Trends in rotator cuff surgery: Research through the decades

IntroductionThe aim of this study is to analyse the most cited articles in rotator cuff surgery and identify trends in topics by decade to see which areas may still need further investigationMethodsJournal Citation Index was searched to find articles using the search terms pertaining to “rotator cuff repair”. All articles were ranked according to most cited, and then further analysed to find most cited articles in each decade. Articles were grouped into topics to find themes for each decade.ResultsAll the most cited articles were published in 6 orthopaedic journals. Only 4 of the top 30 citations provided level I evidence. Each decade’s most cited articles seemed to fit into a broad topic, with platelet-rich plasma and biologic augmentation being prominent in the last decade.ConclusionThere are still many unanswered questions in rotator cuff surgery, but this may be because success of certain treatment options are highly dependent on patient selection. Despite growing numbers of articles being published on rotator cuff repairs, the level of evidence remains low. Larger, collaborative projects may help in answering the common dilemmas that still face shoulder surgeons.     

Application of time series discretization using evolutionary programming for classification of precancerous cervical lesions

In this work, we present a novel application of time series discretization using evolutionary programming for the classification of precancerous cervical lesions. The approach optimizes the number of intervals in which the length and amplitude of the time series should be compressed, preserving the important information for classification purposes. Using evolutionary programming, the search for a good discretization scheme is guided by a cost function which considers three criteria: the entropy regarding the classification, the complexity measured as the number of different strings needed to represent the complete data set, and the compression rate assessed as the length of the discrete representation. This discretization approach is evaluated using a time series data based on temporal patterns observed during a classical test used in cervical cancer detection; the classification accuracy reached by our method is compared with the well-known times series discretization algorithm SAX and the dimensionality reduction method PCA. Statistical analysis of the classification accuracy shows that the discrete representation is as efficient as the complete raw representation for the present application, reducing the dimensionality of the time series length by 97%. This representation is also very competitive in terms of classification accuracy when compared with similar approaches.     

《纽约时报》所报道中医药内容的媒体形象分析

目的：通过分析《纽约时报》刊载的中医药报道，分析中医药的媒体形象。方法运用内容分析法，对1980－2015年发表于《纽约时报》与中医药相关的113篇报道的数量、体裁、消息来源、报道倾向、主要议题等进行收集并分析。结果①中医药报道数量总体呈上升趋势，体裁较为丰富，消息来源以美国本土为主。②报道倾向总体为正面，但对针灸与中药的报道态度存在较大差异。③报道存在11个主要议题。结论中医药的媒体形象总体略偏向正面，但媒体对于中药的负面态度不利于中药在美国的发展。为塑造中医药良好的媒体形象，仍需加强中医药的对外传播。     

沙美特罗治疗慢性阻塞性肺疾病稳定期临床观察

目的观察沙美特罗治疗慢性阻塞性肺疾病（COPD）稳定期的临床疗效。方法将2009年1月～2010年12月就诊于我院的100，例处于稳定期的COPD患者随机分为两组，对照组给予常规治疗（吸氧、止咳化痰），治疗组在常规治疗基础上给予沙美特罗（50μy/250μg）粉剂吸入治疗。结果治疗组肺功能指标优于对照组，住院次数低于对照组。结论沙美特罗能有效治疗稳定期COPD。     

INSTRUCTIONS TO AUTHORS

<正>GENERAL INFORMATION World Journal of Gastrointestinal Surgery(World J Gastrointest Surg,WJGS,online ISSN 1948-9366,DOI:10.4240)is a peer-reviewed open access(OA)academic journal that aims to guide clinical practice and improve diagnostic and therapeutic skills of clinicians.     

《华西口腔医学杂志》载文被中国生物医学文献数据库收录期刊引用情况分析

目的　利用中国生物医学文献数据库(CBMDisc)分析《华西口腔医学杂志》所载文献的被引用情况,以客 观评价该刊的学术水平及期刊质量。方法　利用CBMDisc数据库的引文检索功能,统计1983~2001年《华西口腔 医学杂志》所载文献的被引用情况,分析引用年代、期刊分布、作者情况及地域分布。结果　1983~2001年CBMDisc 数据库来源期刊对《华西口腔医学杂志》所载文献的引用量共1 338次,呈逐年上升趋势,1998年以后增加尤为明 显;1998~2001年引用期刊共266种,引用频次较高的均为口腔医学类期刊;按第一作者计算,1998~2001年引用文 献的作者共计1 003位,分布于全国32个省市自治区,涉及448个不同单位,其中大专院校及其附属医院占 32·14%,地方医院或口腔病防治所占54·69%,军队或武警医院占10·71%,其他2·46%。结论　《华西口腔医学杂 志》所载文献质量较高,创新性好,引用量较大,是口腔医学杂志及口腔医学研究领域重要的信息源之一。     

INSTRUCTIONS TO AUTHORS

<正>GENERAL INFORMATIONWorld Journal of Gastrointestinal Surgery(World J Gastrointest Surg,WJGS,online ISSN 1948-9366,DOI:10.4240)is a peer-reviewed open access(OA)academic journal that aims to guide clinical practice and improve diagnostic and therapeutic skills of clinicians.     

2000-2001年国内医疗机构论文发表排名分析

目的：对2000—2001年前100名国内医疗机构论文发表和被引用情况进行分析，旨在为各医疗机构、科研部门提供参考。方泮：对2000-2001年前100名医疗机构发表论文及被引用情况数据进行了统计分析。结果：得出了发表论文及被引用论文数量、区域、机构及增长情况的相关数据，从这些数据可以看出我国医疗机构科研产出力及科研绩效都有了飞速的发展，尤其是军队医科院校附属医院增长势头迅猛。结论：医疗机构要保持相应的科研水平，必须有相对数量的文献增长。     

F1000对医学期刊被引情况的影响

目的:研究F1000在医学领域对文献被引用情况的影响。方法: 检索F1000数据库, 将2006-2008年第4年被F1000推荐的文献作为研究对象,在相同时间段选择发表后即可被推荐和从未被推荐的文献作为第一对照组和第二对照组,检索Web of Science,获得三组文献在发表后第1-6年的被引数量,研究三组文献在6年内的被引趋势;将所得数据重新组合为发表后前3年、后3年和总被引次数,利用SPSS 11.0软件对各组数据做配对t检验。结果：研究文献在发表后的第4年达到被引用峰值,而第一和第二对照组均在第3年达到被引用峰值;配对t检验显示,研究组文献与第一对照组和第二对照组之间被引用次数在发表后前3年未见显著差异,而在后3年存在显著差异,总被引次数也表现出显著差异。结论：F1000在医学领域对人们的引证行为产生了显著影响。