The occurrence of extreme monthly temparatures and precipitation in two global regions

There has been a lot of focus on the occurrence of extreme weather events and a possible connection to climate change and variability. Much of this work has been related to individual events, rather than for long periods of time. This work will examine the occurrence of extreme conditions in the monthly temperature and precipitation for two geographically disparate regions of the Northern Hemispher

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 specificity of the climatic evolution of soils in the southern part of Eastern Europe in the second half of the Holocene

The analysis of characteristic features of chernozems and chestnut soils of different ages that have been formed in the south of the East European Plain in the past 5000 years attests to the spatial and temporal heterogeneity of the rate and direction of pedogenetic processes, i.e., to the metachronous development of the soil cove

Effect of Lignosilicon on the Content and Antioxidant Activity of the Polyphenols of Buckwheat Fagopyrum esculentum Moench

Lignin preparations, introduced into soil jointly with buckwheat Fagopyrum esculentum Moench, variety 'Aiva' (cultivated throughout Latvia) seeds during the sowing in quantities of 20 kg ha-1 and 40 kg ha-1, exerted a favourable effect on the ned in alcohol extracts from the biomass of different morphological parts of buckwheat, were represented mainly by rutin. The content of rutin in the ethanol extracts from the biomass of flowers with bract reached the maximum values in the phase of accomplishing blooming - beginning of fruit formation to be 2.74% in terms of dry mass (exceeding the rutin content development of plants and the synthesis of flavonoids in flowers with bract. Flavonoids, determin the control by 65%) in the variant with 40 kg ha-1 of Lignosilicon. Lignin preparations favoured the increase in the radical scavenging capacity of the alcohol extracts of the biomass of flowers with bract of buckwheat, as well as grain and hulls. The increment of the buckwheat grain crop, in comparison with the control on the background of 40 kg ha-1 of lignin, was 12%, and that on the background of 20 kg ha-1 and 40 kg/ha of Lignosilicon 10% and 15%, respectively

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

Reconstruction of Zigzag Graphene Edges: Energetics, Kinetics and Residual Defects

Ab initio calculations are performed to study consecutive reconstruction of a zigzag graphene edge. According to the obtained energy profile along the reaction pathway, the first reconstruction step, formation of the first pentagon-heptagon pair, is the slowest one, while the growth of an already nucleated reconstructed edge domain should occur steadily at a much higher rate. Domains merge into one only in 1/4 of cases when they get in contact, while in the rest of the cases, residual defects are left. Structure, energy and magnetic properties of these defects are studied. It is found that spontaneous formation of pairs of residual defects (i.e. spontaneous domain nucleation) in the fully reconstructed edge is unlikely at temperatures below 1000 K. Using a kinetic model, we show that the average domain length is of several $\mathrm{\mu}$m at room temperature and it decreases exponentially upon increasing the temperature at which the reconstruction takes place.Comment: 5 pages, 4 figure

A comparison of bioclimatic potential in two global regions during the late twentieth century and early twenty-first century

This work will evaluate the growing season conditions using indexes that combine growing season temperature and precipitation such as the hydrothermal coefficient (HTC) and the bioclimatic potential (BCP). Also, the interannual variability of these indexes in both regions was examined. In the Belgorod region, the increase in temperature combined with little change in precipitation produced mixed results in interpreting these indexe

Ultrasound examination in the diagnosis of fetal macrosomia

Ultrasound examination in obstetrics is a method of screening of pregnant women including identification of fetal macrosomia. Diagnosis of macrosomia is extremely important, along with other indications the conclusion about the presence of a large fetus may affect the tactics of giving birth. Gestational diabetes (GD) is a known clinical risk factor for fetal macrosomia and accounts for the majority of all types of diabetes observed during pregnancy. In women with GD fetal macrosomia is the main complication, which often together with others serves as an indication for a planned cesarean section in order to reduce potentially possible perinatal complications, as macrosomia of diabetic origin is characterized by disproportional distribution of subcutaneous adipose tissue in the fetus with predominant localization in the upper half of the trunk, which increases the probability of dystocia of the shoulders and damage to the brachial plexus. In perinatal morbidity and mortality the major proportion is presented by newborns weighing more than 4 kg but there is insufficient data in the literature on how prenatal ultrasound should be monitored in cases of suspected macrosomia in the fetus, especially in patients without diabetes. At the moment, to determine the estimated weight of the fetus, the formulas created more than 30 years ago are used and their accuracy is not always high. The difficulty is caused by the lack of data on the diagnostic accuracy of macrosomal markers. A search is being made for additional parameters capable of increasing the diagnostic value of ultrasound method for determining the estimated weight of the fetus