Results 111 to 120 of about 24,126 (306)
IDEAL: a Vector-Raster Hybrid Model for Efficient Spatial Queries over Complex Polygons. [PDF]
IEEE Int Conf Mob Data Manag, 2021 Teng D, Baig F, Sun Q, Kong J, Wang F.
europepmc +1 more source
Spatial Queries in the Presence of Obstacles
, 2004 Despite the existence of obstacles in many database applications, traditional spatial query processing utilizes the Euclidean distance metric assuming that points in space are directly reachable. In this paper, we study spatial queries in the presence of obstacles, where the obstructed distance between two points is defined as the length of the ...
Jun Zhang 0005 +3 more
openaire +3 more sources
From tumor‐centric to ecosystem‐based hypotheses in brain tumor research and care
Molecular Oncology, EarlyView.Primary brain tumors, whether in adults or children, present a major challenge because of their dramatic prognosis and the ongoing lack of efficient therapeutic approaches. In recent years, a shift has occurred from tumor‐centric concepts to a more holistic view of these tumors as dynamic ecosystems.
Julie Gavard +8 more
wiley +1 more source
Usability testing for improving interactive geovisualization techniques [PDF]
, 2002 Usability describes a product’s fitness for use according to a set of predefined criteria. Whatever the aim of the product, it should facilitate users’ tasks or enhance their performance by providing appropriate analysis tools.
Tobon, Caroline
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Location-Based Aggregate Queries for Heterogeneous Neighboring Objects
IEEE Access, 2017 Currently, most of the processing techniques for the conventional location-based queries focus only on a single type of objects. However, in real-life applications, the user may be interested in obtaining information about different types of objects, in ...
Yuan-Ko Huang
doaj +1 more source
Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae
FEBS Open Bio, EarlyView.Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj +3 more
wiley +1 more source
FEBS Open Bio, EarlyView.This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill +4 more
wiley +1 more source
Efficient Indexing Method for Massive 3D Geological Block Models Based on Inverted-B＋ Tree [PDF]
Jisuanji kexueThe prevalence of zero or null values in three-dimensional geological block models raises maintenance costs and efficiency issues due to frequent splitting and adjustment of the B＋tree-based attribute index structure.An indexing method based on Inverted ...
CHEN Genshen, LIU Gang, DONG Yang, FAN Wenyao, YI Qiang, JIANG Zixin
doaj +1 more source
FEBS Open Bio, EarlyView.14‐day casting‐induced immobilization reduced gastrocnemius muscle mass and increased non‐heme iron and ferritin heavy chain levels. Despite iron accumulation, transferrin receptor 1 and iron regulatory protein 2 were paradoxically upregulated. Lipid peroxidation was elevated without compensatory antioxidant responses.
Haruka Yokogawa +2 more
wiley +1 more source
Spatial queries on a hierarchical terrain model [PDF]
, 1994 In this paper we consider the problem of defining and answering spatial queries on hierarchical terrain models that provide a multiresolution representation.
Marzano P. +3 more
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