328 



INDEX 



Ionizing radiations (contin.) 

 dose measurement of, 236-237 

 effects of, biological, 93, 234 ff 

 biophysical, 245-247 

 on molecules, 243, 252 

 on neuromuscular junctions, 292 

 whole body, 254-256 

 energy loss of (LET), 104 

 excitation by, 93 

 pair production by, 105-106 

 production of foreign molecules by, 



242-244 

 therapy by, 93, 256 

 Iron metabolism, kinetics of, 310 

 Irradiation, natural sources of, 239 

 Isomers, definition, 143 

 Isotopes: decay schemes, 114, 116 

 stable and unstable, 73, 104 

 tables of biologically useful, 114, 115,259 



j — flow rate; flux during diffusion; current 

 Joule, unit, 28 

 Junction potential, 186 



k — constant, usually a specific rate constant, 

 such as k,, k 7 , etc. 



kw — kilowatt 



KE — kinetic energy, 28 



k — Boltzmanns constant (ideal gas constant 

 per molecule) 



K — constant in light scattering equation 



A" — equilibrium constant 



A" — Michaelis constant 



A t — thermal conductivity 



Kamen, on tracer isotopes, 118 



Katz, on neuromuscular junction, 291 



K-shell electrons, 71 



Kelvin, on measurement, 8 



Kendrew, on structure of myoglobin, 126, 

 132 



Kinetics, definitions, 12, 92 

 biophysical, 192 ff 



in analysis of iron metabolism, 310-313 

 in analysis of muscle contraction, 287-289 



Kinetic processes, five: similarities and in- 

 tegration of, 228-229, 230 



Kuzin, on tracers, 122 



kvp — kilovolt potential 



/ — distance; mobility 



L — length of an electrical conductor; sym- 

 bol of a splitting reaction 

 Lambert, unit of illumination, 87 

 Lambert's law, 80-81 

 Land, on color vision, 89 

 LD 50 lethal dose for 50 per cent of sample, 

 values, 240, 241 



Lehmann, on mediators, 184 

 Leibnitz, on limits, 1 1 

 Lenses, 85 



aberrations and astigmatism, 90-91 



aperture of, 98 



in microscope, 96-100 

 LET— linear energy transfer (-dE/dx), 104, 



237 (Table) 

 Levers, bones in ear as, 58 



classes and illustration of, 31 



mechanical advantage of, 30 

 Life, 75 

 Light, nature and absorption of, 76, 80, 83 ff 



energy quanta of, 76, 80 



extinction coefficient of, 81 



sources, 79 



wave and particle nature, 177 

 Limits, 11-12 

 Linear energy transfer (LET), 104, 237 



(Table) 

 Lipocellulose, 134 

 Lipoproteins, binding forces in, 42 



encephalitis, and binding in, 42 



structure of, 129, 134 

 Liquid crystals, 124 

 In — natural logarithm 

 Load-velocity relationship for muscle, 280 

 Logarithms, definition and laws of, 21 



table of, 317 

 Lohmann reaction, 282 

 London-van der Waals' forces described, 42 

 Loudness of sound, 55 



relation of, to sensitivity of detector, 56 



m — meter 



m — constant; mass; degree of maturity 



M — momentum; molecular weight 



Mev — million electron volts 



c JTl — Young's modulus 



Machines, computing {See Computers) 



Macintosh, an anesthesia, 33, 56 



Macromolecules, crystalline, 127-134 



dissolved, 135-140 



excited states of, 145 



in living membranes, 140-143 



molecular weights, methods and table, 

 135-140 



mutations in DNA and RNA, 154-156 



physical properties of typical, 128-129 

 Magnetic field, effect on cell division, 44 

 Mainland, on medical statistics, 19, 25 

 Martin and Johnson, on microscopy, 95 

 Mass and inertia, 27 

 Mass action, law of, 194 

 Mathematics, in biophysics, 8 



review, 9-25 



