Assessment of physicochemical characteristics and bioactive compounds of the essential oil of wild herbs aromatic from Andean region of South Perú.

Essential oils are a subject of study due to the heterogeneity of their components, which vary according to the genus and species of the plant material. The objective of this study was the physicochemical characterization and bioactive components of the essential oil (EO) extracted from wild punamuña (Satureja Boliviana) and runtuhuayra (Clinopodium Weberbaueri (Mansf.) Govaerts) herbs from high Andean areas of southern Peru.

Parental participation and parents' support: effects on mathematics achievement, 2018 national assessment of learning, Mexico.

The relationship between family involvement in students' academic activities, their learning, and academic achievement has been widely studied. Two different types of family involvement are recognized: parental participation, which is linked to activities implemented by the school, and parental support, which occurs at home and has to do with the family's educational practice. This study analyzed the influence of parental participation in school activities, parental support at home, and family socioeconomic status on student learning in mathematics.

Draft Genome Sequences of 29 Helicobacter pylori Strains Isolated from Colombia.

Here, we present the draft genome sequences of 29 Colombian strains. These strains were isolated in Bogotá, Colombia, from patients diagnosed with chronic gastritis. The genomic characterization of these strains will provide more information on the genetic composition of strains from Colombia.

Molecular Analysis of Polymyxin Resistance among Carbapenemase-Producing in Colombia.

Polymyxin resistance in has been attributed to mutations in , , , and and to the presence of plasmid-mediated genes. Herein, we describe the molecular characteristics of 24 polymyxin- and carbapenem-resistant isolates recovered from six Colombian cities between 2009 and 2019. Minimum inhibitory concentrations (MICs) to polymyxin were confirmed by broth microdilution, and whole-genome sequencing was performed to determine sequence type, resistome, and mutations in the genes related to polymyxin resistance, as well the presence of .

Toxin-antitoxin systems shows variability among Mycobacterium tuberculosis lineages.

The toxin-antitoxin (TA) systems are operons involved in the formation of persistent cells and in stress situations in microorganism. TA systems are widely distributed in Mycobacterium tuberculosis (MTB). The objective of this study was to determine the distribution and variability of protein sequences of TA systems in seven MTB lineages.