발달장애자녀의 부모들이 바라는 장애인 축구교실의 역할

유연중,이용호 서울대학교 스포츠과학연구소 2014 스포츠과학리뷰 Vol.8 No.2

The purpose of this research was to explore the role expectation of parents of people with developmental disability participating in soccer class for people with disabilities. Participants were 11 parents of children with developmental disability participating in soccer class for people with disabilities which was carried out at A university, and 6 parents of children with developmental disability participating in soccer class for people with disabilities which was carried out at B university. Focus group interview was used to collect qualitative data and categorical thematic content analysis was used to analysis data.The conclusions were as follows. First, Participants recognize soccer program for people with disability as healing time for parents of children with developmental disability. and it can be the time to help their children with developmental disability to school life adaptation. So they expect that soccer class for people with disability can be the class of socialization for their children with developmental disability. 본 연구의 목적은 발달장애자녀를 둔 학부모들이 장애인 축구교실에 대해 바라는 역 할을 탐색하는 데 있다. 연구 참여자는 A대학교 장애인 축구교실과 B대학교 장애인 축구교실이 소속된 발달장애아동의 학부모들 중 연구참여에 동의한 학부모들로 선정 하였다(A대학교 11명, B대학교 6명). 본 연구의 자료는 표적집단 심층면담(focus group interview)을 통하여 수집되었으며, 수집된 자료는 귀납적인 방법에 의하여 분석되었다. 본 연구의 참여자들은 장애인 축구교실에 대해 학부모들이 편하게 힐링할 수 있는 사 간, 장애자녀들의 학교생활적응에 도움이 되는 시간이라고 인식했으며, 장애인 축구교 실에 대해 이러한 부모들의 힐링시간, 장애자녀들의 사회화 기관으로서의 역할을 기대 하는 것으로 나타났다. 또한 향후 장애인 대상 스포츠 활동이 대중화되어 지금보다 쉽 게 접할 수 있게 되길 원하는 것으로 나타났다.

주가 예측을 위한 어텐션 메커니즘의 비교분석

유연국 ( Yeonguk Yu ),천용상 ( Yongsang Cheon ),조민희 ( Min-hee Cho ),김윤중 ( Yoon-joong Kim ) 한국정보처리학회 2019 한국정보처리학회 학술대회논문집 Vol.26 No.2

주가 예측은 상업적인 매력 때문에 많은 이목이 끌리는 분야이지만, 주가의 불확실성과 변동성 때문에 주가 예측은 어려운 작업이다. 최근에는 주가 예측 모델에 어텐션 메커니즘을 사용하여 주가 예측에 많은 인자들이 사용되어 생기는 성능 하락 문제를 해결하여 좋은 성능을 보여주는 연구가 존재한다. 본 연구에서는 그 모델 중 하나인 Dual-Stage Attention-Based Recurrent Neural Network (DARNN)의 어텐션 메커니즘을 변경해가며 어떤 어텐션 메커니즘이 주가 예측에 적합한지를 알아본다. KOSPI100 지수의 예측실험을 통해 location 스코어함수를 사용한 어텐션 메커니즘이 가장 뛰어난 성능을 보여주는 것을 확인하였고, 이는 기존의 스코어함수를 사용한 DARNN에 비해 약 10% 향상된 성능으로 스코어 함수가 모델의 중요한 영향을 끼치는 것을 확인하였다.

화자의 수가 주어진 오디오의 화자별 발화구간 추출을 위한 Baum-Welch, Viterbi 알고리즘기반의 비지도 학습방법

유연국(Yu Yeonguk),김윤중(Kim Yoonjoong) 한국통신학회 2017 한국통신학회 학술대회논문집 Vol.2017 No.11

초음파를 이용한 하대정맥/대동맥 지표와 중심정맥압의 상관관계

양중일,한규홍,조성욱,이승한,유연호,이진웅,김승환,유인술,유승 대한응급의학회 2010 大韓應急醫學會誌 Vol.21 No.3

Purpose: Body fluid status of patients in an emergency room environment is a very important parameter during clinical evaluation. In this study, we wanted to know the relationship between the diameter of the inferior vena cava and the diameter of the (IVC/Ao index) and central venous pressure (CVP) in hemodynamically unstable patients. Methods: This study was done prospectively in an emergency medical center of a hospital from January to August,2009. We compared the diameter of the IVC, the diameter of inferior vena cava/the body surface area index (IVC/BSA index), the IVC/Ao index, and other variables. Before and after hydration of patients with a systolic blood pressure less than 90 mmHg and who had a central venous catheter in place. Then, we calculated the correlation coefficient for ΔCVP, ΔIVC/Ao index, and other indexes. Results: Fifty-nine patients were enrolled in the study. The mean IVC diameter before hydration was 14.3±2.7 mm; it was 15.6±2.7 mm after hydration (p<0.01). The IVC/BSA index before hydration was 8.75±1.72 and 9.55±1.79after hydration (p<0.01). The IVC/Ao index before hydration was 1.08±0.23; it was 1.16±0.25 after hydration (p<0.01). The correlation coefficient for ΔCVP and ΔIVC was 0.37(p<0.01); for ΔCVP vs. the ΔIVC/BSA index it was 0.37(p<0.01); for the ΔIVC/Ao index it was 0.27 (p=0.04). Conclusion: CVP has a higher correlation to IVC diameter and to IVC/BSA index than to the IVC/Ao index. Hence, we should estimate the IVC/Ao index and use that estimate along with other indexes to evaluate body fluid status when dealing with hemodynamically unstable patients.

A Comparison between Clinical Results of Selective Bundle and Double Bundle Anterior Cruciate Ligament Reconstruction

서영진,유연식,송시영,양철중,하종문,김윤상 연세대학교의과대학 2016 Yonsei medical journal Vol.57 No.5

Purpose: The purpose of this study was to compare the clinical outcomes of arthroscopic anatomical double bundle (DB) anteriorcruciate ligament (ACL) reconstruction with either selective anteromedial (AM) or posterolateral (PL) bundle reconstruction while preserving a relatively healthy ACL bundle. Materials and Methods: The authors evaluated 98 patients with a mean follow-up of 30.8±4.0 months who had undergone DB or selective bundle ACL reconstructions. Of these, 34 cases underwent DB ACL reconstruction (group A), 34 underwent selective AM bundle reconstruction (group B), and 30 underwent selective PL bundle reconstructions (group C). These groups were comparedwith respect to Lysholm and International Knee Documentation Committee (IKDC) score, side-to-side differences of anterior laxity measured by KT-2000 arthrometer at 30 lbs, and stress radiography and Lachman and pivot shift test results. Pre- and post-operative data were objectively evaluated using a statistical approach. Results: The preoperative anterior instability measured by manual stress radiography at 90° of knee flexion in group A was significantlygreater than that in groups B and C (all p<0.001). At last follow-up, mean side-to-side instrumented laxities measured by the KT-2000 and manual stress radiography were significantly improved from preoperative data in all groups (all p<0.001). There were no significant differences between the three groups in anterior instability measured by KT-2000 arthrometer, pivot shift, or functional scores. Conclusion: Selective bundle reconstruction in partial ACL tears offers comparable clinical results to DB reconstruction in completeACL tears.

2개 대학병원 응급센터에 내원한 급성 불화수소산 노출 환자에 대한 임상적 경험

한규홍,양중일,조성욱,조용철,유승,이진웅,김승환,유인술,유연호,박정수,Han, Kyu-Hong,Yang, Jung-Il,Jo, Seung-Yook,Cho, Yong-Chul,Ryu, Seung,Lee, Jin-Woong,Kim, Seung-Whan,Yoo, In-Sool,You, Yeon-Ho,Park, Jung-Soo 대한임상독성학회 2009 대한임상독성학회지 Vol.7 No.2

Purpose: We investigated the clinical characteristics and demographics of patients who suffered from hydrofluoric acid chemical injury and the mechanism of damage. Methods: We retrospectively reviewed the medical records of patients who were exposed to hydrofluoric acid from March 2004 to March 2009 and who were seen at the emergency centers in two university teaching hospitals. Results: Forty four patients out of 47 patients suffered from chemical burn, while the injuries of the remaining 3 could not be identified by the medical records. A total of 17 hydrofluoric acid chemical injury patients were enrolled during the study period, and their mean age was $29.6{\pm}7.0$. All the patients were accidentally injured by contact with the material and none of them inhaled or ingested the material. Only 6 patients wore appropriate protective equipments and 5 underwent the water irrigation for more than 10 minutes. The most common exposure area was the hand and forearm (70.5%). Less than 1% of all of the patients had their total body surface (TBS) exposed to hydrofluoric acid (mean=0.35%). The mean time interval from calcium gluconate administration to pain relief was $33.6{\pm}8.8$ hours. Conclusion: When exposed to hydrofluoric acid, it is important to wear protective equipment and undergo water irrigation for more than 10 minutes. Pain and skin damage were observed in all the patients. After treatment, we concluded that administration of calcium gluconate and pain killers was successful in relieving pain, and the prognosis was also positive for the admitted and followed up patients when less than 1% of the TBS was exposed.

응급센터에 내원한 정신분열증 환자에서 급성 충수돌기염의 임상적 고찰

한규홍,양중일,조성욱,유연호,이병국,이장영,정원준,박정수,이원석,유인술 대한응급의학회 2010 大韓應急醫學會誌 Vol.21 No.5

Purpose: To investigate the clinical characteristics and Alvarado scores of schizophrenia with patients acute appendicitis presenting at the emergency department. Methods: We retrospectively reviewed medical records and identified schizophrenia patients who were diagnosed with acute appendicitis between January 2000 to December 2009 and who presented at the emergency department in 6 University hospitals. Comparisons were made with non-schizophrenic patients with acute appendicitis. Data collected included the patient's age, sex, clinical features, time interval between onset of symptoms and visiting the hospital, Alvarado score, disease complications,and diagnostic imaging modality. Results: We identified 27 schizophrenia patients with acute appendicitis. Mean age was 34.5±8.3; 51.9% were women. The median time from onset of symptoms to visiting the emergency department was 3.8±1.4 days in the schizophrenic group and 2.3±2.1 in the normal control group. The mean Alvarado scores were 5.4±1.5 for the schizophrenic group and 6.5±2.1 for controls. Perforation of the appendix and formation of abscesses was higher in schizophrenic patients with appendicitis. Conclusion: These findings suggest that acute appendicitis is diagnosed late and with difficulty in schizophrenic patients and these patients may be the most vulnerable to failure to obtain timely surgical care. Early and careful access is recommended in suspected cases of appendicitis in schizophrenia patients.

The Obturator Hernia: A Challenge for Early Diagnosis with Computed Tomography in Emergency Situations

한규홍,양중일,조용철,유연호,정진웅,유인술,유승,이진웅,김승환 대한응급의학회 2010 大韓應急醫學會誌 Vol.21 No.4

Obturator hernias usually occur in elderly persons. We sometimes miss the correct diagnosis because of vague symptoms and signs in older patients at initial presentation. For good clinical outcomes, we should make the correct diagnosis earlier, especially in aged patients. Here we report cases of obturator hernia in two aged patients without specific medical or surgical histories. Two older women suffered obturator hernias, which were characterized by clinical and radiographic features. They did not have any specific surgical and medical histories. For further evaluation of abdominal symptoms and signs, we did an abdominopelvic computed tomography (CT) scan in the emergency department. The CT scan revealed findings compatible with an obturator hernia in the area of the obturator foramen. They were treated and discharged without complications. When obturator hernia is suspected in a patient with related symptoms and signs, early CT scans should be considered to detect obturator hernia.

전통적 수동식 소생기와 새로 고안한 수동식 소생기를 이용한 일회 환기량의 비교

조성욱,한규홍,양중일,조용철,유승,김승환,유연호,유인술,이진웅 대한응급의학회 2010 大韓應急醫學會誌 Vol.21 No.6

Purpose: A manual resuscitator is often used during cardiopulmonary resuscitation. Artificial ventilation during cardiopulmonary resuscitation is important to the victim's survival. But, manual resuscitators can not achieve delivery of optimal tidal volumes during cardiopulmonary resuscitation. Hence, we suggest a newly designed manual resuscitator that achieves optimal tidal volumes. Methods: This study was done on sixty one participants using a conventional manual resuscitator and a newly designed resuscitator. Each participant squeezed the resuscitators ten times. We measured tidal volumes and participant variables including age, sex, type of emergency medical practitioner, hand height, hand grip strength, and hand volume. Results: For the 61 patients, mean tidal volume with the conventional resuscitator was 501.67±143.95 ml and with the newly designed resuscitator it was 527.14±23.77 ml (p=0.156). Accuracy of the conventional resuscitator was 19.7%; for the newly designed resuscitator it was 91.8%. Tidal volume did not correlate with age, sex, type of emergency medical practitioner, hand height, hand grip strength,or hand volume. Conclusion: Our newly designed resuscitator was better able to ventilate optimal tidal volumes than a conventional resuscitator. Further study with the newly designed resuscitator should be done in the clinical setting.