Results 31 to 40 of about 1,656 (147)

Building a Continental‐Scale Geodetic Network: The Plate Boundary Observatory (PBO)

open access: yesPerspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract The Plate Boundary Observatory (PBO) transformed the use of geodesy in North America to study crustal deformation and plate boundary processes by establishing a continental‐scale, standardized, open‐access geodetic network. Built and operated by UNAVCO between 2003 and 2018 as part of the National Science Foundation (NSF)‐funded EarthScope ...
Emily E. Zawacki   +5 more
wiley   +1 more source

Orientación de láminas delgadas de (Pb, Ca)TiO3

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 1999
Calcium modified PbTiO3 thin films have been prepared on platinized Si, MgO and SrTiO3 substrates. The films were deposited from a sol-gel solution with a concentration of 0.3 M and with a 10% excess of PbO.
Mendiola, J.   +2 more
doaj  

A genetic algorithm simheuristic for solving the stochastic project portfolio selection problem with portfolio reliability constraints

open access: yesInternational Transactions in Operational Research, Volume 33, Issue 6, Page 4039-4071, November 2026.
Abstract In response to the increasing complexity of modern products, dynamic markets, and intensified competition, project‐based organizations are actively seeking methodologies to efficiently manage their expanding project portfolios. This paper analyzes the project portfolio selection problem in uncertain environments. Despite recent advances in the
Miguel Saiz   +3 more
wiley   +1 more source

A New Paradigm for Understanding the Rheology and Processability of Poly(p‐Phenylene Terephthalamide) Liquid‐Crystalline Solutions

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 34, September 10, 2026.
Kevlar is traditionally modeled as a rigid‐rod polymer, yet rheological behavior deviates from this assumption. The review introduces a novel “twist‐tie” entanglement theory for aramid polymer chains in the nematic liquid crystal state, providing a molecular explanation for deviations from rigid‐rod models. Understanding twist‐tie entanglement dynamics
Emma Egli   +3 more
wiley   +1 more source

Comparative Effectiveness Analysis of Phase 3 Clinical Trials in Moderately to Severely Active Inflammatory Bowel Disease Reveals Increased Harm From Placebo and Challenges Equipoise

open access: yesJCC Plus, Volume 1, Issue 5, September 2026.
Across 47 Phase 3 trials in Crohn's disease and ulcerative colitis, placebo exposure was associated with measurable harm. Disease exacerbation events showed the greatest excess risk, with one additional exacerbation occurring for every 8–13 patients assigned to placebo rather than active therapy.
Joëlle St‐Pierre   +5 more
wiley   +1 more source

An open‐label, long‐term extension, multicenter study to evaluate the safety and efficacy of venlafaxine extended release in Japanese outpatients with generalized anxiety disorder

open access: yesPsychiatry and Clinical Neurosciences Reports, Volume 5, Issue 3, September 2026.
Abstract Aim This study evaluated the long‐term safety and efficacy of venlafaxine extended release (ER), which has been administered for 52 weeks in Japanese adult outpatients with generalized anxiety disorder (GAD). Methods In this open‐label, long‐term extension, multicenter study, 135 Japanese patients with GAD were enrolled after completing 10 ...
Tempei Otsubo   +9 more
wiley   +1 more source

Synergistic Chemodynamic–Photothermal Antibacterial Activity of a Nanozyme Derived From Processed Pyritum

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Pyritum can eliminate blood stasis and promote the healing of muscles and bones, which has been used as a traditional mineral medicine in China for thousands of years. However, the mechanisms of action and processing methods of Pyritum were not illustrated.
Mingxia Li   +8 more
wiley   +1 more source

One Stone Two Birds: Sustainable Perovskite Solar Cells Obtained by Using Water‐Based Recycled PbI2 and Guanidinium Thiocyanate Post‐Treatment

open access: yesChemSusChem, Volume 19, Issue 15, 14 August 2026.
A simple water‐based recycling and recrystallization method enables the recovery of high‐purity PbI2 from spent perovskite solar cells. With guanidinium thiocyanate treatment to restore film quality, PSCs fabricated using the recycled PbI2 achieve a PCE of 17.25%, comparable to those made from commercial high‐purity PbI2. This scalable, cost‐effective,
Pivini Gunasekara   +6 more
wiley   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, Volume 28, Issue 15, 5 August 2026.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Sub‐Diffraction Nanolithography of Halide Perovskite via Reversible All‐Optical Crystallization–Decomposition

open access: yesAdvanced Materials, Volume 38, Issue 44, 7 August 2026.
A reversible, all‐optical modulation strategy enables resist‐free, sub‐diffraction nanolithography of halide perovskite films. Leveraging 800 nm fs laser‐induced crystallization and 365 nm laser driven decomposition, reconfigurable patterning achieves feature sizes down to 93.5 nm. This chemistry‐free approach offers dynamic control over optoelectronic
Zhengfen Wan   +4 more
wiley   +1 more source

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