• Title/Summary/Keyword: Essential Concepts

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Fast MRI in Acute Ischemic Stroke: Applications of MRI Acceleration Techniques for MR-Based Comprehensive Stroke Imaging

  • You, Sung-Hye;Kim, Byungjun;Kim, Bo Kyu;Park, Sang Eun
    • Investigative Magnetic Resonance Imaging
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    • v.25 no.2
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    • pp.81-92
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    • 2021
  • The role of neuroimaging in patients with acute ischemic stroke has been gradually increasing. The ultimate goal of stroke imaging is to make a streamlined imaging workflow for safe and efficient treatment based on optimized patient selection. In the era of multimodal comprehensive imaging in strokes, imaging based on computed tomography (CT) has been preferred for use in acute ischemic stroke, because, despite the unique strengths of magnetic resonance imaging (MRI), MRI has a longer scan duration than does CT-based imaging. However, recent improvements, such as multicoil technology and novel MRI acceleration techniques, including parallel imaging, simultaneous multi-section imaging, and compressed sensing, highlight the potential of comprehensive MR-based imaging for strokes. In this review, we discuss the role of stroke imaging in acute ischemic stroke management, as well as the strengths and limitations of MR-based imaging. Given these concepts, we review the current MR acceleration techniques that could be applied to stroke imaging and provide an overview of the previous research on each essential sequence: diffusion-weighted imaging, gradient-echo, fluid-attenuated inversion recovery, contrast-enhanced MR angiography, and MR perfusion imaging.

Current Status of Interprofessional Education-related Research within Korean Nursing Literature (전문직 간 교육에 대한 국내 간호연구 현황 분석)

  • Ahn, EunKyong
    • Journal of Industrial Convergence
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    • v.19 no.3
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    • pp.75-82
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    • 2021
  • This study was conducted to analyse interprofessional education(IPE)-related research within Korean nursing literature and suggest future directions for IPE research. For this, Five articles were included for final review. As a results, IPE in nursing research has received attention since 2017. Studies have confirmed that no clear definition of IPE concepts has been established in nursing education. Key findings regarding IPE were categorized into Awareness of IPE, Effects of IPE as an intervention and Validation of Korean version tools measuring effectiveness of IPE. The collaboration of nurses and other healthcare professionals is essential to providing quality healthcare. Therefore, considerable effort should be made to define the concept of IPE and activate research to effectively apply it to nursing education and practice in Korea.

Twelve Key Success Factors of Distribution Strategies for Distribution Community Enterprises Thailand

  • KANYARAT, Hassaro;PEERAWAT, Chailom
    • Journal of Distribution Science
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    • v.20 no.8
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    • pp.59-67
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    • 2022
  • Purpose: This study identifies how twelve key success factors of distribution strategies for community enterprises in Thailand achieve higher performances. Research design, data, and methodology: The samples in this study were 400 entrepreneurs throughout the country. The instrument for data elicitation was a questionnaire. The descriptive and inferential statistics for data analysis were percentage, mean, standard deviation, T-Test, F-Test, multiple regression, and multiple correlations. Results: The results revealed that, overall, the samples showed high opinions on online distribution strategies in all aspects. In detail, the three highest factors were as follows: 1) electronic satisfaction, 2) product characteristics and electronic trust, and 3) the quality and success in online distribution. In detail, the three highest aspects of online distribution success were customer loyalty, financial performance, and work management, respectively. The online distribution strategies influencing community enterprises' success were electronic trust, electronic loyalty, social information, electronic satisfaction, and online distribution tools, which had a statistical significance of 71. Conclusions: This research has made an essential contribution to community enterprise entrepreneurs should focus on and adopt these 8P+4ODS concepts to increase sales, maintain brand loyalty of existing customers, get new customers, develop learning, and improve the working potentials of community enterprise entrepreneurs.

An Exploration of a Performer's Organic Action

  • BongHee, Son
    • International Journal of Advanced Culture Technology
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    • v.10 no.4
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    • pp.383-388
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    • 2022
  • This thesis explores the principle of a performer's organic action by means of his/her bodily responses on stage. This research has been developed to define the nature of a performer's central task in order to constitute empirical understanding of acting and the purpose of training in addressing the question of what sort of qualitative bodily training is necessary to be in a state of the full body involvement. This study investigates to articulate a performer's fundamental task at the most rudimentary level by utilizing those theatre artists' concepts with practical assumptions. In particular, the key terms, happen and change signifies the quality of a performer's body that has to fit into the given environment in which the performer's body can be subordinated through the moment on stage. Here, we argue that a performer's essential task parallel to make the following moment to happen and change by means of progressing a set of the next moment. In this manner, we also argue that a moment of displaying the performer's conscious effort, forceful and externalizing the visible elements under the use of erroneous language leads his/her body not to function on stage, a state of disengagement from his/her body. Finally, we provide a way to facilitate a performer's organic action by focused on his/her lived experience to create the functional moment which is opposite to the predominance of a representation, maintaining the performer's intellectual sense.

Virtual Machine Placement Methods using Metaheuristic Algorithms in a Cloud Environment - A Comprehensive Review

  • Alsadie, Deafallah
    • International Journal of Computer Science & Network Security
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    • v.22 no.4
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    • pp.147-158
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    • 2022
  • Cloud Computing offers flexible, on demand, ubiquitous resources for cloud users. Cloud users are provided computing resources in a virtualized environment. In order to meet the growing demands for computing resources, data centres contain a large number of physical machines accommodating multiple virtual machines. However, cloud data centres cannot utilize their computing resources to their total capacity. Several policies have been proposed for improving energy proficiency and computing resource utilization in cloud data centres. Virtual machine placement is an effective method involving efficient mapping of virtual machines to physical machines. However, the availability of many physical machines accommodating multiple virtual machines in a data centre has made the virtual machine placement problem a non deterministic polynomial time hard (NP hard) problem. Metaheuristic algorithms have been widely used to solve the NP hard problems of multiple and conflicting objectives, such as the virtual machine placement problem. In this context, we presented essential concepts regarding virtual machine placement and objective functions for optimizing different parameters. This paper provides a taxonomy of metaheuristic algorithms for the virtual machine placement method. It is followed by a review of prominent research of virtual machine placement methods using meta heuristic algorithms and comparing them. Finally, this paper provides a conclusion and future research directions in virtual machine placement of cloud computing.

The Current Concepts in Treatment of Fracture-Dislocations of the Finger (수지 골절-탈구 치료의 최신 지견)

  • Kang, Ho Jung;Kim, Ji Sup
    • Journal of the Korean Orthopaedic Association
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    • v.55 no.6
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    • pp.457-471
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    • 2020
  • Fingers are body parts with a complex structure and essential functions that are the most prone to trauma. The principle of treatment for finger fractures is to determine the balance between obtaining stable fracture fixation and early joint movement. Despite proper treatment, there are many cases of functional and cosmetic problems caused by stiffness or deformation as complications. This review article introduces the latest knowledge in the treatment of finger fractures focusing on fractures and dislocations around the interphalangeal joints, including joint surface damage, which is difficult to treat and leads to poor results. This article consists of fracture cases and describes the methods and solutions to address these complications.

Safety in Mass Gathering: Basic Survey for Crowd Crush (군중집회 시의 안전: 군중압박의 기초 조사)

  • Soon-Joo Wang
    • Journal of Korean Society of Disaster and Security
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    • v.16 no.1
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    • pp.49-60
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    • 2023
  • After the 10.29 Itaewon disaster, interests in the crowd crush injury increased, but it is pointed out that the academic and practical basis related to crowd crush is still weak in Korea. Therefore, in this study, terms and concepts related to crowd crush were investigated and proposed, and representative cases of crowd crush events were investigated and summarized. Approaches based on representative cases were investigated, and among them, video analysis, simulation, questionnaire survey and interview methods were derived as an essential approach methods. Through this research, it is expected that standardization of Korean terminology, concept establishment, evaluation, and systematization of approach methods of crowd crush can be accomplished.

Characteristics of female sublimity represented on Korean fashion designers' works (한국 패션디자이너 작품에 나타난 여성적 숭고의 특성)

  • Jeong Sook, Ji;Yhe-Young, Lee
    • The Research Journal of the Costume Culture
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    • v.30 no.6
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    • pp.898-918
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    • 2022
  • Contemporary fashion research has paid increasing attention to the sublimity in the context of postmodernism. Sublimity is considered essential in contemporary fashion design as it arouses complex emotions which verbal expression cannot describe. Therefore, contemporary fashion designs need to be interpreted in terms of the sublimity. Through a detailed review of literature, the present study discusses Kantian and Lyotardian sublimity as main theories representing conventional and cotemporary concepts of sublimity. This paper selected five Korean fashion designers who won the prize of Samsung Design Fund from 2006 to 2019 and actively introduce their works every year. Images were collected to analyze their designs introduced from 2018 S/S to 2019F/W at their website. In addition, formative and color characteristics were analyzed to identify the changing features of s sublimity. Major findings of analyses are as follows. First, all designers' collections reflected both male and female sublimity with the respect to its formative characteristics. Color characteristics of sublimity indicated that Jeong, Wook Jun's collections represented features of male sublimity and other designers works showed elements of female sublimity. Essentially, the typical contemporary concept of the sublimity was found in the designs of Seo, Hye In. Consequently, female sublimity is more inclusive than male sublimity, while being opened to otherness.

Transformable eco-friendly one-touch DIY children's furniture for childr en's growth and development

  • JEON, Jin-Soo;KIM, Hyun-Joo;Han, Sul-A
    • Archives of design research
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    • v.25 no.5
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    • pp.113-119
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    • 2012
  • Under the paradigm of 'Eco', the core of sustainability management, this study aims to establish both domestic and international markets and secure competitiveness in the global markets through the development of children's furniture composed of recycled and unharmful materials. Currently, in Europe and in the Western regions, the concepts of 'eco-friendly', 'children', and 'DIY' are well-placed in the daily lives of the people. On the other hand, compared to the domestic demand for eco-friendly children's furniture, the essential approach and the qualitative improvements about the subject are being slowly progressed. Particularly, the process of applying eco-friendly materials and finishing materials to the children's furnitures are mostly in a non-existent state. Thus, in this study, simple application of basic eco-friendly materials such as natural woods or imitation of overseas furniture designs were avoided to create transformable eco-friendly one-touch DIY children's furniture for children's growth and development through the application of eco-friendly processes of technology, design, and other stages of the development process. In other words, under the big category of eco-friendly children's furniture, the furniture was developed through an environmentally-friendly process of universal design that is suitable for children of all ages, and thus, ultimately maximizing the economical effective value and reducing consumption of resources and environmental pollutions.

Effective simulation-based optimization algorithm for the aircraft runway scheduling problem

  • Wided, Ali;Fatima, Bouakkaz
    • Advances in aircraft and spacecraft science
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    • v.9 no.4
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    • pp.335-347
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    • 2022
  • Airport operations are well-known as a bottleneck in the air traffic system, putting growing pressure on the world's busiest airports to schedule arrivals and departures as efficiently as possible. Effective planning and control are essential for increasing airport efficiency and reducing aircraft delays. Many algorithms for controlling the arrival/departure queuing area are handled, considering it as first in first out queues, where any available aircraft can take off regardless of its relative sequence with other aircraft. In the suggested system, this problem was compared to the problem of scheduling n tasks (plane takeoffs and landings) on a multiple machine (runways). The proposed technique decreases delays (via efficient runway allocation or allowing aircraft to be expedited to reach a scheduled time) to enhance runway capacity and decrease delays. The aircraft scheduling problem entails arranging aircraft on available runways and scheduling their landings and departures while considering any operational constraints. The topic of this work is the scheduling of aircraft landings and takeoffs on multiple runways. Each aircraft's takeoff and landing schedules have time windows, as well as minimum separation intervals between landings and takeoffs. We present and evaluate a variety of comprehensive concepts and solutions for scheduling aircraft arrival and departure times, intending to reduce delays relative to scheduled times. When compared to First Come First Serve scheduling algorithm, the suggested strategy is usually successful in reducing the average waiting time and average tardiness while optimizing runway use.