[Organization of children's otorhinolaryngological care in conditions of biological risks: international experience].

The COVID-19 pandemic has spurred the introduction of new devices and technologies into the organization of otorhinolaryngological care, the development of safety measures and clinical work protocols in order to increase the safety of doctors and patients. Virtual outpatient clinics have been integrated into the pediatric and basic outpatient services, the potential of which for pediatric otolaryngology is considered quite significant. In otorhinolaryngological practice, the transition to the expanded use of telemedicine technologies (individual gadgets for examining ENT patients, including a direct access otoscope connected to an otolaryngologist's computer) was especially significant.

[Features of the appeal for pediatric otorhinolaryngological care in conditions of increased biological risks].

The combined effect of close contact between child patients and otorhinolaryngologists, as well as the practice of aerosol-generating procedures, justify the need to take prompt organizational measures to reduce risks in the provision of pediatric otorhinolaryngological care in conditions of increased biological risks. In the pediatric ENT community, these adaptations have resulted in: judicious distribution of care to treat the most severe conditions, minimizing the risk of long-term consequences, ensuring the safety of child patients and healthcare workers through better communication methods, changing procedural precautions, the rapid introduction of telemedicine for diagnosis and treatment of patients, as well as the development of protective protocols to limit exposure to aerosol-generating procedures or manipulations to reduce the risk of exposure to a high viral load.

Findings of new phytoplankton species in the Barents Sea as a consequence of global climate changes.

Over the past few decades, the Earth's climate has been characterized by a stable increase in temperature, which in many regions leads to a change in the composition of flora and fauna. A striking manifestation of this process is the appearance in ecological communities of new, uncharacteristic for them, species of animals and plants. One of the most productive and at the same time the most vulnerable in this respect are the marine ecosystems of the Arctic.

Complete mitochondrial genomes of Gritzenko's charr Salvelinus gritzenkoi and Miyabe charr Salvelinus malma miyabei and their interpretation regarding intraspecific taxonomy.

Background: Salvelinus is one the most species-rich genera of salmonids (Salmoniformes: Salmonidae), and mitogenomic sequence data have served as a rich source of information for resolving fish phylogenies and identifying new charr species. However, current reference databases contain limited mitochondrial genome information on narrow-ranged, endemic charrs with disputable origin and systematic status. More comprehensive mitochondrial genome-based phylogenetics will help enhance understanding of the relationship and delineate charr species.