Recalcitrant bubbles

Recalcitrant bubbles

We demonstrate that thermocapillary forces may drive bubbles against liquid flow in 'anomalous' mixtures. Unlike 'ordinary' liquids, in which bubbles migrate towards higher temperatures, we have observed vapour bubbles migrating towards lower temperatures, therefore against the flow. This unusual behaviour may be explained by the temperature dependence of surface tension of these binary mixture...

Recalcitrant cubital tunnel syndrome

Ulnar nerve neuropathy at the elbow represents the second most frequent compression neuropathy of the upper extremity. Of the five different anatomical areas responsible for ulnar nerve compression at the elbow region, the epitrochlear-olecranon channel and Osborne’s arcade are the most common. An additional cause of nerve damage is a dynamic process in which the ulnar nerve dislocates anterior...

Recalcitrant nongenital warts.

Nongenital warts are a common presentation in general practice. Despite treatment according to evidence based guidelines, a significant proportion of common warts fail to resolve, becoming recalcitrant. This poses a problem in clinical management. The recommendations for treating recalcitrant warts are unclear and there is a wide range of second line treatments available. This article reviews t...

Bubbles In Tehran Stock Exchange

Recalcitrant vaginal trichomoniasis.

As Trichomonas vaginalis infects the urethra, Bartholin’s and Skene’s glands, as well as the vagina systemic treatment for trichomoniasis is recommended. The only group of drugs with safe, proved, systemic eYcacy is the imidazoles and the most widely used agent is metronidazole. When antimicrobial resistance arises it is likely to be shared across the group. Metronidazole resistant strains have...