Publications by authors named "Juan Carlos Valderrama Zurián"

34 Publications

Financed research from Government Delegation grants for the National Plan on Drugs: research assessment and scientific impact.

Adicciones 2021 Mar 11;0(0):1550. Epub 2021 Mar 11.

CSIC-Universitat de València. CSIC-Universitat Politècnica de València.

Addictive disorders are a serious health problem to which large amounts of research resources are devoted. This study aims to analyze the evolution and scientific impact of the publications derived from the funding of research projects by the Spanish National Plan on Drugs (PNSD). The list of grants awarded was provided by the PNSD. Derived publications were obtained by asking the principal investigators of the grants and searching in the Web of Science and Scopus. Bibliometric indicators and evolutive trends of scientific production per project were calculated. On average, the PNSD conferred 15 annual grants to research projects, with an annual amount close to one million euros (€944,200.64) and an average amount per grant of just over €60,000, being higher in basic research and in alcohol. 71,9% of the grants had derived publications and almost half of them produced between one and three publications, with basic research being the most prolific. The international journal in which most articles were published was Psychopharmacology (50) and among Spanish journals, Adicciones stood out (28). A high level of co-authorship and international collaboration was identified. Most of the PNSD-funded projects produced research articles, many of them in journals belonging to the first and second quartiles of the Journal Citation Reports. The results of this study have revealed the scientific impact of the PNSD research projects funding and may contribute to determining future funding priorities.
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http://dx.doi.org/10.20882/adicciones.1550DOI Listing
March 2021

The most 100 cited papers in addiction research on cannabis, heroin, cocaine and psychostimulants. A bibliometric cross-sectional analysis.

Drug Alcohol Depend 2021 Apr 15;221:108616. Epub 2021 Feb 15.

Research Unit of Social and Health Information, UISYS Group, Universitat de València, Valencia, Spain; Ingenio (CSIC-Universitat Politècnica de València), Valencia, Spain. Electronic address:

The number of citations a peer-reviewed article receives is often used as a measure of its importance and scientific impact. This paper identifies, describes and categorizes the highly cited papers in addiction research on cannabis, heroin, cocaine and psychostimulants. Highly cited papers were identified in the Web of Science Core Collection database. Several bibliometric indicators were calculated. Social network analysis was applied to draw groups of authors and institutions with the greatest number of collaborations and co-words. The number of citations for the top 100 cited articles ranged from 649 to 4,672. The articles were published in 40 journals. The subject category Substance Abuse included 10 papers. The United States was the most productive country (79 papers), followed by the United Kingdom (9). The main funding institutions were the National Institutes of Health in the United States. The network of collaboration between authors distributes the 352 researchers into 53 groups. The three most cited works address the neural basis of drug craving as an incentive-sensitization theory of addiction, the clinical and research uses of the Addiction Severity Index, and the neurocircuitry of addiction. Scientific literature on addictions is widely dispersed both in multidisciplinary and specific journals of neurology, psychiatry and addictions, with relatively few publications providing most of the citations. An ongoing challenge for this field is the concentration of highly cited papers coming from a select number of countries, with the United States being the research hub of the world, with the highest volume of publications and total citations.
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http://dx.doi.org/10.1016/j.drugalcdep.2021.108616DOI Listing
April 2021

The impact of Ibero-American science on global bioethical thinking.

Dev World Bioeth 2021 Feb 20. Epub 2021 Feb 20.

The bioethics research conducted in Ibero-American countries has been very much restricted to its own realm. The aim of this study was to perform a bibliometric evaluation of bioethics papers by authors affiliated with Ibero-American institutions, and to determine how their work influences global bioethics literature. We performed a literature search in the Web of Science Core Collection (WoS CC) and Scopus. We identified a total of 5,975 documents, of which 84.3% were articles, 11.6% reviews and 4.1% book chapters. The median number of citations per paper was higher in English-language journals. Only 10 articles published between 2010 and 2019 in peer-reviewed bioethics journals and produced exclusively by authors from Ibero-American institutions garnered more than 15 citations. Our study suggests that if researchers from Ibero-American institutions want to influence global bioethical thinking, they must make the required leap in quality to be able to publish in high-quality bioethics and mainstream journals.
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http://dx.doi.org/10.1111/dewb.12309DOI Listing
February 2021

Worldwide research output trends on drinking and driving from 1956 to 2015.

Accid Anal Prev 2020 Feb 26;135:105364. Epub 2019 Nov 26.

Instituto de Estudios de Alcohol y Drogas (INEAD), University of Valladolid, Valladolid, Spain; Pharmacological Big Data Laboratory, Pharmacology, Faculty of Medicine, University of Valladolid, Valladolid, Spain. Electronic address:

This study seeks to analyze worldwide research activity on drinking and driving of macro-actors (countries and research fields) and meso-actors (institutions, journals, articles, co-substance(s) studied) during the last 6 decades (between 1956 and 2015). Web of Science and Elsevier Scopus were searched using terms referred to drinking and driving, including terms related to vehicles and way spaces. Overlapping was excluded and absence of false positives was confirmed. Articles on alcohol with/without other psychoactive substances were assessed quantitatively (bibliometric measures). Well identified by All Science Journal Classification system (ASJC) (Elsevier Scopus), an increase in the number of articles through the 6 decades analyzed was observed, from 152 (1956-1965) to 2302 (2006-2015), which represent an average decadal growth rate (ADGR) of 72.21. Among 89 countries, United States of America published 37.62 % out of all the included articles. Nevertheless, institutions from Canada, European Union and Australia published 50 articles or more during 60 years. The publications were mostly welcomed by journals on substance abuse research, and an exponential increase in publications on combined use of alcohol and other driving-impairing substances was observed since the second half of the eighties. This is the first study that attempted an analysis of scientific production of macro- and meso-actors on a topic belonging to an intricate research area. Bibliometric analyses should be considered as an important tool for updating the evidence on the serious problem of driving under the influence (DUI). The awareness of policy makers and the other relevant actors involved in the control of DUI of alcohol and other substances is stressed.
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http://dx.doi.org/10.1016/j.aap.2019.105364DOI Listing
February 2020

Trends in scientific research in Insights into Imaging: a bibliometric review.

Insights Imaging 2019 Aug 28;10(1):79. Epub 2019 Aug 28.

UISYS, Joint Research Unit, Universitat de València-CSIC, Palacio Cerveró, Plaza Cisneros, 4, 46003, Valencia, Spain.

Objectives: To analyse the coverage and main bibliometric indicators of Insights into Imaging in Scopus and the Emerging Sources Citation Index (ESCI) from the Web of Science Core Collection database.

Methods: The evolution of journal production in the Scopus database was analysed according to document types, collaboration indexes between authors and institutions, and citation indicators (number of citations, SCImago Journal Rank, quartile, h-index, and most cited works). Networks of collaboration among authors, institutions, and countries were also analysed, as well as those of co-word networks. As a complementary source of information, the Emerging Source Citation Index from the Web of Science database was also considered.

Results: Four hundred seventy-four papers were included in Scopus and 292 in ESCI. The index of collaboration was 5.18 for authors and 2.74 for institutions. International collaboration occurred in 24.7% of the papers. The number of citations received in Scopus (4295) exceeds the number of citations received in ESCI (1177). The average number of citations per paper was 9.06 in Scopus versus 4.03 in ESCI. The h-index was 29 in Scopus and 16 in ESCI. Several collaborative groups were identified at the national and international level.

Conclusions: There is a progression of Insights into Imaging in the ranking of journals in the area that, if maintained, will allow it to remain in the first quartile in the Scopus database. The main topics of interest were technologies such as 'Magnetic resonance imaging', 'Computed tomography', 'Radiology', and 'Ultrasonography' and diseases such as 'Breast cancer' and those related to 'Paediatrics'.
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http://dx.doi.org/10.1186/s13244-019-0766-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6712199PMC
August 2019

Bibliometric and academic network analysis of Spanish theses on drug dependence in the TESEO database.

Adicciones 2019 Sep 1;31(4):309-323. Epub 2019 Sep 1.

Departament de Sociologia i Antropologia Social. Universitat de València; UISYS, Unidad Mixta de Investigación, CSIC, Universitat de València, Valencia.

The present study aims to reveal the structure of positions in the field of addiction through the analysis of doctoral theses read in Spain. The source consulted for the selection of the theses was TESEO. Searching for the keywords drug abuse, alcoholism, drug effects and drug addiction treatment during the period 1976-2017 produced 728 theses. The most productive period is 2013-2017, with 208 (28.6%) doctoral theses. The overall rate of publication is increasing, but in the period 2003-2007 output decreased significantly to 5.2% of the total. The university contributing the most theses is the University of Valencia. The academic who has supervised the most theses is Alfonso Velasco Martín, and Emilio Ambrosio Flores is the researcher who has participated most on examining committees. The analysis of the participants in the doctoral thesis process shows a gradual increase of women in authorship, in thesis supervision and as examiners. In terms of subject, the most frequently treated aspects are those related to psychology, pharmacology and medical sciences.The analysis of doctoral theses on substance abuse provides an overview of the structure and the most influential participants in this area. Increasing public concern and the creation of specific groups and research units are reflected in the growth of scientific output.
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http://dx.doi.org/10.20882/adicciones.1150DOI Listing
September 2019

Productivity trends and collaboration patterns: A diachronic study in the eating disorders field.

PLoS One 2017 29;12(8):e0182760. Epub 2017 Aug 29.

INGENIO (CSIC-Universidad Politécnica de Valencia) & UISYS (CSIC-Universidad de Valencia), Valencia, Spain.

Objective: The present study seeks to extend previous bibliometric studies on eating disorders (EDs) by including a time-dependent analysis of the growth and evolution of multi-author collaborations and their correlation with ED publication trends from 1980 to 2014 (35 years).

Methods: Using standardized practices, we searched Web of Science (WoS) Core Collection (WoSCC) (indexes: Science Citation Index-Expanded [SCIE], & Social Science Citation Index [SSCI]) and Scopus (areas: Health Sciences, Life Sciences, & Social Sciences and Humanities) to identify a large sample of articles related to EDs. We then submitted our sample of articles to bibliometric and graph theory analyses to identify co-authorship and social network patterns.

Results: We present a large number of detailed findings, including a clear pattern of scientific growth measured as number of publications per five-year period or quinquennium (Q), a tremendous increase in the number of authors attracted by the ED subject, and a very high and steady growth in collaborative work.

Conclusions: We inferred that the noted publication growth was likely driven by the noted increase in the number of new authors per Q. Social network analyses suggested that collaborations within ED follow patters of interaction that are similar to well established and recognized disciplines, as indicated by the presence of a "giant cluster", high cluster density, and the replication of the "small world" phenomenon-the principle that we are all linked by short chains of acquaintances.
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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0182760PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5574555PMC
October 2017

Patterns and Trends in Scientific Research on Generic Drugs.

Clin Ther 2016 Dec 12;38(12):2684-2689.e1. Epub 2016 Nov 12.

Ingenio-Spanish National Research Council (CSIC) and UISYS-University of Valencia, Valencia, Spain.

Purpose: The purpose of this study to investigate the evolution and current status of peer-reviewed publications concerning generic drugs during the past few decades.

Methods: Scientific articles about generic drugs published until 2012 were retrieved through the PubMed/MEDLINE database, and a content analysis was performed.

Findings: Our study revealed an increasing number of publications on generics since 1984. Statins, antiretroviral therapies, and antiepileptics, followed by immunosuppressants and antithrombotic agents, were the most common therapeutic drug categories.

Implications: Almost 60% of the generics detailed in studies indexed in MEDLINE were acting on the cardiovascular system as anti-infectives and on the nervous system, which is not surprising considering the leading causes of death and disability worldwide.
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http://dx.doi.org/10.1016/j.clinthera.2016.10.010DOI Listing
December 2016

Bibliographic searches for a bibliometric analysis on drug addiction.

Eur Addict Res 2015 28;21(1):31-2. Epub 2014 Oct 28.

Centro de Investigación de Seguridad y Emergencias (CISE), Instituto Valenciano de Seguridad Pública y Emergencias (IVASPE), Conselleria de Gobernación y Justicia, Generalitat Valenciana, Valencia, Spain.

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http://dx.doi.org/10.1159/000365081DOI Listing
May 2015

Public availability of published research data in substance abuse journals.

Int J Drug Policy 2014 Nov 27;25(6):1143-6. Epub 2014 Jul 27.

Universidad Politécnica de Valencia, Camino de Vera, s/n, 46022 Valencia, Spain.

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http://dx.doi.org/10.1016/j.drugpo.2014.07.007DOI Listing
November 2014

[Productivity and impact of Spanish research into multiple sclerosis (1996-2010)].

Rev Neurol 2013 Apr;56(8):409-19

Servicio de Pediatría, Hospital General Universitario de Alicante.

Aims: To quantify by means of bibliometric indicators the scientific productivity of Spanish researchers and institutions that publish on multiple sclerosis in national and international journals during the period 1996-2010, and to determine their impact.

Materials And Methods: Papers under study were obtained from Web of Science and Scopus international databases, as well as IBECS and IME national databases, applying specific search profiles in each.

Results: 1613 articles were published in 460 journals, of which 71 were Spanish and 389 non Spanish, being the most productive Revista de Neurologia (n = 204), Multiple Sclerosis (n = 102) and Neurology (n = 97). The articles have been published mostly in English (71.92%) and Spanish (27.40%), participating 4728 authors from 1224 different institutions. The 67.08% of the papers have been cited at least once, but 32.92% have not received citations. The mean number of citations per paper was 12.47 ± 28.42. The most cited journals have been Neurology (n = 1821), followed by Multiple Sclerosis (n = 1124) and Journal of Neuroimmunology (n = 890).

Conclusions: The number of papers has increased steadily from 1996 to 2010, confirming the consolidation and growth of Spanish research in multiple sclerosis, whose results are published in a Revista de Neurologia and Multiple Sclerosis. We emphasize the growing internationalization of the Spanish research on the disease, but it is worrying that a third of the papers has not been cited.
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April 2013

Scientific publications and research groups on alcohol consumption and related problems worldwide: authorship analysis of papers indexed in PubMed and Scopus databases (2005 to 2009).

Alcohol Clin Exp Res 2013 Jan 13;37 Suppl 1:E381-93. Epub 2012 Sep 13.

Unidad de Investigación Social y Sanitaria, Universitat de Valencia, Valencia, Spain.

Background: The research of alcohol consumption-related problems is a multidisciplinary field. The aim of this study is to analyze the worldwide scientific production in the area of alcohol-drinking and alcohol-related problems from 2005 to 2009.

Methods: A MEDLINE and Scopus search on alcohol (alcohol-drinking and alcohol-related problems) published from 2005 to 2009 was carried out. Using bibliometric indicators, the distribution of the publications was determined within the journals that publish said articles, specialty of the journal (broad subject terms), article type, language of the publication, and country where the journal is published. Also, authorship characteristics were assessed (collaboration index and number of authors who have published more than 9 documents). The existing research groups were also determined.

Results: About 24,100 documents on alcohol, published in 3,862 journals, and authored by 69,640 authors were retrieved from MEDLINE and Scopus between the years 2005 and 2009. The collaboration index of the articles was 4.83 ± 3.7. The number of consolidated research groups in the field was identified as 383, with 1,933 authors. Documents on alcohol were published mainly in journals covering the field of "Substance-Related Disorders," 23.18%, followed by "Medicine," 8.7%, "Psychiatry," 6.17%, and "Gastroenterology," 5.25%.

Conclusions: Research on alcohol is a consolidated field, with an average of 4,820 documents published each year between 2005 and 2009 in MEDLINE and Scopus. Alcohol-related publications have a marked multidisciplinary nature. Collaboration was common among alcohol researchers. There is an underrepresentation of alcohol-related publications in languages other than English and from developing countries, in MEDLINE and Scopus databases.
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http://dx.doi.org/10.1111/j.1530-0277.2012.01934.xDOI Listing
January 2013

[Evolution and scientific impact of research grants from the spanish society of cardiology and spanish heart foundation (2000-2006)].

Rev Esp Cardiol 2011 Oct 1;64(10):904-15. Epub 2011 Jul 1.

Unidad de Información e Investigación Social y Sanitaria-UISYS, CSIC-Universidad de Valencia, Valencia, España.

Introduction And Objectives: The Sociedad Española de Cardiología (Spanish Society of Cardiology) every year awards grants to finance research in the field of cardiovascular diseases. The aim of this study is to identify the impact of these investments during the period 2000-2006 from the subsequently published articles in scientific journals.

Methods: Using the identifying data of each project as search terms, all articles that resulted from these grants were located in the Spanish Índice Médico Español and Índice Bibliográfico Español en Ciencias de la Salud databases, and in Science Citation Index-Expanded and Scopus. Descriptive statistical analysis of these articles included type of grant, number and amount awarded per year, and the recipient's sex and institutional affiliation.

Results: The Sociedad Española de Cardiología awarded €3,270,877 to 207 recipients, an average annual total of €467,268. We identified 231 publications that resulted from 123 (59.42%) of these grants. The average number of articles per grant awarded was 1.12, and 1.9 when taking into account only the awards that led to publication.

Conclusions: During the period 2000 to 2006, the Sociedad Española de Cardiología/ Fundación Española del Corazón (Spanish Heart Foundation) provided about €500,000 per year to fund research grants, thereby contributing to the fight against cardiovascular diseases. Almost 60% of grants have led to publications, 73% of which were published in international journals, and 91.34% in national or international journals with an impact factor in the Journal Citation Reports.
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http://dx.doi.org/10.1016/j.recesp.2011.03.024DOI Listing
October 2011

Perception and consumption of alcohol among the immigrant population from Latin America in Valencia region (Spain).

Subst Use Misuse 2010 Dec;45(14):2567-78

Instituto de Historia de la Ciencia y Documentación López Piñero, Consejo Superior de Investigaciones Científicas, University of Valencia-CSIC, Valencia, Spain.

This study examines patterns of alcohol consumption among the Hispanic immigrant population in Valencia (Spain), and also whether the length of immigrants' residence in our country and perceived degree of discrimination have any influence on such patterns. A total of 610 Spanish-speaking immigrants (314 women, 296 men) over 15 years of age, from six Hispano-American countries were interviewed in 2006; 76.8% had consumed alcohol in the previous 12 months; 37.6% drink more alcohol in Spain than in their country of origin. This study shows the need to develop specific programs for the immigrant population, with special consideration for the young, males, and smokers. The study's limitations are noted.
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http://dx.doi.org/10.3109/10826080903550554DOI Listing
December 2010

Quality of life, needs, and interest among cocaine users: differences by cocaine use intensity and lifetime severity of addiction to cocaine.

Subst Use Misuse 2011 24;46(4):390-7. Epub 2010 Aug 24.

Unidad de Información e Investigación Social y Sanitaria (UISYS) (Universitat de València-CSIC), Valencia, Spain.

We examined the quality of life (QoL) of 149 patients who were recruited in 2005 at outpatient treatment centers for cocaine dependence in Spain. Important life areas and life areas with potential need and interest to change in order to improve the QoL were analyzed in terms of patients? cocaine use intensity within the previous six months and lifetime severity addiction to cocaine. The Spanish versions of the Drug User Quality of Life Scale and the Lifetime Severity Index for Cocaine were used to measure QoL, needs and interest, and severity addiction to cocaine. The data analysis employed t-tests, linear regression, Mann?Whitney U tests, multivariate regression, and chi-square tests. Tailoring treatment programs to address the life areas that are considered relevant to cocaine users considering their intensity of consumption and lifetime severity addiction to cocaine may improve retention and treatment outcomes. Further research needs to consider patients of different ethnic backgrounds and cultural contexts. The study's limitations are noted.
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http://dx.doi.org/10.3109/10826084.2010.501675DOI Listing
July 2011

Predictors of driving after alcohol and drug use among adolescents in Valencia (Spain).

Accid Anal Prev 2010 Nov 22;42(6):2024-9. Epub 2010 Jul 22.

Dirección General de Drogodependencias, Conselleria de Sanitat, Generalitat Valenciana, Valencia, Spain.

Background: Driving under the influence of alcohol and drugs has been identified as a risk factor for road traffic crashes. We have assessed the prevalence and predictor factors for driving after alcohol and drug use by adolescents.

Methods: A cross-sectional survey involving 11,239 students aged 14-18 years from 252 private and public schools in the Valencia region of Spain was conducted. The prevalence and predictors of driving after alcohol use, alcohol and drug use, or drug use during the previous 6 months were measured.

Results: Of the students who reported driving (20%), 45.1% indicated driving after alcohol and drug use. The consumption of various drugs was higher among students who drove a vehicle compared with those who did not. The likelihood of driving after consuming alcohol, or alcohol and drugs, increased in line with the number of standard drink units per week, reports of any lifetime alcohol- or drug-related problems, and poor family relationship. In addition, masculine gender and early alcohol use increased the likelihood of driving after consuming alcohol.

Conclusions: Driving after alcohol and drug use is quite prevalent among adolescents in the Valencia region of Spain. There is a need for implementation of targeted policies for adolescents. This should focus on education and information on alcohol/drug use and driving.
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http://dx.doi.org/10.1016/j.aap.2010.06.013DOI Listing
November 2010

[Scientific productivity, collaboration and research areas in Enfermedades Infecciosas y Microbiología Clínica (2003-2007)].

Enferm Infecc Microbiol Clin 2010 Oct 8;28(8):509-16. Epub 2010 Apr 8.

Instituto de Historia de la Medicina y de la Ciencia López Piñero, Departamento de Historia de la Ciencia y Documentación, Universitat de València-Consejo Superior de Investigaciones Científicas, Valencia, España.

Introduction: Collaboration is essential for biomedical research. The Carlos III Health Institute (the Spanish national public organization responsible for promoting biomedical research) has encouraged scientific collaboration by promoting Thematic Networks and Cooperative Research Centres. Scientific collaboration in Enfermedades Infecciosas y Microbiología Clinica journal is investigated.

Methods: Papers published in Enfermedades Infecciosas y Microbiología Clinica in the period 2002-2007 have been identified. Bibliometrics and Social Network Analysis methods have been carried out in order to quantify and characterise scientific collaboration and research areas.

Results: A total of 805 papers generated by 2,289 authors and 326 institutions have been analysed. There were 36 research groups involving 138 authors identified. The Collaboration Index for articles was 5.5. Institutional collaboration was determined in 75% of articles. The collaboration between departments or units of the same institution prevails (43%), followed by intra-regional domestic collaboration (41%) and inter-regional domestic collaboration (14%). Hospital centres were the main institutional sector responsible of research (88% of papers), with 68% of articles cited. Sida/VIH (AIDS/HIV) is the main research area (n=114), followed by Staphylococcal Infections (n=33).

Conclusions: Notable collaboration and citation rates have been observed. Research is focused on diseases with the highest mortality rates caused by infectious diseases in Spain.
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http://dx.doi.org/10.1016/j.eimc.2009.12.011DOI Listing
October 2010

[Twenty years of Spanish psychological research in Psicothema (1989-2008)].

Psicothema 2010 Feb;22(1):41-50

Consejo Superior de Investigaciones Científicas - Universitat de València, Spain.

Twenty years of Spanish psychological research in Psicothema (1989-2008). Scientific collaboration and gender equality are two spheres of great interest for the organizations responsible for instigating scientific policies. We have identified the research groups and women's contribution to one of the most outstanding Spanish psychology journals. We have selected papers published during the 1989-2008 period in Psicothema. A bibliometric and network analysis was carried out using the Pajek Software tool. We have analysed 1,718 papers, written by 2,423 authors, 53.45% men and 47.54% women. We have identified 86 research groups made up of 293 researchers. We have observed a high increase of productivity and collaboration in the 1999-2008 period, as well as the consolidation, growth, and evolution of many incipient groups identified in the 1989-1998 period, benefiting from the increased interest and prestige of the journal. Despite the increase in the number of women, rising from 35.71% in 1989 to 48.48 in 2008, we have observed an imbalance with regard to productivity and the order of signatures, where women are relegated to intermediate positions.
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February 2010

Cardiovascular scientific production in Spain and in the European and global context (2003-2007).

Rev Esp Cardiol 2009 Dec;62(12):1404-17

Unidad de Información e Investigación Social y Sanitaria-UISYS, CSIC-Universidad de Valencia, España.

Introduction And Objectives: The publication of research articles has increased considerably in recent years in all biomedical fields. The present study examines the position of Spanish quality research in cardiology in the European and world context, and its evolution during the 5-year period 2003-2007.

Methods: Using the Science Citation Index Expanded of Thomson Reuters as data source, we compared Spanish cardiovascular scientific production with that of the rest of countries in the European Union and of the most important countries worldwide, along with relative productivity as per number of inhabitants and Gross Domestic Product, and the number of citations in the journals of the area of the Journal Citation Reports (CCS-JCR).

Results: Spain ranks sixth in the European Union and ninth worldwide in scientific production (tenth worldwide if only the journals of the first quartile of the CCS-JCR area are considered). As regards the number of citations received, Spain ranks seventh in the European Union and eleventh worldwide. In terms of relative productivity as per number of inhabitants and Gross Domestic Product, the Spanish ranking is less favorable (positions 15 and 18, respectively).

Conclusions: The ranking of Spanish cardiovascular research is similar to that of other biomedical fields, though its position is less favorable in relation to certain demographic and economical indicators. In order to maintain adequate investigational levels, it is necessary for the European governments and scientific societies to regard the promotion of high-quality cardiological research as a priority concern.
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http://dx.doi.org/10.1016/s1885-5857(09)73535-2DOI Listing
December 2009

An analysis of abstracts presented to the college on problems of drug dependence meeting and subsequent publication in peer review journals.

Subst Abuse Treat Prev Policy 2009 Nov 4;4:19. Epub 2009 Nov 4.

Instituto de Historia de la Ciencia y Documentación López Piñero, Universitat de Valencia-CSIC, Valencia, Spain.

Background: Subsequent publication rate of abstracts presented at meetings is seen as an indicator of the interest and quality of the meeting. We have analyzed characteristics and rate publication in peer-reviewed journals derived from oral communications and posters presented at the 1999 College on Problems of Drug Dependence (CPDD) meeting.

Methods: All 689 abstracts presented at the 1999 CPDD meeting were reviewed. In order to find the existence of publications derived from abstracts presented at that meeting, a set of bibliographical searches in the database Medline was developed in July 2006. Information was gathered concerning the abstracts, articles and journals in which they were published.

Results: 254 out of 689 abstracts (36.9%) gave rise to at least one publication. The oral communications had a greater likelihood of being published than did the posters (OR = 2.53, 95% CI 1.80-3.55). The average time lapse to publication of an article was 672.97 days. The number of authors per work in the subsequent publications was 4.55. The articles were published in a total of 84 journals, of which eight were indexed with the subject term Substance-Related Disorders. Psychopharmacology (37 articles, 14.5%) was the journal that published the greatest number of articles subsequent to the abstracts presented at the 1999 CPDD meeting.

Conclusion: One out of every three abstracts presented to the 1999 CPDD meeting were later published in peer-reviewed journals indexed in Medline. The subsequent publication of the abstracts presented in the CPDD meetings should be actively encouraged, as this maximizes the dissemination of the scientific research and therefore the investment.
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http://dx.doi.org/10.1186/1747-597X-4-19DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2777136PMC
November 2009

[Network of international scientific collaboration on smoking: analysis of coauthorship through the Science Citation Index (1999-2003)].

Gac Sanit 2009 May-Jun;23(3):222.e34-43. Epub 2009 May 23.

Servicio de Neumología, Hospital Central de la Defensa Gómez Ulla, Madrid, España.

Objective: The aim of this study was to analyze patterns of scientific collaboration and the visibility generated by coauthorship of articles on smoking among different countries on a world-wide basis through the Science Citation Index-Expanded (SCI-expanded) from 1999 to 2003.

Material And Methods: We selected articles on smoking resulting from collaboration among different countries in the SCI-Expanded (1999-2003). The underlying networks of collaboration among countries were analyzed by comparing production (number of articles published), visibility (number of citations received) and centrality (node degree, intermediation and proximity).

Results: A total of 3,484 articles were obtained, in which 5,008 institutions from 79 countries participated. The most productive country was the United Kingdom, with Germany and France in the second and third places. The United Kingdom also published the largest number of articles with inter-institutional collaboration (570 articles), with the USA and Germany in second and third places. The USA published the largest number of articles with international collaboration with the United Kingdom and France in the second and third places. All countries received a greater number of citations for articles resulting from international and inter-institutional collaboration than for those performed without collaboration. Networks of collaboration were completely connected through a single component and the annual increase in size of these inter-country networks was due to new countries joining the periphery of the network.

Conclusions: We found a positive correlation between international and inter-institutional collaboration and the number of citations received by articles on smoking research. The number of citations per year remained constant throughout the 5-year study period.
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http://dx.doi.org/10.1016/j.gaceta.2008.05.002DOI Listing
October 2009

[An analysis of Spanish scientific productivity in substance abuse according to disciplinary collaboration].

Adicciones 2008 ;20(4):337-45

Instituto de Historia de la Ciencia y Documentacion Lopez Pinero, Universitat de Valencia-CSIC, Valencia, Espana.

Objectives: The analysis of productivity and disciplinary collaboration patterns for Spanish published scientific research in the field of Substance Abuse (2001-2005).

Methodology: From institutional affiliations we identified and quantified disciplinary participation in papers indexed in the IME/Indice Medico Español, ISOC/Indice Español de Ciencias Sociales y Humanidades, SCI-Expanded/Science Citation Index-Expanded and SSCI/Social Sciences Citation Index databases.

Results: A total of 31 disciplines and specialities were identified in ISOC, with 8.6% of documents in collaboration between them; 55 medical specialities were identified in IME, with 10.89% of documents in collaboration between them; and 62 specialities were identified in SCI-Expanded, with 41.68% of documents in collaboration between them.

Conclusions: a) Substance Abuse, Psychology, Psychiatry, Epidemiology-Preventive Medicine and Public Health and Pharmacology are the disciplines and specialities that present the highest productivity. To these can be added, in papers published in foreign journals, specialities such as Biochemistry-Molecular Biology, Neurology and Neuroscience; b) Papers published in Spanish journals indexed in SCI-Expanded and in papers published in foreign journals present much higher collaboration indexes between disciplines and specialities; c) The main collaborations between specialities are those between Substance Abuse, Psychiatry and Psychology. To these can be added, in the case of journals indexed in SCI-Expanded, those between these specialities and Pharmacology, Neurology and Neuroscience.
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January 2009

[Alcoholic and cocaine-dependent women: a comparative study from a qualitative perspective].

Adicciones 2008 ;20(3):237-44

Departamento de Trabajo Social y Servicios Sociales, Facultad de Ciencias Sociales, Universidad de Valencia, Avenida de los Naranjos s/n, Valencia, Spain.

Objective: To analyze social behaviours of alcoholic and cocaine-dependent women.

Method: Six alcoholic women and six cocaine-dependent women in outpatient treatment made up the study sample. The technique used was that of life history interview. Data analysis was carried out based on Grounded Theory.

Results: Alcoholic women become dependent through progressive consumption, while cocaine-dependent women begin cocaine use as consequence of a particular event or incident; cocaine use among these women is also related to pleasure-seeking and to drug-dependent partners. There is a social stigma in drug-dependent women--more evident in alcoholics--related to non-fulfillment of tasks and roles that society imposes on women. The illness concept also appears more often in the discourse of alcoholic women than in that of cocaine addicts. As regards the family, it has a double meaning for these women: on the one hand, it is the first context to suffer the consequences of their drug abuse, through lies, petty theft and verbal aggression; on the other, the family is an important source of support in the initiation and process of treatment.

Conclusions: Drug abuse has specific social repercussions that should be taken into account in the establishment of appropriate help mechanisms.
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November 2008

[Drug consumption and perception among Latin American immigrants].

Psicothema 2008 Aug;20(3):403-7

Instituto de Historia de la Ciencia y Documentación López Piñero, Universitat de Valencia (CSIC), Valencia, Spain.

The aim of this study is to obtain information about drug consumption, leisure activities and knowledge of community services among Spanish-speaking immigrants to prevent drug abuse in this population. Quantitative methodology was used. The field work of this study has two phases: in the first stage (2003), a survey of social perception of drugs was administered to 147 subjects. During the second stage (2004), 610 surveys were administered. Data were analysed by bivariate analysis. Usual consumption of alcohol was 40.1%, usual consumption of tobacco was 31.3%, and usual consumption of cannabis was 3.4%. Drug users considered that the main reason for drug consumption was "to have fun" (p<.03). There is a relationship between leisure time and drug use. Family plays an important role in drug abuse prevention and preventive drug abuse programs must be adapted to this population.
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August 2008

Coauthorship networks and institutional collaboration patterns in reproductive biology.

Fertil Steril 2008 Oct 4;90(4):941-56. Epub 2008 Jan 4.

Instituto de Historia de la Ciencia y Documentación López Piñero, Universitat de València-CSIC, Valencia, Spain.

Objective: Reproductive biology is a highly productive area. By analyzing papers published in the major journals in the period 2003-2005, the collaborative patterns were characterized.

Design: Original research papers published in 2004 in the journals included in the first quartile of the category "Reproductive Biology" of the Journal Citation Reports (2005) were selected. A bibliometric analysis was carried out with the information obtained, thus building up the networks of coauthorship and institutional collaboration.

Result(s): A total of 4,702 papers were analyzed, 96.75% signed in collaboration by two or more authors, the authors per paper index being 5.24; 73.73% of the papers were collaborations between institutions. The U.S.A. and the U.K. headed the absolute productivity ranking in number of papers, and adapting the data with respect to the population, Israel, Australia, and other European countries, such as Finland, Belgium, Sweden, and The Netherlands, had notable contributions.

Conclusion(s): We identified the networks of authors who publish in the journals with the greatest impact factor. Only some of the most productive institutions have consolidated collaborative relationships with other institutions. We identified the scientific "isolation" of some countries which, although their productivity is high, have a small number of international collaborations.
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http://dx.doi.org/10.1016/j.fertnstert.2007.07.1378DOI Listing
October 2008

[Gender analysis among articles published in Enfermedades Infecciosas y Microbiología Clínica (2001-2005)].

Enferm Infecc Microbiol Clin 2007 Dec;25(10):619-26

Instituto de Historia de la Ciencia y Documentación López Piñero, Universidad de Valencia, CSIC, Valencia, Spain.

Background: There is growing concern for promoting equality between sexes and full integration of women in research activities. The purpose of this study is to identify the bibliometric characteristics of articles published during the 2001-2005 period in Enfermedades Infecciosas y Microbiología Clínica (EIMC) from the perspective of gender.

Method: EIMC records for 2001-2005 were obtained from the Science Citation Index database and differences according to sex were calculated for the following indicators: year of publication, type of document, number and order of author signatures, number of collaborators, and the signature/article index at the institutional and geographical level.

Results: A total of 2,163 authors were identified, 1,220 (56.4%) men and 943 (43.6%) women. The greatest of contribution from women was in original articles (42.32% of signatures). Excluding the Centro Nacional de Microbiología (Spanish National Center for Microbiology), the participation of women was lower than men in the most productive institutions. There were significant differences regarding the number of papers published and the number of collaborators; with greater productivity for men and a higher rate of collaboration for women.

Discussion: Studies on scientific activity according to gender provide essential information to establish the basis for a policy of equality in this regard. A yearly increase of almost 1% was seen in the number of female authors contributing articles to the EIMC, which, if the trend continues, will result in parity in coming years. Nevertheless, the presence of women in positions of high productivity remains low. The causes of this difference should be identified and corrected.
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http://dx.doi.org/10.1157/13112937DOI Listing
December 2007

How can hepatitis C be prevented in the long term?

Int J Drug Policy 2007 Oct 24;18(5):338-40. Epub 2007 Jul 24.

Center for Drug Use and HIV Research, National Development Research Institutes, New York City, NY, United States.

Significant advances have been made in preventing HIV infection among injectors but we still know little about preventing hepatitis C (HCV). Both prevalence and incidence of hepatitis C can remain high among IDUs even in the context of widespread implementation of harm reduction programmes. We need to develop new ways to fill the knowledge gap regarding HCV prevention. One way is to learn from the experts--those IDUs who, after long-term injection in social milieus of high hepatitis C prevalence, nonetheless remain uninfected. We describe a recently commenced program of research that focuses on understanding the strategies, behaviours, and environmental factors associated with "staying safe". This represents a 180-degree turn in IDU research where the focus has traditionally been on risk. Since social, cultural and environmental factors, as well as the vagaries of human strategic discovery by drug users can vary among localities, researchers in four different contexts--New York City, Valencia, Sydney and London--are collaborating in parallel Staying Safe studies. These studies aim to provide the conceptual basis for developing a new generation of HCV prevention programs to assist both new and experienced IDUs to remain uninfected over the long run.
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http://dx.doi.org/10.1016/j.drugpo.2007.06.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2117625PMC
October 2007

[Gender and accessibility barriers to treatment in alcohol abuse patients in the Autonomous Region of Valencia].

Adicciones 2007 ;19(2):169-78

Agencia Valenciana de Salud, Conselleria de Sanitat, Generalitat Valenciana.

Introduction: This study aimed at identifying the factors that contribute to delaying the access of alcohol abuse patients to specific treatment centres in the Autonomous Region of Valencia (Spain).

Method: 563 patients from Addictive Behaviours Units (UCA) and Alcohology Units (UA) were interviewed. A survey was conducted which included items on previous requested treatment in other centres and on barriers of accessibility to treatment in specific ambulatory centres. A descriptive analysis and t-student and ANOVA with Scheffé post-hoc tests were carried out.

Results: 59.7% of respondents said they had requested previous treatment in non-specific resources due to physical or psychical trouble that they now relate to their alcohol use although they did not do so at the time, in addition to being motivated by their own alcohol abuse (42.8%). The most attended resources were Primary Care and Specialist Unit Care. Women showed a higher demand for treatment in Mental Health Services (p < 0,05). The most important treatment barriers were included in the axis "unawareness of illness and related problems" (2.2; dt = 0,6). Women obtained higher scores in the axes "stigmatisation and environment response" and "treatment intrinsic factors".

Conclusions: gender differences in barriers that delay access to treatment do exist. It is necessary to build gender-adapted intervention guidelines to be used in Primary Care and Mental Health services to reduce the accessibility barriers to treatment.
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September 2007

[Gender analysis of Spanish scientific publications in the area of substance abuse in biomedicine 1999-2004].

Adicciones 2007 ;19(1):45-50

Instituto de Historia de la Ciencia y Documentación López Piñero, Universitat de València-CSIC, Valencia.

Background And Objective: Concern for encouraging gender equality makes it one of the high priority spheres of action for governments and organisations responsible for instigating scientific policies, with particular importance being placed on including the gender variable in evaluative analyses of scientific and technological activity. A comparative study was made, broken down by gender, of the scientific output of Spanish researchers with a high production in the field of substance abuse.

Material And Method: We identified the gender of 338 authors who had published more than four different articles during the period from 1999-2004 and which were indexed in the IME/Indice Médico Español and the SCI/Science Citation Index databases, making a comparative analysis of their output and collaboration patterns, based on the gender variable.

Results: In the area of substance abuse, of those with the highest output (> 9 papers), 70% were men compared with 30% women. Among the average producers (5-9 papers), 57% of the authors identified were men and 43% women. Statistically significant differences were observed between men and women with the highest output with regard to the number of published works and those with whom they had collaborated.

Conclusions: There is no gender equality in the area of substance abuse, particularly when considering the top researchers. It is essential to make in-depth studies that evaluate scientific output, broken down by gender, in order to adopt the necessary corrective measures to eliminate the disparity between men and women.
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September 2007

[Spanish medical center collaboration on smoking research from 1999 through 2003 according to the Science Citation Index].

Arch Bronconeumol 2007 Jul;43(7):378-85

Servicio de Cuidados Intensivos, Hospital General Básico de la Defensa Vázquez Bernabeu, Valencia, España.

Objective: To analyze the network structure of collaboration between medical centers sharing authorship of scientific articles on smoking.

Material And Methods: Articles reporting smoking research by authors from 2 or more Spanish medical centers between 1999 and the end of 2003 were identified through the Science Citation Index. The network of collaboration behind the research was analyzed and the most important measures of centrality were compared. To display the data, scientometric maps were constructed using UCINET and NETDRAW network analysis tools.

Results: Thirty-five Spanish medical centers (29 hospitals and 6 health care clinics) in 8 autonomous communities were involved in 21 collaborative research projects. Hospital de La Princesa was the network core institution with the highest degrees of nodal (16), closeness (88.66), and betweenness (39) centrality. Other core nodes in the network were the following hospitals: de Cruces, San Pedro de Alcántara, La Paz, Vall d'Hebron, and General Yagüe. The autonomous communities of Castile and Leon, Madrid, and Catalonia were assigned positions at the core of the intercommunity collaborative network based on coauthorship of scientific papers shared among their medical centers.

Conclusions: Network analysis helps identify the most influential institutions in a scientific community that generates coauthored articles in the field of smoking research. Hospital de la Princesa had the highest measures of centrality. The autonomous communities of Castile and Leon, Madrid, and Catalonia form a highly connected, cohesive subgroup within the network.
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http://dx.doi.org/10.1016/s1579-2129(07)60089-5DOI Listing
July 2007