bluuebunny/crossref_metadata_2025 huggingface dataset:
Reorienting Islamic Education in Aceh: Paradigm and Strategies of Dayah Leaders in the Last Two Decades
Authors: Silahuddin Silahuddin , Wirianto Dicky , Riza Muhammad , Zalnur Muhammad
Published: March 2024

This article aims to shed light on Abu's (a Dayah leader in Aceh) paradigm and strategy in reorienting Islamic education inside the dayah educational framework in the last two decades. Even now, the Acehnese people's socio-religious life still accepts and includes the traditional Islamic educational institution known as dayah. However, Dayah must adapt to the dynamics of the changing times to ensure its graduates to participate more fully in society. The Dayah in West-South and East-North coasts of Aceh are the subjects of this qualitative study using a multi-site case study. They are Dayah Asasul Islamiyah in East Aceh, Dayah Madinatuddiniyah Nurul Huda in North Aceh, Dayah Madinatuddiniyah Darul 'Ulumiddin in Southwest Aceh, and Dayah Darussalam Labuhan Haji in South Aceh. The research data was gathered through purposeful-snowballing in-depth interviewing techniques with a variety of informants, including Abu as the dayah's leader. After that, the data is processed using interactive analytic procedures, which include condensing, presenting, and concluding. According to the study's findings, Aceh's dayah leaders' (Abu) paradigm has shifted from being exclusive and orthodox to being inclusive and flexible during the dayah's current period of development. The Mua'dalah programme and the higher education programme Ma'had Aly were both implemented as part of Abu's strategy to reorient Islamic education in dayah, as well as the training of human resources to become educators,
Character Education Through Islamic Behavior Improvement (IBI) Among the Tourism Community in West Sumatra
Authors: Samad Duski , Fajri Suryadi , Fadnia Annisa , Basri Wahidul
Published: March 2024

The development of halal tourism in West Sumatra is not proportional, due to a lack of service to tourists and the prevalence of negative social behaviors such as fraud, coercion, deception, and violence within the Minang society, often known as the 4P (Pakuak, Palak, Pakang, and Preman) behavior. This research aims to identify and educate on social behaviors of fraud, coercion, deception, and violence (Pakuak, Palak, Pakang, and Preman) that hinder the development of halal tourism in West Sumatra. The research findings indicate that first, the potential of halal tourism in West Sumatra, seen from religious, socio-cultural, natural potential, and stakeholder perspectives, strongly supports the development of halal tourism. Second, behaviors inhibiting the development of tourism communities, the 4P (Pakuak, Palak, Pakang, and Preman), are still prevalent amidst tourism activities in West Sumatra. Third, the Islamic Behavior Improvement (IBI) Tourism Model for tourism communities, tourists, and halal tourism stakeholders in West Sumatra, based on development results, has been tested for product validity. The validity level of the Islamic Behavior Improvement (IBI) Tourism Model book in terms of linguistic aspects, graphic design, and content feasibility is categorized as valid
Prospective Biology Teachers Perceptions of CT, ICT and TPACK Skills of during the Covid-19 Pandemic
Authors: Haviz M , Maris Ika Metiza , Nasrul Ervina
Published: March 2024

The Covid-19 pandemic has caused the learning process to change from face-to-face to online learning, without exception it has also occurred at Islamic Universities in Indonesia. Therefore, an online learning design with WhatsApp and Google Classroom was conduct to improved critical thinking (CT), information communication and technology (ICT), and technological pedagogical content knowledge (TPACK) of Prospective Biology Teachers in Islamic Universities (PBTs-IU). The aims of this study was to investigate prospective biology teacher’s perceptions of critical thinking, ICT and TPACK skills of during the Covid-19 pandemic. This study used quantitative descriptive method. Data were collected from 195 PBTs-IU, with of 19 males and 176 females. The quality of the instrument was achieved use confirmatory factor analysis (CFA) and alpha Cronbach tests. Then, paired sample correlations test was used to confirmed the hypothesis. The result of the study showed that there is different with CT, ICT and TPACK skill pre-course with post-course PBTs-IU. This finding also showed that score CT, ICT and TPACK of PBTs-IU for post-course is higher than pre-course. In concluded, there was a significant difference score for pre-course and post course about prospective biology teacher’s perceptions of CT, ICT and TPACK skills of during the Covid-19 pandemic.
Exploratory Sequential Study in the Implementation of Moodle-Based Flipped Classroom on Microteaching Class
Authors: Hasanah Fatmawati Nur
Published: March 2024

The Covid-19 pandemic has had a significant impact on the process of teaching and learning activities, one of which is social distancing. The flipped classroom learning method is a solution. The research objectives are: Knowing the process of implementing a moodle-based flipped classroom on microteaching class, Testing and describing the effect of implementing a moodle-based flipped classroom on microteaching on student achievement at IAIN Pekalongan, and Knowing student responses to the implementation of flipped classroom-based moodle. This research approach is mixed methods research. The sampling technique used in this research is purposive sampling. The results showed: 1) The implementation of the Moodle-based flipped classroom was carried out in several steps including: a) Making video tutorials about microteaching, b) Uploading videos on LMS moodle, c) Giving assignments, and d) When in class, the lecturer focuses on deepening the results of student assignments; 2) The effect of the flipped classroom implementation based on moodle based on the results of the t test that the calculated T value = [-44,338] or 44,338 and the significance value (2-tailed) is 0.000. So, there is an effect of the implementation of the Moodle-based flipped classroom in the microteaching class on student achievement at IAIN Pekalongan; 3) Student responses to: a) Microteaching class is included in the very positive category with an average of 89.17%, b) LMS moodle is included in the positive category with an average student response of 81.14%, and c) flipped classroom included in the positive category with an average student response of 83.70%.
The Use Of Augmented Reality (AR) Media To Enhance Student Motivation Learning
Authors: Pranahadi Tatag Yudha , Yani Indri , Nefosano Hedi
Published: March 2024

This study aims to increase student learning motivation using Augmented Reality (AR) media in the context of science learning. The research method used was collaborative classroom action research with research subjects consisting of XI MIPA 1 students at SMA Negeri 9 Bogor City. This study used learning motivation questionnaires as a measuring tool, with indicators that included confidence in self-ability, learning strategies that activate students, the meaning of science learning, achievement, and learning environment stimuli. Augmented Reality media was developed using the Halo AR application and applied to learning plant tissue structure and function material (KD 3.3 and 4.3) and animal tissue structure and function (KD 3.4 and 4.4). The results showed that the application of AR media in learning has succeeded in increasing the average learning motivation of students by 0.6 points, which increased from 2.41 to 3.01 in the 2nd action cycle. Based on the results of this collaborative classroom action research, it can be concluded that the use of Augmented Reality media is effective in increasing the learning motivation of students in class XI MIPA 1 at SMA Negeri 9 Kota Bogor. These results make an important contribution to developing innovative and more engaging learning strategies and can lay the foundation for developing broader technology-based education in the future.
Development of Learning Evaluation Instruments to Measure Creative Thinking Skills in The Reproductive System Concept
Authors: Mulyaningsih Yeni , Sukmawardani Yulia , Farida Ida , Nuryantini Ade Yeti , Hamidah Nur
Published: March 2024

The passage highlights the significance of creative thinking skills as an essential component of 21st-century education, alongside critical thinking, collaboration, and communication skills, collectively known as the 4Cs. The research aims to develop evaluation instruments to enhance students' creative thinking skills in reproductive system material. This topic involves contextual health content, requiring creative thinking to address it. The four indicators for creative thinking skills include fluency, flexibility, originality, and elaboration. The research and development (R&D) method is employed in this developmental study. The passage describes the process of creating 10 questions based on curriculum achievements, followed by validation by experts and a final stage of testing the questions on 40 ninth-grade science students at MAN 2 of Bandung. The results indicate that one question was accepted without revisions, six questions were accepted with revisions, and three questions were rejected. The reliability of the questions reached a score of 0.73, categorized as high, meaning the questions consistently provided similar measurement results. The students' answers to the evaluation questions require creative thinking skills, indicating that these questions effectively train those skills.
Spiritual and Communal Harmony Through Tarawangsa Traditional Art
Authors: Meylani Hilda , Hernawan Wawan
Published: March 2024

Purpose of the Study: This research explores how Tarawangsa Art, as a traditional cultural practice, plays a crucial role in strengthening communal identity and spirituality within the Budi Daya community in Cibedug, Lembang, West Java, Indonesia. Methodology: The study adopts a qualitative approach through participatory observation and in-depth interviews with community members, traditional leaders, and practitioners of Tarawangsa Art. Main Findings: The findings reveal that Tarawangsa Art not only acts as an expression of culture and spirituality but also as a crucial pillar in nurturing the community's identity and social cohesion. Integrating cultural expressions, spiritual values, and social dynamics forms a strong foundation for communal togetherness. Additionally, the community's adaptability and resilience in maintaining this tradition demonstrate cultural flexibility and robustness in the face of modernization. Applications of this Study: These findings provide insights for policymakers, educational practitioners, and cultural preservation institutions on the importance of supporting Tarawangsa Art preservation initiatives. Novelty/Originality: This study offers a new perspective on the role of Tarawangsa Art in maintaining communal identity and cohesion in the era of globalization. Through in-depth research on this cultural practice, the study highlights how spirituality and community are interwoven in creating unique cultural adaptations amidst social and economic changes.
PINOYLISH: THE AWARENESS AND NOTIONS OF UNIVERSITY STUDENTS IN NORTHERN LUZON
Authors: Quinto Joseph Bello
Published: March 2024

Pinoylish (Philippine English) has made a mark in the literature, although research on the perspectives of university students on Pinoylish is still scarce. As a result, a sequential explanatory mixed-methods design was undertaken to investigate the awareness and notions of 761 university students in Northern Luzon, Philippines. The results revealed that university students were not oblivious; however, they were marginally aware of the meanings, features, and uses of Pinoylish, implying that they do not possess a complete understanding of this variety of English. This study also unveiled that university students disagreed on negative notions while agreeing on positive notions of Pinoylish; this consensus can be interpreted as a positive attitude toward Pinoylish. Drawing on the findings, this study has implications for the pluricentric model of English Language Teaching (ELT) and suggests possible research trajectories.
TEACHERS’ BELIEFS ABOUT CLASSROOM LANGUAGE ASSESSMENT: COLLABORATIVE DISCUSSION AS A MEDIATIONAL SPACE
Authors: Tajeddin Zia , Aryaeian Nafeeseh
Published: March 2024

In recent years, numerous studies have been conducted on language teachers’ beliefs about language assessment; however, teachers’ collaborative discussion as a mediational tool has received scant attention. The present study aimed to investigate non-native language teachers’ beliefs about classroom language assessment regarding features of effective assessment, assessment of learners by teachers, peers, and themselves, benefits of assessment, informal assessment vs. formal assessment, and continuous assessment. Participants of the study were positioned in two collaborative discussion groups of novice and experienced teachers. Analysis of the data indicated that the teachers in each focus group held similar beliefs about most of the issues on classroom language assessment. The findings also demonstrated that the participants believed in the important role of classroom language assessment for different purposes, the utilization of both informal and formal assessment, and the utilization of continuous assessment as a fair mode of assessment. Furthermore, they believed that classroom language assessment should accurately assess what is taught in the course while focusing on all four language skills and sub-skills. Although they had positive attitudes toward teacher assessment and self-assessment, they were not in favor of peer assessment. The results of this study have implications for teacher education as adequate attention should be paid to teachers’ assessment beliefs due to their vital role in classroom assessment. Collaborative discussions can be enacted in teacher education to shape and reshape teachers' assessment beliefs.
INVESTIGATING LANGUAGE LEARNERS’ EMOTION REGULATION STRATEGIES VIA ACHIEVEMENT EMOTIONS IN LANGUAGE LEARNING CONTEXTS
Authors: Yildirim Cihan , Atay Derin
Published: March 2024

This study investigates the role of emotion regulation strategies on achievement emotions among tertiary-level English as a Foreign Language (EFL) students. It also explores the strategies employed by students to regulate these emotions. Employing a mixed-method sequential explanatory design, data was collected from forty-nine language learners attending prep-classes at the Department of Foreign Languages in a state university in Türkiye. The participants were categorized based on their utilization of cognitive reappraisal (CR), expressive suppression (ES), or a combination of both emotion regulation strategies (ERSs). They completed the Emotion Regulation Questionnaire and the Academic Emotions Questionnaire-Foreign Language Classroom to assess differences in achievement emotions among groups. Subsequently, the participants provided narratives regarding their perceptions and regulation of emotions. Thematic analysis using MAXQDA (Version 2020) was conducted. Results revealed significant variations in emotions among groups, with the ES group reporting lower levels of positive emotions and higher levels of negative emotions compared to others. The study underscores the importance of evaluating emotion regulation strategies to foster sustainable and enjoyable language learning environments.
GENDER, INTERESTS, AND WRITING STRATEGIES FOR ENGLISH STUDENTS AT PRIVATE HIGH SCHOOLS IN MALANG
Authors: Kaluge Teresa Angelina , Halimi Sisilia Setiawati
Published: March 2024

Despite its relevance with English language studies, not many
studies have been carried out on the effect of self-regulation on writing strategies in Indonesia. This research attempted to test the effect of individual differences, particularly gender and academic interest, on writing strategies based on self-regulation while taking into account the academic interest as a mediator. This research was conducted quantitatively using a correlational design. Data were obtained through online questionnaires distributed to 324 high school students who were studying English as a foreign language in Malang, Indonesia, and were processed using descriptive and inferential multivariate statistical analyses. The results showed that students’ usage of self-regulation-based writing strategies was classified as good, and gender differences were found in the use of the ‘planning’ strategy. However, after inputting variables of academic interest as covariates, gender differences were found in several writing strategies, such as self-initiating, planning, revising, text-generating, and acting on feedback. Theoretically, this research contributes to explaining gender differences in writing strategies in teaching and learning practices. Teachers are advised to consider gender differences when introducing writing strategies, either explicitly or implicitly.
Pulmonary arterial hypertension associated with type II Abernethy malformation in an adolescent: a case report
Authors: Miklashevich I. M. , Potrokhova E. A. , Morozov D. A. , Isaeva Yu. S.
Published: March 2024

The article provides a case of pulmonary arterial hypertension (PAH) associated with congenital extrahepatic portocaval shunt (CEPS), or Abernethy malformation, in a 17-year-old female patient. CEPS, which remained undiagnosed for a long time, manifested with severe encephalopathy at an early age. By the age of 6 years, it was complicated by PAH, and by the age of 9 years — by hepatic focal nodular hyperplasia. In the absence of timely surgical treatment and adequate therapy of CEPS, PAH progressed. Combined dual therapy for PAH, prescribed only at age 14, was ineffective. Despite the potential for clinical and functional improvement documented with combination triple therapy at 17 years of age, the patient continued to meet criteria for a high risk of adverse events, including mortality. Two months after the initiation of triple therapy for PAH, not achieving the target hemodynamic characteristics that would reduce operative and perioperative risks lead to an attempt of surgical treatment of CEPS, which led to the patient death in the early postoperative period. The description of this case report shows the difficulties of diagnosing a rare form of portopulmonary hypertension, the modern possibilities of drug therapy for a severe, potentially curable PAH in the early stages.
Acute phase mediator interleukin-6 and depression, work-related stress among young people (25-44 years old)
Authors: Gafarov V. V. , Gromova E. A. , Kashtanova E. V. , Gagulin I. V. , Polonskaya Y. V. , Gafarova A. V. , Ragino Yu. I.
Published: March 2024

Aim. To study the association of interleukin-6 (IL-6) levels with depression and stress at work among young people (25-44 years old) in Novosibirsk.

Material and methods. A random representative sample of young people (25-44 years old) in Novosibirsk was surveyed (975 people of both sexes; response rate, 71%) in 2013-2016 on the basis of Research Institute of Internal and Preventive Medicine — branch of the Institute of Cytology and Genetics (FWNR-2024-0002). All respondents signed informed consent. The World Health Organization MONICA-Psychosocial (MOPSY) scale was used to assess depression. Work-related stress was determined using the Karasek’s scale included in the program protocol. Quantitative determination of IL-6 was carried out in the laboratory of clinical biochemical and hormonal studies of therapeutic diseases of the Research Institute of Internal and Preventive Medicine — branch of the Institute of Cytology and Genetics.

Results. High level of depression among people of both sexes aged 25-44 years were 11,9% (among men — 8,5%, among women — 14,6%). The level of IL-6 was higher in individuals of both sexes with high level of depression — 1,33 [0,72;3,92] pg/ml than without depression — 1,16 [0,63;2,37] pg/ml) (p=0,002). In women with high level of depression, IL-6 value was higher (1,31 [0,72;3,86] pg/ml) than in those without depression (1 [0,53;2,03] pg/ml) or a moderate depression — 1,06 [0,58;2,14] pg/ml, (p=0,002). The level of IL-6 was higher among people of both sexes who had changed occupation within the last 12 months (1,4 [0,67;3,58] pg/ml) than among those who had no changes — 1,12 [0,63;2,04] pg/ml. Among participants who assessed their work responsibility as very high, the median levels of serum IL-6 were higher (1,7 [0,72;5,48] pg/ml), than among people with high work load (1,37 [0,58;5,18] pg/ml), as well as with a moderate (1,21 [0,63;2,5] pg/ml) and a slight (1,09 [0,63;1,98] pg/ml) work load.

Conclusion. A significantly higher level of IL-6 was found in depression and workplace stress among young people (25-44 years old) compared to people without depression and not experiencing workplace stress.
Migraine and endovascular closure of patent foramen ovale as a method of its treatment: a literature review
Authors: Tereshchenko A. S. , Merkulov E. V.
Published: March 2024

The literature review is devoted to the pathophysiology and clinical picture of migraine, targets of therapy and drugs used, and the connection between the pathogenesis of migraine with aura and patent foramen ovale is discussed. The results of clinical studies show a positive effect of endovascular patent foramen ovale closure on the course of migraine in the form of a decrease in the intensity, frequency of attacks and the number of headache-free days, as well as in some cases complete relief of the disease. Further study of the topic is promising, but requires careful study design and long-term follow-up of patients.
Diagnostic capabilities of instrumental methods for studying early cardiovascular adverse events in patients with lymphoproliferative disorders, quality and safety issues
Authors: Gimatdinova G. R. , Danilova O. E. , Davydkin I. L. , Dzhulakyan U. L. , Usenko E. V.
Published: March 2024

Aim. To study the possibilities of instrumental research methods in relation to the earliest detection of cardiovascular events in oncohematological patients receiving antitumor immunochemotherapy, as well as to deter­mine the requirements for documenting adverse events.

Material and methods. For the study, 63 patients were prospectively selected with a diagnosis of indolent non-Hodgkin lymphoma, who were indicated for antitumor immunochemotherapy. The patients were examined in three stages (before treatment, after 3 and 6 cycles of therapy) and divided into 2 groups by simple randomization. Cardiovascular toxicity in the main group of patients was assessed using 3D transthoracic echocardiography, analysis of left ventricular (LV) global longitudinal systolic strain and electrocardiography. The control group underwent a standard 3D echocardiography with analysis of LV ejection fraction. Clinical manifestations of cardiovascular events were assessed in all patients during treatment.

Results. According to the study, significant changes were obtained in LV ejection fraction on the third visit — a decrease from 58,9±1,07 to 48,1±0,73% (p<0,05) and from 57,7±1,13 to 49,4±0,58% (p<0,05) in patients of the main and control groups and global longitudinal LV strain from |21,1±1,18 to |14,0±1,61 |% (p<0,05) in patients of the main group. A mixed clinical phenotype of cardiovascular toxicity was the most common among all patients. An integrated approach to the early diagnosis of cardiovascular events makes it possible to identify a larger percentage of patients with subclinical myocardial dysfunction.

Conclusion. The long period of latent cardiovascular toxicity emphasizes the need for early verification of cardiovascular complications of antitumor therapy and expansion of the established paraclinical diagnostic minimum. In addition, taking into account the accumulated experience, recommendations are presented for the preparation of medical documentation in order to ensure the safety and quality of care.
Multidisciplinary approach in the differential diagnosis of left ventricular hypertrophy: a case report
Authors: Kudryavtseva M. M. , Ryzhkova E. V. , Kulikova O. V. , Mershina E. A. , Sinitsyn V. E. , Drapkina O. M. , Myasnikov R. P.
Published: March 2024

Left ventricular (LV) hypertrophy implies structural cardiac changes and, as a consequence, an increase in myocardial mass. Currently, there are many causes of this condition as follows: hypertension, aortic stenosis, hypertrophic cardiomyopathy, exercise, storage diseases (AL, ATTR amyloidosis, Danon disease, Anderson-­Fabry disease, etc.), metabolic disorders. Despite the currently existing diagnostic algorithms for LV hypertrophy, establishing a correct diagnosis can take a long time, and controversial research results can lead to false conclusions. This article presents a case report of a patient with LV hypertrophy, an atypical clinical performance and ambiguous paraclinical data, which led to certain diagnostic difficulties.
Endovascular rotational atherectomy for multivessel coronary calcification involving the main trunk of left coronary artery and the left anterior descending artery
Authors: Shukurov F. B. , Myasnikov R. P. , Kulikova O. V. , Nefedova D. A. , Feshchenko D. A. , Vasiliev D. K.
Published: March 2024

The revascularization strategy for severe calcification is one of the most pressing problems of modern percutaneous coronary interventions, since it is observed more and more often and significantly complicates traditional endovascular treatment. Currently, the method of choice for severe coronary calcification is rotational atherectomy, which allows modification of atheromatous mass with an increase in the vessel lumen to allow satisfactory balloon angioplasty and stenting. This article presents a case of a patient at very high cardiovascular risk with a burdened coronary history and severe clinical symptoms of exertional angina while receiving the optimal multiagent therapy. The examination revealed a multivessel coronary calcification, but the patient was denied coronary artery bypass grafting due to high perioperative risks. SYNTAX (Synergy between Percutaneous Coronary Intervention with TAXUS and Cardiac Surgery score) score I – 25,5 points, SYNTAX score II — 40,4% and 70,1% for percutaneous coronary intervention and coronary bypass surgery, respectively, European System for Cardiac Operative Risk Evaluation (EuroSCORE II) — 4,95%. Attempts at traditional percutaneous intervention were unsuccessful and the patient underwent endovascular rotational atherectomy followed by stenting of affected coronary segments, against the background of which there was an improvement in exercise tolerance with a decrease in angina class.
Problematic issues and development of classifications of the main parameters of quality and adherence to pharmacotherapy. Part II: physician adherence to clinical guidelines and official drug labels
Authors: Lukina Yu. V. , Kutishenko N. P. , Martsevich S. Yu. , Drapkina O. M.
Published: March 2024

The second publication is presented, devoted to the classification of the main parameters of quality and adherence to pharmacotherapy. Despite the fact that patients play a central role in the problem of medical adherence, the role of attending physicians is extremely significant both in prescribing/non-prescribing proven effective and safe therapy, and in influencing patient medical adherence. This led to the identification of a special commitment type — the physician adherence to the basic principles of rational treatment. Collection, analysis and systematization of information, as well as the related development of a classification of physician adherence/non-adherence were the aim of this review and analytical work. We searched data using keywords among Russian and English-­language sources. When compiling the classification, categories of adherence/non-adherence were identified in accordance with the implementation by physicians of the main provisions of clinical guidelines for long-term therapy for patients with non-communicable diseases (NCDs), as well as following official drug labels reflecting data on clinical pharmacology, the main side effects, drug-drug interactions. The classification of physician adherence/non-adherence to implementing the principles of rational treatment of patients with NCDs can be used in the development of electronic medical decision support systems for providing therapy with proven effectiveness and safety in specific clinical situations. In addition, on the basis of the developed classification, checklists for monitoring by healthcare specialists of the implementation of the rational treatment of patients with chronic NCDs should be created.
Religion among Robots: An If/When of Future Machine Intelligence
Authors: Geraci Robert M.
Published: March 2024

The study of religion arose as a tool of empire but also stands as a possible counterpoint to that colonizing project should technological progress ever lead to artificial general intelligence (AGI) in a machine. Not only will the existence of religion constitute a defining element in identifying AGI, but the lessons gleaned from analyzing religion among human communities can help guide the acceptance of machines into what Isaac Asimov called a C-Fe society, a community of human beings and intelligent machines. Drawing on the history of religion and twenty-first century inquiries into the religious implications of artificial intelligence, this article makes two fundamental contributions. First, it argues for the relevance, if not primacy, of religion in the recognition of AGI. Second, it reflects upon the need for humanity to overcome the self-serving techniques of imperial domination to welcome AGI, should such sophisticated technology arise.
National Solid Waste Policy (NSWP): Challenges and Advances after 10 Years of Implementation
Authors: Carvalho Helder Araujo de , Lopes João Batista , Carvalho Jose Natanael Fontenele de
Published: March 2024

A decade after the implementation of the National Solid Waste Policy (NSWP), municipalities continue to face challenges in implementation. This study aimed to assess the influence of the Municipal Integrated Solid Waste Management Plan (MISWMP) and proper waste disposal in the main cities of the country, in light of the National System of Information on Solid Waste Management (NSISWM). The analyzed data indicate slight advances related to what the National Solid Waste Policy (NSWP) proposes, stemming from difficulties in implementing the policy itself and/or making its instruments viable, especially in cities in the North and Northeast regions of Brazil. Practices such as improper waste disposal in open dumps or controlled landfills and incineration characterize the reality of Brazil, even a decade after the publication of the NSWP. Among the adopted strategies, waste recycling emerges as significant, with emphasis on composting and energy generation from biogas. There is a need for the integration of municipalities, states, and the Union to provide support for them to better exploit the potential in the generated waste, based on dominant technologies. It is also noteworthy the absence of updated data and cities' non-compliance with individual declarations in the NSISWM, regarding the provision of public solid waste management services, contradicting the policy itself and hindering the transparency of each municipality's data, making it difficult or even preventing monitoring by interested parties, civil society, and public and private entities.
Construction Management in the Amazon: Analysis of Performance Indicators and Impacts of COVID-19
Authors: Lopes Henrique Mendes da Rocha , Lordsleem Jr. Alberto Casado
Published: March 2024

Management failures in public construction projects result in significant resource wastage and delays in social development goals. This research aims to evaluate the management of contracts for public school construction projects using cost, schedule, and scope performance indicators, as well as investigate the influence of the characteristics of the Amazon region and the COVID-19 pandemic on project execution. The methodology involved document analysis of selected samples, describing the projects, geographical locations, contractual changes, and statistical correlation tests. Subsequently, the study surveyed the consequences of the COVID-19 pandemic on the analyzed projects, along with an analysis of performance indicators. The results revealed that all projects experienced cost increases, with an average percentage of 24.36%. Regarding schedule extensions, 92.30% of the projects underwent contractual changes, with an average increase in time of 142.19%. Scope changes were present in all projects, with an average modification percentage of 61.84%. It is believed that this study contributes to a critical analysis of the management of public engineering projects, enabling the identification of problems and improvement opportunities.
Urban occupation and surface runoff in cities: a study case in Piracicaba - SP
Authors: Granziera Leonardo da Silva , Carvalho Marcius Fabius Henriques de , Mota Lia Toledo Moreira , Pezzuto Cláudia Cotrim
Published: March 2024

This study analyzes how uncontrolled human occupation can negatively impact surface runoff conditions in urban environments. For this purpose, the study assesses the correlation between rainfall, Piracicaba River flow and the urban occupation growth regarding the incidence of floods in Piracicaba-SP. To address the research question: Is the increase in flooding caused by the increased population density? The following data was used: flow and precipitation data in the urban perimeter, obtained from the Piracicaba Water and Electricity Department; population and density data from five neighborhoods based on the "Google Earth Pro" software, covering sixteen years of study. The findings indicate that three districts experienced increased flooding, while two other well-established districts did not encounter significant changes in flood frequency.
Sustainable urban mobility: brief considerations on plans and practices in Latin American cities
Authors: Hidalgo Junior Jaime Massaguer , Araujo Eloisa Carvalho de
Published: March 2024

This article presents a research excerpt, located in the diverse set of studies on urban mobility, which highlights the importance that new technologies are acquiring in the Latin American context to mitigate the urban and environmental crisis. This debate seeks to expose plans and practices that are being implemented in Buenos Aires (Argentina); Belo Horizonte, Curitiba, Porto Alegre, Rio de Janeiro and São Paulo (Brazil); Santiago (Chile); Bogota (Colombia); San José (Costa Rica); Ciudad de Mexico, Guadalajara and Leon (Mexico); Lima (Peru); Montevideo (Uruguay); and Caracas (Venezuela). Based on a descriptive and exploratory approach of the research, the text shares reflections on the increasing impact of the incorporation of electric vehicles in public and individual transport. As the investigation advanced, the analysis sought to identify nuances within this theme, providing data that raise questions and project meanings in relation to the use of policies and infrastructures that are becoming reality in urban space. We hope that the reflections presented here can enrich the discussions on urban mobility as a means of mitigating environmental impacts, inspiring new research and practices.
A progress of Public-Private Partnerships in São Paulo's housing policy: challenges and conflicts in accessing decent housing
Authors: Moreira Rebecca Moura , Sígolo Leticia Moreira
Published: March 2024

The article aims to analyze the advancement of Public-Private Partnerships (PPPs) in housing for social interest in the central area of São Paulo. Based on a literature review and document research, it was found that such partnerships have presented limitations in providing housing for the low-income population, leading to conflicts and displacements in strategic areas of interest to the real estate market. This facilitates investor access to housing services and allows construction companies to use urban planning tools for economic exploitation and the mobilization of public lands in the city. Housing PPPs come in a context of weakened housing policies and increased private sector involvement in public services, driven by neoliberal thinking. This situation raises questions about the effectiveness of PPPs in meeting the needs of vulnerable populations living in inadequate or deficient housing. Financing difficulties for lower-income families and the displacements carried out for new housing developments have led to the relocation of local residents and workers, some of whom have been pushed into environmentally fragile and peripheral areas. As a result, there is a growing role of the private sector in decisions regarding the production of housing for social interest, which not only fails to extend its reach to the poorest groups but also creates problems related to urban density and urban sprawl. These issues need to be addressed to promote more just and sustainable cities in their social, environmental, and economic aspects, committed to reducing inequalities, socio-spatial segregation, and promoting democratic governance in cities.
The riverside way of life as a spatial attribute for the design practice of Amazonian housing
Authors: Guimarães Danielle Costa , Perdigão Ana Klaudia de Almeida Viana
Published: March 2024

The production of social housing in the Amazon does not differ from that found in other regions of Brazil, as the lack of adequacy in the projects is a historical and ongoing issue. This essay aims to raise questions about the inadequacy of housing projects for Amazonian cities. Reference is made in this investigation to the Amazonian imaginary, the origins of local ways of living, and the results of research projects already carried out by local researchers. Non-participant observations were also conducted in urban housing areas in the city of Belém. In this sense, it was observed that there are strong indications that the closer to the original way of life of the region's inhabitants, the riverside dwellers, the less likely transformations in housing promoted by the government are to occur. In the study reports, a typological language of riverside dwelling was identified in the modifications made to these state-owned housing units, serving as a mechanism of adaptation in housing. It has been noted that there is a mismatch between the user's needs and state action/production, and understanding the symbolic communications established between people and the built space may likely be beneficial in reducing the existing imbalance between user expectations and project quality in state offerings. Therefore, rethinking the ways of designing and producing architectural living spaces from the local user's perspective is a secure path for the sustainability of the project, encompassing the development of people and space vitality.
Effect of Crusher Arm Position and Surface Friction on the Mechanical Behaviour of a Crusher under Static Conditions
Authors: Yavuz Mustafa Murat
Published: March 2024

Crushers are utilized to break down or crush various components in industrial applications are subjected to high stresses. The crushing process is carried out by a crusher arm located on the crusher itself. The shape and length of the crusher arm influence the deformation on the arm and the efficiency of crushing process. During the crushing process, stress concentrations occur at the contact regions and especially at the connection location of the crusher arm and the drive shaft. This study examined the connection of the crusher arm at various positions on the shaft and explored variations in stress. Finite element analysis was used in the analyses. The used material is standard steel that behaved elastically. The stresses changed in a way that was not proportional to the movement of the tangential crusher arm towards the center of the shaft. The d=8 mm and d=24 mm locations are the most suitable places to move the crusher arm rather than the tangential position (d=40 mm). The highest stresses occurred at the corners where the shaft and crusher arm connected and formed a stress concentration. The friction effects on the contact surface were also examined and the increased friction coefficient slightly reduced the stress values of the crusher system, but increased the stresses on the crushed object. Only maximum stress levels that are observed at the surface of the beam are mainly considered. The results regarding the crusher arm are discussed in detail.
A Fabrication Method for Memristors with Graphene Top Electrodes and their Characterization
Authors: Onay Selin , Çaylan Ömer Refet , Büke Zarife Göknur , Köymen Itır
Published: March 2024

In recent years, there has been extensive research on the memristor, a non-volatile memory device that demonstrates effective emulation of biological synapses. The implementation of graphene as a top electrode in memristive switching systems presents an intriguing alternative to conventional materials such as Platinum. Graphene, as a carbon-derived material, possesses a remarkable area- to-volume ratio, biocompatibility, adsorption capabilities, and high electrical conductivity and thereby offers a promising avenue for the fabrication of biosensors with superior characteristics. This study reports a novel fabrication method of utilizing graphene as a top electrode in memristive devices. Characterization results of micrometric devices as well as larger memristive devices are also discussed. Larger devices show promising results to be used as memristive sensors. Microstructures have been fabricated successfully through developing a process flow and patterning graphene using photolithography and lift-off. E-beam evaporation and sputtering were used for depositing bottom metal electrodes and active layer respectively. Graphene was produced using the chemical vapor deposition (CVD) method and subsequently transferred using the fishing technique. Ultimately Pt/TiO2/TiOx/Graphene memristive devices were fabricated.
COVID-19 Diagnosis from Blood Gas Using Multivariate Linear Regression
Authors: Ayata Faruk , Seyyarer Ebubekir
Published: March 2024

With the impact of the COVID-19 outbreak, almost all scientists and nations began to show great interest in the subject for a long time. Studies in the field of outbreak, diagnosis and prevention are still ongoing. Issues such as methods developed to understand the spread mechanisms of the disease, prevention measures, vaccine and drug research are among the top priorities of the world agenda. The accuracy of the tests applied in the outbreak management has become extremely critical. In this study, it is aimed to obtain a function that finds the positive or negative COVID-19 test from the blood gas values of individuals by using Machine Learning methods to contribute to the outbreak management. Using the Multivariate Linear Regression (MLR) model, a linear function is obtained to represent the COVID-19 dataset taken from the Van province of Turkey. The data set obtained from Van Yüzüncü Yıl University Dursun Odabaş Medical Center consists of blood gas analysis samples (109 positive, 1146 negative) taken from individuals. It is thought that the linear function to be obtained by using these data will be an important method in determining the test results of individuals. Gradient Descent optimization methods are used to find the optimum values of the coefficients in the function to be obtained. In the study, the RMSProp optimization algorithm has a success rate of 58-91.23% in all measurement methods, and it is seen that it is much more successful than other optimization algorithms.
Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc-melting
Authors: Polat Gökhan , Kotan Hasan
Published: March 2024

The CoCrFeNi high entropy alloy (HEA) with face-centered cubic (FCC) crystal structure exhibits excellent ductility values even at cryogenic temperatures. However, since this HEA is relatively weak in strength, it may not meet the requirements of industrial applications in terms of strength-ductility trade-off. Therefore, the systematic addition of yttrium (Y) into CoCrFeNi HEA was investigated in the present study to increase the strength by solid solution and second phase strengthening. The HEAs were produced by vacuum arc melting, suction casting, and subsequent homogenization at 1150 °C for 24 h. The structural development of the HEAs was investigated by using the X-ray diffraction (XRD) technique revealing the formation of a solid solution phase and Ni3Y-type hexagonal structure (HS) second phase. The corresponding microstructure of the HEAs was examined under a scanning electron microscope (SEM) revealing the transformation of the microstructure from elongated grains to nearly equiaxed grains with the increase of Y content from 2 at. % to 4 at. %. The mechanical properties of the HEAs were investigated by using hardness and compression tests. The results exhibited a dramatic increase in the hardness from 143 (±2) HV to 335 (±7) HV and in the yield strength from 130 MPa to 1025 MPa with 4 at. % Y addition. Our study has revealed that the addition of rare earth Y element results in further development in the strength of the CoCrFeNi for potential engineering applications.
A Research: Investigation of Financial Applications with Blockchain Technology
Authors: Mohammed Mohammed Ali Mohammed , Türk Fuat
Published: March 2024

Cryptocurrencies have revolutionized the financial landscape by providing decentralized and anonymous payment systems, making them an intriguing subject for investors and researchers. This article delves into applying machine learning techniques for predicting cryptocurrency prices, mainly focusing on Bitcoin, Ethereum, and Binance Coin. Employing a range of machine learning models, including XGBoost, Linear Regression, and Gaussian Processes, the study aims to evaluate their predictive performance comprehensively. The results are promising; our models outperform existing studies, achieving impressively low RMSE values of 0.0040 for Bitcoin, 0.028 for Ethereum, and 0.027 for Binance Coin. These findings contribute valuable insights into the volatility and dynamics of cryptocurrency prices and underscore the potential of machine learning in shaping financial decision-making. Future directions include integrating advanced deep learning models, additional data sources, and ensemble methods to enhance prediction accuracy and robustness.
Size Dependent Compressive Strength of FIB Machined Single Crystal Manganese Pillars
Authors: Yılmaz Halil , Alkan Bülent , Budak Hasan Feyzi
Published: March 2024

The deformation behavior of single crystals of manganese pillars generated by focused ion beam (FIB), with diameters ranging from ~1 m to ~4.5 m, has been studied as a function of specimen size using micropillar compression at ambient temperature. The manganese pillars were machined from randomly chosen larger grains of polycrystalline metal. At ambient temperature, single crystals of manganese display chaotic slip planes emerging on the sample surface and brittle plastic deformation when the sample size is decreased to the micrometer scale. The manganese pillars reached very high flow stresses in the range of 4-5.6 GPa. The stress-strain curves of all tested manganese pillars demonstrated significant work hardening and smooth flow behavior, with strains up to 8-10%. After 10% strain, however, the flow stresses remained constant with no work hardening. As previously reported, the manganese pillars with undetermined orientation demonstrated a less pronounced size effect (-0.14) by the size effect exponent of BCC pillars.