Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 20 for “"topographic map"”.
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Theoretical investigations into principles of topographic map formation and applications
Topographic maps are ubiquitous brain structures that are fundamental to sensory and higher order systems and are composed of connections between two regions obeying the relationship: physically neighbouring cells in a pre-synaptic region connect to physically neighbouring cells in the …
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Identification and functional characterization of two patterning genes, Zic4 and Ten_m3, in topographic map formation of the visual pathway
… development is its organization into retinotopic maps. The developmental process by which these maps form involves a transition from early patterning cues to arrays of axonal guidance factors allowing the relative order of retinotopic axons to be preserved. Mechanisms linking patterning molecules …
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Caracterização geomorfológica e tectônica da folha Rio Mamuaba 1:25.000.
… neotectonic’s evidences in the area covered of topographic map from Mamuaba river 1:25.000, through morphotectonic and morphometric analysis applied to segments of drainage network in the area covered by the map. The topographic map investigated is situated on the eastern edge of the state of …
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Axon guidance in the zebrafish visual system: Analysis of Esrom Mutant
… system esrom is necessary for the formation of topographic map along the A-P and D-V axis, correct innervation of the pretectal targets and axon bundling in the optic tract. The gene function is required in the eye for retinal ganglion cell (RGC) targeting. Using positional cloning esrom was …
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Corporeal routes: climbing towards culture
… and explained through the use of the cognitive map hypothesis, in which the metaphor of the topographic map is used to construct an explanation of the way in which knowledge about space is stored and used. I argue that the topographical metaphor confuses the map with the territory and is …
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Drapers Meadows, a community designed and landscaped for living
… and data taken in this survey was used to make a topographic map which served as a base map for accurately projecting subsequent drawings. A general consideration of the environment and physical condition of the site along with a discussion of its historical significance, and a review of the …
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Precise Temporal Processing in the Gerbil Auditory Brainstem
… of variable length (“delay lines”), aligned in a topographic map of azimuthal auditory space. Convincing evidence for the existence of such a map in the mammalian ITD detector, the medial superior olive (MSO) is, however, lacking. Equally undetermined is the role of a temporally glycinergic …
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Subsurface Charge Accumulation imaging of the quantum Hall liquid
… of single electrons inside the 2DES we produce a topographic map of the random potential inside the integer quantum Hall liquid.
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The role of fast-spiking interneurons in cortical map plasticity
Rodents have a topographic map in primary somatosensory cortex of the contralateral facial whiskers. A brief period of whisker trimming causes the representation of the nontrimmed whiskers (spared) to expand into the cortex that has lost its principal sensory input (deprived). It has been …
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A regional study of landslide hazards and related features in the Upper Indus River Basin, northern Pakistan
… The techniques honed for this regional landslide mapping study began with compiling a stitched shaded topographic map of the Upper Indus River watershed; using remotely-sensed topographic maps from Russia combined with ASTER DEM 30m resolution data. Topographic recognition keys were then employed …
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Retracing the 1910 Carruthers Royal Geographical Society Expedition to the Turgen Mountains of Mongolia – Reconstruction of a Century of Glacial Change
… survey of the range and produced a detailed topographic map. They also documented the extent of the glaciers with photographs. This modern study consisted of three phases. The first step was to procure the historical documents from the RGS in London, including copies of the photos, journal …
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Retracing the 1910 Carruthers Royal Geographical Society Expedition to the Turgen Mountains of Mongolia – Reconstruction of a Century of Glacial Change
… survey of the range and produced a detailed topographic map. They also documented the extent of the glaciers with photographs. This modern study consisted of three phases. The first step was to procure the historical documents from the RGS in London, including copies of the photos, journal …
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Positional accuracy in a natural resource database: comparison of a single-photo resection versus affine registration
… States Geological Survey (USGS) 1:24,000 scale topographic maps. Positional accuracy was determined as the Euclidian distance between the digitized coordinate and the reference ground coordinate collected with global positioning systems (GPS). Area accuracy was the acreage difference between the …
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On Hardware Implementation of Discrete-Time Cellular Neural Networks
… discrimination) that takes an element of a topographic map and then interacts with all cells within a specified sphere of interest through direct connections. Due to their intrinsic parallel computing power, CNNs have attracted the attention of a wide variety of scientists in, e.g., the …
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Enhancement of digital elevation models using tree-based ensemble machine learning algorithms
Geospatial practitioners and national mapping agencies (NMAs) in Africa are constrained to rely on open-access remote sensing datasets, even as they struggle to meet up with best practices on spatial data infrastructure and topographic map revision. Thus, global digital elevation models (DEMs) have …
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Investigating recharge rates in Table Mountain springs using oxygen and hydrogen isotopes
… of potential recharge estimated from the topographic map is as follows: Albion spring 286 m, Newlands spring 359 m, Main Spring 518 m and for the De Waal spring 335 m. There is a strong negative correlation between δD and average altitude (r = -0.90) and for δ¹⁸O and average altitude (r = …
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Applications of Interactive Topographic Maps: Tangibility with Improved Spatial Awareness and Readability
Traditional flat topographic maps are difficult to understand due to the distortion and compromise of the 3-dimensional (3D) spatial representation when it is folded into lower-dimension media (e.g. 2D). During the process, the x-y coordinate of a location can be captured but its physical elevation …
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Optimización de la metodología para la definición, actualización, mantenimiento y aprovechamiento de las líneas límite jurisdiccionales
… de incorporar esa información a la edición del Mapa Topográfico Nacional 1:50.000. Cuando se efectuaron esas mediciones los medios disponibles utilizados, brújula y estadía vertical, ofrecían la precisión suficiente y necesaria para el fin previsto. La mayor parte de la sociedad española en ese …
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Characterization of anisotropy in organic-rich shales: shear and tensile failure, wave velocity, matrix and fracture permeability
… was numerically created using the surface topographic map by laser profilometry measurements. The numerical simulations of fluid flow show that fracture permeability decrease as a result of roughness and the impact of roughness on fracture permeability is higher as fracture aperture …
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Modeling Cognition by Pruning and Topography-Learning in Deep Neural Networks
… and (ii) enforcing brain-like correlations in topographic networks, to assess their capabilities of modeling high-level visual cortex, and to understand how these correlations impact the network's performance and representations. Across both parts, the common aim is to test whether models can …