Results 31 to 40 of about 1,502,675 (133)

Progressive Supranuclear Palsy Diagnosed After a Severe Fall Trauma in a Patient Who Experienced Episodes of Easy Falling. [PDF]

open access: yesCureus
Progressive supranuclear palsy (PSP) is characterized by parkinsonism, downward gaze disorder, and a tendency to fall due to degeneration of the basal ganglia, the brain stem, and the cerebellum.
Kaneko Y, Furui E, Isono H.
europepmc   +2 more sources

Clinical value of MRI and acute madopar responsiveness test in diagnosing progressive supranuclear palsy

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2013
Objective To investigate the MRI abnormalities and acute madopar responsiveness test in diagnosing progressive supranuclear palsy (PSP) and Parkinson's disease (PD).
Xiao-hong LI   +4 more
doaj   +2 more sources

Hummingbird sign (midbrain)

open access: hybrid, 2011
Craig Hacking   +2 more
openalex   +2 more sources

SPECTRUM OF MAGNETIC RESONANCE IMAGING IN MOVEMENT DISORDER

open access: yesStudent's Journal of Health Research Africa, 2023
Background Movement disorders share an overlapping manifestation in many cases making a clinical diagnosis alone challenging. There are no standard objective tests available for the diagnosis currently.
Patel Dhruv Pankajbhai   +3 more
doaj   +1 more source

In Situ Liquid‐Cell Transmission Electron Microscopy Insights Into Lithium‐Ion Battery Materials Degradation: Challenges and Emerging Solutions

open access: yesAdvanced Science, EarlyView.
Lithium‐ion battery degradation arises from complex, localized processes during operation, limiting long‐term performance. In situ electrochemical liquid cell TEM provides unique access to these mechanisms. This review summarizes degradation phenomena revealed by liquid cell TEM, traces the evolution of the three main cell designs, compares their ...
Walid Dachraoui, Rolf Erni
wiley   +1 more source

Phylogenomics, ecomorphological evolution, and historical biogeography in Deuterocohnia (Bromeliaceae: Pitcairnioideae)

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Species of Deuterocohnia (17 spp.) show extraordinary variation in elevation (0–3900 m a.s.l.) and growth forms, and many have narrow geographic distributions in the west‐central Andes and the Peru‐Chile coast. Previous research using few plastid and nuclear loci failed to produce well‐resolved or supported phylogenies.
Bing Li   +5 more
wiley   +1 more source

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

open access: yesBiological Reviews, EarlyView.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz   +6 more
wiley   +1 more source

Polyphenol rich extract from Sesbania grandiflora (L.) Pers. bark reduces rheumatism by mediating the expression of NF kappa B in rats

open access: yesIndian journal of experimental biology, 2020
Sesbania grandiflora (L . ) Pers. (Fabaceae) commonly called Agati or Vegetable Hummingbird, is autochthonal from Malaysia to North Australia; plant is cultivated in several parts of India.
S. Arora, P. Itankar
semanticscholar   +1 more source

Structural stability of plant–pollinator interactions despite seasonal abundance of long‐tongued hawkmoths

open access: yesOikos, EarlyView.
Seasonal environmental cycles affect plant–pollinator interactions by altering plant phenology. Periods of low resource availability can filter pollinators and reduce the complexity of interaction networks, but the extent to which the functional morphology of pollinators influences such filtering remains unclear.
Ugo M. Diniz   +3 more
wiley   +1 more source

Gradual pollen release in a buzz‐pollinated plant: Investigating pollen presentation theory under bee visitation

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The rate at which flowers dispense pollen across successive pollinator visits is a key functional trait influencing male reproductive success. Pollen presentation theory (PPT) predicts that when pollinators are abundant and actively groom their bodies to collect pollen,
Mario Vallejo‐Marín, Anna Lundgren
wiley   +1 more source

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