The chemical composition and energy content of the energetic cosmic radiation

A brief survey is made of our present knowledge of the composition and energy spectra of the primary cosmic radiation. The total energy carried by all forms of cosmic radiation that have appreciable penetrability into matter has been evaluated

Building better relationships: Developing critically reflective practice when working preventatively with domestic violence and abuse

Background and context: This article presents reflections on critical participatory action research into the development of critically reflective practice, conducted by the first author alongside practitioners who work preventively in the field of domestic violence and abuse. It is part of a doctorate in health science undertaken in response to the need to question assumptions, presuppositions and meaning perspectives in what is a complex and harmful area of interprofessional practice. Aims: The research aims are to develop knowledge and professional/interprofessional practice in this ill-defined area of practice in two phases – phase 1: creating opportunities for interprofessional critical reflection; and phase 2: examining the impact this has on individual and collective practice. This article offers an emerging framework for critically reflective interprofessional practice, and critical reflections on phase 1 of the study, from the perspective of insider/practitioner/researcher, through the lenses of sincerity and significance in qualitative research. Implications for practice: The article concludes by proposing potentially important implications for practice development in the following areas: • Interprofessional practice • The conditions required for developing critically reflective practice • How we reveal, understand and work with power dynamics when working with conflict, violence and abuse

Stopping relativistic Xe, Ho, Au and U nuclei in nuclear emulsions

Nuclei of Xe-54, Ho-67, Au-79 and U-92 accelerated at the Bevalac to energies between 1200 and 900 MeV/n were stopped in nuclear emulsions. The observed residual ranges were compared with those calculated from various models of energy loss and shown to be most consistent with a calculation that includes those higher order correction terms proposed previously to describe the energy loss of highly charged particles, for which the first Born approximation is not valid

Variations in the propagation of UH-nuclei

Calculations of the propagation of UH-nuclei were improved by extending the number of individual nuclides considered, and by using more recent evaluations of the rigidity dependence of the escape length, the possible source composition, and altered cross sections. The effects of using different expressions for the dependence of abundances on first ionization potentials (FIP) are outlined. The sensitivity of the calculated elemental abundances to the various changes made in the propagation assumptions are discussed