• Title/Summary/Keyword: Group testing

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Comparison of Differences in Levels per Group on Math Self-Regulated Learning Factors of High School Students (고등학생의 수학 자기조절 학습 요인에 대한 집단별 수준 차이 비교)

  • Yoo, Ki Jong
    • Journal for History of Mathematics
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    • v.34 no.1
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    • pp.21-37
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    • 2021
  • The purpose of the present study is to compare the differences in levels per group of high school students regarding the self-regulated learning factors for mathematics. For this purpose, a self-regulated learning measurement tool was developed and surveys were conducted. And the statistical analysis was completed using the frequency analysis, Kolmogorov-Smirnov normality test, Mann-Whitney U test and the Kruskal-Wallis H test. As a result, it is found that self-efficacy is of statistically significant differences in self-regulated learning levels regardless of the group classifications but test anxiety does not show statistically significant differences in self-regulated learning levels regardless of the group classifications.

Protective Effects Wonjiseokchangpo-san has on Brain Damage and Cognitive Dysfunction in Transient Focal Cerebral Ischemia (일시적 국소 뇌허혈 흰쥐모델에서 원지석창포산의 뇌손상 및 인지기능 보호효과)

  • Kang Mi Sun;Chang Gyu Tae;Kim Jang Hyun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.6
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    • pp.1777-1783
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    • 2004
  • This study was conducted to determine the effects Wonjiseokchangpo-san on brain damage in transient focal cerebral ischemia. Rats were used for testing in the following three models: Morris Water Maze, Eight-Arm Radial Maze, and Histochemistry. In the Morris Water Maze Model, the Wonjiseokchangpo-san group showed significant decrease in the 3rd and 6th training session compared with the ischemia group. A retention test, in the Morris Water Maze Model, was performed on the 7th day without the escape platform. The Wonjiseokchangpo-san group showed significant increase compared to the ischemia group. In the Eight-Arm radial Maze model, the Wonjiseokchangpo-san group showed significant decrease in the error rate compared to the ischemia group. In the density of hippocampal CA1 cell of the cresyl violet-stained section, the Wonjiseokahangpo-san group showed significant increase compared to the ischemia group. These results suggest that Wonjiseokchangpo-san may have a significant protective effect on brain damage and cognitive dysfunction in transient focal cerebral ischemia.

Protective Effects of Geupunggibodan on Brain Damage and Cognitive Dysfunction in Transient Focal Cerebral Ischemia in Rats (일시적 국소 뇌허혈 흰쥐모델에서 거풍지보단의 뇌손상 및 인지기능 보호효과)

  • Jung Sung-Wook;Chang Gyu-Tae;Kim Jang-Hyun
    • The Journal of Korean Medicine
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    • v.26 no.2 s.62
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    • pp.52-62
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    • 2005
  • Objectives: This study was conducted to determine the effects of Geupunggibodan on brain damage in transient focal cerebral ischemia in rats. Methods: Rats were used for testing in the following three models: Morris water maze, eight-ann radial maze, and histochemistry. Results: In the Morris water maze model, the Geupunggibodan group showed significant decrease in the 3rd, 4th and 6th training sessions compared with the ischemia, group. A retention test in the Morris water maze model was performed on the 7th day without the escape platform. The Geupunggibodan group showed significant increase compared to the ischemia group. In the eight-ann radial maze model, the Geupunggibodan group showed significant decrease in the error rate compared to the ischemia group. In the density of hippocampal CA1 cell of the cresyl violet-stained section, the Geupunggibodan group showed significant increase compared to the ischemia group. Conclusions: These results suggest that Geupunggibodan may have a significant protective effect on brain damage and cognitive dysfunction in transient focal cerebral ischemia.

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Influence of Nurse Manager and Peer Group Caring Behaviors as Perceived by Nurses on Intention to Retention (간호사가 지각하는 간호관리자의 돌봄-배려행위와 동료 간 돌봄-배려행위가 재직의도에 미치는 영향)

  • Kong, Moon Yeon;Kim, Jeong-Hee
    • Journal of Korean Academy of Nursing Administration
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    • v.23 no.2
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    • pp.191-200
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    • 2017
  • Purpose: This study was conducted to identify the influence of nurse manager and peer group caring behaviors as perceived by nurses on intention to retention. Methods: The participants for this study were 229 nurses who had worked for over 6 months in general hospitals located in J province. Survey data were analyzed descriptive statistics and t-tests, ANOVAs with $Scheff{\acute{e}}^{\prime}s$ post-hoc testing, Pearson's correlation coefficients, and hierarchical regression analysis. Results: The scores for 'manager and peer group caring behaviors' and intention to retention were all at a moderate level, although the subjects perceived 'peer group caring behaviors' as higher compared to 'manager caring behaviors'. There were significant differences in 'manager caring behaviors' scores by suitability for present working department and employment status and in 'peer group caring behaviors' scores by suitability for present working department. The factors influencing nurses' intention to retention were religion, suitability for present department, clinical experience of over ten years, 'manager caring behaviors', and 'peer group caring behaviors' Conclusion: To improve nurses' intention to retention, it may be necessary to alter the transfer and arrangement strategies of their working environments to better consider nurses' aptitude and competence, and thereby increase both manager and peer group caring behaviors.

The Effect of Practical Reasoning Instruction in Home Economics on the Critical Thinking - Focusing on Family Relations and Resource Management - (실천적 추론 가정과 수업이 비판적 사고력에 미치는 효과 검증 - 가족관계와 자원관리 단원을 중심으로 -)

  • 변현진;채정현
    • Journal of Korean Home Economics Education Association
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    • v.14 no.3
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    • pp.1-9
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    • 2002
  • The objectives of this study were to measure the effect of Practical Reasoning Instruction in Home Economics : specifically. its effect on developing of critical thinking as well as to evaluate the degree of the critical thinking process. with reference to its sub-factors and the level. The research subjects were consisted of the experimental group of 119 freshman class female students from the “A” High School and the comparative group of 110 freshman class female student from the “C” High School in the city of Chung-Ju. This research was conducted under the pre-post test control group design. administering the Pre-Post testing to both the experimental and the comparative groups. The experimental group was subjected to Practical Reasoning Instruction in Home Economics : whereas the comparative group was taught under the lecture-Instruction in Home Economics The research findings are as follows: 1. Those who studied Home Economics under the Practical reasoning method scored higher on the critical thinking Process than the comparative group students who were taught Home Economics in the lecture-style approach. 2. The experimental group of students. who studied Home Economics under the Practical reasoning method. scored higher than the comparative group in their ability to perceive assumption and to render Judgment among the five sub-factors of their critical thinking processes.

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COMPARATIVE STUDY ON THE POSITIONAL STABILITY OF REMOVABLE DIES USING SEVERAL DOWEL PIN SYSTEMS (수종의 dowel pin systems을 이용한 가철성 다이의 위치 안정성에 관한 비교 연구)

  • Jeong, Jae-Hyang;Jeong, Chang-Mo;Jeon, Young-Chan
    • The Journal of Korean Academy of Prosthodontics
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    • v.36 no.5
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    • pp.738-747
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    • 1998
  • The purpose of this study was to compare the positional stability of removable dies using several dowel pin systems. The removable dies were made by using five dowel pin systems: single dowel pin(Group I), single dowel pin and prepared groove on the die base(Group II), two-single dowel pin(Group III), two separate parallel dowel pins with plastic sleeves(Group IV), double straight dowel pins with metal sleeve(Group V). Special aluminum mold was made for specimens, and the dies of specimens removed and replaced thirty times with universal testing machine. Horizontal and vertical shift of dies was measured by Olympus monocular scanning tunneling microscope(STM5). The results were as follows: 1. The vertical shift was larger than the horizontal shift in all the other groups except Group I. 2. Single dowel pin system(Group I) was the most unstable of five dowel pin systems. 3. Double dowel pin systems with steeve(group IV, V) were the most stable of five dowel pin systems. 4. This study indicates that excellent horizontal positional stability is attainable with use of additional groove on the die base or double dowel pin. and excellent vertical positional stability is attainable with use of sleeve.

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Effects of a Family Approach Using Rein- forcement of Functional Communication In Families With a Schizophrenic Patient (가족치료가 정실분열증 환자의 상호작용 증진에 미치는 효과 분석 -의사소통 강화를 통한 가족치료-)

  • 최연자
    • Journal of Korean Academy of Nursing
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    • v.17 no.3
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    • pp.177-183
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    • 1987
  • This study investigated and evaluated a method effectively promote a communication function in families with a schizophrenic patient and the patients' interaction, by a family approach using reinforcement of functional communication between patients and their parents. The subjects of the study were patients receiving treatment in Won Gwang University Mental Hospital from July 1985 to July 1986, and their families. In the experimental group, a family approach using reinforcement of functional communication twice a week was taught. Each of the six sessions took sixty minutes, during which the interviews and questionaires were carried out. The total number of patients receiving treatment in the hospital at that time, 42, were divided by a systematic method into 20families in an experimental group and 22 in a control group. The results from testing the hypotheses established in this study, to analyse the effects of family approach through reinforcement of functional communication, are as follows; The results of the test of the first hypothesis are shown in Table 1. “patients and their parents in an experimental group receiving group training in reinforcement of functional communication will show a greater degree of interaction than those of the control group” was supported. Significant differences included Main Effects p<.001, Interactions p<.001 and Explained p<.001 in the interactions of patients, and mothers. Scores were higher for the experimental group after the treatment as well as higher than the control group.

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Population-based Cervical Cancer Screening Using High-risk HPV DNA Test and Liquid-based Cytology in Northern Thailand

  • Siriaunkgul, Sumalee;Settakorn, Jongkolnee;Sukpan, Kornkanok;Srisomboon, Jatupol;Suprasert, Prapaporn;Kasatpibal, Nongyao;Khunamornpong, Surapan
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.16
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    • pp.6837-6842
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    • 2014
  • Background: Northern Thailand is a region with a high cervical cancer incidence. Combined high-risk HPV (hrHPV) DNA testing and cytology (co-testing) has increasingly gained acceptance for cervical cancer screening. However, to our knowledge, data from a population-based screening using co-testing have not been available in this region. This study therefore aimed to evaluate the performance of cytology and hrHPV test in women in northern Thailand. Materials and Methods: Cervical samples were collected for hybrid capture 2 (HC2) testing and liquid-based cytology from women aged 30 to 60 years who were residents in 3 prefectures of Chiang Mai in northern Thailand between May and September 2011. Women with positive cytology were referred to colposcopy, while women with positive for HC2 only were followed for 2 years. Results: Of 2,752 women included in this study, 3.0% were positive in both tests, 4.1% for HC2 only, and 1.3% had positive cytology only. At baseline screening, positive HC2 was observed in 70.6% among cytology-positive women compared with 4.3% among cytology-negative women. The prevalence of positive HC2 or cytology peaked in the age group 35-39 years and was lowest in the age group 55-60 years. High-grade squamous intraepithelial lesion or worse lesions (HSIL+) were histologically detected in 23.5% of women with positive baseline cytology and in 9.8% of women with positive baseline HC2 only on follow-up. All women with histologic HSIL+ had positive baseline HC2. Conclusions: The hrHPV test is superior to cytology in the early detection of high-grade cervical epithelial lesions. In this study, the prevalence of histologic HSIL+ on follow-up of women with positive hrHPV test was rather high, and these women should be kept under careful surveillance. In northern Thailand, hrHPV testing has a potential to be used as a primary screening test for cervical cancer with cytology applied as a triage test.

A Classification and Extraction Method of Object Structure Patterns for Framework Hotspot Testing (프레임워크 가변부위 시험을 위한 객체 구조 패턴의 분류 및 추출 방법)

  • Kim, Jang-Rae;Jeon, Tae-Woong
    • Journal of KIISE:Software and Applications
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    • v.29 no.7
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    • pp.465-475
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    • 2002
  • An object-oriented framework supports efficient component-based software development by providing a flexible architecture that can be decomposed into easily modifiable and composable classes. Object-oriented frameworks require thorough testing as they are intended to be reused repeatedly In developing numerous applications. Furthermore, additional testing is needed each time the framework is modified and extended for reuse. To test a framework, it must be instantiated into a complete, executable system. It is, however, practically impossible to test a framework exhaustively against all kinds of framework instantiations, as possible systems into which a framework can be configured are infinitely diverse. If we can classify possible configurations of a framework into a finite number of groups so that all configurations of a group have the same structural or behavioral characteristics, we can effectively cover all significant test cases for the framework testing by choosing a representative configuration from each group. This paper proposes a systematic method of classifying object structures of a framework hotspot and extracting structural test patterns from them. This paper also presents how we can select an instance of object structure from each extracted test pattern for use in the frameworks hotspot testing. This method is useful for selection of optimal test cases and systematic construction of executable test target.

A STUDY ON THE SHEAR BOND STRENGTH OF THE COMPOSITE RESIN TO GLASS IONOMER CEMENT ACCORDING TO SURFACE TREATMENT METHODS OF GLASS IONOMER CEMENT (글라스 아이오노머 시멘트의 표면처리방법에 따른 복합레진과의 전단결합강도에 관한 연구)

  • No, Bong-Hwan;Hwang, Ho-Keel;Cho, Young-Gon
    • Restorative Dentistry and Endodontics
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    • v.20 no.1
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    • pp.362-371
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    • 1995
  • The purpose of this study was to evaluate the shear bond strength between composite resin and glass ionomer cement according to surface treatment methods of glass ionomer cement. Sixty round acrylic cylinders were fabricated. And then, a round undercut cavity(8 mm diameter, 2.5mm depth) was prepared in the center of the every acrylic cylinder. After all cavities were restored by using light-cured glass ionomer cement. A total of sixty acrylic cylinders restored with glass ionomer cement were divided into 4 groups according to surface treatment methods of glass ionomer cement. The surface treatment of each group were as follows : control group : no treatment Group 1 : acid etching Group 2 : sandblasting Group 3 : air-podwer abrasive polishing The composite resin was bonded to glass ionomer cement of each specimens. And the shear bond strength was tested with a universal testing machine at a cross-head speed of 1mm/min and 500kg in full scale. The results were as follows : 1. The sandblasting group(group 2) had the highest shear bond strength with $272.50{\pm}24.96\;kg/cm_2$ and the acid etching group(group 1) had the lowest shear bond strength with $192.89{\pm}29.32kg/cm_2$. 2. The no treated group(control group) had higher shear bond strength than acid etching group(group 1) (p<0.05). 3. The sandblasting group(group 2), air-powder abrasive polishing group(group 3) and no treated group(control group) had higher shear bond strength than the acid etching group(group 1) (p<0.05). 4. The sandblasting group(group 2) and air-powder abrasive polishing group(group 3) had higher shear bond strength than the no treatment group(control group), but there was not significant(p>0.05).

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