Results 41 to 50 of about 172,621 (248)

Impactes do Preço da Água na Agricultura no Perímetro Irrigado do Vale de Caxito,

open access: yesRevista de Economia e Sociologia Rural, 2015
Resumo: O aumento da pressão sobre os recursos hídricos tem levado muitos países a reconsiderarem os mecanismos utilizados na indução do uso eficiente da água, especialmente na agricultura irrigada. Estabelecer o preço correto da água é um dos mecanismos
Jaime Agostinho Jerónimo   +2 more
doaj   +1 more source

El sistema compresor-turbina. Su cálculo y aplicaciones [PDF]

open access: yes, 1950
En esta Memoria trataremos del sistema compresor-tuibina trabajando en el ciclo de Braylon, o> de combustión a presión constante con expansión hasta la presión inicial.
Sánchez Tarifa, Carlos
core  

Accelerating Just Energy Transitions in Brazil: Pathways for Social Development

open access: yesLatin American Policy, Volume 17, Issue 1, March 2026.
ABSTRACT This critical article analyzes energy poverty in Brazil from the theoretical perspective of distributive justice, proposing the implementation of a new social regulation called Contribution to Social Development. The goal is to support the process of a just energy transition leading to a broader debate on energy planning and social issues ...
Marcio Giannini Pereira   +5 more
wiley   +1 more source

The Role of Public Finance to Address the Global Finance Gap for Drinking Water Services

open access: yesWorld Water Policy, Volume 12, Issue 1, February 2026.
ABSTRACT Meeting SDG target 6.1 for drinking water requires addressing the finance gap between the funds available from tariffs, taxes and transfers, and the life‐cycle costs of sustaining these services. While there are li‐mitations to applying repayable finance to address this gap, governments can be well suited to support both drinking water ...
Kristina Nilsson
wiley   +1 more source

Breve aproximación al fenómeno social de la mara: de las violencias al riesgo [PDF]

open access: yes, 2013
El carácter transnacional de las maras deriva del flujo migratorio que conlleva elacelerado proceso de globalización. El factor migratorio —que a nivel individual puede conllevarun serio desajuste del contexto familiar del migrante—, la desubicación de ...
Tarifa Ortiz, Rafael
core   +1 more source

Flooding in the Tamanduateí River Hydrographic Basin: A Spatial and Multifactorial Analysis

open access: yesTransactions in GIS, Volume 30, Issue 1, February 2026.
ABSTRACT Understanding the occurrence of urban floods and their conditioning factors is essential for effective management of urban watersheds. However, few studies have explored the spatial variability of these factors in detail. This study investigates the spatial relationships between conditioning factors and flood occurrences in the Tamanduateí ...
Ítalo Rafael Costa de Mira   +4 more
wiley   +1 more source

Costo en el tratamiento de desechos sólidos del GAD Sevilla de Oro, Provincia del Azuay-Ecuador

open access: yesRevista Venezolana de Gerencia, 2023
La normativa del sistema nacional de las finanzas públicas del Ecuador adapta normativas de costos dentro de la información financiera en todo el sector público no financiero del país; el objetivo general de la investigación es analizar los elementos de ...
David Richard Pincay Sancán   +3 more
doaj   +1 more source

Las Ambiciones de los Pilotos. [PDF]

open access: yes, 1982
Los pilotos de líneas aéreas han reivindicado, mediante diversas acciones, titulaciones universitarias para su carrera. Estas titulaciones facultarían a los pilotos para diversas misiones aeronáuticas adicionales a las de operación y mando de aeronaves ...
Sánchez Tarifa, Carlos
core   +1 more source

Pivotal Synthesis of Tetrasubstituted Epoxides from Ketones and α‐Halo B/Si Ylides with Understanding of the Activation Modes

open access: yesChemistryEurope, Volume 4, Issue 1, January 2026.
The preparation of diastereoselective 1,1,2,2‐tetrasubstituted borosilylepoxides is described, involving the epoxidation of ketones with α‐monohalo borylsilylmethane reagents. The nature of the ambiphilic reagent suppressed the Boron‐Wittig olefination.
Luis Tarifa   +8 more
wiley   +1 more source

Elementos del Cálculo de Turbinas de Gas 1ª Parte. [PDF]

open access: yes, 1952
En colaboración con los Ingenieros Aeronáuticos, Sres. R. Martí Pérez y J. Valdés Pedrosa, trataremos de exponer en tres artículos los fundamentos del cálculo y proyecto de turbinas de gas; entendiéndose por esta denominación no el motor de turbina, sino
Sánchez Tarifa, Carlos
core   +1 more source

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