanocomposite Barrier for Acid Leakage Detection

오승택,이화성 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.1

This paper reports on disposable leakage sensors for the acidic solution based on the composite of ZnO nanoparticle (ZnO NP) and polyurethane (PU). ZnO NP is etched only in acidic solutions and is useful for detecting acidic solutions. Using this phenomenon, the ZnO/PU nanocomposites were coated on carbon-based resistance-type sensors as a barrier. For sensitive detection of acidic solutions from sensors, oxidized multi-walled carbon nanotubes (Ox-MWNTs) were adopted as active layers, and the active layer of the sensor was selectively patterned by drop-casting Ox-MWNTs solution on ultraviolet ozone-treated substrates. Barrier films were also optimized by changing the coating conditions of the ZnO/PU nanocomposites for fast response speed and accurate detection of the sensor, and as a result, the disposable leakage sensor using the barrier film of the ZnO/PU nanocomposite for the acid solution showed good selectivity and reproducibility.

유방 보존술식을 시행한 유방암 환자의 임상적 고찰

오승택,정상설,윤세철,정극규,김인철 가톨릭 중앙의료원 가톨릭 암센터 1993 가톨릭 암센터 論集 Vol.7 No.1

혈관 내 치료로 개선된 다발경막동정맥루로 인한 급격한 신경학적 악화

오승택,유혜리,송관주,배재한,송윤선,권혁성,김범준 대한신경과학회 2022 대한신경과학회지 Vol.40 No.4

마이크로버블 오존 산화제와 공압파쇄 장치를 연계 적용한 지중 화학적 산화법의 정화효율 평가

오승택,오참뜻,김국진,석소희,김철경,임진환,유재봉,장윤영,Oh, Seung-Taek,Oh, Cham-Teut,Kim, Guk-Jin,Seok, So-Hee,Kim, Chul-Kyung,Lim, Jin-Hwan,Ryu, Jae-Bong,Chang, Yoon-Young 한국지하수토양환경학회 2012 지하수토양환경 Vol.17 No.4

A new type of chemical oxidation technology utilizing micro bubble ozone oxidizer and a pneumatic fracturing equipment was developed to enhance field applicability of a traditional chemical oxidation technology using hydrogen peroxide as an oxidizer for in-situ soil remediation. To find an efficient way to dissolve gaseous ozone into hydrogen peroxide, ozone was injected into water as micro bubble form then dissolved ozone concentration and its duration time were measured compared to those of simple aeration of gaseous ozone. As a result, dissolved ozone concentration in water increased by 31% (1.6 ppm ${\rightarrow}$ 2.1 ppm) and elapsed time for which maximum ozone concentration decreased by half lengthened from 9 min to 33 min. When the developed pneumatic fracturing technology was applied in sandy loam, cracks were developed and grown in soil for 5~30 seconds so that the radius of influence got longer by 71% from 392 cm to 671 cm. The remediation system using the micro bubble ozone oxidizer and the pneumatic fracturing equipment for field application was made and demonstrated its remediation efficiency at petroleum contaminated site. The system showed enhanced remediation capacity than the traditional chemical oxidation technology using hydrogen peroxide with reduced remediation time by about 33%.

언어 발달지연 환아에서 진단적 검사의 유용성

오승택,이은실,문한구 대한소아청소년과학회 2009 Clinical and Experimental Pediatrics (CEP) Vol.52 No.3

목 적 : 언어 발달 지연아들에게 흔히 시행되는 검사들로서 뇌 자기공명 영상, 염색체 핵형분석, 뇌 전위 유발검사, 뇌파, Tandem mass 선별검사 및 6종 선천성 대사질환 선별검사가 원인 질환의 진단에 유용한 지를 알아보고자 본 연구를 시행하였다. 방 법 : 2000년 1월부터 2007년 6월까지 언어 발달 지연을 주소로 영남대학교 부속병원 소아신경클리닉에서 신경심리검사와 원인 질환에 대한 검사를 받았던 122명의 환아를 대상으로 의무 기록을 검토하여 증례별로 현상학적 질환의 범주로 나누고 원인/연관 추정 소견 여부를 확인한 후 검사의 양성률과 원인 질환의 진단에서의 유용성을 분석하는 후향적 연구를 시행하였다. 결 과 : 대상 환아 122예에서 정신지체 47예(38.5%), 발달성 언어장애 40예(32.8%), 경계선 지능이 23예(18.9%) 그리고 자폐 범주 질환이 12예(9.8%)였다. 원인/연관 추정 소견은 26예(21.3 %)에서 찾을 수 있었으며 이형 증후군이 5예, 소두증이 4예, 미숙아 분만 및 신생아 가사의 병력을 가진 경우가 3예, 저출생 체중아가 3예, 양육된 환경적인 요인이 문제였던 경우가 3예 등의 순으로 많았다. 검사 소견으로 자기공명 영상 77예 중 8예(10.4 %), 뇌파 75예 중 6예(8.0%)에서 이상 소견이 관찰되었고 뇌 전위 유발검사 80예 중 양측 이상을 보인 경우가 4예(5%)있었으나 2예에서는 추적 관찰시 정상화되었다. 염색체 핵형분석 80예, Tandem mass 선별검사 67예와 대사질환에 대한 신생아 선별검사 15예에서 이상 소견이 관찰된 경우는 없었다. 검사 소견 중 뇌 자기공명 영상은 대뇌 겉질 형성 이상 1예의 확진과 뇌량 형성 부전 3예와 뇌연화증 1예의 원인 질환 추정에, 그리고 뇌 전위 유발검사는 청각 장애 2예의 확진에 도움이 되었다. 결 론 : 언어 발달 지연의 원인 질환의 진단 시 흔히 시행되는 검사들은 유용성이 크지 않으며 검사의 시행은 증례의 특징에 따라 선별적으로 시행하는 것이 바람직하다. 그러나 원인 질환의 진단에는 도움이 되지 않는다고 하더라도 검사에서 이상 소견이 관찰되는 경우가 적지 않으므로 언어 발달 지연의 전체적인 평가에는 이들 검사의 의미에 대해서는 좀 더 연구가 필요하다. Purpose : To assess the usefulness of magnetic resonance imaging (MRI), karyotyping, brainstem auditory evoked potential (BAEP), electroencephalogram (EEG), tandem mass screening test, and newborn metabolic screening test in children with language delay for diagnosing underlying diseases. Methods : From January 2000 to June 2007, a retrospective chart review was performed for 122 children with language delay who visited the Child Neurology Clinic at Yeungnam University Hospital and who underwent neuropsychologic tests and other diagnostic evaluations for underlying diseases. They were grouped into phenomenological diagnostic categories, and test results were analyzed according to the underlying diseases. Results : Of 122 patients, 47 (38.5%) had mental retardation, 40 (32.8%) had developmental language disorders, 23 (18.9 %) had borderline IQ, and 12 (9.8%) had autism spectrum disorder. In 26 (21.3%) cases, the causes or relevant clinical findings to explain language delay were found. Eight (10.4%) of 77 MRIs, 6 (8.0%) of 75 EEGs, and 4 (5%) of 80 BAEPs showed abnormal results. Results directly attributed to diagnosing underlying diseases were 2 hearing defects in BAEPs and 1 bilateral perisylvian cortical dysplasia in MRIs. No abnormal results were found in karyotyping, tandem mass screening tests, and newborn screening tests. Conclusion : Commonly used tests to diagnose the cause of language delay are not very effective and should only be used selectively, according to patient characteristics. However, despite the low diagnostic yields from these tests, because many patients show abnormal results, these tests are useful when conducted in complete evaluation.

진행성 대장암 항암화학치료의 현황

오승택 대한임상종양학회 2004 대한임상종양연구 심포지엄 Vol.1 No.-

소아에서 발병한 간농양 1예

오승택,최광해 영남대학교 의과대학 2008 Journal of Yeungnam Medical Science Vol.25 No.1

Liver abscess in children is rare in developed countries; the incidence is 25 per 100,000 admissions in USA. Common complications are pleural effusion, empyema, pneumonitis, hepatopleural or hepatobronchial fistula, intraperitoneal or intrapericardiac rupture, septic shock, cerebral amebiasis, etc. These complications may lead to death if the management is delayed. However, recent management results in a mortality of less than 15%. We report a case of liver abscess in a child. He manifested with fever and abdominal pain in the right upper quadrant. On computerized tomography scans, multiple cystic lesions were seen in both lobes of the liver and were 5 to 55 mm in size. In laboratory findings, neutrophilic leukocytosis, peripheral eosinophila, elevated values of ESR, C-reactive protein, and elevated serum AST, AL T, ALP and GGT were detected. Furthermore, we determined the organisms in the blood culture and serum. Blood culture was positive for Streptococcus spp., and amebic indirect hemagglutination antibody titer was increased to 1:512.