bluuebunny/crossref_metadata_2025 huggingface dataset:
Economic Potential of Coastal Communities in Regional Development in Timbala Village, West Poleang District, Bombana Regency
Authors: Hasriyanti Hasriyanti , Asriyani Lili , Putri Ratri Harianti , Bachtiar Annursyah
Published: August 2024

This research aims to examine the economic potential of coastal areas as an effort to develop the region in Timbala Village, West Poleang District, Bombana Regency. This study uses a library research type that relies on various literature as sources of research data. The research results can conclud that Timbala Village has great potential for development because it offers various significant opportunities to improve community welfare. With a wealth of natural resources such as fisheries, tourism, and industry, Timbala Village has a strong foundation for local economic development. In addition, its tourism potential, including beaches, coral reefs, and marine biodiversity, can be a driving force for a sustainable economy. Infrastructure development and community empowerment are the keys to optimizing this potential. Through sustainable environmental conservation efforts and wise use of resources, it is hoped that Timbala Village can achieve a higher level of prosperity for its entire community. The synergy between various parties, including the government, community, and private sector, will be the key to success in developing the coastal potential of Timbala Village.
PENINGKATAN HASIL BELAJAR SISWA MENGGUNAKAN MEDIA AUDIO VISUAL PEMBELAJARAN MENYIMAK BERITA KELAS VIII-B SMPN 10 BANJARMASIN
Authors: Nabilla  , Muhammad Rafiek  , Mohammad Fatah Yasin
Published: August 2024

Penelitian ini bertujuan untuk mendeskripsikan pelaksanaan pembelajaran menyimak berita dan mendeskripsikan peningkatan hasil belajar siswa menggunakan media audio visual pada pembelajaran menyimak berita siswa kelas VIII-B SMP Negeri 10 Banjarmasin. Penelitian ini dilaksanakan dengan metode Penelitian Tindakan Kelas, dengan empat tahap pelaksanaan yaitu perencanaan, tindakan, observasi dan refleksi. Penelitian dilakukan dengan teknik observasi dan tes/ujian. Data yang terkumpul berupa lembar observasi aktivitas guru, aktivitas siswa, kemampuan menyimak dan hasil belajar siswa. Data yang telah terkumpul dianalisis menggunakan rumus persentase dan hasil belajar siswa minimal mencapai nilai 75 dengan nilai persentase 75%-100% siswa yang tuntas. Hasil penelitian menunjukkan bahwa pelaksanaan pembelajaran menyimak berita menggunakan media audio visual terlaksana dengan baik. Pada siklus I hasil belajar siswa memperoleh hasil 72,27% siswa yang mendapatkan nilai tuntas. Siklus II hasil belajar siswa memperoleh hasil 88,00% siswa yang mendapatkan nilai tuntas. Sehingga, peningkatan hasil belajar siswa menggunakan media audio visual berhasil mencapai indikator keberhasilan. Kata kunci: peningkatan, hasil belajar, dan media audio visual
The study is intended to describe the practice of listening to the news and describe the increased results of students' learning using visual audio media on the VIII-B Junior High School 10 Banjarmasin. The study is conducted using class action research methods, with the four stages of execution of planning, action, observation and reflection. Research is done with observation techniques and tests. The data collected is a teacher activity observation sheet, a student activity, the ability to pay attention and the student's learning results. The data collected is analyzed using the percentage formula and students' learning achieves a minimum of 75 with a 75%-100% student completed. Studies indicate that the practice of listening to the news using visual media is well accomplished. On the I cycle the results of student study earn 72.27% of the students who get the grade. The class ii cycle results from student study results from 88.00% of students who get a complete score. Thus, the increased results of students' learning using audio visual media have succeeded in reaching success indicators. Keyword: improvement, learning outcomes, and audio visual media
EFEKTIVITAS PENGGUNAAN FILM KAPAL GOYANG KAPTEN TERHADAP KEMAMPUAN MENULIS TEKS ANEKDOT PADA SISWA KELAS X MA AL-MUHAJIRIN ANTANG
Authors: Rizkiyah Aulia Rahma  , Muhammad Rafiek  , Faradina
Published: August 2024

Penelitian ini dilakukan dengan tujuan mengetahui efektivitas penggunaan film Kapal Goyang Kapten terhadap kemampuan menulis teks anekdot pada siswa kelas X MA Al-Muhajirin Antang dengan menilai berdasarkan aspek struktur dan kebahasaan. Menggunakan metode kuantitatif jenis penelitian kuasi eksperimen. Sumber data, yaitu kelas 10-2 dan kelas 10-3, data diperoleh dari hasil pretest dan posttest. Hasil penelitian menunjukkan bahwa sebelum menggunakan film Kapal Goyang Kapten terdapat 3 siswa berkategori tuntas (19%) dan 13 siswa berkategori tidak tuntas (81%), sedangkan setelah menggunakan film Kapal Goyang Kapten terdapat 14 siswa berkategori tuntas (93%) dan 1 siswa berkategori tidak tuntas dengan (7%). Hasil uji paired sample t test diketahui nilai Sig. (2-tailed) kelas eksperimen sebesar 0,000 < 0,05. Hasil uji independent sample t test diketahui bahwa nilai Sig. (2-tailed) adalah 0,001 < 0,05. Tingkat efektivitas penggunaan film Kapal Goyang Kapten terhadap kemampuan menulis teks anekdot pada siswa kelas X MA Al-Muhajirin Antang berkategori cukup efektif dengan nilai rata-rata N Gain (%) 73,40. Kata kunci: efektivitas, film, dan teks anekdot
This study was conducted with the aim of knowing the effectiveness of using the film “Kapal Goyang Kapten” on the ability to write anecdotal texts in class X MA Al-Muhajirin Antang by assessing based on structural and linguistic aspects. Using quantitative methods of quasi experimental research type. Data sources, namely class 10-2 and class 10-3, data obtained from pretest and posttest results. The results showed that before using the film “Kapal Goyang Kapten” there were 3 students categorized as complete (19%) and 13 students categorized as incomplete (81%), while after using the film “Kapal Goyang Kapten” there were 14 students categorized as complete (93%) and 1 student categorized as incomplete with (7%). The paired sample t test results show that the Sig. (2-tailed) experimental class of 0.000 <0.05. The independent sample t test results show that the Sig. (2-tailed) is 0.001 <0.05. The level of effectiveness of using the film “Kapal Goyang Kapten” on the ability to write anecdotal texts in class X MA Al-Muhajirin Antang students is categorized as quite effective with an average N-Gain (%) value of 73.40. Keywords: effectiveness, film, and anecdote text
PENGEMBANGAN MULTIMEDIA INTERAKTIF PADA PEMBELAJARAN RESENSI UNTUK PESERTA DIDIK KELAS XI SMAN 2 BANJARMASIN
Authors: Noor Asiah  , Sainul Hermawan  , Ahsani Taqwiem
Published: August 2024

This study aims to describe the needs of students, the feasibility of interactive multimedia, and students' responses to interactive multimedia review text. This study used the Research and Development (R&D) method, with a 4-D research model consisting of define, design, develop, and disseminate stages. The results of this study indicate that 100% of class XI students at SMAN 2 Banjarmasin have a high level of need and are interested in using interactive multimedia in learning review texts. Through the research results it is known that the interactive multimedia that has been developed is rated "Very Eligible" with an overall percentage of 94% by material and media experts. While the results of the responses of students get a value of "Very Positive" with an overall percentage of 89%. Based on the results of research and development, it can be concluded that interactive multimedia in learning review text for class XI students is appropriate for use in learning.
Developing technology of directed energy deposition of workpieces of parts of aircraft engines from heat-resistant nickel alloys by means of using layer-by-layer microplasma surfacing method
Authors: Balushok Konstantyn , Chygileichyk Sergii , Petryk Igor , Sakhno Sergii , Kulykovskyi Ruslan
Published: August 2024

The article presents the technology of the Directed Energy Deposition (DED) process using the method of layer-by-layer microplasma surfacing with powder and wire made from a heat-resistant nickel-based high-chromium alloy of the Ni-Cr-Ti-Al system (γ´ = 3–5 %), which is used for manufacturing workpieces of gas turbine engine parts, while ensuring a given level of mechanical properties required for the parts’ further operation. The article discusses the equipment and characteristic features of the DED technology using the continuous (layer-by-layer) microplasma surfacing method. The additive deposition was implemented on the STARWELD 190H robotic installation for microplasma powder surfacing and on the integrated installation based on the FANUC robot and the SBI plasma equipment by means of using wire made from a nickel-based alloy of the Ni-Cr-Ti-Al system (γ´ = 3–5 %). Following the deposition, such operations as the heat treatment (aging 900 °С, exposure 16 hours), the machining and the quality control were conducted. A set of studies was conducted to develop the evidence base for the purpose of determining the possibility of installing deposited workpieces in engines, with the studies being as follows: determining the chemical composition of workpieces deposited by means of a technology similar to depositing workpieces; implementing metallographic studies and mechanical tests. The authors state that studies conducted showed that the chemical composition of the deposited metal is in compliance with the requirements set forth in the regulatory documentation, and the microstructure of the deposited metal after the heat treatment corresponds to the normally heat-treated state of a low-aging nickel-based high-chromium alloy of the Ni-Cr-Ti-Al system (γ´ = 3–5 %),while the level of mechani-cal properties of the deposited alloy followed by the serial heat treatment (aging 900 °С, holding for 16 hours) is not lower than the level of the forging implemented in the serial production of this type of parts.
The effect of heat input on mass fraction of nanocomponents fed into the weld pool
Authors: Kuznetsov Valerii , Stepanov Denys , Pashchenko Valeriy
Published: August 2024

It is shown that surfacing with feeding Nano oxides or Nano carbides into the weld pool leads to significant increase the wear resistance of deposited metal. Meanwhile, the information available in the literature on the optimal concentrations of Nano components corresponds only to specific surfacing conditions. Other surfacing conditions require additional experimental studies to determine optimal concentrations under these new conditions. Theoretical studies revealed that a change in the heat input of surfacing is accompanied by a change in the volume and mass of the weld pool, which leads to the changes in the mass concentrations of Nano components. It is shown that, the volume and mass of the weld pool may change almost by 3 times, and the mass percentage of Nano components by 2 times A method has been proposed for determining the mass fraction of Nano components in the weld pool at different heat inputs of surfacing. The experimental studies confirmed analytical predictions. The use of the proposed technique will make it possible to spread the technology of surfacing with feeding of Nano components into the weld pool without additional experimental studies.
Rheological models of trabecular structures joint implants obtained by additive processes
Authors: Salenko Oleksandr , Kryshchuk Mykola , Havrushkevych Nataliia , Habuzian Halina , Dzhulii Dmytro
Published: August 2024

Features of the structure of trabecular structures for the manufacture of implants of hip and knee joints and rheological models that can be used as a basis for analyzing the dynamics of biomechanical systems "bone-articulated implant" are considered. It is taken into account that the implant itself should be made in the form of a combined set of functional elements (or initial surfaces), the dynamic properties of which are variable and maximally adapted to the properties of the connected bone, which allows to preserve the initial properties of the bones of the joints as much as possible while ensuring the proper strength and reliability of the structure in as a whole The interdependence of the results of surgical intervention with the patient's initial condition, indications for treatment, his activity and possible postoperative complications was analyzed. An optimization function of the process of designing, manufacturing and operational support of implantation, which has probabilistic components, is proposed.It is shown that it is most appropriate to use the Burgers model when studying the dynamics of the "bone-articulated implant" components, and the trabeculae density coefficient can be a generalized characteristic of the formed trabecular structures, provided that the geometric parameters match the bone tissue.
The influence of fluid temperature on the flow characteristic of a three-way proportional flow control valve
Authors: Soldatkin Hlib , Gubarev Oleksandr
Published: August 2024

For the efficient operation of hydraulic systems of industrial and mobile hydraulic drives, it is important to consider the temperature of the fluid, which affects power losses, including hydro-mechanical losses, such as friction in pipes, and volume losses, such as losses due to leaks. For hydraulic systems with high requirements for the efficiency and accuracy of the positioning of the output link, considerable attention should be paid to the influence of the fluid temperature on the characteristics of the regulating equipment, a common type of which is the flow control valve. The article analyzes the schematic diagram, design features, and geometric parameters of the threeway flow control valve with pilot proportional control and the forces acting on its internal elements. Two hypotheses have been put forward, which connect the design features with the deviation of the flow through the flow control valve when the temperature of the fluid changes. An experimental study of the effect of temperature on the flow characteristics of the flow control valve was carried out. It was established that an increase in the temperature of the fluid reduces the flow through the flow control valve at a constant value of the control signal. A method of compensating the deviation from the initial flow setting by taking into account the current value of the temperature of the fluid in the control algorithm of the programmed logic controller is proposed. For the technical implementation of the proposed method, it is necessary to add temperature control to the hydraulic system and make changes to the control algorithm of the flow control valve.
Impact of Hydraulic System Pressure Changes on the Dynamic Properties of a Hydraulic Actuator
Authors: Yeremenko Roman
Published: August 2024

The object of the study is the dynamic properties of the hydraulic actuator of the aircraft control system. In order to improve the stability and controllability of an aircraft, it is necessary to determine the regularity of changes in the dynamic parameters of the actuator (phase and amplitude margins, resonant peak frequency and amplitude, etc.) depending on changes in the pressure of the hydraulic system. As a result of the study performed using the available mathematical model, the dependence of the dynamic parameters of the hydraulic actuator of the specified kinematic scheme on the supply pressure was obtained. It was found that with an increase in supply pressure, the dynamic parameters of the actuator deteriorate: phase and amplitude margins decrease, peak resonance amplitude increases, and resonance frequency decreases. However, for a more accurate quantitative assessment, further research with a refined mathematical model is necessary. The obtained results can be applied in the future to optimize the operating conditions of actuators for aircraft control systems, the power source of which is a constant delivery pump working in conjunction with a hydraulic accumulator and a hydro-mechanical pump unloading mechanism.
História Temática no Ensino Médio: análise das práticas educativas sobre Segunda Guerra Mundial e Holocausto no Estágio Supervisionado
Authors: Hass da Silva Eduardo Cristiano
Published: August 2024

O texto analisa o conjunto de práticas de ensino realizadas no Estágio Supervisionado em História, do curso de Licenciatura. Inseridas em uma perspectiva de História Temática, as práticas estão relacionadas à Segunda Guerra Mundial e, em especial, ao Holocausto, atentando para os principais grupos vítimas da perseguição nazifascista. O objetivo do artigo consiste em analisar a prática de ensino, apontando possibilidades para que seja aplicada por outros professores. O texto fundamenta-se nos estudos sobre Ensino de História, recorrendo aos conceitos de História Temática, bem como a estudos sobre Livro Didático e Fontes Históricas em sala de aula. As conclusões são parciais, apontando a possibilidade de uso das práticas analisadas por outros professores e destacando a importância de reflexão sobre a prática.
História local: reflexões sobre o ensino e a pesquisa das histórias indígena e afro-brasileira
Authors: Vieira Lorena Oliveira , Dias Tailane de Oliveira
Published: August 2024

O presente artigo visa refletir sobre teorias e metodologias de ensino partindo da relação intrínseca que há entre o trabalho do/a professor/a e do/a pesquisador/a com base nos possíveis usos de relatos orais e escritos no âmbito local. Procuramos, com isso, versar sobre as leis 10.639/03 e 11.645/08 tratando das questões de história Afro-brasileira e Indígena a partir de um estudo de caso sobre o município de Paula Cândido (antigo São José do Barroso), que se localiza a, aproximadamente, 230 km da capital mineira Belo Horizonte.
Representações do Egito Antigo na Coleção Sérgio Buarque de Hollanda: um estudo de História da civilização
Authors: Da Silva Fábio Alexandre
Published: August 2024

Buscando compreender o modo como a historiografia tem representado o Egito Antigo em livros didáticos, este artigo objetiva explicitar, a partir do estudo da produção didática de Sérgio Buarque de Holanda, como o autor narra e representa imageticamente a civilização egípcia em História da Civilização. Para tanto, retoma-se a formação histórica do Egito e traceja-se um painel teórico sobre as representações imagéticas em manuais escolares, seguida da análise da iconografia egípcia no livro-fonte selecionado. Assim, constata-se que embora a iconografia estudada represente aspectos cotidianos da sociedade egípcia, seu emprego explicita uma desvinculação com o seu próprio caráter pedagógico, já que as imagens são utilizadas, em geral, de forma decorativa.
Escola de favela, aula de História e alunos evangélicos
Authors: Maia Alline de Assis Xavier
Published: August 2024

A proposta deste artigo é trazer algumas reflexões que visam compreender o universo simbólico que forma os alunos que se identificam como evangélicos em território de favelas. Laville (1999) enfatizou que a disciplina de História se configura como uma das mais sujeita a intervenções governamentais. No caso brasileiro, nos últimos anos, em virtude de uma gama de conceitos que o ensino da disciplina evoca, assistimos ataques por parte de alguns políticos aos professores e que por vezes se refletem na sala de aula. Sendo a docência, segundo Tardif (2014), um trabalho interativo sobre e com o outro considero importante para o ensino de história o mapeamento desses jovens, uma vez que os evangélicos têm chegado com força às escolas públicas.
Editorial: A Revista História Hoje e o Ensino de História: entre o presente, o passado e o futuro
Authors: Da Silva Mônica Martins
Published: August 2024

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Ensino de histórias do possível sobre as mulheres na “pré-história”
Authors: Rodrigues Susane
Published: August 2024

Partindo da análise de representações de gênero construídas sobre a “pré-história” no livro didático Oficina de História, aprovado no PNLD de 2018 para o Ensino Médio, o artigo discute os modos de subjetivação nas narrativas sobre sexualidade e divisão sexual do trabalho nos períodos Paleolítico e Neolítico. Enfatizando a necessidade de “desconstrução” dessas representações no ensino de História, aborda ainda uma série de evidências arqueológicas que desafiam as suposições sobre a inferiorização e dependência das mulheres nesses períodos. Tais evidências endossam as histórias do possível que permitem questionar a concepção das desigualdades de gênero como princípios naturais da “evolução” humana e da organização social, favorecendo o reconhecimento da historicidade e pluralidade das concepções e relações de gênero no tempo, bem como a desnaturalização de discursos e práticas que educam para a normalidade e continuidade da dominação heteropatriarcal.
Entrevista com Rosana Fernandes
Authors: Oliveira Samuel Silva Rodrigues de , Pucu Wollmann do Amaral Luciana , Torres da Silva Claudiane , Fontes Paulo
Published: August 2024

Rosana Fernandes é coordenadora geral da Escola Nacional Florestan Fernandes (ENFF), instituição mantida pelo Movimento dos Trabalhadores Rurais Sem Terra (MST). Licenciada em Pedagogia (2003) pela Universidade do Estado do Mato Grosso (UEMT), mestre em Desenvolvimento Territorial na América Latina e Caribe (2005) pela Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) e doutoranda em Educação pela Universidade Estadual de Campinas (UNICAMP), ela teve sua trajetória intelectual e política vinculada à docência e militância no MST.
A entrevista foi organizada coletivamente pelo Laboratório de Estudos de História  dos Mundo do Trabalho (LEHTM-UFRJ), sob supervisão de Paulo Fontes, e realizada por Samuel Oliveira, Luciana Wollmann e Claudiane Torres, editores do dossiê na revista História Hoje. Ela ocorreu de maneira virtual em 04 de abril de 2023, pela plataforma Zoom, com Rosana Fernandes nos atendendo em seu horário de trabalho, na sala da coordenação da ENFF; a transcrição e a edição do material ocorreram entre os meses de maio e junho. O material aqui publicado foi atravessado pela conjuntura do primeiro semestre de 2023, com o debate sobre o Novo Ensino Médio no Ministério da Educação e a tentativa da bancada conservadora da Câmara de Deputados de criminalizar o MST, através da criação de uma Comissão Parlamentar de Inquérito (CPI).
A entrevistada aborda sua trajetória na militância do MST, a “Pedagogia da Terra”, os projetos de educação ligados aos assentamentos, o trabalho na coordenação da ENFF, e as relações entre o ensino de história no campo e os mundos do trabalho. Mostra o esforço dos movimentos sociais em construir pedagogias emancipatórias e atentas a uma didática da história que coloque como central a noção de trabalho e de luta contra os diversos tipos de opressão na construção da cidadania e democracia no Brasil.
Debates, projetos e práticas no Ensino de História
Authors: Santiago Daiana
Published: August 2024

BEZERRA, Danilo Alves; RIBEIRO, Felipe Augusto dos Santos (Orgs.). Ensino de história: teorias, práticas e novas abordagens. Volume 3: “Patrimônio cultural, memórias, identidades e mundos do trabalho no ensino de História”. Recife: Edupe, 2023.
Mundos do trabalho nas minas de carvão
Authors: Gontarski Speranza Clarice , Mandelli Bruno , Nunes Bica Alan
Published: August 2024

O artigo discute uma experiência de integração entre História do Trabalho e ensino de História desenvolvida no Rio Grande do Sul. O projeto envolveu um curso para professores da rede básica de ensino sobre o tema do trabalho nas minas de carvão. As discussões empreendidas no curso informaram a produção e publicação de um livro paradidático também destinado à rede pública de ensino. Com base na proposta e desenvolvimento do curso, na elaboração do livro e na avaliação dos resultados, este estudo explora como a abordagem do trabalho nas minas pode dialogar com o conceito de trabalho presente na BNCC, além de discutir as implicações dessa abordagem para a problemática da história local e do ensino de História.
“Nos livros estão nomes de reis. Arrastaram eles os blocos de pedra?”
Authors: De Castro Gerbelli Caio Vinicius , Lirio da Cunha André Luiz
Published: August 2024

Este artigo tem como objetivo debater o Ensino de História Social do Trabalho na Educação de Jovens e Adultos da classe trabalhadora e a importância de que se incorpore uma abordagem que valorize as narrativas e perspectivas dos trabalhadores e as relacione com as experiências das trabalhadoras e trabalhadores no passado. Partimos do princípio da problematização dos educandos e educandas envolvidos nesse processo, levando em consideração suas vivências e experiências. O artigo explora o conceito relacionado aos “Mundos do Trabalho” e como este é central para a modalidade da EJA. Uma ênfase é dada à função social e política do ensino de história nesse contexto, permitindo compreender as relações de poder, as transformações sociais e os desafios enfrentados pela classe trabalhadora ao longo do tempo.
O Programming Historian em Português na promoção do letramento digital na sala de aula
Authors: Marques da Silva Juliana , Vieira Paulino Joana , Alves Daniel , Medeiros Jimmy , Higuchi Suemi
Published: August 2024

Este artigo apresenta a implementação do Programming Historian em Português (PtH), um repositório aberto de métodos em Humanidades Digitais que oferece lições de capacitação em ferramentas digitais. Detalha o processo de tradução, adaptação e envolvimento de alunos e alunas em colaboração internacional e explora a aplicação prática das lições em disciplinas lecionadas na (Anonimizado) (Lisboa, Portugal) e na (Anonimizado) (Rio de Janeiro, Brasil). Analisam-se o letramento digital dos estudantes e os reflexos da utilização do PtH, evidenciando a interconexão essencial entre pesquisa, ensino e tecnologia, especialmente em um contexto de transformações digitais. O artigo faz uma reflexão acerca da relevância das Humanidades Digitais no ensino superior, promovendo um diálogo interdisciplinar e uma abordagem prática de aprendizado.
CHARACTERISTICS OF SELF-ESTEEM AND AGGRESSIVENESS IN YOUNG MALES WITH DIFFERENT LEVELS OF INTERNET ADDICTION
Authors: Byelyayeva Nataliya
Published: August 2024

This article examines the psychological characteristics of young males with varying levels of internet addiction, particularly their self-esteem and aggressiveness. The relevance of the study is due to the increasing problems of internet addiction among youth, impacting their mental health, social adaptation, and development. Adolescence is a critical period for personality formation, where self-esteem and emotional stability are crucial.The study results showed that the majority of respondents demonstrate a low level of internet addiction, indicating a healthy attitude towards internet use. However, a significant portion of respondents with high levels of internet addiction requires further research and possible intervention. It was found that young males with low internet addiction levels predominantly exhibit average self-esteem and aggressiveness. In contrast, those with high internet addiction levels exhibit low self-esteem and high aggressiveness. The findings support the hypothesis that high internet addiction levels are associated with low self-esteem and high aggressiveness. The analysis revealed that the significant link between internet addiction and aggressiveness warrants attention to the mental health of this youth category. High aggressiveness can negatively impact interpersonal relationships, academic, and professional activities. The psychological characteristics of individuals with high and low levels of internet addiction differ significantly: the former show low self-esteem and high aggressiveness, while the latter exhibit average self-esteem and aggressiveness.
Utility of Machine Learning, Natural Language Processing, and Artificial Intelligence in Predicting Hospital Readmissions After Orthopaedic Surgery
Authors: Fares Mohamad Y. , Liu Harry H. , da Silva Etges Ana Paula Beck , Zhang Benjamin , Warner Jon J.P. , Olson Jeffrey J. , Fedorka Catherine J. , Khan Adam Z. , Best Matthew J. , Kirsch Jacob M. , Simon Jason E. , Sanders Brett , Costouros John G. , Zhang Xiaoran , Jones Porter , Haas Derek A. , Abboud Joseph A. ,   on behalf of The Avant-Garde Health and Codman Society Value-Based Care Group
Published: August 2024

Background:

Numerous applications and strategies have been utilized to help assess the trends and patterns of readmissions after orthopaedic surgery in an attempt to extrapolate possible risk factors and causative agents. The aim of this work is to systematically summarize the available literature on the extent to which natural language processing, machine learning, and artificial intelligence (AI) can help improve the predictability of hospital readmissions after orthopaedic and spine surgeries.

Methods:

This is a systematic review and meta-analysis. PubMed, Embase and Google Scholar were searched, up until August 30, 2023, for studies that explore the use of AI, natural language processing, and machine learning tools for the prediction of readmission rates after orthopedic procedures. Data regarding surgery type, patient population, readmission outcomes, advanced models utilized, comparison methods, predictor sets, the inclusion of perioperative predictors, validation method, size of training and testing sample, accuracy, and receiver operating characteristics (C-statistic), among other factors, were extracted and assessed.

Results:

A total of 26 studies were included in our final dataset. The overall summary C-statistic showed a mean of 0.71 across all models, indicating a reasonable level of predictiveness. A total of 15 articles (57%) were attributed to the spine, making it the most commonly explored orthopaedic field in our study. When comparing accuracy of prediction models between different fields, models predicting readmissions after hip/knee arthroplasty procedures had a higher prediction accuracy (mean C-statistic = 0.79) than spine (mean C-statistic = 0.7) and shoulder (mean C-statistic = 0.67). In addition, models that used single institution data, and those that included intraoperative and/or postoperative outcomes, had a higher mean C-statistic than those utilizing other data sources, and that include only preoperative predictors. According to the Prediction model Risk of Bias Assessment Tool, the majority of the articles in our study had a high risk of bias.

Conclusion:

AI tools perform reasonably well in predicting readmissions after orthopaedic procedures. Future work should focus on standardizing study methodologies and designs, and improving the data analysis process, in an attempt to produce more reliable and tangible results.

Level of Evidence:

Level III. See Instructions for Authors for a complete description of levels of evidence.
Proses Pengambilan Keputusan Dalam Pengembangan Mutu Madrasah (Studi Kasus MAN Insan Cendekia Paser)
Authors: Buana Idih Angga
Published: August 2024

Proses pengambilan keputusan memiliki peran yang krusial dalam pengembangan mutu madrasah. Keputusan yang tepat dan efektif diperlukan untuk mengidentifikasi, merencanakan, melaksanakan, dan mengevaluasi langkah-langkah dalam peninggkatan mutu madrasah. Penelitian ini bertujuan untuk memahami dan menganalisis proses pengambilan keputusan yang terlibat dalam pengembangan mutu madrasah. Metode penelitian yang digunakan adalah pendekatan kualitatif dengan metode studi kasus. Data dikumpulkan melalui wawancara mendalam dengan stakeholder madrasah, termasuk kepala madrasah, guru, dan anggota komite sekolah. Analisis data dilakukan dengan teknik analisis tematik untuk mengidentifikasi tema-tema yang muncul dari data yang terkumpul. Hasil penelitian menunjukkan bahwa proses pengambilan keputusan dalam pengembangan mutu madrasah Aliyah negeri Insan Cendekia Paser melibatkan beberapa tahapan yang saling terkait. Tahapan-tahapan tersebut meliputi identifikasi masalah, pengumpulan data, analisis data, pengambilan keputusan, implementasi keputusan, dan evaluasi. Setiap tahapan memiliki peran penting dalam memastikan pengambilan keputusan yang tepat dan efektif untuk meningkatkan mutu pendidikan di madrasah. Faktor-faktor yang mempengaruhi proses pengambilan keputusan antara lain keterlibatan stakeholder, kepemimpinan yang efektif, budaya organisasi yang mendukung, dan ketersediaan sumber daya. Keterlibatan aktif stakeholder dalam pengambilan keputusan memastikan keputusan yang diambil mencerminkan berbagai perspektif dan kepentingan yang relevan. Penelitian ini memberikan pemahaman yang lebih baik tentang proses pengambilan keputusan dalam pengembangan mutu madrasah. Temuan ini dapat menjadi dasar bagi kepala madrasah dan komite sekolah dalam merencanakan dan melaksanakan kebijakan yang mendukung peningkatan mutu pendidikan di madrasah. Implikasi praktis dari penelitian ini adalah meningkatkan keterlibatan stakeholder, memperkuat kepemimpinan, dan menciptakan budaya organisasi yang mendukung pengambilan keputusan efektif dalam pengembangan mutu madrasah.
Lesiones no fatales por siniestros de tránsito
Authors: Valdés-Méndez José Arturo , Martínez-Nolasco Manuel Alejandro , Gómez-Dantés Héctor , Pérez-Ferrer Carolina , Gómez-Torres Raúl , Hidalgo-Solórzano Elisa
Published: August 2024

Objetivo. Estimar la prevalencia de lesiones causadas por el tránsito (LCT) no fatales, sus características, tendencia y consecuencias en población mexicana. Material y métodos. Estudio descriptivo con información de la Encuesta Nacional de Salud y Nutrición Continua (Ensanut Continua 2021-2023), diseñada con muestreo probabilístico, polietápico y estratificado. Se estimó la prevalencia de LCT no fatales por sexo, grupo de edad (0 a 9 años, 10 a 19 años y 20 años o más), región, estrato de residencia, índice de bienestar y tipo de usuario vial, así como la proporción de uso de medidas de protección y consecuencias en salud. Resultados. La prevalencia de LCT no fatales fue 1.31% (IC95%: 1.1,1.5), equivalente a 1.6 millones de personas. Más de 90% requirió atención médica y 28.4% reportó una consecuencia permanente en salud. Fueron más frecuentes en el estrato urbano y las regiones Estado de México y Península (79.1, 15.1 y 14.1%, respectivamente), en hombres (71.1%) y en personas usuarias de motocicleta (44.6%). Conclusiones. El incremento en la prevalencia de LCT no fatales y la persistencia de conductas de riesgo para la seguridad vial subraya la urgencia de reforzar las políticas públicas y su implementación.
Metabolic adaptation drives self-organization during skin organoid morphogenesis
Authors: Lei Mingxing , Jiang Jingwei , Liu Weiwei , Wang Mengyue , Wang Dehuan , Wu Wang , Zhang Man , Zhou Siyi , Xiao Yang , Xiang Xiao , An Weiyi , Zhao Hengguang , Zhan Rixing , Yang Li , Luo Gaoxing , Chuong Cheng Ming
Published: August 2024

Self-organization in organoid morphogenesis involves the coordinated arrangement of interacting cells into higher-order structures, yet the underlying principles remain elusive. Here, we investigate how epidermal and dermal cells respond distinctively to elevated levels of hypoxia during skin organoid morphogenesis that largely resembles the skin development during embryogenesis. We unveil that autonomously generated hypoxic environment-induced metabolic adaptation drives the transition from coalesced spheroids to a planarized structure in skin organoids through the following three levels. Hif1a-mediated anaerobic metabolism positions epidermal cells to the liquid phase of the cultures under a lower oxygen level, facilitating tissue phase separation of the epidermal layer from the dermal layer. Hypoxia-driven activation of lysosomal hydrolases eliminates suprabasal keratin debris during planar epidermis formation. Fibroblasts adjacent to the basal epidermis have differential metabolic adaptation to hypoxia, which exhibit enhanced retinoid metabolism and become putative papillary dermis. Together, these hypoxia-induced metabolic adaptations contribute to reconstructing skin architecture similar to physiological development. Our findings highlight the ability of hypoxia-induced metabolic alteration to trigger varied cellular responses, leading to self-organizing coalesced spheroids-to-planar topological transformations and the restoration of tissue homeostasis.
Socioeconomic Disparities in Rhegmatogenous Retinal Detachment: Presentation and Outcomes During the COVID-19 Pandemic
Authors: Osuorah Ikesinachi , Salabati Mirataollah , Silvey Scott , Randolph Jessica
Published: August 2024

Purpose: No published papers examine COVID-19's impact on retinal detachment with long-term data or the relationship between social determinants and RRD treatment during the pandemic. We evaluate the effects of COVID-19 lockdown and socioeconomic factors on RRD presentation and outcomes.
Methods: Medical records of 106 patients underwent RRD repair from 2018 to 2021 were reviewed for race, ethnicity, age, sex, underserved status, time from symptom onset to presentation, and time from presentation to surgery. Visual acuity and recurrence rates were assessed at one-year post-surgery. Measured outcomes included macula status at presentation and postoperative visual acuity.
Results: We found no significant difference in visual outcomes based on race, ethnicity, age, sex, or underserved status. However, time from symptom onset to presentation was shorter during the lockdown (3.00 days vs. 7.27 days, p=0.001). Patients during the lockdown were more likely to present with macula-off RD (OR=6.07, 95% CI: 1.38-43.56, p=0.032) and experience higher intraocular pressures in the acute postoperative setting (22.41 mmHg ± 9.79, p=0.013), and increased time from presentation to surgery was associated with higher odds of macula-off status (OR=1.71 per additional day, 95% CI: 1.37-2.27, p<0.0001).
Conclusion: Socioeconomic and demographic factors did not significantly impact visual outcomes. Shorter presentation times during lockdown suggest effective prioritization of emergent care, but higher initial severity warrants further investigation into underlying causes. Future studies should explore these dynamics and the role of artificial intelligence in managing RDs during healthcare disruptions.
Investigating the Influence of Pore Sizes in Metal-organic Frameworks (MOFs) on Electrochemical Properties
Authors: Sarkar Subhajit , Imran Nadiah , Salleh Noordini Mohamad , Majid Siti Rohana , Zamani Mohd. Fakhrul , Halim Siti Nadiah Abdul
Published: August 2024

Three distinct MOFs; MOF-199, MOF-5, and UiO-66 - each having varying pore diameters and unique structural characteristics were synthesized and their molecular structures are confirmed using FT-IR, PXRD and FESEM techniques. Continuing the experiments, conductivity of MOFs were measured by EIS. The results indicate that UiO-66 exhibits the highest conductivity value, with a value of 2.32 × 10-5 Scm-1. Upon evaluating the effect of pore diameters with conductivity, different salt percentage were added into the MOFs to obtain the MOF-based free-standing electrolytes. Results obtained shows that different MOFs display varied conductivity values that consistently increase upon the addition of salt. However, each MOF demonstrates a unique optimized percentage of salt—was determined to be 10%, 60%, and 40%, specifically for MOF-199, MOF-5, and UiO-66, respectively and did not show significant correlations with the pore sizes of the MOFs. The highest conductivity value was observed for UiO-66 with 10% NaCl, reaching up to 7.35 × 10-5 Scm-1. 10% NaCl was substituted with 10% NaOH to evaluate the effect of different salt. Results obtained shows show minimal changes with a conductivity value of 4.61× 10-5 Scm-1. CV were conducted on the MOFs and their free-standing electrolytes showing leaf-shaped cyclic voltammogram demonstrate promising enhanced capacitive behaviour. Comparing the cyclic voltammograms of UiO-66 with 10% NaCl and 10 % NaOH separately, no significant changes observed confirming the conducting species in the free-standing electrolyte systems to be the Na+. Dielectric calculations were performed and agree well with the experimental values. BET results obtained for MOF-199 and UiO-66, along with their optimized MOF-based free-standing electrolytes, show that the surface area as well as the pore volume decreased, indicating that the pores were being occupied by Na+, thereby increasing the conductivity. In contrast to these two systems, MOF-5 displays unique properties where the surface area and pore sizes extended. Overall, results obtained through out this research supports their potential application of MOFs as hybrid electrolyte materials in the future.
Translation and validation of Barkley Deficits in Executive Functioning Scale - Children and Adolescents (BDEFS-CA) in Azerbaijani
Authors: Aghayeva Kamala
Published: August 2024

Background
Diagnosing neurodevelopmental disorders can be challenging sometimes, especially when the clinical presentation is different from what is normally seen. Evaluating executive functions can provide valuable information about children’s and adolescents’ mental states. There is no available executive function rating scale in Azerbaijani. From this perspective, there was great utility in translating and validating Barkley Deficits in Executive Functioning Scale – Children and Adolescents (BDEF-CA). For this research we decided to use the short form of BDEF-CA. The rating scale was translated into Azerbaijani by a bilingual clinical psychologist, also by a professional translator. After performing backward translation, the final version was prepared and was read and approved by two professors of the psychology department at the university. The study population included 148 parents of children 6–17 years old (78 boys and 70 girls).
Results
Findings of this research provide support for the validity and reliability of the Azerbaijani translation of BDEF-CA short version (Cronbach’s alpha and McDonald’s omega coefficient were both greater than 0.9 and Confirmatory Factor Analysis (CFA) results indicate an adequate fit).
Conclusion
The Azerbaijani translation of BDEF-CA short version could be used in assessing executive functioning deficits in children and adolescents.
Source localisation of a theory-based anxiety disorder biomarker
Authors: Shadli Shabah M. , Russell Bruce R. , Lodhia Veema , Kirk Ian J. , Glue Paul , McNaughton Neil
Published: August 2024

Anxiety disorders are a major global issue. Their diagnosis is based on symptom list, not biological causes, resulting in poor treatment outcomes. We previously developed an EEG biomarker, right frontal Goal Conflict Specific Rhythmicity (GCSR; 4-12Hz) based on our long-standing detailed neuropsychological theory of anxiety processes. GCSR is reduced by all types of selective anxiolytic and appears high cases across a range of currently diagnosed anxiety disorders. Here we assessed the areas of frontal cortex activated by GCSR. Scalp EEG was obtained with either low-density (Experiment 1, 32 channels, University of Otago, ♀:33, ♂:16) or high density (Experiment 2, 128 channels, University of Auckland, ♀:10, ♂:8) recording while healthy participants performed a Stop Signal Task designed to specifically assess GCSR as previously. sLORETA demonstrated sources consistently in the right inferior frontal gyrus and, more strongly but slightly less consistently, medial frontal gyrus. There were a few left frontal activations. As with previous work with the same Stop Signal Task, we show that a range of different neural networks can be engaged both within and between experiments to generate GCSR; with the most consistently activated being the right inferior frontal gyrus and then the medial frontal gyrus. [196 / 200]
Analysis of Chemical Exchange in Iridium N-Heterocyclic Carbene Complexes Using Heteronuclear Parahydrogen-Enhanced NMR
Authors: Assaf Charbel D. , Gui Xin , Salnikov Oleg G. , Brahms Arne , Chukanov Nikita V. , Skovpin Ivan V. , Chekmenev Eduard Y. , Herges Rainer , Duckett Simon B. , Koptyug Igor V. , Buckenmaier Kai , Körber Rainer , Plaumann Markus , Aurer Alexander , Hövener Jan-Bernd , Pravdivtsev Andrey N.
Published: August 2024

The signal amplification by reversible exchange process (SABRE) amplifies NMR signals by unlocking hidden polarization in parahydrogen through interactions with to-be-hyperpolarized substrate molecules when both are transiently bound to an Ir-based organometallic catalyst. Recent efforts have focused on optimizing the polarization transfer step from the parahydrogen-derived hydride ligands to the substrate in SABRE. However, this requires quantitative information on ligand exchange rates, which common NMR techniques struggle to provide. Here, we introduce an experimental spin order transfer sequence where readout occurs at 15N nuclei directly interacting with the catalyst. To overcome sensitivity challenges, enhanced 15N NMR signals are created, encoding discrete substrate dissociation rates. This methodology enables robust data fitting to proposed ligand exchange models, yielding substrate dissociation rate constants with higher precision than classical 1D and 2D 1H NMR approaches. This refinement provides enhanced accuracy for estimating the key activation enthalpy ΔH‡ and ΔS‡. Moreover, the higher chemical shift dispersion provided by signal-enhanced 15N NMR allows for the kinetics of substrate dissociation of both acetonitrile and metronidazole, previously inaccessible via 1H NMR due to small chemical shift differences between the resonances of free and Ir-bound molecules of these substrates.
Recréer le territoire de l’école par la cocréation de maquettes
Authors: Benimmas Aïcha , Romero Margarida
Published: August 2024

Le rapport des élèves à l’espace peut se développer par le biais de différentes activités d’apprentissage. Parmi ces activités, le projet SmartCityMaker engage les élèves dans une démarche de cocréation de leur quartier scolaire par le biais de la réalisation d’une maquette combinant les techniques analogiques et numériques. Dans le cadre de cette étude, les élèves d’une école primaire sont invités à explorer différentes facettes de leur territoire de proximité et, par la suite, à mobiliser leurs habiletés spatiales de manière pratique par la construction d’une maquette. L’étude cherche à comprendre la manière dont le projet SmartCityMaker permet d’enrichir le rapport des élèves à leur territoire scolaire, ainsi que leur pensée spatiale. Dans cette visée, nous analysons le processus d’apprentissage vécu par des élèves de 11 ans d’une école primaire en France qui participent au projet SmartCityMaker. Nous présentons la démarche d’apprentissage vécue par les élèves et les aspects pouvant permettre d’observer leur rapport à l’espace de même que la manifestation de leur pensée spatiale.
A Review of “Next level grammar for a digital age: Teaching with social media and online tools for rhetorical understanding and critical creation”
Authors: Lim Kyu Yun
Published: August 2024

Next level grammar for a digital age by Darren Crovitz, Michelle D. Devereaux, and Clarice M. Morgan has made a valuable contribution to English Language Arts (ELA) education by delineating how grammar instruction can be situated within real-life contexts using digital technologies and media, as well as emphasizing the importance of critical digital literacy in ELA education. The book provides educators with a wide range of approaches to guide students in utilizing language in digital spaces and understanding rhetorical grammar to create digital content, aiming to raise learners to become more conscious digital readers and writers and to grow up to be engaged citizens. With its concrete and practical lesson ideas, the book helps language teachers to prepare for teaching complex and challenging topics that emerge in digital realms and to guide students to incrementally develop their literacy skills. Individuals in language education will find valuable insights for engaging discussions on how language teaching can be updated to meet requirements of an increasingly digital media landscape.