Hierarchic analysis of variance in the classification of industrial environmental hazards

1976 ◽  
Vol 38 (1) ◽  
pp. 61-67 ◽  
Author(s):  
Wies?aw Jedrychowski
Keyword(s):  
Analysis Of Variance ◽  
Environmental Hazards

scholarly journals Characterisation of Vranec, Cabernet sauvignon and Merlot wines based on their chromatic and anthocyanin profiles

2013 ◽  
Vol 78 (9) ◽  
pp. 1309-1322 ◽  
Author(s):  
Maja Dimitrovska ◽  
Elena Tomovska ◽  
Mirjana Bocevska
Keyword(s):  
Analysis Of Variance ◽  
Principle Component Analysis ◽  
The Other ◽  
Cabernet Sauvignon ◽  
Colour Intensity ◽  
Total Polyphenols ◽  
Age Limits ◽  
The Individual ◽  
Grape Varieties

Wines of three different grape varieties, Vranec, Cabernet Sauvignon and Merlot were examined for their characterisation in terms of anthocyanin and chromatic profiles, total polyphenols and antioxidant potential. Total, monomeric, polymeric and copigmented anthocyanins were determined by spectrophotometry and the individual anthocyanin compounds were quantified using HPLC-DAD. Chromatic profile was evaluated according to colour density, hue, % red, % blue, % yellow and brilliance (% dA). The established data were submitted to analysis of variance and principle component analysis in order to evaluate their potential for differentiation of wines according to variety and vintage. Vranec wines have shown distinctive characteristics, with the highest content of anthocyanins and values of colour intensity, % red and % dA, compared to the other two studied varieties. The content of petunidin-3-glucoside, peonindin-3-glucoside and anthocyanin acetates were established as possible markers for differentiation of Vranec wines from Cabernet Sauvignon and Merlot wines. However, none of the assayed parameters could be used for differentiation of Cabernet Sauvignon from Merlot wines. It was observed that wine age limits successful classification of the wines by variety according to anthocyanins. The chromatic parameters allowed distinguishing of young (aged up to 1 year) from old Vranec wines.

Classification of Mass in Two Views Mammograms: Use of Analysis of Variance (ANOVA) for Reduction of the Features

2013 ◽  
Vol 3 (1) ◽  
pp. 80-88 ◽  
Author(s):  
R.S. Jacomini ◽  
M.Z. Nascimento ◽  
R.D. Dantas ◽  
R.P. Ramos
Keyword(s):  
Analysis Of Variance

Relations among Dimensions of Reading Attitudes and Stages of Internalization of Reading Attitudes Held by Prospective Teachers

1988 ◽  
Vol 67 (2) ◽  
pp. 407-414
Author(s):  
Terry C. Ley ◽  
Barbara B. Schaer ◽  
Jone P. Wright ◽  
Kathy S. Neal
Keyword(s):  
Multivariate Analysis ◽  
Analysis Of Variance ◽  
Prospective Teachers ◽  
Reading Attitudes ◽  
Individual Development ◽  
Reading Attitude ◽  
Significant Function ◽  
Main Effect ◽  
Attitude Scales

To estimate how two reading attitude scales are related, 198 prospective teachers were administered the Mikulecky Behavioral Reading Attitude Measure and the Teale-Lewis Reading Attitude Scales. The former allowed classification of subjects according to Krathwohl's five stages of internalization of attitudes, while the Teale-Lewis scale measured the value subjects placed upon individual development, utilitarian and enjoyment dimensions of reading. Canonical analysis showed that the two instruments are related, with one significant function accounting for 64% of the variance. All subscales contributed significantly. The two-way multivariate analysis of variance with three dependent measures (Teale-Lewis dimensions) and two independent measures (sex and the five Mikulecky stages) gave one significant main effect—the five Mikulecky stages Readers classified at higher stages of internalization of attitudes tended 10 place greater value on all three Teale-Lewis dimensions than did readers at lower stages. Although 22% of the subjects were classified at one of the two highest stages (organization and characterization), 69% were classified at one of the two lowest stages (attending and responding).

Generalization of Results beyond the Experimental Setting: Statistical versus Logical Considerations

1970 ◽  
Vol 31 (2) ◽  
pp. 443-446 ◽  
Author(s):  
Richard J. Neufeld
Keyword(s):  
Analysis Of Variance ◽  
Experimental Situation ◽  
Random Variables ◽  
Experimental Results ◽  
Experimental Setting ◽  
Independent Variables ◽  
Experimental Context ◽  
Entire Complex

The conventional distinction between fixed and random variables in analysis of variance is discussed. It is suggested that certain “incidental” conditions prevailing when experimentation occurs, e.g., time(s) and place(s) of experimentation, can be classified as unbalanced independent variables. Given this classification of these incidental conditions, generalization of experimental results beyond situations exactly duplicating that set of conditions attendant to the experiment, requires either statistical or logical provision. As statistical provision for the entire complex of incidental conditions prevailing during an experiment would be infeasible, logical considerations must be employed in generalization of results beyond the experimental context. It is suggested that to consider incidental conditions of the experimental situation as being unbalanced independent variables should lead to vigilance with regard to those incidental conditions possibly contributing to the obtained experimental outcome. Inasmuch as generalization of obtained results beyond the experimental setting is contingent upon logical considerations, it is suggested that the validity of such logical provision should always be verified by E.

Environmental hazards from natural hydrocarbons seepage: Integrated classification of risk from sediment chemistry, bioavailability and biomarkers responses in sentinel species

2014 ◽  
Vol 185 ◽  
pp. 116-126 ◽  
Author(s):  
Maura Benedetti ◽  
Stefania Gorbi ◽  
Daniele Fattorini ◽  
Giuseppe D'Errico ◽  
Francesco Piva ◽  
...  
Keyword(s):  
Environmental Hazards ◽  
Sediment Chemistry ◽  
Sentinel Species
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