Results 131 to 140 of about 1,556,463 (262)

Synthesis, Biological Evaluation, and Theoretical Study of Indenoquinolinylphosphine Oxide Derivatives as Topoisomerase 1 Inhibitors and Antiproliferative Agents

open access: yesChemMedChem, Volume 21, Issue 5, 13 March 2026.
The topoisomerase I inhibition and antiproliferative activities of phosphorated indenoquinoline derivatives were investigated. The target hybrid quinoline and tetrahydroquinoline compounds were synthesized via a two‐step Povarov‐type cycloaddition.
Alba Rodriguez   +5 more
wiley   +1 more source

Wavelength‐Dependent Differential Amplification of Raman Scattering by Chiral Gold Nanorods for Multiplexed Encoding

open access: yesAdvanced Functional Materials, Volume 36, Issue 20, 9 March 2026.
The SERS spectra of reporter molecules adsorbed on chiral gold nanorods depends on the handedness of circularly polarized light (CPL‐SERS). The bisignate plasmonic CD spectra of chiral nanorods provides wavelength‐dependent CPL‐SERS. Selective discrimination of chiral nanorod handedness and different Raman reporters allow highly sensitive codification ...
Andrés Serrano‐Freijeiro   +9 more
wiley   +1 more source

Indexação de variedades de videira provenientes do cultivo in vitro visando a micropropagação de material livre do cancro-bacteriano. [PDF]

open access: yes, 2011
O cancro-bacteriano causado por Xanthomonas campestris pv. viticola (Xcv) é uma das mais importantes doenças da videira no Vale do São Francisco. Recomenda-se uma combinação de várias medidas para diminuir a severidade da doença, pois ainda não existem ...
BARBOSA, M. A. G.   +5 more
core  

Several occurrences of osteomyelitis in dinosaurs from a site in the Bauru Group, Cretaceous of Southeast Brazil

open access: yesThe Anatomical Record, Volume 309, Issue 3, Page 642-648, March 2026.
Abstract This study investigates the occurrence of osteomyelitis in non‐avian dinosaurs, focusing on the Ibirá locality, a site with a high incidence of this pathological condition. We analyzed six new osteopathic sauropod specimens from the Upper Cretaceous of Brazil.
Tito Aureliano   +3 more
wiley   +1 more source

O tempo do arquivo: a decadência do museu e a poética da história

open access: yes, 2011
Neste artigo, estou interessado na instituição moderna do museu ocidental. Muitos museus tiveram seu começo no século XIX e persistem até hoje influenciando, além dos centros Europeus e Norte Americanos, o desenvolvimento subseqüente de outros museus ...
Hetherington, Kevin
core  

Pressure‐Driven Structural Distortion in Cold Sintered LiFePO4|Li1.3Al0.3Ti1.7(PO4)3 Composite Solid Electrolyte Bilayers

open access: yesBattery Energy, Volume 5, Issue 2, March 2026.
Cold sintering pressure critically affects LiFePO4‐composite solid electrolyte bilayers' performance. High pressure (720 MPa) causes lattice distortions and irreversible phase changes, impairing lithium diffusion and cycling stability, while lower pressure (300 MPa) preserves structure and enables superior battery performance.
Sergio Ferrer‐Nicomedes   +6 more
wiley   +1 more source

Objeto de aprendizagem para o ensino de química : alotropia e a história da áfrica [PDF]

open access: yes, 2009
Este trabalho tem como propósito descrever e analisar o processo de elaboração do objeto de aprendizagem "Alotropia e África", proposto por alunos do curso de Licenciatura em Química, da Universidade Federal de Uberlândia, Minas Gerais, Brasil, para ...
Pinheiro Soares, J.   +2 more
core   +1 more source

Electrified rhythms: How hydropower infrastructure transforms hydrosocial relations of riverine communities in the Lower Sogamoso River, Colombia

open access: yesPeople and Nature, Volume 8, Issue 3, Page 782-796, March 2026.
Abstract Hydropower dams regulate water flows for millions of downstream inhabitants worldwide, altering water availability. Under a changing climate, flow control is often framed technically and politically as being essential for reducing drought and flood risks. However, it can also disrupt ecological flows, impact livelihoods and erode environmental
Laura Betancur‐Alarcón   +4 more
wiley   +1 more source

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