Continuing problems with gray literature*

Frequent gatherings, such as those on coastal management, have resulted in increased production of gray literature like conference proceedings and institutional reports, which are published without adequate peer review. In developing countries like those in southeast Asia, manuals and other publications used in workshops and training programs seldom use peer-reviewed references. Among papers sampled, those in conference proceedings have lower percentages of citations to peer-reviewed journals, whether or not the proceedings are issued as books or journal supplements. From three proceedings and one institutional report with a total of 37 papers and an average of 22 cited references per paper, citations to gray literature averaged 92 percent of total citations. This poor quality of the reference lists decrease the credibility of a paper. Scientific conferences should be designed to reverse the production and use of gray literature by limiting the scope of the proceedings to invited reviews, with other presentations appearing only as abstracts to encourage their ultimate publication in peer-reviewed journals. A conference book of reviews by respected scientists will then support incorporation of scientific information into policy and management decisions for more effective coastal management.     

Species Distribution Models and Impact Factor Growth in Environmental Journals: Methodological Fashion or the Attraction of Global Change Science

In this work, I evaluate the impact of species distribution models (SDMs) on the current status of environmental and ecological journals by asking the question to which degree development of SDMs in the literature is related to recent changes in the impact factors of ecological journals. The hypothesis evaluated states that research fronts are likely to attract research attention and potentially drive citation patterns, with journals concentrating papers related to the research front receiving more attention and benefiting from faster increases in their impact on the ecological literature. My results indicate a positive relationship between the number of SDM related articles published in a journal and its impact factor (IF) growth during the period 2000–09. However, the percentage of SDM related papers in a journal was strongly and positively associated with the percentage of papers on climate change and statistical issues. The results support the hypothesis that global change science has been critical in the development of SDMs and that interest in climate change research in particular, rather than the usage of SDM per se, appears as an important factor behind journal IF increases in ecology and environmental sciences. Finally, our results on SDM application in global change science support the view that scientific interest rather than methodological fashion appears to be the major driver of research attraction in the scientific literature.     

I Publish in I Edit? - Do Editorial Board Members of Urologic Journals Preferentially Publish Their Own Scientific Work?

Scientists who are members of an editorial board have been accused of preferentially publishing their scientific work in the journal where they serve as editor. Reputation and academic standing do depend on an uninterrupted flow of published scientific work and the question does arise as to whether publication mainly occurs in the self-edited journal. This investigation was designed to determine whether editorial board members of five urological journals were more likely to publish their research reports in their own rather than in other journals. A retrospective analysis was conducted for all original reports published from 2001–2010 by 65 editorial board members nominated to the boards of five impact leading urologic journals in 2006. Publications before editorial board membership, 2001–2005, and publications within the period of time as an editorial board member, 2006–2010, were identified. The impact factors of the journals were also recorded over the time period 2001–2010 to see whether a change in impact factor correlated with publication locality. In the five journals as a whole, scientific work was not preferentially published in the journal in which the scientists served as editor. However, significant heterogeneity among the journals was evident. One journal showed a significant increase in the amount of published papers in the ‘own’ journal after assumption of editorship, three journals showed no change and one journal showed a highly significant decrease in publishing in the ‘own’ journal after assumption of editorship.     

晚清报刊所载真菌类专篇汇录

晚清时期传入中国的西方真菌学知识对于近代中国真菌学的建立和发展具有启蒙作用.在全面分析其影响之前,有必要先对相关文献进行全面的整理,而这些文献中大部分都分布于多种晚清报刊.经过整理和统计,本文共辑得89份真菌类专篇文章,其中大型真菌类44篇、霉菌类27篇、酵母菌类18篇,分布于26种报刊.这些文章中注明是译作的只有28篇,但其余的文章中涉及西方真菌科学知识的实际上都属于介译性质.这些真菌学知识部分是通过日文图书或期刊文献间接引入,部分是直接译自西方的科学文献.     

El duro peregrinaje de las revistas biomédicas españolas hacia la excelencia: ¿quién nos ayuda? Calidad,impacto y méritos de la investigación

Biomedical journals must adhere to strict standards of editorial quality. In a globalized academic scenario, biomedical journals must compete firstly to publish the most relevant original research and secondly to obtain the broadest possible visibility and the widest dissemination of their scientific contents. The cornerstone of the scientific process is still the peer-review system but additional quality criteria should be met. Recently access to medical information has been revolutionized by electronic editions.Bibliometric databases such as MEDLINE, the ISI Web of Science and Scopus offer comprehensive online information on medical literature. Classically, the prestige of biomedical journals has been measured by their impact factor but, recently, other indicators such as SCImago SJR or the Eigenfactor are emerging as alternative indices of a journal's quality. Assessing the scholarly impact of research and the merits of individual scientists remains a major challenge. Allocation of authorship credit also remains controversial.Furthermore, in our Kafkaesque world, we prefer to count rather than read the articles we judge. Quantitative publication metrics (research output) and citations analyses (scientific influence) are key determinants of the scientific success of individual investigators. However, academia is embracing new objective indicators (such as the “h” index) to evaluate scholarly merit. The present review discusses some editorial issues affecting biomedical journals, currently available bibliometric databases, bibliometric indices of journal quality and, finally, indicators of research performance and scientific success.     

Open by default: a proposed copyright license and waiver agreement for open access research and data in peer-reviewed journals

ABSTRACT: Copyright and licensing of scientific data, internationally, are complex and present legal barriers to data sharing, integration and reuse, and therefore restrict the most efficient transfer and discovery of scientific knowledge. Much data are included within scientific journal articles, their published tables, additional files (supplementary material) and reference lists. However, these data are usually published under licenses which are not appropriate for data. Creative Commons CC0 is an appropriate and increasingly accepted method for dedicating data to the public domain, to enable data reuse with the minimum of restrictions. BioMed Central is committed to working towards implementation of open data-compliant licensing in its publications. Here we detail a protocol for implementing a combined Creative Commons Attribution license (for copyrightable material) and Creative Commons CC0 waiver (for data) agreement for content published in peer-reviewed open access journals. We explain the differences between legal requirements for attribution in copyright, and cultural requirements in scholarship for giving individuals credit for their work through citation. We argue that publishing data in scientific journals under CC0 will have numerous benefits for individuals and society, and yet will have minimal implications for authors and minimal impact on current publishing and research workflows. We provide practical examples and definitions of data types, such as XML and tabular data, and specific secondary use cases for published data, including text mining, reproducible research, and open bibliography. We believe this proposed change to the current copyright and licensing structure in science publishing will help clarify what users -- people and machines -- of the published literature can do, legally, with journal articles and make research using the published literature more efficient. We further believe this model could be adopted across multiple publishers, and invite comment on this article from all stakeholders in scientific research.     

PUBLICATION ETHICS AND THE GHOST MANAGEMENT OF MEDICAL PUBLICATION

It is by now no secret that some scientific articles are ghost authored – that is, written by someone other than the person whose name appears at the top of the article. Ghost authorship, however, is only one sort of ghosting. In this article, we present evidence that pharmaceutical companies engage in the ghost management of the scientific literature, by controlling or shaping several crucial steps in the research, writing, and publication of scientific articles. Ghost management allows the pharmaceutical industry to shape the literature in ways that serve its interests. This article aims to reinforce and expand publication ethics as an important area of concern for bioethics. Since ghost‐managed research is primarily undertaken in the interests of marketing, large quantities of medical research violate not just publication norms but also research ethics. Much of this research involves human subjects, and yet is performed not primarily to increase knowledge for broad human benefit, but to disseminate results in the service of profits. Those who sponsor, manage, conduct, and publish such research therefore behave unethically, since they put patients at risk without justification. This leads us to a strong conclusion: if medical journals want to ensure that the research they publish is ethically sound, they should not publish articles that are commercially sponsored.     

The taxonomist - an endangered race. A practical proposal for its survival

Background

Taxonomy or biological systematics is the basic scientific discipline of biology, postulating hypotheses of identity and relationships, on which all other natural sciences dealing with organisms relies. However, the scientific contributions of taxonomists have been largely neglected when using species names in scientific publications by not citing the authority on which they are based.

Discussion

Consequences of this neglect is reduced recognition of the importance of taxonomy, which in turn results in diminished funding, lower interest from journals in publishing taxonomic research, and a reduced number of young scientists entering the field. This has lead to the so-called taxonomic impediment at a time when biodiversity studies are of critical importance. Here we emphasize a practical and obvious solution to this dilemma. We propose that whenever a species name is used, the author(s) of the species hypothesis be included and the original literature source cited, including taxonomic revisions and identification literature - nothing more than what is done for every other hypothesis or assumption included in a scientific publication. In addition, we postulate that journals primarily publishing taxonomic studies should be indexed in ISI^SM.

Summary

The proposal outlined above would make visible the true contribution of taxonomists within the scientific community, and would provide a more accurate assessment for funding agencies impact and importance of taxonomy, and help in the recruitment of young scientists into the field, thus helping to alleviate the taxonomic impediment. In addition, it would also make much of the biological literature more robust by reducing or alleviating taxonomic uncertainty.     

A fast GNU method to draw accurate scientific illustrations for taxonomy

Nowadays only digital figures are accepted by the most important journals of taxonomy. These may be produced by scanning conventional drawings, made with high precision technical ink-pens, which normally use capillary cartridge and various line widths. Digital drawing techniques that use vector graphics, have already been described in literature to support scientists in drawing figures and plates for scientific illustrations; these techniques use many different software and hardware devices. The present work gives step-by-step instructions on how to make accurate line drawings with a new procedure that uses bitmap graphics with the GNU Image Manipulation Program (GIMP). This method is noteworthy: it is very accurate, producing detailed lines at the highest resolution; the raster lines appear as realistic ink-made drawings; it is faster than the traditional way of making illustrations; everyone can use this simple technique; this method is completely free as it does not use expensive and licensed software and it can be used with different operating systems. The method has been developed drawing figures of terrestrial isopods and some examples are here given.     

The most important publications of the Polish histologist Henryk Fryderyk Hoyer (1834-1907) in German scientific journals

Henryk Fryderyk Hoyer (1834--1907) is rightly considered to be the father of Polish histology. Despite his major scientific achievements his work has undeservedly been overlooked in the medical historical literature outside Poland. Apart from the fact that Hoyer was the first to have conclusively proved on the basis of successful histological methods the existence of arteriovenous anastomoses, his innovations in the area of histological technique were of the greatest importance for histological research. Here the most important publications of Hoyer in German scientific journals are considered. Until now there has been no critical historical analysis of Hoyer's German works. This is the first attempt at such an analysis.     

Open access :an opportunity for biomedical research

Open access within the scientific community depends on the scientific context and the practices of the field. In the biomedical domain, the communication of research results is characterised by the importance of the peer reviewing process, the existence of a hierarchy among journals and the transfer of copyright to the editor. Biomedical publishing has become a lucrative market and the growth of electronic journals has not helped lower the costs. Indeed, it is difficult for today's public institutions to gain access to all the scientific literature. Open access is thus imperative, as demonstrated through the positions taken by a growing number of research funding bodies, the development of open access journals and efforts made in promoting open archives. This article describes the setting up of an Inserm portal for publication in the context of the French national protocol for open-access self-archiving and in an international context.     

Emerging journals. The benefits of and challenges for publishing scientific journals in and by emerging countries

Emerging countries have established national scientific journals as an alternative publication route for their researchers. However, these journals eventually need to catch up to international standards.Since the first scientific journal was founded—The Philosophical Transactions of the Royal Society in 1665—the number of journals dedicated to publishing academic research has literally exploded. The Thomson Reuters Web of Knowledge database alone—which represents far less than the total number of academic journals—includes more than 11,000 journals from non-profit, society and commercial publishers, published in numerous languages and with content ranging from the natural sciences to the social sciences and humanities. Notwithstanding the sheer scale and diversity of academic publishing, however, there is a difference between the publishing enterprise in developed countries and emerging countries in terms of the commercial rationale behind the journals.…‘national'' or even ‘local'' journals are published and supported because they report important, practical information that would be declined by international journals…Although all academic journals seek to serve their readership by publishing the highest quality and most interesting advances, a growing trend in the twentieth century has also seen publishers in developed countries viewing academic publishing as a way of generating profit, and the desire of journal editors to publish the best and most interesting science thereby serves the commercial interest of publishers who want people to buy the publication.In emerging countries, however, there are few commercial reasons to publish a journal. Instead, ‘national'' or even ‘local'' journals are published and supported because they report important, practical information that would be declined by international journals, either because the topic is of only local or marginal interest, or because the research does not meet the high standards for publication at an international level. Consequently, most ‘national'' journals are not able to finance themselves and depend on public funding. In Brazil, for instance, the national journals account for one-third of the publications of all scientific articles from Brazil and are mostly funded by the government. Other emerging countries that invest in research—notably China, India and Russia—also have a sizable number of national journals, most of which are published in their native language.There is little competition between developed countries to publish the most or the best scientific journals. There is clear competition between the top-flight journals—Nature and Science, for example—but this competition is academically and/or commercially, rather than nationally, based. In fact, countries with similar scientific calibres in terms of the research they generate, differ greatly in terms of the number of journals published within their borders. According to the Thomson Reuters database, for example, the Netherlands, Switzerland and Sweden published 847, 202 and 30 scientific journal, respectively, in 2010—the Netherlands has been a traditional haven for publishers. However, the number of articles published by researchers in these countries in journals indexed by Thomson Reuters—a rough measurement of scientific productivity—does not differ significantly.To overcome the perceived dominance of international journals […] some emerging countries have increased the number of national journalsScientists who edit directly or serve on the editorial boards of high-quality, international journals have a major responsibility because they guide the direction and set the standards of scientific research. In deciding what to publish, they define the quality of research, promote emerging research areas and set the criteria by which research is judged to be new and exciting; they are the gatekeepers of science. The distribution of these scientists also reflects the division between developed and emerging countries in scientific publishing. Using the Netherlands, Switzerland and Sweden as examples, they respectively contributed 235, 256 and 160 scientists to the editorial teams or boards of 220 high-impact, selected journals in 2005 (Braun & Diospatonyi, 2005). These numbers are comparable with the scientific production of these countries in terms of publications. On the other hand, Brazil, South Korea and Russia, countries as scientifically productive in terms of total number of articles as the Netherlands, Switzerland and Sweden, contributed only 28, 29 and 55 ‘gatekeepers'', respectively. A principal reason for this difference is, of course, the more variable quality of the science produced in emerging countries, but it is nevertheless clear that their scientists are under-represented on the teams that define the course and standards of scientific research.To overcome the perceived dominance of international journals, and to address the significant barriers to getting published that their scientists face, some emerging countries have increased the number of national journals (Sumathipala et al, 2004). Such barriers have been well documented and include poor written English and the generally lower or more variable quality of the science produced in emerging countries. However, although English, which is the lingua franca of modern science (Meneghini & Packer, 2007), is not as great a barrier as some would claim, there is some evidence of a conscious or subconscious bias among reviewers and editors in judging articles from emerging countries. (Meneghini et al, 2008; Sumathipala et al, 2004).A third pressure has also forced some emerging countries to introduce more national journals in which to publish academic research from within their borders: greater scientific output. During the past two or three decades, several of these countries have made huge investments into research—notably China, India and Brazil, among others—which has enormously increased their scientific productivity. Initially, the new national journals aspired to adopt the rigid rules of peer review and the quality standards of international journals, but this approach did not produce satisfactory results in terms of the quality of papers published. On the one hand, it is hard for national journals to secure the expertise of scientists competent to review their submissions; on the other, the reviewers who do agree tend to be more lenient, ostensibly believing that peer review as rigorous as that of international journals would run counter to the purpose of making scientific results publicly available, at least on the national level.The establishment of national journals has, in effect, created two parallel communication streams for scientists in emerging countries: publication in international journals—the selective route—and publication in national journals—the regional route. On the basis of their perceived chances to be accepted by an international journal, authors can choose the route that gives them the best opportunity to make their results public. Economic conditions are also important as the resources to produce national journals come from government, so national journals can face budget cuts in times of austerity. In the worst case, this can lead to the demise of national journals to the disadvantage of authors who have built their careers by publishing in them.…to not publish, for any reason, is to break the process of science and potentially inhibit progressThere is some anecdotal evidence that authors who often or almost exclusively publish in international journals hold national journals in some contempt—they regard them as a way of avoiding the effort and hassle of publishing internationally. Moreover, although the way in which governments regard and support the divergent routes varies between countries, in general, scientists who endure and succeed through the selective route often receive more prestige and have more influence in shaping national science policies. Conversely, authors who choose the regional publication route regard their efforts as an important contribution to the dissemination of information generated by the national scientific community, which might otherwise remain locked away—by either language or access policies. Either way, it is worth mentioning that publication is obviously not the end point of a scientific discovery: the results should feed into the pool of knowledge and might inspire other researchers to pursue new avenues or devise new experiments. Hence, to not publish, for any reason, is to break the process of science and potentially inhibit progress.The choice of pursuing publication in regional or international journals also has direct consequences for the research being published. The selective, international route ensures greater visibility, especially if the paper is published in a high-impact journal. The regional route also makes the results and experiments public, but it fails to attract international visibility, in particular if the research is not published in English.It seems that, for the foreseeable future, this scenario will not change. If it is to change, however, then the revolution must be driven by the national journals. In fact, a change that raises the quality and value of national journals would be prudent because it would give scientists from emerging countries the opportunity to sit on the editorial boards of, or referee for, the resulting high-quality national journals. In this way, the importance of national journals would be enhanced and scientists from emerging countries would invest effort and gain experience in serving as editors or referees.The regional route has various weaknesses, however, the most important of which is the peer-review process. Peer-review at national journals is simply of a lower standard owing to several factors that include a lack of training in objective research assessment, greater leniency and tolerance of poor-quality science, and an unwillingness by top researchers to participate because they prefer to give their time to the selective journals. This creates an awkward situation: on the one hand, the inability to properly assess submissions, and on the other hand, a lack of motivation to do so.Notwithstanding these difficulties, most editors and authors of national journals hope that their publications will ultimately be recognized as visible, reliable sources of information, and not only as instruments to communicate national research to the public. In other words, their aspiration is not only to publish good science—albeit of lesser interest to international journals—but also to attain the second or third quartiles of impact factors in their areas. These journals should eventually be good enough to compete with the international ones, mitigating their national character and attracting authors from other countries.The key is to raise the assessment procedures at national journals to international standards, and to professionalize their operations. Both goals are interdependent. The vast majority of national journals are published by societies and research organizations and their editorial structures are often limited to local researchers. As a result, they are shoestring operations that lack proper administrative support and international input, and can come across as amateurish. The SciELO (Scientific Electronic Library Online), which indexes national journals and measures their quality, can require certain changes when it indexes a journal, including the requirement to internationalize the editorial body or board.…experienced international editors should be brought in to strengthen national journals, raise their quality and educate local editors…In terms of improving this status quo, a range of other changes could be introduced. First, more decision-making authority should be given to publishers to decide how to structure the editorial body. The choice of ad hoc assistants—that is, professional scientists who can lend expertise at the editorial level should be selected by the editors—who should also assess journal performance. Moreover, publishers should try to attract international scientists with editorial experience to join a core group of two or three chief or senior editors. Their English skills, their experience in their research field and their influence in the community would catalyse a rapid improvement of the journals and their quality. In other words, experienced international editors should be brought in to strengthen national journals, raise their quality and educate local editors with the long-term objective to join the international scientific editing community. It would eventually merge the national and the selective routes of publishing into a single international route of scientific communication.Of course, there is a long way to go. The problem is that many societies and organizations do not have sufficient resources—money or experience—to attract international scientists as editors. However, new publishing and financial models could provide incentives to attract this kind of expertise. Ultimately, relying on government money alone is neither a reliable nor sufficient source of income to make national journals successful. One way of enhancing revenue streams might be to switch to an open-access model that would charge author fees that could be reinvested to improve the journals. In Brazil, for instance, almost all journals have adopted the open access model (Hedlund et al, 2004). The author fees—around US$1,250—if adopted, would provide financial support for increasing the quality and performance of the journals. Moreover, increased competition between journals at a national level should create a more dynamic and competitive situation among journals, raising the general quality of the science they publish. This would also feed back to the scientific community and help to raise the general standards of science in emerging countries.     

"Drink at least eight glasses of water a day." Really? Is there scientific evidence for "8 x 8"?

Despite the seemingly ubiquitous admonition to "drink at least eight 8-oz glasses of water a day" (with an accompanying reminder that beverages containing caffeine and alcohol do not count), rigorous proof for this counsel appears to be lacking. This review sought to find the origin of this advice (called "8 x 8" for short) and to examine the scientific evidence, if any, that might support it. The search included not only electronic modes but also a cursory examination of the older literature that is not covered in electronic databases and, most importantly and fruitfully, extensive consultation with several nutritionists who specialize in the field of thirst and drinking fluids. No scientific studies were found in support of 8 x 8. Rather, surveys of food and fluid intake on thousands of adults of both genders, analyses of which have been published in peer-reviewed journals, strongly suggest that such large amounts are not needed because the surveyed persons were presumably healthy and certainly not overtly ill. This conclusion is supported by published studies showing that caffeinated drinks (and, to a lesser extent, mild alcoholic beverages like beer in moderation) may indeed be counted toward the daily total, as well as by the large body of published experiments that attest to the precision and effectiveness of the osmoregulatory system for maintaining water balance. It is to be emphasized that the conclusion is limited to healthy adults in a temperate climate leading a largely sedentary existence, precisely the population and conditions that the "at least" in 8 x 8 refers to. Equally to be emphasized, lest the message of this review be misconstrued, is the fact (based on published evidence) that large intakes of fluid, equal to and greater than 8 x 8, are advisable for the treatment or prevention of some diseases and certainly are called for under special circumstances, such as vigorous work and exercise, especially in hot climates. Since it is difficult or impossible to prove a negative-in this instance, the absence of scientific literature supporting the 8 x 8 recommendation-the author invites communications from readers who are aware of pertinent publications.     

Index of the Venezuelan marine microflora: diatoms, dinoflagellates and cocolithophorids

The marine phytoplankton of Venezuela has been studied on a regular basis since the mid 20th century. However, a species checklist that can be used as a framework for taxonomic studies is lacking. In this paper, an index of the marine microflora of Venezuela is presented for the first time. The index includes only those diatoms (89 centric and 186 pennate species), dinoflagellates (eight naked and 154 thecate species) and coccolithophores (24 species) for which formal diagnosis and illustrations (drawings and/or photographs) have been reported in the scientific literature (journals and/or first degree or master's theses). It is ordered alphabetically according to class, order, family, and species. It includes the author (s) of the taxa.     

Out of the Loop: Why Research Rarely Reaches Policy Makers and the Public and What Can be Done

Most of the world's population that derives their livelihoods or part of their livelihoods from forests are out of the information loop. Exclusion of public users of natural resources from access to scientific research results is not an oversight; it is a systemic problem that has costly ramifications for conservation and development. Results of a survey of 268 researchers from 29 countries indicate that institutional incentives support the linear, top-down communication of results through peer-reviewed journal articles, which often guarantees positive performance measurement. While the largest percentage of respondents (34%) ranked scientists as the most important audience for their work, only 15 percent of respondents considered peer-reviewed journals effective in promoting conservation and/or development. Respondents perceived that local initiatives (27%) and training (16%) were likely to lead to success in conservation and development; but few scientists invest in these activities. Engagement with the media (5%), production of training and educational materials (4%) and popular publications (5%) as outlets for scientific findings was perceived as inconsequential (<14%) in measuring scientific performance. Less than 3 percent of respondents ranked corporate actors as an important audience for their work. To ensure science is shared with those who need it, a shift in incentive structures is needed that rewards actual impact rather than only 'high-impact' journals. Widely used approaches and theoretical underpinnings from the social sciences, which underlie popular education and communication for social change, could enhance communication by linking knowledge and action in conservation biology.     

Comparison of Journal Self-Citation Rates between Some Chinese and Non-Chinese International Journals

Background

The past 3 decades have witnessed a boost in science development in China; in parallel, more and more Chinese scientific journals are indexed by the Journal Citation Reports issued by Thomson Reuters (SCI). Evaluation of the performance of these Chinese SCI journals is necessary and helpful to improve their quality. This study aimed to evaluate these journals by calculating various journal self-citation rates, which are important parameters influencing a journal impact factor.

Methodology/Principal Findings

We defined three journal self-citation rates, and studied these rates for 99 Chinese scientific journals, almost exhausting all Chinese SCI journals currently available. Likewise, we selected 99 non-Chinese international (abbreviated as ‘world’) journals, with each being in the same JCR subject category and having similar impact factors as their Chinese counterparts. Generally, Chinese journals tended to be higher in all the three self-citation rates than world journal counterparts. Particularly, a few Chinese scientific journals had much higher self-citation rates.

Conclusions/Significance

Our results show that generally Chinese scientific journals have higher self-citation rates than those of world journals. Consequently, Chinese scientific journals tend to have lower visibility and are more isolated in the relevant fields. Considering the fact that sciences are rapidly developing in China and so are Chinese scientific journals, we expect that the differences of journal self-citation rates between Chinese and world scientific journals will gradually disappear in the future. Some suggestions to solve the problems are presented.     

Systematic reviews. Some examples.

Reviewing the literature is a scientific inquiry that needs a clear design to preclude bias. It is a real enterprise if one aims at completeness of the literature on a certain subject. Going through refereed English language journals is not enough. On line databases are helpful, but mainly as a starting point. This article gives examples of systematic reviews on vitamin C and the common cold, pyridoxine against the premenstrual syndrome, homeopathy, and physiotherapy.     

Primary literature as a basis for a high-school biology curriculum

Textbooks, research news from the media, and review articles from popular journals are the most common sources of texts used for high-school biology education. We attempted to adopt primary literature as a means of developing scientific literacy among high-school biology majors. For that purpose, we developed and implemented a primary literature-based curriculum in developmental biology. The process of adapting original research articles to the high-school level, as well as a conversational model developed for learning through research articles, are discussed.