bluuebunny/crossref_metadata_2025 huggingface dataset:
Clinical mental health interventions with adolescents during the COVID-19 pandemic: A scoping review
Authors: Moreira Costa Icaro , Tabaczinski Carine , Remor Eduardo , Bedin Lívia Maria
Published: April 2024

Introduction/objective: Although social distancing measures affect adults, they have caused greater negative impacts in adolescents, especially for not being able to interact with peers at school. The study aimed to investigate the scientific production regarding psychosocial clinical mental health interventions with adolescents during the COVID-19 pandemic. Method: The search was carried out in the Embase, PsycNET, Pubmed, Scopus, and Scielo databases, covering the period from 2020 to 2023. Sixteen articles that met the pre-established inclusion criteria were analysed. Results: Regarding the psychological risk factors that the interventions sought to reduce, it was found that depression 50% (n = 8) and anxiety 43.7% (n = 7) were the most frequently selected outcomes in the studies. The interventions also sought to improve protective psychological factors (n = 9) such as resilience, coping, quality of life, well-being and emotional intelligence. Conclusions: It was possible to verify that several therapeutic methods can promote the mental health of adolescents in periods of social isolation, the main one according to the evidence, being mindfulness.
¿Es detectable empíricamente la protección normativa del territorio? Análisis de las tendencias de temperatura y vegetación del área norte de Bogotá con sensores remotos
Authors: Inostroza Luis , Lemoine Rodriguez Richard
Published: April 2024

Este trabajo presenta un análisis de las tendencias de desarrollo urbano del sector norte de Bogotá, en un área de 6930 hectáreas que incluye el Plan de Ordenamiento Zonal del Norte (POZN) y parte de la reserva natural Thomas Van der Hammen (RTVH). El plan propuesto por la Alcaldía mediante el Decreto 088 de 2017 intenta dar coherencia a un desarrollo urbano que ha ocurrido de facto y con importantes consecuencias ecológicas y sociales mientras que la RTVH intenta proteger las características ecológicas de este sector entre los cerros y el rio Bogotá. El método consistió en analizar series de tiempo de temperatura de la superficie y de vegetación mediante técnicas de teledetección e indicadores radiométricos para identificar los cambios estructurales que ha experimentado el sector en términos de sus componentes biofísicos. Los resultados del análisis ponen en evidencia que el proceso de urbanización instalado en el sector norte de Bogotá es el determinante de las tendencias del espacio biofísico observadas, más allá de las figuras de protección legal que existen que incluyen el POZN y la RTVH. En el caso de la RTVH, el marco de protección no ha sido efectivo para preservar las características ecológicas que justificaron su creación. La inclusión de evidencia empírica como la mostrada en este trabajo en la planificación del desarrollo urbano es clave para avanzar en la protección activa del medio ambiente, más allá del discurso normativo.
Pérez-Muelas, P. (2023). Homo Viator. El descubrimiento del mundo a través de los viajeros
Authors: Martínez Muñoz María Fernanda
Published: April 2024

Pérez-Muelas, P. (2023). Homo Viator. El descubrimiento del mundo a través de los viajeros. España: Siruela. Biblioteca de ensayo 136. (Serie mayor). 451 pp. ISBN 978-84-19744-43-2
Análise da Formulação da Política Nacional de Biocombustíveis - Renovabio: o Territorial, o Político e o Econômico
Authors: Andrade Virginia Corrêa Santos de , Rodrigues Gelze Serrat de Souza Campos
Published: April 2024

A preocupação com as mudanças climáticas tem ocupado um papel central na atualidade, com a realização de eventos ambientais mundiais para discussão dos efeitos do uso excessivo de combustíveis fósseis e seus impactos negativos ao ambiente. Nessa perspectiva ocorreu a celebração do Acordo de Paris em que o Brasil assumiu metas de reconfiguração de sua matriz energética e, para alcançar o cumprimento de tais metas, foi criada a Política Nacional de Biocombustíveis (RenovaBio), pela Lei nº 13.576/2017. Por ser mais uma política pública voltada para o incentivo do agronegócio, derivada de um forte histórico de dependência do setor sucroenergético de medidas do Estado para se sustentar, é importante refletir para além do conteúdo formal da política pública, observando quais interesses ela busca defender. Além disso, por criar um mecanismo expansor do cultivo da cana-de-açúcar, o RenovaBio traz rebatimentos territoriais e ambientais. Desta forma, o presente artigo objetiva realizar uma análise de política pública, em sua etapa de formulação, verificando o contexto econômico e político que embasou a aprovação e posteriores alterações no RenovaBio. Metodologicamente, a análise ocorreu em três níveis: Superficial; Abrangência territorial; e Estrutural. Verificou-se a formação de uma rede de atores envolvidos no processo, que demonstra a existência de relações de poder, algumas vezes traduzidas por subordinação, dependência de recursos ou de apoio político. Esses atores agiram para a construção do texto da lei que favorecesse à classe, aprovação do projeto de lei em tempo recorde, regulamentação direcionada, flexibilização de requisitos e fixação de altas metas de aquisição de créditos de descarbonização. O RenovaBio é muito promissor, mas ainda há lacunas a serem sanadas e uma série de interferências políticas que prejudica o desenvolvimento, transparência e credibilidade do programa.
Influence of Resin Viscosity on Physical Properties of a Composite Shell Wound on a Low Density Material Mandrel
Authors: Sinha Surjeet kumar , Buragohain Manoj Kumar , Bose P Subhash Chandra
Published: April 2024

This study is made to improve the structural performance of composite shells/ vessels meant for aerospace vehicles. The effect of resin viscosity on the physical properties of carbon/ epoxy composite shell wound on polyurethane (PU) foam-based mandrel is studied and presented in this paper. Cylindrical shells were manufactured through the filament winding process at different resin viscosities. The physical properties of the composite shell are found to be improved significantly with a reduction in resin viscosity. Resin pick-up in impregnated fibers is found to be lower by 4.5 %, whereas mass and thickness of the shells are recorded to be lower by 3 % and 5.4 % respectively at resin viscosity range of 600 -760 mPa.s compared to the viscosity range of 1380 – 2080 mPa.s. Fiber volume fraction and density of composite shell are found to be higher by 6.3 % and 2.8 % at the same resin viscosity range. This trend reverses/stabilizes after further heating and corresponding lowered resin viscosity. Experiment and their result indicate an optimal viscosity range of 600 – 760 mPa.s. for filament winding of efficient carbon/ epoxy composite shell
A Comprehensive Review of Dimensionality Reduction Techniques for Real time Network Intrusion Detection with Applications in Cybersecurity
Authors: Gondhalekar Rohan , Chattamvelli Rajan
Published: April 2024

This paper reviews popular signature and anomaly-based intrusion detection systems (IDS). Dimensionality reduction techniques (DRT) are used to increase the efficiency of such systems for real-time operation. Autoencoder-based IDS is rapidly gaining in popularity, primarily due to its inherent ability to denoise data and reduce dimensionality. In addition to the efficiency, we also look at the classification techniques used by various authors, and the overall impact of a model in terms of performance metrics. This article is written for novices in cybersecurityto get a jumpstart on the latest IDS algorithms. The purpose is to give useful insights into the broad and progressive view of various techniques in wide use, expose high-impact future research areas and to summarize classic IDS methods and feature selection techniques.
Species Identification of Inuit Skin and Fur Clothing: Analyses of DNA, Hair Microscopy, and Macroscopical Identification
Authors: Schmidt Anne L. , Brandt Luise Ø. , Sinding Mikkel-Holger S. , Stenderup Jesper , Viera Filipe G.
Published: April 2024

From approximately 1830 to 1940, through various expeditions to Siberia, Arctic North America, and Greenland, and through donations, the National Museum of Denmark acquired its collection of historical Inuit skin clothing. Unfortunately, original provenance information has been lost for 14% of the garments. In order to document the extensive collection, this study investigates three methods for species identification of animal skin: microscopy of hair, macroscopic identification, and DNA validation. Thus, the present study has two aims: first, to optimise and test hair microscopy for species identification by validating identifications by DNA analyses, and second, to use species identification to estimate the geographic and cultural provenance of Inuit skin clothing.
Based on a dataset of well-documented clothing (for positive controls), this study describes an optimised species identification protocol via hair microscopy using transmitted light microscopy (TLM). We demonstrate that the TLM hair protocol is a reliable and inexpensive alternative to molecular approaches when macroscopic identification is doubtful and DNA validation or protein analyses are impossible. In this study we used photomicrographs to document the identifications of caribou (Rangifer tarandus), musk ox (Ovibos moschatus), species of the true seal family (Phocidae), domestic dog (Canis lupus familiaris), wolf (Canis lupus), Arctic fox (Vulpes lagopus), polar bear (Ursus maritimus), wolverine (Gulo gulo), ground squirrel (Urocitellus parryii richardsonii), ermine (Mustela erminea), and cattle (Bos taurus); these identifications can be used for future reference. We conclude that species identification analyses secure the documentation of garments and allow most objects to be contextualized by culture and geography. The studied garments are accessible at the museum website.
INTERVENÇÕES FARMACÊUTICAS EM UNIDADE NEONATAL: UM ESTUDO DE REVISÃO
Authors: Pedreira Silva Patricia , Freitas de Andrade Kaio Vinícius
Published: April 2024

Objetivo: Revisar a literatura sobre intervenções farmacêuticas (IFs) nas Unidades de Terapia Intensiva Neonatal (UTIN), evidenciando as principais intervenções realizadas, medicamentos envolvidos e aceitabilidade pela equipe multiprofissional. Metodologia: Realizaram-se buscas de estudos sobre IFs nas bases de dados U.S. National Library of Medicine (PubMed®), Literatura Latino-Americana do Caribe em Ciências da Saúde (LILACS®), Scientific Eletronic Library Online (SciELO®) e no portal da Biblioteca Virtual de Saúde (BVS), além de buscas manuais complementares no Google Acadêmico®, entre os meses de janeiro e fevereiro de 2022, sem restrição de período ou local das publicações. Resultados: As IFs mais prevalentes foram: ajuste de dose, orientação farmacêutica e mudança de aprazamento. Os principais medicamentos envolvidos foram os antimicrobianos, predominantemente aminoglicosídeos (gentamicina e amicacina). A principal forma de comunicação do farmacêutico com a equipe foi a presencial, seguida por telefone e forma escrita. A aceitabilidade das IFs pela equipe multiprofissional variou de 59,2% a 95,2%. Conclusão: Estudos sobre IFs em UTIN ainda são escassos. Esta revisão contribui para ampliação do conhecimento sobre a atuação do farmacêutico em Unidades Neonatais.
USO DE ANTI-INFLAMATÓRIOS NÃO ESTEROIDAIS POR ACADÊMICOS DE UMA UNIVERSIDADE EM ANANINDEUA, PARÁ, BRASIL
Authors: Araújo Júnior José Raul Rocha de , Silva Juliana Correa da , Oliveira Monique Raissa Silva , Oliveira Solange Socorro de Souza
Published: April 2024

Este estudo objetivou investigar o uso de anti-inflamatórios não esteroidais (AINE) entre acadêmicos de uma universidade em Ananindeua, Pará, Brasil. Para alcançar esse objetivo, foi realizada uma pesquisa descritiva-observacional de abordagem quantitativa, com aplicação de formulário. A amostra de estudo foi composta por 101 estudantes devidamente matriculados em cursos oferecidos pela universidade, de todos os gêneros, com idade a partir de 18 anos, que usam ou já tenham usado algum anti-inflamatório não esteroidal. Foi adotado como instrumento de coleta de dados um formulário semiestruturado, composto por 14 questões. Os dados coletados foram transferidos e organizados em planilhas do software Excel, para análise descritiva dos resultados obtidos. Para avaliar a existência de reações adversas foi usado o algoritmo de Naranjo e colaboradores (1981). Os resultados apresentaram que 55% e 27% dos universitários costumam usar AINE para tratar dor de garganta e dor muscular, sendo o Nimesulida mais consumido sem receita médica. Além disso, descobriu-se que a automedicação é mais recorrente entre alunas (77%), da área de biológicas (67%) e com idade entre 18 e 29 anos (57%). Por fim, o uso indevido de AINE entre os estudantes avaliados é evidente e esses resultados podem ser usados como alicerce para medidas de conscientização sobre os riscos da automedicação, em particular com anti-inflamatórios.
Escritura Colaborativa Digital en los Semilleros de Investigación para la Formación en Literacidades
Authors: Abad Olaya José Vicente , Uribe Zapata Alejandro
Published: April 2024

Con esta propuesta pedagógica, que surge en el marco de la formación en investigación, se pretende articular la escritura colaborativa digital entre maestros formadores y en formación [MF&Mf]. El texto consta de cuatro partes. Tomando la formación en investigación para los maestros como telón de fondo, se empieza por esbozar las literacidades académicas y digitales, que sirven como andamiaje teórico para la propuesta. En la segunda parte se exploran sus categorías centrales: los semilleros de investigación, la escritura colaborativa y la escritura digital. Luego se describe la propuesta de escritura colaborativa entre MF&Mf en virtud de aspectos metodológicos que han servido para implementarla y que pueden orientar su posterior evolución, particularmente en relación con lógicas multimodales. Se concluye que la escritura colaborativa en tanto estrategia pedagógica es un ejercicio poco investigado que puede contribuir a la formación de nuevos investigadores desde un enfoque en literacidades académicas y digitales.
Proposta de implementação do PCP com foco no sistema MRP em uma empresa de fabricação textil
Authors: Morete Gabriella Perim , Souza Kathrein Stefane dos Santos , Castro Letícia Gomes , Cardoso Wagner
Published: April 2024

Este estudo aborda a otimização operacional em uma empresa de uniformes profissionais por meio da implementação do Sistema de Planejamento de Necessidades de Materiais (MRP) e outras melhorias estruturais. Os objetivos centram-se na resolução de desafios operacionais decorrentes do crescimento significativo da empresa, como gargalos na produção e gestão inadequada do estoque. A metodologia é um estudo de caso exploratório que adota métodos quali-quantitativos, incluiu a análise da situação atual da empresa, a proposta de implementação do MRP e outras medidas, como descentralização do lançamento de fases no sistema e reorganização do estoque. Os resultados preliminares indicam uma sinergia eficaz entre as mudanças implementadas, promovendo eficiência operacional, responsabilidade individual em cada fase do processo e preparação para enfrentar desafios logísticos associados ao aumento da demanda. Essas melhorias, quando integradas, proporcionam uma base sólida para futuros desenvolvimentos, como a incorporação de tecnologias avançadas, sustentabilidade operacional e estratégias de expansão de mercado.
 
Palavras-chave: Otimização operacional, MRP, Eficiência, Sustentabilidade, Expansão de mercado.
The Association Between Exclusive Breastfeeding and the Occurrence of Stunting Among Children Aged 12-60 Months in Community Health Centers in Yogyakarta City
Authors: Asqy Dendy Eureka Raihan , Putri Rachma Greta Perdana , Yuniasih Dewi , Kurniawan Nurcholid Umam
Published: April 2024

Background: Stunting is a condition of chronic malnutrition caused by suboptimal nutritional intake due to prolonged inadequate food consumption. Stunting, also known as being short, indicates a growth failure that occurs both before and after birth. The categorization of stunting based on the World Health Organization's (WHO) standard growth reference is a deficit in length or height for age with a Z-score < -2. Symptoms of stunting usually appear after the golden period of growth (2 years old). One of the contributing factors to stunting in toddlers is an imbalanced food intake. Exclusive breastfeeding is a critical component of nutritional intake to support a child's good nutritional status. It may contribute to the prevalence of stunting.Methods: This is a quantitative study with a cross-sectional research design. The data collection consists of secondary data from stunting medical record records. The inclusion criteria of the study are children aged 12-60 months with complete data of anthropometric. Exclusion criteria are endocrine disorder, skeletal abnormalities, dysmorphic disorder, chronic disease, history of familial short stature, and constitutional delay of growth and puberty. Analysis of the data using Chi-square.Results: There is a relationship between exclusive breastfeeding and the occurrence of stunting in children aged 12-60 months at the Community Health Centre in Yogyakarta City with a p-value of 0.00 (p < 0.05).Conclusion: There is a correlation between exclusive breastfeeding and the occurrence of stunting among children aged 12-60 months in primary healthcare care in Yogyakarta City.
Comparison of Hatha Yoga and Elderly Exercise in Functional Balance of the Elderly
Authors: Adipratama Inge Kurniawati , Indriastuti Lanny , Julianti Hari Peni
Published: April 2024

Background: Physical changes with age affect functional balance. Hatha Yoga, a common balance exercise for the elderly, is not widely known among them, despite its numerous benefits. This study aims to compare Hatha Yoga and elderly exercise to improve functional balance in the elderly.Methods: The study was a randomized controlled trial with 26 participants divided into two groups: the Hatha Yoga group (n=13) and the elderly exercise group (n=13). Both groups engaged in three-week exercises for six weeks, with balance measured before and after the intervention using the BBS.Results: There was an increase in BBS scores before and after treatment in the elderly exercise group (p<0.001) and in the Hatha Yoga group (p=0.001). The BBS value of the Hatha Yoga group (42.00 ± 0.58) was higher than that of the elderly exercise group (41.92 ± 0.86) at the start of the study, but the difference was not significant (p = 0.953). At the end of the study, the BBS score in the Hatha Yoga group (55.08 ± 0.86) was higher than that of the elderly exercise (50.54 ± 1.76) and the difference was significant (p <0.001). The difference in the score of Hatha Yoga (13.08 ± 0.76) compared to elderly exercise (8.62 ± 1.61) results in a significant p <0.001.Conclusion: Hatha Yoga improves better balance than elderly exercises to improve the functional balance of eldersKeywords: Berg Balance Scale, eldery, functional balance, Hatha Yoga, senam lansia
Praktik Penanggulangan Bencana: Studi Kasus Penanggulangan Bencana Covid-19 di Kota Salatiga
Authors: Pratiwi Santy Widi
Published: April 2024

Penelitian ini dimaksudkan untuk menganalisis praktik sosial dalam penangggulangan bencana Covid-19 di Kota Salatiga, serta untuk merumuskan alternatif kebijakan penanggulangan bencana. Penelitian ini menggunakan konsep bencana dan manajemen bencana dari penelitian-penelitian sebelumnya; serta memakai pemikiran Pierre Bourdieu tentang teori praktik sebagai pisau analisisnya. Penelitian ini menggunakan pendekatan kualitatif dengan studi kasus penanggulangan bencana Covid-19 di Kota Salatiga. Data-data yang diperlukan dalam penelitian ini dikumpulkan melalui observasi, wawancara, dan studi kepustakaan. Temuan penting penelitian ini adalah diidentifikasinya habitus sosial dan modal sosial warga masyarakat dan Pemerintah Kota Salatiga yang cenderung melahirkan praktik-praktik sosial yang paradoksal. Di satu sisi, habitus sosial dan modal sosial diperlukan untuk menciptakan praktik-praktik sosial yang positif dalam merespon kejadian bencana; tetapi, di sisi lain, justru melahirkan praktik-praktik sosial yang bertolak belakang dengan upaya pengendalian penyebaran virus Covid-19. Mereka cenderung bersikap abai terhadap kebijakan PPKM dan protokol kesehatan Covid-19. Karena itu, penguatan literasi kebencanaan, pengembangan habitus siaga bencana, serta perbaikan sistem penanggulangan bencana menjadi urgent untuk segera dilakukan.
Implementasi Kebijakan Pemerintah Atas Perkawinan Dini Terhadap Pendidikan Anak Suku Laut di Kabupaten Lingga: Antara Solusi dan Tradisi
Authors: Elonika Yesica , Pebrianti Ayu , Marbun Rotua
Published: April 2024

Salah satu aspek penting dalam pemenuhan kebutuhan SDM guna menunjang pemenuhan kualitas penduduk di suatu negara yaitu, pendidikan. Penelitian ini bertujuan untuk menemukan jawaban mengenai kebijakan pemerintah atas perkawinan dini terhadap pendidikan anak suku laut di Kabupaten Lingga. Dengan menggunakan metode penelitian kualitatif, berjenis deskriptif, serta melalui cara studi pustaka dan tinjauan literatur. Dua unsur yang mendasari pengimplementasian kebijakan, yakni kebijakan dan pelaksana (implementer). Pemerintah sudah membuat kebijakan tentang batas usia untuk menikah dan kebijakan tentang batas usia belajar guna menekan pernikahan dini dan meningkatkan mutu pendidikan. Selain itu, pemerintah daerah Kabupaten Lingga membuat kebijakan terkait melindungi hak anak (FORAGA) serta PKBM dan BOSDA (beasiswa bagi anak suku laut yang kurang mampu). Oleh karena itu, didapatkan bahwa kebijakan telah dibuat dan terdapat beberapa orang pelaksana di dalamnya, akan tetapi partisipasi masyarakat kurang dalam menyukseskan kebijakan yang sudah ada akibat dari kebudayaan pernikahan dini yang sudah begitu kental. Dengan demikian, kebijakan tersebut belum dikatakan terimplementasi dengan baik. Perlu dukungan dari kedua belah pihak, yakni pemerintah dan masyarakat dalam mengimplementasikan kebijakan atas pernikahan dini terhadap pendidikan anak suku laut di Pulau Kelumu.
Evropská unie v učebnicích občanského vzdělávání: limity, inovace a výzvy
Authors: Prokschová Daniela
Published: April 2024

This article deals with one of the important but neglected aspects of civic education, namely the portrayal of the European Union in textbooks. It aims to comprehensively describe the content and form of the chapter on the European Union in 22 didactic materials (textbooks, workbooks, and teacher’s guides) for civic education and national history in Czech primary and lower secondary schools. The text answers the following questions: 1) How much space is devoted to the European Union? 2) In what context is the European Union mentioned? What actors and themes are emphasized? Do textbooks evaluate the EU and its relevance for the target groups? 3) What didactic approaches and tasks do the textbooks suggest for pupils in teaching about the EU, and how is the material presented visually? Quantitative and qualitative content analysis will be used to answer the research questions. This study has shown that the EU is approached from the pupil’s perspective and is portrayed mainly positively. Over the years, us vs. them framing has evolved, and the textbooks present the Czech Republic as an active part of the European Union. The tasks for pupils in the texts are heterogeneous and do not lead pupils to work critically with sources of information. The article also aims to offer recommendations for textbook authors and teachers. The outcomes of this study are put in an international context.
Assessing the infestation-induced response on the plant host by the Indian lac insect
Authors: Shyam Praveen , Mansoori Adil , Raikwar Atul , Kaushik Sandeep , Shweta S , Kumar Anirudh , Lakhanpaul Suman
Published: April 2024

Lac, the only natural resin of animal origin is produced by the Indian lac insect- Kerria lacca. It is the by-product of the complex natural interaction between the lac insect and its host plant. Despite several studies on the perspectives of the chemistry of lac and its production, very little work has been carried out to understand the biology of lac and its associated plant taxa. The present work has been designed to understand the preliminary response if any, of the host plant against lac insect infestation. Structural studies and metabolic profiling such as the determination of total phenolics, flavonoids, antioxidants, FTIR, and GC-MS were carried out. The anatomical investigations revealed coagulation/deposition of metabolites in the infested sites. The infested bark showed higher phenolic, flavonoid content, and antioxidant activity in comparison to non-infested bark which was corroborated by Fourier-transform infrared spectroscopy (FTIR) and GC-MS biochemical analysis. This preliminary study will shed some light on understanding the lac plant host's physiological response and the putative mechanism used by the lac insect in overcoming the plant response.
A study to investigate the anticancer potential of carvacrol via targeting Notch signaling in breast cancer
Authors: Pandey Pratibha , Ramniwas Seema , Verma Meenakshi , Sharma Nishesh , Upadhye Vijay Jagdish , Khan Fahad , Shah Mohd Asif
Published: April 2024

Breast cancer (BC) continues to be a primary worldwide health concern despite the tremendous efforts made to deploy novel chemotherapeutic techniques for the treatment of BC. It is, therefore, essential to elucidate better plant-based compounds targeting deregulated signaling components in various cancer cell types. Our objective was to elucidate a potent targeted therapeutic approach by exploiting the anticancerous potential of carvacrol in MDA-MB-231 cells via employing silicon and in vitro approaches. In silico analysis was executed to identify the anticancer potential of carvacrol against BC via targeting crucial signaling component of the NOTCH pathway, namely Jagged-1 and its downstream target cyclin D1. In vitro, assays were also employed to display the antiproliferative potential of carvacrol at the mRNA level in MDA-MB-231 cells via targeting Jagged-1 and cyclin D1 genes. Docking studies using CB DOCK displayed better binding energy of carvacrol (Jagged-1: −5.0 and cyclin D1: −5.8) in comparison to the standard drug, 5-fluorouracil (Jagged-1: −4.5; cyclin D1: −4.6) against these crucial targets. Carvacrol potentially downregulated the expression of these crucial genes along with caspase-mediated apoptosis induction. However, more in vitro assays must be employed to validate its candidature for drug development against BC. This study provided a novel insight into the targeted therapeutic approach using natural products and deregulated signaling components for managing breast carcinoma.
漳州方言多功能词 “共” “合” 的历时分布与演变
Authors: Xu Yuhang , Hong Qiuping
Published: April 2024

提要

本文考察新近整理、刊行的三本17世纪 “西班牙语-闽南语” 文献, 辅以19世纪罗马字语料和21世纪共时调查结果, 以相互间隔两百年的三个连续时间段描写、比较多功能词 “共” “合” 在漳州方言的用法, 从历时角度探讨其语法功能叠置特征和竞争演变状态。研究表明, 类同于音韵层次叠置现象, 漳州方言多功能词 “共” “合” 因功能叠置而在历时上发生竞争, 从功能叠置走向功能互补, 演变特点差异显著。 “共” “合” 在漳州方言中的分布与演变可为两者在其他地区闽南方言中的关系提供参考, 亦为历史层次分析理论作用于语法领域提供实例论证。
“A devout and holy sermon”: sources of parody in sermons joyeux
Authors: Akhapkina Daria N.
Published: April 2024

The sermon joyeux is a polemical and frivolous genre of late medieval French literature that parodies religious sermons. These humorous writings in verse transcended the canons of propriety and soon gained popularity across Europe, surviving even after the Middle Ages. This article, concentrating on the sermons joyeux that represent the lives of false saints, analyses three main sources of parody for this subgroup of the genre: the comic tradition of ecclesiastical parody in general, liturgical parody, and hagiographical parody. The study outlines a general landscape of the comic tradition in which sermons joyeux were created, highlighting some probable precursors to the genre with the goal of describing the characteristic features of these parodies. The analysis of the examples from the sermons joyeux themselves illuminates the reasons for the mock sermons’ popularity among and beyond clerical audiences and demonstrates how these texts may be perceived as significant of the importance, recognition and interest towards religious life rather than criticism or utilitarian didacticism.
A bibliometric study of research trends in cross-border cybercrime
Authors: Zhao Yilin , Cheng Le
Published: April 2024

As digital technology prevails in crimes, academic insights have expanded to diverse issues related to cybercrimes both in China and abroad. Various jurisdictions have made efforts to get cybercrime under control, in particular, fighting against the misuse of emerging technologies in cybercrimes. In the context of cross-border cybercrime, putting one region’s criminal growth down could not live without cross-border or cross-sector cooperation. With such understanding, this paper aims to conduct a comparative study of cross-border cybercrime publications to see the research trends from the divergence and convergence of academic studies inside and outside China. Specifically, using CiteSpace (6.2.R6), this study presents an extensive bibliometric analysis of cross-border cybercrime research published during the past three decades in Web of Science Core Collections and China National Knowledge Infrastructure (CNKI). The findings indicate the typical features of publications in different phases. Among others, the keywords analysis including cluster mapping and strongest burst reveals the research trend, which indicates that cross-border cybercrime is featured as possessing a complete industrial chain of online black market, with increasing application of high-tech tools and more connection with illicit financial flow. This study also examines barriers and touches upon the implications in the efficient fight against cross-border cybercrime, as well as the existing approaches like public-private partnership, mutual legal assistance and police cooperation, and global pathways to reducing conflicts among jurisdictions.
Study of optical, structural and radiation shielding properties of (55 − x)TeO2–20ZnO–25B2O3–xEr2O3 glass matrix
Authors: Yadav Basant Kumar , Singh Virendra , Gangwar Rajat , Bisht Neeraj
Published: April 2024

Erbium doped zinc boro-tellurite (EZBT) glass samples with molar composition of (55 − x)TeO2–20ZnO–25B2O3–xEr2O3 (x = 0.0, 0.5, 1.0, 1.5 and 2.0 mol.%) were prepared by a conventional melt quenching technique. The prepared samples were characterised using X-ray diffraction, Fourier transform infrared spectroscopy and ultraviolet–visible spectroscopy techniques to investigate the structural, optical and dielectric properties. To study the radiation shielding capabilities, the parameters such as mass attenuation coefficient (μ
m), half-value layer (HVL), effective atomic number (Z
eff) etc., were evaluated using WinXCom software. Judd–Ofelt analysis was carried out to determine the intensity of electronic transitions and other radiative transition parameters within the 4f shell of erbium ions. The μ
m values in a range of (108.5–0.03) cm2 g−1 for energy range (0.01–10) MeV were obtained for 2.0 mol.% erbium-doped tellurite glass matrix. The μ
m and HVL values were also compared with conventionally used ordinary concrete and specific lead borate glass at certain energies. The detailed investigation of this current EZBT glass matrix is very useful in the specific optical and radiation shielding applications of this EZBT glass.
Teaching English in an engineering international branch campus: a collaborative autoethnography of our emotion labor
Authors: Hillman Sara , Elsheikh Aymen , Abbas Naqaa , Scott Bryant
Published: April 2024

While a number of studies have documented the significant role of emotions and the emotion labor produced in English language teaching, research exploring English instructors’ emotion labor in transnational higher education contexts such as international branch campuses (IBCs) and within Science, Technology, Engineering, and Math (STEM) programs is lacking. Arguably, these neoliberally-driven and educational neocolonialist endeavors can produce intense emotion labor for English instructors. This study employs a collaborative autoethnography (CAE) methodology to investigate what provoked emotion labor for expatriate instructors, who teach English courses to Qatari national students at an IBC in Qatar. Taking a poststructural approach to emotion labor as our theoretical framing, we collaboratively examined our emotion labor in audio-recorded weekly meetings and then engaged in further dialogues and writings about our emotion labor. We reflect on two themes that produced emotion labor as well as emotional capital for us: 1) navigating our purpose teaching English to engineering majors and 2) confronting our roles as English instructors within a context of educational neocolonialism. Our study adds to the knowledge base of English teachers’ emotion labor in transnational and STEM spaces, while also showcasing CAE as a transformative methodology to explore language teachers’ emotion labor.
Synthesis and crystal structure of 5-fluoro-1-methyl-2-oxo-3-(2-oxochroman-4-yl)indolin-3-yl acetate, C20H16FNO5
Authors: Feng Xiao-Li , Lei Chuan-Wen , Zhou Ying , Zhang Yan-Li , Mao Xiang-Jun
Published: April 2024

C20H16FNO5, monoclinic, P21/c (no. 14), a = 9.5235(2) Å, b = 22.1323(2) Å, c = 8.95249(19) Å, β = 101.445(3)°, V = 1779.66(7) Å3, Z = 4, R

gt
(F) = 0.0410, wR

ref
(F
2) = 0.1194, T = 279.5 K.
Polydopamine films: Versatile but interface-dependent coatings
Authors: Ball Vincent
Published: April 2024

Polydopamine coatings have been shown to allow to coat almost all materials with conformal films having a tunable thickness from a few up to more than 100 nm (and even more in some specific cases). These films are able to reduce metal cations, to be modified with many chemical moieties and advent hence as a “Holy Grail” in surface chemistry with an impressive amount of applicative papers published since 2007. However, the broad application field and ease of deposition from aqueous solutions hidden the complexity of the deposition mechanism(s). The discovery that polydopamine (PDA) films also form at air/water interfaces (in the absence of stirring or in stirring dependent manner) to yield membranes with physicochemical properties different than PDA films deposited at solid/water interfaces highlighted for the first time that the nature of the interfaces plays a major role in the PDA film growth mechanism and in the film properties. More recent research allowed to show that the surface chemistry of the used solid substrate modifies the composition of the thin deposited PDA film during the early stages of the deposition process with further deposition yielding to an almost substrate-independent PDA film. It is the aim of this review to describe complex surface effects occurring in PDA deposition and hence to complement other reviews which described the complexity of the chemistry yielding to PDA coatings.
Preserving the Past, Enabling the Future: Assessing the European Policy on Access to Archives in the Digital Age
Authors: Friedewald Michael , Székely Iván , Karaboga Murat
Published: April 2024

In this study we investigate the implementation and challenges of accessing archives in the digital age. Through an online survey and expert interviews, data were collected from archival institutions, professional users, and civil society organizations in all Council of Europe member states. The findings reveal that digitization has had a positive impact on document accessibility, providing convenience, reducing workload, and improving user access. However, only a small portion of archival holdings have been digitized, highlighting the need for further efforts in this area. Data protection and copyright present significant obstacles, with the European General Data Protection Regulation leading to access restrictions and legal uncertainties. Preservation, interoperability, and organization of records pose challenges in the digital realm, and while artificial intelligence shows promise in automating metadata creation and identifying sensitive materials, concerns about algorithmic biases and the need for additional checks are highlighted. To enhance accessibility, user-friendly interfaces, cooperation among memory preserving institution, and outreach to new user groups are crucial, which can ensure the effective preservation and accessibility of digital collections in the digital age. We provide insights for policy-making and archival institutions in navigating the evolving landscape of accessibility.
The grammaticalization of noun affixes: a cross-linguistic study
Authors: Zingler Tim
Published: April 2024

This paper investigates a type of empty morph that attaches to noun forms and that will be called “noun affix” here. Based on six case studies from unrelated African and American genera, I arrive at a diachronic typology of noun affixes that in many ways confirms and in other ways expands on the findings of Joseph Greenberg, whose work on the topic remains the yardstick. One claim is that noun affixes may emerge directly from gender markers and that this is reflected in the paradigm size of noun affixes. Furthermore, there is evidence for the idea that old noun affixes may be repurposed for the creation of phonologically minimal word forms. The main interest of this study is in what the development of noun affixes reveals about processes of grammaticalization. The current literature mostly focuses on the fact that grammaticalization is initiated by semantic changes (mostly semantic reduction) rather than by formal changes. This raises the question of whether semantic reduction is also completed before formal reduction. The noun affixes provide compelling evidence for this idea and thus suggest that empty morphs may arise via grammaticalization. This runs counter to approaches on which form and function erode in parallel.
Characterization and Performance Verification of a Novel Aero-Engine Bearing Steel
Authors: Kerrigan Aidan , Coudert Jean-Baptiste , Mondelin Alexandre , Maheo Yves
Published: April 2024

A novel steel called Arctic 15 has been developed to achieve the increased speed and load demands for hybrid bearings of very high bypass ratio (VHBR) aero-engines. The characteristics of Arctic 15 have been determined, including the structural fatigue resistance and the corrosion resistance. The rolling contact fatigue performance of carburized Arctic 15 has been determined in endurance life tests on angular contact ball bearings. The microstructure response of Arctic 15 to rolling contact fatigue has been characterized using light optical microscopy and x-ray diffraction. This paper describes the test results in detail and gives an outline regarding the future development of the Arctic 15 concept.
A Fracture Mechanics Method for an Advanced Evaluation of Inclusions and the Prediction of Fatigue Life of Rolling Element Bearings
Authors: Binderszewsky Joerg , Kruhoeffer Wolfram , Wunder Kirsten , Marneth Bernd , Blass Toni , Correns Martin
Published: April 2024

The quantity and appearance of nonmetallic inclusions (NMIs) in terms of composition, size, and shape are strongly influenced by the process of steelmaking. Nonmetallic inclusions can have a major impact on the fatigue performance of rolling bearings. Although limited to rare cases, macroscopic inclusions may lead to unexpected premature failures. Microscopic inclusions have been recently discussed as a potential influence factor in the context of white etching cracks (WECs). Up to now, the potential effect of microscopic inclusions on fatigue life has been mostly investigated experimentally. Another option is to assess NMIs analytically by using linear elastic fracture mechanics under the assumption that NMIs can be analyzed as small cracks. The method presented here is based on orthogonal shear stress distribution and considers short crack behavior as well as the size, shape, and orientation of NMIs to determine a characteristic shear stress fatigue limit for rolling bearing steels. The calculated fatigue life, based on this approach, shows a very good correlation with life test results for different bearing sizes, for both macroscopic and microscopic inclusions. Furthermore, the results show that the standardized fatigue life calculation according to ISO 281 and ISO/TS 16281 offers a conservative approach for fatigue life prediction. Thus, the newly developed model offers the possibility of deriving material load rating factors from the microscopic rating of NMIs. Regarding WECs, the results suggest that NMIs are not the root cause of premature WEC failures. Typically, other factors, such as generation of hydrogen or electric current, are necessary conditions for the development of WECs. It is plausible that the detrimental effect of diffusible hydrogen can reduce the shear stress fatigue limit.
Development of the Cost-Efficient Steel 18MnCrMoV4-8-7 for Case-Hardening or Carbonitriding of Mid-Sized Roller Bearings
Authors: Moeller Johannes , van Soest Frank , Trojahn Werner , Werner Michael , Dinkel Markus , Krull Hans-Guenter
Published: April 2024

The state-of-the-art case-hardening steels for bearings with intermediate wall thickness up to approximately 100 mm are SAE 3311 (≈ 12NiCr14-6) and 18NiCrMo14-6. However, they have several detrimental features. The financial and environmental costs of the raw material (mainly attributed to the nickel [Ni] content of approximately 3.5 wt%) and for the carburizing treatment for the SAE 3311 are very high, and the performance potential often suffers from an unsatisfactory microscopic degree of cleanliness. To replace them, a steel was developed with the following target properties: a comparable or better hardenability curve than SAE 3311; a Ni content significantly below 1 wt% to reduce cost and greenhouse-gas emissions; a hardness higher than 61 HRC after carbonitriding, hardening, and regular tempering for larger samples; and a significantly reduced alloying surcharge compared to SAE 3311. Our development approach included a virtual alloy design phase using thermodynamic calculations in combination with time-temperature-transformation simulations, casting of two different candidate alloys for experimental investigation, in-depth characterization of the casted alloys after various heat treatments, assessment of (rotating-bending) fatigue behavior, and bearing-lifetime testing. The newly developed steel 18MnCrMoV4-8-7, which is essentially a low-carbon (i.e., case-hardening) variant of the established through-hardenable bearing steel 100CrMnMoSi8-4-6, has a significantly lower Ni content than SAE 3311 and is therefore not only less expensive but also more environmentally friendly while offering a similar hardenability. 18MnCrMoV4-8-7 transforms into bainite over a wide range of cooling rates and consequently exhibits a good predictability of dimensional or distortion behavior. 18MnCrMoV4-8-7 shows similar or better rotating-bending and rolling-contact fatigue behavior than both 100Cr6 and SAE 3311. The first bearings with rings made from 18MnCrMoV4-8-7 have been successfully brought into application.
Precessional Slip and Microinclusion Effect on Fatigue Life of Bearing Rolling Element: An Integrated Life Estimation Model through Experimental and Analytical Investigation
Authors: Sesana Raffaella , Pessolano Filos Irene , Rizzo Sebastiano , Uva Andrea
Published: April 2024

This study presents an integrated mathematical model to predict the fatigue life of a bearing rolling element under the influence of both the microinclusion effect and the precessional slip. The relationship between microinclusion effect and precessional slip was modeled and validated for bearing balls undergoing Hertzian contact fatigue when working in a bearing. For the rolling element, a statistical approach was necessary due to the presence of slip and precession. To statistically determine how often the inclusion was loaded, ball spin frequency was estimated. Studying the ball motions in terms of spin, precession, and transverse slip at the ball-race contact provided an estimate of the frequency at which the inclusion contacted the race during one complete shaft cycle. The life model was completed to account for race and conformity defects, slip, precession, and the presence of microinclusions. The life predictions were compared with the experimental number of cycles to failure of bearing balls. Material characterization was run to calibrate the model. To validate the model, many bearing balls were subjected to fatigue testing by means of a test rig. After failure analysis, optical and scanning electron microscopy (SEM) inspection of the fractured surface, x-ray spectroscopy, and destructive testing analysis were performed to obtain the dimensions, position, and mechanical properties of the microinclusions.
Fatigue Performance of Bearing Rollers Manufactured by Laser Powder Bed Fusion
Authors: Sotelo Luz D. , Fuller Allen J. , Pratt Cody S. , Madireddy Guru , Karunakaran Rakeshkumar , Sealy Michael P. , Liebe Timothy M. , Turner Joseph A.
Published: April 2024

Metal additive manufacturing (AM) promises functional flexibility in the production of engineering components, and great progress has been made with respect to part geometry and overall performance criteria. The fracture and fatigue behaviors of metals depend on the sample microstructure, an aspect of metal AM for which many challenges remain. Here, we report on progress with respect to the rolling contact fatigue (RCF) performance of metal AM bearing rollers. A set of rollers was created using laser powder bed fusion from 8620HC steel powder. The print parameters were first studied with respect to laser power, laser scan speed, laser spot size, and layer thickness. A set of tapered cylindrical rollers was then manufactured using build parameters that were selected based on material density, optical microscopy, ultrasound, and residual stress measurements. The rollers were then heat-treated while still on the build plate to relieve any residual stresses. The rollers were removed from the build plate, machined to the typical product geometry, case-hardened, carburized, and ground to a final surface finish. Finally, the rollers were integrated within railroad tapered roller bearings and tested in two ways. The accelerated life test subjected the rollers to high-stress RCF that generated significant spalling on both types of rollers. The simulated service life test was designed with RCF at levels typical of in-service bearings. At the conclusion of this test, equivalent to 250,000 miles, the performance of the AM rollers was judged to be in line with rollers manufactured using traditional methods, and visual inspections showed no surface damage to any rollers. The results of this study provide a clear foundation for additional AM roller designs that can exploit the unique capabilities of the AM process.