Results 51 to 60 of about 1,187,505 (316)

Brainstem and Cerebellar Volume Loss and Associated Clinical Features in Progressive Supranuclear Palsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Progressive Supranuclear Palsy (PSP) is a neurodegenerative ‘tauopathy’ with predominating pathology in the basal ganglia and midbrain. Caudal tau spread frequently implicates the cerebellum; however, the pattern of atrophy remains equivocal.
Chloe Spiegel   +8 more
wiley   +1 more source

Observations from C-Band SAR Fully Polarimetric Parameters of Mobile Sea Ice Based on Radar Scattering Mechanisms to Support Operational Sea Ice Monitoring

open access: yesCanadian Journal of Remote Sensing, 2022
Fully polarimetric (FP) SAR systems offer parameters that describe and quantify the scattering mechanisms from the surface cover. These are usually derived from decomposition of matrices derived from the original scattering matrix from observations at ...
Mohammed Shokr   +4 more
doaj   +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

Assessment of Precipitation and Associated Extremes in CORDEX Simulations Over Côte d’Ivoire

open access: yesAdvances in Meteorology
This study assesses the performance of the 14-member multi-model ensemble (MME) from the COordinated Regional climate Downscaling EXperiment (CORDEX)-Africa initiative in reproducing precipitation and associated extremes indices over Côte d’Ivoire during
Assi Louis Martial Yapo   +7 more
doaj   +1 more source

Radar-equivalent snowpack: reducing the number of snow layers while retaining their microwave properties and bulk snow mass [PDF]

open access: yesThe Cryosphere
Snow water equivalent (SWE) retrieval from Ku-band radar measurements is possible with complex retrieval algorithms involving prior information on the snowpack microstructure and a microwave radiative transfer model to link backscatter measurements to ...
J. Meloche   +4 more
doaj   +1 more source

Frequency and distribution of winter melt events from passive microwave satellite data in the pan-Arctic, 1988–2013 [PDF]

open access: yesThe Cryosphere, 2016
This study presents an algorithm for detecting winter melt events in seasonal snow cover based on temporal variations in the brightness temperature difference between 19 and 37 GHz from satellite passive microwave measurements.
L. Wang, P. Toose, R. Brown, C. Derksen
doaj   +1 more source

Thirsty country: climate change and drought in Australia [PDF]

open access: yes, 2015
This report argues that climate change is likely making drought worse in the southeast and southwest of Australia, which are some of our most populous regions. Introduction Drought has deeply affected Australia throughout its history.
Climate Council
core  

A Depolarizing Leak in Sodium Bicarbonate Cotransporter NBCe1 Causes Brain Edema

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives SLC4A4 encodes electrogenic sodium bicarbonate cotransporter NBCe1, prominently expressed in kidney and brain. Recessive loss‐of‐function variants in SLC4A4 cause proximal renal tubular acidosis, no brain edema. In the brain, NBCe1 is expressed by astrocytes, where it regulates pH and mediates astrocyte volume changes.
Quinty Bisseling   +16 more
wiley   +1 more source

Climate Change and Water

open access: yes, 2008
Observational records and climate projections provide abundant evidence that freshwater resources are vulnerable and have the potential to be strongly impacted by climate change, with wide-ranging consequences for human societies ...
Kundzewicz, Zbigniew   +2 more
core   +1 more source

Widespread production of plant growth-promoting hormones among marine bacteria and their impacts on the growth of a marine diatom

open access: yesMicrobiome
Background Reciprocal exchanges of metabolites between phytoplankton and bacteria influence the fitness of these microorganisms which ultimately shapes the productivity of marine ecosystems.
Abeeha Khalil   +7 more
doaj   +1 more source

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