• Title/Summary/Keyword: Measuring tools developed

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TRAPR: R Package for Statistical Analysis and Visualization of RNA-Seq Data

  • Lim, Jae Hyun;Lee, Soo Youn;Kim, Ju Han
    • Genomics & Informatics
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    • v.15 no.1
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    • pp.51-53
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    • 2017
  • High-throughput transcriptome sequencing, also known as RNA sequencing (RNA-Seq), is a standard technology for measuring gene expression with unprecedented accuracy. Numerous bioconductor packages have been developed for the statistical analysis of RNA-Seq data. However, these tools focus on specific aspects of the data analysis pipeline, and are difficult to appropriately integrate with one another due to their disparate data structures and processing methods. They also lack visualization methods to confirm the integrity of the data and the process. In this paper, we propose an R-based RNA-Seq analysis pipeline called TRAPR, an integrated tool that facilitates the statistical analysis and visualization of RNA-Seq expression data. TRAPR provides various functions for data management, the filtering of low-quality data, normalization, transformation, statistical analysis, data visualization, and result visualization that allow researchers to build customized analysis pipelines.

A Study on Cosmetic Purchasing Behavior according to Clothing Shopping Orientation of 20's females (20대 여성의 의복쇼핑성향에 따른 화장품구매행동)

  • 송혜인;이옥희;강영의
    • Journal of the Korean Society of Clothing and Textiles
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    • v.26 no.11
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    • pp.1593-1604
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    • 2002
  • The purpose of the study were to find how the trend had an effect on a buying motivation, a selecting standard, a frequency of use, a purchase place of cosmetics, makeup and the distinctive quality of social strata of regarding a clothing shopping orientation. The subjects of investigation were the women in twenties who live in Seoul and Chonnam province. This study had been done from May to July 2001, and 660 questionnaires were used for analysis. The measuring tools used were the items of matters of preceding studies and developed ones by researchers on which questionnaires were prepared. Factor and cluster analysis and Duncan's multiple range test, ANOVA, x$^2$-test, frequency, and percentage as analysis methods were used through SPSS. The results of the study were as follows. The clothing shopping orientation divided five shopping orientations such as ostentatious style, enjoyable style, economical style, and prudent style, and an attachment style for special brands and shops. On the basis of this result, the groups 20's females were classified into low groups by the cluster analysis; economical shopping group, indifferent shopping group, conspicuous shopping group, and recreational shopping group. In the case of cosmetics purchasing motives, evaluation criteria of cosmetics, stores selection criteria were found according to shopping orientation subdivision, and there was the significant difference between the groups in frequency of use, a purchase place of cosmetics.

Design of a composite diagnostic DC test apparatus for high voltage power cable (고압전력케이블 현장진단시험용 종합 직류시험설비의 검토)

  • Ryoo, Hee-Suk;Kang, Dong-Sik;Sim, Jong-Tae;Lee, Ho-Jin
    • Proceedings of the KIEE Conference
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    • 1999.07e
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    • pp.2326-2328
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    • 1999
  • Developments of effective and economic diagnostic apparatus for industrial plastic insulated high voltage power cables are in discontented condition still. Some report told that DC high voltage was damaged plastic insulation of a partially aged power cable to lead breakdown easily. But now, we have no alternative tools of DC diagnostic apparatus, and we try to reduce a possibility of hazard DC diagnosis. DC diagnostic apparatus still have many advantages to field cable engineer like low price, portability easy applications and sufficient data. Main hazard of DC diagnosis is excessive hight of applied voltage Recent developments for DC diagnosis use considerably low voltage. But new test methods need special measuring device and manipulator, like high input impedance voltmeter, low leakage current high voltage switches, etc. So that reason, new DC diagnostic devices are normally very expensive and have low efficiency, economically. We try to design a composite test device for 3$\sim$4 newly developed method, have economical benefit th industrial engineer.

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The Relationships among Resilience, Family Support, and Diabetes Adaptation in Children with Diabetes Mellitus (당뇨 환아의 극복력, 가족지지와 질병적응의 관련성)

  • Kim, Yongmi;Bang, Kyung-Sook
    • Perspectives in Nursing Science
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    • v.14 no.1
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    • pp.21-31
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    • 2017
  • Purpose: This study was conducted to identify the disease adaptation and related factors for the pediatric patients with diabetes mellitus. Methods: Participants in this study were 75 diabetic children or adolescent whose age were 10 to 18 years old visited the out-patient clinic in one general hospital located in Seoul. Data were collected using self-report questionnaires. Research tools measuring resilience, family support, psychological adaptation, Hemoglobin A1c (HbA1c) protein were used. Results: Resilience showed significant differences according to the age, gender, academic achievement, and hospitalization experience of the children. Family support was significantly different according to the age, religion, academic achievement, fathers' education level, and hospitalization experience of the children. Psychological adaptation to diabetes showed significant differences according to academic achievement. HbA1c was shown to be significant difference according to fathers' education level and hospitalization experience of the children. Positive correlations were identified among resilience, family support, and psychosocial adaptation, while negative correlations were found between HbA1c and all others including resilience, family support, and psychosocial adaptation. Conclusion: This study suggests that the educational programs as nursing intervention needs to be developed to enhance the resilience and family support for the pediatric diabetic patients.

A Measurement of Traffic Vehicles Flow by the Ultrasonic Spatial Filtering Method (교통난 계측 I-초음파용 공간필터법에 의하여-)

  • 전승환
    • Journal of the Korean Institute of Navigation
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    • v.20 no.2
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    • pp.51-58
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    • 1996
  • For the smooth flow of traffic vehicles and its effective management, it is necessary to have an exact information on traffic condition, i.e., the volume of traffic, velocity, occupancy and classification of vehicles. In particular, for classification of vehicles, there has been only image processing method using camera, where the method can obtain much information but rather expensive. In this paper, an algorithm for the measurement of velocity and total length of vehicles has been proposed to develop a general traffic management system, which is necessary to discriminate the class of vehicles. In order to realize the proposed algorithm, we have developed an ultrasonic spatial filtering method, which has better performance than that of using the traditional vehicle detector. To have this system to be constructed, we have introduced three sets of ultrasonic devices where each has one transmitter and two receivers which are arranged to obtain the spatial difference of objects. The velocity of vehicles can be measured by analyzing the occurrence time of pulses and their time differences. The total length of vehicles can be given by multiplying velocity with time interval of pulses sequence. To confirm the effectiveness of this measuring system, the experiment by the spatial filtering method using the ultrasonic sensors has been carried out. As the results, it is found that the proposed method can be used as one of measurement tools in the general traffic management system.

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Studies on Exploring Math. Disliking Factors and Devising Tools to Analyze Students' Disliking Trends about School Mathematics (수학 기피요인의 설정 및 기피성향의 분석도구 개발)

  • 김영국;박기양;박규홍;박혜숙;박윤범;유현주;권오한;이선아
    • The Mathematical Education
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    • v.40 no.2
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    • pp.217-239
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    • 2001
  • To lessen the ratio of under achievers is one of the most urgent task which recent school mathematics education is confronted with. To cope with this problem efficiently, math. teachers should know more specifically and concretely the causes that make the students dislike mathematics. But actually, there are too many reasons for these situations. So, in this paper, we tried to devise a tool to analyze and measure each student's math. disliking status. We proceeded this research via the following procedures. 1. Grasping the causes which make the students dislike mathematics as specifically as possible. To obtain this, we asked more than 300 of secondary school students to write down their thoughts about school mathematics. 2. Analyzing the responses, we abstracted 74 numbers of items which were supposed to be the causes for secondary school students'mathematics disliking. 3. With these items we made a test to measure students'aptitude for each item. 4. With this test paper, we tested over 800 of secondary school students. Through factor analysis and theoretical argument, we categorized the 74 items into 11 groups whose names were defined as factors of mathematics disliking. 5. For each of these 11 factors, we developed a norm which could serve as standard of comparison in measuring each student's mathematics disliking status. Using this tool teachers were able to describe each student's traits of mathematics disliking more specifically.

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Classifying Building Industry Clients and Investigating Their Attitude and Behavior - Supplement Research on Individual Clients - (국내 건축주 분류 및 유형별 태도·행동 조사 - 개인 건축주 대상 연구 보완 -)

  • Kim, Ju-Hyung;Yun, Sung-Myung;Lee, Soo-Yong
    • Journal of the Regional Association of Architectural Institute of Korea
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    • v.8 no.4
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    • pp.123-130
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    • 2006
  • This paper discusses issues faced by individual building industry clients. These form the majority of clients but, because they do not possess high purchasing power, they attract less attention in the industry. Given that key decisions on project definition and procurement strategy are made at the pre-project stage, the industry would benefit from knowing relevant aspects of its clients' attitudes and behaviors, so that it can support them. There is a lack of research on this subject, and so we first describe a theoretical framework and research methodology that were developed for this specific group of clients. Theory adopted from consumer behavioral research was introduced to develop a general behavioral model of individual clients. In this model, individual clients are assumed to seek and then process information after acknowledging normative activities. To validate our model, a field survey was conducted using randomly selected individual clients. Their opinions on the importance and difficulty of 12 normative activities were analysed to establish a general attitude. Information seeking behaviour was investigated by measuring the frequency and type of source that they contacted to conduct the normative activities. The attitudes and information seeking behaviour presented in this research will contribute to the development of project tools for supporting these clients.

Revalidation of Measuring Instrument Systems Thinking and Comparison of Systems Thinking between Science and General High School Students (과학 고등학교와 일반 고등학교 학생들을 대상으로 시스템 사고측정 도구의 타당도 검증 및 시스템 사고 비교)

  • Lee, Hyonyong;Lee, Hyundong
    • Journal of The Korean Association For Science Education
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    • v.33 no.6
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    • pp.1237-1247
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    • 2013
  • The purposes of this study are 1) to revalidate the developed Measuring Instrument Systems Thinking and 2) to compare systems thinking skills between gifted and non-gifted high school students. For the test, 116 gifted science students and 553 non-gifted students were sampled from high schools. Exploratory factor analysis and confirmatory factor analysis were performed and Independent t-test was performed using the average of the two groups. The finding of the exploratory factor analysis indicated 5 factors in the model with 4 items per single factor. The result of confirmatory factor analysis was generally appropriate and acceptable (5 factor model: ${\chi}^2/df$ : 2.765, TLI=.907, CFI=.929, IFI=.930, RMSEA=.044). The reliability for 20 items turned out to be high because the Cronbach's alphas were at .875 and .693~.751 per each factor. In addition, the result of t-test showed that systems thinking skills among gifted science students were significantly higher than non-gifted students. This study could be expanded to measuring systems thinking with qualitative research tools and to various school levels.

The Development of Instruments for the Measuring Science State Curiosity and Anxiety in Science Learning (과학 상태호기심 및 과학 상태불안 측정도구 개발)

  • Kang, Jihoon;Yoo, Pyoungkil;Kim, Jina
    • Journal of The Korean Association For Science Education
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    • v.40 no.5
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    • pp.485-502
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    • 2020
  • The purpose of this study was to develop an instrument for the measuring students' state curiosity and anxiety by dividing science learning context into three stages: when confronting scientific task, checking the results, learning science concepts, and verify the validity and reliability of the measurement tools developed. For this purpose, based on the theoretical background of various prior studies, science state curiosity and science state anxiety were defined in three stages of the learning context, and preliminary items were developed according to these definitions. The preliminary items were developed with the same number and the basic framework for each stage to identify changes in state curiosity and anxiety. Some preliminary items were refined during the confirming face validity and content validity. As a result of the exploratory and confirmatory factor analysis, the measurement tool consisted of five items of state curiosity and five items of state anxiety (two factors, ten items) at each stage, and confirmed the construct validity of the measurement tool. The Cronbach alpha was 0.8 or higher for each factor or for all items. This measurement tool is meaningful in that it can measure the state curiosity and anxiety applicable in three stages of science learning context and identify the changes.

Validity and Reliability of a Tool Measuring Long-Term Employment Factors among Dental Hygienists

  • Yang, Jeong-A;Lim, Soon-Ryun
    • Journal of dental hygiene science
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    • v.18 no.5
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    • pp.280-287
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    • 2018
  • Dental hygienists are important members of any dental clinic. They are recognized as reflecting the dental clinic's image because they spend a lot of time with patients. The longer the dental hygienist is employed, the better the relationship with the patients and the medical service provided. The purpose of the present study was to develop a scale to measure factors of long-term employment among dental hygienists. The basic questions were constructed by analyzing tools used to measure job embeddedness and satisfaction. Forty-one questions were developed that measured organizational fit (13), interpersonal relationships (8), job satisfaction (7), duty satisfaction (6), recognition (4), and self-esteem (3). A questionnaire survey was conducted, and the responses from 297 dental hygienists in dental clinics, after the exclusion of 20 incomplete surveys, were used for the exploratory and confirmatory factor analyses. As revealed by exploratory factor analysis, long-term employment intention was composed of 7 factors consisting of 29 items after the exclusion of 12. The subsequent confirmatory factor analysis revealed 4 factors ("organizational fit," "professional identity," "job connectivity," and "interpersonal relationship") consisting of 16 items, after the exclusion of 13. $Cronbach^{\prime}s\;{\alpha}$ were 0806, 0.836, 0.700, and 0.684 for the four factors. This study is meaningful in that it developed a long-term employment factor measurement tool that can be applied to domestic dental hygienists. Future studies will need to focus more on professional identity and job outcomes. The results of this study and future related ones could be used to improve dental hygienist's continuous service.