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521
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522
Recent rapid rise of a permethrin knock down resistance allele in Aedes aegypti in México
Publicado 2009“…For example within the city of Chetumal, Quintana Roo, Ile1,016 frequencies varied from 38.3%–88.3%. A linear regression analysis based on seven collections from 2007 revealed that the frequency of Ile1,016 homozygotes accurately predicted knockdown rate for mosquitoes exposed to permethrin in a bioassay (R2 = 0.98). …”
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Artículo -
523
Diseño y construcción de un reactor hibrido tipo batch para la producción de biocombustibles: biodiésel y bioetanol como caso de estudio.
Publicado 2017“…In order to scale this parameter to reactor level, the RMA varied from 3: 1 and 6: 1 (6 molecules of methanol per 1 of oil used) and the time of 15, 30, 45 and 60 minutes of process obtaining as a result that with a RMA of 6: 1 with a time of 60 minutes a conversion of 100 % was obtained, all these experiments were carried out at a temperature of 60 ◦ C and 400 rpm. …”
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Tesis -
524
Evaluación de la expresión diferencial de citocinas proinflamatorias en un modelo murino de infección por distintos serotipos de Streptococcus agalactiae
Publicado 2020“…The cytokine expression profiles varied after infection with the different serotypes. …”
Enlace del recurso
Tesis -
525
Mecanismos de resistencia y perfil de expresion de genes involucrados en la resistencia a la deltametrina en poblaciones de Aedes aegypti (L.) (Diptera: Culicidae) en México
Publicado 2020“…The frequency of L410 increased from 1.18 to 2.63 for V1016 an increase was observed between 1.19 and 2.79 times, and C1534 was fixed in all strains after deltamethrin selection. Enzymatic activity varied significantly during the generations of selection. …”
Enlace del recurso
Tesis -
526
Estimación del contenido de carbono total de especies arbóreas y arbustivas en áreas con diferente uso histórico, en una fracción del matorral espinoso tamaulipeco, Linares, N. L....
Publicado 2008“…By a completely randomized ANOVA there were not any differences found in the average of total carbon content of the species (Pr < 0.0564), this content varied from 44.25 to 47.08% with an general average of 45.52%; Cordia boissieri (44.25 ± 1.52%) and Acacia farnesiana (44.52 ± 1.37%) in the site of Traditional Agriculture those were the species that were with the smallest values, Forestiera angustifolia (47.08 ± 1.27%) with highest in the site of Extensive Foraging. …”
Enlace del recurso
Tesis -
527
Diseño y construcción de un reactor hibrido tipo batch para la producción de biocombustibles: biodiésel y bioetanol como caso de estudio.
Publicado 2017“…In order to scale this parameter to reactor level, the RMA varied from 3: 1 and 6: 1 (6 molecules of methanol per 1 of oil used) and the time of 15, 30, 45 and 60 minutes of process obtaining as a result that with a RMA of 6: 1 with a time of 60 minutes a conversion of 100 % was obtained, all these experiments were carried out at a temperature of 60 ◦ C and 400 rpm. …”
Enlace del recurso
Tesis -
528
Evaluación de la expresión diferencial de citocinas proinflamatorias en un modelo murino de infección por distintos serotipos de Streptococcus agalactiae
Publicado 2020“…The cytokine expression profiles varied after infection with the different serotypes. …”
Enlace del recurso
Tesis -
529
Mecanismos de resistencia y perfil de expresion de genes involucrados en la resistencia a la deltametrina en poblaciones de Aedes aegypti (L.) (Diptera: Culicidae) en México
Publicado 2020“…The frequency of L410 increased from 1.18 to 2.63 for V1016 an increase was observed between 1.19 and 2.79 times, and C1534 was fixed in all strains after deltamethrin selection. Enzymatic activity varied significantly during the generations of selection. …”
Enlace del recurso
Tesis -
530
Estimación del contenido de carbono total de especies arbóreas y arbustivas en áreas con diferente uso histórico, en una fracción del matorral espinoso tamaulipeco, Linares, N. L....
Publicado 2008“…By a completely randomized ANOVA there were not any differences found in the average of total carbon content of the species (Pr < 0.0564), this content varied from 44.25 to 47.08% with an general average of 45.52%; Cordia boissieri (44.25 ± 1.52%) and Acacia farnesiana (44.52 ± 1.37%) in the site of Traditional Agriculture those were the species that were with the smallest values, Forestiera angustifolia (47.08 ± 1.27%) with highest in the site of Extensive Foraging. …”
Enlace del recurso
Tesis -
531
Evaluación de la calidad del agua de tres ríos de la subcuenca del “Río Limón” en el estado de Nuevo León
Publicado 2005“…However none chamical constituent exceeded set standards but concentrations of several constituents (pH, CE, Ca2+, Mg2+ Na1 + CO3 - HCO3 Cl- , SO42-) varied according to time, river and location. The time source of variation was explained by increased discharge which appeared to control the concentration of several chemical constituents by dilution. …”
Enlace del recurso
Tesis -
532
Evaluación del contenido de carbono en bosques del sur de Nuevo León
Publicado 2005“…Therefore, the main objective was to evaluate forest capacity for carbon sequestration at the South of Nuevo León, in order to test that this capacity varies among forest types. To do so, from 8 to 12 trees belonging to Pinus teocote, Pinus pseudostrobus and Quercus spp., were felled to obtain total dry weight and to adjust diameter equations for diameters above 1.3 m. …”
Enlace del recurso
Tesis -
533
Evaluación de la calidad del agua de tres ríos de la subcuenca del “Río Limón” en el estado de Nuevo León
Publicado 2005“…However none chamical constituent exceeded set standards but concentrations of several constituents (pH, CE, Ca2+, Mg2+ Na1 + CO3 - HCO3 Cl- , SO42-) varied according to time, river and location. The time source of variation was explained by increased discharge which appeared to control the concentration of several chemical constituents by dilution. …”
Enlace del recurso
Tesis -
534
Evaluación del contenido de carbono en bosques del sur de Nuevo León
Publicado 2005“…Therefore, the main objective was to evaluate forest capacity for carbon sequestration at the South of Nuevo León, in order to test that this capacity varies among forest types. To do so, from 8 to 12 trees belonging to Pinus teocote, Pinus pseudostrobus and Quercus spp., were felled to obtain total dry weight and to adjust diameter equations for diameters above 1.3 m. …”
Enlace del recurso
Tesis -
535
Valor nutricional de forrajes nativos del norte de México
Publicado 2008“…The chemical composition was determined in each plant type; in addition, the extent and degree of ruminal fermentation, using the in vitro gas production technique with or whitout polietilene glycol and the in situ digestibility of dry matter, crude protein and neutral detergent fiber were also determined. Species varied in their contents (%DM) of ash (4.0-32), CP (3.9-18.6), NDF (18.7-65.1), ADF (10.6-42.3), lignin (1.1-14.5) and CT (0.1-9.1). …”
Enlace del recurso
Tesis -
536
Valor nutricional de forrajes nativos del norte de México
Publicado 2008“…The chemical composition was determined in each plant type; in addition, the extent and degree of ruminal fermentation, using the in vitro gas production technique with or whitout polietilene glycol and the in situ digestibility of dry matter, crude protein and neutral detergent fiber were also determined. Species varied in their contents (%DM) of ash (4.0-32), CP (3.9-18.6), NDF (18.7-65.1), ADF (10.6-42.3), lignin (1.1-14.5) and CT (0.1-9.1). …”
Enlace del recurso
Tesis -
537
Ecología y fisiología en las primeras fases de crecimiento de plantas suculentas en el sur del desierto chihuahuense en México y las montañas de Córdoba en Argentina.
Publicado 2018“…The RWC, R/S ratio and RGR and their components varied in response to microenvironments for some species, but not consistently. …”
Enlace del recurso
Tesis -
538
Ecología y fisiología en las primeras fases de crecimiento de plantas suculentas en el sur del desierto chihuahuense en México y las montañas de Córdoba en Argentina.
Publicado 2018“…The RWC, R/S ratio and RGR and their components varied in response to microenvironments for some species, but not consistently. …”
Enlace del recurso
Tesis -
539
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540
Aislamiento y selección de cepas mutantes de Hirsutella citriformis inducidas por el agente químico: metanosulfonato de etilo (EMS).
Publicado 2017“…Techniques such as biphasic culture on different low-cost substrates (sorghum, rice and oats) were evaluated to obtain the highest conidia production that would be used in classical mutagenesis with the chemical agent ethyl methane sulfonate (EMS) which has been successfully used to introduce changes of a single base in the DNA, a mutation protocol was established varying times and concentrations for the obtaining of mutant strains, which were characterized based on radial growth, production of conidia and speed of germination in media as PDA and PDA with yeast extract. …”
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Tesis