Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 4.782
Filtrar
1.
Artículo en Inglés | MEDLINE | ID: mdl-33671518

RESUMEN

The Coronavirus disease 2019 (COVID-19) pandemic is an ongoing global health crisis with unmatched outcomes and effects. This pandemic has caused an infodemic of article publication in scientific journals. Dental journals have been active in the publication of COVID-19 related articles from the beginning of the pandemic. In this cross-sectional survey, we present an analysis of the scientific output of dental journals on COVID-19. The PubMed COVID-19 database was searched with the "Dental Journals" filter. Data including journal name, country, month of publication and number of citations were recorded. Science mapping analysis of the most used keywords was also performed. The search retrieved a total of 659 articles, of which 28 were excluded. Oral Diseases has published the most COVID-19 articles (15.1%), followed by the British Journal of Oral and Maxillofacial Surgery (8.6%) and the Journal of Dental Education (7.9%). Most of the articles were from researchers from the United States (168), United Kingdom (120) and Brazil (83). The number of citations of the published articles ranged from 0 to 406, with most articles (64.2%) having no citations. Science Mapping analysis revealed that the most used keywords were coronavirus infections, pandemics and humans. The dental community has been active in the publication of COVID-19 articles from the beginning of the pandemic. The papers published by dental journals explore issues such as the management of clinical practices during the outbreak, infection control in the dental setting, signs and symptoms of COVID-19 affecting the oral cavity, and the impact of the COVID-19 pandemic on educational and clinical programs.


Asunto(s)
Bibliometría , Odontología , Publicaciones Periódicas como Asunto/tendencias , Brasil , Estudios Transversales , Humanos , Pandemias , Reino Unido , Estados Unidos
2.
BMC Med Res Methodol ; 21(1): 50, 2021 03 11.
Artículo en Inglés | MEDLINE | ID: mdl-33706715

RESUMEN

BACKGROUND: Outbreaks of infectious diseases generate outbreaks of scientific evidence. In 2016 epidemics of Zika virus emerged, and in 2020, a novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) caused a pandemic of coronavirus disease 2019 (COVID-19). We compared patterns of scientific publications for the two infections to analyse the evolution of the evidence. METHODS: We annotated publications on Zika virus and SARS-CoV-2 that we collected using living evidence databases according to study design. We used descriptive statistics to categorise and compare study designs over time. RESULTS: We found 2286 publications about Zika virus in 2016 and 21,990 about SARS-CoV-2 up to 24 May 2020, of which we analysed a random sample of 5294 (24%). For both infections, there were more epidemiological than laboratory science studies. Amongst epidemiological studies for both infections, case reports, case series and cross-sectional studies emerged first, cohort and case-control studies were published later. Trials were the last to emerge. The number of preprints was much higher for SARS-CoV-2 than for Zika virus. CONCLUSIONS: Similarities in the overall pattern of publications might be generalizable, whereas differences are compatible with differences in the characteristics of a disease. Understanding how evidence accumulates during disease outbreaks helps us understand which types of public health questions we can answer and when.


Asunto(s)
/prevención & control , Publicaciones/estadística & datos numéricos , Publicaciones/tendencias , Infección por el Virus Zika/prevención & control , Virus Zika/aislamiento & purificación , /epidemiología , Estudios de Casos y Controles , Estudios Transversales , Brotes de Enfermedades , Humanos , Pandemias , Publicaciones Periódicas como Asunto/estadística & datos numéricos , Publicaciones Periódicas como Asunto/tendencias , Virus Zika/fisiología , Infección por el Virus Zika/epidemiología , Infección por el Virus Zika/virología
7.
Trends Parasitol ; 37(1): 1-2, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33308951
8.
Immunology ; 162(1): 1-2, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33305861

RESUMEN

2020 was a year unlike any other for Immunology. Through the SARS-CoV-2 pandemic, with fantastic support from the global immunology community, we worked together to reach new heights. Here, we look back at some of the highlights for Immunology in a challenging and memorable year.


Asunto(s)
Alergia e Inmunología/tendencias , Investigación Biomédica/tendencias , Publicaciones Periódicas como Asunto/tendencias , Políticas Editoriales , Humanos , Difusión de la Información , Factor de Impacto de la Revista
9.
Clin Sci (Lond) ; 134(24): 3233-3235, 2020 12 23.
Artículo en Inglés | MEDLINE | ID: mdl-33313696

RESUMEN

As this extraordinary year, blemished by COVID-19, comes to an end, I look back as Editor-in-Chief to the many great successes and new initiatives of Clinical Science. Despite the challenges we all faced during 2020, our journal has remained strong and vibrant. While we have all adapted to new working conditions, with life very different to what it was pre-COVID-19, the one thing that remains intact and secure is the communication of scientific discoveries through peer-reviewed journals. I am delighted to share with you some of the many achievements of our journal over the past year and to highlight some exciting new activities planned for 2021.


Asunto(s)
Investigación Biomédica/normas , Políticas Editoriales , Publicaciones Periódicas como Asunto/normas , Investigación Biomédica/estadística & datos numéricos , Investigación Biomédica/tendencias , /inmunología , /administración & dosificación , Predicción , Humanos , Pandemias/prevención & control , Publicaciones Periódicas como Asunto/estadística & datos numéricos , Publicaciones Periódicas como Asunto/tendencias , /fisiología
11.
Medicine (Baltimore) ; 99(51): e23801, 2020 Dec 18.
Artículo en Inglés | MEDLINE | ID: mdl-33371154

RESUMEN

OBJECTIVES: To clarify the styles used in background sections of systematic reviews (SR) and to identify which styles if any were related to the publication in high-impact-factor (HIF) medical journals. METHOD: This was a cross-sectional study for original SR articles published in top 50 journals in MEDICINE, GENERAL & INTERNAL category in Journal Citation Reports 2018. We randomly included 90 articles from top 10 HIF journals and 90 from others, respectively. We conducted a content analysis to classify the background styles. We assessed the factors associated with the publication in HIF journals. RESULTS: We found 6 categories. We defined 6 categories as follows: Update of prior SR, New in scope than prior SR, Higher quality than prior SR, Completely new SR, Limitations of primary studies only, and Not presenting unknown in prior SR or primary studies. All 6 categories were not related to the publication in HIF journals. CONCLUSIONS: We found 6 categories of styles in background sections of SR, none of which however were related to publication in HIF journals. SR authors may wish to use any of these categories to communicate the importance of their research questions.


Asunto(s)
Factor de Impacto de la Revista , Publicaciones Periódicas como Asunto/normas , Revisiones Sistemáticas como Asunto/métodos , Estudios Transversales , Estudios Epidemiológicos , Humanos , Publicaciones Periódicas como Asunto/tendencias
14.
Tog (A Coruña) ; 17(2): 104-107, nov. 2020.
Artículo en Español | IBECS | ID: ibc-198807

RESUMEN

La aparición de las y los superhéroes ha sido a lo largo de la historia una propaganda social que mantiene viva la llama de la esperanza. La realidad se torna incierta cuando una o un superhéroe flaquea. Pero la realidad es que todas y todos los superhéroes a lo largo de su vida han sentido una falta de equilibrio ocupacional que ha roto su sensación de competencia. Esta situación no exenta de ciertas repercusiones mantiene ese punto de cercanía con la sociedad. El desempeño ocupacional de una o un superhéroe va a depender las cruzadas en las que se encuentre. En la sociedad actual más de una y uno se ha enfundado en el traje siendo esa o ese superhéroe para otros y otras


The appearance of superhero has been throughout history a social propaganda that keeps the flame of hope alive. Reality becomes uncertain when one or a superhero falters. But the reality is that each and every superhero throughout their lives has felt a lack of occupational balance that has broken their sense of competence. This situation is not without certain repercussions maintains that point of closeness with society. The occupational performance of one or a superhero will depend on the crusades in which they are. In today's society more than one and one has dressed in the suit being one or a superhero for others and others


Asunto(s)
Humanos , Salud Laboral/tendencias , Médicos Laborales/organización & administración , Medicina del Trabajo/organización & administración , Publicaciones Periódicas como Asunto/tendencias , Publicación Periódica , Sociedades Médicas/organización & administración , Sociedades Médicas/normas , Redes de Comunicación de Computadores/normas , Internet
15.
Medicine (Baltimore) ; 99(44): e22885, 2020 Oct 30.
Artículo en Inglés | MEDLINE | ID: mdl-33126338

RESUMEN

BACKGROUND: Publications regarding the 100 top-cited articles in a given discipline are common, but studies reporting the association between article topics and their citations are lacking. Whether or not reviews and original articles have a higher impact factor than case reports is a point for verification in this study. In addition, article topics that can be used for predicting citations have not been analyzed. Thus, this study aims to METHODS:: We searched PubMed Central and downloaded 100 top-cited abstracts in the journal Medicine (Baltimore) since 2011. Four article types and 7 topic categories (denoted by MeSH terms) were extracted from abstracts. Contributors to these 100 top-cited articles were analyzed. Social network analysis and Sankey diagram analysis were performed to identify influential article types and topic categories. MeSH terms were applied to predict the number of article citations. We then examined the prediction power with the correlation coefficients between MeSH weights and article citations. RESULTS: The citation counts for the 100 articles ranged from 24 to 127, with an average of 39.1 citations. The most frequent article types were journal articles (82%) and comparative studies (10%), and the most frequent topics were epidemiology (48%) and blood and immunology (36%). The most productive countries were the United States (24%) and China (23%). The most cited article (PDID = 27258521) with a count of 135 was written by Dr Shang from Shandong Provincial Hospital Affiliated to Shandong University (China) in 2016. MeSH terms were evident in the prediction power of the number of article citations (correlation coefficients  = 0.49, t = 5.62). CONCLUSION: The breakthrough was made by developing dashboards showing the overall concept of the 100 top-cited articles using the Sankey diagram. MeSH terms can be used for predicting article citations. Analyzing the 100 top-cited articles could help future academic pursuits and applications in other academic disciplines.


Asunto(s)
Bibliometría , Factor de Impacto de la Revista , Medical Subject Headings , Publicaciones Periódicas como Asunto/tendencias , Publicaciones , Predicción , Humanos , Redes Sociales en Línea , PubMed , Publicaciones/clasificación , Publicaciones/normas , Publicaciones/estadística & datos numéricos
17.
Acta Biomed ; 91(3): e2020020, 2020 09 07.
Artículo en Inglés | MEDLINE | ID: mdl-32921717

RESUMEN

COVID-19 first presented in Wuhan, Hubei Province, China in December 2019. Since then, it has rapidly spread across the world, and is now formally considered a pandemic. As of 4th of May more than 3.2 million people have been infected and over 250,000 people has died. Since the very start, scientists and researchers have tried to utilize this case to publish academic experiences and suggestions toward fighting this virus, which is lethal in some cases. To date, more than 9,000 academic papers have been published since December 2019. The quality of publications varies from a plane letter to editor to randomized studies. This review aims to analyse the current published literature related to COVID-19 and assess the quality of such articles.


Asunto(s)
Betacoronavirus , Infecciones por Coronavirus/epidemiología , Pandemias , Publicaciones Periódicas como Asunto/tendencias , Neumonía Viral/epidemiología , Edición/organización & administración , Humanos
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...