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3301
Regulación de la expresión de genes involucrados en la producción de compuestos de azufre en Saccharomyces cerevisiae
Publicado 2011“…In the presence of worts with low level of nutrients nitrogen, strain 820 downregulated genes that favor the incorporation of sulfur to carbon skeletons (MET6, MET13, MHT1) and at the same time over expressed genes related to the input of sulfate into the cell generating sulfur (MET3, MET2) in the other hand, strain 790 upregulated the way of balance in the production of AdoMet / methionine (MHT1 gene), without having an effect in any other gene involved. These results were confirmed by using qPCR, analyzing 18 genes total. 820 under the presence of low nitrogen compounds (wort1) was not able to adjust their genetic machinery for the incorporation of sulfur to carbon skeletons, in the other hand under the presence of wort rich in nitrogen compounds (wort 2) regulated its genetic machinery, expressing more genes involved in the transsulfuration pathway (CYS4) favored by the incorporation of serine in the way. 790 behaved differently, was able to adjust their genetic machinery in the presence of low content of nitrogen compounds by activating genes via transsulfuration (CYS4, SER2) as well genes by the incorporation of sulfur for methionine production and S-adenosylmethionine remethylation (MET6, MET13, MHT1). …”
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Tesis -
3302
Evaluación del contenido de carbono en bosques del sur de Nuevo León
Publicado 2005“…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. …”
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Tesis -
3303
Estrés-recuperación psicofisiológica y su relación con las cargas internas del entrenamiento y el rendimiento deportivo.
Publicado 2018“…For its explanation, a discussion section was carried out, in which our results were analyzed in comparison with what was reported by previous research in the field related to high-performance sports practice under the same or in similarity with the variables used in our study. …”
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3304
Caracterización geológica y geoquímica de fluidos en el sistema geotérmico Araró, Michoacán, México
Publicado 2017“…The identification and characterization of the minerals are made by light microscopy of the reflected light and the transmission, also to complement the mineralogical studies were used mineralogical determinants and qualitative techniques: X-ray diffraction, short-wave infrared spectroscopy and electron microscopy. …”
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Tesis -
3305
Aspectos biológicos de la lobina negra (Micropterus salmoides) en la presa El Cuchillo Solidaridad, China, N.L.
Publicado 2005“…For the physical-chemical analysis of the water, ten places of collected settled down in saying reservoir, measuring the pH, conductivity, color, turbity, total solids, disolved solids, suspended solids, total alkalinity, total hardness, hardness of calcium, hardness of magnesium, magnesium, calcium. chlorides and sulfates. The fish were collected at random in the whole prey, in tournaments of ecological freckle, determining the factor of K condition, takes them sample of blood in order to evaluate the microhematocrit, hemoglobin and total protein of the plasm. …”
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Tesis -
3306
Inhibición de la replicación y expresión de un replicón subgenómico del virus de la hepatitis c, con RNA’S de interferencia
Publicado 2008“…A Huh-7-VHC replicon cell (cellular line that expresses a stable subgenomic replicon of HCV) was used; it was transfected, individually and combined with 3 selected siRNAs against diverse regions of the viral gene NS5b; then inhibition of the polymerase viral expression and the replication of the HCV genome was analyzed. The cells that were treated with the siRNA “A” presented a higher inhibition of the viral RNA levels during the 6 days post-transfection with inhibitions of 86% and 88% with 100 and 200 nM. …”
Enlace del recurso
Tesis -
3307
Regulación de la expresión de genes involucrados en la producción de compuestos de azufre en Saccharomyces cerevisiae
Publicado 2011“…In the presence of worts with low level of nutrients nitrogen, strain 820 downregulated genes that favor the incorporation of sulfur to carbon skeletons (MET6, MET13, MHT1) and at the same time over expressed genes related to the input of sulfate into the cell generating sulfur (MET3, MET2) in the other hand, strain 790 upregulated the way of balance in the production of AdoMet / methionine (MHT1 gene), without having an effect in any other gene involved. These results were confirmed by using qPCR, analyzing 18 genes total. 820 under the presence of low nitrogen compounds (wort1) was not able to adjust their genetic machinery for the incorporation of sulfur to carbon skeletons, in the other hand under the presence of wort rich in nitrogen compounds (wort 2) regulated its genetic machinery, expressing more genes involved in the transsulfuration pathway (CYS4) favored by the incorporation of serine in the way. 790 behaved differently, was able to adjust their genetic machinery in the presence of low content of nitrogen compounds by activating genes via transsulfuration (CYS4, SER2) as well genes by the incorporation of sulfur for methionine production and S-adenosylmethionine remethylation (MET6, MET13, MHT1). …”
Enlace del recurso
Tesis -
3308
Evaluación del contenido de carbono en bosques del sur de Nuevo León
Publicado 2005“…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 -
3309
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3310
Estudio geobiológico de la formación La Virgen y sus facies transicionales en los Potreros de Menchaca y La Virgen, Coahuila.
Publicado 2018“…Two well-exposed localities that outcrop in central Coahuila were chosen: (1) Potrero de Menchaca records the silicilastic-carbonate La Mula- La Virgen transition, and (2) Potrero La Virgen, a locality that exposes the concordant upper contact between La Virgen and Cupido. …”
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Tesis -
3311
Hongos ectomicorrícicos asociados a los bosques mixtos de pino-encino, encino y coníferas en el ejido Pueblo Nuevo en el estado de Durango.
Publicado 2017“…The fresh and dry weight of the species found in the sampling sites of the two seasons of 2016 and 2017 was measured. finding The fresh weight and dry weight of season 2016 the data were forest, pine-oak with data of fresh weight of 1508 g and dry weight of 166.51 g, oak with fresh weight of 2441.45 g and dry weight of 222.36 g and finally the coniferous forest with fresh weight of 611.52 gr and dry weight of 64.93 gr. …”
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Tesis -
3312
Estudio geobiológico de la formación La Virgen y sus facies transicionales en los Potreros de Menchaca y La Virgen, Coahuila.
Publicado 2018“…Two well-exposed localities that outcrop in central Coahuila were chosen: (1) Potrero de Menchaca records the silicilastic-carbonate La Mula- La Virgen transition, and (2) Potrero La Virgen, a locality that exposes the concordant upper contact between La Virgen and Cupido. …”
Enlace del recurso
Tesis -
3313
Hongos ectomicorrícicos asociados a los bosques mixtos de pino-encino, encino y coníferas en el ejido Pueblo Nuevo en el estado de Durango.
Publicado 2017“…The fresh and dry weight of the species found in the sampling sites of the two seasons of 2016 and 2017 was measured. finding The fresh weight and dry weight of season 2016 the data were forest, pine-oak with data of fresh weight of 1508 g and dry weight of 166.51 g, oak with fresh weight of 2441.45 g and dry weight of 222.36 g and finally the coniferous forest with fresh weight of 611.52 gr and dry weight of 64.93 gr. …”
Enlace del recurso
Tesis -
3314
Distribución ecológica de la herpetofauna de la Sierra de Gomas, en el estado de Nuevo León.
Publicado 2018“…The objectives of the work were to determine the species and subspecies found in this mountain range, as well as to determine their substrate preferences, seasonality, distribution in the different altitudinal ranges, vegetation types, and exposures. …”
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Tesis -
3315
Análisis de la expresión genética en la síntesis de acetato de etilo y acetato de isoamilo en Saccharomyces cerevisiae, en distintas condiciones de fermentación en el proceso cerve...
Publicado 2011“…These compounds are generated by the activity of certain genes, and although progress has been made in the investigation and it is known that the production of esters is influenced by factors such as strain, wort composition, temperature, pressure, amount of inoculum and dissolved oxygen ; still unknown levels of expression and interaction of these genes in different industrial fermentation conditions.In this paper we determine the level of expression of genes related to the biosynthesis of ethyl acetate and isoamyl acetate in the strains type lager 790 and 820. The yeasts were submitted to the following experimental conditions: a) composition of wort (35% - 50% malt), b) fermentation temperature (12.5 ° C - 17.5 ° C), c) starting temperature (8.5 ° C - 12.5 ° C) and d) oxygen (25 ppm - 35 ppm) The global analysis of the transcriptome was obtained by DNA microarray and verified for qPCR. …”
Enlace del recurso
Tesis -
3316
Distribución ecológica de la herpetofauna de la Sierra de Gomas, en el estado de Nuevo León.
Publicado 2018“…The objectives of the work were to determine the species and subspecies found in this mountain range, as well as to determine their substrate preferences, seasonality, distribution in the different altitudinal ranges, vegetation types, and exposures. …”
Enlace del recurso
Tesis -
3317
Análisis de la expresión genética en la síntesis de acetato de etilo y acetato de isoamilo en Saccharomyces cerevisiae, en distintas condiciones de fermentación en el proceso cerve...
Publicado 2011“…These compounds are generated by the activity of certain genes, and although progress has been made in the investigation and it is known that the production of esters is influenced by factors such as strain, wort composition, temperature, pressure, amount of inoculum and dissolved oxygen ; still unknown levels of expression and interaction of these genes in different industrial fermentation conditions.In this paper we determine the level of expression of genes related to the biosynthesis of ethyl acetate and isoamyl acetate in the strains type lager 790 and 820. The yeasts were submitted to the following experimental conditions: a) composition of wort (35% - 50% malt), b) fermentation temperature (12.5 ° C - 17.5 ° C), c) starting temperature (8.5 ° C - 12.5 ° C) and d) oxygen (25 ppm - 35 ppm) The global analysis of the transcriptome was obtained by DNA microarray and verified for qPCR. …”
Enlace del recurso
Tesis -
3318
Climas empowering y disempowering, necesidades psicológicas, motivación, e intenciones futuras de participar en el fútbol.
Publicado 2018“…To achieve the general objective, the development of the following specific objectives were proposed: OE1. Analyze the psychometric properties of the instruments used in this research. …”
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Tesis -
3319
Climas empowering y disempowering, necesidades psicológicas, motivación, e intenciones futuras de participar en el fútbol.
Publicado 2018“…To achieve the general objective, the development of the following specific objectives were proposed: OE1. Analyze the psychometric properties of the instruments used in this research. …”
Enlace del recurso
Tesis -
3320
A global-scale screening of non-native aquatic organisms to identify potentially invasive species under current and future climate conditions
Publicado 2021“…The 1730 screenings undertaken encompassed wide geographical areas (regions, political entities, parts thereof, water bodies, river basins, lake drainage basins, and marine regions), which permitted thresholds to be identified for almost all aquatic organismal groups screened as well as for tropical, temperate and continental climate classes, and for tropical and temperate marine ecoregions. In total, 33 species were identified as posing a ‘very high risk’ of being or becoming invasive, and the scores of several of these species under current climate increased under future climate conditions, primarily due to their wide thermal tolerances. …”
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