• Title/Summary/Keyword: Center of effort

Search Result 812, Processing Time 0.028 seconds

Plant development and defense signal network research

  • Paek, Kyung-Hee
    • Proceedings of the Korean Society of Plant Biotechnology Conference
    • /
    • 2005.11a
    • /
    • pp.81-83
    • /
    • 2005
  • The Plant Signaling Network Research Center (SigNet) is a government-funded (by Korea's Ministry of Science and Technology (MOST)/ Korea Science and Engineering Foundation (KOSEF)) research center established at the School of Life Sciences and Biotechnology of Korea University in 2003. The SigNet conducts plant biological studies, especially in the field of developmental and defense biology. The research purpose of SigNet is dissection and analysis of plant development and defense signaling network through multiscientific approaches. Knowledge acquired from SigNet research scientists will provide new integrated view of understanding and potential application of plant development and defense mechanism. The other important mission of the SigNet is nurturing Center of Excellence for future outstanding research scientists of Korea. The SigNet will continue to expend every effort to achieve the goals for the future. Through passionate research endeavor of each laboratory and partnerships within inside and outside laboratories, we will continue to develop world-leading plant research group and to educate new generations of innovative researchers. As the SigNet looks toward the future, the SigNet will try to achieve its mission of research, education and service to the community. And the defense response research of our lab will be presented at later part.

  • PDF

Radionuclide (Tc-99m) Hysterosalpingography for Evaluation of Fallopian Tube Patency (동위원소(Tc-99m HAM)를 이용한 난관 조영술)

  • Park, Won;Kim, Chong-Soon;Park, Chang-Seo
    • The Korean Journal of Nuclear Medicine
    • /
    • v.21 no.2
    • /
    • pp.207-211
    • /
    • 1987
  • A prospecitive study was performed to evaluate the efficacy of Radionuclide Hysterosalpingography (RNHSG), that was modified by McCalley, et al. for the evaluation of fallopian tube. Using spontaneous migration of Tc99m labelled human albumin microsphers (HAM) and images got with Gamma camera, the study was made in 20 gynecological patients (44 tubes) in an effort to confirm the anatomical patency or obstruction as well as functional one at the Department of Obstetrics and Gynecology, National Medical Center from January 1, 1986 to July 31, 1986. The efficacy was also compared with that of contrast hysterosalpingography and surgical observation. Results obtained were as follows; 1) The Radionuclide Hysterosalpingography appeared to be a simple and accurate procedure as a mean with which anatomical tubal patency, as well as functional patency can be detected, although it's some limit in showing anatomical details of uterine cavity and tubes in comparison with contrast hysterosalpingography. 2) The predicted value of tubal obstruction was 82.4%. and that of tubal patency was 88.9% respectively. Overall efficacy (percent of tube correctly classified) of Radionuclide Hysterosalpingography was 88.6%. 3) There was no nuclide related complication during and after the procedure.

  • PDF

DC Characteristics of P-Channel Metal-Oxide-Semiconductor Field Effect Transistors with $Si_{0.88}Ge_{0.12}(C)$ Heterostructure Channel

  • Choi, Sang-Sik;Yang, Hyun-Duk;Han, Tae-Hyun;Cho, Deok-Ho;Kim, Jea-Yeon;Shim, Kyu-Hwan
    • JSTS:Journal of Semiconductor Technology and Science
    • /
    • v.6 no.2
    • /
    • pp.106-113
    • /
    • 2006
  • Electrical properties of $Si_{0.88}Ge_{0.12}(C)$ p-MOSFETs have been exploited in an effort to investigate $Si_{0.88}Ge_{0.12}(C)$ channel structures designed especially to suppress diffusion of dopants during epitaxial growth and subsequent fabrication processes. The incorporation of 0.1 percent of carbon in $Si_{0.88}Ge_{0.12}$ channel layer could accomodate stress due to lattice mismatch and adjust bandgap energy slightly, but resulted in deteriorated current-voltage properties in a broad range of operation conditions with depressed gain, high subthreshold current level and many weak breakdown electric field in gateoxide. $Si_{0.88}Ge_{0.12}(C)$ channel structures with boron delta-doping represented increased conductance and feasible use of modulation doped device of $Si_{0.88}Ge_{0.12}(C)$ heterostructures.

Development and characterization of 21 microsatellite markers in Daphne kiusiana, an evergreen broad-leaved shrub endemic to Korea and Japan

  • Lee, Jung-Hyun;Cho, Won-Bum;Yang, Sungyu;Han, Eun-Kyeong;Lyu, Eun-Seo;Kim, Wook Jin;Moon, Byeong Cheol;Choi, Goya
    • Korean Journal of Plant Taxonomy
    • /
    • v.47 no.1
    • /
    • pp.6-10
    • /
    • 2017
  • Microsatellite markers were isolated for Daphne kiusiana var. kiusiana (Thymelaeaceae), an evergreen broad-leaved shrub endemic to Korea and Japan. Because its populations in Jeju Island are morphologically controversial, and consistently threatened by anthropogenic pressures, taxonomic delimitation and conservation effort are required at the genetic level. We developed 21 polymorphic microsatellite loci from Next Generation Sequencing data. The primer set included di-, tri-, and tetra-nucleotide repeats. Variability in the markers was tested for 80 individuals of D. kiusiana from three natural populations in Jeju Island and Japan. Among the 21 loci, three were unavailable for population JKJU of Japan. The Neighbor-Joining tree based on microsatellite markers described here classified the three populations into two groups according to geographical or morphological traits. These will be a powerful genetics tool for determining the taxonomic boundary and establishing suitable conservation strategies for D. kiusiana in Jeju Island.

Enhanced Production of Maltotetraose-producing Amylase by Recombinant Bacillus subtilis LKS88 in Fed-batch Cultivation

  • KIM, DAE-OK;KYUNGMOON PARK;JAE-WOOK SONG;JIN-HO SEO
    • Journal of Microbiology and Biotechnology
    • /
    • v.7 no.6
    • /
    • pp.417-422
    • /
    • 1997
  • Recombinant Bacillus subtilis LKS88[pASA240] containing the amylase gene from Streptomyces albus KSM-35 was exploited in fed-batch cultivation for mass production of maltotetraose-producing amylase. The effects of dissolved oxygen, additional organic nutrients (peptone and yeast extract) and mixed carbon sources (glucose plus soluble starch) on amylase production were examined in fed-batch operations in an effort to determine the optimum conditions for a maximum amylase productivity. Under the optimum conditions, maximum amylase activity was about 4.2 times higher than that obtained in batch cultivations, indicating that mass production of maltotetraose-producing amylase could be accomplished in fed-batch cultivation of the recombinant B. subtilis strain.

  • PDF

BAP1 controls mesenchymal stem cell migration by inhibiting the ERK signaling pathway

  • Seobin Kim;Eun-Woo Lee;Doo-Byoung Oh;Jinho Seo
    • BMB Reports
    • /
    • v.57 no.5
    • /
    • pp.250-255
    • /
    • 2024
  • Due to their stem-like characteristics and immunosuppressive properties, Mesenchymal stem cells (MSCs) offer remarkable potential in regenerative medicine. Much effort has been devoted to enhancing the efficacy of MSC therapy by enhancing MSC migration. In this study, we identified deubiquitinase BRCA1-associated protein 1 (BAP1) as an inhibitor of MSC migration. Using deubiquitinase siRNA library screening based on an in vitro wound healing assay, we found that silencing BAP1 significantly augmented MSC migration. Conversely, BAP1 overexpression reduced the migration and invasion capabilities of MSCs. BAP1 depletion in MSCs upregulates ERK phosphorylation, thereby increasing the expression of the migration factor, osteopontin. Further examination revealed that BAP1 interacts with phosphorylated ERK1/2, deubiquitinating their ubiquitins, and thus attenuating the ERK signaling pathway. Overall, our study highlights the critical role of BAP1 in regulating MSC migration through its deubiquitinase activity, and suggests a novel approach to improve the therapeutic potential of MSCs in regenerative medicine.

A Case Study on Conversion of Idle Industrial Facilities - Focus on Tate Modern, Baltic Center for Contemporary Art, and Ruhr Museum - (유휴 산업시설의 컨버전 사례 분석 - 테이트모던, 발틱 현대미술센터, 루르박물관을 중심으로 -)

  • Cho, Youn-Joo;Shin, Kyung-Joo
    • Korean Institute of Interior Design Journal
    • /
    • v.20 no.3
    • /
    • pp.59-68
    • /
    • 2011
  • As society alters and building ages, many industrial facilities lost their function and abandoned in central city areas, and sometimes creating many problems. However, many European countries successfully transformed those urban decay to vivid cultural hub. The purpose of this study was to analyze a concept and methods of converting idle industrial facilities to successful cultural spaces. A case study of Tate Modern, Baltic Center for Contemporary Art, and Ruhr Museum was conducted using literature review, site visit, and interview methods. Findings indicated that converting historically significant idle industrial facilities to cultural center had not only reused abandoned site but also helped regenerating adjacent urban areas. This article demonstrates the key factors of successful conversion strategies as convenience, participation, placeness, historicity, and accessibly; and thus an effort to actively enhance the strategic factors were demanded in future conversion projects. A continuous studies on exploring extensive cases in various perspectives are required for further generalization in future studies.

The Basic Study of Development on Standard Model in Family Support Center (건강가정지원센터 표준화 모델 개발을 위한 기초연구)

  • Park, Jeong-Yun;Kang, Ki-Jung
    • Journal of Families and Better Life
    • /
    • v.29 no.4
    • /
    • pp.147-160
    • /
    • 2011
  • This purpose of research is to offer basic materials for analyzing organizational structure in an effort to develop a standardized model that considers regional characteristics with the ultimate goal being the establishment of a National Health and Family Support Center. Research methods include aliterature survey data. The research target is 94 centers run by the National Health Family Support Center training. These are assessed in terms of their regional characteristics. The objectives of this paper are as follows: 1. To look at the present National Healthy Family Support Center's yearly conditions investigate the regional characteristics. 2. To analyze the National Healthy Family Support Center's annual organizational managements and operations characteristics. 3. To analyze the National Healthy Family Support Center's regional characteristics (Urban-only-, Urban-Rural Integration, Rural-only-) in terms of its organizational management and operations. First, at the national, county, and ward levels, Health and Family Support Center can have family intervention purpose. Regional Center should be operated to keep pace with custom of different regions. Standardization can also be beneficial, including considerations such as agricultural needs and a type center. Effective center operations should also ensured. Second, standardized development model I had to insert this here because you mention one in the following paragraph. Original did not make sense. I hope this is what you meant.

On-trend utilization of rheological instruments in food industry (식품산업에서 물성분석장치의 활용 동향)

  • Oh, Im Kyung;Lee, Suyong
    • Food Science and Industry
    • /
    • v.51 no.1
    • /
    • pp.2-7
    • /
    • 2018
  • Increasing attention has been paid to rheological approaches in the food industry due to great awareness of the quality control of foods by objective analysis. Therefore, a lot of food manufacturers started to make a great of effort to instrumentally investigate the rheological properties of foods. However, the appropriate utilization of rheological instruments in the field of food science has been met with numerous technical challenges because of the lack of fundamental knowledge and knowhow. In this article, a variety of rheological instruments conventionally used in the food industry are reviewed. In addition, new rheological instruments that have been rapidly growing in popularity are introduced for potential applications. This article may provide an opportunity for the food industry to move toward the active utilization of rheological instruments.