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Statistically coherent calibration of X-Ray Fluorescence Spectrometry for major elements in rocks in minerals.
Published 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) and a procedure blank sample. )e mean concentration and uncertainty data for the GRMs used for the calibrations (Supplementary Materials) (available here) filewere achieved from an up-to-date compilation of chemical data and their processing from well-known discordancy and significance tests. )e drift-corrected XRF intensity and its uncertainty were determined from mostly duplicate pressed powder pellets. )e comparison of the OLR (linear correlation coefficient r∼0.9523–0.9964 and 0.9771–0.9999, respectively, for before and after matrix correction) and UWLR models (r∼0.9772–0.9976 and 0.9970–0.9999, respectively) clearly showed that the latter with generally higher values of r is preferable for routine calibrations of analytical procedures. …”
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Viability and reconstitution of delta-endotoxins from Bacillus thuringiensis var. israelensis extracts after forty years of storage against Aedes aegypti (Diptera: Culicidae)
Published 2021“…Its efficiency and specificity make it the most widely used substance as a biopesticide for controlling disease from vector insects, such as mosquitoes, responsible for important human diseases such as malaria, filariasis, dengue, and yellow fevers. To date, it is proven difficult to develop a commercial product that has more than 2 years of shelf life, and there is little information on the viability of these commercial proteins under prolonged storage conditions. …”
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Effectiveness of subcutaneous low-dose alemtuzumab and rituximab combination therapy for steroid-resistant chronic graft-versus-host disease
Published 2012“…Background Chronic graft-versus-host disease is a common late complication of allogeneic hematopoietic stem cell transplantation. …”
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Diversidad y productividad en etapas pioneras y tardías de la sucesión ecológica del matorral espinoso tamaulipeco en el noreste de México
Published 2005“…Indeed the broken stick model of McArthur fitted better the abundance diversity of most plots indicating the late succesional stages of this plant community. …”
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Diversidad y productividad en etapas pioneras y tardías de la sucesión ecológica del matorral espinoso tamaulipeco en el noreste de México
Published 2005“…Indeed the broken stick model of McArthur fitted better the abundance diversity of most plots indicating the late succesional stages of this plant community. …”
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Estimación del carbono almacenado en un bosque de niebla en Tamaulipas, México
Published 2006“…This model had the best adjustment in arboreal species of the cloud forest (R2=0.95). Later, the estimated stored carbon in the aerial part of the trees was 567,116.6 Mg C, found in the cloud forest of the biosphere reserve of El Cielo, Tamaulipas.…”
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Petrology and geochemistry of meta-ultramafic rocks in the Paleozoic Granjeno Schist, northeastern Mexico: Remnants of Pangaea ocean floor
Published 2017“…According to the REE ratios (LaN/YbN = 0.51–20.0 and LaN/SmN = 0.72–9.1) and the enrichment in the highly incompatible elements Cs (0.1 ppm), U (2.8 ppm), and Zr (60 ppm) as well as depletion in Ba (1 – 15 ppm), Sr (1–184ppm),Pb(0.1–14ppm),andCe(0.1–1.9ppm)the rocks have mid-ocean ridge and subduction zones characteristics.TheserpentinitecontainsAl-chromite,ferrian chromiteandmagnetite.TheAl-chromiteischaracterized byCr#of0.48to0.55suggestingaMORBorigin,andCr#of 0.93 to 1.00 for the ferrian chromite indicates a prograde metamorphism.Weproposeatleasttwoserpentinization stagesoflithosphericmantlefortheultramaficrockofthe GranjenoSchist,(1)afirstinanocean-floorenvironment atsub-greenschisttogreenschistfaciesconditionsand(2) later a serpentinization phase related to the progressive replacement of spinel by ferrian chromite and magnetite atgreenschisttolowamphibolitefaciesconditionsduring regional metamorphism. …”
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Effect of different diets on proteolytic enzyme activity, trypsinogen gene expression and dietary carbon assimilation in Senegalese sole (Solea senegalensis) larvae
Published 2011“…Trypsin and chymotrypsin activities increased from 3-4 days after hatching (DAH) in all dietary treatments, while ssetryp1 transcripts increased at 4-5 DAH only in larvae fed live prey. ssetryp1 gene expression was activated later in larvae fed only Artemia and this corresponded with Artemia δ13C values being reflected in larval tissue. …”
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Aproximación al ciberactivismo feminista en Latinoamérica en el siglo XXI
Published 2023“…From this point, the historical connections were located between this digital and network activism and the contemporary feminist movement. Later, the main trends of the feminist cyberactivist agenda of the last decade and its main flags of struggle and political positioning were characterized. …”
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Knowledge of healthcare providers in the management of anaphylaxis
Published 2021“…Conclusions: It is important that healthcare providers know how to recognize, diagnose, and treat anaphylaxis, and later refer them to specialists in Allergy and Clinical Immunology in order to make a personalized diagnosis and treatment.…”
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Adding Multiple Adipokines into the Model do not Improve Weight Gain Prediction by Leptin Levels in Newborns
Published 2016“…Also, the postnatal three months, rather than the later phases of infancy, may be more relevant in the development of an adverse cardiometabolic risk profile. …”
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¿Qué dice la literatura sobre las Revoluciones de Color? Aciertos y Desafíos
Published 2015Get full text
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Proceso de gestión del conocimiento en empresas de Cd. Victoria Tamaulipas
Published 2019Get full text
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