bluuebunny/crossref_metadata_2025 huggingface dataset:
Capítulo 8. La formación del periodista en el análisis de informativos de televisión. Análisis de caso: el OCITV en España y Colombia en tiempos de covid-19
Authors: Rodríguez-Pérez Carlos , Díaz-Cuesta José , Aparicio-González Daniel
Published: March 2023

Durante la pandemia de la covid-19 los medios de comunicación adquirieron un protagonismo relevante. Particularmente, la televisión se convirtió en un referente informativo para los ciudadanos españoles y colombianos. El Observatorio de la Calidad de la Información en Televisión (OCITV), proyecto de investigación de la Universidad Complutense de Madrid, capacitó y formó a estudiantes españoles y colombianos en la evaluación y tratamiento de la información en televisión durante el primer cuatrimestre del 2020, periodo en el que se realizó un proyecto piloto mediante el cual el OCITV se alió con la Universidad de Ibagué (Colombia). Con base en diversas teorías de comunicación (agenda-setting, priming, framing e imaginarios sociales), se adoptaron los instrumentos del OCITV para la codificación de los distintos componentes audiovisuales y textuales de los informativos televisivos, y posteriormente se evaluaron los procesos de aprendizaje de los estudiantes. Los resultados indican un elevado índice de satisfacción del estudiantado colombiano y español por la relevancia práctica y utilidad pedagógica del proyecto, aspectos que subrayan el valor de incorporar metodologías para la investigación formativa en los grados universitarios de Periodismo y Comunicación Social. Asimismo, el análisis evidencia semejanzas importantes en cuanto a cómo la televisión narró la pandemia en España y Colombia. Específicamente, los resultados señalan que en ambos países predominó una cobertura informativa que priorizó la narrativa nacional y que recurrió a encuadres similares («El Estado nos protege», «Somos solidarios» o «El virus mata») a la hora de informar sobre la pandemia de la covid-19. Además, en ambos países predominó el marco positivo cuando se referenció la gestión pública. Este proyecto piloto aporta evidencias relevantes sobre la pertinencia de la investigación formativa para los futuros comunicadores, además de indagar en qué manera la televisión narró en Colombia y España la pandemia de la covid-19.
Palabras clave: televisión; informativos; covid; framing; formación periodística; España; Colombia.
Shaping the Equine Body
Authors: Guest Kristen , Mattfeld Monica , Raber Karen , Forrest Susanna , Nash Richard , Vaught Jeannette
Published: March 2023

This roundtable discussion brings together four prominent scholars from equine studies (Susanna Forrest, Richard Nash, Karen Raber, and Jeannette Vaught) to discuss how we have historically shaped the equine body (and mind) when we breed and train horses, and how taking this history into account might allow us to imagine new ways of living with horses. Three core concerns are addressed from multidisciplinary perspectives: How do human representations, desires, and fantasies inform our interactions with horses? How have equine bodies and minds been shaped by us over time? How do the stories we tell ourselves about equine bodies in turn shape how we relate to horses—and how might we do this differently?
Galloping through Culture: Horse Racing and Global History
Authors: Willekes Carolyn
Published: March 2023

Sinclair W. Bell, Christian Jaser and Christian Mann, eds., The Running Centaur: Horse-Racing in Global-Historical Perspective. London: Routledge, 2022. 216 pp. $160 (hb).
Machine Learning Meets Control Theory
Authors: Brunton Steven L.
Published: March 2023

In this video, we provide a high level overview of reinforcement learning, along with leading algorithms and impressive applications.
Tạp chí Nghiên cứu Y học tập 106 (1) 2017
Authors: Nghiên cứu Y học Tạp chí
Published: March 2023

Toàn văn Tạp chí Nghiên cứu Y học tập 106 (1) 2017
Tạp chí Nghiên cứu Y học tập 108 (3) 2017
Authors: Nghiên cứu Y học Tạp chí
Published: March 2023

Toàn văn Tạp chí Nghiên cứu Y học tập 108 (3) 2017
Check Your Presuppositions! A New Kind of Foundationalism in Objectivism
Authors: Tyson David
Published: March 2023

Ayn Rand’s Objectivism holds a foundationalist view of knowledge—that knowledge is hierarchical, with the less basic supported by inference from the more basic, which is known directly. But two very different forms of foundationalism (deductive and presuppositional) are observable in Objectivism, and vestiges of deductivism, which Rand explicitly rejected, can be found in attempts to systematize her philosophy. This article attempts to resolve conflicts between the two approaches. It endorses presuppositional foundationalism and suggests that Rand’s view be modified accordingly.
Postmodern Rand, Transatlantic Rand
Authors: Long Roderick T.
Published: March 2023

Neil Cocks’s collection Questioning Ayn Rand: Subjectivity, Political Economy, and the Arts engages Rand’s ideas from a standpoint that is philosophically postmodernist and politically adversarial; while the contributors occasionally make illuminating connections, their obscurantist style, their superfi cial engagement with Rand, and an impatience borne of hostility render the result disappointing. Claudia Brühwiler’s Out of a Gray Fog: Ayn Rand’s Europe, by contrast, provides a fascinating look at Rand’s European connections, her complex attitudes toward European culture, and the European reception of her ideas, which serves as a useful corrective to the conventional narrative of Rand’s hostility to Europe and Europe’s hostility to Rand.
The Relationship of Geopolitical Risk and Tourism in Turkey: Fourier Toda-Yamamoto Causes Analysis
Authors: SOYU YILDIRIM Esra
Published: March 2023

Economic growth is fueled by the tourism industry, which is crucial for emerging nations. The risk variables that can have an impact on the tourism industry, which has a very delicate structure, must be looked into. Researching the link between geopolitical risk and tourism has become necessary, especially in Turkey, where geopolitical tensions are at their highest. The study's objective is to investigate the connection between geopolitical risk and tourism in the context of Turkey. With the aid of the Fourier Toda-Yamamoto (TY) causality test and the Fractional Fourier Toda Yamamoto causality test, the relationship between the number of tourists, geopolitical risk, Brent oil, real effective exchange rate, and CPI in Turkey during the 2003:02-2021:01 period was examined in this study. The Fourier TY causality test revealed a causal relationship between BRENT and CPI variables and TS variables, as well as a causal relationship between TS variables and BRENT variables and a causal relationship between REER variables and CPI variables. Additionally, it can be observed that there is a causative relationship between BRENT and CPI and TS, as well as between TS and BRENT and CPI, according to the findings of the Fractional Fourier TY causality test used to determine whether the shocks are permanent. In addition, there is a one-way causality relationship from REER to CPI. The results show that the shocks are permanent. Based on the literature reviewed, while geopolitical risks are expected to negatively affect the number of tourists, no causal relationship could be found between geopolitical risks and the number of tourists in the case of Turkey.
Dermatoscopic characterization of various vascular signs in skin tumors
Authors:   Main Military Clinical Hospital named after academician N.N. Burdenko Russian Defense Ministry Moscow Russia, Lamotkin Igor A. , Korabelnikov Daniil I. ,   Moscow Haass Medical and Social Institute Moscow Russia, Perevalova Elena G. ,   MDElena Dermatology and Cosmetology Clinic Moscow Russia, Lamotkin Andrey I. ,   Moscow Haass Medical and Social Institute Moscow Russia
Published: March 2023

The authors considered the dermatoscopic vascular signs most frequently encountered in the practice of dermatologists, cosmetologists and oncologists in melanocytic and non-melanocytic skin tumors. The paper presents modern views on dermatoscopic diagnosis of skin tumors. Based on clinical experience and data from the literature, dermatoscopic features that occur in various melanocytic and non-melanocytic skin tumors are identified.
Sequential external osteosynthesis of gunshot fractures of limb bones at the stages of medical evacuation
Authors:   Main Military Clinical Hospital named after academician N.N. Burdenko Russian Defense Ministry Moscow Russia, Artemev Aleksandr A. , Kerimov Artur A. ,   Main Military Clinical Hospital named after academician N.N. Burdenko Russian Defense Ministry Moscow Russia, Perehodov Sergej N. ,   FSBEI HE A.I. Yevdokimov MSMSU MOH Russia Moscow Russia, Grigoriev Maksim A. ,   City Clinical Hospital No. 13 of the Moscow Healthcare Department Moscow Russia, Nelin Maksim N. ,   Main Military Clinical Hospital named after academician N.N. Burdenko Russian Defense Ministry Moscow Russia, Torshina Svetlana V. ,   Main Military Clinical Hospital named after academician N.N. Burdenko Russian Defense Ministry Moscow Russia
Published: March 2023

Staged treatment of the patients with gunshot fractures of long bones implies a differentiated approach to the choice of different methods and means of extremity immobilization taking into account their peculiarities and functional capabilities. The frequency of different types of osteosynthesis in specialized care of 212 wounded patients with 276 gunshot fractures of long bones who were immobilized with external fixation devices (EFD) at the stage of advanced care was analyzed. It was revealed that when performing sequential osteosynthesis, preference for internal constructions was given — 122 (44.2%) observations. External osteosynthesis with Ilizarov apparatus (IA) was second most frequently used — 87 (31.5%). EFD was used as the definitive method of treatment in 67 (24.3%) cases. We studied and compared the constructive and functional capabilities of EFD and IA. The main advantage of the Ilizarov apparatus is the ability to control the position of the fragments and influence the process of regeneration by creating compression and distraction forces. The advantage of the EFD is the simplicity of use and, accordingly, the possibility of rapid fixation of the limb in resource-poor conditions with the simultaneous admission of a considerable number of wounded patients. Application of IA implies complex reconstructive interventions with prolonged subsequent treatment and rehabilitation. It should be taken into account when organizing staged treatment and use the type of osteosynthesis that corresponds to a particular stage. When providing qualified care, the use of EFD is absolutely indicated; when performing complex reconstructive operations of specialized trauma care, it is advisable to use the capabilities of the Ilizarov method.
Mixed type plasmacytoma with multiple myeloma: therapy and prognosis
Authors:   Main Military Clinical Hospital named after academician N.N. Burdenko Russian Defense Ministry Moscow Russia, Rukavitsyn Oleg A. , Tutaeva Viktorija V. ,   Main Military Clinical Hospital named after academician N.N. Burdenko Russian Defense Ministry Moscow Russia, Ignatieva Elena V. ,   Main Military Clinical Hospital named after academician N.N. Burdenko Russian Defense Ministry Moscow Russia
Published: March 2023

Extramedullary and paraskeletal plasmacytomas are not common and are usually one of the possible complications of multiple myeloma. This variant of the disease is more aggressive, less responsive to therapy, and recurs more often than conventional multiple myeloma. In our work, we described two cases of aggressively ongoing multiple myeloma with a mixed plasmacytic variant diagnosed at the time of setting the diagnosis. In both cases, a rapid progressive course was observed despite the wide range of both the newest drugs and the classical chemotherapy drugs used during treatment. Thus, this variant of the disease remains most often resistant to the therapy, with an unfavorable prognosis, and requires further study and improvement of the treatment approach to improve outcomes.
Neoadjuvant immunotherapy in the treatment of squamous cell carcinoma of the head and neck
Authors:   Main Military Clinical Hospital named after academician N.N. Burdenko Russian Defense Ministry Moscow Russia, Tsapir Aleksej V. , Pitkevich Maria Yu. ,   Main Military Clinical Hospital named after academician N.N. Burdenko Russian Defense Ministry Moscow Russia, Smolin Aleksej V. ,   Main Military Clinical Hospital named after academician N.N. Burdenko Russian Defense Ministry Moscow Russia, Kosyrev Vladislav Ju. ,   Department of Oncology at the N.V. Sklifosovskiy Institute of Clinical Medicine of the Sechenov University Moscow Russia, Vologdin Andrej A. ,   Branch of the Federal State Budgetary Military Educational Institution of Higher Education “Kirov Military Medical Academy” of the Ministry of Defense of the Russian Federation Moscow Russia
Published: March 2023

Head and neck tumors are among the ten most common neoplasms both in the world and in Russia [1]. In 64% of cases, squamous cell carcinoma of the head and neck is first diagnosed at the stage of a locally spread process. The emergence of new equipment for radiation therapy, new irradiation techniques such as VMAT, IMRT, better visualization, positioning of the patient and the emergence of new methods of drug treatment have allowed to increase the duration and quality of life of patients. However, even with such treatment approaches, the 5-year overall survival rate is only 50% [11]. The effectiveness of immunotherapy in patients with advanced squamous cell carcinoma of the head and neck and unsatisfactory results of surgical treatment of operable stages have set the ground for active study of neoadjuvant therapy [11]. In the available literature, we found that neoadjuvant immunotherapy for squamous cell carcinoma of the head and neck has already demonstrated its effectiveness in preliminary clinical studies, which makes it a promising direction for further study and implementation in the daily practice of an oncologist
Features of examination of patients with kidney and ureter injuries
Authors:   Federal State Budgetary Educational Institution of Higher Education ", Egorova Elena A. ,   A.I. Yevdokimov Moscow State University of Medicine and Dentistry",   of the Ministry of Healthcare of the Russian Federation Moscow Russia, Magomedova Zavazhat M. ,   FSBI «Clinical Hospital №1» Administrative office of the President of the RF Moscow Russia
Published: March 2023

The aim of the study was to assess the capabilities of magnetic resonance imaging (MRI) in the diagnosis of complications in patients with combined kidney and ureteral injuries during different periods of traumatic disease. The observation group included 139 patients aged from 18 to 72 years with renal and ureteral injuries, who were injured in traffic accidents. Complications of renal trauma occurred in 74 of 128 patients with isolated and combined injuries (59.2%), strictures were observed in 9 of 11 patients with ureteral trauma in the late period, and 1 of them had a failure of vesicoureteral anastomosis. The most common complication in the early and late periods of traumatic disease, occurring in 25.0% of cases, was pyelonephritis; patients with abscesses (12.5%) and acute renal failure (11.7%) were also common. The methods of choice for the diagnosis of combined injuries in the acute period were: ultrasound examinations according to the eFAST protocol and multislice computed tomography according to the “Polytrauma” protocol. Multiparametric magnetic resonance imaging (mpMRI) of the kidneys and ureters was indicated in the periods of early and late manifestations of traumatic disease to detect renal complications when there is a discrepancy between clinical data, ultrasound and multislice computed tomography (MSCT) findings, and there are contraindications for MSCT with intravenous contrast.
Study of prevalence of acute leukemia
Authors: Shridhar Aarti , Baghel Pushpraj Singh , Mahobia Rajesh , Bhargava Omprakash , Totade Sanjay
Published: March 2023

Introduction: Cancer of the body's blood-forming tissues, such as the lymphatic system and bone marrow, is known as leukaemia.There are various forms of leukaemia.Some leukemia types are more prevalent in children. Most cases of other types of leukemia are in adults. Usually, leukemia affects white blood cells. Although there is no known cause of acute leukemia, certain persons are at higher risk due to factors including radiation exposure. Exposure to particular chemical substances, such benzene. Viruses such as the virus that causes human T-cell leukemia. Method: This research was done via observation.82 leukemia cases that were discovered in the pathology division of the Netaji Subash Chandra Medical College in Jabalpur make up the sample size for the current prospective study. In the present study the cases were in the range of 1-70 years Clinically questionable cases were sent to the Department of Pathology, where a complete blood counts was performed using an automated hematology analyzer and a peripheral leishman stain smear investigation. Patients who have received treatment for a prior diagnosis are excluded in this study.
Posição da Comissão de Valores Mobiliários acerca do Reconhecimento de Ativos Contingentes: uma Análise com Base nos Processos Administrativos Sancionadores no Período 2010-2021
Authors: Santos Gilberto Santiago Silva , Gomes Monica Zaidan , Marques José Augusto Veiga da Costa , De Siqueira José Ricardo Maia
Published: March 2023

Uma das características qualitativas da informação contábil diz respeito a sua representação fidedigna. No entanto, nem sempre essa representação é compreendida da mesma maneira. Uma dessas situações se refere ao reconhecimento de ativos contingentes no balanço ou sua divulgação em notas explicativas. Uma condição comum nas normas contábeis para seu reconhecimento reside em ser praticamente certo seu recebimento. Cada categoria de stakeholder entende de uma forma o que significa ‘praticamente certo’. O propósito deste estudo consiste em verificar a posição do colegiado da comissão de valores mobiliários acerca do reconhecimento de ativos contingentes, por meio de processos administrativos sancionadores emitidos no período 2004-2021. Nesse sentido foram identificados nove casos materializados em processos administrativos sancionadores na comissão durante aquele período. A metodologia empregada foi, essencialmente, análise de conteúdo. Os resultados revelaram a CVM bastante reticente e conservadora, com aprovação desses ativos somente em duas situações. Mesmo mediante recursos, a CVM praticamente se manteve irredutível no tocante ao reconhecimento desses ativos. Foi percebido o fato da anuência de auditorias independentes sobre o registro desse ativo, ainda que por tradição sejam considerados cautelosos, prudentes. Por outro lado, os elaboradores insistem em reconhecer o ativo, a despeito dos frequentes processos administrativos Sancionadores (PAS) impetrados pela comissão exigindo a remoção desses valores do balanço patrimonial. Esta pesquisa traz implicações para discussão, como diferenças na avaliação dos investidores de informação contida no balanço ou em nota explicativa, diferenças de interesses e orientações sobre os ativos contingentes pelos stakeholders, posições até certo ponto divergentes entre contadores e advogados no tocante ao que seja ‘praticamente certo’ no brasil.
Evidenciação De Passivos Contingentes Durante A Pandemia De Covid-19: Análise do Atendimento ao Ofício Circular CVM/SNC/SEP 02/2020
Authors: Lisboa Amanda Da Silva , Silva Thaís Alves da
Published: March 2023

A pandemia do coronavírus criou um cenário econômico mundial. As medidas de isolamento social com o intuito de frear a disseminação do vírus, e a falta de perspectiva de melhora, trouxeram às organizações um aumento de riscos e incertezas acerca do negócio. Sabendo da dependência de eventos futuros para a concretização dos passivos contingentes, esse artigo, no escopo da Teoria dos Prospectos, teve por objetivo avaliar se, com o início da pandemia em 2020, houve aumento nos montantes de passivos contingentes divulgados, e se houve alteração na qualidade de sua evidenciação. Desse modo, os dados foram coletados a partir das demonstrações financeiras das empresas pertencentes aos setores mais prejudicados pela pandemia, conforme publicado no Diário Oficial da União, e analisados por meio de métodos quantitativos. Os resultados do estudo demonstraram que tanto antes quanto após o início da pandemia as contingências passivas mais representativas entre as empresas estudadas foram as de natureza Tributária, Cível e Trabalhista; e que nenhuma entidade atendeu a todos os requisitos de divulgação do CPC 25. Ainda, os resultados obtidos através das análises estatísticas não identificaram variação significativa na qualidade da divulgação nem no montante divulgado das contingências após o início da pandemia. Estes resultados contrariam a recomendação do Ofício Circular CVM/SNC/SEP 02/2020 que requer aprimoramento da divulgação de passivos contingentes em decorrência da crise sanitária, o que indica possíveis falhas quanto à divulgação de riscos potenciais, e consequentemente interferência no processo decisório dos usuários da informação contábil.
INTERNAÇÕES HOSPITALARES POR NEOPLASIAS MALIGNAS DO SISTEMA RESPIRATÓRIO EM UMA CIDADE COM MINA DE URÂNIO NO INTERIOR DA BAHIA
Authors: De Moura Matheus , Carneiro Pinto Iana , da Silva Figueredo Leandra , Magalhães Araújo Rebeca , Bertani Andrade Victor , Costa Lins Lucas , Lázaro da Silva Guerreiro Marcos , Souza Ferreira Maia Karina
Published: March 2023

INTRODUÇÃO: O câncer de pulmão é um tipo de câncer com alta taxa de letalidade devido à falta de diagnóstico precoce, e, por isso, existe uma preocupação com sua prevenção. Entre seus fatores de risco se destaca o tabagismo e a exposição ao radônio que pode ser formado a partir do decaimento do urânio, representando a principal causa de câncer de pulmão em não fumantes. OBJETIVOS: Comparar a taxa de internações hospitalares por neoplasia maligna do sistema respiratório de janeiro de 2008 até fevereiro de 2020 em Caetité-BA, com a taxa de internações na Bahia e no Sudoeste baiano. METODOLOGIA: Trata-se de um estudo epidemiológico do tipo ecológico, cujos dados foram obtidos da base de dados do DATASUS e a partir de estimativas do Instituto Brasileiro de Geografia e Estatística para o ano de 2019.Os dados foram tabulados calculados no programa Microsoft Excel 2016. RESULTADOS: Observou-se que em Caetité-BA teve uma taxa de internações de 51,01/100 mil habitantes enquanto no sudoeste baiano e na Bahia esse número foi de 47,95 e 56,43 respectivamente. DISCUSSÃO: Notou-se uma menor taxa de internações em Caetité-BA em comparação ao estado da Bahia, porém maior taxa em relação ao Sudoeste baiano. Tais dados contrariam estudos que apontam um maior risco para neoplasias pulmonares em regiões com maior exposição ao radônio, entretanto, alguns fatores podem explicar essa diferença como: possível subnotificação de casos e o desenho do estudo, uma vez que nas pesquisas observadas a comparação foi feita com os níveis de radônio residencial. CONCLUSÃO: Necessita-se de mais estudos para estabelecer uma relação entre a presença de minas de urânio e o número de internações hospitalares por neoplasias malignas do sistema respiratório em Caetité-BA.
O USO DE MÍDIAS SOCIAIS PARA INSERÇÃO E CONSOLIDAÇÃO DA CARREIRA MÉDICA NO MERCADO DE TRABALHO: UM ESTUDO TRANSVERSAL
Authors: Souza Ávila Pessoa Amanda , De Godoy Araújo Ana Carolina , Danzi Friedheim Tenório Arthur , Cavalcante Amorim Anderson Felipe , Barros de Lorena Suélem
Published: March 2023

Introdução: As mídias sociais representam uma nova tecnologia de comunicação cujo uso tem-se mostrado promissor na medicina, mas pode expor profissionais e pacientes a riscos, como violação de confidencialidade e transmissão leviana de informações imprecisas. Em todo caso, tal é a penetração dessa tecnologia nos diversos âmbitos da vida social e profissional que futuros médicos já pressentem a necessidade de utilizá-la para impulsionar a própria carreira. Métodos: Estudo transversal quantitativo-qualitativo. Os dados foram coletados através de questionário online (dividido em perguntas diretas e Likert) com estudantes do último ano de medicina e entrevistas com coordenadores de tecnologia de informação (TI), marketing e laboratório de comunicação da faculdade de medicina. Resultados: Entre os 115 estudantes que aceitaram participar da pesquisa, 94,7% declararam ter redes sociais, especialmente o Instagram (99,1%), passando em média 1-4 horas/dia (81,5%). Nos questionários, 95,6% consideravam que as redes sociais são importantes na medicina e 73% acompanham perfis de médicos. Entre as respostas do questionário Likert, a sentença mais defendida foi: “Já vi médicos veicularem informações imprecisas ou sensacionalistas para atrair seguidores”, obtendo valor de ranking médio de 4,18. Discussão: Os assuntos abordados pelos núcleos de Marketing, TI e comunicação frisaram a importância da ética no uso das redes sociais na carreira médica. Cada núcleo também comentou sobre pontos positivos e negativos das redes sociais, pontuando possíveis estratégias para evitar o mau uso. Conclusão: Os estudantes de medicina usam as redes sociais e acreditam que elas têm um papel importante na saúde. Entretanto, apesar do interesse, não possuem habilidades para desenvolver um perfil social de valor e afirmam já ter visto médicos veicularem informações imprecisas ou sensacionalistas em seus perfis. Fato constatado pelos profissionais de TI, comunicação e marketing, que alegam a necessidade da eticidade e cuidado com as informações passadas.
Post-COVID-19 e-learning acceptance and its impact on community college students in Kelantan, Malaysia: A quantitative analysis
Authors: Rahman Azira Hanani Ab , Yaacob Md Nazrun , Samad Nur Syafiqah A , Mohamad Siti Rohana , Sabri Nur Ain Ayunni
Published: March 2023

The purpose of this study is to explore the relationship between student motivation, student mindset, computer competency, and behavioural intention to continue using e-learning in the post-COVID-19 era among students at the community colleges in Kelantan, Malaysia. This quantitative study used a self-administered online survey questionnaire, and a convenience sampling method was employed to reach the respondents. Partial least square structural equation modelling (SmartPLS) 4.0 was then used for data analysis. The results of the current study reveal that community college students have a high behavioural intention to continue using e-learning in the post-COVID-19 era, and that behavioural intention positively correlates with student motivation and computer competency. However, there is limited evidence to support the relationship between student mindset and their behavioural intention to continue using e-learning in the post-COVID-19 era. Practically, the findings from this study can be an essential landmark to the management of Community Colleges in determining the direction of future learning in community colleges.
Study of Diesel/Methanol Dual Fuel Combustion in CI Engines and Its Practice in China
Authors: Yao Anren , Yao Chunde
Published: March 2023

Article
Study of Diesel/Methanol Dual Fuel Combustion in CI Engines and Its Practice in China

Anren Yao 1, and Chunde Yao 2,*

1 School of Environmental Science and Technology, Tianjin University, Tianjin 300072, China
2 State Key Laboratory of Engines (SKLE), Tianjin University, Tianjin 300072, China
* Correspondence: arcdyao@tju.edu.cn
 
 
Received: 22 October 2022
Accepted: 21 December 2022
Published: 8 February 2023
 

Abstract: In order to release the pressure of energy safety from the dependence on oil supplies from overseas, methanol playing an important role as an alternative fuel in the automotive industry in China. At present time, methanol has been widely used as a fuel additive in spark ignition (SI) engines and industrial utilities in many fields. However, it is rarely applied to compression ignition (CI) engines due to its low cetane number, low vaporization rate as well as low solubility with diesel. Therefore, there is a great challenge in using methanol as fuel in CI engines since those engines are the main power units for most heavy-duty vehicles and construction machines as well as marine power units. Through many years of studies by our group, a strategy of diesel/methanol compound combustion (DMCC) was developed, which made methanol be able to apply to CI engines. The engines with DMCC could use diesel/methanol compound with methanol substitution ratio up to 50% for new engines and 30% for the used ones on applications of heavy duty vehicles, construction machines as well as marine power units. In this paper, the strategies of DMCC and the diesel/methanol dual fuel (DMDF) combustion working in CI engines at high and medium speeds are introduced, and the studies that we had done for DMCC and DMDF are reviewed based on their fundamental researches like ignition and combustion, experimental results on bench and field tests, many application examples such as on heavy duty vehicles, construction machines, and boats as well as locomotives.
Recycled Carbon Fibre Composites in Automotive Manufacturing
Authors: Souppez Jean-Baptiste , Pavar Geethanjali
Published: March 2023

Article
Recycled Carbon Fibre Composites in Automotive Manufacturing

Jean-Baptiste R. G. Souppez 1, * , and Geethanjali S. Pavar 2

1 Department of Mechanical, Biomedical and Design Engineering, School of Engineering and Technology, College of Engineering and Physical Sciences, Aston University, Birmingham B4 7ET, UK.
2 Institute for Energy Systems, School of Engineering, University of Edinburgh, Edinburgh EH9 3JW, UK.
* Correspondence: j.souppez@aston.ac.uk
 
 
Received: 9 January 2023
Accepted: 22 February 2023
Published: 6 March 2023
 

Abstract: The contemporary need for lightweight and sustainable materials in automotive manufacturing has made recycled carbon fibre an attractive option. Yet, aspects such as the mechanical properties of short fibre composites need to be characterised to fully identify the capabilities and opportunities for recycled carbon fibre in the automotive industry. Consequently, this paper aims to ascertain the potential of recycled carbon fibre materials for automotive manufacturing by considering mechanical properties, design implications, and resulting costs and sustainability. Destructive testing is employed to characterise the mechanical properties of virgin carbon fibre (VCF), recycled carbon fibre (RCF) using pyrolysis, and blended recycled carbon fibre (BRCF) comprising 50% polypropylene fibre. Here we quantify (i) the reduction in mechanical properties, namely the tensile modulus and breaking strength, (ii) the resulting increase in required thickness and therefore mass for manufactured parts and (iii) the reduction in cost and embodied energy achieved for RCF and BRCF compared to VCF, based on both a stiffness- and a strength-driven design criterion. Furthermore, we present a decision-making methodology revealing BRCF as the most cost-effective solution, while RCF proves to be the most sustainable alternative. These results provide a novel quantitative assessment of recycled carbon fibre for automotive manufacturing and may contribute to future developments in sustainable composite manufacturing in the automotive industry.
Application of Aluminum Alloy Semi-Solid Processing Technology in Automobile: A Review
Authors: Lu Hongxing , Liu Zhengbai , Zhu Qiang
Published: March 2023

Review
Application of Aluminum Alloy Semi-Solid Processing Technology in Automobile: A Review

Hongxing Lu 1, * , Zhengbai Liu 2, and Qiang Zhu 1

1 Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen 518055, China
2 School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen 518055, China
* Correspondence: luhx@sustech.edu.cn
 
 
Received: 15 January 2023
Accepted: 23 February 2023
Published: 17 March 2023
 

Abstract: Semi-solid processing technology is a new forming technology for aluminum alloy components, which has advantages in producing high-quality components with complex shapes. Several methods of semi-solid metal preparing and forming have been developed in the past 50 years. Some methods have been applied to provide high-quality components or improve castings’ quality in the field of automobile. This paper reviews the development and application of semi-solid processing technology and discusses about its future application prospects.
Evaluation index system and evaluation research of rural tourism talent revitalization in A district
Authors: Wang Ju
Published: March 2023

Talent revitalization is the key link of rural revitalization. The central government allocates special funds for the training of rural revitalization talents every year, among which rural tourism talents provide human resources guarantee for the development of rural tourism, and the performance evaluation of this fund is very important. Taking comprehensive quality, investment, development level and satisfaction as indicators, this paper evaluates the effect of revitalizing rural tourism talents in A district, and puts forward targeted suggestions.
Number Fields
Authors: Keune Frans
Published: March 2023

Number Fields is a textbook for algebraic number theory. It grew out of lecture notes of master courses taught by the author at Radboud University, the Netherlands, over a period of more than four decades. It is self-contained in the sense that it uses only mathematics of a bachelor level, including some Galois theory. Part I of the book contains topics in basic algebraic number theory as they may be presented in a beginning master course on algebraic number theory. It includes the classification of abelian number fields by groups of Dirichlet characters. Class field theory is treated in Part II: the more advanced theory of abelian extensions of number fields in general. Full proofs of its main theorems are given using a ‘classical’ approach to class field theory, which is in a sense a natural continuation of the basic theory as presented in Part I. The classification is formulated in terms of generalized Dirichlet characters. This ‘ideal-theoretic’ version of class field theory dates from the first half of the twentieth century. In this book, it is described in modern mathematical language. Another approach, the ‘idèlic version’, uses topological algebra and group cohomology and originated halfway the last century. The last two chapters provide the connection to this more advanced idèlic version of class field theory. The book focuses on the abstract theory and contains many examples and exercises. For quadratic number fields algorithms are given for their class groups and, in the real case, for the fundamental unit. New concepts are introduced at the moment it makes a real difference to have them available.
Effect of Zakat Potential Management on Achieving SDGs: Case of the Indonesian National Amil Zakat Agency
Authors: SAİD Muhammad
Published: March 2023

This study aims to analyse the influence of zakat potential on sustainable development goals (SDGs), i.e., no poverty, no hunger, and quality education. The study’s findings show that zakat potential influences SDGs even though the correlation is low when it comes to poverty (0.103), no hunger (0.193), and quality education (0.079). Additionally, it is also found that access to quality education through the allocation of BAZNAS scholarship programs for undergraduate, Master, and Doctoral programs and research assistance bring positive changes. Scholarship recipients hold periodic meetings with inspirational figures to disseminate practical experience and encourage BAZNAS Scholarship awardees to become business actors to be independent and help others. Zakat potential empowers teachers' book writing skills through writing awards to increase intellectual potential, academic potential, and thinking productivity. Zakat potential is also distributed for psychosocial visiting children and communities affected by natural disasters. In addition to educating them and raising their self-confidence, it also releases them from prolonged psychological trauma.
Issues of monolingualism: A new expression of Neo-Colonisation? The ideological underpinnings of language education in Australia: The case of New South Wales
Authors: Zhang Lingling
Published: March 2023

In recent decades, the drift toward English monolingualism has been a significant concern in Australian multilingual education. Despite Australia being multicultural and linguistically diverse, extensive research has shown that the nation is still adversely affected by a persistent ‘monolingual mindset’. Potential weaknesses regarding multilingual education have been long addressed but no satisfactory countermeasures have been implemented. A recent challenge to the conceptual underpinnings of the ‘monolingual mindset’ have emerged in the last half-century from the neoliberal marketisation of education. Discouragement of multilingualism and multiculturalism may be related to Australia's ‘liberal status quo’, in which language education has not been provided with adequate structural support from Australia’s liberal government and society. While Australian language educators have made continuous efforts to maintain ethnic minority ‘community languages’ within this context, these efforts will seemingly remain ineffective if a monolingual mentality is permitted to remain at a structural level. Recently, a neoliberal challenge has been levelled to make such structural changes, with the privatisation of education encouraging the learning of minority languages and cultivation of ethnic identities. However, political problems are raised by this response, which risks stressing ethnic conflict and political tensions. This paper investigates the issues around Australia’s liberal ‘monolingual mindset’, the structural causes for its discouragement of language learning and the strengths and weaknesses of its responses. This paper utilises a qualitative approach to analyse documents relevant to current language syllabi in New South Wales. Through critical discourse analysis, thematic categorisation will reveal the values and interests contained in these documents. New South Wales has been chosen as a reference for other Australian states and territories regarding language planning and education due to its rich multicultural and multilingual makeup. This study is intended to motivate further inquiry into what may motivate students to pursue future language studies.
A Study on the PEST-SWOT Analysis on Sustainable Coastal Fishing Village In the post COVID-19 outbreak: Focusingonthesurvey was centered on Daehang fishing village in Busan
Authors:   Korea Society of Public Design, LI SUHUI , Cho Joung hyung
Published: March 2023

As a country surrounded by the sea, Korea is necessary for the development of fisheries, and considering that we enjoy a form of tourism consumption with social value in fishing villages, the decline of fishing village tourism would have a significant impact on our society. Since the post COVID-19 in 2019, all industries have been affected to varying degrees, especially the tourism industry, which is a contact business activity. PEST represents the development environment and SWOT represents the evaluation criteria. Based on the current situation of fishery development, this study uses PEST-SWOT analysis method, Find out the 16 keywords are P-S, P-W, P-O, P-T, E-S, E-W, E-O, E-T, S-S, S-W, S-O, S-T, S-T, T-S, T-W, T-O, T-T, which represent the advantages, disadvantages, opportunities and threats of politics, economy, society and technology, and design the questionnaire model based on them. Put together 24 questionnaire options. According to the survey data, among politics, economy, society and technology, the importance of society(S) is considered the most important by the people, while in the SWOT of social factors, the opportunity to develop social factors(S-O) should be seized under the premise of the advantages of the current situation(S-S). On the other hand, there is a lack of technical factors, which is reflected in the great threat of fishing villages, aging facilities, technical limitations and other problems(T-T) that constantly affect the economic development of fishing villages. To seize the opportunity of fishing villages' development(T-O), the COVID-19 pandemic can be used to update the outdated technology of fishing villages.
A Case Study on the Regeneration of the Industrial Heritage of Steel Stacks Art and Culture Campus for the Revitalization of Urban Space: Focused on Positive Spatial Experience
Authors:   Korea Society of Public Design, Shin Jae-Ryung
Published: March 2023

Modern and contemporary industrial heritage has been used as a policy tool for revitalizing urban spaces by contributing to enhancing the economic added value of the region and improving the image of the city through the regeneration of idle facilities and idle spaces. However, except for advanced cases, many playback spaces have not continued and have been re-idled, turning into urban spaces that local people do not want to reveal. Through previous studies and literature reviews, this researcher derived clues to problem-solving from environmental stimuli that can draw positive responses based on human spatial experiences, and analyzed the case of the Steel Stacks Arts and Culture Campus. The lives and cultures of thousands of local people have been cut off since the Bethlehem Steel Plant, which was established in 1857 and led to the vitality of the 20th century, but the regional development initiatives and residents' environmental, social, and cultural projects since 2000 have been active as a place to welcome more than 1.5 million visitors every year. From the perspective of positive spatial experience, the success factor of the Steel Stacks Arts and Culture Campus is that first, the formal elements of the physical object are newly combined with nostalgia in the past to discover modern creativity and reflect visual factors to view the fused landscape of artificial and natural objects. Second, through changes in functional factors, the value of use conversion was increased by reflecting experiential factors by providing a practical space through basic convenience and environmental safety along with new and abundant experiences. This study aims to note that in order to spread urban space revitalization through the regeneration of idle facilities and idle spaces, including industrial heritage, it should be promoted based on positive space experiences by reflecting human emotional change factors, not target-oriented plans.
Anaesthetic challenges in apert syndrome : A case series.
Authors: Bharali Dr , Baishya Dr , Mallikarjuna Dr
Published: March 2023

Apert syndrome is an autosomal dominant inherited condition characterised by craniosynostosis, syndactyly, mid face hypoplasia, organ malformations, and mental retardation. As it is rarely encountered, so there is little knowledge of the anaesthesia practice in the literature for this syndrome, we present our experience of two cases undergoing bilateral syndactyly release under general anaesthesia.
The introduction to air pollution on pregnancy outcome (APPO) study: a multicenter cohort study
Authors: Hur Young Min , Park Sunwha , Kwon Eunjin , You Young-Ah , Ansari AbuZar , Kim Soo Min , Lee Gain , Park Mi Hye , Lee Kyung A , Kim Soo Jung , Kim Young-Han , Jung Yeon-sung , Cho Geum Joon , Oh Min-Jeong , Na Sung Hun , Lee Se jin , An Tae Gyu , Bae Jin-Gon , Kim Yu-Hwan , Lee Soo-Jeong , Kim Na Kyung , Ha Eun-Hee , Kim Young Ju
Published: March 2023

Objective The air pollution on pregnancy outcome (APPO) study is a prospective hospital-based cohort study designed to investigate the maternal and fetal effects of a particulate matter with an aerodynamic below 10 μm (PM10) and PM2.5 (below 2.5 μm) exposure. This study aims to analyze a relationship between particulate matter and adverse pregnancy outcomes and to find related biomarkers and develop management guidelines.Methods About 1,200 pregnant women are recruited for 3 years (from January 2021 to December 2023) from seven university hospitals to investigate the effects of particulate matter on pregnancy complications and adverse pregnancy outcomes. We collect biological samples by 5 mL of maternal venous blood and 15 mL of urine in each trimester of pregnancy, and 5 mL of umbilical cord blood and 2×2×2 cm of placental tissue are collected after delivery. In addition, by applying PM10 and PM2.5 concentration values and time-activity patterns from the time weighted average model, the individual predicted exposure of air pollution for the pregnant women are obtained.Results The average exposure of PM10 and PM2.5 of the participants in the entire period of pregnancy, was exceeded the World Health Organization air quality guidelines (an annual level, PM10 >15 μg/m3, PM2.5 >5 μg/m3). Moreover, it was revealed that the PM concentration was increasing toward the 3rd trimester of pregnancy.Conclusion The APPO study will be able to identify the degree of exposure to air pollution in pregnant women and use it as basic data for estimating individual exposure to particulate matter. And the results of the APPO study will facilitate in the development of health management for pregnant women against air pollution.
Study of Vocabulary Teaching Model in Senior Middle School from the Perspective of Multi-modal
Authors: Fan Haoyue
Published: March 2023

Vocabulary is crucial to successful English language learning, which enables learners to develop their language skills and promote the comprehensive ability of language. Presently, with the rapid development of modern educational technology, multi-modal language teaching is emphasized and is used worldwide for media-assisted language learning. Multi-modal teaching advocates the proper use of multi-modalities,such as text typesetting, pictures, sound, video,gesture and body language ,etc. So as to stimulate students’ multiple sensory learning reactions. The study aimed to develop, implement multi-modal vocabulary teaching mode, used for enhancing English vocabulary acquisition. And it is expected to help the students understand English vocabulary better, remember vocabulary more efficient and to improve their comprehensive understanding ability of vocabulary.
Annelik Hüznü Ölçeği’nin Türkçe Geçerlilik ve Güvenilirliği
Authors: Özdilek Resmiye , Dinçel Yasemin , Aksoy Sena Dilek
Published: March 2023

Amaç: Bu çalışma, Annelik Hüznü Ölçeği’nin Türkçe geçerlik ve güvenirliğini test etmek amacıyla yapılmıştır.
Yöntem: Araştırma, tanımlayıcı, kesitsel ve metodolojik bir tasarımla 320 anne üzerinde gerçekleştirilmiştir. Veriler Tanıtıcı Bilgi Formu, Annelik Hüznü Ölçeği ve paralel form olarak Postpartum Uyku Kalitesi Ölçeği kullanılarak toplanmıştır. Verilerin analizinde; faktör analizi, Cronbach’s alfa ve madde toplam puan korelasyonları kullanılarak yapılmıştır.
Bulgular: Ölçek Türkçe geçerlilik güvenilirlik analizine göre 28 madde, beş alt boyuttan oluşmuş ve %55’lik bir varyans kaydetmiştir. Ölçeğin Türkçe versiyonunun Cronbach’s alfa katsayısı 0,85’dir. İki yarım test güvenirliği analizine göre birinci ve ikinci yarının Cronbach alfa katsayıları 0,70 ve 0,76, Guttman iki yarı katsayısı 0,88 ve yarılar arasındaki korelasyon katsayısı 0,81 olarak bulunmuştur. Hotelling T2 testi sonucuna göre ise ölçekte tepki yanlılığının olmadığı tespit edilmiştir.
Sonuç: Annelik Hüznü Ölçeği’nin Türkçe versiyonunun postpartum süreçte annelik hüznünü ölçmek için kullanımında geçerli ve güvenilir bir araç olduğu belirlenmiştir.