bluuebunny/crossref_metadata_2025 huggingface dataset:
Проблемы обеспечения правового положения подозреваемых, обвиняемых и осужденных (на примере деятельности учреждений и органов УФСИН России по Мурманской области).
Authors: Ф.В. Грушин , И.А. Жилко , П.А. Климонов
Published: November 2024

В статье рассматриваются некоторые аспекты обеспечения правового положения осужденных, подозреваемых и обвиняемых, отбывающих наказание в учреждениях уголовно-исполнительной системы. Для анализа соответствующих правоотношений авторами были изучены судебные решения по исковым заявлениям осужденных, подозреваемых и обвиняемых о признании действий (бездействия) должностных лиц учреждений и органов Управления Федеральной службы исполнения наказаний по Мурманской области незаконными. Был взят период с 1 января по 31 декабря 2022 года. По итогам проведенного анализа выявлены типичные проблемы в сфере обеспечения правового положения лиц, содержащихся в учреждениях уголовно-исполнительной системы, а также предложены некоторые меры по их устранению.

The article considers some aspects of ensuring the legal status of convicts, suspects and accused persons serving sentences in penal institutions. To analyze the relevant legal relations, the authors studied court decisions on claims filed by convicts, suspects and accused persons to recognize the actions (inactions) of officials of institutions and bodies of the Federal Penitentiary Service for the Murmansk Region as illegal. The period from January 1 to December 31, 2022 was taken. Based on the results of the analysis, typical problems in the field of ensuring the legal status of persons held in penal institutions were identified, and some measures to eliminate them were proposed.
Установление потерпевшего при ятрогенных преступлениях
Authors: О.С. Тонких
Published: November 2024

Автор рассматривает жизнь и здоровье человека как конституционную ценность, тем самым аргументируя актуальность настоящего исследования: уголовно-правовая защита потерпевших от медицинских преступлений является важной частью российской уголовно-правовой политики. В статье раскрывается определение понятия «ятрогенные преступления». Проанализировав ряд научных правовых исследований по данному вопросу, автор соглашается с одним из представленных определений. Рассматриваются виды вреда, причиняемые потерпевшему от таких преступлений. Автор говорит о физическом, моральном и материальном вреде потерпевшего от ятрогенных преступлений и приводит примеры по каждому из названных видов. Анализируя практику, а также опираясь на нормы уголовно-процессуального права, автор изучает виды представительства потерпевших от ятрогенных преступлений в уголовном процессе.

The author considers human life and health as a constitutional value, thereby arguing the relevance of this study: criminal-legal protection of victims of medical crimes is an important part of Russian criminal-legal policy. The article reveals the definition of the concept of "iatrogenic crimes". Having analyzed a number of scientific legal studies on this issue, the author agrees with one of the presented definitions. The types of harm caused to the victim of such crimes are considered. The author talks about physical, moral and material harm to the victim of iatrogenic crimes and gives examples for each of the named types. Analyzing practice, as well as relying on the norms of criminal procedural law, the author studies the types of representation of victims of iatrogenic crimes in criminal proceedings.
К вопросу о конституционной модели местного самоуправления в Российской Федерации
Authors: Д.С. Саркарова , Ш.М. Меджидов
Published: November 2024

В настоящее время вновь меняется статус местного самоуправления ввиду вступивших в силу изменений законодательства. Вопрос новой модели местного самоуправления, прав и обязанностей органов местного самоуправления вновь остро встает как перед практиками, так и перед наукой. Актуальным остается вопрос о месте местного самоуправления в структуре управления государством. Авторы анализируют конституционную модель местного самоуправления, сложившуюся в Российской Федерации, раскрывают ее отличительные особенности.

Currently, the status of local self-government is changing again due to the changes in legislation that have come into force. The issue of a new model of local self-government, the rights and responsibilities of local self-government bodies is again acute for both practitioners and science. The question of the place of local self-government in the structure of state governance remains relevant. The authors analyze the constitutional model of local self-government that has developed in the Russian Federation and reveal its distinctive features.
Efecto del uso de harina de plátano dominico (Musa simmonds) y tapioca (Manihot esculenta) como fuente de carbono en el cultivo de Barbo tigre (Puntius tetrazona) en sistema biofloc
Authors: Heredia-Fernández S. M. , Monroy-Dosta M. del C. , Desentis-Pérez D. L. , Negrete-Redondo P. , Mata-Sotres J. A. , Ramírez-Torrez J. A.
Published: November 2024

The objective of this study was to evaluate the effect of three carbon sources: molasses (Control), tapioca flour and banana peel, for the development of a biofloc system in the culture of the ornamental fish Puntius tetrazona. To ensure floc formation, a C/N ratio=20:1 was maintained for each of the carbon sources, considering three replicates per treatment. According to the results, the environmental parameters showed fluctuations, especially in the first three weeks of culture, within the optimal ranges for the species. Fish growth expressed as biomass gain did not show significant differences (P > 0.05) among treatments, but the standard length did (P < 0.05). The highest absolute and specific growth rates were obtained in plantain peel and tapioca, regarding the feed conversion factor, molasses had the highest value (0.91 g), followed by tapioca with 0.27 g, and banana peel with 0.25 g. Survival was 100% in the banana peel group, followed by tapioca, and molasses. The Phyla of microfauna recorded in the experimental groups were, Ciliphora, Rotifera, Annelida, Nematoda, Plathelmintes, Gastrotricha, and Amoebozoa with variations among treatments throughout the experiment. The results of the present study demonstrate the potential of using Dominican plantain hull meal as a carbon source for the development of ornamental fish cultures in biofloc, being an option that, due to its low cost, will increase the profitability of the cultures.
Key words: Biofloc, tiger barbel, molasses, banana peel, tapioca.
Análisis FODA de la apicultura en la península de Yucatán
Authors: Canepa–Pérez I. M. , Escamilla-De La Luz F. I. , López–Ponce M. E. , Álvarez–Juárez O. G. , Dzul-Caamal Ricardo
Published: November 2024

The objective of this work is to identify and analyze through a participatory diagnosis the main strengths, opportunities, weaknesses and threats of beekeeping in the Yucatan Peninsula. Three participatory workshops were held with beekeepers in the states of Campeche, Yucatan and Quintana Roo. The study was based on the SWOT analysis procedure as a diagnostic tool. The analysis indicated that the main strengths of beekeeping in the Yucatan Peninsula are the experience, organization of the producers and the biodiversity that the beekeeping flora provides to the Apis mellifera bees to produce honey. The weaknesses were the lack of good practice, lack of knowledge in administration and location of their apiaries. In the area of opportunities, government support, cooperatives and access to new markets stood out. Finally, the threats were climate change (droughts, hurricanes), the use of pesticides, beehive pests and fluctuating honey prices. This diagnosis is of great importance to propose improvement proposals for the strengthening of beekeeping activity in the Yucatan Peninsula.
Keywords: beekeeping, SWOT, producers, Yucatán Peninsula.
Inhibition of Alpha-Hemolysis toxin of Staphylococcus Aureus through Molecular docking simulations
Authors: Reddy Roma , Sharma Gaurav
Published: November 2024

Alpha toxin, also known as α-toxin or Hla, is a potent protein toxin produced by Staphylococcus aureus. The mechanism of membrane inhibition of alpha toxin begins with the binding of the toxin monomers to specific receptors on the surface of susceptible host cells until the complex inserts into the lipid bilayer to form a transmembrane pore, resulting in cell lysis and death. We hypothesize that blocking the pore of the protein could block the pore formation on the cell surface and prevent cell lysis. The alpha toxin protein structure is obtained from the Protein Data Bank (PDB). We used AutoDock to perform the molecular docking, forecast the optimum ligand binding locations inside the protein's active site, and provide information on likely binding affinities and interactions. We used PLIP analysis to analyze and visualize protein-ligand interactions. Using our simulations, we found that Ligands III and IV exhibited the highest binding contacts with the alpha-hemolysin protein's pore-forming region due to their high binding affinities and extensive hydrophobic and hydrogen bonding interactions. The application of this study establishes the groundwork for the creation of targeted therapy treatments against Staphylococcal infections.
In Silico Analysis of Cardiac Disease Protein Biomarkers by Using Aptamers
Authors: Vinapamula Tanmayi Sri Sanjana , Sharma Gaurav
Published: November 2024

Acute myocardial infarction (AMI), also known as a heart attack, is a serious medical condition and a leading cause of death worldwide. The diagnosis of AMI relies on a combination of clinical symptoms, physical examination, electrocardiogram (ECG), and blood tests detecting elevated levels of cardiac disease protein biomarkers indicative of heart muscle injury. Nevertheless, these techniques usually necessitate skilled personnel and pose a significant economic strain. Among these biomarkers, Tumor Necrosis Factor α (TNF-α) has been identified as specific to AMI. Recently, DNA-based aptamers that specifically bind to TNF-α have been developed to detect cardiac diseases. We hypothesize that the high specificity of these aptamers towards the TNF-α protein is due to a specific binding site present on the surface of this soluble protein. Consequently, the TNF-α-aptamer interactions have been investigated by molecular docking simulations. First, the aptamer 3D structures were modeled and docked onto the TNF-α protein. By comparing the TNF-α binding site using machine learning and electrostatic surface potential analysis, the docking results were further verified. Based on these findings, novel aptamers were rationally designed by making chemical mutations and were subsequently docked onto the TNF-α protein. Among these mutate aptamers M4 binds strongly to the protein and can potentially aid in developing TNF-α biomarkers. The current investigation work will facilitate the development of rapid and highly sensitive diagnostic tools for the early detection and monitoring of cardiac diseases using aptamers.
Triply Convergent Ni-Electrocatalytic Assembly of 1,1-diaryl Cyclobutanes, Azetidines, and Oxetanes
Authors: Massaro Luca , Neigenfind Philipp , Feng Andrew , Kuehn Gannon , Attard Flynn C. , DeSanti Ava , Collins Michael R. , Bravo Martin , Twumasi Raymond K. , Chen Doris , Bolduc Philippe N. , Nicastri Michael , Emmanuel Megan A. , Oderinde Martins S. , Palkowitz Maximilian D. , Zheng Xiaofan , Hunter Arianne C. , Harper Kaid C. , Tyrol Chet C. , Mykhailiuk Pavel K. , Kawamata Yu , Baran Phil S.
Published: November 2024

Increasingly complex, three-dimensional leads for drug discovery are testing the limits of modern organic synthesis. In this context, the need for new methods to access gem-diarylated cyclobutanes, azetidines, and oxetanes is apparent. The present study outlines a modular, scalable, chemoselective approach to solve this problem using simple a-bromoacids and aryl halides as intuitive starting materials. As demonstrated herein, a sequential series of Ni-electrocatalytic cross-couplings can be enlisted to enable rapid access to such structures, many of which have never been accessible before, without recourse to time-consuming polar bond disconnections that are inherently limiting in terms of accessible chemical space. The scalability of this new reaction sequence is demonstrated, alongside direct applications to known patented structures. A simple user guide is also presented to accelerate adoption of this strategy in medicinal chemistry.
Galvanic Corrosion Underlies Coulombic Efficiency Differences in High-Performing Lithium Metal Battery Electrolytes
Authors: Oyakhire Solomon T. , Kim Sang Cheol , Zhang Wenbo , Shuchi Sanzeeda Baig , Cui Yi , Bent Stacey F.
Published: November 2024

Current guidelines for electrolyte engineering in lithium metal batteries are based on design metrics such as lithium morphology, electrolyte transport properties, solid electrolyte interphase (SEI) characteristics, and lithium-electrolyte reactivity. In our work, we show that those design metrics fail to account for performance differences in new high-performing electrolytes whereas galvanic corrosion does. This insight regarding the importance of galvanic corrosion is enabled by the combination of machine learning with rigorous experimental characterization. First, we partition our electrolyte data into low and high Coulombic efficiency (CE) segments to obtain an interpretable machine learning model which informs the design of high-performing (high CE) electrolytes. We design new model-guided, high-performing electrolytes and use spectroscopy and electroanalytical methods to demonstrate the weak correlation between common design metrics and performance in the high-performing electrolytes. Our work results in the design of a high-performing electrolyte with a Coulombic efficiency (CE) of 99.6%, a new understanding that common performance indicators are not sufficient for informing the development of high-performing electrolytes, and the identification of galvanic corrosion as an important performance driver in high-performing electrolytes.
Reduction of Background-Triggered Amplification in Lesion-Induced DNA Amplification (LIDA)
Authors: Ealeswarapu Anantha S. , Akter Nahida , Gibbs Julianne M.
Published: November 2024

Lesion-induced DNA amplification (LIDA) enables isothermal amplification of nucleic acids, and the only enzyme required is T4 DNA ligase. However, the application of LIDA for the amplification of trace amounts of nucleic acids has been hindered by the observed background-triggered amplification in the absence of initial target due to a pseudo-blunt end ligation reaction of two of the primers. In this work, we have tested three approaches to minimize the background-triggered amplification: increasing and decreasing the concentration of salts such as NaCl and MgCl2, respectively, and increasing the concentration of ATP. All these optimizations sharply decreased the background-triggered amplification. Employing the most favourable buffer condition of 2.5 mM MgCl2 where the target-initiated amplification was least affected while reducing the background-triggered process enabled us to achieve a detection range of 14 nM-140 aM with an approximate limit of detection of 680 aM, which is six orders of magnitude more sensitive than using our standard amplification conditions. This optimization of the salt and co-factor concentrations to decrease background and enhance the sensitivity of LIDA has demonstrated LIDA’s potential for application in clinical diagnostics.
Models and Measurements Quantify Photon Recycling, Charge-Carrier Diffusion, and Photon Scattering Contributions to Photoluminescence in InP Nanowire Arrays
Authors: Lustig Danielle , Chen Fangqi , Zhang Wentao , Bird Olivia , Fajardo Jr. Javier , Ardo Shane , Hu Shu , Talin A. Alec , Bala Chandran Rohini , Sambur Justin
Published: November 2024

Nanowire arrays present many unique advantages for solar-to-chemical energy conversion and are good model systems to investigate how the performance of one nanowire can influence others in an array. Spatially resolved photoluminescence is a powerful experimental characterization tool to quantify optical and electronic coupling between nanowires in an array. However, three underlying mechanisms of incident photon scattering, photon recycling, and charge-carrier diffusion dictate this coupling. In this study, we present a comprehensive analysis of light absorption and emission of a single nanowire at open circuit, and subsequent re-absorption and re-emission by a neighboring nanowire. We developed a novel correlated single nanowire micro-spectroscopy and widefield imaging methodology to spatially resolve photon communication pathways between neighboring nanowires and selectively image re-emitted and reflected photons. Unique multiphysics models have been developed to couple wave optics and semiconductor photophysics to especially isolate contributions from photon recycling and electronic transport to photon emission from neighboring nanowires. By systematically varying the morphologies of the nanowires modeled, we identify pathways to maximize photon recycling between neighboring nanowires. We conclude that the measured photoluminescence is more strongly influenced by the diffusion of charge-carriers as compared to photon recycling in materials with moderate-to-large charge-carrier mobilities (> 10 cm2 V-1 s-1), and that photon recycling dictates photoluminescence intensity only when the charge-carrier mobility is low (< 1 cm2 V-1 s-1). The experimental and simulation platforms developed herein for photon management strategies can be leveraged by the semiconductor photocatalysis community to enhance solar-to-chemical conversion efficiencies in semiconductor nanowire arrays.
A Simple Linear Relation Solves Unphysical DFT Energy Corrections
Authors: Rohr Brian , Suram Santosh , Bakander Jens
Published: November 2024

Material properties calculated using density functional theory (DFT) are often corrected to more closely match experimental values, but the most common correction method has flaws that lead to unphysical results and false positives in the material discovery process. In this work, we show that these flaws stem from the fact that only additive errors are considered, and we provide evidence that DFT predictions are likely subject to proportional error as well. We analyze the case of formation energy predictions since stability is a critical material property. We propose a simpler, linear formation energy correction method, which we call the 110\% PBE correction, that models proportional error and thereby addresses the problems associated with the most common correction method. We demonstrate that the conclusions drawn from the 110\% PBE correction method are more likely to be physically accurate.
Catching Fullerenes: Synthesis of Molecular Nanogloves
Authors: Mirzaei Saber , Hu Xiangquan , Mirzaei M. Saeed , Espinoza Castro Victor M. , Wang Xu , Figueroa Nicholas , Chang Tieyan , Chen Ying-Pin , Prieto Rios Gabriella , Gonzalez-Pech Natalia Isabel , Chen Yu-Sheng , Hernández Sánchez Raúl
Published: November 2024

Herein, we report the synthesis of a new series of rigid, all meta-phenylene, conjugated deep-cavity molecules, displaying high binding affinity towards buckyballs. A facile two-step synthetic approach with an overall yield of approximately 54% has been developed using a templating strategy that combines the general structure of resorcin[4]arene and [12]cyclo-meta-phenylene. These two moieties are covalently linked via four acetal bonds resulting in a glove-like architecture. 1H NMR titration experiments reveal fullerene binding affinities (Ka) ex-ceeding >10^6 M–1. The size complementarity between fullerenes and these scaffolds maximizes CH⋯π and π⋯π interactions and their host:guest adduct resemble a ball in a glove, hence their name as nanogloves. Fullerene recognition is tested by suspending carbon soot in a solution of nanoglove in 1,1,2,2-tetrachloroethane, where more than a dozen fullerenes are observed ranging from C60 to C96.
Predicting Fragment Binding Modes Using Customized Lennard-Jones Potentials in Short Molecular Dynamics Simulations
Authors: Vorreiter Christopher , Robaa Dina , Sippl Wolfgang
Published: November 2024

Reliable in silico prediction of fragment binding modes remains a challenge in current drug design research. Due to their small size and generally low binding affinity, fragments can potentially interact with their target proteins in different ways. In the current study, we propose a workflow aimed at predicting favorable fragment binding sites and binding poses through multiple short molecular dynamics simulations. Tailored Lennard-Jones potentials enable the simulation of systems with high concentrations of identical fragment molecules surrounding their respective target proteins. In the present study, descriptors and binding free energy calculations were implemented to filter out the desired fragment position. The proposed method was tested for its performance using four epigenetic target proteins and their respective fragment binders and showed high accuracy in identifying the binding sites as well as predicting the native binding modes. The approach presented here represents an alternative method for the prediction of fragment binding modes and may be useful in fragment-based drug discovery when the corresponding experimental structural data are limited.
Anisotropic Cosmological Model with SQM in f(R, Lm) Gravity
Authors: Bolke Pravin , Patil Vasudeo , Waghmare Sachin , Mahajan Neha
Published: November 2024

A locally rotationally symmetric Bianchi-I model filled with strange quark matter (SQM) is explored in f(R, Lm) gravity as a non-linear functional of the form f(R, Lm)=R/2 +Lαm, where α is the free model parameter. We considered the special law of variation of Hubble’s parameter proposed by Berman (1983) and also used the power law relation between the scale factors to obtain the exact solution of the field equation, which matches the model of the universe. We also analyze the physical and geometrical aspects of the universe’s kinematic and dynamic behavior. Additionally, we employ equation-of-state (EoS) parameters and statefinder parameters as analytical tools to gain insights into the evolution of the universe. We use the ΛCDM model as a benchmark to validate the results. By placing the deviations of the universe from ΛCDM  model and yet making important contributions to the study of the anisotropic nature of f(R, Lm) gravity within the framework of cosmological dynamics, the paper increases our comprehension of our cosmic evolution.
Study on Anisotropic Dark Energy Cosmological Models in Generalized Brans-Dicke Theory
Authors: Santhi M. Vijaya , SantoshRupa K.
Published: November 2024

In this present paper, we have investigated the dark energy cosmological model in Bianchi−V I0 spacetime by considering generalised Brans-Dicke theory, self-interacting potential, and a dynamical coupling parameter. For this purpose, we have utilised a hybrid scale factor to approximate the dynamical behaviour of the deceleration parameter. The deceleration parameter should display distinctive flipping behaviour at the transition redshift since the universe is thought to have changed from an early deceleration to a late temporal acceleration. We have studied six alternative transitioning dark energy models on the basis of observational restrictions on the transition redshift. For each model, the behaviour of the dynamical scalarfield, the Brans-Dicke parameter, and the self-interacting potential are examined. On top of that, we used the generalised Brans-Dicke theory to estimate how the Newtonian gravitational constant changes over time.
Impact of Ion Pressure Anisotropy in Collisional Quantum Magneto-Plasma with Heavy and Light Ions
Authors: Mahanta Deepsikha , Chandra Swarniv , Sarma Jnanjyoti
Published: November 2024

We have examined collisional degenerate plasma composed of charged state of heavy positive ion and light positive as well as negative ion. Employing the reductive perturbation method, we derived the damped Korteweg-de Vries-Burgers (dKdV-B) equation and by using its standard solution we analyze the characteristics of the solitary-shock profile under varying parameters. Furthermore, with the application of planar dynamical systems bifurcation theory, the phase portraits have been analyzed. This dynamical system analysis allowed us to extract important information on the stability of these structures as represented by the dKdV-B equation.
Effect of Rarefactions and Convective Heat Change on Free Convective Unsteady MHD Flow in a Slip-Flow Regime Past a Vertical Wall with Convective Surface Boundary Condition
Authors: Agarwal Hemant , Chakraborty Shyamanta
Published: November 2024

The study investigates the unsteady free convective two-dimensional MHD flow past a vertical porous plate with convective surface boundary condition in porous medium in slip flow regime under the action of variable suction velocity. Analytical solutions are obtained for the system using perturbation technique that converts non-linear coupled governing partial differential equations into non-dimensional form of ordinary differential equations. Effects of variable suction velocity, rarefactions parameter and heat change parameter are analysed and discussed graphically for various values of effective physical parameter such as Grasshof number, Magnetic field parameter, Prandtl number, Permeability parameter on fluid velocity and temperature, skin friction, and heat transfer.
Modeling Temperature Dependence of The Combined Density of States in Heterostructures with Quantum Wells Under the Influence of a Quantizing Magnetic Field
Authors: Erkaboev Ulugbek I. , Ruzaliev Sherzodjon A. , Rakhimov Rustamjon G. , Sayidov Nozimjon A.
Published: November 2024

In this work, the dependence of the oscillation of the combined density of states on a strong magnetic field in heterostructures based on a rectangular quantum well is studied. The effect of a quantizing magnetic field on the temperature dependence of the combined density of states in nanoscale straight-band heterostructures is investigated. A new mathematical model has been developed for calculating the temperature dependence of the two-dimensional combined density of quantum well states in quantizing magnetic fields. The proposed model explains the experimental results in nanoscale straight-band semiconductors with a parabolic dispersion law.
An Optimized Ultrasonic Spray Pyrolysis Device for The Production of Metal Oxide Films and Their Morfology
Authors: Zainabidinov Sirajidin S. , Boboev Akramjon Y. , Yunusaliyev Nuritdin Y. , Usmonov Jakhongir N.
Published: November 2024

In this work, we developed an optimized ultrasonic spray pyrolysis device for obtaining metal oxide films. The key benefit of this facility lies in its cost-effectiveness and its ability to consistently coat extensive surfaces without sacrificing the integrity of the semi-conductive films, thus streamlining the manufacturing process of semiconductor films. The resulting films exhibit the following attributes: the thickness of the deposited layer is approximately 400 nm, while the diameters of ZnO1-xSx nanocrystals range from 50 to 200 nm, oriented perpendicular to the crystallographic orientation (111). In the production of nanorods, the average height is estimated to be approximately 30-50 nm, with a density of 2.9×10¹¹ cm⁻² being indicated.
Anticipating Pressure Changes in Halides under Compression
Authors: Srivastava Abhay Prakash , Pandey Brijesh Kumar , Upadhyay Mukesha
Published: November 2024

A new equation of state (NEOS) for Halides has been developed using the theory of lattice potential and the concept of volume dependence of the short-range force constant. The derivation of this equation of state involved the use of the third-order approximation of the lattice potential. A comparative analysis was conducted between the isothermal equations of state, including Vinet EOS, Murnaghan EOS, Holzapfel EOS, Born-Mie EOS, Birch-Murnaghan EOS, and the newly derived NEOS. The NEOS was used to analyze the compression behavior of Halides, and it was found that Vinet EOS and NEOS agreed with the experimental data for Halides up to high compression. However, Murnaghan EOS, Born-Mie EOS, Holzapfel EOS, and Birch-Murnaghan EOS are usually less sensitive to calculating pressure at high compression. It was also observed that for some Halides, such as NaBr and NaI, Vinet EOS could not produce results consistent with experimental findings. In contrast, NEOS consistently produced results that matched the experimental findings for all Halides samples, unequivocally demonstrating its reliability and accuracy.
The Low-Temperature Growth of Carbon Nanotubes Using Nickel Catalyst
Authors: Abdisaidov Ilyos J. , Gulomjanova Sevara G. , Khudaykulov Ilyos Kh. , Ashurov Khatam B.
Published: November 2024

This study presents the results of a comprehensive investigation into the fabrication of single-walled carbon nanotubes (SWCNTs) employing chemical vapor deposition (CVD) technique, with nickel nanoparticles serving as crucial catalysts. These nanoparticles are synthesized via the reduction of oxide precursors using hydrogen and are strategically incorporated with ethanol vapor as the primary carbon source. The effectiveness and reproducibility of this synthesis method are thoroughly validated using advanced analytical techniques. Particularly noteworthy is the demonstrated ability to conduct the process at relatively low temperatures, not exceeding 500°C, which is of significant importance. Such precise control over synthesis conditions not only augurs well for the scalability of SWCNT production but also carries substantial implications for the advancement of nanomaterial synthesis methodologies.
Impact of Temperature, Irradiation Duration on Performance of Organic/Ru-Dye/Inorganic Solar Cells
Authors: Al-Dmour Hmoud
Published: November 2024

This study investigates the impact of ambient conditions on the performance of P3HT/Ru-dye/nc-TiO2 solar cells (TLSCs). It has been found that the increase of temperature and irradiation duration affect on the parameters of TLSCs. When the temperature was increased from 293 k to 393 k , the short circuit current density (Jsc ) and open circuit voltgae (Voc) decrease from 2.2 to 1.7 mA/cm2 and 0.7 V to 0.5 V respectively. That is attributed to the effect of high temperature on recombination of photo-generated charges and reduction of shunt resistance (Rsh ) in the TLSC. Moreover, we also present the effect of irradiation duration on performance of the TLSCs. The measurement reveals that Jsc decreased by 0.5 mA/cm2 while Voc decreased by ~ 0.18 V during 4800 s illumination. This decrease suggests the filling of traps or defects at the interface with photo-genertated charges. Finally, the maximum output power of TLSCs dropped by almost half within 6 days during a 20-day test because of affecting atmosphere moisture on the interface properties between dye/ nc-TiO2 and P3HT.
Radiation of Electromagnetic Waves by Regular and Biconical Dipoles with Variable Distributed Surface Impedance and Arbitrary Excitation
Authors: Nesterenko Mikhail V. , Katrich Victor A. , Arkusha Yurii V. , Katrich Vladimir V.
Published: November 2024

An approximate analytical solution of a problem concerning the radiation of electromagnetic waves by regular and biconical dipoles with constant and variable complex distributed surface impedance and arbitrary excitation is derived. Solution correctness is confirm by satisfactory agreement of experimental and numerical results from well-known literary sources. Numerical results are given for the input characteristics and radiation fields of the dipoles in the cases of its symmetric and asymmetric excitation by a point source.
Influence of Phthalic Acid on the Process of Dendrite Development in Low-Density Polyethylene During Electrical Breakdown
Authors: Zeynalov Sh.A. , Vezirov H.N. , Kerimov F.Sh. , Safarova S.I. , Gulmamedov K.J. , Alekperov A.S.
Published: November 2024

The presented work presents the results of a study on the effect of small amounts of phthalic acid additives on dendrite formation in low-density polyethene (LDPE). Based on the results obtained, it is shown that the dendrite resistance of LDPE, as expected, increases with the introduction of 0.05 wt% phthalic acid. The established increase in dendrite resistance of LDPE with the introduction of phthalic acid can primarily be explained based on a decrease in inhomogeneities in the form of air pores as a result of accelerated structure formation and the emergence of a more homogeneous supramolecular structure. It was revealed that an increase in dendrite resistance correlates with an improvement in the dielectric characteristics of the composition. The influence of mechanical load on the development of dendrites in polymer dielectrics has been studied. As a result of studying the growth of dendrites in LDPE samples and its optimal composition subjected to unilateral stretching, it was found that under the influence of mechanical tensile stresses, the shape of the surface delimiting tree-like shoots changes, this surface is flattened in the direction of stretching. It has been shown that the rate of dendrite growth increases as mechanical tensile forces increase.
Modeling steganocontent extraction attempts with different lengths stack sampling series of images blocks
Authors: Honcharov Mykyta , Pavlova Larysa , Lesnaya Yulia
Published: November 2024

The results obtained by using different lengths of sample stacks of runs in simulating the attempts of unauthorized extraction (attack) of steganocontent "protected" by implementing the mechanism of inter-block multiplexing of the parameters of the run lengths of image blocks have been considered in the article. The relationship between the parameters of processing the content (namely, halftone images) and the number of series, as well as the combinatorics of the component elements of the obtained pairs of series parameters, which are the objects of inter-block multiplexing has been demonstrated. It is concluded that the simultaneous use of 2-level data multiplexing significantly extends the capabilities to withstand content attack attempts. It has been found that the use of blocks of higher dimensionality, significantly reduces the role current parameters of the series reliance (base) blocks, in breaking the structure of the original images (those. original content). It is noted that use of two levels of multiplexing of output data at once significantly increases the resistance of the content to attempts at its unauthorized extraction, leading to large distortions in the attacked image, in case of incorrect selection of the active processing parameters.
Global dynamics of the IPO market: structural analysis and growth prospects
Authors: Shkodina Iryna , Kondratenko Natalia
Published: November 2024

The global IPO (Initial Public Offering) market continues to play a critical role in raising capital for companies across various economic sectors. However, its dynamics remain ambiguous due to cyclical fluctuations driven by economic, financial, and regulatory factors. The relevance of this topic lies in the increasing importance of understanding the forces shaping IPO success, given the globalization of financial markets and growing competition. A thorough examination of the factors that determine IPO performance and the future prospects of this mechanism is vital for stakeholders.The purpose of this paper is to conduct a comprehensive structural analysis of the global IPO market's dynamics, identify the key drivers of its development, explore regional differences, and assess the market’s growth potential amid ongoing global transformations. The focus of the study is the global IPO market, with particular attention to its economic, financial, and regulatory dimensions.The methodological approach centers on structural market analysis, utilizing statistical and comparative methods to explore market dynamics across different regions. The research is further grounded in an analysis of macroeconomic indicators, regulatory changes, investment trends, and technological advancements that influence the IPO market.This study examines the impact of financial market globalization, regulatory adjustments, and technological innovations on the development of IPOs in various regions worldwide. The role of macroeconomic stability, interest rates, and market volatility in shaping IPO demand is also explored. In addition, the research delves into sectoral differences and regional trends, particularly the activity of IPO markets in the U.S., Europe, and Asia.The conclusion addresses the growth prospects of the global IPO market amid continuous shifts in the global economy and provides practical recommendations for companies considering public offerings and investors interested in IPO market opportunities. The study highlights how firms can navigate these volatile conditions and what investors should consider when participating in IPOs.
Retrospective analysis of medication-related osteonecrosis of the jaw at a maxillofacial prosthetics clinic
Authors: Ali Islam E. , Towithelertkul Cheewin , Sumita Yuka , Wakabayashi Noriyuki
Published: November 2024

Purpose: Medication-related osteonecrosis of the jaw (MRONJ) poses significant challenges in patient care because of its complex etiology, clinical manifestations, and management. This study aims to provide an overview of patients with MRONJ treated at our clinic over the past 12 years, highlighting incidence, clinical characteristics, and prosthetic treatment outcomes.
Materials and Methods: The study included patients with MRONJ who visited our clinic between January 2012 and April 2024. Data on demographic characteristics, lesion location, clinical presentation, primary diseases, prosthetic management and medications were collected from health records.
Results: This retrospective analysis of cases of MRONJ over 12 years at a maxillofacial prosthetics clinic reveals a rising prevalence of the condition, particularly in the elderly, with treatments for breast and prostate cancer emerging as prominent risk factors. Distinct medication-specific effects on distribution of lesions suggest variation in pathogenic mechanisms, which require tailored treatment strategies. Management strategies encompass a spectrum of interventions from conservative measures to prosthetic rehabilitation, highlighting the importance of interdisciplinary collaboration and personalized care.
Conclusion: The rising incidence of MRONJ, especially among elderly patients, indicates the need for enhanced preventive measures and interdisciplinary care. Breast and prostate cancer treatments are significant risk factors, necessitating tailored monitoring. Effective prosthetic management is crucial for improving oral function and quality of life in MRONJ patients.
INPUTS AND OUTPUTS OF HIGHER EDUCATION: A READING OF THE ALGERIAN HIGHER EDUCATION SYSTEM IN THE LIGHT OF THE KNOWLEDGE INDEX
Authors: Mohammed Grinat , Hamid Bouzida , Fatiha El Djouzi
Published: November 2024

Objective: The purpose of this research is to assess and understand the condition and difficulties facing the education system, in Algeria in light of the knowledge economy, with particular focus on the alignment between university outputs and labor market demands.
 
Theoretical Framework: The study is based on the concept of the knowledge based economy model which underscores the pressing requirement for institutions to adjust to progress and changing economic landscapes. It examines the relationship between higher education outcomes and economic development in developing nations.
 
Method: The study employs an analytical approach to evaluate Algeria's higher education system, examining public spending patterns, graduate employment rates, and the alignment between academic programs and market needs.
 
Results and Discussion: The results indicate that with rises, in funding, for public education and enhancements educational inputs, Algeria faces persistent challenges: (1) high unemployment rates among university graduates, (2) misalignment between academic training and industry requirements, and (3) limited focus on entrepreneurship and innovation in university curricula.
 
Research Implications: The study recommends strategic reforms including: (1) reorienting universities toward entrepreneurship education, (2) strengthening research and innovation capabilities, and (3) developing learning environments that foster creativity and practical skills. These changes aim to shift from a purely employment-focused model to one that emphasizes job creation.
 
Originality/Value: In this study a thorough examination of the education system, in Algeria is presented within the framework of the knowledge economy., offering evidence-based recommendations for transforming universities from institutions that prepare job seekers to centers that create job creators, thereby contributing to sustainable economic development.
College Students Career Planning Education System Construction Strategy
Authors: Xie Xianpan
Published: November 2024

Career planning is an important foundation for college students to achieve high-quality employment. Entering the new era, college students are facing a brand new employment environment. To adapt to the changes in employment, colleges and universities should update the career planning education system promptly, enhance students’ employment competitiveness, and help students achieve high-quality employment. Based on this, this paper studies the construction strategies of the career planning education system in colleges and universities. The paper first analyzes the value of the construction of the career planning education system, and then expounds the main problems at present. On this basis, the paper puts forward specific strategies to help college students plan their careers scientifically and promote their good development.
Application of Big Data in Digital Currency and Blockchain Finance
Authors: Xiu Zhengkun
Published: November 2024

With the rise of emerging economic models, the cryptocurrency system, centered on the internet and electronization, is gradually returning to its core functions — storage, data processing, and related services. The deep value of massive data lies in rapid mining to uncover its inherent patterns, which is not only crucial for the operation, regulation, and monetary policy implementation of cryptocurrencies but also serves as an essential support for the transition from paper money to digital currencies. Given this, this research plans to conduct a detailed exploration of the application of big data in the field of cryptocurrency and blockchain finance, aiming to contribute to the continuous progress of China’s financial industry.
L2 Learners’ Perspectives on Data-Driven Learning for Identifying Properties of Near-Synonymous Words: A Convergent Mixed-Methods Study
Authors: Söğüt Sibel
Published: November 2024

This study examines second language (L2) learners’ perspectives regarding the affordances and challenges of using the Data-Driven Learning (DDL) to identify the properties of near-synonymous words. Employing a convergent mixed-method design, this study deciphers the perceptions of 40 undergraduate L2 learners majoring in English language teaching. After an initial identification of the learners’ vocabulary levels, the experienced benefits and barriers associated with carrying out experiential tasks were elicited via questionnaire data and open-ended survey questions. Descriptive statistics, including means and standard deviations, were revealed and thematic analyses of the responses to the survey questions were documented. The results indicate that completing tasks through the corpus was found to enhance their knowledge of collocations. Integrating corpus tasks into YouGlish (an online practice tool for authentic spoken English in context) was found to increase their awareness of the contextual properties of words. The identification of condensed language exposure, lexical inference, and elicitation of flexible and context-specific patterns were reported to be beneficial. Acknowledging these benefits, gaining familiarity with the corpus interface, encountering limited access to search queries, and analyzing large amounts of concordance lines posed challenges for learners. This research presents the implementation of the DDL supported by experiential learning, contextually rich input, and inductive reasoning tasks in vocabulary learning by further offering instructional implications in L2 contexts.
Sources of sand material for coastal protection of the Baltic Spit seashore
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, Zakirov R.B. , Chubarenko B.V. , Burnashov E.M.
Published: November 2024

The purpose of the article is to calculate the volume of sand material required for coastal protection of the eroded section of the shore of the Baltic Spit (South-Eastern Baltic, Kaliningrad Oblast), discuss possible sources of sand material and compare the positive and negative aspects of their use. A scheme of the best effective planned protection structure and the current state of the already installed coast assessed using GIS tools. It was found that the implementation of a comprehensive coastal protection project requires from 100 thousand to 200 thousand m3 of sand material. As sources of material, the along-beach bypassing was considered, as well as the use of extra material – either material from dredging the Kaliningrad Sea Canal, or the sea bottom sediments of the near-inlet surge delta in the Vistula Lagoon. Along-beach bypass and the use of surge delta material are the cheapest and most expensive methods, respectively, and both require a special assessment of the consequences of their use. The use of dredging material (or rather, the changing the area of its discharge) may turn out to be the most optimal, because the entire process for dredging and dumping of the material into the marine environment has already been established technically and legally, but it will require serious investments in organizing a refill station. In principle, any approach with the addition of sandy material from external sources to the alongshore transport system is most attractive due to the sustainability of this coastal protection solution. The work was carried out with the support of the topic no. FM-2024-0025 of the state assignment of the Shirshov Institute of Oceanology, Russian Academy of Sciences. The authors express their gratitude to colleagues from SBO KO “Baltbergozashchita” for the data provided.
Linear growth of young Romanov breed and its crossbreeds with Edilbaevskaya
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, Kosilov V.I. , Mamedov A.A.O. , Sherstyuk M.V. , NIKONOVA E.A. , Khaziev D.D. , MIRONOVA I.V. , Gazeev I.R.  , Galeeva Z.A.  , ULDASHBAYEVА A.YU.
Published: November 2024

The article presents the results of studying the linear growth of lambs and gelded lambs of the Romanov breed (group I), its first generation crossbreeds with Edilbai - ½ Romanov × ½ Edilbai (group II) and the second generation ¼ Romanov × ¾ Edilbai (group III). It was found that due to the manifestation of the crossing effect, the crossbreed gelded lambs of groups II and III exceeded in size all measurements of the body articles of purebred peers of group I. At the same time, the circumference of the chest behind the shoulder blades, the oblique length of the trunk, the width and depth of the chest were characterized by the highest intensity of height measurements, as well as the circumference of the pastern increased less intensively with age.
Dynamics of live weight of Karakul lambs when using the probiotic feed additive «Felutsen»
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, Arilov A.N. , Amerkhanov M.H.
Published: November 2024

The effect of the probiotic feed additive “Fe- lucene” on the dynamics of the live weight of Karakul sheep at the age of 4-6-8 months was studied
Efficiency of application of protected form of methionine in young sheep diets
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, Herbeik Ali , Bogolyubova N.V. , Romanov V.N. , Buryakov N.P.
Published: November 2024

The effectiveness of using the developed protected form of betaine in the diets of young sheep of the Romanov breed was studied and the effect on biochemical and clinical blood parameters, resistance, and productive qualities was established.