Digital receivers for low-frequency radio telescopes UTR-2, URAN, GURT

This paper describes digital radio astronomical receivers used for decameter and meter wavelength observations. This paper describes digital radio astronomical receivers used for decameter and meter wavelength observations. Since 1998, digital receivers performing on-the-fly dynamic spectrum calculations or waveform data recording without data loss have been used at the UTR-2 radio telescope, the URAN VLBI system, and the GURT new generation radio telescope. Here we detail these receivers developed for operation in the strong interference environment that prevails in the decameter wavelength range. Data collected with these receivers allowed us to discover numerous radio astronomical objects and phenomena at low frequencies, a summary of which is also presented.Comment: 24 pages, 15 figure

THE FEATURES OF HUMORAL IMMUNE RESPONSE FOR ANTIGENS OF OPPORTUNISTIC MICROORGANISMS IN CASE OF PHARYNX TONSILS HYPERTROPHY IN INFANTS AND PRESCHOOL CHILDREN

Abstract. Features of IgG and IgE immune response for opportunistic microbes of pharynx biotope in children with pharyngeal lymphoid hypertrophy and recurrent acute respiratory infections have been studied (base group). The ob tained data were compared with similar results for healthy children. It was shown that in children of base group in biotope of pharynx prevailed S. pyogenes, S. pneumoniae, S. mutans, P. vulgaris and C. albicans. It was demonstarted that in children of base group the IgG immune response was mainly induced by S. pyogenes, S. pneumoniae, B. catharrhalis and H. influenzae; and the IgE immune response — by S. pyogenes, S. pneumoniae, S. aureus and H. influenzae. The role of polyclonal induction of immune response to S. pneumoniae in pathogenesis of pharyngeal lymphoid hypertrophy and recurrent acute respiratory infections in children of early and preschool age has been detected

Stress in student activities

В роботі встановлено, що основними причинами появу стресу у студентів є значні навчальні навантаження, які з’являються через велику кількість завдань з різних навчальних дисциплін. Все це призводить до поспіху і постійної нестачі часу. Найчастіше студенти відновлюють сили міцним сном і спілкуванням з друзями та близькими людьми.The paper found that the main cause of stress in students is a signi cant workload that appear because of the large number of tasks from different disciplines. All this leads to haste and constant lack of time. Most students soundly restore power and communicate with friends and loved ones