bluuebunny/crossref_metadata_2025 huggingface dataset:
Development of Blended Learning Radio and Television System Engineering on Audio-Video Engineering Expertise Competence
Authors: Catur Prasetyo Raden Akhmad Mukhlis , Haryono Haryono , Wibawanto Hari
Published: July 2023

The explanation of the National Education System Law Number 20 concerning the National Education System (2003) states that vocational education is secondary education that prepares students to work in specific fields. This study aims to compile test the feasibility, validity, and effectiveness of the Blended Learning model in Radio and Television System Implementation (PSRT) in the competence of Audio-Video Engineering expertise at Public Vocational High School 3 Semarang. Research and development use the analysis, design, development, implementation, evaluation (ADDIE) model. This research aims to describe in detail the stages of planning, implementation, and effectiveness of the blended learning model. It shows that learning using the flipped classroom blended learning model can improve student outcomes. In general, learning activities have been carried out correctly and optimally. This can be seen from the results of the average implementation of meeting 1 = 83 (good category), meeting 2 = 85 (good category), meeting 3 = 88 (very good category), and meeting 4 = 90 (very good category). The average is 86.5, with a good category if taken based on the results above. An average of 86.5 shows that the implementation of learning with the blended learning flipped classroom model in the PSRT class XI subject of Audio Video Engineering Competence at Public Vocational High School 3 Semarang has been successfully implemented. The assessment of critical aspects of the blended learning model by learning model experts shows that learning planning with the blended learning model is feasible and can be used to implement PSRT learning activities in class XI of audio-video engineering competence because it has met the criteria for implementing blended learning by covering 5 (five) keys to blended learning, namely live events, self-paced learning, collaboration, assessment, and performance support materials. Learning with the blended learning model is declared to be effective and well implemented, as can be seen from the results of increasing student learning outcomes. Learning with the blended learning model has proven to be effective in terms of learning outcomes of the PSRT that uses the blended learning model >75. There is a significant difference in learning outcomes between the group using the blended learning model and the group not using the blended learning model. The process of increasing student activity and motivation becomes better.
Effect of pressure induced graft copolymerization on the physico-chemical properties of bio-fibers
Authors: Singha Amar Singh , Rana Raj K.
Published: July 2023

The present study deals with the surface modification of Agave americana L. fiber through graft copolymerization of methyl methacrylate under pressure in the presence of ceric ammonium nitrate as redox initiator. The various reaction parameters such as reaction time, pressure, concentration of nitric acid, initiator, and monomer, etc. were optimized to have the maximum graft yield of 13.6%. The grafted fibers were then subjected to the evaluation of different physico-chemical properties such as swelling behavior, solubility, moisture absorption under different humidity levels, resistance to acids and bases, etc. It was observed that swelling behavior, solubility behavior, and moisture absorbance decreased with increase in grafting, whereas resistance to acids and bases increased with grafting. The fibers grafted under the optimized conditions were then characterized by Fourier transform infra-red spectroscopy, scanning electron microscopy, thermogravimetric analysis, and x-ray diffraction techniques.
Influence of Job Stress and Resilience on Burnout of Clinical Nurses Working in Small and Medium-Sized Hospital: Focusing on Comparing National Safety Hospital and COVID-19 Dedicated Hospital
Authors: Jang Su-Young , Ko Young
Published: July 2023

This study was conducted to compare the job stress, resilience, and burnout levels of small and medium-sized hospital nurses working at National safety hospitals and coronavirus disease-19 (COVID-19) dedicated hospitals, and to identify influencing factors on burnout.This study was a cross-sectional study and research participants were nurses at small and medium-sized hospitals working at National safety hospitals and COVID-19 dedicated hospitals. Data from 292 nurses collected using a structured questionnaires from April 1 to 30, 2020 were used. Data was analyzed using multiple regression analyses.As a result of this study, there was a significant difference in stress on job demand and job resources of nurses working at National safety hospital type B and COVID-19 dedicated Hospital. There was no difference in job stress and resilience of nurses among types of hospitals. As a result of multiple regression, stress to job demands and resilience were factors influencing the level of exhaustion of nurses. Stress to job demands and job resources and resilience were factors influencing the level of disengagement of nurses.Considering the results of this study, it is suggested to introduce strategies to reduce nurses’ job stress and burnout caused by COVID-19.
Деформаційні ефекти у кристалах германію діркової провідності
Authors: Гайдар Г.П.
Published: July 2023

На монокристалах p-Ge з питомим опором ρ300K ≈ 16 Ом·см одержано при 300 і 77 K польові залежності коефіцієнта Холла за умов  ||  || [100] і  ||  || [111] (магнітне поле  спрямоване вздовж напрямку [10],  — струм крізь зразок) за різних значень тиску . На зразках обох кристалографічних орієнтацій при 77 K (за відсутності та за наявності тиску) виявлено тонку структуру польових залежностей коефіцієнта Холла, пов’язану з анізотропією зони важких дірок. Виявлено істотне згладжування тонкої структури зі збільшенням тиску. Показано якісно різну поведінку коефіцієнта Холла з тиском у слабких і більш сильних магнітних полях. Одержано залежності питомого опору та поздовжнього магнітоопору з тиском, виміряні за температури рідкого азоту на тих самих зразках двох кристалографічних орієнтацій. Виявлено чітко виражену анізотропію тензоопору і тензо-холл-ефекту як за відсутності, так і за наявності тиску. Встановлено, що основна перебудова деформованої сфери важких дірок вихідного кристала в еліпсоїди відбувається (у зразках обох орієнтацій) в інтервалі X ≤ 0,6÷0,7 ГПа, а в разі подальшого збільшення тиску параметри еліпсоїдів, що утворилися, змінюються відносно слабко. Виявлено у зразках обох кристалографічних орієнтацій відмінність від нуля поздовжнього магнітоопору , а також різко виражену його анізотропію, яка не зникає до найбільших тисків, досягнутих в експерименті. Показано тенденцію до зростання поздовжнього магнітоопору зі збільшенням тиску за умов  ||  || [100] і 77 K.
1-Функціонально заміщені похідні піроло[1,2-a]хіназолін-5(1Н)-онів
Authors: Васькевич Р.І. , Савінчук Н.О. , Васькевич А.І. , Вовк М.В.
Published: July 2023

Розроблено препаративно зручний метод синтезу 1-(йодометил)-2,3,3а,4-тетрагідропіроло[1,2-a]хіна­зо­лін-5(1Н)-онів, який базується на селективному відновленні 1-йодометилпіролохіназолінію йодидів борогідридом натрію. Показано можливість спрямованої модифікації йодометильного фрагмента 1-(йо­до­метил)-2,3-дигідропіроло[1,2-a]хіназолін-5(1Н)-онів S- та N-вмісними нуклеофільними реагентами, у результаті чого одержано відповідні похідні з тіоацетатною та азидною функціональними групами. Гід­ру­ванням останніх на 10 % Pd/C отримано перспективні синтетичні будівельні блоки — 1-(амінометил)піроло[1,2-a]хіназолін-5(1Н)-они. Зафіксовано особливу поведінку 1-(йодометил)-2,3-дигідропіроло[1,2-a]хіназолін-5(1Н)-онів у реакції з аміаком, що супроводжується розривом зв’язку С—N піролідинового циклу і утворенням 2-(3-оксобутил)хіназолін-4(3Н)-онів, для яких виявлено ланцюгово-кільцеву таутомерію.
Environmental problems of the Khadzhibey estuary and prospects for its fishery exploitation
Authors:   Odesa State Ecological University, Odesa, Shekk P.
Published: July 2023

Purpose.To study the peculiarities of the formation of the hydrological-hydrochemical regime and the ichthyocomplex of the Khadzhibey Estuary, to analyze the state of the ecosystem components of the water body in connection with the prospect of its further fishery exploitation. Methodology.Generalized results of studies conducted during 2000–2021 were used in the course of work. An analysis of the available data on the formation of the current hydrological and hydrochemical regime of the estuary, the peculiarities of the formation of the ichthyocenosis, the current composition of ichthyofauna, and the results of fishery activities was carried out. Hydrological, hydrochemical, hydrobiological and ichthyological studies were carried out according to standard methods [1, 2]. The materials obtained during field studies were processed at the laboratory of the Department of Aquatic Bioresources and Aquaculture of ODEKU. Findings. A retrospective analysis of the peculiarities of the formation of the aquatic ecosystem of the Khadzhibey estuary as a water body for the storage of purified household effluents was carried out. The causes and results of anthropogenic transformation of the water body, the stages and peculiarities of the formation of the ichthyological complex, the organization and current state of culture-based fisheries were revealed. Ways to improve the hydrological and hydrochemical state of the water body are being examined. Artificial reefs are one of the most important directions that should be developed in the water area of the Khadzhibey Estuary. The formation of the biota of these engineering structures will allow not only increasing the abundance and production of some fish species, e.g., gobies (Gobiidae), but also significant improving the ecological condition of the water body. Prospective directions for the development of aquaculture through the targeted formation of polyculture with the introduction of flatfishes (Pleuronectidae), turbots (Scophthalmidae), gobies (Gobiidae), sturgeons (Acipenseridae) and salmonids (Salmonidae) are proposed. It is shown that one of the promising forms of fish farming that can be successfully developed in the Khadzhibey Estuary is cage aquaculture aimed at growing valuable brackish and freshwater fish species. Originality. For the first time, an analysis of the peculiarities of the formation of the ecosystem and the ichthyological complex of the Khadzhibey Estuary as a water body is presented, the prospects for its further functioning are examined, and the promising directions of aquaculture development are determined. Practical value. The obtained results can be used to develop measures to stabilize and improve the state of the Khadzhibey E stuary ecosystem and introduce new, promising directions for the development of aquaculture. Key words: Khadzhibey estuary, storage water body, hydrological and hydrochemical regime, ichthyofauna, fish farming, aquaculture prospects.
Prospects of commercial exploitation of Prussian carp in the Kyiv reservoir
Authors:   National University of Water and Environmental Engineering, Rivne, Sondak V. , Kurgansky S. ,   Institute of Fisheries NAAS, Kyiv, Zakharchenko I. ,   Institute of Fisheries NAAS, Kyiv, Drogan G. ,   Institute of Fisheries NAAS, Kyiv, Koba S. ,   Institute of Fisheries NAAS, Kyiv
Published: July 2023

Purpose. Establishing modern parameters of Prussian carp population as a promising object for increasing commercial fish productivity of the Kyiv Reservoir. Methodology. The work is based on field materials obtained during the period 2019-2021 on the Kyiv Reservoir. Data collection and processing was carried out in accordance with generally accepted methods. Ichthyological material was collected from catches of the survey gill nets with mesh sizes of 30-120 mm and commercial gill nets with mesh sizes of 38-50 and 75-100 mm. A total of 1215 net-days of surevy and commercial nets were analyzed during the study period, of which 2372 specimens of Prussian carp were analyzed. Statistical data processing was carried out using MS Excel. Findings. The main parameters that characterize the commercial stock of Prussian carp of the Kyiv Reservoir in the context of optimizing the commercial fishing pressure on this species have been determined. It was found that the state of recruitment of the commercial stock of this species was satisfactory and the dynamics of its size-age structure indicated a low commercial fishing pressure, especially on the right wing of the variation series — the average annual fishing mortality in 2019-21 was φM=0.13. The majority of the commercial stock is steadily composed of age-6 to age-10 fish, the share of older age groups was consistently high, which led to fluctuations in the weighted average age in catches within 6.7...8.5 years. It was shown that the intensification of Prussian carp harvest (due to specialized fishing with nets with mesh size of 50 mm) would allow increasing catches in the Kyiv Reservoir by 52...65%. Originality. For the first time, a detailed description of Prussian carp of the Kyiv Reservoir is presented as an adventive species that quickly assimilates free econiches and requires scientifically based measures to localize its abundance. Practical value. Based on the processing of information on the state of stocks of Prussian carp as part of the source of commercial fishery of the Kyiv Reservoir, the procedure of intensification of its commercial exploitation was determined, taking into account both fishery and environmental aspects. Proposals regarding the quantitative characteristics of specialized fishery with nets with mesh sizes of 50-60 mm are included in the new edition of the Rules for commercial fishery in inland fisheries water bodies (parts thereof). Key words: Kyiv Reservoir, Prussian carp, size-age structure of the catch, commercial stock, specialized fishing.
Analysis of productive and biological parameters of age-1+ carps obtained from reciprocal crosses of Antonino-zozulenets and Halych framed breeds
Authors:   Institute of Fisheries NAAS, Kyiv, Krasnopolska O. , Kurinenko G. ,   Institute of Fisheries NAAS, Kyiv
Published: July 2023

Purpose. To provide a comprehensive characterization of productive and biological parameters of crossbred age-1 and 1+ carps obtained from the crossbreeding of the Halych and Antonino-Zozulenets intrabreed type of Ukrainian carp breeds in the 2nd year of life and to conduct a comparative analysis with pure parental lines. Methodology. The material for the study were age-1+ individuals of the Antonino-Zozulenets and Halych carps. The main productive and biological parameters were studied during spring and autumn harvests as well as test fishing during the growing season according to generally accepted methods in fish farming. The external evaluation of the experimental groups was carried out according to the following parameters: body weight and length, body height, body girth. Measurements were made with a centimeter tape with an accuracy of 1 mm. Individual weighing was carried out on electronic commercial scales with an accuracy of 1 g. Based on the results of the measurements, the main exterior parameters were analyzed and determined: body length to girth ratio, body length to height ratio, body length to head length ratio. Findings. The study showed that among the reciprocal crossings of Halych and Antonino-Zozulenets carps, age-1+ carps obtained from the crossing of an Antonino-Zozulenets framed female and a Halych framed male were characterized by a higher growth rate. The superiority over the pure line of the Antonina-Zozulenets carp was 21.4% and the Halych carp — 14.1%. At the same time, the daily growth rates during the growing season were in the range of 1.31 - 4.16 g. The survival rate in crossbred age-1+ carps from crossing ♀AZFC x ♂HFC was 90%, ♀ HFC x ♂ AZFC - 94%, pure lines of the Halych carp 85%, Antonino-Zozulenets — 92%. Based on the average values of individual body weight and survival rate, the fish productivity was in the range of 481.8 - 681.3 kg/ha. Originality. For the first time in the conditions of Ukraine, a comparative analysis of productive and biological parameters of reciprocal offspring of the Halych and Antonino-Zozulenet carps in the second year of life was carried out in comparison with pure lines. Practical value. The results of the analysis of productive and biological parameters will allow providing recommendations on the use of these hybrids as new promising lines for commercial cultivation in the Polissia zone of Ukraine. Key words: carp, selective breeding, inbred type, generation, exterior, weight, condition factor.
Aspects of neuro-humoral regulation of functional activity in the organism of fish under the influence of abiotic and biotic factors (a review)
Authors:   Kherson State Agrarian-Economic University, Kherson, Honcharova O.
Published: July 2023

Purpose. To make a comprehensive analysis and review the main aspects of the formation of the resistance of hydrobiont bodies under the influence of various factors. To show the mechanism of action of the main physiological and biochemical processes in the context of understanding the general functionality of hydrobiont bodies. To summarize the basic concepts and opinion regarding the activity of metabolic processes, regulation of enzymatic activity in hydrobiont bodies against the background of the conditions of influence of abiotic and biotic factors. Findings. An overview of modern scientific publications is presented, showing the idea of the hydrobiont body as a single functional system. Supplemented by the author’s own judgments regarding the role of physiological and biochemical processes in the formation of adaptive and compensatory mechanisms of fish, the main mechanisms of adjustment of vital processes in view of the influence of stress factors. In general, open literature data on the studies on the adaptive capacity of hydrobiont bodies against the background of the introduction of adaptogens, developmental stimulants, and immunomodulators. The general aspects of ways to solve the problem in the context of increasing the resistance of hydrobiont bodies under various exposure conditions, including growing conditions, are considered. Experimental studies were analyzed, in particular, the effectiveness of the influence of the feed factor, technological elements of cultivation on the general functional status of hydrobiont bodies. The main physiological and biochemical mechanisms of influence on metabolic processes, enzymatic activity and adaptive capabilities of fish under the influence of biologically active substances and the conditions of the aquatic environment were studied. Aspects of neurohumoral regulation in fiosh body are highlighted, which reflect the general mechanism of action and mechanisms for adjusting the vital functions of the functional system of hydrobionts. Practical value. The review carried out on the presented topic can be useful for scientists, students of higher education, practitioners, private entrepreneurs who are related to the fishery industry, research works in aquaculture. Key words: hydrobionts, organism, physiological and biochemical processes, regulation mechanism, abiotic, biotic factors.
Biological peculiarities of pikeperch (Sander lucioperca Linnaeus, 1758) as a promising object of freshwater aquaculture of Ukraine (a review)
Authors:   Institute of Fisheries of the NAAS, Kyiv, Polishchuk O. , Simon M. ,   Institute of Fisheries of the NAAS, Kyiv
Published: July 2023

Purpose. Nowadays, pikepersh (Sander lucioperca Linnaeus, 1758) is currently one of the most popular fish among both consumers and producers of quaculture products, which attracts the attention of scientists who are constantly improving technologies for working with it. That’s why, our goul was to analyse a selection of professional literary sources from different years and, based on their analysis, to provide a brief review of the main commercially valuable features of a species of the native ichthyofauna of Ukraine — pikepersh (Sander lucioperca Linnaeus, 1758). To review the modern problems about the existence of populations of this species in various water bodies and ways of solving them as well as the prospects of its cultivation in the conditions of modern Ukraine. Findings. A review of domestic and foreign scientific works devoted to pikeperch over the past sixty years was carried out. Materials related to the main features of the existence of its populations in water bodies of Ukraine, including the Azov and Black seas, were analyzed. The specifics of feeding of this species in the conditions of various Ukrainian water bodies were examined. The fundamental problems preventing the stable reproduction of pikepersh populations in natural conditions were described. The fundamental advantages of its use for biological control of trash fish were highlighted. The general features of the ichthyopathological status inherent to this species were highlighted. Prospective directions for further work with it in Ukraine were clarified. Practical Value. The presented analytical review can be useful for scientists, educators, fish farmers, environmental activists and other persons interested in the ichthyofauna of Ukraine. Keywords: pikepersh (Sander lucioperca Linnaeus, 1758), reservoirs, estuaries, aquaculture, ponds, Black Sea, Sea of Azov.
A Quality Improvement Project to Improve Hospital-to-Home Transitions Using Discharge Televisits
Authors: Bhatia Kulsajan , Nawaz Khawar , Waldman Lee M. , Khandakar Saema , Sitt Hal , Desai Ninad , Bochner Risa
Published: July 2023

BACKGROUND

Resident-led discharge “televisits” can improve the safety of hospital-to-home transitions by increasing completed follow-up and providing patients access to their inpatient providers to troubleshoot issues.

METHODS

This single-center quality improvement study was set in a pediatric unit within an academically affiliated public safety-net hospital. By August 2021, the aim was to use resident-led phone call televisits within 72 hours of discharge to increase completed follow-up from 67% to 85% among patients discharged from the general pediatric unit and compare this to patients scheduled for in person visits. Patients were preferentially scheduled for televisits based on investigator-defined criteria to maximize benefit (eg, prescribed new medications). The process measure was the proportion of televisit slots filled. The balancing measures were 7-day emergency department visits and readmissions. Topics addressed during televisits were categorized to qualitatively assess potential benefits.

RESULTS

Three hundred and fifteen (44.5%) patients had televisits, 234 (33.1%) in person visits, and 159 (22.5%) unconfirmed follow-up. The available televisit appointments scheduled were 315 of 434 (72.5%). Completed follow-up was 88.3% for televisits and 63.3% for in person visits, compared with 67% during the baseline period. Completed follow-up was 4.4 (95% confidence interval 2.9 to 6.8) times more likely for televisits compared with in person visits after controlling for confounding variables. Common topics addressed during televisits were test results, medication issues, and appointment issues. Emergency department revisits and readmissions were similar between groups.

CONCLUSIONS

Resident-led discharge televisits are an innovative way to increase completeness of discharge follow-up.
Centralidades y ferias comerciales en el noroeste de la Región Metropolitana de Buenos Aires
Authors: Vecslir Lorena , Blanco Jorge , Sciutto Florencia
Published: July 2023

El análisis de las centralidades representa una vía de entrada a las dinámicas espaciotemporales metropolitanas, con múltiples variantes en cuanto a tipologías, articulaciones urbanas, modos de acceso, perfiles comerciales y usos del territorio. En el caso de la Región Metropolitana de Buenos Aires, a partir de la hipótesis de que existen redes tácitas de intercambio y comercio que se yuxtaponen territorial y temporalmente, configurando centralidades con diversos órdenes de inserción y comportamiento metropolitano, el presente artículo indaga en las relaciones que se establecen entre el comercio tradicional de calle y las modalidades temporales de consumo, como ferias y mercados. En base al uso de plataformas abiertas de datos y mapeo de información, técnicas de investigación documental, observación directa y entrevistas a informantes clave, se analiza la estructura de las centralidades en dos municipios de la primera corona del noroeste metropolitano (San Miguel y San Martín), haciendo hincapié en las modalidades temporales del uso comercial, y se caracterizan las tipologías de ferias a partir de cuatro casos representativos. A manera de conclusión, se reflexiona acerca de las relaciones de competencia y complementariedad existentes entre los distintos formatos comerciales.
La incorporación del diseño participativo en la política habitacional argentina
Authors: Palero Juan Santiago
Published: July 2023

En octubre de 2022 se presentó en el Congreso de la Nación Argentina el proyecto de ley de Producción Social Autogestionaria del Hábitat. Este proyecto incorpora en la política habitacional del país las estrategias que despliegan las organizaciones sociales para alcanzar, de manera colectiva, el derecho a la vivienda digna. Como una de sus novedades, este proyecto busca implementar el diseño participativo, aunque en la letra de la ley no se aclaran sus connotaciones e implicancias. El presente trabajo se pregunta acerca del significado de esta manera de abordar el proyecto, sus aportes, limitaciones y posibilidades de aplicación en el nuevo marco que abre la ley. Para responder a estos interrogantes se combinan fuentes bibliográficas y de archivo junto con técnicas de observación participante en experiencias anteriores y en curso actualmente. Si bien en el origen del proyecto el diseño participativo estuvo ligado a una discusión filosófica sobre la belleza de la vivienda social, en las conclusiones del trabajo se destaca su valor práctico como instancia de negociación entre actores. Esta ventaja pragmática alcanza un carácter político cuando el proyecto permite sumar voluntades en la construcción de un escenario deseado, aunque el éxito del proceso requiere una adecuada planificación metodológica. La ley constituye un avance en ese sentido, al prever tanto el abordaje multiactoral en equipos interdisciplinarios, como instancias de formación metodológica en una Escuela Nacional de Autogestión.
Da'wah of Islam in the Era of Generation Z: Study of Takhrij and Syarah Hadith
Authors: Salsabila Hasna Rafidah , Qodri Azizi
Published: July 2023

This study aims to discuss hadiths about Islamic da'wah in the Z generation era. This research uses a qualitative approach by applying a descriptive-analytical method. The formal object of this research is the science of hadith, while the material object is the hadith about Islamic da'wah in the Z generation era in the history of Bukhari No. 1365. The results and discussion of this study indicate that the status of this hadith is of authentic quality which is maqbul ma'mul bih as evidence. This study concludes that the hadith narrated by Bukhari No. 1365 is relevant to be used as motivation in spreading Islamic da'wah with various delivery methods, especially in generation Z.
Die polnische Anwaltschaft in der Zwischenkriegszeit (1918–1939)
Authors:   Uniwersytet im. Adama Mickiewicza w Poznaniu, Materniak-Pawłowska Małgorzata
Published: July 2023

The Bar, as a professional group dealing with defence and representation, has been developing on Polish lands at least since the beginning of the XVI century. However, only in the second half of the XIX century, so already after Poland was partitioned, the Bar association acquired its first self-government organization. The particularly intensive period of development of the Bar took place during the existence of the Second Polish Republic. The issue of legal basis of its functioning was regulated at the time. The old, unsystematic and post partition legislation was replaced with uniform and more modern law created by the Polish legislator. The rules which constitute the basis of the Bar association system were specified. The rule of equality of the legal profession as well as the rule of freedom and independence of the Bar association were the ones which gained the most importance. Furthermore, the issues connected with performing the legal profession were regulated and specified. Among the aforementioned issues were the following: the essential requirements necessary to perform the profession, the forms in which it is performed, the range of legal activities and the possibility of combining the legal profession with other activities, the rights and duties of a lawyer as well as disciplinary responsibility. Consequently, the interwar period was a short, albeit extremely important stage of the legal corporation’s development.
Demonstracyjne okazywanie lekceważenia w miejscu publicznym Narodowi Polskiemu, Rzeczypospolitej Polskiej lub jej konstytucyjnym organom a wolność wyrażania poglądów
Authors:   Uniwersytet im. Adma Mickiewicza w Poznaniu, Gołda-Sobczak Maria
Published: July 2023

Public manifestation of disregard for the Polish nation, the Republic of Poland and its constitutional authorities is a misdemeanor. Such disregard is not within the scope of the freedom of public debate. Such disregard is not within the concept of insult.
EXPERIMENTAL AND NUMERICAL ANALYSIS FOR THERMAL PROBLEM OF FRICTIONAL BRAKE SYSTEM
Authors: Mohammed Aliyaa Q. , Hussain Ihsan Y. , Ali Anmar Hamid , Abdullah Oday Ibraheem
Published: July 2023

The present work aims to validate the experimental results of a new test rig built from scratch to evaluate the thermal behavior of the brake system with the numerical results of the transient thermal problem. The work was divided into two parts; in the first part, a three-dimensional finite-element solution of the transient thermal problem using a new developed 3D model of the brake system for the selected vehicle is SAIPA 131, while in the second part, the experimental test rig was built to achieve the necessary tests to find the temperature distribution during the braking process of the brake system. We obtained high agreement between the results of the new test rig with the numerical results based on the developed model of the brake system. It was found in some cases the local zones with extreme heat generated in contacting surfaces due to the non-uniformity of the contact pressure during the braking process, where this phenomenon can be led to an increase in the magnitudes of thermal stresses. It was found that the most significant factor on the level of generated temperatures (heat generation) is the initial vehicle's velocity. Furthermore, it was found that the maximum difference between the experimental and numerical results was not exceeding 6%.
EXPERIMENTAL INVESTIGATION OF ENERGY PERFORMANCE AND EXERGY DESTRUCTION OF SIMPLE AND ROUGH-SUPERHYDROPHOBIC VAPOR CHAMBERS FOR PCB TEMPERATURE CONTROL
Authors: Kalantar Vali , Nikmehr Masood
Published: July 2023

In this research, two vapor chambers with the same dimensions were manufactured to control the temperature of the high-power printed circuit board (PCB). In one case, the evaporator and condenser were rough and superhydrophobic,
respectively. Another vapor chamber was nonrough and nonsuperhydrophobic (simple). In this study, as new
experimental work, the exergy destruction analysis was performed in simple and rough-superhydrophobic vapor
chambers and the effect of different parameters on exergy destruction in both vapor chambers was investigated and
compared. Also, the effect of different parameters on the thermal resistance of the vapor chamber, taking into account the roughness and superhydrophobicity of the vapor chamber, was investigated and compared with the thermal resistance
of the simple vapor chamber. The results showed that roughened evaporator and superhydrophobic condenser affected
the amount of influence of other parameters on the thermal resistance and exergy destruction, improved the efficiency
of the vapor chamber in most test cases, and reduced exergy destruction. According to the tested cases, the minimum
thermal resistance and the exergy destruction were obtained as 0.18 °C/W and 13.32 W, respectively. Also, exergy
destruction analysis showed that the amount of exergy destruction depended on the studied parameters in this study.
Phytoplankton Spectral Pigment Indices in the Lakes of the City of Kyiv
Authors: Medved' V. O.
Published: July 2023

The distribution of phytoplankton pigment characteristics (Сchl a+b+c/Cchl a,
Cchl b/Cchl a, Cchl c/Cchl a, Cchl a/Cchl b, Cchl a/Cchl c,  Cpheo a, Cchl a/Cpheo a, Ccar/Cchl a,
and E480/E664 and E430/E664) in 19 lakes located within the territory of Kyiv is discussed in the paper. The studied lakes differ in their origin, hydrological conditions, and also in the level of anthropogenic load. It has been found that changes in relationship between various groups of pigments correlate with changes in phytoplankton structure. The given pigment indices can be used in assessing the structure of algal communities, the physiological state of algae, their quantitative development, and the ecological state of water bodies.
MESOSCALE FRACTURE MODELING OF FOUR-PHASE CONCRETE USING A DEM-ENHANCED STRUCTURE GENERATION METHOD
Authors: Song Hangtian , Guo Ning , Chen Xudong , Xu Wenxiang , Cao Yajun , Meng Qingxiang
Published: July 2023

The two-dimensional mesoscale concrete model consists of aggregates, mortar, interfacial transition zones, and pores, of which each component is not negligible. This paper proposes a new approach to generate four-phase concrete models by assigning the geometries of small pores to fine aggregates, redistributing all aggregates via the DEM packing method with periodic boundary, and removing some aggregates based on specified pore area intervals and porosity. The size and geometry of aggregates and pores are random. Additionally, this work adopts the rigid block discrete element method to simulate the fracture behavior of these concrete models. Each rigid block is transformed from a finite element mesh, and there are no voids between them, which is more realistic than classical ball-based discrete elements. The effects of aggregate volume fraction, porosity, and pore size are also discussed. This work offers a more practical and effective approach to analyzing the impact of these factors on concrete.
Microstructure and physical properties of fly-ash-based geopolymer with the addition of expanded vermiculite
Authors: Huang Yi , Qing Xiangdong , Lin Li , Li Bicai , Xu Lin , Peng Yinglin
Published: July 2023

Fly-ash-based geopolymer pastes with the addition of expanded vermiculite (EV) powder were synthesised and their microstructure, compressive strength, setting time, moisture control, extent of efflorescence and thermal conductivity were studied. It was found that the addition of EV resulted in an increase in the standard-consistency water consumption and setting times. As a consequence, excessive addition of EV resulted in a larger amount of harmful pores, which was detrimental for the compressive strength of the paste. However, geopolymer pastes with an appropriate amount of EV (2–7 wt%) showed a slight increase in compressive strength because of the filler effect. Mg2+ and Fe3+ diffused from the EV interlayers through ion exchange between the EV and the geopolymer, and participated in geopolymerisation. This was reflected by the formation of N-(M)-A-(F)-S-H, as evidenced by scanning electron microscopy with energy dispersive X-ray spectroscopy and Fourier-transform infrared spectroscopy. In addition, Na+/Mg2+ or Na+/Fe3+ ion exchange reduced the mobility of Na+ the ions and therefore decreased the extent of efflorescence. Moreover, EV addition favoured an improvement in moisture content and the thermal conductivity properties of the geopolymer paste.
Efeitos de um programa multiprofissional em trabalhadores de uma instituição hospitalar: uma abordagem qualitativa-quantitativa
Authors: Silva Priscila Tatiana da , Bender Mariluza Sott , Dias Litusa da Silveira , Kappel Rogério Henn , Schmidt Katlen Gabriele , Reuter Cézane Priscila , Reckziegel Miriam Beatrís
Published: July 2023

Introdução: o ambiente hospitalar apresenta riscos advindos de fatores físicos, biológicos, químicos e psicossociais. Assim, ampliar as possibilidades de cuidado à saúde dos funcionários é fundamental para as instituições. Objetivo: avaliar as respostas físicas e de comportamento nutricional e psicológico, apresentadas por trabalhadores da saúde, a uma intervenção multiprofissional. Método: intervenção do tipo estudo-piloto, com 16 funcionários, alocados em grupo experimental(n=9) e grupo controle(n=7), de um hospital de ensino. O programa contemplou exercícios físicos, orientação nutricional e psicológica. Os dados coletados foram analisados por metodologia qualitativa-quantitativa. Resultados: identificou-se a autoestima como elemento importante para mudanças. Verificou-se no grupo intervenção aumento da disposição e autoestima, maiores níveis de flexibilidade (p=0,011), força e resistência abdominal (p=0,015), e reduções no consumo de bolachas/biscoitos salgados (p=0,014) e refrigerantes (p=0,026). Para o grupo controle houve aumento apenas no número de abdominais em um minuto (p=0,046). Conclusão: o programa multiprofissional impactou no alcance de melhores indicadores de saúde para os trabalhadores no grupo experimental, incluindo aumento da autoestima, disposição, níveis de flexibilidade, força e resistência abdominal, bem como menor consumo de refrigerantes e biscoitos salgados.
Intervención multidominio para la prevención y abordaje del deterioro cognitivo: modelo de gimnasio cerebral en Argentina
Authors: Elliot Priscila Victoria
Published: July 2023

El envejecimiento poblacional ha ido de la mano con un aumento exponencial de la prevalencia de las demencias, y, ante la falta de una cura para estas patologías, la posibilidad de accionar a nivel de prevención, sustentada por diversas investigaciones, ha generado un gran interés. En Argentina desarrollamos, de la mano de un equipo interdisciplinar especializado, la propuesta de un “gimnasio cerebral” para la prevención y abordaje de las demencias. El modelo de intervención incluye diversas propuestas de actividad física, cognitiva, social, nutricional, y de regulación emocional, basadas en evidencia científica, con un plan de trabajo personalizado enmarcado en el modelo de atención integral centrada en la persona.
Perceções de empatia de professores nas atividades neuroeducativas em contexto de pandemia covid-19
Authors: Pinto Rosa María , ´Caçador Anastácio Zélia
Published: July 2023

O estudo da empatia com professores é relevante, uma vez que esta dimensão da competência emocional é conhecida como sendo uma estratégia emocional, cognitiva e interativa, que em contexto educacional beneficia o relacionamento interpessoal entre docentes e outros intervenientes. Este trabalho teve como objetivo identificar a empatia manifestada pelos professores das atividades neuroeducativas em contexto COVID-19. Para tal seguiuse uma metodologia qualitativa. Como técnica de recolha de dados realizou-se um focus group com uma amostra de conveniência que incluiu 6 professores de uma escola de 1.º Ciclo do Ensino Básico (1ºCEB), na região norte de Portugal. A discussão foi gravada e transcrita com o consentimento informado dos participantes. De seguida, procedeu-se à análise de conteúdo dos dados recolhidos. As categorias de resposta que emergiram foram: empatia, onde emergiram as subcategorias definição, ser empático, contexto de pandemia, perfil de pessoa empática e o ensino à distância e a empatia; comportamentos, com as duas subcategorias empáticos e não empáticos; estratégias, com comunicação e outras estratégias; e atividades neuroeducativas, revelando as subcategorias estabelecer diálogo e novas modalidades de ensino. Os professores envolvidos nas atividades neuroeducativas em contexto de confinamento por COVID-19 afirmaram que as relações do grupo neste período se tornaram mais solidificadas, fomentando-se o espírito de equipa e de colaboração. Verificaram-se ainda atitudes de empatia na relação com a maioria dos encarregados de educação, professores titulares de turma e alunos, os quais reconheceram, valorizaram o empenho e o esforço destes docentes, demonstrando-se disponíveis, interessados e motivados. Condutas e atitudes de desinteresse e inadequadas no relacionamento, por parte de alguns professores titulares, pais, outros familiares e alunos também foram referidas, revelando perceção de menor empatia. Conclui-se que os professores envolvidos nas atividades neuroeducativas apontaram comportamentos reveladores de empatia nas suas interações com professores titulares, pais e alunos, no período de confinamento. Esclareceram que atitudes de menor empatia, por parte de alguns participantes também surgiram, mas com frequência mais reduzida. Para promover atitudes e desenvolver competências de empatia em ambiente educacional é necessário proporcionar estratégias de comunicação e interação salutar.
Relación entre el uso de videojuegos durante la pandemia de covid-19 y la conducta agresiva en adolescentes que regresan a clases presenciales después del periodo de confinamiento
Authors: Márquez González Claudia Verónica , Quintero Ochoa Karely Itzel , Pérez Ruvalcaba Sara Lidia , Rodríguez Morrill Evelyn Irma
Published: July 2023

Se analizó la relación entre el uso de videojuegos durante el confinamiento por pandemia de COVID-9 y la conducta agresiva en adolescentes mexicanos. La muestra fue de 216 adolescentes; 98 hombres (45.4%) y 118 mujeres (54.6%), estudiantes de secundaria, con edades entre los 12 y 15 años (M=13.3, DT=.884). Se aplicaron dos cuestionarios para medir las variables de estudio. Los resultados muestran correlaciones positivas y altamente significativas entre la frecuencia del uso de algunos videojuegos (fornite, free fire, call of duty) y la conducta agresiva, asimismo, entre el tiempo invertido en los videojuegos y la agresividad proactiva. Además, las mujeres puntuaron más alto que los hombres en agresividad reactiva. La discusión gira en torno a la mayor accesibilidad de los adolescentes a diversos dispositivos electrónicos durante la pandemia y la importancia de un adecuado monitoreo parental en el uso de estos dispositivos.
Receptarea lui Mihai Eminescu în Serbia: traduceri, manuale, studii
Authors: Popović Virginia , Juică Brândușa , Negru Marinel
Published: July 2023

Interesul pentru traducerea poeziilor lui Mihai Eminescu în limba sârbă nu a fost foarte mare, mai ales din cauza dificultății lexicului sau a intraductibilității expresiilor eminesciene în limba sârbă. Totuși, cu toate că limba sârbă aparține altei familii lingvistice, cele mai cunoscute poezii ale lui Eminescu au putut fi traduse foarte bine datorită vorbitorilor bilingvi, care au putut înțelege mesajul eminescian și care au cunoscut foarte bine limba sârbă ca să poată găsi termenul potrivit. Traducătorii poeziei lui Eminescu s-au străduit să păstreze în limba sârbă nealterate forma, ritmul și mesajul liric. Receptarea critică a lui Eminescu în spațiul lingvistic sârbesc nu prea este bogată. În lucrarea de față vom încerca să realizăm o retrospectivă a receptării lui Eminescu în Serbia. Vom pune accentul pe trei aspecte: pe traducerea poeziilor, pe critica asupra operei lui Eminescu în Serbia și pe prezența liricii eminesciene în manualele și lectura școlară din Banatul sârbesc. Scopul acestei cercetări e să descoperim în ce măsură elevii români din Serbia/ cititorii sârbi cunosc opera celui mai mare poet român, Mihai Eminescu.
Network analysis of quantitative encephalography
Authors: Fonseca André
Published: July 2023

This is a technical video on hands-on format introducing the concepts of neural connectivity and complexity measures with applications to neurostimulation assessment, based on the brain network analysis. The scientific relevance of this submission is the introduction of the small-world parameter, a graph complexity measure considered as a biomarker of brain disordes and used to validate neurostimulation therapies. The small-world is a technical network feature but addressed in this presentation as a brain network efficiency measure, in a concise and assertive way, not common in the literature. The narrative is didactic and accessible to researchers from several fields, suitable for professional and educational applications, allowing the generalization of the addressed techniques.
Effects and parameters of taVNS in individuals with atrial fibrillation: an infographic
Authors: Ribeiro Maria Williane de Sousa , Miranda Nicole Beatriz Nascimento , Estevam Fernanda Leite Dias Dantas , Lopes Tiago da Silva
Published: July 2023

INTRODUCTION: Transcutaneous auricular vagus nerve stimulation (taVNS) is a non-invasive neuromodulatory technique used to module autonomic excitability through the electrical stimulus of the vagus nerve. Studies have shown that taVNS can be used as a therapeutic strategy for arterial fibrillation (AF) management. This infographic aims to highlight the evidence about the effect and parameters of taVNS in individuals with AF. METHOD: We conducted a review using the PubMed mesh combination (Transcutaneous Electric Nerve Stimulation)AND(Nerve Stimulation, Vagal))OR(Nerve Stimulation, Vagus))OR(Nerve Stimulations, Vagal))AND(Atrial Fibrillation) that included six taVNS clinical trials with human adults over the age of 18. RESULTS: taVNS can promote an increase in the PQ interval on the electrocardiogram by increasing the parasympathetic tone. Moreover, the taVNS can prevent AF progression through antiarritmogenic effects, such as antiadrenergic mechanisms of neural remodeling, and a decrease of pro-inflammatory cytokines and AF of burden. DISCUSSION: The acute effect of taVNS can increase the P - wave alternans (PWA), which is believed to be related to AF. However, the chronic effect of taVNS for six months promotes a decrease in PWA and AF burden. In addition, the taVNS can alter the heart variability ratio parameters through the increase of the HF/LF relation in individuals with AF, which can be a signal of sympathovagal rebalance. However, the taVNS can improve the autonomic balance through the decrease in HF/LH relation in healthy individuals. CONCLUSION: The taVNS can be a useful therapeutic tool in the management of individuals with AF due to its antiarritmogenic effects.