bluuebunny/crossref_metadata_2025 huggingface dataset:
بناء وتقنين مقياس التفكير الابداعي للاعبي سيف المبارزة
Authors: Asst. Lec. Muhammad Fadel Anbar Hazal
Published: September 2024

هدف البحث الى بناء وتقنين مقياس التفكير الابداعي للاعبي سيف المبارزة واشتملت مجالات البحث على المجال البشري وهم (102) لاعباً من للاعبي اندية العراق للمبارزة الشباب بسلاح سيف المبارزة للموسم الرياضي (2023-2024) باستثناء المحافظات الشمالية لصعوبة الوصول إليها وتم تحدد المجال الزماني للمدة من (25/8/2023) لغاية (30/12/2023) اما المجال المكاني فاشتمل على قاعات وملاعب الاندية المبحوثه. وأستخدم الباحث المنهج الوصفي بالأسلوب المسحي اما عينة البحث فتكونت من (102) لاعباً من اندية العراق للمبارزة الشباب بسلاح سيف المبارزة حيث بتاريخ (20/9/2023) أجريت التجربة الاستطلاعية على عينة مكونة من (6) لاعبين ونسبتهم من مجتمع البحث (5.88%)، كما طبق المقياس على عينة البناء خلال الفترة من (30/9/2023 الى 25/10/2023) والبالغ عددهم (61) لاعبن ونسبتهم من مجتمع البحث (59.80%)، كذلك خلال الفترة من (10/11/2023 الى 30/11/2023) طبق المقياس على عينة التقنين والبالغ عددهم (35) لاعبن ونسبتهم من مجتمع البحث (34.31%) لاعبن علماً ان النظام المستعمل (SPSS) للحصول على نتائج البحث.
Municipal Politics and the PKK in the early 1970s: A citizenship perspective
Authors: Jongerden Joost , O'Connor Francis
Published: September 2024

This paper examines the Kurdistan Workers Party’s (PKK) municipal politics in the late 1970s through the lens of citizenship politics. The article introduces two concepts—activist citizenship and fugitive citizenship to analyse the PKK’s mobilisation in this period, before the 1980 military coup in Turkey. Activist citizenship challenges the restrictive boundaries of state-sanctioned citizenship, while fugitive citizenship creates alternative political spaces for marginalized groups. Both concepts highlight how individuals and groups, such as the PKK, can assert their political agency in contexts where they are denied formal citizenship. The research questions linear understandings of the PKK’s emergence as a political movement inevitably destined to become an insurgent movement.
До питання визначення точності уявної густини вугілля для встановлення викидонебезпечності шахтопластів
Authors: Руднєв Є.С. , Філатьєва Е.М. , Попович В.А. , Антощенко М.І.
Published: September 2024

В статті розглянуто можливість визначення уявної густини для прогнозу схильності вугільних пластів до прояву раптових викидів з використанням емпіричної залежності, яка отримана на підставі статистичної обробки показників технічного аналізу вугілля.
Методика заснована на порівняльному аналізі для кожного шахтопласта відповідності розрахункових значень уявної густини вугілля зі значеннями, які встановлені стандартним методом.
За результатами досліджень спостерігається практична відсутність кореляційної взаємозалежності між розрахунковими значеннями уявної густини та її величинами, які експериментально визначені за методикою загальноприйнятих стандартів. Це вказує на повну невідповідність точності визначення уявної густини вугілля відповідно до емпіричної залежності її значенням, встановленим стандартним методом. Близькість отриманих розрахункових значень уявної густини вугілля відповідно до емпіричних залежностей, з використанням відповідно одного показника виходу летких речовин (Vdaf) і трьох (виходу летких, вологи та виходу золи) впливаючих факторів, дає підставу аналізувати уявну густину вугілля тільки від Vdaf. В залежності від Vdaf, поліном ступеня другого порядку досить з високою тіснотою кореляційного зв’язку характеризує уявну густину вугілля визначену стандартним методом.
Достовірне визначення уявної густини вугілля можливе тільки стандартними методами, виключивши використання емпіричних залежностей із застосуванням показників технічного аналізу, що підтверджується значним середньоквадратичним відхиленням, яке перевищує в 1,5 рази точність визначення.
Вперше на підставі статистичної обробки експериментальних даних про уявну густину вугілля та показників технічного аналізу для 592 шахтопластів Донбасу та Львівсько-Волинського басейнів доведена неприпустимість використання розрахункових значень відповідно до емпіричних рівнянь для прогнозування схильності шахтопластів до раптових викидів вугілля та газу при веденні гірничих робіт.
Результати досліджень дозволяють розробити пропозиції щодо вдосконалення нормативної бази у частині прогнозу викидонебезпечності вугільних пластів.
Štovanje Lara (Lares) i nove spoznaje o Larima iz Salone
Authors: Jadrić-Kučan Ivana , Banovac Ivana
Published: September 2024

Među brojnim antičkim spomenicima Salone nalazi se i jedan vrlo zanimljiv reljef s prikazom Lara i natpisom pro salute Valeriani. Pronađen je prije 1885. godine kao spolij desno od ulaznih dvorišnih vrata u kući Plazibat u Splitu. Prvu detaljniju analizu spomenika izvršio je Nenad Cambi koji smatra da je riječ o posveti za spas cara Valerijana, čime su i prikazani carski Lari, Lares Augusti. Štovanje ovih malih božanstava kao obiteljskih čuvara i zaštitnika bilo je vrlo važno u životu svakog Rimljanina. Car August kao obnovitelj tradicionalne rimske religije 7. g. pr. Kr. obdario je postojeće bogove raskrižja svetišta (Lares Compitales) dodatnim epitetom vlastitog imena Augustus (Lares Augusti) i na taj način ih povezao s princepsom, odnosno samim sobom. Od tada se uzima da svi Lari s pridjevom Augusti postaju carski, s tim da to baš i nije bilo pravilo, što pokazuje i revizija ovog spomenika, te se u ovome tekstu iznose nova razmišljanja koja ukazuju da nije riječ o caru Valerijanu, već o gospodaru Valerijanu kojemu njegov rob podiže posvetu, a navedeni Lari unatoč epitetu Augusti nisu carski, već Uzvišeni Lari.
EFEKTIVITAS PEMUNGUTAN RETRIBUSI DAERAH PADA ORGANISASI PERANGKAT DAERAH DI PROVINSI BENGKULU
Authors: Yunita Asriyani Sari  , Abdullah
Published: September 2024

The title of this research is “Efektivitas Pemungutan Retribusi Daerah pada Organisasi Perangkat Daerah di Provinsi Bengkulu”. The objective of this research was taking the description about region retribution in Bengkulu city. The significance of this research was giving the information in the affectivities of taking region retribution on the OPD in Bengkulu province and can add the knowledge about the taking region retribution on the OPD in Bengkulu province. For the academician, it could be the reference and consideration to increase the income and have the new potential in the region retribution sector toward the income of Bengkulu province and this research could become a reference for the advance research. The methodology of this research was qualitative research. This research had been done since January 2019 up to Juny 2019 as the location survey, collecting the data, and analysis data. This research had been done to some of government instances in the Bengkulu province. The technique of collecting data was by using interview, observation, and documentation. Based on the analysis which had been done, so the result was the taking of region retribution in this province was effective.  The factors those made this was; the official on the related instances was sufficient; there was involvement of the leader in each instances actively controlled the activities of taking region retribution in Bengkulu province; there was cooperative as team so that the instances did not have problem in reporting and storing of the region retribution in the related instances. Based on the research results, so the researcher suggested that for the Badan pengelola Keuangan Daerah Provinsi Bengkulu, it would be better to increase the monitoring by checking suddenly or period, increase the monitoring processes, giving punishment for them those always arrear in storage their duty then increase the tax payment and the service which was given by the government instances. The further researches were suggested to take new side of the region retribution implementation and the quality of service by involving some of variables, such as the involvement management by involving government instances which more extensive in the Bengkulu province.
PENGARUH TOTAL QUALITY MANAGEMENT (TQM) DAN INOVASI PRODUK TERHADAP KEUNGGULAN BERSAING
Authors: Melda Novia Saputri  , Madani Hatta
Published: September 2024

This study aims to provide empirical evidence of the Effect of Total Quality Management (TQM) and Product Innovation on Competitive Advantage in the Convection and Printing business in Bengkulu City. The data used in this study are primary data, obtained by distributing questionnaires. The sample in this study was 37 convection and printing entrepreneurs in Bengkulu city who had opened a Convection and Printing business that had been operating for at least 5 years. The analysis technique uses the assistance of the SmartPLS 3.0 program. The results showed that Total Quality Management (TQM) contributes to Competitive Advantage and Product Innovation does not conflict with Competitive Advantage.
PENGARUH SISTEM INFORMASI AKUNTANSI MANAJEMEN, MOTIVASI KERJA, DAN KEPUASAN KERJA TERHADAP KINERJA MANAJERIAL
Authors: Lastri Delina  , Fitrawati Ilyas
Published: September 2024

This study aims to see the effect of management accounting information systems, work motivation, and job satisfaction on the managerial performance of managers and supervisors who work at hotel service companies in the city of Bengkulu. This study uses a quantitative approach. Respondents in this study are managers and supervisors who work in five-star hotels in Bengkulu. The sample selection in this study using purposive sampling. Sources of data in this study using primary data with a questionnaire. Data analysis using multiple linear regression analysis using the SPSS program.The results of this study indicate that there is a positive effect of management accounting information systems, work motivation, and job satisfaction on managerial performance, which means that the better the application of management accounting information systems, providing work motivation, and job satisfaction can improve managerial performance.Theoretically, the results of this study support the contingency theory which states that in carrying out their duties, managers need conformity to be able to implement a particular strategy. Contingency theory is a theory that is used as an analysis tool for forms and systems of management accounting, work motivation, and job satisfaction that are useful for providing information to companies, one of which is information to be able to face competition.The limitation in this study is the reduction in the sample because most of the hotel service companies in the capital city are temporarily closed, thus narrowing the results of this study to the number of samples that do not include all hotels in Bengkulu City.
PEMETAAN TOPIK PENELITIAN AKUNTANSI MANAJEMEN MAHASISWA PROGRAM STUDI S1 AKUNTANSI FAKULTAS EKONOMI DAN BISNIS UNIVERSITAS BENGKULU
Authors: Husna Karimah  , Lisa M.N Puspita
Published: September 2024

This study aims to map trends in research topics for undergraduate students in the Accounting Faculty of Economics and Business, University of Bengkulu. The data used are primary data from the results of observations or observations of the research in the Accounting Reference Room Building K University of Bengkulu. The number of samples in this study were 106 research titles. Data collection techniques with observation techniques in the form of direct observation of the research of accounting students with a purposive sampling method. Data analysis method used is analysis with tables and graphs using Microsoft Office Excel program.
PERSEPSI PENTINGNYA KEMAMPUAN KOMUNIKASI : PERBANDINGAN ANTARA AKUNTAN PROFESIONAL DAN MAHASISWA MAGISTER AKUNTANSI
Authors: Irwansyah Irwansyah
Published: September 2024

This research aims to test the communication capabilities and differences ofperception of the importance of communication skills among students with amaster's degree in professional accounting accounting. The study also tested theinfluence of communication ability against the perception of the importance ofcommunication skills. Primary data in this study were obtained from the master ofaccounting students University of bengkulu and professional accountants on theBPKP of bengkulu province by using a survey approach by disseminatingquestionnaires. The questionnaires were distributed to 90 respondents, but only75 questionnaires that can be analyzed or processed. Data analysis in this study isused Independent sample t-test and analysis of simple linear regression.The results showed that: (1) a professional accountant has interpersonalcommunication skills higher than master's degree accounting students, (2) aprofessional accountant has the perception of the importance of bettercommunication skills higher than master's degree accounting students, (3)communication skills has positive effect toward the perception of the importanceof communication skills.
Agnes Callard: Anger as a Social Emotion – Anger as an Appeal for Relationship Repair
Authors: Démuth Andrej , Démuthová Slávka
Published: September 2024

The proposed study focuses on anger as a social emotion, as depicted in the work of Agnes Callard: "On Anger." Anger is portrayed here as a signal of relational abuse and a call for its rectification. The authors reflect on Callard's text, contemplating anger as a manifestation of disrupted intimate relationships between individuals and considering the possibilities of a Schillerian understanding of anger within the bounds of charm and dignity. They point out that such charming anger would miss its effect; anger should primarily signal injustice. At the same time, they appreciate Callard's shift of focus from conveying a message of retaliation and revenge to an interest in restoring the original relationship. They emphasize that anger should not destroy relationships but rather seek to repair them, although it does not always succeed in doing so. The work is part of broader reflections by the authors on anger and its cognitive, moral, and social roles in our lives.
Mangroves as nursery habitats for Galapagos reef fishes
Authors: Aguaiza C , Mumby PJ , Rastoin-Laplane E , Aburto-Oropeza O , Salinas-De-León P
Published: September 2024

Mangroves offer key ecosystem services such as the provision of feeding, breeding, and nursery grounds to marine fish populations. The role of mangroves as fish nursery habitats is not ubiquitous and depends on factors such as species, geographic location, and environmental conditions. Studies of this nursery role for fish species are limited in the Tropical Eastern Pacific and particularly scarce for the Galapagos Islands. We used underwater visual censuses to survey fish species composition within mangrove forests and adjacent shallow rocky reefs across 6 of the Galapagos Islands. Adult densities of 3 commercially important reef fishes (Lutjanus argentiventris, L. novemfasciatus, and Mycteroperca olfax) were also surveyed in adjacent deep rocky reefs to investigate the relative importance and potential of mangroves in supporting their populations. Our study provides evidence that mangroves play a role as nursery habitats for reef fish species. Specifically, we identified Eucinostomus dowii, L. argentiventris, Mugil spp., Mycteroperca olfax, Sphoeroides annulatus, Stegastes arcifrons, and Scarus ghobban as mangrove nursery species, as their juvenile densities were significantly higher in mangroves than in shallow rocky reefs. Additionally, 19 other fish species, primarily juveniles, were exclusively observed within mangrove habitats. We found that the extent of mangrove perimeter within 10 km of deep reefs positively influenced the densities of adult L. argentiventris and M. olfax. Our results argue for the need to consider nursery ecosystem function in the design and management of the Galapagos Marine Reserve, since mangroves will directly contribute to the fisheries management of economically important species.
PREFEROVANÉ STRATÉGIE ZVLÁDANIA STRESU VO VZŤAHU K RIZIKU VYHORENIA SÚČASNÝCH UČITEĽOV
Authors:   Comenius University Bratislava, Ikhardt Peter , Haláková Zuzana ,   Comenius University Bratislava, Kunzová Dominika ,   Comenius University Bratislava, Ciceková Jana ,   Comenius University Bratislava
Published: September 2024

One of the possibilities to better understand the experience of burden in the teaching profession is to explore the typology of their behaviour and experience, and thus, if necessary, a possible intervention. To explore the experience of stress, coping and burnout, we used standardized questionnaires: Perceived Stress Scale, briefCOPE and Teacher Burnout Scale. 214 Slovak teachers from various primary and secondary schools and career phases participated in the research. We subjected the data to descriptive and bivariate analysis. To verify the hypothesis about the existence of typology, we used the K-means cluster analysis. The association between the level of stress experienced and burnout among teachers was confirmed. As pressure increases, the ability to adopt an adaptive coping strategy (focused on problem-solving or focused on emotions) decreases, and the tendency to prefer avoidant strategies increases, on the contrary. All the participants can be classified into one of the three types we diagnosed: those, who can´t handle it, hardy and frustrated (on the way to burnout). The results show a necessity to work more and systematically with in-service teachers to eliminate the negative impact of stress and burnout on their personal life, health, and profession.
ROVESNÍCKY MENTORING VO VYUČOVANÍ FYZIKY PRE ZÁKLADNÉ ŠKOLY
Authors:   Comenius University Bratislava, Sukeľová Tatiana , Velmovská Klára ,   Comenius University Bratislava
Published: September 2024

PEER MENTORING IN PHYSICS TEACHING FOR ELEMENTARY SCHOOLS Mentoring is widely used around the world in various industries. Therefore, it is not unusual that it started to be used in the teaching profession as well. Usually, more experienced teachers with many years of experience take on the role of mentor, and novice teachers are mentees. Mentoring has different forms – peer mentoring and cross-aged mentoring. At work, peer mentoring between classmates in the same elementary school class is being engaged in by us. Within the class, the mentors were the students chosen by the mentees, and the mentees included the rest of the class. During the teaching of physics, the mentors had various duties, which are described in more detail in the work, from answering the questions of their mentees to carrying out experiments. In the thesis, we present various studies from abroad, which are focused on mentoring in the teacher-teacher relationship and mentoring in the pupil-pupil relationship. In the case study, the process of introducing mentoring into teaching is described by us, how the students chose their mentors, and what duties the mentors had, and the individual activities that were the duty of the mentors are also described by us. At the end of the case study, the findings from our survey are presented, what differences would be made in the future by us, what was beneficial, and how the pupils perceived mentoring.
An Introduction to Late Antique Cross-Craft Studies
Authors: Meredith Hallie G. , Murphy Elizabeth A.
Published: September 2024

The study of crafts and trades in the ancient Mediterranean world has garnered increased attention over the last decade, including through the investigation of cross-craft or inter-industry relations among craft producers. This body of literature represents a range of distinct approaches – including co-production, cross-craft interaction, skeuomorphism, and multicraft – each derived from different disciplinary perspectives, yet collectively these inter-industry approaches are offering new and important perspectives on social and professional networks of artisans, technological developments, and economic organisation of ancient industries. In this introductory chapter, we outline the current trajectories in cross-craft studies and their too often overlooked significance for the study of Late Antiquity.
Dyson--Schwinger Equations, Renormalization Conditions, and the Hopf Algebra of Perturbative Quantum Field Theory: An Advanced Mathematical and Physical Analysis
Authors: CHEN WEN-XIANG
Published: September 2024

This paper delves into the complex mathematical structures and physical applications underlying the work \textit{Dyson--Schwinger Equations, Renormalization Conditions, and the Hopf Algebra of Perturbative Quantum Field Theory} by Paul-Hermann Balduf. We provide an exhaustive treatment of the Dyson-Schwinger equations (DSEs), renormalization methods, Laurent series, residue calculus, Hopf algebras, and advanced loop integral techniques in quantum field theory (QFT). The focus is on detailed derivations, high-level mathematical tools, and intricate applications in quantum field theory. This paper highlights the mathematical depth and sophisticated physical insights required to navigate the landscape of perturbative and non-perturbative quantum field theory.
Deciphering the Quantum Code of Life: The Crystal Electron Cloud Hypothesis.
Authors: Norman Ibbotson James , Shekhar Sushant
Published: September 2024

The Crystal Electron Cloud Hypothesis proposes that crystals and living things both have an electronic wave function of electrons around them, which can interact with each other in various ways. This interaction could have implications for a variety of biological processes, including consciousness, perception, and healing. The hypothesis is based on the idea that crystals and living things both have organized structures, but in different ways. Crystalline solids have a highly ordered internal lattice structure with geometric symmetry and repetition of base units, while cellular organisms have an internal lattice-like structure of cells adhering to each other, but this cellular lattice is more variable and irregular without the strict symmetry and repetition of a crystal. The organisation in organisms is more flexible and dynamic - cells move, grow, differentiate, die, and the overall organism morphology changes over time while maintaining an ordered arrangement suited to function.
Computation of the Riemann Zeta Function equal to the Harmonic Series
Authors: Annamalai Chinnaraji
Published: September 2024

The Riemann zeta function is the most important special function in the significantly large family of zeta-functions. This paper presents a theorem that related to the harmonic series and the Riemann zeta function.
Pontos de inflexão no processo de institucionalização da matemática na sociedade
Authors: Attie João Paulo , Moura Manoel Oriosvaldo de
Published: September 2024

Este artigo teve como objetivo apontar o que se consideram ser os quatro marcos históricos fundamentais responsáveis pela atual importância com que a matemática se apresenta para a sociedade. Para a identificação desses pontos, foi realizada uma pesquisa bibliográfica de caráter teórico, que foi viabilizada por uma revisão da literatura, na qual foram seguidas algumas etapas específicas, tais como a seleção do material, a leitura e a análise dos textos, o fichamento do material encontrado e, por fim, uma análise final das informações para a elaboração do artigo. Os marcos encontrados foram a construção da Geometria Dedutiva, o desenvolvimento da Álgebra Simbólica e da Geometria Analítica, a estruturação do Cálculo e a aliança entre a Lógica Simbólica e a Tecnologia. Ao final, é assinalado o paradoxo que vai se consolidando nesse processo histórico, de que, mesmo sendo cada vez maior a presença do conhecimento matemático nas instituições, na vida cotidiana e na produção de bens, se torna também crescente a invisibilidade desse tipo de conhecimento nesses mesmos espaços, ou seja, nas instituições, no cotidiano e na cadeia produtiva.
Argumentação, Demonstração e Complexidade
Authors: Levy Lenio Fernandes
Published: September 2024

A investigação descrita nas páginas a seguir é de cariz teórico. Volta-se para a possibilidade de transformações nas identidades dos matemáticos e dos professores de matemática. Matemáticos e professores de matemática (escolar e universitária) diferenciam argumentar de demonstrar, vinculando a argumentação mais à matemática elementar ou escolar, e a demonstração mais à matemática científica ou acadêmica. Contudo, argumentar e demonstrar não se restringem, quanto às suas características, a processos distintos. Argumentação e demonstração são contrastantes, sim, e até opostas; porém, fazendo-se uso de uma lógica não aristotélica, pode-se afirmar que, além de oporem-se, argumentação e demonstração completam-se: trata-se do princípio complexo dialógico. Outros dois princípios complexos a que também se recorre, neste trabalho dissertativo, para lidar com argumentação e demonstração, são o recursivo e o hologramático. Crê-se que discussões epistêmicas no sentido aqui recomendado, abrangendo docentes e discentes, nos âmbitos escolar e universitário, contribuam para alterar a concepção acerca dos papéis que a argumentação e a demonstração desempenham nas dinâmicas matemáticas, estimulando modificações nas identidades dos matemáticos e dos professores de matemática (elementar e acadêmica).
Análise de Erros em produções de estudantes do Ensino Médio em provas da OBMEP-2019 em São Luis, Maranhão
Authors: Sales Araujo Valdiane , Carvalho Renata de Farias Limeira , Dias Rosani Brune de Almeida , Maciel Domício Magalhães
Published: September 2024

Esta pesquisa apresenta resultados de um projeto de investigação que tem como objetivo analisar os erros cometidos por estudantes do Ensino  Médio, no Estado do Maranhão,  na prova da 15ª edição da Olimpíada Brasileira de Matemática das Escolas Públicas-OBMEP.  Apresentam-se os resultados da pesquisa referentes a São Luís, capital do Estado, questão 6, que envolve a Análise Combinatória. Trata-se de uma pesquisa quali-quantitativa, tendo como base a Análise de Erros e outros referenciais da área de Avaliação em Educação Matemática. Sustentada pela Análise de Conteúdo, constituíram-se três categorias, das quais, neste artigo, a categoria O enunciado da questão não é tomado como base para a resolução da questão é apresentada. Evidenciaram-se passos nas resoluções em que o enunciado não foi tomado como orientação para a resolução, bem como as trocas citadas não foram executadas, além de não levarem à solução. Isso permitiu concluir que os estudantes que responderam as questões analisadas tiveram dificuldade em interpretar os enunciados dos problemas, além da falta de habilidade em aplicar os conceitos matemáticos e regras na resolução de problemas.
O uso estratégico do Desenho em Atividades de Modelagem Matemática
Authors: Talita Dutra da hora  , Almeida Lourdes Maria Werle de
Published: September 2024

O artigo tem como objetivo investigar como o uso do desenho pode colaborar para o desenvolvimento de atividades de modelagem matemática. O quadro teórico considera aspectos da modelagem matemática e seu uso nasala de aula, bem como elementos relativos ao uso do desenho como conhecimento estratégico. A investigação, de cunho qualitativo, refere-se a atividades de modelagem matemática desenvolvidas por estudantes do 5° ano do Ensino Fundamental. A análise dos dados foi inspirada nos procedimentos da análise qualitativa de conteúdo. O processo analítico permite inferir que a busca por soluções para o problema definido em cada atividade foi mediada pelo conhecimento estratégico do uso de desenhos. Embora os estudantes tenham construído desenhos espontâneos, em alguns momentos foi a partir da intervenção da professora que essa construção se tornou eficiente para as demandas da atividade de modelagem. Resultados apontam que, classificados como situacionais ou como esboços, os desenhos construídos promovem ações em diferentes fases do desenvolvimento das atividades, sendo evidenciados processos cognitivos e metacognitivos subjacentes à construção do desenho. É possível concluir, portanto, que a introdução da modelagem matemática nos iniciais pode encontrar no uso estratégico do desenho um suporte para encorajar professor e estudantes.
A Proposição 1 de Arquimedes na formação de professores indígenas de Matemática
Authors: Polegatti Geraldo Aparecido , Pereira das Dores Savioli Angela Marta , Linhares de Mattos José Roberto , Nascimento de Mattos Sandra Maria
Published: September 2024

Neste artigo, apresentamos uma pesquisa participativa, com a colaboração de seis acadêmicos indígenas de Matemática, da etnia Pataxó, em meio à Licenciatura Intercultural Indígena do Instituto Federal da Bahia no campus de Porto Seguro. Nosso objetivo foi ressaltar a importância de utilizarmos tópicos de História da Matemática, em consonância com preceitos da Etnomatemática, no desenvolvimento de processos de ensino e aprendizagem da Matemática. Então, em consonância com os acadêmicos indígenas promovemos a construção da fórmula matemática que utilizamos para calcular a área deum círculo. Assim, partimos da proposição 1 de Arquimedes descrita em seu livro “A Medida do Círculo”, a qual nos inspirou a encomendar dois sólidos geométricos em madeira (Cedro), que foram confeccionados sob medida por um artesão indígena da etnia Pataxó. A atividade ainda envolve o conceito físico de massa específica. Os dados foram coletados, concomitante, ao desenvolvimento da atividade e por meio de um questionário composto por três questões ao seu final. A atividade se mostrou promissora no cenário de formação de professores indígenas de Matemática, bem como pode ser realizada para além desse contexto educacional, por exemplo, no âmbito do Educação Básica, e nos processos de formação inicial ou continuada de professores que ensinam Matemática.
Stimulation of fracture mineralization by salt-inducible kinase inhibitors
Authors: Momenzadeh Kaveh , Yeritsyan Diana , Abbasian Mohammadreza , Kheir Nadim , Hanna Philip , Wang Jialiang , Dosta Pere , Papaioannou Garyfallia , Goldfarb Sarah , Tang Cheng-Chia , Amar-Lewis Eliz , Nicole Prado Larrea Michaela , Martinez Lozano Edith , Yousef Mohamed , Wixted John , Wein Marc , Artzi Natalie , Nazarian Ara
Published: September 2024

Introduction

Over 6.8 million fractures occur annually in the US, with 10% experiencing delayed- or non-union. Anabolic therapeutics like PTH analogs stimulate fracture repair, and small molecule salt inducible kinase (SIK) inhibitors mimic PTH action. This study tests whether the SIK inhibitor YKL-05-099 accelerates fracture callus osteogenesis.

Methods

126 female mice underwent femoral shaft pinning and midshaft fracture, receiving daily injections of PBS, YKL-05-099, or PTH. Callus tissues were analyzed via RT-qPCR, histology, single-cell RNA-seq, and μCT imaging. Biomechanical testing evaluated tissue rigidity. A hydrogel-based delivery system for PTH and siRNAs targeting SIK2/SIK3 was developed and tested.

Results

YKL-05-099 and PTH-treated mice showed higher mineralized callus volume fraction and improved structural rigidity. RNA-seq indicated YKL-05-099 increased osteoblast subsets and reduced chondrocyte precursors. Hydrogel-released siRNAs maintained target knockdown, accelerating callus mineralization.

Discussion

YKL-05-099 enhances fracture repair, supporting selective SIK inhibitors’ development for clinical use. Hydrogel-based siRNA delivery offers targeted localized treatment at fracture sites.
Verification, validation, and uncertainty quantification (VVUQ) in structural analysis of concrete dams
Authors: Salamon Jerzy W. , Hariri-Ardebili M. Amin
Published: September 2024

Over the past three decades, advancements in computational power and numerical methods have significantly enhanced the role of structural analyses in the design and safety assessment of dams. Simulating concrete dam behavior, particularly in interactions with reservoir water and rock foundations, poses formidable computational challenges. Additionally, the need to define uncertainties related to material parameters, loading conditions, and modeling strategy adds complexity to the modeling process, therefore, quantifying sources of uncertainty is crucial for maintaining credibility and confidence in analysis results. This paper provides a synthesis and an overview of existing research and presents a generic framework for evaluating the credibility of advanced structural analysis methods for concrete dams, with a focus on their limitations and associated uncertainties. The methodology includes a comprehensive process for structural analysis, verification, validation, and uncertainty quantification, aiming to facilitate condition assessments of concrete dams.
A non-classical synthetic strategy for organic mesocrystals
Authors: Wang Shaoyan , Tran Thu Ha , Jia Jia , Feng Yuhua
Published: September 2024

Mesocrystals are ordered nanoparticle superstructures, often with internal porosity, which receive much recent research interest in catalysis, energy storage, sensors, and biomedicine area. Understanding the mechanism of synthetic routes is essential for precise control of size and structure that affect the function of mesocrystals. The classical synthetic strategy of mesocrystal was formed via self-assembly of nanoparticles with a faceted inorganic core but a denser (or thicker) shell of organic molecules. However, the potential materials and synthetic handles still need to be explored to meet new applications. In this work, we develop a non-classical synthetic strategy for organic molecules, such as tetrakis (4-hydroxyphenyl) ethylene (TPE-4OH), tetrakis (4-bromophenyl) ethylene (TPE-4Br), and benzopinacole, to produce mesocrystals with composed of microrod arrays via co-solvent-induced crystal transformation. The aligned nanorods are grown epitaxially onto organic microplates, directed by small lattice mismatch between plates and rods. Thus, the present work offers general synthetic handle for establishing well-organized organic mesocrystals.
Communicating science addressing contentious environmental issues: utilizing Luhmann's social systems theory
Authors: van Kempen Anke , Feldpausch-Parker Andrea M.
Published: September 2024

For complex and socially contentious environmental issues, such as climate change and disease prevention, science communication has proven difficult. As many science communication scholars have determined, education is not the only factor impacting the public's willingness to act upon or even accept scientific information. In this study, we propose using Niklas Luhmann's theory of social systems as a framework for research in science and environmental communication. We argue that by focusing on the functions of relevant social systems, the occurrence of communication conflicts may be explained, and new approaches to overcome communication obstacles can be developed. In this study, we provide examples of the theory's utility by looking at pertinent studies regarding relevant systems integral to addressing climate change and sustainability issues, as well as propose new subjects for exploration.
The (im)possibility of communication with nonhuman beings: with digital screen printing of luminous bacteria
Authors: Saeki Takumi , Masuda Nobuhiro , Jo Kazuhiro
Published: September 2024

In the current media environment, John Durham Peters emphasizes the importance of non-verbal communication and notes that underpinned by digital technology, “media” is returning to its original meaning as the milieu that surrounds living beings. To concretize and critically discuss this idea, this paper examines the artworks created by the authors, which incorporate microorganisms into digital technology. These works applied luminous bacteria as ink to digitally screen print text and images. The first work, A Medium for Images or Luminous Bacteria (2022), prints Japanese text with luminous bacteria ink. The second work, ‘イ(I)’ (1926) by BioLuminescent Bacteria (2024), recreates the first image in the history of Japanese television, ‘イ(I)’, with luminous bacteria. This paper compares and analyzes these practices in light of classical media theory, including the work of William Ivins Jr. and Marshall McLuhan. The paper introduces another work, Grow.|Glow. (2023), to further expand the discussion to contemporary digital media. Finally, drawing on the recent arguments of Anna Tsing and Antonio Damasio, we elucidate the critical implications that the works of luminous bacteria bring to the current media environment.
Unveiling sex-disparities and the impact of gender-affirming hormone therapy on periodontal health
Authors: Villar Cristina Cunha , Sloniak Mariane Cristina , Assis Josiane Betim de , Porto Renata Cassiano , Romito Giuseppe Alexandre
Published: September 2024

Introduction

As personalized medicine advances, the need to explore periodontal health across different sexes and gender identities becomes crucial. This narrative review addresses the gap in understanding how biological sex and gender-affirming hormone therapy (GAHT) influence periodontitis risk.

Results

Research has uncovered significant sex-based immunological disparities driven by X and Y chromosome gene expression and sex-hormones, which may influence susceptibility to periodontitis. Additionally, preliminary findings suggest that GAHT, particularly testosterone therapy in transgender men, could exacerbate pro-inflammatory cytokine production and alter immune cell responses, which may exacerbate inflammatory pathways crucial in the progression of periodontitis. Conversely, the effects of estrogen therapy in transgender women, although less extensively studied, suggest modifications in B cell functionality. These observations highlight the complex role of GAHT in modulating immune responses that are central to the development and exacerbation of periodontal disease.

Discussion

The review highlights a complex interaction between sex hormones, gene expression patterns, immune responses, and periodontitis risk. While cisgender males show increased susceptibility to periodontitis that could be linked to specific immune pathways, GAHT appears to modify these pathways in transgender individuals, potentially altering their risk and disease progression patterns.

Conclusion

There is a critical need for more focused research on the direct impacts of GAHT on periodontal health. Understanding the nuances of immune modulation by GAHT will aid in crafting personalized periodontal care for transgender individuals, aligning with the broader goals of inclusive and effective healthcare.
Vertebral marrow fat fraction is associated with circulating RANKL in postmenopausal females
Authors: Li Xuefeng , Zuo Xiaoyong , Lu Li , Xu Run , Wang Ying , Chang Shixin , Wang Yi , Luo Peng , Li Guanwu
Published: September 2024

Objective

To investigate the relationship between circulating receptor activator of nuclear factor-kappa B ligand (RANKL) levels and marrow adipose tissue in postmenopausal females.

Methods

A total of 164 postmenopausal females were included in the study. Serum levels of osteoprotegerin (OPG) and RANKL were measured using ELISA kits. Body composition and bone mineral density (BMD) were assessed using dual-energy X-ray absorptiometry. Complex-based chemical shift imaging-based MRI was employed to evaluate the vertebral marrow proton density fat fraction (PDFF). A multivariate linear regression model was utilized to analyze the predictive effects of PDFF and BMD on circulating levels of OPG and RANKL.

Results

Simple regression analysis showed significant associations among the marrow PDFF, BMD at either site, serum RANKL, and the RANKL/OPG ratio. In multivariate linear regression models, marrow PDFF was found to have a positive correlation (β = 3.15, 95% CI 2.60 to 3.70) and BMD had negative correlations (β = −0.200, 95% CI −0.348 to −0.051 for vertebral BMD; β = −0.383, 95% CI −0.589 to −0.177 for total hip BMD; and β =−0.393, 95% CI −0.598 to −0.188 for femoral neck BMD, all p < 0.01) with circulating soluble RANKL levels after adjusting for age, body mass index, physical activity, total fat mass, android/gynoid ratio, and lean mass. Similar results were observed for the RANKL/OPG ratio. Additionally, multivariate linear regression analyses revealed that marrow PDFF was a significant independent contributor of circulating soluble RANKL (β = 1.34, 95% CI 1.10 to 1.58, p < 0.001) after further controlling for BMD. However, marrow PDFF or BMD had no associations with circulating levels of OPG after adjusting for all potential confounders mentioned above.

Conclusions

Vertebral marrow fat fraction is independently associated with circulating soluble RANKL levels in postmenopausal females.
Directly targeting PRDM16 in thermogenic adipose tissue to treat obesity and its related metabolic diseases
Authors: Mao Liufeng , Lu Jinli , Hou Yunliang , Nie Tao
Published: September 2024

Obesity is increasing globally and is closely associated with a range of metabolic disorders, including metabolic associated fatty liver disease, diabetes, and cardiovascular diseases. An effective strategy to combat obesity involves stimulating brown and beige adipocyte thermogenesis, which significantly enhances energy expenditure. Recent research has underscored the vital role of PRDM16 in the development and functionality of thermogenic adipocytes. Consequently, PRDM16 has been identified as a potential therapeutic target for obesity and its related metabolic disorders. This review comprehensively examines various studies that focus on combating obesity by directly targeting PRDM16 in adipose tissue.
Quantifying rain-driven NO3-N dynamics in headwater: value of applying SISO system identification to multiple variables monitored at the same high frequency
Authors: Chappell Nick A.
Published: September 2024

The nitrate–nitrogen (NO3-N) concentration is a key variable affecting the ecosystem services supported by headwater streams. The availability of such data monitored continuously at a high frequency (in parallel to hydrometric and other water quality data) potentially permits a greater insight into the dynamics of this key variable. This study demonstrates how single-input single-output (SISO) system identification tools can make better use of these high-frequency data to identify a reduced number of numerical characteristics that support new explanatory hypotheses of rain-driven NO3-N dynamics. A second-order watershed managed for commercial forestry in upland Wales (United Kingdom) provided the illustrative data. Fifteen-minute rainfall time series were used to simulate NO3-N concentration dynamics and the potentially associated dynamics in dissolved organic carbon (DOC) and runoff, monitored at the same high resolution for two 30-day periods with a differing temperature regime. The approach identified robust, high-efficiency models needing few parameters. Comparison of only three derived dynamic response characteristics (DRCs) of δ, TC, and SSG for the three variables for the two different periods led to new hypotheses of rain-driven NO3-N dynamics for further exploratory field investigation.
Association of breastfeeding duration with overweight and obesity among women in Ghana
Authors: Tuoyire Derek Anamaale , Tampah-Naah Anthony Mwinilanaa
Published: September 2024

Background

There is a general concurrence on the health benefits that breastfeeding confers to children, including offering maximal protection against obesity across their life course. However, the scientific evidence on similar benefits for women who breastfeed their children remains inconclusive. This study contributes to the discourse by examining the association of breastfeeding duration with overweight and obesity among women in Ghana.

Methods

Data on 8,516 women of reproductive age were pooled from the last five (5) Ghana Demographic and Health Surveys, and analysed using descriptive proportions and logistic regression models.

Results

The prevalence of overweight and obesity was about 8% lower for women who breastfed their children beyond 18 months (overweight = 13%, obesity = 5%) compared with women who did not breastfeed (overweight = 21%, obesity = 13%) their children at all. With reference to women who did not breastfeed their children, a significant lower odds of obesity was observed for those who breastfed their children for 13–18 months (OR = 0.46, 95% CI = 0.268, 0.864) and >18 months (OR = 0.41, 95% CI = 0.216, 0.764), after adjusting for possible confounding factors.

Discussion

Women who breastfeed their children for a minimum of 12 months have lower risk of developing obesity. Promoting prolonged breastfeeding among mothers could be an effective pathway to preventing obesity among women in Ghana.
Effect of inflammatory cytokines and plasma metabolome on OSA: a bidirectional two- sample Mendelian randomization study and mediation analysis
Authors: Sun Xin , Wang Congying , He Yuheng , Chen Kun , Miao YingZhang
Published: September 2024

Background

Obstructive sleep apnea (OSA) is a common sleep disorder. Inflammatory factors and plasma metabolites are important in assessing its progression. However, the causal relationship between them and OSA remains unclear, hampering early clinical diagnosis and treatment decisions.

Methods

We conducted a large-scale study using data from the FinnGen database, with 43,901 cases and 366,484 controls for our discovery MR analysis. We employed 91 plasma proteins from 11 cohorts (totaling 14,824 participants of European descent) as instrumental variables (IVs). Additionally, we conducted a GWAS involving 13,818 cases and 463,035 controls to replicate the MR analysis. We primarily used the IVW method, supplemented by MR Egger, weighted median, simple mode, and weighted mode methods. Meta-analysis was used to synthesize MR findings, followed by tests for heterogeneity, pleiotropy, and sensitivity analysis (LOO). Reverse MR analysis was also performed to explore causal relationships.

Results

The meta-analysis showed a correlation between elevated Eotaxin levels and an increased risk of OSA (OR=1.050, 95% CI: 1.008-1.096; p < 0.05). Furthermore, we found that the increased risk of OSA could be attributed to reduced levels of X-11849 and X-24978 (decreases of 7.1% and 8.4%, respectively). Sensitivity analysis results supported the reliability of these findings.

Conclusions

In this study, we uncovered a novel biomarker and identified two previously unknown metabolites strongly linked to OSA. These findings underscore the potential significance of inflammatory factors and metabolites in the genetic underpinnings of OSA development and prognosis.
The immunobiology of myelodysplastic neoplasms: a mini-review
Authors: Kannan Shruthi , Vedia Rolando A. , Molldrem Jeffrey J.
Published: September 2024

This mini review summarizes the immunobiology of myelodysplastic syndromes, specifically focusing on the interactions between immune cells, cytokines, and dysplastic cells within the tumor microenvironment in the bone marrow. We elucidate in detail how immune dysregulation and evasion influence the initiation and progression of myelodysplastic syndromes, as well as resistance to therapy and progression to AML. In addition, we highlight a range of therapeutic strategies, including the most recent breakthroughs and experimental therapies for treating MDS. Finally, we address the existing knowledge gaps in the understanding of the immunobiology of MDS and propose future research directions, promising advancements toward enhancing clinical outcomes and survival for patients with MDS.