scholarly journals Possible Evidence of a Point of Discontinuity (T*) on the Arrhenius Relationship for the Ba0.5Sr0.5Co1-xFexO3-δ Solid Solutions: A Non-Conventional Analysis

2018 ◽  
Author(s):  
Edoardo Magnone ◽  
◽  
Grazia Accardo ◽  
Paolo Mele ◽  
◽  
...  
Keyword(s):  
Solid Solutions ◽  
Arrhenius Relationship ◽  
Conventional Analysis

Identifying Patterns in Complex Field Data

2017 ◽  
Vol 225 (3) ◽  
pp. 268-284 ◽  
Author(s):  
Andrew J. White ◽  
Dieter Kleinböhl ◽  
Thomas Lang ◽  
Alfons O. Hamm ◽  
Alexander L. Gerlach ◽  
...  
Keyword(s):  
Heart Rate ◽  
Panic Disorder ◽  
Latent Class ◽  
Treatment Protocol ◽  
Situational Factors ◽  
Self Report ◽  
Complex Field ◽  
Cluster Assignment ◽  
Experimental Conditions ◽  
Conventional Analysis

Abstract. Ambulatory assessment methods are well suited to examine how patients with panic disorder and agoraphobia (PD/A) undertake situational exposure. But under complex field conditions of a complex treatment protocol, the variability of data can be so high that conventional analytic approaches based on group averages inadequately describe individual variability. To understand how fear responses change throughout exposure, we aimed to demonstrate the incremental value of sorting HR responses (an index of fear) prior to applying averaging procedures. As part of their panic treatment, 85 patients with PD/A completed a total of 233 bus exposure exercises. Heart rate (HR), global positioning system (GPS) location, and self-report data were collected. Patients were randomized to one of two active treatment conditions (standard exposure or fear-augmented exposure) and completed multiple exposures in four consecutive exposure sessions. We used latent class cluster analysis (CA) to cluster heart rate (HR) responses collected at the start of bus exposure exercises (5 min long, centered on bus boarding). Intra-individual patterns of assignment across exposure repetitions were examined to explore the relative influence of individual and situational factors on HR responses. The association between response types and panic disorder symptoms was determined by examining how clusters were related to self-reported anxiety, concordance between HR and self-report measures, and bodily symptom tolerance. These analyses were contrasted with a conventional analysis based on averages across experimental conditions. HR responses were sorted according to form and level criteria and yielded nine clusters, seven of which were interpretable. Cluster assignment was not stable across sessions or treatment condition. Clusters characterized by a low absolute HR level that slowly decayed corresponded with low self-reported anxiety and greater self-rated tolerance of bodily symptoms. Inconsistent individual factors influenced HR responses less than situational factors. Applying clustering can help to extend the conventional analysis of highly variable data collected in the field. We discuss the merits of this approach and reasons for the non-stereotypical pattern of cluster assignment across exposures.

Optical vibration modes in Hg1-xZnxTe solid solutions near q=0

1989 ◽  
Vol 50 (21) ◽  
pp. 3223-3232 ◽  
Author(s):  
G. Le Bastard ◽  
R. Granger ◽  
S. Rolland ◽  
Y. Marqueton ◽  
R. Triboulet
Keyword(s):  
Solid Solutions ◽  
Vibration Modes ◽  
Optical Vibration

Valence instabilities of Tm in its compounds and solid solutions

1979 ◽  
Vol 40 (C5) ◽  
pp. C5-314-C5-320 ◽  
Author(s):  
F. Holtzberg ◽  
T. Penney ◽  
R. Tournier
Keyword(s):  
Solid Solutions

E. S. R. OF Gd3+ IN La2O3 AND ITS SOLID SOLUTIONS WITH CeO2

1976 ◽  
Vol 37 (C7) ◽  
pp. C7-204-C7-207
Author(s):  
G. BACQUET ◽  
C. BOUYSSET ◽  
D. HERNANDEZ
Keyword(s):  
Solid Solutions

EXCITON LOCALIZATION BY COMPOSITIONAL FLUCTUATIONS IN II-VI SEMICONDUCTOR SOLID SOLUTIONS

1985 ◽  
Vol 46 (C7) ◽  
pp. C7-173-C7-177 ◽  
Author(s):  
S. Permogorov ◽  
A. Reznitsky ◽  
S. Verbin ◽  
A. Naumov ◽  
W. von der Osten ◽  
...  
Keyword(s):  
Solid Solutions ◽  
Exciton Localization
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