컴퓨터 작업 시 의자 등받이 위치가 근육 활성도에 미치는 영향

김민우,변승진,이경은,정소영,조주영,최원자,최찬양,김경 대구대학교 특수교육재활과학연구소 2011 再活科學硏究 Vol.29 No.1

이 연구는 컴퓨터 작업시 의자 등받이 위치가 근육활성도에 미치는 영향을 알아보기 위해 36명의 근골격에 문제가 없는 성인 남녀가 참가하였으며 대상자들은 등받이가 뒤에 있는 의자와 등받이가 없는 의자, 등받이가 앞에 있는 우리들 의자를 무작위로 배정하고 동일한 컴퓨터 작업을 실시하게 하였다. 실험 중, 표면근전도기를 사용하여 의자에 따른 위등세모근, 머리널판근 그리고 척주세움근의 근활성도 변화를 측정하였다. 이 연구의 결과를 종합해보면 등받이가 앞에 있는 의자는 허리 근육의 부담을 줄이지만 목근육에 부담이 늘어나고 등받이가 뒤에 있는 의자와 없는 의자는 허리근육에는 다소 무리가 가지만 목근육에는 부담이 덜하다는 것을 알 수 있었다. 이러한 결과로 환자의 증상에 다라 컴퓨터 작업을 하는 동안 의자 등받이의 위치를 조절하여 치료에 도움이 될 수 있다고 생각되어진다. Objective : In this study, we checked and observed people's change of body muscle and muscle activity who do computer work on different chairs. We set three kind of chairs which one is a stool and another one is the back is fixed, and the other one is the back is fixed in front of chair. Subject : Accounting for 36 health men and women, we divided these people to 3 groups and put them on the three cases(position 1, position 2, position 3). We measured muscle activity of upper trapezius, Splenius Cervics, Erector Spinae from the groups by using surface electromyogram system. Methods : The standard of the electromyogram was 'reference voluntary contraction', and we carried out 'one way anova' to compare muscle activity of three groups. Results : In position 1, reference voluntary contraction of upper trapezius muscle activity was 123.2821%, Splenius Cervics was 141.7526%, and Erector Spinae was 254.5233%. In position 2, reference voluntary contraction of upper trapezius muscle activity was 132.9395%, Splenius Cervics was 141.7526%, and Erector Spinae was 246.6540%. In position 3, reference voluntary contraction of upper trapezius muscle activity was 190.6487%, Splenius Cervics was 270.2332%, and Erector Spinae was 182.1021%. Both upper trapezius and Splenius Cervics muscle activity of position 3 group was higher than the others groups. In position 1 group, Erector Spinae muscle activity was hight than the other groups. And either was position 2 group's(p<0.05). Conclusion : Therefore the chair which is the back is fixed in front is more comfortable for waist muscle but it's not good for neck. And the other chairs are better in waist muscle but not in neck muscle. So far, when we do a computer work, it's prefer to sit on the group 1&2's chairs to reduce neck muscle's stress and sit on group 3's chair to reduce waist muscle's stress.

Unravelling on Bienertia sinuspersici Genome of a Single Cell C₄(SCC₄), Non-krantz Photosynthetic Plant

Eun-Ju Byeon,Prabhakaran Soundrarajan,Yoon Jung Whang,So Yun Won,Jung Sun Kim 한국원예학회 2018 한국원예학회 학술발표요지 Vol.2018 No.10

고추 세균성점무늬병 저항성 유전자원과 그 주요 특성

변시은(Si?Eun Byeon),Alebel Mekuriaw Abebe,제갈윤혁(Yoon?Hyuk Jegal),Khin Pa Pa Wai,Muhammad Irfan Siddique,모황성(Hwang-Sung Mo),유희주(Hee Ju Yoo),장길수(Kil?Su Jang),황지은(Ji?Eun Hwang),전수경(Su?Gyeong Jeon),이수헌(Su-He 한국원예학회 2016 원예과학기술지 Vol.34 No.5

국내외에서 보고된 저항성 유전자원과 새로 찾은 자원을 포함한 고추 유전자원 총 33점에 세균성점무늬병원균(X. euvesicatoria)을 접종하여 과민반응형 저항성과 일반 저항성을 검정하고, 선발한 자원에 대하여 원예적 특성을 조사하였다. 국내에 보고된 4종의 race(1, 3, 7, 8)에 대한 과민반응형 저항성을 판별한 결과, Bs2 유전자를 보유한 KC00939와 Chilbok No.2는 예상대로 4종의 race에 과민형 반응을 나타내었다. Bs3 유전자를 보유한 Chilbok No.3는 예상대로 race 1과 7에 과민형 반응을 보였다. KC00939는 CMV와 BBWV의 복합 감염에 강한 저항성을 보이고 색소함량이 매우 높아 고색도 복합저항성 육종소재로서의 그 가치가 높았다. 이와 더불어 KC01327, KC01617, KC01015, KC01760, KC01779, KC01137, KC01328, KC01006, KC00127(PI369994), KC01704, KC00995, KC00131(PI369998) 및 KC01777이 높은 수준의 일반 저항성을 나타내었다. 이들 중 KC01617, KC01760, KC01779, KC01137, KC01704, KC01777은 이번 연구에서 세균성점무늬병 저항성으로 찾은 자원이다. 이들 세균성점무늬병 저항성 유전자원의 CMV와 BBWV의 복합 감염에 대한 저항성, 과실특성, 과실의 신미, 감미 및 색소함량(ASTA)을 분석한 결과는 세균성점무늬병 저항성 육종에 유용하게 활용될 것으로 기대된다. A total of 33 accessions of pepper (Capsicum spp.), including previously reported and newly discovered sources of resistance to bacterial spot caused by Xanthomonas euvesicatoria , were evaluated for their resistance to bacterial spot. The selected accessions were then grown and their horticultural characteristics were recorded. In a test for hypersensitive resistance (HR) to four races (P1, P3, P7, P8) of the pathogen found in Korea, KC00939 and Chilbok No.2, which carry the Bs2 gene, exhibited a hypersensitive response to all four races, as expected. Chilbok No.3, which carries the Bs3 gene, showed a hypersensitive reaction to race 1 and 7, as expected. KC00939 exhibited a high ASTA color value and tolerance to multiple infections from a viral complex of Cucumber mosaic virus (CMV) and Broad bean wilt virus (BBWV). Thus, this accession represents a promising genetic resource for breeding cultivars with multiple disease resistance and strong red coloration. KC01327, KC01617, KC01015, KC01760, KC01779, KC01137, KC01328, KC01006, KC00127, KC01704, and KC00995 did not exhibit hypersensitivity but showed a high level of general resistance when evaluated by spray inoculation. KC01617, KC01760, KC01779, KC01137, KC01704, and KC01777 are newly identified sources of resistance to bacterial spot. The previously and newly identified sources of resistance to bacterial spot evaluated in this study, including information about their resistance to CMV and BBWV complex in the field, the contents of pungent and sweet taste components, and the color values of dry fruits, will be useful for breeding pepper cultivars with resistance to bacterial spot.

Enhancement of the photon extraction of green and blue LEDs by patterning the indium tin oxide top layer

Byeon, Kyeong-Jae,Hong, Eun-Ju,Park, Hyoungwon,Yang, Ki-Yeon,Baek, Jong Hyeob,Jhin, Junggeun,Hong, Chang-Hee,Kim, Hyung Gu,Lee, Heon Institute of Physics 2009 Semiconductor science and technology Vol.24 No.10

<P>The indium tin oxide (ITO) transparent electrode layer on green and blue light-emitting diodes (LEDs) was patterned with various-sized periodic hole arrays, size ranging from 300 nm to 380 nm, using thermal nanoimprint lithography and inductively coupled plasma (ICP) etching processes. The imprinted resin was used as a mask layer and etch resistance of the imprinted resin was adjusted in order to control the tapered and enlarged etch profile of the ITO layer, since the tapered etch profile can improve the light extraction efficiency of the LED by prominent scatterings. Photoluminescence intensity from InGaN multi-quantum wells for the green LED structure showed that up to 4.6 times stronger emission was exhibited with the patterned ITO electrode, compared to the identical sample with an un-patterned blanket ITO electrode layer. An electroluminescence (EL) intensity of a blue LED sample witha patterned ITO electrode layer was increased up to 23% compared to that of the identical sample with an un-patterned blanket ITO electrode layer.</P>

THE EFFECT OF LUXURY BRANDS’ CSR COMMUNICATION ON PURCHASE INTENTION: AN FMRI INVESTIGATION

Eun-Ju Lee,Han-Ah Choi,Dong Hyun Kim,Hyunjin Park,Bo-Yong Park,Kyeongseob Byeon 글로벌지식마케팅경영학회 2019 Global Fashion Management Conference Vol.2019 No.07

Celiac Plexus Neurolysis for the Treatment of Patients with Terminal Cancer at a Tertiary University Hospital in Korea

Byeon, Gyeong-Jo,Park, Ju Yeon,Choi, Yun-Mi,Ri, Hyun-Su,Yoon, Ji-Uk,Choi, Eun-Ji Korean Society for Hospice and Palliative Care 2020 한국호스피스.완화의료학회지 Vol.23 No.1

Purpose: The aim of this study was to investigate celiac plexus neurolysis (CPN) for the treatment of cancerous upper abdominal pain in a tertiary university hospital in Korea. Methods: At the tertiary university hospital in Korea, electronic medical records of cancer patients who underwent CPN and died in the hospital from November 2009 to June 2018 were retrospectively analyzed. Results: The total number of subjects was 51. The 17 patients were from the Department of Gastroenterology (33.0%), followed by 11 patients from the Department of Hemato-oncology (21.6%), 11 patients from the Department of Anesthesia and Pain Medicine (21.6%), 9 patients from the Department of General Surgery (17.6%). The diagnosis was pancreatic cancer in 15 patients (29.4%), stomach cancer in 8 patients (15.7%), hepatobiliary cancer in 20 patients (39.2%), colon cancer in 1 patient (2.0%), esophageal cancer in 2 patient (3.9%) and intra-abdominal metastasis in 5 patients (9.8%). The mean survival time after the surgery was 66.4±55.0 days. The pain intensity before and 1 week after the procedure significantly decreased, but the amounts of opioids consumed before and 1 week after the procedure were not statistically significant. Side effects occurred after the procedure including temporary localized pain in 24 patients (47.0%), hypotension in 12 (23.5%), and diarrhea in 6 (11.8%). Conclusion: CPN is an effective and safe procedure for reducing upper abdominal pain caused by cancer, and it is necessary to perform CPN within the appropriate time by establishing a system of interdepartmental cooperation.

Colonic Chicken Skin Mucosa is an Independent Endoscopic Predictor of Advanced Colorectal Adenoma

( Eun Ju Chung ),( Ji Young Lee ),( Jaewon Choe ),( Hye Sook Chang ),( Jongcheol Kim ),( Dong Hoon Yang ),( Byong Duk Ye ),( Jeong Sik Byeon ),( Kyung Jo Kim ),( Suk Kyun Yang ),( Jin Ho Kim ),( Seung 대한장연구학회 2015 Intestinal Research Vol.13 No.4

Background/Aims: Chicken skin mucosa (CSM), surrounding colorectal adenoma, is an endoscopic finding with pale yellowspeckled mucosa; however, its clinical significance is unknown. This study aimed to evaluate the prevalence and clinical characteristics of CSM, and the association between colorectal carcinogenesis and CSM. Methods: This cross-sectional study was performed in 733 consecutive patients who underwent endoscopic polypectomy for colorectal adenoma after the screening of colonoscopy at the Asan Health Promotion Center between June 2009 and December 2011. The colonoscopic and pathological findings of colorectal adenoma including number, size, location, dysplasia, morphology, and clinical parameters were reviewed. Results: The prevalence of CSM was 30.7% (225 of 733 patients), and most CSM-related adenomas were located in the distal colon (93.3%). Histological analysis revealed lipid-laden macrophages in the lamina propria of the mucosa. Multivariate analyses showed that CSM was significantly associated with advanced pathology, including villous adenoma and high-grade dysplasia (odds ratio [OR], 2.078; 95% confidence interval [CI], 1.191-3.627; P=0.010), multiple adenomas (i.e., ≥2 adenomas; OR, 1.692; 95% CI, 1.143-2.507; P=0.009), and a protruding morphology (OR, 1.493; 95% CI, 1.027-2.170; P=0.036). There were no significant differences in polyp size or clinical parameters between patients with and without CSM. Conclusions: CSMrelated adenoma was mainly found in the distal colon, and was associated with advanced pathology and multiple adenomas. CSM could be a potential predictive marker of the carcinogenetic progression of distally located colorectal adenomas. (Intest Res 2015;13:318-325)

Nitrite Scavenging and Alcohol Metabolizing Activities of Hot Water Extract from Makgeoly and Its Angiotensin Converting Enzyme Inhibitory Effect

Eun Kyung Cho(조은경),Hee Yeon Kim(김희연),Hyeon Ji Byeon(변현지),Soo Won Kim(김수원),Young Ju Choi(최영주) 한국생명과학회 2010 생명과학회지 Vol.20 No.5

전통발효주 막걸리의 기능성을 증명하기 위하여 S사막걸리로부터 구입한 막걸리 침전물의 여러 가지 생리활성에 대하여 조사하였다. 우선 막걸리 침전물 열수 추출물의 항산화 효과를 측정하기 위해 DPPH radical 소거능과 SOD 유사활성을 측정하였다. 그 결과 DPPH법을 통해 측정한 막걸리 침전물 열수 추출물의 radical 소거능은 10 ㎎/㎖에서 48.0%으로 나타났으며, 농도가 증가함에 따라 유의적으로 증가하는 경향을 나타내었다. 또한 SOD 유사활성은 10 ㎎/㎖ 농도에서 98.7%로 비교적 높은 SOD 유사활성을 보였다. 항고혈압 활성 측정 실험에서는 현재 시판되고 있는 항고혈압제인 captopril은 0.1 ㎎/㎖에서 93.4%의 ACE 억제효과가 나타났고, 막걸리 침전물 열수 추출물 10 ㎎/㎖에서는 74.0%의 높은 저해 활성을 나타내었다. 따라서, 막걸리 침전물 열수 추출물은 인체에 부작용이 적은 천연 항고혈압소재로서 이용가능성이 높은 것으로 사료된다. 아질산염 소거능 측정 실험에서는 positive control인 Vit. C 1 ㎎/㎖의 경우 pH 1.2와 3.0에서는 74~64%, pH 6.0에서는 45%의 소거능을 보인반면, 막걸리 침전물 열수 추출물의 경우 pH 1.2와 3.0에서는 51~42%, pH 6.0에서는 28%의 소거능을 나타내었다. 막걸리 침전물 열수 추출물의 숙취해소 효능은 ADH와 ALDH 활성증진에 막걸리 침전물 열수 추출물이 미치는 영향을 조사함으로써 증명하고자 하였다. 그 결과, 알콜과 acetaldehyde 분해능은 높게 나타났다. 이상의 결과들은 막걸리 침전물의 우수한 기능성으로서의 이용 가능성에 대한 기초자료로 그 가치가 기대된다. In this study, we investigated the antioxidant activities, alcohol metabolizing activities, nitrite scavenging ability, angiotensin converting enzyme (ACE), and elastase inhibitory effects of hot water extract from Makgeoly (HWM). Antioxidant activities were measured by using 2,2 diphenyl 1 picryl hydrazyl (DPPH) free radical scavenging activity and SOD (superoxide dismutase) like activity. The DPPH radical scavenging activity and SOD like activity of HWM were remarkably increased in a dose dependent manner and were 48.0% and 98.7% at 10 ㎎/㎖, respectively. To determine the influence of HWM on alcohol metabolizing activity, the generating activities of reduced nicotinamide adenine dinucleotide (NADH) by alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH) were measured. The facilitating rates of ADH and ALDH activity by HWM were remarkably increased in a dose dependent manner and were 70.2% and 64.1% at 10 ㎎/㎖, respectively. The inhibitory activity against angiotensin converting enzyme (ACE) of HWM was increased in a dose dependent manner and was 74.2% at 10 ㎎/㎖. The nitrite scavenging ability of HWM showed the most remarkable effect at pH 1.2 and 2 ㎎/㎖. These results indicated that HWM may have valuable biological properties owing to their antioxidant activities, ADH and ALDH activity, nitrite scavenging ability, and ACE inhibitory activity.

저온기 시설수박 보온관리용 소형터널 자동화 기술개발

이은영(Eun Young Lee),정주형(Ju Hyung Jeong),임정현(Jeong Hyeon Lim),조승현(Seong Hyon Cho),안병구(Byeon Ggu An),서경원(Kuoung Won Seo) 한국원예학회 2021 한국원예학회 학술발표요지 Vol.2021 No.10

시설수박 재배면적(’20)은 8,957ha로써 전체 재배면적의 77.3%를 차지하고 있으며, 시설재배 면적이 증가하면서 저온기 시설 수박의 재배면적 또한 지속적으로 증가하고 있다. 저온기 재배에서는 2 ~ 3중의 비닐하우스 내부에 소형터널을 설치하여 보온하고 있으며 이로 인해 소형터널 수동 개폐에 의한 노동력이 증가하고 있다. 또한 비닐 개폐에 장시간이 소요됨에 따라 하우스 간 환경 차이 및 저온․ 고온 스트레스가 발생하고 있다. 이에 따라 저온기 시설하우스 내 소형터널 자동화에 의한 노동력 절감 및 소형터널 내 환경 정밀제어로 생육 안정화와 품질향상을 도모하고자 본 연구를 수행하였다. 저온기 시설수박 보온관리용 소형터널 자동화 기술을 개발하고자 조생흑미를 시험품종으로 하여 2월 19일에 3중 비닐하우스 내에 정식하였고, 야간의 저온 피해를 방지하기 위하여 발열선을 설치하여 가온하였다. 시험은 단동형 비닐하우스에서 수동과 자동 소형터널로 구분하여 수행하였으며 수동 소형터널은 내부에 폭 30cm의 미니터널을 추가 설치하였으며, 자동 소형터널은 터널 내부에 가온 효율을 높이기 위해 정식부위와 나머지 공간을 구분하는 수직 비닐막의 설치(구획화)와 미설치(미구획화)로 구분하였다. 시험 결과, 활착과 초기생육은 소형터널 내부에 미니터널을 설치하여 야간 온도가 높았던 수동 소형터널 처리가 약간 양호하였으나, 정식 25일 이후의 생육은 수동과 자동 구획화 소형터널 처리 간 비슷한 경향으로 나타났다. 착과율은 모든 처리에서 93% 이상으로 높았으며 과중과 당도 등의 과실 특성도 처리 간에 비슷한 경향이었다. 단동형 비닐하우스 10동에서 소형터널 개폐에 소요되는 시간은 수동의 경우 150분/인/일, 자동의 경우 5분/인/일이 소요되어 자동화 소형터널이 96.7%의 노동시간 절감 효과가 발생하였다.

종전 후 외세의 개입에 따른 영향과 갈등 - 사회경제적 요인으로 살펴본 제주4 3과 대만2 28의 원인(遠因)-

변현정 ( Byeon Hyeon-jeong ),고경아 ( Go Gyeong-a ),허선주 ( Sun-ju ),송은경 ( Song Eun-gyeong ),정창원 ( Jung Chang-won ) 제주대학교 탐라문화연구원 2018 탐라문화 Vol.0 No.59

본고에서는 일본의 식민지였던 대만과 조선의 전후처리과정에서 등장하였던 외세의 개입과 이 과정에서 발생한 모든 갈등의 집약체로서 제주4·3과 대만2·28에 대해 주목해 보았다. 두 사건 모두 국가에 의해 자행된 백색테러라는 공통점과 양민학살의 성격을 동시에 지니고 있다. 카이로회담에서 조선은 신탁통치, 대만은 중화민국으로의 귀속이 결정되었다. 미군은 신탁통치 과정에서 일제의 체제를 활용하면서 오히려 대중들의 삶을 어렵게 만들었다. 미군정의 통치를 받게 된 남한에서는 인민위원회의 활동이 두드러졌다. 특히, 인민위원회는 각 지역의 치안을 맡았는데, 제주도 또한 예외는 아니었다. 이들은 농민, 노동자, 부녀자 등의 일반 민중들의 지지를 받고 있었지만, 미군에게는 불만스러운 존재일 수밖에 없었다. 3·1절을 맞아 제주에서는 가두시위가 진행되었는데, 이를 계기로 미군정은 제주를 붉은 섬으로 인식하여 좌익세력을 척결하기로 한다. 이와 같은 미군정의 조치에 반발한 남로당은 1948년 4월 3일을 기해 무장봉기를 일으키게 되고, 그 진압과정에서 무차별적인 양민학살이 자행되었다. 대만은 중화민국으로 귀속되면서 국민당정부가 정권을 장악하게 된다. 행정장관에 임명된 陳儀는 절대적인 권력을 행사하며 대만에 대한 본격적인 통치를 시행하였다. 하지만 陳儀로 대표되는 국민당정부의 대만통치는 대만의 사정을 이해하지 못한 방향으로 흘러갔다. 대만은 국민당정부의 전매제 실시와 중국대륙으로의 물자 매각이라는 요인으로 인해 상당한 인플레이션을 겪었다. 당시 대만인들은 일제강점기를 거치며 근대적인 교육과 의료시스템을 경험한 바 있다. 특히, 이 과정에서 시행된 황민화정책으로 일본문화에 대해 상당히 익숙해 있었고, 국민당정부의 지도층은 이를 이해하고 파악하려는 노력대신 대만인이 노예화되었다는 인식을 하게 된다. 이에 반하여 대만인들은 국민당정부의 관직독점과 부정부패에 불만을 가지게 된다. 대만인은 점점 조국으로 돌아간다는 기대는 버리게 되었고, 대만인들은 스스로를 본성인(本省人)이라 칭하며, 외성인(外省人)들과의 거리를 두었다. 이러한 배경에서 발생한 충돌이 바로 2·28사건이다. 말하자면 일본의 패전이후 변화된 국제정세로 인해 조선과 대만에 유입된 외세들이 현지인들과 빚어진 갈등에서 제주4·3과 대만2·28이 발발하게 된 것이다. This study focused on the Jeju April 3 Incident and the Taiwan February 28 Incident as the result of the intervention of foreign powers and all the conflicts that occurred in the process of handling postwar issues in Taiwan and Joseon that were Japanese colonies. Both the two incidents were the white terrors committed by the governments and innocent people were massacred. At the Cairo Conference, it was agreed to establish a trusteeship in Joseon and to return Taiwan to the Republic of China. Under the trusteeship, the United States utilized the system of the Japanese Empire, and made people’s life even harder. In South Korea under the U.S. military rule, many activities of the People’s Committee were observed. In particular, the People’s Committee was in charge of public security in each region, and Jeju was no exception. The committee had a broad base of support from the general public including farmers, workers and women, but it must have been an eyesore to the U.S. military. In the meantime, a street demonstration was staged in Jeju to celebrate the March 1st Movement, and the U.S. military rule took this opportunity and decided to eradicate leftists, recognizing Jeju as the ‘Red Island.’ The South Korean Workers' Party rose up in arms against the action of the U.S. military rule on April 3, 1948, and innocent people were indiscriminately killed in the course of suppression. As Taiwan was returned to the Republic of China, the Kuomintang of China came to power. Chen Yi (陳儀), appointed as the Minister of Administration, wielded absolute power and started to rule Taiwan in earnest. The Kuomintang’s rule over Taiwan, led by Chen Yi, moved in a wrong direction without understanding the circumstances of Taiwan. Taiwan experienced serious inflation due to the introduction of the monopoly system by the Kuomintang government and the disposal of goods to Mainland China. Back then, Taiwanese people experienced modern education and medical systems in the era of Japanese Colonialism. In particular, the Japanization policy of the Japanese colonial rule made Taiwanese people familiar to Japanese culture in the process. The leadership of the Kuomintang government thought Taiwanese people were enslaved by Japan, instead of making efforts to understand and examine the situations. On the contrary, Taiwanese people started to express their dissatisfaction with the monopoly of public posts and corruption of the Kuomintang government. They gradually came to abandon their expectations for going back to their homeland, and called themselves benshengrens (本省人, meaning people of this province), keeping their distance from waishengrens (外省人, meaning people of non-Taiwan provinces). A clash that occurred against this backdrop was the February 28 Incident. In other words, foreign powers that flew into Joseon and Taiwan due to changing international situations after Japan’s defeat came into conflicts with natives, resulting in the Jeju April 3 Incident and the Taiwan February 28 Incident.