Results 31 to 40 of about 4,071,491 (285)

JOIN² and openCost

open access: yes, 2022
Founded more than 10 years ago, the JOIN² collaboration brings together eight research institutions for the development and operation of a full-fledged shared scholarly publication database and repository based on the Invenio open source framework for ...
Wagner, Alexander, JOIN² Collaboration
core   +1 more source

Optimized Theta-Join Processing

open access: yes, 2021
The Theta-Join is a powerful operation to connect tuples of different relational tables based on arbitrary conditions. The operation is a fundamental requirement for many data-driven use cases, such as data cleaning, consistency checking, and hypothesis ...
Papenbrock, Thorsten   +2 more
core   +1 more source

Algebraic Hyperstructures and Fuzzy Logic in the Treatment of Uncertainty

open access: yesScience & Philosophy, 2016
This study presents some fundamental aspects of recent theories  on algebraic Hyperstructures, an important tool for an interdisciplinary vision of Geometry and Algebra.
Antonio Maturo, Annamaria Porreca
doaj   +1 more source

Lifting of level-1 states in the D1D5 CFT

open access: yesJournal of High Energy Physics, 2020
The D1D5 CFT has a large set of states that are supersymmetric at the ‘free’ orbifold point in moduli space. When we perturb away from this point, some of these states join into long multiplets and lift in energy, while others remain supersymmetric.
Bin Guo, Samir D. Mathur
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

Lightning fast and space efficient inequality joins [PDF]

open access: yesProceedings of the VLDB Endowment, 2015
Inequality joins, which join relational tables on inequality conditions, are used in various applications. While there have been a wide range of optimization methods for joins in database systems, from algorithms such as sort-merge join and band join, to various indices such as B + -tree, R
Zuhair Khayyat   +7 more
openaire   +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

On the Variety of Paths on Complete Intersections in Grassmannians

open access: yesМоделирование и анализ информационных систем, 2014
In this article we study the Fano variety of lines on the complete intersection of the grassmannian G(n, 2n) with hypersurfaces of degrees d1 ..., di . A length l path on such a variety is a connected curve composed of l lines.
S. M. Yermakova
doaj   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

The Optimization of Cost-Model for Join Operator on Spark SQL Platform

open access: yesMATEC Web of Conferences, 2018
Spark needs to use lots of memory resources, network resources and disk I/O resources when Spark SQL execute Join operation. The Join operation will greatly affect the performance of Spark SQL.
Lian Xin, Zhang Tianyu
doaj   +1 more source

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