Results 111 to 120 of about 494,000 (315)

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher   +10 more
wiley   +1 more source

Managing spatial and temporal variability in irrigated agriculture through adaptive control

open access: yes, 2009
Spatial variability in crop production occurs as a result of spatial and temporal variations in soil structure and fertility; soil physical, chemical and hydraulic properties, irrigation applications, pests and diseases, plant genetics and local ...
McCarthy, Alison   +3 more
core  

Historical temporal trends in overwinter and spring snowpack for the Okanagan and Similkameen River watersheds in south-central British Columbia, Canada

open access: yes, 2011
Potential historical temporal trends in the overwinter and spring snowpack were investigated for the Canadian portions of the Okanagan and Similkameen Valleys in south-central British Columbia.
Sierra Rayne, Kaya Forest
core   +1 more source

Structure–Function Decoupling of the Sensorimotor and Default Mode Networks in Black Americans With MS

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Multiple sclerosis (MS) exhibits racially disparate rates of disease progression. Black people with MS (B‐PwMS) experience a more severe disease course than non‐Hispanic White people with MS (NHW‐PwMS). Here we investigated structural and functional connectivity as well as structure–function decoupling in the ...
Emilio Cipriano   +11 more
wiley   +1 more source

Climate controls on temporal variability of methane flux from a poor fen in southeastern New Hampshire: Measurement and modeling

open access: yes, 1994
Three scales of temporal variability were present in methane (CH4) flux data collected during a 2.5 year (mid-1990–1992) study at a small, poor fen in southeastern New Hampshire.
Patrick Crill   +3 more
core   +1 more source

Validity of a Wearable Digital Insole for Assessing Gait ON and OFF in Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Gait impairment is a distinctive symptom of Parkinson's disease that negatively impact mobility. We assessed the validity of wearable digital insoles against a validated reference gait analysis system for measuring select gait characteristics in patients with Parkinson's disease. Methods A comparative analysis between digital insoles
Deborah A. Hall   +16 more
wiley   +1 more source

Phytoplanktonic temporal variability in a coastal area of northwestern Baja California

open access: yesCiencias Marinas, 1993
A phytoplankton study was barried out in Bahía de Todos Santos from March 1986 to March 1987. Samples were taken monthly at three stations and at depths of 1, 10 and 20 m.
E Millán-Núñez, DH Loya-Salinas
doaj   +1 more source

Temporal and spatial variability in speakers with Parkinson's Disease and Friedreich's Ataxia

open access: yes, 2008
Speech variability in groups of speakers with Parkinson's disease (PD) and with Friedreich's ataxia was compared with healthy controls. Speakers repeated the same phrase 20 times at one of two rates (fast or habitual).
Lowit, Anja   +2 more
core  

Temporal and Spatial Patterns of the Interannual Variability of Stratospheric Ozone and Dynamics [PDF]

open access: yes, 2004
This dissertation is a collection of empirical and modeling studies focusing on the interannual variability (IAV) of stratospheric ozone and the dynamics associated with that variability. Empirical analyses of the IAV of total column ozone in the tropics
Camp, Charles David
core   +1 more source

Baseline Regional Cholinergic Denervation Predicts Cognitive Trajectories in Moderate Parkinson Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cognitive decline is a disabling and variable feature of Parkinson disease (PD). While cholinergic system degeneration is linked to cognitive impairments in PD, most prior research reported cross‐sectional associations. We aimed to fill this gap by investigating whether baseline regional cerebral vesicular acetylcholine transporter ...
Taylor Brown   +6 more
wiley   +1 more source

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