Video Experimental Relacionado
Updated: Mar 21, 2026
04:56
Assessment of Social Transmission of Food Preferences Behaviors
Published on: January 25, 2018
8.6K
Vínculos ocultos entre la urbanización y los sistemas alimentarios
Karen C Seto1, Navin Ramankutty2
1Yale School of Forestry and Environmental Studies, Yale University, New Haven, CT 06511, USA. karen.seto@yale.edu navin.ramankutty@ubc.ca.
Science (New York, N.Y.)
|May 21, 2016
Resumen
La urbanización global está remodelando los sistemas alimentarios y los hábitos de consumo. Comprender los complejos vínculos entre los sistemas urbanos y alimentarios es crucial para garantizar la seguridad alimentaria en el futuro.
Área de la Ciencia:
- La urbanización y la ciencia de los sistemas alimentarios
- Estudios mundiales de seguridad alimentaria
Sus antecedentes:
- Las sociedades de todo el mundo están experimentando un cambio demográfico significativo hacia la vida urbana.
- La urbanización altera aspectos fundamentales de las interacciones entre humanos y alimentos, incluidos los comportamientos de compra, las percepciones de seguridad alimentaria y los estándares de saneamiento.
Objetivo del estudio:
- Resaltar la necesidad crítica de una mejor comprensión de la intrincada relación entre los entornos urbanos y los sistemas alimentarios.
- Identificar y proponer conexiones poco estudiadas dentro de los sistemas alimentarios urbanos para futuras investigaciones.
Principales métodos:
- Revisión y síntesis de la literatura actual sobre la urbanización y los sistemas alimentarios.
- Identificación de las lagunas de conocimiento y posibles vías de investigación.
Principales resultados:
- La urbanización presenta desafíos multifacéticos para la seguridad alimentaria.
- La investigación existente no ha explorado plenamente las complejas interdependencias entre el desarrollo urbano y la resiliencia del sistema alimentario.
Conclusiones:
- Una mayor investigación sobre los vínculos entre los sistemas urbanos y alimentarios es esencial para desarrollar estrategias eficaces para lograr la seguridad alimentaria mundial.
- Se requiere investigación interdisciplinaria para abordar la dinámica en evolución de los alimentos en las sociedades urbanizadas.
Videos de Conceptos Relacionados
01:23Dietary Connections
64.6K
In biological systems, most metabolic pathways are interconnected. The cellular respiration processes that convert glucose to ATP—such as glycolysis, pyruvate oxidation, and the citric acid cycle—tie into those that break down other organic compounds. As a result, various foods—from apples to cheese to guacamole—end up as ATP. In addition to carbohydrates, food also contains proteins and lipids—such as cholesterol and fats. All of these organic compounds are used...
64.6K
01:30Regulation of Food Intake
3.1K
Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
3.1K
00:48Optimal Foraging
14.2K
How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
14.2K
01:29Microbes in Food Production
4
Microbial fermentation is central to food biotechnology, enhancing flavor, texture, preservation, and stability. Fermentative microorganisms metabolize carbohydrates into organic acids, alcohols, and other metabolites that inhibit spoilage organisms and improve digestibility while contributing distinctive sensory qualities.In baking, amylases naturally present in flour hydrolyze starch into monosaccharides such as glucose, which Saccharomyces cerevisiae ferments anaerobically. Through...
4
01:16What is Climate?
21.3K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
21.3K
01:41Social Traps
27.0K
Social traps are negative situations where people get caught in a direction or relationship that later proves to be unpleasant, with no easy way to back out of or avoid. The concept was orignally introduced by John Platt who applied psychology to Garrett Hardin's "Tragedy of the Commons", where in New England herd owners could let their cattle graze in the common ground. This situation seems like a good idea, but an individual could have an advantage. If they owned...
27.0K