• Title/Summary/Keyword: GSS

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The Influence of TTF on GSS Usage and Task Performance : Focusing on moderating effect of COA and FOA (과업기술적합도(TTF)가 그룹지원시스템(GSS)의 사용 및 성과에 미치는 영향 : 전유방식동의 정도와 전유 충실도의 조절효과를 고려하여)

  • Kang, So-Ra;Chun, Bang-Jee
    • Journal of Korea Technology Innovation Society
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    • v.10 no.4
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    • pp.755-788
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    • 2007
  • This study investigates the effects of individual and group level factors on the use of GSS (Group Support System) and task performance from GSS use. GSS facilitates the group work, so that GSS adoption is not necessarily influenced only by individual perceptions on information systems. Adaptive Structuration Theory (AST) in our study to explain the adoption and success from GSS use. AST contends that the success of IS is not necessarily the technical fit between tasks and technology, instead the political outcome among user socializations. We have the following two research inquires: Are the IS use and performance maximized when information technologies are provided properly?; and, Does TTF always influence positively on IS use (or performance)? To research these issues, we investigate the influence of TTF (Task-Technology Fit) on use and performance of GSS, which is introduced to foster collaboration among organizational members. Drawing insights from the AST, we examine if COA (Consensus on Appropriation) among group members and FOA (Faithfulness of Appropriation) between those who use technology and who design it show any moderating effect. A questionnaire survey was conducted on firms using the GSS for one month from June 2 to June 27 2005 and a sample of 303 responses was used for a statistical analysis. The result demonstrates that TTF exerts a positive influence on use and performance of GSS. We find that the stronger the COA, the greater the effect of W on use of GSS and performance. FOA likewise has a positive effect on both use of GSS and performance. The TTF model has been widely applied to studies on individual performance of information system, whereas the AST theory specifically explains members' adaptation process to information system. By integrating the AST theory with the TTF model, the study contributes to heightening our understanding on if and how individual performance varies with the use of GSS.

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Quantitative analysis of gene expression pattern in aspergillus nidulans mycelia by sequencing of 3-directed cDNA clones

  • Park. Yoon-Dong;Lee, Dong-Whan;Lee, Seog-Jae;Kim, Jong-Hwa;Chae, Keon-Sang
    • Journal of Microbiology
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    • v.34 no.1
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    • pp.25-29
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    • 1996
  • Since sequencing of randomly selected cDNA clones has been known to be a powerful approach to obtain information on gene expression pattern in specific cells or tissues, we have analyzed a 3'-directed cDNA library of vegetative mycelia of A. nidulans by single-pass sequencing of hundreds of randomly selected clones. Sequencing of 292 cDNA clones yielded 209 gene signatures (GSs) probably representing highly or lesser expressed genes in the vegetative mycelia. Among the 209 GSs, 25 (79 cDNA clones) appeared more than once and 184 only once. One GS appeared at a highest frequency of 6 times, 2 GSs5 times, 4 GSs 4 times, a GSs 3 times and 16 GSs twice. About 6.6% GSs comprizing of 13 GSs showed alternative polyadenylation. Among 23 redundant GSs, three were common in both mycelia and sexual organs, and 22 were probably mycelia-specific. Out of 209 GSs, 36 were identified in GenBank showing of 70% or greater similaritis. Only six GSs were for A. nidulans genes, and 13 GSs were of DNA or genes encoding cytoplasmic or organellar proteins. This pattern is similar to those in the human HepG2 cell line and in human colonic mucosa, although very few genes for nuclear proteins and for protein synthesis were in A. nidulans.

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Effects of three different formulae of Gamisoyosan on lipid accumulation induced by oleic acid in HepG2 cells

  • Go, Hiroe;Ryuk, Jin Ah;Hwang, Joo Tae;Ko, Byoung Seob
    • Integrative Medicine Research
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    • v.6 no.4
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    • pp.395-403
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    • 2017
  • Background: Gamisoyosan (GSS) is an herbal formula which has been used to treat women's diseases for several hundred years in Korea. GSS is one of the three most common prescriptions among women and is used to treat menopausal symptoms. Fatty liver disease is also common in postmenopausal women and can precede more severe diseases, such as steatohepatitis. The present study compared the effects of GSS on fatty liver using three different formulae, Dongui-Bogam (KIOM A), Korean Pharmacopeia (KIOM B) and Korean National Health Insurance (KIOM C). Methods: In oleic acid-induced HepG2 fatty liver cells, cellular lipid accumulation, triglycerides and total cholesterol were measured after treatment with three GSS formulae and simvastatin as a positive control. To investigate the phytoestrogen activity of GSS, MCF-7 cells were treated with GSS, and hormone levels were quantified. Also, qualitative analysis was performed with UPLC. Results: All types of GSS decreased cellular lipid accumulation. KIOM A was slightly less effective than the other two GSS formulae. KIOM B and KIOM C decreased cellular triglycerides more effective than simvastatin, but KIOM A did not affect cellular triglycerides. Cellular total cholesterol was decreased by all GSS and simvastatin. GSS showed phytoestrogen activity in MCF-7 cells. From the UPLC analysis data, geniposide, paeoniflorin and glycyrrhizin were detected form three GSS formulae. Conclusion: These results suggest that all GSS formulae have a beneficial effect on fatty liver disease during menopause and that differences of formula have no effect on the efficacy of the prescription.

Adapted GSS Load Sharing Algorithm for Heterogeneous Cluster (이기종 클러스터를 위한 수정된 GSS 부하 분할 알고리즘)

  • Goo, Bon-geun
    • The KIPS Transactions:PartA
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    • v.10A no.4
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    • pp.331-338
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    • 2003
  • Cluster is the cost-effective parallel processing environment, and consists of the off-the-shelf computers connected by the computer net works. The characteristics of cluster are the node heterogeneity, the variety of node load, and the variety of network load. Because these characteristics influence the performance of parallel program executions, the load sharing for cluster is important, and by using the proper load sharing strategy, we can reduce the execution time of parallel programs. In this paper, we propose modified GSS algorithm, αGSS. In the proposed load sharing algorithms α GSS, the size of tasks are decided using the BogoMIPS of node. From the result of out experiments, we conclude that the proposed αGSS algorithm is effective in the heterogeneous cluster.

Modified GSS Algorithm for Heterogeneous Cluster (이기종 클러스터를 위한 수정된 GSS 알고리즘)

  • 구본근
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2002.11a
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    • pp.405-408
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    • 2002
  • Cluster is the cost-effective parallel processing environment, and consists of the off-the-shelf computers connected by the computer networks. The characteristics of cluster are the node heterogeneity, the variety of node load, and the variety of network load. Because these characteristics influence the performance of parallel program executions, the load sharing for cluster is important, and by using the proper load sharing strategy, we can reduce the execution time of parallel programs. In this paper, we propose modified GSS algorithm, aGSS. In the proposed load sharing algorithms aGSS, the size of tasks are decided using the BogoMTPS of node. From the result of out experiments, we conclude that the proposed aGSS algorithm is effective in the heterogeneous cluster.

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Organizational Knowledge Acquisition: A Fuzzy GSS Framework (조직의 지식 획득: 퍼지 GSS 프레임웍)

  • 이재남
    • Proceedings of the Korea Inteligent Information System Society Conference
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    • 1999.10a
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    • pp.111-120
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    • 1999
  • Although the concept of viewing knowledge as a critical resource has been widely accepted in prior studies, it is not fully understood how to acquire available knowledge in order to improve organizational effectiveness. However, it si sure that organizational knowledge management should pursuit the achievement of the business goal by delivering relevant and useful information to the right person at the right time. Group Support System (GSS) can play an important role to transfer scatter information into meaningful business knowledge for supporting strategic corporate decision-making. This study proposes a fuzzy GSS framework for acquiring workgroup knowledge from individual memory and aggregating workgroup knowledge to organizational knowledge. This study also proposes an architecture to support the fuzzy GSS framework. The architecture consists of user agents, information management agents, and a fuzzy model manager. To illustrate how the fuzzy GSS framework can be used to support the whole process of organization knowledge acquisition, an Internet-based GSS was developed and applied in a marketing decision process. It showed that the framework was effective for acquiring organizational knowledge.

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"Dust, Ice, and Gas In Time" (DIGIT) Herschel observations of GSS30-IRS1

  • Je, Hyerin;Lee, Jeong-Eun
    • The Bulletin of The Korean Astronomical Society
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    • v.38 no.2
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    • pp.66.2-66.2
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    • 2013
  • As part of the DIGIT key program, we observed GSS30-IRS1, a Class I object located in Ophiuchus (d=125 pc), with Herschel-PACS. More than 70 lines were detected in 50-200 micron band including CO, OH, H2O, and [OI]. All lines, except for [OI], were detected only at the central spaxel of $9.4^{{\prime}{\prime}}{\times}9.4^{{\prime}{\prime}}$ while the [OI] emission is extended along the NE-SW direction. One interesting feature in GSS30-IRS1 is that the continuum is extended beyond PSF, unlike line emission. It suggests that the external heating is important in GSS30-IRS1. For detail analysis of line fluxes, we apply the non-LTE LVG model, RADEX as well as simple rotational diagrams. We also use the Monte Carlo radiative transfer package, RADMC-3D to understand the heating mechanism of dust grains around GSS30-IRS1. We will discuss about heating and cooling processes associated with GSS30-IRS1.

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The Influence Factors on Usage and Performance of Group Support System (GSS 사용과 성과 요인 : TAM, TTF, 조직구조화이론(AST) 혼합모형)

  • Kang, So-Ra;Yang, Hee-Dong;Park, Hyun-Yoe
    • Journal of Information Technology Services
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    • v.7 no.1
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    • pp.63-87
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    • 2008
  • This study investigates the effects of individual and group level factors on the use of GSS (Group Support System) and task performance from GSS use. GSS facilitates the group work, so that GSS adoption is not necessarily influenced only by individual perceptions on information systems as TAM insists. Adaptive Structuration. Theory (AST) joins with TAM in our study to explain the adoption and success from GSS use. AST contends that the success of IS is not necessarily the technical fit between tasks and technology, instead the political outcome among user socializations. We found that collected data from 303 individual IT staffs in a national bank. Our results demonstrate that traditional theories on TAM (Technology Acceptance Model) need to be refined, when considering the TTF(task-technology fit). TTF render high influences on PU(perceived usefulness). PEU(perceived ease of use) and FOA(faithfulness on appropriation). And FOA influences highly on our dependent variable. Implications and directions for future research are discussed.

Research of L1 GSS Receiver Performance Stabilization (신호감시국용 위성항법 L1 수신기 성능 안정화에 대한 연구)

  • Kim, Myung-Soon;Kim, Jae-Hyun;Lee, Sang-Uk
    • Journal of Satellite, Information and Communications
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    • v.7 no.1
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    • pp.1-6
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    • 2012
  • This research is performed to upgrade the performance and stabilize ther operation of GSS L1 receiver. One of the this research result is that the pre-development GSS receiver is amended to remove performance degradation factor so GSS L1 receiver performance enhancement is achieved. Other is that as a result of long run test, real environment test is performed and GSS L1 receiver operate under the GPS live signal receiving environment. Key result of this research is localization of GSS receiver.

Effects of Gamisoyosan on In Vitro Fertilization and Ovulation of Stressed Mice by Electric Shock

  • Kim, Ji-Yeun;Kwak, Dong-Hoon;Ju, Eun-Jin;Kim, Sung-Min;Lee, Dae-Hoon;Keum, Kyung-Su;Lee, Seo-Ul;Jung, Kyu-Yong;Seo, Byoung-Bu;Choo, Young-Kug
    • Archives of Pharmacal Research
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    • v.27 no.11
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    • pp.1168-1176
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    • 2004
  • Exposure to stress is known to precipitate or exacerbate many reproductive dysfunctions such as dysmenorrhea and infertility. Abnormalities of the reproductive system, as shown by reduced ovulation, fertilization and early embryonic development, are frequently seen in dysmenorrhea and infertility. It has been generally accepted that Gamisoyosan (GSS) is a useful prescription for treating insomnia, dysmenorrhea and infertility induced by a stress. Also GSS has been used traditionally to improve systemic circulation and biological energy production. Based on these, this study investigates whether GSS improved ovarian dysfunction caused by stress in mice. Mice were subjected to stress by electric shock on the foot for 30 min daily for a week and treated with GSS at 500 / body weight per day for one week. Thereafter, changes body weight, adrenal weight, ovulation rate, in vitro and in vivo fertilization, embryonic development and estradiol concentrations were measured. GSS markedly increased the body weight of mice with stress, but not normal mice. The administration of GSS caused a reduction in adrenal weight in stressed mice. GSS also had significant positive effects on ovulation rate, estradiol production, in vivo and in vitro fertilization rates and embryonic development. These results indicate that GSS can improve the reproductive dysfunctions caused by stress, and these may production biological energy.