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체간안정화 훈련이 만성 뇌졸중 환자의 호흡기능에 미치는 효과
이경진(Kyeong-Jin Lee),정주현(Ju-Hyeoun Jeong),조명래(Myeong-Rae Jo),김세윤(Se-Yoon Kim),김난수(Nan-Soo Kim) 대한심장호흡물리치료학회 2019 대한심장호흡물리치료학회지 Vol.7 No.1
Purpose : The purpose of this study is to examine the effects of trunk stability training on improving trunk control, respiratory function, and respiratory muscle activation in stroke patients. Methods : The subjects were assigned to two groups: the intervention group (n=15) and the control group (n=15). Both groups participated in a conventional stroke rehabilitation program, but the intervention group also received trunk stability training for 30 minutes a day, 3 times a week, for 6 weeks. The main trunk stability exercise consisted of the dead bug exercise. Trunk control was assessed using a trunk impairment scale, and respiratory function (pulmonary function and respiratory muscle function) was assessed using spirometry. The data were analyzed using the Pearson correlation, independent t-test, and paired t-test. Results : Trunk control was significantly positively correlated with pulmonary function and respiratory muscle strength. Both groups showed a significant increase in trunk control and respiratory function. Conclusion : This study demonstrated that a conventional stroke rehabilitation program and trunk stability training have positive effects on respiratory function and respiratory muscle activation in stroke patients.
열처리시 냉간가공된 Zircaloy-4합금의 미세조직 및 재결정 거동
林潤洙,崔洋鎭,鄭蓮眺,魏明鏞 大田産業大學校 1999 한밭대학교 논문집 Vol.16 No.1
Effects of heat-treatment on the microstructure and recrystallization behavior of cold-worked Zircaloy-4 were studied. We used 70% cold-rolled, thin strip specimens. Heat-treatment of the specimens were performed at temperatures between 300℃ and 800℃ for 30 to 5,000 minutes. The recrystallization behavior were observed by means of polarized optical microscopy and TEM. Hardness were measurement by Micro-victors hardness tester. As the annealing time increased, the temperature region of hardness drop moved to lower, because the recovery and recrystallization could occur in lower temperature. The recrysatllization of cold-worked Zircaloy-4 alloys was completed between 500℃ and 600℃ for 60 min. The size of recrystallized grain visibly increased at 800℃ for above 600 min. The activation energy(Q) for recrystallization of Zircaloy-4 alloys was determined by the time for constant fraction technique and it was 253KJ/mo1.
( Sang-jin Lee ),( Kang-jin Jo ),( Jin-wook Park ),( Myeong Woo Kim ),( Ji-hoo Kim ) 한국고무학회 2018 엘라스토머 및 콤포지트 Vol.53 No.3
This study was aimed at improving the white index (WI) to prepare thermally expandable microspheres for wallpaper. In particular, thermally expandable microspheres were prepared for different colloidal silica particle sizes to study thermal properties, foaming ratio, and WI. The spheres obtained from tiny colloidal silica were the best in terms of WI and yellowing. Additionally, thermogravimetric analysis results show that small colloidal silica particles are more likely to be adsorbed physically or chemically to the microsphere surface, thereby improving WI at higher temperatures.
Sun-Jin Jo,임현우,Myeong Hee Bang,Mi Ok Lee,전태연,Jin-Sook Choi,Myung-Soo Lee,이원철,박용문 대한신경정신의학회 2011 PSYCHIATRY INVESTIGATION Vol.8 No.3
Objective The study was conducted to investigate the association between economic status and depressive symptoms by comparing the prevalence rates of depressive symptoms at community level and analyzing the possibility of depressive symptoms at individual level. Methods A survey was conducted from November, 2006 to November, 2007 on 966 and 992 representative subjects recruited by stratified clustered sampling in two regions located in Seoul. We used a standardized questionnaire including the Center for Epidemiologic Studies-Depression and questions on the socioeconomic characteristics. The adjusted prevalence rates of depressive symptoms were compared at community level, and multiple logistic regression analysis was performed to determine the association between depressive symptoms and economic statuses at individual level among each region. Results The adjusted prevalence of depressive symptoms was higher in the region with a high socioeconomic status (23.1%) than in the region with a lower economic status (16.6%)(p<0.001). However, logistic regression analysis of individual level revealed that a higher economic status was significantly associated with a lower possibility of depressive symptoms among the females in the low economic status region. This tendency was not observed among the males in both of the regions. Conclusion The association between economic status and depressive symptoms was found to be different when it was approached at community level or individual level. In addition, the association of two variables was different by gender at individual level. Further studies that consider the third mediators are needed to determine the association between the two variables. Objective The study was conducted to investigate the association between economic status and depressive symptoms by comparing the prevalence rates of depressive symptoms at community level and analyzing the possibility of depressive symptoms at individual level. Methods A survey was conducted from November, 2006 to November, 2007 on 966 and 992 representative subjects recruited by stratified clustered sampling in two regions located in Seoul. We used a standardized questionnaire including the Center for Epidemiologic Studies-Depression and questions on the socioeconomic characteristics. The adjusted prevalence rates of depressive symptoms were compared at community level, and multiple logistic regression analysis was performed to determine the association between depressive symptoms and economic statuses at individual level among each region. Results The adjusted prevalence of depressive symptoms was higher in the region with a high socioeconomic status (23.1%) than in the region with a lower economic status (16.6%)(p<0.001). However, logistic regression analysis of individual level revealed that a higher economic status was significantly associated with a lower possibility of depressive symptoms among the females in the low economic status region. This tendency was not observed among the males in both of the regions. Conclusion The association between economic status and depressive symptoms was found to be different when it was approached at community level or individual level. In addition, the association of two variables was different by gender at individual level. Further studies that consider the third mediators are needed to determine the association between the two variables.
스마트에너지 상호운용성 확보를 위한 유스케이스 도출 방법론에 관한 연구
조명진(Myeong Jin Jo),박예진(Jo, Ye Jin Park) 대한전자공학회 2020 대한전자공학회 학술대회 Vol.2020 No.8
Smart Grid is a business technology composed of next-generation power systems in which various ICT technologies, including AICBM, are converged and combined, and is continuously responding to rapidly changing power environment changes (systematic factors, technical factors, etc.) for interoperability with heterogeneous business industries. A standardized smart grid framework element is required to respond. In this paper, we present a methodology to derive a use case (use case) based on international standards in order to create a smart grid standardization framework environment and use it as a basic data to check the interoperability of the domestic smart grid business industry. General procedures are described accordingly. The International Organization for Standardization (IEC) has formed the SyC smart Energy2) system committee to define the use case methodology through the system engineering approach, and this paper defines the use case development approach by applying the corresponding mechanism, resulting in the development procedure and final schematic. Describe the process. Through this, a number of use cases will be collected and secured to contribute to the discovery of a number of domestic commercialization cases and the activation of the smart grid industry.
진혜진(Hye Jin Jin),최수진(Soo Jin Choi),배윤경(Yun Kyung Bae),이수연(Soo Yeun Lee),길명옥(Myeong Og Gil),박찬미(Chan Mi Park),왕준호(Joon Ho Wang),오원일(Wonil Oh),양윤선(Yoon Sun Yang),조인호(Inho Jo),김철기(Cheol-Ki Kim),송해룡(Hae-R 대한정형외과학회 2007 대한정형외과학회지 Vol.42 No.6
목적: 인간 골수로부터 간엽줄기세포를 분리 배양하여 기증자의 나이에 따른 분화능력을 비교하였다. 대상 및 방법: 저연령 그룹 (n=16, 12.5±5.8세)와 고연령 그룹 (n=4, 48.5±7.2세)으로 나눠 총 20명의 환자로부터 동의를 얻어 골수를 채취하였고, 채취한 골수로부터 간엽줄기세포를 추출하였으며, 세포 형태와 면역표현형을 분석하였다. 또한, 세포의 노화를 두 그룹에서 계대 배양하여 측정하였다. 골, 연골, 지방세포로의 분화를 관찰하기 위해 역전사 중합효소연쇄반응을 수행하였으며, alkaline phosphatase, von Kossa, safranin O와 oil red O 염색을 시행하였다. 결과: 총 20명의 골수에서 모두 간엽줄기세포를 추출하였고, 저연령 그룹에서 획득한 간엽줄기세포의 수가 고연령 그룹에 비해 약 5배 많았다. 세포의 노화는 두 그룹 모두 10세대 이후에서 나타났으며, 면역표현형도 두 그룹에서 유사한 형태를 보였다. 골, 연골, 지방세포로의 다양한 분화능력을 보였으며, 두 그룹간의 차이는 없었다. 결론: 본 연구의 결과는 골수 기증자의 나이는 골수 간엽줄기세포의 분화능력에 영향을 주지 않음을 보여 주었다. Purpose: The aim of study was to compare the differentiation capacity of mesenchymal stem cells (MSCs) obtained from human bone marrow (BM) according to the age of the donors. Materials and Methods: MSCs were isolated from the BM of young (n=16, 12.5±5.8 years) and elder (n=4, 48.5±7.2 years) patients with the consent of them. We analyzed the cell morphology and the cell surface markers of the MSCs. In addition, we assessed the cell senescence with serial cultures from both age groups. Cell pluripotentiality was analyzed by osteogenic, chondrogenic, and adipogenic induction media. We performed RT-PCR, a measurement of expression of alkaline phosphatase, and staining with von Kossa, safranin O, and oil red O stain. Results: All of the MSC samples tested, irrespective of the age of the donors, MSCs were all successfully isolated from twenty bone marrows. However, the number of cells of from the young donors was five times greater than that of the elderly donors. Senescence was observed over 10 passages in both age groups. The immunophenotypes of both age groups showed similar patterns. MSCs obtained from young and older donors showed the potential to differentiate into osteogenic, chondrogenic, and adipogenic lineages with no difference for both age groups. Conclusion: Our study supports that age does not influence the pluripotential capacity of human BM derived MSCs.
Preventive effect of Flavonoid Wogonin against Ethanol-induced Gastric Mucosal Damage in Rats
박수진 ( Park Su Jin ),여말희 ( Yeo Mal Hui ),김종수 ( Kim Jong Su ),이은희 ( Lee Eun Hui ),오태영 ( O Tae Yeong ),이기명 ( Lee Gi Myeong ),진주현 ( Jin Ju Hyeon ),조요원 ( Jo Yo Won ),함기백 ( Ham Gi Baeg ),조성원 ( Jo Seong Won 대한소화기학회 2003 대한소화기학회 추계학술대회 Vol.2003 No.-
Whether the wogonin (5, 7-dihydroxy-8-methoxyflavone), a flavonoid originated from the root of Scutellaria baicalensis Georgi, which has been shown to have anti-inflammatory and antitumor activities in various cell types, possesss gastric cytoprotective e