• 한국수학교육학회지시리즈A:수학교육
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• 제58권4호
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• pp.609-625
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• 2019

최근 국제 수학교육에서 가치(values)를 다루는 프로젝트나 연구물이 증가하고 있으나 우리나라에서는 소개된 것이 많지 않다. 본 연구에서는 Bishop(1996)의 '수학적 가치'와 '수학 교육적 가치'를 중심으로 체계적인 문헌 검토를 통하여 최종 66편의 논문을 선정하였고 연구시기, 프로젝트, 분석 대상, 연구 방법을 기준으로 연구 동향을 제시하였다.

• Asian Pacific Journal of Cancer Prevention
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• 제14권11호
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• pp.6233-6239
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• 2013

Diabetes represents a serious health problem. In the diabetic state, alterations in metabolism, increased susceptibility to infections and immunological changes occur. The suppression of the immune response has been identified as a relevant factor that contributes to the increase in the rate of infections in these patients. At the same time, breast cancer is the most frequent malignant tumor in women. The molecular and cellular mechanisms underlying cancer development have revealed that immune cells functionally regulate epithelial cancer development and progression. Breastfeeding has been hypothesized to reduce the risk of breast cancer. However, early systematic reviews have not yielded consistent findings for this association. The demand for human milk is increasing due to the promotion and consumer acceptance of the health benefits of consuming a natural product rich in bioactive components. However, due to changes in glucose metabolism, the components of the milk from diabetic women are modified depending on the time of evaluation. In this literature review, we summarize important new findings revealing the paradoxical role of breastfeeding in preventing the onset of breast cancer in diabetic mothers. We hypothesized that the milk component production in diabetic mothers is affected by changes in glucose metabolism. Therefore, adequate maternal glycemic control and an adequate duration of breastfeeding for diabetic mothers are crucial to ensure that the immunity components are able to confer protection against breast cancer.

• Asian Pacific Journal of Cancer Prevention
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• 제16권14호
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• pp.5655-5661
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• 2015

Purpose: To assess the role of two adjuvant chemotherapy regimens, anthracycline-based and CMF on disease free survival and overall survival breast cancer patients by meta-analysis approach in Eastern Mediterranean and Asian countries to determine which is more effective and evaluate the appropriateness and efficiency of two different proposed statistical models. Materials and Methods: Survival curves were digitized and the survival proportions and times were extracted and modeled to appropriate covariates by two multivariate mixed effects models. Studies which reported disease free survival and overall survival curves for anthracycline-based or CMF as adjuvant chemotherapy that were published in English in the Eastern Mediterranean region and Asia were included in this systematic review. The two transformations of survival probabilities (Ln (-Ln(S)) and Ln(S/ (1-S))) as dependent variables were modeled by a multivariate mixed model to same covariates in order to have precise estimations with high power and appropriate interpretation of covariate effects. The analysis was carried out with SAS Proc MIXED and STATA software. Results: A total of 32 studies from the published literature were analysed, covering 4,092 patients who received anthracycline-based and 2,501 treated with CMF for the disease free survival and in order to analyze the overall survival, 13 studies reported the overall survival curves in which 2,050 cases were treated with anthracycline-based and 1,282 with CMF regimens. Conclusions: The findings illustrated that the model with dependent variable Ln (-Ln(S)) had more precise estimations of the covariate effects and showed significant difference between the effects of two adjuvant chemotherapy regimens. Anthracycline-based treatment gave better disease free survival and overall survival. As an IPD meta-analysis in the Italy the results of Angelo et al in 2011 also confirmed that anthracycline-based regimens were more effective for survival of breast cancer patients. The findings of Zare et al 2012 on disease free survival curves in Asia also provided similar evidence.

• Asian Pacific Journal of Cancer Prevention
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• 제14권8호
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• pp.4871-4875
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• 2013

This meta-analysis was performed to evaluate and compare the outcomes of robotic gastrectomy (RG) and laparoscopic gastrectomy (LG) for treating gastric cancer. A systematic literature search was carried out using the PubMed database, Web of Knowledge, and the Cochrane Library database to obtain comparative studies assessing the safety and efficiency between RG and LG in May, 2013. Data of interest were analyzed by using of Review Manager version 5.2 software (Cochrane Collaboration). A fixed effects model or random effects model was applied according to heterogeneity. Seven papers reporting results that compared robotic gastrectomy with laparoscopic gastrectomy for gastric cancer were selected for this meta-analysis. Our metaanalysis included 2,235 patients with gastric cancer, of which 1,473 had undergone laparoscopic gastrectomy, and 762 had received robotic gastrectomy. Compared with laparoscopic gastrectomy, robotic gastrectomy was associated with longer operative time but less blood loss. There were no significant difference in terms of hospital stay, total postoperative complication rate, proximal margin, distal margin, numbers of harvested lymph nodes and mortality rate between robotic gastrectomy and laparoscopic gastrectomy. Our meta-analysis showed that robotic gastrectomy is a safe technique for treating gastric cancer that compares favorably with laparoscopic gastrectomy in short term outcomes. However, the long term outcomes between the two techniques need to be further examined.

• 한국조경학회지
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• 제31권4호
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• pp.25-38
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• 2003

The main problems of disordered and congested urban landscape are due to the lack of holistic management that can control various elements of forming a city. Especially, the color of urban landscape is problematic because it is related to individual and social characteristics as well as to physical characteristics. Therefore, temporary expedients that can solve only visualized problems can not be a proper solution for color problems of urban landscape. This study originated from the question about why the color of disordered and congested urban landscape has not been improved. This study aims at directly improving the urban environmental color by finding out what the actual problems related to color are, and what the solutions would be. The goal of this study is to find a holistic systematic problem-solving method. Problems of urban environmental color are identified from both literature review and questionnaires to the expert group, such as environmental planning, design group, and the landscape executive group. Through mapping of relationships among these problems, the intellectual map was made to layout the structures of problems. Based on this method, the structures of problems of urban environmental color were classified into 5 categories: 1) the items related to the administrative structure, 2) the items related to the color management goal and system, 3) the items related to the color planning and design phase, 4) the items related to the color consulting committee, and 5) the items related to the present state of color use. Thus, in order to solve the color problem in urban landscape, practical strategy is strongly required. It is not a temporary expedient but a holistic approach. The solution for the problems of urban environmental color could be divided into 6 types; ‘regulations amendment’,‘color standard amendment’,‘color management plan’,‘color education’, and ‘advertisement for the goal of color management’. Regulations amendment among these types was proposed as the most effective method due to the close relationship with problem categories. Thus, as the solution for the problems of urban environmental color, the ‘color management system’ was suggested. Detailed contents the suggested color management system were divided into three parts; 1) legislation by regulations, ordinance and acts, 2) management by controling the level of guidelines, and 3) the standards for execution of this system.

• 대한한방내과학회지
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• 제36권4호
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• pp.561-569
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• 2015

Objectives The purpose of this study was to improve the knowledge of the low-level laser therapy (LLLT) field and to review research reports on LLLT to understand the current situation with respect to the clinical indication and current research trends.Methods A survey was carried out on the subject of low-level laser therapy to September 2012, using the PubMed search engine. Selected literature was checked by two reviewers and was classified according to the International Classification of Diseases 10th (ICD-10) over 10 years.Results We selected 469 studies in total, of which 142 were case reports, 118 were case-controlled trials, and 209 were randomized controlled trials of LLLT. According to the ICD-10 classification of diseases, the K code and M code being the most common, 399 studies have been published in the last 10 years. This shows that the study and clinical indications of low-level laser therapy have rapidly increased over the past 10 years.Conclusions Low-level laser therapy has been used most frequently with respect to dentistry and pain and musculoskeletal disorders. Recently, interest in and research into LLLT has increased for various diseases. With the establishment of standard conditions for low-level laser therapy, supported by aggressive clinical utilization and systematic clinical research, LLLT will be a very useful treatment and a useful alternative method in many medical fields.

• 공학교육연구
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• 제12권2호
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• pp.96-106
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• 2009

본 논문은 공학교육에서 PBL을 실천하기 위한 문제개발 전략을 제시하는데 목적이 있다. 이를 위해 문제개발 경험이 없는 교수들에게 'PBL의 실천과 문제개발을 위한 프로그램'을 제공하여 실제적 문제를 개발하는 경험을 갖게 한 후 이들의 문제개발 과정과 개발된 문제의 특성에 대한 분석 결과를 공학 분야의 실제 업무 과정 및 각 과정의 성과물과 비교하여 문제 개발 시 고려해야 할 사항을 추출하였다. 연구결과, 개발된 문제는 PBL 문제의 주요 특성 중 '실제성'이 부족하였다. 따라서 문제의 실제성을 높이기 위해서는 실제 맥락에서 이루어지는 업무의 단계와 각 단계에서 산출되는 산출물이 문제에 충분히 반영되어야 하고, 학년의 구분없이 모든 교과목에서 활용되어야 할 것이다. 따라서 공학교육의 목적에 부합한 PBL 문제를 개발하기 위해서는 교수들에게 그들의 요구처럼 전공별로 다양한 실제적 문제 사례를 경험해 불 수 있도록 하는 지원이 필요하다고 할 수 있다.

• 한국문헌정보학회지
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• 제45권1호
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• pp.311-332
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• 2011

국내 다문화현상이 가속화되고 있음에도 국내 공공도서관은 다문화서비스 경험이 최근 5년 내외로, 대부분의 도서관이 단편적인 프로그램 위주로 운영하고 있으며, 장기적인 계획과 방향성, 전문 인력 등이 부족한 상황이다. 이에 국외 다문화서비스 성공사례와 국내 현황조사 및 설문조사를 통하여 공공도서관들이 체계적인 다문화서비스를 준비하는데 활용할 수 있는 다문화서비스 모형을 개발하였다. 이를 위하여 1, 2차 사전조사(평균, 표준편차)와 의견조사를 통하여 다문화서비스 요소안을 확정하고, 본 조사를 실시하여 핵심요소를 선정하여 모형을 개발하였다. 요소들의 특성 분석을 위하여 T-검증과 분산분석을 사용하였다. 원활한 다문화서비스의 운영을 위해서는 도서관을 둘러싼 사회 교육기관, 타 도서관들과의 관계, 국제적인 네트워크를 통한 상호협조가 필요하며, 이를 반영하여 다문화서비스 운영시스템을 도식화하였다.

• 한국산학기술학회논문지
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• 제17권4호
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• pp.512-520
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• 2016

유방암은 여성에서 가장 흔한 악성종양이며, 림프부종은 가장 흔한 유방암수술 후 합병증 가운데 하나이다. 따라서 림프부종과 같은 치료 후유증의 위험도 감소와 적절한 관리는 유방암 생존 환자와 의사에게 있어서 그 중요성이 점차 커지고 있다. 이러한 림프부종의 발생을 예방하기 위하여 흔히 운동이 처방된다. 그러나 그러한 운동의 시기와 효과에 대해서는 각각 상반된 결과들이 보고되어 왔다. 저자들은 림프부종에 대한 운동 효과를 점검하여 환자 치료에 최선의 근거를 도입하기 위해 최신문헌과 상호 심사된 출판물, 전문 기구의 웹사이트를 체계적으로 고찰하여 림프부종의 예방이나 치료를 위해 시행되는 운동의 효과를 검토하였고, 그 결과 이미 림프부종이 발생해 있는 환자들에서는 임상적인 부종진행의 차이점에 유의성이 없었지만, 발생 전 환자들에서는 운동 혹은 훈련이 이차성 림프부종의 발생을 감소시키고 진행을 변경시키는 양상을 볼 수 있었다. 암치료의 발전, 암과 운동 연구, 림프부종의 관리를 위해서는 현재까지 도출된 근거들에 대한 고찰과 이해가 있어야 임상의사들이 적절한 환자 교육과 전문가의뢰를 시행할 수 있을 것이다.

• The Journal of Advanced Prosthodontics
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• 제6권6호
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• pp.498-504
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• 2014

PURPOSE. Dental implant has gained clinical success over last decade with the major drawback related to osseointegration as properties of metal (Titanium) are different from human bone. Currently implant procedures include endosseous type of dental implants with nanoscale surface characteristics. The objective of this review article is to summarize the role of nanotopography on titanium dental implant surfaces in order to improve osseointegration and various techniques that can generate nanoscale topographic features to titanium implants. MATERIALS AND METHODS. A systematic electronic search of English language peer reviewed dental literature was performed for articles published between December 1987 to January 2012. Search was conducted in Medline, PubMed and Google scholar supplemented by hand searching of selected journals. 101 articles were assigned to full text analysis. Articles were selected according to inclusion and exclusion criterion. All articles were screened according to inclusion standard. 39 articles were included in the analysis. RESULTS. Out of 39 studies, seven studies demonstrated that bone implant contact increases with increase in surface roughness. Five studies showed comparative evaluation of techniques producing microtopography and nanotopography. Eight studies concluded that osteoblasts preferably adhere to nano structure as compared to smooth surface. Six studies illustrated that nanotopography modify implant surface and their properties. Thirteen studies described techniques to produce nano roughness. CONCLUSION. Modification of dental osseous implants at nanoscale level produced by various techniques can alter biological responses that may improve osseointegration and dental implant procedures.