Journal Impact Factor: A quantitative measure of the frequency on average with which articles in a journal have been cited in a given period of time.Bibliometrics: The use of statistical methods in the analysis of a body of literature to reveal the historical development of subject fields and patterns of authorship, publication, and use. Formerly called statistical bibliography. (from The ALA Glossary of Library and Information Science, 1983)Periodicals as Topic: A publication issued at stated, more or less regular, intervals.Publishing: "The business or profession of the commercial production and issuance of literature" (Webster's 3d). It includes the publisher, publication processes, editing and editors. Production may be by conventional printing methods or by electronic publishing.Peer Review, Research: The evaluation by experts of the quality and pertinence of research or research proposals of other experts in the same field. Peer review is used by editors in deciding which submissions warrant publication, by granting agencies to determine which proposals should be funded, and by academic institutions in tenure decisions.Journalism, Medical: The collection, writing, and editing of current interest material on topics related to biomedicine for presentation through the mass media, including newspapers, magazines, radio, or television, usually for a public audience such as health care consumers.Manuscripts, MedicalAuthorship: The profession of writing. Also the identity of the writer as the creator of a literary production.Databases, Bibliographic: Extensive collections, reputedly complete, of references and citations to books, articles, publications, etc., generally on a single subject or specialized subject area. Databases can operate through automated files, libraries, or computer disks. The concept should be differentiated from DATABASES, FACTUAL which is used for collections of data and facts apart from bibliographic references to them.Publications: Copies of a work or document distributed to the public by sale, rental, lease, or lending. (From ALA Glossary of Library and Information Science, 1983, p181)Research: Critical and exhaustive investigation or experimentation, having for its aim the discovery of new facts and their correct interpretation, the revision of accepted conclusions, theories, or laws in the light of newly discovered facts, or the practical application of such new or revised conclusions, theories, or laws. (Webster, 3d ed)Biomedical Research: Research that involves the application of the natural sciences, especially biology and physiology, to medicine.Editorial Policies: The guidelines and policy statements set forth by the editor(s) or editorial board of a publication.Research Support as Topic: Financial support of research activities.Abstracting and Indexing as Topic: Activities performed to identify concepts and aspects of published information and research reports.Dermatology: A medical specialty concerned with the skin, its structure, functions, diseases, and treatment.Manuscripts as Topic: Compositions written by hand, as one written before the invention or adoption of printing. A manuscript may also refer to a handwritten copy of an ancient author. A manuscript may be handwritten or typewritten as distinguished from a printed copy, especially the copy of a writer's work from which printed copies are made. (Webster, 3d ed)Peer Review: An organized procedure carried out by a select committee of professionals in evaluating the performance of other professionals in meeting the standards of their specialty. Review by peers is used by editors in the evaluation of articles and other papers submitted for publication. Peer review is used also in the evaluation of grant applications. It is applied also in evaluating the quality of health care provided to patients.Scientific Misconduct: Intentional falsification of scientific data by presentation of fraudulent or incomplete or uncorroborated findings as scientific fact.Science: The study of natural phenomena by observation, measurement, and experimentation.Biobibliography as Topic: A biography which includes a list of the writings of the subject person.Academies and Institutes: Organizations representing specialized fields which are accepted as authoritative; may be non-governmental, university or an independent research organization, e.g., National Academy of Sciences, Brookings Institution, etc.MEDLINE: The premier bibliographic database of the NATIONAL LIBRARY OF MEDICINE. MEDLINE® (MEDLARS Online) is the primary subset of PUBMED and can be searched on NLM's Web site in PubMed or the NLM Gateway. MEDLINE references are indexed with MEDICAL SUBJECT HEADINGS (MeSH).Research Personnel: Those individuals engaged in research.Adolescent Psychiatry: The medical science that deals with the origin, diagnosis, prevention, and treatment of mental disorders in individuals 13-18 years.Child Psychiatry: The medical science that deals with the origin, diagnosis, prevention, and treatment of mental disorders in children.Psychiatry: The medical science that deals with the origin, diagnosis, prevention, and treatment of mental disorders.Directories as Topic: Lists of persons or organizations, systematically arranged, usually in alphabetic or classed order, giving address, affiliations, etc., for individuals, and giving address, officers, functions, and similar data for organizations. (ALA Glossary of Library and Information Science, 1983)Access to Information: Individual's rights to obtain and use information collected or generated by others.Carbon Dioxide: A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.Consumer Satisfaction: Customer satisfaction or dissatisfaction with a benefit or service received.Carbon Footprint: A measure of the total greenhouse gas emissions produced by an individual, organization, event, or product. It is measured in units of equivalent kilograms of CARBON DIOXIDE generated in a given time frame.Life Style: Typical way of life or manner of living characteristic of an individual or group. (From APA, Thesaurus of Psychological Index Terms, 8th ed)Carbon: A nonmetallic element with atomic symbol C, atomic number 6, and atomic weight [12.0096; 12.0116]. It may occur as several different allotropes including DIAMOND; CHARCOAL; and GRAPHITE; and as SOOT from incompletely burned fuel.Socioeconomic Factors: Social and economic factors that characterize the individual or group within the social structure.Behavior, Animal: The observable response an animal makes to any situation.Orthodontics: A dental specialty concerned with the prevention and correction of dental and oral anomalies (malocclusion).EuropeReceptor, Epidermal Growth Factor: A cell surface receptor involved in regulation of cell growth and differentiation. It is specific for EPIDERMAL GROWTH FACTOR and EGF-related peptides including TRANSFORMING GROWTH FACTOR ALPHA; AMPHIREGULIN; and HEPARIN-BINDING EGF-LIKE GROWTH FACTOR. The binding of ligand to the receptor causes activation of its intrinsic tyrosine kinase activity and rapid internalization of the receptor-ligand complex into the cell.Antibody-Dependent Cell Cytotoxicity: The phenomenon of antibody-mediated target cell destruction by non-sensitized effector cells. The identity of the target cell varies, but it must possess surface IMMUNOGLOBULIN G whose Fc portion is intact. The effector cell is a "killer" cell possessing Fc receptors. It may be a lymphocyte lacking conventional B- or T-cell markers, or a monocyte, macrophage, or polynuclear leukocyte, depending on the identity of the target cell. The reaction is complement-independent.Lung Neoplasms: Tumors or cancer of the LUNG.Carcinoma, Non-Small-Cell Lung: A heterogeneous aggregate of at least three distinct histological types of lung cancer, including SQUAMOUS CELL CARCINOMA; ADENOCARCINOMA; and LARGE CELL CARCINOMA. They are dealt with collectively because of their shared treatment strategy.Epidermal Growth Factor: A 6-kDa polypeptide growth factor initially discovered in mouse submaxillary glands. Human epidermal growth factor was originally isolated from urine based on its ability to inhibit gastric secretion and called urogastrone. Epidermal growth factor exerts a wide variety of biological effects including the promotion of proliferation and differentiation of mesenchymal and EPITHELIAL CELLS. It is synthesized as a transmembrane protein which can be cleaved to release a soluble active form.QuinazolinesCell Line, Tumor: A cell line derived from cultured tumor cells.Staphylococcus aureus: Potentially pathogenic bacteria found in nasal membranes, skin, hair follicles, and perineum of warm-blooded animals. They may cause a wide range of infections and intoxications.Virulence: The degree of pathogenicity within a group or species of microorganisms or viruses as indicated by case fatality rates and/or the ability of the organism to invade the tissues of the host. The pathogenic capacity of an organism is determined by its VIRULENCE FACTORS.DNA Transposable Elements: Discrete segments of DNA which can excise and reintegrate to another site in the genome. Most are inactive, i.e., have not been found to exist outside the integrated state. DNA transposable elements include bacterial IS (insertion sequence) elements, Tn elements, the maize controlling elements Ac and Ds, Drosophila P, gypsy, and pogo elements, the human Tigger elements and the Tc and mariner elements which are found throughout the animal kingdom.Mutagenesis, Insertional: Mutagenesis where the mutation is caused by the introduction of foreign DNA sequences into a gene or extragenic sequence. This may occur spontaneously in vivo or be experimentally induced in vivo or in vitro. Proviral DNA insertions into or adjacent to a cellular proto-oncogene can interrupt GENETIC TRANSLATION of the coding sequences or interfere with recognition of regulatory elements and cause unregulated expression of the proto-oncogene resulting in tumor formation.Gene Expression Regulation, Bacterial: Any of the processes by which cytoplasmic or intercellular factors influence the differential control of gene action in bacteria.Bacterial Proteins: Proteins found in any species of bacterium.Molecular Sequence Data: Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.

Concentration of the most-cited papers in the scientific literature: analysis of journal ecosystems. (1/238)

BACKGROUND: A minority of scientific journals publishes the majority of scientific papers and receives the majority of citations. The extent of concentration of the most influential articles is less well known. METHODS/PRINCIPAL FINDINGS: The 100 most-cited papers in the last decade in each of 21 scientific fields were analyzed; fields were considered as ecosystems and their "species" (journal) diversity was evaluated. Only 9% of journals in Journal Citation Reports had published at least one such paper. Among this 9%, half of them had published only one such paper. The number of journals that had published a larger number of most-cited papers decreased exponentially according to a Lotka law. Except for three scientific fields, six journals accounted for 53 to 94 of the 100 most-cited papers in their field. With increasing average number of citations per paper (citation density) in a scientific field, concentration of the most-cited papers in a few journals became even more prominent (p<0.001). Concentration was unrelated to the number of papers published or number of journals available in a scientific field. Multidisciplinary journals accounted for 24% of all most-cited papers, with large variability across fields. The concentration of most-cited papers in multidisciplinary journals was most prominent in fields with high citation density (correlation coefficient 0.70, p<0.001). Multidisciplinary journals had published fewer than eight of the 100 most-cited papers in eight scientific fields (none in two fields). Journals concentrating most-cited original articles often differed from those concentrating most-cited reviews. The concentration of the most-influential papers was stronger than the already prominent concentration of papers published and citations received. CONCLUSIONS: Despite a plethora of available journals, the most influential papers are extremely concentrated in few journals, especially in fields with high citation density. Existing multidisciplinary journals publish selectively most-cited papers from fields with high citation density.  (+info)

Sharing detailed research data is associated with increased citation rate. (2/238)

BACKGROUND: Sharing research data provides benefit to the general scientific community, but the benefit is less obvious for the investigator who makes his or her data available. PRINCIPAL FINDINGS: We examined the citation history of 85 cancer microarray clinical trial publications with respect to the availability of their data. The 48% of trials with publicly available microarray data received 85% of the aggregate citations. Publicly available data was significantly (p = 0.006) associated with a 69% increase in citations, independently of journal impact factor, date of publication, and author country of origin using linear regression. SIGNIFICANCE: This correlation between publicly available data and increased literature impact may further motivate investigators to share their detailed research data.  (+info)

Characteristics associated with citation rate of the medical literature. (3/238)

BACKGROUND: The citation rate for articles is viewed as a measure of their importance and impact; however, little is known about what features of articles are associated with higher citation rate. METHODOLOGY/PRINCIPAL FINDINGS: We conducted a cohort study of all original articles, regardless of study methodology, published in the Lancet, JAMA, and New England Journal of Medicine, from October 1, 1999 to March 31, 2000. We identified 328 articles. Two blinded, independent reviewers extracted, in duplicate, nine variables from each article, which were analyzed in both univariable and multivariable linear least-squares regression models for their association with the annual rate of citations received by the article since publication. A two-way interaction between industry funding and an industry-favoring result was tested and found to be significant (p = 0.02). In our adjusted analysis, the presence of industry funding and an industry-favoring result was associated with an increase in annual citation rate of 25.7 (95% confidence interval, 8.5 to 42.8) compared to the absence of both industry funding and industry-favoring results. Higher annual rates of citation were also associated with articles dealing with cardiovascular medicine (13.3 more; 95% confidence interval, 3.9 to 22.3) and oncology (12.6 more; 95% confidence interval, 1.2 to 24.0), articles with group authorship (11.1 more; 95% confidence interval, 2.7 to 19.5), larger sample size and journal of publication. CONCLUSIONS/SIGNIFICANCE: Large trials, with group authorship, industry-funded, with industry-favoring results, in oncology or cardiology were associated with greater subsequent citations.  (+info)

Citation analysis of the Croatian Medical Journal: the first 15 years. (4/238)

The Croatian Medical Journal (CMJ) is a bimonthly scientific journal, that publishes mostly original articles. It is indexed in the Index Medicus/MEDLINE, Current Contents/Clinical Medicine, and the Science Citation Index Expanded. Since the CMJ's 15th anniversary in 2007, our aim has been to assess the importance of the Journal through its impact factor (IF) and immediacy index, with a particular focus placed on the proportion of self-citations. According the Web of Knowledge database, the current official IF for the CMJ is 0.825, ranking it 62nd out of 103 journals within the Thomson Scientific category "Medicine - General and Internal." The exclusion of self-citations resulted in a small decrease in the journal's rank - to 66th place. According to the Web of Science database, the predicted CMJ IF in 2007 is between 1.024 and 1.125, showing a clear increase. The immediacy index of the CMJ is continuously low, with a high contribution of self-citations, implying that articles published in the CMJ require more time to be cited, and that their topics are of particular interest to the journal's readers and contributors. Self-citations contributed significantly to the IF in the first few years after the journal was established. The proportion of independent citations progressively increased, and of all the citations included in the IF in 2007, almost 70% were fully independent. Some of these citations were from articles published in journals with IF higher than 5. Taken together, our data suggest that the CMJ has significantly improved its citation ratings during the last 15 years, confirming that a quality-oriented editorial policy in a small peripheral journal may result in a truly increased international visibility.  (+info)

Factors influencing editors' decision on acceptance or rejection of manuscripts: the authors' perspective. (5/238)


Journal impact factor and its importance for AFP. (6/238)

BACKGROUND: In 2008, Australian Family Physician (AFP) was accepted on the list of journals listed in Science Citation Index Expanded and, thus, will generate an impact factor over the next 2 years. Impact factor is important to authors from research and academic backgrounds and will make AFP an increasingly attractive journal in which to publish. AIM: To describe the impact factor, its method of calculation, and its flaws. DISCUSSION: Impact factor is the number of a journal's cited research papers divided by the total number of citable papers it has published. It is distorted by several different factors: sub-discipline, region, basic versus applied research, and whether the journal editor deliberately tries to strategically increase their impact factor. CONCLUSION: Impact factor is an oversimplified single measure of 'impact', which may underestimate the contribution of the AFP to society. However, no accepted alternative metric currently exists.  (+info)

Sometimes the impact factor outshines the H index. (7/238)


Research productivity of members of IADR Behavioral Sciences and Health Services Research Group: relationship to professional and personal factors. (8/238)

This report describes the research productivity of the members of the International Association for Dental Research (IADR) Behavioral Sciences and Health Services Research Group and examines personal and professional factors related to greater productivity. The findings from previous studies suggested there might be gender discrimination in opportunities for women faculty. Members on the active membership list for this IADR group were surveyed by email. Most were dentists, and three-quarters had external funding for their research. The primary outcome measure was the number of self-reported published articles in PubMed in the preceding twenty-four months. The mean number of these publications was 4.9 (SD=5.1). Gender and time in research were the best predictors of research productivity of this population. There was no difference in time for research between the men and women in this study. Controlling for gender, the best single predictor of research productivity remained percent time spent in research. Overall, the members of the IADR group spent almost three times as much time in research and were more than twice as productive as faculty members as a whole as described in earlier studies. In view of the current emphasis in many countries on addressing the social and behavioral determinants of oral health disparities, the productivity of this area of dental research is very important. Trends toward clinically oriented, non-research-intensive dental schools in the United States and reductions in time and funding available to conduct research should be of concern.  (+info)

  • Though Rosy and her guide were proud of their study being one of the earliest users of Next Generation Sequencing in India, they would soon realise that journals simply weren't as excited. (
  • Jul 30, 2015 · As some readers may have seen, the 2014 impact factor (IF) for Nature Methods, released last month, moved up six points from the year before.We take the opportunity here to reflect on this metric. (
  • Therefore, the aims of this review article are to highlighten the impact of the water quality on fish health and the possible control methods. (
  • The European Journal of Population aims to improve understanding of population phenomena by giving priority to work that contributes to the development of theory and method, and that spans the boundaries between demography and such disciplines as sociology, anthropology, economics, geography, history, political science, epidemiology and other sciences contributing to public health. (
  • read the featured article in the Journal.1 Millionth Structure. (
  • An article published in the Journal of the American Chemical Society (JACS) contains the 1 millionth structure added to the Cambridge Structural Database (CDS), according to The Cambridge Crystallographic Data Centre (CCDC). (
  • This paper examines the relationships between the journal impact factor and the h-type indices in virology journals. (
  • ASM Journals and The Journal Impact Factor (JIF).Clinical and Vaccine Immunology. (
  • Mixed-Methods Analysis of Factors Impacting Use of a Postoperative mHealth App. (
  • Methods We assigned 2,137 volunteers to groups that either did undergo CAC scanning or did not undergo CAC scanning before risk factor counseling. (
  • Temperatures-high pressures history of geo- and space sciences human gene therapy methods human vaccines immunotherapeutics IEEE design test IEEE journal of photovoltaics IEEE transactions on affective Human Vaccines Journal Impact Factor.Impact Factor List Search. (
  • JOURNAL OF VIROLOGICAL METHODS] Hello, you are Visitor Number 14642 on this page. (
  • Methods: 2013 h5-index, 2012 IF, and 2011 SJR of nuclear medicine journals were extracted from their publishers namely GS, WOS, and SCOPUS. (
  • Gamma-glutamyltransferase (GGT) is an emerging cardiovascular (CV) risk factor: its values in the upper quartile reference range are independently predictive of CV risk [1, (
  • Home building is one of the pillars of the American economy, so there has been concern that increases in mortgage interest rates could have an impact not just on homebuilders, but the greater economy. (
  • The journals were ranked by their journal impact factor and h-indices. (
  • The correlation analysis of the measures found a strong relationship between the journal impact factor and the h-type indices, and a stronger tie between the h-indices themselves. (
  • Despite the strong correlations between the measures, differences in rankings of the journals with the journal impact factor and the h-type indices were found, and possible explanations for the differences were provided. (
  • Exercise and sport-science journals with impact factors rising by more than 0.3 since last year include Acta Physiologica Scandinavica (now 2.1), Journal of Rehabilitation Medicine (1.6), Leisure Sciences (1.3), Pediatric Exercise Science (1.4), Physical Therapy (2.0), Scandinavian Journal of Medicine and Science in Sports (1.7), and Sports Medicine (2.8). (
  • The biggest winner is the Scandinavian Journal of Medicine and Science in Sports , up from 0.9 to 1.7. (
  • Introduction: In the current study, we compared h5-index provided by Google Scholar (GS), impact factor (IF) provided by web of sciences (WOS), and SCImago journal rank indicator (SJR) provided by SCOPUS for quality assessment of nuclear medicine journals. (
  • Consequently, if a journal grows, its JIF calculation becomes unbalanced with a larger group of underperforming 2-year old papers and a relatively smaller group of 3-year old papers. (
  • The Journal of Steadfast Output publishes 100 papers per year. (
  • In 2015, our journal published five issues per year, each composed of 20 papers, for an annual total of 100 papers. (
  • The journal impact factor (IF) in a given year is the ratio of the number of times the citable papers published in the journal are cited to the sum of citable papers published by the journal in the preceding two years. (
  • Seven journals in the BMC series also received their first Impact Factors this year. (
  • Breast Cancer Research's Impact Factor jumped from 2.98 in 2004 to 4.03 this year. (
  • Roldan-Valadez E, Rios C (2015) Alternative bibliometrics from impact factor improved the esteem of a journal in a 2-year-ahead annual-citation calculation: multivariate analysis of gastroenterology and hepatology journals. (
  • Over a year ago, Google confirmed that site load speed was an important ranking factor. (
  • Impact factor time trends were assessed using a linear regression model, in which the dependent variable was IF and the independent variable, the year. (
  • WASHINGTON , Sept. 8, 2011 /PRNewswire-USNewswire/ - According to a new U.S. Census Bureau study, education levels had more effect on earnings over a 40-year span in the workforce than any other demographic factor, such as gender, race and Hispanic origin. (
  • The primary end point was 4-year change in coronary artery disease risk factors and Framingham Risk Score. (
  • This prospective randomized trial was designed to test the primary hypothesis that performing CAC scanning of asymptomatic volunteers would lead to a beneficial sustained 4-year effect on their CAD risk factors. (
  • The impact factor for a journal is roughly the number of times per year the average paper in the journal was cited in any recent journal. (
  • Journal of the International Society of Sports Nutrition made the most spectacular entry/gain (up from an unofficial 0.5 last year to 2.7). (
  • The impact factor is therefore 98/82 = 1.2, a respectable value for a specialty journal in only its sixth year. (
  • The survey showed a demand for publishers to provide more information about their journals: 85% of authors said that information on journal performance is important to them when deciding where to submit their work, but 48% thought that publishers did not provide enough. (
  • We also identified the publishers of the included journals.Sixty-three percent (106/168) of the included journals mentioned CONSORT in their "Instructions to Authors. (
  • however, specific instructions on how CONSORT should be used by authors are inconsistent across journals and publishers. (
  • Publishers and journals should encourage authors to use CONSORT and set clear expectations for authors about compliance with CONSORT. (