H Production by Methane Oxy-Reforming: Effect of Catalyst Pretreatment on the Properties and Activity of Rh-CeZrO Synthetized by Microemulsion.

Green hydrogen introduction in hard-to-abate processes is held back by the cost of substituting steam reforming plants with electrolyzers. However, green hydrogen can be integrated in properly modified reforming processes. The process proposed here involves the substitution of steam reforming with oxy-reforming, which is the coupling of the former with catalytic partial oxidation (CPO), exploiting the pure oxygen coproduced during electrolysis to feed CPO, which allows for better heat exchange thanks to its exothermic nature.

Topography of cardiac ganglia in the adult human heart.

Published descriptions of the topography of cardiac ganglia in the human heart are limited and present conflicting results. This study was carried out to determine the distribution of cardiac ganglia in adult human hearts and to address these conflicts. Hearts obtained from autopsies and heart transplant procedures were sectioned, stained, and examined.

Pulmonary hypertension in polycythemia vera.

Thromboembolic events occur in about 27% of the patients with polycythemia vera and account for 31% of the deaths. These include cerebrovascular accidents, myocardial infarction, peripheral vascular occlusions, pulmonary infarctions, and venous thrombosis. We report two cases with polycythemia vera who presented with pulmonary hypertension in the absence of previous thromboembolic complications of any kind.

Comparison of recombinant hirudin and heparin as an anticoagulant in a cardiopulmonary bypass model.

Recombinant (r) hirudin is a potent thrombin-specific inhibitor originally derived from the natural hirudin of the leech (Hirudo medicinalis). We have studied the efficacy of r-hirudin compared to heparin in a dog model of cardiopulmonary bypass (CPB) surgery. Two administration regimens were used for r-hirudin: Group I received 1.

Fungal endocarditis caused by Pseudallescheria (Petriellidium) boydii in an intravenous drug abuser.

We present a case of fungal endocarditis in a 42-year-old man with a history of intravenous drug abuse who required aortic valve replacement for severe aortic insufficiency. Cultures of the resected valve grew Pseudallescheria boydii. The patient subsequently developed persistent endocarditis of the prosthetic valve with systemic embolism.