It is argued, contrary to various claims and expectations, that the phase shifts calculated via variational principles for the t matrix involving complex algebra may exhibit anomalous behavior. These anomalies are numerically ...

It is argued, contrary to various claims and expectations, that the phase shifts calculated via variational principles for the t matrix involving complex algebra may exhibit anomalous behavior. These anomalies are numerically ...

The present work shows a discussion about the problematic related to the anomalies of fluoride concentrations in groundwaters intended for human provisioning and also about the public health issues and financial waste ...

In the recent years there has been a constant discussion between the others and leading researchers in health and the world's environment, which are the benefits (inhibition of caries and dental enamel remineralization) ...

It is demonstrated, contrary to various claims, that the phase shifts calculated via variational principles involving the Green function may exhibit anomalous behavior. These anomalies may appear in variational principles ...

Context. Recent attention has been directed to abundance variations among very young stars. Aims. We perform a detailed abundance study of the Herbig Ae star HD 101412, taking advantage of its unusually sharp spectral ...