• Title/Summary/Keyword: preliminary test of significance

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The Activation and Export Strategies of Call Center Manager Certification Test (고객센터 관리자 인증제도의 활성화 및 수출 상품화 방안에 관한 연구)

  • Kim, Iljin;Cheong, Kiju;Li, Yan
    • Journal of Service Research and Studies
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    • v.5 no.2
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    • pp.161-176
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    • 2015
  • The significance of upgrading current certification service for customer center manager and counsellor in Korea Call Center Information Research Center-affiliated Call Center College is dramatically increasing due to steady applicants for the last few years, while there is a need to expand the numbers of applicants with a new channel. This paper has suggested the directions for developing IBT system to hold a dominant position in the certification business industry. Providing IBT channel, mainly base upon internet and utilizing various IT infra for the PCCM (Preliminary Customer Center Manager)/CCCM (Certified Customer Center Manager), will increase the convenience of taking qualification exams for customer center managers and improve competitiveness in qualification certification business industry. Specifically, this study reviews overview of industry trends of domestic and overseas, success cases of test services, service model and methods of on-line test, and short and long term analysis of the domestic and overseas markets.

Efficiency of the nickel-titanium rotary instruments for glide path preparation: in-vitro preliminary study (Glide path 형성용 니켈티타늄 회전 파일의 효율: in-vitro 예비 연구)

  • Kim, Hyeon-Cheol;Kwak, Sang Won;Ha, Jung-Hong
    • The Journal of the Korean dental association
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    • v.55 no.10
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    • pp.688-694
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    • 2017
  • Objectives: This preliminary study compared the effects of glide path establishing instruments prior to substantial root canal preparation. Materials and Methods: Glide path was established by enlargement of the 2nd mesiobuccal root canal of Dentalike by using three kinds of glide path preparation nickel-titanium file; PathFile, One G and ProGlider. The pre- and post-instrumented Dentalikes were weighed in the resolution of 1 / 10mg. In addition, after glide path preparation, torque generated during shaping using the WavoOne file was measured. The data were analyzed by one-way ANOVA and Tukey post-hoc test at a significance level of 95%. Results: The ProGlider had the significantly larger amount of reduced weight than other instrument groups (p < 0.05). There was no significant difference between group of glide path preparation with ProGlider and without glide path preparation in maximum torque and total stress generation during the shaping with WaveOne. Conclusions: Glide path preparation instruments may have different efficiency according to their geometries. The Dentalike artificial teeth were revealed to have discrepancies in the size of root canals by microCT examination. It is impossible to make a meaningful judgment of the results due to the reliability or resolution problem of the root canal size of the artificial tooth selected as the standardized tooth.

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Predictive Analyses for Activities of the Upper Extremity and Daily Living based on Impairment of the Upper Extremity in People with Stroke - Preliminary Study using Clinical Scales - (뇌졸중 환자의 위팔 손상 수준에 따른 위팔 활동과 일상생활 활동의 예측도 분석 - 임상적 평가를 이용한 예비 연구 -)

  • Jung, Young-Il;Woo, Young-Keun
    • PNF and Movement
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    • v.16 no.3
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    • pp.495-503
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    • 2018
  • Purpose: This study analyzes the predictive power of upper extremity activity and the activities of daily living in patients with stroke using an easy-to-use evaluation tool. Methods: The Fugl-Meyer assessment (FMA) of the upper extremity and action research arm test (ARAT) are performed, and the Korean modified Barthel index (K-MBI) is measured. The predictive power of the upper extremity activity level and the daily activity level are analyzed using regression analysis. The statistical significance level is 0.05. Results: The coefficient of determination, R2, for predicting the ARAT using FMA was high at 0.88, but the regression equation for predicting the K-MBI using the FMA and ARAT did not show a statistically significant difference. Conclusion: The assessment of the upper extremity should be performed at the activity level, as well as the impairment level. The assessment for predicting the activities of daily living should be carried out for each level of the international classification of functioning (ICF), disability, and health, which can be linked to daily life, in addition to the assessment of the upper arm. Future research should conduct more diverse analyses using the ICF assessment tools at various levels.

Efficacy of Red Ginseng Drinks as School Meals for Middle and High School (중·고등학교 학교급식에 제공되기 위한 홍삼 음료의 타당성 연구)

  • Choi, Jung-Hoon;Lee, Hyun-Chang;Kim, Chang-Man
    • Journal of Environmental Science International
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    • v.26 no.2
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    • pp.257-263
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    • 2017
  • The aim of this study was to evaluate the efficacy of red ginseng drinks as school meal drinks for 456 middle and high school students in Cheongdo-gun, North Gyeongsang Province. In preliminary studies, we focused on saponin with an efficacy of Rg 1 and Rg 2 in prepared red ginseng drinks. The health benefits and sensory characteristics were also investigated. For the frequency analysis, the satisfaction of the drinks as beverages serving as a school meal was relatively low, and the demand for fruit drinks was high. The result of sensory evaluations indicated a positive response of > 50.0% for the container packaging and design, daily intake, and tastes. Regarding the correlation analysis on red ginseng drinks, there were significant differences (p < 0.01) in the response to packaging (a daily intake) and design. In addition, health and learning benefits showed a very high correlation at the p < 0.01 significance level.

Development of test for Korean functional health literacy in dentistry (국내거주 외국인을 위한 한국형 치과정보 이해능력 평가도구의 개발)

  • Kim, Hyun-Kyung;Noh, Hie-Jin;Jung, Im-Hee;Chung, Won-Gyun;Lee, Yun;Mun, So-Jung;Jeon, Hyun-Sun;Han, Sun-Young;Choi, Eun-Hee;Ki, Jun-Sung;Koo, Min-Ji;Jeong, Ju-Hui
    • Journal of Korean society of Dental Hygiene
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    • v.16 no.3
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    • pp.355-362
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    • 2016
  • Objectives: This study aimed to develop a tool for assessing foreigners' understanding of oral health information in Korea called the Test of Korean Functional Health Literacy in Dentistry(TOKFHLiD) and examined validity and reliability of the tool. The TOKFHLiD consists of two literacy assessment parts: Dental Information Sentence(DIS) aims to assess one's literacy of sentences containing oral health information. Dental Information Document(DID) aims to assess one's numeracy and literacy of documents containing oral health information. Methods: Twenty eight preliminary questions were developed based on various medical care literature such as the agreement to diagnosis and treatment and the treatment precautions. DID using 14 preliminary questions was developed based on the appointment card, the treatment schedule, and labels on oral care products. The 42 preliminary questions in the DIS and the DID were subsequently put through four separate expert reviews, in which questions with content validity score of less than 0.8(13/15 points) were corrected and modified by five dental experts and then were corrected for language errors by two Korean language experts. The preliminary assessment tool was tested on 153 Koreans, and ${\chi}^2$ test was performed on the ratio of respondents who comprehended each question, the ratio of respondents who chose the correct answer for each question with a significance level of 0.05. Results: Of the 42 preliminary questions, 1 question in DIS and 1 question in DID, for which the ratio of Korean respondents who chose the correct answers did not exceed the acceptable level of 80%, were excluded and a final assessment tool was completed with 40 questions. Conclusions: Following the development and application of the tool, examination of the TOKHLiD for validity and reliability revealed that this assessment tool is adequate for assessing oral health information literacy of foreigners who are using oral hygiene medical services in Korea.

Effects of an Intensive Management Program for Diabetic Patients on a Blood Biochemical Profile and Diabetes Knowledge (당뇨병 환자 대상 집중관리프로그램이 혈액성상 및 당뇨지식에 미치는 효과)

  • Yeo, Su-Jeong;Kim, Bok-Hee
    • Korean Journal of Community Nutrition
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    • v.23 no.2
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    • pp.148-161
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    • 2018
  • Objectives: This study examined the effects of nutrition education and exercise therapies on the hematological status and diabetes knowledge of diabetic patients. For this purpose, a 12-week intensive management program was provided to diabetic patients participating in an exercise program in S health subcenter in Kwangju city and the effects were analyzed. Methods: The subjects were 26 diabetic patients, who provided written informed consent. As a preliminary survey, this study examined the general characteristics, physical status, obesity, blood pressure, hematological status, daily activity level, diabetes knowledge, diet performance, and barriers to diet therapy. After the 12-week intensive management program was completed, a post-test was conducted in the same way as the preliminary test. The data were analyzed with using SPSS 18.0. The data from this study are presented as the mean${\pm}$standard deviation. A paired t-test was conducted to compare differences in the means before and after the program. Statistical significance was set to p<0.05. Results: The results of the program are presented as follows. The HDL-cholesterol levels changed from $39.8{\pm}10.5mg/dL$ to $48.3{\pm}13.1mg/dL$, showing a significant increase (p<0.001). The blood sugar 2 hours after a meal changed from $175.2{\pm}67.1mg/dL$ to $140.5{\pm}42.5mg/dL$, showing a significant decrease (p=0.014). The glycosylated hemoglobin levels decreased significantly from $6.7{\pm}1.1%$ to $6.3{\pm}1.0%$ (p=0.010). The total scores of the daily activity levels increased significantly from $3.8{\pm}2.4$ to $4.8{\pm}2.5$ (p=0.040). The scores of knowledge on diabetes increased from $11.5{\pm}3.6$ to $14.0{\pm}3.8$ (p=0.001). The scores of knowledge on diet therapy changed from $6.7{\pm}2.2$ to $7.9{\pm}1.7$, showing a significant increase (p=0.027). Conclusions: The 12-week intensive management program intervened by nutrition education and exercise therapies induced positive changes to the HDL-cholesterol, blood sugar 2 hours after a meal, glycosylated hemoglobin, daily activity levels, and knowledge on diabetes.

A Study on Similar Trademark Search Model Using Convolutional Neural Networks (합성곱 신경망(Convolutional Neural Network)을 활용한 지능형 유사상표 검색 모형 개발)

  • Yoon, Jae-Woong;Lee, Suk-Jun;Song, Chil-Yong;Kim, Yeon-Sik;Jung, Mi-Young;Jeong, Sang-Il
    • Management & Information Systems Review
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    • v.38 no.3
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    • pp.55-80
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    • 2019
  • Recently, many companies improving their management performance by building a powerful brand value which is recognized for trademark rights. However, as growing up the size of online commerce market, the infringement of trademark rights is increasing. According to various studies and reports, cases of foreign and domestic companies infringing on their trademark rights are increased. As the manpower and the cost required for the protection of trademark are enormous, small and medium enterprises(SMEs) could not conduct preliminary investigations to protect their trademark rights. Besides, due to the trademark image search service does not exist, many domestic companies have a problem that investigating huge amounts of trademarks manually when conducting preliminary investigations to protect their rights of trademark. Therefore, we develop an intelligent similar trademark search model to reduce the manpower and cost for preliminary investigation. To measure the performance of the model which is developed in this study, test data selected by intellectual property experts was used, and the performance of ResNet V1 101 was the highest. The significance of this study is as follows. The experimental results empirically demonstrate that the image classification algorithm shows high performance not only object recognition but also image retrieval. Since the model that developed in this study was learned through actual trademark image data, it is expected that it can be applied in the real industrial environment.

The Effects of SBD-1 on Hangover Syndrome : a Randomized Double-blind Crossover Preliminary Study (신선불취단(神仙不醉丹) 가감방(加減方)의 숙취 예방효과에 대한 이중맹검 무작위배정 교차임상 예비연구)

  • Jeong, Hyun-Suk;Kang, Sei-Young;Han, Hyun-Jin;Jang, In-Soo
    • The Journal of Internal Korean Medicine
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    • v.33 no.4
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    • pp.511-519
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    • 2012
  • Objectives : This study investigated the effect of Sinseonbulchuidan (SBD-1) on hangover syndrome. We undertook this study to test whether SBD-1 is effective in preventing the signs and symptoms of alcohol-induced hangover. Methods : Fifteen healthy volunteers participated in this double-blind randomized crossover study. All participants received either SBD-1 or indistinguishable placebo capsules before alcohol consumption. The primary outcome measure was the difference in hangover severity scores between SBD-1 and placebo intervention. Secondary outcome measure was the difference in profile of mood states (POMS) between SBD-1 and placebo intervention. Results : After alcohol exposure, the overall symptom scores were significantly decreased in the SBD-1 group compared with those given a placebo. The mean scores for the hangover symptoms were high in the placebo group, and statistical significance was observed in 4 symptom scores (loss of appetite, stomachache, nausea, and total score). There were no differences in the POMS and cognitive performance test results between SBD-1 and placebo intervention. Conclusions : We conclude that the SBD-1 is effective in preventing the signs and symptoms of alcohol-induced hangover. Larger studies are required to confirm these findings.

Effects of Utilization of Social Network Service on Collaborative Learning (소셜 네트워크 서비스 활용이 협력 학습에 미치는 효과)

  • Shin, Jin;Chon, Eunhwa
    • Journal of the Korea Society of Computer and Information
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    • v.18 no.11
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    • pp.241-254
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    • 2013
  • The purpose of this study is to analyse the effects of social network service on the collaborative learning. Four groups were categorized depending on the use of different types of the social network services - Kakao Talk, Facebook, both Kakao Talk and Facebook, and unused group. A preliminary test revealed that there was no difference in mobile efficacy, career decision making self-efficacy, course interest among the four groups. In the post test, the groups that used either Kakao Talk group or the group that used both Kakao Talk and Facebook retained significantly higher average score in team collaboration scale than Facebook group and unused group. The analysis of the messages in Facebook exhibited that the group used both Kakao Talk and Facebook generated larger number of messages, read, replies, clicks of "good" than the groups used only Facebook. These results strongly support the statistical significance.

Quality Characteristics of Jeung-Pyun According to the Leavening Agents (팽창제 종류에 따른 증편의 품질 특성)

  • An, Su-Mi;Lee, Kyung-A;Kim, Kyung-Ja
    • Korean Journal of Human Ecology
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    • v.5 no.1
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    • pp.48-61
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    • 2002
  • This study was carried out to investigate the effects of four kinds of leavening agents on Jeung-Pyun fermantation. Milk-wine(M), fresh yeast(F), dry yeast(D), instant yeast(I) were used in Jeung-Pyun ingredients. The physicochemical properties, sensory evaluation were examined. The results of this study are summarized as follows: 1. Basic recipes for Jeung-Pyun by preliminary test were developed. 2. Specific volumes and expansion ratio of Jeung-Pyun was higher in the fresh yeast-added sample. 3. The pH of Jeung-Pyun was decreased significantly as the fermentation progressed 4. In the result comparing Jeung-Pyun extracting after 1st fermentation with Jeung-Pyun extracting 2nd fermentation by SEM, the former was widely distributed in stability of bubble and pore than the latter. 5. Standard recipe by Q.D.A. test added four kinds of leavening agents were as follows: (1)Jeung-Pyun added milk wine was 240min for 1st fermentation time, 60min for 2nd fermentation time, 35$^{\circ}C$ for fermentation temperature, 80% for fermentation humidity respectively. (2) Jeung-Pyun added fresh yeast was 90min for 1st fermentation time, 40min for 2nd fermentation time, 35$^{\circ}C$ for fermentation temperature, 80% for fermentation humidity respectively. (3)Jeung-Pyun added dry yeast was 90min for 1st fermentation time, 60min for 2nd fermentation time, 35$^{\circ}C$ for fermentation temperature, 60% for fermentation humidity respectively. (4)Jeung-Pyun added instant yeast was 90min for 1st fermentation time, 40min for 2nd fermentation time, 30$^{\circ}C$ for fermentation temperature, 60% for fermentation humidity respectively. 6.Based on sensory evaluation, Jeung-Pyun added fresh yeast was significantry higher than others in color, sweetness, moistness, softness, and overall quality. There was negative significance between milk wine flavor and astrigentness, and yeast flavor.

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