Results 51 to 60 of about 429,869 (239)

A note on the application of wazewski’s topological method to an integro: differential equation of volterra type [PDF]

open access: yes, 2015
The purpose of this note is to generalize the Wazewski’s Topological Method 11, originally stated for ordinary differential equations, to the integro – differential equation of Volterra type (1), under suitable conditions on the functions involved.Fil ...
Guzmán, Paulo Matias   +3 more
core  

Genetic Risk and High Burden of Depression and Suicide in the Maya‐Mestizo Population of Yucatán, México

open access: yesAmerican Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT Major depression and suicide are critical public health concerns, particularly in underrepresented populations with unique genetic and sociocultural contexts. The Maya‐mestizo population presents the highest suicide rates in the country but remains understudied in psychiatric genetics. This study evaluated the association between three genetic
Marta Menjivar   +3 more
wiley   +1 more source

Plataforma Canvas y aprendizaje significativo en estudiantes de educación básica regular.

open access: yesEncuentros, 2023
La introducción de las plataformas virtuales en la educación, han generado grandes impactos en la práctica docente, desde la modificación de los recursos educativos tradicionales hasta la generación de nuevas metodologías y estrategias de enseñanza ...
Rafaela Teodosia Huerta Camones   +3 more
doaj   +1 more source

Effects of intermittent exposure to hypobaria and cold on the microarchitecture and morphofunctional profile of rat gastrocnemius muscle

open access: yesThe Anatomical Record, EarlyView.
Abstract Intermittent hypobaric hypoxia (IHH) enhances oxygen transport, muscle metabolism, and cardiovascular health; however, the combined effects of hypobaria and cold are less well understood. Exposure to these stressful environmental factors, even intermittently, can affect skeletal muscle due to its plasticity, thereby altering its metabolic and ...
Garoa Santocildes   +3 more
wiley   +1 more source

Covid-19 y precariedad de competencias transversales en estudiantes universitarios. Una hipótesis a partir de la prueba estadística en Perú.

open access: yesEncuentros
A partir de la hipótesis por la cual la educación virtual condicionaría negativamente el desarrollo de competencias transversales, se lleva a lugar una investigación estadística entre estudiantes universitarios de Lurigancho-Chosica, Perú.
Rafaela Teodosia Huerta Camones   +4 more
doaj   +1 more source

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

open access: yesThe Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro   +1 more
wiley   +1 more source

Automatización, personalización e innovación: oportunidades y desafíos de la Inteligencia Artificial en la Educación

open access: yesClío
Debido a su desarrollo exponencial, la Inteligencia Artificial tiene el potencial de mejorar los aprendizajes, conduciendo a educadores y educandos a superar las limitaciones tradicionales presentes en la educación.
Carlos Percy Cisneros Valentín   +3 more
doaj   +1 more source

Ultra-relativistic spinning particle and a rotating body in external fields [PDF]

open access: yes, 2016
We use the vector model of spinning particle to analyze the influence of spin-field coupling on the particle's trajectory in ultra-relativistic regime. The Lagrangian with minimal spin-gravity interaction yields the equations equivalent to the Mathisson ...
Deriglazov, Alexei A.   +1 more
core   +3 more sources

The musculature and skeleton of the pelvic fin of the crocodile shark, Pseudocarcharias kamoharai (Matsubara, 1936) (Elasmobranchii: Lamniformes): Morphology and sexual dimorphism

open access: yesThe Anatomical Record, EarlyView.
This work brings new information on the sexual characteristics of the crocodile shark (Pseudocarcharias kamoharai) exploring the pelvic fin musculature, as well as the siphon sac and the musculature and skeleton of the clasper. Our paper is the first to point out clearly the sexual dimorphism related exclusively to the pelvic fin musculature in males ...
Laura F. Mianutti   +2 more
wiley   +1 more source

Identification and susceptibility profile of microorganisms isolated directly from urine in a cross-sectional study using matrix-assisted laser desorption/ionization time-of-flight and Phoenix M50

open access: yesMedwave
Introduction This study evaluates the efficacy of matrix-assisted laser desorption ionization–time of flight technology and the Phoenix™ M50 system for bacterial identification and antimicrobial susceptibility testing from bacterial concentrate obtained ...
Juan Araya Orellana   +3 more
doaj   +1 more source

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