Results 31 to 40 of about 775 (178)

Addressing the Right to Food Through Food Expenditure Burdens: Distributional Evidence Among Low‐Income Farming Families in Brazil (2012–2023)

World Food Policy, Volume 12, Issue 2, November 2026.
ABSTRACT Household food expenditure continues to be a key factor in ensuring the realization of the Human Right to Adequate Food. Particularly in Brazil, access to food can be limited by economic constraints in vulnerable families, especially among farming families, who have been more vulnerable to food insecurity in recent years in the country.
Lucas de Almeida Moura, Flávia Mori Sarti, Carolina Ribeiro Xavier, Dirce Maria Lobo Marchioni   +3 more
wiley   +1 more source

Sesgos en estimación, tamaño y potencia de una prueba sobre el parámetro de memoria larga en modelos ARFIMA

Lecturas de Economía, 2010
Castaño et al. (2008) proponen una prueba para investigar la existencia de memoria larga, basada en el parámetro de diferenciación fraccional de un modelo ARFIMA (p, d, q); se muestra que al usar una aproximación autorregresiva de orden igual al entero ...
Elkin Castaño, Santiago Gallón, Karoll Gómez   +2 more
doaj  

Changes in the transformative potential of action proposals in Finnish Red Lists from 1986 to 2019

Conservation Biology, Volume 40, Issue 4, August 2026.
Abstract Red lists provide critical knowledge regarding biodiversity decline, especially in Finland, where broad assessments have been made regularly since the 1980s. They deliver information on the threat status of species and ecosystems, propose actions to guide conservation policy, and have the potential to spur transformative change.
Anni Arponen, Anna Salomaa, Henna Fabritius, Aino Juslén, Saija Kuusela   +4 more
wiley   +1 more source

Gujarati, Damodar y Porter. Basic Econometrics

Ensayos de Economía, 2012
El objetivo de estas notas es hacer una reseña de la 5ª edición del texto de econometría de Gujarati, ahora con la autoría conjunta de Porter, Dawn, Basic Econometrics, Gujarati y Porter(2009). La reseña se compone de dos secciones.
Hernando Rendón
doaj  

Time's Sentimental Tale: Operationalizing Plot Within the Narrative Policy Framework

Policy Studies Journal, Volume 54, Issue 3, August 2026.
ABSTRACT The Narrative Policy Framework (NPF) has proven to be a successful analytical tool for examining the role of narratives within the policy process; however, the analysis of plot is still understudied. This gap persists due to difficulty in developing valid and reliable measures of plot and a lack of plot operationalizations using longitudinal ...
Rachel McGovern, Crystal Soderman, Alex Osei‐Kojo, Michael D. Jones, Kristin L. Olofsson   +4 more
wiley   +1 more source

Mothers against the natural order: Gender representations and desertion of identities in the drama of disinheriting a son in eighteenth‐century Barcelona  

Gender &History, Volume 38, Issue 2, Page 487-496, July 2026.
ABSTRACT The disinheritance of a firstborn son accustomed to the privileges of exclusion has for centuries been a dramatic event for families, especially if the decision was taken by a woman, the son's own mother. Very few dared to do so, because it symbolised a break with the notion of virtuous, compassionate motherhood; it represented a failure to be
Mariela Fargas Peñarrocha
wiley   +1 more source

Análisis de cambio de régimen en series de tiempo no lienales utilizando modelos TAR [PDF]

Lecturas de Economía, 2004
En muchas situaciones, la teoría recomienda un determinado modelo predictivo para una serie de tiempo financiera. Sin embargo, algunos comportamientos de estas series hacen que el modelo no sea apropiado.
Hermilson Velásquez, Fredy Pérez
doaj   +2 more sources

ELECTRICITY DEMAND FORECASTING USING A SARIMAMULTIPLICATIVE SINGLE NEURON HYBRID MODEL

Dyna, 2013
La combinación de modelos SARIMA y redes neuronales son una aproximación común para pronosticar series de tiempo no lineales. Mientras la metodología SARIMA es usada para capturar las componentes lineales en la serie de tiempo, las redes neuronales artifi
JUAN DAVID VELÁSQUEZ HENAO, VIVIANA MARIA RUEDA MEJIA, CARLOS JAIME FRANCO CARDONA   +2 more
doaj  

ORCHESTRATING DIFFERENCE AND SIMILARITY: Black Fungibility, and the Spatial Redrawing of Racial Categories in Spanish Colonial Morocco, Sahara and Guinea

International Journal of Urban and Regional Research, Volume 50, Issue 4, Page 960-981, July 2026.
Abstract In this article I dissect the spatial strategies through which the Spanish attempted to orchestrate both racial difference and similarity in the African colonies of Morocco, Western Sahara and Equatorial Guinea during the first half of the twentieth century.
Pol Fité Matamoros
wiley   +1 more source

Seeing herbaria in a new light: leaf reflectance spectroscopy unlocks trait and classification modeling in plant biodiversity collections

New Phytologist, Volume 251, Issue 2, Page 811-829, July 2026.
Summary Reflectance spectroscopy is a rapid method for estimating traits and discriminating species. Spectral libraries from herbarium specimens represent an untapped resource for generating broad phenomic datasets across space, time, and taxa. We conducted a proof‐of‐concept study using trait data and spectra from herbarium specimens up to 179 yr old,
Dawson M. White, Jeannine Cavender‐Bares, Charles C. Davis, J. Antonio Guzmán Q., Shan Kothari, Jorge M. Robles, José Eduardo Meireles   +6 more
wiley   +1 more source