Browsing Artículos by Title
Now showing items 45-64 of 200
-
Educación matemática de jóvenes y adultos : la complejidad de la enseñanza en una oferta semipresencial
(2014)Este artículo tiene como objetivo presentar hallazgos de una investigación referida a la enseñanza de saberes matemáticos en la modalidad de Educación Permanente de Jóvenes y Adultos. Este estudio tuvo como objeto analizar ... -
Effect of the microtubule-associated protein tau on dynamics of single-headed motor proteins KIF1A
(2014-02)Intracellular transport based on molecular motors and its regulation are crucial to the functioning of cells. Filamentary tracks of the cells are abundantly decorated with nonmotile microtubule-associated proteins, such ... -
Effects of magnetic field gradients on the aggregation dynamics of colloidal magnetic nanoparticles
(2015)We have used low-field 1H nuclear-magnetic resonance (NMR) spectroscopy and molecular dynamics (MD) to investigate the aggregation dynamics of magnetic particles in ionic ferrofluids (IFFs) in the presence of magnetic field ... -
Effects of rainfall on Culex mosquito population dynamics
(2017)The dynamics of a mosquito population depends heavily on climatic variables such as temperature and precipitation. Since climate change models predict that global warming will impact on the frequency and intensity of ... -
Empoderamiento : una caracterización al interior de la educación matemática
(2016)El presente trabajo pone en juego un proceso analítico-constructivo con el fin de realizar una caracterización del empoderamiento para el ámbito de la educación matemática. Para llegar a tal caracterización se delimitan ... -
Enhancement of dissolution rate of furosemide using a solid dispersion with D-glucosamine HCl
(2016)Furosemide is a potent high ceiling (loop) diuretic mainly used in the treatment of edematous states associated with cardiac, renal, and hepatic failure, and the treatment of hypertension. Furosemide has been classified ... -
Estudio del espectro fluorescente Ka 1,2 en Mn
(2014)Se presenta un estudio de alta resolución del espectro de emisión fluorescente Kα1,2deMn.El espectromedidopresenta asimetrías hacia el lado de bajas energías de los picosKα1y Kα2.Lainterpretación del ... -
Estudio experimental del efecto de la turbulencia sobre el espectro de tamaño de gotas de nube
(2017)El propósito de este trabajo es estudiar empíricamente el efecto sobre el espectro de tamaños de gotas en una nube cálida, sometida a perturbaciones que afectan el movimiento de la parcela de aire en donde se encuentra. ... -
Examples of extensions of hopf algebras
(2015)We give some examples of, and raise some questions on, extensions of semisimple Hopf algebras. -
Examples of pointed color Hopf algebras
(2014)We present examples of color Hopf algebras, i.e. Hopf algebras in color categories (braided tensor categories with braiding induced by a bicharacter on an abelian group), related with quantum doubles of pointed Hopf algebras. ... -
Existence of nonnegative solutions for singular elliptic problems
(2016)We prove the existence of nonnegative nontrivial weak solutions to the problem −∆u = au−αχ{u>0} − bup in Ω, u = 0 on ∂Ω, where Ω is a bounded domain in Rn. A sufficient condition for the existence of a continuous and ... -
Existence of strictly positive solutions for sublinear elliptic problems in bounded domains
(2014)Let Ω be a smooth bounded domain in RN and let m be a possibly discontinuous and unbounded function that changes sign in Ω. Let f : [0,∞) → [0,∞) be a nondecreasing continuous function such that k1 ξp ≤ f (ξ) ≤ k2 ξp for ... -
Una experiencia vivida en aula : enseñar y aprender a trabajar con estadística desde una perspectiva crítica
(2015)En este artículo se presenta una descripción de una experiencia escolar realizada en una escuela secundaria de una localidad de la provincia de Córdoba donde la segunda autora se desempeña como profesora de matemática. La ... -
Experimental determination of <10 10>/ Ψ tilt grain boundary energies in ice
(2014)Ice grain boundary energies γgb relative to the free surface energy γs were determined by studying the topographic details revealed by plastic replicas of the ice grain boundary groove-free surface with a Laser Confocal ... -
Experimental determination of L X-ray fluorescence cross sections for elements with 45 < Z < 50 at 10 keV
(2014)Synchrotron radiation at 10 keV was used to experimentally determine the Ll, La, LbI ,LbII , LgI and LgII fluorescence cross sections for elements with 45 < Z < 50, as part of an ongoing investigation at low energies. The ... -
Experimental determination of multiple ionization cross sections in Si by electron impact
(2015)The thin sample method is often used to experimentally determine ionization cross sections, specially when focusing on the low overvoltage region. The simplicity of the formalism involved in this method is very appealing, ... -
Experimental quantification of decoherence via the Loschmidt echo in a many spin system with scaled dipolar Hamiltonians
(2015)We performed Loschmidt echo nuclear magnetic resonance experiments to study decoherence under a scaled dipolar Hamiltonian by means of a symmetrical time-reversal pulse sequence denominated Proportionally Refocused Loschmidt ... -
Explicit matrix inverses for lower triangular matrices with entries involving Jacobi polynomials
(2015)For a two-parameter family of lower triangular matrices with entries involving Jacobi polynomials an explicit inverse is given, with entries involving a sum of two Jacobi polynomials. The formula simplifies in the Gegenbauer ... -
Expression of VEGF-A, HIF-1 A, CD34 and Ki67 in clear cell renal cell carcinomas and their relationship with conventional prognostic markers
(2014)El carcinoma renal de células claras es la variante más frecuente de carcinoma renal. En los últimos años, la atención se ha enfocado en la expresión de factores angiogénicos por estos tumores, lo que justificaría en ... -
First all-sky search for continuous gravitational waves from unknown sources in binary systems
(2014)We present the first results of an all-sky search for continuous gravitational waves from unknown spinning neutron stars in binary systems using LIGO and Virgo data. Using a specially developed analysis program, the ...