The Raman spectrum showing the in-plane compressive stress of the GaN epitaxial structures grown on vicinal sapphire selleck kinase inhibitor substrates revealed the relation between the dislocation density and the carrier localization degree in MQWs. From transmission electron microscopy images, the threading dislocation density (TDD) of In0.2Ga0.8N/GaN MQWs grown on 0.2 vicinal sapphire substrate at the bottom of n-GaN layer was about 9.4 X 10(8) cm(-2) and reduced to 3.0 X 10(8) cm(-2) at the top of n-GaN layer. We also obtained the TDD of 5.6 X 10(7) cm(-2) in the MQW region and only 1.0 X 10(7) cm(-2) in the p-GaN region. Based on the results
mentioned above, 0.2 degrees-off substrate can offer In0.2Ga0.8N/GaN MQW blue light-emitting diode structures with benefits, such as high crystal quality, low defects, and small carrier localization degree. (C) 2009 American Institute of Physics. (DOI: 10.1063/1.3055264)”
“Background: A growing, but conflicting body of literature suggests altered empathic abilities in subjects with anorexia nervosa-restricting type (AN-R). This study aims to characterize the cognitive and affective empathic profiles of adolescents with purely AN-R.
Methods: As part of a standardized clinical and research protocol, the Interpersonal Reactivity Index (IRI), a valid and reliable self-reported instrument to measure empathy, was administered to 32 female
adolescents with AN-R and in 41 healthy controls (HC) comparisons, matched for age and gender. Correlational analyses were performed to evaluate the links between empathy scores and psychopathological AZD5153 measures.
Results: Patients scored significantly lower than HC on cognitive empathy (CE), while they did not differ from controls on affective empathy (AE). The deficit in CE was not related to either disease severity nor was it related to associated psychopathology.
Conclusion: These results, albeit preliminary, suggest that a dysfunctional pattern of CE capacity may be a stable trait of AN-R that should be taken into account
not only for the clinical management, but also in preventive and therapeutic intervention.”
“Objective: Coping strategies mediate the GSK923295 supplier relationship between challenging situations and their impact on psychosocial outcomes. Many long-term cancer survivors continue to face a range of challenges in their daily lives, yet little is known about how this population copes. The study explored the prevalence and predictors of cancer-specific coping strategies among a heterogeneous sample of long-term cancer survivors.
Methods: A population-based cross-sectional sample of 863 adult cancer survivors 5-6 years post-diagnosis completed a pen-and-paper survey. Cancer-specific coping was assessed via the Mini-Mental Adjustment to Cancer (mini-MAC) Scale. Potential predictor variables included patient, disease and treatment characteristics and social support.