bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of mixing temperature on the dispersion and degradation behaviors of HDPE/UHMWPE blends
Authors: Watanabe Shiori , Yamada Sayaka , Kasai Nobuhiro , Kida Takumitsu , Takeshita Hiroki , Tokumitsu Katsuhisa
Published: August 2024

There is currently considerable interest in high-density polyethylene (HDPE)/ultra-high-molecular-weight polyethylene (UHMWPE) blends as recyclable all-polyolefin materials with favorable mechanical properties that can be processed by continuous melt-mixing. Optimal mixing is required to improve the mechanical properties of polymer blends by ensuring their dispersibility and low degradation. In the present study, we investigated the effects of mixing temperature on the dispersion and degradation behaviors of HDPE/UHMWPE blends. Neat HDPE and a HDPE blend comprising 5 % UHMWPE were obtained by melt-mixing while changing the input energy in an internal batch mixer under a nitrogen atmosphere. The temperature of the mixer was set at 200 °C for neat HDPE, and at 180, 200, and 220 °C for the HDPE/UHMWPE blends. Optical microscopy and thermal analysis revealed that the dispersion of UHMWPE in HDPE was accelerated at higher mixing temperatures. However, in the high input energy range, mixing at 200 °C resulted in the most favorable dispersion. Gel permeation chromatography and rheological measurements suggested that chain scission and branching/crosslinking due to degradation were accelerated at higher mixing temperatures, even when mixing in a nitrogen atmosphere. Chemiluminescence measurements suggested that chain scission and branching/crosslinking were caused by an initial oxidation reaction. Furthermore, for the same input energy, the maximum shear stress increased as the mixing temperature decreased, but the mixing time and thermal history increased as the mixing temperature increased. The results suggest that in a blend comprising HDPE and UHMWPE, mixing at the molecular level due to high temperature and fine dispersion of UHMWPE due to shear stress proceed simultaneously. On the other hand, the results also confirmed that degradation was more influenced by the promotion of oxidation due to high temperatures and prolonged mixing than by shear stress.
Locally robust Msplitestimation
Authors: Wyszkowska Patrycja , Duchnowski Robert
Published: August 2024

Processing measurement data is an essential part of surveying engineering. One can list several methods in such a context: least squares estimation, M-estimation, R-estimation, etc. Some methods were developed by surveyors, e.g., the Danish method, IGG scheme, or Msplitestimation. The last method is, in fact, a class of estimation procedures dedicated to different problems. As a new approach to processing data, Msplitestimation is still being developed and improved. That paper concerns the local robustness of Msplitestimation and introduces a new Msplitestimation variant that is less sensitive to local outliers. Such a property seems important, especially in big data processing, such as observations from Light Detection and Ranging systems. The new variant modifies the squared Msplitestimation (SMS estimation) by implementing the adapted Tukey weight function, hence its acronym SMSTL estimation. The basic theoretical and empirical analyses, which were performed for the univariate model using, among others, the appropriate measures of robustness, confirmed the expected property of the method. The further tests, based on simulated as well as real data, show that the new method might overperform other Msplitestimation variants and classical methods for the chosen types of observation sets.
Simulation of doubly stochastic Poisson point processes and application to nucleation of nanocrystals and evaluation of exciton fluxes
Authors: Sabelfeld Karl K. , Glazkov Stepan
Published: August 2024

In this study we solve the following problem: Simulate random 2D Poisson point processes with a desired correlation function.
To solve this problem we suggest the following algorithm: (1)
simulate a positive valued random process with the desired correlation function, (2) use this process as an intensity of the doubly stochastic Poisson random point process.
We apply this algorithm to simulate random distribution of nanocrystals on a plane.
Then we apply the developed methods to calculate excitonic
fluxes to the family of generated nanocrystals.
Microstructures of iron meteorites
Authors: Strobl S. , Haubner R.
Published: August 2024

Meteorites originate from the early phase of our solar system and are wonderfully undefined and inhomogeneous. In terms of its composition and microstructure, one single meteorite has quite a few surprises in store. The iron meteorite microstructure depends essentially on the initial solidification of the melt in a larger asteroid or minor planet. The solidification process itself is a function of local element concentrations and the very slow cooling rate.

Various collisions in space resulted in the fragmentation of the asteroids and the deformation of the microstructure. However, whether visible microstructural changes occur or not depends on the microstructure itself. And finally, corrosion may also occur in the Earth’s atmosphere. An attempt is made to explain the different microstructures on the example of three iron meteorites, namely those found in Canyon Diablo, Gebel Kamil, and Dronino.
Challenges and possibilities of the manual metallographic serial sectioning process using the example of a quantitative microstructural analysis of graphite in cast iron
Authors: Lemiasheuski A. , Kranzmann A. , Pfennig A.
Published: August 2024

The 3D microstructure analysis presented in this study focuses on the nodular graphite of an EN-GJS grade cast iron. The shape is analyzed based on shape factor and aspect ratio as well as average particle size and distribution. The shape of graphites in cast iron materials is critical to the mechanical properties of these alloys and is essential for the characterization of the material. Metallographic serial sectioning creates a digital twin of the material, which is removed layer by layer and visualized layer by layer under an optical microscope. From this three-dimensional twin, any number of planes can be digitally projected and analyzed. Conventional quantitative 3D analysis examines the voxel count and composition of a body in 3D space. The analysis presented here applies stereological 2D analysis methods to three spatial planes of the material. Two of the planes are digital projections of the twin. The two reconstructed planes of the material are chosen so that the direction vectors of all three planes form an angle of 90° to each other. The methodology is described in detail and the challenges and opportunities of the serial section method presented here are discussed.
Examination of the Dry Density Importances in TDR Use and of the ASTM D6780 Standard Based on a New Calibration Procedure
Authors: Nachum Shay
Published: August 2024

The use of time domain reflectometry (TDR) to monitor soil water content at either field or laboratory scales is highly common. Regarding the soil dry density, ρd, effect on the TDR application, three main approaches are found in the literature: (1) Ignore the density issue and use calibration to evaluate the water content regardless of the density. This approach is basic, yet common. (2) Include soil density in the calibration equation and use calibration for the water content as a function of both the TDR output and soil density. In this approach, the soil density should be provided from an independent source. (3) Determined ρd from the TDR waveform. In this case both water content and ρd are set from the TDR analysis. In cases where the ρd is not available, in order to use TDR for water content measurement, a decision has to be made whether to address the density issue although it requires resources, or to neglect it. This article reviews this issue and validates the density effect using an efficient TDR calibration methodology. A calibration scheme that controls ρd of the specimen has been developed and applied. The methodology creates continuous calibration curves over a range of volumetric water content from a single test specimen. Based on the results, it has been demonstrated that the soil density has a major effect on the TDR output and it cannot be ignored. In addition, this article presents a unique examination of ASTM D6780, Standard Test Methods for Water Content and Density of Soil In Situ by Time Domain Reflectometry (TDR). The ASTM dry density estimation was found to provide reliable results; however, the gravimetric water contents estimation gives unsatisfactory results, especially for low densities.
Inovações e conflitos na proposta curricular de SC
Authors: Furlanetto Maria Marta
Published: August 2024

Este trabalho trata de algumas questões associadas à linguagem no contexto social e outras relacionadas ao ensino e à aprendizagem de língua portuguesa como língua materna. Reflito sobre certas questões vinculadas à tradição de conceber a “unidade lingüística” nacional no contexto das normas sociais e aos meios correntemente utilizados para ensinar língua. Ponho o foco sobre os aportes da Proposta Curricular de Santa Catarina (PC-SC), levando em conta as políticas de educação lingüística. Apresento também alguns desafios e perspectivas para a validade e continuidade das diretrizespostas nesse documento, especialmente com vistas à formação docente, a partir de avaliações já efetuadas e de investigações educacionais em contextos mais abrangentes.
Funções do mas em um texto oral-dialogado
Authors: Sella Aparecida Feola
Published: August 2024

Este artigo retrata pesquisa sobre o estudo da conjunção ‘mas’, considerandose a proposta de Ducrot (1984) referente às orientações argumentativas operadas pelo mas. Empreende-se uma tentativa de conjugar a proposta desse autor às condições de produção de um texto oral-dialogado, nas quais os falantes empreendem esforços para garantirem a auto-imagem. Essa condição propicia usos dos ‘mas’ que extrapolam o universo da significação da frase, já que promove atos do tipo asserções, constatações, perguntas, dúvidas, os quais estão sob constante vigilância por parte dos interactantes. Sendo assim, tenta-se conciliar a possibilidade de se considerar tanto marcas inscritas na própria língua quanto traços de condução discursiva, no caso do texto oral-dialogado.
Perífrases [V1 (E) V2] em gêneros escritos
Authors: Tavares Maria Alice
Published: August 2024

À luz do referencial teórico do funcionalismo norte-americano, trato da perífrase [V1 (E) V2], em que V1 é o verbo auxiliar gramatical e V2 é o verbo principal lexical. Nesse tipo de perífrase, V1 é um verbo como IR, CHEGAR, PEGAR, que, prototipicamente, adiciona um traço de repentino e/ou surpreendente ao evento denotado por V2. Utilizando dados provenientes de fontes diversas, analiso o grau de disseminação da perífrase [V1 (E) V2] no português brasileiro contemporâneo escrito. Verifico que essa perífrase aparece em diferentes gêneros de discurso escrito, especialmente naqueles que permitem a manifestação de estilos informais. Todavia, aponto que a perífrase sob estudo aparece também em gêneros escritos formais. Além disso, apresento algumas sugestões a respeito de como abordar a perífrase [V1 (E) V2] em salas de aula de níveis fundamental e médio, defendendo que a análise de qualquer aspecto da gramática deve ser feita com base em textos de diferentes gêneros orais e escritos.
Inglês como língua internacional na universidade
Authors: Mott-Fernandez Cristina , Fogaça Francisco Carlos
Published: August 2024

O objetivo principal deste trabalho é analisar as crenças dos alunos de primeiro e último anos do curso de Letras em duas instituições de ensino superior – UNI 1 e a UNI 2 – acerca do ensino da língua inglesa como língua internacional. São discutidos alguns conceitos relacionados ao papel hegemônico da língua inglesa no mundo globalizado, tais como o imperialismo lingüístico (Phillipson, 1992), a perspectiva pós-modernista (Pennycook, 1994) e as idéias de Holborow (1999). Trazemos também as noções de países periféricos e países do centro (Kachru, 1985) e perspectivas educacionais que contemplam a expansão da língua inglesa no mundo (McKay, 2002; Canagarajah, 1999, 2005). Os resultados apontam para desejos conflitantes por parte dos alunos, que, ao mesmo tempo, anseiam por um ensino voltado para a internacionalidade, mas temem pela perda da identidade cultural.
Transitivity in visual grammar
Authors: Motta-Roth Désirée , Nascimento Fábio Santiago
Published: August 2024

This article has a two-fold objective: (1) to discuss how the system of transitivity in Kress and van Leeuwen’s Visual Grammar (1996) for the analysis of images is related to the system of transivity in Halliday’s Systemic Functional Grammar (2004) and (2) to suggest questions for pedagogical application of Visual Grammar categories in language teaching. Our interest in multimodality is justified by contemporary need for visual literacy which allows us: (1) to read the increasing number of multimodal genres we are exposed to (which combine sounds, images, colors, gestures etc.); (2) to investigate how multimodal texts combine in meaning production. In terms of a theoretical discussion about visual language, the study of Visual Grammar is relevant, considering the need for investigating the ways this kind of grammar can contribute for language teaching.
Relações entre pesquisa universitária e sociedade
Authors: Zozzoli Rita Maria Diniz
Published: August 2024

O presente trabalho parte de uma reflexão sobre as relações entre pesquisa universitária e sociedade para, com o auxílio de dados de pesquisa em sala de aula, considerar a possibilidade de propor um trabalho com a formação do professor, enquanto leitor e produtor ativo (Bakhtine/Volochinov, 1977 e Bakhtin, 2003) dos conhecimentos específicos veiculados nas situações de ensino e de aprendizagem de língua materna, bem como dos conhecimentos mais amplos relativos a seu papel no contexto social. Para tanto, verifica-se a necessidade de pesquisas que impliquem um trabalho coletivo no qual a articulação entre mundo acadêmico e as práticas sociais é indispensável (Bourdieu, 2004).
The Role of Charismatic Leadership Tactics and Inconsistent Messages in Processing and Evaluating Climate Change Information
Authors: Engelbert Lara H. , Van Elk Michiel , Theeuwes Jan , van Vugt Mark
Published: August 2024

Climate change poses an unprecedented challenge to humanity, and persuasive environmental communication is a crucial step for global leaders to counteract its consequences. Charismatic leaders are especially effective in communicating information. Interestingly, in recent years, there have been frequent incidences where charismatic leaders made inconsistent environmental statements. How people process such inconsistencies can provide key insights into understanding the processing of climate information. In two preregistered online studies (N = 668), we examined how people read and evaluate pro- and contra-environmentalism messages from an environmental, charismatic leader. We found persistent effects of message inconsistencies, leading to longer reading times and lower convincingness ratings for information. However, we failed to find an interaction effect of the experimental manipulations or a main effect of charisma on reading times for environmental messages. In Study 2, we detected an interaction effect of leader charisma and message inconsistency on how convincing participants rated text messages. Participants rated contra-environmental messages as more convincing when following displays of charismatic rather than neutral leader behavior. We discuss future research avenues to explore charismatic leader influences on processing climate change information.
Development of STEM-Based Learning Tools to Increase Students' Mathematical Creative Thinking Ability through Inquiry Learning
Authors: Nurintya Fairusz Hanan , Agoestanto Arief
Published: August 2024

This study aims to produce appropriate STEM nuanced learning tools on number material and find out the increase in students' mathematical creative thinking skills after the implementation of learning using STEM nuanced learning tools with inquiry learning models on number material. This study used the Research and Development (R&D) method. The R&D steps in this research are potential and problems, data collection, product design, product validation, testing, and the final product. The population in this study were students of class VII of SMP Negeri 8 Semarang, while the subjects in this study were students of class VII-F of SMP Negeri 8 Semarang, totaling 28 students. Data was collected using tests and questionnaires. The increase in mathematical creative thinking skills was analyzed using the N-Gain test from pretest and posttest data. The results showed that the learning tools with STEM nuances with the inquiry learning model developed had a decent level of feasibility, and there was an increase in students' mathematical creative thinking skills on each indicator after being given learning using STEM nuanced learning tools with inquiry learning models with moderate improvement criteria.
Analysis of The Ability to Understand Mathematical Concepts in Terms of Students' Confidence in Blended Learning
Authors: Permatasari Dwi Nuraeni , Sutarto Hery
Published: August 2024

The purpose of this study was to determine the effectiveness of the ability to understand mathematical concepts in Blended Learning and to determine the pattern of ability to understand mathematical concepts in terms of students' confidence in Blended Learning. The research method used is experimental research with a sequential explanatory strategy. The population of this study was class VII students of Junior High School 28 Semarang for the academic year 2020/2021, with the research sample being class VII A (experimental class) and class C (control class); sampling was done using a simple random sampling technique. Subjects to obtain quantitative data, namely students from the experimental class, were selected by nine students based on the grouping of the results of the self-confidence questionnaire. The data obtained from the calculation of quantitative data, namely the results of the study, show that Blended Learning is effective for improving students' understanding of mathematical concepts. In the analysis of test results and interviews, triangulation was carried out, namely based on the level of student confidence showing the pattern of students' ability to understand mathematical concepts, namely students with high levels of confidence had good mathematical concept skills, those with moderate confidence levels had sufficient mathematical concept understanding abilities, while students with low self-confidence, lack of mastery of the ability to understand mathematical concepts they have. It can be concluded that the higher the students' self-confidence, the more confident they will be in solving problems with their ability to understand mathematical concepts.
Computer Assisted Instruction (CAI) Drill and Practice to Improve Spatial Orientation Ability
Authors: Raksanegara Fadel , Nurjanah Nurjanah , Dahlan Jarnawi Afgani
Published: August 2024

This study aimed to examine the quality of improving students' spatial orientation skills through CAI (Computer Assisted Instruction) drill and practice. This study included experiments with the Non-Equivalent Control Group Design involving students at SMPN 18 Bandung selected by teacher, with 29 students in the experimental class and 26 students in the control class. The instrument used was a spatial orientation ability test instrument. The results of this study concluded that (1) the quality of improving the spatial orientation abilities of students who received CAI drill and practice was moderate, and the quality of improving spatial orientation abilities who received conventional learning was low. (2) the increase in the spatial orientation ability of students who get CAI drill and practice is higher than students who get conventional learning.
STUDI KOMPARASI PEMBELAJARAN NOVICK DAN GROUP INVESTIGATION TERHADAP KEMAMPUAN SPASIAL SISWA KELAS VIII MATERI GEOMETRI
Authors: Suroyya Dian Nailis , Rochmad Rochmad
Published: August 2024

Tujuan penelitian ini adalah mengetahui apakah apakah rata-rata kemampuan spasial siswa pada kelas yang menggunakan model pembelajaran Novick lebih baik dari rata-rata kemampuan spasial siswa pada kelas yang menggunakan model pembelajaran Direct Instruction, mengetahui apakah rata-rata kemampuan spasial siswa pada kelas yang menggunakan model pembelajaran Group Investigation lebih baik dari rata-rata kemampuan spasial siswa pada kelas yang menggunakan model pembelajaran Direct Instruction, mengetahui apakah rata-rata kemampuan spasial siswa pada kelas yang menggunakan model pembelajaran Novick lebih baik dari rata-rata kemampuan spasial siswa pada kelas yang menggunakan model pembelajaran Group Investigation, dan mengetahui apakah peningkatan kemampuan spasial siswa pada kelas yang menggunakan model pembelajaran Novick lebih baik dari peningkatan kemampuan spasial siswa pada kelas yang menggunakan model pembelajaran Group Investigation. Populasi dalam penelitian ini adalah seluruh siswa kelas VIII MTs N 1 Kudus tahun pelajaran 2013/2014. Pengambilan sampel menggunakan teknik random sampling. Data diperoleh melalui metode tes dan data dianalisis menggunakan uji t. Hasil penelitian menunjukkan bahwa rata-rata kemampuan spasial siswa pada kelas yang menggunakan model pembelajaran Novick dan rata-rata kemampuan spasial siswa pada kelas yang menggunakan model pembelajaran Group Investigation lebih baik dari rata-rata kemampuan spasial siswa pada kelas yang menggunakan model pembelajaran Direct Instruction, rata-rata kemampuan spasial siswa pada kelas yang menggunakan model pembelajaran Novick kurang dari atau sama dengan kemampuan rata-rata kemampuan spasial siswa pada kelas yang menggunakan model pembelajaran Group Investigation, dan peningkatan kemampuan spasial siswa pada kelas yang menggunakan model pembelajaran Novick kurang dari atau sama dengan peningkatan kemampuan spasial siswa pada kelas yang menggunakan model pembelajaran Group Investigation.
TINGKAT BERPIKIR KREATIF PADA GEOMETRI SISWA KELAS VII DITINJAU DARI GAYA KOGNITIF DALAM SETTING PROBLEM BASED LEARNING
Authors: Purnomo Dhidik Joko , Asikin Mohammad , Junaedi Iwan
Published: August 2024

Penelitian ini bertujuan untuk memperoleh deskripsi tingkat berpikir kreatif pada geometri siswa SMP Kelas VII ditinjau dari gaya kognitif dalam setting Problem Based Learning. Subjek penelitian ini adalah siswa kelas VII. Teknik pengumpulan data menggunakan tes berpikir kreatif matematika dan wawancara. Analisis tes berpikir kreatif matematika mengacu pada tiga komponen berpikir kreatif yaitu kefasihan, fleksibilitas, dan kebaruan. Analisis data dilakukan dengan langkah-langkah tahap reduksi data, tahap penyajian data, tahap verifikasi dan kesimpulan. Hasil penelitian menunjukkan bahwa: (1) tingkat berpikir kreatif siswa ditinjau dari gaya kognitif reflektif diperoleh hasil tingkat berpikir kreatif (TBK) 3 yang berarti kreatif, (2) tingkat berpikir kreatif siswa ditinjau dari gaya kognitif impulsif diperoleh tingkat berpikir kreatif (TBK) 1 yang berarti kurang kreatif dan tingkat berpikir kreatif (TBK) 4 yang berarti sangat kreatif.
KEEFEKTIFAN MODEL PEMBELAJARAN ARIAS BERBASIS ETNOMATEMATIKA TERHADAP KEMAMPUAN PEMECAHAN MASALAH SISWA KELAS VII
Authors: Supriyanti Supriyanti , Mastur Zaenuri , Sugiman Sugiman
Published: August 2024

Tujuan penelitian ini adalah untuk mengetahui keefektifan pembelajaran dengan model ARIAS berbasis etnomatematika terhadap kemampuan pemecahan masalah siswa. Populasi dalam penelitian ini adalah siswa kelas VII SMP Negeri 1 Slawi tahun pelajaran 2014/2015. Dengan teknik cluster random sampling, terpilih kelas VII-9 sebagai kelas eksperimen dan kelas VII-8 sebagai kelas kontrol. Metode yang digunakan untuk memperoleh data yaitu dokumentasi, tes, angket, dan observasi. Data dianalisis menggunakan uji proporsi, uji beda dua rata-rata, dan regresi linear ganda. Dari hasil penelitian diperoleh bahwa kemampuan pemecahan masalah siswa yang diajar dengan model pembelajaran ARIAS berbasis etnomatematika tuntas, kemampuan pemecahan masalah siswa yang diajar dengan model pembelajaran ekspositori tuntas, rata-rata kemampuan pemecahan masalah siswa pada pembelajaran menggunakan model ARIAS berbasis etnomatematika lebih baik dari rata-rata kemampuan pemecahan masalah pada pembelajaran menggunakan model ekspositori, keterampilan proses siswa dan sikap cinta budaya lokal siswa secara bersama berpengaruh terhadap kemampuan pemecahan masalah siswa. Jadi disimpulkan bahwa model pembelajaran ARIAS berbasis etnomatematika efektif terhadap kemampuan pemecahan masalah siswa.
Studentsâ€™s Mathematical Connection Ability and Disposition Reviewed by Keirsey Personality Type through Eliciting Activities Mathematics Learning Model
Authors: Prasetyo Ari , Dwidayati Nur Karomah , Junaedi Iwan
Published: August 2024

The purpose of this research was to described connection mathematical ability and mathematical disposition of  seventh grade students of Junior High School reviewed by Keirsey Temperament Sorter (KTS) were Artisans, Idealist, Guardian, and Rational personality in Eliciting Activities Mathematics Learning Model. And was to described the quality of Eliciting Activities Mathematics Learning Model in connection mathematical abilities and the disposition. The subject of research are the two students in each category of personality types. So the subject of this study are 8 student of class VII B SMP Negeri 1 Selogiri 2015/2016. The results Showed a description of (1) the quality of Eliciting Activities Mathematics Learning Model was  fine qualified learning model (2) the mathematical connection abilities of (a) Artisan student in succed 1 - 2 indicators means the category is medium, as a level as  their mathematical disposition level (b) Guardian students in the category of low, succed only 1 indicator and the rate of disposition was medium (c) Idealist students succed 3-4 indicators and very high levels to the mathematical dispositions (d) Rational  students suceed all indicators and entry high  level of the mathematical disposition.
The Effectiveness of Cooperative Learning Model of Pair Checks Type on Motivation and Mathematics Learning Outcomes of 8th Grade Junior High School Students
Authors: Wicaksono Wahyu Budi , Mashuri Mashuri , Veronica Rahayu Budhiati
Published: August 2024

The purpose of this research was to know the effectiveness of Pair Checks cooperative model towards studentsâ€™ learning result and learning motivation of eight grade. Population of this research were students of eight grade Junior High School 2 Pati in the academic year 2016/1017. The research used cluster random sampling technique.Where the selected samples were students of class VIII H as experimental class and class VIII G as control class. The data collected by the method of documentation, test methods, and scale methods. The analyzed of data used completeness test and average different test. The results showed that: (1) studentsâ€™ learning result who join Pair Checks cooperative model have classical study completeness; (2) studentsâ€™ mathematics learning result who join Pair Checks cooperative model is better than students mathematics learning result who join ekspository learning; (3) studentsâ€™ learning motivation who join Pair Checks cooperative model is better than studentsâ€™ learning motivation who join ekspository learning.
Ability Of Mathematical Reasoning in SMK 10th Grade with LAPS- Heuristic using Performance Assessment
Authors: Arivina Aulia Nur , Masrukan Masrukan , Prabowo Ardhi
Published: August 2024

The purposes of this research are: (1) Test the learning with LAPS-Heuristic model using performance assessment on 10th grade of Trigonometry material is complete, (2) to test the difference of students' mathematical reasoning ability on 10th grade of Trigonometry material between the learning model of LAPS-Heuristic using performance assessment, LAPS-Heuristic learning model with Expository learning model, (3) test the ability of mathematical reasoning with learning model of LAPS-Heuristik on Trigonometry material of SMK on 10th grade using performance assessment is increase. This is a quantitative research. The population is students of 10th grade of SMK 10 Semarang academic year 2016/2017 and the subject of research is selected by clustering random sampling. The results show that (1) Learning by model LAPS-Heuristic using performance assessment on 10th grade of Trigonometry material is complete (2) there are differences in students' mathematical reasoning ability on 10th grade of Trigonometry materials between LAPS-Heuristic learning model using performance assessment, LAPS-Heuristic learning model, and Expository learning model, (3) The ability of mathematical reasoning with learning model of LAPS-Heuristic on Trigonometry material of SMK class X using performance assessment increased.
Mathematical Communication Ability Viewed from Problem Solving Ability in Learning SAVI Model with Flash Media
Authors: Rini Kurnia Setyo , Sugiarto Sugiarto , Safa'atullah Muhammad Fajar
Published: August 2024

The aims of this research were (1) to test the mathematical communication ability of Junior High School 3 Salatiga in learning SAVI model with flash media achieved learning completeness classically, (2) to test the average of studentsâ€™ mathematical communication ability in learning SAVI model with flash media compared with the average of studentsâ€™ mathematical communication ability in learning DL model, and (3)to analyze the influences of learning SAVI model with flash media to group of students with low, medium, and high mathematical communication ability. The method used in this research is mixed method. Data analysis used included proportion test, averages difference test, and gain test. The results were (1) the mathematical communication ability of Junior High School 3 Salatiga in learning SAVI model with flash media achieved learning completeness classically, (2) the average of studentsâ€™ mathematical communication ability in learning SAVI model with flash media higher than the average of studentsâ€™ mathematical communication ability in learning DL model, and (3) learning SAVI model with flash media influenced to group of students with low, medium, and high mathematical communication ability.
The studentsâ€™ activity profiles and mathematic problem solving ability on the LAPS-Heuristic model learning
Authors: Amidi Amidi , Zahra Farah Anisah
Published: August 2024

Problem-solving skills that cover the ability to understand problems, design mathematical model, complete the model and interpret the solution obtained are the abilities which students must possess. With regard to above symptom, this study described  studentâ€™s  activity and mathematics problem solving ability based on SOLO Taxonomy on Laps-Heuristic learning model. The procedure of the study was done through providing learning with Laps-Heuristic model with mind mapping, observing student activity during learning, giving mathematics problem solving test, analyzing the result of mathematics problem solving test, classifying the result of mathematics problem solving test based on taxonomy of SOLO, choosing the subjects of study, interviewing selected subjects, and compiling the study results. While the procedures of data analysis of this study included data reduction, data presentation, and conclusion. Based on the result of the study, it showed that the studentsâ€™ activity was excellent due the fact that their scores were above 75% and their problem solving abilities were classified based on the SOLO Taxonomy consisting of 8 relational level students, 25 multi-structural level students, and 1extended abstract student.
The enhancement of studentsâ€™ ability in problem solving and mathematical disposition aspect through brain-based learning model
Authors: Martyaningrum Ika Deavy , Dewi Nuriana Rachmani , Wuryanto Wuryanto
Published: August 2024

The main purpose of this research is to analyze the achievement and the increasing of studentsâ€™ problem solving ability and studentsâ€™ mathematical disposition as the result of learning application through Brain-Based Learning model and conventional learning comprehensively. This research uses the mix method with concurrent triangulation. The research results show that: (1) The studentsâ€™ ability of problem solving using Brain-Based Learning model reaches classical learning mastery, (2) the studentsâ€™ achievement of problem solving using Brain-Based Learning model is higher than that of using conventional learning, (3) the studentsâ€™ enhancement of mathematical disposition using Brain-Based Learning model is the same with the achievement of using conventional leaning, (4) there is a few correlations between the achievement of problem solving ability and mathematical disposition, as well as their enhancement. To get comprehensive and accurate representation about the enhancement of mathematical disposition through Brain-Based Learning, it is necessary to conduct the future similar study with the same objects yet longer duration.
Mathematical creative thinking ability viewed from the types of personality on CPS learning model
Authors: Prasetiawan Aditya Hendra , Junaedi Iwan , Soedjoko Edy
Published: August 2024

The purpose of this research was to describe the learning quality of CPS model towards mathematical creative thinking ability of students viewed from personality types. This research was a mixed method is the type of this research. Mathematical Creative Thinking Skill Test (MCTST) was analyzed quantitatively by classical completeness test and different test average. Furthermore, MCTST was also analyzed qualitatively to gain the description of mathematical creative thinking ability viewed from personality types. The results showed that the quality of CPS mathematics learning model in good category. The artisans subject did not complete mathematical creative thinking aspects, especially fluency and flexibility aspects, guardians subject met all four aspects of mathematical creative thinking, the idealist subject did not meet mathematical creative thinking aspects, especially originality and elaboration aspects, and the rational subject met all four aspects of mathematical creative thinking.
Studentsâ€™ problem solving ability in thinking aloud pair problem solving learning assisted by schoology viewed from mathematical disposition
Authors: Winarti Endang Retno , Haryanti Monika Dwi , Asih Tri Sri Noor
Published: August 2024

This research aimed to determine whether Thinking Aloud Pair Problem Solving learning assisted by Schoology was effective to problem solving ability. The method of this research was quantitative-assisted interviews. This research involved 63 selected students of 252 of 8th grade students in one of junior high schools in Kudus. The results showed that: (1) students' problem solving ability in Thinking Aloud Pair Problem Solving learning assisted by Schoology achieved the mastery learning; (2) studentsâ€™ problem solving ability who received Thinking Aloud Pair Problem Solving learning assisted by Schoology was better than students who received Problem Based Learning; and (3) mathematical disposition possitively affected to the studentsâ€™ problem solving ability.
Developing Problem Based Learning supplemental materials to increase 7th graders higher-order thinking skills
Authors: Miftiani Sausallina Widad , Rochmad Rochmad , Kharis Muhammad
Published: August 2024

The study developed Problem Based Learning supplemental materials and aimed to (1) determine the characteristics of the supplemental materials, (2) determine the validity and readability of the supplemental materials, and (3) analyze the increase of Higher Order Thinking Skills after using the supplemental materials in the classroom. The method used in this research is research and development with 3D models (define, design, and develop). The increase of Higher Order Thinking Skills was analyzed by comparing the learning outcomes of the class that used the supplemental materials and class that used the default materials provided by schools. The population in this study were six classes of 7th grade of a Junior High School in Ungaran. The samples were selected by a random sampling technique to find a class for the experimental class and another class as a control class. Data were analyzed using a t-test and gain test. The study concluded that using Problem Based Learning supplemental material increased the Higher Order Thinking Skills of students.
The application of fast feedback in discovery learning on the achievement of critical thinking ability reviewed from adversity quotient
Authors: Narumi Safira Aprillia , Kartono Kartono
Published: August 2024

The objectives of this research were (1) to discover the effectiveness of discovery learning model with fast feedback towards the studentsâ€™ achievement of critical thinking abilities; and (2) to describe students' critical thinking abilities reviewed from adversity quotient. The research method and design used in this research was mix methods with sequential explanatory. The population of this research were 7th grade students of Junior High School 1 Semarang. Sampling for the experiment class and control class by means of cluster random sampling, and the selection of subjects using purposive sampling technique. The results showed that discovery learning with fast feedback was effective in achieving students' critical thinking abilities. The description of the subject's critical thinking abilities based on the adversity quotient showed that: (1) the climbersâ€™ subjects could master four indicators of critical thinking, namely interpretation, analysis, inference, and evaluation; (2) the campers-climbersâ€™ subjects could master two indicators of critical thinking, namely analysis and inference, and sufficiently master the indicators of interpretation and evaluation; and (3) the campersâ€™ subjects has sufficiently master two indicators of critical thinking, namely infer
The Improbability of John Brown
Authors: Conti Norman
Published: August 2024

I was a senior in high school when I saw the videorecording of Rodney King being beaten by LAPD officers Stacey Koon, Laurence Powell, Theodore Briseño, and Timothy Wind. I had just come home from my first year of college the day the L.A. riots broke out. I watched all of this, and more importantly I watched the reaction to it from the people closest to me. I observed these events through the lens of a young man who had always wanted to be a police officer, but was also coming to life intellectually in the world of higher education.
In 2000, I passed on a seat in the Pittsburgh Bureau of Police Training Academy in order to continue working to become a scholar of occupational culture and socialization within policing. To further my academic career, I had to focus on graduate funding, data, jobs, conference presentations, publications, grants, tenure, and promotion. It was a lot of work, it did not pay well, and in the end, I didn’t see how it was really helping anybody. By 2007, the weight of all that was crushing me. That’s when I was introduced to the Inside-Out Prison Exchange Program, and that changed everything.
Listening to Listening: A Response to Nina Sun Eidsheim’s The Race of Sound
Authors: M. Hisama Ellie
Published: August 2024

Nina Sun Eidsheim’s The Race of Sound boldly proposes that we should listen to listening. In her words, “in carrying out an analysis that is conscious of the fact that any voice is part of the collective voice, and that listening contributes to shaping that voice, we must listen to how we listen” (57). This volume will fundamentally alter music studies—musicology, ethnomusicology, and music theory—as well as studies of voice, opera, dramaturgy, race, gender, and sexuality. It turns our attention away from what singers purportedly are, as gleaned through their vocalizations, and persuasively argues that we should not aim to produce an instrument that is more beautifully in tune with our inner selves. It instead asks us to think unflinchingly about how vocal timbres are enculturated and produced from entrainment—to recognize that the voices we hear are, in fact, created in the act of listening. Two areas Eidsheim addresses, the figure of sound and phantom genealogy, have been particularly suggestive for my own thinking about the ways that oppressive identifications about voice—structures of race, gender, and sexuality— haunt our teaching, writing, and listening.
PEMANFAATAN SOSIAL MEDIA DALAM MENINGKATKAN EFEKTIVITAS DAKWAH DI ERA DIGITAL
Authors: Ummah Nurul Hidayatul
Published: August 2024

ABSTRAKMedia sosial menjadi sarana yang efektif dalam menyebarkan pesan-pesan dakwah secara global. Tujuan penelitian ini yaitu untuk menganalisis pemanfaatan sosial media dalam meningkatkan efektivitas dakwah di era digital. Hasil penelitian ini yaitu bahwa pemanfaatan media sosial dalam dakwah memiliki peran penting dan potensi besar. Pesan dakwah dapat tersebar secara cepat dan efektif melalui media sosial, mencapai audiens yang lebih luas. Namun, penggunaan media sosial dalam dakwah harus bijak dan bertanggung jawab. Konten dakwah perlu memperhatikan kebenaran, kredibilitas, dan konteks ajaran Islam. Kolaborasi antara kiai, santri, dan pengguna media sosial yang bijak diperlukan. Tantangan meliputi penyebaran informasi yang tidak akurat dan kurangnya pemahaman tentang etika bermedia sosial. Pendekatan bijak dan strategi efektif diperlukan, seperti memastikan keakuratan informasi dan meningkatkan literasi digital. Pemanfaatan media sosial dalam dakwah memiliki dampak sosial kompleks, dengan manfaat dan dampak negatif yang perlu diwaspadai. Pemahaman yang baik dan penggunaan yang bijak sangat penting dalam memanfaatkan media sosial dalam dakwahKata Kunci : Dakwah; Era Digital; Sosial Media
Lernaea cf. cyprinacea infection in agile frog (Rana dalmatina) tadpoles in Hungary
Authors: Varga Ádám , Demény Ferenc Zoltán , Weiperth András , Ferincz Árpád , Kucska Balázs , Urbányi Béla , Müller Tamás
Published: August 2024

The ectoparasitic copepod Lernaea cyprinacea (anchor worm) has more than 100 host species among teleost fishes and affects cyprinids both in fish farms and natural waters. In addition, while L. cyprinacea infection in amphibians has been recorded in Asia, North and South America, there is no data available in the literature on their presence in Europe. In this study, we first reported L. cf. cyprinacea parasitising an anuran tadpole in Europe. Specimens of L. cf. cyprinacea were observed attached to a tadpole of the agile frog (Rana dalmatina), which was caught during fishing of crucian carp fingerlings (Carassius carassius) from a small fish pond in Hungary during the summer of 2012. The infected tadpole was collected from a rearing pond, where juvenile crucian carps were kept. The tadpole was inspected in the laboratory, and digital photos were taken. The parasites were found attached to the body-tail junction and to the leg of the tadpole (at Gosner stage 41). The parasite species was identified as L. cf. cyprinacea based on morphological traits.
Long-term use of an implantable loop recorder for ECG recording in horses
Authors: Kovács Szilvia , Bodó Gábor , Tóth Ferenc Zs. , Néder László , Bakos Zoltán
Published: August 2024

Potential arrhythmias recorded by cardiac monitors using the built-in human algorithm are as follows: total number of episodes, ventricular tachycardia, asystole, bradycardia, atrial tachycardia, atrial fibrillation and the percentage of time spent in atrial tachycardia or atrial fibrillation. Long-term use of an insertable cardiac monitor (loop recorder) has been reported in one horse earlier, but its accurate role as a diagnostic tool is still unclear. The aim of the present study was to investigate the long-term applicability of the Reveal XT cardiac monitor for recording cardiac arrhythmias in adult horses. The Reveal XT cardiac monitor was implanted in 12 horses under sedation in standing position. Median duration of data recording calculated for the population was 1,169 days. The number of false positive detections of asystole and bradycardia was extremely high in all horses. For atrial fibrillation, false positive detection occurred in five and false negative detection occurred in one horse. The present study showed that the long-term use of the Reveal XT cardiac monitor is feasible, well-tolerated and the devices work reliably, without complications. The human algorithm could not be used for automatic detection of arrhythmic episodes in the study population. The device could detect atrial fibrillation in horses, but the recorded AF burden was inaccurate and the stored ECGs had to be manually interpreted. Because the human analyser algorithm of this cardiac monitor fails to identify bradyarrhythmias in horses based on our results, this instrument is not capable for accurately determining the aetiology of episodic collapse in this species.
Tathāgatagarbha
Authors: Coelho Fernanda , Tsai Patrícia
Published: August 2024

Resumo: O presente artigo visa iniciar uma discussão acerca de elementos centrais à tradição budista Mahāyāna, especificamente o conceito de tathāgatagarbha em diálogo com a noção argumentada por Butler, de gênero enquanto performance. A noção de gênero enquanto performance traz a possibilidade de um diálogo entre a não substancialidade e a construção social do gênero. Sob a percepção budista Mahāyāna, a partir da visão Geluk, dos fenômenos como não substanciais e construídos, especialmente evidente na categoria dos Sūtras da Prajn͂apāramitā e nas teorias presentes nos Sūtras Tathāgatagarbha.
Justiça Social, Budismo e Gênero pela Filosofia da Vacuidade Budista
Authors: Tsai Plínio Marcos
Published: August 2024

O objetivo do texto consiste na determinação da interface do diálogo entre o budismo e a justiça social na perspectiva da filosofia da vacuidade budista que se encontra nos domínios da filosofia da hermenêutica contemporânea. O diálogo se faz necessário porque o budismo se constitui como uma tradição religiosa com uma noção lógica relacional (anti-metafísica) enquanto a justiça social surge da modernidade, como resistência ao pensamento religioso europeu, e se desenvolve pela filosofia política, mas sem abandonar uma noção lógica predicativa (metafísica). Dentro do contexto religioso e os valores morais temos dois tipos diferentes de niilismo, aquele desenvolvido pela tradição budista e aquele surgido no registro da modernidade onde se encontra a justiça social. É na perspectiva da filosofia da vacuidade que o gênero é visto como parte essencialmente interdependente da justiça social e inseparável dela.
Nowatorskie ujęcie dyscypliny sakramentów wtajemniczenia chrześcijańskiego w „Kodeksie prawa kanonicznego” z 1983 roku
Authors: Janczewski Zbigniew
Published: August 2024

W 2017 roku Kościół obchodził setną rocznicę wydania pierwszego kodeksu prawa kanonicznego, zwanego również Pio-Benedyktyńskim. Rok 2003 wiąże się z kolejną, ważną datą – czterdzieści lat temu ukazał się drugi kodeks prawa kanonicznego, promulgowany przez papieża Jana Pawła II. Oba dzieliło sześćdziesiąt sześć lat, w czasie których obowiązywał pierwszy z nich. W niniejszym opracowaniu zostały ukazane różnice w przepisach kanonicznych dotyczących sakramentów wtajemniczenia chrześcijańskiego, pod kątem nowości wprowadzonych w kodeksie z 1983 roku, w porównaniu do wcześniejszego. Takich nowości było stosunkowo dużo. Opracowanie nie zawiera przepisów, które ukazały się po promulgacji pierwszego kodeksu i przed promulgacją drugiego. Chodzi tu przede wszystkim o niezwykle bogate prawodawstwo posoborowe (po soborze watykańskim II). Powody tego są głównie dwa: analiza tych dokumentów – ze względu na ich liczebność – musiała by być niezwykle obszerna oraz dlatego, że porównując bezpośrednio oba kodeksy można w sposób klarowny, wyraźny, zauważyć nowatorskie ujęcie sakramentów u współczesnego prawodawcy kościelnego, w porównaniu z rozwiązaniami z początku XX wieku.