First detection and diversity of astroviruses in wild migratory birds of Sakhalin Island, North Pacific.

Researchers have identified Avastrovirus as a significant genus of bird viruses, linked to various avian diseases such as enteritis, growth retardation, nephritis and hepatitis. These infections can cause substantial economic losses in agrocultureand have a widespread impact on global food production. Although there have been numerous studies on these viruses, most of them-mainly focuses on poultry.

[The technology of induction of physiological ketosis in asthenia of various origins and decreased resistance to cognitive and physical activity].

Objective: To assess the possibility of achieving physiological ketosis with oral administration of beta-hydroxybutyrate salts and, if ketosis is achieved, to assess its effect on cognitive functioning in patients with brain dysfunction during the recovery period after a somatic disease.

Material And Methods: The study included 86 patients with complaints of asthenic manifestations (ICD-10 diagnoses F06; F07; R53). Half of the patients were included in the study group taking beta-hydroxybutyrate salts, and the other half were included in the control group taking placebo.

Symplectic Geometry of Teichmüller Spaces for Surfaces with Ideal Boundary.

A hyperbolic 0-metric on a surface with boundary is a hyperbolic metric on its interior, exhibiting the boundary behavior of the standard metric on the Poincaré disk. Consider the infinite-dimensional Teichmüller spaces of hyperbolic 0-metrics on oriented surfaces with boundary, up to diffeomorphisms fixing the boundary and homotopic to the identity. We show that these spaces have natural symplectic structures, depending only on the choice of an invariant metric on .

The venom of Habrobracon hebetor induces alterations in host metabolism.

The ability of parasitic wasps to manipulate a host's metabolism is under active investigation. Components of venom play a major role in this process. In the present work, we studied the effect of the venom of the ectoparasitic wasp Habrobracon hebetor on the metabolism of the greater wax moth host (Galleria mellonella).