目的:分析中国学者在文献库中收录的精神卫生领域研究内容与新型冠状病毒肺炎相关的文献及其特征。方法:以Web of Science数据资源平台为检索源检索英文文章,以中国生物医学文献服务系统(SinoMed)为检索源检索中文文献,检索时间为2020年...目的:分析中国学者在文献库中收录的精神卫生领域研究内容与新型冠状病毒肺炎相关的文献及其特征。方法:以Web of Science数据资源平台为检索源检索英文文章,以中国生物医学文献服务系统(SinoMed)为检索源检索中文文献,检索时间为2020年1月-2020年10月,通过文献计量学方法分析发表文献的数量、学科方向、出版物名称、作者单位及被引情况等。结果:Web of Science数据库检索到中国学者参与发表的与新型冠状病毒肺炎相关的英文文献共7651篇,涉及精神卫生领域的共569篇,占比7.4%;SinoMed库检索到中文文献共13396篇,涉及精神卫生领域的文献共901篇,占比6.7%。结论:中国学者在文献库中精神卫生领域发表的与新型冠状病毒肺炎相关的英文和中文文章的比例接近,所发表文章主要特征契合新型冠状病毒肺炎防控各环节的精神卫生工作。展开更多
AIM: To determine whether the outcomes of laparoscopic fenestration (LF) were superior to open fenestration (OF) for congenital liver cysts.METHODS: Comparative studies published between January 1991 and May 2010 on M...AIM: To determine whether the outcomes of laparoscopic fenestration (LF) were superior to open fenestration (OF) for congenital liver cysts.METHODS: Comparative studies published between January 1991 and May 2010 on Medline (Ovid),Emsco,PubMed,Science Direct;Cochrane Reviews;CNKI;Chinese Biomedical Database,VIP and other electronic databases were searched.Randomized controlled trials (RCTs) and retrospective case-control studies on the management of congenital hepatic cysts were collected according to the pre-determined eligibility criteria to establish a literature database.Retrieval was ended in May 2010.Meta-analysis was performed using RevMan 5.0 software (Cochrane library).RESULTS: Nine retrospective case-control studies involving 657 patients,comparing LF with OF were included for the final pooled analysis.The meta-analysis results showed less operative time [mean difference (MD): -28.76,95% CI: -31.03 to 26.49,P < 0.00001];shorter hospital stay (MD: -3.35,95% CI: -4.46 to -2.24,P < 0.00001);less intraoperative blood loss (MD: -40.18,95% CI: -52.54 to -27.82,P < 0.00001);earlier return to regular diet (MD: -29.19,95% CI: -30.65 to -27.72,P < 0.00001) and activities after operation (MD: -21.85,95% CI: -31.18 to -12.51,P < 0.0001) in LF group;there was no significant difference between the two groups in postoperative complications (odds ratio: 0.99,95% CI: 0.41 to 2.38,P = 0.98) and cysts recurrence rates.CONCLUSION: The short-term outcomes of LF for patients with congenital hepatic cysts were superior to open approach,but its long-term outcomes should be verified by further RCTs and extended follow-up.展开更多
This paper＇s goal is to help accounting academics better navigate the editorial review process to increase the likelihood of a manuscript＇s publication. The authors draw on their years of experience as active schola...This paper＇s goal is to help accounting academics better navigate the editorial review process to increase the likelihood of a manuscript＇s publication. The authors draw on their years of experience as active scholars, reviewers, and editors of academic journals to provide practical insights on manuscript preparation, submission, and revision. Specific topics include （1） selecting an appropriate journal, （2） choosing an appropriate strategy to address a research question, （3） organizing a paper＇s structure including the abstract, motivation section, literature review, implications and conclusions, （4） writing style and （5） revising a manuscript.展开更多
Objective： The aim of the study was to conduct a systematic review of the literature evaluating survivin expres- sion in pancreatic carcinoma as a prognostic indicator. Methods： The relevant literatures were searche...Objective： The aim of the study was to conduct a systematic review of the literature evaluating survivin expres- sion in pancreatic carcinoma as a prognostic indicator. Methods： The relevant literatures were searched using PubMed, EMBASE, and Chinese Biomedicine Databases. A meta-analysis of the association between survivin expression and overall survival in patients with pancreatic cancer was performed. Studies were pooled and summary hazard ratios （HRs） were calculated. Subgroup analysis according to the location of survivin expression was also performed. Results： Seven eligible studies with a total of 448 patients were included in this study. Combined HR suggested that survivin expression had an unfavorable impact on survival of pancreatic cancer patients （HR = 1.65, 95% CI： 1.02-2.68）. When stratified according to the location of survivin expression, the combined HR showed that expression in the cytoplasm was significantly associated with poor prog- nosis of pancreatic cancer patients （HR = 2.09, 95% CI： 1.29-3.40）. In contrast, survivin expression in the nucleus was not significantly associated with poor prognosis （HR = 0.83, 95% CI： 0.24-2.81）, and the heterogeneity was highly significant （I2 = 87.2%, P = 0.005）. Conclusien： Survivin expression was associated with a poor prognosis in patients with pancreatic cancer. Cytoplasmic expression of survivin may be a prognostic factor for pancreatic cancer patients. Based on the current obtained data, there was no evidence that survivin expression in the nucleus had a significant impact on patients＇ overall survival.展开更多
Based on the web of Science database, such as the countries, research institutes, core authors, key journals and the distribution of research fields, the number of corporate social responsibility（CSR）, articles publ...Based on the web of Science database, such as the countries, research institutes, core authors, key journals and the distribution of research fields, the number of corporate social responsibility（CSR）, articles published during 20 years （1994 to 2013 ） in the world were analyzed by bibliometric method. The total of 1,544 articles and their top 20 countries, research institutes, core authors, key journals and research fields for the literature types, the number of annual articles was retrieved globally. Analyses of status and trends of CSR researches in the world based on bibliometrics were performed for providing information to CSR researchers and decision makers.展开更多
This paper details the prospects for a civil nuclear power station in Estonia. Due to its climate change commitments, Estonia needs a new source of electricity provision. There is little academic literature on Estonia...This paper details the prospects for a civil nuclear power station in Estonia. Due to its climate change commitments, Estonia needs a new source of electricity provision. There is little academic literature on Estonia, and this research builds upon previous work but is more detailed in its analysis with primary data included in the form of interviews with Estonian energy industry experts. All the conditions that have led to nuclear energy being considered as an option are assessed, along with why it represents the most strategic path for Estonia in terms of electricity provision. Through the interview analysis a framework is established and advanced for the successful initiation of a national nuclear power plant project. This research is therefore of high value for small EU countries who intend to consider nuclear energy as an option in their energy mix or have more advanced plans to develop a nuclear program.展开更多
Credit-assignment schemas are widely applied by providing fixed or flexible credit distribution formulas to evaluate the contributions of coauthors of a scientific publication. In this paper, we propose an approach na...Credit-assignment schemas are widely applied by providing fixed or flexible credit distribution formulas to evaluate the contributions of coauthors of a scientific publication. In this paper, we propose an approach named First and Others （F＆O） counting. By introducing a tuning parameter a and a weight β, two new properties are obtained： （1） flexible assignment of credits by modifying the formula （with the change of a） and applying preference to the individual author by adjusting the weights （with the change ofβ）, and （2） calculation of the credits by separating the formula for the first author from others. With formula separation, the credit of the second author shows an inflection point according to the change ofa. The developed theorems and proofs concerning the modification of a and fl reveal new properties and complement the base theory for informetrics. The F＆O schema is also adapted when considering the policy of＇first-corresponding-author-emphasis＇. Through a comparative analysis using a set of empirical data from the fields of chemistry, medicine, psychology, and the Harvard survey data, the performance of the F＆O approach is compared with those of other methods to demonstrate its benefits by the criteria of lack of fit and coefficient of determination.展开更多
文摘目的:分析中国学者在文献库中收录的精神卫生领域研究内容与新型冠状病毒肺炎相关的文献及其特征。方法:以Web of Science数据资源平台为检索源检索英文文章,以中国生物医学文献服务系统(SinoMed)为检索源检索中文文献,检索时间为2020年1月-2020年10月,通过文献计量学方法分析发表文献的数量、学科方向、出版物名称、作者单位及被引情况等。结果:Web of Science数据库检索到中国学者参与发表的与新型冠状病毒肺炎相关的英文文献共7651篇,涉及精神卫生领域的共569篇,占比7.4%;SinoMed库检索到中文文献共13396篇,涉及精神卫生领域的文献共901篇,占比6.7%。结论:中国学者在文献库中精神卫生领域发表的与新型冠状病毒肺炎相关的英文和中文文章的比例接近,所发表文章主要特征契合新型冠状病毒肺炎防控各环节的精神卫生工作。
文摘AIM: To determine whether the outcomes of laparoscopic fenestration (LF) were superior to open fenestration (OF) for congenital liver cysts.METHODS: Comparative studies published between January 1991 and May 2010 on Medline (Ovid),Emsco,PubMed,Science Direct;Cochrane Reviews;CNKI;Chinese Biomedical Database,VIP and other electronic databases were searched.Randomized controlled trials (RCTs) and retrospective case-control studies on the management of congenital hepatic cysts were collected according to the pre-determined eligibility criteria to establish a literature database.Retrieval was ended in May 2010.Meta-analysis was performed using RevMan 5.0 software (Cochrane library).RESULTS: Nine retrospective case-control studies involving 657 patients,comparing LF with OF were included for the final pooled analysis.The meta-analysis results showed less operative time [mean difference (MD): -28.76,95% CI: -31.03 to 26.49,P < 0.00001];shorter hospital stay (MD: -3.35,95% CI: -4.46 to -2.24,P < 0.00001);less intraoperative blood loss (MD: -40.18,95% CI: -52.54 to -27.82,P < 0.00001);earlier return to regular diet (MD: -29.19,95% CI: -30.65 to -27.72,P < 0.00001) and activities after operation (MD: -21.85,95% CI: -31.18 to -12.51,P < 0.0001) in LF group;there was no significant difference between the two groups in postoperative complications (odds ratio: 0.99,95% CI: 0.41 to 2.38,P = 0.98) and cysts recurrence rates.CONCLUSION: The short-term outcomes of LF for patients with congenital hepatic cysts were superior to open approach,but its long-term outcomes should be verified by further RCTs and extended follow-up.
文摘This paper＇s goal is to help accounting academics better navigate the editorial review process to increase the likelihood of a manuscript＇s publication. The authors draw on their years of experience as active scholars, reviewers, and editors of academic journals to provide practical insights on manuscript preparation, submission, and revision. Specific topics include （1） selecting an appropriate journal, （2） choosing an appropriate strategy to address a research question, （3） organizing a paper＇s structure including the abstract, motivation section, literature review, implications and conclusions, （4） writing style and （5） revising a manuscript.
文摘Objective： The aim of the study was to conduct a systematic review of the literature evaluating survivin expres- sion in pancreatic carcinoma as a prognostic indicator. Methods： The relevant literatures were searched using PubMed, EMBASE, and Chinese Biomedicine Databases. A meta-analysis of the association between survivin expression and overall survival in patients with pancreatic cancer was performed. Studies were pooled and summary hazard ratios （HRs） were calculated. Subgroup analysis according to the location of survivin expression was also performed. Results： Seven eligible studies with a total of 448 patients were included in this study. Combined HR suggested that survivin expression had an unfavorable impact on survival of pancreatic cancer patients （HR = 1.65, 95% CI： 1.02-2.68）. When stratified according to the location of survivin expression, the combined HR showed that expression in the cytoplasm was significantly associated with poor prog- nosis of pancreatic cancer patients （HR = 2.09, 95% CI： 1.29-3.40）. In contrast, survivin expression in the nucleus was not significantly associated with poor prognosis （HR = 0.83, 95% CI： 0.24-2.81）, and the heterogeneity was highly significant （I2 = 87.2%, P = 0.005）. Conclusien： Survivin expression was associated with a poor prognosis in patients with pancreatic cancer. Cytoplasmic expression of survivin may be a prognostic factor for pancreatic cancer patients. Based on the current obtained data, there was no evidence that survivin expression in the nucleus had a significant impact on patients＇ overall survival.
基金the National Natural Science Foundation of China （NSFC-AF 31361130342）.
文摘Based on the web of Science database, such as the countries, research institutes, core authors, key journals and the distribution of research fields, the number of corporate social responsibility（CSR）, articles published during 20 years （1994 to 2013 ） in the world were analyzed by bibliometric method. The total of 1,544 articles and their top 20 countries, research institutes, core authors, key journals and research fields for the literature types, the number of annual articles was retrieved globally. Analyses of status and trends of CSR researches in the world based on bibliometrics were performed for providing information to CSR researchers and decision makers.
文摘This paper details the prospects for a civil nuclear power station in Estonia. Due to its climate change commitments, Estonia needs a new source of electricity provision. There is little academic literature on Estonia, and this research builds upon previous work but is more detailed in its analysis with primary data included in the form of interviews with Estonian energy industry experts. All the conditions that have led to nuclear energy being considered as an option are assessed, along with why it represents the most strategic path for Estonia in terms of electricity provision. Through the interview analysis a framework is established and advanced for the successful initiation of a national nuclear power plant project. This research is therefore of high value for small EU countries who intend to consider nuclear energy as an option in their energy mix or have more advanced plans to develop a nuclear program.
基金Project supported by the Brazilian National Council for Scientific and Technological Development(No.304903/2013-2)
文摘Credit-assignment schemas are widely applied by providing fixed or flexible credit distribution formulas to evaluate the contributions of coauthors of a scientific publication. In this paper, we propose an approach named First and Others （F＆O） counting. By introducing a tuning parameter a and a weight β, two new properties are obtained： （1） flexible assignment of credits by modifying the formula （with the change of a） and applying preference to the individual author by adjusting the weights （with the change ofβ）, and （2） calculation of the credits by separating the formula for the first author from others. With formula separation, the credit of the second author shows an inflection point according to the change ofa. The developed theorems and proofs concerning the modification of a and fl reveal new properties and complement the base theory for informetrics. The F＆O schema is also adapted when considering the policy of＇first-corresponding-author-emphasis＇. Through a comparative analysis using a set of empirical data from the fields of chemistry, medicine, psychology, and the Harvard survey data, the performance of the F＆O approach is compared with those of other methods to demonstrate its benefits by the criteria of lack of fit and coefficient of determination.
