• Title/Summary/Keyword: Regulatory Aspects

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SOME POWER UPRATE ISSUES IN NUCLEAR POWER PLANTS

  • Tipping, Philip
    • Nuclear Engineering and Technology
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    • v.40 no.4
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    • pp.251-254
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    • 2008
  • Issues and themes concerned with nuclear power plant uprating are examined. Attention is brought to the fact that many candidate nuclear power plants for uprating have anyway been operated below their rated power for a significant part of their operating life. The key issues remain safety and reliability in operation at all times, irrespective of the nuclear power plant's chronological or design age or power rating. The effects of power uprates are discussed in terms of material aspects and expected demands on the systems, structures and components. The impact on operation and maintenance methods is indicated in terms of changes to the ageing surveillance programmes. Attention is brought to the necessity checking or revising operator actions after power up-rating has been implemented.

Problems of Gender Parity in the State Administration System: Conceptual and Empirical Aspects

  • Kireieva, Zoia;Sardaryan, Karinna;Voytsekhovska, Yuliya;Britchenko, Igor;Samoilenko, Viktoria;Popova, Yuliia
    • International Journal of Computer Science & Network Security
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    • v.22 no.2
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    • pp.369-375
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    • 2022
  • The article is timed to coincide with the thirtieth anniversary of Ukraine's independence. Based on the generalization of fundamental and applied studies of scientists, the author's vision of such category as the gender parity is conceptualized. Based on the analysis of historical events related to the development of the state, the formation of cultural and social values in determining the gender identity of modern society is substantiated. Based on the analysis of literary and regulatory sources, the structure of the state administration of Ukraine is visualized, which has become the basis for the diagnosis of gender aspects. Based on the analysis, the problems of gender parity in the public administration system of Ukraine are identified.

PLZF+ Innate T Cells Support the TGF-β-Dependent Generation of Activated/Memory-Like Regulatory T Cells

  • Kang, Byung Hyun;Park, Hyo Jin;Park, Hi Jung;Lee, Jae-Il;Park, Seong Hoe;Jung, Kyeong Cheon
    • Molecules and Cells
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    • v.39 no.6
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    • pp.468-476
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    • 2016
  • PLZF-expressing invariant natural killer T cells and CD4 T cells are unique subsets of innate T cells. Both are selected via thymocyte-thymocyte interaction, and they contribute to the generation of activated/memory-like CD4 and CD8 T cells in the thymus via the production of IL-4. Here, we investigated whether $PLZF^+$ innate T cells also affect the development and function of $Foxp3^+$ regulatory CD4 T cells. Flow cytometry analysis of the thymus and spleen from both CIITA transgenic C57BL/6 and wild-type BALB/c mice, which have abundant $PLZF^+$ CD4 T cells and invariant natural killer T cells, respectively, revealed that $Foxp3^+$ T cells in these mice exhibited a $CD103^+$ activated/memorylike phenotype. The frequency of $CD103^+$ regulatory T cells was considerably decreased in $PLZF^+$ cell-deficient $CIITA^{Tg}Plzf^{lu/lu}$ and $BALB/c.CD1d^{-/-}$ mice as well as in an IL-4-deficient background, such as in $CIITA^{Tg}IL-4^{-/-}$ and $BALB/c.IL-4^{-/-}$ mice, indicating that the acquisition of an activated/ memory-like phenotype was dependent on $PLZF^+$ innate T cells and IL-4. Using fetal thymic organ culture, we further demonstrated that IL-4 in concert with TGF-${\beta}$ enhanced the acquisition of the activated/memory-like phenotype of regulatory T cells. In functional aspects, the activated/ memory-like phenotype of Treg cells was directly related to their suppressive function; regulatory T cells of $CIITA^{Tg}PIV^{-/-}$ mice more efficiently suppressed ovalbumin-induced allergic airway inflammation compared with their counterparts from wild-type mice. All of these findings suggest that $PLZF^+$ innate T cells also augmented the generation of activated/memory-like regulation via IL-4 production.

A Study on the Effects of Drowsy Driving Prevention OOH Advertising Depending on Message Framing and Regulatory Focus (메시지 프레이밍과 조절 초점에 따른 졸음운전 예방 OOH 광고 효과에 관한 연구)

  • Yesolran Kim;Tae-eun Kim
    • The Journal of the Convergence on Culture Technology
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    • v.10 no.3
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    • pp.321-327
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    • 2024
  • Out-of-home (Out-of-Home) advertising can be an effective means of delivering messages for preventing drowsy driving, given that it is exposed at locations and times where vehicle traffic occurs. This study investigated the influence of message framing of drowsy driving prevention OOH advertising and regulatory focus on the intention to drowsy driving prevention behaviors by an experimental study targeting 200 university students. The results showed an interaction effect between message framing and regulatory focus on the intention to drowsy driving prevention behaviors. While no significant differences were observed in the intention to drowsy driving prevention behaviors based on regulatory focus for positively framed messages, for negatively framed messages, a higher intention was observed when the prevention focus group rather than promotion focus group. This study focuses on two key areas: how messages are crafted (message framing) and the characteristics of the people who receive them (regulatory focus). By exploring these aspects, it provides valuable theoretical and practical knowledge. Essentially, it opens doors for creating message strategies that are finely tailored to suit the preferences of the audience. This advancement is vital for researchers and practitioners as it enhances the effectiveness of communication efforts.

Comparison of Current GCPs on the Basis of the Contents in ICH-GCP (ICH-GCP와 선진 각국의 GCP 비교)

  • 박혜연
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1997.11a
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    • pp.57-74
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    • 1997
  • To make a proposal for the revision of KGCP, ICH Harmonized Tripartite Guideline for Good Clinical Practice, which is on the stage of worldwide implementation, was compared with current GCPs of tripartite countries of ICH, namely USA, Europe and Japan as well as Korea. On the basis of the classification in ICH GCP, comprehensive comparisons among the corresponding articles of 4 regions or countries were made in the order of IRB / IEC, Investigator, Sponsor and Clinical Trial Protocol. Based on the comparisons of the contents in ICH-GCP with those in current GCPs, major suggestions for the revision of current KGCP can be made as follows. Firstly, the function of IRB / IEC needs to be strengthened for the initiation and continuation of clinical trial. Current 2-step approval system of IRB / IEC and Health Authorities requires to be converted into the system similar to that of developed countries. Secondly, sponsor's obligation needs to be tightened to control and assure the quality of clinical trial. Inspection of regulatory authorities should be made to perform during and / or after clinical trial, when it is necessary. In other words, sponsor should be made to establish written Standard Operating Procedures (SOPs) for all aspects of clinical trial including monitoring to ensure that trials are conducted and data are generated, documented, and reported in compliance with the protocol, GCP, and the applicable regulatory requirement (s). Besides, the provision of ‘Quality Control and Quality Assurance’ should be added to the protocol to establish the credibility of the result of the clinical trial.

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Regulatory Mechanism of Spindle Movements during Oocyte Meiotic Division

  • Ai, Jun-Shu;Li, Mo;Schatten, Heide;Sun, Qing-Yuan
    • Asian-Australasian Journal of Animal Sciences
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    • v.22 no.11
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    • pp.1477-1486
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    • 2009
  • Female germ cell meiotic divisions are typically asymmetric, giving rise to two daughter cells with different sizes. Spindle movements including spindle migration from the oocyte center to the cortex and spindle rotation from parallel to perpendicular (typically in the mouse) at the cortex are crucial for these asymmetric divisions and therefore are crucial for gamete production. Different regulatory mechanisms for spindle movements have been determined in different species and a wide variety of different molecular components and processes that are involved in spindle movements have also been identified in different species. Here, we review the current state of knowledge as well as our understanding of mechanisms for spindle movements in different systems with focus on three main aspects: microtubules (MT), microfilaments (MF) and molecules associated with cytoskeletal organization as well as molecules that are not directly related to the cytoskeleton. How they might interact or function independently during female meiotic divisions in different species is discussed in detail.

The Recommended Approaches and Recent Trends in Reproductive and Developmental Toxicology (생식 · 발생독성시험의 방법적 고찰과 최신 연구 동향)

  • Kwack, Seung-Jun;Cho, Dae-Hyun
    • Toxicological Research
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    • v.21 no.4
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    • pp.271-278
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    • 2005
  • Reproductive and developmental toxicology is concerned with various physical or chemical agents interfering with fertility in both gender or normal growth of offsprings. Reproductive and developmental toxicology is rather a complex science, with many fields, i.e., various endpoints are involved and many different mechanisms of action. For that reason, diverse aspects must be considered when attempting to assess possible adverse health effects in the area of reproductive and developmental toxicology. The thalidomide tragedy made it clear to regulatory authorities around the world that systematic, comprehensive evaluation of the reproductive cycle was needed to adequately evaluate the potential of medicinal drugs to impair the process of reproduction or the development of embryos, fetuses, and children. International Conference on Harmonization of Technical Requirements for the Registration of Pharmaceuticals for Human Use (ICH) and U.S. Food and Drug Administration (FDA) developed a guideline to assess the reproductive and developmental toxicity. Also these guidelines have since been applied to the detection and regulation of environmental toxicants, food additives, and so on. Although it was hoped that testing procedures of guideline would be updated constantly to reflect the current state of the science in reproductive and developmental toxicology, it was not until this decade that regulatory guidelines and testing methods have been altered in a significant way. In this paper, we would like to present the recommended approaches and recent trends for improvement of testing guidelines or experimental methods in reproductive and developmental toxicology.

Regulatory Factors in Shaping New Towns of Malaysia (말레이시아 신도시 주거단지 계획에 영향을 미치는 법률적 요소)

  • Lee, Lina;Ju, Seo Ryeung
    • Journal of the Korean housing association
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    • v.25 no.4
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    • pp.1-9
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    • 2014
  • The post-war period has witnessed the emergence of new towns in a number of countries in Southeast Asia. New town development started in Malaysia with Petaling Jaya as a satellite town in 1953 to accommodate the rapid growing population of Kuala Lumpur. New towns have been designed in accordance with the British town planning principles, based on the modern ideal city. Nonetheless, they have constituted a regional character as they have incorporated local factors such as local technologies as well as site and climatic conditions. In the shaping of the new towns in modern cities, regulatory aspects have played important roles. The regulations decide the basic framework for planning of new town, block plan and unit plan. The ultimate goal of this study is to understand the identity of the new town planning of Malaysia. As a first step, we reviewed the local regulations, standards, and design guidelines which are applicable to the new town planning from the national land use to local plans. As a result, we categorized the guidelines into four areas: urban space, site plan, street system, block plan and unit plan. We expect this study to provide the framework of the Malaysia's new town planning from the perspective of the local regulations.

Immune modulation and possible pathological implications mediated by naturally produced immunoglobulin G idiotypes: from historical to recent experimental and clinical studies focused on atopic dermatitis

  • Lucas Santander;Nicolle Rakanidis Machado;Beatriz Oliveira Fagundes;Jefferson Russo Victor
    • Clinical and Experimental Vaccine Research
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    • v.13 no.1
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    • pp.1-9
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    • 2024
  • Since the 1950s decade, it has been suggested that a naturally produced or induced repertoire of immunoglobulin G (IgG) idiotypes may exert some immunoregulatory functions. In the last decades, some more advanced theories have suggested that the repertoire of IgG idiotypes may influence the development or control of some atopic diseases. In atopic dermatitis (AD), some evidence indicated that the IgG repertoire obtained from these patients could effectively mediate regulatory functions on thymic and peripheral CD4+ and CD8+ T cells. Furthermore, some recent clinical trials have corroborated the hypothesis that IgG from AD patients can exert regulatory functions in vivo. Here, we revised some historical aspects that yield current approaches developed in vitro and in vivo to elucidate a recently proposed theory termed "hooks without bait" that can strengthen the broad spectrum of research about evaluating different sets of IgG idiotypes and determine their immunological effects.

Trends in Cryptocurrency Custody Services and Evaluation Guidelines for DeFi Protocols' Custody Poten (가상자산 커스터디 서비스의 최신 동향 및 DeFi 프로토콜 커스터디 가능성 평가 가이드라인 제시)

  • Hyunggeun Lee;Moonho Joo;Jihun Lim;Beomjoong Kim;Kiseok Jeon;Junsik Sim;Junghee Lee
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.34 no.4
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    • pp.811-831
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    • 2024
  • This paper has two main objectives. The primary objective is to conduct a comprehensive review of existing survey papers on the advantages, disadvantages, taxonomy, and technical vulnerabilities of cryptocurrency custody services. Additionally, we examined recent regulatory developments, the application of existing frameworks, conditions for performing custody services, and service providers' obligations. The secondary objective is to identify DeFi protocols in the regulatory 'grey area' and analyze their technical aspects and governance mechanisms. By synthesizing these findings, we propose guidelines for assessing DeFi decentralization and their potential for integration within the regulatory framework, providing insights for industry experts, regulators, and policymakers to balance industry needs with societal benefits.