Results 41 to 50 of about 1,802,795 (193)

Innovations in polysaccharide‐based hydrogels in sustainable agriculture

open access: yesPolymer International, EarlyView.
Polysaccharide‐based hydrogels are promising in sustainable agriculture, as these natural polymers have the ability to absorb water and nutrients and release them gradually in the soil, in addition to ensuring biodegradability and lower cost. However, some challenges still need to be overcome.
Marcia Leticia Monteiro Gomes   +12 more
wiley   +1 more source

A Liberdade para apurar os sentidos do mundo [PDF]

open access: yes, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-Graduação em Jornalismo, Florianópolis, 2011Desde 2006, a revista piauí apresenta ao mercado editorial brasileiro uma proposta cuja ...
Valentini, Géssica Gabrieli
core  

Ocorrência de Cryptosporidium em cabras da raça Anglonubiana no município de Teresina, estado do Piauí, Brasil

open access: yes, 2023
This research aimed to investigate the occurrence of Cryptosporidium and correlate it with types of housing, feces consistency, and physiological parameters related to the reproductive status of Anglo-Nubian goats reared in the State of Piauí, Brazil.
de Oliveira, Marcelo Richelly Alves   +6 more
core   +1 more source

Avaliação da toxicidade aguda e das alterações histopatológicas em camundongos tratados com fitol

open access: yesRevista de Ciências Farmacêuticas Básica e Aplicada, 2012
O fitol, (3,7,11,15-tetrametilhexadec-2-en-1-ol), é um diterpeno pertencente ao grupo dos álcoois acíclicos insaturados de cadeia longa e ramificada.
Jéssica Pereira Costa   +7 more
doaj  

Influence of Surface Roughness and Temperature on Niobium Cathodic Cage Duplex Treatment Applied to VP20TS Steel

open access: yessteel research international, EarlyView.
Niobium cathodic cage duplex treatment is applied to VP20TS steel to evaluate the influence of surface roughness and temperature on coating performance. Results show that higher temperatures promote thicker nitride layers and increased microhardness, while finer surface preparation enhances adhesion and wear resistance, revealing optimal conditions for
Alan Bruno Costa Cardoso   +6 more
wiley   +1 more source

Climate‐Modulated Particle Toxicity: Acute Exposure to an Environmentally Informed Microplastic Mixture Induces Sex‐Dependent Systemic Reorganization in Swiss Mice

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Microplastic (MP) pollution is widely recognized as an emerging environmental threat. Yet, most studies still rely on controlled experimental conditions that poorly reflect environmental complexity, potentially underestimating risks under realistic scenarios, particularly during short‐term exposures. Here, we tested whether acute oral exposure
Guilherme Malafaia   +5 more
wiley   +1 more source

Risk and transmission of Visceral Leishmaniasis associated with the prevalence of the disease in Teresina-Piauí

open access: yesO Mundo da Saúde, 2021
The objective of this study is to identify the risk of transmission of Visceral Leishmaniasis (VL) associated with sanitation conditions and the prevalence of the disease in Teresina, Piauí.
Elisa Costa de Sousa   +3 more
doaj  

CARE AND CONTROL IN URBAN BRAZIL: The Subaltern Archive of Portarias

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract Security infrastructures permeate everyday life in Brazilian cities. Although security guards and doormen play an important and omnipresent role as social and technological mediators, their practices and perceptions have received little attention.
Tilmann Heil, Susana Durão
wiley   +1 more source

CARACTERIZAÇÃO PEDOLÓGICA DA PLANÍCIE COSTEIRA DO ESTADO DO PIAUÍ [PDF]

open access: yes, 2020
A diversidade natural dos solos reflete na paisagem a sua própria evolução, sendo estes resultados das interações entre os fatores de formação: material de origem, relevo, clima, organismos e tempo.
Cabral, Léya Jéssyka Rodrigues Silva   +2 more
core   +1 more source

POPULAR ENTREPRENEURSHIP: A Grammar of Moral Economy in Contemporary Urban Peripheries

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract This article examines how popular entrepreneurship operates as a cultural grammar that disrupts established practices of wageless life in urban peripheries. Drawing on four years of ethnographic research conducted in São Paulo, it analyses entrepreneurial discourses not simply as ideological impositions, but as ambivalent mediations of ...
Henrique Costa
wiley   +1 more source

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