• Title/Summary/Keyword: individual research

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Complete Simultaneous Analysis of Uranium Isotopes in NUSIMEP-7 Microparticles Using SEM-TIMS

  • Park, Jong-Ho;Jeong, Kahee
    • Mass Spectrometry Letters
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    • v.7 no.3
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    • pp.64-68
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    • 2016
  • Scanning electron microscopy combined with thermal ionization mass spectrometry (SEM-TIMS) was used to determine the precise isotope ratios of ultra-trace levels of uranium contained in individual microparticles. An advanced multiple ion counter system consisting of three secondary ion multipliers and two compact discrete dynodes was used for complete simultaneous ion detection. For verification purposes, using TIMS with complete simultaneous measurement, isotopes were analyzed in 5 pg of uranium of a certified reference material. A microprobe in the SEM was used to transfer individual particles from a NUSIMEP-7 sample to TIMS filaments, which were then subjected to SEM-TIMS and complete simultaneous measurement. The excellent agreement in the resulting uranium isotope ratios with the certified NUSIMEP-7 values shows the validity of SEM-TIMS with complete simultaneous measurement for the analysis of uranium isotopes in individual particles. Further experimental study required for investigation of simultaneous measurement using the advanced multiple ion counter system is presented.

Meta-analysis in dental research (치의학 분야에서의 메타 분석)

  • Lim, Hoi-Jeong
    • The Journal of the Korean dental association
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    • v.52 no.8
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    • pp.478-490
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    • 2014
  • Recently, importance of meta-analysis is increasing in the field of dentistry, since it is not easy to settle controversies arising from conflicting studies. Meta-analysis is the statistical method of combining results from two or more individual studies that have been done on the same topic. Merits of meta-analysis include an increase in power, an improvement in precision, and the ability to address solution not provided by individual studies. However, it might mislead researchers when variation across studies and publication bias are not carefully taken into consideration. The purpose of this study is to help understand meta-analysis by making use of individual results in dental research paper.

Magnetization Behavior of Co Nanodot Array

  • Chang, Joon-Yeon;Gribkov, B.A.;Kim, Hyung-Jun;Koo, Hyun-Cheol;Han, Suk-Hee;Mironov, V.L.;Fraerman, A.A.
    • Journal of Magnetics
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    • v.12 no.1
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    • pp.17-20
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    • 2007
  • We performed magnetic force microscopy (MFM) observation on array of Co dots in order to understand magnetic state and magnetization behavior of submicron sized Co dots patterned on GaMnAs bridge. MFM observations showed the magnetization reversal and processes of local magnetization of individual ferromagnetic Co nanodots. Magnetic state of Co dots either single domain or vortex is dependent on geometrical size and thickness. Transition from single domain to vortex state can be realized with MFM tip assisted local field. Magnetization reversal process takes place through sequential reversal of individual dots. Localized inhomogeneous magnetic field can be manipulated by controlling magnetic state of individual Co dot in the array structure.

The Relationship between Flight Crew's Individual Cultural Values and Crew Resource Management(CRM) Performance: Psychological Safety as a Moderator (민간항공조종사의 개인문화가치와 CRM수행의 관계 : 심리적 안전감의 조절효과)

  • Lee, Dongsik;Kim, Sinae;Sohn, Young Woo
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.25 no.4
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    • pp.1-23
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    • 2017
  • Organizational culture among flight crews has a profound impact on the individual attitude and behavior of member flight crews, and active training is conducted focusing on improving flight crews' Crew Resource Management(CRM) performance. However, adequate research and training on the relationships between flight crew's individual culture and CRM performance have not been conducted. Hence, this study examined the effect of individual cultural values on CRM performance and the moderation effect of psychological safety, with captains and first officers working for commercial airlines as participants. For the factors related to individual cultural value scale, power distance had no significant effect on CRM performance, uncertainty avoidance had a significant negative effect, and individualism had a significant positive effect. With regard to the moderation effect of psychological safety on the relationships between individual cultural values and CRM performance, a significant interaction was found between power distance and CRM performance, but not between uncertainty avoidance and CRM performance, or between individualism and CRM performance. Power distance and CRM performance exhibited a strong negative correlation in case of low psychological safety. Compared to existing research measuring the cultural characteristics of pilot groups on a national or organizational culture level, this study is uniquely valuable in that it also covers the relationship between individual cultural values of commercial airline flight crews and CRM performance.

A Study on Service Strategies of Individual Presidential Archives (우리나라 개별대통령기록관 서비스 방안 연구)

  • Lee, Sejeong;Kim, Youseung
    • Journal of Korean Society of Archives and Records Management
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    • v.21 no.4
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    • pp.223-242
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    • 2021
  • This study aims to find complex service plans for individual presidential archives. It analyzes previous studies dealing with the justification, cases, and services of individual presidential archives. The characteristics, functions, and service aspects of individual presidential archives are theoretically discussed. As a case study, the services of individual presidential archives in the United States are analyzed, and the study finds the complex nature of the services. Furthermore, interviews with archival experts are conducted on the subject of the current status of the presidential archives, experience in use, and improvement measures to discuss the problems and limitations of the current integrated presidential archives services and diagnose the prospects of individual presidential archives. In conclusion, it proposes the individual presidential archives service strategies in four areas, namely, information service, research support service, exhibition service, and outreach service.

Credit Management Method to Improve Credit Rating (신용등급 향상을 위한 신용관리 방법)

  • Lee, Sangwon;Kwon, Young Chul
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2013.07a
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    • pp.319-320
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    • 2013
  • In these days, an individual is evaluated by his or her credit. So, it is very critical for an individual to know his or her credit rating and then to try to improve the credit rating. But, there are few services to analyze credit status for an individual and inform the person of the credit. In fact, it could be impossible to let a person know how to improve his or her credit rating. Against this backdrop, we research on a credit management model to analyze credit status of an individual rapidly and propose individual-customized method to improve the credit rating. We set up the model and design it in detail. This servie would certainly make it convenient for an individual to retrieve credit rating and improve it.

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A case study on individual level based-organizational behavior textbooks published in Korea and USA (한국과 미국에서 발행된 개인수준 중심의 조직행동론 교과서에 대한 사례연구)

  • Lee, Won Haeng
    • Journal of Industrial Convergence
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    • v.14 no.1
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    • pp.1-13
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    • 2016
  • I have done a case study on individual level based-organizational behavior textbooks published in Korea and USA. The objects are 'organizational behavior' by Su Yong Jung and 'organizational behavior' by Im Chang Hee in Korea, and 'organizational behavior' by Schermerhorn, Osborn, Uhl-Bien, & Hunt and 'organizational behavior' by Robbins, & Judge. The goal of this study is to identify the differences of the perspectives on the individual level based-organizational behavior between Korean and American textbooks. This research finding shows that it is valid to classify organizational behavior into such categories as individual differences, attitude, emotion & stress, perception & learning, and motivation in the Korean textbooks for the better future study.

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Determinants of the Digital Divide using Hierarchical Generalized Linear Model (위계선형모형을 이용한 개인의 정보화 격차 결정요인)

  • Kim, Mi-Young;Choe, Young-Chan
    • Journal of Korean Society of Rural Planning
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    • v.14 no.3
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    • pp.63-73
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    • 2008
  • The purpose of this study is to analyze the determinants of the digital divide at individual level and regional level in Korea, considering interaction between individual and the regional variables. Following results are obtained. First, individual level digital devide in the 16 different regions has been found in terms of Internet use, implying the needs for further analysis on impact of the regional factor in individual Internet use. Second, the result finds the impact of level-l individual variables, "gender, age, education, income and jobs" on digital divide, significantly at level 10% level. Third, the regional variables influencing the individual digital divide were not found at state level. However, regional factors might affect digital devide at county level. Study suggest some plans to reduce digital divide. First, the digital devide at individual level should be remedied by focusing on neglected class of people. Second, we need to approach the digital divide by analyzing in more detail, reflecting interactions of the regional variables and individual variables. Third, we should come up with a policy for mending the digital divide at regional level.

The Impact of Emotional Intelligence on Performance: A Closer Look at Individual and Environmental Factors

  • NGUYEN, Khai The;DUONG, Tuyet Minh;TRAN, Nhi Yen;HA, Anh Thao;PHUNG, Y. Nhu Thi
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.1
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    • pp.183-193
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    • 2020
  • This study presents a more comprehensive approach to investigate how Emotional Intelligence (EI) is associated with performance. Previous research has revealed that EI is related to positive outcomes such as better performance, life satisfaction and career success. However, in most research of EI, this factor has been investigated independently from the effect of contextual factors and other individual characteristics. This study extended the research on the impact of EI on student performance by simultaneously examining the impact of EI, individual factors - (1) Perseverance of Effort, (2) Goal Consistency and (3) Goal Clarity and learning environment factors - Program Fit in one study. The results based on the data collected from 1,117 students in Vietnam largely support the hypothesis that that EI was an important but not the only factor affecting the student performance. MANOVA and post-hoc analysis indicated that both individual and environmental factors better predicted performance than EI could. These results suggest that the impact of EI on individual performance is more complicated than what we have already known. Future study is encouraged to investigate both the mechanism through which EI impact individual performance and the interaction between EI and other factors that moderate the EI - performance relationship.

The Impact of Operating Cash Flow in Decision-Making of Individual Investors in Vietnam's Stock Market

  • NGUYEN, Dung Duc;NGUYEN, Cong Van
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.5
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    • pp.19-29
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    • 2020
  • The paper examines the impact of information about cash flow from operating activities of firms listed on Vietnam's stock market to the decision making of individual investors. Data were collected from interviews with 160 individual investors about their investment decisions based on information on profit growth and cash flow growth from operating activities. T-test was conducted to research on Vietnam's stock market - a market considered as information that is not really public, transparent and ineffective. The research results show that: (1) investors do not care about cash flow from operating activities when making investment decisions if the company's profits grow positively, (2) information about cash flow from operating activities only affects the decisions of individual investors once profit growth is negative, and (3) conflicting information between profit growth and cash flow growth from business activities significantly affects the confidence and comfort of investors in Vietnam's stock market when they make investment decisions. Then, the study points out the mistake of investors when making investment decisions, and offers recommendations to investors when making investment decisions, not only concerned with profit growth, but also paying special attention to cash flow growth, especially cash flow from the company's business operations.