Results 71 to 80 of about 13,320 (205)

Análisis de sensibilidad de los parámetros que afectan al espesor de la capa solidificada en el proceso de colada continua de aceros

open access: yesRevista de I + D Tecnológico, 2017
Se realizó un análisis de sensibilidad del efecto del flujo de calor, la temperatura y velocidad de colada en la estimación del espesor de la capa solidificada en el proceso de colada continua.
Edgar López-Martínez   +2 more
doaj  

Dimensiones discursivas del sistema de sexo y género entre los indígenas zapotecas del Istmo de Tehuantepec (México) [PDF]

open access: yes, 2008
La interacción social entre géneros se ha ido modificando históricamente, puesto que se trata de un sistema relacional que varía según las coordenadas sociales, económicas o culturales de cada época y de cada espacio concretos.
Gómez Suárez, Águeda   +1 more
core   +3 more sources

Does the state usher in a special stage in history? Probing the Dawn of Everything: A new history of humanity

open access: yesThe Australian Journal of Anthropology, Volume 36, Issue 2, Page 321-339, August 2025.
Abstract In The Dawn of Everything, David Graeber and David Wengrow suggest that almost all modern features of social structures— cities, religious rituals, kingships, accounting practices, rational arguments, private property, and so on—date to epochs prior to the neolithic revolution.
Elias L. Khalil
wiley   +1 more source

Differentiation and genetic diversity of Phaseolus lunatus wild populations from Chiapas, Mexico, and their genetic relationships with MI and MII groups

open access: yesBotan‪ical Sciences, 2016
Background. Understanding the genetic structure of wild relatives of domesticated species is crucial for its conservation and to elucidate the sites of crop domestication.
Pedro Jesús Ruiz-Gil   +4 more
doaj   +1 more source

The herpetofauna of the cloud forests of Honduras [PDF]

open access: yes, 2010
The cloud forest amphibians and reptiles constitute the most important herpetofaunal segment in Honduras, due to the prevalence of endemic and Nuclear Middle American-restricted species.
McCranie, James R., Wilson, Larry David
core  

A mistletoe tale: postglacial invasion of Psittacanthus schiedeanus (Loranthaceae) to Mesoamerican cloud forests revealed by molecular data and species distribution modeling [PDF]

open access: yes, 2016
Map showing collecting sites of Psittacanthus schiedeanus. Numbers refer to collection sites and thin ellipses show collecting sites within the cloud forest areas.
Andrés Ernesto Ortiz-Rodriguez   +7 more
core   +7 more sources

Distribución, tallas y proporción sexual del calamar Lolliguncula panamensis del Golfo de Tehuantepec, México

open access: yesEcosistemas y Recursos Agropecuarios, 2019
En el Golfo de Tehuantepec se desarrolla una intensa actividad pesquera centrada en la captura de camarones y peces demersales. Como parte de la pesca de arrastre de camarones, la captura de Lolliguncala panamensis es abundante.
Hugo Alonso Guzmán-Intzin   +3 more
doaj   +1 more source

Improvements in the Seasonal Prediction of the Mid‐Summer Drought Based on the North American Multimodel Ensemble

open access: yesInternational Journal of Climatology, Volume 45, Issue 6, May 2025.
Although the basic features of the Mid‐Summer Drought (MSD) were not adequately reproduced in the North American Multi‐Model Ensemble forecasts, these forecasts contained the main drivers associated with its interannual variability; after applying a relatively simple Model Output Statistics technique, these drivers resulted in skilful, regional‐scale ...
David Maximiliano Zermeño‐Díaz   +1 more
wiley   +1 more source

Formación de la competencia liderazgo educacional en los directores de escuelas (2015-2020)

open access: yesAnales de la Academia de Ciencias de Cuba, 2021
Introducción: En Cuba la formación del personal docente ha sido una preocupación desde el propio triunfo de la Revolución cubana hasta la actualidad, como lo ha sido la capacitación y superación de quienes dirigen a dichos docentes.
Oruam Cadex Marichal Guevara   +17 more
doaj  

"Bringing the state back in": la presencia del Estado a nivel local - Oaxaca en la época de la Independencia [PDF]

open access: yes, 2009
Historical writing has emphasized that Spanish rule was considered legitimate in the American colonies until the beginning of the 19th century. Th is was also the case for subaltern groups.
Hensel, Silke
core   +1 more source

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