Collective efficacy belief, within-group agreement, and performance quality among instrumental chamber ensembles

We examined collective efficacy beliefs, including levels of within - group agreement and correlation with performance quality, of instrumental chamber ensembles (70 musicians, representing 18 ensembles). Participants were drawn from collegiate programs and intensive summer music festivals located in the No rthwestern and Western regions of the United States. Individuals completed a 5 - item survey gauging confidence in their group’s performance abilities; each ensemble’s aggregated results represented its collective efficacy score. Ensembles provided a video - r ecorded performance excerpt that was rated by a panel of four string specialists. Analyses revealed moderately strong levels of collective efficacy belief and uniformly high within - group agreement. There was a significant, moderately strong correlation bet ween collective efficacy belief and within - group agreement ( r S = .67, p < .01). We found no relationship between collective efficacy belief and performance quality across the total sample, but those factors correlated significantly for festival - based ensem bles ( r S = .82, p < .05). Reliability estimates suggest that our collective efficacy survey may be suitable for use with string chamber ensembles. Correlational findings provide partial support for the theorized link between efficacy belief and performance quality in chamber music settings, suggesting the importance for music educators to ensure that positive efficacy beliefs become well founded through quality instruction

Citizens of Character - The Values and Character Dispositions of 14-16 Year Olds in the Hodge Hill Constituency

Citizens of Character explores the attitudes, dispositions, and values of 14-16 year old students in a particular urban environment - the six schools of the Hodge Hill constituency in Birmingham - and the extent to which the education system and the local environment advance or inhibit their sense of self, their values and their character development. These students constituted a heterogeneous group of religious and non-religious individuals. This project goes beyond the normal exploration and measurement of strengths of character in individuals and looks at the factors that build character in families and schools. This research has wider implications for the relationship between character and aspirations, social change, school cultures, citizenship, identity and religion. The study discusses what students understand by character. It set out to ascertain the moral values held by a group of students living in an inner-city area. The study sought to question who or what has influenced their moral values and examined which individuals, institutions and situations might have hindered or promoted their development. Some of the issues and concerns which arose - for example, relations with neighbours, the matter of local and national pride and questions of trust - may seem not to impinge upon character education as such but are relevant in a wider context

UV descriptions of composite Higgs models without elementary scalars

We consider four-dimensional UV descriptions of composite Higgs models without elementary scalars, in which four-fermion interactions are introduced to an underlying gauge theory like in the gauged NJL model. When the anomalous dimension of the fermion bilinear is large, these interactions drive the spontaneous global symmetry breaking in the model, with the Higgs identified as a Nambu-Goldstone boson. The UV descriptions support composite top partner operators, also with large anomalous dimensions, thereby providing an explicit realisation of the idea of partial compositeness. In particular, the composite SO(6)/SO(5) model can be described by an Sp gauge theory with four flavours of fermion, together with a vector-like pair of fermions transforming in the antisymmetric representation and charged under SU(3) colour. These fermions confine to produce both the Higgs and top partner bound states. Our methods can also be applied to different coset groups, suggesting that four-fermion operators can describe the underlying UV dynamics of other composite Higgs models.Comment: 28 pages. V2: references added, version accepted for publicatio

Observational constraints on interstellar dust models

No single model has been able to account for all of the observed spectroscopic properties of interstellar or circumstellar dust. The reason for this is that, despite the agreement that the grains are composed of silicaceous/metal oxide and carbonaceous material, there is strong disagreement as to their exact structure and composition. This led Draine and Lee (1984) to use interstellar extinction data to define an interstellar graphitic material; new observational findings have made even that identification uncertain. But the great advantage of their approach is that they used observations at all of the wavelengths available to define the material. Here, the authors attempt a variation of that approach. They examine recent UV and IR data and attempt to put constraints on the possible types of interstellar grain composition, and to connect these constraints with grain models. A summary of some of the important constraints imposed by the observations is given