150 



Ionization (Cont'd.) 



protective action of prod- 

 ucts, 45 



Isopropyl alcohol, 33 



Journal of Bacteriology, 139 



Kidney 



inhibition of citric acid 



formation, 89 



in vivo studies of enzyme 



inhibition, 87 



radioresistance of cell 



population, 92 

 Krebs cycle, 107 



Lactate, 33 

 Lactic acid, 30 

 Lens 



X-ray induced inhibition of 



-SH groups, 40 

 Light absorption 



effects of radiation, 35 

 Lipid metabolism 



indicator of radiation 



damage, 93 

 Liver 



in vivo studies of enzyme 



inhibition, 87 



sex difference in radiation 



response, 93 

 Lymphocytes 



survival time after irradia- 

 tion, 88 

 Lymphoid tumors, 81 

 Lymphopenia, 89 

 Lysogeny 



induction, 137 

 Lysozine 



effects of irradiation, 34 



Malate, 87 



Medium 



effects on radiosensitivity 

 of E. coli, 58 



Mercaptoethylamine 



locus of protective effect, 51 

 protection against irradia- 

 tion, 101 



Meromyosins 



effect of irradiation, 17 



Methacrylate 



relation between radiation 

 dose and cross-linking, 26 



Methemoglobinemia, 100 



Methyl bis (3-chloroethyl) amine 

 effect on acetoacetate, ace- 

 tate, fumarate, and pyru- 

 vate, 96 



effect on citric acid accumu- 

 lation in liver, 94 

 effect on thymus, 96 



Migration 



electron, 11 

 positive charge, 10 

 weak molecular bond, 17 



Mitochondria 



effect of tennperature on 

 nucleotide leakage, 58 

 response to radiation, 109 



Mitosis 



factors involved in radiation- 

 induced changes, 125 

 mechanism, 78 



Molecular cross-section 



measured by alpha particles 

 and deuterons, 7 



Molecular structure 



effect on radiation response, 



12 



radiation-induced changes, 1 



Molecular transformation, 46 



Molecular volume 



relation to inactivation 

 volume, 7 



Molecular weight 



antigenic surfaces, 22 



DNA, 6 



method of estimation, 13 



pepsin, 5 



trypsin, 5 



urease, 5 



Molecules 



effect of ion pairs on "dry" 

 state, 26 



effect of radiation in vitro, 30 

 effect of radiation on struc- 

 ture, 126 



movement of components, 18 

 multiplication by splitting, 135 

 relation of complexity to ra- 

 diation response, 37 

 relation of size to radiation 

 response, 107 

 surface charge, 26 



