bluuebunny/crossref_metadata_2025 huggingface dataset:
Aplikasi Sistem Pakar Berbasis Android dengan Metode Certainty Factor untuk Mendiagnosis Penyakit pada Tanaman Karet
Authors: Hermanto Bambang , Sudirman Albertus , Junaidi Akmal , Pebriansyah Arif
Published: December 2023

Rubber is an important plantation commodity as a source of income, employment and foreign exchange opportunities, as an engine of economic development in new centers within the rubber plantation environment. Rubber plant diseases generally cause economic losses to rubber plantations. Lack of knowledge of farmers to control rubber plant diseases can result in losses and ultimately reduce farmers' income. Therefore, it is necessary to build a system that can diagnose diseases like an expert or an expert. The method used in this system is the certainty factor method which is used to prove whether a fact is certain or uncertain. This method is very suitable for expert systems that diagnose uncertainty. After that, a system validity test is carried out which aims to test the ability of the expert system to identify diseases. Based on the test results, the highest disease score was tapping groove disease with a disease percentage of 94.96%, while the lowest disease percentage was red root fungus disease with a percentage of 79%, with an average test result above 75% so that it was concluded that the system can diagnose rubber plant diseases well in accordance with the results of the diagnosis obtained.
Rancang Bangun Aplikasi Audit Internal Fakultas (Studi Kasus: FMIPA Universitas Lampung)
Authors: Ayu Desrizal Dwi , Tristiyanto Tristiyanto , Aristoteles Aristoteles
Published: December 2023

Evaluation of faculty performance is an assessment of the quality of a faculty at the University. This Accreditation Assessment is carried out internally as well as externally by the National Accreditation Board for Higher Education (BAN PT). The Faculty of Mathematics and Natural Sciences is one of the faculties at the University of Lampung, where faculty accreditation is the most important educational support used as an assessment criterion, namely vision, mission, objectives, student archives, and others. The amount of data is one of the problems faced by faculties in storing accreditation data. Referring to the above problems, it is appropriate to develop an "Faculty Performance Evaluation Information System and the University of Lampung Study Program Implementation Unit using the Laravel Framework" which can facilitate the process of searching for the archives and data needed. This information system was built using the prototype method with three stages, namely Listen To Customer (at this stage the system requirements analysis process is carried out based on customer requirements), Build/Revise Mock Up (at this stage the design and coding process is carried out according to customer requests), and Test Drives Mock Up (at this stage testing the system that has been made to the user is carried out). The coding for the development of this system uses the PHP programming language and to simplify the coding process for the Laravel framework design. The testing method used on this system uses the Black Box Testing method with the Equivalence Partitioning type. The result of this study is a Web-Based Faculty Performance Evaluation Information System that can facilitate staff in inputting the required data.
Pengembangan Aplikasi Penilaian Angka Kredit Dosen (Studi kasus: FMIPA Universitas Lampung)
Authors: Andrean Nunyai Alifia Intan , Tristiyanto Tristiyanto
Published: December 2023

According to Law Number 14 of 2005 on Teachers and Lecturers, lecturers are defined as professional educators and scholars whose primary responsibility is to transform, advance, and disseminate knowledge, technology, and the arts through education, research, and community service, often referred to as the Tri Dharma of Higher Education (Chapter 1, Article 1, paragraph 2). The assessment of lecturers' performance is deemed essential in the context of implementing the Tri Dharma of Higher Education to gauge the degree to which it is executed. In practice, lecturers are required to accrue credit points in line with the established standards specified in the operational guidelines for credit point assessment. Nevertheless, lecturers often encounter delays in the collection of these credit points, primarily due to the substantial amount of data used as assessment criteria and the manual creation of reports using Microsoft Excel. Consequently, this protracted process is responsible for the extensive time required for the preparation of Academic Qualification Credit Points (DUPAK) reports. To tackle this issue, the development of an Information System has been proposed to expedite and enhance the accuracy of data collection. The Information System is constructed using the prototype methodology, which encompasses three core phases: "Listening to Customer" to identify user requirements, "Building/Revising the Mock-Up" to develop the prototype, and "Testing the Mock-Up" to assess its compliance with user expectations. The system is coded using the PHP programming language, and the Laravel framework is employed to simplify the coding process. The system's functionality is rigorously tested using the Black Box Testing method with Equivalence Partitioning to ensure its reliability and accuracy. The outcome of this research is a Web-Based Lecturer Performance Evaluation Information System designed to streamline the DUPAK report creation process for lecturers, making it more efficient and precise.
Perbandingan Algoritme Dijkstra dan Algoritme A* (A-Star) dalam Penentuan Lintasan Terpendek dari Dinas Pendidikan Provinsi Lampung ke Beberapa Sekolah Menengah Atas (SMA) Negeri di Provinsi Lampung
Authors: Aulia Silvia Rizki , Wamiliana Wamiliana , Asmiati Asmiati , Notiragayu Notiragayu
Published: December 2023

In this research, we aim to find the most efficient route from the Lampung Provincial Education Office to various State Senior High Schools in Lampung Province, employing both the Dijkstra Algorithm and the A* (A-Star) Algorithm. To address this problem, we model it as a weighted graph, where the vertices represent the locations of the Lampung Provincial Education Office and the Public High Schools, and the edges' weights represent the distances. Furthermore, we implement the solution using the Python programming language. The outcomes demonstrate that both algorithms yield optimal results with the same distance and route. However, when considering the execution time of the program, the A* (A-Star) algorithm outperforms Dijkstra's Algorithm because it quickly identifies the shortest path from the starting point to the destination, whereas Dijkstra's Algorithm explores the shortest paths from neighboring points first.
FLORISTIC STRUCTURE OF JUNIPERUS COMMUNIS SUBSP. COMMUNIS-DOMINATED SCRUB FROM HILLY AND MONTANE AREAS OF ROMANIA
Authors:   National Institute of Research and Development for Biological Sciences, Institute of Biological Research Cluj, Republicii Street 48, 400015 Cluj-Napoca, Romania, FILIPAȘ Liviu , CIOBANU Marcel ,   National Institute of Research and Development for Biological Sciences, Institute of Biological Research Cluj, Republicii Street 48, 400015 Cluj-Napoca, Romania, COLDEA Gheorghe ,   National Institute of Research and Development for Biological Sciences, Institute of Biological Research Cluj, Republicii Street 48, 400015 Cluj-Napoca, Romania
Published: December 2023

Two new Juniperus communis subsp. communis syntaxa from Romania are presented from floristic, ecological and syntaxonomic points of view, completing the picture of the European distribution area of these shrubby communities. The phytocoenoses of Thymio odoratissimi-Juniperetum communis ass. nova are present on calcareous substrates and are rich in continental Eurasian, meso-xerophilous species, for which reason we assigned it to alliance Brachypodio pinnati-Juniperion communis Mucina et al. 2016, and class Crataego-Prunetea Tx. 1962. The communities belonging to Vaccinio myrtilli-Juniperetum communis Kovács ex Filipaș et al. campanuletosum abietinae subass. nova occur on acidic substrates, crystalline schists and gresous formations, and are rich in acidophilous species, characteristic for the class Calluno-Ulicetea Br.-Bl. et Tx. ex Klika et Hadač 1944. We assigned this new syntaxon to alliance Vaccinio-Juniperion communis Passage in Passage et G. Hoffman 1968 because of the high presence of Vaccinium species (V. myrtillus, V. vitis-idaea) in the sub-shrub layer of these phytocoenoses.
Teacher Well-Being: Between Counseling and Resilience Pedagogy
Authors:   University of Rome Foro Italico, Piazza L. De Bosis, 15, Rome 00135, Italy, Isidori Emanuele , Leonova Irina ,   Lobachevsky State University of Nizhni Novgorod, 23 Prospekt Gagarina, Nizhny Novgorod, 603950, Russia, Abele Agita ,   Latvian Academy of Sports Education, Brivibas gatve 333. Riga LV-1006, Latvia, Caione Gianni ,   Italian School of Addis Abeba, Belay Zeleke Street P.O. Box 970, Addis Abeba, Ethiopia, Zakharova Lyudmila ,   Lobachevsky State University of Nizhni Novgorod, 23 Prospekt Gagarina, Nizhny Novgorod, 603950, Russia, Sandor Iosif ,   Babes-Bolyai University, Pandurilor Street 7, Cluj-Napoca, Romania
Published: December 2023

"Teacher well-being is a critical factor in the overall success of educational institutions and plays a significant role in student outcomes. This paper delves into the intersection of counseling and resilience pedagogy as a comprehensive approach to support and enhance teacher well-being. By fostering resilience and providing professional counseling, we can address educators' challenges and promote a healthier, more supportive working environment. The study examines teachers' unique stressors and challenges, including high workload, emotional demands, and the pressure to meet performance standards. We then explore the potential benefits of counselling to provide emotional support, promote self-awareness, and equip teachers with coping strategies to manage stress and prevent burnout. Resilience pedagogy, however, focuses on cultivating the ability to adapt to and recover from adversities. This paper investigates the application of resilience pedagogy in the context of teacher well-being, outlining methods for enhancing resilience through professional development, self-reflection, and the establishment of supportive networks. We provide evidence-based recommendations for integrating counseling and resilience pedagogy in educational settings by drawing on empirical research, best practices, and case studies. We also propose a practical framework for schools and policymakers to develop and implement targeted interventions to promote teacher well-being. In conclusion, this paper has emphasized the importance of a dual approach that combines counseling and resilience pedagogy to address the well-being of educators. Investing in teacher well-being can create a more supportive environment that ultimately leads to improved educational outcomes for students and the long-term success of the education system."
Los negocios de la Compañía Bancaria y el Banco Central Mexicano en la provincia. La renovación del sistema de abasto de agua potable en Aguascalientes, 1905-1914
Authors: Gómez Serrano Jesús
Published: December 2023

En marzo de 1910, el gobernador de Aguascalientes contrató con la Compañía Bancaria de Fomento y Bienes Raíces la renovación del sistema de abasto de agua potable de la capital del estado y con el Banco Central Mexicano un préstamo de 1.3 millones de pesos para pagar las obras. Los trabajos se entregaron entre abril y mayo de 1911, al mismo tiempo que caía el régimen porfiriano. A partir de documentación de archivo y material hemerográfico, este artículo rastrea los orígenes de esos contratos, la forma en que acabaron en manos de la Compañía Bancaria, su desconocimiento por el gobierno maderista en febrero de 1912 y las grandes presiones a que fueron sometidas las autoridades locales por los cabilderos de la Bancaria. Se propone también un ejercicio de historia regional comparada, a partir de lo que sucedió en Puebla, Querétaro y Oaxaca, entidades en las que la Bancaria, el bcm y las empresas a ellos ligadas intervinieron también en la construcción de nuevos sistemas de sanidad y abasto de agua. Al final, se le sigue la pista a los bonos emitidos por el gobierno de Aguascalientes, que supuestamente fueron vendidos en la Bolsa de París, pero que en realidad nunca salieron de la caja fuerte del banco. Los pésimos términos en los que concluyó el negocio que emprendieron en Aguascalientes es uno de los factores que explican la ruina de la Compañía Bancaria y el bcm, que se consumó a fines de 1913.
Rede de conversação universidade e escola
Authors: Samá Suzi , Conceição Silveira da Silva Rejane
Published: December 2023

O presente artigo tem por objetivo apresentar como uma rede de conversação instituída entre uma universidade e uma escola (re)pensou o ensino de Estatística na educação infantil e nos anos iniciais do ensino fundamental. A constituição dessa rede de conversação, formada por professoras da escola e por professoras e estudantes da universidade, foi fundamentada no respeito pelo outro e na legitimação dos saberes. Os conceitos estatísticos foram discutidos a partir de propostas de atividades idealizadas na rede e inspiradas em pesquisas de integrantes do Grupo de Trabalho em Educação Estatística da Sociedade Brasileira de Educação Matemática. Assim, por meio da literatura infantil, do ensino através da pesquisa e da observação de fenômenos, conceitos estatísticos foram abordados em diferentes contextos — o que possibilitou experienciar outras realidades. As conversações estabelecidas de forma recorrente entre escola e universidade fomentaram a construção de um pensamento crítico sobre o ensino da Estatística.
Pengaruh Motivasi Diri, Efikasi Diri dan Penggunaan Teknologi terhadap Kepuasan Kerja
Authors: Kristiyana Naning , Cendriono Nanang , Hamidah Choirul
Published: December 2023

This study aims to examine the variables of job satisfaction which are influenced by self-motivation, self-efficacy, and use of technology factors. The objects in this study were employees of BUMN Madiun. The population is company employees who are in middle management by taking the saturated sample method. The results of this study indicate that only the use of technology factor has an effect on employee job satisfaction, while the self motivation and self efficacy factors have no effect on employee job satisfaction.
Espacialidade e espetáculo em Agamenão
Authors: Da Rosa Edvanda Bonavina
Published: December 2023

Este estudo aborda a tragédia Agamenão, analisando as relações espaciais da peça. Distingue os espaços presentes na narrativa, o palácio dos Atridas, a frente do palácio, a cidade de Argos, Cálcis, Troia e o Hades, do espaço cênico, a entrada do palácio. Levando em conta a importância da espacialidade para a representação teatral, a análise pretende evidenciar que, no teatro grego, o espaço visível alterna com os espaços não visíveis, para criar na imaginação do espectador o espaço que situa as personagens e suas ações.
A máscara e o poder: a tragédia latina no período imperial
Authors: Cardoso Zelia de Almeida
Published: December 2023

Figura de grande importância na política e nas letras, Sêneca discutiu os atributos ideais do imperador em seu tratado De clementia e pôs em realce as figuras de governantes nas tragédias que escreveu. Nessas peças, impregnadas do pensamento estóico, sugeriu as qualidades que eles devem ter para o pleno exercício do mando e mostrou que a violência dos tiranos é muitas vezes causa de catástrofes.
O Bellum Civile de Lucano sob o viés da intertextualidade
Authors: De Carvalho Aécio Flávio
Published: December 2023

Não obstante o consenso de que no Bellum Civile ou Farsália os recursos poéticos sejam abundantes e dotados do sentido do "pitoresco", aproximação entre o seu autor e o poeta da Eneida é recorrente; busca-se, então, mostrar quanto o primeiro deve ao segundo, pontuando-se versos virgilianos que teriam servido a Lucano como fonte de expressão ou de idéias. Nas presentes considerações, procura-se demonstrar que não é servil o comportamento de Lucano; sem negar a extraordinária ascendência épica de Virgílio, intenta-se firmar Lucano como autor capaz de extrair um efeito diferenciado dos versos virgilianos dos quais se serve, fazendo uso inteligente da intertextualidade para sobrelevar seus objetivos e garantir a efetividade estética ao poema Bellum Civile.
O papel dos tiranicidas na constituição da identidade democrática em Atenas
Authors: Condilo Camila da Silva
Published: December 2023

Este artigo visa explorar o problema da formação de identidades políticas à luz da relação com a vida política da Atenas Clássica. Para tanto, foi estudada a tradição oral sobre os tiranicidas atenienses registrada nos textos de Heródoto, Tucídides e Aristóteles.
O discurso sob outros discursos: Salústio e a disputa entre grupos políticos no final da República
Authors: Fernandes Marcelo Vieira
Published: December 2023

Salústio se empenha na caracterização moral da nobilitas, ao menos daquela cujos vícios teriam conduzido à exacerbação das desigualdades e finalmente à guerra civil. Entretanto, o pareamento entre César e Catão, mediante os respectivos discursos, estando o último a censurar o comportamento da pars mesma de que ele próprio é defensor, bem como o retrato de Mário, cujas qualidades iniciais teriam degenerado no vício da ambitio, apontam para um plano de construção da Conjuração de Catilina e da Guerra de Jugurta que, se pode ser acusado de parcialidade política, parece ter como pretensão uma espécie de “neutralidade” filosófica, que buscaria evidenciar os vícios de uns e outros, e assim compor, no espaço das letras, um quadro complexo: o retrato, para Salústio, de seu ideal político irrealizado. Procurarei mostrar como o discurso próprio desse ideal, presente nos prefácios àquelas monografias, se deixa entrever também na reconstrução retórica dos discursos daquelas personagens.
Editorial
Authors: Martins Paulo , Prado João Batista de Toledo , Ribeiro Tatiana Oliveira
Published: December 2023

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Apresentação
Authors: Lima Alceu Dias , Silva Regina Célia Bicalho Prates e , Carvalho Sílvia Maria Schmuziger , Ragazzini Tirza , Cardoso Zélia de Almeida
Published: December 2023

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The threat to clean environment: The carbon footprint of forest camping activities as social tourism in Turkey and Lithuania
Authors: Atalay Ahmet , Perkumienė Dalia , Švagždiene Biruta , Aleinikovas Marius , Škėma Mindaugas
Published: December 2023

The most important factor in the emergence and growth of climate change and environmental problems is people’s transportation preferences. In this context, the aim of the research is to calculate the carbon footprint of individuals participating in camping activities in Turkey and Lithuania in the summer of 2022. In the study, the emission factors of preferred airplanes, urban buses and personal vehicles were used in the carbon footprint calculation process. In this research, the distance travelled by the individuals participating in the camping activities in Turkey and Lithuania in the summer period of 2022 with the travel vehicles they prefer for transportation was used. The total distance travelled in a summer period is 330,015 km in Turkey, the total distance travelled in a summer period is 132,331 km in Lithuania. In the analysis of the data set obtained through the official institutions from both countries and in the calculation of the carbon footprint, the emission factors of the preferred aircraft, urban buses and personal vehicles were used. According to the analysis, the total carbon footprint calculated for both countries is 73.54 tons. While the carbon footprint calculated for Turkey is 46.51 tons; for Lithuania, it is 23.83 tons. Depending on the travels made in Turkey, the average per capita carbon footprint is 10.70 kg, while in Lithuania it is 4.38 kg. The average per capita carbon footprint calculated for both countries is 15.08 kg. Regardless of their travel preference, the travels of people in both countries cause carbon footprints and contribute to the global climate change problem. It is seen that airway vehicles are used in Turkey due to the distances being much longer and this situation enlarges the carbon footprint. In Lithuania, the prominent carbon source is individual vehicle use.
Collaboration and leadership for effective disaster governance: Evidence from Cianjur earthquake, West Java, Indonesia
Authors: Darmanto Darmanto
Published: December 2023

This article aims to elucidate governance primarily from the perspective of collaboration and leadership in managing disasters. This article studies the case of Indonesia, a country with frequent and complex nature of disasters, located on the Pacific Ring of Fire to analyze its disaster management system and draw out implications from its experience. The method used is a qualitative comprehensive and systematic review from national and international earthquake occurrences. The finding is that Indonesia is simultaneously carrying out disaster management which is not contradictory but complementary. The importance of collaboration is imposed and recommendations are offered on rectifying collaborative activities’ value. Modern leadership strategies suggest that acquire their power from effective strategies and transformational power rather than standard operating procedures. This paper provides lessons on how to organize earthquake management through aspects of collaboration and leadership effectively. The author suggests optimizing the potential of the community by providing special assistance to increase disaster management efforts.
Optimal model for selection of material with low emission of indoor air pollutants
Authors: Kwon Seong-Min , Kim Byung-Soo
Published: December 2023

When the amount of data to be reviewed is large and the properties of the material are complex, it is difficult to make a rational decision in selecting the optimal material. Therefore, in this study, we tried to develop an optimization model that comprehensively considers user requirements, performance and economic feasibility of materials for selecting materials with low emission of indoor air pollutants. To this end, a database was constructed considering the economic feasibility by applying the concept of LCC (Life Cycle Cost) and presenting price range options that can be selected by the user. A genetic algorithm was used to construct a model to derive a material plan that could achieve the target score while satisfying economic feasibility and user requirements. As a result of model verification and verification cases, materials were selected only within the range according to the price range option and user selection criteria for each space and part. The efficiency and effectiveness of this model were confirmed. In this study, reliable results can be presented by presenting a model that can automatically select an algorithm for the optimal preferred material selection problem that is difficult for humans to solve cognitively with database construction and user selection information. Since it can be used in other fields, scalability and usability of this model are expected. In addition, it helps user to reduce the time of the material selection process and the price of materials is also considered, so that it is expected to help improve the economic feasibility of overall construction.
Leveraging computer-assisted audit tools for corporate sustainability: Evidence from Ethiopia
Authors: Wassie Fekadu Agmas
Published: December 2023

The existing ample literature studied the factors for adopting computer-assisted audit techniques (CAATs) by internal and external auditors, frequently ignoring their impact on the quality of audits and companies’ efficiency. This study delivers new evidence on the kinds of CAATs utilized by internal auditors, examines their adoption impact on corporate sustainability, and studies the moderating impact of company characteristics. This study used data from internal auditors in Ethiopia gathered using a survey, and the study hypotheses were tested using the partial least squares-structural equation modeling (PLS-SEM) technique. The study found a moderate utilization of CAATs by internal auditors in executing their activities. The result also revealed a highly positive impact of internal auditors’ CAAT utilization on fraud discovery in the acquisition process. The study found that the intensity of this relationship is impacted by the companies’ characteristics of management commitment. However, the size and type of the company are not impacting it. This study finding complements prior studies and helps practitioners make decisions that can improve CAAT utilization in internal audit functions for a high level of companies’ sustainability.
Management accounting system as mediator on sustainability performance
Authors: Werastuti Desak Nyoman , Sitawati Riana , Rinandiyana Lucky Radi , Badriatin Tine
Published: December 2023

This paper aims to investigate the factors of competitive success and examine the relationship between Strategic Management Accounting, management accounting information systems and sustainability performance. This research was conducted with a quantitative approach. The survey involved 125 managers of 4- and 5-star hotels in Bali, Indonesia, a research sample of 154 managers was determined to be given a research questionnaire. Analysis of research data was carried out through Structural Equation Modeling. The results showed that strategic management accounting and Information Management Accounting System had a positive effect on sustainability performance. MAS information also mediates the relationship between strategic management accounting and sustainability performance which can involve a variety of factors. This study only focuses on competitive strategy and MAS information variables, so further research is needed on the sustainability performance of the hospitality industry. The positive relationship between strategic management accounting and social and environmental performance supports the argument that hotels use socio-environmental aspects for their strategic management accounting. Hotel managers also need government regulations and information related to social and environmental issues such as the Indonesian occupational health and safety management system and the Indonesia Green Hotel Award.
Enhancing Patient Safety Through Leadership: A Comprehensive Literature Review on the Role of Head Nurses in Hospital Settings
Authors: Linnik Ljudmila , Sepp Jaana , Reinhold Karin
Published: December 2023

The aim of the study is to analyse the process through which nursing management affects patient outcomes to promote a culture of safety. Patient safety has moral, ethical, and economic implications. Medical errors significantly increase healthcare costs, prolong hospital stays and lead to the need for additional treatment, accompanied by legal expenses that can impact the reputation of a healthcare institution. Therefore, patient safety in healthcare is important, and the role of management in shaping this culture and practice is central. To achieve this goal, a systematic review is conducted, including searches in electronic databases such as PubMed, Scopus, Web of Science, EBSCO Discovery, MedLine, EBSCO host, and ScienceDirect, from the year 2013 onwards. Additionally, manual searches are carried out in leading journals in the field. After evaluating and analysing the articles, 28 remain, focusing on four main themes: nurse engagement and patient safety climate, the impact of management style on patient outcomes, challenges in implementing safety culture in practice, and innovative practices and general management skills. Based on the results, it can be argued that a transformative nursing leadership style plays a significant role in reducing unfavourable patient outcomes. These findings emphasize the involvement of nursing leaders and the associated challenges in addition to proposing strategies for enhancing patient safety and shaping the future of nursing management in the healthcare system.
Cognitive frailty in the elderly: a concept analysis
Authors: Hu Yi-Yin , Rosa Ronnell D. Dela
Published: December 2023

Frailty is a recession of age-related reserves caused by a variety of causes and is becoming the most important clinical syndrome that affects the health of the elderly. In the elderly, frailty and cognitive dysfunction often exist, and some people have proposed cognitive frailty. Cognitive frailty is an elderly syndrome that increases the risk of dementia, in the same time, and can independently predict the adverse health outcomes of the patient and affect the quality of the patient’s survival. This paper, under the guidance of Walker and Avant method, provides theoretical basis for early recognition and intervention of cognitive weakness in the elderly.
Synthesis and solubility of hopeite Zn3(PO4)2·4H2O
Authors: Bajda Tomasz , Rogowska Melania , Pawłowska Agnieszka
Published: December 2023

Minerals from the phosphate groups are used in environmental engineering as thermodynamically stable vehicles for heavy metals such as zinc. The hopeite Zn3(PO4)2·4H2O was synthesized and characterized by X-ray diffraction and scanning electron microscopy. The solubility of the hopeite was measured at 25°C. The average solubility product, log Ksp, for the reaction Zn3(PO4)2·4H2O ⇔ 3Zn2+ + 2PO4
3- + 4H2O at 25°C is –35.72 ± 0.03. The free energy of formation, ΔG°f,298, calculated from this measured solubility product is –3597.4 ± 1.0 kJ mol-1. The immobilization of zinc in the hopeite structure offers the possibility of developing an effective method for removing Zn from wastewater, water and soils.
Student engagement and academic performance in pandemic-driven online teaching: An exploratory and machine learning approach
Authors: Campeanu Emilia Mioara , Boitan Iustina Alina , Anghel Dan Gabriel
Published: December 2023

Fostering student engagement to acquire knowledge and achieve academic performance requires understanding how students engage in learning and its influence on academic achievement. This provides valuable insights that help improve learning experiences and outcomes. The paper relies on a mixed methods approach by expanding the traditional dimensions of student engagement and by employing a machine learning framework to identify which specific dimension of student engagement exhibits the main impact on student academic achievement. A questionnaire-based survey is conducted for the period 2020-2021 among a cohort of Romanian students. The outcomes of this preliminary exploratory analysis are further embedded into a machine learning framework by performing a LASSO regression. The findings reveal that the most relevant dimensions of student engagement, during remote education, that contribute the most to outcomes were represented by the behavioural, social, cognitive, and emotional engagement dimensions. Furthermore, the switch to online education appeared to have inverted the positive relationship between social and cognitive engagement and academic achievement. Despite the inherent challenges, the student’s interest in class participation and homework completion was stimulated, and they managed to adapt without difficulty to study independently.
Investigation of the Dynamics of Salmonellosis in the Republic of North Macedonia
Authors: Memedi Besim , Tanevski Vlatko
Published: December 2023

The main goals of this research are to determine the developmental tendency of salmonellosis in the Republic of North Macedonia and to determine the index of dynamics and the rate of decline/increase of salmonellosis in the Republic of North Macedonia. The research covers the period from 01.01.2012 until 31.12.2022. The data used to implement this study were obtained from the Institute of Public Health of the Republic of North Macedonia. The research included 2711 subjects who were sick with salmonellosis from 2012 to 2022. The following statistical methods of work are used: linear trend, dynamic index with a constant base, dynamic index with a variable base (chain index), rate of decline, and rate of increase. The results of the study suggest that in the period 2012-2022, the highest number of patients (n=373) and the highest incidence (18/100000) of salmonellosis were registered in 2018, and the lowest in 2020 (n=119, I=5.8/100000). From the linear trend values, it can be concluded that salmonellosis in the Republic of North Macedonia shows a decreasing tendency. The biggest increase in salmonellosis in the Republic of North Macedonia was in 2015 by 71% compared to 2014. The biggest decrease in salmonellosis in the Republic of North Macedonia was in 2020 by 48% compared to 2019. From the study, it can be concluded that food operators and manufacturers are observing the procedures of the HACCP control system for food safety, leading to a possible decrease in salmonellosis.
The Incidence of Lymphovascular and Perineural Invasion and their Impact on Survival in Patients with Rectal Cancer
Authors: Misimi Shqipe , Cako Dajana , Demirel Ali İlbey , Nikolovski Andrej , Ulusoy Cemal , Duman Mehmet Güray
Published: December 2023

Aim: Lymphovascular Invasion (LVI) and Perineural Invasion (PNI) represent undesirable but still realistic pathological features of rectal cancer, associated with poor prognosis and worse survival. The aim of this study is to assess the incidence of LVI and PNI in patients treated for rectal cancer and the impact of LVI and PNI on patient survival.

Material and Methods: This retrospective single center observational study, conducted in the period of 2016-2019, includes patients with rectal cancer treated with/without long-course neoadjuvant chemoradiotherapy (nCRT). Data collection encompassed demographics, tumor characteristics, type of surgery (abdominal perineal rectal resection - APR and low anterior rectal resection - LAR), and LVI/PNI presence. Survival during follow-up was estimated and compared for patients with/without LVI and PNI involvement.

Results: A total number of 234 patients (77 females and 157 males) with mean age of 61.3 enrolled in the study. Neoadjuvant CRT was conducted in 170 patients. APR procedure was performed in 67 of them and LAR in 167. LVI presence was noted in 55 (24.4%) and PNI in 77 (34.2%) patients. Mean survival during follow-up was 42.07 months. The use of nCRT influenced on survival (p < 0.033). Patients treated with LAR had better survival outcomes (p = 0.001). Presence of LVI and PNI was associated with a worse prognosis (p < 0.001).

Conclusion: PNI was more frequent than the LVI in this study. Patients with nCRT conduction had better overall survival. LVI and PNI presence was associated with poor prognosis in terms of overall survival in patients with rectal cancer.
Emphysematous Calculous Cholecystitis Diagnosed with Abdominal CT in a Diabetic Female Patient – Case Report
Authors: Misimi Shqipe , Aliu Ilir , Kanevce Petar , Nikolovski Andrej
Published: December 2023

Emphysematous cholecystitis is reported to have a low incidence of less than 1% in all cases of acute cholecystitis and yet a high mortality rate of up to 15%. It is most commonly seen in male diabetic patients with advanced age. The diagnosis is established with the presence of gas in the gallbladder lumen and/or within its wall which can be seen on plain abdominal radiography, abdominal ultrasound, and abdominal computerized tomography. The clinical presentation refers to one of acute cholecystitis, but the treatment requires prompt cholecystectomy since the patient’s condition can deteriorate due to the possibility of gallbladder perforation. We present a case of a 71-year-old female diabetic patient with calculous emphysematous cholecystitis treated with emergency open cholecystectomy.
Realizing a Green Hydrogen Economy: An Examination of Influencing Factors
Authors: Safronova Alina , Barisa Aiga
Published: December 2023

The significance of hydrogen in the context of the ongoing energy transition is growing noticeably. This study presents a review of the literature on the factors that influence the development of a hydrogen economy. Based on an analysis of relevant studies, we suggest the factors that drive the growth of a hydrogen economy. Unlike traditional sector-based analyses, our approach is a comprehensive examination of the hydrogen value chain, incorporating stakeholder perspectives that are frequently overlooked in technical and economic research. Drawing on recent International Energy Agency assessments and extensive desk research, we identify barriers and propose solutions critical to the successful implementation of a hydrogen economy. The study then introduces a conceptual causal loop diagram and an illustrative framework that visually depict the intricate interconnections between stakeholders and influencing factors. The findings emphasize the importance of increased political support, particularly for addressing concerns about technological immaturity and economic viability, and strategic collaborations between private companies, academia, and government institutions. The proposed solutions, which include research and development support and the formulation of national hydrogen strategies, highlight the critical role of a well-defined policy framework in advancing the green hydrogen economy. This study significantly enriches both academic understanding and practical decision-making by providing valuable insights for long-term hydrogen development.
The problem of the diagnosis of acute kidney injury in children operated under the conditions of artificial circulation
Authors: Balakhnin D. G. , Chermnykh I. I. , Ivkin A. A. , Grigoryev E. V. , Shukevich D. L.
Published: December 2023

Acute kidney injury (AKI) associated with cardiac surgery in children is one of the most frequent complications of the postoperative period appearing due to various perioperative factors. Generally accepted criteria for the diagnosis of AKI, on the one hand, may underestimate the frequency of development of this complication, on the other hand, require verification for use in the pediatric population. The application of kidney injury markers in pediatric practice is associated with a number of difficulties. For example, the high variability of the concentration of markers depending on age complicates the interpretation of the result, and maternal molecules can circulate in the blood of newborns. At the same time, in the cardiac surgery practice, the greatest impact of the measurement of kidney injury markers in children has been noted, which allows significantly accelerate the diagnosis of this complication and the starting of its therapy.
Assessment of the prognosis of the outcome of severe community-acquired pneumonia caused by Klebsiella pneumoniae
Authors: Sakharov V. I. , Mironov P. I. , Tсandekov A. A. , Rudnov V. A.
Published: December 2023

Introduction. The problem of an adequate assessment of the prognosis of the outcome of severe community-acquired pneumonia (CAP) is particularly difficult if it is caused by an unusual pathogen for it, in particular Klebsiella pneumoniae.

The objective was to develop the approach for predicting the survival of a heterogeneous population of patients with CAP caused by Klebsiella pneumoniae using statistical approaches based on artificial neural networks.

Materials and methods. The design is a retrospective, multicenter, controlled, non-randomized study. Inclusion criteria: clinical, laboratory and radiological diagnosis of CAP associated with Klebsiella pneumoniae with a SOFA score of 2 or more points. The development included 100 patients. 50 died. The prognostic significance of the SOFA, APACHE II, PSI/PORT, Glasgow and Charlson comorbidity index, procalciotonin, C-reactive protein scales was evaluated. The data obtained were evaluated in the StatPlus 7 and Pycharm GPT programs.

Results. None of the stated scales has shown its significance. There were no statistically significant differences between the surviving and deceased patients in terms of the level of biomarkers studied. In this regard, we have compiled a logistic regression equation for assessing the prognosis based on a combination of the SOFA score, the Charlson index and the procalcitonin level.

Conclusion. In assessing the prognosis of outcome in patients with CAP caused by Klebsiella pneumoniae, it is advisable to use a combination of data from the SOFA score, Charlson comorbidity index and procalciotonin levels. Threshold critical values are SOFA score of more than 4 points, Charlson comorbidity index of more than 7 points, procalciotonin level of more than 2 ng/ml.
The influence of systolic arterial pressure in the first day after systemic thrombolysis on ischemic stroke outcomes and complication rate: a retrospective single-center study
Authors: Avidzba A. R. , Saskin V. A. , Kudryavtsev A. V. , Kirov M. Yu.
Published: December 2023

Introduction. Reperfusion (both pharmacological and interventional) is the cornerstone of acute ischemic stroke (AIS) management. Currently, there are only limited data in the scientific literature regarding the influence of systemic hemodynamic parameters on the recanalization status and complications of AIS.

The objective of our study was to assess the relationship between the systemic hemodynamic parameters in the early postreperfusion period and the outcomes of AIS.

Materials and methods. For retrospective analysis, data of 292 patients who received intravenous thrombolysis (IVT) at the Arkhangelsk Regional Stroke Center between 2010 and 2021 were collected. The main endpoints were functional outcome, mortality, and symptomatic intracranial hemorrhage (sICH). The success of reperfusion was defined as the neurological improvement by 4 or more points of the NIHSS score within the first 24 hours after the start of IVT.

Results. The relationship between mean systolic blood pressure (SBP) during the first 24 hours of IVT and functional recovery was obtained: B = 0.016 (β = 0.096) [95 % CI 0.000 – 0.031] (р = 0.49). The relationship between maximal SBP during the first day of IVT and functional recovery was also determined: B = 0.009 (β = 0.102) [95 % CI 0.001 – 0.018] (p = 0.037). The sICH occurred in nine cases, all of them were in the group without achieving successful reperfusion.

Conclusion. The baseline levels of SBP ≥ 160 mm Hg at hospital admission in patients with AIS followed by IVT are accompanied by worse functional outcome and greater odds of death. The neurological improvement with significant decline in the NIHSS score during the first 24 hours after IVT is associated with a decreased risk of sICH.
Experience in applying the strategy of simultaneous selective perfusion of the brain, heart and lower body in reconstruction of the aortic arch in infants
Authors: Bazylev V. V. , Shcheglova K. T. , Artemyev N. N. , Magilevets A. I. , Shikhranov A. A. , Kokashkin M. V. , Makogonchuk N. E. , Bofanov D. A.
Published: December 2023

Relevance. The choice of perfusion strategy is vital for the protection of internal organs during surgery. In several studies of recent years, as well as by us, a strategy of sustained total all region (STAR) perfusion (selective brain, heart and lower body perfusion) has been proposed, allowing to avoid ischemic and reperfusion injuries of internal organs.

The objective was to evaluate the benefits of STAR perfusion during reconstruction of the aortic arch in children.

Materials and methods. The prospective study included 15 patients who underwent aortic arch reconstruction using a strategy of simultaneous selective brain, heart and lower body perfusion (STAR perfusion) in the period from June 2022 to May 2023. The average age at the time of surgery was 1.3 months (95 % CI (confidence interval) 6.0–16.0), the average body weight was 3.4 kg (95 % CI 2.7–4.1).

Results. Сhanges of the tissue oximetry index, measured at two points, did not fall below reference ranges at any stage of the operation. The greatest mean value of lactate concentration during the operation was 2.8 ± 1.0 mmol/l, recovery of the indicator was noted after 6 hours – 1.9 ± 0.9 mmol/l. Kidney function evaluation – the rate of diuresis and creatinine levels did not exceed reference levels. The average treatment time in the intensive care unit was 7.7 ± 4.3 days (95 % CI 4.5 10.9), in the hospital – 15.4 ± 5.8 days (95 % CI 11.4–19.4). There were no deaths among those operated using the new perfusion strategy.

Conclusion. The use of the strategy of Sustained Total All Region (STAR) perfusion in case of reconstruction of the aortic arch in newborn, infants and young children is safe and advanced, since it avoids ischemia of internal organs and reduces the risk of post-ischemic complications.
The attitude of the resuscitation team members and the patient’s companions toward the presence of the patient’s first-degree relatives during cardiopulmonary resuscitation in the emergency departments
Authors: Isfahani M. N. , Borojeni F. B. , Pakravan F. , Masoumi B.
Published: December 2023

The presence of the patient’s family at their bedside during cardiopulmonary resuscitation (CPR) is one of the challenging issues that has been frequently taken into consideration. Considering the importance of this topic. The objective of the present study was conducted to determine the attitude of the CPR team members and the patient’s companions toward the presence of the patient’s first-degree relatives during CPR.

Materials and methods. The descriptive-analytical cross-sectional study was conducted on 100 CPR team members of two University Hospitals and 120 near relatives of patients undergoing CPR in 2021. The data were collected by the researcher-made questionnaire and depression, anxiety, stress scale (DASS) during CPR. The collected data were analyzed by SPSS (version 22) statistical software.

Results. From the perspective of both the CPR team members and the patient’s companions, the highest mean response was related to the fact that it would be better for the patient to agree on the presence or absence of their family before hospitalization and whether they have favorable conditions. The attitude toward the presence of the patient’s family during CPR was statistically significantly associated with the companions’ gender (p < 0.05) and with the experience of work and participation in CPR of the CPR team members (p < 0.05).

Conclusion. Taking into account the different opinions of the CPR team members and the patient’s relatives about the presence of family during resuscitation, additional studies with a large sample size should be carried out.
Prediction of adverse clinical outcomes in pregnant women with severe and extremely severe forms of coronavirus infection
Authors: Shchegolev A. V. , Lakhin R. E. , Nikulin A. A. , Meshchaninova S. G. , Bezhenar V. F.
Published: December 2023

The objective was to identify prognostic criteria for unfavorable outcome in pregnant women with severe and extremely severe forms of COVID-19 and to build a model for predicting clinical outcome.

Materials and methods. The cohort single-center retrospective study was conducted, which included 83 patients who were treated in the intensive care unit (ICU) from January 1 to December 31, 2021. Of these, 13 patients had an unfavorable outcome – death, and 70 patients with a successful outcome – recovery. The differences in the main clinical and laboratory parameters of patients of both groups during hospitalization in the ICU and on the 3rd day of treatment (Δ – delta) were analyzed.

Results. The Cox regression analysis identified laboratory parameters, the difference of which (Δ) on admission to the ICU and on the 3rd day of treatment is associated with the development of the unfavorable outcome (death). These indicators were used as variables in a linear regression equation. The equation for calculating the prognostic index met the criteria of a statistically significant model (sensitivity 84.6 %, specificity 85.7 %, area under the operating characteristic curve (AUROC – Area Under Receiver Operator Curve) – 0.959 (95 % confidence interval [95 % CI] 0.918 – 1.0).

Conclusion. The calculation of the prognostic index can be an additional clinical tool that allows one to predict the development of an unfavorable outcome, concentrate the work of a multidisciplinary team, attract additional reserves of a medical institution and/or evacuate such patients to high-level hospitals.