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Eficiencia impositiva

open access: yes, 2021
Tema 6. Esquemas de la presentación del tema "Eficiencia impositiva". Incorpora la definición de los conceptos principales, análisis de los determinantes de la eficiencia impositiva, gráficos y ejemplos.
Universitat de Barcelona. Grup d'Innovació Docent en Economia dels Impostos
core  

Evaluación de la eficiencia energética de motores trifásicos de inducción alimentados desde un sistema fotovoltaico

open access: yes, 2022
La tesis de maestría en Eficiencia Energética y Energía Renovable que se presenta tiene como objetivo evaluar la eficiencia energética de motores trifásicos de inducción (MTIs) alimentados desde sistemas fotovoltaicos (SFs). La investigación se origina a
Castro Charris, Narciso Antonio   +1 more
core   +1 more source

Evaluación de la eficacia cosmética de cremas elaboradas con aceites extraídos de especies vegetales Amazónicas: Mauritia Flexuosa (Morete), Plukenetia Volubilis (Sacha Inchi) y Oenocarpus Bataua (Ungurahua)

open access: yesLa Granja: Revista de Ciencias de la Vida, 2012
Investigaciones anteriores demuestran la actividad antioxidante de los aceites de Mauritua flexuosa (Morete), Plukenetia volubilis (Sacha inchi) y Oenocarpus bataua (Ungurahua), se realizaron formulaciones de cremas de aplicación cosmética y emulsiones ...
Tatiana Mosquera   +3 more
doaj   +1 more source

Pollinator efficiency, rather than bee decline, explains a shift to hummingbird pollination in tropical montane forests

open access: yesNew Phytologist, Volume 251, Issue 4, Page 2237-2247, August 2026.
Hummingbird pollination is a hallmark of American plant diversity and has long been thought to evolve in tropical mountains due to declining bee activity. Using sister species of Costus specialized on bees (C. kuntzei) and hummingbirds (C. wilsonii), we show that this shift is not driven by reduced bee visitation with elevation, but by greater ...
Pedro Juárez   +7 more
wiley   +1 more source

It Does Matter. A New Framework on the Influence of Policy Evaluation

open access: yesPolicy Studies Journal, Volume 54, Issue 3, August 2026.
ABSTRACT Governments worldwide have invested heavily in policy evaluation, providing many policymakers with a steady stream of evidence into the effectiveness, efficiency, or relevance of policies. Yet, despite these investments, systematic knowledge about the actual influence of policy evaluations remains surprisingly limited.
Pirmin Bundi, Valérie Pattyn
wiley   +1 more source

The Effect of Migration on Perceived Safety and Sleep Quality: An Analysis From Rural and Urban Indigenous Wixárika Communities in Jalisco, Mexico El efecto de la migración en la seguridad percibida y la calidad del sueño: un análisis en comunidades indígenas Wixaritari rurales y urbanas en Jalisco, México

open access: yesAmerican Journal of Biological Anthropology, Volume 190, Issue 3, July 2026.
ABSTRACT Objectives This study explores how perceived safety influences sleep quality among Wixárika individuals in Mexico. We compared the sleep quality of those living in a rural town in northern Jalisco with those living in the Guadalajara Metropolitan Area (GMA).
Leela McKinnon   +7 more
wiley   +1 more source

Environmental and socio‐economic factors behind data provision in 17 citizen science projects

open access: yesPeople and Nature, Volume 8, Issue 7, Page 2251-2265, July 2026.
Abstract Citizen science approaches in ecology have recently become increasingly popular. Although many advantages, such as the cost‐effective collection of vast amounts of data, outweigh the disadvantages, most projects face difficulties, such as non‐random sampling, pseudo‐absences or various biases, such as detection/reporting biases or participant ...
Zsóka Vásárhelyi   +21 more
wiley   +1 more source

Eficiencia Administrativa Municipal

open access: yesVida Científica Boletín Científico de la Escuela Preparatoria No. 4
El presente estudio analiza la influencia de la estructura de las categorías de los puestos, la alineación de perfiles con funciones, y el nivel de profesionalización y capacitación operativa de los servidores públicos en la administración pública municipal en el contexto del municipio de Progreso de Obregón, Hidalgo.
José W. Barrera-Vazquez   +2 more
openaire   +1 more source

Political Cycles, Electricity Policy, and Mexico's Economy

open access: yesLatin American Policy, Volume 17, Issue 2, June 2026.
ABSTRACT Electricity reform in Mexico should stimulate economic growth, improve energy efficiency, and reduce greenhouse gas emissions. This article evaluates the successes and failures of reform and draws lessons across political cycles by analyzing changes in political dynamics—often tied to policy reversals—and the legal framework during the pro ...
David Bonilla
wiley   +1 more source

Tree‐ring structure determines the temporal coordination between xylem growth and the gain in hydraulic conductivity in the outermost ring

open access: yesNew Phytologist, Volume 250, Issue 6, Page 3732-3746, June 2026.
Summary The study of seasonal xylem hydraulics has predominantly focused on embolism‐induced losses, whereas growth‐driven increases in hydraulic capacity have received little attention. We assessed the intra‐annual dynamics of xylem formation and gain of conductivity in the current‐year ring of three species with contrasting tree‐ring structure ...
Laura Fernández‐de‐Uña   +4 more
wiley   +1 more source

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