Results 61 to 70 of about 87,928 (172)

Velocidad de lectura e inteligencia en estudiantes de ingeniería

open access: yesRevista de Psicología, 2018
En esta investigación se tuvo por objetivo determinar la relación entre la inteligencia y la velocidad de lectura. Para ello se tomó una muestra de 175 estudiantes universitarios del primer semestre de dos carreras de Ingeniería en una universidad ...
Walter Lizandro Arias Gallegos   +1 more
doaj  

Un método Wavelet-Galerkin para ecuaciones diferenciales parciales parabólicas [PDF]

open access: yes, 2014
In this paper an Adaptive Wavelet-Galerkin method for the solution ofparabolic partial differential equations modeling physical problems withdifferent spatial and temporal scales is developed.
Martín, María Teresa   +1 more
core   +1 more source

Social, Technological, Economic, and Policy Factors in the Circular Economy Transition in Brazil

open access: yesSustainable Development, EarlyView.
ABSTRACT A well‐functioning circular economy (CE) integrates resilience across economic, environmental, and social dimensions. This study identifies key drivers and barriers to Brazil's CE transition through 20 semi‐structured interviews with stakeholders. Major sociocultural barriers include inadequate education and limited CE awareness, while growing
Alejandro Gallego‐Schmid   +9 more
wiley   +1 more source

Empleo del estropajo común (Luffa cylindrica) en la remoción de contaminantes.

open access: yesRevista de Investigación Agraria y Ambiental, 2017
Interesa a la ingeniería, el desarrollo biotecnológico de técnicas de tratamiento de agua para la remoción de contaminantes, aprovechando las propiedades de las fibras de Luffa cylindrica (FLc).
Ricardo Ignacio Pereira-Martínez   +2 more
doaj   +1 more source

A Model for Induction Motors with Non-Uniform Air-Gap [PDF]

open access: yes, 2005
Equations to calculate inductances of induction motors, considering non-uniform air-gap, are proposed. The analyzed air-gap variations are static and dynamic eccentricity and stator slots.
Bossio, Guillermo Rubén   +4 more
core  

Droughts and human impact in the ancient Uaymil region of the Maya lowlands inferred from a 2800‐year sedimentary archive at Lake Kaná, Mexico

open access: yesBoreas, EarlyView.
The relationship between the climate and societal transformation in Maya lowlands has long been debated, particularly the role of drought in shaping the civilization trajectory during the Classic Period. A high‐resolution, multi‐proxy, geochemical record from Lake Kaná, located in the underexplored Uaymil region of the Yucatán Peninsula in Mexico ...
Haydar B. Martinez‐Dyrzo   +5 more
wiley   +1 more source

Implementación de una red neuronal tipo perceptrón en GPU [PDF]

open access: yes, 2015
El objetivo de este trabajo de fin de grado es implementar un perceptrón multicapa en la plataforma de computación en GPU de propósito general CUDA, para poder explotar el paralelismo por el que se caracterizan las tarjetas gráficas.
Torre Arranz, Roberto
core  

Classification of Complex Wishart Matrices with a Diffusion-Reaction System guided by Stochastic Distances

open access: yes, 2015
We propose a new method for PolSAR (Polarimetric Synthetic Aperture Radar) imagery classification based on stochastic distances in the space of random matrices obeying complex Wishart distributions.
Alvarez, Luis   +3 more
core   +1 more source

Mitochondrial Ca2+ overload is a pivotal risk factor for lethal ventricular arrhythmias due to the oxidation of mitochondrial respirasome and energetic failure

open access: yesBritish Journal of Pharmacology, EarlyView.
The data that support the findings of this study are available from the corresponding author upon reasonable request. Some data may not be made available because of privacy or ethical restrictions. Background and Purpose Ventricular arrhythmias are a leading cause of death among patients with cardiovascular diseases and are associated with elevated ...
Felipe de Jesús Salazar‐Ramírez   +13 more
wiley   +1 more source

Vidrios biomédicos y vitrocerámicas como sustitutos de los tejidos óseos

open access: yesRevista CENIC Ciencias Químicas, 2015
Los materiales sustitutivos de los tejidos óseos representan en la actualidad un área de gran interés en la investigación relacionada con productos médicos.
Lizette Morejón-Alonso   +9 more
doaj  

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