Skylab Trash Airlock

The Skylab Trash Airlock (TAL) used throughout the Skylab mission to transfer trash materials that could support microbial growth from the pressurized cabin to the unpressurized waste tank is described. The TAL, which uses several basic mechanisms, was successfully operated daily for the 170 days of manned missions for a total of 637 cycles

Secondary centres of economic activity in the East Midlands: final report

This report outlines the findings of a study of secondary centres of economic activity in the East Midlands. The study builds on previous work undertaken in the ‘GDP Growth in the East Midlands and Yorkshire and Humberside regions’ project by the Enterprise Research and Development Unit on behalf of emda and Yorkshire Forward

Sceloporus occidentalis

Number of Pages: 17Integrative BiologyGeological Science

Morphologies, metastability and coarsening of quantum nanoislands on the surfaces of the annealed Ag(110) and Pb(111) thin films

Morphological evolution of heteroepitaxial nanoislands toward equilibrium (coarsening) is computed using the detailed continuum model that incorporates the quantum size effect. Results reveal the metastability of the "magic" heights, show the morphological transitions and the surface diffusion routes by which a quantum island reaches its stable height, and provide the coarsening laws for the island density and area, thus clarifying the kinetic morphology pathways in the growth of an ultrathin metal films.Comment: Accepted for publication in the Journal of Applied Physic

TNT equivalency of M10 propellant

Peak, side-on blast overpressure and scaled, positive impulse have been measured for M10 single-perforated propellant, web size 0.018 inches, using configurations that simulate the handling of bulk material during processing and shipment. Quantities of 11.34, 22.7, 45.4, and 65.8 kg were tested in orthorhombic shipping containers and fiberboard boxes. High explosive equivalency values for each test series were obtained as a function of scaled distance by comparison to known pressure, arrival time and impulse characteristics for hemispherical TNT surface bursts. The equivalencies were found to depend significantly on scaled distance, with higher values of 150-100 percent (pressure) and 350-125 percent (positive impulse) for the extremes within the range from 1.19 to 3.57 m/cube root of kg. Equivalencies as low as 60-140 percent (pressure) and 30-75 percent (positive impulse) were obtained in the range of 7.14 to 15.8 m/cube root of kg. Within experimental error, both peak pressure and positive impulse scaled as a function of charge weight for all quantities tested in the orthorhombic configuration

Exploring children's development of ideas in music and dance

Eisner maintains that the Arts education community needs ‘empirically grounded examples of artistic thinking related to the nature of the tasks students engage in, the material with which they work, the context’s norms and the cues the teacher provides to advance their students’ thinking’ (2000:217). This paper reflects on preliminary results of a collaborative research project between teachers and university researchers that is investigating how children develop and refine arts-making ideas and related skills in Dance and Music in a small sample of schools in New Zealand. Factors such as the place of repetition in the development of ideas, the relevance of offers, the place of verbal and non-verbal communication in arts idea generation, and group work as an accepted ritual of practice, are explored and discussed

Welcome to Journal of Ethnobiology and Ethnomedicine

Ethnobiology is a multidisciplinary field of study that draws on approaches and methods from both the social and biological sciences. Ethnobiology aims at investigating culturally based biological and environmental knowledge, cultural perception and cognition of the natural world, and associated behaviours and practices. Ethnomedicine is concerned with the cultural interpretations of health, disease and illness and also addresses the health care seeking process and healing practices. Research interest and activities in the areas of ethnobiology and ethnomedicine have increased tremendously in the last decade. Since the inception of the disciplines, scientific research in ethnobiology and ethnomedicine has made important contributions to understanding traditional subsistence and medical knowledge and practice. The Journal of Ethnobiology and Ethnomedicine (JEE) invites manuscripts and reviews based on original interdisciplinary research from around the world on the inextricable relationships between human cultures and nature, on Traditional Environmental Knowledge (TEK), folk and traditional medical knowledge, as well as on the relevance of the above for Primary Health Care (PHC) policies in developing countries

Paradox and promise in joint school/university arts research

Collaborative university and school research projects are inevitably labour intensive endeavours that require the careful negotiation of trust and the joint development of critique of current practice. While this raises tension it also builds generative communities of inquiry that can enhance both theory and practice. This paper reports on an Arts project undertaken in primary classrooms between university staff and generalist teacher co-researchers focusing on children’s idea development in dance, drama, music and art. This two year project is briefly outlined and some issues that arise in school research are explored. Project collaborators need to exercise caution in their examination of practice and strive to resist premature closure. All parties need to hold the tension of apparent contradictions, being both interested (in effective Arts pedagogy) and disinterested (in order to heighten perception) so that they might ‘surprise themselves in a landscape of practice with which many are very familiar indeed’ (McWilliam 2004:14). These issues and paradoxes in collaborative research are considered alongside some particular processes that build school and university partnerships