• Title/Summary/Keyword: website evaluation

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Development and Evaluation of Nutrition Education Program for Sodium Reduction in Foodservice Operations (단체급식소 나트륨 섭취감소를 위한 영양교육 프로그램 개발 및 효과 평가)

  • Shin, Eun-Kyung;Lee, Hye-Jin;Jun, So-Yoon;Park, Eun-Jung;Jung, Yun-Young;Ahn, Moon-Young;Lee, Yeon-Kyung
    • Korean Journal of Community Nutrition
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    • v.13 no.2
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    • pp.216-227
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    • 2008
  • The purpose of this study was to develop a nutrition education program for dietary salt reduction using various nutrition education materials. The effect of a 5-week nutrition education program on salty taste assessment, nutrition knowledge, salt attitude for a high-salt diet, salt content in food, and individual satisfaction with the salt concentration of meals during the education period was evaluated. Nutrition education materials included two animations, a pamphlet, panels, and a website, as well as other training resources. Subjects participating in this study were 335 employees (164 male, 171 female) at 15 foodservice operations in Daegu. Preference for higher levels of salty taste and food containing higher amounts of salt were lowered. Knowledge regarding the necessity for dietary salt reduction was higher (p < 0.001) than before nutrition education, and salt content in a meal was reduced. As the program progressed, average salt concentrations of soups were significantly lowered (p < 0.05), and there was greater satisfaction with the lower concentration (p < 0.001). This was a positive indication of the program's success. In addition, it was found that subjects who participated in the program several times have changed their preference to lower levels of salty taste and have increased their nutrition knowledge (p < 0.05, p < 0.001). Thus, the positive effect of this 5-week nutrition education program developed for, and applied to, foodservice employees, concerning dietary salt reduction was confirmed.

Machine Learning based Firm Value Prediction Model: using Online Firm Reviews (머신러닝 기반의 기업가치 예측 모형: 온라인 기업리뷰를 활용하여)

  • Lee, Hanjun;Shin, Dongwon;Kim, Hee-Eun
    • Journal of Internet Computing and Services
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    • v.22 no.5
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    • pp.79-86
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    • 2021
  • As the usefulness of big data analysis has been drawing attention, many studies in the business research area begin to use big data to predict firm performance. Previous studies mainly rely on data outside of the firm through news articles and social media platforms. The voices within the firm in the form of employee satisfaction or evaluation of the strength and weakness of the firm can potentially affect firm value. However, there is insufficient evidence that online employee reviews are valid to predict firm value because the data is relatively difficult to obtain. To fill this gap, from 2014 to 2019, we employed 97,216 reviews collected by JobPlanet, an online firm review website in Korea, and developed a machine learning-based predictive model. Among the proposed models, the LSTM-based model showed the highest accuracy at 73.2%, and the MAE showed the lowest error at 0.359. We expect that this study can be a useful case in the field of firm value prediction on domestic companies.

The Effect of Yijung-tang for Chronic Gastritis: A Systemic Review and Meta-Analysis (만성 위염에 대한 이중탕(理中湯)의 효과 : 체계적 문헌 고찰 및 메타 분석)

  • Ye-seul Kim;Yeong-seo Lee;Kyoung-min Kim;Myung-ho Jin
    • The Journal of Internal Korean Medicine
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    • v.44 no.4
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    • pp.675-702
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    • 2023
  • Objective: This study assessed the effectiveness of using Yijung-tang to treat chronic gastritis through a systematic review and meta-analysis of randomized controlled trials (RCTs). Methods: The search was conducted using keywords such as "gastritis", "Lizhong", "Yijung", and "Chronic gastritis" on July 31, 2023. A meta-analysis was conducted according to outcome measurements, such as total effective rate (TER), Traditional chinese medicine symptom score (TSS), gastric hormones, and symptom relief time, using the Review Manager website. Results: A total of 11 RCT studies were selected. The treatment group (Yijung-tang-gagam or Yijung-tang-gagam+Western medicine) showed significant improvement effects in terms of TER, TSS, serum gastrointestinal hormones (motilin (MTL), gastrin (GAS), and somatostatin (SS)), and symptom relief time compared to the control group (Western medicine). TER-RR : 1.20, 95% CI : 1.11 to 1.30, P≤0.00001, RR : 1.21, 95% CI : 1.14 to 1.28, P≤0.00001; MTL-MD : 35.99, 95% CI : 30.79 to 41.20, P≤0.00001); GAS-MD : 103.33, 95% CI : 97.62 to 109.04, P≤0.00001); SS : MD : -37.19, 95% CI : -41.75 to -32.64, P≤0.00001; symptom relief time (nausea)-MD : -1.96, 95% CI : -2.47 to -1.45, P≤0.00001; symptom relief time (colic)-MD : -1.75, 95% CI : -2.31 to -1.18, P≤0.00001. Conclusion: This study suggests that Yijung-tang is effective against chronic gastritis. However, the number of studies was insufficient, and the diagnosis and evaluation criteria were not standardized. Furthermore, because of the low quality of the included studies, more clinical studies need to be conducted to increase the possibility of clinical use.

Evaluation of the Quality of the Case Reports in the Journal of Korean Obstetrics and Gynecology from April 2019 to February 2024 Based on the CARE Guidelines (CARE(CAse REport) 지침에 따른 2019-2024년 대한한방부인과학회지 증례보고의 질 평가)

  • Han-Seul Kwon;Ye-Jin Yoon;Hyeong-Jun Kim
    • The Journal of Korean Obstetrics and Gynecology
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    • v.37 no.2
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    • pp.17-34
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    • 2024
  • Objectives: The purpose of this study is to evaluate the quality of case reports published in the Journal of Korean Obstetrics and Gynecology from April 2019 to February 2024, compared with January 2015 to March 2019. Methods: Case reports were selected by searching from archive on the website of society of the Journal of Korean Obstetrics and Gynecology. The quality of the case reports were assessed based on CAse REport (CARE) guideline. Results: A total of 30 case reports was finally included for the assessment. Overall quality of reporting for case reports published from April 2019 to February 2024 was improved compared to one of previous study. However, the 4 items of CARE guidelines with an unreported rate of 50% or more - patient's perspective on interventions (96.67%), diagnostic challenges (93.33%), intervention adherence and tolerability (93.33%), adverse events (56.67%) - are items that require active description in future case reports. In addition, Keyword and timeline have more than 50% reported to be 'Not-sufficient' in both previous and present studies. So active efforts by researchers are needed to include 'Case report (or Case study)' in keywords, and to include intervention by period, symptom changes in a timeline. Conclusions: Despite the overall improvement in the quality of reporting in the Journal of Korean Obstetrics and Gynecology, efforts to improve the quality of case reports should be continued.

The Effect of Gammaekdaejo-tang for Post-stroke Depression: A Systemic Review and Meta-Analysis (뇌졸중 후 우울증에 대한 감맥대조탕(甘麥大棗湯)의 효과 : 체계적 문헌 고찰 및 메타 분석)

  • Ye-seul Kim;Yeong-seo Lee;Young-kyun Kim;Kyoung-min Kim
    • The Journal of Internal Korean Medicine
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    • v.45 no.3
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    • pp.396-414
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    • 2024
  • Objective: This study assessed the effectiveness of Gammaekdaejo-tang for post-stroke depression through a systematic review and meta-analysis of randomized controlled trials (RCTs). Methods: A search was conducted using keywords such as "Post-stroke Depression", "PSD", "Gammaekdaejo", and "Ganmai-dazao" on April 30, 2024. A meta-analysis was conducted according to outcome measurements, such as total effective rate (TER), HDRS (Hamilton Depression Rating Scale), and NIHSS (National Institute of Health Stroke Scale), using the Review Manager website. Results: A total of 10 RCTs was selected. The treatment group ((Gammaekdaejo-tang) or (Gammaekdaejo-tang combined with other ingredients or decoction)+Western medicine) showed significant improvement effects in terms of TER, HDRS, and NIHSS compared to the control group (Western medicine). [TER] RR: 1.19, 95% CI: 1.11 to 1.27, P<0.00001, RR: 1.24, 95% CI: 1.11 to 1.38, P<0.00001; [HDRS] MD: -2.29, 95% CI: -2.58 to -2.00, P<0.00001), MD: -3.28, 95% CI: -4.21 to -2.35, P<0.00001) [NIHSS] MD: -7.70, 95% CI: -8.52 to -6.89, P<0.00001. Conclusion: This study suggests that Gammaekdaejo-tang is effective in treating PSD. However, there are limitations, such as the small number of included studies, inability to clearly determine the effect of Gammaekdaejo-tang, inability to use various evaluation tools, and risk of bias. This research must be supplemented through systematic research design and implementation.

A Study on World University Evaluation Systems: Focusing on U-Multirank of the European Union (유럽연합의 세계 대학 평가시스템 '유-멀티랭크' 연구)

  • Lee, Tae-Young
    • Korean Journal of Comparative Education
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    • v.27 no.4
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    • pp.187-209
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    • 2017
  • The purpose of this study was to highlight the necessity of a conceptual reestablishment of world university evaluations. The hitherto most well-known and validated world university evaluation systems such as Times Higher Education (THE), Quacquarelli Symonds (QS) or Academic Ranking of World Universities (ARWU) primarily assess big universities with quantitative evaluation indicators and performance results in the rankings. Those Systems have instigated a kind of elitism in higher education and neglect numerous small or local institutions of higher education, instead of providing stakeholders with comprehensive information about the real possibilities of tertiary education so that they can choose an institution that is individually tailored to their needs. Also, the management boards of universities and policymakers in higher education have partly been manipulated by and partly taken advantage of the elitist ranking systems with an economic emphasis, as indicated by research-centered evaluations and industry-university cooperation. To supplement such educational defects and to redress the lack of world university evaluation systems, a new system called 'U-Multirank' has been implemented with the financial support of the European Commission since 2012. U-Multirank was designed and is enforced by an international team of project experts led by CHE(Centre for Higher Education/Germany), CHEPS(Center for Higher Education Policy Studies/Netherlands) and CWTS(Centre for Science and Technology Studies at Leiden University/Netherlands). The significant features of U-Multirank, compared with e.g., THE and ARWU, are its qualitative, multidimensional, user-oriented and individualized assessment methods. Above all, its website and its assessment results, based on a mobile operating system and designed simply for international users, present a self-organized and evolutionary model of world university evaluation systems in the digital and global era. To estimate the universal validity of the redefinition of the world university evaluation system using U-Multirank, an epistemological approach will be used that relies on Edgar Morin's Complexity Theory and Karl Popper's Philosophy of Science.

Extraction of user's representative emotions expressed while using a product (제품 사용 중 표출되는 사용자의 대표감성 추출에 관한 연구)

  • Jeong, Sang-Hoon;Lee, Kun-Pyo
    • Archives of design research
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    • v.18 no.1 s.59
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    • pp.69-80
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    • 2005
  • So far, there have been mary studies on human emotions and the emotional side of products in the field of emotional engineering. Contemporary emotion-related researches have focused mainly on the relationship between product aesthetics and the emotional responses elicited by the products, but little is known about emotions elicited from using the products. In this study we have extracted some emotional words that can come up during user interaction with a product and reveal emotional changes. Firstly, we assembled a set of emotional words that were sufficient to represent a general overview of Korean emotions, collected from various literature studies in the field of psychology, linguistics, emotional engineering. Secondly, we found emotional words from collecting user opinion on the website. In this study, we used heavy traffic websites such as shopping mall and mania sites. Finally the emotional words were collected from verbal protocols by using Think Aloud technique. The collected words were integrated according to standards and they were applied on evaluation survey twice for evaluating their appropriateness. This survey was conducted for identification of emotional expressions while using a product. Finally, we extracted 88 emotional words for measuring user's emotions expressed while using products. And we categorized the 88 words to form 6 groups by using factor analysis. The 6 categories that were extracted as a result of this study, such as aesthetics, satisfaction in usability, novelty, uncomfortable- ness, pleasure and excellence were found to be user's representative emotions expressed while using products. It is expected that emotional words and user's representative emotions extracted in this study will be used as subjective evaluation data that is required to measure user's emotional changes while using a product.

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A Study on the Viewer Usage and Evaluation of Television Network Websites and the Respective Feedback (지상파 TV 3사의 홈페이지 이용실태와 서비스 평가에 관한 연구)

  • Seol, Jin-Ah
    • Korean journal of communication and information
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    • v.32
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    • pp.147-168
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    • 2006
  • This study attempts to evaluate the Korean terrestrial television networks‘ internet site effectiveness, specifically in addressing user motivations and user evaluations and in gauging the broadcasters' feedback. The result shows that the primary motive for using a broadcaster's internet homepage was to obtain information. Overall, the users tended to be dissatisfied with the services, especially with regards to its navigational structure and design and with the insufficient number of appropriate content items. The reason cited highest for dissatisfaction was the fee-based services. Among the three networks, Seoul Broadcasting System, the sole commercial network, received the most complaints from the respondents in this respect. The study results reveal that broadcasters' feedback systems to users were deemed responsive and timely, but a true interactivity between the broadcasters and the viewers was lacking. In conclusion, network televisions' internet sites and increased content access through them have provided a platform for increased communication with their viewers, however, these sites are not yet being fully utilized as effective interactive communication feedback channels but more as a unidirectional information source. In addition, the network television services seem to be lacking in providing users with efficient navigational structure, good design, or adequate content level and quality. Thus, to better serve the public, it is recommended that they improve internet homepage usability by assessing and applying qualitative researches regarding the users.

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The Effects of Self-construals, Self-esteem, and Gender on the Evaluation of Personal Web Sites' Self-presentation Styles (방문자의 자아 구성, 자아 존중감, 성별이 개인 웹사이트에 드러난 자기 제시(self-presentation)에 대한 평가에 미치는 영향)

  • Lee, Yun-Mi;Yang, Hye-Young;Lee, Mi-Na;Kim, Joo-Han
    • Korean journal of communication and information
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    • v.36
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    • pp.254-286
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    • 2006
  • The purpose of the present study is to examine how visitors of personal web sites evaluate self presentation styles. We hypothesized that visitors' gender, self construals, and self esteem would influence the evaluation (likeability and perceived competence) of the self presentation styles (bragging or positive presentation). The hypothesized models were tested with structural equation modeling. Gender differences among the constructs were also examined through latent mean analysis. The results revealed that females tended to have higher interdependent self construal than males. And the male and the female students showed higher likeability toward the self presentations of the other gender. Regarding perceived competence, women and men perceived the other gender more competent, and especially, women perceived men's bragging presentation more competent. Self construals and self esteem, however, did not show any significant effects, which were inconsistent with the results of the previous studies conducted with offline self presentation styles. One of the main implications of this study is that visitors' gender, among other things, is the most infueltial factor in perceiving and evaluating others' self presentation through personal web sites.

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Characteristics of Clinical Trials in Korea for Atopic Dermatitis - Focus on ClinicalTrials.gov Registered Clinical Trials - (식약처 승인 아토피 피부염 의약품 국내 임상 시험의 특성 - ClinicalTrials.gov 등록 임상시험을 중심으로-)

  • Hwang, Mi-Lee;Ahn, Jae-Hyun;Jea, Ha-Kyung;Kim, Soo-Young;Jung, Hyun-A
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.32 no.2
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    • pp.68-93
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    • 2019
  • Objective : This study summarized the characteristics of clinical trials for atopic dermatitis medicines approved by the Ministry of Food and Drug Safety(MFDS). This study may be a reference for the design of clinical trials of atopic dermatitis herbal medicine treatment which may be carried out later. Method : The characteristics of the clinical trial were analyzed for clinical trials registered with ClinicalTrials.gov, CRIS, and the Korea Health Industry Development Institute among the clinical trial approval statuses posted on the website of the MFDS. Result : 1. Clinical trial drugs were developed in various formulations such as oral medicines, injections, dermatologic agents, and similar proportions. Relatively little clinical trials were found for herbal medicine. 2. In the control evaluation test, most of the treatments for the control group were performed with placebo using Vehicle. 3. In most clinical trials, one intervention group was in the form of a parallel assignment with only one treatment. 4. The age of the subjects was 11 out of 28 studies including minors, and clinical trials targeting minors were also found to be significant. 5. In the case of atopic dermatitis, the cases of subacute chronic or atopic dermatitis more than 6 months or more than 1 year were often used. 6. Most clinical trials were divided into mild to moderate atopic dermatitis or moderate to severe atopic dermatitis. The SCORAD index, EASI, IGA, BSA, and NRS were used as the evaluation criteria. 7. Regulations for the drugs used prior to the trial period for the treatment of atopic dermatitis vary somewhat from one clinical trial to another. 8. IGA was used most often as a primary efficacy tool, and SCORAD index, EASI, and NRS were also used.