Ultraviolet disinfection of water in recirculating aquaculture system: a case study at sturgeon caviar fish farm

In this report, we present a practical example of ultraviolet (UV) water disinfection in an aquaculture facility for sturgeon caviar production. Among the methods of water disinfection in recirculating aquaculture systems, the technical approaches using ozonation or ultraviolet radiation in combination with other methods are the most effective. However, improper use of ozonation can result in excessive ozone concentrations that can cause serious harm to fish and be harmful to the environment and personnel. Therefore, we describe an example of a reagent-free ultraviolet water disinfection system. Preliminary results show that filtration followed by ultraviolet irradiation inactivates microorganisms in fish tank water. Total microbial count, total coliform bacteria, and E. coli (CFU/m3) did not exceed the permissible values. The described UV system provides an irradiance of 180 W/m2. For a pool with a water volume of 300 m3, bacteriological purity of the water was achieved with 480 W of UV-light

Social support during pregnancy

Maternal depression during pregnancy and the postpartum period affects approximately 15% of expectant mothers and 13% of new mothers within the first 6 months after delivery. Due to maternal outcomes such as low quality of life, high risk of suicide, and dysfunctional parenting, maternal depression remains one of the most serious mental health problems faced by women. It also disturbs the mother-child relationship, resulting in poor outcomes of infant / child behavioral, cognitive, and physical health. Therefore, it is important to identify predictive factors for postpartum depressio

Research of the dominant psycho-emotional states of university lecturers during the progression of the COVID-19 pandemic

The aim of the article was empirical research of the dominant psycho-emotional states of university lecturers during the progression of the COVID-19 pandemic. The article is devoted to an empirical study of the factor structure and the prevailing correlations between the psycho-emotional states of the respondents. Valid empirical methods with standardized questionnaires were used: the dominant coping strategy research method, the test of differentiation of emotional states, and the anxiety research method. The study’s empirical picture constructed. Psycho-emotional states were qualitatively interpreted, states were distinguished, and semantic psychological parameters were defined. The factor structure of the dominant psycho-emotional states of university lecturers was determined. The psycho-emotional state of F1 “Isolated activity”, which had the most intercorrelations and had the most significant (p≤.01) correlation with F4 “Pragmatic avoidance” (.344), was found to have the greatest factor load. It was empirically established and theoretically substantiated that the structure, variables, and interdependence of the factors of dominant psycho-emotional states were important components in solving issues of lecturers’ professional activity. It was noted that the findings may be useful for university administrations and pedagogical psychology researchers

Influence of UV Radiation on Physical and Biological Properties of Rapeseed in Pre-Sowing Treatment

The effect of ultraviolet radiation on pre-sowing treatment of seeds of the winter cultivar Lembke and cultivars treated with fungicides DK EXODUS, DK Exquisite and DK Exprit was studied. Experimental studies show a positive effect of UV irradiation in pre-sowing treatment of winter rapeseeds on seed vigour and germination, both when irradiated in region C (200-280 nm) and in region B (280-320 nm). It was found that UV radiation has a positive effect on the sowing qualities of winter rapeseeds varieties Lembke and DK EXODUS (treated with fungicides) when irradiated with a dose of 120 J/m2 : seed vigour increased by 11% in the variety DK EXODUS and 16.9% in the variety Lembke, germination on average by 13% compared to control samples. At doses of 250 and 500 J/m2 , a decrease in the sowing quality of seeds is observed. The main parameters of kinetic values of hydration were determined: moisture content and hydration rate. It was found that the rate of hydration increased sharply in the initial phase and gradually and slowly decreased in the middle and final phases of the hydration procedure, respectively, in order to achieve a saturated moisture content. Irradiated seeds at a dose of 120 J/m2 showed a higher rate of water absorption than the control, both in the early and later stages of the hydration procedure. It is established that UV-C irradiation changes the kinetics of water absorption by B. napus seeds at low doses of irradiation, causing faster penetration of water into the seeds and more efficient hydration of tissues, positively affecting sowing qualities and biometrics. It has been suggested that water uptake by UV-irradiated B. napus seeds causes excessive imbibition damage at higher doses of UV radiation, as the germination potential decreases and improves at low doses. No significant changes in biometric parameters were detected during UV irradiation of rapeseed varieties DK Exquisite and DK Exprit treated with fungicides and dyesInfluence of UV Radiation on Physical and Biological Properties of Rapeseed in Pre-Sowing Treatment. International Journal of Innovative Technology and Exploring Engineering, 10(4), pp. 217-223, 2021. DOI: 10.35940/ijitee.D8587.021042

Priority areas for development of scientific research: domestic and foreign experience

The collective monograph describes the priority areas for development of scientific research: domestic and foreign experience. The general issues of economic theory and history, economics and business management, finance and tax policy, modern management, public management and administration, etc. are considered. The publication is intended for scholars, teachers, postgraduate students, and students, as well as a wide readership

Design and baseline characteristics of the finerenone in reducing cardiovascular mortality and morbidity in diabetic kidney disease trial

Background: Among people with diabetes, those with kidney disease have exceptionally high rates of cardiovascular (CV) morbidity and mortality and progression of their underlying kidney disease. Finerenone is a novel, nonsteroidal, selective mineralocorticoid receptor antagonist that has shown to reduce albuminuria in type 2 diabetes (T2D) patients with chronic kidney disease (CKD) while revealing only a low risk of hyperkalemia. However, the effect of finerenone on CV and renal outcomes has not yet been investigated in long-term trials. Patients and Methods: The Finerenone in Reducing CV Mortality and Morbidity in Diabetic Kidney Disease (FIGARO-DKD) trial aims to assess the efficacy and safety of finerenone compared to placebo at reducing clinically important CV and renal outcomes in T2D patients with CKD. FIGARO-DKD is a randomized, double-blind, placebo-controlled, parallel-group, event-driven trial running in 47 countries with an expected duration of approximately 6 years. FIGARO-DKD randomized 7,437 patients with an estimated glomerular filtration rate >= 25 mL/min/1.73 m(2) and albuminuria (urinary albumin-to-creatinine ratio >= 30 to <= 5,000 mg/g). The study has at least 90% power to detect a 20% reduction in the risk of the primary outcome (overall two-sided significance level alpha = 0.05), the composite of time to first occurrence of CV death, nonfatal myocardial infarction, nonfatal stroke, or hospitalization for heart failure. Conclusions: FIGARO-DKD will determine whether an optimally treated cohort of T2D patients with CKD at high risk of CV and renal events will experience cardiorenal benefits with the addition of finerenone to their treatment regimen. Trial Registration: EudraCT number: 2015-000950-39; ClinicalTrials.gov identifier: NCT02545049

The Role of Public Administration Science in Increasing Civic Engagement in Ukraine

The article considers the problems of scientific comprehension of electronic participation from the point of view of public administration. Attention is paid to the highest form of e-democracy, namely the involvement of citizens in decision-making through ICT. The theoretical and methodological bases of research of electronic participation are defined - its levels, models, directions are analyzed. It is proposed to consider the process of involving citizens not only from a purely technological perspective, but taking into account a wider range of factors. The influence of social factors on the process of public involvement is characterized. Insufficient motivation of the citizens to interact with the government is highlighted as one of the most important obstacles to the development of e-democracy. The leading role in overcoming the existing problems is given to the fundamental science of public administration, whose task is not only to study the features of separated tools of e-participation, but also to determine strategic priorities for involving citizens in decision-making for sustainable development. The main strategy for increasing the interest of citizens in cooperation with the authorities and improving their decision-making skills in the information society is the formation of an efficient system of civic education

Implementation of the principle individual approach to pupils of pre-schools

In the article the question of the principle of individual approach to studentskindergarten. We analyzed the normative – legal documents, a number of scientificapproaches to this problem. Also the implementation of effective forms of individual approachto preschool children in schools.Key words: individualization, individual approach, personality, ability

КЛАСТЕРНИЙ ПІДХІД В СИСТЕМІ ОСВІТИ

У статті описані структура, переваги організації промислових освітніх кластерів, їх фундаментальні ідеї і етапи становлення, підтримки і обмеження розвитку. Основна увага приділяється залученню освітніх установ в кластери на прикладах країн, описаних в роботах відомого економіста Майкла Портера. Розглянуто рівні кластерного аналізу та класифікації кластерів на прикладі різних країн. У статті описується походження і опис освітніх кластерів за кордоном, якісний і кількісний склад освітніх кластерів в окремих країнах, а також дається рейтинговий аналіз національних паспортів освітніх кластерів європейських країн з точки зору позначення Європейської кластерної обсерваторії. Проаналізовано статті про освітні кластери на основі класифікації робіт по освітнім кластерам відповідно до Національної класифікації видів економічної діяльності.Semenova K.A.,Sakhno T.V.,Semenov A.O CLUSTER APPROACH IN EDUCATION SYSTEM / КЛАСТЕРНИЙ ПІДХІД В СИСТЕМІ ОСВІТИ. International periodic scientific journal «Modern scientific researches» Issue 12, Part 3. 2020. Р.21-30. ISSN 2523-4692. DOI 10.30889/2523-4692.2020-12-03-052. https://www.modscires.pro/index.php/msr/article/view/msr12-03-05