Results 51 to 60 of about 11,158 (199)

Environmental Risk Assessment and Anti‐Corrosion Efficacy of Safe‐by‐Design Nitrite‐Based Nanomaterials for Maritime Applications

open access: yesNano Select, Volume 7, Issue 2, February 2026.
The environmental behavior and impact of anti‐corrosion nanoadditives, ZnAl‐NO2 and MgAl‐NO2 layered double hydroxides (LDH), are assessed under marine conditions. These nanomaterials show instability in water but exhibit no or low toxicity to most tested marine species.
Joana Figueiredo   +12 more
wiley   +1 more source

Correlation-Based Abnormal SIP Dialog Identification: A Performance Comparison With Bayesian and Deep Learning Approaches

open access: yesIEEE Access
The Session Initiation Protocol (SIP) is crucial in establishing, maintaining, and terminating multimedia sessions. It is particularly vital for the operation of 4G/5G networks, where the network’s low latency and high reliability enable advanced ...
Clarisse Feio   +3 more
doaj   +1 more source

HIV-1-Transmitted Drug Resistance and Transmission Clusters in Newly Diagnosed Patients in Portugal Between 2014 and 2019

open access: yesFrontiers in Microbiology, 2022
ObjectiveTo describe and analyze transmitted drug resistance (TDR) between 2014 and 2019 in newly infected patients with HIV-1 in Portugal and to characterize its transmission networks.MethodsClinical, socioepidemiological, and risk behavior data were ...
Marta Pingarilho   +56 more
doaj   +1 more source

Hierarchical Twist: Chirality Across Scales in Cellulose Cholesterics

open access: yesAdvanced Optical Materials, Volume 14, Issue 4, 27 January 2026.
Hierarchical left‐ and right‐handed chiral nematic structures are observed in a solvent‐free thermotropic cellulose derivative. Free‐standing films show hierarchical twisted structures whose pitches respond differently to uniaxial strain: left‐handed pitches increase, ones decrease.
N. Monge   +7 more
wiley   +1 more source

Três palavras para mudar a comunidade [PDF]

open access: yes, 2013
Seminário / Webinário de homenagem a Robert L. Cooper, realizado na Universidade Aberta, em Lisboa, no dia 22 de outubro de 2013.Na evolução do domínio científico do Planeamento Linguístico tem sido feito um caminho no sentido do alargamento de ...
Salomão, Ricardo
core  

Análise comparativa entre medições in situ e estimativas numéricas na Praia da Cornélia, Costa da Caparica, Portugal [PDF]

open access: yesRevista da Gestão Costeira Integrada, 2012
DHA ...
Rocha,M. V. L.   +5 more
openaire   +3 more sources

Do culturable seed endophyte communities differ between native and invasive Fabaceae sharing the same habitat?

open access: yesPlant Biology, Volume 28, Issue 1, Page 249-260, January 2026.
Invasive Acacia seeds harbour richer and more functionally diverse endophyte communities than co‐occurring native Fabaceae, which could enhance establishment and invasion success of Acacia. Abstract Invasive plant species threaten ecosystems by decreasing biodiversity and altering their functioning.
J. G. Jesus   +3 more
wiley   +1 more source

Perfil do orientador de formação: critérios de seleção (workshop)

open access: yesRevista Portuguesa de Medicina Geral e Familiar
O crescente número de orientadores de internato médico em MGF aumenta a capacidade formativa, o que não é acompanhado pela maior colocação de médicos internos na maioria dos locais.
Ana Cristina dos Santos Ferreira   +2 more
doaj   +1 more source

Total electron scattering cross sections from thiophene for the (1-300 eV) impact energy range [PDF]

open access: yes, 2018
Experimental electron scattering cross sections for thiophene in the impact energy range from 1 to 300 eV have been measured with a magnetically confined electron transmission-beam apparatus.
Blanco, F.   +4 more
core   +5 more sources

Qualitative Prediction of End-to-End Delay in 5G Networks

open access: yesIEEE Access
Accurate end-to-end (E2E) delay prediction is critical for optimizing network performance and ensuring quality of service in 5G networks. This paper investigates two complementary qualitative E2E delay prediction methodologies: a Bayesian approach based ...
Diyar Fadhil, Rodolfo Oliveira
doaj   +1 more source

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