Results 51 to 60 of about 8,087 (211)

FORJAR UN CUERPO TRABAJADOR. ETNOGRAFÍA RETROSPECTIVA SOBRE LA CONSTRUCCIÓN DE MASCULINIDADES

open access: yesRevista de Estudios de Género: La Ventana, 2017
A través de una etnografía retrospectiva realizada en Jerez, Zacatecas, con un grupo de varones “viejos” con experiencia migratoria, argumento que la construcción social de las masculinidades es recreada y puesta en marcha por ellos y por otros mediante ...
Juan Miguel Sarricolea Torres
doaj  

Classification and selection of the main features for the identification of toxicity in Agaricus and Lepiota with machine learning algorithms [PDF]

open access: yesPeerJ
The occurrence of fungi is cosmopolitan, and while some mushroom species are beneficial to human health, others can be toxic and cause illness problems.
Jacqueline S. Ortiz-Letechipia   +7 more
doaj   +2 more sources

The Cytocidal Spectrum of Bacillus thuringiensis Toxins: From Insects to Human Cancer Cells

open access: yesToxins, 2020
Bacillus thuringiensis (Bt) is a ubiquitous bacterium in soils, insect cadavers, phylloplane, water, and stored grain, that produces several proteins, each one toxic to different biological targets such as insects, nematodes, mites, protozoa, and ...
Gretel Mendoza-Almanza   +6 more
doaj   +1 more source

Does Karyotype Structure Co‐Occurrence Patterns in a Chromosomally Diverse and Species‐Rich Clade of Lizards (Genus Sceloporus)?

open access: yesJournal of Biogeography, Volume 52, Issue 12, December 2025.
ABSTRACT Aim We investigated the biogeographic consequences of chromosomal speciation, or structural changes in chromosome arrangement that lead to reproductive isolation, an intriguing speciation mechanism with implications for the phylogenetic and geographic distribution of species and chromosomal diversity. Location. North and Central America. Taxa.
Isaac W. Krone, Erin P. Westeen
wiley   +1 more source

High Elevation Occurrences of Jaguars (Panthera onca, Linnaeus 1758) (Mammalia, Felidae) in Northwestern Mexico, With a Record of Collaborative Interactions

open access: yesEcology and Evolution, Volume 15, Issue 10, October 2025.
Jaguars in the northern end of their distribution have recently become the center of conservation efforts; however, the State of Chihuahua has been underrepresented in monitoring projects. We present five new records of jaguars in high altitudes as well as the first evidence of two jaguars exhibiting cooperative behavior in Mexico.
M. Fernanda del Pozo‐López   +2 more
wiley   +1 more source

Evaluación económica del impacto del turismo cultural en la ciudad de Zacatecas

open access: yesInvestigaciones Geográficas, 2012
El objetivo de este trabajo fue evaluar el impacto económico del turismo cultural en la ciudad de Zacatecas, con especial énfasis en su centro histórico.
Alejandrina De Sicilia Muñoz
doaj  

Spectral signature of ultraviolet solar irradiance in Zacatecas

open access: yesGeofísica Internacional, 2006
En este trabajo se presenta un análisis de la radiación espectral global ultravioleta (290–400 nm) registrada en Zacatecas, una ciudad vecina al trópico de cáncer, situada a 2500 m sobre el nivel del mar, latitud de 22°N y longitud de 102°O.
J. L. Pinedo V.   +4 more
doaj   +1 more source

Efecto en la erosión hídrica del suelo en pastizales y otros tipos de vegetación por cambios en el patrón de lluvias por el calentamiento global en Zacatecas, México

open access: yes, 2020
Para evaluar la erosion hidrica se utilizaron anomalias de temperatura y precipitacion para el periodo 2021-2080, estimadas con un ensamble de 11 modelos de circulacion global, para generar mapas de temperatura y precipitacion futuras a partir de la ...
F. Echavarría-Chaírez   +2 more
semanticscholar   +1 more source

Prioritization of Users in Ecosystem Service Valuation: Implications for the Design of Differentiated Conservation Policies

open access: yesEcology and Evolution, Volume 15, Issue 10, October 2025.
These findings support the proposal of differentiated conservation strategies aligned with the social priorities of various educational groups. It is concluded that public conservation policies must incorporate the diversity of social perceptions as an essential element for achieving sustainable and participatory environmental management.
Blanca Isabel Sánchez Toledano   +3 more
wiley   +1 more source

Concentración de las industrias manufactureras en México: El caso de Zacatecas

open access: yesFrontera Norte, 2011
La actividad industrial en México como factor de desarrollo desempeña un papel clave en el crecimiento regional. En este artículo se analiza la estructura de la industria manufacturera en el estado de Zacatecas a través de los 21 subsectores del scian ...
Francisco Javier Benita   +1 more
doaj  

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