DURING the past decade, the relationship between digitalis drugs and potassium has been extensively investigated. Attention has been given primarily to the effect of potassium upon the digitalized state. It has been shown that administration of potassium abolishes the cardiotoxic manifestations of digitalis.' The converse has also been established, namely, that depletion of body potassium store...

The activity of yeast invertase as a function of oxidation-reduction potential has been investigated using a large number of oxidants and reductants. The activity is constant over the range of E(h) from -270 to +600 mv., but above E(h) = +600 mv. there is a sharp decrease in activity reaching 0 at E(h) = +1,000 mv. The inhibiting action of strong oxidants is upon the enzyme rather than on the s...

We extend some previous results of ours [1] on the error of the averaging method, in the one-frequency case. The new error estimates apply to any separating family of seminorms on the space of the actions; they generalize our previous estimates in terms of the Euclidean norm. For example, one can use as a separating family of seminorms the absolute values of the components of the actions: with ...

We construct a non-abelian extension Γ of S by Z/3 × Z/3, and prove that Γ acts freely and smoothly on S × S. This gives new actions on S × S for an infinite family P of finite 3-groups. We also show that any finite odd order subgroup of the exceptional Lie group G2 admits a free smooth action on S × S. This gives new actions on S×S for an infinite family E of finite groups. We explain the sign...

We show that non-chiral N = 2 supergravity in ten-dimensions admits a family of dual actions where the one-form, two-form or three-form is replaced by the sevenform, six-form or five-form respectively. The dual actions and supersymmetry transformations are given.

There are known infinite families of Brieskorn homology 3-spheres which can be realized as boundaries of smooth contractible 4-manifolds. In this paper we show that smooth free periodic actions on these Brieskorn spheres do not extend smoothly over a contractible 4-manifold. We give a new infinite family of examples in which the actions extend locally linearly but not smoothly.

Background: There is a relationship between diseases and the quality of life. Epilepsy is a disease that is unpredictable and uncontrollable and its actions are limited to scattered and brief education. Therefore, this study aimed to investigate the effect of family-centered empowerment program on the quality of life of mothers with epileptic children. Methods:</strong...