• Title/Summary/Keyword: Related Studies

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A Development of Cognitive Assessment Tool based on Brain-Computer Interface for Accident Prevention (안전사고 예방을 위한 Brain-Computer Interface 기반 인지평가 도구 개발)

  • Lee, Chung-Ki;Yoo, Sun-Kook
    • Journal of the Korea Safety Management & Science
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    • v.14 no.1
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    • pp.1-6
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    • 2012
  • A number of Brain-Computer Interface (BCI) studies have been performed to assess the cognitive status through EEG signal. However, there are a few studies trying to prevent user from unexpected safety-accident in BCI study. The EEGs were collected from 19 subjects who participated in two experiments (rest & event-related potential measurement). There was significant difference in EEG changes of both spontaneous and event-related potential. Beta power and P300 latency may be useful as a biomarker for prevention of response to safety-accident.

Prophetic Medicine-Nigella Sativa (Black Cumin Seeds) - Potential Herb for COVID-19?

  • Maideen, Naina Mohamed Pakkir
    • Journal of Pharmacopuncture
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    • v.23 no.2
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    • pp.62-70
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    • 2020
  • Coronavirus disease-19 (COVID-19) is caused by the severe acute respiratory syndrome coronavirus 2 (SARS CoV-2). Currently, the management of patients with COVID-19 depends mainly on repurposed drugs which include chloroquine, hydroxychloroquine, lopinavir/ritonavir, ribavirin, remdesivir, favipiravir, umifenovir, interferon-α, interferon-β and others. In this review, the potential of Nigella sativa (black cumin seeds) to treat the patients with COVID-19 analyzed, as it has shown to possess antiviral, antioxidant, anti-inflammatory, anticoagulant, immunomodulatory, bronchodilatory, antihistaminic, antitussive, antipyretic and analgesic activities. Medline/PubMed Central/PubMed, Google Scholar, Science Direct, Directory of open access journals (DOAJ) and reference lists were searched to identify articles associated with antiviral and other properties of N.sativa related to the signs and symptoms of COVID-19. Various randomized controlled trials, pilot studies, case reports and in vitro and in vivo studies confirmed that N.sativa has antiviral, antioxidant, anti-inflammatory, immunomodulatory, bronchodilatory, antihistaminic, antitussive activities related to causative oraganism and signs and symptoms of COVID-19. N. sativa could be used as an adjuvant therapy along with repurposed conventional drugs to manage the patients with COVID-19.

The relationships between children's attachment to mother, anger and emotional.behavioral problems (아동의 모 애착 및 분노와 정서.행동문제간의 관계)

  • Chun, Eun-Chung;Lee, Jin-Suk
    • Journal of Families and Better Life
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    • v.28 no.6
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    • pp.157-167
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    • 2010
  • This study examined the relationships among children's attachment to the mother, trait anger, anger expression style, and emotional-behavioral problems in children. The subjects were 384 5th and 6th graders at elementary schools in J and G cities of Jeonbuk-Do. The instruments were Revised Inventory of Parent and Peer Attachment (IPPA-R), Stat-Trait Anger Expression Inventory - Korean version (STAXI-K), and Strength and Difficulty Questionnaire (SDQ). The major results are as follows; The level of children's attachment to the mother was negatively related to anger and emotional-behavioral problems, and the level of trait anger was positively related to emotional-behavioral problems. Children who have high anger expression and anger suppression tended to show more externalized behavior problems. Finally, the regression analysis showed that children's attachment to the mother and anger are revealed as significant factors in emotional-behavioral problems.

Exploring Study Designs for Evaluation of Interventions Aimed to Reduce Occupational Diseases and Injuries

  • van der Molen, Henk F.;Stocks, Susan J.;Frings-Dresen, Monique H.W.
    • Safety and Health at Work
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    • v.7 no.1
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    • pp.83-85
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    • 2016
  • Effective interventions to reduce work-related exposures are available for many types of work-related diseases or injuries. However, knowledge of the impact of these interventions on injury or disease outcomes is scarce due to practical and methodological reasons. Study designs are considered for the evaluation of occupational health interventions on occupational disease or injury. Latency and frequency of occurrence of the health outcomes are two important features when designing an evaluation study with occupational disease or occupational injury as an outcome measure. Controlled evaluation studies-giving strong indications for an intervention effect-seem more suitable for more frequently occurring injuries or diseases. Uncontrolled evaluation time or case series studies are an option for evaluating less frequently occurring injuries or diseases. Interrupted time series offer alternatives to experimental randomized controlled trials to give an insight into the effectiveness of preventive actions in the work setting to decision and policy makers.

Anthropogenic Gadolinium (Gd) Inputs into the Ocean: Review and Future Direction (인위적 기원 가돌리늄(gadolinium)의 해양 유입 연구 동향 및 향후 연구 방향)

  • Kim, Intae
    • Ocean and Polar Research
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    • v.43 no.3
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    • pp.165-178
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    • 2021
  • Gadolinium (Gd), one of a rare earth element (REE), has been widely used worldwide since the 1980s, as a resource material for contrast agents injected into examiners of magnetic resonance imaging (MRI) test. The organic complexed form of Gd shows an extremely stable behavior in natural environment (water), so is known that the artificial Gd from medical uses is not removed from the waste water treatment plant (WWTP) and eventually introduced into the ocean through the estuary. Since the 1990s, some previous studies have often been conducted on Gd anomalies in natural water and their effects an artificial origin from land or metropolitan areas, but little research has been potential impacts on the ocean water. In this paper, we review and introduce recent studies related to Gd anomaly in natural water and related marine effects, and also propose the future research directions.

Informational and Methodological Approach to Ensuring the Economic Security of the State in the Banking Sphere

  • Shemayeva, Luidmila;Hladkykh, Dmytro;Mihus, Iryna;Onofriichuk, Andrii;Onofriichuk, Vitalii
    • International Journal of Computer Science & Network Security
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    • v.21 no.12spc
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    • pp.477-482
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    • 2021
  • The existing approaches to ensuring the banking security of the state do not take into account the peculiarities of the banking system in the rapid development of the information economy (increasing uncertainty, imbalance and nonlinearity of processes in the banking system under the influence of innovation, institutions, information asymmetry, etc.). A methodological approach to determining the synergetic effect in the implementation of the regulatory influence of the state on the development of innovation processes related to informatization in the banking system, based on the use of differential equations and modelling the sensitivity of innovation processes related to informatization in the banking system, to the regulatory influence of the state to prevent the deployment of risks and threats to economic security of the state in this area has been suggested in the present article.

An Online Opinion Analysis on Refugee Acceptance Using Topic Modeling

  • Choi, Sook;Jang, Si Yeon
    • Asian Journal for Public Opinion Research
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    • v.7 no.3
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    • pp.169-198
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    • 2019
  • This study focused on the increase in refugee-related discourse in Korean society with the recent inflow of asylum seekers to Jeju Island. The purpose of our study was to understand the trends in public opinion concerning the acceptance of refugees by analyzing the content of refugee-related video commentary on YouTube. Topic modeling was conducted to analyze the main points, context, and ideas in the comments. The results indicated that the media mainly focus on the pros and cons of refugees, restricting the refugee issue to the problem of acceptance with a narrow focus on the case of Jeju Island. Refugee acceptance was treated as overwhelmingly unacceptable in the comments. We found that commenters often used negative discourse in the comments as a device for reproducing and amplifying hate speech.

Fuzzy Partitioning of Photovoltaic Solar Power Patterns

  • Munshi, Amr
    • International Journal of Computer Science & Network Security
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    • v.22 no.5
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    • pp.5-10
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    • 2022
  • Photovoltaic systems provide a reliable green energy solution. The sustainability and low-maintenance of Photovoltaic systems motivate the integration of Photovoltaic systems into the electrical grid and further contribute to a greener environment, as the system does not cause any pollution or emissions. Developing methodologies based on machine learning techniques to assist in reducing the burden of studies related to integrating Photovoltaic systems into the electric grid are of interest. This research aims to develop a methodology based on a unsupervised machine learning algorithm that can reduce the burden of extensive studies and simulations related to the integration of Photovoltaic systems into the electrical grid.

Exploring Factors and Elements of Coordination between Key Account Management Units and Non-key Account Management Units: Case Study in an IT-related Machinery and System Vendor

  • Tonai, Shoko
    • Asia Marketing Journal
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    • v.18 no.1
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    • pp.1-22
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    • 2016
  • Studies in key account management (KAM) have identified the importance of cross-functional coordination in firms to effectively implement KAM. However, these studies have ignored how companies integrate KAM and other customer management (non-KAM). This paper explores coordination design between KAM units and non-KAM units by analyzing a case study through three dimensions: front-end coordination, back-end-coordination, and organizational translation at the beginning of research. The case study shows that non-KAM conditions can require a modification of the coordination design. This research performs an in-depth analysis of changes in the implementation of sales reforms for an IT-related machinery and system vendor in Japan. Data sources include interviews with KAM units and non-KAM sales units and an analysis of secondary data. This paper suggests that studying the coordination between KAM units and non-KAM units will further our understanding of internal coordination in KAM research.

An Exploration of Learning Environmental Factors Affecting Student Cognitive Engagement: Implications for Instructional Design Research

  • LEE, Sunghye
    • Educational Technology International
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    • v.15 no.2
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    • pp.143-170
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    • 2014
  • As it was argued that students' cognitive engagement can be, at least in part, modified by individual or learning environmental factors, prior studies have attempted to identify the factors explaining the variability of students' cognitive engagement. This literature review has shown that students' cognitive engagement can be altered by various elements in the learning environment design such as factors related students' perceptions of teaching quality, characteristics of tasks and learning activities, teachers' behaviors during instruction, classroom goal structures, the integration of student oriented learning, action learning, problem-based learning, and constructivist learning, and academic disciplines. Based on the review, this study suggests that more studies are required to focus on understandings how the integration of instructional design principles into courses and the levels of student cognitive engagement in these courses are related. Also, an investigation of direct and indirect effect of learning environments taking into account students' personal factors would provide a more accurate picture of the relationship between learning environmental factors and students' cognitive engagement.