## Biological Reactions Caused by Electric Currents and by X-rays: A Theoretical Study of the Phenomena of Excitation in the Nerve by Different Electric Currents and of the Biological Reactions Caused by X-rays, Both Based Upon a Common Principle |

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### Contents

A HYPOTHETICAL EQUATION OF METABOLISM | 9 |

IV | 16 |

SOME GENERAL PROPERTIES | 18 |

14 other sections not shown

### Common terms and phrases

Acta Radiologica alternating currents anode approximately assimilation assimilation-coefﬁcient assimilation-velocity assumed become biogenic matter biogenic substance biogenic unity Biol cathode cations cause cells Chronaxie CHWEITzER’s scheme coefﬁcients Conc concen conditioning current constant current Constant Quantity Relation course critical amplitude current-pulse current-strength deﬁne deﬁnite determined develop difﬁculties diminish diphasic direct current dissimilation dosage effect equation of metabolism excitation occurs excitatory disturbance experimentally experiments fact ﬁnd ﬁrst ﬂow follows formula FoRssBERG functions gradually growth-rate HILL’s Hit-theory HYPOTHESIS increasing inﬁnitely long duration inﬂuence intensity ion-concentrations ions ions play irradiation irreversible changes large number latency-time LAUGIER linearly living object mathematical maximum minimal gradient minimum nerve normal number of elements observed obtain phenomena Physiol Physiological Electrotonus possible primum movens radio-sensitive Radiobase reached reactions Relative Concentration relaxation-time resting-value result reversible Rheobase rising currents sciatic nerve sigmoidal sigmoidal curves simpliﬁed skin strength-duration curve sufﬁce sufﬁciently survival-curves theory threshold-value tissue tration tumour velocity X-rays