• Title/Summary/Keyword: review standard

Search Result 1,876, Processing Time 0.024 seconds

Paradigm Shift in Intra-Arterial Mechanical Thrombectomy for Acute Ischemic Stroke : A Review of Randomized Controlled Trials after 2015

  • Sheen, Jae Jon;Kim, Young Woo
    • Journal of Korean Neurosurgical Society
    • /
    • v.63 no.4
    • /
    • pp.427-432
    • /
    • 2020
  • Three randomized control trials (RCTs), published in 2013, investigated efficacy of mechanical thrombectomy in large vessel occlusions and did not show better results compared to intravenous (IV) recombinant tissue-type plasminogen activator (tPA) alone. However, most clinicians treating stroke consider mechanical thrombectomy as the standard treatment rather than using IV tPA alone. This paradigm shift was based on five RCTs investigating efficacy of mechanical thrombectomy in acute ischemic stroke conducted from 2010 to 2015. They demonstrated that mechanical thrombectomy was effective and safe in acute ischemic stroke with anterior circulation occlusion when performed within 6 hours of stroke onset. There are four reasons underlying the different results observed between the trials conducted in 2013 and 2015. First, the three RCTs of 2013 used low-efficiency thrombectomy devices. Second, the three RCTs used insufficient image selection criteria. Third, following the initial presentation at the hospital, reperfusion treatment required a long time. Fourth, the three RCTs showed a low rate of successful recanalization. Time is the most important factor in the treatment of acute ischemic stroke. However, current trends utilize advanced imaging techniques, such as diffusion-weighted imaging and multi-channel computer tomographic perfusion, to facilitate the detection of core infarction, penumbra, and collateral flows. These efforts demonstrate that patient selection may overcome the barriers of time in specific cases.

Redesigning Camera's Boss and Gear using by CAE (카메라 보스 및 기어의 CAE를 이용한 재설계)

  • 오상환;김왕도;정종교
    • CDE review
    • /
    • v.4 no.3
    • /
    • pp.26-31
    • /
    • 1998
  • Recent trend of popularity of CAE(Computer Aided Engineering) tools and its availability, partly contributed by significant price reduction of H/W and SW, makes us believe CAE has already established terra firma as de jure tools, enablint the design improvement in the manufacturing am. However, if your jobs are required to be working closely with engineers located in the front line of manufacturing site, CAE is observed far from popularity, still being regarded as exclusive tools for engineers holding advanced degrees. Conventional methodologies depending on knowledge that was accumulated thorough trial and errors, depending primarily on engineering tables and formulas or proprietary know-how, are preferred as the de factor standard under the roof of contemporary development shops. Samsung camera, having stared its business since early 、80, has accumulated enough technological strength to compete in the world market. As today's consumers demand more sophisticated featured-lighter weight, built-in multi zoom and miniature size fitting in the palm-from camera manufacturer, so should Samsung camera respond to ever-delicate consumer's needs with great flexibility. Consequently conventional designers, without sophisticated analytical tools, with encounter solving the critical design factors that have never been treated as seriousness-marginal safety factors induced by reduced size of parts. In the study, CAE results of boss and gears were demonstrated as examples, which confirms the facts that the simple analysis done by front line designers, can bring distinguishable effects on the potential improvements of design and on the consequential influences on the future design process-simulation before actual tooling and productions.

  • PDF

Examination Criteria on the Compliance of Multimodal Transport Document in the ISBP (ISBP상의 복합운송서류의 일치성에 관한 심사기준)

  • Jeon, Soon-Hwan
    • International Commerce and Information Review
    • /
    • v.7 no.4
    • /
    • pp.219-243
    • /
    • 2005
  • The Purpose of this Article is to analyze the examination criteria on the compliance of multimodal transport document in the ISBP. When the goods are taken in charge by the multimodal transport operator, he shall issue a multimodal transport document which, at the option of the consignor, shall be in either negotiable or non-negotiable form. The multimodal transport document shall be signed by the multimodal transport operator or by a person having authority from him. When the multimodal transport document is presented by the beneficiary to the bank in the letter of credit operations, the bank should examinate the bill of exchange and/or shipping documents, including multimodal transport document. There are two rules in connection with examination of the documents in the letter of credit operations. One is the "Uniform Customs and Practice for Documentary Credits(UCP 500)" approved by the Banking Commission in March 10, 1993, the other is the "International Standard Banking Practice for the Examination of Documents under Documentary Letters of Credits(ISBP)" approved by the ICC Banking Commission in October 2002. Therefore, this Article has studied the multimodal transport document presented under documentary credits on the basis of the UCP 500 and the ISBP it reflects.

  • PDF

A Comparative Legal Study on the Electronic Transactions Act in Thailand (태국의 전자거래법에 대한 비교법적 고찰 - 전문 및 일반규정을 중심으로 -)

  • Shim, Chong-Seok;Oh, Hyon-Sok
    • International Commerce and Information Review
    • /
    • v.12 no.4
    • /
    • pp.405-427
    • /
    • 2010
  • This legal study is to compare the Electronic Transactions Act in Thailand(hereinafter 'ETA') with mainly other countries electronic transactions acts, such as UNCITRAL MLEC, UECIC, VETA, UCITA and Korea' Electronic Transactions Act The ETA is consisted of 6 chapters which included preamble and definitions. Each chapter's main point as follows. Preamble is related to the name, time of legal effect, scope and definitions. Chapter 1 is not only general principles of electronic transactions, required restriction in addition to specify the limit of application, documentation, evidential weight in reference to the data message, but also the conditions of offer and acceptance through data message, time and place of dispatch and receipt of data message, certification between origination and addressee. According to media-neutrality and the effectiveness security requirement of data message under the information system, legal certification is related to the exchange's declaration of intention, define about origination-addressee of data message. Chapter 2 is composed to provide expressly about the effectiveness security in electronic signature. Those contents are to compare the MLEC, UECIC and Electronic Transactions Act in Korea. Chapter 3 is related to legal definitions that present legal requirement about service relating electronic transaction which contents accept domestic law, the adequate requirement as eligibility, satisfied matter, self-reliance ratio of finance and other detail standard Chapter 4 is deal with the transaction which are public sector and those application requirements. And also this chapter are composed regulations about direct-indirect purpose of Thailand domestic electronic government.

  • PDF

A Study on the Fixing the Place of Arbitration in Arbitration Agreement (중재합의시 중재지 결정에 관한 연구)

  • Oh, Won-Suk;Seo, Kyung
    • International Commerce and Information Review
    • /
    • v.12 no.4
    • /
    • pp.429-453
    • /
    • 2010
  • The purpose of this paper is to examine the significances of choosing the place of arbitration, the principles of fixing the place, which the major international arbitration institutions(including the ICC, LCIA, AAA, CIETAC and so on) have in their arbitration rules, and the methods of drafting the place of arbitration in arbitration agreements. When the contract parties have agreed on the place of the arbitration, the institutions have no role regarding the selection of the place of arbitration. But the parties have not agreed on the place of arbitration, it is fixed by the rules of selected institution, by considering the lists of criteria including local laws, N.Y. Convention, neutrality, convenience and so on. This author suggested four alternatives on how to designate the place of arbitration, and advantages and disadvantages of each one: the place of claimant, the place of respondent, the place agreed on in advance in Bilateral Agreement between two Arbitration Institutions established in two countries or the third country. In conclusion, the decision of all elements in the international contract is greatly influenced by the power of negotiation, and the place of arbitration in arbitration agreement has a lot of influential significances on both parties when resolving the disputes. So it is advisable for the parties to fix the place according to the global standard(the place of respondent), the arbitration rules of major international arbitration institutes and the result of the negotiation between parties.

  • PDF

A Study on Acceptance of CDM/UCR in WCO as e-Customs clearance procedures (WCO의 CDM과 UCR을 수용한 전자통관시스템 발전 방안)

  • Ryu, Geun-Woo;Kim, Young-Chun
    • International Commerce and Information Review
    • /
    • v.9 no.2
    • /
    • pp.327-350
    • /
    • 2007
  • A single window platform must be successfully established by implementing CDM/UCR in WCO and UNeDocs in UN/CEFACT, which is part of the framework of standards for secure and facilitate global trade. Core success factors in single window platform for international trade depend on political innovative capacity, advanced leadership of high ranking officials and departments in charge, effective collaborations between the ministries and offices concerned which are supported by supreme executives, self-controlled coordinations between users, convenience and access availability to users, promotion and marketing, identification on predictive impediments, financial raising and revenue model payable, communication's strategy, valid legal basis etc. To settle a stable ubiquitous e-trade platform, firstly, procedures and practices of customs clearance which different from one another mutually must be standardized globally. Secondly, the international standard electronic data exchanges must be introduced to facilitate and simplify customs clearing procedures by holding administrative informations in common between public institutions. thirdly, cooperative work model must be accepted with enhancing outsourcing business between reference groups (export-import firms and IT service providers).

  • PDF

Development of Dementia Care Standards (치매 간호 표준 개발)

  • Ha, Ju-Young
    • Journal of Korean Academy of Nursing
    • /
    • v.40 no.5
    • /
    • pp.631-641
    • /
    • 2010
  • Purpose: This study was done to develop standards for dementia care as a baseline for professional nurses to provide a framework for dementia care evaluation Methods: The dementia care standards were developed through a literature review and focus group discussions. According to the Delphi method, the data analysis was conducted using the Content Validity Index (CVI). Results: The final set of 18 standards on dementia care was developed through one round of CVI. The standards included four structural standards: 'Organization of nursing system', 'Operating system', 'Management of human resources', 'Management of material resources', 13 procedural standards: 'Advanced assessment', 'Nursing diagnosis', 'Nursing plam', 'Advanced nursing implementation', 'Evaluation', 'Education', 'Research', 'Consultation', 'Counseling and cooperation', 'Development of specialty', 'Utilizing resources', 'Nursing quality assurance', 'Ethics', and one standard concerning outcome ('Evaluation of nursing tasks in care of patients with dementia'). The final set of 55 criteria on care of patients with dementia was confirmed through two rounds of CVI. The final 171 indicators were confirmed through four rounds of CVI. Conclusion: These dementia care standards provides a framework that allows registered nurses to clarify their roles and tasks in the care of patients with dementia and provides evaluation criteria.

Variation Determinants in Building Construction: Ghanaian Professionals Perspective

  • Asamaoh, Richard Oduro;Offei-Nyako, Kofi
    • Journal of Construction Engineering and Project Management
    • /
    • v.3 no.4
    • /
    • pp.20-25
    • /
    • 2013
  • Variation in construction means modification of design, changes in quality, quantity of work including the alteration of standard of materials or goods to be used in the work and the removal from site any kind of material not in accordance in the contract. In Ghana, Variation order has become major issue in the construction industry. This had resulted in cost overruns, delay and in some contracts dispute, between parties. The aim of this paper was to identify the root causes of variation; effects of variations on projects in Ghana and the means of reducing the impact of variation order. The method of the study involved literature review, primary data collection, interview and closed - ended- questionnaires. Mean Scores Method was used to rank the identified factors causing variation. Analysis Of Variance Test was use to test for the significant difference between means among the professional groups. The study revealed that most causes of variation were change of design by client and inadequate working details. Establishment of oversight project management committee and flow of information were identified as means of controlling variations during project administration.

실물옵션 모형을 이용한 RPS와 배출권거래제 연계의 신재생에너지 투자효과

  • Park, Ho-Jeong
    • Environmental and Resource Economics Review
    • /
    • v.21 no.2
    • /
    • pp.301-319
    • /
    • 2012
  • The primary purpose of Renewable Portfolio Standard (RPS) is to facilitate investment in renewable energy technology. Since emission trading program has similar purpose, it is conceivable to attempt to link RPS and emission trading program through interlinked markets. RPS in Korea with single REC and emission allowance markets has particular advantages for constructing linkages between two markets. This paper provides a real option model to examine investment effects of linkage of RPS to the trading program. Emission permit price and REC price are assumed to follow stochastic processes and renewable investment is irreversible. The result shows that linked market provides further incentive for renewable investment by raising managerial flexibility for power companies.

  • PDF

Prospect of Family Day-care with regard to the National Policy of Child-rearing Support (육아지원정책에 따른 가정보육시설의 운영방향)

  • Han You-Me
    • The Korean Journal of Community Living Science
    • /
    • v.17 no.1
    • /
    • pp.23-37
    • /
    • 2006
  • As the fertility rate of Korea has recently decreased to the lowest level in the world, the recognition of the needs for social support for the child-care has been increased. This resulted in the announcement of National Policy of Child-Rearing Support in 2004. This study attempted to propose the activation of the family child-care for the preparation of the introduction of the National Policy of Child-Rearing Support. Using literature review and interview, the following research questions were addressed. Firstly, the actual situation of the family child-care was compared with that of the other types of child-care. Secondly, the policies of child-rearing support and the family child-care systems in other countries such as United Kingdom, Sweden and Japan were introduced. Finally, activations of the family child-care were discussed in terms of the introduction of the National Policy of Child-Rearing Support. The results of this study implies that the family child-care in Korea is different from that of other countries as well as other types of child-care in Korea. Also, it suggests that key factors of the activation of the family child-care in Korea are to identify as the small, informal and family-like child-care, to differentiate as the infant-care and non-standard time child-care from other types of child-care, and to increase the level of professionalization. In conclusion, family child-care should become an alternative for the low fertility problem.

  • PDF