Influence of long- and short-term climatic changes on chernozem soils : Central Chernozem region of Russia

The main purpose of this article is the identification of forest-steppe and steppe chernozem soils (Eastern European Mollisols) reactions to climate change with different periodicitiesyesBelgorod State National Research Universit

Impact monitoring of mining enterprises of Kursk magnetic anomaly on hydro ecological river situation of the Belgorod region

The results of contrastive analysis of hydrochemical state of surface water bodies exposed to the impact of mining enterprises, by way of example of small rivers of the Belgorod region, according to the results of exploration carried out in the years 2009-201

Regional manifestations of changes in atmospheric circulation in the Central Black Earth region : by the example of Belgorod region

The aim of this work is the estimation of the reasons of occurrence of the area of dangerous hydrometeorological phenomena and the analysis of the circulation processes, leading to the establishment of extreme weather conditions in the region. Using the calendar of the consistent changes of elementary circulation mechanisms and daily observations of the weather in the south of Central Black Earth region (by the example of Belgorod region).yesBelgorod State National Research Universit

Current hydroecological situation of the Starooskolsko-Gubkinsky mining region on the example of the Oskolets River

The results of the hydroecological study of the small Oskolets river in the area of influence of mining enterprises are presented. It is shown that the residential industrial flow of Gubkin city has a leading influence on the hydrochemical situation. Discharges of drainage waters made by the Lebedinsky mining and processing plant have a definite impact on the hydro-ecological situation with respect to the content of fluorine and lead compounds, and occasionally with respect to nitrogen compound

Возможности выявления и коррекции сниженной вариабельности ритма сердца у больных ишемической болезнью сердца в сочетании с депрессиями в условиях кардиологического отделения

 Aim. To identify the presence and the correction method of decreased heart rate variability (HRV) in patients with chronic coronary artery disease (CAD) and comorbid depressive disorders (DD).Materials and methods. 79 patients with CAD (with class II–III angina pectoris and myocardial infarction that occurred more than 6 months ago) were divided into two groups. The first group included 50 CAD patients with depression, and the second – 29 CAD patients without depression. 17  patients received agomelatine (1st subgroup), 12 patients received fluvoxamine and fluoxetine (2nd subgroup), and 21 patients refused to take antidepressants (3rd subgroup). Initially and after 6 months, the HRV parameters were evaluated using the SCHILLER MT-200 Holter-ECG apparatus (Switzerland).Results. A significant decrease in HRV was revealed in the patients with depression compared to the patients without it: SDNN (96 [83; 117] ms vs. 110 [98; 127] ms; p = 0.02), SDANN (80.5 [67; 94] ms vs. 91 [79; 102] ms; p = 0.03), SDNNindex (46.5 [38; 56] ms vs. 55 [48; 66] ms; p = 0.006), rMSSD (29 [23; 38] ms vs. 33 [29; 45] ms; p = 0.04), pNN50% (3.9 [2.4; 5,7] vs. 5.7 [2.9; 12.6]; p = 0.03). Initially, the 1st, 2nd, and 3rd subgroups did not differ in all HRV parameters. Against the background of antidepressant therapy, there  were significant differences between the 2nd and 3rd subgroups in SDNN  (110 [96; 140] ms vs. 85.5 [75; 103] ms; p = 0.008), SDANN (93.7 ± 22.9 ms vs. 72.7 ± 21.4 ms; p = 0.02), SDNNindex (55.8 ± 16.4 ms vs. 42.4 ± 10.8 ms; p = 0.01) and pNN50% (7.8 ± 6.7 vs. 3.6 ± 1.8; p = 0.02), as well as between the 1st and 3rd subgroups (SDANN (93.6 ± 28.5 ms vs. 72.7 ± 21.4 ms; p = 0.03), rMSSD (36.5 [28.5; 51] ms vs. 26.5 [25; 32] ms; p = 0.02)).Conclusion. In patients with CAD with comorbid DD, significant impairment of heart rhythm regulation occurs due to a pronounced decrease in HRV, which can seriously affect the course and prognosis of CAD. Prescribing modern antidepressants can be used as a method of correcting autonomic  dysfunction in patients with CAD with comorbid depression.  Цель. Выявить наличие и способ коррекции сниженной вариабельности ритма сердца (ВРС) у больных c хронической ишемической болезнью сердца (ИБС) в  сочетании с депрессивными расстройствами (ДР).Материалы и методы. Больные с ИБС (n = 79, со стенокардией напряжения II–III функциональных классов и  перенесенным инфарктом миокарда давностью более 6  мес), распределены на две группы: 50 больных ИБС с депрессивными расстройствами (первая группа) и 29 больных ИБС без депрессивной симптоматики (вторая группа). Антидепрессант агомелатин получали 17 больных  (1-я подгруппа), 12 больных – флувоксамин, флуоксетин (2-я  подгруппа). От приема антидепрессантов отказался 21  больной (3-я подгруппа). Исходно и через 6 мес проведена оценка параметров ВРС с помощью аппарата SCHILLER MT-200 HolterECG (Швейцария).Результаты. У пациентов с депрессией в сравнении с  пациентами без нее выявлено значимое снижение ВРС: SDNN (96 [83; 117] мс vs 110 [98; 127] мс, р = 0,02), SDANN (80,5 [67; 94] мс vs 91 [79; 102] мс, р = 0,03), SDNNindx (46,5 [38; 56] мс vs 55 [48; 66] мс, p = 0,006), rMSSD (29 [23; 38] мс vs 33 [29; 45] мс, p = 0,04), pNN50% (3,9 [2,4; 5,7] vs 5,7 [2,9; 12,6], р = 0,03). Исходно 1, 2, 3-я подгруппы по всем  параметрам ВРС не различались. На фоне терапии  антидепрессантами между 2-й и 3-й подгруппами появились существенные отличия по SDNN (110 [96; 140] мс vs 85,5 [75;  103] мс, р = 0,008), SDANN (93,7 ± 22,9 мс vs 72,7 ± 21,4 мс, р = 0,02), SDNNindx (55,8 ± 16,4 мс vs 42,4 ± 10,8 мс, р = 0,01) и pNN50% (7,8 ± 6,7 vs 3,6 ± 1,8, р = 0,02), а также между 1-й и 3-й подгруппами (SDANN 93,6 ± 28,5 мс vs 72,7 ± 21,4 мс, р = 0,03), rMSSD (36,5 [28,5; 51] мс vs 26,5 [25; 32] мс, p = 0,02)).Заключение. У больных ИБС при наличии ДР возникает  серьезное нарушение регуляции сердечного ритма  вследствие выраженного снижения показателей ВРС, что  может серьезно повлиять на течение и прогноз коронарной болезни. Назначение современных антидепрессантов  можно использовать в качестве способа коррекции вегетативной дисфункции у больных ИБС в сочетании с  депрессией.

Transformations of functions of consumer demand in postindustrial economy

The authors of the paper analyze nonprice determinants of consumer demand in the conditions of consumer economy, the main role among which belongs to institutional factors reflecting the influence of institutions on the norms and rules of consumer choice; the authors suggest a methodical approach to the definition of quality as the factor of consumer behavior based on the assessment of integral quality as a radius-vector of n-dimensional space which characterizes the aggregate of homogeneous characteristics of quality for different categories of consumers of goods, works or services the quantity of which is determined by the structure of consumer society of the given product

A comparison of the characteristics of extreme drought during the late 20 th and early 21st centuries over Eurasia and North America

The atmospheric general circulation character during summer droughts over Eastern Europe / Western Russia and North America from 1970-2020 is examined here. A criterion to examine atmospheric drought events encompassed the summer season was used to determine which years were driest using precipitation, evaporation, and areal coverage. The relationship between drought and atmospheric character using the Dzerzeevsky climatic classification scheme, atmospheric blocking, teleconnections, and information entropy are used to study the atmospheric dynamic

Cryptic Diversity in Paramecium multimicronucleatum Revealed with a Polyphasic Approach

Paramecium (Ciliophora) systematics is well studied, and about twenty morphological species have been described. The morphological species may include several genetic species. How-ever, molecular phylogenetic analyses revealed that the species diversity within Paramecium could be even higher and has raised a problem of cryptic species whose statuses remain uncertain. In the present study, we provide the morphological and molecular characterization of two novel Paramecium species. While Paramecium lynni n. sp., although morphologically similar to P. multimicronucleatum, is phylogenetically well separated from all other Paramecium species, Paramecium fokini n. sp. appears to be a cryptic sister species to P. multimicronucleatum. The latter two species can be distinguished only by molecular methods. The number and structure of micronuclei, traditionally utilized to discriminate species in Paramecium, vary not only between but also within each of the three studied species and, thus, cannot be considered a reliable feature for species identification. The geographic distribution of the P. multimicronucleatum and P. fokini n. sp. strains do not show defined patterns, still leaving space for a role of the geographic factor in initial speciation in Paramecium. Future findings of new Paramecium species can be predicted from the molecular data, while morphological characteristics appear to be unstable and overlapping at least in some species

Climatic factors affecting the reclamation of disturbed lands in the area of the KMA development

The water and wind erosion is the most significant factor of land degradation taking into account natural factors, the actual occurrence and natural-economic significance of the effects. The conditions for the deformation of technogenic slopes during spring snowmelt are adverse, and the threat of the erosion process on the overburden dumps at the beginning of the XXI century in the spring is not expresse