Results 91 to 100 of about 20,734 (307)

Analysis of DEM combination methods using high resolution optical stereo imagery and interferometric SAR data

open access: yes, 2009
Digital elevation models (DEM) from satellite data are generated mainly from two types of datasets using completely different methods: photogrammetry for optical stereo images (e.g.
Hoja, Danielle, d'Angelo, Pablo
core  

Remote Assessment of Ataxia Severity in SCA3 Across Multiple Centers and Time Points

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinocerebellar ataxia type 3 (SCA3) is a genetically defined ataxia. The Scale for Assessment and Rating of Ataxia (SARA) is a clinician‐reported outcome that measures ataxia severity at a single time point. In its standard application, SARA fails to capture short‐term fluctuations, limiting its sensitivity in trials.
Marcus Grobe‐Einsler   +20 more
wiley   +1 more source

Refinement of urban digital elevation models from very high resolution stereo satellite images

open access: yes, 2009
Digital elevation models (DEM) of high resolution and high quality are required for many applications like urban modeling, readiness for catastrophes or disaster assessment.
Reinartz, Peter, Krauß, Thomas
core  

Japan Digital Elevation Model [DEM]

open access: yes, 2015
For the Regional Systems Analysis of Japan, the GTOP0 30 arc second resolution data tiles were projected into Lambert Comformal Conic projection using Clarke 1866 datum, with units in meters.
Henderson, Mark   +2 more
core   +1 more source

Producing Digital Models of Elevations (DEMs) using Surfer 16

open access: yesIraqi Journal of Science
Digital Models of Elevations (DEMs) Using Surfer 16, which are interpolated to create three-dimensional controls for the entire terrain, are typically used in visualization of geospatial entities. The interpolation method used determines how accurate the resulting terrain model will be, hence it is necessary to compare the effectiveness of various ...
Amal Mahdi Ali   +3 more
openaire   +1 more source

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito   +14 more
wiley   +1 more source

Bayesian Inference of Elevation to Reduce Large Interpolation Errors in 2-d Road Features Draped Over Digital Elevation Models

open access: yesIEEE Access
The usual approach for adding elevation data to two dimensional (2-d) vector features in a Geographic Information System (GIS) is to infer heights from a Digital Elevation Model (DEM), either through traditional (naïve) interpolation, Kriging, or ...
Crispin H. V. Cooper
doaj   +1 more source

CX3CL1 in Early Detection of Alzheimer's Disease: Plasma Dynamics Across Age and Disease Stages

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Backgrounds Alzheimer's disease (AD) is characterized by amyloid‐beta plaques, tau tangles, and neuroinflammation. C‐X3‐C motif chemokine ligand 1 (CX3CL1, also known as fractalkine), a neuroimmune chemokine implicated in AD pathogenesis, shows inconsistent alterations in plasma/serum across studies.
Ling Wang   +6 more
wiley   +1 more source

POSSIBILITY OF USING DIGITAL TERAIN MODELS FOR LAND MANAGEMENT IN THE REGION

open access: yesInterCarto. InterGIS, 2014
On the example of the Mordovia Republic examined the possibility of using GIS technology, geoinformational and cartographic digital terain models (DTM, digital elevation model, DEM) for land management in the region in order to rationalize nature use.
K. S. Teslenok, S. A. Teslenok
doaj   +1 more source

Use of plan curvature variations for the identification of ridges and channels on DEM

open access: yes, 2006
This paper proposes novel improvements in the traditional algorithms for the identification of ridge and channel (also called ravines) topographic features on raster digital elevation models (DEMs). The overall methodology consists of two main steps: (1)
Rana, S.
core  

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