Results 121 to 130 of about 23,627,032 (263)

Dois movimentos, dois séculos, um kitsch

open access: yesIdéias, 2013
A proposta deste artigo é examinar dois movimentos de protesto pela análise comparativa de seus antecedentes e desdobramentos, um ocorrido no século XX – as Diretas Já! - e o outro no século XXI – os “Indignados” ou 15-M. Concluímos que as sociedades tendem a desenvolver certo grau de moderação e de continuidade em seu comportamento quando vivenciam um
openaire   +1 more source

From underwater to drone: A novel multi-scale knowledge distillation approach for coral reef monitoring

open access: yesEcological Informatics
Drone-based remote sensing combined with AI-driven methodologies has shown great potential for accurate mapping and monitoring of coral reef ecosystems.
Matteo Contini   +6 more
doaj   +1 more source

Reorganization of Innate Immune Cell Lipid Profiles by Bioinspired Meroterpenoids to Limit Inflammation

open access: yesAdvanced Science, EarlyView.
Resolution pharmacology is an emerging strategy to tackle inflammatory pathologies. Bioinspired meroterpenoids induce a lipid mediator class switch toward inflammation resolution in vitro and in vivo by targeting key nodes in lipid mediator biosynthesis and neutral lipid dynamics.
Lorenz Waltl   +20 more
wiley   +1 more source

Sheet‐Size‐Dependent Mosaicity of 2D Phyllosilicate Membranes

open access: yesAdvanced Science, EarlyView.
This study explores how the size of 2D vermiculite sheets affects the structure of laminar membranes. High‐resolution x‐ray diffraction reveals how sheet size governs structural disorder and crystallinity. These changes directly impact ion permeability.
Min A Kim   +6 more
wiley   +1 more source

Interoperabilidade das bibliotecas digitais: o papel dos sistemas de identificadores persistentes - URN, PURL, DOI, Handle System, CrossRef e OpenURL

open access: yesTransinformação
O conceito de repositórios digitais distribuídos e interoperáveis - sejam eles bibliotecas ou arquivos digitais - para ser viável, depende fortemente de uma infra-estrutura de identificação persistente e da confiabilidade do esquema de links entre ...
Luís Fernando Sayão
doaj  

DOI Versioning Done Right

open access: yes, 2018
Spring 2017 Zenodo launched a new DOI versioning scheme. Unlike DOI versioning schemes in other generic repositories, no semantic versioning information is included in the identifier string.
Bigarella, Chiara   +7 more
core   +1 more source

GM‐CSF Promotes Neutrophil PD‐L1 Expression Through the VEGFR‐2/STAT6/CSF2 Signaling Axis in Oral Squamous Cell Carcinoma

open access: yesAdvanced Science, EarlyView.
VEGFR‐2 signaling in OSCC activates Src–STAT6‐dependent CSF2 transcription, driving tumor‐derived GM‐CSF secretion. GM‐CSF programs neutrophils to express PD‐L1 through STAT5–mTOR/S6K signaling, suppressing cytotoxic CD8+ T cells. This pathway reveals a tumor–neutrophil immune checkpoint circuit that limits anti‐PD‐1 responsiveness in OSCC.
Fangxing Zhu   +13 more
wiley   +1 more source

Dicationic Ion‐Pair Doping Enables Stable and High‐Performing Conducting Polymers for Organic Thermoelectrics

open access: yesAdvanced Science, EarlyView.
TAB–2TFSI enables efficient ion‐pair doping across a wide range of conjugated polymers, where the strongly oxidizing TAB core drives charge transfer, and the TFSI counterions promote favorable ionic compensation. This dicationic dopant promotes uniform dopant distribution, improves structural order, and increases carrier delocalization, establishing a ...
Juhyung Park   +14 more
wiley   +1 more source

Switching Spike Plasticity Shapes ACE2 Engagement Across SARS‐CoV‐2 Variants

open access: yesAdvanced Science, EarlyView.
Conformational plasticity governs SARS‐CoV‐2 spike function and ACE2 recognition. Using high‐speed AFM and single‐molecule force spectroscopy, we analyzed the ancestral spike and nine variants, revealing progressive rigidification from Delta, variable plasticity in Omicron sublineages, and JN.1 compaction.
Sarah Stainer   +17 more
wiley   +1 more source

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