A correlation between shoulder laxity and interfering pain in competitive swimmers

STUDY OBJECTIVE: The "impact factor" published in Science Citation Index (SCI) is widely used in the scientific community to measure the relative importance of a medical journal. In contrast to all other indicators of academic growth in emergency medicine, impact factors for emergency medicine journals have remained low and unchanged since the inception of the specialty. We wished to investigate this incongruity. METHODS: We examined the methodology used to derive the SCI's journal impact factor. RESULTS: The impact factor for journals is defined mathematically as the number of times a journal is cited over a period of time (the numerator) divided by the number of articles published by that journal during the same period (the denominator). Citation counts are derived from examination of all references contained in a subset of journals known as "source" journals. No emergency medicine journals are included in this group. The only source of citations for emergency medicine journals is from journals outside of emergency medicine. This produces small numerators with relatively constant denominators, leading to low impact factors. CONCLUSION: The apparent failure of emergency medicine journals, as measured by the SCI impact factor, to keep pace with other indicators of academic development of the field is at least in part attributable to a methodologic bias inherent in the derivation of this factor.     

The impact factor--a reliable sciento-metric parameter?

With shortage of research funds and increasing competition for medical posts, performance indicators and control instruments are being looked for in order to be able to allot research funds and make professorial appointments in relation to scientific performance. Incomprehensibly for many, the impact factor has become the decisive scientometric indicator at German universities despite of substantial systematic limitations. The impact factor is derived from the journal citation reports. Its basis of calculation entails the following problems: the editorial board of the private Institute of Scientific Information (ISI) decides on whether a journal is to be classified as a source journal. The citation index of all journals is calculated from their citations alone. Crucial means of influencing the impact factor result from self-citations and citation groups in these source journals. Languages other than English and other than Latin alphabets are appreciably disadvantaged by the citation index, which is why for example despite its international significance the rapid development of the osteosynthesis technique in German speaking countries went unnoticed by British and American orthopedic surgeons and scientists. The articles on postgraduate training necessarily published by clinicians in the respective language of their country are not cited because the addresses of such publications do not engage in research. Clinical disciplines (especially highly specialized disciplines such as trauma and hand surgery) thus attain appreciably lower impact factors for their journals than basic disciplines and interdisciplinary clinical sectors which lead the ranking of journals. The period covered in calculating the impact factor is only 2 years. Very modern and widely disseminated organs of publication with a short information halflife are favored. From the 10 objectively most often cited and most important journals for the scientific society, only 2 are to be found amongst those with the highest impact factor. The impact front-runner from 1995 has a very low absolute number of citations. The impact factor provides limited statistical information on a journal in its special field. Using it for this purpose presupposes knowledge of rules, limitations and constraints. Its uncritical use as a general currency of science is fundamentally unscientific. In addition, this leads to the specialists in the field knowledge of the universities being disregarded in favor of a pseudo-objective parameter determined elsewhere. At all events, correction factors for the impact factor have to be applied in respect to the different disciplines. The faculties should reach agreement on relevant (also on German language) organs of publication. The impact factor is not suitable as an indicator of the research activity and the quality of a researcher or an institution. Besides careful human judgement and other classical methods of decision making, the Science Citation Index can contribute to the individual evaluation.     

Publication rates for the scientific sessions of the OTA. Orthopaedic Trauma Association

OBJECTIVES: To determine the publication rate of the scientific papers presented at the Orthopaedic Trauma Association (OTA) meetings from 1990 to 1995 inclusive. DESIGN: A Medline search was performed on abstracts presented at the OTA sessions from 1990 through 1995 using both authors and key text words within the OTA abstract. The publication rate for each meeting, journal of publication, and time to publication were tabulated. RESULTS: The publication rate for papers presented at the OTA meetings from 1990 through 1994 was 64 percent. This was significantly better than publication rates reported for American Academy of Orthopaedic Surgeons (AAOS) meetings in 1990 through 1992. The average time to publication was sixteen months. The most common journals in which papers derived from the OTA abstracts were published include the Journal of Orthopaedic Trauma (JOT), Journal of Bone and Joint Surgery combined volumes (JBJS). and Clinical Orthopaedics and Related Research (CORR). CONCLUSION: OTA meetings are an excellent source of high-quality information, which is generally subsequently published in peer-reviewed journals. The Journal of Orthopaedic Trauma is the single best source for information presented at the OTA meetings. Allowing more papers to be presented did not affect the publication rate for the meetings.     

Research productivity and impact of male and female psychologists.

Investigated whether the marked underrepresentation of females in lists of highly cited psychologists reflected differences in the quality or the quantity of research produced by males and females. Citation counts were established for 396 papers reporting dissertation research published by male and female psychologists in 14 journals between 1967 and 1972. Females attracted as many citations as males for dissertation research over the 6 yrs following publication. Although females had by 1978 published significantly fewer papers than males, there was no difference between sexes in the number of citations gained/published paper. However, more males than females were prolific researchers with heavy outputs of highly cited papers. Sex differences in productivity, impact, and recognition are discussed in the context of factors that facilitate or hinder research achievement. (20 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Factor impact and indexing in bibliographic databases: comparison of these quality criteria for the assessment of pharmaceutical journals

In spite of limits, the impact factor (IF) of Journal Citation Reports (JCR) of Science Citation Index (SCI) edited by the Institute for Scientific Information (ISI) is the most currently used bibliometric factor by scientists. Otherwise, bibliographic systems select and index scientific journals with their own quality criterion. In order to bring scientists and information professionals some new journal evaluation developments, we studied and compared pharmaceutical journal IF and the number of bibliographic systems in which they were indexed. We firstly have given our definition of pharmaceutical journal and then evaluated these journals by giving one point each time they were indexed in one of the five following bibliographic systems: Index Medicus/Medline, Excerpta Medica/Embase, International Pharmaceutical Abstracts, Chemical Abstracts, Current Contents. We then compared their results with IF. We selected 292 journals: 14.4% scored 5 points, 22.3% scored 4 points, 27.7% scored 3 points, 18.8% scored 2 points, 16.8% scored 1 point. We also showed that the more journals scored highly, the more they had chances of being taken by JCR. We studied the first hundred journals indexed by JCR and having the highly IF: 31, 40, 21, 6 and 2 journals were respectively indexed by 5, 4, 3, 2 and 1 bibliographic systems. We showed that there was a significant difference between the two classifications. So, we can say that people who take IF as the one and only journal quality criterion have in fact a very partial representation of the edition of scientific papers.     

Scientific journals and their authors' financial interests: a pilot study

BACKGROUND: The credibility of modern science is grounded on the perception of the objectivity of its scientists, but that credibility can be undermined by financial conflicts of interest. The US Public Health Service and the National Science Foundation issued regulations effective October 1, 1995, regarding the disclosure of financial interests in the submission of grant proposals. Several scientific journals have also established pertinent policies for authors and editors. The objectives of this study were: (1) to select a set of published articles and observe the degree to which a sample of authors hold a financial interest in areas related to their research that are reportable under current standards, and (2) to examine the hypothesis that significant numbers of authors of articles in life science and biomedical journals have verifiable financial interests that might be important for journal editors and readers to know. This paper measures the frequency of selected financial interests held among lead authors of certain types of scientific publications and assesses disclosure practices of authors and journals. METHOD: These objectives were applied to a pilot study of Massachusetts academic scientists who were cited as first or last author in at least one article published in 1992 in 14 leading journals of cell or molecular biology and medicine. We created a database of every original article published in 1992 by 14 leading life science and biomedical journals, supplemented by data sets consisting of (1) Massachusetts biotechnology firms, including their officers and scientific advisory boards, and (2) scientists listed as inventors on patents or patent applications registered with the World Intellectual Property Organization. RESULTS: We examined 1,105 university authors (first and last cited) from Massachusetts institutions whose 789 articles, published in 1992, appeared in 14 scientific and medical journals. Authors are said to 'possess a financial interest' if they are listed as inventors in a patent or patent application closely related to their published work; serve on a scientific advisory board of a biotechnology company; or are officers, directors, or major shareholders (beneficial owner of 10% or more of stock issued) in a firm that has commercial interests related to their research. Applying the criteria to the reference population of journals and Massachusetts academic authors, we measured the following frequencies for lead authors: 0.20 for serving on a scientific advisory board; 0.07 for being an officer, director, or major shareholder in a biotechnology firm, and 0.22 for being listed as an inventor in a related patent or patent application. The joint frequency of articles in the journals reviewed with a lead author that meets one of the three conditions is 0.34. CONCLUSIONS: One of every three articles in our sample has at least one Massachusetts-based author with a financial interest, and 15% of the authors in our sample have a financial interest relevant to one of their publications. For the year 1992, the rate of published voluntary disclosures of financial interest (as defined in our study) is virtually zero, but relatively few scientific and biomedical journals at that time required any such disclosure to journal editors and reviewers. Further research is needed to determine the effectiveness of mandatory disclosure requirements by some journals.     

我国冶金分析研究进展——基于《冶金分析》创刊40年(1981-2020)文献计量学分析

采用文献计量学方法分析顶级期刊载文信息,可以揭示该学科研究进展和发展趋势.《冶金分析》是我国冶金分析领域的重要期刊,通过对该刊影响因子变化、载文题录信息、关键词等指标开展计量学分析,进而探究我国冶金分析的研究进展和发展趋势.《冶金分析》共刊载6 569篇(从创刊到2020年9月)研究论文.作者的分析结果表明,该期刊拥有...     

Medical research in New South Wales 1993-1996 assessed by Medline publication capture

OBJECTIVES: To assess medical research publication output in New South Wales (NSW). DESIGN: Analysis of publication information from the Medline indexing database, 1993-1996 inclusive. SETTING: Teaching hospitals and affiliated universities and medical research institutes within NSW, the major sites for NSW medical science publications. MAJOR OUTCOME MEASURES: Cumulative number and location of Medline-identified publications; journal citation indices (impact factor and immediacy index). RESULTS: 8860 published articles were captured for the analysis period. Universities and hospitals accounted for most of the publications (n = 7755). A mean of 73.1% (range, 36%-100%) of all articles were published in overseas journals, and the rest in Australian journals. This average trend applied to most universities and teaching hospitals, whereas research institutes published almost exclusively in overseas journals. Average publication impact factor values for most universities and teaching hospitals were around the average value for all NSW publications (2.203). The range for teaching hospital publications was 1.000-2.823, but for the overseas-publishing medical research institutes it tended to be higher (2.480-5.423). Immediacy index data yielded similar findings. CONCLUSIONS: The universities and teaching hospitals account for most of the medical publications arising from NSW, and also those appearing in Australian journals. Thus, these sites provide the bulk of Australian medical practice end-user information. In contrast, the medical institutes concentrate on publishing in overseas journals with higher and quicker citation rates (higher impact factor and immediacy index).     

基于CNKI的X射线荧光光谱研究文献计量学分析

为客观掌握我国X射线荧光光谱(XRF)的研究进展,采用中国知网(CNKI)库内相关研究论文的年度分布、机构、基金、期刊来源等数据,结合Citespace的关键词分析方法,系统揭示了我国X射线荧光光谱的研究进展。结果表明:我国X射线荧光光谱研究处于快速发展阶段,每年论文发表数量呈指数增长;发表研究论文数量最多的是成都理工大学(69篇),总被引频次最高的机构是中国地质科学院国家地质实验测试中心(819次);目前X射线荧光光谱研究受到国家层面的基金支持力度不足;被引频次最高的论文第一作者是李国会(被引93次);发文量和论文被引率最高的期刊是《冶金分析》(300篇、占86.3%);总被引频次和篇均被引频次最高的期刊是《岩矿测试》(2541次、14.4次/篇);关键词分析结果表明,研究热点集中在样品制备、分析方法研究、检测应用;理论研究所占比例远远低于应用研究。所进行的研究对了解X射线荧光光谱的发展动态,推动相关研究工作的深化将产生重要的意义。     

125th anniversary of Revista Médica de Chile

The first issue of Revista Médica de Chile was printed in July, 1872. Since then, it has been published monthly, interrupted only for a few months during a Chilean civil war (1891). This medical journal has been devoted mainly to clinical topics in internal medicine, but currently it includes an increasing proportion of research papers in other biomedical and preclinical subjects. This journal is included in the most important international indexes of biomedical publications. Most issues cover also medical education, public health, the ethics of clinical and experimental research, medical administration and the history of medicine. The evolution of medicine in Chile along 125 years is clearly reflected in the contents of this journal. Revista Médica de Chile is one of the oldest medical journals in the world, particularly among those published in Spanish, and a top ranking biomedical publication in Chile.     

Bibliometric index

The Institute of Scientific information has edited an index to evaluate the diffusion of scientific articles. It is based on the fact that the more an article is cited as a reference in other articles, the more it is considered to be important, and the higher the coefficient attributed to the journal in which it was originally published. The impact factor takes into account the average number of times which a journal is mentioned for recent articles published in a given year. This index is an attempt to quantify the notoriety of scientific journal for all scientific medical specialties.     

Linguistic Isolation of American Psychology.

Comments on the original article "Linguistic isolation of American social psychology: A comparative study of journal citations," by L. J. Finison and C. L. Whittemore (see record 1990-57169-001). In this comment, the author makes two remarks relevant to the linguistic isolation of American psychology in general. First, the low citation rate to foreign language publications in American psychology journals, such as that found by Finison and Whittemore for social psychology journals, does not necessarily mean that almost every piece of research published in psychology is contributed by an American psychologist, or that American psychologists ignore the work of foreign researchers. Second, another factor that may explain partially, and at least in some areas of psychology, the high English-language citation rate in psychology journals is the translation of the work by foreign psychologists into the English language. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

2014年云南金属材料与加工年评

根据2014年云南省材料科研工作者所发表的文献,对2014年度云南省黑色金属、稀贵金属、有色金属材料的科研与技术进行了评价。     

2013年云南金属材料与加工年评

根据2013年云南省材料科研工作者所发表的文献,对2013年度云南省黑色金属、有色金属、稀贵金属材料的科研与技术进行了评价.     

Group housing in pig farming

Bibliometric methods have been used to study the distribution of research literature on disc surgery between neurological and orthopaedic departments globally and within each of the Nordic countries. Worldwide, the total number of indexed papers was found to be almost twice as great for neurosurgical as for orthopedic institutions. Though figures for the Nordic countries were lower, they manifested the same trend, except those for Sweden where orthopaedic surgeons appear to do more research than neurosurgeons in this field. Moreover, it was found that a greater proportion of neurosurgeons than orthopaedic surgeons had published papers in journals outside their own field (29 vs 9 per cent respectively), and that 14 per cent of the neurosurgical reports had been published in orthopedic journals, but none of the orthopedic reports had been published in neurosurgical journals. Finally, scrutiny of the reference literature cited in randomly selected samples of papers from neurosurgical and orthopedic departments showed 22 per cent of the references in neurosurgical papers to be to orthopaedic journals or textbooks, but only 4 per cent of those in orthopedic papers to be to neurosurgical texts. The possible implications of these findings are discussed in the article, as are the methodological sources of error.     

Publication patterns of the American Society of Pediatric Neurosurgeons. Is there support among members for peer-reviewed pediatric neurosurgical journals?

The American Society of Pediatric Neurosurgeons (ASPN) has expressed a commitment to have all of its members' qualifying research efforts published in peer-reviewed pediatric neurosurgical journals such as Pediatric Neurosurgery. To test this commitment, citations from January 1985 through December 1994 were analyzed for all 76 current members of the ASPN. The citations were divided into those of general or adult neurosurgical interest, and those of pediatric neurosurgical interest based upon title, key words, and/or abstract. Each pediatric neurosurgical citation was further classified by topic, and by the type of journal in which it appeared (pediatric neurosurgical, general or adult neurosurgical, and other pediatric or adult journal, subspecialty journal, or basic science journal). A total of 1,887 individual author citations were identified during the study period; of these, 1,586 citations (84%) were classified as pediatric neurosurgical citations. These included 1,391 citations from peer-reviewed publications and 195 citations from Concepts in Pediatric Neurosurgery. As a society, the ASPN published only one third of its citations in peer-reviewed pediatric neurosurgery journals; the remainder were cited in general neurosurgical or other journals. Even when only citations from neurosurgical journals (in which pediatric neurosurgeons were more likely to be primary authors and therefore to have more control over the journal of publication) were analyzed, less than 50% of citations appeared in peer-reviewed pediatric neurosurgery journals. Nearly three quarters of ASPN members failed to provide even a modest commitment--publishing 51% or more of their pediatric citations in peer-reviewed pediatric neurosurgical journals. When the analysis was again limited to only those citations published in neurosurgery journals, over half of the members failed this '51% rule'. These results suggest the need for a firmer commitment from ASPN members to publish in peer-reviewed pediatric neurosurgery journals.     

2012年云南金属材料与加工年评

根据2012年云南材料科研工作者所发表的文献,对2012年度云南省黑色金属、有色金属、稀贵金属和陶瓷材料等的科研及技术进行了评述。     

2013年云南冶金年评

依据2013年云南冶金科技工作者发表的文献资料,对该年度云南黑色金属冶金、有色金属冶金、半金属及稀有金属冶金和贵金属生产、科研及技术进行了评述.