Results 41 to 50 of about 36,725 (211)

Eriope barrinhae (Lamiaceae, Hyptidinae), a new montane species from northern Minas Gerais, Brazil

open access: yesNordic Journal of Botany, EarlyView.
In northern Minas Gerais, in the Monte Azul region, the Pico da Formosa mountain remains poorly explored botanically despite recent discoveries of new taxa. During fieldwork at the summit of this mountain, we discovered a distinctive population of Eriope that differs from all known species by a unique combination of morphological characters.
Danilo Alvarenga Zavatin   +4 more
wiley   +1 more source

Passio: o projeto

open access: yesRevista Laika, 2014
Por que essa ansiedade para criar imagens em movimento? Haveria sentido falar de arte e da ética da visão? Qual é a diferença entre observar os restos de um antigo manuscrito iluminado e o fragmento de um filme desconhecido, a pista de um aeroporto filmada por uma câmera de vigilância, um home movie de uma família que nunca conhecemos?
openaire   +1 more source

Impact of polymer aging on main‐chain poly(fullerene)s with halide chain‐ends for inverted perovskite solar cells

open access: yesPolymer International, EarlyView.
Subtle variations in halogen chemistry significantly affect the aging behavior of polymeric electron transport layers in inverted perovskite solar cells, underscoring the importance of precise chemical design for enhancing long‐term stability. Abstract As perovskite solar cells (PSCs) advance toward commercialization, the need for stable and easily ...
João V. Paulin   +7 more
wiley   +1 more source

Experimental and Modeling Investigation of Seawater Hydrolysis Effects on Aramid Fiber Rupture Behavior

open access: yesJournal of Polymer Science, EarlyView.
Hydrolytic aging in seawater produces markedly different mechanical responses among commercial Aramid fibers. While some fibers exhibit progressive degradation, others maintain stable or even improved tensile behavior. Experimental yarn‐scale testing combined with mathematical degradation modeling and Arrhenius‐based lifetime prediction provides new ...
Daniel Magalhães da Cruz   +6 more
wiley   +1 more source

Biodiversidade em um fragmento urbano de floresta paludosa em Ubatuba, São Paulo, Brasil

open access: yesHeringeriana
A urbanização promove mudanças no uso do solo e a fragmentação de habitats naturais, originando fragmentos florestais inseridos na matriz urbana. Avaliamos a avifauna e a herpetofauna de um fragmento urbano de 2,93 ha de floresta paludosa de Tabebuia ...
João Albert Bachur   +2 more
doaj   +1 more source

Influence of Oxygen Contamination on the Genesis of Nonmetallic Inclusions in a Microalloyed Steel

open access: yessteel research international, EarlyView.
Oxygen contamination during melting of steels strongly affects the evolution of nonmetallic inclusions. Controlled remelting experiments, combined with SEM/EDS analysis and thermodynamic simulations, reveal how reoxidation promotes the transformation of alumina‐based inclusions into complex FeO–MnO oxides and other interactions.
Leandro Pianca Prandi   +2 more
wiley   +1 more source

Primer record confirmado de ocurrencia de un Caracol terrestre indo-asiático en Brasil y las Américas

open access: yesRevista Minerva, 2017
La presencia del caracol no-nativo invasor indo-asiático Ariophantidae Macrochlamys cf. indica Benson, 1832, especie alienígena en las Américas y la cuenca del Caribe, es confirmada por primera vez en la región sur del Brasil, específicamente en los ...
Ignacio Agudo Padrón   +1 more
doaj   +1 more source

Dimethyl‐, Diethyl‐, and Propylene Carbonates: An Emerging Class of Green Solvents for Organic Synthesis

open access: yesThe Chemical Record, EarlyView.
This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros   +5 more
wiley   +1 more source

Natural history of the marsupial frog Gastrotheca albolineata (Anura: Hemiphractidae) in lowland Brazilian Atlantic Forest

open access: yesPhyllomedusa: Journal of Herpetology, 2020
Natural history of the marsupial frog Gastrotheca albolineata (Anura: Hemiphractidae) in lowland Brazilian Atlantic Forest. Gastrotheca albolineata is a marsupial frog endemic to the Atlantic Forest in southeastern Brazil.
Edelcio Muscat   +7 more
doaj  

O campo da educação e demandas para a terapia ocupacional no Brasil

open access: yesRevista de Terapia Ocupacional da Universidade de São Paulo, 2007
Trata-se de discutir a necessidade de intervenções sociais calcadas na educação e na defesa dos direitos decorrentes da cidadania, para adolescentes e jovens vulneráveis socialmente, tomando-se o caso da escola pública no Brasil.
Roseli Esquerdo Lopes   +1 more
doaj   +1 more source

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