Results 111 to 120 of about 69,645 (263)

Prototyping an Innovative Ducted Fan System With Multi‐element Wings for the Electric Propulsion of Flying Devices

open access: yesMacromolecular Symposia, EarlyView.
ABSTRACT This paper presents theoretical aspects and experimental tests for the design and optimization of a novel ducted fan propulsion system, complemented by multi‐element wings inspired by Handley Page and the aerodynamic Channel Wing concept.
Adrian Niță   +4 more
wiley   +1 more source

Prognosis in Parkinson's Disease: An Individual Patient Data Meta‐Analysis of Six European Incidence Cohorts

open access: yesMovement Disorders, EarlyView.
Abstract Background An accurate understanding of prognosis in Parkinson's disease (PD) is important for patient information provision, personalized treatment, and clinical trial design, but most previous research has been biased towards younger, healthier patients.
Angus D. Macleod   +72 more
wiley   +1 more source

Visión actual del diagnóstico y manejo clínico restaurativo de lesiones por abfracción

open access: yesRevista Cubana de Medicina Militar
Introducción: La abfracción es un tipo de lesión caracterizada por la pérdida patológica de tejido dental asociada a cargas biomecánicas que provocan la flexión y degradación, por fatiga química del esmalte y la dentina, fuera del punto de carga del ...
Cristian Camilo Morales Lastre   +3 more
doaj  

Time‐Conditioned Zero‐Shot Self‐Supervised Reconstruction for Accelerated 3D Ultra‐Low‐Field MRI

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Ultra‐low‐field (ULF) MRI provides a cost‐effective, portable imaging option but has relatively low SNR and long acquisition times compared to standard clinical scans. This study presents a time‐conditioned zero‐shot self‐supervised learning image reconstruction framework (ULF‐ZS‐SSL) to accelerate 3D‐acquired single‐coil ULF MRI ...
Mart W. J. van Straten   +6 more
wiley   +1 more source

Cybianthus anthuriophyllus (Primulaceae), a new record for the flora of Colombia: distribution modeling and conservation assessment

open access: yesNordic Journal of Botany, EarlyView.
Cybianthus anthuriophyllus (Primulaceae) was previously known from eastern Ecuador and northern Peru. Here we document the first confirmed occurrences of this species in Colombia and develop a distribution model based on collections from the Andean–Amazonian foothills of Caquetá, Cauca, and Putumayo departments, in order to clarify its conservation ...
David Hoyos   +4 more
wiley   +1 more source

Drivers of metabolic density‐dependence: how resource availability and conspecific cues affect phytoplankton metabolism

open access: yesOikos, EarlyView.
Metabolism is density‐dependent from unicellular to multicellular organisms. Understanding what drives metabolic suppression is important to explain population growth given the link between metabolism and biomass production. In the simplest scenario, metabolic suppression is caused by a reduction in resource availability with increasing population ...
Ricardo Estevens   +2 more
wiley   +1 more source

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