bluuebunny/crossref_metadata_2025 huggingface dataset:
Interactive Multimedia Using Canva Application in Basic Electronics Subject for Grade X at SMK Negeri 1 Batipuh: A Development Study
Authors: Mailando Sandi Azima , Dewi Ika Parma , Hanesman  , Samala Agariadne Dwinggo
Published: December 2023

This research is motivated by the low student learning outcomes due to the learning process still relying on printed books, the absence of interactive multimedia learning media, and the use of traditional methods. The main objective of this study is to evaluate the validity and practicality of interactive multimedia using the Canva application in the Basic Electronics subject for the 10th grade at SMK Negeri 1 Batipuh. To carry out this development, the 4D research model is employed, including the Define, Design, Development, and Disseminate steps. The results of material expert validation show an average score of 0.883, categorizing it as "Valid." The average score from the media expert verification is 0.914, also falling into the "valid" category. The practicality test of the Basic Electronics multimedia learning demonstrates that it is highly practical for use in the learning process, with an average percentage of 91%, falling into the "Very Practical" category.
In-vitro Diagnosis of Approximal Caries in Teeth Periapical Radiography with Different Exposure Parameters
Authors: Altun Oğuzhan , Çelik Özen Duygu , Dedeoğlu Numan , Duman Şuayip Burak , Eşer Gözde , Topaloğlu Edanur , Özemre Begüm , Demirezer Kardelen
Published: December 2023

Objective: The aim of this study was to evaluate periapical radiographs of enamel caries, dentin caries, and deep caries with exposed pulp and intact teeth obtained in vitro using photo-stimulated phosphor plates (PSP) under different exposure parameters.
Methods: 3 non-carious extracted molars were selected. The obtained molars were embedded in the wax created from pink wax by ensuring approximal contact and a base was created. 14 different imaging protocols were used with 60 kVp, 4 mA 0.02-0.1 second and 70 kVp 7 mA, 0.25-1.25 second exposure parameters. Intact teeth were imaged with these various imaging protocols. Artificial cavities were then created for enamel caries, dentin caries and deep caries with exposed pulp and imaged according to the same protocols. The images were evaluated by 3 clinicians who were blind to the exposure protocol and caries status. Inter-observer agreement with actual situations was examined with Kappa statistics.
Results: In the low-dose group, the kappa values of observer 1, observer 2, and observer 3 were 0.905, 0.952, 0.952, respectively. The kappa values of observer 1, observer 2, and observer 3 in the ultralow-dose group were 0.833, 1, 1, and the kappa values of observer 1, observer 2, and observer 3 in the high-dose group were 1, 1, 0.833, respectively. The results obtained in all groups showed a statistically significant-excellent agreement (p<0.001).
Conclusion: Approximal caries can be diagnosed with intraoral radiography obtained with low radiation doses with PSP in dentistry. Thus, patients could be exposed to less ionizing radiation.
Morphological and Topographical Features of the Radial Recurrent Artery and Its Possible Clinical Significance
Authors: Sağlam Latif , Gayretli Özcan , Coşkun Osman , Gürses İlke Ali , Çandır Buse Naz , Kale Ayşin , Öztürk Adnan
Published: December 2023

Objective: The anatomy of the radial recurrent artery (RRA) is very important for interventional procedures. The aim of this study was to investigate the morphological and topographic anatomy of the RRA.
Methods: The study was conducted on 20 human cadavers (14 male and 6 female, 40 upper limbs). The RRA was classified into 4 groups as follows according to the observed origin: RRA originated from the radial artery (RA) (Type A), the root of the RA (Type B), the brachial artery (BA) (Type C), and the ulnar artery (UA). The relative positioning of the RRA in relation to the biceps brachii muscle tendon (TBB), in terms of the antero-posterior direction was determined. The vertical distance of the origin point of the RRA to the intercondylar line and the diameters of this artery were determined. Morphometric evaluation was performed with a digital caliper. The obtained data were analyzed using SPSS version 21.00 software.
Results: The artery most commonly originated from the RA (Type A 47.5%, 19 extremities). This was followed by RA root (Type B 32.5%, 13 extremities), BA (Type C 17.5%, 7 extremities), and UA (Type D 2.5%, 1 extremity). The RRAs coursed anteriorly to the TBB in 38 extremities (95%) and passed behind the tendon in 2 extremities (5%). The vertical distance of the origin point of the RRA to the intercondylar line was meanly 32.20 ±6.86 mm. The diameter of the artery at its origin point was meanly 2.57 ± 0.58 mm and just after its first branch was meanly 2.05 ± 0.48 mm. Our study documents a rare morphological variation of the RRA originating from the UA (Type D).
Conclusion: While many of our findings align with previous studies, this research presents novel anatomical findings and elucidates the superficial course and topographical positioning of the RRA to estimate its origin point.
Selection of models and parameter estimation for monitoring the COVID-19 epidemic in Brazil via Bayesian inference
Authors: Inez Lucas Martins , Dalla Carlos Eduardo Rambalducci , Silva Wellington Betencurte da , Dutra Julio Cesar Sampaio , Costa José Mir Justino da
Published: December 2023

In 2019, a new strain of coronavirus led to an outbreak of disease cases named COVID-19, evolving rapidly into a pandemic. In Brazil, delayed decision making and lack of knowledge have resulted in an alarming increase in daily transmission and deaths. In this context, researchers used mathematical models to assist in determining the parameters that act in the spread of diseases, revealing containment measures. However, numerous mathematical models exist in the literature, each with specific parameters to be specified, leading to an important question about which model best represents the pandemic behavior. In this regard, this work aims to apply the Approximate Bayesian Computation method to select the best model and simultaneously estimate the parameters to resolve the abovementioned issue. The models adopted were susceptible-infected-recovered (SIR), susceptible-exposed-infected-recovered (SEIR), susceptible-infected-recovered-susceptible (SIRS), and susceptible-exposed-infected-recovered-susceptible (SEIRS). Approximate Bayesian Computation Monte Carlo Sequencing (ABC-SMC) was used to select among four competing models to represent the number of infected individuals and to estimate the model parameters based on three periods of Brazil COVID-19 data. A forecasting test was performed to test the ABC-SMC algorithm and the selected models for two months. The result was compared with the actual number of infected that were reported. Among the teste models, it was found that the ABC-SMC algorithm had a promising performance, since the data were noisy and the models could not predict all parameters.
Verification of structural reliability of a highway bridge in the state of Rio Grande do Sul
Authors: Avila Vinicius Heidtmann , Real Mauro Vasconcellos
Published: December 2023

This study deals with the evaluation of the reliability index of prestressed girders members of road bridges in relation to the ultimate limit state (ULS) of bending failure. In a wide bibliographic review of scientific works that deal with structural reliability, prestressed structural elements and road bridges, it is observed that few of these deals specifically with the reliability of girders considering the codes NBR 7188 of 2013 and NBR 7187 of 2021. A mechanical model was developed for the calculation of the beam resistant moment and the Monte Carlo Method was used to obtain a data set that represents the statistics of the structure in the ULS. To obtain the reliability index B, the first order reliability method (FORM) was used. The values obtained by the analytical method are validated using the Monte Carlo simulation method. For all evaluated cases, the value of the reliability index was higher than 4.0, which is higher than the minimum required value of 3.5, showing that the national normative recommendations for the design of beam members guarantee a very conservative level of safety.
Immunological memory improves the long-term cross-immunity: An influenza case study
Authors: De Cezaro Adriano , Gomes Ana Carla Ferreira Nicola , Marques Joice Chaves
Published: December 2023

In this contribution, we investigate the effects of the immunological memory in the population against the strain mutation of a disease, assuming that this memory is enhanced by the dynamics that follow a multi-order fractional SIRC model. We use weekly infection data on Influenza H1N1 in the state of Rio Grande do Sul, reported in the year of 2010, as the guide for our simulations and parameter choices. The simulated results suggest that the best scenarios, regarding the Influenza H1N1 data fit and that have a long-term prevention of reinfection for mutated strains of a circulating disease is the one in which the compartment of the population has a distinct level of immunological memory. Hence, any immunization strategy should be applied as early as possible, allowing the individual to acquire immunological memory before the strain can undergo mutations.
Parameter estimation in the pollutant dispersion problem with Physics-Informed Neural Networks
Authors: Silva Roberto Mamud Guedes da , Migon Helio dos Santos , Silva Neto Antônio José da
Published: December 2023

In this work, the inverse problem of parameter estimation in the advection-dispersion-reaction equation, modelling the pollutant dispersion in a river, is studied with a Neural Network approach. In the direct problem, the dispersion, velocity and reaction parameters are known and then the initial and boundary value problem is solved by classical numerical methods, where it is used as input dataset for the inverse problem and formulation. In the inverse problem, we know the dispersion and the velocity parameters and also the information about the pollutant concentration from the synthetic experimental data, and then the aim is to estimate the reaction parameter in the advection-dispersion-reaction equation. This inverse problem is solved by an usual Artificial Neural Network (ANN) and by a Physics-Informed Neural Network (PINN), which is a special type of neural networks that includes in its formulation the physical laws that describe the phenomena involved. Numerical experiments with both the ANN and PINN are presented, demonstrating the feasibility of the approach considered.
Analysis of EAHE through a coupled mathematical model solved by Laplace transform and Gaver-Stehfest algorithm
Authors: Martins Felipe Augusto Silva , Weymar Guilherme Jahnecke , Furtado Igor da Cunha , Tumelero Fernanda , Brum Ruth da Silva , Quadros Régis Sperotto de , Buske Daniela
Published: December 2023

The earth-air heat exchangers (EAHEs) are devices that are shown to be a great alternative to assist in the thermal comfort of buildings, mainly due to their low energy cost. The proposed model considers the heat exchange between the soil, the duct and the air, generating coupled equations. This work seeks to employ and verify EAHE applications in two scenarios, first in a literature experiment and then in a EAHE application in Pelotas. In both scenarios, it is considered that the soil and air temperature functions are time dependent. The solution is obtained by applying the Laplace transform and for the inversion of the integral transform the numerical method known as the Gaver-Stehfest Algorithm was used. The obtained results show that the proposed model follows the behavior of the experimental data. In addition to the experimental data, the proposed model was compared with the analytical model by Nóbrega, where the results had a small variation (of 0.20 ºC between them) by considering the heat transfer process in the duct material, modeling a more close to the real situation.
Forecast modelling of vegetable oil spill events at Paranaguá Port, Brazil
Authors: Schmidt Luiz Gustavo , Kirinus Eduardo de Paula
Published: December 2023

The Port of Paranaguá serves as Brazil's primary outlet for soy oil exports, accounting for nearly 70\% of all shipments in 2021. While less common than mineral oil spills, vegetable oil spills can have similarly devastating environmental effects. This risk underscores the need for effective planning and management of activities involving vegetable oil handling in the region. To address this need, this study developed results based on a forecasting setup focused on describing the behaviour of soy oil spills in the estuarine complex of Paranaguá. The system uses the open TELEMAC-MASCARET three-dimensional numerical modelling system to solve oil movement equations, coupling the hydrodynamic module (Telemac-3d) with the oil module (ECOS). The system is automated through computational routines written in Python and the bash command language, enabling users to initiate simulations and generate dispersion maps to track soybean oil in hypothetical spill scenarios. The processing results were satisfactory, demonstrating the potential for this tool to contribute to minimising the impacts of soybean oil spills in the Bay of Paranaguá. This system can support better decision-making in response efforts, reduce environmental damage, and enhance the protection of local ecosystems.
Computational model verification and numerical analysis of plate buckling due to combined loading
Authors: Baumgardt Guilherme Ribeiro , Real Mauro de Vasconcellos , Teixeira Paulo Roberto de Freitas , Santos Elizaldo Domingues dos , Silveira Thiago da , Isoldi Liércio André
Published: December 2023

Thin plates are structures widely used in different industries, due to their mechanical properties. They are often subjected to combined loading, which can cause an undesired phenomenon called buckling. In this sense, the present work analyzes the elasto-plastic buckling behavior of thin steel plates that are simply supported and subjected to in-plane uniaxial or biaxial compression combined with lateral pressure. To obtain the ultimate stress of the plates, a computational model was developed using the finite element method. Initially, the computational model was verified through previous numerical results from the literature. Then, a case study was carried out considering a rectangular plate geometry with an aspect ratio of b/a = 0.5 (where a and b are the length and width of the plate, respectively), under biaxial compression and varying the lateral loading from 0 to 0.152 MPa, aiming to analyze its elasto-plastic buckling behavior. The results indicated that the computational model was adequately verified. From the case study, it was inferred that the load step plays an important role in the numerical prediction accuracy of the elasto-plastic buckling mechanical behavior of plates In addition, the application of initial imperfection for small lateral pressures has little influence on ultimate stress, while for larger lateral pressures it does not generate influence.
STUDI PERBANDINGAN: KONSEP ESKATOLOGI MENURUT ISLAM DAN KATOLIK
Authors: Andre Albertus , Surbakti Egia Andika
Published: December 2023

Hari terakhir adalah bagian dari studi eskatologi karena diyakini akan terjadi di masa depan atau di akhir zaman. Hari terakhir dunia Eskatologi adalah ilmu atau pengetahuan akhir zaman atau hal-hal terakhir. Konsep ini adalah ajaran inti dari setiap agama, sehingga muncul beragam klaim kebenaran tentang hari terakhir. Setiap agama meyakini agama mereka adalah benar, termasuk dua agama besar, yaitu Islam dan Katolik. Penelitian ini akan merumuskan dua masalah, seperti: Bagaimanakah konsep keselamatan menurut Islam dan Katolik? Dan apa saja persamaan dan perbedaan konsep keselamatan antara agama Islam dan Katolik. Penelitian ini dilakukan untuk mengetahui Eskatologi Islam dan Katolik khususnya tentang tanda-tanda kiamat. Ada beberapa persamaan dan perbedaan antara agama Islam dan Katolik tentang Eskatologi itu, seperti iman kepada hari akhir, nama-nama hari kiamat dan juga waktu terjadinya hari akhir. Perbedaan antara agama Islam dan Katolik terletak pada ajaran teologis: Islam menekankan monoteisme dan Katolik percaya pada Trinitas. Ada perbedaan lainnya, yaitu tentang manusia: dalam Islam, manusia itu fitrah (suci), sedangkan dalam Katolik, manusia itu pendosa. Dalam agama Katolik Yesus menyelamatkan orang berdosa sedangkan dalam Islam orang diselamatkan berdasarkan iman.
Analisa Pengaruh Service Quality, Price Fairness, Word Of Mouth, Norma Subjektif dan Perceived Behavioral Control Terhadap Intensi Berkunjung Di Unit Rawat Jalan RS “M” Jakarta
Authors: Dewi Sandra , Armyta Nurullah , Supriyantoro Supriyantoro
Published: December 2023

Latar Belakang: Keputusan memilih Rumah Sakit sebagai tempat berobat adalah hal yang mempengaruhi tingkat kunjungan pasien yang dimediasi oleh banyak faktor. Pengambilan intensi berkunjung dapat diambil secara hati-hati jika didukung oleh data dan informasi yang relevan yang mendukung pertimbangan terhadap isu yang dihadapi.
Tujuan: Mengetahui pengaruh service quality,price fairness, word of mouth serta norma subjektif dan perceived behavioral control terhadap intensi pasien untuk berkunjung.
Metode: Penelitian ini menggunakan penelitian kuantitatif cross sectional analisa regresi berganda dengan uji hipotesis . Pengambilan sampel menggunakan teknik purposive sampling dan proses pengumpulan data menggunakan kuesioner dengan skala likert, selanjutnya dianalisis menggunakan three box method.
Hasil: Dari hasil uji parsial koefisien regresi, diketahui bahwa service quality memiliki pengaruh paling tinggi, nilai koefisien regresi β sebesar +0,327. Secara keseluruhan variabel yang diteliti yaitu service quality, price fairness, word of mouth, norma subjektif dan perceived behavioral control memiliki pengaruh yang signifikan terhadap intensi berkunjung.
Kesimpulan: Penelitian ini telah menggambarkan bila rumah sakit melakukan perbaikan terhadap semua indikator di dalam kualitas layanan akan mempengaruhi intensi berkunjung secara lebih baik.
LOS PUEBLOS INDÍGENAS ANTE EL PARTIDO ACCIÓN NACIONAL Y LA FUNDACIÓN KONRAD ADENAUER. CONSERVADURISMO E INDIGENISMO. UNA MIRADA DESDE LAS IDENTIDADES INTERCULTURALES
Authors: Serventich Alfredo Rajo
Published: December 2023

Este artículo esboza los planteamientos de la Fundación Konrad Adenauer y del Partido Acción Nacional de México con relación a la cercanía de las cosmovisiones cristiana e indígena. A lo largo de esta colaboración, los postulados de las dos organizaciones son cuestionadas a través de la praxis, en especial por el manejo electoral surgido a partir de ella, el sustrato de ideología individualista encubierto y la omisión de toda reflexión que recale en ideales y prácticas autonómicas por parte de las comunidades indígenas de nuestro continente latinoamericano.
Home as a Tourist Destination. Nostalgic Tourism of Germans Expelled from Czechoslovakia after 1945 and Its Construction in the Sudeten-German Media Discourse
Authors:   Etnologický ústav AV ČR, Kreisslová Sandra
Published: December 2023

The study deals with the phenomenon of nostalgic tourism of German-speaking inhabitants who were forcibly displaced from Czechoslovakia after 1945 and travelled to their old homeland during the Cold War period. The first legal individual and later also organised trips to Czechoslovakia date back to the second half of the 1950s; these were a reaction both to the slightly liberalising Czechoslovak tourism policy and granting of entry visas to western-European foreigners, and to the improving economic situation of German expatriates in the Federal Republic of Germany. Attention will be paid to specific features of these travels, whose final destination was the former home behind the Iron Curtain, their historical transformations, and the media construction in the Sudeten-German discourse of that time, which reveals nostalgic tourism
Logistics Management
Authors:   Dr. D. Y. Patil Institute of Technology, Kale Kiran S. , Londhe Sandeep Suresh ,   Dr. D. Y. Patil Institute of Management and Research
Published: December 2023

Management students will find Logistics Management to be an all-inclusive textbook that covers all the bases. Having an efficient logistic network allows businesses to compete on a global and local scale. This student-friendly book lays out the theory in great detail and includes a plethora of figures and exhibits that highlight the managerial components of logistics management. Writing in an accessible style and including real-life case studies within an Indian setting, this book is sure to be a valuable resource for students and young professionals.
Critical mineral: Germanium
Authors:   Montana Bureau of Mines and Geology, Davison R. , Van Rythoven A.
Published: December 2023

Fact sheet covering the potential in Montana for the critical mineral germanium.
Critical mineral: Yttrium
Authors:   Montana Bureau of Mines and Geology, Davison R. , Van Rythoven A.
Published: December 2023

Fact sheet covering the potential in Montana for the critical mineral yttrium.
Critical mineral: Thulium
Authors:   Montana Bureau of Mines and Geology, Davison R. , Van Rythoven A.
Published: December 2023

Fact sheet covering the potential in Montana for the critical mineral thulium.
أثر تطبيق الإدارة بالأهداف على الأداء المؤسسي لمنظمات المجتمع المدني دراسة أجريت على عينة من مدراء منظمات المجتمع المدني
Authors: حسام أحمد الحلاق  , أ.د.م جابر شعيب الاسماعيل
Published: December 2023

هدفت الدراسة الى التعرف على أثر ممارسات الإدارة بالأهداف على الأداء المؤسسي لمنظمات المجتمع المدني السورية العاملة من تركيا، إضافة لتحديد ابعاد الإدارة بالأهداف التي ترتبط وتؤثر على الأداء المؤسسي، من خلال اختبار العلاقة بين الإدارة بالأهداف بأبعادها ( بعد وضع الأهداف، بعد تنفيذ الأهداف، بعد متابعة تنفيذ الأهداف) والأداء المؤسسي لمنظمات المجتمع المدني .

أظهرت نتائج الدراسة وجود علاقة طردية قوية بين الإدارة بالأهداف بأبعادها ( بعد وضع الأهداف، بعد تنفيذ الأهداف، بعد متابعة تنفيذ الأهداف) والأداء المؤسسي ، حيث بلغت قوة هذه العلاقة ( 0.75) ، كما أن المتغيرات المستقلة الثلاثة للإدارة بالأهداف تفسر حوالي 75 % من التباين والتغير الحاصل في المتغير التايع الأداء المؤسسي.

كما أظهرت الاختبارات الإحصائية أن الإدارة بالأهداف بأبعادها ( بعد وضع الأهداف، بعد تنفيذ الأهداف، بعد متابعة تنفيذ الأهداف) لها أثر ذو دلالة إحصائية على الأداء المؤسسي.
قياس أثر حماية البيئة في تحقيق التنمية المستدامة في السودان- دراسة حالة ولاية جنوب دارفور
Authors: د. حسن علي عثمان فطر  , د. آدم سليمان عيسى بخيت
Published: December 2023

هدفت الدراسة إلى قياس أثر حماية البيئة في تحقيق التنمية المستدامة في السودان خلال الفترة (1995- 2022م) دراسة حالة ولاية جنوب دارفور، وبيان مدى أثر دمج الاعتبارات البيئية في السياسات التنموية في تحقيق التنمية المستدامة. تمثلت مشكلة الدراسة في السؤال الرئيس: لماذا لم تتحقق التنمية المستدامة في السودان بالرغم من غزارة موارده الطبيعية؟ اتبعت الدراسة المنهج الوصفي التحليلي، واعتمدت على المصادر الأولية مستخدمة الاستبيان كأداة رئيسة لجمع بيانات مجتمع الدارسة الذي شمل العاملين في الجمعية السودانية لحماية البيئة. تم اختيار عينة عشوائية بسيطة بلغت (102) مفردة. لتحليل البيانات استخدمت الدراسة برنامج الحزم الإحصائية للعلوم الاجتماعية (spss). خلصت الدارسة إلي أن لحماية البيئة أثر إيجابي على التنمية المستدامة في السودان. أكد تحليل اختبار مربع كاي عند مستوي دلالة 0.05 وجود علاقة إيجابية ذات دلالة إحصائية بين حماية البيئة وتحقيق التنمية المستدامة في السودان. أوصت الدارسة الاهتمام بدمج الاعتبارات البيئية في السياسات التنموية من أجل المحافظة على البيئة وسلامتها.
Regulations for the Safe Transport of Radioactive Material
Authors:   INTERNATIONAL ATOMIC ENERGY AGENCY
Published: December 2023

The transport of radioactive material is an essential activity worldwide. Both safety and security during transport are matters of national and international importance. This publication is the latest edition of IAEA Safety Standards Series No. SSR-6, Regulations for the Safe Transport of Radioactive Material. It is supported by six IAEA Safety Guides which provide explanations and guidance for established requirements in SSR-6 to facilitate harmonized implementation. The regulations apply to the transport of radioactive material by all modes on land, water or in the air, including transport that is incidental to the use of the radioactive material. Transport comprises all operations and conditions associated with and involved in the movement of radioactive material; these include the design, manufacture, maintenance and repair of packaging, and the preparation, consigning, loading, carriage including in-transit storage, unloading and receipt at the final destination of loads of radioactive material and packages. These requirements form an integral part of regulations worldwide, therefore SSR-6 and its associated guidance documents are a requisite source of guidance information for governments, regulators, and all individuals involved in the aforementioned activities of transport of radioactive material. These requirements are adopted into the UN Model Regulations which are subsequently adopted by the IMDG Code by the International Maritime Organisation for shipment by sea and by the International Civil Aviation Organization Technical Instructions for shipment by air. Both the IMDG Code and the ICAO Technical Instructions are globally implemented and mandatory. Land transport is the responsibility of the national government of each Member State, and the SSR-6 requirements are adopted for national transport safety regulations for shipments on land.
Joining Hands for Better Health: The Inception of the New Asian Journal of Medicine
Authors: Dergaa Ismail , Ben Saad Helmi
Published: December 2023

No abstract
From Tradition to Science: Unravelling the Mysteries of Wet Cupping Therapy for Modern Healthcare
Authors: Dergaa Ismail , Ben Saad Helmi
Published: December 2023

Background. Wet cupping therapy (WCT) is an ancient therapeutic practice involving suction cups and controlled incisions. It is widely used in traditional and complementary medicine systems for treating diverse conditions. This narrative review aimed to summarize the current evidence on the effects of WCT and provide an overview of its therapeutic potential.
Methods. A comprehensive literature search was conducted using PubMed, Embase, and Scopus databases to identify studies published from January 2000 to March 2023, evaluating the therapeutic effects of WCT in various health conditions. The retrieved studies were critically reviewed and analyzed to identify key findings.
Results. The findings suggest that WCT has potential therapeutic effects across different health conditions. It has been reported to alleviate pain, reduce inflammation, modulate the immune response, improve blood circulation, and enhance overall well-being. Efficacy of WCT has been demonstrated in managing musculoskeletal disorders (e.g., low back pain, rheumatoid arthritis), respiratory conditions (e.g., asthma, chronic obstructive pulmonary disease), and mental health issues (e.g., anxiety, sleep quality). Additionally, WCT has shown promise as a complementary therapy for metabolic disorders, cardiovascular diseases, and infertility.
Conclusion. WCT exhibits potential benefits as a traditional therapeutic modality. Accumulated evidence suggests it can provide symptomatic relief, improve quality of life, and complement conventional treatments. However, it is important to acknowledge the limitations of the reviewed studies. The absence of a standardized cup placement protocol hinders determining optimal placement for specific health conditions. Further investigation considering anatomical descriptions and individual variations is necessary to enhance treatment effectiveness. Moreover, the underlying mechanisms of WCT's therapeutic effects are still hypothetical, warranting more direct and accurate evidence. Future research should focus on elucidating these mechanisms to establish a comprehensive understanding of WCT's effects.
A composição Florística da Arborização Urbana de Botelhos, MG
Authors: Morais Sandra Monteiro Ferraz , Pereira Allan Arantes , Oliveira Ulisses Ferreira de
Published: December 2023

Esse trabalho teve por objetivo fazer o levantamento florístico da zona urbana do município de Botelhos, situado no sul de Minas Gerais, como forma construir base científica para o planejamento urbanístico da cidade. No inventário 100% foram registradas de 2339, com 76 espécies e 38 famílias. Foram considerados todos os indivíduos presentes em calçada, praça e canteiro central. As três famílias mais abundantes foram Rutaceae, Bignoniaceae e a Lythraceae e as espécies dominantes nas ruas foram Murraya paniculata e a Lagerstroemia indica; em canteiros a Handroanthus chrysotrichus e espécies da famíliaArecaceae (Roystoneaspp). Conclui-se que, conforme demostrado em outros inventários florestais urbanos do Brasil, a tendência de plantas de origem exótica se confirma e a pouca diversidade florística demonstra que há uma necessidade de um melhor planejamento urbanístico para a cidade de Botelhos.
Brasil e União Europeia nas negociações agrícolas da OMC: uma insólita parceria
Authors: Kloss Emerson
Published: December 2023

Este ensaio versa sobre as tratativas entre o Brasil e a União Europeia no processo preparatório da 10ª Conferência Ministerial (CM10) da Organização Mundial de Comércio (OMC), realizada em Nairóbi, capital do Quênia, em 2015. Descreve não apenas o processo que culminou na elaboração de uma proposta conjunta para o pilar de competição nas exportações em agricultura, a qual foi considerada crucial para o resultado obtido em Nairóbi – eliminação dos subsídios à exportação e disciplinas adicionais para medidas de efeito equivalente, como também analisa de que modo esta inusitada parceria se insere no contexto das alianças do Brasil no âmbito da OMC. O artigo argumenta que prescindir do apoio de parceiros com afinidades políticas em favor de uma aproximação pragmática com membros que compartilham os mesmos objetivos comerciais imediatos, ainda que por razões distintas, podem contribuir para produzir os resultados almejados. Palavras-chave: OMC, Brasil e União Europeia, comércio agrícola internacional, competição nas exportações.
Brasil e Índia: uma relação econômica a demandar ajustes
Authors: Baumann Renato
Published: December 2023

Brasil e Índia mantêm já há décadas boas relações diplomáticas. As trajetórias seguidas na orientação de política econômica nos dois países não apenas experimentaram diversas mudanças durante esse período, como registram diferenças significativas. Se a economia brasileira apresentou, nesses 70 anos, altos e baixos, a história econômica da Índia é um pouco distinta. Há, no entanto, argumentos para que a aproximação entre o Brasil e a Índia avance, em ritmo mais decidido e orientado do que o experimentado nesses últimos 70 anos. Palavras-chave: abertura comercial, estruturas produtivas, comércio de bens e serviços, relações bilaterais.
A competitividade brasileira na indústria de alta tecnologia: o modelo aeronáutico
Authors: Santos Ricardo Henrique
Published: December 2023

Concomitantemente com as diversas campanhas de afirmação da vocação do país como um produtor primário, a pauta de exportações revela outra capacidade disputada pelos grandes competidores mundiais: a produção de alta tecnologia no segmento aeronáutico. O setor trabalha, necessariamente, na fronteira do conhecimento e é o responsável pelo desenvolvimento de um robusto cluster1 de Ciência e Tecnologia. Sua capacidade de inovação acrescenta à sociedade as benesses do crescimento econômico, como aumento da renda nacional, retorno de capital para investimento na atividade produtiva e nas melhorias de serviços prestados pelo estado. Portanto, qual é a contribuição da indústria aeronáutica para o crescimento econômico brasileiro comparativamente com a produção de commodities e demais indústrias de alta tecnologia? Qual é a participação estatal para a geração de um ambiente de negócios que permita à indústria nacional contrapor-se à busca pela hegemonia comercial das empresas internacionais líderes desse mercado? Uma vez que o domínio de tecnologias rearranja a participação dos países na disputa comercial, conhecer as respostas a tais questões é o caminho para a formulação de uma estratégia nacional que garanta ao setor produtivo brasileiro a capacidade competitiva, bem como posicionamento na economia internacional correspondente aos interesses e necessidades nacionais. Palavras-chave: indústria aeronáutica, competitividade, desenvolvimento tecnológico.
Design, Development, Fabrication and Type Certification of an Indigenous Fatigue Meter
Authors: Madhavan Chinmayee
Published: December 2023

Fatigue meter is an instrumentation system used to measure the fatigue life of an aircraft. Flight data collected during operational flights of an aircraft using a fatigue meter can be processed and analyzed to study the variations in the load spectrum between different aircraft of the same type. Load factor experience can be quantified to fatigue damage occurred. Considerable variations in load experience can happen due to different operations, operated by different operators and different terrain. Damage index calculations can show inspection intervals and component replacement times. This implies that considerable advantage could be obtained if inspection schedules for individual aircraft are adopted on the basis of individual aircraft load spectrum monitoring. Thus aircraft load monitoring can give an indication of the profits that can be gained. It is a means to optimize maintenance and enhance safety. "In service load monitoring" can be achieved using a fatigue meter. In a fatigue meter an independent Self Monitoring Analysis and Recording Technique (SMART) is used. The sensor used is a servo accelerometer. The vertical acceleration is continuously monitored and recorded into eight g-leveL counters. Flight data is accumulated on "flight by flight" basis and is used for computing the fatigue damage index. Basically there are two types of fatigue meters, composite type and the split type. In the composite type the acceleration sensor is mounted in the unit and is mounted at the CG margin of the aircraft. In the split type, accelerometer can be mounted in the CG margin and the equipment can be mounted in the cock-pit. At the Aerospace Electronics Division of the National Aerospace Laboratories., a composite electro-mechanical type fatigue meter for a fighter aircraft was designed, fabricated, type certified and is under flight trials. After type certification, the unit will be used in a fleet of fighter aircraft. A variant of this system, which is a split type, using a microprocessor is also developed. The paper describes the electro- mechanical fatigue meter in detail, highlighting the type certification tests done for airworthiness.
Effect of Material Damping Characteristics on Dynamic Analysis of Rotor-Bearing Systems
Authors: Maharathi B.B. , Mishra S.N. , Acharya P. , Singh K.C. , Das R.
Published: December 2023

Dynamical behaviour of rotor-bearing systems is significantly influenced by a large number of parameters related to rotor, disk and bearing. However, inherent material damping. parameters of rotor play an important role on dynamic characteristics of rotor-bearing systems. Conventional transfer matrix method is modified by incorporating viscous and hysteretic form of internal damping parameters of rotor in the analysis. A three-disks rotor system mounted on rigid supports as welL as on flexible bearings is taken as a physical model to demonstrate the effects of damping on dynamic characteristics of the system. The viscous damping of the rotor system diminishes the dynamic response where as the hysteretic form of damping always destabilises the system.
Nonlinear Elastic Constitutive Model for Pvdf
Authors: Sathiya Naarayan S. , Lakshmana Rao C. , M. Sivakumar Srinivasan
Published: December 2023

This paper concerns the development of a constitutive model of Polyvinylidene fluoride (PVDF), a piezoelectric polymer. Suitable assumptions are made based on experimental data available in literature. The model is proposed for Form II of the PVDF material. Mooney-Rivlin and Neo-Hookean models are assumed to predict the finite elastic deformation characteristics of the material and experimental data are fitted to test the range of validity of the model. Predictions based on the Mooney-Rivlin and the Neo-Hookean models show that the Mooney-Rivlin model correlates very well with the experimental data within reasonably finite strain ranges (deviation upto 3-5Vo) whereas the Neo-Hookean model deviates largely from the experimental (about 50Vo).
History of Powered Flight
Authors: Pai B.R. , Kodanda B.
Published: December 2023

As we move through the 2lst century, with each fly-by-wirefighter, each 550-seat airliner costing many years of work, it seems unimaginable that it all began with a few lengths of muslin cloth and a rickety engine, and incredible bravery or naivety 100 years ago. History was made on December 17, 1903 on the wind-swept sand dunes of Kitty Hawk (North Carolina), when the Wright brothers made the first powered heavier than-air airplane J light with a degree of control. This article commemorating the I00 In anniversary of the Wright brothers' first light, attempts to highlight the untiring efforts of people in aviation history. The significance of these early efforts to fly from George Caley's glider to the latest Airbus A-380 and the development of aviation in India from JRD Tata's pioneering efforts to the indigenous development programmes of a 2 seater light plane (Hansa), a l4 seater light transport multi-role aircraft (Saras), the Light Combat Airuaft Oejas) and the Advanced Light Helicopter (Dhruv) are touched upon. In brief, it traces the formative and the recent years of aviation. It spans the period from Isg|through Wright brother's impact, first passenger airplanes, engine development when the pilots competed for air races to the present scenario, when any point on earth can be reached in only a few hours by air.
Flight : 100 Years of Aviation
Authors: Sabharwal D. P.
Published: December 2023

No Abstract
Asymmetric Dynamic Buckling of Isotropic/ Anisotropic Spherical Caps
Authors: Gupta S.S. , Patel B.P. , Khatri K.N. , Ganapathi M. , Sambandam C.T. , Giri S.N.
Published: December 2023

This paper deals with nonlinear asymmetric dynamic buckling of clamped isotropic/anisotropic spherical shells under suddenly applied pressure loads. The formulation is based on first-order shear deformation theory and Lagrange's equation of motion. The nonlinearity due to finite deformation of the shell considering von Karman's assumptions is included in the formulation. The buckling loads are obtained through dynamic response history using Newmark's numerical integration scheme coupled with a Newton-Raphson iteration technique. An axisymmetric curved shell element is used to investigate the dynamic characteristics of the spherical caps. The pressure value beyond which the maximum average displacement response shows significant growth rate in the time history of the shell structure is considered as critical dynamic load. Detailed numerical results are presented to highlight the influences of shell geometric parameter, orthotropicity, ply-angle, number of layers and asymmetric mode on the critical load of spherical caps.
Estimation of Drag Coefficient From Radar Tracked Trajectory Data of an Artillery Shell
Authors: Ghosh A.K. , Sridhar I.V.S. , Singhal A. , Prakash Om
Published: December 2023

An attempt is made to estimate aerodynamic parameters using radar tracked coordinates of a free flight artillery shell. The present paper proposes schemes using maximum likelihood method to estimate average values of drag coefficient and its functional dependence on Mach number by processing trajectory data of an artillery shell. The proposed schemes were validated by applying these on simulated trajectory data of a routinely used artillery shell. Based on the results obtained, it can be concluded that both schemes could advantageously be used to estimate drag coefficient using radar tracked trajectory data of an artillery shell.
Dynamic Stability Analysis of Square Isotropic/Laminated Composite Plates With Circular Cutout Subjected to Non-Uniform Follower Edge Load With Damping
Authors: Ravi Kumar L. , Datta P.K. , Prabhakara D.L.
Published: December 2023

The present investigation deals with the study of vibration and dynamic instability behaviour of square isotropic/laminated composite plates with circular hole subjected to partially distributed follower edge forces using finite element method. The first order shear deformation theory is used to model the plate, considering the effects of shear deformation and rotary inertia. The modal transformation technique is applied to the resulting equilibrium equation for subsequent analysis. Structural damping is introduced into the system in terms of equivalent viscous damping to study the significance of damping on stability characteristics. The effects of cutout size, load width, boundary condition, ply orientation, direction control of the load and damping parameters are considered for the stability behaviour of the plates. The results show that under follower loading, the system is susceptible to instability due to flutter alone or due to both flutter and divergence, depending on system parameters.
Increasing of Air Engine Efficiency Basing on Optimization Technology
Authors: Kuzmenko M.L. , Egorov I.N. , Shmotin Yu N.
Published: December 2023

At present NPO Saturn possesses the complex of technologies, which allow obtaining the most efficient technical solutions when creating up-to-date gas-turbine engines and their components. In this paper there are presented the examples researches aimed at axial compressors perfection basing on up-to-date analysis and optimization tools. As the analysis tools there are used the well-known commercial software packages (CFX-TASC flow, ANSYS etc.), as well as the models developed by NPO Saturn; the adequateness of latter had been proved by experimental data. To rise the efficiency and margins of gas dynamic stability for multistage axial compressors NPO Saturn is using widely the methods of CFD and optimization based on IOSO technology. In the paper there are presented some examples of real-life problems solution.
UAV Wing Design - A New Challenge
Authors: Shepshelovich Misha
Published: December 2023

Advanced airfoil design concepts and modern wing design methodology allow development of mission-tailored, customized wing for any new aerodynamic configuration. This is especially relevant for UAV wing design, where variety of mission specifications, multi-point design requirements and imposed non-aerodynamic constraints make it unpractical the use of existing wings in configuration evaluation process. The development efforts on UAV wing design should concentrate on the radical improvement of aircraft performance, provide improved payload carriage capabilities, ensure flight safety of air vehicles, their maneuverability, capability to perform in unfavorable weather conditions and comply with structural and internal volume constraints. IAI initiated development of in-house capabilities on UAV wing design in mid 80‘s, recognizing the principal differences between requirements for UAV operation and known types of air vehicles such as sailplanes and general aviation aircrafts. It was acknowledged, that for most cases, design of a new UAV wing is a practically unavoidable choice, that should be supported by the adequate engineering capabilities. The build-up of technological infrastructures at IAI included adoption of CFD tools, promotion of advanced design concepts and WT testing of airfoils and complete configurations. The first designs targeted subsonic, long endurance UAV, concentrating on development of thick, high-lift NLF sections. This was followed by variety of subsonic and transonic designs, including wings development for high altitude flight, application of swept NLF wing technology to design of subsonic/transonic wings, promotion of the concept of hybrid transonic/subsonic airfoils, design of transonic unswept NLF wings, development in the field of low Reynolds number aerodynamics and evaluation of Mini/Micro UAV wings. IAI experience on UAV wing design is outlined in this paper by presenting a number of specialized designs and discussing the rationale of their development. This is followed by definition of future development directions that might be considered for continuation efforts on development of UAV wings.
Free Vibration of Functionally Graded Skew Plates Subjected to Thermal Environment
Authors: Sundararajan N. , Prakash T. , Singha Maloy K. , Ganapathi M.
Published: December 2023

Here, the free vibration behavior of functionally graded skew plates is investigated using finite element procedure. Temperature field is assumed to be a uniform distribution over the plate surface and varied in thickness direction only. Material properties are assumed to be temperature dependent and graded in the thickness direction according to simple power law distribution. For the numerical illustrations, silicon nitride/stainless steel is considered as functionally graded material. The variation in frequencies is highlighted considering gradient index, temperature, thickness and aspect ratios, and skew angle of the plate.
Pathways for Indian Aerospace Programmes : Next 25 Years
Authors: Vasagam R.M.
Published: December 2023

No Abstract
The Reinforcement Effect of Nanoclay on the Damping Characteristics of Hybrid Laminated Composites
Authors: Velmurugan R. , Karthikeyan K.
Published: December 2023

The Hybrid Nanocomposite (HNC) laminates are processed by reinforcing the chopped strand mat glass fiber and organically modified montmorillonite clay (OMT) in the polyester matrix. The different percentage by weight (1, 2, 3, and 5% ) of OMT are mixed by high speed shear mixer into the polyester matrix and then the HNC laminates are fabricated by introducing pre-mixed polyester-clay into the CSM by hand lay-up technique. A tensile test result reveals that nanoclay in polyester matrix significantly improves the tensile modulus and strength of HNC. The results also indicate that increasing the amount of nanoclay beyond 2% by weight reduces the mechanical properties but surpassing the basic glass fiber filled system. The reinforcing effect of clay enhances the flexural modulus and strength. Considerable improvement in impact energy absorption is seen from the impact test. Dynamic mechanical analysis shows that incorporation of nanoclay improves the storage modulus and Loss tangent of HNC. Free vibration tests and logarithmic decrement methods are used to predict the dynamic characteristics such as natural frequency, and damping factor for the first four modes of different clay concentrations. Dynamic results show that second phase nanoscale dispersion between the matrix and E-glass fiber significantly enhances the internal damping of hybrid composites.
Nonlinear Aerodynamic Global Model Identification using Gram-schmidt Orthogonalization
Authors: Ismail Shaik , Singh Jatinder
Published: December 2023

This paper discusses a simple technique to identify global models for nonlinear aerodynamic force and moment coefficients of aircraft using multivariate orthogonal functions. Classical Gram-Schmidt procedure and Predicted Squared Error metric are used to generate the orthogonal functions. Global models for the F-16 aircraft are identified from a simplified subsonic (Mach < 0.6) wind tunnel database available in open literature. The identified models are compared with those found in literature for the same wind tunnel database and conclusions are drawn.