• Title/Summary/Keyword: Preliminary Validation

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A Novel Theory of Support in Social Media Discourse

  • Solomon, Bazil Stanley
    • Asia Pacific Journal of Corpus Research
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    • v.1 no.1
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    • pp.95-125
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    • 2020
  • This paper aims to inform people how to support each other on social media. It alludes to an architecture for social media discourse and proposes a novel theory of support in social media discourse. It makes a methodological contribution. It combines predominately artificial intelligence with corpus linguistics analysis. It is on a large-scale dataset of anonymised diabetes-related user's posts from the Facebook platform. Log-likelihood and precision measures help with validation. A multi-method approach with Discourse Analysis helps in understanding any potential patterns. People living with Diabetes are found to employ sophisticated high-frequency patterns of device-enabled categories of purpose and content. It is with, for example, linguistic forms of Advice with stance-taking and targets such as Diabetes amongst other interactional ways. There can be uncertainty and variation of effect displayed when sharing information for support. The implications of the new theory aim at healthcare communicators, corpus linguists and with preliminary work for AI support-bots. These bots may be programmed to utilise the language patterns to support people who need them automatically.

A study of development and validation of mentoring-function scale for college students (대학생을 위한 멘토링 기능 측정도구 개발 및 타당화 연구)

  • Park, Sung-Mi
    • Journal of Fisheries and Marine Sciences Education
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    • v.18 no.1
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    • pp.49-57
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    • 2006
  • The purpose of this study was to develop and validate of mentoring-function scale for college students. This research collected preliminary data from 219 college students' responses for item and scale quality analyses, and collected 289 college students' for item and scale quality analyses. Data were analyzed to obtain item quality, reliability, and validity analysis. The results of this study were as follows; The mentoring-function scale was defined by 4 factors. The 4 factors were 'psycho-soical', 'career-development', 'role-modeling', 'friendship'. Criterion-related validity evidence was obtained from the correlation analysis as the criterion measures.

A Preliminary Study for the Application of Cognitive Function Scale(ACFS) in Korean Setting (인지기능응용척도의 타당화를 위한 기초 연구)

  • Cho, Eun-Lae;Hwang, Hae-Ik
    • Korean Journal of Child Studies
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    • v.31 no.3
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    • pp.235-254
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    • 2010
  • The purpose of this study was to examine the feasibility and validity of the Application of Cognitive Function Scale as developed by Lidz and Jepsen (1997). Data were collected from 4 to 5-years-old children. The analysis for item adequacy indicated that the passing rate increases according to age. Futhermore the analysis for test adequacy indicated that internal consistency reliability was .85 in the pre-test and .80 of post-test in terms of the cognitive function scale, and .90 of pre-test and .93 in the post-test in relation to the behavior observation scale. In conclusion, our analysis of the ACFS shows sufficiently high scores in terms of both validity and reliability, so as to indicate that this test is an appropriate way to measure the cognitive function and non-intellective function of young Korean children.

Universal Theory for Planar Deformations of an Isotropic Sandwich Beam (등방성 샌드위치 빔의 평면 변형을 위한 통합 이론)

  • Lee, Chang-Yong
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.19 no.7
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    • pp.35-40
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    • 2020
  • This work is concerned with various planar deformations of an isotropic sandwich beam, which generally consists of three layers: two stiff skin layers and one soft core layer. When one layer of the sandwich beam is modeled as a beam, the variational-asymptotic method is rigorously used to construct a zeroth-order beam model, which is similar to a generalized Timoshenko beam model capable of capturing the transverse shear deformations but still carries out the zeroth-order approximation. To analyze the planar sandwich beam, the sum of the energies of the two skin layers and one core layer is then formulated with different material and geometric properties and represented by a universal beam model in terms of the core-layer kinematics through interface displacement and stress continuity conditions. As a preliminary validation, two extreme examples are presented to demonstrate the capability and accuracy of this present approach.

Development and Validation Study of a Cell Phone Addiction Scale for Korean Children (아동용 휴대전화 중독 도구 개발 및 타당화 연구)

  • Koo, Hyun-Young;Yoo, Myung-Sook
    • Child Health Nursing Research
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    • v.18 no.2
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    • pp.76-84
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    • 2012
  • Purpose: This study was done to develop a cell phone addiction scale for Korean children. Methods: The process included construction of a conceptual framework, generation of initial items, verification of content validity, selection of secondary items, preliminary study, and extraction of final items. The participants were 268 children from grades 4 to 6 in two urban elementary schools. Construct validity, internal consistence reliability, and split-half reliability were used to analyze the data. Results: Nine items were categorized into 2 factors explaining 61.29% of total variance. The factors were labeled as obsessive compulsion (6 items) and dependency (3 items). Cronbach's alpha coefficient for the 9 items was .87, and Spearman-Brown coefficient was .83. Scale scores identified children as high risk users, at risk users, or average users by standard scores. Conclusion: The above findings indicate that the cell phone addiction scale for children has good validity and reliability when used with Korean children.

A Preliminary Study on the Validation of the K-ABC Mental Processing Test for Korean Preschoolers (Kaufman지능검사의 타당화를 위한 예비연구)

  • Kim, am Lee;Goak, Hea Kyung;Jang, Mi Ja;Han, Yoo Mi
    • Korean Journal of Child Studies
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    • v.16 no.2
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    • pp.81-95
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    • 1995
  • The purpose of this study was to examine the feasibility of validating the Kaufman Assessment Battery for Children(K-ABC) with Korean preschoolers. Subjects were 197 preschoolers of 3,4 and 5 years of age. The mean of the MPC(Mental Processing Composite) scores was 111.7 and SD was 12.26. According to the item discriminant method, most subtests of Sequential Processing and the triangle subtest of Simultaneous Processing were significant, but the other subtests were insignificant. All subtests were highly correlated with MPC, and both the Sequential Processing Scale and Simultaneous Processing Scale were highly correlated with MPC; but the correlation between the two scales was low. Internal consistency was satisfactory on both scales(Cronbach' ${\alpha}$=.76 -.86). A further study is needed to diminish cultural discriminants and to include more samples from diverse subject groups.

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Development of an Inventory for Adolescent's Image about their Father (청소년이 지각하는 아버지 상(像) 척도 개발 연구)

  • Cho, Seon-Hwa;Choi, Myung-Seon
    • Korean Journal of Child Studies
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    • v.25 no.6
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    • pp.53-68
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    • 2004
  • The purpose of this study was to develop an instrument for adolescent's image about their father. The preliminary survey was performed for 318 adolescents in Seoul. It was a free-writing style survey for adolescent's image, feeling, and thoughts about their father. The main survey which included 121 contents were performed for 400 students in Seoul and finally 75 contents were selected by the results of factor analysis and contents validation. The contents were categorized into 10 sub-variables based on previous studies. 10 sub-variables are Father of mature character, Father who do love me, Father who is devoted to his parents, Father as a friend, Father as a counsellor, Father who is very domestic, Father who is exhausted with work, Father who is hard to be familiar for me, Father with financial competence, Father responsible for supporting the family. This study showed construct validity and concurrent evidence because the correlation among the sub-variables and total score were high.

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Tiny Magnetic Robot Mechanism and Manipulation for Stent Transportation and Installation

  • Yu, Chang-Ho;Kim, Sung Hoon
    • Journal of Magnetics
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    • v.22 no.1
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    • pp.162-167
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    • 2017
  • Magnetic spiral-type microrobots, which are driven by a rotating magnetic field, have excellent locomotive abilities, whereas their medical applications are limited in the terms of function, such as the ability to drill in blood vessels. In this study, we propose a new robot with superior applications using a magnetic spiral-type machine. The proposed robot can be applied to stent transportation and installation without a catheter. In particular, the robot can be applied to the cardiovascular system, cerebrovascular disease, and nonvascular stent applications depending on the robot size. The robot consists of two independent spiral-type machines and four magnets in total. We controlled directions of thrust force of the two machines, respectively, for active locomotion with a task. We conducted a preliminary validation of the proposed robot for stent transportation and installation through experimental analyses.

Flow Analysis and Performance Evaluation of a Ventilation Axial-Flow Fan Depending on the Position of Motor (환기용 축류송풍기의 유동해석 및 모터 위치에 따른 성능 특성 연구)

  • Kim, Jae-Woo;Kim, Jin-Hyuk;Kim, Kwang-Yong
    • The KSFM Journal of Fluid Machinery
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    • v.13 no.4
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    • pp.25-30
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    • 2010
  • Flow analysis and performa nce evaluation have been performed for a ventilation axial-flow fan with different positions of the motor. Two different positions of motor have been tested; one is in front of the impeller and the other is behind the impeller. Flow analyses are performed by solving three-dimensional Reynolds-averaged Navier-Stokes equations through a finite-volume solver. Preliminary numerical calculations are carried out to test the performances of different turbulence models, i.e., SST model, k-$\omega$ model, and k-$\varepsilon$ model with and without using empirical wall function in the flow analysis. The validation of numerical analyses has been performed in comparison with the experimental data. The numerical results for the performance characteristics of the ventilation axial-flow fan with two different positions of the motor have been presented.

Utilizations of GOES-9 Data in METRI/KMA: Sea Surface Temperature, Atmospheric Motion Vector

  • Chung, Chu-Yong;Sohn, Eun-Ha;Ahn, Myoung-Hwan;Park, Hye-Sook
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.331-333
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    • 2003
  • KMA successfully began to receive and utilize the GOES-9 GVAR data since May 22nd 2003 when GOES-9 replaced the long-lived GMS-5 for Western Pacific and East Asian region until operation of MTSAT-1R in 2004. To take advantage of improvements of the GOES-9 data over the GMS-5 data, such as the increase of the temporal and spat ial resolution and addition of 3.9${\mu}$m channel, we have improved several algorithms to derive the meteorological products. Here we show two examples of algorithms, sea surface temperature and atmospheric motion vector, and preliminary results of validation of the improved algorithm.

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