Repositorio IPICyT: Envíos recientes
Mostrando ítems 481-500 de 2345
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Seed traits and germination in the Cactaceae family: A review across Americas
(Sociedad Botánica de México, 2020)"Background: Cactaceae is the fifth taxonomic group with the highest proportion of threatened species and among the angiosperms, the most vulnerable to human disturbance. One way to contribute to the preservation of this ... -
One-Pot Synthesis of Anatase, Rutile-Decorated Hydrogen Titanate Nanorods by Yttrium Doping for Solar H2 Production
(American Chemical Society, 2020)"We have prepared yttrium (Y)-doped hydrogen titanate nanorods (HTN) by a microwave-assisted hydrothermal method. Y-doped HTN showed much improved photocatalytic activities for both H2 evolution and dye decomposition. H2 ... -
Detección de Candidatus Liberibacter solanacearum en San Luis Potosí, causante del permanente del jitomate y clonación de genes relacionados con la resistencia
(2021)"El jitomate es considerado la hortaliza número uno en consumo a nivel mundial registrando una tendencia al alza en las últimas décadas. Existen diferentes factores que afectan su producción, por ejemplo, la enfermedad del ... -
Estudio de la diversidad de organismos fotosintéticos en biocostras de suelos desérticos de San Luis Potosí
(2021-03-03)"Las biocostras son comunidades compuestas por microorganismos como cianobacterias, bacterias heterófofas, clorofitas, hongos y organismos macroscópicos como líquenes, briofitas y microartrópodos. Se distribuyen mayoritariamente ... -
Efecto del calentamiento inducido en la supervivencia y crecimiento de epífitas: Evidencia experimental en Tillandsia recurvata (Bromeliaceae) en el sur del desierto Chihuahuense
(2021-02-16)"Las epífitas son plantas que crecen sobre otras plantas simplemente como soporte físico; estas plantas no se adhieren al suelo u otra fuente obvia de nutrientes y no son parásitas de las plantas hospederas o forofitos. ... -
Caracterización del desarrollo, el estado redox y la respuesta a estrés abiótico y biótico de la línea silenciante-adc de Arabidopsis
(2020-12-03)"Generation of polyamine (PAs) auxotrophic plants has not been achieved since these have been found to be lethal. In our group, an Arabidopsis thaliana line was generated that simultaneously silences the two paralog arginine ... -
Esponjas de Nanotubos de Carbono a partir de Alcoholes
(2020-10)"Las esponjas de carbono están definidas como aquellas estructuras formadas por nanotubos de carbono dispuestos en un arreglo tipo tridimensional y muestran propiedades interesantes tales como: superhidrofobicidad, porosidad, ... -
Síntesis, caracterización y evaluación de oxicloruro de bismuto (BiOCl) en fotocatálisis heterogénea
(2021-02)"El oxicloruro de bismuto (BiOCl) es un semiconductor relativamente nuevo en el ámbito de la fotocatálisis heterogénea, se ha utilizado en el tratamiento de aguas para la remoción de colorantes y algunos compuestos más ... -
Distributed integral control of multiple UAVs: precise flocking and navigation
(The Institution of Engineering and Technology, 2019)"The authors interest in this work is to perform a precise real-time flocking of multiple unmanned aerial vehicles (UAVs). A consensus-based flocking algorithm that ensures a precise security distance between UAVs is ... -
Magnetic fields produced by non-concentric and non-coplanar currents in circular loops
(IOP Publishing, 2019)"A numerical calculation for the stationary magnetic field produced by arrangements of non-concentric and non-coplanar loop current circuits is presented. The calculation is done by superposing the solution of the magnetic ... -
Itinerary synchronization between PWL systems coupled with unidirectional links
(Elsevier, 2019)"In this paper the collective dynamics of N-coupled piecewise linear (PWL) systems with different number of scrolls is studied. The coupling is in a master-slave sequence configuration, with this type of coupling we ... -
Stability analysis of orbital modes for a generalized Lane-Emden equation
(Elsevier, 2019)"We present a stability analysis of the standard nonautonomous systems type for a recently introduced generalized Lane-Emden equation which is shown to explain the presence of some of the structures observed in the atomic ... -
Improved reductive transformation of iopromide by magnetite containing reduced graphene oxide nanosacks as electron shuttles
(Elsevier, 2019)"The novel application of magnetite containing reduced graphene oxide nanosacks (MrGO-N) as electron shuttles to improve the reductive degradation of the pharmaceutical pollutant, iopromide (IOP), was evaluated. MrGO-N ... -
Electronic implementation of a dynamical network with nearly identical hybrid nodes via unstable dissipative systems
(Elsevier, 2019)"This work addresses a circuit architecture for a dynamical network composed of a type of chaotic hybrid oscillator based on Unstable Dissipative Systems (UDS). Implementing that system reveals the possibility of selecting ... -
Generalized Cornu-type spirals and their Darboux parametric deformations
(Elsevier, 2019)"We generalize the Fresnel integrals and introduce a class of spirals F-n, which contains the Cornu spiral as the case F-2. Their Darboux parametric deformations are also investigated. The F-3 spiral and some of its Darboux ... -
A first principles systematic study of the structural, electronic, and magnetic properties of Heusler X2MnZ with X = Fe, Co, Ni, Cu, Ru, Rh, Pd, Ag, Pt, Au and Z = Al, Si, Ga, Ge, In and Sn
(IOP Publishing, 2019)"An exhaustive study of the structural stability, electronic, and magnetic properties of the ternary X2MnZ Heusler alloys, in cubic and tetragonal lattice cells, is presented. We performed density-functional-theory (DFT) ... -
Giant and Reversible Inverse Barocaloric Effects near Room Temperature in Ferromagnetic MnCoGeB0.03
(Wiley, 2019)"Hydrostatic pressure represents an inexpensive and practical method of driving caloric effects in brittle magnetocaloric materials, which display first?order magnetostructural phase transitions whose large latent heats ... -
The Ilopango Tierra Blanca Joven (TBJ) eruption, El Salvador: Volcano-stratigraphy and physical characterization of the major Holocene event of Central America
(Elsevier, 2019)"The Ilopango caldera is the source of the large Tierra Blanca Joven (TBJ) eruption that occurred about 1.5 ka years ago, between ca. AD270 and AD535. The eruption dispersed volcanic ash over much of the present territory ... -
Freezing phase transition in a fractal potential
(IOP Publishing, 2019)"In this work we propose a simple example of a one-dimensional thermodynamic system where non-interacting particles are allowed to move over the [0, 1] interval, which are influenced by a potential with a fractal structure. ... -
Effect of the anchoring strength on the phase behaviour of discotic liquid crystals under face-on confinement
(IOP Publishing, 2019)"In this study we have performed molecular dynamics simulations to study a Gay-Berne discotic fluid confined in a slab geometry for a fixed confinement length. Four different anchoring strengths with a homeotropic (face-on) ...