bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sentidos do trabalho com arte e cultura:
Authors: Grillo André 
Published: February 2024

Este artigo apresenta um resumo da minha tese de doutorado, intitulada “Contracultura, Trabalho Imaterial e Produção: tendências possíveis da produção cultural no Brasil contemporâneo”, defendida em agosto de 2017, na UFJF. Nela, desenvolvo uma sociologia do trabalho com arte e cultura para analisar o produtor cultural no Brasil recente, com foco no nicho da música “independente”, buscando compreender alguns dos sentidos possíveis que a atividade possui para quem a executa. Para tanto, remeto ao estudo da Contracultura dos anos 60 para observar a formação de um novo sentido para o trabalho, manifesto por muitos dos produtores pesquisados, ao menos em sua forma incorporada ao “novo capitalismo”, comparando-o com outros sentidos possíveis observados. Apresento, assim, sucintamente, as principais contribuições teóricas, históricas e empíricas de cada uma das três partes da tese, e alguns de seus principais resultados, conclusões, e apontamentos para pesquisas futuras.
Palavras-chave: Sociologia do trabalho com arte e cultura; Contracultura; Trabalho Imaterial; Produção cultural e música independente
Um socialismo levinasiano: ou da assinatura ético-socialista da experiência do cativeiro de Emmanuel Levinas
Authors: Rodrigues Tiago dos Santos 
Published: February 2024

Este artigo realiza uma incursão sobre os cadernos que Emmanuel Levinas escreveu durante o período que esteve em cativeiro em poder dos hitleristas, os chamados cadernos do cativeiro. Nossa análise terá por base, além destes cadernos, algumas observações que a filósofa portuguesa Fernanda Bernardo teceu sobre esse material levinasiano. Nossa hipótese é de que, conforme expressão de F. Bernardo, a assinatura ético-metafísica que Levinas gestou no seu período de cativeiro pode ser melhor entendida enquanto uma assinatura ético-socialista, ou seja, sustentaremos que Levinas concebeu sua filosofia, sua ética, desde uma perspectiva declarada e consequentemente socialista.

Palavras-chave: Socialismo, Liberalismo, Necessidade, Consumo, Propriedade.
Por um mundo menos tolerante e mais hospitaleiro
Authors: Gutierrez Luis Alberto Méndez 
Published: February 2024

Na atualidade estamos enfrentando uma forte onda de intolerância e tolerância, potencializando e valorizando a Tolerância como sendo um modelo a seguir, e seria a solução para as fortes condutas violentas, discriminatórias e criminosas que estamos sendo vítimas nas relações interpessoais e nas relações entre culturas e países. Tolerar o desigual, o assimétrico é uma luta desigual, do mais forte contra aquele que pela sua realidade social, tem sido enfraquecido. Como formar uma consciência e uma cultura, não do tolerar-aguentar a partir de minhas condições impostas; mas uma cultura de hospitalidade, de acolhida, de abertura ao distante, ao assimétrico e estranho. A hospitalidade incondicional, ou seja, não coloco nenhuma condição, a única condição para acolher ao estrangeiro que chega do além do horizonte, é não ter condições. Desse modo não acolho uma categoria estrangeiro, mas uma pessoa que tem sua individualidade e sua unicidade. Para uma acolhida com hospitalidade é necessário criar um deslocamento na minha interioridade, me acomodar diferente, o outro que chega sempre provoca um movimento interior e exterior no meu eu; quando não acolho ao assimétrico, colocando condições na sua chegada, nada de novo acontece no eu. Acolher com hospitalidade é a possibilidade de nos experimentar diferente e de inaugurar algo novo em nós, na construção de sermos cada vez melhores, mais humanos, solidários e hospitaleiros.

Palavras-chave: Tolerância, Intolerância, Hospitalidade condicional, Hospitalidade incondicional, Estrangeiro.
Regras e valores nas teorias historicistas da racionalidade científica
Authors: Dal Magro Tamires 
Published: February 2024

As teorias historicistas da racionalidade científica são produtos relativamente recentes da filosofia da ciência. Adequando-se aos dados extraídos da história da ciência, elas diferem de abordagens mais abstratas ou normativas da atividade científica que predominaram na primeira metade do século vinte. As teorias historicistas, contudo, são desafiadas pela dificuldade de conciliar a adequação empírica à história da ciência com a atribuição de racionalidade aos cientistas eles mesmos, especialmente quando escolhem entre hipóteses científicas rivais. Este artigo discute três influentes teorias historicistas da racionalidade científica, devidas a Kuhn, Lakatos e Laudan, analisando como cada uma trata da racionalidade dessas escolhas, e argumenta em favor de análises de tipo kuhniana, que exploram o papel dos valores nas escolhas científicas e não as concebem como guiadas exclusivamente por regras de aplicação unívoca ou universal.
Palavras-chave: Kuhn; valores; regras; teorias historicistas; racionalidade científica.
Uma abordagem histórica do uso do ábaco de Gerbert para o ensino de multiplicação tendo como foco o Traité de Gerbert (1843)
Authors: Albuquerque Suziê de , Pereira Ana Carolina Costa 
Published: February 2024

O presente artigo trata de um estudo que articula história e ensino de matemática, com o objetivo de identificar elementos do uso do ábaco de Gerbert nos casos da multiplicação dos números inteiros que podem colaborar na elaboração de atividades para a educação básica. Para tanto, realizou-se uma pesquisa documental a partir do texto histórico Traité de Gerbert, na versão de 1843. Diante dos achados históricos, evidenciou-se que os procedimentos de cálculos medievais contidos nessa fonte poderiam favorecer a compreensão das características do sistema de numeração decimal, bem como o desenvolvimento de diferentes algoritmos para a operação da multiplicação dos números, sendo estas habilidades indicadas nos documentos curriculares brasileiros.
الخجل وعلاقته بالاكتئاب لدى عينة من طلبة الجامعة ذوي البدانة المتوسطة
Authors: Al keraidees Reem Salem Ali 
Published: February 2024

الأهداف: تهدف الدراسة إلى تعرُّف العلاقة بين الخجل والاكتئاب لدى عينة من طلبة الجامعة من ذوي البدانة المتوسطة، وتعرُّف الفروق بين الطلبة عينة الدراسة على مقياس الخجل ومقياس الاكتئاب. كما تهدف إلى التحري عن إمكانية التنبؤ بمتغير الاكتئاب من خلال متغير الخجل لدى طلاب الجامعة من ذوي البدانة المتوسطة.
المنهجية: استخدمت الدراسة المنهج الوصفي الارتباطي، وتكونت العينة من (220) من طلبة جامعة الإمام مقسمة إلى (100) طالبٍ و(120) طالبة تكونت العينة من جميع الطلاب أصحاب مؤشر كتلة الجسم المتوسطة في جامعة الإمام بالرياض . استخدمت مقياس الخجل ومقياس الاكتئاب من إعداد (الباحثة) وجرى التأكد من المقياسين من حيث خصائصهم السيكومترية.
النتائج: أشارت نتائج الدراسة إلى وجود علاقة دالة إحصائيًا بين كل من متغيري الخجل والاكتئاب لدى الطلاب من ذوي البدانة المتوسطة. كما تبين وجود فروق دالة إحصائيًا بين الطلاب على مقياسي الخجل والاكتئاب تبعًا للنوع (ذكور- إناث) في اتجاه الإناث. كما تبين وجود علاقة ارتباطية (طردية موجبة) بين أفراد عينة البحث في أبعاد مقياس الخجل، ودرجاتهم في مقياس الاكتئاب كل على حدة. كما أثبتت الدراسة إمكانية التنبؤ بالاكتئاب من خلال متغير الخجل.
الخلاصة: خلصت النتائج إلى ضرورة توعية الطلاب بمخاطر السمنة والعمل على التخلص من الخجل والاكتئاب. توصلت الدراسة الى عقد برامج توعوية بالجامعات لتعرُّف مخاطر السمنة. و ضرورة اهتمام مراكز الإرشاد النفسي بالجامعات بعقد دورات لخفض سمة الخجل لدى الطلاب و ضرورة عقد دورات لخفض إضطراب الاكتئاب لدى الطلاب و ضرورة تشجيع طلاب الجامعات على ممارسة الرياضة.
أثر استخدام السبورة التفاعلية كأداة تعليمية في تحصيل طلبة الصف الحادي عشر في مادة الفيزياء واتجاهاتهم نحوها
Authors: Alqawasmi Abdellateef , Alsalhi Najeh Rajeh , Alarabi Khaleel , Alabidi Suzan Alabidi 
Published: February 2024

الأهداف: هدفت الدراسة إلى الحالية تعرُّف أثر استخدام السبورة التفاعلية كأداة تعليمية في تحصيل طلبة الصف الحادي عشر في مادة الفيزياء واتجاهاتهم نحوها.
المنهجية: استخدمت الدراسة المنهج شبه التجريبي والكمّي، حيث جرى استخدام اختبار تحصيلي واستبانة الاتجاهات نحو استخدام السبورة التفاعلية مكونة من (23) فقرة مرتبطة بهدف الدراسة بعد التأكد من صدقها وثباتها، وموزعة على ثلاثة مجالات (اندماج الطلبة ودافعيتهم، وعمليتَي التعليم والتعلم، وقيود استخدام السبورة التفاعلية). تكوّنت عينة الدراسة من (63) طالبًا من الصف الحادي عشر موزعين إلى مجموعة ضابطة (31) ومجموعة تجريبية (32)، جرى اختيارهم بطريقة قصدية خلال الفصل الدراسي الأول للعام الدراسي 2021-2022. جرى تحليل بيانات الدراسة باستخدام برنامج الحزمة الإحصائية للعلوم الاجتماعية (SPSS).
النتائج: أظهرت نتائج الدراسة تفوق طلبة المجموعة التجريبية في التحصيل والذين جرى تدريسهم من خلال السبورة الذكية على طلبة المجموعة الضابطة التي دُرست من خلال السبورة التقليدية. كما أظهرت النتائج وجود اتجاهات إيجابية لدى الطلبة نحو السبورة التفاعلية.
الخلاصة: إن استخدام السبورة التفاعلية كأداة تعليمية له تأثير إيجابي في زيادة تحصيل الطلاب في الفيزياء، بالإضافة إلى قبولهم لاستخدامها. ونتيجة لذلك، أوصت الدراسة بإجراء مزيد من الدراسات حول إستخدام السبورة التفاعلية عبر المراحل المدرسية المختلفة.
Impact of the COVID-19 Pandemic on the Incidence of Complicated Appendicitis in a Tertiary Medical Center, Amman, Jordan. A retrospective cohort.
Authors: Amarin Marzouq , Al-Qawasmeh Abdallah , Ghazzal Hamza , AbuAnzeh Rand , Kitaneh Razi , Toubasi Ahmad , Halaseh Shahed 
Published: February 2024

Abstract
Objective: To assess the incidence of complicated appendicitis during the COVID-19 pandemic in Jordan University Hospital.
Materials and Methods: in this cohort study, we retrospectively investigated data on acute appendicitis cases, two groups were established, the first group was the pandemic group, which includes patients who presented to the hospital during the period of acute restrictions and shutdowns extending from the 17th of March to the 6th of June 2020, and the pre-pandemic group which represents the same period in the previous year. These two groups were compared in terms of clinical characteristics and the prevalence of complicated appendicitis.
Results: A total of 45 patients were included in the study, 24 in the pandemic group and 21 in the pre-pandemic group. Gender distribution was not significant between the two periods (P-value>0.05). Rates of occurrence of overall complications, preoperative complications, and intraoperative complications were similar indicating no significant difference between the two groups (P-value=0.526, 0.835, and 0.547, respectively). The duration between symptoms and admission and ALVARADO score were not significantly different between the two study groups. Also, the duration of in-hospital stay was numerically but not significantly lower in the 2019 (March-June) group compared to 2020 (March-June).
Conclusion: In our study, there was no significant difference in the incidence of complicated appendicitis between pandemic and pre-pandemic groups.
Model-based Remaining-Useful-Life prognostics for aircraft Cooling Units
Authors: De Pater Ingeborg , Mitici Mihaela 
Published: February 2024

Prognostics for the Remaining-Useful-Life (RUL) of aircraft components are crucial to support efficient aircraft maintenance planning and, in particular, to limit unscheduled maintenance due to unexpected component failures. As such, predictive methods for the RUL of aircraft components are increasingly a priority for aircraft Maintenance, Repair and Operations (MROs).
In this paper we develop model-based RUL prognostics for aircraft Cooling Units using operational data recorded during the flights of several wide-body aircraft. A Cooling Unit is a vapor cycle refrigeration unit consisting of a condenser, a flash tank, an evaporator and a compressor. After some time of usage, the filter of these Cooling Units is clogged with burned oil, moist and sludge from the compressor. This accelerates the wear of the components. Long time utilization of these components in these conditions leads to a failure.
To model the degradation of the Cooling Units, we use an exponential functional form for the degradation. Together with sequential Monte Carlo methods, we estimate the probability distribution of the RUL of these components. The exponential functional form of the degradation is based on the fact that the cumulative damage in the components has an effect on the degradation rate. It has been shown that an exponential model is a good approximation for non-linear degradation processes like corrosion, bearing degradation, or deterioration of LED lighting. In fact, the Cooling Units can also be seen as subject to corrosion and accelerated wear.
We evaluate our RUL prognostics for various prediction horizons, i.e., at 30, 20 and 10 flight cycles before failure. The results show that our proposed methodology is able to estimate the RUL of the Cooling Units well, and that the uncertainty associated with the prognostics decreases as the prediction horizon decreases, i.e., as the components approach failure. The choice of the prediction horizon is relevant from the point of view of MROs, which re-evaluate periodically their aircraft maintenance schedules. In practice, regular maintenance checks are scheduled every two weeks. Having accurate RUL prognostics over such time horizons enables the maintenance planners to better plan tasks, limiting unscheduled failures. In addition, the fact that we estimate the uncertainty associated with the RUL prognostics enables the maintenance planners to prioritize the maintenance of the components.
Overall, our results provide support for maintenance planners to make informed and efficient maintenance schedules.
Requirements for Designing A Robotic System for Aircraft Wing Fuel Tank Inspection
Authors: Dhoot Manpreet Haur , Fan Ip- Shing , Avdelidis Nico 
Published: February 2024

An aircraft wing is built up of complex subassemblies including rib and spar structures, fuel transfer holes, piping and electronical wiring bundles. The wing structure is also used as storage space for the jet fuel in the ‘wet wing’ configuration. Vigorous inspection procedures are in place to detect defects such as fuel leaks, microbiological initiated corrosion and impact damages. Inspection inside the wing is significantly challenging due to the physical complexity, restricted accessibility and presence of fuel vapour. Current literature has highlighted opportunities for a novel aircraft fuel tank inspection robotic system. This paper starts with an overview of existing maintenance practices with the use of Remote Visual Inspection (RVI) equipment for fuel tank inspection, highlighting the implications and challenges of these methods.
Their limitations inspire the development of novel robotics to achieve detailed internal inspection of an aircraft wing fuel tank. This research investigates the challenging case of fighter aircraft wing tank inspection. The wing shape geometry is highly irregular with very few fixed cartesian reference points. The internal structure is congested with many systems and difficult to manoeuvre within. This paper summarises the key requirements for inspection robotics for this particular case study.
The requirements are presented in three categories; Robotic locomotion and navigation imposed by the complex and confined space inside the wing structure, secondly the materials, mechanisms and power sources imposed by the hazardous and potentially explosive environment inside the wing tank and lastly, the inspection sensors and assessment algorithms imposed by fuel tank defect and degradation features. The authors focus on the robotic system flexibility and mobility challenges to overcome the numerous obstacles within the confined space whilst effectively integrating a visual inspection technique to capture defined defects. This paper builds on the limitations of current inspection methods to elaborate the requirements for a robotic system to carry out inspection of fighter aircraft wing fuel tank, typical of challenging harsh environment.
PENGARUH VARIASI UKURAN PARTIKEL BATANG JAGUNG TERHADAP KONDUKTIVITAS TERMAL DAN PEREDAMAN SUARA KOMPOSIT PARTIKEL BATANG JAGUNG
Authors: Gunawan Pasaribu Hafiz , Hidayat Amri , Dzil Ikram Fadhli , Sarwana Wirya 
Published: February 2024

Dewasa ini semakin berkembangnya teknologi, tidak menutup kemungkinan juga berkembangnya masalah-masalah baru khusus nya di bidang lingkungan hidup skala global. Beberapanya adalah pemanasan global, kebisingan atau polusi suara kemudian ada masaalah penyerapaan air. Pemanasan global adalah permasalahan yang kian dialami dan dirasakan oleh seluruh masyarkat di dunia dengan ditandai oleh kondisi peningkatan suhu yang semakin panas, kondisi cuaca yang tak menentu juga merupakan tanda-tanda terjadi pemanasan global. Berkaca dari beberapa permasalahan diatas, maka perlunya sebuah solusi untuk mengatasinya. Pembuatan komposit berbahan alami adalah solusi yang bijak. Komposit adalah suatu material yang dihasilkan dari dua bahan berbeda atau lebih yang memiliki sifat berbeda pula sehingga menghasilkan material baru yang lebih baik. Salah satu bahan alami yang bisa digunakan adalah batang jagung. Komposisi partikel tongkol jagung yang digunakan adalah 35, 18 dan 12 mesh. Hasil penelitian menunjukkan bahwa fraksi A (35 mesh) memiliki konduktivitas termal rata-rata 0,1976 W/mK, fraksi B (18 mesh) 0,1911 W/mK, dan fraksi C (12 mesh) 1893 W/mK. Pada pengujian serapan bunyi, koefisien serapan bunyi tertinggi terdapat pada fraksi A (35 mesh) yaitu 0,352 pada frekuensi 1400 Hz, sedangkan koefisien serap bunyi terendah terdapat pada fraksi C (12 mesh) yaitu 0,100. frekuensi 800 Hz. Pada uji serap air, fraksi A (35 mesh) memiliki rata-rata 8,56%, fraksi B (18 mesh) 10,67% dan fraksi C (12 mesh) rata-rata 10,97%.
Analisis Buckling pada Rangka Mesin Pemberi Pakan Ikan otomatis
Authors: Yahdil  , Dzil Ikram Fadhli , Sarwana Wirya 
Published: February 2024

Ketahanan pangan merupakan permasalahan yang akan di hadapi dunia di masa yang akan datang solusi untuk menjawab permasalahan ketahanan pangan di dunia yaitu salah satunya pada sektor perikanan. Negara Indonesia menjadi sebuah solusi karena menjadi negara dengan penghasil ikan terbanyak ke dua di dunia sesuai yang di sampaikan oleh FAO dalam laporan The State of World Fisheries and Aquaculture 2022. Namun, dalam proses peningkatan hasil ikan perlu dilakukannya pembudidayaan agar menjaga kestabilan hasil perikanan di Indonesia. Anda memerlukan pengumpan ikan otomatis untuk mempermudah pengoperasian. Penelitian harus dilakukan pada kerangka penggunaan teknologi ini, analisis tekuk. Tegangan tekan pada suatu struktur dapat menyebabkan fenomena keruntuhan yang disebut buckling, yang mengakibatkan pembengkokan lateral struktur menjadi bentuk kesetimbangan yang berbeda. Beban kritis, deformasi, dan tegangan ekuivalen semuanya dihitung dalam pendekatan ini. Jumlah beban yang diberikan pada rangka sebesar (100 Kg/981 N). sehingga hasil beban kritis yang didapatkan sebesar (13.879,923 N) pada jenis rangka 1 dengan luas penampang (40 mm x 40 mm x 0,5 mm) dan pada jenis rangka 2 dengan luas penampang (40 mm x 25 mm x 0,5 mm) sebesar (12.621,791 N). Adapun deformasi maksimum sebesar (0,25013 mm) terhadap rangka 1 dan nilai minimum sebesar (0 mm). Nilai deformasi maksimum pada rangka 2 sebesar (0,53323 mm) dan nilai minimum sebesar (0 mm). sedangkan equivalent stress maksimum pada rangka 1 sebesar (180,38 Mpa) dan nilai minimum sebesar (0,0046383 Mpa). Nilai equivalent stress maksimum pada rangka 2 sebesar (99,735 Mpa) dan nilai minimum sebesar (0,0016464 Mpa).
Analisis Kekuatan Rangka Mesin Chipper Kayu Menggunakan Metode Elemen Hingga
Authors: Raharjo Isman , Hidayat Amri , Dzil Ikram Fadhli , Aldrin Aldrin 
Published: February 2024

Rangka adalah suatu komponen yang penting dalam sebuah mesin untuk menopang beban mesin sehingga rangka harus dijamin aman dan kuat. Mesin chipper kayu yang mampu mengubah kayu menjadi serpihan kecil untuk produksi pelet kayu sebagai bahan bakar alternatif. Tujuannya untuk mengetahui tegangan maksimum,deformasi maksimum dan faktor keamanan. Proses analisis meliputi persiapan alat, desain rangka dan analisis pada rangka dengan menggunakan software inventor dan Ansys. Setelah proses analisis dilakukan maka didapatkan hasil dengan beban 8 kg pada kerangka atas dan 8,7 kg pada dudukan motor AC dengan nilai tegangan ekuivalen sebesar 131,7 Mpa, nilai deformasi maksimum sebesar 0,41119 mm dan faktor keamanannya 1,89.
Kata Kunci: Analisis tegangan, deformasi, faktor keamanan, rangka, ansys.
A Suspicious Cup Disc with High Intraocular Pressure (IOP) and Normal Perimetry: A Rare Self Case Report
Authors: Abdiwijoyo Mario , Nanda Lessi Hafni Eka Putri  
Published: February 2024

Background: Intraocular pressure (IOP) assessment involves evaluating the force exerted by aqueous humor on the internal surface of the anterior eye. Elevated IOP poses a substantial risk for glaucomatous optic neuropathy and is a key modifiable clinical risk factor. This study aims to explore cases of ocular hypertension coupled with optic nerve cupping, suspected to be glaucoma, providing comprehensive details of examination results, diagnosis, and subsequent management.
Case presentation: A 23-year-old Asian male underwent an ocular examination, revealing average IOP levels measured using non-contact tonometry. Despite no complaints, consecutive measurements noted 28 mmHg for the right eye and 26 mmHg for the left eye. Initial assessments by a glaucoma specialist indicated open-angle anterior chambers. Optical coherence tomography revealed cup disc ratios of 0.7 to 0.8 for both eyes. Medication (Timol) was prescribed, adjusting with oral citicoline and brinzolamide. The diagnosis evolved to juvenile open-angle glaucoma (JOAG). Visual field testing showed normal results. Discontinuation of treatment led to reclassifying the diagnosis as ocular hypertension and scheduling follow-up OCT examinations for five years.
Conclusion: The patient exhibited corneal thickness ≥610 μm, CDR ≥0.7 μm, IOP >25 mmHg, and maintained good visual field conditions. Additional research is essential to understand the correlation between corneal thickness and other eye conditions. Recognizing potential overdiagnosis due to high IOP and large CDR emphasizes the need for meticulous clinical assessment and advanced diagnostic examinations to distinguish physiological and pathological conditions.
The Complexities of Colorectal Cancer: A Case Report
Authors: Intan Fredika Bahari  , Arifin Mohamad 
Published: February 2024

Background: Colorectal cancer (CRC) is a malignancy that originates from the colon tissue (ascending, transverse, descending, sigmoid colon) and rectal tissue. Colorectal cancer is the fourth most common cancer in the world, and the second leading cause of cancer death. In Indonesia (2020), colorectal cancer was ranked sixth of the all malignancy diagnoses with a total of 17,368 new cases (4,4%).
Case presentation: a case of colon cancer (mucinous adenocarcinoma) in a 70 year old woman. Diagnosis was based on anamnesis of the presence onf intermitten abdominal pain, a mass in the right iliac region of the abdomen, and defecation accompanied by blood. On physical examination, there was tenderness and a mass in the right iliac region, and a positive Carnett’s sign. computer tomography (CT) of the urinary tract without contrast was performed and revealed a mass was found in the right abdomen, suspicious for the ascending colon and hepatic flexure of the colon, a cyst with a diameter of ± 3cm in the right kidney.
Conclusion: Anatomical patology (microscopic) results showed mucinous adenocarcinoma. The treatment for this patient was exploratory laparotomy, right hemicolectomy, and end to end anastomosis.