30 años de investigación en maltrato infantil: un análisis bibliométrico (1991-2020)

Introducción: el maltrato infantil es un problema global que afecta el desarrollo de los niños y las niñas, pudiendo tener consecuencias a lo largo de su vida. A pesar de la necesidad de investigar para erradicar este fenómeno, no se ha realizado una aproximación bibliométrica de sus avances recientes. Método: este estudio examinó 16 708 artículos sobre maltrato infantil indexados en la Web of Science entre 1991 y 2020 para establecer las tendencias de investigación. Resultados: el maltrato infantil es un campo activo, influenciado principalmente por Estados Unidos, Canadá y Reino Unido, y revistas de la categoría estudios de la familia, especialmente Child Abuse & Neglect. Los artículos más relevantes abordan el tema como parte de las Experiencias Adversas en la Infancia o se centran en su evaluación. Considerando los artículos más relevantes, los temas más estudiados (sujetos, investigación, maltrato y tipos de maltrato, familia y parentalidad, y trastornos) y los principales focos (maltrato, investigación, sexo, reportes y abuso sexual), es posible que el área se esté reestructurando desde la perspectiva del ecobiodesarrollo, con énfasis en el tratamiento y la prevención. Se discuten sus implicaciones teóricas y prácticas. Conclusiones: este estudio actualiza las tendencias de investigación en el campo del maltrato infantil, proporcionando un panorama comprensivo que sugiere una evolución hacia la integración de múltiples disciplinas y enfoques. Los resultados destacan la importancia de seguir investigando este problema global, así como la necesidad de evaluar las intervenciones existentes para reducir su impacto en el desarrollo de los niños y las niñas.

Introduction: Child abuse is a global problem that affects children's development and can have consequences throughout their lives. Despite the need to research to eradicate this phenomenon, there has not been a bibliometric approach to its recent advances. Method: This study examined 16,708 articles on child abuse indexed in the Web of Science between 1991 and 2020 to establish research trends. Results: Child maltreatment is an active field, mainly influenced by the USA, Canada and the UK, and journals in the family studies category, especially Child Abuse & Neglect. The most relevant articles address the topic as part of Adverse Childhood Experiences or focus on its assessment. Considering the most relevant articles, the most studied topics (subjects, research, maltreatment and types of maltreatment, family and parenting, and disorders) and the main foci (maltreatment, research, sex, reporting, and sexual abuse), it is possible that the area is being restructured under the ecobiodevelopmental perspective, with emphasis on treatment and prevention. Its theoretical and practical implications are discussed. Conclusions: This study updates research trends in the field of child maltreatment, providing a comprehensive overview that suggests an evolution toward the integration of multiple disciplines and approaches. The results highlight the importance of further research on this global problem, as well as the need to evaluate existing interventions to reduce its impact on children's development.

Publication performance and trends in temporomandibular disorders research: A bibliometric analysis.

BACKGROUND: Temporomandibular disorders (TMD) are common, can be both painful and non-painful, and encompass various conditions affecting the temporomandibular joint, the masticatory muscles or both TMD. Therefore, the purpose of this bibliometric analysis was to synthetically analyze citation performance in TMD, to address a more innovative method including details of article title, author keyword, KeyWords Plus, and abstracts. MATERIAL AND METHODS: Data used in this study were retrieved from the Clarivate Analytics Web of Science Core Collection, the online version of the Science Citation Index Expanded (SCI-EXPANDED) between 1992 and 2021. The distribution of key words in the article title and author­selected keywords were used to evaluate research trends. RESULTS: Of the 7,228 documents in SCI-EXPANDED, 6,138 documents met all inclusion criteria and were included in the final analysis, of which 4,945 were articles. The present bibliometric analysis of the articles published in the research filed of TMD revealed that orofacial pain, bruxism, chronic pain, and myofascial pain are the most commonly used keywords by the authors. Further, over the last 30 years 4,945 articles are published in the field of TMD, and the far most frequently cited study was published 8 years ago and handles the diagnostic criteria of TMD. The USA and Brazil were top two ranking productive countries of publication on TMD. The most productive journal was Journal of Oral Rehabilitation, followed by Cranio-The Journal of Craniomandibular & Sleep Practice and Journal of Oral & Facial Pain and Headache. The most productive authors were P. Svensson, R. Ohrbach, and F. Lobbezooas. The most productive institutes were Sao Paulo University (Brazil), Malmo University (Sweden), and Washington university (USA) CONCLUSION: Based on the outcome of this bibliometric study, the authors hope that both clinicians and researchers will have information to shape their future research focus, finding prominent institutions in their nearby area, or even to be stimulated to initiate new international or even multinational collaborations.

Bibliometrics of Sudanese scientific publications: Subjects, institutions, collaboration, citation and recommendations / Bibliometría de publicaciones científicas sudanesas: temas, instituciones, colaboración, citas y recomendaciones

Abstract Introduction: Sudan is the third largest country in Africa and has rich reserves of petroleum and other ground resources, but its per capita Gross Domestic Product is only $808 and researchers work in insufficient institutional facilities and with little funding. Previous studies about its scientific productivity have been limited to specific subjects and relatively short periods, with no large analyses until now. Objective: To analyze the scientific output of Sudan in depth, considering all research areas and several decades of scientific activity. Methods: We retrieved the documents with "Sudan" in field country in the Science Citation Index Expanded for the period 1900-2019. Results: We retrieved over 9 000 publications and found that most were articles; that citation was higher for review articles and book chapters, and that this index mostly covered articles in English. Beginning in 1972, the number of publications in this database has increased rapidly. The citation lifespan indicates slow growth in the Sudanese scientific literature, and collaboration is frequent both nationally and internationally, possibly because the scarce resources make collaboration almost compulsory. Most external collaboration is done with Saudi Arabia but citation is higher for articles resulting from international megaprojects, led by Europe and the USA, in which Sudanese researchers play secondary roles. Research focusses on applied technological subjects with little innovation value. Women play a smaller role in Sudanese science. Conclusions: Our recommendations for Sudanese science include increasing the number of women in leading research positions; providing funding directly to researchers (i.e., bypassing bureaucratic bodies); increasing basic research to avoid stagnation; training Sudanese researchers for leading positions; and identifying specific research areas where Sudan can lead in its region.

Resumen Introducción: Sudán es el tercer país más grande de África y tiene ricas reservas de petróleo y otros recursos terrestres, pero su Producto Interno Bruto per cápita es de solo $ 808 y los investigadores trabajan en instalaciones institucionales deficientes y con poca financiación. Los estudios previos sobre su productividad científica se han limitado a temas específicos y períodos relativamente cortos. Objetivo: Analizar la producción científica de Sudán en profundidad, considerando todas las áreas de investigación y varias décadas. Métodos: Recuperamos los documentos con "Sudán" como país de origen en el Science Citation Index Expanded para el período 1900-2019. Resultados: Hallamos más de 9 000 publicaciones y encontramos que la mayoría eran artículos; que fueron más citados los artículos de revisión y capítulos de libros, y que esta base de datos cubría principalmente artículos en inglés; desde 1972, el número de publicaciones en ella ha aumentado rápidamente. La vida útil de las citas indica un crecimiento lento en la literatura científica sudanesa, y la colaboración es frecuente tanto a nivel nacional como internacional, posiblemente porque los escasos recursos hacen que la colaboración sea casi obligatoria. La mayor parte de la colaboración externa se realiza con Arabia Saudita, pero hay más citas para los artículos resultantes de megaproyectos internacionales, dirigidos por Europa y Estados Unidos, en los cuales los investigadores sudaneses desempeñan papeles secundarios. La investigación se centra en temas de tecnología aplicada con poco valor de innovación. Conclusiones: Nuestras recomendaciones para la ciencia sudanesa incluyen aumentar el número de mujeres en altos puestos; proporcionar financiación directamente a los investigadores (sin pasar por organismos burocráticos); ir más allá de la investigación aplicada para evitar el estancamiento; capacitar al personal sudanés para puestos de liderazgo; e identificar áreas de investigación específicas donde Sudán puede liderar en su región.

Half a century of Sri Lanka research: Subjects, researchers, institutions, journals and impact (1973-2019) / Medio siglo de investigación en Sri Lanka: temas, investigadores, instituciones, revistas e impacto (1973-2019)

Abstract Introduction: Bibliometric analyses of research in Sri Lanka, a lower-middle income island nation in South Asia, has focused mainly on medical research, concluding that there is a need for increased research productivity and impact, and for local solutions to health concerns. There has been no general bibliometric analysis across scientific disciplines in the nation, or any study that covers a long period of time to identify general time trends. Objective: To measure and analyse Sri Lanka research by focusing on subjects, authors, institutions, journals and citation for half a century. Methods: We used an advanced search method to extract publications with the word "Sri Lanka" in the SCI-EXPANDED, and calculated indicators such as total citations from Web of Science Core Collection since publication year to the end of 2019, citations in 2019, and mean citations per publication. Journal data were taken from 2019 Journal Citation Report. Affiliation re-classification was done to ensure consistency regarding the origin of all publications. Publications were further analysed based on collaboration, and first and corresponding authorship. Results: We retrieved 16 069 publications in 19 document types (77 % articles). Corrections had the highest number of authors per publication (616) followed by articles (116). Four articles had more than 5 000 authors and 593 articles had more than 1 000 authors. The highest citations in this database were for international megaprojects where Sri Lanka authors played minor roles. The UK had the most collaborative articles with Sri Lanka (19 %). The articles were published in 3 051 journals across 177 Web of Science categories. The category of Public, environmental and occupational health, with 193 journals, had 6.7 % of all articles, followed by environmental sciences (6.6 %). Conclusion: Sri Lanka has an unusually strong pattern of participating as small role players in international megaprojects about health and physics. Sri Lanka authors should be encouraged to expand their horizons by researching non-applied fields that are the basis of all innovation; to strengthen their own journals so that they have better visibility and impact, and to improve their positions in international projects that are published in larger journals.

Resumen Introducción: Los análisis bibliométricos de la investigación en Sri Lanka, una nación insular de ingresos mediano-bajos en el sur de Asia, se han centrado principalmente en la investigación médica, concluyendo que existe la necesidad de aumentar la productividad y el impacto de la investigación, y de soluciones locales a los problemas de salud. No ha habido un análisis bibliométrico general de disciplinas científicas o algún estudio que cubra un período largo de tiempo para identificar tendencias generales. Objetivo: Medir y analizar la investigación de Sri Lanka centrándose en temas, autores, instituciones, revistas y citas, durante medio siglo. Métodos: Utilizamos un método de búsqueda avanzada para extraer publicaciones con las palabras "Sri Lanka" en el SCI-EXPANDED, y calculamos indicadores como el total de citas de Web of Science Core Collection desde el año de publicación hasta finales de 2019, citas solo en 2019, y media de citas por publicación. Los datos de revistas son del Journal Citation Report 2019. Revisamos manualmente las afiliaciones para garantizar su coherencia, y, de todos los tipos de publicación, analizamos en detalle los artículos en función de la colaboración y la autoría. Resultados: Hallamos 16 069 publicaciones en 19 tipos de documentos (77 % artículos). Las correcciones tuvieron el mayor número de autores por publicación (616), seguidas de los artículos (116 autores en promedio); cuatro artículos tenían más de 5 000 autores y 593 artículos tenían más de 1 000 autores. Las citas más altas en esta base de datos fueron para megaproyectos internacionales en los que los autores de Sri Lanka desempeñaron papeles menores. El Reino Unido tuvo más artículos colaborativos con Sri Lanka (19 %). Los artículos se publicaron en 3 051 revistas de 177 categorías del Web of Science. La categoría d Salud pública, ambiental y ocupacional, con 193 revistas, tuvo el 6.7 % del total de artículos, seguida de Ciencias ambientales (6.6 %). Conclusión: En Sri Lanka hay una tendencia inusual a participar como pequeños actores en megaproyectos internacionales sobre salud y física. Debería alentarse a quienes hacen ciencia en Sri Lanka a ampliar sus horizontes investigando campos no aplicados, que son la base de la innovación; a fortalecer sus propias revistas para lograr mayor visibilidad e impacto, y a mejorar su ubicación en proyectos internacionales que se publican en revistas más grandes.

Bibliometrics of Latin American research on COVID-19 in the first year of the pandemic: the main trends / Bibliometría de la investigación latinoamericana sobre COVID-19 en el primer año de la pandemia: principales tendencias

Abstract Introduction: An outbreak of the COVID-19 was appended in the central Chinese city of Wuhan in December 2019. Lots of related papers were published in the world since then. Objective: This study aimed to identify and analyze the characteristics of COVID-19 publications in the Science Citation Index Expanded (SCI-EXPANDED) published by Latin Americans in 2020. Methods: Documents including searching keywords in their title, abstract, or author keywords from SCI-EXPANDED were assessed. The analyzed aspects covered characteristics of document types, languages, Web of Science categories, and journals. Publication performances of countries and institutions were evaluated by six publication indicators and two citation indicators. Results: A lower percentage of articles and a higher percentage of Spanish language were found. Web of Science category of general and internal medicine published the most articles. The Clinics was the most popular journal. The Cadernos de Saude Publica and Revista da Associacao Medica Brasileira published the most publications and reviews, respectively. Brazil took a leading position in the six publication indicators. The University of São Paulo in Brazil was the most productive institution. Based on the number of citations from the Web of Science Core Collection since publication to the end of 2020, 10 most frequently cited publications were presented. In addition, the analysis of words in publication titles, author keywords, and KeyWords Plus was performed to find the main research focuses. Conclusions: In 2020, a total of 3 056 COVID-19 documents in SCI-EXPANDED were published by Latin Americans mainly in the Web of Science categories of 'general and internal medicine' and 'public, environmental and occupational health'. More letters and editorial materials and fewer articles were published in the first year of its outbreak. A higher percentage of Spanish and Portuguese publications was found. Brazil dominated the six publication indicators. The University of São Paulo in Brazil ranked top in all the six publication indicators while the Technological University of Pereira in Colombia had a higher impact for their first- and corresponding-author publications. Health and infection were the main research focuses.

Resumen Introducción: En diciembre de 2019 se produjo un brote de COVID-19 en la ciudad china de Wuhan. Desde entonces se publicaron muchos artículos relacionados en el mundo. Objetivo: Este estudio tuvo como objetivo identificar y analizar las características de las publicaciones de COVID-19 en el Science Citation Index Expanded (SCI-EXPANDED) realizadas por latinoamericanos en 2020. Métodos: Se evaluaron los documentos que incluían palabras clave de búsqueda en su título, resumen o palabras clave de autor del SCI-EXPANDED. Los aspectos analizados cubrieron las características de los tipos de documentos, los idiomas, las categorías de la Web of Science y las revistas. El rendimiento de las publicaciones de los países e instituciones se evaluó mediante seis indicadores de publicación y dos indicadores de citación. Resultados: Se encontró un bajo porcentaje de artículos y un mayor porcentaje en la lengua española. La categoría Web of Science de medicina general e interna fue la que más artículos publicó. The Clinics fue la revista más popular. Los Cadernos de Saude Publica y la Revista da Associacao Medica Brasileira fueron las que más publicaciones y revisiones publicaron, respectivamente. Brasil ocupó una posición destacada en los seis indicadores de publicación. La Universidad de São Paulo en Brasil fue la institución más productiva. Basándose en el número de citas de la Web of Science Core Collection desde la publicación hasta el final de 2020, se presentaron las 10 publicaciones más citadas. Además, se realizó el análisis de las palabras en los títulos de las publicaciones, las palabras clave del autor y KeyWords Plus para encontrar los principales focos de investigación. Conclusiones: En 2020, un total de 3 056 documentos COVID-19 en SCI-EXPANDED fueron publicados por latinoamericanos, principalmente en las categorías de la Web of Science de 'medicina general e interna' y 'salud pública, ambiental y ocupacional'. Se publicaron más cartas y materiales editoriales y menos artículos en el primer año de su aparición. Se encontró un mayor porcentaje de publicaciones en español y portugués. Brasil dominó los seis indicadores de publicación. La Universidad de São Paulo, en Brasil, ocupó el primer puesto en los seis indicadores de publicación, mientras que la Universidad Tecnológica de Pereira, en Colombia, tuvo un mayor impacto en sus publicaciones de primer y segundo autor. La salud y la infección fueron los principales focos de investigación.

Cuba Publications in the Science Citation Index Expanded: publication characteristics, institutions and journals / Publicaciones de Cuba en el Science Citation Index: características de la publicación, instituciones y revistas

Abstract Introduction: In contrast with other tropical countries, Cuba has been frequently studied from the point of view of scientometrics. It has been reported that Cuban researchers often failed to cite other Cuban researchers or to collaborate with them and that 78 % of the Cuban scientific output is published in Cuban journals and mostly missed by Scopus and the Web of Science. However, there are no recent comprehensive studies of science in Cuba. Objective: To quantify the Cuban scientific output, in all disciplines, until the beginning of 2021. Methods: We analyzed publications from Cuba, dated 1900 to 2021, that reached the index Science Citation Index Expanded. Results: We retrieved a total of 23 576 publications, mostly articles. In this particular database, English is the dominant language, and, over time, articles have become longer and increased the number of authors and references. Numerically, the leading institution is Universidad de La Habana. Research is strongly concentrated around medical subjects. Collaboration teams led by foreign authors have more citations recorded by the database, where the number of Cuban articles has decreased strongly since 2008. Conclusion: Our conclussions only apply to the fraction of Cuban science covered by the Science Citation Index Expanded (under 22 %). We recommend three main improvements: to increase collaboration among Cuban scientists; to expand research areas beyond medical subjects; and to improve the quality of Cuban journals.

Resumen Introducción: A diferencia de otros países tropicales, Cuba ha sido frecuentemente estudiada desde el punto de vista de la cienciometría. Se ha informado que los investigadores cubanos citan poco a otros investigadores cubanos, no colaboraron entre sí, y que el 78 % de la producción científica cubana se publica en revistas cubanas sin llegar a Scopus y la Web of Science. Sin embargo, no existen estudios recientes y generales de la ciencia en Cuba. Objetivo: Cuantificar la producción científica cubana, en todas las disciplinas, hasta inicios de 2021. Métodos: Analizamos publicaciones con dirección autoral de Cuba, fechadas de 1900 a 2021, únicamente en el Science Citation Index Expanded. Resultados: Hallamos 23 576 publicaciones, en su mayoría artículos. En esta base de datos en particular, el inglés es el idioma dominante y, con el tiempo, los artículos se han vuelto más largos y han aumentado el número de autores y referencias. Numéricamente, la institución líder es la Universidad de La Habana. La investigación se concentra fuertemente en temas médicos. Los equipos de colaboración dirigidos por autores extranjeros tienen más citas registradas en esta base de datos estadounidense, donde el número de artículos cubanos ha disminuido fuertemente desde 2008. Conclusión: Nuestras conclusiones solo se aplican a la fracción de la ciencia cubana cubierta por el Science Citation Index Expanded (menos del 22 %) . Recomendamos tres mejoras principales: incrementar la colaboración entre los científicos cubanos; ampliar las áreas de investigación más allá de los temas médicos; y mejorar la calidad de las revistas cubanas.

Scientific landscape and trend analysis of keloid research: a 30-year bibliometric review.

BACKGROUND: Keloids remain troublesome for clinicians because of the lack of standard therapy, and the underlying mechanisms are still unclear. Bibliometric analysis could be a powerful tool to comprehensively review research trends, evaluate publication performances and provide future perspectives. There is no bibliometric analysis focusing on keloid research. METHODS: Keloid related publications were searched in Web of Science Core Collection from the publication year 1990 to 2019. Bibliometric data were provided on document type, annual publication number, most productive journals, publication geography, top potential authors, and highly cited articles. The distribution of single words in article titles was analyzed to evaluate the main research focuses and determine their development trends. Word cluster analysis was further performed to detect emerging trends in keloid research. RESULTS: The number of annual articles increased from 24 in 1990 to 63 in 2006 and then increased sharply, reaching 139 in 2019. Dermatologic Surgery published the highest number of articles followed by Plastic and Reconstructive Surgery. The USA ranked top with six publication indicators and China had a dramatic increase in the annual number of articles since 2012. Recent research hotspots include underlying pathogenetic mechanisms, keloid treatment, and therapeutic effect evaluation. DISCUSSION: Keloids remain a research focus. Efforts will be continuously made to understand the underlying mechanism of keloid formation. Despite many treatment modalities, there is no gold standard for keloid treatment, and many efforts are being made in the exploration of new therapies. Moreover, it is foreseeable that objective measurement tools will have a higher status in the assessment of keloids and scars.

Bibliometrics of Cambodian Science: subjects, researchers and impact in the Science Citation Index Expanded / Bibliometría de la ciencia camboyana: temas, investigadores e impacto en el Science Citation Index Expanded

Abstract Introduction: Cambodia is a small agricultural tropical country for which only two small scientometric studies, published five years ago, were available until now. Objective: To identify, for Cambodian research, subjects, outlets, authors, institutions, citations and recommendations. Methods: The data were retrieved from the Science Citation Index Expanded (January 04, 2021) using the word "Cambodia" for the period 1972 to 2019. Results: We retrieved 3 689 documents: for the half century covered, the yearly presence of Cambodia in the index has grown strongly, to 325 articles and 6 555 authors in 2019 alone. Most documents are articles in English about health, particularly infectious and tropical diseases. Most international collaboration is done, by country, with the USA, France, and Thailand; and by institution, with Mahidol University, the Pasteur Institute and Oxford University. The most productive institutions are the Cambodian Ministry of Health and the Cambodian National Center for Parasitology. The main outlets are PLoS One, Malaria and PLoS Neglected Tropical Diseases. Cambodian articles are cited for up to 33 years, with a peak of 4.5 citations within the first two years. Those in English, or from well-funded foreign projects, have more citations in this particular index; especially if they are about malaria, hepatitis or influenza. Conclusions: The nature and impact of Cambodian science outside the SCI-EXPANDED remain unknown, but publications in that index have increased, concentrate on solving local problems, and depend heavily on international collaboration, following a well-known pattern of science in tropical countries. We suggest a funding system based on international peers who assign funds to the most productive researchers with minimal bureaucracy, so that local research is done on a greater variety of topics and with less participation of Cambodian researchers as low-level members in foreign projects.

Resumen Introducción: Camboya es un país tropical asiático pequeño y "subdesarrollado", con una economía basada en la agricultura, para el que hasta ahora solo estaban disponibles dos pequeños estudios cienciométricos, publicados hace cinco años. Objetivo: Identificar, para la investigación camboyana, qué se estudia; quién hizo la investigación; dónde y cuándo se publicó; y los factores que afectan su citación. Métodos: Usamos el Science Citation Index Expanded (4 de enero de 2021) utilizando la palabra "Camboya" y se limitaron al período 1972 a 2019. Resultados: Hallamos 3 689 documentos; durante el medio siglo cubierto, la presencia anual de Camboya en el índice ha aumentado considerablemente, con 325 artículos y 6 555 autores incorporados tan solo en 2019. La mayoría son artículos en inglés sobre salud, particularmente enfermedades infecciosas y tropicales. La mayor parte de la colaboración internacional se realiza, por país, con EE. UU., Francia y Tailandia; y por institución, con la Universidad Mahidol, el Instituto Pasteur y la Universidad de Oxford. Las instituciones más productivas son el Ministerio de Salud de Camboya y el Centro Nacional de Parasitología de Camboya. Las principales revistas son PLoS One, Malaria y PLoS Neglected Tropical Diseases. Los artículos camboyanos se citan hasta por 33 años, con un máximo de 4.5 citas en los dos primeros años. Los que son en inglés, o de proyectos dirigidos por el extranjero, tienen más citas en esta base de datos; particularmente si se trata de malaria, hepatitis o influenza. Conclusiones: La naturaleza y el impacto de la ciencia camboyana fuera del SCI-EXPANDED siguen sin conocerse, pero las publicaciones en ese índice han aumentado, se concentran en resolver problemas locales y dependen en gran medida de la colaboración internacional, siguiendo un patrón bien conocido en los países tropicales. Sugerimos un sistema de financiación basado en pares internacionales que asignen, con burocracia mínima, fondos a los investigadores más productivos, de modo que la investigación local se realice en una mayor variedad de temas y con una menor participación de investigadores camboyanos como miembros de bajo nivel en proyectos extranjeros.

Research trends and performances of breast reconstruction: a bibliometric analysis.

BACKGROUND: The need for postmastectomy breast reconstruction surgery has increased dramatically, and significant progress has been made both in implant and autologous based breast reconstruction in recent decades. In this paper, we performed a bibliometric analysis with the aim of providing an overview of the developments in breast reconstruction research and insight into the research trends. METHODS: We searched the Science Citation Index Expanded database and the Web of Science Core Collection for articles published between 1991 to 2018 in the topic domain, using title, abstract, author keywords, and KeyWords Plus. Four citation indicators TCyear, Cyear, C0 and CPPyear were employed to help analyse the identified articles. RESULTS: The number of scientific articles in breast reconstruction in this period steadily increased. It took most articles nearly a decade to hit a plateau in terms of citation counts. Plastic and Reconstructive Surgery, Annals of Plastic Surgery, and Journal of Plastic Reconstructive and Aesthetic Surgery published the largest number of articles on breast reconstruction. Nine of the top ten most prolific publications were based in the USA. The research highlights related to breast reconstruction were implant-based breast reconstruction, deep inferior epigastric perforator (DIEP) flap breast reconstruction, and superficial inferior epigastric artery (SIEA) flap breast reconstruction. CONCLUSIONS: This bibliometric analysis yielded data on citation number, publication outputs, categories, journals, institutions, countries, research highlights and tendencies. It helps to picture the panorama of breast reconstruction research, and guide the future research work.

Bibliometrics of Vietnam Publications in the Science Citation Index: general trends and comparison with other tropical countries

Introduction: The economy of Vietnam, a highly populated tropical country with a per capita gross domestic product of $ 8 000, is growing rapidly, but there are few recent studies of general scope about its scientific productivity and how it compares with other tropical countries. Objective: To identify trends in Vietnamese science and compare them with trends in other tropical countries. Methods: We extracted data about scientific papers, in all disciplines that had Vietnam as country in the Science Citation Index Expanded for the period 1991 to 2018, focusing on type of publication, language, subject, authorship, collaboration, and citations. Results: Vietnam publishes more document types than other tropical countries, and those in this particular database are mostly in English, albeit most Vietnamese science is published in Vietnamese and not covered by the index. The primary categories were multidisciplinary materials science, mathematics, and applied mathematics. Most collaboration was done with the USA, Japan, South Korea, and France. A large number of articles were published by the Vietnam Academy of Science and Technology, and the most frequent foreign collaboration was with the University of Oxford. Conclusion: The tropical countries of Latin America, Africa, and Asia studied in our project have some similarities but also crucial differences. Science is developing rapidly in Vietnam and the production of articles in Vietnamese, which represent the vast majority of research in the country but is not included in this database, should also be studied.

Introducción: La economía de Vietnam, un país tropical muy poblado con un producto interno bruto per cápita de $ 8000, está creciendo rápidamente, pero hay pocos estudios recientes y de enfoque general sobre su productividad científica y cómo se compara con la de otros países tropicales. Objetivo: Identificar tendencias en la ciencia vietnamita y compararlas con las tendencias en otros países tropicales. Métodos: Extrajimos datos sobre artículos científicos, en todas las disciplinas que tenían a Vietnam como "país" en el Science Citation Index Expanded para el período 1991 a 2018, centrándonos en el tipo de publicación, idioma, tema, autoría, colaboración y citas. Resultados: Vietnam publica más tipos de documentos que otros países tropicales, y los de esta base de datos en particular están principalmente en inglés, aunque la mayoría de la ciencia vietnamita se publica en vietnamita y no está cubierta por el índice. Las categorías principales fueron ciencia de materiales (estudios multidisciplinarios), matemáticas y matemáticas aplicadas. La mayor parte de la colaboración se realizó con EE. UU., Japón, Corea del Sur y Francia. La Academia de Ciencia y Tecnología de Vietnam publicó una proporción importante de estos artículos, y la colaboración extranjera más frecuente fue con la Universidad de Oxford. Conclusión: los países tropicales de América Latina, África y Asia estudiados en nuestro proyecto tienen tanto similitudes como diferencias importantes con Vietnam. La ciencia en Vietnam está en una etapa de crecimiento y convendría estudiar los artículos que se publican en vietnamita, los cuales representan la amplia mayoría de la ciencia del país, pero no se incluyen en esta base de datos.

Highly cited dental articles and their authors: An evaluation of publication and citation characteristics.

AIM: In the present study, we aimed to identify and analyze the characteristics of highly cited articles in dentistry. METHODS: All articles belonging to Web of Science category of "dentistry, oral surgery and medicine" published until 2016 were analyzed. The bibliometric data of the highly cited articles were evaluated. The Y-index was applied to assess authors' publication potential. Altmetric scores were recorded from Dimensions, a free online database. RESULTS: There were 3666 highly cited dentistry articles published in dental journals. Half of them were published in seven leading journals in their specialties. The major contributing countries were the USA, Sweden, the UK, and Switzerland. The highly cited articles were written by 3.7 authors on average. Jan Lindhe had the largest number of highly cited articles, whereas David H. Pashley had the highest potential to publish highly cited articles in dentistry. CONCLUSIONS: Highly cited articles were distributed among various dental specialties, and the most productive periods were the late 1990s and the early 2000s. The Y-index gave dimensional details of the prolific authors. The current analysis was based on data extracted from Web of Science. Results could be different if data were extracted from other databases, such as Google Scholar.

A bibliometric analysis of classic publications in web of science category of orthopedics.

BACKGROUND: The past century has witnessed the rapid development of operation technique, surgical instruments, and knowledge of the diseases in orthopedics. In the academic history, a number of classic papers boosted the advancement for surgery. In this paper, we performed a bibliometric analysis, aiming to determine the most influential studies within the field. METHODS: Articles were searched from the publication year of 1900 to 2016 according to the Science Citation Index Expanded database of the Clarivate Analytics Web of Science Core Collection database. Two citation indicators TCyear and Cyear were employed to characterize the classic articles and the articles were identified and analyzed. RESULTS: A total of 30 classic articles with TC2016 ≥ 1000 in Web of Science category of orthopedics were identified, all written in English between 1961 and 2007 by nine countries. The minimal value of TC2016 was 1010; the maximum 3570; and the average 1591. Thirty classic articles were published in eight journals that were listed in the Web of Science category of orthopedics in 2016, and in two other orthopedics journals that were no longer tracked by Web of Science category of orthopedics as of 2016. Among the top 10 cited articles in both TC2016 and C2016, five articles barely received attention in the first few years after their publication, while they became cited more and more frequently in the last decade. CONCLUSION: This study evaluated the development and trend of orthopedics research by adopting bibliometric analysis. It serves as a guide for investigators in the future research.

Molecular Responses of Cancers by Natural Products: Modifications of Autophagy Revealed by Literature Analysis.

Although numerous bibliometric studies have examined various aspects of cancer research, the landscape of scientific studies focusing on natural products in cancer research has not been characterized. Using the Web of Science Core Collection online database, we identify and analyze scientific articles on natural products in cancer-related research. English is the language of publication for 99% of articles. In general, annual citation count of an article increases quickly after publication, reaches a plateau in the second year, stays in this plateau for 10 yr, and then begins to fall. The five most contributing journal categories are medicinal chemistry, contributing the most at 1890 articles (24% of 8012 articles); oncology (20%, with 1572 articles); pharmacology and pharmacy (19%, with 1557); biochemistry and molecular biology (15%, with 1225); and plant sciences (11%, with 883 articles). The United States and Spain yield a larger number of articles with high average citations, and China has been increasing since 2009. Apoptosis and cytotoxicity are the two most-frequently used keywords. Effects of natural products on autophagy with a relevance to cancer are mentioned in 69 publications. Our literature analysis reveals a dynamically evolving landscape and an increasing volume of research investigations that are focused on the study of natural products in the context of cancer. Curcumin, flavonoids, and resveratrol are the most-frequently mentioned natural products. Cancer of the breast, prostate, and colon are the most-frequently mentioned cancers.

Brunei Publications in the Science Citation Index Expanded (1973-2016): Bibliometrics and comparison with other tropical countries / Publicaciones de Brunei en el Science Citation Index Expanded (1973-2016): Bibliometría y comparación con otros países tropicales

Abstract Brunei is a small tropical country -located in Southeast Asia- for which there are no previous bibliometric studies. Here we analyze papers published by Brunei scientists from 1973 to 2016 in the Science Citation Index Expanded and compare results with other tropical countries. We identified 1 547 publications and 11 document types. The most productive categories were ecology, multidisciplinary geosciences, inorganic and nuclear chemistry, and environmental sciences. Singapore Medical Journal published most of these papers, and the three most productive institutions were Universiti Brunei Darussalam, RIPAS Hospital, and Universiti Teknologi Brunei. UK and Malaysia were the most frequent collaborating countries. M.A. Ali from the Universiti Brunei Darussalam was the most prolific author and a Brunei independent article written by C.K. Morley from the Universiti Brunei Darussalam in 2002 had the highest number of citations of the whole period and the highest number in 2016. The tropical countries of Central America and Asia have a few similarities but also important differences, and both are highly heterogeneous in scientific organization and productivity. Rev. Biol. Trop. 66(3): 1090-1100. Epub 2018 September 01.

Resumen Brunei es un pequeño país tropical del sudeste asiático, sobre el cual no hay estudios bibliométricos. Aquí analizamos los artículos publicados por científicos de Brunei de 1973 a 2016 y comparamos los resultados con otros países tropicales. Examinamos los documentos del Science Citation Index Expanded en la colección principal del Web of Science. Hallamos 1 547 publicaciones de Brunei con 11 tipos de documentos, donde las categorías más productivas fueron ecología, geociencias multidisciplinarias, química inorgánica y nuclear, y ciencias ambientales. Singapore Medical Journal publicó la mayoría, y las tres instituciones más productivas fueron: Universiti Brunei Darussalam, RIPAS Hospital y Universiti Teknologi Brunei. Reino Unido y Malasia fueron los países que más colaboraron con Brunei. M.A. Ali de la Universidad Brunei Darussalam fue el autor más prolífico. El mayor número total de citas, y el mayor número de citas en 2016, correspondieron a un artículo exclusivamente de Brunei, escrito por C. K. Morley de la Universiti Brunei Darussalam en 2002. Los países tropicales de América Central y Asia tienen algunas similitudes pero también diferencias importantes, siendo heterogéneos en su organización científica y productividad.

Bibliometric analysis of Ghana publications in the Science Citation Index Expanded / Análisis bibliométrico de las publicaciones de Ghana en el Índice de Citación de Ciencia

Abstract Ghana is a West African country for which apparently there are limited scientometric studies. The objective of this study was to analyze the Ghanaian contribution to knowledge captured in the Thomson Reuters Science Citation Index Expanded (SCI-EXPANDED) database from 1936 - 2016. The following data were analyzed: document type, the language of publication, publication trend, Web of Science Subject Categories, Journals, international collaboration, institutions, authors, and highly cited articles. Indicators such as the total number of articles, first author articles, and corresponding author articles were applied to compare publication performance for collaborative countries and institutions. Also, number of single institute articles: number of nationally collaborative articles: number of internationally collaborative articles (S : N : I) were also used to compare publication characteristics of institutions in Ghana. Results showed that publication trend increased from 1998 to 2015, with researches focusing on health and medicine. PLoS One was the top productive journal, and the most collaborative country for Ghana articles was the USA. Contributions from the University of Ghana were ranked the top one institution for Ghana articles, and higher citation papers were found in international collaborations. In conclusion, the contribution to knowledge of Ghanaian authors is massive in the areas of public, environmental and occupational health and tropical medicine but the impact factor is higher for immunology, infectious diseases, and microbiology articles. Therefore, Ghanaian authors are encouraged to publish more articles in high impact factor journals with Thomson Reuters Scientific indexing in order to have their researches recognized by the existing international databases. Rev. Biol. Trop. 66(1): 106-121. Epub 2018 March 01.

Resumen Ghana es un país del oeste de África para el cual aparentemente hay limitados estudios cienciométricos. El objetivo de este estudio fue analizar la contribución de Ghana al conocimiento capturado en la base de datos del Índice de Citación Expandido de Ciencia Thomson Reuters (SCI-EXPANDED) de 1936-2016. Se analizaron los siguientes datos: tipo de documento, lenguaje de la publicación, tendencia de la publicación, categorías temáticas de Web of Science, revistas, colaboración internacional, instituciones, autores y artículos frecuentemente citados. Los indicadores como el número total de artículos, artículos de primer autor y artículos de autor de correspondencia se aplicaron para comparar el rendimiento de publicación de países e instituciones colaboradoras. También la cantidad de artículos de una institución: la cantidad de artículos de colaboración nacional: la cantidad de artículos de colaboración internacional (S:N:I) se utilizaron para comparar las características de publicación de las instituciones de Ghana. Los resultados muestran que la tendencia de publicación incrementó de 1998 al 2015 con investigaciones enfocadas en salud y medicina. PLoS One fue la revista más productiva y el país más colaborador para los artículos de Ghana fue EE.UU. Las contribuciones de la Universidad de Ghana se clasificaron como los mejores artículos de Ghana y los artículos con mayores citaciones fueron los de colaboración internacional. En conclusión, la distribución del conocimiento de autores Ghaneses es masiva en las áreas público, ambiental y salud ocupacional y medicina tropical pero el factor de impacto es más alto en artículos de inmunología, enfermedades infecciosas y microbiología. Por lo tanto, los autores Ghaneses están alentados a publicar más artículos en revistas de alto factor de impacto con el Índice de Citación Expandido de Ciencia Thomson Reuters para que sus publicaciones sean reconocidas por las bases de datos internacionales existentes.