Results 171 to 180 of about 100,720 (284)

Comparative Analysis of the Incidence, Prevalence, and Survival of 8 Types of Parkinsonism in a Population‐Based Study with 367 Million Person Years of Observation over 21 Years

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background Findings are contradictory regarding changes in the incidence and prevalence of Parkinson's disease (PD) over time; data for other parkinsonian disorders are rare. Objectives To analyze temporal trends in the incidence and prevalence of eight parkinsonisms (PD, MSA, PSP, CBS, DLB, vascular parkinsonism, drug‐induced parkinsonism ...
Sacha E. Gandhi   +7 more
wiley   +1 more source

Comprehensive 4D Parallel Transmission Spatial‐Spectral Pulse Design for Slab‐Selective Uniform Water‐Selective Excitation: Demonstration in the Human Brain at 7 Tesla

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To propose a new parallel transmission (pTx) spatial‐spectral (SPSP) pulse design for achieving slab‐selective uniform water‐selective excitation without unwanted out‐of‐slab fat excitation when using bipolar slab‐selective gradients to maintain a sharp slab profile.
Xin Shao   +5 more
wiley   +1 more source

Frugivory‐mediated trophic cascades: how apex predators can shape the recruitment of a fleshy‐fruited tree

open access: yesOikos, EarlyView.
The recovery of large carnivores offers unique opportunities to study their cascading impacts on plant population dynamics. Medium‐sized carnivores, both prey and seed dispersers, are suppressed by apex predators, indirectly increasing seed‐eating rodent's populations and potentially altering plant establishment.
Tamara Burgos   +3 more
wiley   +1 more source

Colours of urban selection: carotenoid‐based signals reveal divergent urban/rural evolutionary trajectories in two closely related passerines

open access: yesOikos, EarlyView.
Urbanisation is a major driver of environmental change, reshaping ecological and evolutionary processes. Urban‐driven phenotypic differences are increasingly documented, but the underlying role of selection is still understudied. One pattern is the consistent reduction of carotenoid‐based plumage pigmentation in city birds.
Nicolas Bekka   +3 more
wiley   +1 more source

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