bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGEMBANGAN LEMBAR KERJA SISWA (LKS) DENGAN MODEL PEMBELAJARAN KOOPERATIF TIPE TEAM ASSISTED INDIVIDUALIZATION UNTUK MENINGKATKAN MINAT BELAJAR DAN HASIL BELAJAR SISWA
Authors: Bayo Ludgardis Gunu , Yusuf St Muthmainnah , Mahmud Nur R Adawiyah
Published: March 2023

This research aims to develop student worksheets with team assisted individualization (TAI) cooperative learning models in Pythagoras Theorem materials. This research aims to find out the increased interest in learning and student learning outcomes. The method used in this study uses research and development (R & D) method with ADDIE (Analysis, Design, Development, Implementation, Evaluatio) design. The data collection techniques used in this study are questionnaires, validation sheets and study results tests. Instruments used are device validation sheets, student response questionnaires, student learning interest questionnaires and student learning outcomes. The data analysis technique used is qualitative data consisting of advice and comments from experts and qualitative data judging by the analysis of validity, practicality and effectiveness. The results showed that, learning devices were declared very valid with the average assessment results from experts 4.15, the student response questionnaire reached 73.81% which is intended in the positive category so that the developed LKS is declared practical, the student learning interest questionnaire reached 70.33% that is in the positive category as well as the results of students who reach an average of 81.66% that exist in the complete category.
ANALISIS KEMAMPUAN LITERASI MATEMATIS SISWA KELAS VIII MTs NEGERI KUPANG
Authors: Ibrahim Syahriyati Jamila , Yusuf St Muthmainnah , Zulfikar Ryan Nizar
Published: March 2023

This research aims to find out the mathematical literacy skills of grade VIII students of MTs Kupang State School Year 2019/2020. This type of research is descriptive research with a qualitative approach. The subjects of the study were 30 students grade  MTs Kupang State School Year 2019/2020. The object of this research is the mathematical literacy ability of students grade  MTs Kupang State School Year 2019/2020. Data collection techniques with tests using essay tests. Instruments used in research are essay type tests, interviews and documentation. The data analysis techniques used are three, namely, data reduction, data presentation, and drawing conclusions. Test the validity of the data in this study using triangulation techniques. From the results of the study shows that the results of the calculation of the percentage of students who are able to reach KKM as much as 40% while students who do not reach KKM as much as 60%, thus it is concluded that the mathematical literacy ability of grade  MTs Kupang state is still low because in this class there are still many students who are weak on formulating and planning strategies in solving problems.
PENERAPAN MEDIA INTERAKTIF DALAM PEMBELAJARAN MATEMATIKA
Authors: Asril Rafik
Published: March 2023

This study aims to analyze the ability of teachers to develop interactive learning media and also to analyze the usefulness of interactive media in learning mathematics. The subjects of the study included two seventh grade mathematics teachers and six seventh grade students of SMP Muhammadiyah 08 Batu. The method used in this research is a descriptive field method with a case study approach. While the research instruments used include documentation; observations, and interviews. The results of this study indicate that mathematics teachers are able to develop interactive media, but the resulting media is still relatively simple. In addition, the results of this study also show that the use of interactive media in learning mathematics can provide benefits.
ANALISIS KESULITAN SISWA SMA DALAM MENJAWAB SOAL MATEMATIKA PEMINATAN
Authors: Harianto Hadi , Yakin Ainul
Published: March 2023

The purpose in the research to describe the troublewhich class student experienced by XI SMAN 1 Woha Bima in resolving the mathematical supplylimit material in particular.This type of research is a description qualitative study, the research inapril month SMAN 1 Woha Bima.  Subjek in the research is class student XI SMAN 1 Woha Bima which is comprised of 19 students. The instrument used in the research is tets using a 5 number essay for knowing the layout trouble student  and interview for know what cause trouble student. Based on data analysis and discussion it can be conclusion that (1) the study trouble in tets number 1a the presentation is as much (28,57%)  based on interview  that mots students had trouble with the concept of a mathematical operation wich would have to finish first (2) the study trouble in tets number 1a the presentation is as much (7,14%) based on interview that student trouble in number 1b because trouble in deciphering the number of degrees in algebra, (3) the study trouble in tets number 1a the presentation is as much (14,28%) from a student’s analysis of answers that the student’s trouble in answering the number 1c is consistent with the trouble experienced in number 1b, (4) the study trouble in tets number 1a the presentation is as much (50%) from a students analysis of answer that the student’s and interview the feeling student’s trouble in algebra forms, (5) ) the study trouble in tets number 1a the presentation is as much (7,14) from a student’s analysis and interview  trouble that what student experienced was two in describing the shape of algebra and the trouble in changing roots.
PENGEMBANGAN MEDIA PEMBELAJARAN MENGGUNAKAN SOFTWARE ADOBE FLASH PROFESIONAL CS8 PADA MATERI SEGI EMPAT
Authors: Ashari Ashar Jurang Penatas
Published: March 2023

Learning media is important in the learning process, however the use of learning media that is not appropriate to the needs of students will complicate the learning process. At SMPN 1 Mojowarno students are only asked to read textbook then they are given assigments via the whatsapp application. In addition, the rectangular material at the school only explained the formulas without ane explanation of how the formulas could be found, thus make the learning process less meaningfull The aims of this developmen is to produce learning media in the form of Adobe Flash Professioanal CS8 software that is valid, practical, and effective on rectangle material in online learning. The type of research used in this study was Research and Development by adopting the ADDIE development model. The stages carried out in this research are, Analysis, Design, Development, Implementation, and Evaluation. The result of material expert validation showed a percentage of 86,6% with very valid criteria, and the result of media expert validation showed a percentage of 88% with very valid citeria. The result of students response questionnaire showed a percentage of 84,7% in the practical category, and the individual learning outcomes test showed a average 80,9 and percentage of classical test 82,35% with effective category. So it can be concluded that the learningmedia that has been developed using Adobe Flash Professional software on rectangular material in online learning has met valid, practical and effective criteria.

Keywords: Adobe Flash Professional CS8, Rectangel, Online learning
ANALISIS KEMAMPUAN PEMODELAN MATEMATIS ANAK-ANAK DI KAMPUNG ADAT BOTI
Authors: Tanu Melkianus , Ralmugiz Uke , Yusuf St. Muthmainnah
Published: March 2023

Analysis of the Children’s Mathematical Modeling Ability in Boti Traditional Village, Kupang. Academic Year 2020/2021. Skripsi. Mathematics Education Study Program. Faculty of Teacher Training and Education.  University of Muhammadiyah Kupang.

This study aims to determine the mathematical modeling ability of children in the traditional village of Boti, which is very necessary in solving contextual problems completely because they do not understand the problem and do not able to convert the problem into a mathematical model. This research isqualitative research with a descriptive approach. The subjects of this study were 7 children in Boti traditional village. There were 3 interview test respondents who were selected based on the high, medium, and low ability categories. Data collection techniques used were data reduction, data presentation, and drawing conclusion. The validity of the data tested using a triangulation of data technique. Based on the results of 3 essay test items, it showed that the mathematical modeling ability has 3 categories, namely: 1 high-ability child, 4 moderately capable children, and 2 low-ability children.
Analisis Pemanfaatan Teknik Cognitive Behavioral Therapy (CBT) Terhadap Kecemasan Matematis Siswa
Authors: Wahyuningsih Dwi
Published: March 2023

Paper ini memaparkan hasil analisis terhadap pemanfaatan teknik cognitive behavioral therapy (CBT) terhadap kecemasan matematis siswa. Metode yang digunakan dalam penelitian ini yaitu penelitian kepustakaan (library research) dengan teknik deskriptif analitik yaitu dengan mengumpulkan data kemudian dari data tersebut disusun, dianalisis kemudian ditarik kesimpulan. Dari beberapa data yang telah dianalisis, diperoleh bahwa teknik cognitive behavioral therapy (CBT) bermanfaat positif dalam mengurangi tingkat kecemasan matematis siswa. Akar dari kecemasan pada siswa bermula dari adanya rasa takut akan suatu hal, dalam konteks penelitian ini yaitu matematika. Terdapat berbagai teknik yang digunakan oleh guru untuk memanfaatkan terapi kognitif-tingkah laku dengan jumlah sesi yang berbeda-beda. Dalam penggunaan teknik cognitive behavioral therapy (CBT) orang tua dan guru matematika berperan penting dalam keberhasilan untuk menurunkan kecemasan matematis siswa. Selain itu, CBT juga memberikan dorongan untuk mengembangkan perangkat pembelajaran atau konseling yang dapat digunakan dalam dunia Pendidikan.
POTENSI ALAT MUSIK BATAK TOBA SEBAGAI SUMBER BELAJAR MATEMATIKA DALAM MENGEMBANGKAN KEMAMPUAN KOMUNIKASI MATEMATIS
Authors: Harianto Hadi
Published: March 2023

This study aims to explore the potential of ethnomatematics in Simalungun and the potential for integration of ethnomatematics in learning. This research is a survey research. The study was conducted in Simalungun with the selection of objects carried out by purposive sampling. The collection methods used in this study are observation, documentation, and literature study. After the data is collected then it is analyzed qualitatively. The study results were also conducted to find out the potential integration of ethnomatematics in learning to improve students' mathematical communication skills. The results of research that have been carried out, the musical instruments Sarune Bolon, Hasapi, and Taganning are closely related to the concept of mathematical flat figure. Ethnomatematics has the potential to improve students' mathematical communication skills, if integrated with appropriate learning materials and models.
PENGEMBANGAN VIDEO PEMBELAJARAN MATERI GARIS DAN SUDUT DENGAN MODEL DISCOVERY LEARNING UNTUK MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA KELAS VII TAHUN AJARAN 2021/2022
Authors: Kasim Dahlia S. , Ralmugiz Uke , Aba Maria Martini
Published: March 2023

The aims of this research were to determine the appropriate, practicality, and effectiveness of learning video for lines materials and angles by using discovery learning model to improve mathematical problem-solving ability for seventh grade students. Method here was research and development using ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). Population was mathematic teachers and seventh grade students SMPK Sta. Maria Assumpta, Kupang. Sample was seventh grade students of A class. Trials was done to determine the practicality of learning video. Research instruments here was validation sheet, learning video, lesson plan, practicality sheet, questioner of study result test. the obtained data then analyzed its validity, practicality, and effectiveness. Results: validity scores, a) learning video: 3.45, b) lesson plan: 3.59, c) teacher respond questionary: 3.5, d) student respond questionary: 3.5. The average score for validity was 3.45 and the category was very valid. The learning video got good respond and the score was a) 3.45 for teacher respond questioner, b) 3.56 for student respond questioner. The average score of practicality was 3.55 and the category was very practical. The appropriate of learning video was obtained from the effectiveness of student KKM (70) and the average score of student learning outcome was 73.33%. From the data of validation result, analysis of questioner and student learning outcome show that the learning video for lines material and angles by using discovery learning model was very valid, very practical and effective.
Intuition, creativity and visualisation in the work of the performing artist in training / Intuição, Criatividade e Visualização no Trabalho do Artista da Cena
Authors: Mele Claudia
Published: March 2023

The text addresses the notions of creativity, intuition and visualisation in the work of the performing artist. These faculties can be stimulated through contemplative practices, such as meditation, for the development of a powerful, present and creative body. The author reports her lived experience in which the meditative practice evoked events that go beyond the scenic aspects, providing new perspectives for artistic work.O texto aborda as noções de criatividade, intuição e visualização, todas faculdades que podem ser estimuladas através de práticas contemplativas, como a meditação, no trabalho do artista da cena, para o desenvolvimento de um corpo potente, presente e criativo. A autora relata uma experiência vivenciada por si mesma onde a prática meditativa suscita acontecimentos que vão além dos aspectos cênicos, podendo proporcionar novas perspectivas para o trabalho artístico.
Gender representations in advertising narratives in the Republic of Serbia
Authors: Ocokoljić Marija
Published: March 2023

Perceptions of gender roles are a result of socialization processes happening under the influence of diverse cultural factors. One of the strongest shaping forces in that context are mass media, and within them, advertising. In the executed research it is treated as a domain actively participating in the creation of cultural gender normative. Key research question is focused on gender representations in advertising. An ad is treated as a cultural text transferring not only commercial, but also wider cultural meanings. Content analysis applied to the selected advertising content broadcasted in the Republic of Serbia showed that quantitatively larger representation and visibility of women does not necessarily mean their actual greater significance. Some traditional patterns are changing. Other however are persisting. In areas like family, household and children care, advertising practices are evolving. More content shows both genders working together (caring for children, preparing food etc.). Men are represented as more active participants of family life. On the other hand, traditional pattern of representing women in the context of the body, beauty, physique is not changing much. They are more frequently in decorative and passive roles which is a dimension of representation nonexistent with men.
The development and assessment of early cardinal-number concepts
Authors: Baroody Arthur J. , Mix Kelly S. , Kartal Gamze , Lai Meng-lung
Published: March 2023

Number-recognition tasks, such as the how-many task, involve set-to-word mapping, and number-creation tasks, such as the give-n task, entail word-to-set mapping. The present study involved comparing sixty 3-year-olds’ performance on the two tasks with collections of one to three items over three time points about 3 weeks apart. Inconsistent with the sparse evidence indicating equivalent task performance, an omnibus test indicated that success differed significantly by task (and set size but not by time). A follow-up analysis indicated that the hypothesis that success emerges first on the how-many task was, in general, significantly superior to the hypothesis of simultaneous development. It further indicated the how-many-first hypothesis was superior to a give-n-first hypothesis for sets of three. A theoretical implication is that set-to-word mapping appears to develop before word-to-set mapping, especially in the case of three. A methodological implication is that the give-n task may underestimate a key aspect of children’s cardinal understanding of small numbers. Another is that the traditional give-n task, which requires checking an initial response by one-to-one counting, confounds pre-counting and counting competencies.
The real preschoolers of Orange County: Early number learning in a diverse group of children
Authors: Sarnecka Barbara W. , Negen James , Scalise Nicole R. , Goldman Meghan C. , Rouder Jeffrey N.
Published: March 2023

The authors assessed a battery of number skills in a sample of over 500 preschoolers, including both monolingual and bilingual/multilingual learners from households at a range of socio-economic levels. Receptive vocabulary was measured in English for all children, and also in Spanish for those who spoke it. The first goal of the study was to describe entailment relations among numeracy skills by analyzing patterns of co-occurrence. Findings indicated that transitive and intransitive counting skills are jointly present when children show understanding of cardinality and that cardinality and knowledge of written number symbols are jointly present when children successfully use number lines. The study’s second goal was to describe relations between symbolic numeracy and language context (i.e., monolingual vs. bilingual contexts), separating these from well-documented socio-economic influences such as household income and parental education: Language context had only a modest effect on numeracy, with no differences detectable on most tasks. However, a difference did appear on the scaffolded number-line task, where bilingual learners performed slightly better than monolinguals. The third goal of the study was to find out whether symbolic number knowledge for one subset of children (Spanish/English bilingual learners from low-income households) differed when tested in their home language (Spanish) vs. their language of preschool instruction (English): Findings indicated that children performed as well or better in English than in Spanish for all measures, even when their receptive vocabulary scores in Spanish were higher than in English.
Reasoning about fraction and decimal magnitudes, reasoning proportionally, and mathematics achievement in Australia and the United States
Authors: Resnick Ilyse , Newcombe Nora , Goldwater Micah
Published: March 2023

There is strong evidence from research conducted in the United States that fraction magnitude understanding supports mathematics achievement. Unfortunately, there has been little research that examines if this relation is present across educational contexts with different approaches to teaching fractions. The current study compared fourth and sixth grade students from two countries which differ in their approach to teaching fractions: Australia and the United States. We gathered data on fraction and decimal magnitude understanding, proportional reasoning, and a standardized mathematics achievement test on whole number computation. Across both countries, reasoning about rational magnitude (either fraction or decimal) was predictive of whole number computation, supporting the central role of rational number learning. However, the precise relation varied, indicating that cross-national differences in rational number instruction can influence the nature of the relation between understanding fraction and decimal magnitude and mathematics achievement. The relation between proportional reasoning and whole number computation was fully mediated by rational magnitude understanding, suggesting that a key mechanism for how reasoning about rational magnitude supports mathematics achievement: proportional reasoning supports the development of an accurate spatial representation of magnitude that can be flexibly and proportionally scaled, which in turn supports children’s mathematics learning. Together, these findings support using measurement models and spatial scaling strategies when teaching fractions and decimals.
Are approximate number system representations numerical?
Authors: Pickering Jayne , Adelman James S. , Inglis Matthew
Published: March 2023

Previous research suggests that the Approximate Number System (ANS) allows people to approximate the cardinality of a set. This ability to discern numerical quantities may explain how meaning becomes associated with number symbols. However, recently it has been argued that ANS representations are not directly numerical, but rather are formed by amalgamating perceptual features confounded with the set’s cardinality. In this paper, we approach the question of whether ANS representations are numerical by studying the properties they have, rather than how they are formed. Across two pre-registered within-subjects studies, we measured 189 participants’ ability to multiply the numbers between 2 and 8. Participants completed symbolic and nonsymbolic versions of the task. Results showed that participants succeeded at above-chance levels when multiplying nonsymbolic representations within the subitizing range (2-4) but were at chance levels when multiplying numbers within the ANS range (5-8). We conclude that, unlike Object Tracking System (OTS) representations, two ANS representations cannot be multiplied together. We suggest that investigating which numerical properties ANS representations possess may advance the debate over whether the ANS is a genuinely numerical system.
The role of basic number processing in high mathematics achievement in primary school
Authors: Bakker Merel , Pelgrims Elise , Torbeyns Joke , Verschaffel Lieven , De Smedt Bert
Published: March 2023

While symbolic number processing is an important correlate for typical and low mathematics achievement, it remains to be determined whether children with high mathematics achievement also have excellent symbolic number processing abilities. We investigated this question in 64 children (aged 8 to 10), i.e., 32 children with persistent high achievement in mathematics (above the 90th percentile) and 32 average-achieving peers (between the 25th and 75th percentile). Children completed measures of symbolic number processing (comparison and order). We additionally investigated the roles of spatial visualization and working memory. High mathematics achievers were faster and more accurate in order processing compared to average achievers, but no differences were found in magnitude comparison. High mathematics achievers demonstrated better spatial visualization ability, while group differences in working memory were less clear. Spatial visualization ability was the only significant predictor of group membership. Our results therefore highlight the role of high spatial visualization ability in high mathematics achievement.
Physical Activity in Multiple Myeloma: A Review of the Current Literature
Authors: Hillengass, RN, ACSM-CPT Michaela , Joseph, MS, MBA Janine , McCarthy Jane , Hillengass, MD, PhD Jens
Published: March 2023

One of the major issues patients with multiple myeloma (MM) suffer from is bone instability and the resulting difficulties that come along with it, such as pain and immobility. Few studies have been performed in this patient group to investigate the effects of physical exercise on outcomes such as muscle strength, quality of life, fatigue, and pain. A PubMed search was conducted by entering the search terms “multiple myeloma” and “exercise,” and “multiple myeloma” and “physical activity” that yielded 178 and 218 manuscripts, respectively. Limiting the search results to clinical trials left 13 and 14 manuscripts, respectively, and 7 studies (1 retrospective chart review, 1 questionnaire study, and 5 prospective clinical trials). The majority of these studies (5) were published in the past decade. The outcomes of several studies of exercise in MM show that physical exercise is feasible for MM patients. Compared with the control groups, the most active participants show better outcomes, such as improvements in their blood counts and in quality-of-life parameters such as fatigue, pain, sleep, and mood. One trial found that MM patients were in much poorer condition than people in a normative standard group. Some of the reported outcomes of exercise in MM have been promising but need to be substantiated in a broader setting with more diverse participants, for a longer duration, and include more endpoints. Due to the disease-inherent risk of bone-related complications, an individualized, supervised training protocol could be a preferable tool.
An Assessment of Crop-Specific Land Cover Predictions Using High-Order Markov Chains and Deep Neural Networks
Authors: Sartore Luca , Boryan Claire , Dau Andrew , Willis Patrick
Published: March 2023

High-Order Markov Chains (HOMC) are conventional models, based on transition probabilities, that are used by the United States Department of Agriculture (USDA) National Agricultural Statistics Service (NASS) to study crop-rotation patterns over time. However, HOMCs routinely suffer from sparsity and identifiability issues because the categorical data are represented as indicator (or dummy) variables. In fact, the dimension of the parametric space increases exponentially with the order of HOMCs required for analysis. While parsimonious representations reduce the number of parameters, as has been shown in the literature, they often result in less accurate predictions. Most parsimonious models are trained on big data structures, which can be compressed and efficiently processed using alternative algorithms. Consequently, a thorough evaluation and comparison of the prediction results obtain using a new HOMC algorithm and different types of Deep Neural Networks (DNN) across a range of agricultural conditions is warranted to determine which model is most appropriate for operational crop specific land cover prediction of United States (US) agriculture. In this paper, six neural network models are applied to crop rotation data between 2011 and 2021 from six agriculturally intensive counties, which reflect the range of major crops grown and a variety of crop rotation patterns in the Midwest and southern US. The six counties include: Renville, North Dakota; Perkins, Nebraska; Hale, Texas; Livingston, Illinois; McLean, Illinois; and Shelby, Ohio. Results show the DNN models achieve higher overall prediction accuracy for all counties in 2021. The proposed DNN models allow for the ingestion of long time series data, and robustly achieve higher accuracy values than a new HOMC algorithm considered for predicting crop specific land cover in the US.
Preservice Teacher Action Research: Making Meaning and Generating Knowledge Through Inquiry
Authors: Ginsberg Rachel
Published: March 2023

This article analyzes the ways in which action research during preservice teacher education influences the development of a critical inquiry stance. By following eight preservice teachers as they conducted action research in their final semester of student teaching, this article demonstrates how action research created the space for preservice teachers to engage in practical and critical inquiry, which allowed participants the opportunity to develop a critical inquiry stance, to varying degrees. Discussed are the disparate ways participants thought about the meaning they made and the knowledge they generated during their action research assignment. The freedom action research granted preservice teacher to make meaning of their classroom instruction, generate knowledge, and bridge the gap between theory and practice, instruction and learning, and their students and themselves, allowed for the development of a critical inquiry stance. Findings suggest that through inquiry, preservice teachers disrupted the hierarchy of knowledge generation in teaching, as they theorized instruction, problematized pedagogy, and improved their teaching practices.
Constructing teacher identity in teacher collaboration: What does it mean to be a teacher of culturally and linguistically diverse English learners?
Authors: Giles Amanda , Giles Amanda
Published: March 2023

Research calls for practice-based inquiry where language teachers conduct exploratory action research to transform their pedagogical practices to impact student achievement. This study builds on the research in practitioner inquiry, teacher collaboration, and teacher identity to investigate how a seventh-grade English Language Arts (ELA) teacher (Heather) constructed her identity as she collaborated with an ESL teacher (Amanda) to plan for and teach ESL students in a collaboratively taught ELA classroom. Our qualitative inquiry included data gathered from two collaborative cycles with three semi-structured interviews, two collaborative planning sessions, fieldnotes of the collaborative teaching sessions, and two reflective journals authored by the ELA teacher. The findings illustrate that Heather constructed her teacher identity as a novice teacher with surface-level understandings of ESL students and a limited knowledge about how to plan for the ESL students in her classroom. Collaboration did not disrupt her deficit student perspectives nor did this partnership pave the way for Heather’s renewed understandings about how to teach ESL students in the ELA classroom. Collaboration, instead, provided Heather access to Amanda, whom Heather positioned as an experienced content teacher who could make the content accessible to ESL students.
Teacher-practitioner Inquiry in Professional Development A Case of Adaptation and Resistance to Genre-based Systemic Functional Linguistic as a New Writing Instruction: A Case of Adaptation and Resistance to Genre-based Systemic Functional Linguistic as a New Writing Instruction
Authors: Dinh Hanh , Nguyen Lan Thi Huong
Published: March 2023

This qualitative study reports the results of sensemaking when teacher-practitioner inquiry in professional development (PD) is carried out for 120 Vietnamese K-12 and college teachers. The PD was designed to prepare teachers to teach with different newly-approved English language coursebooks using a genre-based systemic functional linguistic approach (SFL). During scaffolds in workshops, teaching staff guided teachers in cooperating and drafting lessons using genre-based SFL, examining the lessons’ impacts on students’ responses. Teachers also journaled to unravel the knitted instructional complexities and express their willingness to adapt to emerging teaching practices. Data were collected via the video recordings, teachers’ interviews, and content analysis of their inquiry products. Four themes representing the complexities in teachers’ sensemaking of scaffolded collaborative PD were: 1. Improved teacher agency in terms of planning and instruction; 2. Research-based experiential learning creating a venue for intrinsic motivation to innovate in instruction; 3. An overwhelming feeling of inequity between high and low-resourced instructional situations; 4. The mismatch between teachers’ advocacy for desired deep-learning approach and the traditional ideology of rote learning for exams.
La sacralité du pouvoir impérial à travers le corpus épistolographique de Démétrios Cydonès
Authors: Panagopoulos Spyridon
Published: March 2023

Cet article présente le caractère sacré à partir duquel le pouvoir impérial doit être possédé, selon le penseur byzantin tardif Démétrios Cydonès. Les lettres de Cydonès montrent que l'empereur doit gouverner en tant que représentant de Dieu sur terre, ou plutôt cogouverner avec Dieu ses sujets et les affaires publiques. La victoire sur les ennemis aura l'approbation divine, tandis que les vertus de chaque monarque sont surveillées d'une certaine manière par Dieu lui-même. Bref, chaque souverain doit imiter Dieu dans sa vie et dans son gouvernement.
The potential of integrating human and mouse discovery platforms to advance our understanding of cardiometabolic diseases
Authors: Jurrjens Aaron W , Seldin Marcus M , Giles Corey , Meikle Peter J , Drew Brian G , Calkin Anna C
Published: March 2023

Cardiometabolic diseases encompass a range of interrelated conditions that arise from underlying metabolic perturbations precipitated by genetic, environmental, and lifestyle factors. While obesity, dyslipidaemia, smoking, and insulin resistance are major risk factors for cardiometabolic diseases, individuals still present in the absence of such traditional risk factors, making it difficult to determine those at greatest risk of disease. Thus, it is crucial to elucidate the genetic, environmental, and molecular underpinnings to better understand, diagnose, and treat cardiometabolic diseases. Much of this information can be garnered using systems genetics, which takes population-based approaches to investigate how genetic variance contributes to complex traits. Despite the important advances made by human genome-wide association studies (GWAS) in this space, corroboration of these findings has been hampered by limitations including the inability to control environmental influence, limited access to pertinent metabolic tissues, and often, poor classification of diseases or phenotypes. A complementary approach to human GWAS is the utilisation of model systems such as genetically diverse mouse panels to study natural genetic and phenotypic variation in a controlled environment. Here, we review mouse genetic reference panels and the opportunities they provide for the study of cardiometabolic diseases and related traits. We discuss how the post-GWAS era has prompted a shift in focus from discovery of novel genetic variants to understanding gene function. Finally, we highlight key advantages and challenges of integrating complementary genetic and multi-omics data from human and mouse populations to advance biological discovery.
Fortellingen om «estekster»
Authors: Engesnes Nina
Published: March 2023

Denne artikkelen utforsker hvordan «estekster» kan bli til og skape mening i en praksisledet forskningsprosess om barnehagens lydlandskaper. Med «estekster» menes tekster med estetiske kvaliteter, gjerne i ulike modaliteter, som fungerer som redskaper i forskning både i individuelle tankeprosesser og i refleksive samarbeidsprosesser. Estekstene opptrer både som tankeredskaper i utforskingen av forskerroller, som empiri sammen med fotografier og transkriberte gruppesamtaler og som eksempler på analyse. «A/r/tografi», «poetic inquiry» og narrativ analyse er brukt som metodologiske tilnærminger. I artikkelen tas leseren med på utviklingen av estekstene fra verbaltekstlige, poetiske gjengivelser til auditive og visuelle narrativer. Gjennom denne endringen går også estekstene fra å fungere som et redskap i utforskingen av egen forskerrolle til å få betydning som samskapende forskningsredskap i en forskergruppe. Arbeidet viser også at estekster kan egne seg til å uttrykke kompleksitet og subjektive opplevelser som inkluderer det stemningsfulle, og at barnehagens lydlandskaper vokser frem med flere nyanser. I diskusjonen utforskes estekstene videre som kunnskapsressurser innen praksisledet forskning i nært samarbeid mellom barnehagesektoren og barnehagelærerutdanningen.
Foto på webside: "Lyttelinjer" av Tona Gulpinar
Impact of COVID-19 lockdown on air quality analyzed through machine learning techniques
Authors: Zukaib Umer , Maray Mohammed , Mustafa Saad , Haq Nuhman Ul , Khan Atta ur Rehman , Rehman Faisal
Published: March 2023

After February 2020, the majority of the world’s governments decided to implement a lockdown in order to limit the spread of the deadly COVID-19 virus. This restriction improved air quality by reducing emissions of particular atmospheric pollutants from industrial and vehicular traffic. In this study, we look at how the COVID-19 shutdown influenced the air quality in Lahore, Pakistan. HAC Agri Limited, Dawn Food Head Office, Phase 8-DHA, and Zeenat Block in Lahore were chosen to give historical data on the concentrations of many pollutants, including PM2.5, PM10 (particulate matter), NO2 (nitrogen dioxide), and O3 (ozone). We use a variety of models, including decision tree, SVR, random forest, ARIMA, CNN, N-BEATS, and LSTM, to compare and forecast air quality. Using machine learning methods, we looked at how each pollutant’s levels changed during the lockdown. It has been shown that LSTM estimates the amounts of each pollutant during the lockout more precisely than other models. The results show that during the lockdown, the concentration of atmospheric pollutants decreased, and the air quality index improved by around 20%. The results also show a 42% drop in PM2.5 concentration, a 72% drop in PM10 concentration, a 29% drop in NO2 concentration, and an increase of 20% in O3 concentration. The machine learning models are assessed using the RMSE, MAE, and R-SQUARE values. The LSTM measures NO2 at 4.35%, O3 at 8.2%, PM2.5 at 4.46%, and PM10 at 8.58% in terms of MAE. It is observed that the LSTM model outperformed with the fewest errors when the projected values are compared with the actual values.
Comparative Evaluation of Different Retreatment Files for Gutta-percha Removal from Curved Root Canals Accessed with Novel Ultra-conservative Opening: An In-vitro Study
Authors: Joshi Chintan , Hajoori Mustafa , Patel Aashray , Somani Mona , Thumar Sweety , Khunt Ankita , Patel Dritali , Desai Neelam
Published: March 2023

Introduction: In endodontic retreatment, gutta-percha removal must be done correctly in order to assure a successful outcome following failed procedures. The goal of this study was to compare the effectiveness of stainless-steel hand files with three different nickel-titanium rotary instrument systems for removing guttapercha using ultra-conservative access opening in curved canals. Aim: To compare the efficacy of different rotary instruments for removing obturating material from root canals with Ninja access in mandibular mesiobuccal moderately curved canals measured radiographically using Cone-beam Computed Tomography (CBCT). Materials and Methods: An in-vitro study was conducted in the Conservative and Endodontics department, Karnavati School of Dentistry, Karnavati University, Gandhinagar, Gujarat, India in the time period of June 2022 to July 2022. Forty extracted human mandibular molar teeth were accessed through Ultraconservative opening (Ninja Access). After preparing the root canals, they were sealed using gutta-percha and AH Plus sealer through lateral compaction. The teeth were then stored for one week. The samples were divided into four groups according to the rotary file used: Group I- Hedstrom Files; Group II- Pro taper Universal Retreatment (PTUR) Files; Group III- Neoendo Retreatment Files; Group IV- R-Endo Retreatment. The amount of remaining filling material after the retreatment procedure was checked with CBCT. The statistical analysis was performed using R statistical analysis software version 4.1.0 for windows. Results: In sagittal section, there was significant difference of residual filling material between the four file systems in middle third only (p=0.048) while significant difference was seen only in apical third in the coronal section (p=0.011). However, the three rotary retreatment files left significantly less remnants than Hedström files during removal of the gutta-percha. The time taken for retreatment was significantly higher for Hedström files (398.90±20.717) sec followed by R-endo retreatment files (274.30±14.407). Conclusion: H file was the least effective in removing guttapercha from the canals when compared to the other three file systems. The Neo-Endo rotary retreatment system was faster.
Police-Public Health Partnership to Serve Vulnerable Persons: Examining an Early Intervention Program
Authors: Martin Krystle , Stanyon Wendy , Bickle Korri
Published: March 2023

Police services have frequent contact with people living with mental disorders, substance misuse, or homelessness. This paper describes a specialized service within a police service in Ontario, Canada, aimed to support the needs of these vulnerable individuals. Implications for police services considering implementing a similar program are discussed.
Effect of Micronutrients on Growth and Yield of Groundnut (Arachis hypogaea L.) Varieties
Authors: Kumar Thokannagari Sandeep , Mehera Biswarup , Kumar Prateek , Kumar Bharath
Published: March 2023

During the summer season of 2022, a field experimental trail on groundnut was performed at Crop Research Farm (CRF), Department of Agronomy, SHUATS, Prayagraj (U.P.) to evaluate the impact of micronutrients on the growth and yield of groundnut (Arachis hypogea L.) varieties. The experimental plot's soil was sandy loam in texture, virtually neutral in soil reaction (pH 7.7), low in organic carbon (0.44%), available N (171.48 kg/ha), available P (27.00 kg/ha), and available K (291.20 kg/ha). The experiment was designed in the Randomized Block Design (RBD) method, with nine treatments repeated three times. According to this trial, the treatments are zinc (0.5%), boron (0.2%), zinc+ boron (0.5%+0.2%) as foliar spray, and varieties. (Kadiri 6, Kadiri 9, Kadiri Amaravati). The treatment combinations are, T1-0.5% Zinc (foliar) + Kadiri 6, T2- 0.5% Zinc (foliar) + Kadiri 9, T3- 0.5% Zinc (foliar) + Kadiri Amaravati, T4- 0.2% Boron (foliar) + Kadiri 6, T5- 0.2% Boron (foliar) + Kadiri 9, T6- 0.2% Boron (foliar) + Kadiri Amaravati, T7- (0.5% + 0.2%) Zn+ B (foliar) + Kadiri 6, T8- (0.5% + 0.2%) Zn+ B (foliar) + Kadiri 9, T9- (0.5% + 0.2%) Zn+ B (foliar) + Kadiri Amaravati. (0.5% + 0.2%) Zn + B (foliar) application with variety Kadiri 6 resulted in greater Plant height (26.60cm), Nodules/plant (49.14), and Plant dry weight (6.56 g/plant). Maximum number of pods per plant (27.87), kernels per pod (2.66), seed index (40.13 g), seed yield (2.48 t/ha), haulm yield (5.67 t/ha), and harvest index (30.44%). Thus, using (0.5% + 0.2%) Zn + B (foliar) in conjunction with the variety Kadiri 6 could be a promising choice for increasing groundnut yield.
Mycoremediation of Heavy Metals from Electronic Waste Polluted Water Using Indigenous Fungi and Its Implications
Authors: Majolagbe O. N. , Ariyo O. G. , Bello O. S. , Adeyeni E. G. , Owoseni A. A. , Oluranti O. O.
Published: March 2023

Background: Heavy metals (HM) pollutants are crucial environmental and public health problems due to their toxicity, which has implications on public health. The site of study has been reported to be densely polluted with heavy metals as a result of dumping used electronic wastes into the water body.

Aim: This study was carried out to determine the biosorption potentials of indigenous fungi isolates in reducing heavy metal present in electronic wastes polluted water body.

Study Design: This was a laboratory based study.

Place and Duration of Study: The study was conducted at the Microbial Resources Research Laboratory, Department of Pure and Applied Biology, Ladoke Akintola University of Technology Ogbomoso, Nigeria from July 2021 to June 2022.

Methodology: Heavy metal polluted water sample was collected near the dumpsite of e-waste in Alaba International market, Lagos Nigeria. Fungi were isolated from the polluted water sample by carrying out serial dilution. Pure colonies were obtained and stored at 4°C. Media formulations (MF) trials for the biosorption process was achieved using brewery waste and honeycomb extracts. Exactly 200 ml of MF were dispensed into a 500 ml Elmeryer flask containing 100 ml of the e-waste polluted water and fugal discs. Atomic absorption spectrophotometer was used to determine the heavy metal concentration in the water samples. The biological interactions of the fungi with the polluted water sample was monitored using Fourier transform infrared (FTIR) spectroscopy. The pH, electrical conductivity and other physicochemical parameters were also determined.

Results: Trichoderma harzianum, T. viride, Fusarium oxysporum, Aspergillus flavus and A. niger were isolated from the heavy metal polluted water samples. Heavy metal such as Pb (13.30 mg/L), Cd (16.50 mg/L), Cr (6.41 mg/L), Ni (3.81 mg/L), Zn (8.85 mg/L), Cu (8.33 mg/L), Fe (5.60 mg/L) had values which were higher than the acceptable limits. Biosorption efficiency of each of the fungus in reducing the metals present in the sample was in the increasing order of A. niger<A. flavus<F. oxysporum<T. viride<T. harzianum. FTIR showed that some peaks were shifted to lower wavenumber as a result of the interactions of the fungus with the heavy metal in the water sample. This study revealed that T. harzianum had the highest biosorption efficiency for the removal of heavy metal in the polluted water sample.

Conclusion: It is essential that heavy metals be removed from polluted water body to avoid its deleterious effects on public health. This can be achieved biologically using any of the fungi isolated in this work.
Primary School Teachers’ Instructional Competences in the Implementation of Competence-based Curriculum: A Case Study of Mpwapwa District Council
Authors: Ndimbo William H. , Kessy Hyasinta
Published: March 2023

Teachers’ understanding of the concept competence-based curriculum, competences demonstrated in preparing of competence-based curriculum materials, competences in integrating competence-based curriculum materials with actual classroom teaching, and teachers’ competences to address challenges in the implementation of competence-based curriculum were the objectives of the study. The study investigated on teachers’ instructional competences in the implementation of competence-based curriculum. Mpwapwa District Council was a case of this study. The study sample size was drawn using purposeful techniques. A total of 24 participants from 6 primary schools were involved in this study. 18 out of 24 participants were classroom teachers, and 6 were Head-teachers. The study used qualitative approach to capture participants’ views. Document review, observation, and interview methods were employed for data collection. Data were analyzed through thematic and content techniques. The findings revealed that teachers understand competence-based curriculum as activity and application oriented curriculum. Further, the findings showed that teachers use inappropriate verbs in preparing scheme of works and lesson plans. Moreover, the study found that teachers possess adequate instructional competences however, large classes and shortage of text books hindered them to effectively integrate the curriculum materials; lesson plans with actual classroom implementation of the curriculum. Additionally, it was found that teachers have reasonable competences to overcome challenges in the implementation of competence-based curriculum. The study concluded that despite the noted disparities, teachers possess and use instructional competences effectively to implement the curriculum. However, for higher adeptness in the implementation of competence-based curriculum it is recommended that formal trainings should be given to all teachers in the District. Also schools should be provided with adequate text books. Importantly, the present teachers should be redeployed equally to all schools.