Search results for "Correlative"
showing 5 items of 5 documents
A New Approach To The Identification Of Cognitive Conflicts In The Repertory Grid: An Illustrative Case Study
1992
Abstract The concept of cognitive conflicts and its relation to the success of psychoanalytically oriented psychotherapy are discussed. According to this model of therapy, patients should achieve insight into their conscious as well as unconscious conflicts. Therefore in the present study we assumed that demonstrable cognitive changes would occur over treatment for chronic pain, as measured by Kelly's (1955) Repertory Grid Test. Grids were analyzed with regard to conflicts on the basis of the concept of unbalanced triads. A triad may be described as unbalanced when logical inconsistencies can be demonstrated on the basis of a correlative comparison of three corresponding construct pairs. Co…
Compulsive Internet Use and Academic Procrastination: Significant Comparative, Correlative and Predicting Indicators in a Romanian Student Sample
2017
Abstract The purpose of this study was to investigate significant measures between indicators / factors associated to compulsive Internet use and academic procrastination behaviors, for a sample of students, from Romanian education institutions. Previous transcultural findings indicate that compulsive Internet use and procrastination behaviours, but in most cases investigated separately, can interfere, distract, delay and / or have a negative impact on academic work / achievement (completing reading assignments, homework, studying for exams / academic failure), task performance and quality of life (personal and social obligations). Romanian participants were asked on a voluntary basis and w…
Taxonomic flux as a measure of evolutionary turnover
2021
We introduce a new metric, "taxonomic flux", to quantify evolutionary trends both within and across taxonomic boundaries. This metric is normalized, which reduces the effect of sample size disparity between biologic groups and time intervals. Furthermore, this methodology considers stratigraphic range data as a whole, and measures relative growth or decline of diversity values as they deviate from system stability. Such trends may yield key information relating to evolutionary processes and forcing functions, especially if these trends are correlative within particular taxa or niche occupancy. Thus far, scientists and researchers have been stymied by absolute values derived from unequal dat…
Correlative Raman-Electron-Light (CREL) Microscopy Analysis of Lipid Droplets in Melanoma Cancer Stem Cells.
2022
Among all neoplasms, melanoma is characterized by a very high percentage of cancer stem cells (CSCs). Several markers have been proposed for their identification, and lipid droplets (LDs) are among them. Different techniques are used for their characterization such as mass spectrometry, imaging techniques, and vibrational spectroscopies. Some emerging experimental approaches for the study of LDs are represented by correlative light–electron microscopy and by correlative Raman imaging–scanning electron microscopy (SEM). Based on these scientific approaches, we developed a novel methodology (CREL) by combining Raman micro-spectroscopy, confocal fluorescence microscopy, and SEM coupled with an…
Intravenous SPION-labeled adipocyte-derived stem cells targeted to the brain by magnetic attraction in a rat stroke model: An ultrastructural insight…
2021
Abstract Mesenchymal stem cell therapy after stroke is a promising option investigated in animal models and clinical trials. The intravenous route is commonly used in clinical settings guaranteeing an adequate safety profile although low yields of engraftment. In this report, rats subjected to ischemic stroke were injected with adipose-derived stem cells (ADSCs) labeled with superparamagnetic iron oxide nanoparticles (SPIONs) applying an external magnetic field in the skull to retain the cells. Although most published studies demonstrate viability of ADSCs, only a few have used ultrastructural techniques. In our study, the application of a local magnetic force resulted in a tendency for hig…