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  1. Article ; Online: Response to 'Efficacy of parasternal block to decrease intraoperative opioid use in coronary artery bypass surgery via sternotomy: a randomized controlled trial' by Bloc

    Kim, Seung Cheol / Anwar, Sibtain

    Regional anesthesia and pain medicine

    2022  

    Language English
    Publishing date 2022-05-24
    Publishing country England
    Document type Letter
    ZDB-ID 1425299-5
    ISSN 1532-8651 ; 1098-7339 ; 0146-521X
    ISSN (online) 1532-8651
    ISSN 1098-7339 ; 0146-521X
    DOI 10.1136/rapm-2022-103731
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Photochemical and Patternable Synthesis of 2D Covalent Organic Framework Thin Film Using Dynamic Liquid/Solid Interface.

    Kim, Taewoong / Oh, Joohee / Kim, Seung Cheol / Ahn, Jong-Guk / Kim, Soyoung / Kim, Young Yong / Lim, Hyunseob

    Small methods

    2024  , Page(s) e2400063

    Abstract: 2D covalent organic frameworks (COFs) are highly porous crystalline materials with promising applications in organic electronics. Current methods involve either on-surface synthesis (solid surface) or interfacial synthesis (liquid/liquid, liquid/gas ... ...

    Abstract 2D covalent organic frameworks (COFs) are highly porous crystalline materials with promising applications in organic electronics. Current methods involve either on-surface synthesis (solid surface) or interfacial synthesis (liquid/liquid, liquid/gas interface) to create thin films for these applications, each with its drawbacks. On-surface synthesis can lead to contamination from COF powder or unreacted chemicals, while interfacial synthesis risks damaging the film during post-transfer processes. These challenges necessitate the development of alternative synthesis methods for high-quality 2D COF films. This study presents a novel approach for synthesizing homogeneous 2D COF thin films by combining photochemistry and a liquid-flowing system. Leveraging previous work on liquid flow systems to prevent contamination during solvothermal synthesis, this approach to the photochemical method, resulting in the synthesis of high-crystalline 2D COF films with tunable thickness is adopted. The photochemical approach offers spatially controllable energy sources, enabling patternable COF synthesis. Notably, it is successfully fabricated ultrasmooth patterned 2D COF films on hexagonal boron nitride, offering a streamlined process for optoelectronic device fabrication without additional pre, post-processing steps.
    Language English
    Publishing date 2024-05-09
    Publishing country Germany
    Document type Journal Article
    ISSN 2366-9608
    ISSN (online) 2366-9608
    DOI 10.1002/smtd.202400063
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Effect of Quality Control Program in Surgical Management of Early Cervical Cancer.

    Shim, Ji Eun / Kim, Mi-Kyung / Kim, Yun Hwan / Kim, Seung Cheol

    Journal of Korean medical science

    2021  Volume 36, Issue 45, Page(s) e316

    Abstract: Background: Regular assessments of clinical performance in gynecologic cancer surgery is important for the safety of patients. We evaluated the effects of quality control (QC) program on the treatment pattern and clinical outcomes of early cervical ... ...

    Abstract Background: Regular assessments of clinical performance in gynecologic cancer surgery is important for the safety of patients. We evaluated the effects of quality control (QC) program on the treatment pattern and clinical outcomes of early cervical cancer.
    Methods: Medical records of cervical cancer patients who received operation in our institution from January 2007 to December 2018 were retrospectively reviewed. Cases were divided into 2 groups, before and after the initiation of QC program, group 1 (2007-2013) and group 2 (2014-2018), based on the operation date. Two groups were compared in clinicopathologic variables, surgical methods, operative details, adjuvant treatments, recurrence and survival.
    Results: A total of 305 cervical cancer patients were included in the analysis, 210 in group 1 and 95 in group 2. In group 2, minimally invasive surgery (MIS) was more frequently performed (60.0% vs. 76.8%,
    Conclusion: QC program enforced stricter patient selection criteria for MIS and positively affected clinical outcomes in cervical cancer patients who underwent surgery. Systemic monitoring should be considered for patient safety.
    MeSH term(s) Adult ; Chemotherapy, Adjuvant ; Disease-Free Survival ; Female ; Humans ; Middle Aged ; Minimally Invasive Surgical Procedures ; Neoplasm Recurrence, Local ; Neoplasm Staging ; Program Evaluation ; Retrospective Studies ; Survival Rate ; Uterine Cervical Neoplasms/drug therapy ; Uterine Cervical Neoplasms/mortality ; Uterine Cervical Neoplasms/pathology ; Uterine Cervical Neoplasms/surgery
    Language English
    Publishing date 2021-11-22
    Publishing country Korea (South)
    Document type Journal Article
    ZDB-ID 639262-3
    ISSN 1598-6357 ; 1011-8934
    ISSN (online) 1598-6357
    ISSN 1011-8934
    DOI 10.3346/jkms.2021.36.e316
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Disparities between Uptake of Germline

    Hur, Young Min / Mun, Jaehee / Kim, Mi-Kyung / Lee, Maria / Kim, Yun Hwan / Kim, Seung-Cheol

    Journal of Korean medical science

    2021  Volume 36, Issue 38, Page(s) e241

    Abstract: Background: To assess the rate of germline : Methods: Institutional databases were searched to identify patients who were diagnosed with epithelial ovarian, fallopian tube, or primary peritoneal cancer (EOC) between 2009 and 2019 in two academic ... ...

    Abstract Background: To assess the rate of germline
    Methods: Institutional databases were searched to identify patients who were diagnosed with epithelial ovarian, fallopian tube, or primary peritoneal cancer (EOC) between 2009 and 2019 in two academic hospitals. Retrospective review on medical records was performed to collect clinico-pathologic variables, including performance of germline
    Results: A total of 840 women with EOC were identified during the study period. Of these, 454 patients (54.0%) received
    Conclusion: Although
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; BRCA1 Protein/genetics ; BRCA2 Protein/genetics ; Breast Neoplasms/diagnosis ; Breast Neoplasms/genetics ; Chemotherapy, Adjuvant ; Databases, Factual ; Fallopian Tube Neoplasms/drug therapy ; Fallopian Tube Neoplasms/genetics ; Fallopian Tube Neoplasms/pathology ; Female ; Germ Cells/cytology ; Germ Cells/metabolism ; Humans ; Male ; Middle Aged ; Mutation ; Ovarian Neoplasms/drug therapy ; Ovarian Neoplasms/genetics ; Ovarian Neoplasms/pathology ; Peritoneal Neoplasms/drug therapy ; Peritoneal Neoplasms/genetics ; Peritoneal Neoplasms/pathology ; Retrospective Studies ; Risk Factors ; Young Adult
    Chemical Substances BRCA1 Protein ; BRCA1 protein, human ; BRCA2 Protein ; BRCA2 protein, human
    Language English
    Publishing date 2021-10-04
    Publishing country Korea (South)
    Document type Journal Article
    ZDB-ID 639262-3
    ISSN 1598-6357 ; 1011-8934
    ISSN (online) 1598-6357
    ISSN 1011-8934
    DOI 10.3346/jkms.2021.36.e241
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Thiol-reducing agents prevent sulforaphane-induced growth inhibition in ovarian cancer cells

    Kim, Seung Cheol / Choi, Boyun / Kwon, Youngjoo

    Food & nutrition research. 2017 Jan. 1, v. 61, no. 1

    2017  

    Abstract: The inhibitory potential of sulforaphane against cancer has been suggested for different types of cancer, including ovarian cancer. We examined whether this effect is mediated by mitogen-activated protein kinase (MAPK) and reactive oxygen species (ROS), ... ...

    Abstract The inhibitory potential of sulforaphane against cancer has been suggested for different types of cancer, including ovarian cancer. We examined whether this effect is mediated by mitogen-activated protein kinase (MAPK) and reactive oxygen species (ROS), important signaling molecules related to cell survival and proliferation, in ovarian cancer cells. Sulforaphane at a concentration of 10 μM effectively inhibited the growth of cancer cells. Use of specific inhibitors revealed that activation of MAPK pathways by sulforaphane is unlikely to mediate sulforaphane-induced growth inhibition. Sulforaphane did not generate significant levels of intracellular ROS. Pretreatment with thiol reducers, but not ROS scavengers, prevented sulforaphane-induced growth inhibition. Furthermore, diamide, a thiol-oxidizing agent, enhanced both growth inhibition and cell death induced by sulforaphane, suggesting that the effect of sulforaphane on cell growth may be related to oxidation of protein thiols or change in cellular redox status. Our data indicate that supplementation with thiol-reducing agents should be avoided when sulforaphane is used to treat cancer.
    Keywords amides ; animal ovaries ; cell death ; cell growth ; cell viability ; mitogen-activated protein kinase ; neoplasm cells ; ovarian neoplasms ; oxidation ; reactive oxygen species ; sulforaphane ; thiols
    Language English
    Dates of publication 2017-0101
    Publishing place Taylor & Francis
    Document type Article
    ZDB-ID 2418338-6
    ISSN 1654-661X ; 1654-6628
    ISSN (online) 1654-661X
    ISSN 1654-6628
    DOI 10.1080/16546628.2017.1368321
    Database NAL-Catalogue (AGRICOLA)

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  6. Article ; Online: Fast one-step calculation of holographic videos of three-dimensional scenes by combined use of baseline and depth-compensating principal fringe patterns.

    Kim, Seung-Cheol / Kim, Eun-Soo

    Optics express

    2014  Volume 22, Issue 19, Page(s) 22513–22527

    Abstract: As a new approach for rapid generation of holographic videos, a so-called compressed novel-look-up-table(C-NLUT), which is composed of only two principal fringe patterns (PFPs) of baseline and depth-compensating PFPs (B-PFP, DC-PFP), is proposed. Here, ... ...

    Abstract As a new approach for rapid generation of holographic videos, a so-called compressed novel-look-up-table(C-NLUT), which is composed of only two principal fringe patterns (PFPs) of baseline and depth-compensating PFPs (B-PFP, DC-PFP), is proposed. Here, the hologram pattern for a 3-D video frame are generated by calculating the fringe patterns for all depth layers only by using the B-PFP, and then transforming them into those for their depth layers by being multiplied with corresponding DC-PFPs. With this one-step calculation process, the computational speed (CS) of the proposed method can be greatly enhanced. Experimental results show that the CS of the proposed method has been improved by 30.2% on the average compared to that of the conventional method. Furthermore, the average calculation time of a new hybrid MC/C-NLUT method, in which both of motion-compensation (MC) and one-step calculation schemes are employed, has been reduced by 99.7%, 65.4%, 60.2% and 30.2%, respectively compared to each of the conventional ray-tracing, LUT, NLUT, and MC-NLUT methods. In addition, the memory size of the proposed method has been also reduced by 82 × 10(6)-fold and 128-fold compared to those of the conventional LUT and NLUT methods, respectively.
    MeSH term(s) Algorithms ; Holography ; Imaging, Three-Dimensional/instrumentation
    Language English
    Publishing date 2014-09-22
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1491859-6
    ISSN 1094-4087 ; 1094-4087
    ISSN (online) 1094-4087
    ISSN 1094-4087
    DOI 10.1364/OE.22.022513
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Thiol-reducing agents prevent sulforaphane-induced growth inhibition in ovarian cancer cells.

    Kim, Seung Cheol / Choi, Boyun / Kwon, Youngjoo

    Food & nutrition research

    2017  Volume 61, Issue 1, Page(s) 1368321

    Abstract: The inhibitory potential of sulforaphane against cancer has been suggested for different types of cancer, including ovarian cancer. We examined whether this effect is mediated by mitogen-activated protein kinase (MAPK) and reactive oxygen species (ROS), ... ...

    Abstract The inhibitory potential of sulforaphane against cancer has been suggested for different types of cancer, including ovarian cancer. We examined whether this effect is mediated by mitogen-activated protein kinase (MAPK) and reactive oxygen species (ROS), important signaling molecules related to cell survival and proliferation, in ovarian cancer cells. Sulforaphane at a concentration of 10 μM effectively inhibited the growth of cancer cells. Use of specific inhibitors revealed that activation of MAPK pathways by sulforaphane is unlikely to mediate sulforaphane-induced growth inhibition. Sulforaphane did not generate significant levels of intracellular ROS. Pretreatment with thiol reducers, but not ROS scavengers, prevented sulforaphane-induced growth inhibition. Furthermore, diamide, a thiol-oxidizing agent, enhanced both growth inhibition and cell death induced by sulforaphane, suggesting that the effect of sulforaphane on cell growth may be related to oxidation of protein thiols or change in cellular redox status. Our data indicate that supplementation with thiol-reducing agents should be avoided when sulforaphane is used to treat cancer.
    Language English
    Publishing date 2017-08-28
    Publishing country Sweden
    Document type Journal Article
    ZDB-ID 2418338-6
    ISSN 1654-661X ; 1654-661X ; 1654-6628
    ISSN (online) 1654-661X
    ISSN 1654-661X ; 1654-6628
    DOI 10.1080/16546628.2017.1368321
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Critical Role of Surface Termination of Sapphire Substrates in Crystallographic Epitaxial Growth of MoS

    Park, Younghee / Ahn, Chaehyeon / Ahn, Jong-Guk / Kim, Jee Hyeon / Jung, Jaehoon / Oh, Juseung / Ryu, Sunmin / Kim, Soyoung / Kim, Seung Cheol / Kim, Taewoong / Lim, Hyunseob

    ACS nano

    2023  

    Abstract: A highly reproducible route for the epitaxial growth of single-crystalline monolayer ... ...

    Abstract A highly reproducible route for the epitaxial growth of single-crystalline monolayer MoS
    Language English
    Publishing date 2023-01-12
    Publishing country United States
    Document type Journal Article
    ISSN 1936-086X
    ISSN (online) 1936-086X
    DOI 10.1021/acsnano.2c08983
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Slim-structured electro-floating display system based on the polarization-controlled optical path.

    Kim, Seung-Cheol / Park, Seong-Jin / Kim, Eun-Soo

    Optics express

    2016  Volume 24, Issue 8, Page(s) 8718–8734

    Abstract: A new slim-type electro-floating display system based on the polarization-controlled optical path is proposed. In the proposed system, the optical path between the input plane and Fresnel lens can be made recursive by repetitive transmission and ... ...

    Abstract A new slim-type electro-floating display system based on the polarization-controlled optical path is proposed. In the proposed system, the optical path between the input plane and Fresnel lens can be made recursive by repetitive transmission and reflection of the input beam by employing a new polarization-based optical path controller (P-OPC), which is composed of two quaterwave plates, a half mirror and a reflective polarizer. Based on this P-OPC, the absolute optical path between the input plane and Fresnel lens, virtually representing the physical depth of the display system, can be reduced down to one third of its original path, which results in the same rate of decrease in the volume size of the display system. The operational principle of the proposed system is analyzed with the Jones matrix. In addition, to confirm the feasibility of the proposed system, experiments with test prototypes are carried out, and the results are comparatively discussed with those of the conventional system.
    Language English
    Publishing date 2016-04-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1491859-6
    ISSN 1094-4087 ; 1094-4087
    ISSN (online) 1094-4087
    ISSN 1094-4087
    DOI 10.1364/OE.24.008718
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Three-directional motion-compensation mask-based novel look-up table on graphics processing units for video-rate generation of digital holographic videos of three-dimensional scenes.

    Kwon, Min-Woo / Kim, Seung-Cheol / Kim, Eun-Soo

    Applied optics

    2016  Volume 55, Issue 3, Page(s) A22–31

    Abstract: A three-directional motion-compensation mask-based novel look-up table method is proposed and implemented on graphics processing units (GPUs) for video-rate generation of digital holographic videos of three-dimensional (3D) scenes. Since the proposed ... ...

    Abstract A three-directional motion-compensation mask-based novel look-up table method is proposed and implemented on graphics processing units (GPUs) for video-rate generation of digital holographic videos of three-dimensional (3D) scenes. Since the proposed method is designed to be well matched with the software and memory structures of GPUs, the number of compute-unified-device-architecture kernel function calls can be significantly reduced. This results in a great increase of the computational speed of the proposed method, allowing video-rate generation of the computer-generated hologram (CGH) patterns of 3D scenes. Experimental results reveal that the proposed method can generate 39.8 frames of Fresnel CGH patterns with 1920×1080 pixels per second for the test 3D video scenario with 12,088 object points on dual GPU boards of NVIDIA GTX TITANs, and they confirm the feasibility of the proposed method in the practical application fields of electroholographic 3D displays.
    Language English
    Publishing date 2016-01-20
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/AO.55.000A22
    Database MEDical Literature Analysis and Retrieval System OnLINE

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