bluuebunny/crossref_metadata_2025 huggingface dataset:
Kinetics investigation of alumina ceramics corrosion in nitric acid
Authors: Ćurković Lidija , Ropuš Ivana , Gabelica Ivana , Rončević Sanda
Published: July 2023

The most widely used ceramic material is aluminium oxide, known as alumina. Due to its superior properties such as chemical stability, high wear resistance, refractoriness and so on, it is ideal for applications in aggressive environment. This type of environment often includes exposure to corrosive solids, liquids and gases. When ceramics come in contact with corrosive medium, several corrosion mechanisms can occur, depending on a number of parameters. Therefore, the corrosion behaviour of cold isostatically pressed (CIP) high purity alumina ceramics was observed under different conditions: 0.5, 1.25 and 2 mol dm−3 of nitric acid at 25°C, 40°C and 55°C through 10 days. Purity of used alumina ceramics was 99.8345 wt. % with 0.1655 wt. % of both sintering aid (MgO) and impurities (SiO2, CaO, Na2O and Fe2O3). The results show that Al2O3 ceramics exhibit good corrosion resistance in nitric acid. Al2O3 corrosion behaviour varies depending on the temperature, time and HNO3 concentration. In view of the reaction kinetics, it proceeds in the near-parabolic law in HNO3 aqueous solution and decreases with an increase of the HNO3 concentration.
Lymph node metastasis: An immunological burden
Authors: Lund Amanda W.
Published: July 2023

Lymph node metastasis in breast cancer depends in part on the acquisition of an IFN-dependent, MHC-II+ state that induces regulatory T cell expansion and local immune suppression (Lei et al. 2023. J. Exp. Med.https://doi.org/10.1084/jem.20221847).
Generalizations and challenges for the spacetime block-diagonalization
Authors: Bokulić Ana , Smolić Ivica
Published: July 2023

Discovery that gravitational field equations may coerce the spacetime metric with isometries to attain a block-diagonal form compatible with these isometries, was one of the gems built into the corpus of black hole uniqueness theorems. We revisit the geometric background of a block-diagonal metric with isometries, foliation defined by Killing vector fields and the corresponding Godbillon–Vey characteristic class. Furthermore, we analyse sufficient conditions for various matter sources, including scalar, nonlinear electromagnetic and Proca fields, that imply the isometry-compatible block-diagonal form of the metric. Finally, we generalize the theorem on the absence of null electromagnetic fields in static spacetimes to an arbitrary number of spacetime dimensions, wide class of gravitational field equations and nonlinear electromagnetic fields.
Enhanced quantum capacitance of MX4 (M = Fe, Co, Ni, Cu, and Zn; X = N, P) moieties embedded graphene: a DFT study
Authors: Rani Babita , Bubanja Vladimir , Jindal Vijay K
Published: July 2023

In this work, density functional theory calculations are performed to study the impact of embedding transition metal-(N/P)4 moieties in graphene on its geometric structure, electronic properties, and quantum capacitance. Enhancement of quantum capacitance of transition metal doped nitrogen/phosphorus pyridinic graphenes is observed, which is directly related to the availability of states near the Fermi level. The findings show that electronic properties and hence quantum capacitance of graphene can be tuned by varying transition metal dopants and/or their coordination environment. Modified graphenes can suitably be chosen as positive or negative electrodes of asymmetric supercapacitors depending upon the values of quantum capacitance and stored charges. Furthermore, quantum capacitance can be enhanced by widening the working voltage window. The results can serve as guidelines for the design of graphene-based electrodes in supercapacitor applications.
Visual measurement of grinding surface roughness based on feature fusion
Authors: Huang Jiefeng , Yi Huaian , Shu Aihua , Tang Liang , Song Kun
Published: July 2023

Due to the random surface texture and weak features of the grinding processing, most current visual measurement of grinding surface roughness is predicted by designing feature indicators, but its imaging environment is more demanding and the indicator design is more artificial. While deep learning can achieve feature self-extraction, the existing deep learning-based feature extraction uses a single convolutional model to extract features, which tends to make the extracted features noise, with low resolution and poor perception of details. To address the above problems, this paper proposes a feature fusion-based method for measuring grinding surface roughness. The method adopts different feature extraction ways and fuses the extracted features to obtain more features while also improving the generalization ability of the model, and verifies the adaptability of the model in different lighting environments. The experimental results show that deep learning self-extracted features based on feature fusion can effectively solve the problem of weak feature information on grinding surface roughness that is difficult to identify, and the model has high detection accuracy across different lighting environments, thus laying the foundation for the automated visual online measurement of grinding surface roughness.
Dielectric metal/metal oxide nanocomposites: modeling response properties at multiple scales
Authors: Henderson Brett , N S Adluri Archita , T Paci Jeffrey , Paci Irina
Published: July 2023

Nanocomposites with metallic inclusions show great promise as tunable functional materials, particularly for applications where high permittivities are desirable, such as charge-storage. These applications strain quantum mechanical computational approaches, as any representative sample of the material includes hundreds if not thousands of atoms. Many continuum methods offer some predictive power for matrix-inclusion composites, but cannot be directly applied to composites with small inclusions, for which quantum and interfacial effects dominate. Here, we develop an adjustable finite element approach to calculate the permittivities of composites consisting of a metal-oxide matrix with nanometer-scale silver inclusions, by introducing an interfacial layer in the model. The approach involves solving the Laplace equation with Dirichlet and Neumann boundary conditions. We demonstrate that such a continuum model, when appropriately informed using quantum mechanical results, can capture many of the relevant polarization effects in a metal/metal oxide nanocomposite, including those that contain arbitrarily-small inclusions, at a fraction of the computational cost of performing the full quantum mechanics.
Geometric nonlinear analysis of dielectric layer based on concave paper-cut structure with zero Poisson’s ratio
Authors: Fangyi Wei , Ruilan Tian , Xiaolong Zhang , Huanan Hao , Minghao Wang
Published: July 2023

When the sensor works in a limited environment, its accuracy is easily affected by unnecessary strain loss. The key to improve accuracy is to reduce the transverse strain of the dielectric layer structure. It is an innovative technology to construct zero Poisson’s ratio dielectric layer to limit the lateral strain of dielectric layer under normal pressure. The porous metamaterial dielectric layer with zero Poisson’s ratio is constructed based on the paper-cutting theory. The equivalent nonlinear mechanical model is established by use of Bernoulli Euler beam theory and energy method. The analytical expressions of equivalent Poisson’s ratio and equivalent Young’s modulus are given, and the necessity of considering geometric nonlinear large deformation is revealed. An improved variable step iterative method is proposed in order to solve the problem of equivalent internal force analysis caused by geometric deformation nonlinearity. The key of this method is to determine the displacement at the free end under the premise of considering the nonlinear superposition of the rigid body motion of the curved bar of the metamaterial. Based on the equivalent nonlinear mechanical model, the structural deformation characteristics of the dielectric layer structure in the linear small deformation stage and the nonlinear large deformation stage are analyzed. The results of theoretical, finite element simulation and experimental research reveal the necessity of considering geometric nonlinear factors in the practical application of the structure, which means that the foundation is theoretically and experimentally laid for the design of porous elastic dielectric layer of flexible capacitive pressure sensor.
Self-deploying origami magnetic membranes with flexible sensors for narrow liquid channels
Authors: Zhou Pan , Zhang Xianmiao , Li Ya , Ren Miaoning , Xiang Hongbiao , Huang Xian
Published: July 2023

Miniaturized magnetic membranes have garnered substantial attention in the biomedical field due to their biocompatibility and mechanical properties in recent years. In this study, we explore the self-deployment mechanisms of six origami magnetic membranes with different folding patterns and magnetic polarities. The deployment of the membranes is purely caused by the repelling effect of the internal magnetic fields with different directions without relying on any external magnetic field. And the strength of the internal magnetic field within the membrane directly determines the repelling forces on the pre-deployed region of the magnetic membranes. Our results show that the crimp folded and transversely magnetized membranes can deploy 12.50 times from an original opening size of 2.00 mm in narrow liquid channels within 22 s. Additionally, these membranes exhibit the ability to adaptively deploy in narrow liquid channels with different structures, including L-shaped, V-shaped, and U-shaped at different flow rates. Furthermore, the self-deployable membranes can serve as carriers for flexible and stretchable devices, enabling multi-area deployment through small opening. Integrated with various functional flexible electronics, these self-deployable membranes provide possibilities for innovative applications in the diagnosis and treatment of diseases, and targeted drug delivery.
Particle-reinforced elastomer model to analyse viscoelastic properties of flake-shaped electrolyte iron particle-based magnetorheological elastomer
Authors: Patel Dipal , Upadhyay Ramesh V , Mazlan Saiful Amri
Published: July 2023

This paper uses parallel-plate-plate rheometry to focus on the magnetic field-dependent nonlinear viscoelastic behaviour of flake-shaped electrolyte iron powder-based magnetorheological elastomer (MRE). MRE was prepared using liquid silicon rubber as a base, a curing agent and electrolyte iron particles as fillers. Three MRE samples having 60%, 40%, and 0% filler weight fractions were prepared. The curing was carried out at 300 K. The thickness of the sample was 1.00 ± 0.04 mm. Scanning electron microscopy results showed uniform dispersal of particles within a matrix. The swelling measurement technique was used to confirm the enhanced reinforced properties of elastomer by calculating the cross-link density. The magnetic volume fraction evaluated from magnetisation measurements yields values of 18.7% for MRE-60 and 8.7% for MRE-40. Both moduli’s field-induced linear and nonlinear amplitude dependence were analysed using the modified particle-reinforced elastomer model. The result indicates that filler particles adsorbed on polymer chains were essential in determining the reinforcing properties of MRE. The improved cross-link density and particle morphology were responsible for the enhanced field-induced magnetorheological effect (277%). This value is nearly three times greater than that observed in spherical particles-based MRE.
Exploring the potential of hydrothermally synthesized AgZnS@Polyaniline composites as electrode material for high-performance supercapattery device
Authors: Rehman Asad Ur , Afzal Amir Muhammad , Iqbal Muhammad Waqas , Wabaidur Saikh Mohammad , Al-Ammar Essam A , Mumtaz Sohail , Choi Eun Ha , Ali Muhammad
Published: July 2023

Polyaniline (PANI), being one of the highly stable and electroactive conducting polymers, is under investigation for some past years for its better conductivity and other electrochemical characteristics. In this research, PANI is utilized to enhance the electrochemical capabilities of silver-zinc sulfide (AgZnS). The synthesis of silver-zinc sulfide was done hydrothermally, while PANI was prepared via polymerization of aniline. The improvement in capabilities of silver-zinc sulfide was analyzed by adding PANI in it in 25%, 50%, and 75% weight ratios. One of the compositions with 50% PANI unveiled an excellent specific capacity (Qs) of 1121.6 Cg−1. The same composition was further examined for its charge storage capability by assembling a supercapattery device. The assembled device functioned remarkably well resulting in a highest Qs value of 223.44 Cg−1 at 1 Ag−1. Moreover, the device delivered a tremendous energy density of 49.65 Wh kg−1 at a power density of 795.33 W kg−1. The device lost only 10% of its capacity following 5000 charge-discharge cycles, while the Coulombic efficiency remained to be 95% over the same number of cycles at 4.2 Ag−1. The highest power density turned out to be 7678.93 W kg−1 with the lowest energy density of 9.62 Wh kg−1. The reported work, as compared to previous work puts forward a suitable electrode material to be exploited in superior energy storage devices.
Pristine and modified silicene based volatile organic compound toxic gas sensor: a first principles study
Authors: Showket Shazia , Shah Khurshed A , Dar G N
Published: July 2023

In this work, we have investigated the sensitivity of two Volatile Organic Compounds (VOCs), formaldehyde (FD) and acetaldehyde (AD) on the surface of two-dimensional (2D) Armchair Silicene Nanoribbon (ASiNR) by analysing the structural, electronic and transport properties using density functional theory (DFT) and non-equilibrium Green's function (NEGF) formalism. Different models of ASiNR have been considered viz; pristine, Al-doped, P-doped, Al/P co-doped and vacancy-defected ASiNR. The findings revealed that the vacancy-defected models shows a significant increase in the adsorption energies for both VOCs compared to other models. Apart from that, in all the models, the current increases with the applied voltage and the maximum value of current was found in Al/P co-doped model at a higher bias voltage of 2 V. The variation of the computed transmission spectrum peaks from −2 to 2 eV of energy values also confirms the sensitivity of the proposed models towards the VOC molecules. Moreover, the projected device density of states (PDDOS) revealed that all the models remain semiconducting before and after adsorption, which completely agrees with the transmission spectrum. Furthermore, Al/P co-doped model shows high sensitivity of 68% and77% towards FD and AD molecules respectively. Thus, it is concluded that the modeled ASiNR VOC gas sensors will aid in sensing cancer.
J/ψ pair hadroproduction at next-to-leading order in nonrelativistic-QCD at CMS*
Authors: Sun Li-Ping
Published: July 2023

We perform a complete study of

pair hadroproduction at next-to-leading order (NLO) in the nonrelativstic-QCD (NRQCD) framework with the

pair either in the

or

fock states. It is found that the

channel contribution at NLO is essential. Our results indicate that for the CMS, the NRQCD predictions cannot describe the experimental data at all, and the total cross section predicted via NRQCD is smaller than the experimental data by an order of magnitude. Therefore, new mechanisms are needed to understand the CMS data for

pair production.
Steady states of two-dimensional granular systems are unique, stable, and sometimes satisfy detailed balance
Authors: Myhill Alex D C , Blumenfeld Raphael
Published: July 2023

Understanding the structural evolution of granular systems is a long-standing problem. A recently proposed theory for such dynamics in two dimensions predicts that steady states of very dense systems satisfy detailed-balance. We analyse analytically and numerically the steady states of this theory in systems of arbitrary density and report the following. (1) We discover that all such dynamics almost certainly possess only one physical steady state, which may or may not satisfy detailed balance. (2) We show rigorously that, if a detailed balance solution is possible then it is unique. The above two results correct an erroneous conjecture in the literature. (3) We show rigorously that the detailed-balance solutions in very dense systems are globally stable, extending the local stability found for these solutions in the literature. (4) In view of recent experimental observations of robust detailed balance steady states in very dilute cyclically sheared systems, our results point to a self-organisation of process rates in dynamic granular systems.
Exact solutions for a spin-orbit coupled ultracold atom held in a driven double well
Authors: Luo Yunrong , Wang Xuemei , Yi Jia , Li Wenjuan , Xie Xin , Luo Zhida , Hai Wenhua
Published: July 2023

Exact solutions for spin-orbit (SO)-coupled cold atomic systems are very important and rare in physics. In this paper, we propose a simple method of combined modulations to generate the exactly analytic solutions for a single SO-coupled ultracold atom held in a driven double well. For the cases of synchronous combined modulations and the spin-conserving tunneling, we obtain the generally accurate solutions of this system respectively. For the case of spin-flipping tunneling under asynchronous combined modulations, we get the specially exact solutions in simple form when the driving parameters are appropriately chosen. Based on these obtained exact solutions, we reveal some intriguing quantum spin dynamical phenomena, for instance, the arbitrary coherent population transfer with and/or without spin-flipping, the controlled coherent population conservation, and the controlled coherent population inversion. The results may provide a possibility for generating the accurate quantum entangled states and the exact control of spin dynamics for a SO-coupled ultracold atomic system.
Factors of innovation development directions of “Green economy” in the conditions transformations
Authors: Molchanova L A , Khokhlova S V , Basova N V , Gyunther I N , Malykh M S
Published: July 2023

The paper actualizes the issue of the problems of society’s transition to the modern direction of “green economy”, presents its possible prospects for development and the need for implementation in the modern economic process. The definition of the term “green economy” is given and the main characteristic features of this process are outlined. The main advantages and prospects of the “green economy” direction are determined. The analysis of the development of the innovative method in the conditions of functioning of the market management system and free competition is carried out. The methods of influence and regulation of this directions within the framework of the country’s legislative system. Proposals have been put forward regarding a possible plan for the development of the state in the context of the functioning of the innovative direction “green economy” in the economic process.
Green marketing and factors affecting its development
Authors: Mammadova V Q , Hasanov A F , Hasanova A A
Published: July 2023

One of the most urgent issues in the background of the processes taking place at the global level at the moment is the increase in the demand for products and services due to the rapid increase in the world population and the difficulties in meeting it. In order to meet the increased demand, the intensive integration of modern technologies into the production process, in particular, leads to the disruption of the ecological balance, the production of ecologically clean products has created the ground for it to gradually move into the background. In this aspect, the activities of companies committed to sustainable development and corporate social responsibility should be specially evaluated. Thus, those companies are not only focused on the high economic interest of making profit, but at the same time, they show a high initiative to meet the expectations of society and ecosystem protection. At present, the systematic application of these principles is called green marketing. Green marketing shows that more organizations can make their products attractive to consumers and improve packaging, transportation, energy, water use, etc. and strive to implement sustainable business practices so that they can reduce costs. The continuous application of the principles of social responsibility by enterprises can increase their market position and image in society, as well as increase brand loyalty among socially conscious consumers. We believe that green marketing will become one of the most effective economic tools in the future for producers to be one step ahead in the increasingly competitive environment.
State support for the exports of products of the grain-growing sector of a region
Authors: Shelkovnikov Sergei A , Samokhvalova Anastasia A , Essaulenko Dmitrii V , Leonova Yana V
Published: July 2023

Grain growing is one of the essential branches of agriculture in Russia, and the products of its processing have a significant impact on the country’s food security. Grain has the most critical specific gravity in the structure of grain growing production. The availability of substantial areas of fertile land and relatively favourable weather conditions enable Russia to meet its domestic needs for food and fodder grain and become a major grain exporter to the global market. The Novosibirsk Region is one of the critical regions that is self-sufficient in grain. Therefore, it has significant potential for increasing export volume and a favourable location, making it a major exporter of grain products beyond the Ural. The important Siberian Federal District supplies gain, and leguminous crops are China, Mongolia, Kazakhstan, Uzbekistan, and Tajikistan, i.e., Central Asia and Southeast rapeseed like such, flax, and buckwheat prevail in the export structure. In 2018, 459,000 tons of grain were exported, higher than in 2017. In 2018, 459 thousand tons of grain were exported, higher than in 2017. A significant part of the growth in exports of agricultural raw materials is accounted for by non-CIS countries such as China (38% of the total), Turkey, Egypt, Iran, Saudi Arabia, China, Bangladesh, and Kazakhstan. In 2017, oilseeds were exported to China, oilseeds 700 tons, against 26.8 thousand tons. Grain storage facilities in the Novosibirsk region are represented by 30-grain elevators and grain reception facilities, which have an actual grain storage capacity of 1,621.5 thousand tons.
Agro-ecological assessment of the condition of arable soils of the CCR
Authors: Surinov A V
Published: July 2023

The data sources for the study were the results of a continuous agrochemical (for 3 cycles) and soil erosion survey of soils, as well as official statistical data. The study period was characterized by an increase in the content of organic matter in the soil by 0.35%, alkaline hydrolyzable nitrogen by 20 mg/kg, an increase in pH acidity degree by 0.15 pH units, a reduction in the amount of medium acidic soils by 16.4%. It was found that on poorly eroded soils, the content of organic matter decreases by 0.4%, on medium eroded soils - by 1.7%. Doses of organic fertilizers increased by 3.0%, mineral fertilizers - by 7.8%. The winter wheat yield increased by 13.3%, spring barley - by 20.7, grain maize - by 4.7, sunflower - by 13.6, sugar beet - by 12.6, and soybeans - by 18.4%.
Development of the optimal regime of irrigated land
Authors: Kutlimuratov Z K , Turdiboev Y Y , Avezov N E , Achilova S S
Published: July 2023

The paper considers innovative solutions for irrigation in the areas of the on-farm irrigation network, carried out through the territorial division of a network of permanent irrigation canals into separate irrigated areas from each other. Some basic aspects of automation of the on-farm irrigation network are discussed, with relevant questions - what should be the accounting of irrigation water, and how should be carried out water intake and distribution aimed at water aimed at goals and objectives for their use on the irrigation network for drip and rain irrigation. They stem from the need to introduce automated means of automated systems and IT technologies on rural irrigation facilities for the near and far prospects in the context of global and regional climate change, reducing own and incoming water volumes. The work characterizes the economic and social effects of the work carried out. From this point of view, the work is characterized by analyzes the relationship of the farmer with the association of water users, based on instrumental monitoring and digital documented reports for the water consumed.
Analysis of the error of influencing factors on the result of measuring the moisture content of grain and grain products
Authors: Kalandarov P I , Olimov O N , Abdullaeva D A , Yadgarova D B , Azizova N SH
Published: July 2023

The potential to utilize an ultrahigh-frequency method to regulate the humidity of grain and the products of their industrial processing, allowing one to use this method to regulate technological processes in the production environments of grain-processing industries by controlling the material under examination in free space and converting the measured parameters of the electromagnetic wave passed through the material into an electrical signal. The developed functional scheme of the experimental setup based on the ultrahigh-frequency method of dependence of attenuation and phase shift of electromagnetic wave on the volumetric density of wheat grain at different mass fraction of humidity is discussed, it is shown that with increasing volumetric density at a constant value of the mass fraction of moisture decreases the error of grain moisture measurement with increasing volumetric density, where the main component of the total error of the ultrahigh frequency method (amplitude and phase) is associated with the influence of interfering factors and depends mainly on the variable thickness and density of the controlled material. In order to reduce the components of measurement error brought on by various non-informative (interfering factors) parameters on the outcome of measuring the mass moisture ratio of grain and grain products, the method of moisture measurement in both discrete and inline manufacturing is investigated.
Fuzzy logical model for assessing soil salinity
Authors: Muhamediyeva D T
Published: July 2023

The relevance of the development of theoretical and methodological tools for constructing a fuzzy logical model for assessing soil salinity is due to the automation of the formation of a base of fuzzy rules from a given set of certain conditions, checking the correctness of the constructed rules with criteria for the adequacy of fuzzy models and creating algorithms and programs using standard algorithms and software modules for solving fuzzy logic problems. conclusion and decision-making based on the constructed models for assessing soil salinity.
Ontological integration of digital sub-platforms of plant and animal husbandry
Authors: Medennikov V I
Published: July 2023

The purpose of the work is to develop digital mechanisms for the integration of information systems of plant and animal husbandry with the analysis of their implementation conditions. The relevance of research is determined by the need for such a procedure due to a significantly increased list of tasks to be solved and data volumes due to the improvement of information and communication technologies, which led to the emergence of technologies for precision animal husbandry and agriculture, Earth’s remote sensing, requiring a combination of a large number of overlapping structured data and technologies for their processing, as well as solving problems of intersectoral relationships reflecting their interaction through the feed base, raw materials for processing, as well as the demands of the population and state bodies that are gaining momentum about the possibility of checking information on the legality, quality, and safety of products online. Digital standards obtained by mathematical modeling of them are proposed as the main research method. As a result of the research, digital mechanisms were obtained for solving integration problems not only of crop and livestock information systems, but also their integration with digital logistics and processing platforms. Conclusions: the obtained digital mechanisms provide fundamentally new opportunities for the digital transformation of industries with a multiple reduction in its cost.
The effect of mineral nutrition systems as an element of cultivation technology of wine grape varieties on their productivity in the conditions of Crimea
Authors: Aleinikova Natalia , Didenko Pavel , Shaporenko Vladimir , Didenko Liana , Belash Sergey
Published: July 2023

The article presents study results of 2021-2022, conducted in the soil and climatic conditions of the South Coastal and South-Western viticulture zones of Crimea on valuable wine grape varieties ‘Muscat Blanc’, ‘Cabernet-Sauvignon’ and ‘Rkatsiteli’. It was established that the use of experimental system of mineral nutrition with fertilizers of LLC “TD Izagri” on grape plantings during two growing seasons contributed to a significant increase in the growth of green matter of bushes on average by 154.1 cm3 (5.2%) for different varieties. It was concluded that five-fold foliar top dressing of vineyards with the studied mineral fertilizers led to an increase in the bunch weight by 5.7-16.8 g (4.8-7.7%), shoot productivity by an average of 6.3%, and an increase in the cropping capacity by 3.4-11.7% (4.2-18 c/ha), compared with the control variants. It was noted that the use of experimental systems of mineral nutrition against the background of grape productivity increasing raised the level of sugar concentration in grape must by an average of 5.4% (11.7 g/dm3). Based on the results obtained, it was proven that using of mineral fertilizers for two years did not have a negative effect on the quality of base wines obtained from grapes of the studied wine varieties.
Designing a pre-sowing seed treatment method and a combined sowing rig
Authors: Kasymbekov R , Temirbaeva N , Toktonaliev B , Osmonov Y , Aituganov B
Published: July 2023

The authors have designed a seed pelleter and a combined precision sowing rig, which are the backbone of the technology of pre-sowing treatment and seed sowing. The pre-sowing seed treatment method is based on the operation of a continuous seed pelleter, where the protective and nutritious coating is formed around the seeds while they move along a spiral trajectory. The next component of the technology is a combined sowing rig that performs several technological operations in one pass: laying of drip tape for irrigation, polyethylene film and precise sowing of seeds in the holes on the film. The trial results have shown: the ratio of the volumes of seed pellets to the plant seed is 4.25:1; the maximum moisture content of the pellets is 47.4%; during the seed pelleting process, the longitudinal seed moistening and pellet volume variance factors increases by 2.015 and 4.25 times, respectively; the optimal speed of the seed pelleter disk is 90 min−1; the time spent on the seed pelleting process is 18 to 21 min; the percentage of qualitatively coated seeds (pellets) is 98%; the unevenness of the along-the-row distribution of pellets during sowing is ±6%; the depth of seeding down is 3 to 4 cm.
Silicon in agrocenosis with spring wheat
Authors: Seregina I , Islamgulova R , Trukhachev V , Eliseeva O , Zharkikh O , Zhevnerov A
Published: July 2023

The influence of various ways of using silicon in the form of potassium silicate on the yield of spring wheat under the conditions of model agrocenosis has been studied. To address the issues raised, a vegetative experiment was carried out in the soil culture. Studied two ways of making potassium silicate by treating seeds before sowing and applying to the soil. The positive effect of the silicon-containing compound was established both on the mass of grain and on the mass of straw. The greatest efficiency of silicon was manifested when using potassium silicate for seed treatment before sowing. The mass of grain increased as a result of an increase in the average number of seeds per ear by 5% and the weight of 1000 grains by 22%. An increase in the removal of basic nutrients from the soil was revealed as a result of an increase in the content of nitrogen, phosphorus and potassium and stimulation of the processes of their outflow from vegetative organs to generative organs.
Vitamin preparations for poultry farming
Authors: Momot N V , Kolina Yu A , Kamlia I L
Published: July 2023

The article indicates that further development of poultry farming is due to the optimization of the feed base associated with the use of effective veterinary feed additives having a positive effect on the health and average daily weight gain of young poultry. When choosing imported market products, a correctly selected HS code is of great importance, which allows reducing the delivery time of vitamin preparations and vitamin-mineral complexes, which favorably affect the growing time and quality indicators of the quality of products obtained.
The use of antioxidants for the correction of hyperthermia in ducks
Authors: Plakhotniuk E V , Skobelskaya T P , Lemeshchenko V V , Saenko N V , Lizogub M L
Published: July 2023

The state of the protein, carbohydrate-lipid and mineral metabolism, as well as the functional state of parenchymal organs using the drug Introvit-EC-100 Oral and ascorbic acid to correct hyperthermia in ducks are under the study. It was established that in all the studied groups there was a high content of total protein, due to dehydration and loss of the liquid component of the blood during hyperthermia. Ducks of the experimental groups showed a significant decrease in total protein level, β-globulins, an increase of albumin, a stable level of α- and γ-globulins was more pronounced in the first group. In ducks of the control group, no significant changes in the level of total protein and fractions, with the exception of α- and β-globulins, were found. During the experiment, there was a tendency of reduction of the creatinine content in the blood serum of ducks of both experimental groups, against the background of a consistently high level in ducks of the control group. Thus, the drug Introvit-EC-100 Oral, when used daily for 30 days at a prophylactic dose, has a significant effect on restoring the level of total serum protein, uric acid, creatinine, and the protein fraction ratio.
The effect of clay on the 137Cs secretion with milk when it is included in the cow diet
Authors: Romanenko A A , Kozhukhov A A
Published: July 2023

The purpose of the work was to study the possibility of using local clay as a 137Cs sorbent when including it in the diet of lactating cows. The research was conducted in 2020 in the Zlynkovsky district of the Bryansk region contaminated with radioactive substances as a result of the disaster at the Chernobyl Atomic Electric Power Station. In the experiments, animals selected according to the principle of analogues were used, which were fed with clay, in accordance with the experiment scheme, previously mixed it with concentrated feeds. The experiments were carried out in the winter-stall and summer-pasture periods. During the research, the daily milk yield was considered and milk samples were taken. Then the 137Cs and milk fat content was determined in them. The obtained results were subjected to statistical processing. As a result, it was found that clay included in the cow diet reduces radionuclide content in milk. In the first experiment carried out during the winter-stall period, the inclusion of clay in the diet in the amount of 200, 400, and 600 g/day/head reduced the 137Cs content in milk of the experimental groups by 30% (P>0.05), 50% (P<0.05), and 80% (P<0.05) accordingly. In the second experiment, performed during the summer-pasture period, clay was added to the main diet in the amount of 300 and 600 g/head/day. As a result, the content of 137Cs in milk decreased by 42 and 79%, respectively, compared with the control group. At the same time, there is a positive trend in clay effect on dairy productivity. The inclusion of clay in the animal diet in the amount of 300 and 600 g increased the daily yield by 4 and 6%, respectively.
Sanitary and microbiological assessment of wastewater when using a biological treatment system
Authors: Skopina Larisa , Demin Evgeny , Kostomakhin Nikolay , Kovaleva Olga
Published: July 2023

Microorganisms are natural biocatalysts capable of automatic selection and adaptation for wastewater treatment with any content of organic pollutants. Microbiological destruction of a wide range of polycarbon organic compounds occurs due to the formation of a microbial sequence. The sequence is that the end products (exometabolites) of “primary” destructor-microorganisms are the primary substrates for “secondary” destructor-microorganisms. The proposed concept is a spatial sequence for wastewater treatment containing a wide range of organic substances of high concentration. The essence of the biological treatment system was the introduction of microbiological preparations into wastewater according to an individually developed technology. At the same time, air was additionally injected into the water column by an aerator. A decrease in organic matter concentration showed a positive redox potential of the medium. Consequently, an increased value of the redox potential means a decrease in the concentration of organic compounds in wastewater, which is an indicator of treatment effectiveness.
Effect of bioregulators on the activity of catalase isoforms in spring wheat
Authors: Seregina I , Anka M , Trukhachev V , Belopukhov S , Dmitrevskaya I
Published: July 2023

In laboratory experiments with resting and germinated seeds of spring wheat, the effect of various biological preparations on the activity of catalase isoforms was studied. In the experiments, the activity of catalase isoforms was determined at pH = 5.5, 7.0, 8.0 using a phosphate buffer system (1/15 M phosphate buffer). The activity of catalase enzyme isoforms was determined in dormant wheat grain that underwent post-harvest ripening and during germination on the third, fifth, and seventh days using a method based on determining the amount of hydrogen peroxide dissolved under the action of the enzyme, and subsequent titration of the remaining undissolved hydrogen peroxide with potassium permanganate. In experiments, the effect of the following biopreparations protective and stimulating complex (PSC), Hardy, Ferovit and Ferovit+Hardy mixture, which were applied by foliar treatment during cultivation of wheat plants, was investigated. It has been established that changes in the activity of catalase isoforms occur both in dormant and germinating plant seeds and differ depending on the biological preparation used in plant cultivation.
CsPbI3-perovskite quantum dot solar cells: unlocking their potential through improved absorber layer characteristics and reduced defects
Authors: Shrivastav Nikhil , Madan Jaya , Mohammed Mustafa K A , Hossain M Khalid , Pandey Rahul
Published: July 2023

Perovskite quantum dots (CsPbI3-PQDs), a translucent material, have gained great interest in the PV industries owing to their unified virtues of perovskites and quantum dots. However, researchers have found that perovskite solar cells (PSCs) suffer from issues like low stability at high relative humidity, energy states imbalance, severe hysteresis, and an easy decomposition under ultraviolet (UV) radiation that severely restrict their industrialization. Quantum dots (QDs) are excellent materials with numerous admirable traits that have been extensively employed in PSCs to overcome the aforementioned problems. To achieve high performance of the examined device, the CsPbI3-PQDs has been stacked between two charge transport layers, i.e., Cl@SnO2 (to facilitate electrons towards cathode) and P3HT (to facilitate holes towards anode). In this context, study of variations in different parameters such as thickness and acceptor density of the CsPbI3-PQDs absorber layer has been done. After varying the thickness and acceptor density of the CsPbI3-PQDs layer, the cell’s performance is optimized at thickness of 400 nm and acceptor density of 1 × 1017/cm3 delivering higher PV parameters power conversion efficiency (PCE):16.17%, open circuit voltage (VOC):1.02 V, short circuit density (JSC):18.06 mA cm−2 and fill factor (FF): 87.06% respectively. Thereafter, the effects of bulk defects in CsPbI3-PQDs and the interface between CsPbI3-PQDs and Cl@SnO2 have been explored in this work. For the cell to work at its best, the bulk defect density and interface defect density, respectively, should not be more than 1 × 1014 /cm3 and 1 × 1013 /cm2. Afterwards, a comprehensive study has been done by varying the front electrode transparency (from 40% to 95%) to improve the device performance. With 95% of front electrode transparency, the performance of device is improved due to increase in the photon coupling.
An approach to the characterization of the local Langlands correspondence
Authors: Bertoloni Meli Alexander , Youcis Alex
Published: July 2023

Scholze and Shin [J. Amer. Math. Soc. 26 (2013), pp. 261–294] gave a conjectural formula relating the traces on the automorphic and Galois sides of a local Langlands correspondence. Their work generalized an earlier formula of Scholze, which he used to give a new proof of the local Langlands conjecture forGLn\mathrm {GL}_n. Unlike the case forGLn\mathrm {GL}_n, the existence of non-singletonLL-packets for more general reductive groups constitutes a serious representation-theoretic obstruction to proving that such a formula uniquely characterizes such a correspondence. We show how to overcome this problem, and demonstrate that the Scholze–Shin equation is enough, together with other standard desiderata, to uniquely characterize the local Langlands correspondence for discrete parameters.
Clinical Outcome and Morphology-Based Analysis of p53 Aberrant and Mismatch Repair Protein-Deficient Ovarian Clear Cell Carcinoma and Their Association With p16, HER2, and PD-L1 Expression
Authors: Wilkins Reid , Lin Lawrence Hsu , Xia Rong , Shiomi Tomoe , Zamuco Ronaldo DeLeon , Shukla Pratibha Sharma
Published: July 2023

Objectives

We studied the prevalence and prognostic significance of mismatch repair deficient (MMRD) and p53 aberrant ovarian clear cell carcinoma (CCO) and their association with other prognostic and theranostic biomarkers (p16, HER2, PD-L1). We also aimed to identify morphologic features to serve as screening tools for immunohistochemical testing for these biomarkers.

Methods

Tissue microarrays with 3-mm cores from 71 pure CCOs were immunostained with PMS2, MSH6, p53, p16, HER2, and PD-L1. Expression status was correlated with tumor recurrence/disease progression and survival. It was also correlated with morphologic features (tumor size, nuclear grade, tumor architecture, mitotic activity, presence of endometriosis, tumor budding, and tumor inflammation).

Results

p53 aberrant tumors were associated with shorter overall and recurrence-free survivals (P = .002 and P = .01, respectively). In multivariate analysis, p53 aberrant status and tumor stage were independently associated with recurrence/disease progression (hazard ratio [HR] = 3.31, P = .037 and HR = 1.465, P = .004, respectively). p53 aberrant status was associated with tumor budding (P = .037). MMRD, p16, HER2, and PD-L1 expression had no prognostic significance. HER2 and PD-L1 were expressed in 56% and 35% of tumors, respectively. MMRD was associated with tumor expression of PD-L1 (P > .05) but not with tumor inflammation.

Conclusions

Aberrant p53 in CCO is infrequent but associated with poor prognosis independent of stage. Presence of tumor budding could be a screening tool for p53 testing. High prevalence of HER2 and PD-L1 expression indicates the eligibility of patients with CCO for ongoing clinical trials using these therapeutic targets.
Childhood and Life-Course Socioeconomic Position and Cognitive Function in the Adult Population of the Hispanic Community Health Study/Study of Latinos
Authors: Filigrana Paola , Moon Jee-Young , Gallo Linda C , Fernández-Rhodes Lindsay , Perreira Krista M , Daviglus Martha L , Thyagarajan Bharat , Garcia-Bedoya Olga L , Cai Jianwen , Lipton Richard B , Kaplan Robert C , Gonzalez Hector M , Isasi Carmen R
Published: July 2023

The Hispanic/Latino population experiences socioeconomic adversities across the lifespan and is at greater risk of cognitive impairment, yet little is known about the role of life-course socioeconomic position (SEP) in cognitive function in this population. Using baseline data (2008–2011) from adults (aged 45–74 years) of the Hispanic Community Health Study/Study of Latinos, we assessed the association between childhood SEP and socioeconomic mobility with cognitive function, and whether this association was mediated by midlife SEP. Childhood SEP was assessed using parental education. An index combining participants’ education and household income represented midlife SEP. Socioeconomic mobility was categorized as stable low, downward or upward mobility, and stable high-SEP. Cognitive function measures were modeled using survey linear regression with inverse-probability weighting, accounting for covariates. We used mediation analysis to estimate the indirect effect of childhood SEP on cognition through midlife SEP. High childhood SEP was associated with global cognition in adulthood (coefficient for parental education beyond high school vs. less than high school = 0.26, 95% confidence interval: 0.15, 0.37). This association was partially mediated through midlife SEP (indirect effect coefficient = 0.16, 95% confidence interval: 0.15, 0.18). Low SEP through the life course was associated with the lowest cognitive function. This study provides evidence that life-course SEP influences cognitive performance in adulthood.
O05 Functional roles of lncRNA in cutaneous squamous cell carcinoma disease progression
Authors: Bone Max , Harwood Catherine , Leigh Irene , Bailey Peter , Inman Gareth
Published: July 2023

Cutaneous squamous cell carcinoma (cSCC) is one the most prevalent malignancies with metastatic potential within the UK and is of significant public concern due to its increasing annual incidence. The progression of cSCC has been historically characterized into several key stages, but the mechanistic properties as to how the disease advances remains poorly defined. In recent years, long noncoding RNA (lncRNA), a widely uncharacterized and poorly understood family of RNA molecules over 200 nucleotides in length, have become of increasing interest in regulating epigenetics and various other cellular processes. These molecules have also been found to be widely associated with cancer pathways as both inhibitors and drivers of disease, and have been identified in all cancers as potential molecules of interest, including cSCC. Although several lncRNA have been recognized as functionally relevant in cSCC, they represent a small proportion of the estimated 300 000 lncRNA transcripts of which most have unknown functions within both skin and cSCC specifically. By performing RNAseq on 110 patient samples, including normal sun-exposed skin (n = 26), actinic keratosis (n = 14), primary cSCC (n = 66) and metastases (n = 4) and utilizing various bioinformatic analysis pipelines, key lncRNA of interest were identified in cSCC. These lncRNA of interest were then explored in vitro in a panel of patient-derived cSCC cell lines to find key lncRNA of functional relevance. These functionally active lncRNA were subjected to further in silico analysis to determine splice isoforms and transcripts responsible for disease progression, and potential mechanisms of regulating cellular epigenetics.