bluuebunny/crossref_metadata_2025_split huggingface dataset:
Formación inicial de profesorado, el papel de los tutores de prácticas
Authors: Bernárdez-Gómez Abraham 
Published: July 2021

La relación teoría-práctica y el comienzo de la vida laboral para los profesionales de la educación son aspectos de primer orden, donde las prácticas supervisadas adquieren un valor importante en su formación. Entre estos, los tutores de practicum juegan un papel fundamental, ya que son el primer contacto con profesionales activos. Por esta razón, este artículo tiene como objetivo identificar y explicar los roles que juegan los tutores de pasantías en la formación inicial del profesorado. Se llevará a cabo utilizando una metodología cualitativa que emplea entrevistas en profundidad, analizadas con el software ATLAS.ti. Se concluye la relevancia de los diferentes roles que emergen, destacando la importancia de tres de ellos para el desarrollo profesional de los estudiantes.
The relationship between theory and practice and the beginning of a teaching career are aspects of utmost importance where supervised school-located placements are specially important. School supervisors during students’ training periods are key since they are the first contact students have with active teachers. For this reason, this article aims to identify and explore the role of school supervisors in initial training. A qualitative methodology was used in which interviews were analyzed with the ATLAS.ti software. Results highlight the relevance of the different roles that emerge, especially three of them, when it comes to students’ professional development.
Variables implicadas en la adquisición de Competencias Específicas: percepción del futuro Maestro de Educación Primaria
Authors: García Hernández Maria Luisa , Cano Muñoz María Ángeles 
Published: July 2021

Tomando como punto de referencia el marco Europeo de Educación Superior, el artículo que a continuación se presenta tiene como objetivo principal conocer desde la percepción del alumnado -aún en proceso de formación- del Grado de Maestro en Educación Primaria, cuáles son las variables que han influido en la adquisición de las competencias específicas que debe adquirir para el desarrollo de su perfil profesional. Para llevar a cabo este trabajo, se ha empleado una metodología no experimental de naturaleza descriptiva, aplicando para la recogida de datos de la muestra (n=109) un cuestionario cerrado ad-hoc. A partir del análisis de las respuestas, se revelan cuáles son las variables más influyentes en la adquisición de las competencias específicas y las que los alumnos universitarios consideran menos desarrolladas para alcanzar dichas competencias. Entre los resultados a destacar y según el alumnado, el tipo de evaluación es la variable que menos ha influido en la adquisición de las competencias específicas del título. Con los datos que se muestran a continuación, se pretende realizar un acercamiento a los procesos educativos que tienen lugar en las aulas universitarias desde las percepciones de los alumnos y, sobre todo, analizar su desarrollo competencial como futuros docentes que influirá, de manera inevitable, en su práctica en las aulas escolares.
Taking the European Framework of Higher Education as a point of reference, this article explores the perception of trainees enrolled in the Master's Degree in Primary Education with regard to the variables that have influenced the acquisition of the specific competences that they must acquire for the development of their professional profile. To conduct this study, a non-experimental methodology of a descriptive nature was used, applying a closed ad-hoc questionnaire for the collection of data from the sample (n = 109). The analysis of the responses reveals the most influential variables in the acquisition of the specific competences and those variables that university students consider least developed to achieve such competences. The results indicate that students hold the type of evaluation as the least influential variable regarding the acquisition of the specific competences of the degree. These data aim to approach educational processes that take place in university classrooms from the perceptions of students and, above all, analyse students’ competence development since this will inevitably influence their future teaching.
Casualization in Occupational Settings: An Investigative Study
Authors: Osakwe Kennedy A. , Osakwe Rachael E. 
Published: July 2021

Introduction: This research explored the Effects of Casualization on the Welfare of Workers using a de-identified multinational oil company in Nigeria as a representative case.
Objectives: The objectives of the study were to examine the effects of casualization of workers, associated irregularity of work, and deprivation of workers’ right.
Methodology: A close-ended questionnaire was used to collect primary data. Out of 150 copies of the questionnaire administered, 122 were dully filled, returned and analysed using descriptive statistics.
Results & Discussion: Three hypotheses were proposed and analysed using multiple regression of ordinary least square (OLS) statistical method and tested at 0.05 level of significance for the hypotheses. The result showed that there were significant negative effects of casualization of workers for a short-term contract work, irregularity of casualization of work, and deprivation of workers right to negotiate.
Conclusion: Hallmarks of casualization of labour include short term contract work; irregularity of work; and deprivation of workers’ right to negotiate adversely affects the welfare packages of workers. These practices have inherent occupational health implication on workers.
Recommendations: Casualization of labour as seen in this study is a despicable model that should be discontinued. However, if it must be practiced, the human resources, industrial relations, labour union and occupational health experts in such organizations should repackage such contracts to include allowances, job security, negotiation rights, dignity, benefits and welfare clauses as in permanent full time employment.
Positive Health Outcome is Directly Proportional to the Community Participation
Authors: Anwar Sadaf , Ahmad Farah 
Published: July 2021

Community participation has been a crucial part of health agenda. It has captured the attention and has especially gained its acceptance by health policy makers’ since Alma Ata Conference. Declaration of 1978 which had a significant impact on public health.
This review article comprised the studies and focused on the development of community participation and creating awareness among. And eventually bridge them with the healthcare service providers which will ease the burden from the healthcare setups and help solve the deeply rooted problems.
Information regarding community approaches and participation were retrieved through Google Scholar, PubMed, Medline and other authentic search engines.
Impact of Smartphones on Physical and Psychosocial Well-being of Children and Adolescent
Authors: Anwar Sadaf , Saeed Rabeeya , Danish Syed Hasan , Azhar Farah 
Published: July 2021

Since the last two decades, the risk factor of various diseases has spiked up among the children and adolescents, which has an immediate alliance to the increased use of smartphones. Previously children used to lag behind their adults for possession of smartphones, but with ease of accessibility in succeeding years, smartphone ownership among teens has jumped to 72% with unnecessary prolonged screen time durations.
The objective of this literature review was to highlight and refresh the slow poisoning effects of the smartphones in our younger generation due to its compelling traits which make them use it for a long time carelessly.
The effect of Relationship Network and Business Model Innovation on Start-up Performance in Vietnam
Authors: Thang Nguyen Manh 
Published: July 2021

Aims: It aims to build and verify the theoretical model among the network of relationships, business model innovation and start-up performance of start-up companies.
Methodology: The study employed qualitative and quantitative methods of research in 550 start-up firms in Vietnam. The qualitative method is utilised to adjust and complement the scale (interviews with experts). Utilising the PLS-SEM analysis method with the SmartPLS support tool, the quantitative method is used to assess reliability, permissibility, model testing, and research hypotheses.
Results: Start-up firms' relationship network (with government officials, social contacts, and business partners) has a beneficial effect on their performance. Relations with government officials benefit value creation, value proposition, and value capture innovation. Social relationships have a positive impact on value proposition innovation. Relationships with business partners contribute to the creation of value and the innovation of new products and services. Business model innovation can have a sizable impact on the performance of a start-up. Finally, environmental dynamism has no regulatory effect on the innovation of business models or the performance of start-up firms.
Conclusion: This study has filled theoretical gaps by confirming the results of prior studies that had questioned the connection between the network of relationships, business model innovation, and start-up performance. The findings propose management solutions for start-ups' owners and senior managers, policymakers, and official government entities.
Condensation Reactions of Methyl Derivatives of Quinoxaline-1,4-Dioxide with 4,4'-Biphenyl Carboxaldehyde
Authors: Alkhudari Mohamad 
Published: July 2021

Aims: To synthesis new compounds via condensation reactions between 2-methyl quinoxaline-1,4-dioxide derivatives 4,4'-biphenyl carboxaldehyde.
Methodology: The Quinoxalines derivatives were prepared from 2-nitroaniline derivatives using the Beirut reaction, and the condensation reaction was carried out at room temperature in absolute methanol. Based on IR and NMR spectroscopic techniques, the structures of all products have been suggested. For their synthesis, suitable mechanisms have been suggested.
Results: In this work, condensation reactions involving 2-methyl quinoxaline-1,4-dioxide derivatives and 4,4'-biphenyl carboxaldehyde were performed.
Conclusion: The final compounds, we suppose, have considerable applications in fluorescent and chromophoric activities. In all known solvents, the products were just slightly soluble. Products have been subjected to sulfonation reactions, although with limited success.
Divergence of Cultivable Bacteria Associated with Larvae and Adult Bactrocera dorsalis (Diptera: Tephritidae) Laboratory-Reared Strains
Authors: Akami Mazarin , Tamgue Ousman , Ren Xueming , Wang Yaohui , Qi Xuewei , Luther Koanga Mogtomo Martin , Ngane Rosalie Annie Ngono , Niu Chang-Ying 
Published: July 2021

Insects entertain intricate and mutualistic relationship with an array of microorganisms, which significantly influence their fitness, ecology and evolution. In recent decades, there has been increasing interest toward studying the effects of microbiome on many host insects (Dipterans, Lepidopterans, and Coleopterans). Studies so far realized indicate that gut microbiome contribute to host nutritional ecology, defense, immunity and lifespan.
Bactrocera dorsalis (Tephritidae: Diptera) is a polyphagous fruit fly which attacks a huge variety of fruits and vegetables worldwide and has been placed as a quarantine species by many countries. To investigate the specific functions of the gut endosymbionts, it is a prerequisite to know the composition of gut bacterial communities whose manipulation will help to decipher their ecological relevance. Here, we used the culture-dependent technique to isolate and identify gut bacteria from B. dorsalis at different developmental stages. The results revealed 11 bacterial species from the third instar larvae, 18 and 12 from female and male populations, respectively. These bacteria were assigned to six families, namely, Enterobacteriaceae, Enterococcaceae, Staphylococcaceae, Streptococcaceae, Micrococcaceae and Bacillaceae. Bacterial species from these families were differentially represented in various samples, except Klebsiella oxytoca , Enterobacter cloacae, Pantoea dispers and Enterococcus faecalis that were detected at all developmental stages. Overall, Enterobacteriaceae was the most dominant family in females and third instar larvae accounting for 57.89% and 26.32%, respectively, while Enterococcaceae was dominant in males with 75% of the total bacterial taxa. These results suggest that B. dorsalis possesses a huge variety of cultivable bacteria that could be used to explore their specific functions on host physiology and fitness.
Prolonged Exposure to Antimicrobials Induces Changes in Susceptibility to Antibiotics, Biofilm Formation and Pathogenicity in Staphylococcus aureus
Authors: Arsene Mbarga M. J. , Viktorovna Podoprigora I. , Grigorievna Volina E. , Davares Anyutoulou K. L. , Sergeevna Das M. , Nikolaevna Sharova I. 
Published: July 2021

Introduction: Frequent exposure to certain biocidal agents such as hypochlorous acid (HOCl), triclosan and benzalkonium chloride (BAC) has been reported to induce significant changes in Staphylococcus aureus. However, very few studies of this type have been conducted with conventional antimicrobials.
Aim: The current investigation aimed to explore the phenotypic changes (susceptibility to antibiotics, biofilm formation and relative pathogenicity) that occur in S. aureus after recurrent exposure to antimicrobials.
Methods: We compared the effects of long-term exposure to ampicillin, cefazoline, kanamycin and silver nanoparticles (AgNPs) on their susceptibility to antibiotics, biofilm formation, growth rate and pathogenicity in Staphylococcus aureus ATCC 6538. The minimum inhibitory concentrations (MIC) were determined using the microplate mircodilution method and the bacteria were exposed to increasing concentrations of each antimicrobial (MIC/2 to MIC) prepared in the BHIB for 8 days. The sensitivity of bacteria to antibiotics was assessed using the Kirby-Bauer disc diffusion method, the biofilm formation with crystal violet bacterial attachment assay and relative pathogenicity was assessed through a Galleria mellonella waxworm model.
Results: The data in this investigation indicate that long-term exposure to antimicrobials may induce several changes in S. aureus. The exposure to ampicillin induced resistance to ceftazidime, tetracycline and ceftriaxone while the susceptibility to ceftazidime decreased in bacteria exposed to cefazolin and Kanamycin. Meanwhile, exposure to AgNPs induced some changes in susceptibility to trimethoprim and ceftazidime without causing resistance. Similarly, the strains exposed to ampicillin and kanamycin grew more rapidly and produced more biofilms than the control strains whereas the strains exposed to the AgNPs produced less biofilms. On G. melonella model, cefazolin seems to have attenuated the pathogenicity while the 3 other strains were more pathogenic than the controls.
Conclusion: Long term exposure of S. aureus to antibiotics and AgNPs induces several changes in susceptibility to other antibiotics, growth rate, biofilm formation and pathogenicity; and these changes should be taken into account when choosing antibiotics for treatment of diseases caused by S. aureus.
Progression From Subclinical Inflammation to Overt Spondyloarthritis in First‐Degree Relatives of Patients in Association With HLA–B27: The Pre‐Spondyloarthritis Cohort
Authors: de Jong Henriëtte M. Y. , de Winter Janneke J. H. , van der Horst‐Bruinsma Irene E. , van Schaardenburg Dirk‐Jan , van Gaalen Floris A. , van Tubergen Astrid M. , Weel Angelique E. A. M. , Landewé Robert B. M. , Baeten Dominique L. P. , van de Sande Marleen G. H. 
Published: July 2021

ObjectiveAs first‐degree relatives (FDRs) of HLA–B27–positive patients with axial spondyloarthritis (SpA) have an increased risk of developing axial SpA, the objectives were 1) to evaluate the presence of highly specific imaging features as well as clinical signs of SpA at baseline and after 1 year of follow‐up, and 2) to describe the evolution toward clinical disease within 1 year of follow‐up in a cohort of seemingly healthy FDRs of HLA–B27–positive axial SpA patients.MethodsThe Pre‐SpA cohort is a 5‐year prospective inception cohort of seemingly healthy FDRs of HLA–B27–positive axial SpA patients. Clinical and imaging features were collected and recorded.ResultsAt baseline, 19% of the FDRs reported inflammatory back pain, 32% current arthralgia, 3% arthritis (ever), 5% enthesitis (ever), and 1% dactylitis (ever), and 3% had an extraarticular manifestation. C‐reactive protein level was elevated in 16%, and erythrocyte sedimentation rate was elevated in 7%. On magnetic resonance imaging (MRI) views of sacroiliac joints, 10% had a Spondyloarthritis Research Consortium of Canada score of ≥2, 4% had a score of ≥5, and 4% had deep lesions. In total, 1% fulfilled the modified New York criteria for radiographic sacroiliitis. Clinical, MRI, and acute phase findings were equally distributed between HLA–B27–positive and –negative FDRs. After 1 year of follow‐up, clinical parameters did not change on the group level, but 6% of the FDRs were clinically diagnosed with axial SpA, of whom 86% were HLA–B27–positive.ConclusionFeatures associated with SpA or imaging abnormalities were found in up to 32% of seemingly healthy FDRs, with an equal distribution between HLA–B27–positive and –negative FDRs. Progression to clinical axial SpA within 1 year of follow‐up was mainly observed in HLA–B27–positive FDRs.
A Flexible Multifunctional Triboelectric Nanogenerator Based on MXene/PVA Hydrogel
Authors: Luo Xiongxin , Zhu Laipan , Wang Yi‐Chi , Li Jiayu , Nie Jiajia , Wang Zhong Lin 
Published: July 2021

AbstractTriboelectric nanogenerators (TENGs) represent an emerging technology in energy harvesting, medical treatment, and information technology. Flexible, portable, and self‐powered electronic devices based on TENGs are much desired, whereas the complex preparation processes and high cost of traditional flexible electrodes hinder their practical applications. Here, an MXene/polyvinyl alcohol (PVA) hydrogel TENG (MH‐TENG) is presented with simple fabrication, high output performance, and versatile applications. The doping of MXene nanosheets promotes the crosslinking of the PVA hydrogel and improves the stretchability of the composite hydrogel. The MXene nanosheets also form microchannels on surfaces, which not only enhances the conductivity of the hydrogel by improving the transport of ions but also generates an extra triboelectric output via a streaming vibration potential mechanism. The measured open‐circuit voltage of the MH‐TENG reaches up to 230 V even in a single‐electrode mode. The MH‐TENG can be stretched up to 200% of the original length and demonstrates a monotonical increasing relationship between the stretchable length and the short‐circuit voltage. By utilizing the MH‐TENG's outstanding stretchable property and ultrahigh sensitivity to mechanical stimuli, applications in wearable movement monitoring, high‐precision written stroke recognition, and low‐frequency mechanical energy harvesting are demonstrated.
Unveiling the Stabilities of Nickel‐Based Layered Oxide Cathodes at an Identical Degree of Delithiation in Lithium‐Based Batteries
Authors: Xie Qiang , Cui Zehao , Manthiram Arumugam 
Published: July 2021

AbstractBulk, surface, and interfacial instabilities that impact the cycle and thermal performances are the major challenges with high‐energy‐density LiNi1−x–yMnxCoyO2 (NMC) cathodes with high nickel contents. It is generally believed that the instabilities and performance losses become exponentially aggravated as the nickel content increases. Disparate from this prevailing belief, it is herein demonstrated that NMC cathodes with higher Ni contents may imply better overall stability than “lower‐Ni” cathodes under an identical degree of delithiation (charging) conditions. With two representative cathodes, LiNi0.8Mn0.1Co0.1O2 and LiNiO2, a systematic investigation into their stabilities with control of the degree of delithiation is presented. Electrochemical tests indicate that LiNiO2 displays better cyclability than LiNi0.8Mn0.1Co0.1O2 at the same delithiation state. Comprehensive structural and interphase investigations unveil that the inferior cyclability of LiNi0.8Mn0.1Co0.1O2 predominantly results from aggravated parasitic reactions, and the interphase stability may be more critical than lattice stability in dictating cyclability. Also, LiNiO2 delivers similar or better thermal behavior than LiNi0.8Mn0.1Co0.1O2. The findings demonstrate a strong correlation of the stability of NMC cathodes to the degree of delithiation state rather than the Ni content itself, highlighting the importance of reassessing the true implications of Ni content and structural and interphasial tuning on the stabilities of NMC cathodes.
Topological Charge Switch in Active Multi‐Core Fibers
Authors: Beličev Petra P. , Gligorić Goran , Maluckov Aleksandra , Hadžievski Ljupčo , Turitsyn Sergei 
Published: July 2021

AbstractTopological properties can make light field remarkably robust to various external perturbations. The ability to control and change on demand topological characteristics of light paves the way to new interesting physical phenomena and applications. Here, numerical modelling design of the device based on active multi‐core fiber that can change topological charge of the state of light has been proposed. The concept is based on the nonlinear dynamics of optical vortices in active multi‐core optical fiber with linearly coupled cores, saturated gain, and constant linear losses. Results demonstrate that the proposed system can provide change of the topological charge of vortices.
New DyeVert system for contrast media volume reduction in percutaneous procedures: “Make kidney safe again”
Authors: Tarantini Giuseppe , Cardaioli Francesco 
Published: July 2021

Key Points
CI‐AKI is an iatrogenic renal damage that can occur in patients undergoing percutaneous procedures with the use of contrast media.
This article tested the efficacy and safety of the new DyeVert system, demonstrating a significant reduction in CM volume injected and in the incidence of post‐procedural CI‐AKI.
Future researches will be needed to confirm these results and identify the specific type of patient in which a reduction in CM volume would impact in clinical outcomes.
Preventing NSTEMI readmissions: Starting from the beginning
Authors: Vetrovec George W. 
Published: July 2021

Key Points
NSTEMI is associated with frequent 30‐ and 90‐day readmission rates.
Cardiovascular readmissions are reduced for patients undergoing coronary revascularization during the index admission.
Future analyses need to identify patients who may benefit from early revascularization defined in ways to improve implementation into consistent clinical practice.