bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of a fractal modification of attachment oscillator
Authors: Lu Jun-Feng , Ma Li
Published: May 2024

In this paper, we consider a combined technique for a fractal modification of
the attachment oscillator arising from nanotechnology. This technique is
called as TSFT-GRHBM by coupling the two-scale fractal transformation and
the global residue harmonic balance method. The approximations and
frequencies of this fractal attachment oscillator are given without
linearization. Numerical results are provided to confirm its efficiency.
The bubble electrostatic spraying a new technology for fabrication of superhydrophobic nanofiber membranes
Authors: Wei Li , Zhao Lei , Zhu Ting , Wang Qianwen , Zhao Jumei
Published: May 2024

Researchers are excited about the latest advances in the long needle
electrospinning and the bubble electrospinning, which have triggered
wide-spread concern. This paper offers a new angle for modifying both
methods, the former is developed into a modified one with an auxiliary
helix needle, which is used for fabrication of super-hydrophobic
polyvinylidene difluoride-copolypolyhexafluoropropylene nanofiber membrane
(PH-E membrane for short), and the latter is extended to a bubble
electrostatic spaying, which is used for spraying PDMS microspheres on the
PH-E membrane surface, and the resultant membrane is called as the PDMS-PH-E
membrane. Both membranes hydrophobicity, surface roughness, porosity, and
wetting property are measured and compared, and the drop impact dynamical
property of the PDMS-PH-E membrane has opened the path for a new way to
design of self-clearing and anti-fouling and anti-wetting surfaces.
Far-reaching applications of the membranes include energy harvesting
devices and sensors. We anticipate this article to be a starting point for
more sophisticated study of the bubble electrostatic spaying and PDMS-PH-E
membrane advanced applications.
Teenagers’ Well-Being through Family Leisure Activities
Authors: Fachrandini Ayudhia , Febriani Zulfa
Published: May 2024

The rise in mental health issues and suicide rates among adolescents in Indonesia emphasizes the significance of prioritizing adolescent mental health. One key contributor to mental health issues and suicide among adolescents is the family unit. The psychological well-being of adolescents is linked to the dynamics of dual-earner families. The study seeks the correlation between family engagement in leisure activities and adolescents' psychological well-being from dual-income households in Indonesia. The research method employed is correlational. The study cohort comprises 173 adolescents from dual-income households selected through accidental sampling. Family Leisure Activity Profile (FLAP) and Ryff's Psychological Well-being Scale (RPWBS) measured family participation in leisure activities and subsequent psychological well-being. The results of the Spearman-rank correlation test revealed a significant positive association between family engagement in leisure activities and psychological well-being dimensions such as autonomy, environmental mastery, positive relationships with others, purpose in life, and self-acceptance (rs= 0.237-0.294, p< 0.01). The results also showed no correlation between family involvement in leisure activities and personal growth (rs= 0.880, p= 0.295). Therefore, increased family involvement in leisure time corresponds to enhanced psychological well-being for adolescents in dual-earner families. Parents who work should organize routine activities and leisure time with their teenagers, which promote self-expression, values transfer, and improved family members’ psychological well-being.
The Role of Self-Efficacy and Competence in International Student’s Sociocultural Adaptation
Authors: Ardi Rakhman , Az Zahra Mutia
Published: May 2024

This study examines the role of self-efficacy in intercultural communication as a mediator between competence perception and sociocultural adaptation among international students in Japan. The research uses a quantitative approach with convenience sampling technique, and obtains 92 international student participants. Several validated questionnaires are utilized, namely the Sociocultural Adaptation Scale (SCAS), a = 0.874 by Ward & Kennedy (1999) adapted by Simic-Yamashita & Tanaka (2010); Self-Efficacy in Intercultural Communication (SEIC) a = 0.914 by Peterson et al., (2011); Japanese Proficiency by Iwao & Hagiwara (1988); and Intercultural Communication Competence (ICC), a = 0.691 adapted by Gonçalves et al. (2020) from Arasaratnam (2009). A hypothesis model is constructed with competence perception as the predictor, self-efficacy as the mediator, and sociocultural adaptation as the dependent variable. Competence perception is a latent variable measured by two manifest variables: intercultural communication competence and Japanese language proficiency. Data analysis is conducted using Path Analysis, a form of Structural Equation Modeling (SEM), with results indicating that the hypothesis model has an acceptable fit index. Although the proposed hypothesis model as a whole can be confirmed, a significant effect is found in the direct path between competence perception and sociocultural adaptation, while the indirect path is not significant. This means that self-efficacy does not act as a mediator, but rather as a predictor in sociocultural adaptation. The practical implications of this study emphasize the importance of stakeholders, such as international offices at universities, paying attention to the role of language proficiency, intercultural communication competence, and self-efficacy in international migrant students, especially in taking preventive or curative actions for adaptation problems.
Islamic Education for Disabilities: Exploring Psychological Approaches through Bibliometric Analysis
Authors: Tamami Fauziyah Qurrota Ayun , Maksum Muhammad Nur Rochim , Rahmawati Siti , Anwari Afifah
Published: May 2024

This study aims to determine the mapping of the development and direction of research on Islamic Education for disability, reviewing on Psychological through bibliometric analysis taken from several articles indexed by the Scopus database, the results of data found in tiers from 2020 to 2024 to find relevant gaps. The data obtained is then analyzed using software in the form of R/R-Studio, VOSViewer, Microsoft Excel to find keywords, stimulant document citations. 431 papers were located by researchers that satisfied the predetermined criteria for subject, function, and size. This study’s findings indicate a yearly increase rate. The collected articles are examined based on the number of research published annually and the science field. The scope of the bibliometric analysis was restricted to data from Scopus. This study’s shortcoming is that it only uses data sets or meta data for publications that Scopus has indexed. This study offers suggestions for futhuer research as well as a concise summary of the material available to scholars studing Islamic Education for Disabilities Psychological Review.
PENGARUH PEMBERIAN TEMULAWAK (Curcuma xhanthorrhiza) TERHADAP PERFORMA PRODUKSI KAMBING PERANAKAN ETAWA
Authors: Rifki Muhammad , Qisthon Arif , Farda Fitria Tsani , Muhtarudin Muhtarudin
Published: May 2024

Penelitian ini bertujuan untuk mempelajari pengaruh penambahan temulawak terhadap konsumsi ransum, pertambahan bobot badan harian, efisiensi ransum, dan income over feed cost kambing Peranakan Etawa.  Penelitian dilaksanakan selama 30 hari di peternakan kambing milik Bapak Adel, Kampung Sanggar Buana, Kecamatan Seputih Banyak, Kabupaten Lampung Tengah, Provinsi Lampung dan Laboratorium Nutrisi dan Makanan Ternak, Jurusan Peternakan, Fakultas Pertanian, Universitas Lampung.  Penelitian ini dilakukan secara eksperimental menggunakan metode rancangan acak lengkap (RAL) dengan empat perlakuan dan tiga ulangan.  Perlakuan yang diberikan yaitu P0 (pakan basal tanpa temulawak), P1 (pakan basal + 8 g temulawak), P2 (pakan basal + 12 g temulawak), dan P3 (pakan basal + 16 g temulawak).  Data yang diperoleh akan dianalisis menggunakan analisis ragam dan dilanjutkan dengan uji BNT.  Hasil analisis ragam menunjukkan bahwa penambahan termulawak berpengaruh nyata (P<0,05) terhadap konsumsi ransum sebesar 1,48 kg BK/ekor/hari, pertambahan bobot badan harian sebesar 133,33 g/ekor/hari, efisiensi ransum sebesar 9,02 % dan income over feed cost sebesar Rp. 143.168,91.  Perlakuan terbaik diperoleh dengan level temulawak 16 g (P<0,05) terhadap konsumsi ransum sebesar 1,48 kg BK/ekor/hari, pertambahan bobot badan harian sebesar 133,33 g/ekor/hari, efisiensi ransum sebesar 9,02 % dan income over feed cost sebesar Rp. 143.168,91.
ANALYSIS OF SCIENCE PROCESS SKILLS OF HIGH SCHOOL STUDENTS IN MEDAN CITY
Authors: Mukra Rizal , Nuzalifa Yosie Ulfa , Septiani Findi , Rahmawati Suci
Published: May 2024

This research aims to determine the results of science process skills in four state schools in Medan City. This type of research is descriptive with a quantitative approach. Samples were obtained from 4 schools using Cluster Sampling based on the criteria for State High Schools in Medan City, namely MAN 1, MAN 2, State High School No. 3, and State High School No. 4 Medan. Using science process skills test question for class XI student on Biology subject. Using descriptive analysis technique by calculating average data values. The result of this research is that students' science process skills at four state schools in Medan City average 74.74. The highest value is in the communication aspect and the lowest is in planning the experiment.
ANALISIS KEMAMPUAN MAHASISWA CALON GURU FISIKA DALAM MENGINTERPRETASIKAN DAN MENGGUNAKAN KURIKULUM MERDEKA
Authors: Lutfin Nursakinah Annisa , Rahmadhani Aulia , Tuada Rasydah Nur
Published: May 2024

This study aims to get an overview of the abilities of prospective physics teacher students in interpreting and using the Independent Curriculum. The sample for this study was 55 physics education study program students from the 2019-2021 class at the University of West Sulawesi, who were selected based on the experience of students teaching at school and who had programmed microteaching and PPL courses. The instrument used in this study was an Independent Curriculum questionnaire with alternative answers Strongly Agree (SA), Agree (A), Disagree (D), and Strongly Disagree (SD) which were compiled by researchers and validated by 3 experts. The research data were analyzed descriptively quantitatively and grouped into Very High, High, Low, and Very Low assessment criteria. The results show that the ability of prospective physics teacher students in interpreting and using the Independent Curriculum is based on indicators of understanding the outlines of the Independent Curriculum, indicators of understanding learning and assessment, indicators of understanding the development of the operational curriculum of educational units in the Independent Curriculum, and indicators of understanding the development of projects to strengthen Pancasila student profiles respectively each is in the high criteria.
The role of Ukrainian political and legal thought in strengthening the national self-identification of Ukrainians of Galicia in the interwar period
Authors: Melnyk A. I.
Published: May 2024

The article summarizes the contribution of national-democratic, conservative and nationalist thinkers to the restoration of Ukrainian statehood based on the analysis of ideological and worldview doctrines of representatives of Ukrainian political and legal thought of the interwar period. The forms and methods of struggle, which are the basis of the state concepts created by them, are summarized. It was established that the defeat in the national liberation struggle of the Ukrainian people at the beginning of the 20th century led to the transformation of the worldview of many Ukrainian scientists and politicians, who, despite ideological differences, had a common strategic goal - the need to restore and establish a sovereign, independent Ukrainian state.
The study of the intellectual heritage of the leading representatives of Ukrainian political and legal thought gave reason to conclude that the failure of Ukrainians to form an independent state was largely connected with the weakness of the national consciousness of the people and the insufficient ideological and political maturity of its leaders. In view of this, Ukrainian political and legal thought was aimed at strengthening the national self-identification of Ukrainians and their awareness of their political interests.
It is argued that the scientific approach to substantiating the idea of national-state independence of Ukraine was initiated by Stanislav Dnistryanskyi, one of the founders of Ukrainian political and legal thought of the national-democratic direction. It is characterized (according to Volodymyr Starosolskyi) that the struggle for one’s own (national) state is a historically political factor in the formation of a nation. It is emphasized that disappointment in the ineffectiveness of the republican-democratic methods of organizing power prompted V. Lipinsky and other representatives of conservative opinion to search for more adequate forms of state organization. It is shown that in the interwar period for the Ukrainians of Galicia, nationalist ideology was especially important, which had a powerful influence on the formation of the Ukrainian nation as a self-aware, social, cultural, legal and political community and was a prerequisite for the creation of its own sovereign and independent state.
Formation of the preconditions for the emergence of criminalistics as a science in Ukraine (9th–18th centuries)
Authors: Golovko B. G. , Golovko B. B.
Published: May 2024

The article examines the peculiarities of the emergence and formation of methods of forensic investigation, which over time, in the 19th century, took shape in the science of forensics. To solve the problems, the authors used several methods, both general scientific and special. Among them: formal-legal, comparative-legal, historical-legal, dialectical, historical, systemic, hermeneutic, etc. The authors identified the main, in their opinion, stages of the development of criminology in Ukraine, starting with the formation of the Old Russian state. The first steps of the creation and implementation of forensic methods during the investigation of crimes, which were enshrined in the most famous monuments of law – «Laws of King Hammurabi», «Laws of the XII Tables», Byzantine legal collections, «Ruska Pravda», «Lithuanian Statutes», «The rights by which the Little Russian people are judged.» The article proves that the formation of individual manifestations of forensic research in Ukrainian lands during the Middle Ages and the first centuries of modern history was based on world experience in this area, as well as on the idea of justice, the need to restore law and order. It is emphasized that the formation of ideas about the methods of forensic research that appeared in Ukraine is connected with the genesis of the Ukrainian legal system and turned, over time, into one of its institutions. The authors suggest that, in contrast to the application of punishment, which had a class character, the organization of forensic investigations established the truth and therefore did not depend on the class affiliation of the participants in legal relations. The opinion that both in ancient times and at the beginning of the Middle Ages, forensic methods were closely intertwined with the elements of the investigative process, within which they were actually applied, is substantiated. It was established that the crippling forms of punishment, which were applied by court decision, were also intended to «emphasize» the identity of the criminal, to single him out in order to facilitate the search in case of repeated offenses. The authors concluded that the legal regulation of forensic research methods became a guarantee of their development, distribution and transformation, over time, into an independent science.
Refusal to open a lawsuit in a civil process
Authors: Kholmogorova L. V.
Published: May 2024

The article examines the refusal to open a lawsuit as a procedural duty of the court in civil proceedings. It is claimed that during the exercise of the right to file a lawsuit, a number of civil procedural duties appear before the court, which it must implement depending on what grounds will be established at the stage of opening the lawsuit. One of these duties is the duty of the court to refuse to open proceedings on the case, if grounds for this are established by the court.
The view of the refusal to open proceedings on the case as a possibility of the court is denied, since «possibility» indicates a right, but the procedural right of the plaintiff cannot be opposed by the right of the court, because it does not correspond to the generally accepted idea of the corresponding relationship of rights and obligations. Fulfillment of an obligation is a condition for the realization of a certain right. Having exercised the right to file a lawsuit, the plaintiff presented the court with the need to fulfill a certain civil procedural duty, depending on what grounds he establishes.
The reasons for refusing to open a lawsuit are analyzed and their exceptional nature is noted. The explanation of the mentioned grounds is carried out not only using the provisions of the doctrine of civil procedure, but also the modern practice of applying the norms of civil procedural legislation, including the legal positions of the Supreme Court.
A classification of grounds for refusal to open a lawsuit is carried out in the context of their comparison with the prerequisites of the right to sue in the procedural sense (the right to file a lawsuit). It is noted that the prerequisites of the right to a lawsuit do not presuppose the emergence of civil procedural relations at the stage of opening a lawsuit. They point to the existence of the right to a lawsuit in statics, where the will of the person to initiate the opening of legal proceedings has not yet manifested itself.
Features and subjects of the contract for the supply of electricity to the consumer
Authors: Hnatiuk T.
Published: May 2024

In this study, the author examines in detail one of the types of sales contract - the energy supply contract, which in the late 20th - early 21st centuries is a necessary element of the life of society, a mandatory condition for the development of the economy, since the supply of energy resources to one degree or another requires all physical and entities. Over the past ten years, Ukrainian civil legislation, which regulates contractual relations, in particular relations in the field of energy supply, has radically changed. In the Civil Code of Ukraine, a whole group of articles regulating relations related to the conclusion, execution and termination of contracts in the field of energy supply appeared. The legal norms governing the relationship between electricity suppliers and its consumers have undergone radical changes. The relationship between the owner of energy and the organizations that transport it (electricity and heat networks) is being built in a fundamentally new way. Today, the question of whether energy is a thing and whether it can be the object of property rights is problematic and debatable. To what type is the contract according to which the power plant (as a supplier) undertakes to provide the consumer with electric energy? Can such an activity be considered contractual, since the power plant undertakes to carry out the work, the necessary delivery of energy to the consumer, or is it still another activity? In the article, the author considered the rules for concluding an energy supply contract and the features of a universal service provider. Particular attention is paid to the supplier of the «Last Event», the powers and duties of such an entity are disclosed. The author concludes that the contract for the supply of electric energy to the consumer can be considered both as a public contract and as a connection contract. The basic requirements for the electricity supplier from the consumer, the legality of its activity, the possibility of switching to a new supplier are indicated. Special features of the energy supply contract include: provision of energy through the connected network; availability of consumer energy metering devices; the right of the counterparty (energy supply organization) under the energy supply contract to supervise the technical condition of the consumer’s current receivers in order to ensure safety and reliable energy supply.
Adopción de la teoría del balance como medio de búsqueda del equilibrio en las ciencias administrativas
Authors: Boada Antonio , Muñoz Yaromir , Pacheco Jessica del Valle
Published: May 2024

La administración como técnica clásica de planificación, estrategia y organización total de recursos ha sido diseñada, especialmente, con el objetivo de extraer el máximo de beneficios según los recursos disponibles. El ser humano se incorpora como recurso para fines organizacionales, pero expresa su subjetividad en busca de su deseo y proyección en el marco de las exigencias institucionales. De ahí que sea viable contextualizarla bajo la visión de balance y equilibrio. Por ello, se expone como una propuesta teórica novedosa en donde la definición de “beneficio” se extiende más allá de la utilidad financiera, modelos positivistas y reduccionistas, por cuanto se plantea una revisión de la literatura en la que todo sujeto (natural o corporativo) se identifique como un ente valorador de la maximización del beneficio bajo un balance entre el entorno y el esfuerzo realizado.
Unilateral Sanctions under International Law and Effectiveness of Blocking
Authors: Boklan D. S. , Koval V. V.
Published: May 2024

INTRODUCTION. This article discusses modern international legal concept of unilateral sanctions. The authors contribute to the emerging discussion on the qualifying of unilateral sanctions under international law.

MATERIALS AND METHODS. In this study we took into account the works of both Russian and foreign scholars in the field of international economic law, as well as analyzed documents and materials of international organizations (United Nations (UN), World Trade Organization (WTO) and others) in order to assess the compatibility of unilateral sanctions with international law. General scientific methods of cognition (analysis, synthesis, induction, and deduction), special legal methods (formal-legal, technical-legal, method of legal analogy) and comparative legal method were used in the presented research.

RESEARCH RESULTS. Presented analysis has shown that widely used term “unilateral sanctions” leads to abusive and inappropriate use of international legal term. Analysis of compatibility of unilateral sanctions with other types of coercive measures such as countermeasures, UN Security Council sanctions, retortions, reprisals have shown that unilateral sanctions do not fall under the meaning of all mentioned measures. In addition, unilateral sanctions should not be justified under the WTO security exceptions. The use of extraterritorial unilateral sanctions contradicts one of the fundamental principles of international law – principle of non-interference in internal affairs. Existing blocking unilateral sanctions mechanisms are not efficient enough to compensate negative effect posed by unilateral sanctions.

DISCUSSION AND CONCLUSIONS. Authors concluded that unilateral sanctions in most of the cases do not satisfy cumulative criteria of legitimate countermeasure. Unilateral sanctions are not equivalent to the United Nation Security Council sanctions, as there are no “checks and balances” in the decision-making process in the form of determining the degree of threat to peace and security and taking into account humanitarian exceptions. Although there is some correlation between unilateral sanctions and retortions or reprisals, retortions and reprisals posses criteria of legality and proportionality, while, unilateral sanctions are introduced at the state’s discretion without any standard. Furthermore, the authors argue that to avoid abusive use of the WTO security exceptions WTO panels have to rely on the well-balanced approach used by the Panel in Russia – Transit case. This approach shows that the context of security exception should be understood as encompassing only military and closely related to military issues and does not cover political, economic, cultural or any other interests and relations. Existing blocking mechanisms of unilateral sanctions require separate qualification under international law including compatibility with the legitimate countermeasures.
Correlation between the Arbitrators’ Discretion and the Natural Justice in Arbitration Proceedings
Authors: Kapustina N. A.
Published: May 2024

INTRODUCTION. This article discusses the ap­proaches developed by the courts of the Asia-Pacific region (on the example of Singapore, Hong Kong and Malaysia) on the relationship between the arbitrators’ discretion when considering disputes and the obser­vance of the principle of natural justice.

The purpose of the article was to analyze the ap­proaches of national courts to the interpretation of the principle of natural justice in the context of the imple­mentation by arbitration of its discretionary powers in resolving disputes submitted to them. The risk that the arbitrators fail to find a balance between discretionary powers and natural justice is that the award may be set aside.

MATERIALS AND METHODS. The study was based on the analysis of national legislation of the countries of the Asia-Pacific region, the practice of ar­bitration centers and judicial bodies, as well as the ex­isting positions of researchers specialized in the natu­ral justice issues and practitioners in the field of international commercial arbitration. The methodo­logical basis of the research includes general scientific (analysis) and special legal (comparative legal) methods.

RESEARCH RESULTS. International commercial arbitration is widely regarded as an alternative dis­pute resolution mechanism to litigation in national courts. However, national courts are often involved in reviewing arbitral awards in the context of their set­ting aside in order to ensure that the arbitral proce­dure complies with the fundamental principles of nat­ural justice. The understanding of the principle of natural justice is not the same in all jurisdictions and depends on the venue of the arbitration, as well as on what rules the parties have agreed to govern the pro­ceedings. Arbitral discretion is important in filling the gaps left by the rules and guidelines formulated by various arbitral institutions and practices.

DISCUSSION AND CONCLUSIONS. The author considers the approaches of the courts of Singapore, Hong Kong and Malaysia ensuring a balance between arbitrators ‘discretion and compliance with the princi­ple of natural justice, and also, based on the analyzed practice, suggests ways to minimize the risk of annul­ment of an arbitral award due to a violation of natural justice, namely the need for an established procedural protocol, which would provide certainty and eliminate problems arising in connection with the application of discretion by arbitration.
Refining Innovative Teaching Processes for Core Competencies Among Teachers in Vocational Universities: An Exploratory Mixed-Method Approach Informed by China's Reform Policy
Authors: Khan Muhammad Shahid , Ma Wenjing , Kakhai Kuncharee
Published: May 2024

Objective: This study aims to explore stakeholders' perspectives on the "1+X" certificate policy and its impact on innovative teaching methods to enhance instructors' core abilities at vocational colleges. It also aims to develop a management model for innovation processes based on this policy and instructors' essential skills.
 
Theoretical Framework: The project involves key stakeholders, including executives, teachers, and students. Consequently, this study commences with an exploration of the policy implementation process, drawing upon the practical experiences of these key stakeholders. Subsequently, it seeks to evaluate the proficiency levels of university teachers. Lastly, it endeavors to examine the relationship between the key factors of the innovative management process and teachers' competencies.
 
Method: Using a sequential exploratory mixed-method approach, qualitative data was collected from vocational college administrators, industrial managers, and certified instructors in Yunnan and Chongqing in 2023. A purposive sample of 30 individuals was analyzed using data from institutional reports, interviews, and focus groups, with thematic analysis for interpretation.
 
Results and Discussion: Qualitative findings identified three key factors affecting the management of innovative teaching processes and teachers' core competencies: policy implementation, training, and knowledge transfer. Based on these insights, the PTKT model was proposed and empirically tested with PLS-SEM. Results showed that knowledge transfer plays a mediating role between policy implementation and teacher core competencies, as well as between training and teacher core competencies, with all hypotheses supported.
 
Research Implications: The study provides dual recommendations. For innovation management, it suggests administrators and HR managers focus on continuous skill development before, during, and after training, emphasizing aspects such as recruitment, selection, fostering a supportive work environment, and enhancing knowledge transfer. For future research, it proposes adopting action research methodologies, customizing courses, and engaging in project-based training and R&D activities to facilitate mutual learning.
Delivering Strategic Values in the Tourism Industry: What Roles do Effective Planning Plays?
Authors: Orishede Felix , Ashibogwu Nze Kingsley , Igemohia Mohammed , Akpolo Rowland Bodiseowei
Published: May 2024

Purpose of Study: This study evaluated the roles effective planning plays in delivering strategic values in the Nigerian tourism industry. 
 
Method: Cross-sectional survey design was used and questionnaire was administered to three hundred and ninety-three (393) employees of selected tourism firms. The study employed three (3) dimensions to measure effective planning – plan-flexibility, plan-comprehensiveness and implementation-flexibility. Data obtained in the survey were analyzed using descriptive, post-estimation and inferential statistical techniques
 
Results and Conclusion: Results indicated that dimensions to measure effective planning have positive and significant link with strategic value.  
 
Implication of the Research: Impliedly, for tourism firms to be able to deliver strategic values, they should be flexible and comprehensive in the planning phase so as to enhance goals realization.
 
Originality/Value: Consequent upon the above, management of tourism firms should focus on improved measures aimed at delivering strategic values via effective planning, which is vital for the survival and sustainability of the tourism industry.  In addition, tourism firms should adopt, apply and implement effective plans to maximize the use of resources so as to achieve corporate objectives.
Perception of University Students on The Use of Artificial Intelligence (AI) Tools For The Development of Autonomous Learning
Authors: Quinde Gertrudis Amarilis Laínez , Muñoz Mónica Yiomar Tumbaco , Suárez Jessenia Margarita Ricardo , Villarreal Ruth Esther Peñafiel , Vélez Wilson Alexander Zambrano , Laínez Andrea Annabella Del Pezo
Published: May 2024

Objective: To explore the perception of university students on the use of Artificial Intelligence (AI) tools for the development of autonomous learning.
 
Theoretical Framework: The research is based on Technological Acceptance Theory and Constructivism, focusing on the perception of AI in autonomous learning of university students.
 
Method: Quantitative approach with a descriptive scope, the sample consisted of 665 students enrolled in the Faculty of Education Sciences and Languages (FCEI) of the Peninsula de Santa Elena State University (UPSE)-Ecuador; in the collection of information, the Questionnaire of Perception on the Use of Artificial Intelligence for Autonomous Learning was designed based on 4 dimensions of both variables, and the statistical program SPSS version 29 was used for data processing.
 
Results and Discussion: The results indicate that students show a favorable perception towards the use of AI tools for the autonomous learning process, however, although AI is recognized as a potential tool in university environments, there are still challenges to be overcome.
 
Research Implications: The study has practical implications for strengthening in students the digital competencies needed to effectively use AI tools in their autonomous learning.
 
Originality/Value: The research provides data on the perception of AI tools among university students, offering a starting point for future technology integration strategies in universities.
Developing approaches to the sustainability assurance
Authors: MALINOVSKAYA Natal'ya V.
Published: May 2024

Subject. This article discusses the approaches to assurance of sustainability information disclosed in various types of corporate reporting.
Objectives. The article aims to assess the prospects for enhancing trust and confidence in sustainability information due to issuing the proposed Exposure Draft International Standard on Sustainability Assurance (ISSA) 5000, General Requirements for Sustainability Assurance Engagements.
Methods. For the study, I used analysis, synthesis, comparison, generalization, and abstraction.
Results. Based on the study of the international practices of disclosure and confirmation of information in the field of sustainable development and consideration of the essence of the proposed Exposure Draft International Standard on Sustainability Assurance (ISSA) 5000, General Requirements for Sustainability Assurance Engagements, the article assesses the prospects for applying this Standard in Russian practice.
Conclusions. The requirements of the proposed Exposure Draft of the first profession-specific standard, which lays the foundation for the development of the ISSA-series standards system to express a certain degree of confidence by practitioners regarding the reliability of information on various aspects of sustainable development generated in accordance with a particular reporting system, develop a methodology for confirming information on sustainable development. The Standard can be directly applied or become the basis for the development of Russian standards for confirming information in the field of sustainable development presented both in the sustainability report and in other types of corporate reporting other than financial statements. The article contributes to improving awareness of all stakeholders about trends in the field of verification of information in the field of sustainable development.
PENERAPAN MODEL PROJECT BASED LEARNING UNTUK MENINGKATKAN HASIL BELAJAR PESERTA DIDIK KELAS VII
Authors: Sahid Muhammad Rifky Haekal , Arisnawati Arisnawati , Saparuddin Saparuddin
Published: May 2024

Model Pembelajaran berbasis proyek (PJBL) adalah model pembelajaran memiliki tahapan bermakna untuk mengembangkan kognitif dan pemikiran mendalam peserta didik untuk menentukan tujuan, mencari informasi, dan menuntaskan proyek. Berdasarkan pengamatan awal yang telah dilakukan di UPT SMPN 1 Suppa, ditemukan hasil pembelajaran peserta didik termasuk ke dalam kategori cukup dengan menggunakan metode ceramah. Tujuan penelitian ini untuk mendeskripsikan hasil pembelajaran peserta didik melalui model pembelajaran berbasis proyek. Jenis penelitian yang digunakan yaitu penelitian tindakan kelas yang terdiri dari 3 siklus dengan menggunakan model penelitian campuran. Setiap siklus terdiri dari 4 tahapan yaitu perencanaan, pelaksanaan, pengamatan, dan refleksi. Subjek penelitian ini adalah peserta didik kelas VII-A sebanyak 32 orang. Terjadi peningkatan persentase keaktifan belajar dan rata-rata hasil belajar peserta didik dengan penerapan model pembelajaran berbasis proyek.
Balancing Rapid Innovation and Sustainable Practices in Corporate Strategies
Authors: Aarav Mittal
Published: May 2024

This paper investigates the critical balance between rapid innovation and sustainable practices in corporate strategies, addressing the pressing question of whether these objectives can coexist without compromising each other. An extensive review of existing literature identifies a gap in understanding the synergistic coexistence of innovation and sustainability in corporate settings. The study uses a qualitative methodology to analyze data from interviews, surveys, and corporate documents to gain insights into current practices and challenges in merging innovation with sustainable strategies. Central to this research is the development of a new model which proposes a balanced approach to innovation and sustainability. This model is scrutinized through various case studies, testing its viability and highlighting its adaptability in different corporate scenarios. The paper critically evaluates the model, discussing its implications for business leaders and policy-makers, and identifies potential implementation challenges, setting the stage for future research to refine the model further. This study makes a significant contribution to corporate strategy discourse, offering a nuanced framework for businesses to navigate modern market complexities while adhering to sustainable principles, thus bridging a crucial gap in both academic research and practical business applications.
Effects of Protuberances on Surface Loads on the Vega-C Launch Vehicle
Authors: Leopardi Mirko , Paciorri Renato , Assonitis Alessia , Neri Agostino , Barbagallo Daniele
Published: May 2024

The need to meet the demands of the aerospace market in terms of payload capability, mission flexibility, and cost reduction has led the European Space Agency to develop Vega-C as an evolution of the original Vega launcher. The design of a modern launch vehicle like the Vega-C requires accurate evaluation of the thermal and mechanical loads on its surface under conditions as close as possible to real flight conditions. Despite its apparently simple aeroshape, the Vega-C surface is characterized by the presence of antennas, wiring ducts, flanges, and retrorockets. These protuberances interact with the external supersonic stream during the launcher’s flight, giving rise to locally complex flows that can impose stresses on the launcher structure through the generation of severe mechanical and thermal loads. The present work focuses on an in-depth aerothermal analysis of Vega-C protuberances under specific flight conditions. Numerical computations are carried out using the commercial solver [Formula: see text] on multiblock structured Chimera grids to assess which protuberances are subject to the most severe surface loads. Particular emphasis is placed on the role of boundary-layer thickness in the heat flux and pressure peaks that occur on the protuberances.
Microscale Thermal–Structural Modeling for Carbon Fibers Subjected to a Hypersonic Boundary Layer
Authors: Fu Rui , Martin Alexandre , Ramjatan Sahadeo , Kroells Michael , Schwartzentruber Thomas E.
Published: May 2024

With regard to the thermal protection system, the thermal–structural responses of modern ablative materials are of primary importance in many aspects, including material selection and sizing. Due to the intricate nature of their porous structure and complicated thermal conditions they are subjected to, ablative materials may exhibit unexpected behavior, which can potentially lead to material failure. In this study, two solvers—a direct simulation Monte Carlo solver and a finite-volume-based material response solver—are coupled together to predict the microscale thermal–structural performance of a thermal protection system material like phenolic impregnated carbon ablator. In this approach, individual fibers are modeled at the microscale, which provides valuable knowledge of porous media behavior. Nonuniform boundary conditions, including the heat flux and external force, are captured by the direct simulation Monte Carlo solver, and the detailed thermal and structural performance of the fiber is captured by the material response solver. The results show that individual fibers do not fail based on the temperature gradient and applied aerodynamic forces. However, it is shown that the attachment points of the fibers are the most vulnerable. This vulnerability can potentially lead to a breakdown of the binders, which would separate fibers and cause material failure.
Urban Air Mobility Profitability and Operational Sensitivity to Battery and Charging Technology
Authors: Garbo Andrea , Kotwicz Herniczek Mark T. , German Brian J.
Published: May 2024

Designs for electric vertical takeoff and landing (VTOL) aircraft deviate from traditional aircraft designs and include a wide variety of different configurations. Significant uncertainty also exists regarding the status of future battery technology, including energy density and charge rates. This paper presents a simple analytic model to estimate the profitability of an urban air mobility electric VTOL aircraft for a variety of vehicle configurations, battery technology parameters, and economic factors. Five main elements are considered by the framework: aircraft performance, battery technology, mission profile, mission economics, and electrical grid parameters. A sensitivity analysis is provided, comparing the operational performance and profitability of three electric VTOL concepts (lift plus cruise, quadcopter, and side by side), with respect to electrical grid and battery technology factors. The takeoff weight to maximize the number of completed routes or the overall profitability is also examined. Interestingly, results show that these two values do not coincide across the entire design space due to the nonlinearity of the battery life cycle with respect to the depth of discharge, which strongly affects battery replacement cost.
Modular Approach for Online Vertical Obstacle Detection
Authors: Flanigen Paul , Atkins Ella , Sarter Nadine
Published: May 2024

Poles, towers, and other vertical structures are a significant hazard to low-altitude flight operations. Three-dimensional sensors have the ability to perceive these objects; however, detection is hindered by the overwhelming preponderance of returns from other surfaces. This paper first evaluates existing approaches to finding vertical structures. Then the paper proposes a fast, modular process that efficiently removes extraneous points and automatically distills remaining data to find significant vertical structures with application to dense and sparse datasets. We apply our approach to the analysis of 200 million LiDAR points from a variety of real-world scenes. With our algorithm, the average density of identified pole returns for communication towers increases from 0.1% to over 60%. Finding other vertical structures is more difficult, but prevalence generally increases for these objects also.
Analysis of different modiҥcations of the CABARET scheme applied for approximation of the system of gas-dynamic equations
Authors: Колотилов В.А. , Остапенко В.В.
Published: May 2024

На основе метода квазиинвариантов построены различные модификации схемы CABARET, аппроксимирующие систему уравнений газовой динамики неизоэнтропических течений. Проведен сравнительный анализ точности этих модификаций при расчете трех различных задач Римана (в частности, задач Сода и Лакса) о распаде начального разрыва в политропном газе. Показано, что некоторые модификации схемы CABARET могут иметь существенные преимущества по сравнению с другими модификациями этой схемы относительно различных критериев, связанных с оптимальной локализацией сильных и слабых разрывов точного решения.

In this paper, we construct various modifications of the CABARET scheme that approximate the system of nonisentropic gas dynamics equations. The construction of these modifications relies on representation of conservation laws using various non-divergent forms and using the method of quasi-invariants. Each family of these invariants corresponds to its own modiҥcation of the CABARET scheme. The algorithm of the resulting CABARET scheme is given for the case when in the calculated exact solution the characteristics of one family are unidirectional, i. e. velocity distribution of these characteristics does not change sign. A comparative analysis for the accuracy of these modiҥcations was carried out when calculating the Sod problem on the attenuation of an initial discontinuity in a polytropic gas. Based on this analysis, a modification was chosen that most accurately localizes strong and weak discontinuities in the exact solution and has the smallest integral imbalance and the best order of convergence. Further, this modification of the CABARET scheme was compared with the best modification obtained from the previous work on various test problems (including the Lax problem) without changing the sign of the rate characteristics. The given complex analysis has shown that the new modification has better convergence compared to the modification from the previous work. Also, using the example of the Riemann problem of two divergent strong discontinuities, it was shown that it is impossible to correctly determine the order of local convergence of the numerical solution to the exact one in zones of constant ѕows located in the areas of inѕuence of shock waves in the considered modifications of the CABARET scheme.
Analysis of the change in molecular complexity of reaction products in process development activities at AstraZeneca over time.
Authors: Karageorgis George , Douglas James , Howell Gareth
Published: May 2024

The assessment of molecular complexity of active pharmaceutical ingredients (APIs) can help guide decisions within drug development, for example by correlation to sustainability targets, project resource requirements and predicted development and manufacturing timelines. However, such quantifications are limited by the challenge of defining complexity itself, as well as the small sample size of API molecules making longer term comparisons challenging. We have used three complementary approaches to calculate the complexity of reaction products of more than 165 000 reaction entries across our process development electronic laboratory notebooks. Importantly, this covers both intermediates, APIs, and other molecules requiring synthesis, thus attempts to provide an analysis of reaction products from all out synthetic chemistry activities. This information facilitated the investigation of changes in the mean values of different measures of molecular complexity per year between 2007-2020. We discuss the insights these quantifications reveal, and how this analysis may be of more general use in understanding the diversity of the molecules in our process development portfolio.
Universal Fragmentation Model for Tandem Mass Spectrometry Based Molecular Structural Elucidation
Authors: Paizs Bela , McGill Daniel , Simon Daniel , Takats Zoltan
Published: May 2024

Tandem mass spectrometry based structural elucidation is currently hampered by our limited understanding of fragmentation chemistry. Here we present the Universal Fragmentation Model (UFM) that is based on gas-phase ion chemistry and modelling and is capable of predicting high-quality fragmentation pathways, structures and energetics for general molecules. We demonstrate that UFM can interpret fragmentation chemistries dominated by complex rearrangements.