bluuebunny/crossref_metadata_2025_split huggingface dataset:
Succession in the Caecal Microbiota of Developing Broilers Colonised by Extended-spectrum β-lactamase-producing Escherichia Coli
Authors: Cardenas-Rey Ingrid , Gonzalez Teresita Bello , Goot Jeanet Van der , Ceccarelli Daniela , Bouwhuis Gerwin , Schillemans Danielle , Jurburg Stephanie , Veldman Kees , De Visser Arjan , Brouwer Michael 
Published: September 2021

Abstract
BackgroundBroilers are among the most common and dense poultry production systems, where antimicrobials have been used extensively to promote animal health and performance. The continuous usage of antimicrobials has selected for resistant bacteria, such as e Extended-spectrum β-lactamase-producing Escherichia coli (ESBL-Ec) . Here, we studied the ESBL-Ec prevalence and successional dynamics of the caecal microbiome of developing broilers in a commercial flock during their production life. Broilers were discriminated as ESBL-Ec colonised or not by selective culturing. Using 16S rRNA gene sequencing, we compared the richness, evenness and composition of the cecal microbiota of both broiler groups and assessed the combined role of age and ESBL status on the microbiota. ResultsWe observed a linear trend in the proportions of ESBL-Ec throughout the broilers' production round, X 2 (1, N = 12) = 28.4, p < .001. Over time, microbial richness was consistently higher in ESBL-Ec free broilers, but significant differences between both groups were found exclusively on day three (Wilcoxon rank-sum test, p = .016). Bray-Curtis distance-based RDA (BC- dbRDA) showed no explanatory power of ESBL status, while age explained 14% of the compositional variation of the caecal microbiome, F (2, 66) = 6.47, p = .001. ConclusionsThis study assessed the role of ESBL-producing E.coli in the successional dynamics of the cecal microbiome in developing broilers and shows that the presence of ESBL-producing E.coli is associated with mild but consistent reductions in alpha diversity and transient compositional differences. We also reported the clonal spread of ESBL and point to the farm environment as a likely source for ESBLs.
Negative Effects of Acute Appendicitis in Children During COVID-19 Pandemic: Analysis of 1,274 Cases.
Authors: Delgado-Miguel Carlos , Urbán Julia Garcia , Ferrer Celia Del Monte , Muñoz-Serrano Antonio , Sarmiento María del Carmen , Moratilla Lucas , Miguel-Ferrero Miriam , De Ceano-Vivas María , Martínez Leopoldo 
Published: September 2021

Abstract
Introduction: Since the COVID-19 pandemic confinement was established in Spain on March 9, 2020, the number of visits to the paediatric Emergency Department (ED) has decreased dramatically, probably due to the fear of parents becoming infected in the hospital environment. The aim of this work is to analyse the medium-term consequences during the first 9 months after the onset of the COVID-19 pandemic in children with acute appendicitis (AA).Methods: A retrospective study was performed on children operated on for AA in our institution between 2017-2020, who were distributed in two groups according to the date of surgery: COVID-19 group (after March 9, 2020) and control group (before March 9, 2020). Demographic variables, associated symptoms, time from symptoms onset, hospital stay, rate of complicated AA and postoperative complications were analysed.Results: A total of 1274 patients were included (288 COVID group; 986 control group), without demographic differences between them. Time from symptom onset was significantly longer in COVID-19 group patients (34.5 vs. 24.2 hours; p=0.021), although no differences in associated symptoms were observed between both groups. COVID-19 group patients presented a higher rate of complicated AA (20.1% vs. 14%; OR: 1.55; CI95%[1.10-2.18]; p=0.008), a longer hospital stay (3.5 vs. 2.8 days; p=0.042) as well as a higher rate of postoperative complications (21.5% vs. 15.7%; OR: 1.47; CI95%[(1.06-2.04)]; p=0.008).Conclusion: This study shows the negative medium-term effects of the COVID-19 pandemic on children with acute appendicitis: delayed ED visits, increased rate of complicated AA, increased hospital stay and increased postoperative complications.
Photocatalytic Degradation of Composites With Magnesium Aluminum Hydrotalcite Derived Metal Oxides and g-C3N4
Authors: Yu Mingwei , Zhang Lianhong , Wen Jie , Zhang Hui , Liu Faping , Lv Yanjun , Zhao Xiaodong 
Published: September 2021

Abstract
The remove of the organic pollutants in water plays an important role on the environmental protection, thus photocatalysis, as an effective method, has been attained much attention to deal with this problem. In this paper, a composite of g-C3N4 and Mg-Al hydrotalcite derived metal oxides was prepared to degrade these organic pollutants by simple calcination and co-precipitation methods. And Mg-Al hydrotalcite derived metal oxides were successfully coated on the surface of g-C3N4. The photocatalytic degradation rate of methylene blue reached 97.3% within 1h under visible light, and the degradation rate constant was 0.0432min-1, which is 3.6 times that of g-C3N4. In the recycling process of the catalyst, the good stability of photocatalytic degradation was found. Though characterization analysis, more active sites are exposed to absorb more organic pollutants on the mater surface in the presence of the interinserted and coated structures of composite materials, and the "face to face" contact structure between 2D materials is formed to promote the separation of photogenerated carriers. In addition, the photocatalytic degradation mechanism of the catalyst was explained by free radical scavenging experiment. The material provides an effective method for removing organic pollutants in water, and has broad application prospects.
Characterization and genome analysis of two novel Aeromonas hydrophila phages PZL-Ah1and PZL-Ah8
Authors: Yu Huabo , Feng Chao , Zhang Liang , Chi Teng , Qi Yanling , Jia Kaixiang , Zhang Yang , Wei Junfeng , Qian Aidong , Sun Wuwen , Shan Xiaofeng , Zhang Lei 
Published: September 2021

Abstract
Aeromonas hydrophila (A.hydrophila) is an opportunistic pathogen of fish-human-livestock, which poses a seriously affects to the development of aquaculture. Phage therapy is considered as a process to alternatively control bacterial infections and contaminations. In this study, the genomes of two Aeromonas hydrophila- specific phages PZL-Ah1 and PZL-Ah8 were isolated, characterized and genomic sequence analyzed. Transmission electron microscopy showed that the two phages had been classified as the member of the Podoviridae family. Both the two phages in this study had relatively narrow host range with lytic activity against Aeromonas spp. strains. However, they could lyse 3 common A.hydrophila strain. As revealed from the whole genomic sequence analysis, PZL-Ah1 and PZL-Ah8 coverd the double-stranded genome of 38,641 bp and 40,855 bp in length, with the GC content of 53.68% and 51.89%, respectively. Through gene comparison in NCBI database revealed that PZL-Ah1 and PZL-Ah8 were 97.67% − 95.51% identical to Stenotrophomonas phage IME15 and Aeromonas Phage T7-Ah. Phylogenetic analysis showed that PZL-Ah8, PZL-Ah1 and other two phages belonged to the same genus. A total of 44 and 52 open reading frames (ORFs) were predicted in the PZL-Ah1 and PZL-Ah8 genome, respectively. In the process of gene annotation, 28 (63.6%) ORFs in PZL-Ah1 and 29 (55.8%) ORFs in PZL-Ah8 were known to functional proteins in NCBI database, while the remaining ORFs were classified as “hypothetical proteins”, whose functions were yet unknown. By comparing, ORF 02, ORF 29 and ORF 04 in PZL-Ah1, ORF24 in PZL-Ah8 were responsible for the host cell lysis. In conclusion, genomic studies of these two novel phages would lay the foundation for expanding the phage genome database and providing good candidates for phage typing applications.
Self-referenced method for the Judd–Ofelt parametrisation of the Eu3+ excitation spectrum
Authors: Ciric Aleksandar , Marciniak Lukasz , Dramicanin Miroslav 
Published: September 2021

Abstract
Judd-Ofelt theory presents a centrepiece in spectroscopy of lanthanides since it explains and predicts 4f absorptions and emissions from only 3 intensity parameters. A self-referenced method for calculating Judd–Ofelt intensity parameters from the excitation spectra of Eu3+-activated luminescent materials is proposed in this study along with a description of the parametrisation procedure and free user-friendly web application. It uses the integrated intensities of the 7F0→5D2, 7F0→5D4, and 7F0→5L6 transitions in the excitation spectrum for calculations and the integrated intensity of the 7F0→5D1 magnetic dipole transition for calibration. This approach allows a simple derivation of the Ω6 intensity parameter, which is difficult to calculate precisely by Krupke’s parametrisation of the emission spectrum and, therefore, frequently omitted in published research papers. Compared to the parametrisation of absorption spectra, the described method is more accurate, can be applied to any material form, and requires a single excitation spectrum.
Mediating Effect of Students' Perception in Programming on the Relationship Between Project Work and College Students' Interest in Programming
Authors: Senior Isaac Ampofo Atta 
Published: September 2021

Abstract
Computer programming has been a subject of debate whether students have interest or not. Students' impressions of their own abilities to program and of programming in general are influenced by their early programming experiences, which play a role in encouraging or discouraging students' interest in computing areas. As a result, project work as a method of teaching has been adopted by many lecturers in teaching computer programming. However, the study sought to assess the mediating influence of students' perception in the relationship between project work and college students' interest in programming. The study used a descriptive survey design. The target population for the study included all Computer Science and Mathematics students in the University of Cape Coast, Ghana. The population for the study was 2,410 students with a sample size of 332. The researcher used a questionnaire to gather the data for studying the issue under investigation. Analysis of the data was done through the use of the PROCESS Macro. The results revealed that the mediating effect of students’ perception in programming on the relationship between project work and college students’ interest in programming account for only 0.34% of the contribution of factors that influence college students’ interest in programming.
Vibration Control of Weakly Rigid Casing Based on Gasbag-rubber Damping Flexible Fixture
Authors: Zhu Xiaohua , Zhang Yao , Li Tian , Dong Liangliang , Tang Junlei , Zhang Shengwei 
Published: September 2021

Abstract
Combustion chamber casing is a key component of aeroengine, because of its poor rigidity, severe chattering occurs during milling, which seriously affects the surface quality and processing efficiency of the casing, and the existence of geometric nonlinear problems in the machining process makes it difficult to predict machining vibration. Therefore, it is of great significance to study the vibration law of thin-walled casing and reduce machining vibration. Aiming at the problem of vibration control of thin-walled casing, this paper proposes a new type of gasbag-rubber damping flexible fixture, which differ from the ordinary rigid fixture, this fixture has adjustable clamping force and good vibration damping ability. The key factors affecting the vibration response of the thin-walled casing are studied through establishing an equivalent dynamic model of the workpiece-fixture system. The research results show that the gasbag-rubber damping flexible fixture can effectively provide support stiffness, which is beneficial to reduce the vibration of the workpiece during processing; According to the actual thickness of different workpieces, the appropriate gasbag pressure is recommended to give play to the vibration damping performance of the fixture; It is recommended that the thickness of the rubber damping block in practice is 8~12mm. The research work in this paper has important guiding significance for the design and use of the gasbag-rubber damping flexible fixture, and provides an effective theoretical prediction for the vibration of the thin-walled casing.
Effects of eight-week progressive resistance training on physical fitness and psychological health in adolescent males
Authors: Afonso José , Sadeghi Masoud , razi Omid , Martins Alexandre , Parnow Abdolhossein 
Published: September 2021

Abstract
Introduction: Physical fitness and psychosocial health might improve through resistance training programs. However, there has been controversy regarding the efficacy of different exercise programs. To compare the effect of 8 weeks’ resistance training with linear and undulating programming on physical fitness and mental health.Methods: 29 healthy and untrained students (age: 16.06±0.83) were randomly divided into three groups: (1) control (n= 6), (2) linear programmed resistance training (LPRT) (n= 12), and (3) undulating programmed resistance training (UPRT) (n= 11). After two weeks of familiarization, 1RM values were obtained. Thereafter, experimental groups attended a resistance training program of 3 sessions per week for 8 weeks. Both groups had a similar plan until the fourth week. Then, intensity was increased up to 70% of 1RM on a weekly basis for the LPRT group, and varied on a daily basis for the UPRT group. Upper- and lower-extremities strength and endurance, balance, speed, explosive-power, lean body mass, general mental health (GSQ) and physical self-concept (PSCQ) were measured.Results: Experimental groups produced significant improvements in physical outcomes, in comparison with controls. There were no improvements in GSQ and PSCQ. There were no statistically significant differences between the two programs.Conclusion: Both linear and undulating programs improved physical fitness of previously sedentary adolescent boys to a similar extent. For practical purposes, as long as loads are individually adjusted, the type of program may not be relevant in beginner practitioners. Furthermore, both models were ineffective in producing changes in the psychosocial variables.
Formação Docente na Área Contábil: Contribuições da Disciplina de Metodologia do Ensino oferecida na Pós-Graduação Stricto Sensu
Authors: Silva Cris Ferreira da , Ferreira Layne Vitória , Leal Edvalda Araújo , Miranda Gilberto José 
Published: September 2021

O objetivo do presente estudo foi investigar a contribuição da disciplina de Metodologia do Ensino, oferecida por um Programa de Pós-Graduação stricto sensu em Ciências Contábeis, localizado em Minas Gerais. A pesquisa foi realizada com os alunos de uma instituição pública brasileira, a amostra é composta de 27 pós-graduandos que participaram da entrevista narrativa. Os resultados apontaram que a disciplina de Metodologia do Ensino contribui para a formação docente dos alunos que estão iniciando a carreira, propicia conhecer conteúdos relevantes referentes à didática e possibilitou aos pós-graduandos conhecerem e aplicarem diferentes metodologias de ensino. Para aqueles que já atuam na docência, a disciplina promove uma reflexão sobre métodos de ensino e o aperfeiçoamento das técnicas utilizadas no ambiente educacional. Percebe-se que a formação docente exige o aprimoramento contínuo das estratégias de ensino e discussões sobre os temas que envolvem conteúdos como: planejamento pedagógico, currículo e processo de avaliação, dentre outros. Os resultados sugerem a necessidade de sistematização da formação docente, notadamente por meio da obrigatoriedade de disciplinas de caráter didático-pedagógico.
A alfabetização e a heterogeneidade de conhecimentos sobre a escrita no Brasil e na França
Authors: Torres da Silva Nayanne Nayara , Borges Correia de Albuquerque Eliana 
Published: September 2021

A presente investigação analisou as práticas de professoras do 1º ano do Ensino Fundamental do Brasil e da França no atendimento à heterogeneidade de conhecimentos sobre a escrita alfabética dos alunos, assim como os diferentes níveis de apropriação do sistema de escrita das crianças de ambas as turmas ao início e final do ano letivo. Os procedimentos metodológicos envolveram observações e entrevistas, realizadas com as professoras, diagnoses de escrita de palavras, aplicadas aos alunos brasileiros, e a análise dos cadernos de classe dos aprendizes franceses. Os dados da investigação, tratados por meio da análise temática de conteúdo, evidenciaram diferenças significativas nas aprendizagens dos alunos brasileiros e franceses, relacionadas, entre outras coisas, à forma como as docentes lidavam com os diferentes conhecimentos das crianças no que se refere à apropriação da escrita alfabética. A professora brasileira tinha mais dificuldades para avaliar os conhecimentos dos seus alunos e tratar a heterogeneidade da sua classe.
Turismofobia em Barcelona: um tema (que era?) emergente
Authors: Soares Oliveira Josefa Laize , Da Silva Neves Carla Carolina , Panosso Netto Alexandre , Ferraz Severini Valéria 
Published: September 2021

Os excessos do fenômeno turístico giram em torno de um paradigma social. À medida em que se insere nas dinâmicas que caracterizam uma cidade contemporânea, este campo de atuação e de estudos tornou-se sinônimo de expectativas sobre momentos memoráveis (para quem viaja) e de desenvolvimento socioeconômico (para quem reside em localidades turísticas). Em contrapartida, os efeitos ocasionados pela massificação dos destinos quebram as formas de alcance das projeções positivas, ainda que os interesses entre os atores envolvidos sejam distintos. O objetivo deste artigo foi analisar estes efeitos na rotina de residentes da cidade de Barcelona, na Espanha, bem como aspectos da hostilidade a turistas. Até o final do ano de 2019 e início de 2020, a cidade estava no centro das discussões em torno de um fenômeno denominado turismofobia. Na compreensão de tais questões, foram consultados em profundidade 24 artigos científicos disponíveis na literatura entre turismo, hospitalidade e política. Por meio de análise qualitativa, os resultados revelam que ações para o desenvolvimento do turismo precisam ser repensadas e adaptadas às dinâmicas da turismofobia. Assim, o atual cenário da saúde pública global, em decorrência da pandemia induzida pelo Covid-19, trouxe novas reflexões entre discussões sobre políticas rigidamente sustentáveis e a dinâmica pré-estagnação das viagens.
Palavras-chave: Barcelona. Turismofobia. Turismo de Massa. Gentrificação. Overtourism. Hostilidade.
Dedicated COVID-19 Resource Center in Radiology Journals: Its Citation
Metrics and Altmetrics Impact
Authors: Al-Ryalat Nosaiba , Malkawi Lna , AlRyalat Saif Aldeen 
Published: September 2021

Background:
Since the emergence of coronavirus disease 2019 (COVID-19), several
journals have established a dedicated resource center for all the articles published on COVID-19.
Our study compared the altmetric impact captured by articles published in journals having a
COVID-19 resource center.

Methods:
We used the Web of Science database to assess radiology journals publishing the most
common articles on COVID-19. We used the dimensions database to assess citations received and
altmetric attention score for each article. For each article, we extracted several citations received
and altmetric attention scores. To account for the variation in strength and exposure between included
journals, we adopted a normalization strategy and regression analysis in our statistical analysis.

Results:
A total of 494 articles were included in the current assessment, including 334 (67.6%) articles
published in journals with the dedicated COVID-19 resource center, including European radiology,
American Journal of Roentgenology, Radiology, and Journal of the American college of radiology,
while European Journal of Nuclear Medicine and Molecular Imaging, Academic Radiology
did not have COVID-19 resource center. Journals with COVID-19 resource center had a mean normalized
altmetric attention score of 0.38 higher (95% CI 0.25 to 0.50; p< 0.001) and a mean normalized
citation count of 6.73 higher (95% CI 3.99 to 9.48; p< 0.001) than those without
COVID-19 resource center.

Conclusion:
Radiology journals that provided COVID-19 articles in a dedicated resource center
within its homepage had greater attention and higher citation for their COVID-19 articles than journals
that did not have such a dedicated resource center.
Toward Designs of Workplace Stress Management Mobile Apps for Frontline Health Workers During the COVID-19 Pandemic and Beyond: Mixed Methods Qualitative Study
Authors: Chaudhry Beenish Moalla , Islam Ashraful , Matthieu Monica 
Published: September 2021

Background
In recent years, mobile apps have been developed to prevent burnout, promote anxiety management, and provide health education to workers in various workplace settings. However, there remains a paucity of such apps for frontline health workers (FHWs), even though FHWs are the most susceptible to stress due to the nature of their jobs.

Objective
The goal of this study was to provide suggestions for designing stress management apps to address workplace stressors of FHWs based on the understanding of their needs from FHWs’ own perspectives and theories of stress.

Methods
A mixed methods qualitative study was conducted. Using a variety of search strings, we first collected 41 relevant web-based news articles published between December 2019 and May 2020 through the Google search engine. We then conducted a cross-sectional survey with 20 FHWs. Two researchers independently conducted qualitative analysis of all the collected data using a deductive followed by an inductive approach.

Results
Prevailing uncertainty and fear of contracting the infection was causing stress among FHWs. Moral injury associated with seeing patients die from lack of care and lack of experience in handling various circumstances were other sources of stress. FHWs mentioned 4 coping strategies. Quick coping strategies such as walking away from stressful situations, entertainment, and exercise were the most common ways to mitigate the impact of stress at work. Peer support and counseling services were other popular methods. Building resilience and driving oneself forward using internal motivation were also meaningful ways of overcoming stressful situations. Time constraints and limited management support prevented FHWs from engaging in stress management activities.

Conclusions
Our study identified stressors, coping strategies, and challenges with applying coping strategies that can guide the design of stress management apps for FHWs. Given that the pandemic is ongoing and health care crises continue, FHWs remain a vulnerable population in need of attention.
Una moneda supranacional en el espíritu de Keynes: China (con Rusia y América Latina) podría crear un mejor sistema financiero internacional
Authors: Andresen Trond 
Published: September 2021

<p>Este breve artículo argumenta a favor de la implementación de una unión de compensación internacional y una nueva moneda internacional en la línea del bancor propuesto por Keynes. Desde la perspectiva de los sistemas de control, dicho sistema ofrece estabilidad a las finanzas internacionales. Ha llegado el momento oportuno para que surja un sistema de este tipo, que China podría ofrecer en un contexto regional.</p><div><br clear="all" /><div><p> </p></div></div>