Low-cost zeolite-based sorbents prepared from industrial perlite by-product material for Zn and Ni removal from aqueous solutions: synthesis, properties and sorption efficiency.

The conversion of waste/by-product materials into efficient sorbents is at the forefront of innovative remediation techniques. In the present study, the relationships among the synthesis conditions, physicochemical properties of synthesized sorbents and Zn and Ni removal efficiencies were studied in detail. Zeolite X, zeolite P, phillipsite, analcime, sodalite and cancrinite were synthesized from industrial perlite by-product material.

The Health Impact of Mineral Dust Air Pollution on the Global and Local Scale (on the example from Slovakia).

Background: A significant proportion of anthropogenic dust particles are present in the atmosphere. In particular, these include industrial and municipal dust, black carbon from fossil fuels and biomass. Mineralogical research of dust particles in the air is important for knowing their impact on public health in hazardous work environments (not only in Slovakia).

Who needs a permanent pacemaker after transcatheter aortic valve implantation?

Introduction: We aimed to identify predictive factors for pacemaker requirement and determine the rate of pacemaker dependency in a single centre patient group.

Methods And Reults: Out of 116 patients, who underwent transcatheter aortic valve implantation at our institution. Absence of atrial fibrillation at time of procedure, pulmonary hypertension, obesity and severity of aortic valve stenosis were predictive for the need of permanent pacemaker implantation after transcatheter aortic valve implantation.