RESUMEN
The green microalga Chlamydomonas reinhardtii is a model microorganism for several areas of study. Among the different microalgae species, it presents advantageous characteristics, such as genomes completely sequenced and well-established techniques for genetic transformation. Despite that, C. reinhardtii production is still not easily commercially viable, especially due to the low biomass yield. So far there are no reports of scientometric study focusing only on C. reinhardtii biomass production process. Considering the need for culture optimization, a scientometric research was conducted to analyze the papers that investigated the growth regimes effects in C. reinhardtii cultivation. The search resulted in 130 papers indexed on Web of Science and Scopus platforms from 1969 to December 2022. The quantitative analysis indicated that the photoautotrophic regime was the most employed in the papers. However, when comparing the three growth regimes, the mixotrophic one led to the highest production of biomass, lipids, and heterologous protein. The production of bioproducts was considered the main objective of most of the papers and, among them, biomass was the most frequently investigated. The highest biomass production reported among the papers was 40 g L-1 in the heterotrophic growth of a transgenic strain. Other culture conditions were also crucial for C. reinhardtii growth, for instance, temperature and cultivation process.
Asunto(s)
Chlamydomonas reinhardtii , Microalgas , Chlamydomonas reinhardtii/genética , Chlamydomonas reinhardtii/metabolismo , Biomasa , Microalgas/metabolismoRESUMEN
The growth and popularization of platforms on scientific production has been the subject of several studies, producing relevant analyses of co-authorship behavior among groups of researchers. Researchers and their scientific productions can be analysed as co-authorship social networks, so researchers are linked through common publications. In this context, co-authoring networks can be analysed to find patterns that can describe or characterize them. This work presents the analysis and characterization of co-authorship networks of academic Brazilian graduate programs in computer science. Data from Brazilian researchers were collected and modeled as co-authoring networks among the graduate programs that researchers take part in. Each network topology was analysed with complex network measurements and three proposed qualitative indices that evaluate the publication's quality. In addition, the co-authorship networks of the computer science graduate programs were characterized in relation to the assessment received by CAPES, which attributes a qualitative grade to the graduate programs in Brazil. The results show the most relevant topological measurements for the program's characterization and the evaluations received by the programs in different qualitative degrees, relating the main topological patterns of the co-authorship networks and the CAPES grades of the Brazilian graduate programs in computer science.
Asunto(s)
Bibliometría , BrasilRESUMEN
O conhecimento da rede de pesquisadores que atuam na área de prevenção de drogas em contextos educacionais é uma forma possível de integralizar e compartilhar informações sobre o tema. O objetivo do estudo aqui apresentado é identificar esses pesquisadores, bem como suas produções acadêmicas, localização geográfica e participação nessa rede de colaboração científica. Para isto, realizou-se um estudo exploratório e descritivo com abordagem quantitativa. Identificaram-se 143 pesquisadores que publicam sobre o tema, sendo, em sua maioria, pesquisadores da área da saúde que colaboram com um ou mais membros da rede. Foram obtidas 154 publicações sobre o tema. A análise da rede evidenciou maior articulação e parcerias entre os pesquisadores da área da saúde, e nenhum relacionamento destes com os pesquisadores da educação. Desta forma, conclui-se que o tema em questão necessita de maiores parcerias e integralidades de informações entre os campos do conhecimento envolvidos, para que a ciência produzida no âmbito acadêmico culmine em ações práticas mais eficazes para a prevenção de drogas em contextos educacionais.
The knowledge of the researcher network associated with the study of drugs prevention in educational contexts is a possible way of integrating and sharing information on the subject. The objective of the study presented here is to identify these researchers, their academic productions, geographical location, as well as their participation in this scientific collaboration network. To carry out this task, it was developed a study using an exploratory, descriptive and quantitative approach. We identified 143 researchers, that publish on the subject, mostly associated with the health studies, and collaborate with one or more members of the network. The method allowed to gather 154 publications on the subject. The analysis of the collaboration network showed a more substantial connection and partnership between the health researchers and no relationship between them and the education researchers. Thus the theme examined needs to establish further partnerships and to develop based on the integrality concept integrated information between the fields of knowledge involved in the matter so that the science produced in academic level can contribute to provide more effective practical actions aiming the drug prevention in educational contexts.
El conocimiento de la red de investigadores que actúan en el área de prevención de drogas en contextos educacionales es una forma posible de integrar y compartir informaciones sobre el tema. El objetivo del estudio presentado aquí es identificar esos investigadores, así como sus producciones académicas, la ubicación geográfica y su participación en esa red de colaboración científica. Para cumplir nuestro objetivo, desarrollamos una investigación exploratoria y descriptiva con abordaje cuantitativo. Encontramos 143 investigadores que publicaron sobre el tema, pertenecientes principalmente al área de la salud, que colaboraron con uno o más miembros de la red. Hemos obtenido 154 publicaciones sobre el tema. El análisis de la red mostró una mayor asociación y colaboración entre los investigadores del área de la salud, y se evidenció que no existe ninguna relación entre ellos y los investigadores del área de la educación. Así, el tema en cuestión necesita mayores colaboraciones entre los investigadores y integraciones (en el sentido del concepto de integralidad) de las informaciones entre los campos del conocimiento involucrados en el asunto para que la ciencia producida en el ámbito académico culmine en acciones prácticas más eficaces para la prevención de drogas en contextos educacionales.