Buscar recursos académicos

Es importante procurar la conservación de los recursos naturales, para lo cual es necesario identificar su ubicación y distribución. A fin de preservar los recursos naturales, se estableció en México el Programa de ...

To elucidate the influence of bi-substitution on the structural and hyperfine properties of goetites, two series of (Al,Co)- and (Mn,Co)-substituted goethites were synthesized in alkaline media by aging several ferrihydr...

Objectives: Isolation of colistin- and carbapenem-resistant Klebsiella pneumoniae (CCR-Kp) is increasing in hospital settings worldwide, which is related to increased morbidity, mortality and healthcare costs. The aim of...

This study investigates the impact of different processing steps on the crystallographic textureevolution of αZr and minority phases βZr and ωZr, and intergranular stresses as a function ofgrain orientation in a Zr2.5...

The characteristics and duration of the processes occurring from the design and designation of a Marine Protected Area (MPA) to the effective implementation and renewal of its management plan were analysed in 234 MPAs fr...

Our aim was to investigate lineages and resistome of carbapenemase-producing Klebsiella oxytoca Complex (KoC) strains isolated from 2019 to 2022 from colonization and infection samples to evaluate their potential dissemi...

The hydatid disease parasite Echinococcus granulosus has a restricted lipid metabolism, and needs to harvest essential lipids from the host. Antigen B (EgAgB), an abundant lipoprotein of the larval stage (hydatid cyst), ...

The Bonarda variety has been used as a base for common red wines due to its contribution to color and low level of astringency as a consequence of its relative low tannin concentration. The use of Microwave- Assisted Ext...

Non-Saccharomyces yeasts are unicellular eukaryotes that play important roles in diverse ecological niches. In recent decades, their physiological and morphological properties have been reevaluated and reassessed, demons...

In Survival Analysis, the focus of interest is a time $T^*$ until the occurrence of some event. A set of explanatory variables (denoted by a vector $Z$) is considered to analyze if there is a relationship between any of ...

El bicarbonato (HCO3-) es el producto de desecho de la respiración mitocondrial. Las proteínas transportadoras de HCO3- (TB) facilitan el movimiento del HCO3- para acelerar el descarte de CO2, controlar el pH celular y...

Sterol regulatory element binding proteins (SREBP), encoded by the Srebf1 and Srebf2 genes, are important regulators of genes involved in cholesterol and fatty acid metabolism. Whereas SREBP-2 controls the cholesterol sy...

Aims. Bars are considered an efficient mechanism for transporting gas toward the central regions of galaxies and potentially enhance nuclear activity. However, the extent to which bars influence active galactic nuclei (A...

Este trabajo analiza el tratamiento de la emergencia en el sistema jurídico desde la perspectiva de la conjetura planteada por Henri Poincaré en el ámbito de la topología en 1904. Una conjetura que fue resuelta final...

La convivencia escolar constituye hoy en día un eje fundamental de reflexión en el ámbito de las Ciencias de la Educación, al tiempo que representa una preocupación prioritaria para los centros escolares y un criter...

Se presentan los resultados del trabajo realizado en la Estación Meteorológica de CARSUCRE, en bosque seco tropical del municipio de Colosó, departamento de Sucre (Colombia), donde se efectuaron transectos lineales de...

Coral reef systems on the southeastern Cuban shelf are exposed to rapid warming and increasingly frequent marine heatwaves (MHWs). However, the physical drivers of local sea-surface temperature (SST) variability remain...

Fe–Mn based alloys with more 12% at. of Mn are usually called High-Mn steels. Several technological properties of High-Mn steels are explained by the presence of the fcc-hcp martensitic transformation. This transition ...

We present data about the synthesis of urea from different substrates, i.e., free ammonia, glutamine and alanine in primary cultured rat hepatocytes treated or untreated with the model hepatotoxic agent thioacetamide (TA...

Extracellular nucleotides and nucleosides activate signaling pathways that play major roles in the physiology and pathophysiology of the gastrointestinal tract. Ectonucleotidases hydrolyze extracellular nucleotides and t...

Commerson’s dolphins (Cephalorhynchus commersonii) are separated into the subspecies C. c. commersonii, found along southern South America (SA) and the Falkland Islands/Islas Malvinas (FI/IM), and C. c. kerguelenensis,...

Most alpine ecosystems are subject to non-native species invasion as climate warms and human disturbance increases. Therefore, it is important to identify the main barriers and facilitators of alpine plant invasions. Whi...

A green and sustainable approach to the direct synthesis ofthioesters has been developed using Fe3O4 as a low-cost, easilyprepared, reusable and environmentally safe catalyst. The crossdehydrogenative coupling (CDC) of v...

Trade-offs between yield and grain quality for dry milling are common in maize (Zea mays L.), but the magnitude of these correlations can differ depending on the specific quality trait. We aimed to quantify the relations...