Abstract This article shows another perspective on indigenous migration, which occurs not only for economic and subsistence purposes but as part of the expansion of the development and dissemination of native cultures. Based on the interpretative framework of gender studies in migration, the migratory contexts of 32 Rarámuri women are analyzed, as well as their residential, labor, and multicultural relations, where important achievements are present, but discrimination is also evidenced. According to their trajectories, they faced situations of poverty, discrimination, abuse, and inequality in the three aspects analyzed. Nonetheless, they also experienced changes related to their socio-economic and personal well-being because of their incorporation into formal artisan activities, which has allowed them to contribute to the strengthening and diffusion of their culture, value their knowledge and generate income.
Resumen Este artículo presenta otra perspectiva de la migración indígena, que ocurre no sólo con fines económicos y de subsistencia, sino que es parte de la expansión del desarrollo y difusión de las culturas nativas. Para ello, con base en el marco interpretativo de los estudios de género en la migración, se analizan los contextos migratorios de 32 mujeres rarámuri, considerando aspectos residenciales, laborales y de relaciones multiculturales, en los que se hacen presentes logros importantes, pero también se evidencia la discriminación. Según sus trayectorias, ellas enfrentaron situaciones de pobreza, exclusión, abuso y desigualdad en las tres vertientes analizadas, pero también experimentaron cambios relacionados con su bienestar socioeconómico y personal, debido a que se incorporaron a actividades artesanales formales, lo que les ha permitido contribuir al fortalecimiento y difusión de su cultura, valorar sus saberes y generar ingresos.
ABSTRACT Quorum sensing is considered one of the most important discoveries in cell-to-cell communication. Although revealed in Bacteria, it has been identified as well as a mechanism present in the other two domains, Eukaryota and Archaea. This phenomenon consists mainly of an exchange and sensing of "words" produced by each cell: chemical signals known as autoinducers. The process takes places at high cell densities and confined environments, triggering the expression of specific genes that manifest in a determined phenotype. Quorum sensing has a fundamental importance in the organisms' fitness in natural ecosystems since it activates many of the traits needed by cells to survive under specific conditions, and thus a wide variety of chemical signals, which are detailed throughout the review, have evolved in response to the needs of an organism in the ecosystem it inhabits. As a counterpart, derived from the natural occurrence of quorum sensing, comes it's antagonistic process named quorum quenching. Acting in the exact opposite way, quorum quenching interferes or degrades the autoinducers confusing and stopping communication, hence affecting transcriptional regulation and expression of a specific phenotype. The main reasons for stopping this mechanism go from fading their own signals when perceiving scarce nutrients conditions, to degrading competitors' signals to take advantage in the ecosystem. Some of the most studied purposes and means known up to date to be used by cells for making quorum quenching in their ecosystems is what will be discussed along this review, offering information for future works on quorum quencher molecules bioprospection.