A high-performance C@NaVO nanowire electrode derived from the reconstruction of carbon quantum dots.

Vanadate electrodes are potential candidates for lithium-ion batteries (LIBs) due to their large theoretical specific capacity. However, their easy dissolution in the electrolyte, large structural changes, low conductivity and capacity decay during cycling hinder their further application. Herein, a lithium-ion battery electrode of NaVO (NVO) nanowires covered with a carbon film and formed by the reconstruction of carbon quantum dots (CDs) was obtained using an capping strategy.

[Surgical correction of nasal septum with the use of Perfoost allografts].

New partially demineralized Perfoost allografts were used for the treatment of nasal septum defects in 16 patients admitted to the Research and Clinical Otorhinolarygological Centre, Federal Healthcare and Social Development Agency, between January 2007 and November 2008. The length of the follow-up period varied from 6 months to 1 year 10 months. The plastic material manufactured in the form of plates of different size was obtained from the bank of autografts based at the Central Institute of Traumatology and Orthopedics.

[Correction of mitral valve insufficiency in the incomplete form of atrioventricular canal].

Correction of the incomplete atrioventricular canal is considered to be a routine operation leading to mortality no more than 5%. Significant insufficiency of the atrioventricular (AV) valve worsens prognosis and increases mortality up to 30%. From 1989 to 1999 the Research Center of Cardiovascular Surgery performed 151 operations for this defect in patients aged 3 months to 50 years, which showed general mortality rates of 8.