Obtaining and Properties of a Photocatalytic Composite Material of the "SiO-TiO" System Based on Various Types of Silica Raw Materials.

Compositions and technology for obtaining a photocatalytic composite material (PCM) by deposition of titanium dioxide particles synthesized by the sol-gel method on a silica support of various types (microsilica, gaize and diatomite) have been developed. The properties (chemical and mineral composition, dispersion, specific surface area, porosity, ζ-potential, acid-base properties, and microstructure) of microsilica, gaize and diatomite were studied to assess the effectiveness of using a photocatalytic agent as a carrier. In terms of specific viscosity (η = 45), the concentration of the precursor (tetrabutoxytitanium-TBT) is set at 22 vol.

[Hypophyseal damage in persons with cerebrocranial injuries and who died in the hospital].

The pituitary was examined in patients with craniocerebral injuries who died in hospital in various periods after treatment. Control group consisted of victims died at the site of accident. The results indicate the significance of examining the pituitary in craniocerebral injuries for the diagnosis of thanatogenesis, particularly in patients died in hospital.

[Morphological changes in lungs of patients with spinal injuries died in hospital].

Morphological characteristics of changes in the spine and lungs in patients with spinal injuries dead in hospital are described. Spinal edemas were detected in all cases. Edemas were found even in subjects dead at the place where the injury was inflicted.

[Morphologic changes in spinal cord of patients with spinal injuries who died in hospital].

Morphologic changes in the spine have been investigated in patients with spinal injuries who died in hospital. The incidence of injuries has been evaluated as 9.3% of mechanical injuries.