• Title/Summary/Keyword: cross-regulation

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Workflow Interruptions and Failed Action Regulation in Surgery Personnel

  • Elfering, Achim;Nutzi, Marina;Koch, Patricia;Baur, Heiner
    • Safety and Health at Work
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    • v.5 no.1
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    • pp.1-6
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    • 2014
  • Background: Workflow interruptions during surgery may cause a threat to patient's safety. Workflow interruptions were tested to predict failure in action regulation that in turn predicts near-accidents in surgery and related health care. Methods: One-hundred-and-thirty-three theater nurses and physicians from eight Swiss hospitals participated in a cross-sectional questionnaire survey. The study participation rate was 43%. Results: Structural equation modeling confirmed an indirect path from workflow interruptions through cognitive failure in action regulation on near-accidents (p < 0.05). The indirect path was stronger for workflow interruptions by malfunctions and task organizational blockages compared with workflow interruptions that were caused by persons. The indirect path remained meaningful when individual differences in conscientiousness and compliance with safety regulations were controlled. Conclusion: Task interruptions caused by malfunction and organizational constraints are likely to trigger errors in surgery. Work redesign is recommended to reduce workflow interruptions by malfunction and regulatory constraints.

Src Redox Regulation: There Is More Than Meets the Eye

  • Chiarugi, Paola
    • Molecules and Cells
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    • v.26 no.4
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    • pp.329-337
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    • 2008
  • Src-family kinases are critically involved in the control of cytoskeleton organization and in the generation of integrin-dependent signaling responses, inducing tyrosine phosphorylation of many signaling and cytoskeletal proteins. Activity of the Src family of tyrosine kinases is tightly controlled by inhibitory phosphorylation of a carboxy-terminal tyrosine residue, inducing an inactive conformation through binding with its SH2 domain. Dephosphorylation of C-ter tyrosine, as well as its deletion of substitution with phenylalanine in oncogenic Src kinases, leads to autophosphorylation at a tyrosine in the activation loop, thereby leading to enhanced Src activity. Beside this phophorylation/dephosphorylation circuitry, cysteine oxidation has been recently reported as a further mechanism of enzyme activation. Mounting evidence describes Src activation via its redox regulation as a key outcome in several circumstances, including growth factor and cytokines signaling, integrin-mediated cell adhesion and motility, membrane receptor cross-talk as well in cell transformation and tumor progression. Among the plethora of data involving Src kinase in physiological and pathophysiological processes, this review will give emphasis to the redox component of the regulation of this master kinase.

Drug Release from Ph-sensitive Interpenetrating Polymer Net-works Hydrogel Based on Poly(ethylene glycol) Macromer and Poly (acrylic acid)Prepared by UV Cured Method

  • Kim, In-Sook;Kim, Sung-Ho;Cho, Chong-Su
    • Archives of Pharmacal Research
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    • v.19 no.1
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    • pp.18-22
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    • 1996
  • Acrylate-terminated poly (ethylene glycol) (PEG) macromer was prepared by the reaction of PEG with acryloyl chloride. Photopolymerization of PEG macromer resulted in the formation of cross-linked PEG network. Interpenetrating polymer networks (IPNs) based on PEG and poly(acrylic acid) (PAA) was obtained via template polymerization of AA to the PEG network by UV curing. The swelling degree of the IPNs hydrogel increased with an increase of pH value due to the association-dissociation between carboxylic acid of PAA and either of PEG through hydrogen bounding. The swelling-deswelling behavior proceeded reversibly for the IPNs upon changing pH. Release of indomethacin from the IPNs demonstrated "on-off" regulation with pH fluctuation.

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Assessment Method and Calculations for Protective Conductor of TN-S System and IEC 60364 Application (IEC 60364 적용 및 TN-S 시스템에서 보호 도체 산정 및 적정성에 관한 연구)

  • Kim, Gi-Hyun;Lee, Ju-Chul;Choi, Young-Kyu;Kim, Han-Su;Lee, Young-Chul
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.26 no.2
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    • pp.86-91
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    • 2012
  • A conductor has been produced according to IEC standard and low voltage electrical facility has been installed according to IEC 60364. So we must comply with international standard for design, construction and inspection. But because of many related and varied standards, it is difficult to apply to design and inspect for electrical equipment. We researched the necessity of design guide which is detailed and systematization from survey. For detailed design guide, we suggest calculation method of protective conductor cross-sectional area at TN-S system according to BS 7671 regulation and KS C IEC 60364 standard.

A Study of Cross-border Trade in Second-hand Goods

  • Lee, Eun-Sook;Lee, Kwang-keun
    • Journal of Distribution Science
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    • v.11 no.11
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    • pp.89-99
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    • 2013
  • Purpose - The purpose of this research was to examine the regulation and distribution channel of second-hand goods in cross-border trade in order to propose methods of protecting consumers through the international standardization of the intensifying second-hand trade and resource recycling. Research design, data, methodology - This study first defines several concepts relevant to research in international second-hand goods. Second, a questionnaire and interviews were conducted with manufacturers of second-hand toner cartridges and automobile parts to identify the current status of export and manufacturing. Results - The study proposes the international standardization of second-hand goods and waste to protect consumers and promote efficient resource recycling. Conclusions - The results of the study reveal that second-hand goods (except automobiles) do not have an HSK code to use for import/export data collection. Though used car exports are declining, used cars are increasing. Collecting data on used car parts is impossible because the buyers purchase and ship the second-hand parts.

Proteomics-Driven Identification of SCO4677-Dependent Proteins in Streptomyces lividans and Streptomyces coelicolor

  • Choi, Si-Sun;Kim, Seon-Hye;Kim, Eung-Soo
    • Journal of Microbiology and Biotechnology
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    • v.20 no.3
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    • pp.480-484
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    • 2010
  • AfsR2 is a global regulatory protein that stimulates antibiotic biosynthesis in both Streptomyces lividans and S. coelicolor. Previously, various afsR2-dependent genes including a putative abaA-like regulatory gene, SCO4677, were identified through comparative DNA microarray analysis. To further identify the putative SCO4677-dependent proteins, the comparative proteomics-driven approach was applied to the SCO4677-overexpressing strains of S. lividans and S. coelicolor along with the wild-type strains. The 2D gel electrophoresis gave approximately 277 protein spots for S. lividans and 207 protein spots for S. coelicolor, showing different protein expression patterns between the SCO4677-overexpressing strains and the wild-type strains. Further MALDI-TOF analysis revealed that only 18 proteins exhibited similar expression patterns in both S. lividans and S. coelicolor, suggesting that the SCO4677 could encode an abaA-like regulator that controls a few cross-species common proteins as well as many species-specific proteins in Streptomyces species.

The Circular Polarization Diversity Effect Considering XPD Factor in an Indoor Radio Propagation Environment

  • Ahn Je-Sung;Ha Deock-Ho;Cho Pyung-Dong
    • Journal of electromagnetic engineering and science
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    • v.6 no.1
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    • pp.24-29
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    • 2006
  • In this paper, we analyzed new two-branch polarization diversity at the receiving end of a mobile link which a transmitter emits circularly polarized wave. To analyze the correlation coefficient considered by XPD(Cross Polarization Discrimination) between the two received signals, a simple theoretical model of circular polarization diversity is adopted and experimental measurements are also conducted. From both theoretical and measurement results, it can be seen that the proposed circular polarization diversity scheme is more effective than that of the conventional linear polarization diversity.

Exploiting the Fanconi Anemia Pathway for Targeted Anti-Cancer Therapy

  • Jo, Ukhyun;Kim, Hyungjin
    • Molecules and Cells
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    • v.38 no.8
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    • pp.669-676
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    • 2015
  • Genome instability, primarily caused by faulty DNA repair mechanisms, drives tumorigenesis. Therapeutic interventions that exploit deregulated DNA repair in cancer have made considerable progress by targeting tumor-specific alterations of DNA repair factors, which either induces synthetic lethality or augments the efficacy of conventional chemotherapy and radiotherapy. The study of Fanconianemia (FA), a rare inherited blood disorder and cancer predisposition syndrome, has been instrumental in understanding the extent to which DNA repair defects contribute to tumorigenesis. The FA pathway functions to resolve blocked replication forks in response to DNA interstrand cross-links (ICLs), and accumulating knowledge of its activation by the ubiquitin-mediated signaling pathway has provided promising therapeutic opportunities for cancer treatment. Here, we discuss recent advances in our understanding of FA pathway regulation and its potential application for designing tailored therapeutics that take advantage of deregulated DNA ICL repair in cancer.

Impact of International regulatory collaboration on Pharmaceutical trade (국가 간 의약품 규제 협력이 의약품 무역에 미치는 영향)

  • Jaeyoun Roh;Iyn-Hyang Lee
    • Korea Trade Review
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    • v.47 no.5
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    • pp.95-113
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    • 2022
  • Tariffs on pharmaceuticals are generally low, but the time-consuming and costly licensing procedures of importing countries may act as barriers to trade. Accordingly, in terms of improving export competitiveness through cost reduction of exporting countries and improving public health for importing countries, international regulatory collaboration is effective for both countries. However, little is known about the impact of cross-border cooperation in pharmaceutical regulation on international trade. This study empirically analyzed the effect of cross-border regulatory collaboration on pharmaceutical trade using the gravity model. It was confirmed that the regulatory collaboration measures had a trade promotion effect in all drugs(HS29+HS30), finished drugs (HS30), and vaccines (HS300220). This study is meaningful in that it empirically analyzed with the consideration of the reference pharmacopoeia, safety and effectiveness in addition to the GMP inspection used in the previous study.

'Behind-the-Border' Regulatory Policies and Trade Agreements

  • Hoekman, Bernard
    • East Asian Economic Review
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    • v.22 no.3
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    • pp.243-273
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    • 2018
  • A consequence of global trade liberalization is that domestic regulatory policies have become a focal point for efforts to reduce the costs of engaging in cross-border production and exchange. This article discusses the general challenges of reducing trade frictions created by regulatory differences, focusing specifically on the role trade agreements might play in addressing regulatory spillovers. A case is made for a greater focus on plurilateral cooperation under the umbrella of the WTO.