• 한국수정란이식학회지
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• 제29권4호
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• pp.321-325
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• 2014

The present study was performed on farm animals to test the effectiveness of progesterone-releasing intravaginal device (Cue-Mate$^{(R)}$ 1.56 g) and injection of prostaglandin $F_{2{\alpha}}$ ($PGF_{2{\alpha}}$) for synchronization estrus in Hanwoo cattle. The cattle were at random stage of the estrus cycle. The cows were artificially inseminated at day 7 after Cue-Mate withdrawal, using commercial semen from Korean native bulls. There was a season effect on the estrus synchronization rate. It was higher in spring (94.3%) followed by winter (93.3%), autumn (90.4%) and summer (67.2%). In summary, The results of this study revealed that season has influences on estrus behavior of cattle with no significant effect on pregnancy rate. In summary, we suggest summer reproductive management to alleviate the effects of heat stress. It should be based on intensive cooling combined with hormonal treatment. Given that different subgroups of cows benefit differently from the treatments, selective hormonal administration should be considered.

• 한국정보전자통신기술학회논문지
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• 제11권5호
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• pp.467-474
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• 2018

다양한 업무 수행에 있어서 회의나 토론 등의 내용을 정리하여 문서화하는 것의 중요성은 매우 높다. 그러나 기존에는 사람이 직접 내용에 대한 정리를 수작업으로 수행하였다. 본 논문에서는 TextRank 알고리즘을 이용하여 자동으로 회의록을 생성하는 시스템의 개발에 대하여 설명한다. 제안한 시스템은 발언자의 모든 발언 내용을 실시간으로 기록하고, 문장들을 출현 빈도수에 기초하여 유사도를 계산한 후, 문서 데이터 안에서 문장들 간의 관계를 찾아내는 비지도 학습 알고리즘을 통해 중요 단어 혹은 문장을 추출함으로서 자동으로 회의록을 생성하도록 하였다. 특히, PageRank 알고리즘을 단어와 문장에 적합하도록 재구성한 TextRank 알고리즘에 대하여 핵심어의 가중치 조정 기법을 도입함으로서 성능 향상을 모색하였다.

• 대한수의학회지
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• 제44권4호
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• pp.669-676
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• 2004

To evaluate the diagnostic accuracy of two commercial ELISA tests (Allied- and CSL-ELISA) for the diagnosis of Mycobacterium paratuberculosis in cattle, Meta-analysis using English language papers published during 1990-2001 was performed. Diagnostic odds ratios (DOR) were analyzed using regression analysis together with summary receiver operating characteristic (ROC) curves. The difference in diagnostic performance between the two ELISA systems was evaluated by using linear regression. Publication bias was assessed by funnel plot and linear regression. The pooled sensitivity and specificity were 44% (95% CI, 38 to 51) and 98% (95% CI, 96 to 99) for the random-effect model. The DOR between studies was heterogeneous. The area under the fitted ROC curve (AUC) was 0.72 for the unweighted and 0.77 for the weighted model. Maximum joint sensitivity and specificity for the unweighted and weighted model from their summary ROC curve were 70% and 75%, respectively. Based on the fitted model, at a specificity of 95%, sensitivity was estimated to be 52% for the unweighted and 57% for the weighted model. From the final multivariable model study characteristic, the country was the only significant variable with an explained component variance of 13.3%. There were no significant differences in discriminatory power, sensitivity, and specificity between the two ELISA tests. The overall diagnostic accuracy of two commercial ELISA tests was moderate, as judged by the AUC, maximum joint sensitivity and specificity, and estimates from the fitted model and clinical usefulness of the tests for screening program is limited because of low sensitivity and heterogeneous of DOR. It is, therefore, recommended to use ELISA tests as a parallel testing with other diagnostic tests together to increase test sensitivity in the screening program.

• 근관절건강학회지
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• 제19권3호
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• pp.373-382
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• 2012

Purpose: The purpose of the study was to compare levels of health-related quality of life (HRQOL) between fallers and non-fallers among community-dwelling elderly people. Methods: A cross-sectional comparative study was conducted with the secondary analysis of 2,067 elderly people registered in S-Gu Visiting Health Care Program in Seoul, South Korea. Participants were 206 fallers and 206 non-fallers who were age- and sex-matched with fallers. HRQOL was measured by SF-8 including physical component summary (physical HRQOL) and mental component summary (mental HRQOL). Results: There were more people in the faller group having more than or equal to three chronic diseases (p<.001), living in multiplex houses (p=.004), and being dependent by the activities of daily living (ADL) (p=.001) and instrumental ADL (IADL) levels (p<.001) than those in the non-faller group. Fallers had higher levels of depression than non-fallers (p<.001). Moreover, fallers had significantly lower levels of both physical HRQOL (p<.001) and mental HRQOL (p=.001), after adjusting for number of chronic diseases, ADL, IADL, depression, healthcare insurance, and living environment. Conclusion: Among the community-dwelling elderly people, falllers had lower levels of HRQOL than non-fallers, and such a difference remained even after the adjustment for covariates. Factors that underlie the different susceptibility to HRQOL need to be explored.

• Journal of Nutrition and Health
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• 제30권7호
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• pp.854-869
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• 1997

This study was conducted to evaluation the quality of meals served in elementary school based on nutrient contents and food diversity . A questionnaire was mailed to school foodservice dietitians requesting one week menus for April and October . Menus served in 388 schools from each province and from major cities in Korea were analyzed. Mean nutrient contents per meal of persons served, and food expenses per meal. Mean percentages of energy from fat was 20.2% , and was significantly l different by foodservice system. When nutrient contents were converted to amount per 1, 000kcal, all were higher than that calculated from RDA except calcium, iron, and Vitamin A. Most of these were not significantly different according to area, foodservice system, the number of persons served, and food expense per meal. Compared to 1/3 of RDA for children , many meals provided lower amounts of energy, Vit A, VitB2, and Ca. More than half of the meals provided less iron than 1/3 RDA for 10-12 years girls. Using the highest values of RDA for the elementary school age group as evaluation, criteria nutrient adequacy ratios(NAR) were lowest for Ca(0.61), Vit A(0.57), and iron(0.77). The mean adequacy ratio(MAR) was 0.86. Mean numbers of food items and dishes per meal were 15.3 and 5.1 , respectively. 66.3% of the meals provided three food groups of grain, meat, and vegetable. Except for the number of different food items served per meal, the aspect of food diversity was similar to that of nutrient contents. There was significant positive correlation between mean number of different food items served per meal and nutrient content . In summary , schools in small cities and rural areas than those in large cities, schools adapting commissary or joint management than those or density. Also the more food groups served per meal, the higher the nutrient content per meal . In summary , schools in small cities and rural areas than those in large cities, schools adapting commissary or joint management than those adapting conventional foodservice system, schools serving smaller number of persons, and schools with higher food expenses provided higher energy contents and food diversity.

• 한국임상약학회지
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• 제29권3호
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• pp.173-185
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• 2019

Objective: To gather inputs from clinical experts on selecting and prioritizing research topics, to address unmet vaccine safety needs. Methods: A questionnaire containing 15 vaccine safety assessment research proposals was sent to 28 vaccine experts chosen from various domestic medical association boards, and the rationale for each of the proposals was provided by presenting the following information: 1) a brief summary of the clinical safety studies on the vaccine, conducted by the Clinical Immunization Safety Assessment (CISA) project group, supervised by the United States Center for Disease Control (U.S. CDC), and 2) a summary of recently published studies that address vaccine safety issues. The experts were instructed to select and rank 5 topics in the order of preference, and the preference score for each proposed topic was calculated by assigning points on a scale of 1 to 5. Results: All 28 experts responded to the questionnaire, and the following topics were selected according to their calculated preference scores: 1) Human papillomavirus vaccine safety profile in the Korean female adolescents; 2) A signal detection of adverse events following Influenza vaccination: comparison between the US and South Korea; 3) Incidence of anaphylaxis following National Immunization Program vaccines between 2008 and 2017; 4) Safety of quadrivalent influenza vaccines compared to trivalent influenza vaccines; and 5) Pneumococcal vaccine safety profile in the general population. Conclusion: Five research topics addressing vaccine safety were selected, for which well-constructed research protocols need to be promptly developed to address current unmet vaccine safety needs in South Korea.

• 디지털융복합연구
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• 제17권4호
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• pp.115-122
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• 2019

온라인 마켓에서 소비자는 다양한 상품을 접하고 이에 대한 의견을 자유롭게 기술한다. 소비자의 상품 리뷰가 다른 소비자와 온라인 마켓의 성공에 큰 영향을 주는 만큼 온라인 마켓은 판매 상품에 대한 소비자의 감성을 정확하게 분석할 필요가 있다. 데이터 분석 기법 중 하나인 텍스트 마이닝은 상품에 대한 소비자 리뷰를 분석하여 상품을 효율적으로 관리할 수 있게 해준다. 선행 연구들은 데이터 도메인과 사이즈에 따라 분석 결과의 정확도가 다르게 나타남에도 불구하고 특정 도메인과 2만개 미만의 데이터를 분석해왔다. 또한, 분석의 정확도를 향상 시킬 수 있는 추가 요인에 대한 연구는 거의 수행하지 않았다. 본 연구는 앙상블 기법을 활용하여 기존 연구에서 주로 다루지 않은 음식 상품 도메인의 72,530개 리뷰 데이터를 분석하였다. 또한, 분석 정확도 향상과 관련하여 요약 리뷰의 영향력을 살펴보았다. 연구 결과, 본 연구는 기존 연구와 다르게 부스팅 앙상블 기법이 가장 높은 분석 정확도를 보인다는 사실을 발견하였다. 또한, 요약 리뷰는 분석의 정확도 향상에 기여하는 것으로 나타났다.

• 사상체질의학회지
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• 제33권3호
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• pp.127-137
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• 2021

Objectives The purpose of this study was to identify the effects of personality by each Sasang constitution on sleep using Positive Affect and Negative Affect Schedule(PANAS) and NEO-personality inventory(NEO-PI). Methods The subjects of this study were 2,078 people who had information on Sasang constitutional type and personality(PANAS, NEO-PI) among the data established at the Korean Medicine Data Center. Sleep time and sleep quality were investigated through self-written questionnaires. Sleep time was collected by hand-writing, and sleep quality was checked on a 4 point Likert scale. Pearson correlation analysis was conducted to see the correlation between personality and sleep in each constitutional type. Logistic regression was performed using personality as independent variables to find out how much personality affects sleep time. In order to find out how much personality affects sleep quality, regression analysis was performed using personality as independent variables. Results & Conclusions Sleep time was hardly affected by personality. As a result of Pearson correlation analysis, sleep time in all subjects did not show a significant correlation with personality. In logistic regression on sleep time as the dependent variable, no statistically significant results were obtained except for the Negative Affect(NA) in Taeeumin. Sleep quality showed a statistically significant correlation with the negative affect(NA), neuroticism(N), extraversion(E), Physical Component Summary(PCS) and Mental Component Summary(MCS). As a result of regression analysis on sleep quality as the dependent variable, neuroticism(N), negative affect(NA), positive affect(PA), and extraversion(E) were found in the factors affecting sleep quality. Besides, how much personality affected sleep quality might differ in each constitution. In all constitutions, sleep quality was affected by N, but the rank of N was different in each constitution. The sleep quality of Soyangin was not affected by E, and the sleep quality of Taeeumin was specifically affected by O.

• Clinics in Shoulder and Elbow
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• 제22권4호
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• pp.210-215
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• 2019

Background: This study was undertaken to evaluate early clinical outcomes of ultrasound-guided suprascapular nerve block (SSNB) using a proximal approach, as compared with subacromial steroid injection (SA). Methods: This retrospective study included a consecutive series of 40 patients of SSNB and 20 patients receiving SA, from August 2017 to August 2018. The visual analogue scale (VAS), American Shoulder Elbow Surgeon's score (ASES), University of California, Los Angeles score (UCLA), the 36 health survey questionnaire mental component summary (SF36-MCS), physical component summary (PCS), and range of motion (forward elevation, external rotation, and internal rotation) were assessed for clinical evaluations. Results: Compared with the baseline, VAS, and ranges of motion in the SSNB group significantly improved at the 4-week follow-up (VAS scores improved from $6.7{\pm}1.6$ to $4.3{\pm}2.4$, p<0.001; all ranges of motion p<0.05), while other variables showed no statistically significant differences. All clinical variables were significantly improved in the SA group (p<0.05). However, all clinical scores at the 4-week follow-up showed no significant difference between groups. Conclusions: Ultrasound-guided SSNB using proximal approach provides significant pain relief at 4-weeks after treatment, with statistically significant difference when compared with SA, suggesting that SSNB using proximal approach is a potentially useful option in managing shoulder pain. However, in the current study, it was less effective in improving shoulder function and health-related quality of life, compared with SA.

• 대한화학회지
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• 제64권6호
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• pp.389-400
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• 2020

이 연구는 논의기반 탐구 과학수업이 초등학생의 과학 글쓰기에서 나타나는 주장과 증거에 미치는 영향을 알아보는 것을 목적으로 하였다. 이를 위해 광역시 소재의 초등학교 5학년 2개 학급의 학생(33명)을 대상으로 5개 주제의 논의기반 탐구 과학수업을 적용하였다. 논의기반 탐구 과학수업이 과학 글쓰기의 주장과 증거에 미치는 영향을 알아보기 위해 학생들이 작성한 과학 글쓰기를 분석하였으며, 논의수업을 적용한 실험집단의 5개의 주제에 대한 활동지의 과학 글쓰기를 분석하여 주장과 증거의 변화를 알아보았다. 과학 글쓰기 분석 결과, 과학 글쓰기에서 실험집단의 평균이 비교집단보다 유의미하게 높았다. 실험집단의 과학 글쓰기에서 나타나는 주장과 증거 분석 결과, 수업의 횟수가 거듭됨에 따라 주장과 증거의 수준이 점차 증가하는 경향이 나타났다.