Medical Implications of Space Radiation Exposure Due to Low Altitude Polar Orbits

Space radiation research has progressed rapidly in recent years, but there remain large uncertainties in predicting and extrapolating biological responses to humans. Exposure to cosmic radiation and Solar Particle Events may pose a critical health risk to future spaceflight crews and can have a serious impact to all biomedical aspects of space exploration. The relatively minimal shielding of the cancelled 1960's Manned Orbiting Laboratory program's space vehicle and the high inclination polar orbits would have left the crew susceptible to high exposures of cosmic radiation and high dose-rate SPEs that are mostly unpredictable in frequency and intensity. In this study, we have modeled the nominal and off-nominal radiation environment that a MOL-like spacecraft vehicle would be exposed to during a 30-day mission using high performance, multi-core computers. Projected doses from a historically large SPE (e.g. the August 1972 solar event) have been analyzed in the context of the MOL orbit profile, providing an opportunity to study its impact to crew health and subsequent contingencies.It is reasonable to presume that future commercial, government, and military spaceflight missions in low-Earth orbit will have vehicles with similar shielding and orbital profiles. Studying the impact of cosmic radiation to the mission's operational integrity and the health of MOL crewmembers provides an excellent surrogate and case-study for future commercial and military spaceflight missions.Comment: 6 pages, 4 figures, 2 table

Samuel Enoch Stumpf: A Man of Many Dimensions

For more than a generation, Professor Stumpf\u27s students and colleagues have enjoyed the luxury of learning from a man whose own interests and expertise cross traditional lines in academic disciplines and whose analysis of problems, issues, and ideas arches high above the traveled paths of those disciplines

Opening Remarks

Law is, in many ways, a backwards-looking field. We litigate over facts that have already occurred, challenge deals that have already been signed, and apply rules of decision based on previously-established precedent or statutes already enacted. To the extent that this Center and the symposium reflect on Berle’s work, they too are an exercise in looking back. Indeed, some might say the establishment of a Center named in Berle’s honor is a monument to the past

Changing face of play in Australian primary school playgrounds

This thesis examines the play of children in three Melbourne primary school playgrounds, in diverse socio-economic areas. Play categories were developed and data was collected using qualitative methods. The influence of school policy, teacher supervision styles, playspace design and provision of play equipment was explored and compared for each school. The voices of principals, teachers and children, in conjunction with playground observations and questionnaire response were compiled in order to develop a clear picture of each school playground. Findings showed that children in each school participated in a full range of play categories and were prepared to break school rules in order to do so