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Repositorio Biblioteca Virtual Ambiental (BVA)
La BVA es una colección de recursos educativos que tratan sobre temas ambientales, concernientes a el estado de Chihuahua, México, con el objetivo de facilitar el acceso al conocimiento ambiental de la zona. El repositorio de la BVA esta intencionado para beneficio de la sociedad y sin fines de lucro.

Recent Submissions

Uso de modelos de regresión para interpolar espacialmente la precipitación media mensual en la cuenca del río Conchos
(Revista Mexicana de Ciencias Agrícolas, 2018-03-08) Núñez López, Daniel; Treviño Garza, Eduardo Javier; Reyes Gómez, Víctor Manuel; Muñoz Robles, Carlos Alfonso; Aguirre Calderón, Oscar Alberto; Jiménez Pérez, Javier
Agua subterránea y soberanía interdependiente: el caso de los Sistemas Acuíferos Transfronterizos en la región binacional de Paso del Norte
(Norteamérica. Revista Académica del CISAN-UNAM, 2017-12-11) Hatch Kuri, Gonzalo
Mexico and the United States have a historic relationship in the political distribution of their transbor-der water. Nevertheless, with the deepening and importance of the North American Free Trade Agree-ment (nafta), transborder aquifer systems emerge as strategic reservoirs in the process of building water security on the border shared by the two nations. This article examines the case of Paso del Norte and the details of the competition for access and appropriation of transborder groundwater in recent decades based on asymmetrical institutional processes and mechanisms that have led to local political tensions. It also analyzes the implications and challenges Mexico must take on regarding the legal and institutional vacuums regulating these systems and reflects on the importance of designing a sovereign, interdependent water policy to foster cooperation for equitable distribution of transborder groundwater.
Propuesta de actividades ecoturísticas como parte del programa de Manejo Integral, Remediación, Restauración y Conservación de la Cuenca de la Laguna Bustillos, en Cuauhtémoc, Chihuahua; México
(Universidad Autónoma de Nuevo León, 2020-11) Elizalde Loya, Lydia Andrea
Análisis en series de tiempo para el pronóstico de sequía en la región noroeste del estado de Chihuahua
(Revista Ecosistemas y Recursos Agropecuarios, 2016-08-25) Villazón Bustillos, Daniel; Rubio Arias, Héctor Osbaldo; Ortega Gutiérrez, Juan Angel; Rentería Villalobos, Marusia; González Gurrola, Luis Carlos; Pinales Munguia, Adán
In 2011 it was presented one of the most devastating droughts in northern Mexico...
Presencia de microorganismos patógenos y genes de virulencia y resistencia a antibióticos en agua de riego en huertas de Chihuahua, Puebla y Veracruz
(Repositorio Académico Digital de la UANL, 2020/03) Castro Delgado, Zaira Lucero
In the last years, the rate of foodborne diseases has increased, derived from the healthiest consumption that individuals want, which implies that raw or underprocessed products are consumed, and these may be contaminated with pathogenic microorganisms. This contamination could come from various sources, such as soil, fertilizer use, handling or irrigation water, which often does not have a microbiological control. Escherichia coli (pathotypes), Salmonella spp, Enterococcus spp have been associated as pathogenic bacteria in water used to irrigation crops, increasing the possibility of causing foodborne diseases. Due to the importance to determine the presence of pathogenic microorganisms, such as Salmonella, Enterococcus, E. coli pathotypes (EHEC, EPEC, ETEC EAEC), in addition to their virulence and antibiotic resistance genes in irrigation water samples, we realize the isolation of these bacteria in waters used for irrigation supply or rivers located near farms in Veracruz, Chihuahua and Puebla. The bacterial confirmation of isolates was realized through virulence genes. Their antibiotic resistance profile to certain antibiotics and specific genes of resistance to the antibiotic was done. From 30 samples collected (10 in each state) the isolation of 496 presumptive were obtained, of which eight pathogens were identified by their virulence genes, two Enterococcus spp (eda+ , ccf+ , efa+ , gelE- ), two tEPEC (eae + , bfp+ ), one aEPEC (eae + , bfp- ) were isolated from Veracruz water samples, as well as two aEPEC (eae + , bfp- ) and one ETEC (lt+ ) from Puebla. No one presumptive isolated was confirmed as pathogen from samples of Chihuahua. From eight isolates, their phenotypic resistance to antibiotics was determined, of them, all were resistant to at least three antibiotics, vancomycin was the antibiotic with the highest resistance, the opposite case for trimethoprim and ciprofloxacin since no bacteria showed resistance. From these confirmed isolates we identify antibiotic resistance genes and only one was positive to tetA in the ETEC strain from Puebla.