Results 71 to 80 of about 2,548,065 (281)

Tailoring Microstructure and Hardness in Maraging 300 Steel via 2.4 wt.% Niobium Addition and Controlled Aging Treatments

open access: yessteel research international, EarlyView.
High Nb (2.4 wt.%) addition to Maraging 300 steel drives lattice distortion and nanoscale Nb–Mo‐rich precipitation, confirmed by energy‐dispersive X‐ray spectroscopy mapping (Mo ~5.4 wt.%, Nb ~2.5 wt.%). Nanoindentation reveals strong matrix hardening (H >4.8 GPa) at 480°C aging, while 560°C induces ~1.92 vol.% reverted austenite, enabling tunable ...
Laylla Sharon B. Peixoto   +9 more
wiley   +1 more source

ANEMIA APLÁSTICA: CAUSAS, MANEJO E PERSPECTIVAS FUTURAS EM PEDIATRIA

open access: yesHematology, Transfusion and Cell Therapy
Objetivos: Esse estudo objetiva reunir informações acerca de todos os aspectos da anemia aplástica (AA) em pacientes pediátricos, com o fito que o conhecimento sobre as causas e os avanços no tratamento dessa doença seja disseminado.
IS Sousa   +9 more
doaj   +1 more source

HISTÓRICO DA AGRICULTURA URBANA EM FORTALEZA/CE

open access: yesCaderno de Geografia
A agricultura urbana em Fortaleza, Ceará, constitui uma prática social e ambiental de longa duração, que atravessa distintas fases de desenvolvimento, desde as primeiras experiências comunitárias nas décadas de 1980 e 1990 até a atualidade. Este artigo reconstrói o percurso histórico da agricultura urbana e periurbana na capital cearense, analisando ...
Iara Rafaela Gomes   +1 more
openaire   +1 more source

A EXPLOSÃO IMOBILIÁRIA NA PERIFERIA DE FORTALEZA (CE)

open access: yesCaminhos de Geografia, 2015
Este artigo consiste num estudo teórico-prático elaborado a partir de investigações desenvolvidas entre 2008 e 2012. Sua principal finalidade é estudar a criação simbólica e material de novos produtos imobiliários na periferia de Fortaleza. Usa como recorte espacial, a Região da Água Fria, frente sudeste de expansão metropolitana.
openaire   +3 more sources

Influence of Surface Roughness and Temperature on Niobium Cathodic Cage Duplex Treatment Applied to VP20TS Steel

open access: yessteel research international, EarlyView.
Niobium cathodic cage duplex treatment is applied to VP20TS steel to evaluate the influence of surface roughness and temperature on coating performance. Results show that higher temperatures promote thicker nitride layers and increased microhardness, while finer surface preparation enhances adhesion and wear resistance, revealing optimal conditions for
Alan Bruno Costa Cardoso   +6 more
wiley   +1 more source

Oxidative Stress Biomarkers in the Shrimp Macrobrachium amazonicum (Heller, 1862): Assessment in an Environmental Preservation Area in the Brazilian Amazon

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Anthropogenic activities generate a significant amount of pollutants that are released into the environment, causing physiological and ecological disturbances. Among the xenobiotics present in aquatic ecosystems, numerous chemical and organic compounds have oxidative potential or are metabolized through oxidative processes, which may amplify ...
Natália Eduarda da Silva   +6 more
wiley   +1 more source

Correlation Between Anastomotic Leakage and the Anastomotic Position of the Gastric Conduit After Esophagectomy Using ICG Fluorescence Imaging Stratification

open access: yesWorld Journal of Surgery, EarlyView.
This study aimed to clarify the correlation between anastomotic leakage and anastomotic position after esophagectomy for esophageal cancer, stratified by gastric conduit blood flow assessed using indocyanine green (ICG) fluorescence imaging. ABSTRACT Background This study aimed to clarify the correlation between anastomotic leakage and anastomotic ...
Yamato Ninomiya   +9 more
wiley   +1 more source

POPULATION KNOWLEDGE AND PERCEPTIONS ABOUT HIV, SEROPHOBIA, PREP, AND PEP IN FORTALEZA

open access: yesBrazilian Journal of Infectious Diseases
Introduction/Objective: HIV infection remains a major global public health challenge, requiring integrated strategies for prevention, diagnosis, and treatment.
Vinicius Machado Salles   +11 more
doaj   +1 more source

Aspectos da mídia exterior na cidade de Fortaleza

open access: yes, 2010
This study has as objective to verify the existence of an urban organization for the act of receiving of the exterior media and to know which the opinion of the population on the volume of the external media in the city of Fortaleza.
Araújo, Juliana Lotif   +1 more
core   +1 more source

Testicular Echobiometry and Sperm Characterization in Oncilla (Leopardus tigrinus) From the Caatinga Biome

open access: yesZoo Biology, EarlyView.
We describe testicular echobiometry and sperm characterization in oncilla (Leopardus tigrinus) from the Caatinga biome, Ceará, Brazil. ABSTRACT Among neotropical small felids, the Leopardus tigrinus is classified as vulnerable by the International Union for Conservation of Nature, but studies on reproductive morphology and physiology are scarce for ...
Yuri Gonçalves Matos   +8 more
wiley   +1 more source

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