Predicted levels of human radiation tolerance extrapolated from clinical studies of radiation effects

Results of clinical studies of radiation effects on man are used to evaluate space radiation hazards encountered during manned space travel. Considered are effects of photons as well as of mixed fission neutrons and gamma irradiations in establishing body radiosensitivity and tolerance levels. Upper and lower dose-response-time relations for acute radiation syndromes in patients indicate that man is more than sufficiently radioresistant to make the risks of an early radiation effect during one short space mission intangibly small in relation to the other nonradiation risks involved

Comparator for the comparison of two binary numbers Patent

Characteristics of comparator circuits for comparison of binary numbers in information processing syste

Predicting attrition of new Student Affairs professionals through perceptions of work-related quality of life, synergistic supervision, and executive servant leadership

Abstract New professional attrition in Student Affairs has been established as a concern for the field (Bender, 1980; Lorden, 1998; Renn & Hodges, 2007; Marshall, Gardner, Hughes, & Lowery, 2016). The debilitating impacts on university finances, productivity, organizational stability, team disruption, and innovation as a result of this problem creates urgency for the field to understand its predictors. The current study reviewed the impact of new professionals’ work-related quality of life, their perception of the use of synergistic supervision by their direct supervisors, and their perception of the use of executive servant leadership by divisional leaders as potential predictors of attrition. Using logistic regression, several models were examined to determine the isolated influence of each of these study variables and the cumulative impact. Counter to hypotheses, the perceptions of style in both the supervisor and divisional leaders were not statistically significant. As hypothesized, the predictive value of work-related quality of life for new professionals proved to be significant, demonstrating that as new professionals increase in their level of work-related quality of life, the odds of them intending to leave the field decrease. The factors of work-related quality of life were further explored for their predictive value. New professionals’ job and career satisfaction and their general well-being were important predictors with both demonstrating that as they increased, the odds of new professionals intending to leave the field decreased. Control at work was a significant predictor as well with increases in the perceived level of control leading to increases in the odds of new professionals intending to leave Student Affairs. These findings provide insight on new professional attrition for Student Affairs supervisors, divisional leaders, and national organizations. Recommendations for Student Affairs leadership and suggestions for further research are discussed

Dosimetry for radiobiological studies of the human hematopoietic system

A system for estimating individual bone marrow doses in therapeutic radiation exposures of leukemia patients was studied. These measurements are used to make dose response correlations and to study the effect of dose protraction on peripheral blood cell levels. Three irradiators designed to produce a uniform field of high energy gamma radiation for total body exposures of large animals and man are also used for radiobiological studies

Multifactorial analysis of human blood cell responses to clinical total body irradiation

Multiple regression analysis techniques are used to study the effects of therapeutic radiation exposure, number of fractions, and time on such quantal responses as tumor control and skin injury. The potential of these methods for the analysis of human blood cell responses is demonstrated and estimates are given of the effects of total amount of exposure and time of protraction in determining the minimum white blood cell concentration observed after exposure of patients from four disease groups

Error correcting method and apparatus Patent

Description of error correcting methods for use with digital data computers and apparatus for encoding and decoding digital dat

Data compressor Patent

Description of system for recording and reading out data related to distribution of occurrence of plurality of event

Demonstration of a quantile system for compression of data from deep space probes

Quantile system of data compression for space telemetr

Studies Relative to the Radiosensitivity of Man: Based on Retrospective Evaluations of Therapeutic and Accidental Total-Body Irradiation

The radiobiologic studies carried out with joint (AEC) ERDA and NASA support during the years 1964 to 1974 at the Medical Division of Oak Ridge Associated Universities are presented. The physiologic data generated were similar in many ways to those previously observed in other medical radiobiologic experiences. They differed, however, in the methods of data acquisition and analysis. Instead of more conventional analytical methods, pulmonary impedance was recorded and quantitated as a measure of radiation-induced gastrointestinal distress and fatiguability. While refinements in dose response related to gastrointestinal distress were accomplished, it was also found that through the use of Fourier analysis of pulmonary impedance waveform GI distress could easily be recognized and quantified even when the initial stages of nausea were below the subjects subjective level of recognition. The results demonstrate that change in pulmonary impedance waveform closely parallel well-defined stages of GI distress, i.e., initial nausea, a progressive increase in nausea, and finally vomiting episodes

Logic realization of simple majority voting connectives

Redundant circuitry is added to computer network to eliminate incorrect output obtained due to a component failure, noise, or some other disturbance. This circuitry provides majority operation. Only NAND gates are employed, and the modules used are among the most popular microelectronic or integrated circuits presently in use