The Features of Modern Agricultural Land-Tenure in Volyn Region

Розглянуто особливості сільськогосподарського землекористування в адміністративних районах Волинської області. Досліджено компонентну структуру земельного фонду області та особливості його територіальної диференціації. Запропоновано варіанти оптимізації використання земельних ресурсів залежно від впливу природно-географічних та соціально-економічних чинників. The essence of features of modern agricultural land-tenure are considered in the administrative districts of the Volyn region. The component structure of the landed fund and feature of his territorial differentiation is explored. The variants of optimization of the use of the landed resources are offered on a prospect depending on influencing of natural-geographical and socioeconomic factors.Роботу виконано на кафедрі географії ВНУ ім. Лесі Українк

Estimation of the Economic Potential of Volyn Region

Розглянуто методологічні засади дослідження чинників формування, використання та відтворення економічного потенціалу регіону та його складників для розробки методики та проведення аналізу виявлення резервів підвищення ефективності його використання. Проведено аналіз основних складників економічного потенціалу Волинської області.The essence of methodological principles of examined investigational factors of forming, use and recreation of economic potential of region and his components in particular with the purpose of development of methods and realization of analysis on the exposure of backlogs of increase of efficiency of his use. Analysed basic constituens of economic potential of the Volyn region

Effect of Natural Resources in the Specialization of Agricultural Production in Lutsk Region of Volyn Region

Розглянуто основні показники природно-ресурсного потенціалу Луцького району, зокрема: рельєф, ґрунтовий покрив, кліматичний режим у різні пори року. Досліджено залежність спеціалізації сільськогосподарського виробництва (галузей рослинництва та тваринництва) району від наявних природних умов та ресурсів. Розглянуто раціональне використання земель при максимальному залученні їх до обігу за основним цільовим призначенням (під сільськогосподарські угіддя, лісові масиви, ставки, рекреацію та ін.), а також створення найкращих умов для високої продуктивності і найменших втрат праці й затрат із урахуванням їх екології та охорони. Проаналізовано динаміку виробництва основних сільськогосподарських культур та поголів’я худоби в Луцькому районі з 1990 р. Визначено місце району серед інших районів області за показниками валового збору продукції рослинництва. Звернено увагу на проблеми розвитку сільського господарства. The main indicators of natural resource potential of Lutsk region, namely: relief, soil, climate regime in different seasons. The dependence of specialization of agricultural production (crop and livestock sectors) area of the existing natural environment and resources. District of Volyn Region. The rational use of soils according to their main setting (agricultural use, forest arrays, ponds, recreation) and creation of the most favourable terms for high productivity at the least losses of labour and money taking into account their ecology and guard are considered. The dynamics of production of major crops and livestock in Lutsk district since 1990. The place of the district, among other districts in terms of gross harvest of crop production. These problems of agricultural development.Роботу виконано на кафедрі географії СНУ ім. Лесі Українк

Volume parameters of some Diels - Alder reactions involving C=C, C=S, and N=N bonds

The effect of a hydrostatic pressure of up to 1000 kg cm-2 on the rate constants of the Diels - Alder reactions of maleic anhydride with 1,2,3,4-tetraphenylcyclopentadiene and with 6,13-dichloropentacene, of 4-phenyl-1,2,4-triazoline-3,5-dione with hexachlorocyclopentadiene, and of thiobenzophenone with isoprene was studied at 25°C. The volume parameters and ratios of the activation to reaction volumes make it possible to exclude electrostriction of the solvent during transition state solvation in all the reactions studied, which corresponds to the nonpolar nature of the transition state. © 2005 Springer Science+Business Media, Inc

Solvent effect on the heat of solution and partial molar volume of some non-electrolytes and lithium perchlorate

For several non-electrolytes and for lithium perchlorate the solvent effect on the heat of solution and partial molar volumes was studied. In the absence of the donor-acceptor and electrostatic interactions, clear proportionality can be seen only in the alkane solutions and these changes are defined by the non-alkane component. For solutions of π-acceptor (tetracyanoethylene) and v-acceptor (gallium chloride) in the presence of π,π-, π,V- and n,v-complexes, the relation between the changes of interaction energy and the values of the partial molar volumes can be seen. The maximum change in the value of partial molar volumes (up to 50cm mo1-1) was noted for lithium perchlorate in ten solvents. The volume change is proportional to the compressibility coefficients of the solvents and correlates less with the values of heat of solution and solvent permittivity. Copyright © 2006 John Wiley & Sons, Ltd

Ethnicity-specific distribution of <em>TRPM8</em> gene variants in Eurasian populations: signs of selection

The TRPM8 gene encodes the ion channel, which is a cold receptor in afferent neurons of the mammalian somatosensory system. We studied the frequency of haplotype distribution from six SNPs in the TRPM8 gene in Eurasian human populations, including Russians, Kazakhs and Chukchi. Four of the six SNPs are located in exon 7 (rs13004520, rs28901637, rs11562975, rs17868387), rs7593557 is in exon 11. These exons encode parts of the N-terminus, which is necessary for channel functioning in the plasma membrane of neurons. The rs11563071 is in exon 23 encoding part of the C-terminus. The primary difference in population distribution of haplotypes determines the SNP from exon 11 which leads to Ser419Asn substitution in protein. The most pronounced dif­ferences in the patterns of diversity and frequencies of haplotypes were observed between Chukchi and Russians. The frequency of major H1 haplotype encompassing the 419Ser gene variant differs in examined populations; 0.738 (Russians), 0.507 (Kazakhs) and 0.337 (Chukchi), p &lt; 0.001. The TRPM8 gene variants encoding 419Asn and carrying the minor alleles of rs28901637 (P249P) and rs11562975 (L250L) in exon 7 are characteristic of Asian populations. The frequency of all 419Asn variants in Chukchi is comparable to that in Africans, however, the minor allele frequencies of rs28901637, rs11562975 in Africans is low. Apparently in the process of human colonization of Eurasia, minor alleles of these SNPs diverged depending on rs7593557 structure in exon 11. We analyzed sequences of five TRPM8 mRNA isoforms extracted by researchers from different tissues. Sequence analysis demonstrates that they are transcribed from major H1 variant of the TRPM8 gene but contain different translation start codons, which are generated by alternative splicing from pro-mRNA

Promising source material for winter triticale breeding under the conditions of the Middle Urals

Background. The northern border of cereal crop cultivation passes through the territory of Sverdlovsk Province. Cultivars of winter triticale developed in the regions of Russia located to the south are grown there, but they die under unfavorable winter conditions. The breeding of this crop in local climate is at an early stage, so a study of source material for breeding new highyielding cultivars adapted to local conditions seems quite pertinent.Materials and methods. In 2017–2020, the Ural Research Institute of Agriculture in Yekaterinburg conducted a study of 78 winter triticale genotypes from 10 regions of Russia and 7 foreign countries. The seeds were obtained from the VIR genebank and breeding centers of Russia. Sowing was carried out in clean fallow on August 20–25 on 1 m2 plots in 3-4 repetitions, with the reference ‘Bashkirskaya korotkostebelnaya’ sown on every 10th plot. Plants were assessed for winter hardiness, yield, density of productive stems, plant height, ear length, number of spikelets and grains per ear, weight of 1000 grains, and ear productivity in accordance with published guidelines.Results. Cvs. ‘Privada’, ‘Tsekad 90’ and ‘Nemchinovsky 58’ combined high winter hardiness (70–81%) with resistance to damage by snow mold (15–20%), high density of productive stems (324–425 pcs/m2), and high yield (562–616 g/m2). They had high 1000 grain weight (45.4–49.1 g) and ear productivity (2.63–2.68 g). High yield (571–670 g/m2) and density of productive stems (285–436 pcs/m2 ) with reduced winter hardiness (62–72%) and resistance to snow mold (30–35%) was observed in cvs. ‘Sirs 57’, ‘Sotnik’, ‘Germes’, ‘Antey’, ‘Beta’, ‘Don’, and lines 1/1 and 8003 from Sweden

Dynamics of cognitive functions in treatment of alcohol-dependent patients

The article describes the results of dynamics of impaired cognitive functions of patients with alcohol dependence who received treatment with antipsychotics. Cognitive functions improve significantly faster in patients of the main group whose treatment included Risperidone, an atypical antipsychotic. There is insignificant positive dynamics of impaired cognitive functions in the group of patients who received Haloperidol as antipsychotic. The patients who received Risperidone have shown improved compliance, lack of negative attitude to the therapy provided as compared with the control group patients. Risperidone's most significant effects include improvement of disorganized psychic activity, recovery of active attention, dynamic and tempo parameters of activity, recovery of the capacity for unconditioned regulation of thinking and behavior, critical assessment

Beringia and the peopling of the Western Hemisphere

Did Beringian environments represent an ecological barrier to humans until less than 15 000 years ago or was access to the Americas controlled by the spatial–temporal distribution of North American ice sheets? Beringian environments varied with respect to climate and biota, especially in the two major areas of exposed continental shelf. The East Siberian Arctic Shelf (‘Great Arctic Plain’ (GAP)) supported a dry steppe-tundra biome inhabited by a diverse large-mammal community, while the southern Bering-Chukchi Platform (‘Bering Land Bridge’ (BLB)) supported mesic tundra and probably a lower large-mammal biomass. A human population with west Eurasian roots occupied the GAP before the Last Glacial Maximum (LGM) and may have accessed mid-latitude North America via an interior ice-free corridor. Re-opening of the corridor less than 14 000 years ago indicates that the primary ancestors of living First Peoples, who already had spread widely in the Americas at this time, probably dispersed from the NW Pacific coast. A genetic ‘arctic signal’ in non-arctic First Peoples suggests that their parent population inhabited the GAP during the LGM, before their split from the former. We infer a shift from GAP terrestrial to a subarctic maritime economy on the southern BLB coast before dispersal in the Americas from the NW Pacific coast

Склеродерма-панникулит: взгляд ревматолога

Difficulties in diagnosis and therapy of scleroderma-panniculitis (S-PN), one of the variants of the septal PN, are discussed. Feasibility of ultrasonography, magnetic resonance imaging of soft tissues and histological examination of the lesions in order to set the diagnosis of PN in time is considered. The clinical case of S-PN combined with antiphospholipid syndrome is presented.В статье обсуждаются трудности диагностики и терапии склеродермы-панникулита (С-Пн), одного из вариантов септального Пн. Рассматривается целесообразность использования УЗИ, магнитно-резонансной томографии мягких тканей и гистологического исследования уплотнений с целью своевременного выявления Пн. Представлено клиническое наблюдение сочетания С-Пн и антифосфолипидного синдрома