Results 31 to 40 of about 609 (106)

Advancing biomarker development for chronic traumatic encephalopathy: Summary and recommendations from the 2025 Leon Thal Summit

open access: yesAlzheimer's &Dementia, Volume 22, Issue 5, May 2026.
Abstract The 2025 Leon Thal Summit convened an international panel of clinicians, neuroscientists, neuropathologists, and neuroimaging specialists to evaluate the current state of biomarker development for chronic traumatic encephalopathy (CTE) and to outline priorities for advancing translational research for this important area.
Charles Bernick   +24 more
wiley   +1 more source

Repurposed drug prioritization pipeline for a multi‐arm platform trial in clinical Alzheimer's disease

open access: yesAlzheimer's &Dementia, Volume 22, Issue 5, May 2026.
Abstract INTRODUCTION There is an urgent need to identify effective, safe, and affordable treatments for Alzheimer's disease (AD). Funded by the UK National Institute for Health and Care Research (NIHR), we developed a systematic drug prioritization pipeline to identify repurposed drug candidates for inclusion in a planned platform trial for clinical ...
Sabahat Iqbal   +22 more
wiley   +1 more source

Testing the Adaptive Significance of Personate Flowers in Penstemon (Plantaginaceae)

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
Floral diversity across plant lineages reflects evolutionary shifts in mating strategy and pollinator specificity. The genus Penstemon contains a handful of species that display personate flowers—a peculiar bee‐pollinated floral type characterized by an upward bulge in the ventral portion of the corolla tube that obstructs the floral opening.
Trinity H. Depatie, Carolyn A. Wessinger
wiley   +1 more source

Exploring Andean foothill connectivity: insights from population divergence in the white‐tipped sicklebill, Eutoxeres aquila

open access: yesJournal of Avian Biology, Volume 2026, Issue 3, May 2026.
The Northern Andes, acting both as barrier and corridor, exert strong influence in Neotropical biodiversity. Still, the diversification of foothill taxa inhabiting ecotonal zones between lowland rainforest and montane environments in this region remains poorly understood.
Laura Rosado‐ Llerena   +6 more
wiley   +1 more source

Foraging plasticity and physiological adaptations enable hummingbirds to subsist on dilute nectars

open access: yesFunctional Ecology, Volume 40, Issue 5, Page 1475-1490, May 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Hummingbirds frequently feed on small volumes (<30 μL) of sucrose‐rich nectars. Climate change is expected to affect both the abundance and the concentrations of accumulated nectar.
Rosalee L. Elting   +5 more
wiley   +1 more source

Flower color variation in Digitalis purpurea: Pollination and soil influences across native and introduced populations

open access: yesAmerican Journal of Botany, Volume 113, Issue 4, April 2026.
Abstract Premise Flower color, a key trait influencing plant–pollinator interactions, may be influenced by abiotic factors such as soil. We investigated association between pollinators, soil characteristics, and flower color variations in Digitalis purpurea across native populations in Sweden and introduced populations in Bolivia.
Sissi Lozada‐Gobilard   +6 more
wiley   +1 more source

Multi‐Centre Reproducibility of DTI and NODDI in White Matter Tracts Segmented Using TractFinder Across Three MRI Scanners of the Same Model

open access: yesHuman Brain Mapping, Volume 47, Issue 5, 1 April 2026.
ABSTRACT Quantitative imaging biomarkers (QIBs) are objective measures derived from quantitative imaging that can differentiate pathological changes from healthy biological processes. Diffusion MRI parameters derived from Diffusion Tensor Imaging (DTI) and Neurite Orientation Dispersion and Density Imaging (NODDI) could serve as potential QIBs for ...
Agnieszka Sierhej   +7 more
wiley   +1 more source

Authors to sign hummingbird book at Arboretum

open access: yes, 1991
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

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

open access: yesOikos, Volume 2026, Issue 4, April 2026.
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

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  

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