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Lupus mesenteric vasculitis can cause acute abdominal pain in patients with SLE.
Ju, Ji Hyeon,Min, Jun-Ki,Jung, Chan-Kwon,Oh, Soon Nam,Kwok, Seung-Ki,Kang, Kwi Young,Park, Kyung-Su,Ko, Hyuk-Jae,Yoon, Chong-Hyeon,Park, Sung-Hwan,Cho, Chul-Soo,Kim, Ho-Youn Nature Publishing Group 2009 Nature reviews. Rheumatology Vol.5 No.5
<P>Lupus mesenteric vasculitis (LMV) is a unique clinical entity found in patients who present with gastrointestinal manifestations of systemic lupus erythematosus, and is the main cause of acute abdominal pain in these patients. LMV usually presents as acute abdominal pain with sudden onset, severe intensity and diffuse localization. Other causes of abdominal pain, such as acute gastroenteritis, peptic ulcers, acute pancreatitis, peritonitis, and other reasons for abdominal surgery should be ruled out. Prompt and accurate diagnosis of LMV is critical to ensure implementation of appropriate immunosuppressive therapy and avoidance of unnecessary surgical intervention. The pathology of LMV comprises immune-complex deposition and complement activation, with subsequent submucosal edema, leukocytoclastic vasculitis and thrombus formation; most of these changes are confined to small mesenteric vessels. Abdominal CT is the most useful tool for diagnosing LMV, which is characterized by the presence of target signs, comb signs, and other associated findings. The presence of autoantibodies against phospholipids and endothelial cells might provide information about the likelihood of recurrence of LMV. Immediate, high-dose, intravenous steroid therapy can lead to a favorable outcome and prevent serious complications such as bowel ischemia, necrosis and perforation.</P>
실험 수업에서 경력교사와 예비교사의 시선을 통한 공감의 특징 연구
고경진(Ko Kyung Jin),김동용(Kim Dong Yong),이영지(Lee Young Ji),권승혁(Kwon Seung Hyuk),권용주(Kwon Yong Ju) 학습자중심교과교육학회 2017 학습자중심교과교육연구 Vol.17 No.8
최근에는 교사의 공감과 관련된 비언어적 교수 행동이 중요하다고 강조되고 있다. 그러나 현재 과학수업 현장에서 학생들은 교사의 공감이 부족하다고 느끼고 있었으며, 특히 실험 수업에서는 그 경향이 크다고 매우 크다. 따라서 본 연구에서는 시선 추적을 통해 실험 수업에서 경력교사와 예비교사의 시선을 통한 공감의 특징을 분석하고자 하였다. 이를 위해 약 1개월에 걸쳐 총 5회의 실험 수업 중 교사들의 시선을 추적하고 그 중 하나의 수업 중 시선을 대상으로 총 시선고정 횟수, 평균 시선고정 지속시간, 총 방문 횟수를 분석하였다. 그 결과 경력교사는 학생의 신체에 시선이 자주 방문했으며, 예비교사는 학생의 얼굴에 시선이 자주 방문한 것으로 나타났다. 그리고 경력교사는 학생에 대한 시선고정 횟수가 높았으나, 예비교사는 학생과 학습도구에 대한 시선고정 횟수가 높았다. 이러한 결과는 경력교사는 학생의 실험 수행 과정을 중요하게 생각했으며 학생의 신체로의 시선을 통한 공감을 주로 수행했음을 의미한다. 그리고 예비교사는 흥미나 이해정도를 중요하게 생각했으며 얼굴로의 시선을 통한 공감을 주로 수행했음을 의미한다. 본 연구 결과를 바탕으로 실험 수업에서 예비교사의 수업행동에 대한 체계적인 지도가 가능할 것이다. In recent years, it has been emphasized that nonverbal teaching behavior related to teacher empathy is important. However, in the current science classroom, students felt that teachers lacked sympathy, especially in experimental classes. Therefore, in this study, we tried to analyze the characteristics of empathy through the gaze of expert teachers and pre-service teachers in the experiment class using eye tracking. For this purpose, we analyzed the total number of fixations, average fixation duration, and total visit count of teachers during the experiment class. The results have been shown that the total visit count of expert teachers was most at the students body. But the total visit count of pre-service teachers was most at the students face. In addition, expert teachers had a high number of fixations for students, but pre-service teachers had a high number of fixations for students and learning tools. The results of this study suggest that the expert teachers have been important to the students experimental behavior and have mainly performed empathy through the gaze for the students’ body. And the pre-service teachers considered the degree of students’ interests and understanding to be important and they mainly performed empathy through the gaze for the students’ face. Based on the results of this study, it will be possible to systematically teach the pre-service teachers teaching behaviors in the experiment class.
고혜주(Ko, Hye-Ju),강민재(Kang, Min-Jae),권혁제(Kwon, Hyuk-Jae),최예린(Choi, Yaelin),이미금(Lee, Mi-Geum),최홍식(Choi, Hong-Shik) 한국음성학회 2013 말소리와 음성과학 Vol.5 No.1
During adolescence the mutational period is characterized by the changes in the laryngeal structure, the length of the vocal cords, and a tone of voice. Usually, adolescents at 15 or 16 reach the voice of adults but the mutational period is sometimes delayed. Therefore, studies on the voice of adolescents between 16 ~ 18 right after the mutational period are required. Accordingly, this paper attempted to provide basic data about the normal standard for patients with voice disorders during this period by evaluating the vocal characteristics of males and females between 16 ~ 18 with an objective device bycomparing and analyzing them by sex and age. The study was conducted on a total of 60 subjects composed of each 10 subjects of each age. The vocal analysis was conducted by MPT (Maximum Phonation Time) measurement, sustained vowels and sentence reading. As for /a/ sustained vowels, fundamental frequency, hereinafter referred to as F?, jitter, shimmer, noise-to-harmonic ratio, hereinafter referred to as NHR were measured by using the Multi-dimensional voice program (MDVP) among the Multi-Speech program of Computerized Speech Lab (Kay Elemetrics). The sentence reading, mean F?, maximum F? and minimum F? were measured using the Real-Time Pitch (RTP) Model 5121 among the Multi-Speech program of Computerized Speech Lab (Kay Elemetrics). As a result, according to sex, there were statistically significant differences in F?, jitter, shimmer, mean F?, maximum F?, and minimum F?; and according to age, there were statistically significant differences in MPT. In conclusion, the voice of the adolescents between 16 ~ 18 reached the maturity levels of adults but the voice quality which can be considered on the scale of voice disorders showed transition to the voice of an adult during the mutational period.
슬관절 내측 구획 골관절염에서 개방형 경골 근위 절골술의 고정 기기에 따른 임상적 결과
이주홍(Ju Hong Lee),박혁(Hyuk Park),고종현(Jong Hyun Ko) 대한정형외과학회 2015 대한정형외과학회지 Vol.50 No.5
목적: TomoFix<SUP>®</SUP> (A군)와 Aescula<SUP>®</SUP> plate (B군)에 따른 개방형 경골 근위 절골술(high tibial osteotomy, HTO)의 임상 및 방사선적 검사 결과를 평가하였다. 대상 및 방법: 2008년부터 HTO를 실시하여 평균 37.1개월간 추시한 64예를 대상으로 하였고, A군은 20예, B군은 44예였다. 평균나이는 50세(41-62세)였고, 남성이 20예(31.3%), 여성이 44예(68.7%)였다. 임상 결과는 kn ee society rating system (KSS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC)를 비교하였고, 방사선 결과는 역학적 축, 후방 경사도, 그리고 내측 관절 간격을 측정했다. 결과: 전체 환자의 술 전 역학적 축은 내반 7.8˚±2.4˚, 술 후 3개월 역학적 축은 외반 1.9˚±2.2˚였다. 최종 추시상 A군은 외반 2.1˚±3.1˚로 교정이 유지됐지만 B군은 외반 0.1˚±3.1˚로 교정 소실을 보였다. 후방경사도는 A군에서 보다 유의한 증가를 보였다. 내측 관절 간격은 두 군에서 모두 호전을 보였다. KSS와 WOMAC 점수도 의미있는 호전을 보였다(p<0.001). 결론: HTO의 임상 결과는 우수하였으며, 삽입형 금속판은 오랜 기간의 부분 체중부하가 필요하며, 잠김나사 금속판이 삽입형 금속판보다 교정 유지에 효과적이었다. Purpose: The purpose of this study was to compare the clinical and radiologic results of medial open wedge high tibial osteotomy (HTO) using either TomoFix<SUP>®</SUP> plate (group A) or Aescula<SUP>®</SUP> plate (group B) in patients with medial compartment osteoarthritis. Materials and Methods: Sixty-four consecutive patients who underwent HTO for medial compartmental osteoarthritis from 2008 were included. Mean follow-up duration was 37.1 months. Twenty men and 44 women with a mean age of 50 years (range, 41 to 62 years) were divided into group A (locking plate, n=20) and group B (spacer plate, n=44). Clinical results were evaluated using knee society rating system (KSS) and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Radiological results were obtained by measuring the mechanical axis, posterior tibial slope, and medial joint space width preoperatively, 3 months postoperatively, and at the final follow-up. Results: In overall patients, the mechanical axis was corrected from 7.8°±2.4° of varus preoperatively to 1.9°±2.2° of valgus 3 months after HTO. At the final follow-up, the mechanical axis was to 2.1°±3.1° of valgus which showed no statistical difference in group A. However, loss of correction was observed at the final follow-up, at 0.1°±3.1° of valgus angulation in group B. The increase of the posterior tibial slope was significantly greater in group A than group B. The joint space width in both groups was improved at last follow-up. All clinical results showed improvement after HTO, with significantly improved KSS and WOMAC scores (p<0.001). Conclusion: The overall clinical results after HTO for medial compartment osteoarthritis were satisfactory. A group of spacer plates needed for prolonged protective weight bearing and locking plate was effective in maintenance of correction.
Ilizarov 기기를 이용한 슬관절 주위 관절내 개방성 골절의 치험 6례
김용주,이상욱,김신근,권굉우,최창혁 대한골절학회 1996 대한골절학회지 Vol.9 No.1
There are many difficulties in treating open intraarticular fracture around the knee joint because of its combined neurovascular injury and comminution of fracture site. The difficulties lie in choosing a fixation method, postoperative care, and analyzing the results of the treatment. Recently there is growing preference in using Ilizarov apparatus. The merits of Ilizarov in fracture treatment are early weight bearing and easy compression and distraction. In cases of this study, difficulties were subclassified into problems, obstacles, and complications. Six cases of open intraarticular fracture around the knee joint were treated from Mar,, 1993 to Aug., 1994 and the average follow up period was twenty months and the results were as follows: 1. Of the six patients, there were five males and one female patients. 2. The cause of the fractures was traffic accident in five and crushing injury in one. 3. Of the six cases, five cases were combined femoral and tibial fractures and one case was only femoral condylar fracture. 4. In follow up study, there was thirty cases of difficulties such as pin site problem, pain, limitation of motion, and nonunion etc. 5. Of the seventy-four wires, pin site problem occurred at twenty pins but open wounds were cured without infection evidence. 6. The results were poor in all cases. 7. The Ilizarov technique requires adequate implantation and management to reduce an overall complication rate and improve functional results.
Song, Gyeong Ju,Kim, Kyung-Bum,Cho, Jae Yong,Woo, Min Sik,Ahn, Jung Hwan,Eom, Jong Hyuk,Ko, Sung Min,Yang, Chan Ho,Hong, Seong Do,Jeong, Se Yeong,Hwang, Won Seop,Woo, Sang Bum,Jhun, Jeong Pil,Jeon, De Elsevier 2019 APPLIED ENERGY Vol.247 No.-
<P><B>Abstract</B></P> <P>We propose a piezoelectric energy harvesting technology installed in a roadway speed bump. We have installed a module that can charge mobile phones utilizing a speed bump piezoelectric harvester (SBPH), which is easy to apply to roads. A highly integrated module with 40 piezo-generators was fixed and installed at the center of the speed bump. When a medium-sized vehicle passed the module at a speed of 30 km/h, an output voltage of 144 V<SUB>max</SUB>, output current of 45.2 mA<SUB>max</SUB>, and output power of 4086.08 mW<SUB>max</SUB> (6.81 W/m<SUP>2</SUP>) were measured at a load resistance of 2 kΩ. When the vehicle passed over the SBPH nine times, it charged a capacitor (10,000 μF) to provide 6 V for about 200 s, and the charged electrical energy was enough to operate a cellphone. The self-controlled battery charging system via electricity generated by the piezoelectric module could be applied to a speed bump installed on an actual road.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The harvester was installed in common speed bump on an actual road. </LI> <LI> The harvesting module produces 4086.08 mW<SUB>max</SUB> and 6.81 W/m<SUP>2</SUP>. </LI> <LI> The harvester successfully charged a mobile phone without external energy source. </LI> <LI> These technologies can improve self-controlled charging system on actual road. </LI> </UL> </P>