Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

Introduction: Bioproduct’s development to beneficiate economic importance crops such rice, contributes directly to our food sovereignty. The objective of the work was: To obtain and characterize bacterial strains associated with two rice cultivars widely distributed in Cuba, in terms of their potential as Plant Growth Promoting Bacteria.Methods: Bacteria associated to the rhizosphere and seeds of INCA LP-5 and INCA LP-7 rice cultivars were isolated and identified by partial 16S rRNA sequencing. The strains were characterized in terms of potentialities as biofertilizers, phytostimulants, biocontrol, and attributes of infection and colonization. The endophytic capacity of a Rhizobium strain was studied in rice seedlings, from inoculation tests and confocal fluorescence microscopy. Inoculation experiments were carried out under controlled, semi-controlled and field conditions.Results: We isolated 43 strains; 24 from the rhizosphere and 19 from rice seeds and eight associated bacterial genera were identified: Rhizobium, Pantoea, Pseudomonas, Acinetobacter, Mitsuaria, Enterobacter, Bacillus and Paenibacillus. Some strains solubilized calcium and potassium phosphate, grew in nitrogen-free media, and produced siderophores, indole compounds, hydrolytic enzymes, and formed biofilms. The endophytic capacity of a Rhizobium strain was verified by systemic colonization of rice seedlings. The inoculation of some strains increased the content of nutrients, some biomolecules and rice plant growth. Furthermore, the crop yield enhanced between 30% - 80% with reduction of 40% - 60% of nitrogen fertilization. Conclusions, the research constitutes a contribution to the knowledge of Rhizobium-rice interaction and in the identification, characterization and selection of bacterial strains with potential for the development of bioproducts that positively impact the environment, the economy and the society.

The objective of this study was to characterize the Cuban research potential in the field of ataxias and its temporal evolution. A search was carried out in the Web of Science database and all the documents published from 1993 to 2020 were retrieved. Bibliometric indicators were applied to explore the production, dispersion, distribution and annual growth of the documents (Price's law, Lotka's law, transience index and Bradford model). The participation and collaboration index of countries and institutions was calculated and, through bibliometric cartography, the co-occurrence networks of the most used terms were explored. The Cuban scientific production on hereditary ataxias is high (219 documents) and it adjusts to a linear growth (r = 0.7580). The period studied concentrates 47.95% of the records with an annual publication rate of 6.6% and 10.8 years’ duplication time. The total number of citations was 3807 (mean index: 131.27; h-index: 31). Growth of the Cuban scientific literature on ataxias was concluded to be linear for the period studied, which confirms the non-compliance with Price's law of growth of scientific literature. The study also corroborates the important network of integration and international cooperation among the different authors and the interdisciplinarity of the papers, marking the success of the Center for Research and Rehabilitation of Hereditary Ataxias (CIRAH), when planning a strategy of scientific collaboration with objectives defined.

Los factores cuantitativos asociados a la publicación de tesis médicas en el pregrado no han sido lo suficientemente estudiados. Por ello, la investigación describió las tasas de publicación, así como la asociación con las características de las tesis, del asesor y del tesista. Se accedió, de manera virtual, a las tesis médicas de pregrado de la Universidad Nacional de San Agustín de Arequipa, Perú, durante el período 2011-2020. Mediante el análisis de regresión logística múltiple, se evaluó la asociación entre la publicación de la tesis en revistas indizadas (Scopus) y la experiencia previa en publicación en revistas indizadas en Scopus del asesor y del tesista, la unidad de análisis, el tamaño de muestra, diseño de estudio, número de páginas, aprobación por el comité de ética de investigación y el sexo del tesista. De 884 tesis solo 12 (1,5 %) se publicaron; lo que constituye el 1,23 % de las tesis publicadas anualmente, con tendencia constante. La experiencia previa en publicación del asesor se asoció con la colocación de las tesis en revistas indizadas (OR = 8,97 [1,70-42,98]; p = 0,005) y en revistas indizadas a Scopus (OR = 14,64 [1,24-336,11]; p = 0,037). Presentar la aprobación del comité de ética de la institución se asoció con publicar la tesis en revistas indizadas a Scopus (OR = 12,45 [1,06-285,94]; p = 0,050). La publicación de tesis médicas de pregrado en esta universidad es baja y constante. Se asoció con tener un asesor de tesis con experiencia previa en publicaciones en revistas indizadas a Scopus y a tener aprobación por comité de ética. Urge implementar estrategias para aumentar la publicación de tesis.

Scientific publication is the final stage of the investigative cycle, so the factors that are related to its elaboration in the undergraduate should be studied. The objective of the study was to determine the associated factors with the scientific publication of Dentistry students from seven Cuban universities. A multicenter, observational, cross-sectional study with secondary data analysis was designed. The achievement of scientific publications, other socio-educational variables and participation in scientific matters were investigated. Adjusted prevalence ratios, 95% confidence intervals (95% CI) and p-values were obtained using generalized linear models. Seven hundred thirty-eight (738) students were surveyed; 9.3% of them declared having published at least one scientific article. The average number of publications was 9% among all universities; the highest percentage was that of Universidad de Ciencias Médicas de Camagüey (19%) and the lowest that of Universidad de Ciencias Médicas de Granma (4%). There was a higher frequency of scientific publication among those who had participated in projects (RPa: 1.85; 95% CI: 1.18-2.88; p =0.007) and had obtained prizes in scientific events (RPa: 5.66 95% CI: 2.16-14.85, p < 0.001). It is concluded that there was low percentage of students who published, which was associated with participation in projects and obtaining prizes in scientific events.

O objetivo desta pesquisa foi analisar o nível de maturidade de Gestão do Conhecimento na Secretaria Municipal de Saúde da Prefeitura do município de Contagem, Minas Gerais, Brasil, aliando teoria e prática. A maturidade em Gestão do Conhecimento é estabelecida em 13 dimensões, que devem ser consideradas concomitantemente. Os métodos utilizados consistem na aplicação de um instrumento de pesquisa constituído por 39 afirmativas, dispostas em escala likert de cinco pontos, seccionadas em 13 constructos, os quais são analisados sob a ótica positivista, por meio dos critérios de Kaiser-Meyer-Olkin para dimensionalidade, Alfa de Cronbach para confiabilidade e r de Pearson junto ao p-Valor para validade, sendo adotadas Médias, Desvio Padrão e Intervalo de Confiança de 95 %. Os resultados indicam que a instituição se encontra no nível três de cinco, denominado Incipiente, caracterizado por buscar gerenciar o conhecimento e suas áreas críticas para seu sucesso. Para elevação ao nível quatro de cinco de maturidade, são sugeridas três ações para as dimensões, Estratégia, Liderança e suporte da Alta Administração, Equipe de Gestão do Conhecimento, Recursos (financeiro, humano, material e tempo), Processos e Atividades, Gestão de Recursos Humanos, Treinamento e Educação, Motivação, Trabalho em Equipe, Cultura, Mensuração e Projeto Piloto e duas ações para a dimensão Tecnologia da Informação, totalizando 38 ações para promoção da maturidade. Esta pesquisa contribuiu na busca por estudos empíricos sobre nível de maturidade de Gestão do Conhecimento e instiga novos estudos em diferentes instituições públicas.

Sentiment analysis or opinion mining is a branch of computing that allows analyzing opinions, feelings and emotions in certain areas of social interest such as products, services, organizations, companies, events and topics of current interest. In this sense, the objective of this paper was to identify the feelings and topics present in the tweets mentioning the Cuban vaccines Soberana 02 and Abdala on Twitter social network. The programming languages Python and R with their specific libraries for data science were chosen. The first part of the study, which ranged from web scraping to the quantification of the most used words, was carried out with Python and the libraries tweepy, pandas, re, nltk and matplotlib. While the second, which was the sentiment analysis and topic detection, was implemented with R and used tokenizers, tm, syuzhet, topic modeling, tidyverse, barplot, and wordcloud. It was obtained that among the terms with which there is more dialogue on Twitter are doses, vaccines, efficacy, Cubans, candidates, millions, country, people, received and population. In the tweets, the predominant emotions were fear and confidence, slightly above it; in the polarity, the positive one predominated, as an expression of the lived context in which the vaccination campaign was developed. A consensus can be perceived around the vaccines Soberana 02 and Abdala, from the identified topics and the terms that were related to the predominant emotions, as well as the polarity.

A design proposal of Virtual Program in Archiving and Business Intelligence is presented for Universidad de La Salle, in Bogotá, Colombia. Said proposal is assumed as a disruptive curricular exercise, since it is intended to generate articulations between typically archival-informational-organizational knowledge and practices with the knowledge, methods and techniques of business intelligence and, with this, training a professional from an approach that enhances the strategic nature of decision-making in all kinds of institutions, in connection with socio-productive needs. The comparison of undergraduate programs, the analysis of conceptual and methodical trends of both fields, the characterization of the academic-professional demand for the virtual modality and the technical-curricular-regulatory criteria of Colombia National Ministry of Education, as well as the guidelines from the Universidad de La Salle were the major methodological elements. The main results are translated into the professional profile by competencies, learning outcomes, study plan and aspects of the curricular management of the proposed program. In conclusion, disruption is emphasized as the transversal element that must guide designing and planning academic programs in Information Sciences, which must offer alternatives that are in tune with social demands, shaped from the transformations produced by the digital technologies, in coordination with analytical processes of high added value in organizations.

El uso de Facebook plantea nuevos desafíos para la adopción del e-profesionalismo. En este estudio se describe la accesibilidad de los perfiles de Facebook en estudiantes de medicina de una universidad peruana, la divulgación de información personal y profesional y su asociación con el sexo y el año de estudio. A través de una búsqueda sistemática en Facebook, se localizaron los perfiles de los estudiantes de medicina de 2° a 7° año, utilizando perfiles ficticios. Se evaluó la presencia de diferentes tipos de información en los perfiles accesibles. Se calculó la proporción del contenido divulgado. Los datos se compararon, según año de estudio y sexo. El 80 % de los estudiantes (488/611) tenían perfiles de acceso público, aunque estos no fueron significativamente diferentes, según el año de estudio (p = 0,098) y el género (p = 0,912). La proporción de contenido divulgado fue mayor en los años superiores: 2º y 3º (p = 0,022), 2º y 6º (p < 0,001), 2º y 7º (p = 0,002) y en hombres (33,25 ± 12,47) frente a las mujeres (30,38) ± 11,95) (p = 0,01). Las fotos (p = 0,009) y los enlaces a otros sitios de redes sociales (p = 0,036) fueron más visibles en los perfiles de las mujeres, mientras que mostrar la universidad (p = 0,017), la facultad de medicina (p = 0,043) y la orientación sexual (p = 0,001) era más común entre los hombres. La mayoría de los perfiles de Facebook de los estudiantes de medicina fueron accesibles, el contenido divulgado fue mayor en los estudiantes de último año y del sexo masculino. Es necesario crear e implementar lineamientos sobre el e-profesionalismo en América Latina.

The need to promote research in orthodontics and to carry out an analysis of the articles published in the Cuban web, with the purpose of knowing their bibliometric characteristics, is increasing. The present study aimed at characterizing the scientific production on orthodontics, published in professional biomedical journals sponsored by Cuban medical universities between January 2015 and August 2021. A bibliometric, observational, descriptive, longitudinal, descriptive study of the scientific productivity about Orthodontics published in these journals was carried out. The reference manager Zotero was used to process the metadata and VOSviewer to analyze the co-authorship networks. A total of 158 articles were ascertained; 15.19% were published in Medisan and the most productive year was 2015. Original articles predominated (67.72%), with multiple authorship (five authors), female gender (76.41%), authors of Cuban nationality (98.38%) and from Santiago de Cuba/Cuba (15.19 %). A total of 2665 references were used with a Price index of 0.53. Interceptive orthodontics (33.54%) was the most common subject area. The articles received a total of 1041 citations in Google Scholar. The analysis of the co-authorship network made it possible to establish 13 clusters, where 106 authors were visualized, with 282 links and a total strength of attraction among them of 97. It is necessary to achieve the indexing of these journals in large databases in order to increase the visibility and impact of the articles.

Las cardiopatías congénitas conforman el grupo de las malformaciones innatas más comunes, siendo vital su detección temprana. Este estudio tuvo por objetivo caracterizar las publicaciones acerca de los métodos para la detección de cardiopatías congénitas en neonatos a partir de tres categorías: las características generales de las investigaciones, la información de los investigadores y la definición y características de las metodologías practicadas. Para tal efecto, y con ayuda de tablas dinámicas de MS Excel 16.52 y el software VOSviewer 1.6.17, se llevó a cabo una revisión sistematizada que permitió recopilar 63 artículos publicados entre 2010 y 2021 en Scopus, Web of Science y PubMed. Los hallazgos evidencian que la producción académica ha ido incrementándose desde el 2018, teniendo a Estados Unidos a la vanguardia de esta y siendo la ecocardiografía y la oximetría los procedimientos más estudiados. La comparación entre las metodologías advierte que la detección por oximetría es la más destacable, en cuanto a los factores evaluados. Esta investigación abre nuevas líneas de indagación en la materia con la finalidad de desarrollar y aplicar nuevas metodologías o perfeccionar las ya existentes para que se ajusten a las necesidades de la población.