bluuebunny/crossref_metadata_2025 huggingface dataset:
ORGANIZATIONAL FORMS OF QUALIFICATION IMPROVEMENT FOR PRIMARY SCHOOL TEACHERS IN WESTERN REGIONS OF UKRAINE (1970s-1980s)
Authors: Bilavych Halyna
Published: November 2023

This article addresses the issue of postgraduate education for teachers in its historical development in the western regions of Ukraine. Despite the challenging conditions for the development of Ukrainian pedagogical education during wartime, the problems of quality training and retraining for primary school teachers remain relevant. Pedagogical education is the strong foundation on which all educational reforms, including the New Ukrainian School, are based. For Ukraine, which is evolving in the context of European educational processes, the issue of continuous pedagogical education (lifelong learning) is crucial. Ukrainian educational theory and practice have accumulated certain experience in the development of postgraduate education, particularly in the western region of Ukraine in the 20th century (Ivano-Frankivsk, Ternopil, Chernivtsi, Lviv, Zakarpattia, Rivne, Volyn regions). Continuous pedagogical education for primary school teachers in the western regions of Ukraine in the 1970s-1980s was provided by regional institutes for teacher improvement. The development of the postgraduate education system was based on relevant legislation. In addition to traditional forms of qualification improvement (courses for primary school teachers), various lectures, seminars, conferences, elective and practical classes, individual and group consultations, exams, excursions, and organizing teaching practice in the best schools in each region were conducted. Technical teaching aids and computers were actively used, along with role-playing and business games, lesson simulations, and more. This organizational work was particularly intensified after the educational reform in 1985. Special attention was given to the promotion of advanced pedagogical experience, which was studied, disseminated, and contributed to the professional development and self-education of teachers. Still relevant and requiring separate additional research is, for example, the experience of Yavoriv Secondary School (headed by the pedagogical innovator P. Losyuk) and the experience of Serednoberezhivska Secondary School (headed by the pedagogical innovator V. Bilavych) in the Kosiv district of Ivano-Frankivsk region, which researchers during the studied period considered as an important organizational form of postgraduate education for teachers.
Manuel Larrú Salazar; Sara Viera Mendoza & Eduardo Huaytán Martínez. Nuevos caminos de la crítica. La investigación literaria en San Marcos [1.a ed. digital]. Lima: Fondo Editorial de la Universidad Nacional Mayor de San Marcos & Facultad de Letras y Ciencias Humanas de la Universidad Nacional Mayor de San Marcos, 2021, 198 pp.
Authors: Vilchez Bejarano Yuri Jesús
Published: November 2023

En los últimos diez años, se ha producido un aumento significativo de investigaciones que analizan las tesis sustentadas en las universidades peruanas. Este fenómeno sobre todo se evidencia en las carreras pertenecientes a las ciencias de la salud, prueba de ello son los diversos artículos al respecto. Este auge pareciera ser un efecto de las exigencias que la Sunedu ha impuesto a las universidades privadas y públicas como parte del proceso de reforma iniciada en el 2014 en el Perú. Sin embargo, estos estudios son también el síntoma de los cambios de paradigmas educativos en el nivel superior, que se reflejan en, por ejemplo, la necesidad de revisar y reformular los contenidos, los métodos y los procesos que conducen a la sustentación de una tesis. En este ambiente, pero desde las ciencias humanas, se inscribe el libro Nuevos caminos de la crítica. La investigación literaria en San Marcos (2006 - 2016), de Manuel Larrú Salazar, Sara Viera Mendoza y Eduardo Huaytán Martínez, ambicioso estudio sobre las tesis de pregrado de la escuela de Literatura de la Universidad Nacional Mayor de San Marcos.
El duelo como elemento literario en la cuentística de Julio Ramón Ribeyro
Authors: Enciso Bernales Ramiro José
Published: November 2023

En el presente artículo se analiza al duelo como un elemento fundamental en la construcción de la narrativa de Julio Ramón Ribeyro. Por esta razón, el objetivo de este estudio es identificar de qué forma el duelo afecta a sus personajes llevándolos a realizar acciones que resultan determinantes en la trama de la historia. Para este propósito, se analizarán los siguientes cuentos “La vida gris”, “Los gallinazos sin plumas”, “Al pie del acantilado”, “Te querré eternamente”, “Cuando no sea más que sombra”, “Página de un diario” y “Los otros”. Asimismo, para reconocer y definir las etapas del duelo, se recurrirá a los estudios de la doctora Kübler-Ross en su libro Sobre la muerte y los moribundos (1969). Con ello evidenciaremos el rol relevante del duelo en los personajes ribeyrianos y el impacto que esto genera en sus acciones dentro del cuento.
Desde aguas profundas o el Complejo de Ofelia en O lustre, de Clarice Lispector
Authors: Alonso Mariângela
Published: November 2023

El presente estudio reflexiona sobre las imágenes del agua y la presencia del llamado “Complejo de Ofelia” en la novela O lustre (1946), de Clarice Lispector. Buscamos reconocer el papel de la muerte en aguas turbias en la textura de la trama y en la constitución del personaje Virgínia. Para ello, nos apoyamos en las teorizaciones de Gaston Bachelard (1997) en torno al “Complejo de Ofelia” y de otros estudiosos que se han dedicado al tema.
Arguedas y la música andina, otro componente de su poética
Authors: Monteza Arredondo Jorge Alberto
Published: November 2023

Este trabajo es un análisis en torno a la poética arguediana. Los aportes más importantes sobre el tema provienen de Antonio Melis (poética del bilingüismo) y Fernando Rivera (poética de la traducción). Aquí planteamos una ampliación de este campo sosteniendo que en la obra narrativa arguediana existe un conglomerado de tropos alusivos a la música, el canto y la danza andinos que estructuran la composición de dicha narrativa y funcionan de manera sistémica. “Esto se revela como un componente más de la poética arguediana y, además, guarda correlación la idea de nación subyacente en su obra”.
Archives of Lithuanian Latvian Families: the Case of the Dundurnieki Starkus
Authors: Vasiliauskas Ernestas
Published: November 2023

The article presents the Starkus (Latvian: Starks) family of farmers from the Daunorava (Latvian: Dundurmuiža, German: Donnerhof) Latvian dundurnieki community in Bertaučiai Village, Joniškis Parish, and the research sources on the subject matter. The research covers the following issues: (1) the 18th–19th century sources of family origin in memory preservation institutions, problem of the family origin and genealogy, the most well-known members of the family; (2) farms and sources of community demographics; (3) egodocuments and their specific features (photography collection, memoirs, diaries and letters) reflecting the economic, cultural, and social life of the community, reminiscences and genealogy of the family, kinship, and everyday activities. The sources used for the research are divided into the following categories: (1) documents in memory preservation institutions (documents of Daunorava Manor in the Latvian State Historical Archive, the Lithuanian State Historical Archives, and the Lithuanian State Central Archives: manor inventories from 1779–1797; census of souls from 1795–1834; farm censuses of 1846 and 1860; other documents from the first half of the 20th century); (2) egodocuments (1941–2007) of the Starkus Family: memoirs of the three generations of women – mother, daughter and granddaughter-niece; letters from Siberia (1948–1950); diaries of the secret agent, son-in-law Voldemaras Briedis (Voldemārs Briedis, 1944–1949); photographs from personal albums (from beginning of the 20th century to the 1970s, 285 pieces), with all digital copies stored in Aušros Museum in Šiauliai.

The analysis of the Starkus case enables addressing the issue of the origin of the Latvian community of Daunorava. The community began to dominate in the area in the 18th century after massive arrival of people from Rindzele and Lēne Manors owned by German barons von der Brüggen and, possibly, from Rideļi and Balklāvi Manors owned by their relatives von Hohenastenberg gen. Wigandt in the Duchy of Courland and Semigallia. The movement most probably occurred after the plague outbreak in 1709–1710 amid the Great Northern War, when new inhabitants settled or were resettled into the considerably depopulated countryside. The question of origin may also be partly answered by means of the genealogical method, which reveals that, in the mid-18th century, most of the dundurnieki families (the Starkus, the Kaseliūnas (Latvian: Kaseļūns), the Bulis (Latvian: Bullis), the Krūminis (Latvian: Krūmiņš), the Užtupiai (Latvian: Užtupis)) had a single ancestor. The question that remains to be answered is whether a single, but well-documented case of one family can reflect the life of the community as a whole. Although comprehensive reminiscences about individual communities are lacking, several well-documented family stories can also give insight into the micro-history of the entire dundurnieki community and identify methodological access to and problems with this type of research.
Hemothorax Caused by Liver Biopsy – Rare Iatrogenic Complication
Authors: Samiatina-Morkūnienė Diana , Silickytė Rūta , Jankauskaitė Gabija
Published: November 2023

Liver biopsy is the most accurate interventional procedure to diagnose hepatic diseases. According to the information provided by the Institute of Hygiene, 968 percutaneous liver biopsies were performed in Lithuania in 2022. The Lithuanian scientific literature does not, however, publish information on complications associated with this procedure. According to international literature, the frequency of complications after this procedure ranges from 2.4% to 9.5%. The most common are mild complications: hematomas, fever, pain at the biopsy site. Particularly rare are hemothorax, pneumothorax, damage to the organs of the thoracic and abdominal cavity, which occur in up to 0.04% of cases. This article presents an extremely rare complication – liver biopsy induced hemothorax, whose success was determined by early diagnosis and timely surgical intervention.
Establishing the causes of premature failure of composite reinforcement with unidirectional discrete fibers
Authors:   Lviv Polytechnic National University, Kovbasiuk Taras , Tepla Tetiana ,   Lviv Polytechnic National University, Palchevskyi Maxim
Published: November 2023

The structure and properties of reinforcement made of composite material is analyzed. The structure and elemental composition of the studied material was examined by the optical and electron microscopy. It has been established that the basis of the studied reinforcement is a composition consisting of CaСO3 and SiO2. The elemental composition of reinforcing fibers includes SiO2, Al2O3, CaSiO3 and pure Si. The presence of cracks in the fiberglass composite was also found. The strength of reinforcement under static tension has been studied. A quantitative assessment of the structure of the studied composite material has been carried out. Based on the results of the analysis, it was found that the distribution of fibers along the Feret diameter is uniform. The causes of premature destruction of composite reinforcement are established and recommendations are given for changing the reinforcement mechanism to improve operational properties.
Effects in Gd2O3 and Glass Substrates on the Resistance of Fe Nanoscale Films to Direct Current (DC) Voltage
Authors:   Frantsevich Institute for Problems of Materials Sciences of NAS of Ukraine, Korotkov Kostyantyn , Kasumov Anatoliy ,   Frantsevich Institute for Problems of Materials Sciences of NAS of Ukraine, Dmitriev Aleksander ,   Frantsevich Institute for Problems of Materials Sciences of NAS of Ukraine
Published: November 2023

Thin films of ferromagnetic metal Fe are promising for applications in nanotechnology due to their unique galvanomagnetic, magneto-optical, magneto-conductive and other properties. Understanding the characteristics of film properties under different operating conditions expands the range of practical applications.
Interaction Cerium Oxide with Lanthanum and Neodium at 1500°C
Authors:   Frantsevich Institute for Problems of Materials Sciences of NAS of Ukraine, Yushkevich Sergey , Korniienko Oksana ,   Frantsevich Institute for Problems of Materials Sciences of NAS of Ukraine, Pavlenko Olesia ,   Frantsevich Institute for Problems of Materials Sciences of NAS of Ukraine, Olifan Olena ,   Frantsevich Institute for Problems of Materials Sciences of NAS of Ukraine, Samelyuk Anatoliy ,   Frantsevich Institute for Problems of Materials Sciences of NAS of Ukraine, Subbota Irina ,   National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
Published: November 2023

The phase equilibria in the ternary system CeO2–La2O3–Nd2O were systematically studied at a temperature of 1500°C, covering the entire concentration range. No new phases were identified within the specified system. An isothermal section of the phase diagram for the CeO2–LaO2–Nd2O3 ternary system was constructed. The investigation revealed the formation of solid solutions, including cubic solid solutions with a fluorite-type structure F-CeO2, as well as solid solutions based on the hexagonal (A) and cubic (C) modifications of Ln2O3. The phase fields and crystal lattice periods of the formed phases were determined for all investigated systems.
Electron-Beam Casting Technology for Production of Non-Standard Titanium Alloys for Experimental Production and Additive Technologies
Authors:   Physico-Technological Institute of Metals and Alloys of NAS of Ukraine, Voron Mykhailo , Schwab Serhiy ,   E.O. Paton Electric Welding Institute of NAS of Ukraine, Selin Roman ,   E.O. Paton Electric Welding Institute of NAS of Ukraine
Published: November 2023

There are many tasks for modern materials development and their production. Experimental materials, especially multicomponent and complex-alloyed titanium-based compositions, are really hard and expensive to obtain. In that case, electron-beam casting technology is one of the most useful method to produce such materials in semi-commercial amount up to 2-10 kg. So, it makes possible to investigate technological properties of melt, get necessary number of specimens and to prepare details for coatings depositions or additional products like powders for 3D printing.
Influence of Structural Factor on Mechanical Characteristics of Austenitic Steels in Liquid Lead at Elevated Temperatures
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Kukhar Ivan
Published: November 2023

The influence of the structural factor (grain size) on the mechanical characteristics of austenitic steel (Fe–18Cr–10Ni–1Ti) in a vacuum and a liquid lead medium was studied. It was shown that increase in grain size of austenitic steel shows a slight decrease in the tensile strength of material in both vacuum and liquid lead. Plasticity (elongation) also decreases both with increasing grain size and with increasing temperature.
Fracture Peculiarities of Nitinol under Low-Cycle Fatigue
Authors:   Ternopil Ivan Puluj National Technical University, Budz Volodymyr , Krechkovska Halyna ,   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Iasnii Volodymyr ,   Ternopil Ivan Puluj National Technical University
Published: November 2023

The features of fracture of shape memory alloy samples (nitinol) under low-cycle fatigue with different load frequencies were investigated. The frequency dependences of such indicators as the number of cycles before the destruction of the samples, and the maximum and residual deformation, respectively, before and after their destruction, were analyzed. It is shown fractographically that the mechanism of fatigue failure of specimens depends on the frequency of loading.
Mechanical Energy Absorption Ability of Titanium Porous Structures Produced by Powder Metallurgy Approach
Authors:   G.V. Kurdyumov Institute for Metal Physics of NAS of Ukraine, Stasiuk Oleksandr , Oryshych Denys ,   G.V. Kurdyumov Institute for Metal Physics of NAS of Ukraine
Published: November 2023

Porous materials are very efficient in absorbing mechanical energy, for instance, in combined armor, in order to improve the anti-ballistic protection characteristics. In the present study, porous titanium-based structures were manufactured via powder metallurgy methods using titanium hydride (TiH2) powder, which provided activated sintering, owing to dehydrogenation. The emission of hydrogen and shrinkage of powder particles on dehydrogenation also added a potential to control the sintering process and create desirable porosities. TiH2 powder was sintered with additions of ammonium as pore holding removable agents. The microstructures and porosities of sintered dehydrogenated titanium with different concentration ammonium were comparatively studied. Mechanical characteristics were evaluated using compression testing with strain rates varying from quasi-static to high levels. All testing methods were aimed at characterizing the energy-absorbing ability of the obtained porous structures. The desired strength, plasticity and energy-absorbing characteristics of porous titanium based structures were assessed, and the possibilities of their application were also discussed.
Deposition of Calcium Phosphate Coating on Titanium Depends on Electrolyte Composition
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Proskurniak Roman , Tkachuk Oleh ,   Karpenko Physico-Mechanical Institute of NAS of Ukraine
Published: November 2023

The influence of the concentration (0.5M…2M) of potassium hydroxide on the formation of calcium phosphate coatings on commercially pure titanium was investigated. They were deposited by the method of plasma electrolytic oxidation at the applied voltage of 160 V for 1 min. The phase composition, morphology and corrosion behaviour of the coatings in a physiological environment were studied. It was shown that the coatings formed at 1M and 2M KOH, when the predominant phases are hydroxyapatite or calcium titanate, have the optimal surface characteristics.
Features of Chronoamperometric Studies of Water Sorbent Materials
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Vlad Khrystyna
Published: November 2023

The present study examines the constant potential discharge method at –0.6 V (CPD) for three different hydrogen absorbing materials: nano-Ni-C synthesized from polystyrene and metal salts using the pyrolysis method; Ni-Raney obtained through leaching, and La3MgNi14 alloy are prepared by sintering and prolonged heat treatment. Each of the samples corresponds to distinct time domains (according to the theory of the method under consideration), indicating different mechanisms diffusion and hydrogen diffusion coefficients.
DFT Study of Point Defects in Yttrium Aluminum Garnet Doped with Carbon
Authors:   Institute for Single Crystals of NAS of Ukraine, Hermash K. V. , Fil D. V. ,   Institute for Single Crystals of NAS of Ukraine,   V. N. Karazin Kharkiv National University
Published: November 2023

Point defects in the YAG crystal are studied using the density functional approach as implemented in the open source SIESTA code. The formation energies of native point defects and C substitution and interstitial defects are computed. The concentrations of charged point defects are found from the overall charge neutrality condition. The defect energy levels in the band gap are obtained.
Microstructure and Mechanical Properties of Low Cost Beta Ti–2.8Al–5.1Mo–4.9Fe Titanium Alloy Welded Joints
Authors:   E.O. Paton Electric Welding Institute of NAS of Ukraine, Selin Roman , Schwab Serhiy ,   E.O. Paton Electric Welding Institute of NAS of Ukraine
Published: November 2023

Titanium is the material of choice for high performances components, due to the combination of physical and mechanical properties. Nevertheless, it is also characterized by very high production costs. One way to reduce the cost of titanium is to use cheaper alloying elements instead of vanadium or niobium to stabilize the body-centered-cubic β-phase. TIG-welding of low-cost titanium alloys is complicated due to the high content of alloying elements, as well as the use of oxygen as an alloying element.
Influence of Air Pressure on the Properties of Arc Coatings
Authors:   Karpenko Physico-Mechanical Institute of the NAS of Ukraine, Hvozdetskyi Volodymyr , Zadorozhna Khrystyna ,   Karpenko Physico-Mechanical Institute of the NAS of Ukraine, Artym Taras ,   Karpenko Physico-Mechanical Institute of the NAS of Ukraine, Trembach Bohdan ,   Novokramatorsky Mashinostroitelny Zavod, Trembach Illia ,   Novokramatorsky Mashinostroitelny Zavod
Published: November 2023

The change in properties of coatings sprayed using the electric arc metallization method was studied. It has been found that the pressure of the air jet increases, the size of the droplets decreases, and their speed increases. It was found that a higher speed of droplets at increased air pressure helps to reduce the time of air contact with them and increase the thickness of their oxides. It was found that with such a surfacing mode of the coating, the structure improves and the mechanical properties increase.
Tribological Properties of Tin And Crn Cathodic Arc Coatings on Ti-6al-4v Alloy
Authors:   National Science Center Kharkiv Institute of Physics and Technology, Klimenko Illia , Belous Vitalii ,   National Science Center Kharkiv Institute of Physics and Technology, Ovcharenko Valerii ,   National Science Center Kharkiv Institute of Physics and Technology, Tolmachova Halyna ,   National Science Center Kharkiv Institute of Physics and Technology, Kuprin Oleksandr ,   National Science Center Kharkiv Institute of Physics and Technology, Podhurska Victoria ,   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Ishchenko Mykhaolo ,   JSC “Ukrainian Energy Machines”, Babayev Ivan ,   JSC “Ukrainian Energy Machines”
Published: November 2023

Tribological properties of TiN and CrN coatings deposited by cathodic arc method at three different bias potentials -50, -150 and -300V on Ti-6Al-4V alloy in pair with alumina have been investigated. The wear rate of the coatings is more than an order of magnitude lower than for the titanium alloy substrate. The friction coefficient is in the range of 0.4-0.8 for TiN coatings and 0.5 for CrN coatings. Coatings deposited at a potential of -50 V show optimal tribological properties.
Development of Protective Coating for Molten Carbonate Fuel Cell Current Collector
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Podhurska Viktoriya , Shuhayeu Pavel ,   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Kuprin Oleksander ,   National Science Center “”Kharkiv Institute of Physics and Technology””, Milewski Jaroslav ,   Warsaw University of Technology
Published: November 2023

A coating based on chromium nitride is applied to the stainless steel substrates. The microstructure and properties of coatings in their initial state and after long-term oxidation in the air at 600°C were studied. It has been found that the textured chromium nitride coating has better oxidation resistance and can be proposed as a protective coating for the molten carbonate fuel cell current collector.
The Anti-Corrosion Performances of the Eco-Friendly Composition Based on Gum Arabic and Zinc Acetate for Low-Alloy Steel
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Danyliak Mariia-Olena
Published: November 2023

Inhibitory properties of an eco-friendly composition based on gum arabic polysaccharide and acetate acid salt – zinc acetate for increasing the corrosion resistance of low-alloy steel in a neutral environment were investigated by electrochemical impedance spectroscopy method. It was established that the inhibitory efficiency of the composition is enhanced with increasing concentration and reaches a maximum at 2.0 g/l of each component. It was shown that the inhibitor efficiency for protection of the steel after 24 h immersion in a 0.1% NaCl solution was 97.7 %.
Plate-Like Heat Exchangers Resistance Made of Alloy 06KhN28MDT (Similator to AISI904L Steel) to Crevice Corrosion
Authors:   National University “Zaporizhzhia Polytechnic”, Dzhus Anna , Narivskyi Oleksiy ,   “Ukrspetsmash” LLC, Snizhnoi Gennadii ,   “Ukrspetsmash” LLC, Pulina Tetiana ,   “Ukrspetsmash” LLC, Snizhnoi Valentyn ,   Zaporizhzhia National University, Sheyko Sergiy ,   Zaporizhzhia National University
Published: November 2023

Plate-like heat exchangers made of the 06KhN28MDT alloy (similar to AISI904L steel) in the production of different acids are used. It can be exposed to crevice corrosion between the corrugations of adjacent heat transfer plates of plate-like heat exchangers. In the article, the resistance of the alloy to crevice corrosion in model circulating waters has been investigated. For production melts of the 06KhN28MDT alloy with a minimum content of C and a maximum of Cr, Mo, Ti and Cu with a mean austenite grain diameter of up to 15 μm are recommended to choose.
Release of Corrosive Gases under Action of Thermal Processing of Solid Carbon-Contained Raw Materials
Authors:   M.S. Poliakov Institute of Geotechnical Mechanics of NAS of Ukraine, Ahaiev Ruslan , Vlasenko Vasyl ,   M.S. Poliakov Institute of Geotechnical Mechanics of NAS of Ukraine, Dudlia Kateryna ,   M.S. Poliakov Institute of Geotechnical Mechanics of NAS of Ukraine, Kliuiev Eduard ,   M.S. Poliakov Institute of Geotechnical Mechanics of NAS of Ukraine
Published: November 2023

The actual problem of providing the Ukrainian chemical industry with the necessary amount of gases with the perspective of using alternative sources, in particular thermal processing of solid carbon-contained raw materials was represented in the article. The influence of various components of the gas phase on the corrosion of metallic materials was shown. The process of release of corrosive gases, such as СО2, О2, СО, Н2 under action of thermal impact on solid carbon-contained raw materials in the temperature range of 400-900°C was studied. Quantitative data about the gases release and their relation to temperature were presented. The obtained results will help to improve the conditions of gas phase transportation in order to reduce the corrosion effect on metal pipe structures.
The Peculiarities of Corrosion-Mechanical Destruction of Welded Joint from Controllable Rolled Steel under Cathodic Polarization
Authors:   E.O. Paton Electric Welding Institute of NAS of Ukraine, Lisovskiy Yurii , Nyrkova Lyudmyla ,   E.O. Paton Electric Welding Institute of NAS of Ukraine, Goncharenko Larysa ,   E.O. Paton Electric Welding Institute of NAS of Ukraine, Feinberg Leonid ,   E.O. Paton Electric Welding Institute of NAS of Ukraine
Published: November 2023

The research results of the resistance to brittle fracture of the welded joint made by arc welding using Sv-08G1NМА wire made of a controllable rolling steel 10G2FB are presented. It was established that due to the high impact toughness of the weld, it was possible to provide satisfactory resistance to brittle fracture of the welded joint in the NS4 solution under cathodic polarization.
Simulation of Creep Crack Growth under the Action of Neutron Irradiation
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Dolinska Iryna , Svirchevskyi Orest ,   Ivan Franko Lviv National University
Published: November 2023

A mathematical model is proposed for estimating the period of subcritical growth of a high-temperature creep crack in materials subjected to neutron irradiation and long-term static loading. The model is based on the energy approach regarding the balance of energy components and the balance of the rates of change of energy components. By presenting the creep rate as linearly dependent on the irradiation dose, a new differential equation of high-temperature creep crack propagation in metals is obtained, taking into account the intense influence of irradiation. The residual durability of a through-crack plate made of 304 steel was evaluated.
Crack Healing in a Transtropic Elastic Body under Torsion
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Filipov Maksym
Published: November 2023

A mathematic model of the healing of cracks in a torsionally deformed transtropic cylinder is developed. The problem is reduced to solving the integral equation regarding the cracked surfaces displacements. An exact analytical solution of the corresponding integral equation is obtained for the case where the crack is filled in the entire volume. The effectiveness of the cylinder reinforcement is determined as a function of the geometric parameters of the crack and the mechanical properties of the injection material after solidification.
Prediction of the Residual Durability of Structural Elements under the Dual Influence of Hydrogen
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Hembara Nazar
Published: November 2023

On the basis of the previously developed calculation model of hydrogen-induced crack growth in metals under the action of long-term static loading under various HELP, HEDE mechanisms, kinetic diagrams of hydrogen cracking of steels were constructed 4340 and 4147 under different hydrogenation regimes. The residual durability of the plate with a crack under dual hydrogen exposure was calculated.
Substantiation of the Possibility of Repairing Sucker
Authors:   PJSC UkrNafta, Stefanyshyn Andriy , Bakun Bohdan ,   Ivano-Frankivsk National Technical University of Oil and Gas, Kopei Ihor ,   Ivano-Frankivsk National Technical University of Oil and Gas, Krechkovska Halyna ,   Karpenko Physico-Mechanical Institute of the NAS of Ukraine, Stefanyshyn Oksana ,   PJSC UkrNafta
Published: November 2023

The technology of restoring sucker rods has been developed and tested on the example of 20N2M steel. At high levels of bending stress applied to samples from restored sucker rods, fatigue life in the environment of formation water was shown to increase by almost an order of magnitude compared to samples from an unused rod. The developed technology makes it possible to extend the service life of sucker rods and the periods between scheduled measures for diagnosing their state.
Hydrogen Embrittlement Behavior of Plastically Pre-Strained and Hydrogen-Charged low alloy Steel
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Hrynenko Mykhailo
Published: November 2023

The paper investigates the effect of high-temperature gaseous hydrogenation of low-alloy 22K steel on its resistance to hydrogen embrittlement (HE). The propensity to hydrogen embrittlement of the studied material was evaluated by determining the hydrogen embrittlement index based on the results of traditional uniaxial tensile tests of hydrogen-free and hydrogen-charged samples. The research was carried out for pre-strain-free and 75% pre-strained samples
Acoustic Plane Wave Scattering From a Truncated Semi-infinite Soft Cone at Axial Incidence
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Lysechko Victor , Trishchuk Oksana ,   Karpenko Physico-Mechanical Institute of NAS of Ukraine
Published: November 2023

The axially symmetric diffraction problem of the plane acoustic wave from the truncated semi-infinite soft cone is considered. The problem is solved rigorously using the analytical regularization procedure. The obtained solution is used to study the cone cut on scattering features.
Diagnostic Algorithm Quality of the State of Underground Metal Structures the Using Neural Networks
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Lozovan Vitalii
Published: November 2023

The underground metal structures function in specific conditions of the soil environment and cyclic mechanical loads. It is necessary to conduct a detailed analysis of underground metal structures and monitor their technical condition, since damage and destruction of structural elements during operation can lead to dangerous and/or catastrophic consequences. Intelligent monitoring systems are able to control the life cycle of underground pipelines based on a comprehensive analysis of their current state, operating loads and the results of interaction with the environment.
Application of the Magneto-Optical Effect in Non-Destructive Testing
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Stasyshyn Ihor , Suriadova Olha ,   Karpenko Physico-Mechanical Institute of NAS of Ukraine
Published: November 2023

The study is based to application of the magneto-optic effect for non-destructive defect detection and material characterization. The magneto-optic effect involves changes in optical radiation due to the influence of a magnetic field on the material. It is a powerful tool for non-destructive material testing with a wide range of industrial applications. Its high sensitivity, non-destructive nature, and ability to provide information about material properties make it promising for future research and innovations.
Investigation of Vibrations in Dry Friction Pair using PNRP Methods
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Sliepko Roman , Yuzefovych Roman ,   Karpenko Physico-Mechanical Institute of NAS of Ukraine,   Lviv Polytechnic National University, Lychak Oleh ,   Karpenko Physico-mechanical Institute of NAS of Ukraine
Published: November 2023

Methods of periodical non-stationary random processes (PNRP) we applied to analysis of vibration time series of dry friction pair. Three different stages of surface frictional destruction during experiment were detected using spectral and correlation properties of vibration signals.
Lake Water Volume Calculation Using Bathymetric Survey, RS and GIS
Authors:   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Ivchenko Dariya , Alokhina Olga ,   Karpenko Physico-Mechanical Institute of NAS of Ukraine, Korus Mykola ,   Karpenko Physico-Mechanical Institute of NAS of Ukraine
Published: November 2023

Estimates of lake volume and other morphometric parameters are needed to understand the role of water bodies in territorial resilience to climate change. Modern GIS methods for calculating lake volume improve on more dated technologies, but most of them do require detailed bathymetric data. In this research we describe a method to estimate lake volume with a set of data that consists of a bathymetric survey measurements, a GIS modeling and layer of Svitiaz Lake shoreline derived from remote sensing data.
Плазмонні явища у біконічних і біпірамідальних металевих наночастинках
Authors: Korotun A.V.
Published: November 2023

В роботi в рамках пiдходу еквiвалентного сфероїда дослiджуються оптичнi характеристики металевих наночастинок бiконiчної та бiпiрамiдальної форм. Проведено розрахунки частотних залежностей дiагональних компонент тензора поляризовностi, перерiзiв поглинання та розсiювання i частот поздовжнього та поперечного поверхневого плазмонного резонансу частинок вказаних форм. Встановлено, що положення поверхневого плазмонного резонансу суттєво залежить вiд аспектного вiдношення, коли плазмоннi коливання вiдбуваються вздовж бiльшого розмiру наночастинки i не залежить вiд аспектного вiдношення для плазмонних коливань вздовж меншого розмiру. Показано, що положення й амплiтуда максимумiв перерiзу поглинання залежать не лише вiд аспектного вiдношення, а i вiд форми поперечного перерiзу частинки (коло або п’ятикутник). В свою чергу, змiна матерiалу наночастинок має наслiдком лише зсув спектральних кривих зi збереженням вiдносних положень i величин максимумiв перерiзiв поглинання.
E-prescription - impediment or facilitation?
Authors: Kwietniewska Roksana , Zborowska Iwona , Dąbek Anna
Published: November 2023

Aim. The aim of the study was to obtain information about the advantages and disadvantages of using an e-prescription and whether age is a determinant in the case of e-prescription use.

 

Methods. This study is used the method of diagnostic survey. An original questionnaire was used to collect the diagnostic material.  The study involved 94 respondents aged 18–92, who by filling in the proprietary electronic questionnaire indicated the advantages and disadvantages of e-prescription.

Results. The largest age group that participated in the study was the one which was aged  18–29 as it accounted for 26.6% of all participants, while seniors were in the minority, accounting for 7.9%. As for the place of residence, the dominant group were the inhabitants of rural  areas (54%). When analysing the education attained by the participants, most respondents had secondary education 40.4% (n=38) and higher education 30.9% (n=29). While focusing only on the group  of seniors, vocational education came first. 93.5% of respondents had no problem with the redemption of e-prescriptions. Satisfaction with the quality of services was indicated by 93.5% of the respondents, and only 1.1% were dissatisfied. People over 60 encountered the most problems with e-prescriptions; these resulted mainly from the inability to reach the clinic and losing the access code.

Keywords: e-prescription, senior, digitization
Possibilities concerning the telerehabilitation of children with developmental age disorders and evaluation of such a therapy by their parents
Authors: Trafalska Agata , Pawlik Korneliusz
Published: November 2023

Aim. The aim of this study was to analyse the possibility of conducting telerehabilitation among children with developmental age disorders (by their parents), as well as to evaluate its course and effectiveness.

Methods. The work analyses the possibilities of telerehabilitation among children in Poland and compares them with reports from other countries. Next, to parents of children who have undergone such a therapy were asked about their opinion. A survey was conducted in a group of parents of patients rehabilitated during the pandemic via teleconsultations. The survey included questions about the advantages and disadvantages of telerehabilitation, the evaluation of its effectiveness and further prospects for such a therapy.

Results and conclusion. 56.7% of the respondents were satisfied and 16.7% of parents were dissatisfied with this form of therapy. 60% of the examined people reported that constant contact with a physiotherapist motivated them to carry out systematic exercises with a child at home. Only 6.7% of patients did not see any progress in rehabilitation. 26.7% of people observed a very big improvement and 20% - a big improvement. In the longer time, 3.3% of the respondents declared a desire for exclusive telerehabilitation, 13.3% - would never like to take advantage of this form of therapy again. 36.7% of patients would expect hybrid therapy: some classes in the institution and some classes within the framework of teleconsultations. Telerehabilitation can be a valuable supplement to the traditional therapy for children with developmental age disorders. To ensure effectiveness, telerehabilitation requires very good cooperation between the therapist and the patient’s parents and with the child himself.

Cognitive value. The physiotherapist should know the expectations of the patient's parents and react to emerging problems. The analysis of parents' opinions presented in this study will help to create the best forms of telerehabilitation.
A termék-influenszer összeillés és a szponzorált tartalom jelölésének együttes hatása a környezettudatos szponzorált posztok értékelésére
Authors: Buvár Ágnes , Varga Renáta
Published: November 2023

Háttér és célkitűzések: A környezetbarát termékekkel kapcsolatos marketingkommunikáció egyre nagyobb teret nyer a közösségi médiában. Előzetes kutatások igazolták, hogy míg az influenszer és az ajánlott termék összeillése pozitívan befolyásolja a meggyőzés sikerességét, a szponzorált tartalom feltüntetése negatív hatással van a meggyőzésre. Jelen tanulmány az influenszer-termék összeillés és a szponzorált tartalom feltüntetésének együttes hatását vizsgálja egy influenszer által posztolt környezettudatos tisztítószer ajánlásának eredményességére. Feltételeztük, hogy magas termék-influenszer összeillés esetén a szponzorált tartalom jelölése kevésbé negatívan fog hatni a termékajánlás eredményességére. Módszer: Hipotéziseink megválaszolásához egy 2 (kontroll versus környezettudatos profil) × 2 (kontroll versus figyelmeztetés szponzorált tartalomra) kontrollcsoportos online kísérletet hajtottunk végre. Résztvevőinket egy egyetemi kurzus keretében toboroztuk (N = 430, M = 22,1 év, SD = 4,22 év). Az ingeranyagokat magunk állítottuk elő fiktív influenszer profilok és posztok létrehozásával. A hipotézisek tesztelését két szempontos varianciaanalízisekkel végeztük. Eredmények: Sem a reklám-, sem a márkaattitűdöt nem befolyásolta az összeillés és a szponzorált tartalom feltüntetésének együttes hatása, az első két hipotézisünket nem sikerült bizonyítanunk. A magas termék-influenszer összeillés azonban pozitívan befolyásolta a reklám- és márkaattitűdöket. A vásárlási szándékot illetően, a feltételezettekkel ellentétben a szponzorált tartalom feltüntetése a magas termék-influenszer összeillés poszt esetében volt negatívabb hatással a vásárlási szándékra. Következtetések: A magas termék-influenszer összeillés pozitív hatása a reklám- és márkaattitűdre összhangban van a szakirodalomban ismertetett eredményekkel. A vásárlási szándékkal kapcsolatos eredményeinket magyarázhatják a szponzorált poszt témája, a módszertani különbségek, illetve a poszt értékelése mögötti eltérő pszichológiai mechanizmusok. A jövőbeni vizsgálatoknál javasolt figyelembe venni az influenszer mögöttes szándékával kapcsolatos fogyasztói feltételezéseket.
Csecsemőmegfigyelések környezetpszichológiai tapasztalatai egy kvalitatív kutatás tükrében
Authors: Tóth-Varga Violetta , Dúll Andrea
Published: November 2023

Háttér és célok: Kutatásunkban tanulmányi célzattal készült pszichoanalitikus szemléletű csecsemőmegfigyelési jegyzőkönyveket vizsgáltunk. A megfigyelések eredeti céljukat tekintve az anya-csecsemő interakciókra, a baba fejlődésére, illetve a megfigyelő által átélt élményekre fókuszáltak, mi azonban arra kerestük a választ, hogy ezek az információk milyen konkrét tapasztalati élményből táplálkoznak, s ezeknek milyen szociofizikai aspektusai érhetők tetten. Arra voltunk tehát kíváncsiak, hogy a megfigyelés szempontjai között – annak ellenére, hogy ez nem volt cél – megjelennek-e, és ha igen, miként artikulálódnak szociofizikai tényezők. Módszer: Az Ego Klinika módszerspecifikus gyermekterapeuta képzésében részt vevő hallgatók mint megfigyelők szolgáltattak adatokat a kutatás számára. Tíz darab, 2006 és 2016 között készült, egy-másfél éven át heti rendszerességgel zajló csecsemőmegfigyelés feljegyzéseit tartalmazó jegyzőkönyv elemzését végeztük el. A kvalitatív kutatás szövegelemzéssel, a Grounded Theory módszerével készült. Eredmények: Szövegelemzésünk szerint három fontos kulcskategória rajzolódott ki, melyek a megfigyelések szociofizikai vetületét jelenítették meg, ezek a „mozgás a térben”, a „helyélmény” és az „elfedések” kategórianevet viselik. Emellett nem közvetlenül szociofizikai vetületű kategóriák is kirajzolódtak („a múlt lenyomatai”, „érzelmek”, „alkalmazkodások” néven), melyek fontos kontextuális háttérként értelmezhetők. Következtetések: Kutatásunk arra világított rá, hogy a környezetpszichológiai szociofizikai kontextus, mint nem tudatosuló, de mégis erőteljesen jelen lévő tényező húzódik meg a megfigyelendő jelenségek hátterében, annak ellenére, hogy a megfigyelői feladat nem tartalmazta fizikai aspektusok megfigyelését. A jegyzőkönyvekben jól körvonalazhatóan megjelenő szociofizikai tényezők feltehetően a megfigyelő gondolatait, értelmezési módjait is befolyásolták, és úgy tűnik, fontos információforrásként, sok esetben értelmezési keretük sarokpontjaiként szolgáltak. Ez a jellegzetesség egyben felveti annak lehetőségét, hogy a szociofizikai környezeti viszonyok tanulmányozása bevonhatóvá váljék a megfigyelési jegyzőkönyvek elemzésébe.
Green RP-HPLC methods for assay and related substances in rivaroxaban tablets
Authors: Nakov Natalija , Anastasova Liljana , Gjorgievska Marija Zafirova , Acevska Jelena , Brezovska Katerina , Petkovska Rumenka , Dimitrovska Aneta
Published: November 2023

In this study, two different ethanol-based RP-HPLC methods for assay and quantification of rivaroxaban related substances in tablets were developed, based on green analytical chemistry (GAC) principles, using the design of experiments approach. The chromatographic separation was performed on X-Bridge C18 column (250 × 4.6 mm, 5 µm particle size), using isocratic elution with ethanol : water (35:65, % v/v) for the assay and gradient elution with ethanol/water mobile phase, for related substances, with a flow rate of 1.0 mL min−1. The gradient method was optimized for the separation of three specified impurities (impurity G, impurity H, and impurity 14) and the selectivity was further confirmed using forced degradation studies. Both methods were validated in accordance with ICH guidelines. The robustness of the methods was confirmed with the Central Composite Face Design of Experiments. Analytical Eco-scale approach and AGREE metrics confirmed that both methods are in accordance with the GAC principles. The proposed ethanol-based RP-HPLC methods were applied for assay and determination of related substances in rivaroxaban 10 mg tablets obtained from three different manufacturers available on the Macedonian market.
Nutritional quality parameters of tomato genotypes in a hedgerow system
Authors: Mustafa Mohammed , Szalai Zita Magdolna , Csambalik László
Published: November 2023

Tomato (Solanum lycopersicum L.) is grown worldwide in open fields and greenhouses in a range of climate conditions. Hedgerows are a type of agroforestry systems that monitors ecological and influence microclimate conditions. An experiment was conducted at the Soroksár experimental field of the Hungarian University of Agriculture and Life Sciences in 2022 to investigate the influence of hedgerow technology on tomato plant leaves, N, P, K, chlorophyll, and carotene mineral levels from different distances, Exposed sides W1-3m, W2-9m and W3-15m and Protected sides NP1-3m, NP2-9m and NP3-15m, meters from the hedgerow trees.

The results investigate potassium and carotene, as well as chlorophyll b levels, are less differed among the protected and exposed side of the hedgerows trees, while the others were impacted to a certain extent; nitrogen and chlorophyll content was generally higher on the exposed side regardless of variety, while in the case of phosphorus adverse effects were observed. Distance from the hedge showed similar patterns for all traits. The results will help to better understand the impact of alternate technologies on tomato production in open-field conditions.