Search

A bibliometric analysis was carried out on the production and publication of research papers related to the study of the management variable in the quality of education in Latin America. The purpose of the analysis proposed in this document is to know the main characteristics of the volume of publications registered in Scopus database during the period 2016-2021 in Latin American countries, achieving the identification of 1183 publications in total. The information provided by said platform was organized by means of tables and figures categorizing the information by year of publication, Country of Origin, Area of Knowledge and Type of Publication. Once these characteristics were described, a qualitative analysis was used to refer to the position of different authors on the proposed topic. Among the main findings of this research, it is found that Brazil, with 589 publications, is the Latin American country with the highest production. The area of knowledge that made the greatest contribution to the construction of bibliographic material referring to the study of management in the quality of education was Medicine with 538 published documents, and the type of publication that was most used during the period mentioned above was the journal article, representing 71% of the total scientific production.

Background: Rickettsiae are obligate intracellular Gram-negative bacteria that are the causative agent of rickettsioses and are spread to vertebrate hosts by arthropods. There are no previous reports of isolation of Rickettsia amblyommatis for Colombia. Methods: A convenience sampling was executed in three departments in Colombia for direct collection of adult ticks on domestic animals or over vegetation. Ticks were screened for the presence of Rickettsia spp. by real-time polymerase chain reaction (qPCR) amplifying the citrate synthase gene (gltA), and the positive sample was processed for isolation and further molecular characterization by conventional PCR. The absolute and relative frequencies were calculated for several tick species variables. All products from conventional PCR were further purified and sequenced by the Sanger technique. Representative sequences of 18 Rickettsia species were downloaded from GenBank. Consensus phylogenetic trees were constructed for the gltA, ompB, ompA, and htrA genes with 1000 replicates, calculating bootstrap values through the maximum likelihood method and the generalized time reversible substitution model in the MEGA 7.0 software program. Results: One female Amblyomma mixtum collected on vegetation was amplified by qPCR (gltA), indicating a frequency of 1.6% (1/61) for Rickettsia spp. infection. Sequence analysis of a rickettsial isolate from this tick in BLASTn showed 100% identity with gltA (340 base pairs [bp]), 99.87% for ompB (782 bp), 98.99% for htrA (497 bp), and 100% for ompA (488 bp) to R. amblyommatis. Concatenated phylogenetic analysis confirmed these findings indicating that the isolate is grouped with other sequences of Amblyomma cajennense complex from Panama and Brazil within the R. amblyommatis clade. Conclusions: This paper describes the isolation and early molecular identification of a R. amblyommatis strain from A. mixtum in Colombia. [ABSTRACT FROM AUTHOR]

Ophichthid eel genus Aplatophis includes two species restricted to the New World, one distributed in the western Atlantic (A. chauliodus) and the other in the tropical eastern Pacific (A. zorro). Aplatophis zorro is a little-known species that was described in Panama, Gulf of San Miguel, from the collection of a single mature male. This work constitutes the first record of the species in Colombian waters and extends its geographical distribution to more than 483 km south on the American continent. In addition, some morphometric variation of the species, which was only known from the Panamanian holotype, is provided. [ABSTRACT FROM AUTHOR]

Copyright of Ius Humani is the property of Ius Humani and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)