A Set of QVT Relations to Assure the Correctness of Data Warehouses by Using Multidimensional Normal Forms

2006 ◽  
pp. 385-398 ◽  
Author(s):  
Jose-Norberto Mazón ◽  
Juan Trujillo ◽  
Jens Lechtenbörger
Keyword(s):  
Normal Forms ◽  
Data Warehouses ◽  
Qvt Relations

Reconciling requirement-driven data warehouses with data sources via multidimensional normal forms

2007 ◽  
Vol 63 (3) ◽  
pp. 725-751 ◽  
Author(s):  
Jose-Norberto Mazón ◽  
Juan Trujillo ◽  
Jens Lechtenbörger
Keyword(s):  
Normal Forms ◽  
Data Sources ◽  
Data Warehouses

Normal Forms and Bifurcation of Planar Vector Fields

1994 ◽  
Author(s):  
Shui-Nee Chow ◽  
Chengzhi Li ◽  
Duo Wang
Keyword(s):  
Vector Fields ◽  
Normal Forms ◽  
Planar Vector Fields ◽  
Planar Vector

Data Warehouses in der Gesamtbanksteuerung

Controlling ◽  
2003 ◽  
Vol 15 (6) ◽  
pp. 323-330 ◽  
Author(s):  
Jürgen Propach ◽  
Svend Reuse
Keyword(s):  
Data Warehouses

METHODS OF REDUCING OF LARGE BOOLEAN FORMULAS REPRESENTED IN A CONJUNCTIVE NORMAL FORM FOR DETERMINING THEIR SATISFIABILITY

2020 ◽  
Author(s):  
N.I. Gdansky ◽  
◽  
A.A. Denisov ◽  
Keyword(s):  
Normal Form ◽  
Normal Forms ◽  
Conjunctive Normal Form ◽  
Boolean Formulas

The article explores the satisfiability of conjunctive normal forms used in modeling systems.The problems of CNF preprocessing are considered.The analysis of particular methods for reducing this formulas, which have polynomial input complexity is given.

Regularization of Integral Operators in Singularly Perturbed Problems Using Normal Forms

Vestnik MEI ◽  
2019 ◽  
Vol 6 ◽  
pp. 131-137
Author(s):  
Abdukhafiz A. Bobodzhanova ◽  
◽  
Valeriy F. Safonov ◽  
Keyword(s):  
Normal Forms ◽  
Integral Operators ◽  
Singularly Perturbed ◽  
Singularly Perturbed Problems

Extending QVT Relations for Business Process Model Transformation

2011 ◽  
Vol 22 (2) ◽  
pp. 195-210 ◽  
Author(s):  
Xiao HE ◽  
Zhi-Yi MA ◽  
Yan ZHANG ◽  
Wei-Zhong SHAO
Keyword(s):  
Business Process ◽  
Model Transformation ◽  
Process Model ◽  
Business Process Model ◽  
Qvt Relations

scholarly journals CagA-PositiveHelicobacter pyloriInfection and Reduced Sperm Motility, Vitality, and Normal Morphology

2013 ◽  
Vol 35 ◽  
pp. 229-234 ◽  
Author(s):  
E. Moretti ◽  
G. Collodel ◽  
L. Mazzi ◽  
M. S. Campagna ◽  
N. Figura
Keyword(s):  
Sperm Motility ◽  
Normal Forms ◽  
Molecular Mimicry ◽  
Sperm Quality ◽  
Semen Analysis ◽  
Normal Morphology ◽  
Partial Linear ◽  
Caga Status ◽  
The Relationship ◽  
Autoimmune Phenomena

Helicobacter pylori(HP) infection, particularly when caused by strains expressing CagA, may be considered a concomitant cause of male and female reduced fertility. This study explored, in 87 HP-infected males, the relationship between infection by CagA-positive HP strains and sperm parameters. HP infection and CagA status were determined by ELISA and Western blotting; semen analysis was performed following WHO guidelines. The amino acid sequence of human enzymes involved in glycolysis and oxidative metabolism were “blasted” with peptides expressed by HP J99. Thirty-seven patients (42.5%) were seropositive for CagA. Sperm motility (18% versus 32%; ), sperm vitality (35% versus 48%; ) and the percentage of sperm with normal forms (18% versus 22%; ) in the CagA-positive group were significantly reduced versus those in the CagA-negative group. All the considered enzymes showed partial linear homology with HP peptides, but four enzymes aligned with four different segments of the samecagisland protein. We hypothesize a relationship between infection by strains expressing CagA and decreased sperm quality. Potentially increased systemic levels of inflammatory cytokines that occur in infection by CagA-positive strains and autoimmune phenomena that involve molecular mimicry could explain the pathogenetic mechanism of alterations observed.

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