Search Results - "time"

Uso de bacteroidales como rastreador de fuente de contaminación fecal en fresa y tomate contaminados artificialmente. by Hernández Rangel, Linda Gracia

“…Current methods used to investigate the possible presence of pathogens, such as Salmonella spp. and E. coli O157:H7 in vegetables, are based in searching fecal indicator organisms; however, these are time-consuming and do not indicate the origin of contamination. …”
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Atrazine and 2, 4-D determination in corn samples using microwave assisted extraction and on-line solid-phase extraction coupled to liquid chromatography. by Santos Hernández, Ana Susana, Hinojosa Reyes, Laura, Sáenz Tavera, Isabel del Carmen, Hernández Ramírez, Aracely, Guzmán Mar, Jorge Luis

“…The proposed method showed good recoveries and reasonable precision for herbicide analysis in corn samples avoiding the time-consuming batch sample pretreatment step, and thus minimizing risks of sample contamination and analyte losses. …”
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Study on the properties of CuSbS₂ and CuSbSeₓS₂₋ₓ thin films for photovoltaic and photodetector applications by Vinayakumar, Vineetha

“…In addition to the PV device application, we also explored the capability of the CuSbS2 in optoelectronic applications where it was tested as a photodetector for a wide range of wavelengths. For the first time ever, we found that CuSbS2 has great potential as a photodetector as well owing to its high sensitivity towards detection of different wavelength light. …”
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Fármacos epigenéticos con efecto en la actividad promotora del gen rb1 en células hepáticas humanas by Vargas Gómez, Jorge Eduardo

“…Once transfected, the cells were exposed to the epigenetic modulating drugs at different time periods and the luciferase activity was messured. …”
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Respuesta morfofisiológica y molecular de Atriplex canescens (Pursh) Nutt. a estrés salino y transferencia de halotolerancia hacia un organismo modelo by Garza Aguirre, Raúl Alejandro

“…One specific A. canescens miRNA (aca-miRn1) suffered a meaningful repression, which for complementarity in the sequence, seems to regulate the transcription factor HIG1/MYB51, which at same time controls the genetic expression of two enzyme isoforms from the PGDH family, enzymes that play a very important role in salt stress metabolites synthesis, such as betaine and glutathione. …”
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Micropropagación de brotes de Agave montium-sancticaroli a partir de yemas apicales by Reyna Morales, Cristian

“…An alternative to counteract this problem is the in vitro propagation of Agave, which offers a greater number of shoots in less time. The objective of this research was to develop a micropropagation protocol for A. montium-sancticaroli that allows massive multiplication in vitro. …”
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Bionomía del mosquito Culex quinquefasciatus (SAY, 1823)) y su relación con el virus del oeste del nilo (VON) en la ciudad de Mérida, Yucatán, México by García Rejón, Julián Everardo

“…In this study was carried out by means of the method of crossed series of time at the beginning and the end of the rainy season the and the length of the gonotrophic cycle. …”
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Sistemática y distribución geográfica de la familia Capitellidae Grube, 1862 (Annelida: Polychaeta) del noroeste de México by García Garza, María Elena

“…Amastigos, Dasybranchethus and Neopseudocapitella were reported for Mexico for the first time. The analyzed species were corroborated with the type material. …”
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Inducción de la expresión de citocinas por Mycobacterium tuberculosis en un modelo de rebanadas de tejido pulmonar by Carranza Torres, Irma Edith

“…Cytokine expression, quantified by Real-Time PCR, showed a peak at 6 h for IL-1β and TNF-α in lung slices infected with M. bovis BCG and M. tuberculosis H37Rv. …”
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Selección de genes especie específicos de Mycobacterium tuberculosis expresados en condiciones de estrés térmico como candidatos para el diagnóstico de la tuberculosis. by Zenteno Chávez, Wendy Lilian

“…Regularly, expression levels of all genes decreased at longer exposure time to heat shock stress and at higher temperatures. …”
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Contenido de macro y micronutrientes en regosoles en áreas bajo manejo del matorral desértico micrófilo y rosetófilo. by Pérez Pérez, José Eduardo

“…According to the results obtained, it was found that the use of the aerating roller had beneficial effects due to the fact that the treatments showed better conditions in the layers from 0 to 15 cm deep, making the nutrients available to the plants, however, a cyclic use is recommended since over time the nutrients show a lower availability, as it was shown by the comparison of means between the control and the other aeration roller treatments, where it was found that the 9 application of this implement had better results in Ra11, which was one of the most recent applications in the study area.…”
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Análisis de factores de virulencia en aislamientos de Clostridium difficile de dos hospitales de tercer nivel de México. by Martínez Meléndez, Julio Adrián

“…Finally, the expression of cwp84 and slpA was evaluated by real-time PCR. One hundred thirty two isolates were recovered from 332 samples (39.8%); all isolates were tcdA+ and tcdB+; in addition, 89 isolates (67.4%) presented the 18 bp deletion in tcdC. …”
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Uso de bacteroidales como rastreador de fuente de contaminación fecal en fresa y tomate contaminados artificialmente. by Hernández Rangel, Linda Gracia

“…Current methods used to investigate the possible presence of pathogens, such as Salmonella spp. and E. coli O157:H7 in vegetables, are based in searching fecal indicator organisms; however, these are time-consuming and do not indicate the origin of contamination. …”
Get full text

Study on the properties of CuSbS₂ and CuSbSeₓS₂₋ₓ thin films for photovoltaic and photodetector applications by Vinayakumar, Vineetha

“…In addition to the PV device application, we also explored the capability of the CuSbS2 in optoelectronic applications where it was tested as a photodetector for a wide range of wavelengths. For the first time ever, we found that CuSbS2 has great potential as a photodetector as well owing to its high sensitivity towards detection of different wavelength light. …”
Get full text

Fármacos epigenéticos con efecto en la actividad promotora del gen rb1 en células hepáticas humanas by Vargas Gómez, Jorge Eduardo

“…Once transfected, the cells were exposed to the epigenetic modulating drugs at different time periods and the luciferase activity was messured. …”
Get full text

Respuesta morfofisiológica y molecular de Atriplex canescens (Pursh) Nutt. a estrés salino y transferencia de halotolerancia hacia un organismo modelo by Garza Aguirre, Raúl Alejandro

“…One specific A. canescens miRNA (aca-miRn1) suffered a meaningful repression, which for complementarity in the sequence, seems to regulate the transcription factor HIG1/MYB51, which at same time controls the genetic expression of two enzyme isoforms from the PGDH family, enzymes that play a very important role in salt stress metabolites synthesis, such as betaine and glutathione. …”
Get full text

Micropropagación de brotes de Agave montium-sancticaroli a partir de yemas apicales by Reyna Morales, Cristian

“…An alternative to counteract this problem is the in vitro propagation of Agave, which offers a greater number of shoots in less time. The objective of this research was to develop a micropropagation protocol for A. montium-sancticaroli that allows massive multiplication in vitro. …”
Get full text

Bionomía del mosquito Culex quinquefasciatus (SAY, 1823)) y su relación con el virus del oeste del nilo (VON) en la ciudad de Mérida, Yucatán, México by García Rejón, Julián Everardo

“…In this study was carried out by means of the method of crossed series of time at the beginning and the end of the rainy season the and the length of the gonotrophic cycle. …”
Get full text

Sistemática y distribución geográfica de la familia Capitellidae Grube, 1862 (Annelida: Polychaeta) del noroeste de México by García Garza, María Elena

“…Amastigos, Dasybranchethus and Neopseudocapitella were reported for Mexico for the first time. The analyzed species were corroborated with the type material. …”
Get full text

Inducción de la expresión de citocinas por Mycobacterium tuberculosis en un modelo de rebanadas de tejido pulmonar by Carranza Torres, Irma Edith

“…Cytokine expression, quantified by Real-Time PCR, showed a peak at 6 h for IL-1β and TNF-α in lung slices infected with M. bovis BCG and M. tuberculosis H37Rv. …”
Get full text