Results 51 to 60 of about 98,299 (214)

Delamination of Layered Zeolite Precursors under Mild Conditions: Synthesis of UCB-1 via Fluoride/Chloride Anion-Promoted Exfoliation [PDF]

open access: yes, 2011
New material UCB-1 is synthesized via the delamination of zeolite precursor MCM-22 (P) at pH 9 using an aqueous solution of cetyltrimethylammonium bromide, tetrabutylammonium fluoride, and tetrabutylammonium chloride at 353 K. Characterization by powder
Ha, Jeong-Myeong   +6 more
core   +2 more sources

Ashly Cabas, PhD, M.ASCE [PDF]

open access: yesGEOSTRATA Magazine, 2021
Stacey Kulesza, Melissa Beauregard
openaire   +1 more source

Suitability of Ground‐Motion Models for Seismic Hazard Assessments in Puerto Rico and the US Virgin Islands

open access: yesEarthquake Spectra, Volume 42, Issue 2, May 2026.
We perform linear mixed‐effects analyses with a ground‐motion dataset to evaluate how well ground‐motion models (GMMs) fit active crustal, subduction interface, and subduction intraslab earthquakes in Puerto Rico and the US Virgin Islands. Most of the GMMs reproduce the spatial variation in peak ground motions with earthquake magnitude and rupture ...
Brad T. Aagaard   +2 more
wiley   +1 more source

Degenerative Elderly Acute Lumbar Symptoms

open access: yesGlobal Spine Journal, 2015
Introduction A total of 10 patients with a chronic degenerative spinal stenosis, showed acute signs of compressive radicular compromise. Surgical treatment was deemed necessary for adequate management of acute segmental pain.
Daniel Oscar Ricciardi   +3 more
doaj   +1 more source

OpenAmp: An Open‐Source Site Amplification Database to Unlock the Potential of Machine Learning

open access: yesEarthquake Spectra, Volume 42, Issue 2, May 2026.
OpenAmp is an open‐source, consistently curated, high‐quality database of earthquake site amplification functions derived from instrumental recordings, accompanied by a comprehensive suite of site metadata, for 1,742 K‐NET and KiK‐net observation sites in Japan.
Chuanbin Zhu   +6 more
wiley   +1 more source

2025 U.S. Geological Survey National Seismic Hazard Model for Puerto Rico and the U.S. Virgin Islands: Overview of Model and Hazard Results

open access: yesEarthquake Spectra, Volume 42, Issue 2, May 2026.
The U.S. Geological Survey recently updated the National Seismic Hazard Model (NSHM) for Puerto Rico and the U.S. Virgin Islands (PRVI). The first version of the PRVI NSHM was released in 2003, and therefore this 2025 update includes over 20 years of new geologic, geophysical, and engineering data, methods, and models.
Allison M. Shumway   +21 more
wiley   +1 more source

Rehabilitación de la deglución de la saliva en un paciente con cánula de traqueostomía

open access: yesArgentinian Journal of Respiratory and Physical Therapy, 2022
Introducción: El 94% de los pacientes con accidente cerebro vascular (ACV) tienen disfagia. Nuestro objetivo fue observar el abordaje interdisciplinario en el tratamiento del manejo de la saliva.
Joaquín Carnero Echegaray   +6 more
doaj  

Social and economic consequences of HIV and AIDS on children: case study of a high-density community in Harare, Zimbabwe

open access: yesSAHARA-J, 2010
We present results from a household-based survey that was conducted in Mabvuku, a high-density community in Zimbabwe. The objective of the study was to improve understanding of social and economic consequences of HIV and AIDS on children.
Joshua Kembo
doaj   +1 more source

The War of the Pacific and Chilean public revenues: Reallocation of the tax burden and institutional change

open access: yesThe Economic History Review, Volume 79, Issue 2, Page 575-599, May 2026.
Abstract A substantial body of literature has considered warfare a fundamental driver of fiscal capacity. We argue that the nature of the tax base available to governments can either foster or constrain the ability and incentives of central elites to impose their legitimacy once the war is over.
Oriol Sabaté, José Peres‐Cajías
wiley   +1 more source

Engineering Crosslinker‐Free Sericin–Gelatin Hydrogels With Tunable Rheology for 3D Printing Applications

open access: yesJournal of Polymer Science, Volume 64, Issue 8, Page 1671-1680, 15 April 2026.
Gelatin derived from porcine tissue and sericin extracted from Bombyx mori cocoons are combined to form crosslinker‐free hydrogels with tunable composition, enabling extrusion‐based 3D printing and biocompatible constructs for biomedical applications. ABSTRACT Hydrogels can be processed by 3D printing to manufacture tailor made structures, broadening ...
André S. Macedo   +7 more
wiley   +1 more source

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