Results 81 to 90 of about 51,662 (264)

A situação da tuberculose na população indígena do alto rio Negro (Estado do Amazonas, Brasil)

open access: yesCadernos de Saúde Pública
A presença da tuberculose no alto rio Negro (Brasil) é reportada desde o início deste século. Um inquérito retrospectivo desde 1977 e 1990 dos registros dos casos de tuberculose de duas estruturas sanitárias mostrou 699 casos, refletindo taxa de ...
Dominique Buchillet, Pierre Gazin
doaj  

Return and Volatility Spillovers Among Major Cotton Markets

open access: yesAgribusiness, EarlyView.
ABSTRACT This study explores return and volatility transmission among major cotton markets. Several events have disrupted cotton supply and demand in recent years, leading to heightened price volatility and significant shifts in market interconnections.
Susmitha Kalli   +3 more
wiley   +1 more source

Pricing Dynamics in the US Hemp Market: A Vertical Price Transmission Analysis of the Hemp Value Chain

open access: yesAgribusiness, EarlyView.
ABSTRACT The US hemp market is a new and nascent industry that has been devoid of research for about half a century. This study examined the effects of exogenous shock on price at each phase of the value chain—Farm (hemp biomass), and its impact on prices at other phases of the value chain—Intermediary Processor (crude cannabidiol hemp) and Final ...
Solomon Odiase   +2 more
wiley   +1 more source

A Generalized Framework for Data‐Efficient and Extrapolative Materials Discovery for Gas Separation

open access: yesAdvanced Intelligent Discovery, EarlyView.
This study introduces an iterative supervised machine learning framework for metal‐organic framework (MOF) discovery. The approach identifies over 97% of the best performing candidates while using less than 10% of available data. It generalizes across diverse MOF databases and gas separation scenarios.
Varad Daoo, Jayant K. Singh
wiley   +1 more source

Redistributive land reforms, agricultural productivity, and structural change: New cross‐national evidence

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Large‐scale land reforms constitute a substantial redistribution of wealth and reallocation of agricultural land, which is a major form of asset and production input in developing countries. While land redistribution (from the rich to the poor) remains a highly controversial issue, extensive evidence on its effect is limited.
Devashish Mitra   +3 more
wiley   +1 more source

Experiencia de interacción en trabajo de campo en una zona rural colombiana Experiência de interação em trabalho de campo numa zona rural colombiana Interaction experience in field work in a Colombian rural zone

open access: yesInvestigación y Educación en Enfermería, 2011
Se describe la experiencia de trabajo de campo de la investigadora con indígenas Embera Chamí en el municipio de Jardín Antioquia, Colombia, las implicaciones de las relaciones de campo, el acercamiento a los participantes, ya sean individuos, grupos o ...
María Mercedes Arias Valencia
doaj  

Neighborhood social environments and mental health among youth and adults in public housing

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract Neighborhoods influence health in part through social processes. However, little is known about how multiple neighborhood social processes co‐occur, or about within (vs. between) neighborhood variation in social processes and health. This study asked how residents of a large public housing development describe their neighborhood and used ...
Jane Leer   +3 more
wiley   +1 more source

A community‐driven approach to address substance use and create a Great Plains American Indian addiction and recovery research agenda

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract Substance use, specifically opioid and methamphetamine use, is of increasing concern among American Indian (AI) populations in the Great Plains. This community‐driven participatory study investigated the impacts of substance use and community‐defined needs in treating addiction.
Brynn Luger   +8 more
wiley   +1 more source

A desumanização Presente nos Estereótipos de Índios e Ciganos

open access: yesPsicologia: Teoria e Pesquisa
RESUMO Analisamos, em dois estudos realizados em Sergipe e Alagoas, a desumanização de duas minorias étnicas: índios e ciganos. Participaram 678 não indígenas de ambos os sexos. No primeiro estudo, foram 378 moradores de cinco cidades de Sergipe e uma de
Marcus Eugênio Oliveira Lima   +2 more
doaj   +1 more source

The rain feels different under the same umbrella: Experiences with poverty across LGBTQ subgroups

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract Population‐based survey data have demonstrated that LGBTQ communities report varying rates of economic insecurity, yet very little research directly assesses how pathways into and experiences with poverty look different among subgroups at the intersections of sexual orientation and gender identity (SOGI).
Bianca D. M. Wilson, Lillian Nguyen
wiley   +1 more source

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