bluuebunny/crossref_metadata_2025 huggingface dataset:
Harnessing Piezoelectric poly-L-lactic acid (PLLA) for Enhanced Sensing for Aortic Annuloplasty
Authors: Merhi Youssif , Montero Karem Lozano , Johansen Peter , Mäntysalo Matti , AGARWALA SHWETA
Published: January 2025

Advancements in biomedical technologies increasingly demand biocompatible and biodegradable materials capable of integrating with the body for real-time monitoring of physiological processes. Aortic annuloplasty, a procedure to stabilize the aortic root and restore valve function in cases of regurgitation and root dilation, highlights the need for such innovations. Current methods rely on postoperative imaging, which challenges the mapping of the dynamic forces acting on the aortic root and annuloplasty ring during the cardiac cycle. To address this, we assessed the piezoelectric performance of poly-L-lactic acid (PLLA) films, fabricated using solvent casting and processed using uniaxial stretching and thermal annealing, through tapping, straining, and force- and vibration-sweep tests. These tests were conducted to characterize the electrical response of PLLA films under varying mechanical stimuli and evaluate their potential for biomedical sensing. We develop a simple prototype ring-like device to simulate real-world conditions to ascertain its suitability for integration into implantable sensors for continuous, real-time monitoring using a novel in vitro setup for biosignal monitoring of aortic annuloplasty. The device demonstrated stable and periodic voltage outputs correlated with applied pressures, ranging from -0.5 to 0.5 V at 92/51 mmHg to -1.1 to 1.3 V at 164/114 mmHg. These results establish the feasibility of PLLA-based sensors for real-time biomechanical feedback during and after cardiovascular surgeries, paving the way for next-generation monitoring technologies that enhance patient outcomes.
Geographical and Economic Aspects of Renewable Energy Development in Ukraine amid Military Threats
Authors: Artemenko Y. , Zhuvahina I. , Shcherbinin D. , Yermolenko O. , Ishchuk O.
Published: January 2025

Purpose: The article describes the main renewable energy sources and their geographical use, which is dictated by energy policy.
Design/Methodology/Approach: The research strategy combines qualitative and quantitative methods to analyse Ukraine’s renewable energy sector during wartime disruptions and post-war recovery. A combination of theoretical and empirical methods, such as analysis, synthesis, theoretical modelling, and generalising materials from the scientific literature, must be used to solve the task set. The article analysed 38 sources published between 2012 and 2024, which were searched in 16 databases and search engines: CINAHL, ClinicalTrials.gov, Cochrane Library, EbscoHost, Embase, ERIC, Google Scholar, LILACS, ProQuest, PsycINFO, PubMed, ScienceDirect, Scopus, SportDiscus, TRID and Web of Science.
Finding: The main challenges for developing the energy sector in Ukraine include growing demand for energy resources against the backdrop of declining reserves of traditional energy resources, rising prices, and growing dependence on energy imports.
Research Limitation: A major limitation is the focus on Ukraine’s unique geopolitical and economic context, so the results cannot be directly generalised to countries without similar circumstances, such as ongoing conflicts or dependence on external energy resources.
Practical Implication: This study allowed us to identify the main factors influencing the solution of energy supply and energy consumption problems as conditions for sustainable and proportional development of regional economies.
Social Implication: The study offers relevant solutions to meet society's needs, including recommendations on energy security, job creation, and environmental preservation. This would improve citizens' quality of life and ensure long-term energy stability.
Originality/ Value: The study is novel because it contributes to the field of renewable energy. It addresses the intersection of energy security and economic efficiency in times of crisis. It offers a new framework for sustainable energy policy in the regions of Ukraine during the war.
The Role of Design in Reviving Architectural Styles and Protecting Cultural Heritage
Authors: Kosmii M. , Zhumbei S. , Luzhnyii S. , Dovhaliuk B. , Berezovetska I.
Published: January 2025

Purpose: The study examines architectural styles' impact on preserving cultural heritage.
Design/Methodology/Approach: The research is based on a qualitative paradigm, using content analysis as a basic tool. The examples included eight sites: the Louvre, the Central Library of Liverpool, the Basilica of Santa Maria Maggiore, the Monastery of Saint Francis, the German Military History Museum, the Antwerp Port Authority Building, and the Royal Ontario Museum. The findings obtained in the content analysis were then processed using the synthesis, comparison, and generalisation methods.
Research Limitation: The research's limitation is the frame of Western cultural heritage, which does not cover regions of the Middle East and Asia.
Finding: The study identified the adaptive reuse of architectural styles. Design in preserving cultural heritage was recognised as the main challenge of urbanisation in the 21st century.
Social Implication: The findings contribute to strengthening the cultural identity of nations, as well as to sustainable urbanism
Practical Implication: The findings allow architects to broaden the arsenal of solutions applied both for preserving cultural heritage and designing city plans
Originality/ Value: The study's relevance concerns preserving cultural monuments currently receiving considerable attention.
Influencia de la familia y el factor socioemocional en el aprendizaje de los alumnos de educación básica regular de Piura en la actualidad
Authors: Ramírez Benites Santiago Ronald
Published: January 2025

El objetivo fue determinar la influencia de la familia y los factores socioemocionales en el rendimiento académico de los alumnos de educación básica regular en Piura, dentro del marco del enfoque por competencias. Se argumenta que la familia es el primer agente socializador y educativo, donde la calidad de las interacciones familiares, como la comunicación y el apoyo emocional, afectan significativamente el desarrollo de competencias educativas; ya que un ambiente familiar positivo se correlaciona con un mejor rendimiento académico. En el contexto peruano, el involucramiento parental no solo mejora las calificaciones, sino también la motivación y la autoestima de los estudiantes. El estudio, de carácter mixto, incluye encuestas y entrevistas semiestructuradas a 200 estudiantes, 100 padres y 50 docentes, seleccionados mediante muestreo aleatorio estratificado. Se emplearon instrumentos para medir el apoyo familiar y el bienestar socioemocional, revelando que el 78% de los padres se involucran activamente en la educación de sus hijos, lo que se correlaciona positivamente con el rendimiento académico (r = 0.65, p < 0.01). Asimismo, se observó que los estudiantes con un alto nivel de bienestar socioemocional obtienen mejores calificaciones. Las dinámicas familiares, especialmente la estructura familiar (nuclear, monoparental y extendida), juegan un papel crucial en el apoyo educativo, con las familias nucleares mostrando el mayor nivel de efectividad. Los hallazgos subrayan la necesidad de implementar programas que fortalezcan la colaboración entre familias y escuelas, que promuevan el bienestar emocional y el aprendizaje. Este enfoque integral no solo beneficiará el rendimiento académico, sino que también contribuirá al desarrollo de habilidades socioemocionales esenciales en los estudiantes. En conclusión, la familia y los factores socioemocionales son determinantes clave en el aprendizaje, y es fundamental que las políticas educativas se adapten para promover una mayor interacción entre el hogar y la escuela.
Dashboards en SAP Business Intelligence para la Toma de Decisiones en la Industria Automotriz: Una Revisión Sistemática
Authors: Zegarra Chamorro Luz Giannina , Ormeño Audante Ayrton  Gustavo
Published: January 2025

Decision-making allows organizations to be more agile and efficient in such a competitive market, where data is considered the primary asset for generating valuable information. This article presents a systematic review using the PRISMA methodology to analyze the use of dashboards in SAP Business Intelligence (SAP BI) for decision-making in the automotive industry. An extensive search was conducted in the Scopus database, which, after applying various inclusion and exclusion criteria, resulted in a total of 21 articles for the corresponding analysis, based on the research questions posed. The main findings indicate that dashboards facilitate quick and efficient access to critical information, improving the alignment between strategic objectives and daily operations within organizations. However, challenges in their implementation were also identified, such as the need for proper training and the variability in their effectiveness depending on the organizational context. The conclusions emphasize the importance of integrating dashboards into BI systems to optimize decision-making in the automotive industry, as well as the need to address the challenges associated with managing these tools. Future research suggests expanding the scope to other sectors and examining the impact of organizational culture on the adoption of these tools
UNDERSTANDING ECONOMIC CRIMES: UNVEILING THE WORLD OF WHITE-COLLAR OFFENSES
Authors: Hamja Hamja
Published: January 2025

White-collar crime encompasses a broad spectrum of illicit activities conducted within the boundaries of a legitimate profession or financial system. The purpose of this study is to critically examine and analyze the ethical dimensions of economic offenses, seeking to foster a deeper understanding of the moral responsibilities inherent in positions of power and influence. Normative and empirical-juridical research methods are used to comprehensively investigate the phenomenon of white-collar crime. The results of this study are that white-collar crimes are usually committed by individuals who hold positions of authority, respect, and expertise in society. High-ranking officials are entrusted with significant responsibilities by the public to lead and fulfill their duties in an ethical and legitimate manner. officials abuse their power and privileges, acting in ways that undermine public trust and negatively impact the welfare of the state. In terms of criminal law enforcement, white-collar crime often manifests as malfeasance committed by individuals within the government bureaucracy or in collaboration with others. The consequences of such actions, especially in cases of corruption, can cause serious losses to the state's finances and are considered violations of the law, which are punishable under the provisions of the law governing the offense or crime.
Achieving Sustainability and Improving Global Business Performance Through Business Ethics and Corporate Social Responsibility
Authors: Rozalina Novianty , Ellitan Lena
Published: January 2025

Abstract
The idea of ​​sustainable business practices and CSR has evolved over the years from simply a philanthropic endeavor to an integral component of corporate strategy. On the other hand, CSR covers a wider range of initiatives aimed at making a positive contribution to society, covering areas such as community development, employee welfare and ethical governance. This article aims to: (a). Identify relevant studies regarding the relationship between business ethics and Corporate Social Responsibility in improving global business performance and achieving sustainability. (b). Evaluate key findings from existing literature on the linkages between these practices in improving global business performance and achieving sustainability. (c). Identify research gaps that still need to be filled and recommend future research directions in this area. has an important role in international business activities. These three interrelated factors in international business play a beneficial role in ensuring that companies operate responsibly, sustainably, and provide benefits to communities and the environment around the world. Business ethics ensures that companies operate responsibly and with integrity in a complex and diverse international environment, taking into account the varying cultures, values ​​and laws of each country and region. Meanwhile, sustainable business practices are becoming increasingly important in international business due to increasing environmental and social pressures, as well as demands from consumers and governments to pay attention to the social and environmental impacts of business.
Influence of Bank Type on the Relationship Between Corporate Governance and Market Performance: Insights from Emerging Countries
Authors: Abid Sheikh Khurram , Naseem Muhammad Akram , Zain ul Abidin Muhammad
Published: January 2025

Purpose: The market performance of banks is highly impacted by corporate governance and type of bank. This study aims to empirically examine the influential impact of bank type on the relationship between corporate governance and bank’s market performance.
Design/Methodology/Approach: The study employed deductive approach and used a sample of 456 bank-year observation of 38 banks selected from emerging economies over the period from 2011 to 2023. The GMM - Generalized Method of Moments estimation was used to test the research hypothesis and to control the endogeneity issues in panel data.
Findings: The study reported a positive and significant effects of board size and board independence on the market performance of the banks such as Tobin’s Q by considering three controlling factors namely, leverage, liquidly and asset quality. Further, bank type has significant moderating effect on the link between corporate governance measures and bank’s market performance.
Implications/Originality/Value: This study contributed to the broader understanding of corporate governance by highlighting the role of bank type in shaping the effectiveness of governance mechanisms. Moreover, this study attempts to connect the empirical findings with governance theories for highlighting the role of governance in measuring the performance of banking sector of emerging economies that will facilitate decision makers and bank authorities to adopt such corporate governance mechanism that will enhance bank’s market performance.
Advancements and Challenges in Additive Manufacturing: Future Directions and Implications for Sustainable Engineering
Authors: Mohammed Raffi , Shaik Abdul Saddique , Mohammed Subhani , Bunga Kiran Kumar , Aggala Chiranjeevi , Babu Bairysetti Prasad , Badruddin Irfan Anjum
Published: January 2025

This study explores the recent advancements in additive manufacturing (AM) and its significant effects on various industries such as aerospace, automotive, medical, and casting. The research investigates how AM has the potential to enhance design flexibility, reduce weight, and optimize material performance through developments like adaptive algorithms, topology-based process planning, and multi-objective optimization techniques. These advancements have resulted in near-net-shape casting, improved surface finishes, and enhanced structural integrity. However, the widespread adoption of AM in the commercial sector faces challenges such as high costs, limited material compatibility, and inconsistent build quality. This paper assesses these limitations and suggests solutions such as enhanced design algorithms, AI-driven process monitoring, and the creation of sustainable materials to address them. By overcoming these barriers, AM can smoothly integrate into industrial environments and revolutionize manufacturing processes. The study emphasizes the importance of further exploration of AM's potential to drive innovation, sustainability, and productivity across different sectors.
Synthesis and structural characterization of a novel ternary composite, containing xLiFeO2, yLi3V2 (PO4)3, and (1-x-y) LiCoO2, composites for Lithium Ion Batteries (LIBs)
Authors: Monajjemi M. , Mollaamin F.
Published: January 2025

The objective of this research is to prepare a composite with lower cost and better cyclability than the other cathode materials in lithium ion battery. A ternary composition with high efficiency and low cost containing LiFeO2 and Li3V2 (PO4)3 (LVP), was applied instead of pure LiCoO2 to reduce usage of a percentage Co amount, consequently reducing the cost of cobalt and removing its toxic effect in LIBs. In this study, we synthesized ten samples from mixture of xLiFeO2, yLi3V2 (PO4)3, and (1-x-y) LiCoO2 compounds for preparing a suitable cathode electrodes with high initial discharge capacity, large cyclability and inexpensive cost instead of traditional cathode materials. As a results by using Raman Analysis, X‐ray diffraction, and electrochemical analyzing, we found that the Li1.67V0.67 Fe0.33 Co0.33 [(PO4)3,O2] composites has high efficiency and best performance in viewpoint of initial capacity, cyclability, Charge and discharge capacities among these ten composites.
The Relationship Between Infant Birth Weight, Gestational Age, and Hyperbilirubinemia Incidence in Neonates
Authors: Steve Cornelius , Hidayah Dwi , Nugroho Irfan Dzakir , Putra Andhika Trisna
Published: January 2025

Background: Neonatal hyperbilirubinemia is an occurrence where a serum bilirubin value of 5-10mg/dL is obtained and is characterized by jaundice in newborns. This occurrence can be influenced by several factors, one of which is the birth weight of the baby <2,500 grams which is called Low Birth Weight (LBW). The incidence of LBW can be influenced by maternal age, infections that occurred before pregnancy, and one of them is gestational age LBW it self is one of the most critical health problems in various countries. Therefore, researchers are interested in finding the relationship between infant birth weight and gestational age with the incidence of neonatal jaundice.
Subjects and Method: This was a cross-sectional study conducted in Rumah Sakit Umum Daerah Dr. Moewardi on Surakarta. The subjects of this study were 89 neonates who were included in the criteria. The population of this study were neonates with hyperbilirubinemia. Sampling was carried out retrospectively using patient medical records from January to December 2021, using purposive sampling technique. The dependent variable was incidence of hyperbilirubinemia. The independent variables were low birth weight and gestational age. The data were then processed using SPSS version 26 and analyzed using the chi-square test.
Results: LBW and preterm increased the incidence of neonatal hyperbilirubinemia in neonates. Infants with LBW increased neonatal hyperbilirubinemia by 2.34 times compared to adequate birth weight, and this result was statistically significant (OR = 2.34; 95% CI = 1.58 to 3.47; p<0.001). Preterm infants increased neonatal hyper­bilirubinemia by 2.55 times compared to term, and this result was statistically significant (OR = 2.55; 95% CI = 1.68 to 3.58; p <0.001).
Conclusion: There is an important correlation between infant birth weight and gestational age with the incidence of hyperbilirubinemia in neonates in the perinatology room at Rumah Sakit Umum Daerah Dr. Moewardi, Surakarta.
Child Stunting Against Acute Respiratory Infections in Developing Countries: A Scoping Review
Authors: Fadhila Akbar Kholish , Rahfiludin Mohammad Zen , Suyatno Suyatno
Published: January 2025

Background: Acute Respiratory Infections (ARIs) are a leading cause of morbidity and mortality among young children, particularly those who experience stunting. This study aims to map the factors associated with ARIs in stunted toddlers using a scoping review methodology.
Subjects and Method: This scoping review was conducted using data obtained from PubMed Central. The target population included toddlers with stunting and ARIs. A search was performed using the keywords "stunting AND acute respiratory infections AND toddler," yielding 712 articles, which were narrowed down to 8 relevant articles after applying a 10-year time frame. The factors influencing ARIs in stunted toddlers were categorized into five groups: (1) environmental and sanitation factors, (2) nutritional factors, (3) socio-economic factors, (4) co-infections, and (5) genetic and biological factors.      
Results: The factors influencing ARIs in stunted toddlers were categorized into five groups: (1) environmental and sanitation factors, (2) nutritional factors, (3) socio- economic factors, (4) co-infections, and (5) genetic and biological factors. ARIs and stunting are interrelated through various complex factors.
Conclusion: A multidisciplinary approach is essential to enhance access to healthcare services, improve nutritional education, and address sanitation conditions, with the goal of reducing the prevalence of ARIs and stunting in toddlers, thereby supporting optimal growth.
Sistem Keamanan Kotak Paket Cerdas Berbasis IoT dengan Teknologi MQTT
Authors: Sasmoko Dani , Reni Veliyanti  , S. Anang Wijayanto
Published: January 2025

Protokol MQTT digunakan oleh sistem keamanan kotak paket cerdas yang berbasis Internet of Things (IoT) untuk menjamin keamanan dan kecepatan penerimaan paket. Sistem ini menggunakan perangkat ESP32 dan sejumlah sensor, termasuk keypad dan sensor magnetik, serta aktuator seperti solenoid kunci pintu dan LCD yang terhubung ke server MQTT yang bisa di akses melalui perangkat android. Fitur utama sistem ini termasuk notifikasi tentang kedatangan paket, verifikasi identitas penerima menggunakan empat digit terakhir nomor telepon, dan dua mode operasi, otomatis dan manual. Setelah diuji dalam berbagai kondisi, sistem ini telah menunjukkan bahwa itu dapat menjaga keamanan dan memantau status paket secara langsung dengan baik. Hasil uji coba menunjukkan bahwa perangkat keras kotak paket cerdas dan server MQTT dapat berkomunikasi dengan baik, yang memungkinkan kurir dan pemilik berkomunikasi.
“When love stubbornly insists on being in a poem”: Pavlo Movchan the love-erotic
Authors: Vaskiv Mykola
Published: January 2025

The relevance of the article is due to the focus on new aspects of the work of the classic of Ukrainian literature of the twentieth and twenty-first centuries Pavlo Movchan (born in 1939) — the love and erotic motifs, which significantly complement the understanding of his poetic world. The subject of the research was determined by the specifics of P. Movchan’s intimate lyrics and their role in the poet’s work and in Ukrainian literature. The research problems of the article are focused on the inseparable connection of love and erotic motives with the complex of dominant motives of the poet’s work, on their significant role in the artist’s work, on the glorification of love as the apotheosis of an existence, and the loss of love is perceived as the loss of the meaning of life. To solve the research problems, biographical, psychoanalytic, comparative, hermeneutic and formal (philological) research methods were used.

Research results. The poet glorifies love as the pinnacle of the lyrical subject’s existence. Memories about love and the idealized image of his beloved pass through all his work. Various obstacles arise on the way of love, which prompts us to perceive it as sweet torment, and this makes P. Movchan related to many poets of the past and present. With the passage of time, the feelings do not fade away, they crystallize more and more. The lyrical subject comes to the realization of the irreparability of the loss, the perception of the beloved as being of greatest value, which he can no longer be brought back in his life, but can still be enjoyed through memories, dreams, visions, etc.

Love for the lyrical subject is an inseparable spiritual and bodily unity, so eroticism, sexuality, sexual intercourse are integral components of his love lyrics. The poet conveys this in such a metaphorical, veiled form that it was not understood or recited by the censors of the Soviet era, who aimed to combat any manifestation of eroticism, which was then called “pornography”. The sanctity of spiritual and bodily unity for the poet is manifested in the fact that his loved ones most often receive the name Mary, being associated from time to time with the image of the Mother of God. Love and erotic inspiration in the poet’s poems are given to symbolic images of a serpent, apples, strawberries, cobwebs, etc. Love in the poetic world of P. Movchan is a brief moment in the immense stream of thousands of years of the history of inanimate and living matter and energy, but it is the most precious, the most valuable moment that gives meaning to human existence.
STAFFING AUTONOMY IN ESTONIAN AND CROATIAN UNIVERSITIES: A COMPARATIVE ANALYSIS
Authors: Bulvinska Oksana
Published: January 2025

The article is dedicated to a comparative analysis of the possibilities of staffing autonomy in universities in Estonia and Croatia. The research is based on the methodology of the European University Association (EUA), which considers staffing autonomy as a part of institutional autonomy. This includes the ability of universities to decide on recruitment and dismissing rules and procedures, ability to decide on salaries and defining career advancement mechanisms. The selection of countries and universities for comparative analysis is driven by the results of the EUA analytical reports on staffing autonomy, where Estonia holds the highest position (100%) and Croatia the lowest (12%). It is emphasized that university websites offering employment opportunities serve as an innovative tool for human resource management. Based on a comparison of the websites of the University of Tartu and the University of Zagreb, it is concluded that Estonian higher education institutions have greater freedom to define their human resource management policies and practices. In contrast, Croatian universities are constrained by centralized state policies that limit staffing autonomy, define academic personnel as civil servants, and regulate all hiring and career advancement procedures through state legislation. However, the comparative analysis also revealed that both the University of Tartu and the University of Zagreb can set additional requirements for candidates applying for academic positions, which demonstrates the universities’ commitment to staffing autonomy.
Radial consolidation considering Newtonian and non- Newtonian viscous components of the effective stress
Authors: Carneiro Raphael Felipe , Martins Ian Schumann Marques , Gerscovich Denise Maria Soares
Published: January 2025

Research on the viscous behavior of soft soils suggested that the effective stress should be
divided into two components. One is related to the solid contacts between the grains, and its
variation would be the true cause of deformations and distortions. The other is related to the
viscous contacts of the water adsorbed to the grains, which would not cause deformations
or distortions, and would be a function of the strain rate. This model is able to explain
some phenomena, such as secondary consolidation and the increase in pore pressure after
drainage closure. However, a consolidation theory adopting a linear relationship between
the viscous component and the strain rate (Newtonian behavior) could not reproduce the
secondary consolidation as seen in consolidation tests. In this paper, three theories of
radial flow consolidation were developed and solved analytically. In two of them the linear
relationship was adopted, while in the third one a non-linear relationship was proposed
(non-Newtonian behavior). The solutions showed that the linear relationship is in fact not
able to reproduce secondary consolidation, but the non-linear relationship provided much
better results and can be a promising tool for future studies.
Covid Diary Valerie Fritsch
Authors: Fritsch Valerie
Published: January 2025

Covid Diary Valerie Fritsch
The response of inflation to budgetary shocks in Russia
Authors: DERMECHI Feriel , ZAKANE Ahmed
Published: January 2025

Aim: The motivation for this research stems from Russia’s notable high levels of government expenditure due to its continual involvement in armed conflicts, which often result in budgetary imbalances and economic policy uncertainty. These factors impact the inflation rate. This study delves into the complex relationship between budgetary shocks, economic uncertainty, and inflation within the context of the Russian economy. The aim of this study is to unravel how budgetary decisions, made amidst a globally uncertain economic environment, influence inflation dynamics. In other words, the objective of this study is to analyse the effects of budgetary shocks on the inflation rate in Russia, taking into account the uncertain context of her economic policy.
Design / Research methods: To achieve the objective, we employ a Structural Vector AutoRegression (S)VAR approach, covering the period from 2003-Q1 to 2022-Q4. This methodological approach allows for a comprehensive analysis of how economic uncertainty influences the identification of budgetary shocks within an (S)VAR model.
Conclusions / findings: The findings underscore that incorporating the economic uncertainty index into the model yields statistically significant estimates, suggesting that variations in economic uncertainty shape the relationship between budgetary shocks and inflation. This sheds light on the intricate mechanisms through which economic uncertainty influences the behaviours of economic agents and policy decisions, thereby affecting the transmission of budgetary shocks to inflation. In contrast, without the economic uncertainty index, the response of the inflation rate to budgetary shocks is insignificant.
Originality / value of the article: This study makes an original contribution by incorporating the Economic Uncertainty Index to better capture budgetary shocks. By showing how uncertainty affects the effectiveness of fiscal policies on inflation, it offers new perspectives on macroeconomic stability. This approach provides a more detailed analysis of the responses of economic actors and their implications for policymakers in volatile economic environments.
JEL: E31; E62; C51
Learning from Failures: employing fault tree analysis and reliability block diagram to investigate the two deadliest peacetime marine disasters
Authors: SHAH Nadar
Published: January 2025

Aim: This study aims to investigate the root causes of the MS Estonia and Doña Paz maritime disasters and to derive interdisciplinary lessons that can enhance the safety and reliability of maritime operations.
Design/Research methods: The study takes a case study approach and adopts Labib & Read’s (2013) framework for learning from failures. This study addresses the following questions: a) What technical factors contributed to the MS Estonia and Doña Paz maritime disasters? b) What human and organizational factors played a role in these maritime disasters? c) How do the reliability and vulnerability of individual components influence the overall safety and failure risk of MS Estonia and Doña Paz? To answer these questions, Fault Tree Analysis (FTA) and Reliability Block Diagram (RBD) techniques are employed. These methods are used to identify a range of technical, organizational, and human factors that contributed to these accidents and to assess the reliability and vulnerability of individual components affecting the safety and failure risk of the vessels.
Conclusions/findings: The analysis revealed that multiple factors, including technical failures, human errors, and organizational shortcomings, contributed to the disasters. The study found that the emergency response and search and rescue systems were particularly vulnerable, where a failure in any component could lead to system-wide failure. Based on these findings, evidence-based recommendations were proposed to enhance safety management practices, regulations, and oversight in the maritime industry.
Originality/value of the article: This study underscores the importance of a systemic approach to learning from failures. It highlights the necessity of addressing technical, human, and organizational factors in maritime safety and provides a framework for future research and improvements in safety management practices. The findings offer valuable insights for maritime organizations aiming to enhance their safety protocols and prevent future disasters.
JEL: L92, D81, O33, C63, M48
Desarrollo de prácticas de liderazgo intermedio para promover una instancia colaborativa entre docentes: Una experiencia basada en modelo de líderes escolares chinos
Authors: Muñoz-Barrera Valentina
Published: January 2025

El presente texto describe un proyecto de investigación-acción que tiene como objetivo: desarrollar prácticas de liderazgo intermedio en coordinadoras de ciclo, con el fin de generar condiciones estructurales, culturales y relacionales propicias para la implementación de un espacio de colaboración entre docentes. Para esto, se generó un plan de acción basado en las experiencias desarrolladas por líderes de escuelas en China (Qian y Walker, 2021) como por los procedimientos para facilitar el trabajo colaborativo declarados por la Agencia de la Calidad de la Educación (2016). En relación al modelo utilizado, se siguieron los ciclos propuestos por Kemmis y McTaggart (1989) y se utilizaron técnicas de recolección de datos basados en dos instrumentos: entrevistas semiestructuradas aplicadas a las coordinadoras de ciclo, y encuestas a los docentes que fueron parte de la práctica colaborativa. En los resultados obtenidos, se observa un progreso en la eficacia de la colaboración al desarrollar prácticas de liderazgo intermedio. Luego de la intervención, las coordinadoras de ciclo asumen un rol de liderazgo que contempla más actividades ligadas a la gestión, perciben su importancia para generar condiciones que promuevan la colaboración como también espacios sistemáticos y frecuentes de colaboración entre los docentes participantes. En el caso de los profesores, consideran un crecimiento positivo en el rol que llevan a cabo los líderes intermedios para generar la colaboración, situando las dimensiones de promoción y diseño de la práctica como aquellas que mayor cambio tuvieron en las líderes luego de aplicado el plan de acción.
Designing a Communication Tool for Community’s Youth Awareness and Involvement in Environmental Rehabilitation towards Digital Activism
Authors: Pahilan Peach Dianne F. , Gundran John Angelo D. , Omboy Jr. Fernando R. , Ecaranum Angelica N. , Sumicad Chantal M. , Acuno Lovely Mae , Arceño Hanz J. , Monsanto Angeli Pizarro
Published: January 2025

This study explored the critical role of youth in the promotion of environmental rehabilitation. In particular, it sought to find out whether youth are aware of the environmental problems particularly the pollution of the creek located in their community and whether digital activism could motivate them to take part in the rehabilitation efforts. This creek has been polluted for many years causing flooding and other problems. Grounded in the Social and Behavior Change Communication Theory, the research was completed in four phases. In Phase 1, the findings indicated encouraging levels of awareness and willingness from youth to participate in the environmental rehabilitation efforts of the creek. Phase 2 involved designing the digital communication tool, which is the Facebook page "Uswag Bitan-ag," drawing inspiration from literature, elements of design, principles of design, and universal design principles. This tool was created for visual appeal, engagement, and inclusivity, aligning seamlessly with the identified demographic preferences and community needs. In Phase 3, the focus group discussions among selected youth demonstrated positive perceptions of the Facebook page design. Youth acknowledged the tool, noting that it would inform and engage them, with recommendations for varied content, increased post frequency, and a focus on environmental activities. Phase 4 affirmed the tool's effectiveness and design principles. Recommendations included refining balance through white space utilization and enhancing specific design elements for heightened visual impact. The comprehensive findings highlight the transformative potential of digital activism and well-designed communication tools to the youth in fostering community awareness and active participation in environmental rehabilitation initiatives, particularly for the Bitan-ag Creek.
Analysis of the Temporal and Spatial Properties of Platinum Plasma Using Pulsed Nd:YAG and CO2 lasers
Authors: Mohammed Zahraa Adel , Mahdi Wissam Hasan
Published: January 2025

Background:
The impact of laser light and pulse duration on the hydrodynamic properties of plasma was studied in terms of electron temperature (Te), ion temperature (Ti), and ion rate (Z*).
Materials and methods:
 The study was carried out in two stages: in the first phase, five energy levels of the Nd:YAG laser (1, 3, 5, 7, 9 J) and a pulse duration of (10 ns) were used at Full Width at Half Maximum (FWHM). In the second phase, five energy levels of the CO2 laser (1, 3, 5, 7, 9 J) with a (10 ns ) pulse duration .
Results:
 It was observed that at energy values of (1, 3, 5, 7, 9) J for the Nd:YAG laser with a 10 ns  pulse duration, the electron temperature ranged from (214.79 to 690.97) eV. While the electron temperatures as a result of   Co2 laser is ranged between (84.93 to 414.99) eV.
Conclusion:
 We observe the electron temperatures of platinum plasma produced as a result of the ND:YAG  laser  was produced with with the same  levels were higher than the electron temperatures of platinum plasma produced using a CO2 laser.
Hepatoprotector in cases of dengue hemorrhagic fever as a prevention of hepatic damage: a case report
Authors: Gan Emilia , Sumarlim Yenry , Wuryana Desantika , Pristantiningtyas M. Hari , Dharma Herya Putra , Muhammad Muchlis  , Pratama Jainuri Erik , Setiadi Adji Prayitno , Gondokesumo Marisca Evalina
Published: January 2025

Dengue Hemorrhagic Fever (DHF) is classified as an arbovirus disease which is a public health problem in the world. The causative agent of DHF is the dengue virus, namely the RNA virus of the genus Flavivirus and the family Flaviviridae. Hepatic impairment is often observed in DHF cases with asymptomatic or asymptomatic elevations in serum transaminases up to severe manifestations in the form of acute liver failure. It was reported that DHF patients had mild hepatic impairment with clinical manifestations of mild hepatomegaly, hypoalbumin, normal SGOT/SGPT values, and clinical conditions of nausea – vomiting. To prevent worsening liver damage, combination therapy with Ursodeoxycholic Acid (UDCA) and curcumin was given as a hepatoprotector. The use of curcumin can reduce serum levels of transaminase, Malondialdehyde (MDA) or markers of oxidative stress and increase hepatic glutathione concentrations which work in free radical detoxication, while the role of UDCA is as a hepatoprotector by reducing the level of oxidative stress in liver cells.
Lansium domesticum: A natural dual-action defence against dengue mosquitoes
Authors: Yunus Reni , Rosanty Anita
Published: January 2025

Preventing dengue virus transmission, which leads to Dengue Hemorrhagic Fever (DHF), can be effectively achieved using plant-based insecticides. This study investigates the potential of Lansium domesticum extract as both a repellent and a larvicide against Aedes aegypti, the primary vector of dengue fever. Five concentrations of Lansium domesticum extract (10%, 20%, 30%, 40%, and 50%) were tested for their repellent properties, while larvicidal efficacy was evaluated at concentrations of 20%, 40%, 60%, 80%, and 100%. The evaluation of larval mortality obtained an average larval mortality of 5%-20%, then a statistical analysis was carried out using the Anova test. Furthermore, probit analysis was carried out to determine the LC50. Results showed that all concentrations had a repellency rate greater than 50%. The larvicidal tests indicated that the 100% concentration was the most effective in killing larvae. These findings highlight Lansium domesticum as an effective natural repellent and larvicide against Aedes aegypti, offering a promising plant-based solution for dengue fever prevention.
Antioxidant protective effect of Nelumbo nucifera extract against spermatogenic cells in male mice due to 2-methoxyethanol exposure
Authors: Musyarofah Badriatul , Setiyowati Putri Ayu Ika , Syaputra Angella Ananda , Reza Amelia Kartika , Khasanah Yunita Ainul , Solekha Rofiatun
Published: January 2025

One of the causes of infertility in men is influenced by the compound 2-Methoxyethanol (2-ME) that can increase Reactive Oxygen Species (ROS) which can distrub spermatogenesis. This study aimed to analyze the effect of antioxidant of Nelumbo nucifera extract on the histology of mice testicular spermatogenic cells. Male mice are divided into 6 groups. The negative control group (KN) was given distillated for 28 days ad libitum. The positive control group (KP) was injected subcutaneous (s.c) with 2-ME dose 200 mg/kg bw as much as 0.05 ml/ day for 7 days,  the drug group (KO) was injected s.c with 2-ME (200 mg/kg bw) as much as 0.05 ml/ day for 7 days and then injected s.c with Clomiphene citrate with a dose 50 mg/kg bw as much as 0.2 ml/ day for 21 days. The treatment group (P1, P2, P3) was injected s.c with 2-ME (200 mg/kg bw) as much as 0.05 ml/ day for 7 days and injected s.c with N. nucifera extract at low dose 50 mg/kg bw (P1), medium dose 150 mg/kg bw (P2), and high  dose 450 mg/kg bw (P3) as much as 0.2 ml/ day for 21 days. At the end of the study all mice were sacrificed and testicular collection was carried out. Testicular tissue was processed using Hematoxylin-Eosin staining and observed spermatogenic cells (spermatogonia, spermatocytes and spermatids). Data analysis using ANOVA test and advanced test Post hoct test. The results showed that there was a significant difference (p < 0.05) in number of spermatogenic cells of mice testicles between the negative group (KN), positive group (KP) and treatment group (P1, P2, P3). The optimal dose of N. nucifera extract that is most able to repair testicular tissue damage is a high dose.
Hematological profile of pulmonary tuberculosis patients before and after 1 month of taking anti-TB drugs
Authors: Ririh Jatmi Wikandari  , Surati  , Siti Nuryani  , Sistoyono
Published: January 2025

Tuberculosis (TB) is an airborne infectious disease caused by Mycobacterium tuberculosis. Indonesia ranks third in the number of global TB cases. Studies in Indonesia show reduced levels of Hb, Ht, MCV, MCH, and leukocytosis in newly diagnosed and untreated TB patients, with 60% having anemia. The combined use of hematologic markers to assess inflammatory response before and after treatment still needs further investigation.This study was conducted in several Puskesmas in Semarang to determine the hematological profile of tuberculosis patients before and after 1 month of treatment. This study used a quasi-experimental design with one-group pre-test and post-test methods. The study population included all TB patients in the third area of the Puskesmas. Non-probability sampling technique with quota sampling is used to select a sample, consisting of newly diagnosed TB patients (aged 20-60 years, both male and female, and not cases of retreatment). A total of 30 samples were taken (10 from each Puskesmas). Analysis of blood samples is performed using the automated hematology device Sysmex (KX21-N). Data were analyzed using SPSS Version 25 with descriptive statistics and paired t-test was used to compare hematologic profiles before and after treatment. The results showed that anemia often occurred in tuberculosis patients and the number of patients who experienced anemia after treatment decreased from 16 patients to 13 patients. The study also found significant changes in white blood cell (p = 0.004) and platelet (p = 0.005) counts in tuberculosis patients before and after treatment. The increase in white blood cell count after treatment shows clinical improvement, while the decrease in platelets may be due to the action of anti-tuberculosis drugs. Normocytic normochromic anemia is the most common form of anemia in tuberculosis patients before treatment, while microcytic hypochromic anemia is more common after 1 month of treatment.
Exploring the link between leader-member exchange and job satisfaction in the laboratory: A case study of nurses at Royal Prima Medan hospital, Indonesia
Authors: Siahaan Arie Siah Putra , Nasution Sri Lestari Ramadhani , Girsang Ermi
Published: January 2025

Job satisfaction is a critical aspect for hospital management, particularly in laboratory settings, as it significantly impacts nurse performance and the quality of laboratory services. Leadership plays a pivotal role in shaping the work environment, where leaders who effectively perform tasks, adopt appropriate leadership styles, and foster positive relationships can create a conducive and comfortable atmosphere for laboratory nurses. This study investigates the relationship between Leader-Member Exchange (LMX) indicators—affection, loyalty, contribution, and professional respect—and job satisfaction among laboratory nurses at Royal Prima Medan Hospital. Employing a descriptive quantitative approach with a cross-sectional design, this research analyzes data using univariate, bivariate, and multivariate methods. The findings reveal that the majority of respondents were over 45 years old (40.6%), predominantly female (85.7%), had a work tenure of less than five years (57.1%), and held a bachelor’s degree (51.5%). The study identified significant relationships between LMX indicators and job satisfaction: affection, loyalty, contribution, and professional respect each demonstrated positive correlations with job satisfaction. Furthermore, these LMX indicators collectively influenced job satisfaction among laboratory nurses. These findings emphasize the importance of effective leadership in laboratory settings to enhance job satisfaction and ensure optimal nurse performance at Royal Prima Medan Hospital.
Strategi Pencegahan Food Waste di Indonesia
Authors: Dina Resa Ana
Published: January 2025

Seiring dengan pertumbuhan populasi global, kebutuhan akan pasokan pangan yang stabil menjadi semakinkritis, namun paradoksnya terjadi saat jutaan orang masih mengalami kelaparan meskipun ada banyakmakanan yang terbuang. Indonesia, dengan populasi lebih dari 200 juta jiwa, menghasilkan food waste dalamjumlah besar yang terus meningkat setiap tahunnya. Ketidakseimbangan antara ketersediaan dan konsumsipangan, distribusi yang tidak efisien, dan perilaku konsumen yang kurang baik dalam menyimpan danmengelola makanan, menjadi penyebab utama food waste. Dampak dari food waste ini mencakup kerusakanlingkungan, emisi gas rumah kaca yang tinggi, kerugian ekonomi, serta masalah sosial yang serius sepertikelaparan dan kerawanan pangan. Untuk mengatasi masalah ini, pemerintah Indonesia memerlukan strategipencegahan food waste yang komprehensif, dengan fokus pada penurunan jumlah makanan yang terbuangsambil memperhatikan faktor lingkungan, ekonomi, dan sosial. Kerangka DPSIR (Driving Forces, Pressures,States, Impacts, Responses) digunakan untuk memahami penyebab dan dampak food waste. Rekomendasitermasuk menyusun kebijakan yang menyeluruh, yang mengatur peran semua pihak dalam mengurangi foodwaste, terutama di sektor retail, layanan makanan, dan rumah tangga, melalui peta jalan yang jelas, kampanyeperubahan perilaku, redistribusi pangan, dan inovasi dalam pengolahan limbah makanan. Kolaborasi antarsektor esensial untuk mencapai target pengurangan food waste yang efektif.