{'fraction_non_alphanumeric': 0.011523687580025609, 'fraction_numerical': 0.0, 'mean_word_length': 5.516666666666667, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
A computer analysis of the role of oxygen in the modification of radiosensitivity of self-renewing cell systems.

Information obtained by a number of investigators for mammalian cell systems has been used as a basis for a computer analysis of the effects produced by assumed oxygen distributions on radiosensitivity in simple twocompartment tissue models. At low exposures, surviving distributions are slightly better oxygenated; as dose increases the distribution shifts in the hypoxic direction. The effect of time and dose on postirradiation changes has been studied by a computer program developed to study time-dependent changes in radiosensitivity after an initial conditioning exposure. These data can be of importance in establishing fractionation regimens in radiotherapy.