Results 21 to 30 of about 1,097 (295)

Validación de constructo de componentes de agencia académica evaluados en web

open access: yesRevista de Investigación en Psicología, 2017
Con datos de 1361 estudiantes, validamos el metaevaluador web donde: a) el banco de estrategias de estudio y autorregulación usó 50 ítems calibrados para realizar análisis factoriales confirmatorios.
Sandra Castañeda F.   +2 more
doaj   +1 more source

Pharmacology of darbepoetin alfa [PDF]

open access: yesNephrology Dialysis Transplantation, 2007
The distinct molecular structure of darbepoetin alfa, in both its amino acid sequence and its carbohydrate content, results in a biologic profile with lower binding affinity, longer circulating half-life, and higher in vivo potency compared with the epoetins.
Iain C, Macdougall   +2 more
openaire   +2 more sources

Erythropoietin modulates hepatic inflammation, glucose homeostasis, and soluble epoxide hydrolase and epoxides in high‐fat diet‐induced obese mice

open access: yesFEBS Open Bio, EarlyView.
Erythropoietin administration suppresses hepatic soluble epoxide hydrolase (sEH) expression, leading to increased CYP‐derived epoxides. This is associated with a shift in hepatic macrophage polarization characterized by reduced M1 markers and increased M2 markers, along with reduced hepatic inflammation, suppressed hepatic lipogenesis, and attenuated ...
Takeshi Goda   +12 more
wiley   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

open access: yesAdvanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

open access: yesAdvanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou   +5 more
wiley   +1 more source

La Escala de Identidad Etnica Multigrupo (EIEM) en el contexto costarricense 1

open access: yesActualidades en Psicología, 2011
El presente  artículo describe las propiedades psicométricas de  un instrumento  para la medición de  la identidad  étnica  y sus componentes en jóvenes  costarricenses: la “Escala  de Identidad Etnica Multigrupo” (EIEM) desarrollada por Phinney (1992).
Vanessa Smith-Castro
doaj   +1 more source

A Holistic Stabilization of the Anode in Lithium‐Sulfur Batteries Through a Ternary Alloy Fusion

open access: yesAdvanced Functional Materials, EarlyView.
LiTeAl anodes fabricated through a scalable thermal fusion technique holistically addresses the stability issues faced by lithium‐metal anodes in lithium–sulfur batteries. Aluminum forming a skeletal network with lithium suppresses dendrite growth and enhances energy density, while tellurium forming a robust SEI facilitates Li+‐ion flow.
Akhil Shenoy, Arumugam Manthiram
wiley   +1 more source

Escala para avaliar a qualidade da mediação docente em ambiente universitário: adaptação cultural e evidências de validade

open access: yesPerspectiva, 2022
A validação da Escala da Qualidade da Mediação Docente instrumento realizou-se com 531 universitários de 12 cursos de graduação, sendo a maioria do gênero feminino, com idade média 22,5 anos (dp = 3,6 anos).
Wagner Bandeira Andriola
doaj   +1 more source

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