Results 21 to 30 of about 534 (212)

Big vector spatial data storage, indexing and query processing using the NoSQL Accumulo data store

open access: yesInternational Journal of Computer Engineering and Data Science, 2022
Recent advent of connected objects, omnipresence of social networks, success of the smartphone market, mobile telecommunications technology generalization, all these factors contribute to generating more and more spatial data with big data ...
ELhassane Nassif   +3 more
doaj   +4 more sources

INDEXING AND QUERY PROCESSING TECHNIQUES IN SPATIO-TEMPORAL DATA [PDF]

open access: yesICTACT Journal on Soft Computing, 2016
Indexing and query processing is an emerging research field in spatio - temporal data. Most of the real-time applications such as location based services, fleet management, traffic prediction and radio frequency identification and sensor networks are ...
A John, M Sugumaran, R S Rajesh
doaj  

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

Global instantaneous monitoring of reservoir water levels using ICESat-2 photon-counting LiDAR

open access: yesGIScience & Remote Sensing
High-resolution monitoring of global reservoir water levels is critical for hydrological modeling, climate adaptation, and integrated water resource management.
Xin Jiang   +4 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

3DB-ROC Data Structure Organization for Three-Dimensional Building Models

open access: yesIEEE Access
With the rapid development of technologies such as smart city, digital twin, and metaverse, the data volume of three-dimensional building models is experiencing explosive growth.
Jiangtao Lei   +5 more
doaj   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

open access: yesFEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai   +4 more
wiley   +1 more source

An extensible index for spatial databases [PDF]

open access: yesProceedings Thirteenth International Conference on Scientific and Statistical Database Management. SSDBM 2001, 2002
Emerging database applications require the use of new indexing structures beyond B-trees and R-trees. Examples are the k-D tree, the trie, the quadtree, and their variants. They are often proposed as supporting structures in data mining, GIS, and CAD/CAM applications.
Walid G. Aref, Ihab F. Ilyas
openaire   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Efficient Hierarchical Spatial Indexing for Managing Remote Sensing Data Streams Using the PL-2000 Map-Sheet System

open access: yesApplied Sciences
Efficient spatial indexing is critical for processing large-scale remote sensing datasets (e.g., LiDAR point clouds, orthophotos, hyperspectral imagery).
Mariusz Zygmunt, Marta Róg
doaj   +1 more source

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