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157 resultados, página 5 de 10

Local markets and food security. The case of the Milpera and Puuc regions in Yucatan

Ana Laura Bojórquez Carrillo Monserrat Vargas Jiménez Mireya Noemi Hernández Islas (2023, [Artículo, Artículo])

Food insecurity is a complex problem worldwide. A major part of this problem is the food supply. Local markets can represent a strategy for building social capital, as well as strategies for subsistence and sustainability of food value chains, contributing to food security and its effects. The objective of this research is to determine if the existence of a municipal market in the Milpera and Puuc regions of Yucatán favors the existence of food security, the consumption or the expense of natural foods. The population is located in 18 municipalities of Yucatán, Mexico. To carry out this study, a cross-sectional, non-experimental study, with a quantitative approach and correlational scope. The main techniques that were applied were descriptive statistics and contingency tables with respect to 6 hypotheses. This work shows that the existence of markets in the communities makes a significant difference because it positively impacts the food security of the inhabitants, since it allows them to have access to a wider variety of products and at the same time, favors the active dynamics of the economy of the community.

Local markets Food safety Local development Food sovereignty Rural areas Mercados locales Seguridad alimentaria Desarrollo local Soberanía alimentaria Zonas rurales CIENCIAS SOCIALES CIENCIAS SOCIALES

Islas de calor urbanas: un fenómeno poco estudiado en México

ULISES MANZANILLA QUIÑONES (2022, [Artículo])

El presente ensayo pretende dar a conocer la alternativa del uso de técnicas de percepción remota en la identificación de las islas de calor urbanas (ICU), fenómeno urbano mundial que ha sido poco estudiado en México. Mediante el procesamiento y análisis de imágenes satelitales es factible y confiable determinar áreas con una temperatura superficial mayor, es decir, calcular la diferencia en temperatura registrada entre un área urbana y un área rural. A través del uso de estas técnicas es posible diseñar planes para la mitigación y control de las ICU de las grandes ciudades de México.

AREAS URBANAS AUMENTO EN TEMPERATURA ESTRES TERMICO GEOGRAFIA URBANA METROPOLIS BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA VEGETAL (BOTÁNICA) ECOLOGÍA VEGETAL ECOLOGÍA VEGETAL