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임우석,허정윤,정상훈 한국인더스트리얼디자인학회 2024 산업디자인학연구 Vol.18 No.1
연구배경 온라인 협업 툴의 도입이 증가하고 있다. 온라인 협업 툴은 다양한 기능을 제공하고 업무 전반에 영향을 미치고 있으며, 사용자들은 단일 협업 툴이 아닌 다양한 온라인 협업 툴을 사용하고 있다. 사용하는 온라인 협업 툴의 증가로 인한 업무 환경의 변화는 불필요한 시간의 소요와 생산성의 저하를 가져올 수 있으므로, 온라인 협업 툴을 효과적으로 사용할 수 있는 개선이 필요하다. 연구방법 온라인 협업 툴을 활용한 협업의 문제점을 관찰하기 위해, 온라인 협업 툴을 활용한 실제 프로젝트를 진행하였다. 그리고 설문조사를 통해 문제점을 도출하고, 심층 인터뷰의 진행으로 인사이트와 개선 요구 사항을 도출하였다. 또한 인사이트와 개선 요구 사항을 바탕으로 개선 기능을 제안하였다. 연구결과 온라인 협업 툴을 활용한 협업은 ‘채널의 증가로 인한 커뮤니케이션의 중복 및 혼란’, ‘공유받은 파일•링크 관리의 번거로움’, ‘프로젝트 관리의 어려움’, ‘협업 툴 학습 및 규칙 유지’의 문제점이 있었다. 위 문제점들은 공통적으로 온라인 협업 툴 간의 잦은 전환으로 발생한 업무 방해와 불편함에서 비롯되었다. 이를 해결하기 위한 기능으로 협업 툴 통합 플랫폼과 업무 노트 그리고 프로젝트 관리자 모드를 제안하였다. 결론 본 논문은 온라인 협업 툴을 활용한 실제 프로젝트의 진행을 통하여 문제점을 발견하여, 온라인 협업 툴을 활용한 협업 경험을 개선할 수 있는 기능을 제안하였다는 것에 의의가 있다. Background using of online collaboration tools is increasing. Online collaboration tools provide a variety of functions and affect the overall business. users are using various online collaboration tools rather than a single collaboration tool. But it can take unnecessary time and reduce productivity, so improvements are needed to effectively use online collaboration tools. Methods In order to analyze the problems of collaboration using collaboration tools, actual projects were conducted. the problems were reaffirmed through the survey. insights, improvement requirements were derived through in-depth interview. We propose improvement features based on insights and improvement requirements. Results Collaboration using online collaboration tools had problems such as "confusion of communication due to increased channels", "difficulty in managing shared files and links", "difficulty managing project", "learning and maintaining collaboration tools." The above problems were caused by work interference caused by frequent switching between online collaboration tools. To solve this problem, a integration platform, work notes, and project manager mode were proposed. Conclusion This paper is meaningful in that it proposed a function to improve the collaboration experience using online collaboration tools by analyzing problems through the progress of projects using online collaboration tools.
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A Study of the Housing Needs of the aged and Elderly Residential Facilities in an Urban Area
임우석 서울대학교행정대학원 2007 The Korean Journal of Policy Studies Vol.21 No.2
The purpose of this study is to find out the demand for residence ofcitizens on the paid elderly residential facilities that has been heightened for itsuse in recent days with the focus on the paid nursing home facilities and the paidelderly treatment facilities. The subject for the survey was 200 adults of 35 yearsor older who reside in Seoul, and for the final analysis, a total of 169 copies ofvalid samples was used. The following is the major result of the study. For thereason of post-retirement entry into the nursing home facilities, the mostresponses came from the fact that they could live with the similar age people asneighborhood or friend. Appropriate residential area would be preferred for 7-12pyeong (1 pyeong=3.3058m2) for single use, and 12-15 pyeong for couples, andfor the appropriate security deposit and monthly living expense at the time ofentering into the facilities, the highest response was for 50 million won and500,000 won for the paid nursing home facilities, and 10-20 million won and600,000 won for the paid elderly treatment facilities. The most important criteriafor using the facilities was in the sequence of entry costs, facilities and others,and the consideration on the facility operator would be in the sequence of facili-ty operation capability and social reliability. And, for the annexation (coestab-lishment) of paid nursing home facilities and elderly treatment facilities, theopinion as desirable was shown high (73.9%).
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Gene expression profile analysis in cultured human neuronal cells after static magnetic stimulation
임우석,이순태,김승찬 한국바이오칩학회 2012 BioChip Journal Vol.6 No.3
Although the magnetic force has been used in various human environments and medicines, their influence on the nervous system has not been fully elucidated. In this study, we investigated mRNA expressions profiles of neuronal cells after the application of static magnetic fields. Two perpetual magnets were applied to the cultured SH-SY5Y human neuronal cell, and the gene expression profiles were evaluated by using human mRNA microarray targeting 30968 genes. Results showed that the expressions of 827-known genes were altered in response to the magnetic force. Among them, 112 genes showed significant changes(>2-fold changes); 44 genes were up- regulated and 68 genes were down-regulated. Among the up-regulated genes, we further confirmed the increased expressions of synapsin III and chloride channel-2 by using RT-PCR and immunocytochemistry. These re-sults suggest that static magnetic fields influence neuronal-and biological related gene expression profiles in human neuronal cells.
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Sun Ginseng Protects Endothelial Progenitor Cells From Senescence Associated Apoptosis
임우석,정진영,반재준,임지연,이순태,주건,김만호 고려인삼학회 2012 Journal of Ginseng Research Vol.36 No.1
Endothelial progenitor cells (EPC) are a population of cells that circulate in the blood stream. They play a role in angiogenesis and, therefore, can be prognostic markers of vascular repair. Ginsenoside Rg3 prevents endothelial cell apoptosis through the inhibition of the mitochondrial caspase pathway. It also affects estrogen activity, which reduces EPC senescence. Sun ginseng (SG),which is heat-processed ginseng, has a high content of ginsenosides. The purpose of this study was to investigate the protective effects of SG on senescence-associated apoptosis in EPCs. In order to isolate EPCs, mononuclear cells of human blood buffy coats were cultured and characterized by their uptake of acetylated low-density lipoprotein (acLDL) and their binding of Ulex europaeus agglutinin I (ulex-lectin). Flow cytometry with annexin-V staining was performed in order to assess early and late apoptosis. Senescence was determined by β-galactosidase (β-gal) staining. Staining with 4′-6-Diamidino-2-phenylindole verifi ed that most adherent cells (93±2.7%) were acLDL-positive and ulex-lectin-positive. The percentage of β-gal-positive EPCs was decreased from 93.8±2.0% to 62.5±3.6% by SG treatment. A fl uorescence-activated cell sorter (FACS) analysis showed that 4.9% of EPCs were late apoptotic in controls. Sun ginseng decreased the apoptotic cell population by 39% in the late stage of apoptosis from control baseline levels. In conclusion, these results show antisenescent and antiapoptotic effects of SG in human-derived EPCs, indicating that SG can enhance EPC-mediated repair mechanisms. Endothelial progenitor cells (EPC) are a population of cells that circulate in the blood stream. They play a role in angiogenesis and, therefore, can be prognostic markers of vascular repair. Ginsenoside Rg3 prevents endothelial cell apoptosis through the inhibition of the mitochondrial caspase pathway. It also affects estrogen activity, which reduces EPC senescence. Sun ginseng (SG),which is heat-processed ginseng, has a high content of ginsenosides. The purpose of this study was to investigate the protective effects of SG on senescence-associated apoptosis in EPCs. In order to isolate EPCs, mononuclear cells of human blood buffy coats were cultured and characterized by their uptake of acetylated low-density lipoprotein (acLDL) and their binding of Ulex europaeus agglutinin I (ulex-lectin). Flow cytometry with annexin-V staining was performed in order to assess early and late apoptosis. Senescence was determined by β-galactosidase (β-gal) staining. Staining with 4′-6-Diamidino-2-phenylindole verifi ed that most adherent cells (93±2.7%) were acLDL-positive and ulex-lectin-positive. The percentage of β-gal-positive EPCs was decreased from 93.8±2.0% to 62.5±3.6% by SG treatment. A fl uorescence-activated cell sorter (FACS) analysis showed that 4.9% of EPCs were late apoptotic in controls. Sun ginseng decreased the apoptotic cell population by 39% in the late stage of apoptosis from control baseline levels. In conclusion, these results show antisenescent and antiapoptotic effects of SG in human-derived EPCs, indicating that SG can enhance EPC-mediated repair mechanisms.
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