Results 31 to 40 of about 2,287,439 (234)
Hallucinogenic Persisting Perception Disorder: A Case Series and Review of the Literature
Frontiers in Neurology, 2022 BackgroundHallucinogen persisting perception disorder (HPPD) is characterized by the re-emergence of perceptual symptoms experienced during acute hallucinogen intoxication following drug cessation. The underlying pathophysiology is poorly understood.
Hannah Ford +8 more
doaj +1 more source
Intercomparison of snow density measurements: bias, precision, and vertical resolution [PDF]
, 2016 Density is a fundamental property of porous media such as snow. A wide range of snow properties and physical processes are linked to density, but few studies have addressed the uncertainty in snow density measurements.
C. Fierz +7 more
core +2 more sources
Visual Snow: A Case Series from Israel
Case Reports in Ophthalmology, 2020 Our aim was to examine the symptoms and clinical characteristics of visual snow in a group of 6 patients from a Department of Ophthalmology and a Department of Neurology. Visual snow is now recognized as a true physiological disorder.
Eran Berkowitz +4 more
doaj +1 more source
Imaging the Visual Network in the Migraine Spectrum
Frontiers in Neurology, 2019 The involvement of the visual network in migraine pathophysiology has been well-known for more than a century. Not only is the aura phenomenon linked to cortical alterations primarily localized in the visual cortex; but also migraine without aura has ...
Francesca Puledda +5 more
doaj +1 more source
Theia Snow collection: high-resolution operational snow cover maps from Sentinel-2 and Landsat-8 data [PDF]
Earth System Science Data, 2019 The Theia Snow collection routinely provides high-resolution maps of the snow-covered area from Sentinel-2 and Landsat-8 observations. The collection covers selected areas worldwide, including the main mountain regions in western Europe (e.g.
S. Gascoin +6 more
doaj +1 more source
Monitoring the snow leopard population in the Altai Mountains (Chikhachev Ridge, Siberia)
Acta Biologica Sibirica, 2023 The snow leopard population has been monitored on the Chikhacvhev Ridge for 10 years since 2011 using camera traps. In 2021, a male was recorded. We recorded several concurrent predatory species, like red fox, Pallas’s cat, wolverine, and brown bear, and
Maksim R. Parkhomenko +3 more
doaj +1 more source
SNOWMIP2: An evaluation of forest snow process simulation [PDF]
, 2009 The Northern Hemisphere has large areas that are forested and seasonally snow covered. Compared with open areas, forest canopies strongly influence interactions between the atmosphere and snow on the ground by sheltering the snow from wind and solar ...
Essery, Richard +19 more
core +1 more source
On the evolution of snow roughness during snow fall
, 2007 The deposition and attachment mechanism of settling snow crystals during snowfall dictates the very initial structure of ice within a natural snowpack.
Manes, C. +7 more
core +1 more source
BMC Ophthalmology, 2022 Background To present a case with Ebstein anomaly, a rare congenital heart disorder, with ophthalmological and neurophthalmological signs and symptoms. To date, retinal venous dilatation and visual snow syndrome have not been previously been published in
P. T. V. M. de Jong +2 more
doaj +1 more source
Micrometeorological processes driving snow ablation in an Alpine catchment [PDF]
, 2011 Mountain snow covers typically become patchy over the course of a melting season. The snow pattern during melt is mainly governed by the end of winter snow depth distribution and the local energy balance.
C. Manes +15 more
core +2 more sources