bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of Value Stream Mapping (VSM) in the Application of Lean Manufacturing to Minimize Waste at PT. Karya Indah Medika
Authors: Fatinnisa Ghina Aldra , Saifuddin Joumil Aidil
Published: October 2024

Achievements to minimize waste can be done by adopting a Lean manufacturing approach. Lean manufacturing is a concept that can design production processes to be better, faster, and cheaper with minimal space, small inventory, small labor hours, and avoid waste. This research takes the case study of PT Karya Indah Medika which is a company engaged in manufacturing to produce medical devices, medical device service services, and medical device installation. In the company there is still waste, especially in unnecessary movements and product defects. This study aims to identify waste that occurs in the company and provide recommendations for improvements in order to minimize waste and obtain optimal production time. Value stream mapping is used to describe all processes in the company. The results showed that the initial production time of 17 hours 18 minutes could be reduced to 1 hour 55 minutes. Based on the Failure Mode and Effect Analysis (FMEA) it is known that the root cause of the problem in the highest waste is workers in a hurry so they are not thorough in working with a Risk Priority Number (RPN) score of 294, lack of materials needed for production, placement of tools that are not in accordance with production needs and a warehouse area that is less extensive by 216.
A Taguchi-Simplex Algorithm for the Optimization of Tapped Density for Particulate Orange Peels
Authors: Ajibade Oluwaseyi Ayodele , Agunsoye Johnson Olumuyiwa , Oke Sunday Ayoola
Published: October 2024

In the composite industry, green fillers transported between locations face undesirable impacts of road surface on powder loads but few methods accurately account for this challenge in tapped density measurements. The purpose of this paper is to introduce a methodology to help composite development engineers manage the transportation of orange particles in transit, on vehicles as they move from the particle production locations to the production process locations. In this paper, the Taguchi method-simplex algorithm (TM-SA) method is proposed for the tapped density optimization of orange peel particulates (OPPs). OPPs of 0.425 and 0.600mm for automobile applications are optimized using experimental data. Managing the transportation process of orange peel particulates and their outcomes needs managing substantial tapped density information. Taguchi method was integrated into the objective function of a simplex algorithm. The tapped density parameters were optimized at the lowest parametric values and the constraints were formulated. It was revealed that for the 0.425mm orange peel particulates, the optimal values and volumetric values were lower by 0.09% and lower by 4.06%, respectively. For the 0.600mm, the optimal values and volumetric values were higher by 0.005% and 6.91%, respectively, when the current method was compared with the literature values from the grey relational analysis. The results at optimality support the effectiveness of the method and were validated by the grey relational analysis results from the literature. The utility of our research is to help green filler powder manufacturers assure cost-effective decisions and logistics delivery optimization.
Optimization of Production Process by Applying Theory of Constraint (TOC) at CV. Wijaya Mandiri Label
Authors: Agraprana Al Aileen , Donoriyanto Dwi Sukma
Published: October 2024

CV. Wijaya Mandiri Label is a company engaged in the printing industry sector located in Sidoarjo which provides printing services inside and outside Sidoarjo. In the production process, problems arise after several years of operation at work stations that cause bottlenecks in the production capacity of bontax and OPP sticker printing, thus hindering the production process to run optimally. This resulted in an inefficient sticker production process in meeting targets that made throughput not optimal. To overcome these problems, researchers conducted research that explored the use of Theory of Constraints (TOC) and supporting methods, namely linear programming, to optimize the company's production process and analyze data on working hours and product production demand. From the results of the research, it was concluded that the company experienced Capacity Constraints which caused bottlenecks at the fourth work station in the last six months. After exploiting the constraints on the bottleneck workstation, throughput is obtained using a linear programming calculation formulation with the results of x1= 0 and x2 = 3,948.47 amounting to IDR16,781,000 in WinQSB software. The final stage of constraint elevation is carried out by allocating operators to bottleneck work stations and obtaining an increase in throughput of IDR6,322,300 or a percentage increase of 27.4% using WinQSB software.
DARKNESS MATTERS
Authors: Costanza Julia Bani
Published: October 2024

Darkness Matters displays historic lightscapes, specifically at night, from petroglyphs to James Webb Telescope images. The exposition constructs a sort of cabinet of curiosities and wants to take the visitor on a private journey to a virtual exhibition space to re-embrace the endeavors under and around the nocturnal vault, an underrepresented micro-story of our times. By researching archive material, image recordings and other available data Costanza Julia Bani creates speculative reconstructions of our nights and our relationship to the universe behind the sky we can see with our naked eye. Starting from fireflies in olive groves, alpine forests and the Milky Way, the exposition becomes a visual experience around darknesses and light pollution that has been transforming our nocturnal habitat since the introduction of artificial light.
A Certain Kind of Freedom
Authors: Marinos Koutsomichalis
Published: October 2024

Άφρικα: A Certain Kind of Freedom is pivoting on artistic exploration and re-interpretation of a 'difficult' recent past. In part soundwalk, in part performance art, in part punk archaeology, in part getting lost in the dark; the work is a nocturnal rumination bringing together historical bewilderedness with first-person embodied experience of a place. The artist leads a night walk towards and inwards Agios Achillios island in Small Prespa Lake in Greece – near the borders of Albania, and North Macedonia – and back. En route, the walking audience is exposed to wildlife sounds and animal vocalisations, to orchestrated drama, and to historical records directly or indirectly concerning the broader geographical area and its significance during the Greek civil war.
Frailty in vascular surgery
Authors: Milenkovic Danijela , Tubic Teodora , Vickovic Sanja , Jovanovic Gordana , Nestorov Natasa , Stosic Lazar
Published: October 2024

Introduction. Frailty manifests as diminished physical capacity and
heightened susceptibility to stressors, significantly increasing the risk of
adverse health outcomes, functional decline, and mortality. Measurement of
frailty. Despite its clinical significance, there is currently no
universally accepted tool for routine frailty assessment in clinical
practice. Frailty has emerged as an independent predictor of postoperative
outcomes across various surgical disciplines, including general surgery,
colorectal surgery, oncology, cardiac surgery, and urology. The modified
frailty index is commonly utilized in research to quantify frailty and
assess its impact on surgical outcomes. Frailty in vascular surgery.
Approximately 39% of patients undergoing vascular surgery are estimated to
be frail. Frail individuals identified face nearly triple the risk of
complications such as postoperative myocardial infarction, stroke, renal
failure, and graft/prosthesis/flap failure. Studies consistently report
higher postoperative mortality rates among patients with higher modified
frailty index scores. Assessing frailty remains a complex task for
anesthesiologist and surgeons during preoperative evaluations. Conclusion.
Early identification of frailty in vascular surgery patients is crucial
given their advanced age and numerous concurrent health conditions.
Optimizing preoperative management tailored to frail patients can
potentially reduce complications and mortality rates.
Probation іn Ukraine: Current State аnd Features оf Implementation
Authors: Bundz Rostyslav
Published: October 2024

It was found that the issue of probation is relevant for Ukraine in the context of harmonizing national practice with international standards of judicial proceedings and execution of punishments and improving the functioning of the legal mechanism of the state. The long period of probation in Ukraine is a confirmation of the humanization of the system of execution of punishments and is characterized by a positive experience, given the possibility of a person who has committed an offense to correct himself within the limits of social formation, and the legal restriction of certain rights of a person allows him to fully understand the consequences that deprivation will have for him will It was emphasized that in Ukraine, in 2018, the "Probation Center" was created, which belongs to the sphere of administration of the Ministry of Justice, whose duties include the implementation of tasks of probation supervision, also, a number of normative legal acts were adopted and changes were made to the existing ones, with the aimof prevention of a person’s loss of social significance and his full correction, outside the limits of the institution of execution of punishment. It is noted that Ukraine recognizes and supports international recommendations and standards in the field of execution of sentences regarding the correction of convicts, their resocialization without isolation from society in order to ensure a comprehensive approach to the prevention and fight against crime, as well as the use of alternatives to pre-trial detention and imprisonment on the basis of the court verdict, which proves the high level of development of criminal justice and civil society. Attention is focused on the fact that probation supervision is the main criminal punishment, which consists in limiting the rights and freedoms of the convict, with the use of supervision and socialeducational measures without isolation from society. Such a limitation is determined by law and established by a court verdict. The process of resocialization is important, during which a positive perception of work, social customs, and the convict’s personal culture is formed. For the implementation of probation programs, the Ministry of Justice of Ukraine has developed methodological recommendations, which are divided into meaningful modules, within which thematic classes are held and tasks are performed that contribute to the development of certain social skills of convicts.
Ukrainian National and Legal Idea: Today`s Challenges
Authors: Koval Ihor
Published: October 2024

It was found that the Ukrainian national-legal idea is the driving force for the preservation and development of Ukrainian identity and statehood based on social and legal ideals, which are formed through the value beliefs, attitudes and orientations of conscious, socially active citizens. Today’s challenges for the national-legal idea of Ukrainians are, first of all, Russia’s military aggression, when the enemy disregards all international and general civilizational rules of human coexistence and tries to destroy our identity, sovereignty and independence. The challenge is not simply the preservation of Ukrainian identity, but, in fact, democracy in the center of Europe. It was emphasized that it is important, despite complex social, political, economic and legal realities, to form a holistic understanding and perception of citizens from an early age, themselves and their nation, traditions, customs, culture as the highest value of national self-identity and the basis of selfaffirmation of a person. Today poses new challenges for Ukraine. Challenges, perhaps the most extensive in the history of the modern development of our state, which are connected not only with the threat to our national identity, but also with the physical destruction of Ukrainians. We are choosing the right to life and our own thousand-year history in the twenty-first century, in the center of Europe. In these challenges of Russia’s war against Ukraine, it is important to preserve our national values, ideals, and ideas, because it is precisely them that the enemy is fiercely destroying, trying to erase our history and the future of Ukrainians. It is noted that the legal ideology, as a component of the legal idea, personifying the law and its essence, establishes the principles of democracy, equality and justice as the main directions of the development of the state and society. Today, we observe Ukrainians realizing the value of the legal ideology of our state, which is aimed at recognizing, observing and realizing the rights, freedoms and duties of a person and a citizen, at the development of a democratic society and a social and legal state. Citizens realized that these are not empty words and that these factors determine the vector of development of our society. Attention is focused on the fact that legal ideology, as a component of the legal idea, personifying the law and its essence, consolidates the principles of democracy, equality and justice, together with the national idea, it accumulates national values, progressive initiatives.
Criminal Liability for Offenses Against National Security: Domestic and Foreign Perspectives
Authors: Kovalchuk Olena
Published: October 2024

The article deals with the issue of criminal liability for crimes against the foundations of national security on the example of domestic and foreign experience of certain countries. The author specifically analyzes the legislative regulation of criminal liability for crimes against national security in the Republic of Lithuania, the Republic of Latvia, the Republic of Estonia, Georgia, the Republic of Armenia, the Republic of Poland, Switzerland, the Federal Republic of Germany, and the French Republic. The author suggests that there is a need for more in-depth research and improvement of the legal regulations regarding criminal liability for crimes against the foundations of national security in Ukraine. The article proposes resolving any inconsistencies between the title of Section I of the Special Part of the Criminal Code of Ukraine, which is “Crimes against the Fundamentals of National Security of Ukraine”, and the content of the relevant articles included in it. This section should address criminal liability for all activities that threaten Ukraine’s national security. Therefore, the author recommends to include provisions for criminal liability related to the protection of state secrets, safeguarding critical infrastructure, expanding the scope of information security, imposing penalties for actions that aim to harm the state by an authorized person representing Ukraine in dealings with the leadership of a foreign state or organization, and establishing criminal liability for individuals who publicly insult the Ukrainian people or Ukraine.
Problems of the Legal Nature of a Monetary Receivable Assignment under a Factoring Contract
Authors: Smolyn Yaroslav
Published: October 2024

The article is devoted to the analysis of the relations of the parties under the factoring contract and the ensuring of the client’s obligation fulfillment to the factor by the assignment of monetary receivables. The client’s obligation to the factor on assignment of the monetary receivables under the factoring contract is analyzed in the article. Based on the exploration of the factoring contract construction, the content of the client’s core obligation to the factor under the conditions of the contract is determined. The assignment of monetary receivables. The assignment of monetary receivables in order to fulfill the core obligation and the accessory one of the client to the factor are analyzed. Their ratios are found out. The approaches of scientists to the justification of ensuring the fulfillment obligations under the factoring contract by assigning the right to a monetary claim, its meaning and feasibility of application in factoring relations are given. The peculiarities and characteristics of the monetary receivables, as a type of the client’s obligations to the factor fulfillment ensuring, are clarified. The thesis about the expediency of distinguishing the assignment of monetary receivables in order to fulfill the core obligation and the accessory one is proposed. The expediency of ensuring the fulfillment of the client’s obligations to the factor is substantiated by a real, individually determined monetary receivable, which has fallen due, because in this case, guarantees to protect the factor’s interests in case the client violates his obligations are created. The correspondence of the criteria for the by the legislator’s formalization of the monetary receivable assignment to the features of the accessory obligation is studied. The nature of the obligations that arise between the factor and the client during the security assignment of a monetary receivables is committed and its implementation by the factor are being researched. Upon the aforementioned the conclusions about the nature of relations between the factor and the client during the accessory monetary receivable assignment implementation which has an inherent intermediary character and the imperfection of the ensuring accomplishment of the obligation mechanism under the contract by the assignment of monetary receivable are made.
Derogation, Abrogation, Nullification: Concepts, Features and Application Examples
Authors: Smolyn Yaroslav , Antsyferova Mariia
Published: October 2024

The article analyzes the legal concepts of derogation, abrogation and nullification, which are tools for regulating relations in society and international relations. It is determined that the derogation means the partial cancellation of the law or its individual provisions, for the purpose of temporary deviation from obligations during emergency situations. Examples of the derogation include the actions of Ukraine during armed aggression by the Russian Federation and the actions of European countries during the COVID-19 pandemic. Abrogation (abolition) means the cancellation or change of an outdated law or agreement. The term has its roots in Roman law, where various forms of abrogation existed. Over time, repeal has evolved into a legal tool that allows governments to repeal outdated laws or make changes without having to maintain the application of the previous rule. Contemporary applications of abrogation include criminal procedure law, where proceedings can be dismissed if charges are not proven, and international procedures, such as pardons or amnesties, which allow convicts to be released without overturning the sentence. It has been established that the term "nullification" is used both in the legal and economic spheres, and means the deprivation of documents of legal force or the recognition of securities as invalid. The historical practice of nullification is considered, starting from the formation of the confederation of North American states, attempts to conclude a new union treaty between the republics of the USSR in 1991, and centrifugal tendencies in the European Union. In modern conditions, as the example of Ukraine with Russia shows, the nullification of treaties can serve to protect national interests in response to external challenges. In conclusion, the author concludes that these legal mechanisms are important for ensuring legal stability and adaptability, allowing to respond to emergency situations and social challenges without violating the basic rights and freedoms of citizens.
The Practice of Court Consideration of Cases of Bringing Persons to Administrative Responsibility for Committing Domestic Violence
Authors: Khomyshyn Iryna
Published: October 2024

The article analyses the practice of courts considering cases of bringing persons to administrative liability for committing domestic violence. As social conditions change, so do the forms of violent acts and the preconditions for their commission, as well as the practice of courts considering such cases. Domestic violence is behaviour in which physical and psychological coercion is used to establish and maintain control over a loved one, with whom the perpetrator is usually connected by common life or family ties. It is often a cyclical pattern of behaviour that escalates, endangering the life and emotional well-being of victims. The rights violated by domestic violence include basic fundamental rights protected by international law, such as the right to life and bodily integrity and freedom from torture and other cruel, inhuman or degrading treatment. The article identifies the penalties most often applied to persons brought to justice, including a fine, which is considered to be insufficiently effective because it may have an impact on the victim and because of the small amount of the fine. The problem identified is that the courts do not pay enough attention to clarifying all the circumstances of the case, and the justification for applying the type of penalty for domestic violence is insufficient. The problem of recording cases of domestic violence is equally problematic, as protocols are often drawn up in violation of the requirements of the Code of Administrative Offences. The problem of recognising children as victims in cases of violence committed in their presence remains. It is noted that the establishment of administrative liability for domestic violence is not a sufficiently effective means of combating domestic violence and preventing its recurrence.
Quantitative Structure-Activity Relationship Study of Fatty Acid Derivatives as Lubricant Additive
Authors: Sugesti Rahmawita , Sutriah Komar , Khotib Mohammad
Published: October 2024

Fatty acid compounds and their derivatives have been known in tribology as a source of bio-lubricant raw materials. New compounds were developed computationally to sort out the physical properties of the desired lubricant additive before synthesis in the laboratory. In this study, the correlation between the chemical structure of fatty acid derivative compounds and their physical properties through the quantitative structure-activity relationship (QSAR) using the density functional theory (DFT) was determined. QSAR model resulted in two linear regression equations for the wear rate performance test at (1) the value of the weld load with 5%, 500N variation and (2) the value of the wear scar diameter 5%, 150N variation. Validation of the regression model was conducted using the leave-one-out (LOO) method. The new additive lubricants were designed using the obtained QSAR models of the wear rate performance test with the descriptor of total energy, dipole moment, and softness. Stearoyl diethanolamine compound was proposed as a lubricant additive with the best performance parameter of weld load and wear scar diameter at 298.03 kg and 0.29 mm respectively. The percentage performance of stearoyl diethanolamine for weld load and wear scar diameter was increased by 24.18% and 47.60%, respectively.
Interior Design Analysis Of Circulation Services In Increasing Visiting Interest In The Palembang Tourism Polytechnic Library
Authors: Amalia Laila Rizki , Amalia Laila Rizki
Published: October 2024

This article discusses the effect of circulation services for library users at the Palembang Tourism Polytechnic Library. The purpose of this study was to determine the effect of circulation services at the Palembang Tourism Polytechnic Library, and also how effective circulation services at the Tourism Polytechnic Library are for users to borrow book collections in the library. Library circulation service itself is the activity of borrowing and returning book collections. This library circulation service depends on the policy of the library whether it is carried out for general borrowing or within the scope of the library itself. Library circulation services not only serve the borrowing and returning of library materials but comprehensive activities towards the process of meeting user needs through circulation services including return activities and extending the borrowing time of library materials. The research method of this article uses a qualitative descriptive type method. Qualitative descriptive research is research that describes the situation in fact as it is.  The conclusion of this article is that spatial layout and circulation services are closely related because they can influence one another to create a comfortable and attractive library to visit.
The Bet of Halala's Luck The Game of Time in Atai Nahay's Novel
Authors: Ali Srwa Tahir , Meera Ahmad Mohammed Rashid , Ali Aram Omer , HamaFaraj Dilan Salam , Abdulla Kanyaw Bakr , Ma'roof Sana Siddiq , Abdulqadir Maudwd Jabar , Salih Lava Othman
Published: October 2024

This study entitled (The Game of Time in Atai Nahai's Novel (The Bet of Halala's Luck) in which the genre of time is the center of the study. At the same time, the concept of time, and time as a prominent and influential genre of the novel, and then the relationship between time and the novel, has a great impact on the novel, to the extent that the author can not give up time in writing the novel. The presentation of techniques that lead to playing with parts of time creates a kind of breakdown in time, which creates aesthetics in the novel text that attracts the reader's attention. The study followed the descriptive analytical approach, and the necessary examples are presented for this purpose.
Cancer new treatment series: Comparison immune changes of HCC by scRNA-Seq following HELC treatment one case study
Authors: Yu Baofa , Gao Feng , Jing Peng , Zhang Peicheng , Zhang Jian , Zheng Guoqin
Published: October 2024

Immunotherapy has emerged as a novel treatment strategy for many types of cancers, among them, liver cancer. The major advances and achievements in recent years is the use of programmed death-1 (PD-1) blockers for cancer treatment. Since patients’ immune systems are already weak following concurrent surgery plus chemo or radiotherapy, it is necessary to restore and awake their immune cells to maximize the effect for immune therapy. Methods: Liver cancers were treated twice with hapten enhanced local chemotherapy (HELC) like tumor lysates vaccine and following PD-1. Single-cell RNA sequencing (scRNA-seq) was used to analyze the changes of immune responses prior and after treatments. Results: We observed upregulation of cytotoxicity-related genes of CD8 effector T cells and NK cells in untreated tumor; Both Bmem and Naive B cells in untreated tumor showed a significant increase in MHC II signaling pathway-related genes, while MHC I-related genes was upregulated in plasma cells. Significant tumor size shrinkage was observed in both treated and untreated tumors following the HELC+PD-1 therapy. Conclusions: This study provides new biological insights into the abscopal effect at the single-cell level related to the composition of T and B cells in untreated liver cancers before and after major primary tumors treated by HELC. Our data showed that intra-tumor HELC can kill tumor cells and induced immune activity, which is likely vital in modifying tumor associate antigens (TAAs) into neo TAAs. It induces immune response just like vaccine can wake up immune cells and therefore increasing the efficacy of PD1 therapy.
Machine Learning-based Filtering system for fNIRS Signals’ Analysis Purpose
Authors: Pelc Mariusz , Mikolajewski Dariusz , Luckiewicz Adrian , Sudol Adam , Mendon Patryk , Gorzelańczyk Edward Jacek , Kawala-Sterniuk Aleksandra
Published: October 2024

This paper presents a preliminary study delving into the application of machine learning-based methods for optimising parameter selection in filtering techniques. The authors focus on exploring the efficacy of two prominent filtering methods: smoothing and cascade filters, known for their profound impact on enhancing the quality of brain signals. The study specifically examines signals acquired through functional near-infrared spectroscopy (fNIRS), a non-invasive neuroimaging modality offering valuable insights into brain activity. Through meticulous analysis, the research underscores the potential of machine learning approaches in discerning optimal parameters for filtering, thereby leading to a significant enhancement in the quality and reliability of fNIRS-derived signals. The results demonstrate the effectiveness of machine learning-based methods in optimizing parameter selection for filtering techniques, particularly in the context of fNIRS signals. By leveraging these approaches, the study achieves notable improvements in the quality and reliability of brain signal data. This work sheds light on promising avenues for refining neuroimaging methodologies and advancing the field of signal processing in neuroscience. The successful application of machine learning-based techniques highlights their potential for optimizing neuroimaging data processing, ultimately contributing to a deeper understanding of brain function.
Research Directions and Methodology for Measuring the Quality of Hotel Services: Bibliometric Analysis
Authors: Wąsowicz-Zaborek Elżbieta , Jaremen Daria , Michalska-Dudek Izabela , Lubowiecki-Vikuk Adrian
Published: October 2024

Purpose

This study aims to map past and current research on hotel service quality, taking into account recent technological developments. It describes the evolution of research subjects, identifies key bibliographic indicators, and explores methodological approaches used in the research.

Design/Methodology/Approach

This study uses bibliometric analysis to examine articles from Scopus and Web of Science (a dataset of 1361 articles). Data preparation, coding, and analysis were done with the R Bibliometrix library, and the analysis of research methods of hotel service quality was done with MaxQDA24. Co-word network analysis allowed for the identification of the thematic clusters and research themes’ evolution over time.

Findings

The study shows the change from traditional to technology-integrated service quality metrics. While quantitative methods remain prevalent, the growing inclusion of artificial intelligence and machine learning can be observed. It highlights how important online reviews and bookings are in evaluating service quality.

Practical Implications

The paper presents the justification for hoteliers’ need to use advanced tools for service quality measurement and embrace digitalization in hospitality management.

Originality/Value

This paper extensively examines how digitalization has changed the approach and evaluation of hotel service quality Mapping scholarly research over three decades explains the transition from the SERVQUAL model and survey research to dynamic, technology-driven instruments. This research offers a comprehensive bibliometric synthesis highlighting digitalization’s transformative impact on hotel service quality assessment and methodology evolution, emphasizing its significance.
Designing Net Asset-Based Income-Splitting Rules under Dual Income Tax
Authors: Kari S. , Ropponen O.
Published: October 2024

This article revisits the income-splitting regulations within the Nordic dual income tax framework. These regulations were introduced to counteract the inclination to transfer income between labor and capital income tax bases. They involve imputing a return on equity, considered as capital income, and taxing the residual portion at rates similar to those imposed on labor income. There are primarily two methods for computing imputed capital income. One method involves imputing a return based on the shares’ acquisition price (implemented in Sweden and Norway), while the other calculates a return using the net book assets of the company (utilized in Finland). This study examines the economic implications of the net asset-based splitting approach, an area not extensively explored in earlier literature. Our findings suggest that with appropriate selection of tax-parameter values, the net asset-based splitting system embodies the fundamental characteristics of a neutral corporate tax system akin to the ACE corporation tax. Consequently, our analysis indicates that the issues regarding incentive concerns in the Finnish taxation of closely held companies, highlighted in previous studies, stem more from erroneous parameter values rather than flawed underlying principles.
Digitalization trends and expectations in Ukraine from a European perspective
Authors: Dziura Boris , Magdich Alisa
Published: October 2024

This paper examines the comprehensive digital transformation initiatives undertaken by the Government of Ukraine between 2020 and 2025, focusing on policy frameworks, infrastructure development, and strategic planning in various sectors. Through legislative measures and infrastructure projects, Ukraine has positioned itself as a leader in digital innovation, with a particular emphasis on artificial intelligence (AI) integration. The adoption of AI technologies across education, economics, cybersecurity, defense, public administration, and legal regulation demonstrates a concerted effort to modernize and optimize key aspects of governance and economic activity. Furthermore, Ukraine’s collaboration with European institutions and participation in initiatives such as the European Open Science Cloud (EOSC) and the Digital Europe program highlight its commitment to aligning with European standards and fostering international cooperation. The paper also discusses the role of international support, particularly from the European Union and USAID, in bolstering Ukraine’s digital resilience and innovation ecosystem. Through strategic partnerships and domestic initiatives, Ukraine aims to harness the potential of digital technologies for economic growth, societal advancement, and resilience against emerging threats.
Measure of Network Effect on Social Media Platforms
Authors: Galani Serban-Vladimir , Anagnoste Sorin
Published: October 2024

Social media platform dramatically changed the world in the last 2 decades. From limited communication possibilities, the individuals found themselves in the posture of connecting with others at only few clicks distance. Those platforms rely on large networks of people and their operators benefit from their effect. The paper examines how network effects impact the financial performance of social media organizations, analyses the strength of these effects on various platforms, and suggests a methodology for calculating the money generated by each user. This comprehensive method seeks to analyze the correlation between user base expansion and income production, providing valuable insights into the strategic importance of network effects in the digital economy.
EVALUATION OF TEXTILE PRINTS PRINTED WITH INKJET PRINTER
Authors:   ", Mendizza Ana ,   Chair of Information and Graphic Arts technology, Department of Textiles, Graphic Arts and Design, Faculty of Natural Sciences and Engineering, University of Ljubljana Aškerčeva 12, 1000 Ljubljana, Slovenia", Urbas Raša ,   "Chair of Information and Graphic Arts technology, Department of Textiles, Graphic Arts and Design, Faculty of Natural Sciences and Engineering, University of Ljubljana Aškerčeva 12, 1000 Ljubljana, Slovenia"
Published: October 2024

In the rapidly evolving textile printing industry, it is critical to understand the impact of substrate properties on print quality. This study objectively compares the print quality and geometric deformations of typographic elements on paper and textile substrates using a large format inkjet printer. We evaluated print non-uniformity and geometric deviations by analysing prints on Microporous Satin Photo Paper and Blackout VI DirectTex textile fabric. Our analysis, conducted using ImageJ software, revealed that the textile substrate had significantly higher NU values and greater variations in both the area and perimeter of the typographic elements compared to the paper substrate. These deviations are attributed to the textured, uneven surface of the textile, the higher thread density and the greater bleeding of the ink, while the smoother paper substrate showed more consistent results. This study highlights the importance of substrate properties in assessing print quality and suggests that future research could focus on optimising materials and printing technologies to improve accuracy on different substrates.
ENVIRONMENTALLY FRIENDLY WATER-BASED INKJET INK PRODUCTION AND DETERMINING PRINTABILITY
Authors:   Marmara University, Faculty of Applied Sciences, Printing Technologies, Istanbul, Turkey, Ozcan Arif , Coskun Serdem ,   "Marmara University, Institute of Science and Technology, Printing Technologies, Istanbul, Turkey", Arman Kandirmaz Emine ,   Marmara University, Faculty of Applied Sciences, Printing Technologies, Istanbul, Turkey
Published: October 2024

Inkjet printing system, one of the digital printing systems, has a more widespread market day by day due to its low operating costs and allowing variable data printing. Bio-based inks, in which natural polymers are used and whose solvent is water, are attracting more and more attention both in the food industry and other industries, in order to reduce the decrease in oil resources and possible harm to environmental and human health. Polymers that can be used in naturally sourced inks include cellulose, starch, polylactic acid, polyvinyl alcohol, and cellulose derivatives. In this study, water-based ink was prepared with magenta pigment as a colorant and hydroxyethyl cellulose, a natural polymer as a binder, and printed with thermal inkjet, and its printability properties were examined. For this purpose, the study started with the preparation of ink. In ink production, first, a binder was prepared with hydroxyethyl cellulose and water. 6.5% magenta pigment was added into the prepared binder. The viscosity of the ink was adjusted to 9 cP using pure water. Since the colorant used is water-soluble, there is no need for a surfactant. Surface tension was adjusted to 31 mN/m with 3 drops of BYK 348. Test prints were made with the obtained ink using the BENTSAI BT-HH6105B1 Portable Handheld Mobile inkjet printing machine. The most stable prints were obtained at 1 m/s speed, 300 dpi resolution and 11 volt printing parameters. The color measurements of the obtained prints were measured with an X-Rite spectrophotometer and their gloss was measured BYK Gardner gloss meter. As a result, it was determined that stable ink with good printability parameters was produced in thermal inkjet
THE IMPACT OF LASER ENGRAVING PARAMETERS ON THE COLORIMETRIC PROPERTIES OF STEEL SURFACES
Authors:   University of Zagreb Faculty of Graphic Arts, Zagreb, Croatia, Cviljušac Vladimir , Lojan Veronika ,   University of Zagreb Faculty of Graphic Arts, Zagreb, Croatia
Published: October 2024

Laser engraving technology is increasingly prevalent in the graphics engineering industry due to its speed, precision, and capacity for individualization. This method is widely used for decorative metalwork, metal packaging, and signage, providing high-quality aesthetic results on various surfaces. This study investigates the impact of different laser engraving parameters, such as speed, hatching, frequency, and power, on the colorimetric properties of steel surfaces. The experiments were conducted using a fiber laser with a power of 30W and a wavelength of 1064 nm on polished steel plates measuring 20 x 20 cm with a thickness of 4 mm. Engraved samples, each measuring 5 x 5 mm, were produced, with laser parameters varied for each sample. After engraving, each sample was analyzed under a microscope and measured using a spectrometer to accurately determine colorimetric values, offering precise quantification and analysis. The results indicate that engraving speed significantly affects the depth and intensity of color, with lower speeds allowing deeper oxidation and more saturated colors. Increased laser power generates greater heat, resulting in more vibrant color tones. The frequency and pulse duration of the laser influence energy distribution and heating patterns, with shorter pulses producing precise changes in colorimetric properties and longer pulses causing deeper alterations. The hatching pattern also affects the colorimetric properties due to variations in heat distribution and energy absorption. High temperatures are critical for color formation as they facilitate the oxidation process, where the oxide layer's thickness and composition determine the final color. These findings enable designers and technicians in the graphics engineering industry to control the aesthetic aspects of steel engraving with greater precision. Moreover, the results of this study could be utilized to develop software for the automatic adjustment of engraving parameters to achieve desired color images on steel surfaces. Such software would significantly enhance the efficiency and effectiveness of laser engraving processes, offering new possibilities for creative applications in the design of metal packaging and signage. By integrating these insights, the graphics industry can achieve more consistent and high- quality outcomes, driving innovation and expanding the potential uses of laser engraving technology.
MICRO-INTERACTIONS WITHIN USER INTERFACES
Authors:   Faculty of Graphic Arts, Zagreb, Croatia, Jergović Mihael , Stanić Loknar Nikolina ,   Faculty of Graphic Arts, Zagreb, Croatia, Koren Ivančević Tajana ,   Faculty of Graphic Arts, Zagreb, Croatia, Agić Cmrk Ana ,   Faculty of Graphic Arts, Zagreb, Croatia
Published: October 2024

This article examines the impact of micro-interactions on the user experience of digital products. A well-structured information architecture with beautiful illustrations is no guarantee for good user experience. It is the small details that can make the experience of digital products more entertaining, more intuitive and closer to people. Small additions make the product more appealing and give users an element of feedback or satisfaction when completing a task. These details, called micro-interactions, are feedback- based events that help users complete a task while making it interesting. The paper explains the process of creating micro-interactions based on the four main components, which are: triggers, rules, feedback, and modes of operation and loops. Warning micro-interactions as well as positive and negative feedback are designed. The impact of the micro-interactions on the user experience was examined through testing the designed prototypes.
OBJECTIVE VIDEO QUALITY COMPARISON OF USER-GENERATED CONTENT PLATFORMS
Authors:   Faculty of Informatics and Statistics, Prague, Czech, Svoboda Jaroslav
Published: October 2024

Uploading videos to platforms for sharing has been a core feature of the internet for nearly two decades. Advances in video encoding algorithms, their standardization, and increased computational power have significantly improved the visual quality of online videos. This paper evaluates the video quality across several popular platforms, including YouTube, Facebook, and Vimeo. Using three test sequences with varying content characteristics, the study employs full-reference objective video quality metrics—VMAF, PSNR-HVS-M, and MS-SSIM—to assess video quality at resolutions supported by all platforms. The results provide insights into the comparative performance of each platform in delivering high-quality video
EXPLORING THE IMPACT OF STEREOTYPE THREAT AND IDENTIFICATION ON GAMING PERFORMANCE: A PILOT STUDY USING CUSTOM AVATARS
Authors:   ", Kerac Jelena ,   University of Novi Sad, Faculty of Technical Sciences, Department of Graphic Engineering and Design, Novi Sad, Serbia", Milić Keresteš Neda ,   "University of Novi Sad, Faculty of Technical Sciences, Department of Graphic Engineering and Design, Novi Sad, Serbia", Golubović Gala ,   "University of Novi Sad, Faculty of Technical Sciences, Department of Graphic Engineering and Design, Novi Sad, Serbia", Ilić Tamara ,   "University of Novi Sad, Faculty of Technical Sciences, Department of Graphic Engineering and Design, Novi Sad, Serbia"
Published: October 2024

Stereotype threat, the fear of conforming to negative stereotypes associated with one’s group, can significantly impact individuals in various contexts, including education, professional settings, and even entertainment, such as video games. In this study, a pilot experiment is conducted to examine the effects of stereotype threat on players’ performance within a gaming environment. The methodology follows existing literature and employs a 2x2 matrix design. The participants play a simple 3D platform game and are divided into two groups: Custom Avatar Group – Participants in this group use avatars created from their own images; and Premade Avatar Group – Participants in this group use preexisting avatars that correspond to their gender while playing the game. Additionally, the presence of stereotype threat is manipulated by exposing half of each group to a fictitious article specifically designed to induce gender-related stereotype threat. This paper aims to address the following questions: (i) Can the recently available technology that enables players to create custom avatars based on their own images be successfully utilized for this type of experiment? (ii) How does stereotype threat impact players’ in-game performance? (iii) Is there a correlation between the higher impact of stereotype threat and gender? The results of this paper will check for the impact on in-game performance of the new technology allowing players to play as themselves in video games
FROM SKETCH TO ANIMATED 3D MODEL: THEATRICAL COSTUME DESIGN
Authors:   ", Ilić Tamara ,   Faculty of Technical Sciences, Department of Graphic Engineering and Design, Novi Sad, Serbia", Banjanin Bojan ,   "Faculty of Technical Sciences, Department of Graphic Engineering and Design, Novi Sad, Serbia", Pinćjer Ivan ,   "Faculty of Technical Sciences, Department of Graphic Engineering and Design, Novi Sad, Serbia"
Published: October 2024

Theatre costume design is a demanding process that requires the collaboration of the play's creative team, including the director and performers. Traditionally, the process involved phases such as sketching, tailoring, sewing, and fitting. Nowadays, these phases have been transformed through digital reconstruction, clothing simulation, and motion-tracking tools. This paper aims to illustrate the theatrical costume design process using Tibor Vajda's play Pygmalion as a case study and to explore how modern technology can breathe new life into the process. The study examines the costume design workflow, from the initial sketching to crafting costumes that meet the play's specifications. The characters' costumes were redesigned using Marvelous Designer, and the movement of Miljana Kravić’s character Eliza Doolittle was recreated using motion-tracking achieved with Wonder Dynamics. The result of this approach was a Blender animation that could serve as a costume-fitting preview for the creative team. This study provides insights for future projects, including the potential for three-dimensional theatrical productions emphasizing performers and scenography along with costumes, especially for plays that have been withdrawn from the repertoire.