Results 101 to 110 of about 5,839,153 (344)

Basal Forebrain Volume and Concurrent Hallucinations and Mild Cognitive Impairment in Parkinson's Disease

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background Visual hallucinations (VH) and mild cognitive impairment (MCI) often co‐occur in Parkinson's Disease (PD). Each symptom in isolation is associated with cholinergic basal forebrain (BF) atrophy. However, it is unclear whether BF integrity relates to one symptom preferentially or to their co‐occurrence, and whether this relationship ...
Sabrina M. Adamo   +6 more
wiley   +1 more source

Subsurface Investigations of Cryo‐Hydrogeological Features in a High Arctic Catchment Under Transition

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT In this study, the internal structure and seasonal variations of cryo‐hydrogeological features were investigated in the Fuglebekken catchment, located near the Polish Polar Station Hornsund in Svalbard. Over a few years, rising air temperatures and intensified water circulation have significantly altered the distribution, extent, and state of ...
Wawrzyniak Tomasz   +3 more
wiley   +1 more source

Land data assimilation of satellite‐based surface soil moisture: Impact on atmospheric simulations over the contiguous United States

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Soil Moisture Active Passive soil moisture retrievals are assimilated into a land surface model and the resulting land reanalysis product is used to initialise the land component of coupled land‐atmosphere experiments. We show that the local impact of land data assimilation on the atmosphere is influenced by two factors: the magnitude by which it ...
Zdenko Heyvaert   +6 more
wiley   +1 more source

Geodetic method in archaeology and exploration historical monuments [PDF]

open access: yesActa Montanistica Slovaca, 2006
The paper deals with the application of geodetic methods in archaeology and of historical monuments exploration to measuring of the archaeological site of the historical village church (Koscelek in the Nižná Myšľa village in the Košice-surrounding region)
Vladimír Sedlák
doaj  

ALB Evaluation for NOAA charting requirements [PDF]

open access: yes, 2013
The National Oceanic and Atmospheric Administration (NOAA) acquires hydrographic data around the coasts of the US and its territories using in-house surveys and contracting resources. Hydrographic data are primarily collected using sonar systems, while a
Imahori, Gretchen   +2 more
core   +1 more source

Mapping River Bed Topography in Whitewater Rapids Using Bathymetric LiDAR

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Bathymetric LiDAR captures river topography efficiently for clear and shallow water, but for mountain rivers, whitewater rapids still pose challenges. This study proposes a novel method to enable the extraction of bottom returns specifically in turbulent whitewater sections.
Jan Rhomberg‐Kauert   +5 more
wiley   +1 more source

Planiška letalnica z vidika geodezije : Planica Ski Jump – Geodetic Aspect [PDF]

open access: yesGeodetski Vestnik, 2004
The geometry of the Planica ski jump was established on the basis of geodetic measurements. The results of precise measurement were used for the reconstruction of the ski jump during 2003 and 2004.
Dušan Kogoj   +3 more
doaj  

Dynamic Strain Measurements Using Embedded Fiber Optic Sensors [PDF]

open access: yes, 2017
Geodetic monitoring of structures like bridges or dams, and natural objects like slopes, and the determination of deformations has reached a high level of maturity considering the instrumental as well as the analysis developments.
Isakova, M.L.   +2 more
core  

On the compatibility of single‐scan terrestrial LiDAR with digital photogrammetry and field inventory metrics of vegetation structure in forest and agroforestry landscapes

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
The single‐scan approach to terrestrial laser scanning (TLS) and the self‐terrain‐normalized form of drone‐based digital aerial photogrammetry (DAP) offer practical options for rapid assessment of the vegetation structure in tropical landscapes.
Magnus Onyiriagwu   +7 more
wiley   +1 more source

Geodetic surveying studies for civil engineering students at Tallinn University of Technology

open access: yesGeodesy and Cartography, 2012
Studies in the Tallinn University of Technology are based on a modular system, where geodetic surveying comprises a self-contained study module in the curricula of all civil engineering specialities.
Nelli Ustinova   +3 more
doaj   +1 more source

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