FEATURES OF LATE PRETERM INFANTS IN THE CONDITIONS OF THE REGIONAL PERINATAL CENTER

The purpose of the study was to investigate the main factors predisposing to the birth of children at gestational age of 34–36 weeks, the features of the course of the neonatal period, the structure of morbidity and mortality in the conditions of the regional perinatal center. Material and methods. A retrospective analysis of 380 medical records of an inpatient patient of the Regional Perinatal Center of State Novosibirsk Regional Clinical Hospital born on a gestational age of 34–36 weeks for 2017–2018 was performed. Results and discussion. All women with premature late delivery had a burdened somatic and/or obstetric-gynecological history. 70 % of women were delivered by surgery. The anthropometric characteristics of late preterm infants in 85 % of cases corresponded to gestational age, in most of them the neonatal period proceeded with the development of respiratory disorders, hyperbilirubinemia, and low tolerance to enteral nutrition. Children with less gestational age needed respiratory support for a longer time. Due to the difficult condition at birth, about 40 % of the children were transferred from the maternity ward to the intensive care unit of the newborn. A quarter of late premature infants received medical care exclusively in a maternity hospital. The mortality rate was 1 %. Thus, late premature babies are a special category of newborns, when nursing which it is necessary to carry out timely diagnosis of pathological conditions, as well as the prevention of adaptation disorders, especially in the early neonatal period

The PROSPECT Reactor Antineutrino Experiment

The Precision Reactor Oscillation and Spectrum Experiment, PROSPECT, is designed to make both a precise measurement of the antineutrino spectrum from a highly-enriched uranium reactor and to probe eV-scale sterile neutrinos by searching for neutrino oscillations over meter-long baselines. PROSPECT utilizes a segmented $^6$Li-doped liquid scintillator detector for both efficient detection of reactor antineutrinos through the inverse beta decay reaction and excellent background discrimination. PROSPECT is a movable 4-ton antineutrino detector covering distances of 7m to 13m from the High Flux Isotope Reactor core. It will probe the best-fit point of the $\bar\nu_e$ disappearance experiments at 4$\sigma$ in 1 year and the favored regions of the sterile neutrino parameter space at more than 3$\sigma$ in 3 years. PROSPECT will test the origin of spectral deviations observed in recent $\theta_{13}$ experiments, search for sterile neutrinos, and address the hypothesis of sterile neutrinos as an explanation of the reactor anomaly. This paper describes the design, construction, and commissioning of PROSPECT and reports first data characterizing the performance of the PROSPECT antineutrino detector.Comment: 30 pages, 33 figures; updated with journal revision and referenc