Plastic deformation behaviour of decagonal Al70Ni15Co15 single quasicrystals

High-temperature deformation experiments have been performed on decagonal Al₇₀Ni₁₅Co₁₅ single quasicrystals at a constant strain rate of 10^-5s^-1 in the temperature range between 700 and 860°C. The samples were deformed in compression with the compression axis in different orientations, parallel to, inclined by 45° and perpendicular to the tenfold symmetry axis. Stress relaxation tests and temperature changes were carried out to determine thermodynamic activation parameters. The flow stress and the activation enthalpy were found to depend on the sample orientation whereas dependences of the activation volume and the stress exponent on the orientation were not observed. Additionally, deformation tests were performed on samples of the basic Co-rich modification of the decagonal phase at the temperature of 860°C in the same three orientations. The deformation behaviours of the two different modifications of the decagonal phase are discussed.     

Reducing obstacles to the provision of quality diabetic care

Abstract

High quality diabetic care is seen as influenced by the organisation of care, health care workers' involvement in diabetes-specific areas, co-operation among staff members, the availability of resources, and the competence of medical staff (including both physicians and nurses). In a prospective study we have tested a programme for improvements of the quality of diabetes services which combined organisational development and continuing medical education (CME) measures. The study involved 34 primary health care centres over an 18 month period and was based on the responses to questionnaires answered by 123 general practitioners and 247 registered nurses at the 34 PHCCs.

The combined programme had a considerable influence on inter-group co-operation, staff members' perceptions of resources available, and nurses' involvement in diabetic care (54 versus 30% seeing diabetic patients for regular check-ups).

The results show that, in order to diminish obstacles to high quality care, organisation of care as well as care workers' theoretical knowledge has to be focused.     

Self-regulation processes and thriving in childhood and adolescence: a view of the issues

Both organismic and intentional self-regulation processes must be integrated across childhood and adolescence for adaptive developmental regulations to exist and for the developing person to thrive, both during the first two decades of life and through the adult years. To date, such an integrated, life-span approach to self-regulation during childhood and adolescence has not been fully formulated. The purpose of this monograph is to provide such integration; in this introduction, the editors of the monograph explain the purposes of the volume and provide a brief overview of the work of the contributing scholars.     

Unknowability and Incarnation: Creation and Christology as Philosophy of Science in the Work of Nicholas Cusanus

Nicholas Cusanus contributed to the development of modern science through a philosophy of unknowability, according to which the fact that the world makes sense is interpreted as a gift from the Creator, and the fact that it makes sense for the human is seen as an implication of the human being created in God's image. As placed on the crossroads between the eternal and the finite, the human is thus confronted with the challenge of discerning the manifestations of the infinite in the finite. This challenge was realized by Christ, who is thus epistemologically relevant as a demonstration of the possibility of adequate human knowledge through the coincidence of the human difference from and union with God.     

Let's Dialogue About Penny: Effectiveness of Dialogue Involvement and Legitimizing Paltry Contribution Techniques1

Earlier research has shown (Cialdini & Schroeder, 1976) that the statement “Even a penny will help” added to a standard request for charity donation considerably increases the probability of carrying it out. The present study tested the effectiveness of this technique in various contexts in a set of 3 field experiments conducted on the streets of 2 Polish cities. The results proved, first, that success can be strengthened when combined with a dialogue in which a requester is involved prior to being asked for a donation. Second, it was shown that the dialogue itself produced more compliance than did a monologue. Third, it was demonstrated that dialogue related to the content of the requested issue may or may not result in an increase in compliance, presumably depending on the in‐group/out‐group focus of the dialogue's content. Practical implications for charity donation are offered.     

Neuropsychological function in a group of patients 25 years after sustaining minor head injuries as children and adolescents

Previous studies suggest that neuropsychological impairment following mild to moderate pediatric head injury may become persistent and interrupt the normal course of intellectual development. In this study 45 subjects were assessed with a standardized neuropsychological test battery 25 years after sustaining mild to moderate head injury as children. Although the group scores in the normal range, significant relations between head injury severity and current neuropsychological function were found. The most important predictor of poor outcome was length of PTA at injury, EEG pathology, and loss of consciousness at injury. No significant influence of pre- and post-injury risk factors on current neuropsychological function was evident. The findings support the view that complicated mild and moderate paediatric head injury may heighten the risk of developing subtle neuropsychological problems later in life.     

The interplay of personality and negative comments about appearance in predicting body image

This study investigates how personality traits in combination with frequency of and emotional reaction to negative comments about appearance while growing up are related to appearance evaluation and orientation among adult women. Nine hundred and seven participants from a representative sample of Norwegian women aged 22–55, answered questions measuring body image, personality (Big Five), and history of experiencing negative comments about appearance. Results indicated that only emotional reaction to negative comments about appearance significantly predicted both appearance evaluation and orientation, while frequency of negative comments did not. Being extrovert predicted more positive appearance evaluation and being more appearance oriented than being introvert. Scoring high on neuroticism was related to negative appearance evaluation and high appearance orientation. The findings demonstrate the importance of differentiating between the frequency and the emotional impact of teasing as well as including personality traits when studying body image.     

Brain activation during semantic processing in autism spectrum disorders via functional magnetic resonance imaging

Language and communication deficits are core features of autism spectrum disorders (ASD), even in high-functioning adults with ASD. This study investigated brain activation patterns using functional magnetic resonance imaging in right-handed adult males with ASD and a control group, matched on age, handedness, and verbal IQ. Semantic processing in the controls produced robust activation in Broca's area (left inferior frontal gyrus) and in superior medial frontal gyrus and right cerebellum. The ASD group had substantially reduced Broca's activation, but increased left temporal (Wernicke's) activation. Furthermore, the ASD group showed diminished activation differences between concrete and abstract words, consistent with behavioral studies. The current study suggests Broca's area is a region of abnormal neurodevelopment in ASD, which may be linked with semantic and related language deficits frequently observed in ASD.