bluuebunny/crossref_metadata_2025 huggingface dataset:
Navigating the complex landscape of cardiac metabolism in health and disease states
Authors: Tanajak Pongpan , Pasachan Tipthida
Published: April 2024

The intricate interplay between cardiovascular health and metabolic regulation forms a critical junction in understanding the complexities of heart-related conditions. Cardiometabolic regulation orchestrates a sophisticated network of factors governing energy utilization, substrate metabolism, and cellular processes within the cardiovascular system. Balancing these mechanisms is pivotal for optimal heart function, considering the substantial energy demands for both contractile and non-contractile activities. In a healthy heart, fatty acids (FAs) derived from FA β-oxidation contribute to approximately 70% of total energy production. However, emerging evidence sheds light on pathological changes in the heart that lead to profound metabolic alterations. These alterations involve a shift from predominant FA utilization to alternative substrates such as glucose and ketone bodies, accompanied by an increased reliance on FAs. This metabolic remodeling extends beyond substrate metabolism, encompassing changes in transporter expression, the activity of metabolic-related proteins, hormonal functions, and cardiac mitochondrial energetics. This comprehensive review article delves into the intricate web of cardiometabolic regulation, elucidating the multifaceted factors influencing cardiac metabolism across diverse states encompassing health, metabolic disorders, and heart diseases. Unraveling the molecular intricacies and interconnected pathways shaping cardiac metabolism in various physiological and pathological conditions provides critical insights into the adaptive mechanisms and dysregulations associated with heart-related conditions. Furthermore, the exploration of these regulatory mechanisms offers promising avenues for targeted therapeutic interventions and diagnostic strategies in cardiovascular medicine. Integrating multidisciplinary approaches and leveraging advanced technologies will facilitate a deeper understanding of cardiac metabolism, paving the way for innovative interventions to mitigate metabolic dysregulation and optimize cardiac health.
Protocol: A Randomized Parallel-Group Study of Women After Hallux Valgus Correction Surgery To Compare the Effects of “Core Foot System” Training vs. Traditional Rehabilitation Methods
Authors: Baran Mateusz , Kaczmarczyk Katarzyna
Published: April 2024

Purpose

The aim of this study is to compare the effects of Core Foot System (CFS) muscle training vs. traditional rehabilitation methods in female patients after a hallux valgus (HV) correction surgery.

Methods

The project will involve 60 women who have undergone a Scarf osteotomy to correct the deformity; participants will be divided into a control group and experimental group. The experimental group will follow the CFS protocol, whereas the control group will perform standard lower-limb exercises. Outcome measures will be collected twice: before the intervention and after eight weeks. Gait will be assessed using the Zebris FDM-S platform, which measures ground reaction forces during walking. The effects of the exercises on the cross-sectional area (CSA) of the abductor hallucis (AbH) muscle and the flexor digitorum brevis (FDB) muscle will be measured using ultrasound imaging. Foot architecture and arch height will be measured using a podoscope. In addition, the participants will complete the Short Form Health Survey (SF-36) and the American Orthopaedic Foot and Ankle Society (AOFAS) questionnaires for the first metatarsophalangeal (MTP) joint.

Results

Each participant will take part in 20 rehabilitation sessions over a period of eight weeks. Permission for weight-bearing on the limb, confirmed by visit to a specialist medical doctor, will be required before commencement of the rehabilitation, six weeks after the surgical procedure. The therapy will then continue for eight weeks.

Conclusions

We plan to develop and disseminate methodological materials on the proposed CFS method in the rehabilitation of patients after HV surgery among rehabilitation and orthopedic specialists.
Contribution of ligaments to intersegmental stability following type II odontoid fracture
Authors: Danka Dávid , Bojtár Imre
Published: April 2024

Purpose

Management of Anderson and D’Alonzo type II odontoid fractures continues to be controversial despite extensive research and increasing prevalence. To the authors' knowledge, the three odontoid ligaments, the alar ligament, the vertical portion of the cruciate ligament, and the transverse ligament, have not been biomechanically examined in type II odontoid fracture in spite of their potential significance in management. Therefore, this study aims to explore the intersegmental rotations of the craniovertebral junction following Anderson and D’Alonzo type II odontoid fracture and various combinations of ligament ruptures.

Methods

A validated C0-C7 cervical spine finite element model was employed to address the research objectives. The model was subjected to flexion-extension, lateral bending, and axial rotation under eight distinct injury conditions apart from the intact state. Prescribed rotations were applied to the top of the cranium while the C7 inferior surface was fixed. Rotation-moment data were retrieved from the model.

Results

Type II odontoid fracture caused mixed forms of instability considering flexion-extension. In lateral bending, the fracture alone did not have a significant effect, whereas the disruption of ligaments led to moderate rotation increments. Notably, in axial rotation, the fracture was the most crucial factor for stability.

Conclusions

Overall, type II odontoid fracture was found to be the main destabilizing element. Nonetheless, the vertical cruciate and the transverse ligament played a modest role in stabilization. The alar ligament provided minimal or no stability. Furthermore, instances were observed where both the vertical cruciate and the transverse ligament were necessary to prevent more instability.
Analyzing ligament prestrain in a multibody model of an ankle joint with random sampling
Authors: Ciszkiewicz Adam
Published: April 2024

Purpose

Modeling an ankle joint is a challenge, especially when considering complex phenomena such as prestrain. In the literature two main approaches to ligament prestrain can be found in ankle modeling. The first one assumes a strain-free configuration, effectively omitting the prestrain, while in the second one the slack lengths are obtained by shortening the ligament lengths in the rest configuration by 2%. These approaches were not compared directly in a controlled environment.

Methods

The aim of the study is to compare the two common approaches to ligament prestrain in ankle joint modeling. The approaches are compared on a collection of models generated by random sampling from a 6-link, 2-contact pair multibody model of the ankle. Random sampling includes perturbation of slack lengths, which makes the generated models prestrained and with known output characteristics. Their resemblance to the original model and the ankle joint makes them viable for using in a prestrain comparison. Each generated model is prestrain with the two approaches, then the outputs are compared to determine, which approach returns results closer to reality.

Results

The comparison was performed on 592 generated models. On average, the strain-free approach significantly outperformed the 2% shortening.

Conclusions

The method for testing prestrain proposed in the paper is an effectively tool for exploring the solution space of the model. The obtained results were interesting, but should be taken with caution as they are connected to the test condition. However, the method is general and could used with any other biomechanical model.
Evaluative Review: Differences in Knowledge and Perspectives on Generic Drugs Among Health and Non-Health Students
Authors: Cahyani Helza , Thanh Khue Le Thai , Faisal Umar Muhammad
Published: April 2024

Purpose of the study: This study aims to determine differences in the level of knowledge and perception about generic drugs among health and non-health students.

Methodology:This research uses a quantitative approach with a comparative type. The sample used in this research was 30 health students and 30 non-health students. Sample selection was carried out using random sampling techniques. The data collection method used was a questionnaire. The data analysis technique for this research uses the T-test.

Main Findings: Based on the T-test on the level of knowledge and perception about generic drugs in health and non-health students, the results obtained were significance values of 0.048 and 0.041 so it can be concluded that there are differences in the level of knowledge and perception about generic drugs in health and non-health students.

Novelty/Originality of this study: This research expands knowledge regarding generic drugs by examining how differences in educational background can influence students' views and understanding of generic drugs, making an important contribution in increasing knowledge about the use of generic drugs among the public.
The Influence of the School Environment on the Formation of Children's Character
Authors: Azis Abdul , Utami Sukma , Cronin Lyn , Sanie Ahmad H. Al
Published: April 2024

Purpose of the study: This study investigates the influence of the school environment on the formation of children’s character within the context of Civics subjects at  South Galesong District, Takalar Regency. By employing a descriptive qualitative research design, the study examines the interplay of various factors educators, students, canteens, classrooms, and playing fields in shaping character development. Two informants, selected for their knowledge and insights, contribute valuable perspectives to the research.

Methodology: The research design is descriptive and qualitative. The sample comprises class V students, and the study involves two informants who possess relevant knowledge regarding the influence of the school environment on character formation. Data collection methods include observation, documentation, and in-depth interviews. Qualitative analysis is applied to the collected data.

Main Findings: The study reveals nuanced insights into the Influence of the School Environment on the Formation of Children’s Character. Interviews with informants highlight both positive and negative influences. Educators play a crucial role, impacting character development through their teaching methods and interactions. Similarly, students’ behavior and peer dynamics significantly contribute to character formation. Surprisingly, even seemingly mundane aspects such as canteens and playing fields influence children’s values and attitudes.

Novelty/Originality of this study: This research contributes novel insights by emphasizing the pivotal role of the school environment in character formation. By providing practical recommendations, it aims to empower elementary school 77 Kanaeng and other educational institutions to cultivate resilient, compassionate, and morally grounded individuals—the bedrock of a thriving Indonesian society.
General Soedirman: History Learning Media Based on Digital Comics
Authors: Nugroho Alifi Nur Prasetia , Adeduntan Ronke Iyabo , Tariq Ateeq Ahmad
Published: April 2024

Purpose of the study: This research aims to address the low student interest and engagement in the history learning subjects of General Soedirman’s Guerrilla War by developing a digital comic-based history learning media and examining its effectiveness in enhancing the student learning motivation and achievement. Methodology: The research uses the Research and Development (R&D) method adapted from the ADDIE development design. The research subjects are 20 students in senior high school in Surakarta and Pakistan. The data collection technique is a test. Main Findings: The research data shows that the digital comic-based history learning media of General Soedirman’s Guerrilla War is effective and suitable for use. The validation by material experts shows that the learning media material has a very good quality with an average score of 89.6%. The media validation results show that the learning media is very good and suitable for application in the learning process with an average score of 84.6%. The results of the One-to-one Test, Small Group Test, and Field Test show that the learning media can improve the student learning motivation and achievement with an average score of 71.4%, 74.2%, and 78.8%, respectively, exceeding the expected outcome of 70%. Novelty/Originality of this study: The research novelty to develop a digital comic-based history learning media of General Soedirman’s Guerrilla War, which is a significant historical event in Indonesia. The research has implications for the improvement of the history curriculum and the student learning interest and engagement in history subjects.”
Evaluation: Media Booklet About Education on Prevention of Flour Albus for Teenage Girl
Authors: Cahaya Hidayati  , Ei Wah Phyu Thet  , Phonethipsavanh Nouanthong
Published: April 2024

Purpose of the study:  To develop booklet media that is effective and appropriate to the needs of young women in high schools, in terms of education on preventing vaginal discharge or Flour Albus, with the aim of increasing their knowledge, awareness and reproductive health behavior.

Methodology: The research method used is RnD with a 4D design. Defining needs was carried out through questionnaires to determine the needs of student. Design was created based on the results of the definition. Development is carried out by prelevant design and content. Distribution of booklets is direct distribution in schools.

Main Findings: The development of a media booklet about Flour Albus prevention education for young women in high schools was validated by experts with results that were suitable for use and had a significant positive impact in increasing students' knowledge about reproductive health problems. The main findings show that the use of the booklet has succeeded in increasing awareness of adolescent girls about the signs and symptoms of Flour Albus, as well as the preventive steps they can take.

Novelty/Originality of this study: The novelty of this research is lies in a holistic approach that pays attention to the special needs of adolescent girls in developing booklet media on the prevention of Flour Albus, integrating accurate information with a visually attractive design to increase engagement and understanding of adolescent girls at the high school level.
Barzanji Tradition In Muslim Society As An Manifestation of Islamic Values Faith In the Apostles For Discipline Character
Authors: Misbahuddin Misbahuddin , Espinosa III Severo
Published: April 2024

Purpose of the study: This research introduces a new approach to actualizing Barzanji cultural values in Islamic education, namely integrating the tradition of reading poetry and stories about the Prophet Muhammad SAW with the doctrine of faith in the apostles. This research aims to explore how islamic values are realized in the barzanji tradition.

Methodology: This research uses a qualitative approach with a naturalistic research design. Data collection techniques used in-depth interviews and participant observation. Respondents in this study were selected based on variations in roles and involvement in the Ngarot tradition using purposive sampling techniques. Data analysis will be carried out using the Miles and Huberman model.

Main Findings: This research also proposes suggestions and recommendations to improve and optimize this new approach, by emphasizing the importance and urgency of having a character of discipline and faith in the apostles for the success and happiness of Muslims in this world and the hereafter, based on the findings and implications. from this research. This research contributes to Islamic educational and cultural literature, by providing new perspectives and insights regarding the role and impact of Barzanji poetry and stories in increasing feelings of love, respect and gratitude for the Prophet Muhammad SAW and his predecessors, as well as asking for their intercession and blessings.

Novelty/Originality of this study: Students who do not have a disciplined character and do not strengthen the value of faith in the apostles can face short-term and long-term implications for their academic, personal and social lives. Therefore, it is important and urgent for students to have a disciplined character and strengthen the value of faith in the apostles, because this is very important for their success and happiness in this world and the hereafter. Students can achieve this by studying and practicing Islamic teachings and values, as well as by reading and listening to Barzanji poetry and stories that tell the life and virtues of the Prophet Muhammad (peace be upon him) and his predecessors. In this way, students can increase their feelings of love, respect and gratitude for the Prophet and his apostles, and ask for their intercession and blessings.
Study the Virtue of Patience: Lessons from Surah Al-Baqarah and Ali Imran in the Qur'an
Authors: Alwi M. Mustholiq , Husein Sayyid , Lohwithee Witsarut
Published: April 2024

Purpose of the study: The aim of this research is to determine the concept of patience education and the implementation of patience education in Q.S surah al-Baqarah verses 45, 153, 294.

Methodology: The research used by researchers is library research, this research involves collecting data related to the research object. Data analysis in the form of non-statistical analysis is suitable for descriptive data or textual data.

Main Findings: The findings in this research provide a little more knowledge about: The important education of patience which has been explained in Q.S surah al-Baqarah verses 45, 153, 294 and Ali Imran verses 125, 186, 200, apart from providing calm for life. Patience also has the function of solving problems well and not being hasty in carrying them out, so that people who implement this trait will find it easy to obey Allah and His Messenger.

Novelty/Originality of this study: This research carries originality in exploring the dimensions of patience education contained in the verses of the Qur'an, especially Surah Al-Baqarah verses 45, 153, and 249, as well as Ali Imran verses 125, 186, and 200. The focus of the research is on analysis in-depth understanding of the historical, linguistic context and interpretation of these verses, in order to reveal the nuances and wisdom contained in patience education. Thus, this research makes an important contribution in enriching the experience of Islamic religious education in madrasah and increasing its relevance to the demands of the times.
Celebrating the Prophet's Birthday: a Manifestation of the Character of Cooperation in Islamic Education
Authors: Anggita Sri Ayu , Mahboob Muhammad Awais , Hussein Sofian Sauri Bin
Published: April 2024

Purpose of the study: The aim of this research is to explore and reveal the values of Islamic education in the tradition of celebrating the Prophet's birthday in one of the villages in Indonesia, in several countries such as Iran and Pakistan by integrating qualitative and phenomenological approaches.

Methodology: This research uses qualitative methods with a phenomenological approach to explore the values of Islamic education in celebrating the Prophet's birthday in various regions in Indonesia, Iran and Pakistan. Data was collected through interviews, observation and document research, then analyzed through the stages of data reduction, data presentation, verification and drawing conclusions.

Main Findings: The research results highlight the differences and similarities in the traditions of the Prophet's birthday in Indonesia, Iran and Pakistan. In Indonesia, celebrations tend to reflect local cultural diversity and interfaith tolerance. In Iran, the Prophet's Birthday tradition has become an integral part of Muslim life with the added element of art and performance. Meanwhile in Pakistan, celebrations involve strong religious and social activities, strengthening the bonds of the Muslim community.

Novelty/Originality of this study: The novelty of this research lies in exploring the unique aspects of celebrating the birthday of the Prophet Muhammad SAW in madrasah in Indonesia, Iran and Pakistan. This study explores the values of Islamic education embedded in this tradition, contributing fresh insights into various cultural expressions and spiritual meanings in society.
Study of Islamic Character Education in the Deli Malay Community, Medan City: Case Study in the Deli Malay Community
Authors: Syahputra Muhammad Ilham , Shittu Sulayman Adeniran , Ain Ayesha Qurrat Ul
Published: April 2024

Purpose of the study: This research aims to determine the forms of Islamic character of the Deli Malay community, the formation of Islamic character education in the Deli Malay community, supporting factors for the formation of Islamic character in the Deli Malay community, and the obstacles faced in forming the Islamic character of the Deli Malay community in the Medan Maimun District environment.

Methodology: This research uses qualitative research with an ethnographic approach. Using observation, interview and document study data collection techniques. In analyzing the data, researchers used qualitative analysis techniques with data reduction steps, data presentation, and drawing conclusions.

Main Findings: Forms of Islamic character such as honesty, responsibility, tolerance and deliberation are strongly reflected in the Deli Malay community in Medan Maimun District. Character formation involves various methods such as teaching, example, habituation, motivation, and enforcing rules. Supporting factors include participation in madrasah or Islamic boarding schools, additional learning in muktabs, and the existence of Malay associations. However, there are also challenges in the process of forming Islamic character, such as the influence of globalization, the lack of Deli Malay culture being maintained, and the lack of figures who can be used as role models.

Novelty/Originality of this study: This research explores various methods and strategies used to integrate Islamic values ​​in character education in this community. It is hoped that the results of this research can make a significant contribution to the development of the Islamic character education curriculum in madrasah and provide guidance for educational policy makers to improve the quality of education.
Action in the Business Realm: Increasing Students' Entrepreneurial Spirit Through Production Unit-Based Teaching Factory Learning
Authors: Puspita Wahyu Nia , Huong Do Thuy , Poonseripipat Pattamanan
Published: April 2024

Purpose of the study: The aim of this research is to determine students' entrepreneurial spirit through production unit-based teaching factory learning.

Methodology: The type of research used in this research is quantitative with a quasi-experimental type. The number of samples taken was 60 students consisting of 30 students in class VIII A and 30 students in class VIII B. The data collection technique used included distributing questionnaires. The data analysis technique used in this research is comparative analysis or T-test between class data that implements production unit-based Teaching Factory learning and those that do not.

Main Findings: Based on the results of the T-test carried out, it was found that there was a difference in entrepreneurial spirit between the group who took part in learning at the teaching factory and the group who did not take part.

Novelty/Originality of this study: The novelty of this research is that it explores the transformative potential of production unit-based Teaching Factory learning in fostering a dynamic entrepreneurial spirit among students in the business realm.
Development of 3D Page Flip Physics E-Module with Sound Wave Material Based on Local Angklung Wisdom to Improve Integrated Science Process Skills
Authors: Nartiya Nartiya , Ilmiah Paridatul , Kedkaew Chittra , David Andrew
Published: April 2024

Purpose of the study: The research objective of developing the 3D Pageflip Physics E-Module with sound wave material based on local angklung wisdom is to increase students' understanding of physics concepts, integrate local cultural values as a learning context, and develop students' science process skills in an integrated manner.

Methodology: The research method used in this research is the research and development. Respondents the e-module consisted of 20 class XI Science. The data collection technique is a questionnaire. The data analysis technique uses descriptive statistical tests, expert validation tests to determine  feasibility  e-module. The research procedure is by conducting literature studies, planning, development, product validation, revision, small group testing.

Main Findings: The research results show that the physics e-module with West Java local wisdom on Sound Waves material has been successfully developed. Validation from experts results in positive assessment of the material content, media and language the module. Students' responses to small-scale test showed good level of acceptance, as well as an increase in their understanding of physics sound concepts. Thus, this e-module has potential to improve physics learning at the high school level, especially in the local context West Java.

Novelty/Originality of this study: The new thing here is integrating scientific skills with the use of the traditional angklung musical instrument. Embracing the local wisdom of angklung, this e-module offers dynamic and relevant learning, helping students understand physics concepts while comprehensively improving science process skills.
Increasing Activity and Science Learning Outcomes Vibrations, Waves and Sound Matter Through STAD Model
Authors: Atmoko Sigit Setyo , Kumala Dina Erawati , Gatsinzi Patrick , Usman Umar Shehu
Published: April 2024

Purpose of the study: In this research aims to determine increasing activity and science learning outcomes vibrations, waves and sound matter through student teams-achievment divisions (STAD) model.

Methodology: This research is Classroom Action Research implemented in three cycles, each cycle consisting of four stages namely planning, observation, observation and reflection. The subject of this research are students of class VIII B of Pabelan 2 Public Middle School consisting of 32 students of 16 male students and 16 female students. Research instruments include observation guide sheet, questions and documentation guidelines.

Main Findings: The results of the research show that the student teams achievement divisions (STAD) learning model can increase the activity and learning outcomes of Class VIII B students at State Middle Schools as evidenced by the increase in student learning completeness in Cycle I, 37.5% of students have completed learning, in Cycle II, 81% of students have completed learning and Cycle III 99% of students completed their studies.

Novelty/Originality of this study: This research contributes to research with a new foundation in understanding scientific concepts through an innovative approach using the student teams-achievement divisions (STAD) model. The unique findings highlight STAD's significant contribution in stimulating student engagement and increasing achievement of learning outcomes, bringing new nuances to science education research.
Improving Student Learning Outcomes in Light and Optical Instruments Using Team Teaching Methods with Crossword Puzzle Media
Authors: Nuning Tiastiti Cicilia , Fitria Ariyanti Wahyu , Alquaimi Munirah Mubarak , Chiong Wan Long
Published: April 2024

Purpose of the study: This research aims to determine the improvement in student learning outcomes regarding light and optical devices in class VIII junior high school through the team teaching method and crossword puzzle learning media.

Methodology: This research is a type of classroom action research. The subjects in this research were 30 students in class VIII A of Junior High School 2 Tuntang. Data collection techniques in this research used tests, observation, documentation. Data analysis in this research was carried out descriptively qualitatively and quantitatively.

Main Findings: The research results showed that cycle I produced 8 students with a percentage of 26.7% who completed the minimum completion criteria and there were 22 students who had not completed it with a percentage of 73.3%. Meanwhile, cycle II produced 26 students who completed the minimum completion criteria with a percentage of 86.7%, while there were 4 students who had not completed it with a percentage of 13.3%. This was marked by an increase in the results of classical completion criteria in cycle I which was only 26.7% to 86.7% in cycle II. The team teaching method used in combination with crossword media makes students interested in new ways of learning.

Novelty/Originality of this study: This study explores improving student learning outcomes in light and optical instruments using innovative methods, including team teaching and interactive crossword puzzles. The integration of crossword puzzles into teaching materials provides a unique and engaging learning experience, enhancing students' understanding of the subject.
Positive Impact of the Local Wisdom Module on the Canang Kayu Musical Instrument: Building the Character of Love for the Homeland
Authors: Wati Erna , Kigo Josephat , Inthaud Kullawat
Published: April 2024

Purpose of the study: The aim of this research is to determine the effect of using local wisdom-based modules on students' character of love for their homeland.

Methodology: This research adopts a quantitative methodological approach with a quasi-experimental type. This research uses junior high school students who study vibrations, waves and sound as research samples. This study applied two main data collection techniques, namely a love of the country character questionnaire and a response questionnaire. student. Meanwhile, the data analysis technique used in this research is by conducting assumption tests and simple linear regression tests.

Main Findings: Based on the results of the data analysis carried out, it was found that there was an influence of the use of local wisdom modules on the character of love for the country, namely an RSquare value of 0.616, which means that 61.6% of the local wisdom modules had an effect on the character of love for the country. There is an influence of the local wisdom module on the character of patriotism, this can be seen from the significance value < 0.05. The significance value obtained is 0.009.

Novelty/Originality of this study: The novelty of this research lies in a holistic approach that combines elements of music, culture and the environment in order to build students' character of love for their homeland through a physics learning module based on local wisdom of the Canang Kayu musical instrument. The findings of this research are a physics teaching strategy that is oriented towards ethnophysics.
Analyzing Observability of Fractional Dynamical Systems Employing ψ-Caputo Fractional Derivative
Authors: Selvam A. Panneer , Govindaraj V.
Published: April 2024

In this present article, we inquire into the observability of linear and nonlinear fractional dynamical systems in terms of ψ-Caputo fractional derivative. The observability Grammian matrix, which is positive definite and expressed by the Mittag-Leffler functions, is used to obtain the necessary and sufficient conditions of observability of linear fractional dynamical systems, and Banach’s fixed point theorem is used to get the sufficient conditions for the observability of nonlinear fractional systems. Three numerical examples are given to demonstrate the applicability of theoretical results for linear and nonlinear cases.
Solution of the Space Fractional Diffusion Equation Using Quadratic B-Splines and Collocation on Finite Elements
Authors: Adetona R. A. , Parumasur N. , Singh P.
Published: April 2024

In this paper, we consider the solution of the space fractional diffusion equation using orthogonal collocation on finite elements (OCFE) with quadratic B-spline basis functions. The main advantage of quadratic B-splines is that they have good interpolating properties and can be easily adapted for solving problems on non-uniform grids. The method is unconditionally stable and its convergence is also discussed. It is of order (3 − α) for 1 < α < 2. We present various linear and nonlinear examples. The solutions compared favourably with previous results in the literature.
Grundzüge des Abfall- und Kreislaufwirtschaftsrechts
Authors: Thärichen Holger
Published: April 2024

Diese Einführung in das Abfall- und Kreislaufwirtschaftsrecht bietet insbesondere Neu- und Seiteneinsteigern in der öffentlichen Verwaltung und in der Entsorgungswirtschaft einen leichten Zugang in die nicht immer einfache Materie. Zu diesem Zweck werden die Grundstrukturen des Abfallrechts und dessen wesentliche Begriffe und Pflichten übersichtlich und leicht nachvollziehbar dargestellt. Dabei wird besonderer Wert auf einen engen Praxisbezug unter Berücksichtigung der aktuellen Rechtsprechung gelegt.

In einem handlichen Band werden wertvolle Hilfsmittel für die tägliche Arbeit geboten:
- Übersichten und Schemata strukturieren und veranschaulichen den Stoff.
- Beispiele und Merksätze erleichtern das Verständnis und helfen, Fehler zu vermeiden.
- Auszüge aus Normtexten sind direkt in die Erläuterungen eingebunden.
A Survey of De Casteljau Algorithms and Regular Iterative Constructions of Bézier Curves with Control Mass Points
Authors: Garnier Lionel , Bécar Jean-Paul , Druoton Lucie
Published: April 2024

Drawing a curve on a computer actually involves approximating it by a set of segments. The De Casteljau algorithm allows to construct these piecewise linear curves which approximate polynomial Bézier curves using convex combinations. However, for rational Bézier curves, the construction no longer admits regular sampling. To solve this problem, we propose a generalization of the De Casteljau algorithm that addresses this issue and is applicable to Bézier curves with mass points (a weighted point or a vector) as control points and using a homographic parameter change dividing the interval [0, 1] into two equal-length intervals [0, 1/2] and [1/2 , 1] . If the initial Bézier curve is in standard form, we obtain two curves in standard form, unless the mass endpoint of the curve is a vector. This homographic parameter change also allows transforming curves defined over an interval [α, +∞], α ∈ R, into Bézier curves, which then enables the use of the De Casteljau algorithm. Some examples are given: three-quart of circle, semicircle and a branch of a hyperbola (degree 2), cubic curve on [0; +∞] and loop of a Descartes Folium (degree 3) and a loop of a Bernouilli Lemniscate (degree 4).
Numerische Modellierung eines tiefen Schlitzwandschachtes im überkonsolidierten Boden des Wiener Raums/Numerical modelling of a deep excavation in the overconsolidated soil of Vienna
Authors: Kostadinovic Aleksandar , Sigmund Julian , Adam Dietmar
Published: April 2024

Der Beitrag befasst sich mit der numerischen Modellierung eines rund 33 m tiefen Schlitzwandschachtes im überkonsolidierten Boden des Wiener Raums. Bei dem Schacht handelt es sich um den Südschacht der sich derzeit im Bau befindlichen U-Bahn-Station Matzleinsdorfer Platz. Dabei werden unterschiedliche numerische 2D- und 3D-Berechnungsmodelle, basierend auf der Finiten-Elemente-Methode, einander gegenübergestellt. Hierbei werden elasto-plastische Materialmodelle mit isotroper Verfestigung – konkret das Hardening Soil Modell (mit und ohne small strain stiffness) – verwendet. Die Bodensteifigkeitsparameter des Hardening Soil Modells wurden dabei aus Labor- und Feldversuchen abgeleitet. Aufgrund der geringen hydraulischen Bodendurchlässigkeit wird zudem die Auswirkung verschiedener Drainagebedingungen (drainiert, undrainiert, Konsolidation) auf das Verformungsverhalten des Schachtes untersucht. Daraus ergeben sich insgesamt 24 unterschiedliche Berechnungsmodelle, welche den Ergebnissen der in-situ Messungen des realisierten Schachtes gegenübergestellt und dadurch validiert werden.
Trinkwasserinstallationen für Gebäude mit „besonderer Nutzung“
Authors: Kirchhoff Timo , Rickmann Lars , Mathys Werner , Bäcker Carsten , Rickmann Bernd
Published: April 2024

Häufiger als erwartet werden in Trinkwasserinstallationen Kontaminationen des kalten Trinkwassers mit Legionellen nachgewiesen 1). Diese Kontaminationen lassen sich fast immer auf zu hohe Temperaturen des Kaltwassers in Stagnationsphasen zurückführen. Insbesondere in Gebäuden mit besonderer Nutzung (Krankenhäuser, Pflegeheime sowie andere medizinische Einrichtungen) besteht dadurch eine erhöhte Infektionsgefährdung aufgrund möglicher immunsupprimierender Grunderkrankungen oder medikamentöser Therapien bei Patienten und Heimbewohnern. Probleme bereiten in erster Linie große Leitungssysteme mit ungenügendem Durchfluss 2).
Herstellung und Anwendungsgebiete gedruckter Textilelektronik für den Bausektor
Authors: Boich Robert T. , Müller Kai , Mock Jan
Published: April 2024

Der Klimawandel ist eine bedeutende Herausforderung. Hauptverursacher sind die Emissionen von Treibhausgasen in verschiedenen Sektoren. Nach Angaben des Bundesministeriums für Umwelt, Naturschutz, nukleare Sicherheit und Verbraucherschutz entfielen im Jahr 2022 30 Prozent der deutschen CO2-Emissionen auf den Bereich von Gebäuden und Sanierungen [1]. Innerhalb dieses Sektors macht die Raumheizung etwa 60 Prozent des Endenergieverbrauchs aus [2]. Eine verstärkte Elektrifizierung könnte hier zu einer deutlichen Reduzierung der CO2-Emissionen führen. Um strombetriebene Heizsysteme auch in textilen Architekturen einzusetzen, müssen die Heizelemente flexibel gestaltet werden. Durch die Beibehaltung des textilen Charakters können solche Heizsysteme beispielsweise im Membranbau zur Reduzierung von Schneelasten im Winter verwendet werden. Das Institut für Textiltechnik (ITA) der RWTH Aachen University führt gemeinsam mit der Seybold Technischen Konfektionen GmbH & Co. KG in einem Forschungsprojekt Untersuchungen zur Herstellung flexibler Infrarot-Heizsysteme durch.
Vehicle-to-Grid in Europa
Authors: Hensel-Roth Tilmann , Dilekci Alpaslan
Published: April 2024

Ungesteuertes Laden einer großen Anzahl von Elektrofahrzeugen würde erhebliche Investitionen erfordern, um die Stromnetz-Kapazität so zu erweitern, dass eine Überlastung des Netzes vermieden wird. Dagegen haben intelligente Ladetechnologien für E-Fahrzeugbatterien, wenn sie weit verbreitet sind, nicht nur das Potenzial, Probleme mit der Stromnetzkapazität zu vermeiden, sondern bieten auch die Möglichkeit, die Nachfrageflexibilität im Stromnetz zu verbessern, Systemkosten zu senken und Emissionen zu reduzieren.
Vendaje compresivo en pacientes amputado a nivel transtibial
Authors: Sánchez Keryann , Henríquez Maitte , Villarreal Manuel , Herrera Eduardo , Callender Efraín
Published: April 2024

Este artículo científico tuvo como objetivo conocer acerca del vendaje compresivo en pacientes amputados a nivel transtibial. Los materiales y métodos utilizados fueron revistas bibliográficas certificadas, artículos científicos gracias al internet. Se dio a conocer como uno de los resultados que los pacientes amputados a nivel transtibial tienen mejores pronósticos que otro tipo de amputaciones. El vendaje compresivo le da protección al muñón al tiempo que colabora en la reducción de su tamaño al facilitar la disminución del edema causado por la amputación.
Distrofia muscular de Duchenne
Authors: Villalaz Isabel , Ferdin Litabeth , Lara Daniela , Callender Efraín
Published: April 2024

La distrofia muscular de Duchenne es una de las miopatías hereditarias musculares esqueléticas, que provocan la invalidez en la primera década de vida y, luego, la muerte por fallos respiratorios o cardíacos. El gen responsable de la enfermedad se conoce como DMD y se localiza en el brazo corto del cromosoma X. Tras el análisis de los resultados obtenidos después de aplicada la metodología de laboratorio el feto resultó estar enfermo, y la familia optó por la interrupción del embarazo. frecuentes que existen. Se caracteriza por la degeneración de las fibras. Objetivo: dar a conocer la enfermedad y el tratamiento fisioterapéutico que se puede seguir para ayudar a mejorar y controlar dicha enfermedad. Métodos: Se realizó un estudio de tipo observacional y descriptivo, donde se revisaron las historias clínicas de pacientes con el diagnóstico de distrofia muscular de Duchenne, donde se describieron los aspectos clínicos y paraclínicos de la entidad. Resultados: El promedio de edad para el momento del diagnóstico fue de cinco años. Seis presentaron retardo del desarrollo psicomotor y la marcha se encontró alterada en siete pacientes siendo este el principal motivo de consulta junto a caídas frecuentes. Tres pacientes habían fallecido al final del período en estudio. Conclusiones: Se requiere de un tratamiento multidisciplinario para retrasar la evolución de la enfermedad, mientras no se disponga de un tratamiento curativo. Es necesario conocer los aspectos representativos de esta enfermedad para realizar su diagnóstico precoz.
Respuestas fisiológicas en pruebas físicas del equipo Avanzada Juvenil FC de fútbol de categoría adulta masculina en Panamá
Authors: Cedeño Jesús , Domínguez Miguel , Donoso Bertha , Espinoza Tatiana , González Yarisbel , Labrador Ericka , Linares Keithlin , Peña Dania , Sánchez Génesis , Tack Leony , Torres Anilegne , Iribarren Lourdes
Published: April 2024

Al pasar el tiempo, el fútbol ha evolucionado de manera significativa gracias a los avances científicos como es la fisiología del deporte, la cual nos ayuda a comprender el comportamiento de nuestro organismo frente a un esfuerzo o actividad física. El objetivo de esta investigación es establecer el rendimiento deportivo y las respuestas fisiológicas en el equipo Avanzada Juvenil FC de fútbol para poder comprender las condiciones físicas de un jugador dependiendo de su posición y su función a desempeñar, por medio de pruebas realizadas a los jugadores. Se le seleccionaron las pruebas físicas para conocer conocer las respuestas fisiológicas de los jugadores de fútbol, luego se procedió a aplicar a 14 futbolistas del equipo de Avanzada Juvenil FC de categoría adulta masculina, en donde se evaluó el equilibrio, la coordinación, la agilidad, la velocidad, la capacidad de esfuerzo máximo, los cambios de dirección, la capacidad aeróbica y anaeróbica a través de las pruebas y test como: el Test de coordinación y equilibrio, qel Test de flexibilidad, la Prueba de Flexión Profunda de tronco, el Test de múltiples Sprints, el Test de sprints únicos de 20-30 m, Test de agilidad illinois, el Test de 10x5 (test de velocidad), el Test de Kilómetro y el Test de Ruffir-Dickson. Es importante recordar que las respuestas fisiológicas en el fútbol indican intensidades tanto moderadas como altas, respuestas anaeróbicas elevadas e intervaladas, y la reducción en las reservas de glucógeno muscular, es decir, que las actividades relacionadas con el juego imponen un estrés fisiológico particular sobre cada jugador de forma individual.
Improving economic resilience in the Far North regions of Russia: The role of structural changes
Authors:   Southern Federal University, Rostov-on-Don, Russia, Chernova Olga A. , Mitrofanova Inna V. ,   Southern Scientific Centre, Russian Academy of Sciences, Rostov-on-Don, Russia,   Volgograd State University, Volgograd, Russia, Pleshakova Marina V. ,   Moscow City University, Moscow, Russia
Published: April 2024

Examining the relationship between structural transformations in the economy and sustainable development holds significant importance for the Far North regions, given their role in safeguarding Russia's energy security. This article aims to investigate the repercussions of structural transformations within the Far North regions' economy on their economic resilience. The underlying premise is that steering the course of structural changes in a regional economy can wield influence over the sustainability of its development. The research methodology is grounded in the fundamental principles of the theory of structural dynamics. Analytical tools, including descriptive statistics and correlation analysis, were employed to conduct the investigation. The findings revealed that the Gross Regional Product (GRP) and employment indicators were the most susceptible to structural changes in the economy of northern regions, serving as primary benchmarks for economic resilience. Notably, the construction sector, along with the service and trade sectors—traditionally reliable sources of employment during crises—played an important role in fortifying economic resilience. However, the study also identified an insignificant relationship between the growth rates of the main economic sectors and indicators of innovation activity. This led to the conclusion that the development of northern economies predominantly follows an inertial trajectory, with resilience manifesting itself in addressing challenges of survival rather than embracing modernization. The novelty of the research liesin the revelation that adaptive changes in the sectoral structure of the economy do not consistently enhance the sustainability of its development; instead, they are predominantly associated with addressing immediate issues related to socio-economic stability. Beyond structural factors, the way along either an inertial or innovative path of adaptive development is shaped by other influential factors. Identifying these factors is a promising avenue for future research.
Balancing the interests of external and internal beneficiaries in the context of incomplete contracts in a resource economy
Authors:   Institute of Economics of the Karelian Research Centre of the Russian Academy of Sciences, Petrozavodsk, Russia, Tolstoguzov Oleg V. ,   Institute of Economics and Law, Petrozavodsk State University, Petrozavodsk, Russia
Published: April 2024

This article examines the uncertainties arising from agent interactions in interregional resource-intensive markets, particularly those prevalent in northern regions, and explores factors undermining their effectiveness Given these circumstances, the study aims to establish an optimal balance of interests between external and internal beneficiaries by taking into account interests, as well as reducing transaction uncertainty by considering their interests and mitigating transaction uncertainty through the optimization of market regulators in the context of interregional resource-intensive markets typical of northern regions. The analysis reveals that the condition of a single market equilibrium is compromised due to the influence of exogenous factors and the endogenous formation of institutional mechanisms that coordinate agent actions amid uncertain collaborations. Contrary to the neoclassical approach, which focuses on competitive pricing without altering the market structure, an alternative perspective posits that spatial externalities induce endogenous mechanisms characteristic of Chamberlin-type market structures. The study expands the understanding of uncertainty causes within the theory of incomplete contracts, incorporating social system costs into transaction costs in line with the neo-institutional concept. This conceptual framework enables the exploration of spatial entities as meso-economic systems, with a specific emphasis on the organizational and geographical characteristics of northern territories. The research evaluates four institutional zones governing economic management practices in northern regions. Through competence enhancement and optimization of market regulator design, the study demonstrates the feasibility of achieving a balance of interests between external and internal beneficiaries by strengthening institutional capital, thereby reducing social system costs. The proposed system of organizational and institutional measures enhances local institutional practices within the existing institutional matrix without violating antimonopoly legislation, as its focus is on restoring competitive conditions and reducing the costs of operating the social system.