Results 151 to 160 of about 15,215,863 (336)
A system for conceptual and logical database design [PDF]
Computer Science Journal of Moldova, 1993 The general scheme of a system for a conceptual and logical database design is described.
V. Cotelea +3 more
doaj
Improving Web Database Access Using Decision Diagrams [PDF]
arXiv, 2002 In some areas of management and commerce, especially in Electronic commerce (E-commerce), that are accelerated by advances in Web technologies, it is essential to support the decision making process using formal methods. Among the problems of E-commerce applications: reducing the time of data access so that huge databases can be searched quickly ...
arxiv
Molecular Oncology, EarlyView.TGF‐β has a complex role in cancer, exhibiting both tumor‐suppressive and tumor‐promoting properties. Using a series of differentiated tumoroids, derived from different stages and mutational background of colorectal cancer patients, we replicate this duality of TGF‐β in vitro. Notably, the atypical but highly aggressive KRASQ22K mutation rendered early‐
Theresia Mair +17 more
wiley +1 more source
COVID‐19 and the risk of Alzheimer's disease, amyotrophic lateral sclerosis, and multiple sclerosis
Annals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1953-1961, December 2022., 2022 Abstract Background The coronavirus disease 2019 (COVID‐19) pandemic has had an unprecedented impact on the healthcare system, economy, and society. Studies have reported that COVID‐19 may cause various neurologic symptoms, including cognitive impairment.
Hanyu Zhang, Zengyuan Zhou
wiley +1 more source
Semantics and Evaluation of Top-k Queries in Probabilistic Databases [PDF]
arXiv, 2008 We study here fundamental issues involved in top-k query evaluation in probabilistic databases. We consider simple probabilistic databases in which probabilities are associated with individual tuples, and general probabilistic databases in which, additionally, exclusivity relationships between tuples can be represented.
arxiv
A database design methodology and tool for information systems [PDF]
, 1985 Roger King, Dennis McLeod
openalex +1 more source
Molecular Oncology, EarlyView.Loss of the frequently mutated chromatin remodeler ARID1A, a subunit of the SWI/SNF cBAF complex, results in less open chromatin, alternative splicing, and the failure to stop cells from progressing through the cell cycle after DNA damage in bladder (cancer) cells. Created in BioRender. Epigenetic regulators, such as the SWI/SNF complex, with important
Rebecca M. Schlösser +11 more
wiley +1 more source
On the effects of logical database design on database size, query complexity, query performance, and energy consumption [PDF]
arXivDatabase normalization theory is the basis for logical design of relational databases. Normalization reduces data redundancy and consequently eliminates potential data anomalies, while increasing the computational cost of read operations. Despite decades worth of applications of normalization theory, it still remains largely unclear to what extent ...
arxiv
An integrated database with system optimization and design features [PDF]
A customized, mission-specific relational database package was developed to allow researchers working on the Mars oxygen manufacturing plant to enter physical description, engineering, and connectivity data through a uniform, graphical interface and to ...
Arabyan, A. +2 more
core +1 more source