ORCID Profile
0000-0002-8384-5978
Current Organisation
Universitas Padjadjaran
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Publisher: Springer Science and Business Media LLC
Date: 2008
DOI: 10.1007/BF03039139
Publisher: Elsevier BV
Date: 08-2003
DOI: 10.1016/S0005-7967(02)00099-2
Abstract: This article reports on the validation of the Obsessive Beliefs Questionnaire (OBQ) and Interpretations of Intrusions Inventory (III) developed by the Obsessive Compulsive Cognitions Working Group (OCCWG) to assess the primary beliefs and appraisals considered critical to the pathogenesis of obsessions. A battery of questionnaires that assessed symptoms of anxiety, depression, obsessive-compulsive symptoms and worry was administered to 248 outpatients with a DSM-IV diagnosis of Obsessive-Compulsive Disorder (OCD), 105 non-obsessional anxious patients, 87 non-clinical adults from the community, and 291 undergraduate students. Tests of internal consistency and test-retest reliability indicated that the OBQ and III assessed stable aspects of OC-related thinking. Between-group differences and correlations with existing measures of OC symptoms indicated that the OBQ and III assess core cognitive features of obsessionality. However, the various subscales of the OBQ and III are highly correlated, and both measures evidenced low discriminant validity. The findings are discussed in terms of the relevance and specificity of cognitive constructs like responsibility, control and importance of thoughts, overestimated threat, tolerance of uncertainty and perfectionism for OCD.
Publisher: Asian Journal of Chemistry
Date: 2021
DOI: 10.14233/AJCHEM.2021.23076
Abstract: Gadolinium is a potential T1 contrast agent because it provides a better image for magnetic resonance imaging (MRI). However, as toxic gadolinium ions can be released from the coordination compounds, it is often encapsulated using silica. Silica-encapsulated gadolinium citrate is a colloid, therefore, encapsulation efficiency should be determined by the standard addition method, not the external standard, to minimize errors in the matrix. Silica-encapsulated gadolinium citrate (Gd-C6H5O7@SiO2) was prepared via the Stöber sol-gel method by mixing gadolinium citrate, ethanol, aqua proinjection, tetraethylorthosilicate (TEOS) and ammonia, then the encapsulation efficiency was determined using the standard addition method. Particle size analysis revealed that the average size of Gd-C6H5O7@SiO2 particles was 1.53 μm having a encapsulation efficiency of 90.44%.
Publisher: Elsevier BV
Date: 11-2005
DOI: 10.1016/J.BRAT.2004.07.010
Abstract: The Obsessive Belief Questionnaire (OBQ) and the Interpretation of Intrusions Inventory (III) were designed to assess beliefs and appraisals considered critical to the pathogenesis of obsessions. In previous reports we have described the construction and psychometric properties of these measures. In this study a battery of questionnaires assessing anxiety, depression, and obsessive compulsive symptoms was completed by 410 outpatients diagnosed with obsessive compulsive disorder, 105 non-obsessional anxious patients, 87 non-clinical adults from the community, and 291 undergraduate students. Items from 6 theoretically derived subscales of the OBQ were submitted to factor analysis. Three factors emerged reflecting (1) Responsibility and threat estimation, (2) Perfectionism and intolerance for uncertainty, and (3) Importance and control of thoughts. A 44-item version (OBQ-44) composed of high-loading items from the 3 factors showed good internal consistency and criterion-related validity in clinical and non-clinical s les. Subscales showed less overlap than original scales. Factor analysis of the III yielded a single factor, suggesting the total score be used in lieu of the 3 rationally derived subscales. The scales performed well on tests of convergent validity. Discriminant validity was promising hierarchical regression analyses indicated that the OBQ subscales and III generally predicted OC symptoms after controlling for general distress. A revision of the OBQ, the OBQ-44, is included in the appendix
No related grants have been discovered for Diana Rakhmawaty Eddy.