Proton and Oxygen-Ion Conductivities of Hexagonal Perovskite BaInAlZrO.

The hexagonal perovskite Ba5In2Al2ZrO13 and In3+-doped phase Ba5In2.1Al2Zr0.9O12.

Dimer Radical Anions of Polyfluoroarenes. Two More to a Small Family.

While there is a body of experimental data concerning dimers formed by an aromatic molecule and its radical cation, information on the corresponding dimer radical anions (DRAs) is scarce. In this work, evidence for the formation of the DRAs of decafluorobiphenyl and 4-aminononafluorobiphenyl has been obtained by the optically detected electron paramagnetic resonance and the time-resolved magnetic field effect techniques. Theoretical investigation (DFT B3LYP-D3/6-31+G*) of these DRAs and the DRAs of octafluoronaphtalene and 1,2,4,5-tetrafluorobenzene previously detected by Werst has been undertaken to gain greater insight into the structure of the polyfluoroarene DRAs.

[Characteristics of postoperative cerebral dysfunction depending on the type and position of the implanted prosthetic heart valve].

Aim: To study the prevalence and structure of postoperative cerebral dysfunction depending on the type and position of the implanted prosthetic heart valve in patients who underwent surgery for the acquired heart valve disease.

Material And Methods: The study included 115 patients (70 men and 45 women; 64 [56; 72] years old), who underwent elective replacement or repair surgery for the acquired heart valve disease.

Results And Conclusion: The postoperative cerebral dysfunction was diagnosed in 40.

[Perioperative stroke in heart valve surgery: pathogenesis, clinical findings, diagnosis, prevention, treatment].

Aim: To study risk factors, characteristics of clinical symptoms and diagnosis, and possibilities of prevention of perioperative stroke and other clinical types of cerebral dysfunction in main types of heart valve surgery.

Material And Methods: The study included 83 patients, aged 63 (54; 70) years, undergoing heart valve surgery with cardiopulmonary bypass.

Results: Postoperative cerebral dysfunction was diagnosed in 37.

[Modern strategies of protection of hypoxic-ischemic brain damage].

Nowadays, there are two complementary approaches to treatment of patients with ischemic stroke: reperfusion and neuroprotection. The main purpose of neuroprotection is to intervene ischemic cascade at every stage of the pathological process and thus avoid the death of nerve cells and expand the therapeutic window for reperfusion therapy. The use of drugs with neurotrophic, antioxidant and neuroregenerative effects is pathogenically explained at all stages of post stroke rehabilitation.