Results 31 to 40 of about 9,268 (119)

Incorporating light pollution into projections of the future distribution of Aspisoma sticticum Gemminger, 1870 under climate change in South America

Insect Conservation and Diversity, EarlyView.
Climate‐only models predict severe habitat contractions by 2100, especially in the Amazon, Cerrado and Caatinga, while southern and coastal Atlantic Forest areas remain refugial. Including artificial light at night increased projected stability and apparent suitability gains, especially in central and eastern South America.
Janderson Batista Rodrigues Alencar, Leandro Zeballos, Fabrício Beggiato Baccaro, Luiz Felipe Lima da Silveira   +3 more
wiley   +1 more source

Biphenyl as a Privileged Structure in Medicinal Chemistry: Advances in Anti-Infective Drug Discovery

Molecules
The discovery of novel anti-infective agents is a continuous challenge in medicinal chemistry, particularly due to the rise in resistant fungal and viral strains.
Marilia Oliva Gandi, Rodolfo Rodrigo Florido França, Frederico Silva Castelo-Branco, Nubia Boechat   +3 more
doaj   +1 more source

Síntese e caracterização de poliuretanos segmentados contendo blocos de peso molecular controlado: parte 1 preparação e caracterização dos materiais Synthesis and characterization of segmented polyurethanes containing blocks of controlled molecular weight: 1. Materials preparation and characterization

Polímeros, 1999
Um novo método de síntese de poliuretanos segmentados foi desenvolvido, no qual segmentos de características bem definidas foram preparados separadamente e acoplados em uma etapa seguinte.
C. L. Almeida, Leni C. Akcelrud
doaj   +1 more source

Anastrepha grandis: Distribution, Host Plants, and Management—A Review

Entomologia Experimentalis et Applicata, Volume 174, Issue 9, Page 977-988, September 2026.
This graphic summary illustrates the databases and languages used in the bibliographic search for the review of the geographic distribution of Anastrepha grandis (Diptera: Tephritidae) in the Americas and different regions of Brazil, the main host plants of the Cucurbitaceae family, the management strategies used, and the main challenges related to the
Liz Maria Matilde Duarte, Manoel Araécio Uchoa, Isaias de Oliveira   +2 more
wiley   +1 more source

Biobased Polyurethane Films Based on Andiroba (Carapa guianensis) and Buriti (Mauritia flexuosa) Oil Polyols

Journal of Applied Polymer Science, Volume 143, Issue 30, August 10, 2026.
Polyurethane films were prepared from andiroba (Carapa guianensis) and buriti (Mauritia flexuosa) oil‐derived polyols, emphasizing their potential as bio‐based materials. UV–Vis analysis indicates the retention of carotenoid‐related chromophoric features within the polymer matrix.
João A. P. da Silva, Amanda L. Ferreira, Felipe F. C. Tavares, Chana M. da Silva, Cesar L. Petzhold, Nilo S. M. Cardozo   +5 more
wiley   +1 more source

Síntese e caracterização do sistema ZrO2-SiO2 com adição de cobalto para uso como pigmentos cerâmicos Synthesis and characterization of the system ZrO2-SiO2 with cobalt addition for use as ceramic pigments

Cerâmica, 2005
Pós de ZrSiO4 dopado com cobalto foram sintetizados por meio do método dos precursores poliméricos para obtenção de pigmentos cerâmicos. O efeito de diferentes concentrações de Co2+ na transição de fase t-ZrO2 para ZrSiO4 foi estudado por meio de ...
S. Cava, S. M. Tebcherani, S. A. Pianaro, C. A. Paskocimas, E. Longo, J. A. Varela   +5 more
doaj   +1 more source

Green Chiral HPLC Method for Lumefantrine Analysis: Method Development, Greenness Assessment, and Computational Studies

Chirality, Volume 38, Issue 8, August 2026.
A green chiral HPLC method was developed and validated for the determination of lumefantrine enantiomers. The method employs ethanol as a mobile phase as a sustainable and efficient alternative to hexane. The chiral recognition mechanism and elution order of the enantiomers were investigated using electronic circular dichroism and molecular docking ...
Amanda Mohr, Gustavo Machado das Neves, Érika Segala, Vera Lucia Eifler‐Lima, Martin Steppe   +4 more
wiley   +1 more source

Use of chitin as a template for the preparation of mesostructured ZSM-5

Cerâmica
In this work, mesostructured ZSM-5 zeolite was prepared using chitin as a new template to produce mesoporosity. Different amounts of chitin were used for the synthesis of ZSM-5 in order to verify its influence on the formation of mesopores.
F. C. Drumm, J. S. de Oliveira, M. S. P. Enders, E. I. Müller, E. A. Urquieta-González, G. L. Dotto, E. L. Foletto, S. L. Jahn   +7 more
doaj   +1 more source

Síntese da zeólita A utilizando diatomita como fonte de sílicio e alumínio

Cerâmica, 2014
A zeólita A é uma típica zeólita sintética muito utilizada nas indústrias como trocador de íons em formulação de detergentes. Por outro lado, a diatomita, material rico em sílica (cerca de 80%), é utilizada em diversos setores industriais como agente ...
C. R. Nascimento, E. M. O. Sobrinho, R. B. Assis, R. F. Fagundes, L. Bieseki, S. B. C. Pergher   +5 more
doaj   +1 more source

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

The Chemical Record, Volume 26, Issue 8, August 2026.
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, Livia C. L. Valente, Thiago Barcellos, Daniela Hartwig, Laura Abenante, Eder J. Lenardão   +5 more
wiley   +1 more source