• Journal of Trauma and Injury
• /
• 제32권1호
• /
• pp.32-39
• /
• 2019

Purpose: The aim of this study was to determine which factors contribute to the surgical treatment outcomes of acetabular fractures. Simultaneously, we aim to report on the treatment results after our hospital was designated as the focused training center for trauma. Methods: We conducted a retrospective review of all patients who experienced acetabular fractures from January 1, 2014 to May 1, 2017 and visited our hospital. Patients who had associated pelvic ring fractures or were lost to the one-year follow-up were excluded; a total of 37 fractures were evaluated. We evaluated the clinical results using the scoring system of Merle $d^{\prime}Aubign\acute{e}$ (MDA) and grade of Brooker for heterotopic ossification. Results: Thirty-seven patients (31 men and 6 women) were identified. The mean injury severity score (ISS) was 8.7, with 32.4% of patients having a score >15. The average blood transfusion in the first 24 hours was 0.54 pints. Falling was the most common injury mechanism (32.4%). Chest injury was the most common associated injury (16.2%), followed by head injury (13.5%). The posterior wall and both column fracture were the most common (37.8%) fracture patterns. Excellent and good clinical grades of MDA included 28 patients (75.6%) and fair and poor grades included nine (24.3%), respectively. Four patients were diagnosed with a post-operative infection (10.8%); one out of four patients who had co-morbidity died (2.7%), and another patient underwent a replacement surgery (2.7%). Multivariate analysis showed that age and operation time were associated with MDA. In addition, operation time and ISS were significant co-factors of the Brooker grade. Conclusions: Korea University Guro Hospital showed similar treatment results of acetabular fractures compared to other publications. The age and operation time were co-factors of the clinical outcome of this fracture. Additionally, increased operation time and injury severity score were suggested to increase the Brooker grade.

• 한국산학기술학회논문지
• /
• 제20권7호
• /
• pp.102-110
• /
• 2019

본 연구는 건강보험공단의 기준에 의해 부분도움 또는 완전도움이 필요한 등급을 받은 정신적, 신체적 기능장애를 가진 노인을 대상으로, 고무의 탄성을 이용하여 관절과 근육이 무리를 덜 주는 저항성 운동프로그램들 개발하고, 이 운동이 노인의 보행능력, 균형능력 및 근력 향상에 미치는 효과를 분석한 연구이다. 경기, 충청권의 주간보호센터 세 곳을 대상으로 노인들 58명에게 12주간의 운동 프로그램을 진행한 후, 운동 참여 전과 후의 수치에 대해 종속 t-검증을 실시하였다. 그 결과 전체 참여자들이 보행능력, 균형능력, 근력에서 평균적인 향상을 보였다. 특히 모든 등급에서 검증된 균형능력의 유의한 향상(p<.01)은 균형능력이 일상생활 능력을 향상시키고 낙상 위험을 감소시킨다는 측면에서 노인 삶의 질 향상의 의미가 크다고 할 수 있다. 따라서 본 운동프로그램을 전체 노인으로 대상을 확대하고 활성화시킨다면, 건강한 노인이 치료가 필요한 취약계층으로 이동하는 것을 방지하고 허약노인이 장애노인으로 진행되는 것을 지연시킬 수 있어 개인적, 국가적 손실을 최소화할 수 있는 예방적 방법 중 하나가 될 것으로 기대된다.

• 한국지반환경공학회 논문집
• /
• 제20권12호
• /
• pp.57-64
• /
• 2019

우리나라의 국토는 약 70% 이상 산악지형으로 사업화와 도시화로 인한 도로의 확장과 연장으로 인해 사면을 변형시키는 규모가 매년 증가하고 있다. 이렇게 변형된 사면은 집중호우와 지진 등의 자연재해로 인해 낙석발생의 위험이 높아지고 있다. 국토교통부(2016) 도로안전시설 설치 및 관리지침 중 낙석방지시설 편에는 48~61kJ에 상응하는 와이어로프, 지주, 망의 규격 등이 제시가 되어있으나 낙석방지울타리의 흡수에너지와의 상관관계는 명확하게 제시되어 있지 않다. 따라서 본 연구에서는 해석적, 수치해석적 방법을 통해 낙석방지울타리에 작용하는 에너지를 계산하고 비교 분석하였다. 그 결과 낙석방지울타리 흡수에너지의 경우 지주의 형태가 H형강인 경우 1경간과 3경간일 때 수치해석의 경우가 2.3, 4.4kJ 정도 크게 계산되었다. 지주의 형태가 각형강관인 경우는 3경간인 경우 오히려 해석적 방법이 34.4kJ 정도 크게 계산되었다. 이는 수치해석에서는 중간지주 부분은 각형강관이 아닌 H형강을 사용하여 수행되었기 때문에 상대적으로 작은 흡수에너지를 보여주고 있다. 향후 각형강관으로 이루어진 3경간에 대해 추가적으로 수치해석을 수행 예정이며, 이들을 검징하기 위한 실물낙석시험을 실시할 예정이다.

• 한국건축시공학회지
• /
• 제20권6호
• /
• pp.537-543
• /
• 2020

유리창 청소작업은 인력의존적이고, 고소에서 불안정한 자세로 수행하여 추락위험이 상존하는 작업이다. 따라서 작업원의 안전도 향상 방안이 시급한 상황이다. 본 연구에서는 건축물 외부 유리창 청소에 대하여 개념설계를 제시하고, 제시된 개념모델에 대한 경제적 타당성을 분석하였다. 제시된 모델은 창틀 등 돌출부를 회피하며, 상하부의 형상이 상이하더라도 대응이 가능하도록 고안하였다. 고안된 개념모델의 경제성을 분석한 결과, 편익비용 비율이 4.48로 1을 크게 상회하였다. 따라서 제안된 유리창 청소장치의 경제적 타당성은 충분할 것으로 기대된다. 본 논문에서 분석한 결과는 유리창 청소장치의 개발, 마케팅 등에 활용될 예정이다.

• Clinical and Experimental Emergency Medicine
• /
• 제5권4호
• /
• pp.240-248
• /
• 2018

Objective Determine differences between faculty, residents, and nurses regarding night shift preparation, performance, recovery, and perception of emotional and physical health effects. Methods Survey study performed at an urban university medical center emergency department with an accredited residency program in emergency medicine. Results Forty-seven faculty, 37 residents, and 90 nurses completed the survey. There was no difference in use of physical sleep aids between groups, except nurses utilized blackout curtains more (69%) than residents (60%) and faculty (45%). Bedroom temperature preference was similar. The routine use of pharmacologic sleep aids differed: nurses and residents (both 38%) compared to faculty (13%). Residents routinely used melatonin more (79%) than did faculty (33%) and nurses (38%). Faculty preferred not to eat (45%), whereas residents (24%) preferred a full meal. The majority (>72%) in all groups drank coffee before their night shift and reported feeling tired despite their routine, with 4:00 a.m. as median nadir. Faculty reported a higher rate (41%) of falling asleep while driving compared to residents (14%) and nurses (32%), but the accident rate (3% to 6%) did not differ significantly. All had similar opinions regarding night shift-associated health effects. However, faculty reported lower level of satisfaction working night shifts, whereas nurses agreed less than the other groups regarding increased risk of drug and alcohol dependence. Conclusion Faculty, residents, and nurses shared many characteristics. Faculty tended to not use pharmacologic sleep aids, not eat before their shift, fall asleep at a higher rate while driving home, and enjoy night shift work less.

• The Journal of Korean Physical Therapy
• /
• 제34권5호
• /
• pp.212-217
• /
• 2022

Purpose: This study sought to investigate the effects of visual cue deprivation balance training by applying head control feedback to the balance function and the fall index in older people. Methods: The study was conducted on 26 older people at the S Hospital in Gyeongsansi. The patients were randomly divided into the experimental groupI (EGI, n=9), the experimental groupII (EGII, n=9), and the control group (CG, n=8). The three groups were trained for 30 minutes three times a week for four weeks. To assess the patients' static balance function, their limits of stability (LOS) was measured using the BioRescue system, (RM Ingenierie, France), composed of a pressure platform that can measure force in diverse ways, a computer, and a monitor. The dynamic balance function was measured using the Berg Balance Scale (BBS). Also, the fall index was measured to evaluate the risk of falling. A paired t-test was performed to compare pre- and post-training performance within the groups. One-way ANOVA was performed for comparing the three groups. A post hoc least significant difference (LSD) test was also performed. Results: The results of the LOS showed a significant difference after training in the EGI and EGII groups (p<0.05). As a result of the difference between the three groups, there was a significant difference after training (p<0.05). The results of the BBS showed a significant difference after training in the EGI group (p<0.05). As a result of the difference between the three groups, there was a significant difference after training (p<0.05). Conclusion: Visual cue deprivation balance training applying head control feedback is effective in improving the dynamic balance function in older people. It is also necessary to constantly maintain the head orientation by feedback and to properly control the head movement.

• Parasites, Hosts and Diseases
• /
• 제60권5호
• /
• pp.327-338
• /
• 2022

This study determined the recent status and trend of Pneumocystis jirovecii pneumonia (PcP) in the non-human immunodeficiency virus (HIV) (non-HIV-PcP) and HIV (HIV-PcP) infected populations using data from the Health Insurance Review & Assessment Service (HIRA) and the Korea Disease Control and Prevention Agency (KDCA). SaTScan and Join-point were used for statistical analyses. Non-HIV-PcP cases showed an upward trend during the study period from 2010 to 2021, with the largest number in 2021 (551 cases). The upward trend was similar until 2020 after adjusting for the population. Seoul had the highest number of cases (1,597) in the non-HIV-PcP group, which was the same after adjusting for the population (162 cases/1,000,000). It was followed by Jeju-do (89 cases/1,000,000). The most likely cluster (MLC) for the non-HIV-PCP group was Seoul (Relative Risk (RR)=4.59, Log Likelihood Ratio (LLR)=825.531), followed by Jeju-do (RR=1.59, LLR=5.431). An upward trend was observed among the non-HIV-PcP group in the Jeju-do/Jeollanam-do/Jeollabuk-do/Gyeongsangnam-do/Busan/Daejeon/Daegu/Ulsan joint cluster (29.02%, LLR=11.638, P<0.001) located in the southern part of Korea. Both women and men in the non-HIV groups showed an overall upward trend of PcP during the study period. Men in the 60-69 age group had the highest annual percentage change (APC 41.8) during 2014-2019. In contrast, the HIV groups showed a falling trend of PcP recently. Men in the 60-69 age group had the most decrease (APC -17.6) during 2018-2021. This study provides an analytic basis for health measures and a nationwide epidemiological surveillance system for the management of PcP.

• 산업진흥연구
• /
• 제7권3호
• /
• pp.43-51
• /
• 2022

본 연구는 청소년기의 사회적 문화적인 영향 크게 받는 시기에 신체적. 정신적인 측면에서도 성장이 가속화되며 정체성을 찾아가는 과정에서 발달적, 상황적 스트레스를 경험하게 되며 감정의 혼란과 좌절에 대해서도 위기관리 능력이 부족하다. 따라서 이유 없이 불안하고 우울함에 빠지거나 사소한 자극에 대해 강한 적개심이나 공격성을 나타내는 특성이 있다. 청소년의 자살의 중요한 결정요인인 충동성에 대하여 이해함으로써 청소년의 자살 현황 과 실태를 통하여 자살에 대한 심각성을 인식하고 자살의 위험요인인 스트레스, 우울을 낮추고 보호요인으로 자아존중감 향상을 목적으로 생명존중교육 프로그램을 통하여 생명존중의 가치를 실천하며 생명존중교육의 접근방법과 현황으로 효과성을 분석함으로써 청소년의 자살예방 효과를 분석하는데 의의가 있다.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2021년도 봄 학술논문 발표대회
• /
• pp.25-26
• /
• 2021

Due to COVID-19, the spread of non-face-to-face culture is increasing the time spent indoors. Accordingly, it is necessary to reduce indoor air pollutants. Also, among building materials, there are paints. As the number of coatings increases, the coating film becomes thick, and there is a risk of cracking and falling off. Therefore, this study is to examine the adsorption properties of indoor air pollutants according to the number of coatings of a paint mixed with powdered activated carbon. In the experimental plan, the addition ratio of powdered activated carbon was selected as 30%, and the number of coatings was selected as primcoating, second coat, and finishing coat, and the concentration of formaldehyde and volatile organic compounds were measured. As a result, as the number of coatings increased, the concentration of formaldehyde and volatile organic compounds tended to decrease. This is considered to be due to the fact that not only the physical adsorption acted by the internal pores of the powdered activated carbon, but also because a lot of powdered activated carbon was present on the painted surface as the coating film was formed. However, since it is judged that there is an error in the concentration due to the inflow of external air as the chamber cover is opened to put the test object in the adsorption test process, it is considered that the experimental method needs to be supplemented.

• 한국정보통신학회논문지
• /
• 제26권12호
• /
• pp.1794-1799
• /
• 2022

최근 증가하고 있는 도로 위 적재 불량 화물차는 비정상적인 무게 중심으로 인해 물체 낙하, 도로 파손, 연쇄 추돌 등 교통안전에 위해가 되고 한번 사고가 발생하면 큰 피해가 유발할 수 있다. 하지만 이러한 비정상적인 무게 중심은 적재 불량 차량 인식을 위한 주행 중 축중 시스템으로는 검출이 불가능하다는 한계점이 있다. 본 논문에서는 이러한 사회 문제를 야기하는 적재 불량 차량을 관리하기 위한 객체 인식 기반 AI 모델을 구축하고자 한다. 또한 AI-Hub에 공개된 약 40만 장의 데이터셋을 비교 분석하여 전처리를 통해 적재 불량 차량 검지 AI 모델의 성능을 향상시키는 방법을 제시한다. 또한 객체 추적을 통해 실시간 검지를 수행하는 방법을 제안한다. 이를 통해, 원시 데이터를 활용한 학습 성능 대비 약 23% 향상된 적재 불량 차량의 검출 성능을 나타냄을 보였다. 본 연구 결과를 통해 공개 빅데이터를 보다 효율적으로 활용하여, 객체 인식 기반 적재 불량 차량 탐지 모델 개발에 적용할 수 있을 것으로 기대된다.