Direct classification of new psychoactive substances in seized blotter papers by ATR-FTIR and multivariate discriminant analysis

2017 ◽  
Vol 133 ◽  
pp. 96-103 ◽  
Author(s):  
Leandro S.A. Pereira ◽  
Fernanda L.C. Lisboa ◽  
José Coelho Neto ◽  
Frederico N. Valladão ◽  
Marcelo M. Sena
Keyword(s):  
Discriminant Analysis ◽  
New Psychoactive Substances ◽  
Psychoactive Substances ◽  
Multivariate Discriminant Analysis ◽  
Multivariate Discriminant

Relationships between risk factors and morphological patterns of human carotid atherosclerotic plaques. A multivariate discriminant analysis

1994 ◽  
Vol 108 (1) ◽  
pp. 39-60 ◽  
Author(s):  
Luigi Giusto Spagnoli ◽  
Alessandro Mauriello ◽  
Giampiero Palmieri ◽  
Giuseppe Santeusanio ◽  
Ada Amante ◽  
...  
Keyword(s):  
Risk Factors ◽  
Discriminant Analysis ◽  
Atherosclerotic Plaques ◽  
Multivariate Discriminant Analysis ◽  
Multivariate Discriminant ◽  
Human Carotid ◽  
Morphological Patterns

scholarly journals The Asymmetric Drift of the Thick Disk Population

1995 ◽  
Vol 164 ◽  
pp. 384-384
Author(s):  
Devendra Ojha ◽  
Annie C. Robin ◽  
Olivier Bienaymé
Keyword(s):  
Discriminant Analysis ◽  
Thick Disk ◽  
Population Synthesis ◽  
Sample Surveys ◽  
Multivariate Discriminant Analysis ◽  
Multivariate Discriminant

We investigate the kinematics of the thick disk population using photometric and astrometric sample surveys towards two opposite directions at intermediate latitude. A multivariate discriminant analysis (MDA) is used to distinguish the ‘Thick Disk’ from other populations with the help of the Besançon model of population synthesis. The data constrain the asymmetric drift of the thick disk population, which is found to be 40±10 km/s and does not depend on the galactic radius.

Chemical classification of new psychoactive substances (NPS)

2020 ◽  
pp. 105877
Author(s):  
Félix Zapata ◽  
José Manuel Matey ◽  
Gemma Montalvo ◽  
Carmen García-Ruiz
Keyword(s):  
New Psychoactive Substances ◽  
Psychoactive Substances ◽  
Chemical Classification

Urine protein markers distinguish stone-forming from non-stone-forming relatives of calcium stone formers

2006 ◽  
Vol 291 (3) ◽  
pp. F530-F536 ◽  
Author(s):  
Kristin J. Bergsland ◽  
Jennifer K. Kelly ◽  
Brian J. Coe ◽  
Fredric L. Coe
Keyword(s):  
Discriminant Analysis ◽  
Stone Formation ◽  
Stone Disease ◽  
Small Subset ◽  
Protein Markers ◽  
Urine Protein ◽  
Multivariate Discriminant Analysis ◽  
Stone Formers ◽  
Calgranulin B ◽  
Multivariate Discriminant

We have investigated urine protein inhibitors of calcium oxalate crystallization to determine whether variations in these proteins are associated with kidney stone disease and whether protein measurements improve the identification of stone formers compared with conventional risk factors (RF). Using Western blotting, we studied variations in the electrophoretic mobility patterns and relative abundances of crystallization-inhibitory proteins in urine from 50 stone-forming (SF) and 50 non-stone-forming (NS) first-degree relatives of calcium SF patients, matched by gender and age. Standard urine chemistry stone risk measurements were also made. Multivariate discriminant analysis was used to test the association of these proteins with nephrolithiasis. Differences in form and abundance of several urine proteins including inter-α-trypsin inhibitor (ITI), prothrombin fragment 1 (PF1), CD59, and calgranulin B (calB) were found to be associated with stone formation. By multivariate discriminant analysis, measurements of forms of PF1, ITI, and calB in men and ITI and CD59 in women, classified 84% of men and 76% of women correctly by stone status. In contrast, standard urine chemistry RF identified only 70% of men correctly and failed to distinguish female SF from NS. Thus a small subset of protein measurements distinguished SF from NS far better than conventional RF in a population of relatives of calcium SF, illustrating the significant association of these proteins with stone disease. Variations in these proteins may serve as markers of stone disease activity or vulnerability to recurrence and may provide new insights into mechanisms of stone formation.

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