Results 91 to 100 of about 150,595 (266)

Procedural Outcome of Modern Percutaneous Coronary Intervention in Proximal Chronic Total Occlusions

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Long‐term outcome in patients with chronic total occlusions (CTO) depends on the target vessel and proximity of the lesion. Aims To investigate of the target vessel was associated with procedural efficacy and safety in patients with proximal CTO lesions.
Emil N. Holck   +21 more
wiley   +1 more source

Arene Incorporation and Ring Expansion in the Thermal Decomposition of a Divanadium(III) Complex With Four Bridging Methyl Groups

open access: yesChemistry – A European Journal, EarlyView.
Thermolysis of [{VCp*(µ‐CH3)2}2] (Cp* = η5‐C5Me5) in hexane leads to a tetranuclear cube‐type methylidene complex [{VCp*(µ3‐CH2)}4], while in benzenic solvents C6H5R produces the formal insertion of a CH fragment into the six‐membered aromatic ring of a solvent molecule to give trovacene derivatives with η7‐cycloheptatrienyl ligands [VCp*(η7‐C7H6R ...
Adrián Calvo‐Molina   +5 more
wiley   +1 more source

Development of an Optimized Induction Melting System for Fabricating Paraffin Fuel Grains for Hybrid Rocket Propulsion

open access: yesJournal of Aerospace Technology and Management
This work reports the development of an induction melting system for producing paraffin-based fuel units for hybrid rockets. The system is based in oscillating low-frequency magnetic field to generate heat within the material, enabling a precise ...
José Refugio Martínez   +8 more
doaj  

Induced‐Fit Recognition by a Calixarene–Pyrene Conjugate for Single‐ and Dual‐Wavelength Fluorescence Sensing in Water

open access: yesChemistry – A European Journal, EarlyView.
A sulfonatocalix[4]arene–pyrene conjugate functions as a fluorescence chemosensor for the optical detection of biorelevant analytes in water. Its photoinduced electron transfer (PET) response is triggered by an induced‐fit recognition mechanism. Noncovalent assembly with an additional dye affords dual‐color ratiometric signaling via competitive PET ...
Joana N. Martins   +4 more
wiley   +1 more source

Optimizing the spatial approximation tree from the root

open access: yesJournal of Computer Science and Technology, 2008
Many computational applications need to look for information in a database. Nowadays, the predominance of nonconventional databases makes the similarity search (i.e., searching elements of the database that are "similar" to a given query) becomes a ...
Alejandro J. Gómez   +2 more
doaj  

Serpentine Soils Shape Plant Traits and Herbivory

open access: yes
The Bulletin of the Ecological Society of America, EarlyView.
Xoaquín Moreira   +12 more
wiley   +1 more source

In‐situ asphaltene capture with iron oxide nanoparticles in steam‐assisted gravity drainage (SAGD) for improved recovery and partial upgrading of bitumen

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Key improvements obtained by incorporating nanoparticles into a lab‐scale SAGD process configuration. The bar plots show enhanced oil recovery, reduced viscosity, and increased asphaltene adsorption in nanoparticle‐assisted scenarios compared with conventional SAGD.
Luis Prada   +6 more
wiley   +1 more source

Metabolómica como nueva herramienta para el diagnóstico oportuno en enfermedades no transmisibles

open access: yesRevista de Salud Ambiental, 2019
En los últimos años, el empleo de las ciencias “ómicas” en la optimización del diagnóstico temprano y no invasivo de diferentes tipos de enfermedades, ha cobrado gran importancia, principalmente en enfermedades crónico-degenerativas; por otro lado,
Karen Beatriz Méndez-Rodríguez   +5 more
doaj  

Nuestra Comunidad: The Role of Latin American Networks in Supporting Ecologists Throughout Their Careers

open access: yes
The Bulletin of the Ecological Society of America, EarlyView.
Shersingh Joseph Tumber‐Dávila   +5 more
wiley   +1 more source

Bayesian inverse ensemble forecasting for COVID‐19

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Variations in strains of COVID‐19 have a significant impact on the rate of surges and on the accuracy of forecasts of the epidemic dynamics. The primary goal for this article is to quantify the effects of varying strains of COVID‐19 on ensemble forecasts of individual “surges.” By modelling the disease dynamics with an SIR model, we solve the ...
Kimberly Kroetch, Don Estep
wiley   +1 more source

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