Land Resources of Alagirskii District As a Factor of Sustainable Development of the Agro-industrial Complex

The most important condition for the rational organization of the territory is the formation of a morphological appearance, which is distinguished by high productivity, ecological diversity, aesthetic appeal, and will satisfy sanitary and hygienic requirements. The use of land resources in the Alagirskii District of the Republic of North Ossetia-Alania and the development of measures for rational organization of the territory, with the creation of an effective system of land use, evaluation criteria of environmental reliability, social acceptability, economic efficiency and compliance with the legal regime of land use, are a necessary condition for the rational use of land. In this work, materials of land inventory for 2016–2018, data of the committee of land and property relations of the district, statistical data on the effectiveness of agricultural land were used. The developed data allows to establish the optimal ratio of natural ecosystems and agro-ecosystems for this natural-agricultural zone, to establish optimal areas of arable and forage lands that need improvement based on the landscape features of the territory for stability and development of agricultural production

Nomenclatural standards and genetic passports of potato cultivars bred at the Leningrad Research Institute for Agriculture “Belogorka”

In the present paper, the potato cultivars bred at the Leningrad Research Institute for Agriculture “Belogorka”, were taken as an example for demonstrating the results of elaboration of methodological approaches that are currently developed at the N.I. Vavilov Institute of Plant Genetic Resources (VIR) for the preparing of nomenclatural standards and their genotyping. In 2018, joint research of VIR scientists and breeders from the Leningrad Research Institute for Agriculture “Belogorka” began in the field of preparing nomenclatural standards for potato cultivars bred at this institute. Nomenclatural standards were prepared according to the ‘International Code of Nomenclature for Cultivated Plants’. Plant material for herbarium specimens was collected in the experimental field of the “Belogorka” Institute in 2018 by cultivar authors and handed over to the VIR Herbarium of cultivated plants, their wild relatives and weeds (WIR). The plant material included stems with inflorescences and later - tubers of 21 cultivars which were bred at the “Belogorka” Institute. Two precultivars undergoing State variety testing and three breeding clones were also included in this study. Just before herbarium preparation, the obtained plant material was photographed, plant morphological characters described, and the results compared with the description given in such official documents as the “Cultivar Questionnaireˮ and “Description of selection achievementˮ. The nomenclatural standards of 21 cultivars registered in the VIR Herbarium Database and transferred for conservation to the VIR herbarium, are published in this paper. Before herbarium preparation, the plant material was sampled for DNA extraction and subsequent genotyping and molecular screening. The genetic passports include information about the polymorphism of 10 chromosome-specific microsatellite loci, as well as the data on the presence/absence of diagnostic fragments of 12 markers of the 11 R-genes conferring resistance to diseases and pests, and for some cultivars – the information about their cytoplasm type. These genetic passports are valuable not only because different types of DNA markers were used in their preparing (SSR, SCAR and CAPS markers of the R genes; markers specific to different loci of the nuclear and organelle genomes), but first of all because of the material itself, as the DNA samples were isolated from the plants with the assigned status of nomenclatural standard for each particular cultivar. Based on the genetic passports data, trueness to type of the “Belogorka” cultivar samples obtained from various sources was verified

Burst wave lithotripsy – the new evolution stage of extracorporeal shock-wave lithotripsy

Urolithiasis is currently one of the most urgent problems in the world. Every eleventh worldwide inhabitant suffers from this disease. Previously, the only way to get rid of kidney stones and the urinary tract was open surgery, which was characterized by high trauma. Over the past decades, the development of technologies has made a significant contribution to the development of new methods of urolithiasis treatment. One of these methods is extracorporeal shock wave lithotripsy (ESWL). The first lithotripter Dornier HM-1 was produced in 1980. Subsequent models have got many changes, both in terms of ergonomics and power. The researchers noticed that the efficiency of stone crushing in the Dornier HM-1 lithotripter was higher than in newer models since the lower power provided the less intensive formation of cavitation bubbles that prevent the effective transit of subsequent waves through the stone. Nowadays, a new method of remote stone crushing is being developed based on low-amplitude high-frequency technology combined with ultrasonic propulsion, which is the main difference from traditional shock-wave lithotripters. The new technology of stone crushing is called «burst wave lithotripsy» (BWL). Currently, the data have been obtained that this method is more effective in terms of crushing quality and less traumatic

International alliance of Urolithiasis (IAU) guideline on percutaneous nephrolithotomy

The International Alliance of Urolithiasis (IAU) would like to release the latest guideline on percutaneous nephrolithotomy (PCNL) and to provide a clinical framework for surgeons performing PCNL. These recommendations were collected and appraised from a systematic review and assessment of the literature covering all aspects of PCNLs from the PubMed database between January 1, 1976, and July 31, 2021. Each generated recommendation was graded using a modified GRADE methodology. The quality of the evidence was graded using a classification system modified from the Oxford Center for Evidence-Based Medicine Levels of Evidence. Forty-seven recommendations were summarized and graded, which covered the following issues, indications and contraindications, stone complexity evaluation, preoperative imaging, antibiotic strategy, management of antithrombotic therapy, anesthesia, position, puncture, tracts, dilation, lithotripsy, intraoperative evaluation of residual stones, exit strategy, postoperative imaging and stone-free status evaluation, complications. The present guideline on PCNL was the first in the IAU series of urolithiasis management guidelines. The recommendations, tips and tricks across the PCNL procedures would provide adequate guidance for urologists performing PCNLs to ensure safety and efficiency in PCNLs

Largest ancient fortress of South-West Asia and the western world?:Recent fieldwork at Sasanian Qaleh Iraj at Pishva, Iran

The article presents recent works at Qale Iraj, near Varamin, Iran. My short contribution is on the Middle Persian ostraka found at the site

DECOMPRESSION SEMICONDUCTOR THERMOELECTRIC DESALINATOR WITH UV RADIATION

Objectives. The development of a decompression semiconductor thermoelectric desalinator with ultraviolet radiation.Methods. The design of a decompression semiconductor thermoelectric desalinator with ultraviolet radiation makes it possible to decrease the boiling points of seawater and the obtained fresh water and brine by changing the pressure in the desalinatior thus increasing the device’s energy efficiency.Results. The use of the designed decompression semiconductor thermoelectric desalinator with ultraviolet radiation practically reduces the boiling point of seawater, completely eliminating Joule's parasitic heat release. The Peltier thermoelectric effect of heating and cooling is completely preserved, bringing the desalinator efficiency coefficient up to almost 100% and improving its energy-saving characteristics as a whole.Conclusion. A decompression semiconductor thermoelectric desalinator with ultraviolet radiation can be used to produce fresh water and concentrated solutions from any aqueous solutions, as well as to treat wastewater from industrial enterprises with simultaneous bacterial and virus disinfection. The construction materials of the desalination device are environmentally friendly