Results 91 to 100 of about 590 (256)

Main‐chain polyfullerenes: Taking fullerene to the next dimension

open access: yesPolymer International, EarlyView.
This short review appraises main‐chain polyfullerenes. Their slow development over 30 years has suddenly boomed with a rapid growth due to exciting developments in solar energy. Abstract This mini‐review gives an overview of the development, chemistry, properties and applications of main‐chain polyfullerenes.
Marco Antônio GB Gomes   +4 more
wiley   +1 more source

An all‐polymer blend for photovoltaic applications: A combined photoabsorption, photoemission and ab initio multi‐configurational study

open access: yesPolymer International, EarlyView.
Near‐edge X‐ray absorption fine structure, X‐ray photoelectron spectroscopy and multi‐configuration self‐consistent field results show, respectively, preferential edge‐on and face‐on orientations for the thiophene and naphthalene diimide units of the PBDB‐T‐SF:P(NDI2OD‐T2) all‐polymer blend, and surface accumulation of the acceptor.
Cássia Ferreira Coutinho Pereira   +3 more
wiley   +1 more source

Cangaço e documentário: histórias, influências e vertentes

open access: yesCadernos de Estudos Sociais, 2012
RESUMO O cangaço foi retratado no cinema brasileiro em épocas distintas e de diversas formas, havendo cerca de cinquenta filmes sobre o tema, constituindo um gênero tipicamente brasileiro.
Marcelo Dídimo
doaj  

Biosurfactant production by Pseudomonas aeruginosa isolated from mining waste: From genomic analysis to development of a polymeric composite for removal of hexavalent chromium

open access: yesPolymer International, EarlyView.
Biosurfactant was produced by Pseudomonas aeruginosa using andiroba waste from Amazonia. A biosurfactant–alginate composite (Alg/BioS) was successfully synthesized via ionotropic gelation, and achieved up to 70% Cr6+ removal from water. Abstract Environmental contamination by heavy metals represents a significant challenge due to their persistence in ...
Paulo Diniz Austriaco   +11 more
wiley   +1 more source

Resistance, necropolitics, and revenge fantasies

open access: yesBrasiliana: Journal for Brazilian Studies
Bacurau by Kleber Mendonça Filho and Juliano Dornelles was the most controversial Brazilian film of 2019. It debuted at the Cannes Festival 2019 where it won the Special Jury Prize and later won more national and international distinctions.
Carolin Overhoff Ferreira
doaj  

Post-COVID-19 functional status scale: Cross-cultural adaptation and measurement properties of the Brazilian Portuguese version. [PDF]

open access: yesBraz J Phys Ther, 2023
de Facio CA   +8 more
europepmc   +1 more source

Synthesis and application of alginate@CuFe2O4 polymeric spheres in 17‐β‐estradiol adsorption processes in Amazonian rivers

open access: yesPolymer International, EarlyView.
Magnetic alginate beads, functionalized with copper ferrite, effectively remove 17‐β‐estradiol from Amazonian water, exhibiting optimized 238.65 μg g−1 capacity, fast 40 min kinetics, easy recovery, and successful remediation. Abstract The presence of endocrine‐disrupting compounds, such as 17‐β‐estradiol, in aquatic ecosystems poses a significant ...
Dante S Silva   +10 more
wiley   +1 more source

ENTRE O BOM E O MAU SELVAGEM: FICÇÃO E ALTERIDADE NO CINEMA BRASILEIRO

open access: yesEspaço Ameríndio, 2007
: This paper consists in an analysis of the indians image on the brazilian, achieved through the study of how the indian character is built and disseminated through the brazilian fiction films.RESUMO: O artigo realiza uma análise da imagem do índio no ...
JULIANO GONÇALVES DA SILVA
doaj  

Computational design of poly(p‐phenylene vinylene)‐based gas sensors: tunable reactivity and selectivity via side‐group functionalization

open access: yesPolymer International, EarlyView.
Side‐group functionalization enhances the reactivity and optoelectronic properties of poly(p‐phenylene vinylene) (PPV) derivatives for chemical sensing. PPV‐CN and PPV‐NO2 display strong interactions and pronounced responses, providing molecular‐level insights for designing high‐performance polymer‐based sensors.
Bruno Hori Barboza   +3 more
wiley   +1 more source

Design and optoelectronic profiling of a semicrystalline thiophene–phenylene copolymer for advanced organic electronics

open access: yesPolymer International, EarlyView.
A new semicrystalline copolymer, PTBT‐3OBu, was synthesized. Intramolecular S···O conformational locks induce high backbone planarity, promoting strong interchain coupling and molecular ordering in thin films, seen in an optical red shift. This synergy between planarity and semicrystalline morphology is promising for photovoltaic and electrochromic ...
Sandra Lúcia Nogueira   +7 more
wiley   +1 more source

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