scholarly journals A new method for indicator species analysis in the framework of multivariate analysis of variance

2021 ◽  
Vol 32 (2) ◽  
Author(s):  
Carlo Ricotta ◽  
Sandrine Pavoine ◽  
Bruno E. L. Cerabolini ◽  
Valério D. Pillar
Keyword(s):  
Multivariate Analysis ◽  
Analysis Of Variance ◽  
Indicator Species ◽  
New Method ◽  
Indicator Species Analysis ◽  
Multivariate Analysis Of Variance ◽  
Species Analysis

scholarly journals MULTIVARIATE MULTIVARIATE ANALYSIS OF WEEDS OF CHICKPEA, MUSTARD AND WHEAT CROP FIELDS OF TEHSIL ISAKHEL, DISTRICT MIANWALI (PUNJAB), PAKISTAN

2021 ◽  
Vol 27 (2) ◽  
pp. 153-162
Author(s):  
Sohaib Muhammad
Keyword(s):  
Multivariate Analysis ◽  
Indicator Species ◽  
Wheat Crop ◽  
Indicator Species Analysis ◽  
Weed Species ◽  
Percentage Cover ◽  
Crop Fields ◽  
Species Analysis

Multivariate analysis through Two Way Indicator Species Analysis (TWINSPAN) was conducted to study the phytosociological attributes of weeds of some selected crop fields of chickpea, mustard and wheat of Tehsil Isa Khel, District Mianwali, Punjab. Forty one (41) weed species were collected from the study area belonging to twenty one (21) different families. Twenty four weed species found in chickpea, twenty five in mustard and twenty nine in wheat crop fields. Sixteen weed species were common in three crops. Family Poaceae and Astraceae had maximum weed species i.e. 7 and 6 species respectively followed by Euphorbiaceae, Fabaceae, Chenopodiaceae, Papaveraceae, Zygophyllaceae and so on. Asphodelus tenuifolius, Medicago monantha and Carthamus oxycantha are frequently occurring weeds relative to others. Two-Way Indicator Species Analysis (TWINSPAN) was performed on the percentage cover basis which divided the weed species into groups, sub groups, associations and sub associations.

Selflessness in Anorexia Nervosa as Reflected in the Rorschach Comprehensive System

2012 ◽  
Vol 33 (1) ◽  
pp. 78-93 ◽  
Author(s):  
Gili Curiel-Levy ◽  
Laura Canetti ◽  
Esti Galili-Weisstub ◽  
Myrna Milun ◽  
Eitan Gur ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Anorexia Nervosa ◽  
Analysis Of Variance ◽  
Clinical Observation ◽  
Comparison Group ◽  
Comprehensive System ◽  
Multivariate Analysis Of Variance ◽  
Rorschach Comprehensive System ◽  
Group A

This study examines the expression of selflessness – the tendency to ignore one’s own needs and serve others’ needs – in Rorschach protocols of women suffering from anorexia nervosa. The protocols of 35 women suffering from anorexia nervosa were compared to 30 protocols of a psychiatric comparison group. A multivariate analysis of variance over five variables (AG, PER, PHR, COP, and GHR) was significant: Anorexic patients showed higher characteristics of selflessness compared to the psychiatric comparison group. These findings contribute to the validation of the Rorschach technique and to the clinical observation of selflessness in anorexic patients, and they emphasize specific characteristics in the treatment of anorexia nervosa patients.

A Controlled Study of Sensation Awareness and Verbal Disclosure for Regulation of Arousal and Anxiety

1992 ◽  
Vol 74 (1) ◽  
pp. 307-320 ◽  
Author(s):  
Stephen R. Scholle
Keyword(s):  
Multivariate Analysis ◽  
Analysis Of Variance ◽  
State Anxiety ◽  
Significant Interaction ◽  
Controlled Study ◽  
Multivariate Analysis Of Variance ◽  
Directed Attention ◽  
Self Talk ◽  
Anxiety Levels

Interactions of attention and verbalization were investigated for effects of self-reported arousal and state-anxiety. Levels of verbalization from silence through talking-without-a-listener to disclosure were compared while self-directed attention was manipulated for sensation versus general thoughts and feelings. Following a stimulus, disclosure of sensations was expected to reduce state anxiety and increase energetic arousal significantly more than disclosure of thoughts. Based on a randomly assigned sample of 120 men, a 3 × 2 × 2 multivariate analysis of variance indicated a significant interaction in the predicted directions. A significant interaction was also found for the 3 × 2 interaction for energetic arousal. For state anxiety means were in the predicted direction. Results indicate that verbalization of sensations is more energizing and calming than silence, while for general thought, silence is more energizing and calming than verbalization. The results suggest efficacy in reframing self-talk to quiet awareness and in communicating sensed distinctions as they emerge.

Extended linear hypotheses and simultaneous tests in multivariate analysis of variance

Biometrika ◽  
1974 ◽  
Vol 61 (3) ◽  
pp. 467-477 ◽  
Author(s):  
G. S. MUDHOLKAR ◽  
M. L. DAVIDSON ◽  
P. SUBBAIAH
Keyword(s):  
Multivariate Analysis ◽  
Analysis Of Variance ◽  
Multivariate Analysis Of Variance

Investigation of Variation in Fatigue Life Calculated Using Damage Fraction

1990 ◽  
Vol 35 (2) ◽  
pp. 35-41
Author(s):  
Clifford T. Gunsallus ◽  
Edward Nagy ◽  
Patrick G. Stennett ◽  
William G. Flannelly
Keyword(s):  
Multivariate Analysis ◽  
Fatigue Life ◽  
Analysis Of Variance ◽  
Multivariate Analysis Of Variance ◽  
Curve Reduction

This paper identifies the leading causes for large variations in the calculated fatigue lives of the hypothetical pitch link experiment of the American Helicopter Society, conducted in cooperation with all U.S. manufacturers of military helicopters. Multivariate Analysis of Variance (MANOVA) is used to show that approximately 85 percent of the variations can be attributed to only two of the five analytical steps involved and the interactions between them. These steps are the method of cycle counting and the amount of S/N curve reduction.

Relationship of Curriculum Area and Course Format with Student Ratings of Instruction

1978 ◽  
Vol 15 (4) ◽  
pp. 483-487 ◽  
Author(s):  
Isaac I. Bejar ◽  
Kenneth O. Doyle
Keyword(s):  
Multivariate Analysis ◽  
Analysis Of Variance ◽  
Significant Relationship ◽  
Student Ratings ◽  
Multivariate Analysis Of Variance ◽  
Student Ratings Of Instruction ◽  
Course Format ◽  
Curriculum Area ◽  
Relationship Of

Multivariate analysis of variance revealed a significant relationship between student ratings and curriculum area but not between ratings and course format. The technical and practical ramifications of these findings are discussed.

Bird distributional patterns support biogeographical histories and are associated with bioclimatic units in the Atlantic Forest, Brazil

Zootaxa ◽  
2017 ◽  
Vol 4337 (2) ◽  
pp. 223 ◽  
Author(s):  
CRISTIANO DE SANTANA CARVALHO ◽  
NAYLA FÁBIA FERREIRA DO NASCIMENTO ◽  
HELDER F. P. DE ARAUJO
Keyword(s):  
Multivariate Analysis ◽  
Atlantic Forest ◽  
Analysis Of Variance ◽  
Forest Birds ◽  
Distributional Pattern ◽  
Parsimony Analysis ◽  
Multivariate Analysis Of Variance ◽  
Distributional Patterns ◽  
Parsimony Analysis Of Endemicity

Rivers as barriers to dispersal and past forest refugia are two of the hypotheses proposed to explain the patterns of biodiversity in the Atlantic Forest. It has recently been shown that possible past refugia correspond to bioclimatically different regions, so we tested whether patterns of shared distribution of bird taxa in the Atlantic Forest are 1) limited by the Doce and São Francisco rivers or 2) associated with the bioclimatically different southern and northeastern regions. We catalogued lists of forest birds from 45 locations, 36 in the Atlantic forest and nine in Amazon, and used parsimony analysis of endemicity to identify groups of shared taxa. We also compared differences between these groups by permutational multivariate analysis of variance and identified the species that best supported the resulting groups. The results showed that the distribution of forest birds is divided into two main regions in the Atlantic Forest, the first with more southern localities and the second with northeastern localities. This distributional pattern is not delimited by riverbanks, but it may be associated with bioclimatic units, surrogated by altitude, that maintain current environmental differences between two main regions on Atlantic Forest and may be related to phylogenetic histories of taxa supporting the two groups. 

Multivariate analysis of variance of designed chromatographic data. A case study involving fermentation of rooibos tea

2017 ◽  
Vol 1489 ◽  
pp. 115-125 ◽  
Author(s):  
Federico Marini ◽  
Dalene de Beer ◽  
Nico A. Walters ◽  
André de Villiers ◽  
Elizabeth Joubert ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Analysis Of Variance ◽  
Multivariate Analysis Of Variance ◽  
Chromatographic Data ◽  
Rooibos Tea
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