Multivariate analyses of crater parameters and the classification of craters

The Moon ◽  
1974 ◽  
Vol 9 (3-4) ◽  
pp. 397-413
Author(s):  
Barry S. Siegal ◽  
John C. Griffiths
Keyword(s):  
Multivariate Analyses

scholarly journals Studies on aroma of coffee. Part VIII. Classification of various trade varieties of coffee by coupling of sensory data and multivariate analyses.

1987 ◽  
Vol 51 (7) ◽  
pp. 1745-1752 ◽  
Author(s):  
Kouji WADA ◽  
Seiichi OHGAMA ◽  
Hitoshi SASAKI ◽  
Mitsuya SHIMODA ◽  
Yutaka OSAJIMA
Keyword(s):  
Multivariate Analyses ◽  
Sensory Data

Prognostic Import of French-American-British (FAB) System As Embedded in 2008 Revision of World Health Organization Classification of AML: Review of SWOG Data

Blood ◽  
2011 ◽  
Vol 118 (21) ◽  
pp. 1446-1446
Author(s):  
Laura F Newell ◽  
Megan Othus ◽  
Roland B. Walter ◽  
Stephen H. Petersdorf ◽  
Thomas Chauncey ◽  
...  
Keyword(s):  
World Health Organization ◽  
Multivariate Analyses ◽  
Conflicts Of Interest ◽  
Prognostic Significance ◽  
Predictive Ability ◽  
World Health ◽  
Health Organization ◽  
French American British ◽  
Who 2008

Abstract Abstract 1446 Background: After many years of use, the French-American-British (FAB) system for classification of AML has been replaced by that of the World Health Organization (WHO), as revised in 2008 (Blood 2009;114: 937–51). While unlike FAB, WHO uses genetic and clinical information to specify AML subtypes, the FAB system remains embedded in the WHO category of “AML not otherwise specified” (NOS). Here we ask whether the subdivision by FAB of AML NOS is of prognostic significance. Methods: FAB data were available on 970 newly-diagnosed patients treated on various SWOG protocols from 1986 to 2009. The protocols generally called for 3+7 type induction therapy. Exclusion of patients with recurrent genetic abnormalities, therapy-related AML (T-AML), or AML with myelodysplasia related changes (MDS-AML), as stipulated in WHO 2008 (NPM1 and CEBPA mutation status was unavailable), left 447 with AML NOS whose FAB type was recorded. We used multivariate analyses adjusting for age, sex, cytogenetic risk (SWOG criteria), pretreatment performance status, blood counts, and marrow blasts, to assess whether FAB was independently associated with outcome in these 447 patients and used areas under the receiver operator characteristic curve (AUC) to quantify the predictive ability of FAB, with AUC of 1.0 indicating perfect prediction and an AUC of 0.5 equivalent to a coin flip. Results: The 447 patients had median age of 58 years, CR rate 56% and median survival 17.2 months. Given the association between T-AML or MDS-AML and FAB types M6 or M7 (p=0.02 in this dataset), only 2% of the 447 patients were M6 or M7; 8% were M0, 27% M1, 26% M2, 25% M4, and 12% M5 (we excluded patients with M3). CR rates were 47% M0, 56% M1, 53% M2, 54% M4, 72% M5, and 45% M6 or M7. Survival probability was longest with M6/M7 followed by M5. The multivariate analyses showed the following for the effect of FAB (considered as M0, M1, M2, M4, M6/M7): Results were similar regardless of whether we considered FAB as above or grouped as M0, M1/M2, M4/M5, M6/M7. In particular, FAB was not associated with any outcome and its removal from more complete adjusted models had little effect on the models' predictive ability. Conclusion: These results question the utility of the FAB system as embedded in WHO 2008. Disclosures: No relevant conflicts of interest to declare.

Phenetic affinities of males of the army ant genus Dorylus (Hymenoptera: Formicidae: Dorylinae)

1982 ◽  
Vol 60 (11) ◽  
pp. 2652-2658 ◽  
Author(s):  
David Barr ◽  
William H. Gotwald Jr.
Keyword(s):  
Multivariate Analyses ◽  
Single Species ◽  
Morphological Data ◽  
Taxonomic Structure ◽  
Old World ◽  
Army Ant

Multivariate analyses of males of 25 species of the Old World army ant genus Dorylus were used to investigate taxonomic structure inherent in the morphological data gathered. Results were compared both with the current subgeneric classification of this genus and with results from a similar study on the major workers. Males are phenetically more divergent than major workers. The subgenera Rhogmus, Alaopone, and Typhlopone appear deserving of continued individual status, but species of Anomma and Dorylus (s.s.) form one diverse taxon. Although the single species of Dichthadia is relatively distinctive in this study, a conservative classification would place it with species of Dorylus (s.s.).

scholarly journals Classification of an equine skull in the Science Museum of Coimbra, Portugal, by means of multivariate and qualitative analysis

2021 ◽  
Vol 64 (1) ◽  
pp. 187-195
Author(s):  
Pere M. Parés-Casanova ◽  
Mireia Torrent ◽  
Nuno Carolino ◽  
Joana Cabral-Oliveira
Keyword(s):  
Multivariate Analysis ◽  
Qualitative Analysis ◽  
Multivariate Analyses ◽  
Science Museum ◽  
Sympatric Populations ◽  
Qualitative Traits ◽  
Equus Przewalskii

The study aimed at classifying an equine skull stored in Museu da Ciência da Universidade de Coimbra, Coimbra (Portugal) on the basis of its morphology using multivariate analyses. A visual appraisal had revealed that it was not from a horse. Nineteen cephalic measurements were obtained and compared with available data of horses of different groups (poneys, trait and saddle), equine hybrids, Przewalski’s horse (Equus przewalskii), wild and domestic asses, and quaggas (Equus quagga). Multivariate analysis plus head profile allowed us to assign the skull to a mare hinny -the hybrid between a jenny (female donkey) and a stallion (male horse). The research highlights the possibilities of categorization of equid skulls according to morphometry but with a need to consider qualitative traits, as head profiles. But more such studies are needed to be conducted to establish clearly differences between mules and hinnies, especially among sympatric populations.

scholarly journals Multivariate Analyses and Classification of Inertial Sensor Data to Identify Aging Effects on the Timed-Up-and-Go Test

PLoS ONE ◽  
2016 ◽  
Vol 11 (6) ◽  
pp. e0155984 ◽  
Author(s):  
Danique Vervoort ◽  
Nicolas Vuillerme ◽  
Nienke Kosse ◽  
Tibor Hortobágyi ◽  
Claudine J. C. Lamoth
Keyword(s):  
Multivariate Analyses ◽  
Inertial Sensor ◽  
Sensor Data ◽  
Aging Effects ◽  
Timed Up And Go

The Newcastle Child Depression Project Diagnosis and Classification of Depression

1991 ◽  
Vol 159 (S11) ◽  
pp. 9-21 ◽  
Author(s):  
Israel Kolvin ◽  
Lynn M. Barrett ◽  
S. R. Bhate ◽  
Thomas P. Berney ◽  
O. O. Famuyiwa ◽  
...  
Keyword(s):  
Clinical Data ◽  
Child Psychiatry ◽  
Multivariate Analyses ◽  
Psychiatric Diagnoses ◽  
Child Depression ◽  
Significant Depression ◽  
Child Depression Inventory ◽  
Diagnosis And Classification ◽  
The Relationship

A total of 275 successive referrals to a university child psychiatry unit out-patient department were examined using the Child Depression Inventory. Of these, 95 children were examined further by a structured clinical interview, and the relationship between different instruments for the assessment of depression in childhood was investigated. Just over one-third of the children (35%) had significant depression, and it was found that depression may be missed unless children with other psychiatric diagnoses are examined closely. Multivariate analyses of the clinical data provided factorial validation of diagnoses when employing different clinical diagnostic schemas.

Comparative Parental MMPI Protocols of Children Evaluated at a Child Development Clinic

1974 ◽  
Vol 35 (3) ◽  
pp. 1147-1154 ◽  
Author(s):  
Gordon R. Alley ◽  
Robert A. Forsyth ◽  
Bill Snider ◽  
Erica Opitz
Keyword(s):  
Behavior Disorders ◽  
Multivariate Analyses ◽  
Behavior Disorder ◽  
Validity Scales ◽  
Clinical Scales ◽  
Test Taking ◽  
Cerebral Dysfunction ◽  
The Mean ◽  
Clinic Population

All parents completed an MMPI upon evaluation of their child at a clinic before diagnosis. For this study, 144 pairs of parents were selected to reflect the sex ratio of the clinic population. This sample was divided into three groups according to the diagnostic classification of the child: (1) minimal cerebral dysfunction, (2) behavior disorder, and (3) normal child. Separate multivariate analyses, computed for the groups by comparing the mean MMPI scores on the validity scales and the clinical scales for fathers and mothers, showed no significant differences in MMPIs of fathers on the validity scales. Also, no difference appeared on the three sex-determined analyses of the clinical scales. However, significant differences were found when scores for both the mothers and combined fathers and mothers were analyzed across the validity scales. The mothers of children with behavior disorders produced lower K scores (test-taking attitude). It was concluded that, while these parents could not be differentiated on the basis of clinical scales of the MMPI, they could be on the test-taking attitude of the mothers of those children evidencing behavior disorders.

Phenotyping for resistance to pre-harvest sprouting in grain sorghum

2021 ◽  
pp. 1-10
Author(s):  
María Verónica Rodríguez ◽  
Gonzalo Joaquín Arata ◽  
Sandra Mabel Díaz ◽  
Santiago Rentería ◽  
Roberto L. Benech-Arnold
Keyword(s):  
Multivariate Analyses ◽  
Inhibitory Effect ◽  
Grain Sorghum ◽  
Cereal Crops ◽  
Morphological Attributes ◽  
Grain Dormancy ◽  
Low Levels ◽  
Sorghum Genotypes ◽  
Harvest Maturity

Abstract Pre-harvest sprouting (PHS) is a common threat to cereal crops in which the grain maturation phase takes place under rainy, moist conditions. Susceptibility to PHS is higher in sorghum genotypes displaying low levels of seed dormancy before harvest maturity. Other attributes such as glume or panicle morphology may also affect susceptibility to PHS. Breeding for resistance to PHS in grain sorghum requires the identification of grain physiological and morphological attributes affecting this trait, and a protocol for phenotyping and rating genotypes according to their susceptibility to PHS. In this work, we tested germination under laboratory conditions using detached grains and intact panicles for a panel of 20 sorghum genotypes including 11 parental lines, 6 hybrids and 3 reference inbred lines with contrasting PHS response. Records for natural sprouting in the field for these genotypes were also included in the analysis. Multivariate analyses of germination data allowed separation of genotypes into two major categories (resistant and susceptible to PHS). Laboratory germination data correlated significantly with PHS in the field. In most genotypes, the glumes had a significant, inhibitory effect on germination. The low levels of grain dormancy were observed among high tannin backgrounds, and vice versa, indicating that a pigmented testa alone does not provide resistance to PHS. Altogether, the phenotyping protocol allowed the classification of sorghum genotypes according to their susceptibility to PHS and the identification of different attributes useful for breeding for PHS resistance in this crop.

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