首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
Background: Romania is a low‐income country of 22 million people and, currently, information regarding mental health research is limited. Romania is one of the last countries in eastern Europe not to have its own bibliographic biomedical database. Aim: To assess the content and quality of Romanian psychiatric research activity over time. Method: embase (1980 to April 2008), medline (1950 to April 2008) and Psyc INFO (1806 to April 2008) were systematically searched for psychiatric articles originating from Romania. The sample from Psyc INFO was described. Results: Psyc INFO was by far the best source of Romanian mental health literature with a considerable increase in the publication activity since 2000 (Psyc INFO identified 3236 hits, medline 549, embase 139). Most papers are in English, but a sizeable minority are in Romanian (30%), French (4%) or Hungarian (4%). The main topics of interest are cognitive processes, creativity, schizophrenia and cognitive development and stress and are, according to Psyc INFO’s indexing, ‘empirical studies’. Seventeen randomised trials were identified with all studies after 2000 being sponsored by industry. Conclusions: Surprisingly, and not in keeping with other studies of the literature of neighbouring countries, Psyc INFO is the major source of psychiatric bibliographic records of this region. There are signs of a resurgence of research activity in Romania and as the number of local mental health workers increases we can expect more output. Industry is now funding evaluative studies in Romania. As everywhere, but perhaps more acutely in situations of severely limited research support, there is a difficult balance to be struck between benefiting support and losing independence.  相似文献   

2.
The paper presents a statistical and subjective review of the journal articles on various aspects of library and information services in Pakistan. Only the articles published in the journals outside Pakistan are included. Articles are selected from four abstracting services, i.e. LISA, ISA, LSA, and ERIC. Authorship characteristics of 97 articles are analysed and compared with the previous studies of LIS periodicals. Authorship details include collaboration, occupation, affiliation, and the author's country. Other publication details of the articles include year, language, journal, and the country of publication. The findings show that library science teachers write more than the other professionals and the most popular subject is the library and information science education. Library science faculty at Karachi University contributes more articles in international journals. The articles are mostly published in English language journals and in English speaking countries, i.e. UK and USA.International Information and Library Reviewpublished more articles on this topic. Problems in library research in Pakistan are discussed and recommendations are made. A brief review of the articles is given according to 16 major subjects. A bibliography of the articles reviewed is also compiled.  相似文献   

3.
Over the years, the number of journals indexed in Scopus has increased, although it varies significantly between countries. The increasing proportion of international journals of a country provides new venues for papers from that country to be seen by other researchers worldwide. In this work, we evaluate the relationship of a country’s scientific performance or publication success with both its journals’ quantity and quality. The specific objective of the study is to identify the relationship between the country’s publication success and the quantity and quality of those country’s journals indexed in Scopus during 2005–2014. The publication success of 102 individual countries, measured by their scientific productivity, impact and collaboration indicators, the quantity of country’s Scopus-indexed journals in 2014 (a total of 22,581 journals) as well as the quantity of its journals were investigated. Scopus-indexed journals are predominantly from Western Europe (48.9%) and North America (27.7%), with the United States and the United Kingdom dominate with a total 51%. The contribution from the peripheral countries is comparatively small, however there are a good number of contributions from the South-East Asian countries. Estonia is the fastest growing country in terms of having indexed journals in Scopus, following by Iran and Malaysia. Among the studied indices, it was found that publication success (total publications and total citations) of 102 countries are strongly correlated with quantity (number of indexed journals and number of documents published in indexed journals) and quality (citations per paper, SJR, h-index, CiteScore and SNIP) indicators of country’s journals. We can conclude that the scientific productivity of a country depend critically on the number of journals indexed from that country in citation databases. The study provides a context with which the relative success of publications can be assessed, yielding new insights into the scientific impact of individual countries and the performance of journals that they published.  相似文献   

4.
以2000~2009年间Web of Science数据库收录的1542篇电子政务研究领域的论文为研究对象,采取文献计量学的方法,对论文的年度、期刊、国家/地区、语种、研究机构、作者、关键词以及学科分布及其影响等方面进行分析,从定量和定性的角度揭示国际上电子政务的研究热点、分布格局和发展趋势,以期加深我国对国际电子政务研究的了解,进而为提高我国电子政务研究的步伐提供可借鉴的参考。  相似文献   

5.
Background: Many medical schools require a student thesis before graduation. Publishing results in a peer‐reviewed journal could be an indicator of scientific value and acceptability by the scientific community. The publication pattern of theses published by medical students in Peru is unknown. The aim of this study was to assess the characteristics and publication pattern of theses in biomedical‐indexed journals conducted by medical students in a university with the highest research output in Peru. Methods: Data from registered theses between 2000 and 2003 were obtained from the university library. Publication of theses in biomedical journals was assessed in 2008 by a search strategy using PubMed, Google Scholar, LILACS, LIPECS and SciELO. Results: Four hundred and eighty‐two medical theses were registered between 2000 and 2003; 85 (17.6%) were published in biomedical‐indexed journals. Of the published theses, 28 (5.8%) were published in MEDLINE‐indexed journals, 55 (11.4%) in SciELO‐indexed journals, 61 (12.6%) in LILACS‐indexed journals and 68 (14.1%) in LIPECS‐indexed journals. Most of the published theses (80%) were in Spanish and published in Peruvian journals; and 17 theses (20%) were published in foreign journals (all of them indexed in MEDLINE). In addition, 37 (43.5%) belong primarily to internal medicine, and 24 (28.2%) belong primarily to infectious diseases. Medical students were first authors in 71 (83.5%) of the articles. Conclusion: In this study, most of the published theses were in Spanish, published in local journals and indexed in LIPECS. The percentage of published theses in biomedical journals at this university is comparable with others coming from developed countries.  相似文献   

6.
This study examined the development of English-language journals indexed by the database of Journal Citation Reports (JCR) and owned by six non-English-speaking countries (China, Japan, South Korea, Taiwan, Italy, and Spain) and four countries where English is an official national language (Australia, Canada, India, and Singapore) over a 21-year period. Four types of journals were identified based on changes in journal impact factor (JIF) and rank percentage per year. The results suggest that “growth” journals with trends of increasing JIF and rank percentage outnumbered other types of journals for each country and were not concentrated in particular subject categories. Over half of the growth journals in eight countries were positioned at Q3 and Q4 levels. No significant differences in the average age of growth journals were identified between countries. Although China possessed the highest percentage of growth journals, its journals with the highest growth were at the Q4 level. This study concluded that China and South Korea should monitor their development of JCR journals due to their faster improvement in the average annual rank percentage per growth journal. One limitation is that a considerable proportion of junior English journals were not analyzed in this study.  相似文献   

7.
I surveyed the social sciences journal literature for the decade period 1987-1996 looking for papers with authors, or at least one co-author giving an address from an institution in Turkey. The number of such papers had nearly tripled from 1987 to 1996. I found that the papers are scattered into 341 journals and almost one third of all papers went to nine journals, each of which contained an average of a least one Turkish paper per year. Only two of these journals, on archaeology and anthropology, happened to be of high citation impact.Psychology and psychiatry, combined with business and economics are found to be the most productive subjects accounting for about half of the publication output. A vast majority of the papers were articles in English, and in an average article contained about 24 bibliographic references. The number of Turkish papers in nine major journals are somewhat correlated with their availability in local libraries. The number of co-authors per paper had nearly doubled over the period surveyed, reflecting increased interaction among scientists. About half of the authors were affiliated with three universities in Ankara and Istanbul, indicating a heavier concentration of social sciences research in the main metropoles of the country.  相似文献   

8.
[目的/意义]探讨影响altmetrics覆盖率的因素,为altmetrics在学术评价中的合理使用奠定基础。[方法/过程]基于Web of Science、Altmetric.com以及Mendeley,以5个学科1996-2015年间发表的所有期刊论文为分析对象,探讨学科领域、出版年份、来源期刊、国别、语种5个因素对altmetrics覆盖率的影响。[结果/结论]不同altmetrics指标的覆盖率不同,Mendeley覆盖率最高,Twitter其次,而大多数指标覆盖率很低;在将altmetrics应用于期刊评价时,有必要合理鉴别和排除期刊推广策略导致的高覆盖率现象;以上5个因素均会导致期刊论文的altmetrics覆盖率差异,因此在应用altmetrics时,需要考虑到被评价对象的属性特征,必要时考虑altmetrics在这些影响因素上的标准化。  相似文献   

9.
中文农业学术期刊刊登英文文章的调查与分析   总被引:1,自引:0,他引:1  
2001年以来,刊登英文文章的农业期刊数每年都有50种以上;但问卷调查结果显示,62.98%的读者认为中文农业学术期刊上"没有必要"刊登英文文章,71.83%的读者表示"基本或从来不阅读"这类文章,表示"偶尔阅读"和"经常阅读"者只分别占23.20%和4.97%.国际检索系统收录情况查询结果表明,是否刊登英文文章以及刊登英文文章的年限和数量均与中文农业学术期刊进入国际检索系统没有必然的联系.这些调研结果说明,中文农业期刊刊登英文文章的价值不大.  相似文献   

10.
检索了MEDLINE光盘数据库1991—2009年收录的纳米技术对环境和人类健康影响的文献,利用文献计量学方法对其发表时间、国家、类型、期刊种类、主题词、副主题词等的分布进行了统计分析,旨在为科研人员提供参考。  相似文献   

11.
This study reports how internationalization of academic knowledge is reflected in the language choice of Korean academic journals across disciplines and examines perceptions and practices of eighty two faculty from various disciplines at three Korean universities concerning publishing in English journals. The results indicate that natural science has the highest percentage of English-medium journals whereas those in humanities and social science predominantly use Korean as a medium of publication. Similar disciplinary patterns are observed in the responses to survey questions about frequency of publication as well as desire and preference for publishing papers in English. The biggest motivation for Korean scholars to publish in English was the desire to reach global scholarly communities. Implications of these findings are discussed.  相似文献   

12.
Objective:There are no existing validated search filters for the group of 37 Organisation for Economic Co-operation and Development (OECD) countries. This study describes how information specialists from the United Kingdom''s National Institute for Health and Care Excellence (NICE) developed and evaluated novel OECD countries’ geographic search filters for MEDLINE and Embase (Ovid) to improve literature search effectiveness for evidence about OECD countries.Methods:We created the draft filters using an alternative approach to standard filter construction. They are composed entirely of geographic subject headings and are designed to retain OECD country evidence by excluding non-OECD country evidence using the NOT Boolean operator. To evaluate the draft filters’ effectiveness, we used MEDLINE and Embase literature searches for three NICE guidelines that retrieved >5,000 search results. A 10% sample of the excluded references was screened to check that OECD country evidence was not inadvertently excluded.Results:The draft MEDLINE filter reduced results for each NICE guideline by 9.5% to 12.9%. In Embase, search results were reduced by 10.7% to 14%. Of the sample references, 7 of 910 (0.8%) were excluded inadvertently. These references were from a guideline about looked-after minors that concerns both OECD and non-OECD countries.Conclusion:The draft filters look promising—they reduced search result volumes while retaining most OECD country evidence from MEDLINE and Embase. However, we advise caution when using them in topics about both non-OECD and OECD countries. We have created final versions of the search filters and will validate them in a future study.  相似文献   

13.
This article provides a brief history of the development of the MEDLINE database and its huge impact within the UK, from its inception to the present time. The origins of MEDLINE can be traced back to a collection of books in the US Surgeon General's Office during the American Civil War and John Shaw Billings' decision, during 1867, to make this Library as complete as possible. From these beginnings, Index Medicus was developed in the early years of the 20th century, and electronic versions of the database began with the computerized on-demand search service MEDLARS in 1964 and then via CD-ROM and Internet Grateful Med to the web-based and free-to-all service, PubMed, in 1997. The response to PubMed was immediate and startling with usage increasing from 7 million searches per annum in 1996 to 400 million searches per annum in 2001 and the service continues to improve. MEDLINE providers are now offering mapping of natural language queries to the sophisticated indexing vocabulary (Medical Subject Headings, MeSH) and the provision of specific filters for different types of publication to improve searching efficiency, as well as links to full-text versions of the papers where available. The next steps are likely to involve an increased blurring of database and full-text boundaries, incorporating seamless access to the best available evidence within MEDLINE and a wide range of other information resources within a single search and to an increasing amount of full-text via various open-archive initiatives. As ever, the US National Library of Medicine is in the vanguard of research and further applications of its MEDLINE database for users within the UK will be awaited with great interest.  相似文献   

14.
OBJECTIVE: A study was conducted to determine if bibliographic retrieval performed by French-speaking end users is impaired by English language interfaces. The American database MEDLINE on CD-ROM was used as a model. METHODS: A survey of self-administered questionnaires was performed at two libraries of Victor Segalen Bordeaux 2 University, during a two-month period in 1997. Three study groups were constituted: MEDLINE / Ovid end users, MEDLINE / Ovid librarian-mediated users, and Pascal, a French bibliographic database, end users. RESULTS: Among 191 respondents, only 22% thought English was an obstacle to their bibliographic retrieval. However, the research software was generally underused and the quality of the retrieval weak. The differences were statistically significant between users trained by librarians and the self-trained group, the former performing better. CONCLUSION: Special efforts need to be made to develop curriculum training programs for computerized bibliographic retrieval in medical schools, regardless of the native language of the student.  相似文献   

15.
Language distribution in scientific communication reflects the influence of different languages on science in global perspective. The study, based on over 450 thousand scientific tweets of all publications indexed by Scopus in June 2015, reveals the language distribution in informal scientific communication. Moreover, this result is compared with the language distribution in formal scientific communication reflected in scientific publications. Results show: (1) The language of scientific tweets is concentrated in English (91%), Japanese (2.4%) and Spanish (1.7%), while the language of scientific publications is concentrated in English (90.6%), Chinese (5%) and German (1.1%). (2) Both scientific tweets and scientific publications present disciplinary differences in language distribution, reflecting the different amount of attention that authors of different languages have on certain disciplines. (3) Except Saudi Arabia, investigated countries all over the world, regardless of whether their native language is English or not, all have English scientific tweets in the dominant position. For the vast majority of these countries, the native language scientific tweets only rank the second position. (4) Overall, 26% of tweeters use more than one language to tweet scientific products, while 49% of scientific tweeters tweet everything in English only. The results indicate that English has undoubtedly become the lingua franca in informal scientific communication.  相似文献   

16.
17.
对MEDLINE收录山东2000—2009年发表的文献书目数据进行下载,并对文献年代分布、作者地区分布、期刊分布、论文发表国家、语种和文献平均作者数进行统计分析,结果发现山东近十年发表且被MEDLINE收录的论文数量增长较快,科研能力不断提高,但是地区分布差异较大。  相似文献   

18.
对MEDLINE数据库收录的中文生物医学相关期刊的来源指标进行了分析,并与期刊所在学科的各指标的平均值作了对比。结果发现,MEDLINE收录的中文医学期刊文献量不大,平均每刊刊载约260篇,每篇论文平均有5个作者、17条参考文献,文献的引用半衰期为6.175年。MEDLINE收录的中文医学期刊并不侧重海外论文的发表,似乎能吸引更多的基金论文。  相似文献   

19.
Non‐English languages are widely used, but their roles in scholarly communication are relatively under‐explored. By using Web of Science's Science Citation Index Expanded (SCIE, 1900–2015), Social Sciences Citation Index (SSCI, 1900–2015), and Arts and Humanities Citation Index (A&HCI, 1975–2015), this study probes the patterns and dynamics of non‐English papers by year, citation index, and discipline using bibliometric analysis. The analyses show that English is increasingly being used as the dominating language from natural sciences and social sciences to arts and humanities. Around 97% of the papers in SCIE, 95% of the papers in SSCI, and 73% of the papers in A&HCI during the past decade were in English. However, other languages such as German and French were also used as important academic languages in sciences and social sciences during the first half of the 20th century, 1970s, and 1980s. Unlike natural science and social science disciplines, non‐English papers have consistently played important role in arts and humanities disciplines from the beginning of 1975. Although the shares of non‐English papers in SCIE and SSCI databases have been limited during the past decade, a large number of non‐English papers can be found in some applied disciplines of sciences and social sciences.  相似文献   

20.
如何提高英文版科技期刊的被引频次和影响因子   总被引:3,自引:0,他引:3  
蔡斐 《编辑学报》2005,17(2):133-134
从总被引频次和影响因子2方面分析我国英文版科技期刊的引用指标的现状和引用指标偏低的原因.提出了提高英文版科技期刊被引频次和影响因子的措施:1)注重期刊的国内外发行工作;2)通过建立英文网站及加入国内外知名数据库,提高文章的点击率及浏览量;3)请专家把语言关.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号