bluuebunny/crossref_metadata_2025 huggingface dataset:
Characterization of holmium(iii)-acetylacetonate complexes derived from therapeutic microspheres by infrared ion spectroscopy
Authors: Houthuijs Kas J. , Martens Jonathan , Arranja Alexandra G. , Berden Giel , Nijsen J. Frank W. , Oomens Jos
Published: June 2020

Microspheres containing holmium radionuclides and acetylacetonate are novel anti-tumour agents in cancer therapies. We employ infrared ion spectroscopy to analyze the composition and coordination geometries of the species detected in dissolved microspheres.
Thermodynamic data of adsorption reveal the entry of CH4 and CO2 in a smectite clay interlayer
Authors: Grekov Denys I. , Suzuki-Muresan Tomo , Kalinichev Andrey G. , Pré Pascaline , Grambow Bernd
Published: June 2020

The accessibility of smectite interlayer spacing for the entry of CH4 and CO2 molecules significantly increases gas adsorption capacity in comparison to clays in a fully collapsed state.
Solvent effects on Li ion transference number and dynamic ion correlations in glyme- and sulfolane-based molten Li salt solvates
Authors: Shigenobu Keisuke , Dokko Kaoru , Watanabe Masayoshi , Ueno Kazuhide
Published: June 2020

Ion–solvent interactions and Li ion coordination structure have a significant impact on dynamic ion correlations and Li ion transference number of molten Li salt solvate electrolytes.
Characterization of the simplest sulfenyl thiocyanate: isomers, spectroscopy and implications of astrophysical and biological relevance
Authors: Benabdelkrim Aicha , Tourchi Ala Eddine , Hammoutène Dalila , Ben Yaghlane Saida , Abdallah Hassan H. , Linguerri Roberto , Hochlaf Majdi
Published: June 2020

Several isomers of the simplest sulfenyl thiocyanate, HSSCN, are predicted. They can be used as prototypes of SS-containing biological entities and can be detected in astrophysical media.
Hydration of sulfobetaine dizwitterions as a function of alkyl spacer length
Authors: Hammond Oliver S. , Moura Leila , Level Gaelle , Imberti Silvia , Holbrey John D , Blesic Marijana
Published: June 2020

Strong, electrostatically-directed hydration was observed for tethered sulfobetaine dizwitterions, with a hydrophilic regime observed even with a hexyl inter-zwitterion spacer.
Endoplasmic reticulum stress: an arising target for metal-based anticancer agents
Authors: King A. Paden , Wilson Justin J.
Published: June 2020

Metal anticancer agents are rapidly emerging as selective, potent therapeutics that exhibit anticancer activity by inducing endoplasmic reticulum stress.
Medical micro/nanorobots in complex media
Authors: Wu Zhiguang , Chen Ye , Mukasa Daniel , Pak On Shun , Gao Wei
Published: June 2020

This article introduces how various complex media impact the propulsion of micro/nanorobotics and highlights the emerging technological approaches to enhance the locomotion in complex environments toward practical medical applicationsin vivo.
Adipato bridged novel hexanuclear Cu(ii) and polymeric Co(ii) coordination compounds involving cooperative supramolecular assemblies and encapsulated guest water clusters in a square grid host: antiproliferative evaluation and theoretical studies
Authors: Nath Hiren , Dutta Debajit , Sharma Pranay , Frontera Antonio , Verma Akalesh K. , Barceló-Oliver Miquel , Devi Mary , Bhattacharyya Manjit K.
Published: June 2020

Novel adipato bridged Cu(ii) and Co(ii) complexes synthesized by considering cytotoxicity, apoptosis, ROS generation, molecular docking and pharmacophore features.
Eco-friendly upconversion of limestone into value-added calcium formate
Authors: Gunasekar Gunniya Hariyanandam , Park Hongjin , Padmanaban Sudakar , Yoon Sungho
Published: June 2020

We first report the heterogeneous conversion of CaCO3 into calcium formate (CF) using an efficient bisphosphine-based Ru catalyst. The catalyst can be reused and the generated CF can be isolated in a very pure form.
Enhancement of inflection point focusing and rare-cell separations from untreated whole blood
Authors: Lee Dongwoo , Choi Yo-han , Lee Wonhee
Published: June 2020

Inertial lift force towards inflection points is enhanced by the combined effect of U-shape channel and co-flow, which enables unprecedented high-throughput cell separations from untreated whole blood.
Microfluidic chip with pillar arrays for controlled production and observation of lipid membrane nanotubes
Authors: Martinez Galvez Juan Manuel , Garcia-Hernando Maite , Benito-Lopez Fernando , Basabe-Desmonts Lourdes , Shnyrova Anna V.
Published: June 2020

Microarray surface chemistry and design set the geometry of lipid membrane nanotubes easily formed and observed in a microfluidic chamber.
Design and circuit simulation of nanoscale vacuum channel transistors
Authors: Xu Ji , Qin Yaling , Shi Yongjiao , Shi Yutong , Yang Yang , Zhang Xiaobing
Published: June 2020

Nanoscale vacuum channel transistors (NVCTs) are promising candidates in electronics due to their high frequency, fast response and high reliability, and have attracted considerable attention for structural design and optimization.
Mechanistic insights into the in vitro metal-promoted oxidation of (di)azine hydroxamic acids: evidence of HNO release and N,O-di(di)azinoyl hydroxylamine intermediate
Authors: Carvalho Edinilton Muniz , Rechignat Lionel , Sousa Eduardo Henrique Silva de , Lopes Luiz Gonzaga de França , Chauvin Remi , Bernardes-Génisson Vania
Published: June 2020

HNO is released through a one-electron oxidation of the hydroxamic acid along with the N,O-di(di)azinoylhydroxylamine intermediate.
Rhodium nanoparticles impregnated on TiO2: strong morphological effects on hydrogen production
Authors: Albuquerque Brunno L. , Chacón Gustavo , Nazarkovsky Michael , Dupont Jairton
Published: June 2020

Rhodium nanoparticles with different morphology were synthesized to assess the influence of the exposed facet towards hydrogen production in aqueous methanolic solution.
Formation of resorcinol-formaldehyde hollow nanoshells through a dissolution–regrowth process
Authors: Zhou Shuai , Bai Yaocai , Xu Wenjing , Feng Ji , Wang Xiaojing , Li Zhiwei , Yin Yadong
Published: June 2020

Dissolution and regrowth of resorcinol formaldehyde (RF) colloidal particles can occur spontaneously when they are subjected to etching in solvents such as ethanol and tetrahydrofuran, resulting in the formation of hollow nanostructures with controllable shell thickness.
Tuning intermediate filament mechanics by variation of pH and ion charges
Authors: Schepers Anna V. , Lorenz Charlotta , Köster Sarah
Published: June 2020

The mechanical properties of intermediate filaments depend on pH and ion concentration, providing cells with tools to tune their mechanics.
Realising the electrochemical stability of graphene: scalable synthesis of an ultra-durable platinum catalyst for the oxygen reduction reaction
Authors: Angel Gyen Ming A. , Mansor Noramalina , Jervis Rhodri , Rana Zahra , Gibbs Chris , Seel Andrew , Kilpatrick Alexander F. R. , Shearing Paul R. , Howard Christopher A. , Brett Dan J. L. , Cullen Patrick L.
Published: June 2020

Graphenide solutions provide a scalable route to realising the electrochemical stability of graphene supported Pt nanoparticles under fuel cell conditions.
Surface engineering of magnetic iron oxide nanoparticles by polymer grafting: synthesis progress and biomedical applications
Authors: Hou Zaiyan , Liu Yijing , Xu Jiangping , Zhu Jintao
Published: June 2020

Current strategies for surface grafting polymers on magnetic iron oxide nanoparticles and their biomedical applications are summarized in this review.
Development of oxetane modified building blocks for peptide synthesis
Authors: Roesner Stefan , Beadle Jonathan D. , Tam Leo K. B. , Wilkening Ina , Clarkson Guy J. , Raubo Piotr , Shipman Michael
Published: June 2020

The synthesis and use of oxetane modified dipeptide building blocks in solution and solid-phase peptide synthesis (SPPS) is reported.
Pd-Catalyzed one-pot synthesis of vinylsilanesviaa three-component tandem reaction
Authors: Li Wenguang , Zhang Chao , Lu Haiyan , Wang Yajun , Deng Guobo , Liang Yun , Yang Yuan
Published: June 2020

A palladium-catalyzed three-component tandem reaction for stereoselective assembly of various tri- or tetrasubstituted vinylsilanes is established.
Role of constituents for the chirality isolation of single-walled carbon nanotubes by the reversible phase transition of a thermoresponsive polymer
Authors: Shimura Eriko , Tanaka Tomomi , Kuwahara Yuki , Saito Takeshi , Sugai Toshiki , Kuwahara Shota
Published: June 2020

Optimized experimental conditions in the presence of sodium borate achieved the selective release of (6,4) nanotubes into the liquid phase.
Curcumin-loaded PEGylated mesoporous silica nanoparticles for effective photodynamic therapy
Authors: Kuang Gaizhen , Zhang Qingfei , He Shasha , Liu Ying
Published: June 2020

We developed a Cur loaded PEGylated mesoporous silica nanoparticle system (MSN-PEG@Cur) for effective photodynamic therapy in cancer treatment.
Two-dimensional porous coordination polymers and nano-composites for electrocatalysis and electrically conductive applications
Authors: Tang Liang-Po , Yang Sa , Liu Dan , Wang Cong , Ge Yanqi , Tang Li-Ming , Zhou Ren-Long , Zhang Han
Published: June 2020

Two-dimensional (2D) porous coordination polymers (PCPs) are a kind of porous crystalline material formed from metal nodes and organic ligands through coordination bonds.
ZIF-67-assisted construction of hollow core/shell cactus-like MnNiCo trimetal electrodes and Co, N dual-doped carbon electrodes for high-performance hybrid supercapacitors
Authors: Lv Huihui , Zhang Xubin , Wang Fumin , Lv Guojun , Yu Tiantian , Lv Minglian , Wang Jiawei , Zhai Yi , Hu Jiaqi
Published: June 2020

.A novel hybrid supercapacitor of Ni-CCH@MnNiCo-OH//ZIF-67-C-KOH was successfully fabricated with promising electrochemical storage properties.
Rational design of water-dispersible and biocompatible nanoprobes with H2S-triggered NIR emission for cancer cell imaging
Authors: Liu Hengyan , Xu Ge , Zhu Tianli , Wang Rongchen , Tan Jiahui , Zhao Chunchang , Gu Xianfeng
Published: June 2020

A nanoprobe with good aqueous solubility and biocompatibility by trapping an H2S-activatable small molecule probe in the interior of surface cross-linked micelles was fabricated for imaging of H2S-rich cancer cells in a dual-color imaging modality.
DegradedPorphyra yezoensispolysaccharide protects HK-2 cells and reduces nano-COM crystal toxicity, adhesion and endocytosis
Authors: Zhang Hui , Sun Xin-Yuan , Chen Xue-Wu , Ouyang Jian-Ming
Published: June 2020

Porphyra yezoensispolysaccharide protected HK-2 cells from the damage of nano-COM crystal and inhibited adhesion and endocytosis.
Hybrid hydrogel films with graphene oxide for continuous saliva-level monitoring
Authors: Zhang Zifeng , Dou Qian , Wang Shiwen , Hu Debo , Guo Xiangdong , Liao Baoxin , Zhao Zhipeng , Liu Hongliang , Dai Qing
Published: June 2020

Hybrid hydrogel films with graphene oxide were designed and coated on a quartz crystal microbalance (QCM) to continuously monitor the saliva glucose, resulting in a greatly-improved limit of detection.
Advances in the modification of the contradictory relationship between piezoelectricity and Curie temperature: simultaneous realization of large piezoelectricity and high Curie temperature in potassium sodium niobate-based ferroelectrics
Authors: Ma Jian , Wu Juan , Wu Bo , Wu Wenjuan
Published: June 2020

Herein, we achieved a balanced development of piezoelectricity and Curie temperature, which would promote the practical applications of KNN-based ceramics in high temperature fields.
Two-dimensional IV–VI materials with in-plane negative Poisson's ratio and anisotropic carrier mobility
Authors: Jing Tao , Liang Dongmei , Deng Mingsen , Cai Shaohong
Published: June 2020

Two-dimensional (2D) semiconductors with novel mechanical behaviors and electronic features are highly sought for a variety of potential applications.
Like mother, like microbe: human milk oligosaccharide mediated microbiome symbiosis
Authors: Chambers Schuyler A. , Townsend Steven D.
Published: June 2020

Starting shortly after parturition, and continuing throughout our lifetime, the gut microbiota coevolves with our metabolic and neurological programming. This symbiosis is regulated by a complex interplay between the host and environmental factors, including diet and lifestyle. Not surprisingly, the development of this microbial community is of critical importance to health and wellness. In this targeted review, we examine the gut microbiome from birth to 2 years of age to characterize the role human milk oligosaccharides play in early formation of microbial flora.
Native yeast from distinct organs of grapevines established in Queretaro, Mexico, and their potential oenological utilization
Authors: Barragán-Castillo Yamile M. , Miranda-Castilleja Dalia E. , Aldrete-Tapia Jesús A. , Arvizu-Medrano Sofía M. , Martínez-Peniche Ramón Á.
Published: June 2020

The aim of this study was to isolate, identify and determine the oenological potential of yeasts present in Vitis vinifera organs of grapevines established in Queretaro State, Mexico. The yeast distribution was influenced by the organ and the sampling season, and the yeast populations ranged from 0.8 and 5.5 Log CFU/g. A total of 93 yeasts were isolated, identified by RFLP and confirmed by sequencing of the ITS region, prevailing Aureobasidium cf. melanogenum and Basidiomycota yeast. The identified species with previously reported oenological potential were: Pichia cf. kluyveri and Clavispora cf.opuntiae. Remarkably, P. cf. kluyveri 3.1HM showed killer phenotype and was the most tolerant to sulfur dioxide, and survived 72 h after its inoculation in ‘Tempranillo’ must. C. cf. opuntiae 5.7HM showed β-glucosidase activity, the highest tolerance to 5 % ethanol and 25 °Brix (sugar levels). On the contrary, Rhodotorula isolates were not tolerant to stress conditions, and R. mucilaginosa 8HM did not grow under must conditions. Mixed fermentation using H. uvarum NB108/S. cerevisiae N05 resulted in the highest volatile acidity (0.45 g/L acetic acid), while no differences for total acidity, alcohol strength, residual sugars and total SO2 were found between the mixed fermentations treatments. This study provides an insight into the yeast diversity present in grapevines established in Queretaro, Mexico, and the oenological potential of. P. cf. kluyveri 3.1HM.
Dynamic friction coefficients of grain crops of bulk agricultural products
Authors: Savenkov Dmitriy , Kirischiev Oleg , Serdyuk Valentina , Shcherbakov Aleksey , Kirillov Dmitriy
Published: June 2020

The article covers issues related to the study of physical and mechanical characteristics of bulk materials, namely the coefficients of external friction in static and dynamic modes. The program, methodology and results of research on the practical study of external friction coefficients of typical agricultural grain products by the surfaces made of materials typical for the working bodies of production machines, using an innovative carousel-type device, are presented. As a result of research, it was found that in the range of linear speeds from 0 to 1.75 m/s, there is a change in the friction coefficients, which has a nonlinear character.
Innovative technological and technical support of grain production for the forest-steppe zone of Siberia
Authors: Dokin Boris , Elkin Oleg , Aletdinova Anna , Mozonov Argen
Published: June 2020

The purchase of agricultural machinery should be determined by technological and technical policies. The purpose of the study is to increase the efficiency of grain production through the use of innovative resource-saving technologies and equipment. The solution of this problem includes the definition of model farms that characterize the soil and production conditions of the forest-steppe zone of Siberia, the development of mathematical tools, the calculation of promising compositions of the machine and tractor fleet and alternative options for grain production technologies, depending on the availability of agricultural producers with resources. It allowed us to establish that if a commodity producer can spend 10-12 thousand rubles per 1 ha of grain crops on chemization and has 4 machine operators per 1000 ha of grain crops, then it can work on the classical intensive technology based on dump plowing and or deep loosening; if at the same level of chemization per 1 ha of grain crops and has 3 machine operators per 1000 ha of grain crops,then it must switch to intensive resource-saving technology at minimum or zero tillage. Switching to more energy-intensive tractors and resource-saving technologies allows you to save fuel by 30-35%, personnel by 1.5-2.5 times, and operating costs by 10-15%.
Ornamental trees and shrubs in green areas of the South-East coast of the Crimea
Authors: Potapenko Irina , Letukhova Viktoria , Klimenko Nikolai
Published: June 2020

The South-East Coast of the Crimea has been developing as recreational region. Green planting is one of the factors that improve its recreational attraction. So it is important to study cultivated here arboreal trees and shrubs for perfection their assortment for landscape gardening. We analyzed taxonomy and biomorphological structure, botanicgeographical origin of dendroflora, the history of introduction, and the present state of cultivated arboreal plants. At present cultivated dendroflora totals 229 species belonging to 107 genus of 27 families. Magnoliophyta occupies 86,0 % of species diversity and the leading role among them belongs to Rosaceae (27,4 %), Oleaceae (6,6%), Leguminosae (5,6%). Pinophyta occupies 14,0 % of species diversity and the leading role belongs to Cupressaceae (50,0 %). Species of Mediterranean flora dominate (31,4 %). The most of them are well adapted to local climatic and soil conditions and provide “Mediterranean” appearance to cultural landscapes. More than a half (62,9 %) of the species diversity are deciduous trees (38,4 %) and shrubs (24,5 %). The proportion of evergreen plants is lower: coniferous trees – 13,5 %, and evergreen shrubs – 13,1 %. Selecting assortment of ornamental arboreal trees and shrubs should correspond to their ability to withstand summer drought and winter low temperatures.
Estimation of ecological adaptability and stability of the promising winter barley varieties in a competitive variety testing
Authors: Filippov Evgenij , Bragin Roman , Dontsova Alexandra
Published: June 2020

There has been estimated the ecological adaptability and stability of winter barley varieties in the conditions of the Rostov region. There were studied 4 varieties and 6 lines of winter barley developed in the FSBSI “Agricultural Research Center “Donskoy”. The estimation was conducted according to the S.A. Eberchart, W.A. Rassel method (1966, ed. by V.A. Zykin), using a statistical processing software Statistica 10 and Excel. During the years of study (2017-2019), the environmental conditions varied significantly, which allowed reliably estimating the environmental adaptability and stability of the studied varieties and lines. The analysis of adaptability and stability resulted in identification of such responsive varieties as ‘Marusya’ and ‘Yerema’, as well as the line ‘Parallelum 1976’ with linear regression coefficients more than 1. The varieties ‘Marusya’ and ‘Yerema’ were the best ones among the studied varieties and lines, showing high and stable productivity over the years of study. According to the study results the variety ‘Vivat’ showed a sufficiently high level of adaptability. The variety ‘Timofey’ and the lines ‘Parallelum 1979’, ‘Parallelum 1981’, ‘Pallidum 1972’ showed a sufficiently high level of stability.
Identification of rice blast (Pyricularia) resistance genes in the breeding samples of rice
Authors: Vozhzhova Nataliya , Krasnova Elena , Ionova Elena
Published: June 2020

The current paper has considered the challenge of breeding of rice lines adapted to the climatic conditions of the Southern Federal District of Russia by pyramiding a complex of Pi-1, Pi-2, Pi-33, Pi-ta and Pi-b rice blast resistance genes which is efficient in the southern part of Russia. The control of the resistance genes present in the breeding material was carried out using a marker-associated selection (MAS). The purpose of the current study was to identify the Pi-1, Pi-2, Pi-33, Pi-ta, and Pi-b rice blast resistance genes in the rice samples developed in the laboratory of rice breeding and seed production of the FSBSI “Agricultural Research Center “Donskoy” to identify valuable genotypes. The screening of 689 breeding samples of rice resulted in identification of the allelic state of the Pi-1, Pi-2, Pi-33, Pi-ta and Pi-b rice blast resistance genes, and the genotypes with functional alleles of these genes and their combinations. There were identified 19 breeding samples of rice possessing a combination of 4 functional alleles of rice blast resistance genes in various combinations. The identified rice samples are valuable genetic material and are recommended to use as the sources of rice blast resistance in the breeding process.
The effectiveness evaluation of the carotenoids extraction from the tomatoes by means of absorption spectrophotometery method
Authors: Sokolov Sergey , Deyneka Innesa , Katanaeva Yuliya , Ugrekhelidze Natia , Yatskova Elena , Kulikova Natalia
Published: June 2020

In recent decades it is found that carotenoids have anticarcinogenic, cardioprotective, anti-atherogenic properties, and immunomodulating, radioprotective and anti-toxic effects. Discovered effect of carotenoids and lycopene, in particular, can be used to develop recommendations for prevention and treatment of those who are subjected to emergency situations of radiation and biological nature. This paper deals with spectrophotometery method for determining relative content of carotenoids in tomatoes of different ripeness levels. It is demonstrated that a wide complex absorption band within the wavelength ranging from 3500 to 6500 Å is superposition of absorption bands for specific carotenoid pigments, which are a part of in vivo tomato pulp samples. According to additivity law of absorbency, the area under obtained curves represents value directly proportional to the thickness of layer under investigation and total concentration of carotenoids that allows to identify relative content of carotenoids in examined samples. It was concluded that developed method of samples preparing for measurements and the spectrophotometery method itself for determining the relative content of carotenoids in research tomatoes, as well as waste raw materials and oil cake, has shown a sufficient reliability, high speed and economic viability.
Determination of the minimum drop height of the spherical grains in the solution of the treater
Authors: Saitov Viktor , Farafonov Vyacheslav , Saitov Aleksey , Malykh Tatyana
Published: June 2020

One of the main reserves for increasing grain production is the use for sowing high-quality seeds, purified from impurities and pathogens. One of the main ways to protect the seed from various diseases is dressing. The most effective way to protect seeds from disease is wet dressing with the simultaneous release of grain impurities. To develop a device for cleaning and dressing seeds by density using a wet method, an estimate was made of the minimum height of the fall of the grain needed to overcome the surface tension of the liquid. As objects of research, pea seeds were used, having a shape close to a spherical. Therefore, a spherical grains with a density ρz = (1.15-1.45)·103 kg/m3 and a diameter of 2rz = (3.5-10.9)·10-3 m was taken as a model of pea seed. We study the fall of individual spherical grains with minimal (2rzmin = 3.5·10-3 m) and maximum (2rzmax. = 10.9·10-3 m)) linear dimensions that have a density ρz = 1.15; 1.25; 1.35 and 1.45·103 kg/m3. Drop occurs on the surface of the water (ρzh = 1.0·103 kg/m3) and the aqueous solution of the etchant (ρzh = 1.03; 1.06; 1.09; 1.12 and 1.15·103 kg/m3), with Corresponding coefficients σ of surface tension (0.0727; 0.0755; 0.0771; 0.0786; 0.0801, 0.0816 N/m) and hydrodynamic drag coefficients c = 0.4 (0.5 for ρzh = 1.12·103 and 1.15·103 kg/m3). The process of dressing grain is considered at a temperature of 20 °C. It was established that the minimum drop height h to overcome the surface tension of the dressing solution with all spherical grains should be 15.5·10-3 m.
Research of some physical and mechanical characteristics of cow’s udder nipples
Authors: Khripin Vladimir , Ulyanov Vyacheslav , Kiryanov Alexander , Kurochkina Ekaterina , Cherkashina Lyudmila
Published: June 2020

A rational technology for cows’ machine milking when tie-up housing should provide for the development of technical equipment that meets the physiological requirements for a dairy cow and ensure complete and safe milking. In this regard, the task of determining and refining certain parameters of the physical-mechanical characteristics of the mammary gland of a cow becomes urgent. When choosing the rational mass of the suspended part of the vacuum milking machine, one should know the pressure transmitted by the teat cup liner to the body of the nipple of the animal when milking, which makes possible to establish the obtained analytical formula. It was found that the higher the deflection of the walls of the stretched teat cup liner, the higher the pressure caused by it on the nipple of the cow’s udder. Analysis of the distribution of diameters and lengths of the nipples of the mammary gland of cows showed that their sizes vary in wide ranges. Elongations of nipples depend nonlinearly on the acting tension, and the values of the elastic modulus and the transverse strain coefficient vary over a wide range.
Prospects for the use of disintegrated membranes of Yersinia pseudotuberculosis, Yersinia enterocolitica and specific antibodies derived from them
Authors: Kuznetsova Vera , Ivaschenko Sergey
Published: June 2020

It has been established that disintegrated membranes (DM) of pseudotuberculosis and intestinal Yersiniosis microbes can be used to produce highly active hyperimmune sera. Hyperimmune serum obtained as a result of immunization of rabbits with pseudotuberculosis DM showed specificity for Yersinia pseudotuberculosis cells, and serum obtained by immunization with intestinal Yersinia DM interacted in ELISA with Yersinia enterocolitica and Yersinia pseudotuberculosis cells. Antibody titers with bacterial cells of other genus of intestinal microflora were low, which allows the use of the obtained hyperimmune sera to create diagnostic yersiniosis test systems with specific and generic specificity.
The use of polyazolidineammonium and dimethyl-sulfoxide antigen Yersinia pseudotuberculosis to obtain hyperimmune serum
Authors: Manieson Victor , Ivaschenko Sergey
Published: June 2020

The use of polyazolidinammonium modified with iodine hydrate ions (PAAG) as an adjuvant made it possible to obtain rabbit hyperimmune blood serums for dimethyl-sulfoxide antigen (DA) of a pseudotuberculosis microbe with generic specificity. Antibody titers in ELISA with Y. pseudotuberculosis and Y. enterocolitica cells amounted to 1:25600-1:12800, and with cells of other genera of intestinal microflora 1:100-1:400. The optimal immunizing dose for obtaining hyperimmune yersiniosis serum was a dose of 2 mg DA of Y. pseudotuberculosis per rabbit. Such a dose made it possible to obtain hyperimmune sera with a high titer of specific antibodies with a small consumption of antigen. The optimal concentration of PAAG solution for hyperimmunization of Y. pseudotuberculosis DA rabbits was 1%.
Monitoring dirofilariasis spread: herding dogs in Armenia
Authors: Zykova Svetlana , Slobodyanik Roman , Belova Larisa , Kryazhev Andrey , Savinkov Aleksey
Published: June 2020

Dirofilariasis is distinguished by the causative agent provoking dirofilariasis: Dirofilaria immitis and Dirofilaria repens. In the territory of Armenia, dirofilariosis is studied little. The article addresses the evaluation of the spread and prevalence of dirofilariasis in Ararat Province of the Republic of Armenia. The research was focused on herding dogs. The research showed that 100% of cases were caused by D. immitis; the average prevalence among herding dogs in Ararat Province was 16,6%. Most dogs infected with Dirofilaria were aged 3 to 5 years. Therefore, in the territory of Armenia, there is an active local focus of dirofilariasis in carnivores with the active involvement of herding dogs in its spread
Ecogenesis of organs and tissues formation of in cattle in the embryonic period
Authors: Fenchenko Nikolay , Hairullina Nazira , Aminova Albina , Sabitov Munir , Shagaliev Fanus
Published: June 2020

The article gives a comparative aspect of the organism development periodization, depending on the gender and age of the fetus. It was established that in the individual development of animals, there is a specific biological regularity of periodicity. It is indicated by the unequal growth of individual organs and the organism as a whole at different stages of ontogenesis, age-related features in the growth of individual parts and proportions of the body, as well as changes in the requirements of a growing organism to living conditions. At different stages of animal embryogenesis, there is a rather short period of a sharp increase in metabolism, as well as the intensity and usefulness of self-renewal, which to some extent, is an indicator of the growth rate of the fetus depending on gender. Pituitary and serum gonadotropins were used to induce ovulation of cows. As a result, in the group where pituitary gonadotropin was used, 87.5% of cows with pregnancy of 91.7% showed desire, 75% of serum gonadotropin with 87.5% of pregnancy. An analysis of the obtained data shows that in the second stage of embryonic development, the intensity of the formation of internal organs slows down, while the intensity of increasing the live weight of the fetus increases, regardless of groups.
The effect of feeding a natural feed additive on the performance of broiler chickens
Authors: Yurina Natalya , Khorin Boris , Yurin Denis , Semenenko Marina , Kuzminova Elena
Published: June 2020

Natural feed additive is made on the basis of bottom sediments of the steppe reservoirs of the Krasnodar Territory and is a dry powder of a grayish tint. Mineralization of local bottom sediments is 6.5 g / kg, calcium content is 29.7 g / kg, macronutrients from 1.04 to 25.8 g / kg, trace elements from 0.03 to 0.7 g / kg. The medium reaction is from neutral to slightly alkaline. Using sapropel feed additives (SFA), it was possible to increase the gross live weight gain of broiler chickens by 1.7-2.0% while reducing feed costs per 1 kg of gain by 0.5%. All internal organs of the poultry were developed within normal limits. There was profitability increase by 1.1% in growing broilers, when using sapropel feed additives in full feed. Blood biochemical values were at an optimal level. Therefore, this feed additive can be considered as a natural feed ingredient; however, it is necessary to further develop a complex feed additive from natural components that partially or completely meets the requirement of the poultry in biologically active substances and micronutrients.
The dependence of the performance of the process of finishing vibration processing on the shape of the abrasive tool (granules)
Authors: Kozhukhova Aleksandra , Tolmacheva Larisa , Dmitrieva Irina , Kalyakina Inessa
Published: June 2020

The article presents the results of experimental studies of the influence of polymer abrasive granules shape on the surface roughness formation and metal removal during vibrational finishing and hardening treatment (VFHT). As is known, surface roughness and the amount of metal removal are affected by a number of factors: binder material, material and granularity of the abrasive, technological lubricant-coolant medium (LCM) type, loading mass, initial roughness, etc. Processing was carried out for 120 min on a UVG-4x10 vibrating machine, with a working chamber volume of 10 dm3. Metal removal Q (grams) and surface roughness Ra (μm) were measured using an AD-200 analytical balance and an SJ-210 profilometer. The results presented show that polymer abrasive granules have high cutting ability, the intensity of which depends on the shape of the granules.
Surface quality assurance and process reliability in the processing with a ball-rod hardener
Authors: Tamarkin Mikhail , Tishchenko Elina , Murugova Elena , Melnikov Alexandr
Published: June 2020

This paper presents the results of research on the processing with a multi-contact vibratory hardening tool ball-rod hardener. Theoretical relationships are derived for the calculation of surface roughness, the depth of the hardened layer, and the degree of deformation. The formula for determining the processing time is identified. The technological process reliability with a ball-rod hardener is investigated. Methodology of the process design with regard to its reliability assurance is presented.
Control of contamination of agricultural machinery motor oil pollution by optoelectronic method
Authors: Kochkovaya Natalia , Semenov Vladimir , Asstaturov Yuriy , Khanzhonkov Yuriy , Usova Irina
Published: June 2020

A new device for controlling the quality of motor oil of agricultural machines is proposed. To increase the information content of the output data and the possibility of uninterrupted automated control, as well as to increase the accuracy, efficiency and reliability of measurements, the device uses an optoelectronic method based on the “drip test” method.
Optimization of interbaric surface parameters taking into account the radial pulsation of the plant mass in the threshing space
Authors: Pyatnitzkaya Oksana , Fisunova Elena , Lavrenova Tatyana , Baryshnikova Olga , Filatov Danil
Published: June 2020

The article deals with the study of the penetration of stems and free grains into the interdigital spaces. The parameters of the interbearing surface of the plant mass in the threshing space are analyzed.
Diagnostics of hydraulic density of plunger couple of tractor diesel
Authors: Bodyakina Tatyana , Boloev Petr , Buraev Mihail , Shisteev Alexey
Published: June 2020

The article considers the process of developing diagnostic mathematical models that take into account the influence of the hydraulic density of the plunger pair associated with wear. To estimate leaks of precision parts, methods for calculating the cycle feed for wear of plunger pairs are presented. The position of the cut-off edge relative to the hole changes due to the injection movement and rotation of the plunger during the regulation of the fuel cycle. The method and results of accelerated testing of plunger pairs are also presented.
The art of arboplastics in the landscape architecture
Authors: Koveshnikov Alexey , Shiryaeva Nina , Naumkin Vladimir , Bulgakova Karina , Silaeva Zhanna
Published: June 2020

Arbosculpture in Russia is a developing art form. Nowadays there is a small number of works devoted to this topic in our country. In this regard, the aim of the following work is to study the technology of creating arbosculptures in the conditions of the central region of Russia. The material for creating arbosculptures are woody plants of the following species: Fraxinus excelsior L., Acer platanoides L., Prunus cerasifera Ehrh, Prunus cerasus L. The formation of sculptures takes 5 years or more. The process of the creation includes such stages as – making a sketch design, selection of a breed, planting a seedling (s), trimming, concrescence/ ingrafting, measures for the care and preservation of a given shape.
The system of landscaping and improvement of Rostov: problems and prospects
Authors: Mokina Albina , Vereshchagina Evelina
Published: June 2020

At present, the environment of a large modern city is technologically saturated to the limit, urbanized, and the most important task is a competent system of improvement and greening of urban areas. The article discusses the key projects of the city of Rostov-on-don to improve the quality of the urban environment from 2007 to the present. Existing projects included in the system of Federal projects operate only on small sections of the city territory, and do not solve the entire set of tasks within the entire city budget. This study shows that in urban planning there is no unified system of improvement and landscaping, implemented throughout the city according to a single plan. The article points out that modern systems and technologies are not used in the city, and if they are used, they are not used in a complex way, but only in fragments. The article focuses on the prospects for the integrated application of modern systems. The final part contains conclusions based on research materials. A comprehensive solution based on the collaboration of science and technology, all existing problems in the city territory will improve the main indicators of comfort and investment attractiveness of Rostov-on-don.
Risk assessment of hazardous abrasion and landslide processes in the coastal zone of the Azov Sea
Authors: Khavansky Alexander , Latun Vladimir , Khoroshev Oleg , Merinova Yuliya , Nedoseka Ludmila
Published: June 2020

The methodology was developed and the socio-economic risk of the manifestation of abrasion and landslide processes in the coastal zone of the Azov Sea was evaluated. The methodology includes assessing the degree of danger of coastal processes and determining possible material losses. The numerical index of socio-economic risk is calculated as the product of point estimates of these parameters. The main factors of dangerous coastal processes formation have been established, according to their similar combination in the coastal zone of the Azov Sea, 42 functional areas and the impact zone of hazardous abrasion and landslide processes predicted for a 20-year period have been identified. In the forecast zone, 112 socio-economic objects were identified that are subject to the influence of dangerous abrasion and landslide processes. For these socio-economic objects, using the standard set of tools of the public GIS service “Cadastral map of Rosreestr”, an enlarged calculation of possible economic damage has been made. The highest values of the socio-economic risk of the manifestation of abrasion and landslide processes in the coastal zone of the Azov Sea fall on abrasion and abrasion-landslide sections of the coast with a high rate of abrasion, a large number of capital construction projects and a high value of material losses.
Methodology for cadastral valuation of agricultural lands occupied by water bodies
Authors: Zhichkin Kirill , Nosov Vladimir , Zhichkina Lyudmila , Alborova Mira , Kuraev Aleksey
Published: June 2020

The article considers features of cadastral valuation of agricultural lands occupied by water bodies. The research is based on natural water bodies of the Samara region water fund. A methodology for determining the cadastral value of agricultural lands occupied by artificial water bodies is proposed. The methodology links the land value with the size of the land plot, profit and such objects as dams and other hydraulic structures located within the land plot. The paper confirmed the suggestion that the owner of the land that shall be used for the construction of a pond has the right to the added value of land in the amount of return rate of contributed capital (26.28%). The cadastral value of 1 square meter of agricultural land is 3.11 rubles.
Modeling of production indicators of timber carting out from the forest territory depending on the natural and climatic conditions
Authors: Mokhirev Alexander , Medvedev Sergey , Bragina Natalia
Published: June 2020

The article is devoted to the research of the dependence of timber carting out (logging activity) on natural and climatic conditions. Mathematical models are obtained for these dependencies. The modelling was performed for various timber harvesting periods. The result indicates a significant differentiation of factors, that affect the timber carting out depending on the timber harvesting periods. The object of research is the logging areas of the Krasnoyarsk krai, which is one of the largest regions of Siberia.
Cost-effectiveness assessment of the system of using mineral fertilizers in production conditions
Authors: Zhdanov Vasilii , Vinnichek Lubov , Vizirskaya Maria , Zhdanov Ivan
Published: June 2020

In this article, there is an information about how the indicator of cost-effectiveness assessment can be calculated and evaluated depending on amount of plant nutrition required to achieve the value of planned crop. There are also some results of putting mentioned information into practice and some conclusions about the necessity of making corrections in existing fertilizer using system which are based on data that we obtained in the course of our research. Information presented in this article will be helpful for farms that are currently practicing the use of fertilizers in order to systematize research data which is already obtained.
The study of metribuzin migration in lysimeters
Authors: Kolupaeva Victoria , Kokoreva Anna , Bondareva Tatyana
Published: June 2020

Metribuzin is a mobile pesticide widely used in agriculture and has great potential for soil migration. In addition, weather and soil conditions in the non-chernozem zone of Russia contribute to the movement of pesticides in the soil. The behaviour of metribuzin was studied in a lysimetric experiment. The experiment was carried out at the lysimeters of the Soil Research Station of Moscow State University from June 2016 to December 2017. Mertribuzin was applied in lysimeters in maximum recommended and eightfold rates two years in a row. Used in the recommended rate, metribuzin was detected in the samples of lysimetric water once at a concentration of 14 µg L-1 (6% of the samples analyzed). Applied in the eightfold rate, it was detected in 39.5% of samples, the maximum concentration was 180 µg L-1. The experiment revealed that metribuzin is able to leach bottom of the soil profile. The concentration of metribuzin found in the variant with the recommended rate is lower than the hygienic index adopted in Russian Federation for metribuzin, which indicates that the risk of metribuzin application for people is low.
Phenolic complex of red wine materials from grapes growing in the Crimea
Authors: Yermolin Dmitry , Yermolina Galina , Gerber Yuriy , Zadorozhnaya Daria , Kotolovets Zinaida
Published: June 2020

The research work presents the results of studies of the composition of anthocyanins, monomeric forms of phenolic substances, oligomeric procyanidins, polymer forms of phenolic substances in wine materials Cabernet Sauvignon, Merlot, Syrah, Petit Verdot, Sangiovese, Marcelan obtained from grapes growing in the Crimea. It was found that the main coloring material in the wine materials under study was malvidin-3-O-glycoside. The proportion of this compound ranged from 42.9% to 54.3% in the total of all anthocyanins. The highest mass concentrations of oxybenzoic and hydroxycinnamic acids are determined in the wine material Marcelan. In the Sangiovese wine material, the highest concentrations of flavan-3-ols are determined. Mass concentrations of quercetin-3-O-glucoside in the test samples were 4-17 mg/dm3; quercetin - 1-7 mg/dm3. Mass concentrations of oligomeric procyanidins were in the range of 106-240 mg/dm3 and the highest value was determined in the wine material Marcelan, the lowest Cabernet Sauvignon. Mass concentrations of polymer forms of phenolic substances amounted to 1487-2998 mg/dm3.
Beef for baby food from bulls and castrates
Authors: Zabashta Nikolay , Golovko Elena , Sinelshchikova Irina , Visokopoyasnaya Anastasia
Published: June 2020

The research was conducted to compare bulls and castrates in relation to the morphological composition of carcasses, the yield of beef suitable for the production of baby food products, and the quality and safety of raw meat. The research was based on the results of monitoring the safety of the environment, feed, and meat raw materials during the growing and fattening of steers with a meat productivity direction. The pre-slaughter weight and the yield of lean beef of 16-month-old Hereford bull-calves are higher in comparison with castrated animals of the same age, by 6.4 and 1 %, respectively. The muscle tissue of castrates contained 11.5 % of fat, and bulls 9.7 %. The protein content in the longest muscle of bulls was 19.8 %, and in castrates-17.0. The amount of fat beef that is not suitable for baby food is higher in castrate carcasses by 4.7 % compared to bull calves. A high protein quality index of the longest muscle of bulls (6.5) indicates a higher biological value of beef compared to meat from castrates (4.1). In terms of the content of residual amounts of pesticides, toxic elements, and antibiotics, the meat of castrates and bulls of the Hereford breed had no significant differences.
The use of Soxhlet extractor for the production of tinctures from plant raw materials
Authors: Borodulin Dmitrii , Prosin Maksim , Bakin Igor , Lobasenko Boris , Potapova Marina , Shalev Aleksei
Published: June 2020

The most important stage in the production of tinctures and aromatic alcohols is the extraction process. The paper aims to study the process of extracting target compounds from fruit and berry raw materials for the production of alcoholic tinctures. The research was carried out using a Soxhlet extractor. The experimental results were processed using the method of multiple regression analysis. As a result of processing the experimental data, the optimal technological regime parameters for the production of aromatic cranberry alcoholic tincture were selected. The cranberry tinctures produced at these parameters have a high content of target substances and reach maximum scores for taste, aroma and color. The obtained regression equations allow predetermining the quality of the resulting drink with a confidentiality of more than 90%. The use of the Soxhlet extractor allowed reducing the duration of the preparation of the cranberry tincture to 15 minutes, which is by times different from the classic method of tincture production. The use of the Soxhlet extractor allows reducing the consumed amount of solvent and raw materials, due to the almost maximum rate of the extraction. All this, in turn, affects the cost of the final product and the costs of the manufacturer.
Approaches for evaluation of relief morphometric characteristics influence on spatial distribution of moisture in the soils of steppe part of Crimea
Authors: Dunaieva Ielizaveta , Pashtetsk Vladimir , Vecherkov Valentyn , Popovych Valentina , Melnichuk Aleksandr , Terleev Vitaly , Nikonorov Aleksandr , Akimov Luka , Topaj Alexander
Published: June 2020

Data on soil moisture reserves are the basis for decision-making in the agricultural boghara system, because it determines the development of agricultural crops potential, terms of top-dressing and additional fertilizing, and makes it possible to predict yield of agricultural crops. In this article the influence of relief morphometric characteristics on the distribution of precipitation over the territory was studied. The research area is the land of the eastern part of Klepininsky rural settlement of Krasnogvardeysky district, the central part of Crimean Peninsula. The article considers approaches, divided into 2 main categories (according to the type of data used), based on the use of GIS capabilities and remote sensing data, to analyze the soil water content (SWC) using the example of research area and relationship of this parameter to the terrain relief. It was established that the morphometric characteristics of relief affect the amount of soil moisture.