SYMPOSIUM ON AEROSPACE RADIOBIOLOGY. VI. GENETIC STUDIES IN LOWER RADIATION BELT, PRELIMINARY ASSAY OF NERV NO. 1 SAMPLES
Genetic and physiological studies of neurospora crassa after lower radiation belt exposure
MICROORGANISM↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Symposium on aerospace, radiobiology. vi - genetic studies in the lower radiation belt. preliminary assay of nerv. no. l samples
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De Busk, A. B.↗
Quantitative assay of photoperiodic floral inhibition and stimulation in biloxi soybean
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Coulter, M. W.↗
Visual monitoring as an assay technique
Visual monitoring techniques for microbiological contamination control to meet spacecraft sterilization requirements
SPACECRAFT STERILIZATION↗
Fluorometric determination of nucleic acids. I. Deoxyribose assay of biological material
Fluorometric method for estimating bacterial population and deoxyribonucleic acid in soil microorganisms
LIFE DETECTOR↗
Changes in adrenal corticosterone concentration in rats - Method of bio-assay for ACTH.
Adrenal corticosterone concentration changes in response to various doses of ACTH and time pattern of changes in hypophysectomized rats
ADRENAL METABOLISM↗
A study of chemical residues left on surfaces after biological assay procedures, phase 2
Chemical residues on capsule mechanical training model subassemblies after bioassay
Gillchriest, W.↗
Effectiveness of utilizing assay coupons for biological load prediction
Bioassay coupons for predicting biological loads and contamination following exposure to vertical laminar flow
Botan, E. A.↗
Direct in-vial collection for liquid-scintillation assay of carbon-14 and tritium
Dissolution of biological materials combines the simplicity of oxygen-flask combustion with the reproducibility and purity of the final product, and convenience of direct in-vial collection of the sample by the sealed-tube method. It assures quantitative and reproducible recoveries.
Huebner, L. G.↗
Assay of urease activity using super 14 C-urea stored, geologically preserved, and in irradiated soils.
Urease activity determined by using C 14 urea in stored, preserved /Permafrost/ and irradiated soils
Mclaren, A. D.↗
An analytical basis for assaying buried biological contamination Interim report
Analysis of procedure for bioassay of viable organisms buried or embedded in spacecraft materials
Kline, R. C.↗
Lower body negative pressure as an assay technique for orthostatic tolerance. I
Human physiological responses to lower body negative pressure /LBNP/, studying presence or absence of change for orthostatic tolerance as function of time
Hoffler, G. W.↗
An automated luciferase assay of bacteria in urine
Automated procedure for direct cell count of bacteria in urine by bioluminescence reaction of luciferase when mixed with ATP
Chappelle, E. W.↗
Lower body negative pressure as an assay technique for orthostatic tolerance. III - A comparison of the individual response to incremental leg negative pressure vs incremental lower body negative pressure
Human orthostatic tolerance measurement via leg and lower body negative pressure, discussing heart rate and stroke volume variations
Hoffler, G. W.↗
The examination of urine samples for pathogenic microbes by the luciferase assay for ATP. 1: The effect of the presence of fungi, fungal like bacteria and kidney cells in urine samples
A method for accurately determining urinary tract infections in man is introduced. The method is based on adenosine triphosphate (ATP) concentration in urine samples after removing nonbacterial ATP. Adenosine triphosphate concentration is measured from the bioluminescent reaction of luciferase when mixed with ATP. An examination was also made of the effectiveness of rupturing agents on monkey kidney cells Candia albicans, a Rhodotorula species, and a Streptomyces species in determining whether these cells could contribute ATP to the bacterial ATP value of a urine sample.
Bush, V. N.↗
Microbiological assay of the Marshall Space Flight Center neutral buoyancy simulator
A neutral buoyancy simulator tank system is described in terms of microbiological and medical safety for astronauts. The system was designed to simulate a gravity-free state for evaluation of orbital operations in a microorganism-free environment. Methods for the identification and elimination of specific microorganisms are dealt with as measures for a pure system of space environment simulation.
Beyerle, F. J.↗
Thin-layer assay of chlorophyll and analogous dry-column separation with effluent fluorometry
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Woeller, F. H.↗
Biological patterns: Novel indicators for pharmacological assays
Variable gravity testing using the KC-135 demonstrated clearly that biological pattern formation was definitely shown to result from gravity alone, and not from oxygen gradients in solution. Motile pattern formation of spermatozoa are driven by alternate mechanisms, and apparently not affected by short-term changes in gravity. The chemical effects found appear to be secondary to the primary effect of gravity. Cryopreservation may be the remedy to the problem of 'spare' or 'standing order' biological samples for testing of space lab investigations, but further studies are necessary.
Johnson, Jacqueline U.↗