Equation of state and universal solid phase of one-dimensional dipolar fluids.

Macroscopic and structural properties of one-dimensional (1D) dipolar fluids are investigated theoretically. The equation of state is fully explored by means of analytical limiting laws, integral equations and corroborating Monte Carlo simulations. An interesting mapping with the Tonks gas (i.

Worldwide availability of medications for migraine and tension-type headache: A survey of the International Headache Society.

Background: In this study, we aimed to evaluate the differing global access to acute and preventive medications for migraine and tension-type headache.

Methods: A custom-built questionnaire created by members of the International Headache Society Juniors Group was sent to International Headache Society members worldwide, including a list of acute and preventive treatments for migraine and tension-type headache. This list was based on evidence-based medicine guidelines.