bluuebunny/crossref_metadata_2025 huggingface dataset:
Information value of echocardiography in inferior myocardial infarction at different stages of observation
Authors: Akramova Endge G. , Vlasova Evgeniia V. , Saveliev Anatoly A. , Zakirova Elvira B.
Published: March 2024

BACKGROUND: A wide range of indicators and examination methods in acute myocardial infarction complicates their interpretation, affecting the objectivity and reliability of the final conclusions. In this situation, the results of a multivariate mathematical analysis can serve as a guide, allowing one to determine statistically significant indicators and establish a range of critical values for a particular case.
AIM: to establish prognostically significant ranges of global and segmental deformation of the left ventricle using speckle tracking echocardiography in patients with acute inferior wall myocardial infarction of the left ventricle, who have undergone primary percutaneous coronary intervention, at the time of discharge from the hospital and in the long-term period.
METHODS: Using speckle-tracking technology, the echocardiographic data were analyzed at the time of discharge and on the second year for 144 patients with acute inferior myocardial infarction of the left ventricle who underwent percutaneous coronary intervention. In the post-infarction period, 10 patients underwent magnetic resonance imaging and 15 patients underwent stress echocardiography.
RESULTS: Using the tree construction method, the critical values of 7 ultrasound parameters were identified (for the left ventricle — ejection fraction, end-systolic volume index, global longitudinal and circular strains, for the right ventricle — tricuspid S’, global longitudinal strain, free wall strain), which predict a repeat revascularization with a probability of 89.4%. The identification of the possible areas of myocardial fibrosis in the remote period by speckle-tracking echocardiography has a sensitivity of 46–57%, specificity of 68–76%, and a negative predictive value of 74–87% relative to the gold standard detection of post infarction scarring by magnetic resonance imaging. According to the results of stress-echocardiography, new zones of local contractility impairment registered after exercises were not accompanied by changes in the segmental longitudinal deformation.
CONCLUSION: The results of echocardiographic screening using speckle-tracking technology in patients with acute inferior myocardial infarction of the left ventricle have high prognostic significance in assessing the likelihood of repeated revascularization at the time of discharge and diagnostic information value for verifying post-infarction fibrous changes in the long-term period.
Sirtuins in the pathogenetic therapy of neurodegenerative diseases
Authors: Samoilova Ekaterina M. , Ivanova Alina A. , Laktionov Petr P. , Kalsin Vladimir A. , Romanov Stanislav E.
Published: March 2024

The progressive decline in the physiological functions during aging leads to various diseases that place a heavy burden on patients, their families and the society as a whole. Due to the increasing average life expectancy, the problems of prevention and treatment of age-related diseases are becoming more and more relevant. As a part of the research on the regulation of the aging program, considerable attention has been focused on a small family of NAD+-dependent deacetylases and deacylases called sirtuins. These proteins are involved in the regulation of numerous intracellular processes, and disruption of their functions plays an important role in the development of various diseases, such as metabolic disorders, pathologies of the cardiovascular system and other organs, musculoskeletal diseases, and neurodegeneration. It is interesting to note that the activity of sirtuins can be modulated to some extent under the influence of pharmacological agents, which makes them promising targets for the prevention and therapy of age-related diseases. The aim of the current review is to summarize the effects of sirtuins on the development and pathogenesis of neurodegenerative diseases, taking into account the reported clinical trials on the pharmacologic agents affecting the sirtuins’ activity.
Temporary Seismic Network in the Metropolitan Area of Rome (Italy): New Insight on an Urban Seismology Experiment
Authors: Vassallo Maurizio , Cultrera Giovanna , Esposito Alessandro , Mercuri Alessia , Bobbio Antonella , Di Giulio Giuseppe , Milana Giuliano , Bordoni Paola , Ciaccio Maria Grazia , Cara Fabrizio
Published: March 2024

This study presents data and preliminary analysis from a temporary seismic network (SPQR), which was deployed in the urban area of Rome (Italy) for three months in early 2021. The network was designed to investigate the city’s subsurface while evaluating the feasibility of a permanent urban seismic network, and consisted of 24 seismic stations. Despite significant anthropogenic noise, the SPQR network well recorded earthquake signals, revealing clear spatial variability referable to site effects. In addition, the network’s continuous recordings allowed the use of seismic noise and earthquake signals to derive spectral ratios at sites located in different geological and lithological settings. During the experiment, there were periods of activity restrictions imposed on citizens to limit the spread of COVID-19. Although the observed power spectral density levels at stations may not show visible noise reductions, they do cause variations in calculated spectral ratios across measurement sites. Finally, a statistical noise analysis was conducted on continuous seismic station data to evaluate their performance in terms of detection threshold for earthquakes. The results indicate that all network stations can effectively record earthquakes with a good signal-to-noise ratio (≥5 for P and S phases) in the magnitude range of 1.9–3.3 at distances of 10 km and 80 km, respectively. In addition, the network has the potential to record earthquakes of magnitude 4 up to 200 km, covering areas in Central Italy that are far from the city. This analysis shows that it is possible to establish urban observatories in noisy cities such as Rome, where hazard studies are of particular importance due to the high vulnerability (inherent fragility of its monumental heritage) and exposure.
A fundamental challenge. Are the affordances of political science being wasted?
Authors: Ilyin M.V.
Published: March 2024

The author recalls the reveries of the times of the creation of the journal Polis. He critically assesses
three decades of attempts to nurture the achievements of world political science. He admits that the results of these efforts are far from expectations. The reasons are the haste to act and our miopic vision of the standards of world political science, as well as the awkward backwardness of these standards themselves. The generic trauma of the newly emerging political science goes with the reductive adjusting of evolving practices of political goal- attainment to the straitjacketing models of jurisprudence, philosophy and history. As Ch. Tilly has shown, the corresponding pernicious postulates were questioned only during the glorious twenty years of political science renewal in the 60s and 70s of the last century. These pernicious postulates are related to the reduction of evolving political phenomena to simplistic mechanistic schemes and abstractions. They continue to dominate mainstream political science. As for the alternative possibilities of political science, they require taking into account the spatio-temporal variability of political phenomena and using an expanding and increasingly complex researchapparatus. The author gives a number of examples of such sophisticating renewal, including the treatment of the existence of nations as everyday referendum (Renan), of diverse polities as mestorazvitiya (evo-localizings, lit. place-developments) (Savitsky), of political institutions as conceptual variables (Nettl), of crises as alternating phases of dissynchronization and resynchronization (Almond and colleagues), of center-periphery polarization (Rokkan). The article also mentions the efforts of R. Dahl and F. Schmitter to “save” modern democracy from various kinds of reductions by reinterpreting it in terms of polyarchy and accountability. It refers to the geochronopolitics of G. Modelski and further similar ventures of V. Tsimburski. It also cites efforts of A. Melville and his colleagues in correcting the reductive rendering of the global community of states by extending the factual scope multidimensionality of its analysis. Further cases include the fuller and more multidimensional consideration by G. Tsebelis and R. Putnam of alternative policies and aspirations in terms of nested, two- and multidimensional games, and finally, the efforts of W. Patzelt to instigate an evolutionary morphology of politics.
Theory of world politics: assessing the potential for transfer
Authors: Lebedeva M.M. , Gavrilenko N.V. , Zakharov D.S. , Kucherov M.A.
Published: March 2024

In international studies, there are many borrowings from other disciplines at the level of metaphors, concepts, etc. In this regard, the question is raised about a possible reverse transfer, i.e. from the sphere of world politics to other scientific spheres, including not only socio-humanitarian, but also the natural sciences. The article analyzes a successful example of such a transfer given by R. Axelrod in the early 2000s, as well as subsequent attempts to theoretically validate the conditions for export from the field of international studies to other areas. Two approaches have been identified. Within the framework of the first approach, it is proposed to create an interdisciplinary theory, since international relations are able to integrate various humanitarian and social disciplines. The second approach allows for a “pluralistic” and “blurred” subject field of the theory of international relations, in which various theoretical and methodological lines can coexist and enter into discussion with each other (societal multiplicity), rather than remain isolated. It provides opportunities for its “export” to other scientific fields. A critical analysis of these approaches allows us to conclude that in both the first and second cases, the political focus of international research is lost. The article substantiates the subject area of world politics as the exertion of political influence in the international arena by state and non-state actors. Based on this, the authors of the article put forward a third direction. The essence of it is that the search for the possibility of exporting from international research to other scientific fields does not lie in the creation of an interdisciplinary theory, and not in the formation of a “blurred” subject field that ensures “societal multiplicity”, but in the similarity of the situations under consideration. The authors show that the degree of similarity of situations depends on a number of factors, including the behavior of actors/objects being in conditions that are relatively the same. Examples are given by comparing situations and theoretical concepts of international relations and world politics with situations and concepts in other scientific fields - meteorology, medicine, ethology. At the same time, the place of the “political” in other spheres is occupied by the dominant object/factor.
Religion in modern projects: between alarmism, political expediency and utopia
Authors: Mchedlova M.M.
Published: March 2024

The permanent shift of modernity, the epistemological crisis, and the politicization of all social spheres determine an atmosphere of global political anxiety. The ever-expanding security deficit becomes an attribute of modernity, as a fragmentation as a response to globality and the emergence of alternative ways of political genesis reflects new socio-cultural semantic nodes. Existential threats raise a persistent appeal to religion. The loss of epistemological certainty in political constructions contributes to the theoretical confusion about the future. The diffusion of political and value contexts forces people to turn to religion while developing projects and setting the goals of modernity. This creates cognitive and political- instrumental difficulties in using legitimizing and, at the same time, mutually exclusive religious meanings. The simultaneous truth in different types of discourses and in theory makes it impossible to find a common denominator. We argue that the projects and goal settings of modernity, claiming to be universal, but not achieving it, are structured primarily based on the logic of alarmism and eschatology. A positive project, trying to overcome the limitations of politicization, moves to the value plane. We consider three perspectives of the teleology of modernity, including religious meanings: theoretical, metaphysical, and instrumental. The research methodology is based on the problems of political goal setting in the logic of, traditional/ modern, explaining the religious coloring of political strategies and the splitting of future visions. The othering based on religious differences as a tool of political goal setting, the political instrumentalization of religious identities, simultaneously with religious creation of the world, puts two possible projects of modernity at opposite poles - the World of Religions and the World of Faith. Among the possible projects arising at the intersection of religion and politics, the author suggests three large clusters: alarmism, political expediency, and utopia.
Frecuencia de enfermedades periodontales y características clínicas de pacientes atendidos en la Cátedra de Periodoncia de la Universidad Autónoma de Asunción
Authors: Invernizzi-Mendoza Carlos Rafael , Cardozo-Vera Rosa María , Chamorro-Giménez Stella Anahi , Acosta-de Hetter María Eugenia
Published: March 2024

Las enfermedades periodontales son consideradas entre las más comunes entre las patologías bucales. Su frecuencia es cada vez más elevada en la población y existen varias patologías sistémicas y hábitos que empeoran su cuadro clínico. El objetivo de este trabajo fue determinar la frecuencia y características clínicas de pacientes con enfermedades periodontales que acuden a la cátedra de periodoncia en la Universidad Autónoma de Asunción en el período de 2011 al 2019. Estudio Observacional, descriptivo, retrospectivo, se procesaron 477 fichas clínicas de pacientes de la cátedra de Periodoncia de la Universidad Autónoma de Asunción desde el año 2011 al 2019. El tipo de muestreo utilizado fue no probabilístico por conveniencia. De las 477 fichas solo se analizaron 317 pacientes que cumplieron con los criterios de inclusión. Fueron el 56.46 % de sexo femenino y 43,53 % de sexo masculino, la mediana de edad fue de 33 (23-48) años. El 53% los pacientes presentaban periodontitis crónica y comorbilidades como diabetes e hipertensión arterial. Solo el 11,9 % fueron fumadores. En cuanto a los pacientes diabéticos la mayoría eran de sexo femenino y de edad avanzada, presentando como diagnóstico más frecuente la periodontitis crónica. El diagnóstico clínico más frecuente de la población estudiada fue la periodontitis crónica, seguido por la gingivitis.
DETERMINATION OF THE PERFORMANCE OF LIGHT SHELVES FOR MORE EFFECTIVE BENEFIT FROM DAYLIGHT IN BUILDINGS
Authors: Günseli Demirkol Hatice , Meral Furkan
Published: March 2024

Studies on the efficient use of daylight in sustainable architectural design and energy conservation are increasing. Indoor lighting methods include daylighting, artificial, and integrated lighting. Basic priorities in lighting are such as “effective use of daylight”, “uniform illumination in space”, “glare control”, “visual connection with the external environment” and “daylight harvesting.” Advanced contemporary systems include light shelves and light tubes. Light shelves consist of horizontal or slightly angled elements that can be applied to the inner and outer surfaces of the window openings, usually at eye level, to block the daylight or to reflect it to the ceiling, integrated with the facade, or added later. In this research, light shelves, which is one of the advanced daylighting methods, are emphasized. Daylight analysis method was carried out with the help of a physical model and computer simulation techniques using DiaLux software. To effectively utilize the daylight factor in the internal volume through light shelf, certain parameters such as the height and angle of the light shelf, date and time, and direction of the room's opening, play a crucial role. In daylight analyzes, these parameters were subjected to experimental testing both in physical models and through computer simulations. As a result of the comparison of the obtained data, alternatives that will provide the opportunity to benefit from daylight in the most effective way have been identified. The results obtained have unique value and widespread impact in terms of sustainable architecture and energy saving. The study's originality lies in its specific measurements of the latitude in which it is located, as it is the first time the study is conducted under Eskisehir's conditions. In addition, the examination of the advantages and disadvantages of the light shelf in specific combinations is another original side of the project.
Hábitos de estudio y la compresión de textos en universitarios: Análisis bibliométrico
Authors: Alarcón La Rosa Cronwell Jhonatan
Published: March 2024

El artículo aborda la compleja tarea cognitiva de comprender la lectura y desarrollar hábitos de estudio efectivos, destacando la influencia de la creatividad del lector, la conexión intertextual y la acción de leer como un proceso interpretativo. Se resalta la problemática en la enseñanza universitaria, con estudiantes provenientes de niveles educativos básicos, lo que impacta en su desempeño académico. Se mencionan factores como la motivación y la procrastinación académica, así como resultados preocupantes en las evaluaciones PISA respecto a la comprensión lectora en Perú. La metodología empleada incluye la búsqueda y análisis de artículos científicos sobre hábitos de estudio y comprensión de textos, utilizando Scopus y VOSviewer. Los resultados y discusiones revelan la relación entre hábitos de estudio y rendimiento académico, destacando la importancia de actitudes favorables hacia el estudio. Además, se presenta un análisis bibliométrico que muestra la producción académica en estos temas, con énfasis en España. En las conclusiones, se sugiere implementar estrategias específicas para mejorar la comprensión de textos críticos, a pesar de que la evidencia sobre hábitos de estudio ya es considerable. Se recomienda realizar estudios adicionales con muestras más representativas para comprender mejor la relación entre hábitos de estudio y comprensión de textos críticos.
Propuesta inicial de un modelo explicativo del sentido de vida en universitarios
Authors: Quispe Hurtado Camila Sharoon , Yanapa Vilca Susan Belén , Hancco Ninaja Saira Liseth , Blanco Alave Stephanie
Published: March 2024

El propósito de este estudio fue examinar un modelo explicativo del sentido de la vida basado en la felicidad subjetiva y la satisfacción con la vida en jóvenes universitarios de Tacna. Se llevó a cabo un muestreo no probabilístico por conveniencia, reclutando a 150 participantes de entre 18 y 34 años en la ciudad de Tacna. Se aplicaron tres instrumentos de medición: la prueba de Sentido de Vida, la Escala de Felicidad Subjetiva y la Escala de Satisfacción con la Vida. Los resultados revelaron que el modelo variaba según el estimador utilizado, siendo el más apropiado el WLSMV, que mostró índices aceptables (X2/gl=0.19; CFI=1.00; TLI=1.02; PFNI=0.79; SRMR=0.03; RMSEA=0.00), lo que lo convierte en la opción más adecuada. Además, se observaron algunos valores superiores a uno, posiblemente atribuibles a la cantidad de datos empleados en el análisis. En consecuencia, se concluye que tanto la felicidad subjetiva como la satisfacción con la vida actúan como predictores del sentido de la vida.
Resilient business strategies in the German hospitality industry and its viability
Authors:   Hochschule Fulda – University of Applied Sciences Department of Nutritional, Food and Consumer Sciences, Ruppenthal Tonia , Rückert-John Jana ,   Hochschule Fulda – University of Applied Sciences Department of Nutritional, Food and Consumer Sciences
Published: March 2024

This study aimed to investigate the German hospitality industry to find out which resilient business strategies operational managers applied during the COVID-19 pandemic and which are considered viable for the future. Drawing on a multiple case study approach, semi-structured online expert interviews were conducted with twelve operational managers from certain sectors of the German hospitality industry. A manual qualitative content analysis was applied to analyse data and to identify resilient business strategies for the COVID-19 pandemic through an iterative coding process. The study results show that operational managers applied diverse resilient business strategies within six areas: grocery shopping, food processing and menu planning, work environment and workplace, guest and customer world, marketing and sales concepts and under prospective perspectives. The business strategies are resilient, as operational managers responded to the crisis in a situation- and organisation-specific manner and implemented transformative business activities. This study provides valuable insights for organisations, managers and practitioners in the different hospitality industry sectors by identifying resilient business strategies in times of crisis. It also highlights what business strategies are considered viable for the future, which could thus serve as a blueprint for the hospitality industry.
Aprendizaje-servicio universitario. Participación estudiantil, servicio y desarrollo de competencias
Authors: Luna González Esther , Gezuraga Amundarain Monike , Legorburu Fernández Idoia
Published: March 2024

El Aprendizaje-Servicio (A-S) aporta beneficios educativos tanto en el alumnado, como en el profesorado y en la comunidad en general. En este artículo se presenta un estudio diagnóstico comprensivo de la realidad con enfoque cualitativo en el que se analizan las competencias desarrolladas, la caracterización del servicio ofrecido y los procesos participativos de los estudiantes universitarios que realizan actividades de A-S. Las técnicas de recogida de información han sido la entrevista y el grupo de discusión. La muestra está formada por estudiantes, profesorado y representantes de entidades sociales. La técnica de análisis de datos ha sido el análisis de contenido y se ha utilizado la estrategia de la triangulación entre las aportaciones de diferentes informantes. La mayoría de las y los participantes están satisfechos con el servicio ofrecido. El alumnado identifica mejoría en competencias como: el trabajo en equipo; el compromiso ético; la adaptación a situaciones nuevas y la resolución de problemas. En relación con la participación, tanto el servicio como los aprendizajes se ven condicionados por elementos como los niveles de participación, entre otros. En conclusión, se evidencia que el A-S constituye una estrategia de trabajo que fortalece y desarrolla actitudes de educación para la ciudadanía articulando actividades con la comunidad desde el currículum institucional.
Prueba de Acceso a la Universidad como factor condicionante en la orientación del Bachillerato
Authors: Luzarraga Martín Jon Mikel , Cruz Iglesias Esther , Sáenz Arrizubieta Elixabete
Published: March 2024

El presente trabajo se enmarca dentro de la línea de investigación sobre factores que contribuyen a la eficacia y mejora escolar y tiene por finalidad aportar evidencias acerca de la relación existente entre la formación del profesorado de Bachillerato, la formación en competencias del alumnado, la Evaluación de Bachillerato para el Acceso a la Universidad y la labor de los Departamentos de Orientación con el fin de identificar aspectos que contribuyan a una mejora de la orientación en esta etapa. Se realiza un estudio de caso de un centro de Bachillerato de la Comunidad Autónoma del País Vasco con objeto de conocer esta realidad desde la perspectiva de los y las profesionales, progenitores y alumnado de un centro educativo. Los resultados señalan que la EBAU genera una cultura y unas expectativas orientadas hacia la vía universitaria y muestra tener un sistema de evaluación que no evalúa por competencias. La presión que ejerce la preparación de la prueba dificulta el desarrollo competencial en esta etapa. Se concluye que la cultura arraigada y la dinámica de la EBAU, dificulta una orientación académica y profesional individualizada en esta etapa, muchas veces, incluso, dejando en un segundo plano la vía de la Formación Profesional de Grado Superior y la vía de las Enseñanzas de Régimen Especial.
Evaluation of Different Strengthening Projects of Yenice Kalaycılar Primary School According to 2007 and 2019 Turkish Earthquake Regulations
Authors: Coşkun Mustafa Esat , Gürsoy Şenol , Garip Zehra Şule
Published: March 2024

Earthquakes that frequently occur in Turkey may cause structural damage in structures, and/or existing structures cannot provide the new earthquake code requirements. This matter requires us to check the static suitability of existing structures and strengthen them when necessary. In this article, a comparative evaluation of two different strengthening projects, which are considered to be implemented in Kalaycılar primary school in Yenice district of Karabük province, according to 2007 and 2019 Turkish earthquake regulations, is made. For this purpose, the survey projects of the said school building were first prepared, and laboratory experiments were carried out according to the level of comprehensive knowledge. Then, according to the findings obtained from the laboratory experiments, the performance analyses of the school building in question were made according to the 2007 and 2019 Turkish earthquake regulations. According to carried out the performance analyses, two different strengthening projects prepared for the school building have presented some results and suggestions by comparing the 2007 and 2019 Turkish earthquake regulations.
Photocatalytic Performances of ZnS/g-C3N4 Nanocomposites with Different Mass Ratios
Authors: Doğan Bilge , Özdemir Agah Oktay , Çağlar Bülent , Keleş Güner Eda
Published: March 2024

In this study, we prepared a series of ZnS/graphitic-C3N4 nanocomposites in various mass percentages and morphological properties of all the nanocomposites were examined by utilizing SEM/EDX technique. The photocatalytic performances of ZnS/graphitic-C3N4 nanocomposites were evaluated by degradation of Rhodamine B molecules under visible light. The photocatalytic performances of all nanocomposites under various photocatalyst dosages and initial Rhodamine B concentrations were further investigated for determination of optimal conditions.the obtained results indicated that ZnS/graphitic-C3N4 nanocomposites show almost 2 times higher photocatalaytic performances than pure graphitic-C3N4 and ZnS nanoparticles. The scavenger studies showed that the superoxide radicals had a major role in the photodegradation and the photodegradation of Rhodamine B follows the pseudo-first-order kinetic.
Exploring Novel Schiff Base Compounds Derived from Benzothiophene-3- carboxaldehyde Hydrazones: In vitro and In silico Evaluation as Potential Inhibitors of Cholinesterases and Carbonic Anhydrases I-II
Authors: Gürsoy Şule , Çaka Zeynep , Faydalı Nagihan , Sirinzade Hanif , Dilek Esra
Published: March 2024

In this study, inhibitions of some cytosolic enzymes were evaluated. Inhibitors of these enzymes can help illuminate and treat many related diseases (Alzhaimer, Parkinson's, Glaucoma, etc.). It is aimed to minimize drug side effects with multiple effects in one molecule. For this purpose in vitro effects of two benzothiophene Schiff bases on cholinesterases (AChE and BuChE) and human carbonic anhydrase isoforms (CAI and CAII) were investigated. Molecular modeling studies were carried out to elucidate the inhibition mechanism of two effective compounds on these enzymes. Then, two benzothiophene Schiff bases (1a and 1b compounds) were tested in vitro on these enzymes. The in vitro study results supported the in silico study results. Obtained results revealed that the benzothiophene derivatives inhibited the enzymes significantly. Ki values for CAI isoenzyme were determined to be in the range of 58.82 ± 7.96-126.28 ± 26.22 nM; for the CAII isoenzyme in the range of 27.86 ± 3.76-74.30 ± 7.89 nM; for acetylcholinesterase in the range of 1.31 ± 0.39-2.16 ± 1.01 nM; for butyrylcholinesterase in the range of 1.80 ± 0.27-2.01 ± 1.67 nM. Compared to the AZA control compound, 1b has demonstrated more strong inhibitory effect against CAI and CAII. Wherease compared with other control compound Tacrine, both compounds showed more potent inhibitory effect for cholinesterases (AChE and BuChE).
Experimental evaluation of gasoline-hexane fuel blends usage in a spark ignition engine
Authors: Kocakulak Tolga , Boyacıoğlu Nurettin Mert , Dağoğlu Yusuf , Uyumaz Ahmet , Aksoy Fatih , Arabacı Emre
Published: March 2024

In the present study, the influences of hexane addition to gasoline were researched on performance and exhaust emissions in a SI engine. It was aimed to increase engine performance and thermal efficiency of spark ignition engine. So, a single cylinder, four stroke SI engine was operated with gasoline and gasoline/hexane fuel volumetric mixtures (H10, H20, H30 and H40) at wide opening throttle (WOT) and 4000, 3600, 3200, 2800 and 2400 rpm. It was seen that engine torque and power output decreased while SFC increased with the addition of hexane in the fuel blends. Engine torque decreased by 5.69%, 7.66%, 10.80%, 14.86% with H10, H20, H30 and H40 compared to gasoline at 2800 rpm grespectively. Thermal efficiency declined by 3.27%, 7.50%, 8.95% and 11.12% using H10, H20, H30 and H40 test fuels compared to gasoline at 2800 rpm respectively. Higher CO and HC were measured with fuel blends according to gasoline for all test fuels. CO reduced by 3.77% with H40 compared to H10 at 3200 rpm. On the contrary, CO2 increased by 16.49% with H40 compared to H10 at 3600 rpm. HC increased by about 21.26% H40 compared to H10 at 3200 rpm. Although there is no positive difference on exhaust emissions and thermal efficiency is reduced, gasoline/hexane fuel mixtures can be used without modifications in SI engines.
Biodiesel production from waste frying oil by electrochemical method using stainless steel electrode
Authors: Balki Mustafa Kemal
Published: March 2024

Biodiesel production from waste frying oil is important in terms of effectively utilizing waste and reducing production costs. It is important that the production method of biodiesel is environmentally friendly, economical, and sustainable. For this purpose, electrochemical transesterification process with stainless steel electrodes instead of rare metal electrodes was preferred in this study for biodiesel production. In this study, where SS304 class AISI 304 stainless steel was used as an electrode, biodiesel was produced from waste frying oil by electrochemical method. An electrolyte was prepared with 8:1 molar ratio of methanol, 2% by weight distilled water, 2% THF, 0.5% NaCl and waste frying oil. The conversion efficiency and fuel properties of biodiesel produced in the electrochemical process lasting 3 hours with a reaction voltage of 20 V were determined. The results were compared with biodiesel produced by conventional methods. According to the results, a conversion efficiency of 68% was achieved in the electrochemical process. Moreover, it has been determined that biodiesel properties are compatible with EN 14214.
Optimizing Energy Consumption in Buildings: Intelligent Power Management Through Machine Learning
Authors: Talib Marwa Mushtaq , Croock Muayad Sadik
Published: March 2024

In the realm of energy conservation, managing power consumption within buildings emerges as a pivotal challenge. This study introduces sophisticated models that optimize energy usage by intelligently managing power distribution in various zones of a building. To achieve this, four machine learning classifiers, Random Forest (RF), Support Vector Machine (SVM), K-Nearest Neighbor (KNN) algorithm, and Naive Bayes (NB), were employed. These classifiers were integrated with feature reduction techniques, namely Boruta and Principal Component Analysis (PCA), to diminish model complexity. The study delineates three distinct power management strategies: Full, Selected, and Shutdown. The effectiveness of these models was evaluated using a dataset obtained from a building's energy consumption measurements. A comparative analysis revealed that the integration of the RF classifier with the Boruta feature reduction method significantly excelled, achieving a classification accuracy of 98%. Additionally, this combination demonstrated an execution time of merely 0.4549 seconds. The findings of this research not only underscore the efficacy of combining specific machine learning classifiers with feature reduction techniques but also highlight the potential of such integrations in optimizing energy consumption in building environments. This approach paves the way for more energy-efficient and sustainable building management practices.
STUDENT INSTRUCTIONAL RATING SYSTEM: UM ESTUDO JUNTOS AOS ESTUDANTES DE CIÊNCIAS CONTÁBEIS DAS UNIVERSIDADES PÚBLICAS DE ALAGOAS
Authors: Santos Weverton Alves dos , Araújo Rodrigo de Alencar Ferreira de , Silva Valdemir da , Dantas Anderson de Barros , Lima Andreza Cristiane Silva de
Published: March 2024

O objetivo deste estudo é identificar o grau de satisfação dos alunos de graduação do curso de Ciências Contábeis das Instituições de Ensino Superior Públicas de Alagoas, a partir das variáveis de percepção propostas por Paswan e Young (2002), modelo intitulado por Student Instructional Rating System. A pesquisa é descritiva quanto aos objetivos, quantitativa com relação à abordagem e tem seu procedimento realizado por intermédio de levantamento de dados, com amostra de 169 estudantes de Ciências Contábeis. Concluiu-se que os alunos universitários possuem uma dependência dos professores com relação a seu desempenho; também foi notado que o professor demonstra conhecimento sobre o que ensina, mas não procura saber se os alunos entenderam; na dimensão interesse do estudante foi verificado que os alunos se auto avaliam positivamente na maioria dos quesitos apresentados pelo modelo, porém, de forma geral não creem que se interessam ou participam das aulas, em termos gerais; por fim, a organização do curso aponta a estrutura das organizações como um empecilho no desenvolvimento do aluno. Com esses resultados, a gestão dos cursos pode conhecer seus déficits e se policiar para uma melhoria no funcionamento e no preparo dos futuros profissionais.
КЛЮЧОВІ НАПРЯМКИ РОЗВИТКУ ПІДПРИЄМСТВ ТУРИСТИЧНОЇ ІНДУСТРІЇ В ПІСЛЯВОЄННИЙ ПЕРІОД
Authors: Толстова А. В. , Кича Б. М.
Published: March 2024

В статті досліджено основні напрямки розвитку підприємств туристичної індустрії. Визначено основні причини і перешкоди розвитку туризму в Україні, як  виїзного так і внутрішнього. в післявоєнний період доцільним є збільшення асортименту туристичних послуг за рахунок реконструкції історичних пам’яток та  памяток архітектури, розвиток структури інформаційного забезпечення. У післявоєнний період доцільно розвивати підприємства туристичної індустрії у таких  напрямках як освітній, бізнесовий, медичний, зелений,  спортивно-оздоровчий, місцями  бойових дій. Визначено, що дієвим інструментом, який дозволить  підвищити якість національного туристичного продукту до рівня міжнародних та європейських  стандартів, ураховуючи глобалізацію туристичного ринку є туристичний кластер.
ОСОБЛИВОСТІ ФОРМУВАННЯ СТРАТЕГІЇ СОЦІАЛЬНОЇ ТРАНСФОРМАЦІЇ ПІДПРИЄМСТВ МІСЬКОГО ТРАНСПОРТУ
Authors: Броварник М. М. , Олехно М. Ю. , Тімофєєва Н. В.
Published: March 2024

У статті розкриваються ключові аспекти формування стратегії соціальної трансформації підприємств міського транспорту. Визначено основні перепони та перспективи розвитку сучасного міста. Зазначено, що цифровізація є одним із перспективних напрямів розвитку міського пасажирського транспорту. Окреслено основні етапи процесу розроблення стратегії соціальної трансформації підприємств міського транспорту. Названо найголовніші положення стратегії соціальної трансформації підприємств міського транспорту. Зазначено, що виконання стратегії соціальної трансформації окреслює досягнення показників, які визначають хід виконання поставлених задач та заходів, з метою забезпечення ефективності, доступності та якості соціальних послуг для всіх отримувачів, незалежно від їх місця проживання відповідності до стандарті, які гарантуються державою.
ІННОВАЦІЙНІ ПЕРСПЕКТИВИ РОЗВИТКУ БУДІВЕЛЬНОЇ ГАЛУЗІ В СУЧАСНИХ УМОВАХ ГОСПОДАРЮВАННЯ
Authors: Соломніков І. В. , Овсяннікова І. В. , Проценко В. О.
Published: March 2024

На сьогоднішній день подальші тенденції та перспективи розвитку будівництва в нашій країні характеризуються високим ступенем невизначеності, але для післявоєнної відбудови країни це сфера є необхідною. В дослідженні розкрито основні напрями інноваційного розвитку будівельної галузі. Окреслено, що сучасні світові тенденції інноваційного розвитку будівельної галузі пов'язують, перш за все, з сучасними методами будівництва, використанням новітніх будівельних матеріалів, інноваційними містобудівними способами розвитку або освоєння територій, а також широким використанням інформаційних технологій. Визначено, що застосування BIMтехнологій є одним з інструментів комплексної цифрової трансформації всієї будівельної галузі. Розкрито основні переваги застосування інформаційних технологій будівельної сфери, як перспективного напряму її інноваційного розвитку.
СОЦІАЛЬНА ВІДПОВІДАЛЬНІСТЬ УКРАЇНСЬКОГО БІЗНЕСУ: СТАН ТА АКТУАЛЬНІ АКЦЕНТИ РОЗВИТКУ
Authors: Дикань О. В. , Компанієць В. В. , Бела О. O.
Published: March 2024

В публікації на основі відповідних досліджень встановлено, що в мирні часи український бізнес (переважно великі підприємства), здійснював соціально відповідальну діяльність на мінімально необхідному рівні (базовому та нормативному). У мотивації такої діяльності  головними були моральні  міркування, а раціональна -  стратегічна (довгострокова) перспектива соціальної відповідальності майже не  усвідомлювалась. Під час війни український бізнес, навіть в скрутних умовах, зміг дотриматися мінімального рівня соціально відповідальної діяльності. Щоб вирішити складні питання, які стали перед українським соціумом під час війни, цього рівня  недостатньо. У зв’язку з цим ми визначили актуальні напрями реалізації соціальної складової соціальної відповідальності українського бізнесу в скрутний воєнний (повоєнний) час.
ROTEIRO CULTURAL DE SANTA CRUZ/RN
Authors: Silva Eduardo Cristiano Hass da , Silva Keity Kauane Pereira da , Carvalho Dariane Lourrena Silva de
Published: March 2024

A presente investigação tem o objetivo de identificar as possibilidades de apropriação do Patrimônio Cultural do município de Santa Cruz/RN pelo Turismo Cultural. A pesquisa resulta de uma prática pedagógica realizada na disciplina de Interpretação Patrimonial, componente curricular de caráter optativo do curso de Turismo em nível superior. Para atender ao objetivo da investigação, recorre-se aos conceitos de patrimônio cultural, cidades e roteiros culturais, fundamentados a partir do Turismo Cultural e da História. Metodologicamente, a investigação recorre à aplicação de um questionário, pesquisa histórica, realização de visitas técnicas e à construção de um roteiro cultural. Os resultados são parciais, mas já demonstram a possibilidade de construção de roteiros temáticos relacionados à vida e religiosidade sertaneja.
Extraction, Estimation and Utilization of Curry Leaf (Murraya koenigii) Stalks as a Potential Source of Antioxidants
Authors: Pyla Sai Geetha , Jahnavi Kore , Sagubandi Yamuna , Padmaja Ambati
Published: March 2024

Background: Processing wastes that are generated at industrial and house hold level are a huge concern. Utilization of these by-products and their bioactive compounds is a blooming industry at present. This study has been designed to unleash the potential of such by-product (stalks) and their possible application. Methods: In order to use plant by-products as a potential source of antioxidants, the methanolic, aqueous methanolic and aqueous extracts of the curry leaf stalks were studied. The nutrient, anti-nutrient, phytochemical content and in-vitro antioxidant activities were assessed for the stalks. The plant extracts were then incorporated in sunflower oil and tested for stability of oil upon repetitive deep frying. Result: Total phenolic content and flavonoids followed the order of aqueous methanolic greater than aqueous greater than methanolic extracts. The phytochemical analysis of the extracts for total flavanols followed the order aqueous greater than aqueous methanolic greater than methanolic. In vitro antioxidant activities of the extracts in DPPH, FRAP, reducing power and CUPRAC assays followed the order aqueous methanolic greater than methanolic greater than aqueous extracts. Therefore, aqueous methanol is a suitable solvent among the three solvents for extracting most active components with higher antioxidant activity from the stalks. Findings from the present study infer that Curry leaf stalks can be a potential source of natural antioxidants and can be used in foods and pharmacological formulas.
Productive Performance of Local Pasture in Manufahi District, East Timor
Authors: Correia B.A. , . Yuliaty , Correia L.T. , Tavares L. , Freitas J.D.C. , Noronha A.M.D.C.G. , Carvalho M.D.C.de.
Published: March 2024

Background: The nutritional value of feed is often of poor quality and seasonal supply erratic resulting in low levels of the carrying capacity of pastures. Local pasture needs to be managed and recorded for their existence because they are a valuable source of feed cheap and easy to obtain: botanical, chemical composition and carrying capacity, of grasses and legumes is being investigated. Methods: A survey and measurements direct observation in field. Measuring forage production using the “Actual Weight Estimate” method to obtain total forage production, botanical composition and carrying capacity. Chemical composition tested by Weende analysis. Result: Grasses species are dominant at Dotik while Legume at Fatucahi. The carrying capaicity is higher at Dotik but chemical comptotion of the forages is tend to similar at both areas.
An Antidote to the Pathologizing of Grief: Applying the Power–Threat–Meaning Framework
Authors: Poxon Lucy
Published: March 2024

Emerging theories of grief over the last 30 years have represented a shift from the healing of pathology to a focus on the adaptation to loss. Recently, however, there has been an alarming resurgence for a medicalized model of grief, most saliently evident in the removal of the bereavement exclusion from the diagnosis of major depressive disorder in theDiagnostic and Statistical Manual of Mental Disorders(5th ed.;DSM-5; American Psychiatric Association [APA], 2013) and the inclusion of prolonged grief disorder in theDiagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision(DSM-5-TR; APA, 2022). These have predictably opened up opportunities for the pursuit of pharmacological treatment including antidepressants and medication usually offered for recovery from alcohol and drug addiction. A pathologizing approach to grief can have a significant and detrimental impact on individuals and compromises the core humanistic values that underpin my professional identity as a counselling psychologist. I propose that we need a radically different lens, and the power–threat–meaning framework (PTMF), an alternative to psychiatric diagnosis developed by psychologists in the United Kingdom, offers us such an opportunity. Consideration is given to how the PTMF may be applied to grief therapy where it can embrace the uniqueness of grief responses and reframe it as an entirely understandable response to trauma and loss.
Construction and Validation of the Intrapersonal and Interpersonal Communication Scale in Nursing
Authors: Bras Cláudia Patrícia da Costa , Barbieri-Figueiredo Maria do Céu , Ferreira Manuela Maria Conceição
Published: March 2024

Background and Purpose:An absence of specific and precise instruments that measure the construct of intrapersonal and interpersonal communication in nursing was verified. This study aimed to construct and validate the intrapersonal and interpersonal communication scale in nursing.Methods:A psychometric study was conducted on a sample of 360 nurses from a hospital and university center in the central region of Portugal. Reliability was assessed through internal consistency and construct validity through exploratory and confirmatory factor analyses.Results:Four factors were decided upon: “self-efficacy,” “empathy,” “assertiveness,” and “self-knowledge.” Good internal consistency was obtained with Cronbach’s alpha and adequate quality of adjustment indexes for the model.Conclusions:The key global indicators of the model’s adjustment and reliability analysis express their quality for the Portuguese population.
Urban Green Space and Perinatal Health Inequities in the United States: A Literature Review
Authors: Aktan Nadine , Blumenfeld Julie , Schafer Robyn , Dorsen Caroline , Nocella Jill
Published: March 2024

Access to urban green space has been linked to positive health outcomes including enhanced perinatal health. The purpose of this article was to review, summarize, and synthesize what is known about the relationship between urban green space and perinatal health and outline implications for practice, policy, education, and research. Nineteen articles were included in this state-of-the-science review. Overall, it was found that limited access to green space is significantly related to adverse birth outcomes. These findings present an important opportunity for childbirth educators and other clinicians involved in the provision of prenatal and reproductive health care. Through education and intervention, poor perinatal outcomes may be mitigated. Clinical screening and education about the importance of access to and use of urban green space during pregnancy should be an essential component of preconception counseling and antenatal screening for at-risk populations. Policy makers should be made aware of these findings so that impactful change can be made in order to reduce disparities and promote health equity.