Repositorio IPICyT: Envíos recientes
Mostrando ítems 761-780 de 2345
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Absence of evidence is not evidence of absence: Multiple steady states in ammonia synthesis
(Elsevier, 2016)"Using a chemical reaction network (CRN) Theory approach, three well-accepted mechanisms of ammonia synthesis over iron catalyst taking place within an isothermal Continuous Flow Stirred Tank Reactor (CFSTR) are analyzed. ... -
Geochronological and geochemical evidences for extension-related Neoarchean granitoids in the southern São Francisco Craton, Brazil
(Elsevier, 2017)"New LA-SF-ICP-MS U-Pb zircon dating of high-K granitoids from the Campo Belo metamorphic complex, southern Sao Francisco Craton (Brazil), reveals a long period (ca. 100 My) of Neoarchean granitic magmatism that post-date ... -
Geochemistry of komatiites and basalts from the Rio das Velhas and Pitangui greenstone belts, São Francisco Craton, Brazil: Implications for the origin, evolution, and tectonic setting
(Elsevier, 2017)"The Neoarchean Rio das Velhas and Pitangui greenstone belts are situated in the southern São Francisco Craton, Minas Gerais, Brazil. These greenstone belts were formed between ca. 2.79–2.73 Ga, and consist mostly of mafic ... -
Deep-seated gravitational slope deformations triggered by extreme rainfall and agricultural practices (eastern Michoacan, Mexico)
(Springer, 2018)"The study of deep-seated gravitational slope deformations (DSGSD) in Mexico is scarce; therefore, their localization and causes are highly overlooked. The present paper examines the characterization of the DSGSD of Jungapeo ... -
Statistically coherent calibration of X-ray fluorescence spectrometry for major elements in rocks and minerals
(Hindawi Publishing Corporation, 2018)"We applied both the ordinary linear regression (OLR) and the new uncertainty weighted linear regression (UWLR) models for the calibration and comparison of a XRF machine through 59 geochemical reference materials (GRMs) ... -
Potential fields modeling of the Serdan Oriental basin, Eastern Mexico
(Elsevier, 2017)"In the eastern portion of the Trans-Mexican Neovolcanic Belt a group maars, rhyolitic domes, and cinder cones are scattered within the Oriental-Serdán basin. They are flanked by large polygenetic volcanoes. We use ... -
Precambrian plate tectonic setting of Africa from multidimensional discrimination diagrams
(Elsevier, 2017)"New multi-dimensional discrimination diagrams have been used to identify plate tectonic setting of Precambrian terrains. For this work, nine sets of new discriminant-function based multi-dimensional discrimination diagrams ... -
Reappraisal of Los Humeros Volcanic Complex by New U/Th Zircon and 40Ar/39Ar Dating: Implications for Greater Geothermal Potential
(American Geophysical Union, 2018)"Longevity and size of magmatic systems are fundamental factors for assessing the potential of a geothermal field. At Los Humeros volcanic complex (LHVC), the first caldera-forming event was reported at 46040 ka. New zircon ... -
Lagrangian trajectories, residual currents and rectification process in the Northern Gulf of California
(Elsevier, 2017)"Considering a semi-implicit approximation of the Coriolis terms, a numerical solution of the vertically integrated equations of motion is proposed. To test the two-dimensional numerical model, several experiments for the ... -
Geoquímica y petrogénesis del componente volcánico de la Formación Chilitos: Fresnillo, Zacatecas; implicación del origen y ambiente tectónico
(2019-08-29)"El área de estudio está ubicada al sur de la ciudad de Fresnillo, Zacatecas, y está limitada por las provincias fisiográficas de la Mesa Central y la Sierra Madre Occidental. Simultáneamente, el área está geológicamente ... -
Anthelmintic effect of Psidium guajava and Tagetes erecta on wild-type and Levamisole-resistant Caenorhabditis elegans strains
(Elsevier, 2017)"Ethnopharmacological relevance Psidium guajava and Tagetes erecta have been used traditionally to treat gastrointestinal parasites, but their active metabolites and mechanisms of action remain largely unknown. Aim of ... -
Optimization of biohydrogen production by the novel psychrophilic strain N92 collected from the Antarctica
(Elsevier, 2018)"In this study, the response surface methodology (RSM) with central composite design (CCD) was employed to improve the hydrogen production by the psychrophilic N92 strain (EU636058) isolated from Antarctica, which is closely ... -
Chromatin loop formation induced by a subtelomeric protosilencer represses EPA genes in Candida glabrata
(Genetics Society of America, 2018)"Adherence, an important virulence factor, is mediated by the EPA (Epithelial Adhesin) genes in the opportunistic pathogen Candida glabrata. Expression of adhesin-encoding genes requires tight regulation to respond to harsh ... -
Diversification of transcriptional regulation determines subfunctionalization of paralogous branched chain aminotransferases in the yeast Saccharomyces cerevisiae
(Genetics Society of America, 2017)"Saccharomyces cerevisiae harbors BAT1 and BAT2 paralogous genes that encode branched chain aminotransferases and have opposed expression profiles and physiological roles . Accordingly, in primary nitrogen sources such as ... -
Candida glabrata encodes a longer variant of the mating type (MAT) alpha2 gene in the mating type-like MTL3 locus, which can form homodimers
(Oxford University Press, 2016)"The fungal pathogen Candida glabrata is a haploid asexual yeast. Candida glabrata contains orthologs of the genes that control mating and cell-type identity in other fungi, which encode putative transcription factors ... -
Bacterial wilt and canker of tomato: fundamentals of a complex biological system
(Springer, 2018)"Tomato (Solanum lycopersicum) is well-known as a model for study of plant–pathogen interactions, since it is a crop of global relevance and susceptible to multiple bacterial, fungal, viral and nematode pathogens. Among ... -
Biohydrogen production from mixtures of agro-industrial wastes: Chemometric analysis, optimization and scaling up
(Elsevier, 2018)"Cheese whey (CW) and wheat straw hydrolysate (WSH) were used to produce biohydrogen by anaerobic co-digestion of multiple substrates. In this work, the influence of pH, temperature, substrates concentrations on the ... -
Physiological concentrations of zinc have dual effects on P2X myenteric receptors of guinea pig
(Springer, 2018)"We, hereby, characterize the pharmacological effects of physiological concentrations of Zinc on native myenteric P2X receptors from guinea-pig small intestine and on P2X2 isoforms present in most myenteric neurons. This ... -
Constitutive expression of the active fragment of human vasostatin Vs30 in Pichia pastoris SMD1168H
(Elsevier, 2018)"Vasostatin 30 (Vs30) is an active fragment derived from the N-terminal region (135–164 aa) of human calreticulin and has the ability to inhibit angiogenesis. In this work, the expression of Vs30 was performed using a ... -
Recreating intestinal peristalsis in the petri dish
(Humana Press Inc, 2017)"Here we describe a culture technique of cells dissociated from the external muscularis of the guinea pig small intestine, which allows us to maintain all the elements involved in the intestinal peristaltic reflex. After ...