Catalytic cracking of polystyrene pyrolysis oil: Effect of NbO and NiO/NbO catalyst on the liquid product composition.

The catalytic cracking of polystyrene pyrolysis oil was investigated over a NbO and a NiO/NbO catalyst in a fixed bed reactor. First, the pyrolysis of two different polystyrene feedstock (polystyrene foam and polystyrene pellet) was carried out in a semi-batch reactor, and the resulting polystyrene pellets pyrolysis oil was selected for catalytic cracking reaction because of its high liquid yield (85%). Catalytic cracking experiments were then performed at different temperatures (350-500 °C) using NbO or NiO/NbO catalyst.

Costs and outcomes associated with an aripiprazole add-on or switching open-label study in psychosis.

Health service providers increasingly need to consider not only the efficacy and safety of a therapy, but also its cost. Our hypothesis was that in our previously reported aripiprazole add-on or switching study, the improved outcomes would be associated with reduced costs. We here report data from this study, now to 52-week follow-up, with 27 total recruits (outpatients partially refractory or intolerant of their current antipsychotic regime).

Change in sexual dysfunction with aripiprazole: a switching or add-on study.

Sexual dysfunction and raised prolactin are common adverse effects of many anti-psychotics. Aripiprazole is an atypical anti-psychotic associated with a reduction in prolactin level in anti-psychotic-induced hyperprolactinemia. Our hypothesis was that switching from another anti-psychotic to aripiprazole would be associated with a reduction in sexual dysfunction.