Results 41 to 50 of about 45,637 (231)

¿Y cómo llegaron aquí?

open access: yesRuna
Entre los años 2022 y 2024 cursé la Maestría en Antropología Social, en la que desarrollé un trabajo etnográfico con mujeres que se encontraban encarceladas en el Centro de Reinserción Social (CERESO) Femenil del estado de Zacatecas, México. En un inicio
Luis Fernando Moreno Trejo
doaj   +1 more source

Artificial Neural Networks for Drought Forecasting in the Central Region of the State of Zacatecas, Mexico

open access: yesClimate
Drought is, among natural hazards, one of the most harmful to humanity. The forecasting of droughts is essential to reduce their impact on the economy, agriculture, tourism and water resource systems. In this study, drought forecast in the central region
Pedro Jose Esquivel-Saenz   +3 more
semanticscholar   +1 more source

Mariana Terán Fuentes, Bosquejo de un inmenso cuadro. Liberalismo constitucional y formas de gobierno en Zacatecas, 1823-1846

open access: yesOficio, Revista de Historia e Interdisciplina, 2018
Reseña a: Mariana Terán Fuentes, Bosquejo de un inmenso cuadro. Liberalismo constitucional y formas de gobierno en Zacatecas, 1823-1846.
Virginia Trejo Pinedo
doaj   +1 more source

Pairs-Production of Higgs in Association with Bottom Quarks Pairs at $e^+e^-$ Colliders

open access: yes, 2005
In a previous paper, we studied the Higgs pair production in the standard model with the reaction $e^{+}e^{-}\to t \bar t HH$. Based on this, we study the Higgs pair production via $e^{+}e^{-}\to b \bar b HH$.
A. GUTIÉRREZ-RODRÍGUEZ   +3 more
core   +1 more source

Comparative Analysis of Solar Radiation Forecasting Techniques in Zacatecas, Mexico

open access: yesApplied Sciences
This work explores the prediction of daily Global Horizontal Irradiance (GHI) patterns in the region of Zacatecas, Mexico, using a diverse range of predictive models, encompassing traditional regressors and advanced neural networks like Evolutionary ...
Martha Isabel Escalona-Llaguno   +8 more
semanticscholar   +1 more source

Nonlinear 3-D inversion of gravity data over a sulfide ore body

open access: yesGeofísica Internacional, 2000
El gradiente gravimétrico horizontal y el principio de superposición de campos potenciales son utilizados en la interpretación de los datos gravimétricos de un yacimiento de sulfuros mediante una estructura 3-D de densidades.
J. García-Abdeslem
doaj   +1 more source

Theorem on the proportionality of inertial and gravitational masses in classical mechanics [PDF]

open access: yes, 1997
We considered the problem of the proportionality of inertial and gravitational masses in classical mechanics. We found that the kinetic energy of a material mass point m in a circular motion with a constant angular velocity around another material point ...
Andrew E Chubykalo   +4 more
core   +2 more sources

Geochemistry of some metamorphic and sedimentary rocks from the mineral district of Zacatecas, Zac., México.

open access: yesGeofísica Internacional, 1978
The area of study is caracterized by a thick succesion of mainly rhyolitic flows which cover Mesozoic and older metamorphic rocks and a large porphyritic andesite body of Early Tertiary age.
David J. Terrell   +2 more
doaj   +1 more source

A Characterisation of Extreme‐Heat Occurrence and Its Trends in Mexico Based on a High Resolution Dataset

open access: yesInternational Journal of Climatology, EarlyView.
As Mexico faces rising temperatures and increasing events of extreme heat, improvements in the analysis and characterisation of these phenomena are necessary, as they offer new insights into the spatial variability of such trends and their underlying causes.
David Maximiliano Zermeño‐Díaz
wiley   +1 more source

Elementos críticos sobre las nanotecnologías en México

open access: yesESPACIO I+D: Innovación más Desarrollo, 2023
Como parte del Proyecto Conacyt-Ciencia de Frontera: una revisión crítica del desarrollo de las nanotecnologías en México, se realizó un cuestionario electrónico exploratorio sobre las investigaciones de nanotecnología para salud/medicina en el país. El
Ángeles Ortiz Espinoza   +2 more
doaj   +1 more source

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