bluuebunny/crossref_metadata_2025 huggingface dataset:
The Success and Complications of Complete-Arch Implant-Supported Fixed Monolithic Zirconia Restorations: A Systematic Review
Authors: Vozzo Ludovico Maria , Azevedo Luís , Fernandes Juliana Campos Hasse , Fonseca Patrícia , Araújo Filipe , Teixeira Wendel , Fernandes Gustavo Vicentis Oliveira , Correia André
Published: April 2023

In full-arch rehabilitation with implant-supported fixed prostheses, using monolithic zirconia seems to have several advantages regarding function and esthetics. However, the current scientific evidence is still limited. Thus, the aim of this investigation was to systematically review the literature on monolithic zirconia restorations for full-arch rehabilitation, particularly pursuing the survival rate and mechanical and biological complications. This study’s protocol was registered in PROSPERO (CRD42022301799). The primary literature search was performed in PubMed/MedLine and Web of Science, and a manual search was performed (checking cross-references). The focused question was, “In an adult population with one or both edentulous arches (P), the oral rehabilitation with implant-supported fixed-monolithic zirconia (full arch) (I), compared with oral rehabilitation using fixed-metal-ceramic prosthesis on implants (C), did show superior clinical results (O) in a minimum follow-up of 1 year (T)?” Inclusion and exclusion criteria were defined. Joana Briggs Institute tools were used to evaluate the quality of the studies. Meta-analysis was performed for the variable survival rate (%), applying the specific continuous moderator (follow-up). Data heterogeneity (I2) was assessed. From the initial search, 327 references were obtained. After eliminating duplicates and applying the inclusion/exclusion criteria by reading the titles, abstracts, and full text, seven articles were included. All included articles were observational longitudinal retrospective studies, with a number of prostheses between 7 and 2039. The mean age was 60 years, and the mean follow-up was 49.7 months. They had mandibular, maxillary, or bimaxillary rehabilitations, always with screw-retained retention, with an average survival rate of 97.23%. The number of implants ranged between four and eight. The quality of the articles was over 70%, and the heterogeneity was considered low (I2 = 28.64%). Within a mean follow-up of around four years, full-arch implant-supported monolithic zirconia rehabilitations had a high survival rate and minimal complications.
A Framework for Crop Yield Estimation and Change Detection Using Image Fusion of Microwave and Optical Satellite Dataset
Authors: Kaur Ravneet , Tiwari Reet Kamal , Maini Raman , Singh Sartajvir
Published: April 2023

Crop yield prediction is one of the crucial components of agriculture that plays an important role in the decision-making process for sustainable agriculture. Remote sensing provides the most efficient and cost-effective solution for the measurement of important agricultural parameters such as soil moisture level, but retrieval of the soil moisture contents from coarse resolution datasets, especially microwave datasets, remains a challenging task. In the present work, a machine learning-based framework is proposed to generate the enhanced resolution soil moisture products, i.e., classified maps and change maps, using an optical-based moderate resolution imaging spectroradiometer (MODIS) and microwave-based scatterometer satellite (SCATSAT-1) datasets. In the proposed framework, nearest-neighbor-based image fusion (NNIF), artificial neural networks (ANN), and post-classification-based change detection (PCCD) have been integrated to generate thematic and change maps. To confirm the effectiveness of the proposed framework, random forest post-classification-based change detection (RFPCD) has also been implemented, and it is concluded that the proposed framework achieved better results (88.67–91.80%) as compared to the RFPCD (86.80–87.80%) in the computation of change maps with σ°-HH. This study is important in terms of crop yield prediction analysis via the delivery of enhanced-resolution soil moisture products under all weather conditions.
Dynamic Path Planning of AGV Based on Kinematical Constraint A* Algorithm and Following DWA Fusion Algorithms
Authors: Yin Xiong , Cai Ping , Zhao Kangwen , Zhang Yu , Zhou Qian , Yao Daojin
Published: April 2023

In the field of AGV, a path planning algorithm is always a heated area. However, traditional path planning algorithms have many disadvantages. To solve these problems, this paper proposes a fusion algorithm that combines the kinematical constraint A* algorithm and the following dynamic window approach algorithm. The kinematical constraint A* algorithm can plan the global path. Firstly, the node optimization can reduce the number of child nodes. Secondly, improving the heuristic function can increase efficiency of path planning. Thirdly, the secondary redundancy can reduce the number of redundant nodes. Finally, the B spline curve can make the global path conform to the dynamic characteristics of AGV. The following DWA algorithm can be dynamic path planning and allow the AGV to avoidance moving obstacle. The optimization heuristic function of the local path is closer to the global optimal path. The simulation results show that, compared with the fusion algorithm of traditional A* algorithm and traditional DWA algorithm, the fusion algorithm reduces the length of path by 3.6%, time of path by 6.7% and the number of turns of final path by 25%.
FlexiChain 3.0: Distributed Ledger Technology-Based Intelligent Transportation for Vehicular Digital Asset Exchange in Smart Cities
Authors: Alkhodair Ahmad , Mohanty Saraju P. , Kougianos Elias
Published: April 2023

Due to the enormous amounts of data being generated between users, Intelligent Transportation Systems (ITS) are complex Cyber-Physical Systems that necessitate a reliable and safe infrastructure. Internet of Vehicles (IoV) is the term that describes the interconnection for every single node, device, sensor, and actuator that are Internet enabled, whether attached or unattached to vehicles. A single smart vehicle will generate a huge amount of data. Concurrently, it needs an instant response to avoid accidents since vehicles are fast-moving objects. In this work, we explore Distributed Ledger Technology (DLT) and collect data about consensus algorithms and their applicability to be used in the IoV as the backbone of ITS. Multiple distributed ledger networks are currently in operation. Some are used in finance or supply chains, and others are used for general decentralized applications. Despite the secure and decentralized nature of the blockchain, each of these networks has trade-offs and compromises. Based on the analysis of consensus algorithms, a conclusion has been made to design one that fits the requirements of ITS-IOV. FlexiChain 3.0 is proposed in this work to serve as a Layer0 network for different stakeholders in the IoV. A time analysis has been conducted and shows a capacity of 2.3 transactions per second, which is an acceptable speed to be used in IoV. Moreover, a security analysis was conducted as well and shows high security and high independence of the node number in terms of security level per the number of participants.
A Multi-Strategy Improved Sparrow Search Algorithm for Coverage Optimization in a WSN
Authors: Chen Hui , Wang Xu , Ge Bin , Zhang Tian , Zhu Zihang
Published: April 2023

To address the problems of low monitoring area coverage rate and the long moving distance of nodes in the process of coverage optimization in wireless sensor networks (WSNs), a multi-strategy improved sparrow search algorithm for coverage optimization in a WSN (IM-DTSSA) is proposed. Firstly, Delaunay triangulation is used to locate the uncovered areas in the network and optimize the initial population of the IM-DTSSA algorithm, which can improve the convergence speed and search accuracy of the algorithm. Secondly, the quality and quantity of the explorer population in the sparrow search algorithm are optimized by the non-dominated sorting algorithm, which can improve the global search capability of the algorithm. Finally, a two-sample learning strategy is used to improve the follower position update formula and to improve the ability of the algorithm to jump out of the local optimum. Simulation results show that the coverage rate of the IM-DTSSA algorithm is increased by 6.74%, 5.04% and 3.42% compared to the three other algorithms. The average moving distance of nodes is reduced by 7.93 m, 3.97 m, and 3.09 m, respectively. The results mean that the IM-DTSSA algorithm can effectively balance the coverage rate of the target area and the moving distance of nodes.
Assessment of Storage Potential of Onion Varieties Using Variables Extracted from a Mathematical Model 4-Parameter Hill Function (4-PHF)
Authors: Kumar Sunil , Basu Sudipta , Aravind J. , Anand Anjali
Published: April 2023

Onion seeds are prone to rapid germination and viability losses under unfavourable storage conditions. The final germination percentage is considered the most important parameter for determining the performance of seed lots after storage, although other quantitative traits, such as the time and speed of germination, help in more realistic predictions of seed germination. A study was conducted on seventeen seed lots of onion seeds to delineate the most comprehensive parameter indicating seed performance after storage using the four-parameter Hill function (4-PHF) mathematical model. Seeds of seventeen onion cultivars were subjected to accelerated ageing at 42 °C and 100% RH for 48, 96 and 144 h, followed by seed germination evaluation. The germination performance was evaluated by 4-PHF based on time-related parameters, such as the time to maximum germination rate (TMGR), time to 50% germination (T50), and uniformity (U), along with the germination percentage (a), shape and steepness of the Four-Parameter Hill Function (FPHF) curve (b), which were important determinants of the area under curve (AUC), and RoG (rate of germination) curves. Among the parameters, the AUC was found to provide the most comprehensive evaluation of the storage performance of the onion varieties and was decisive in the classification of the varieties as ‘good’ or ‘poor’ storers. A positive correlation between seed vigour index-I (SVI-I) and the AUC reiterated the suitability of using 4-PHF parameters for the assessment of the storage potential of onion varieties.
The Best Welfare Deal: Retirement Migrants as Welfare Maximizers
Authors: Calzada Inés , Páez Virginia , Martínez-Cassinello Rafael , Hervás Andrea
Published: April 2023

Retirement migration within Europe has increased enormously since the 1990s. It now involves millions of elderly Europeans moving from Central/Northern Europe (UK, Germany, Scandinavia) to Mediterranean countries (Malta, Portugal, Spain) in search of a better quality of life. Most previous research departs from an ethnographic perspective to look at the personal experiences and motivations of retirement migrants. In this paper, we adopt a macro-level perspective to address the use that retirement migrants make of the European framework of social rights. We aim to understand (a) to what extent do retirement migrants living in Spain ask for help from the local Social Services when they enter into dependency? (b) Do retirement migrants engage in strategies to maximize their welfare rights? To answer these questions, we carried out qualitative phone interviews with the coordinators of Social Services that cover 80 (out of 119) of the Spanish municipalities with larger numbers of retirement migrants (more than 30% of elderly residents are foreigners).
Agency and the Limits of Responsibility: Co-Management of Technology-Enabled Care in Supported Housing
Authors: Serpa Regina C. , Rolfe Steve , Gibson Grant , Lawrence Julia , McCall Vikki
Published: April 2023

Since at least 2012, UK housing providers (and policy makers) have introduced policies aimed at developing autonomy and independence among service users, through an agenda sometimes referred to as ‘responsibilisation’. This paper considers the role that technologies play in this agenda, through an analysis of how wellbeing and independence are facilitated amongst older social housing tenants. Based on case studies of four supported housing schemes in England, the research considers the capacity to exercise agency amongst older persons, through their willingness and ability to accept technological interventions, and the role of support networks to facilitate independent living. Using the concept of modalities of agency, the research examines the impact of implementing ‘low-level’ assistive technologies in the home, based on the perspectives of residents and staff. The interventions studied were designed to improve social relationships, promote self-sufficiency and support self-managed care (based on the principle that the most effective projects facilitate individual agency). The research findings identified that residents responded differentially to technology, based on their levels of capability, motivation, reluctance and resistance. Whilst the study demonstrated that small technological innovations could have disproportionately positive impacts in improving wellbeing, the research demonstrates the complex nature of agency and limits of responsibility. The paper argues that responsibilisation is part of a wider neoliberal project, where choice and agency are manufactured to create an idealised notion of the autonomous actor (in this case through technology-enabled care). The article argues that a collaborative approach to service provision in which responsibility is shared, via co-managed care, is a more effective means of enhancing agency, than one which advocates a withdrawal of support (in the guise of autonomy).
Optimization of Urban Public Transportation Considering the Modal Fleet Size: A Case Study from Palestine
Authors: Abuaisha Abdallah , Abu-Eisheh Sameer
Published: April 2023

We introduce a simple yet efficient approach to optimize the modal fleet size of urban public transportation services, considering both user- and operator-oriented factors. This is envisaged to enhance the potential for achieving sustainable urban transportation systems and, eventually, opportunities to create sustainable cities. The presented constraint optimization approach can be described as follows. First, the expected passenger demand and the cycle time for the public transportation service are estimated. Next, the desired constraints and parameters, such as those related to the headway and seat supply, are determined. Finally, the optimal combination of different vehicle classes and the number of trips satisfying all the defined constraints are determined. The case of an urban area in a developing country is considered. The resulting solution determines the optimal numbers of public transportation trips and vehicles, by mode, required to meet the expected passenger demand, provide a high-quality service with acceptable headways for passengers, and, at the same time, reduce the service providers’ costs as well as the environmental impacts. It is also concluded that a fleet composed of different modes can better facilitate the achievement of the optimal solution for passengers and service providers compared with the one-mode fleet.
The Evaluation of a Surgical Task-Sharing Program in South Sudan
Authors: Salehi Mina , Zivkovic Irena , Mayronne Stephanie , Letoquart Jean-Pierre , Joharifard Shahrzad , Joos Emilie
Published: April 2023

Five billion people lack access to surgery, with the highest burden being in sub-Saharan Africa. As the surgical workforce is crucial in closing this gap, the University of British Columbia collaborated with Médecins Sans Frontières to create and launch the Essential Surgical Skills (ESS) task-sharing program, which consists of online learning modules and hands-on surgical training. Our study aimed to evaluate this pilot program. This is a mixed-method prospective cohort study to evaluate the effectiveness of the ESS program in South Sudan. Quantitative data included patient outcomes (complications, re-operation, and mortality), surgical proficiency of the trainees (quiz, entrustable professional activity (EPA), and logbook data), and electronic surveys. We used semi-structured interviews to collect qualitative data. From July 2019 to February 2021, three trainees performed 385 operations. The most common procedures were skin graft (14.8%) and abscess drainage (9.6%). A total of 172 EPAs were completed, of which 136 (79%) demonstrated the independence of the trainees. During the training, surgical mortality (0.56% vs. 0.13%, p = 0.0541) and morbidity (17% vs. 12%, p = 0.1767) remained unchanged from the pretraining phase. Interviews and surveys revealed that surgical knowledge and interprofessional teamwork improved throughout the training. The program empowered trainees to develop surgical career paths and increased their local acceptance among patients and other healthcare providers. This study confirmed the feasibility of a surgical task-sharing program in South Sudan. This program evaluation will hopefully inform Ministries of Health and their partners for the development of a training pillar of National Surgical, Obstetric, and Anesthesia Plans in the sub-Saharan African region.
Chagas Disease Maternal Seroprevalence and Maternal–Fetal Health Outcomes in a Parturition Cohort in Western El Salvador
Authors: Lynn Mary K. , Rodriguez Aquino Marvin Stanley , Cornejo Rivas Pamela Michelle , Kanyangarara Mufaro , Self Stella C. W. , Campbell Berry A. , Nolan Melissa S.
Published: April 2023

Congenital Chagas disease is a growing concern, prioritized by the World Health Organization for public health action. El Salvador is home to some of the highest Chagas disease (Trypanosoma cruzi infection) burdens in the Americas, yet pregnancy screening remains neglected. This pilot investigation performed a maternal T. cruzi surveillance study in Western El Salvador among women presenting for labor and delivery. From 198 consented and enrolled pregnant women, 6% were T. cruzi positive by serology or molecular diagnosis. Half of the infants born to T. cruzi-positive women were admitted to the NICU for neonatal complications. Geospatial statistical clustering of cases was noted in the municipality of Jujutla. Older women and those knowing an infected relative or close friend were significantly more likely to test positive for T. cruzi infection at the time of parturition. In closing, maternal T. cruzi infections were significantly higher than national HIV or syphilis maternal rates, creating an urgent need to add T. cruzi to mandatory pregnancy screening programs.
Discourse Studies and Urban Research: Methodological Challenges, Achievements, and Future Prospects
Authors: Shirazi M. Reza
Published: April 2023

This paper offers a critical appraisal of the methodological capacity of Discourse Studies (DS) in conducting urban research. Based on an extensive literature search, 125 publications that explicitly claim to utilise DS were reviewed. The results show that DS has been utilised for its methodological value, critical lens, interdisciplinary approach, ability to reveal the undiscovered, and presentation of new insights to urban questions. This paper identifies and discusses major sources of inspiration and main trends in utilising DS in urban research. Theoretical diversity, the scarcity of analytical framework, and the lack of required expertise and skills are presented as three main methodological challenges for urban researchers. This paper concludes with suggestions for advancing the use of DS in urban research: obtaining an in-depth knowledge about its theoretical foundations, gaining an analytical overview of the strengths and weaknesses of different approaches, developing innovative frameworks that better explain urban questions, and gaining required linguistic knowledge for the application of DS.
Influences on Vibration Load Testing Levels for BEV Automotive Battery Packs
Authors: Heinzen Till , Plaumann Benedikt , Kaatz Marcus
Published: April 2023

Battery Electric Vehicles (BEVs) have an increasingly large share of the vehicle market. To ensure a safe and long operation of the mostly large underfloor-mounted traction batteries, they must be developed and tested in advance under realistic conditions. Current standards often do not provide sufficiently realistic requirements for environmental and lifetime testing, as these are mostly based on data measured on cars with an Internal Combustion Engine (ICE). Prior to this work, vibration measurements were performed on two battery-powered electric vehicles and a battery-powered commercial mini truck over various road surfaces and other influences. The measurement data are statistically evaluated so that a statement can be made about the influence of various parameters on the vibrations measured at the battery pack housing and the scatter of the influencing parameters. By creating a load profile based on the existing measurement data, current standards can be questioned and new insights gained in the development of a vibration profile for the realistic testing of battery packs for BEVs.
Caracterización de tricodínidos como peligros biológicos durante el estadio de alevinaje de Clarias gariepinus cultivadas en Cuba
Authors: Rodríguez Vara Eolian María , Prats León Fernando Lucas , Martínez Pérez Mercedes , Silveira Coffigny Raquel , Solórzano Álvarez Ernestina
Published: April 2023

La bioseguridad en la acuicultura se ocupa de la gestión de la sanidad de los animales acuáticos y la reducción de los riesgos a la salud pública asociados con la producción y el consumo de productos acuícolas. Particularmente, las enfermedades son un tema de atención en todo sistema de cría y producción de animales. En la acuicultura cubana, una de las especies ícticas de mayor importancia es el pez gato africano Clarias gariepinus. Esta especie introducida es afectada por protozoos ciliados parásitos de la familia Trichodinidae durante los primeros estadios de vida. El presente trabajo se trazó como objetivo, identificar y caracterizar las especies de tricodínidos que afectan el cultivo de C. gariepinus en la estación de alevinaje La Juventud, Provincia Pinar del Río, Cuba. Dichas especies identificadas y caracterizadas fueron T. heterodentata, T. acuta y T. merciae, las cuales son consideradas peligros biológicos para el cultivo de este pez. Estos resultados constituyen el primer paso para desarrollar un análisis de riesgo que garantice un manejo adecuado de la bioseguridad en las estaciones acuícolas.
Un futuro híbrido en la educación: revisión del avance tecnológico y digital antes de la pandemia por la COVID-19
Authors: Mendoza Karla Ruiz , Castillo Villapudua Karla Yudit , Miramontes Arteaga Ma. Antonia
Published: April 2023

Sin duda el nuevo coronavirus (2019-nCoV, SARS-CoV-2 o COVID-19) ha traído una reconfiguración forzada al modelo de enseñanza educativo en la vida de millones de estudiantes y docentes en el mundo. En este artículo, nos enfocaremos a tratar de revisar el avance tecnológico y digital en el ámbito educativo hasta llegar a los Entornos Personales de Aprendizaje (PLE por sus singlas en inglés), para analizar los alcances y limitaciones entre el proceso de comunicación e interacción entre docente y alumno.  Así mismo se busca comprender sus antecedentes como es el caso del Sistema de Administración de Aprendizaje (LMS por sus singlas en inglés). Lo anterior, nos da una clara visión sobre las diversas opciones -demasiadas- que tienen los docentes de ahora en adelante (refiriéndonos a esta “nueva normalidad”), para desarrollar el proceso de aprendizaje en los docentes.
PALABRAS CLAVE: PLE; LMS; PDI; libros digitales; libros enriquecidos; e-learning, b-learning.
A hybrid future in education: a review of technological and digital advances before the COVID-19 pandemic
ABSTRACT
Undoubtedly the new coronavirus (2019-nCoV, SARS-CoV-2 or COVID-19) has brought a forced reconfiguration of the educational teaching model in the lives of millions of students and teachers in the world. In this article, we will focus on trying to review the technological and digital progress in the educational field until reaching the Personal Learning Environments (PLE), to analyze the scope and limitations between the communication process and interaction between teacher and student. Likewise, it seeks to understand its antecedents, such as the Learning Management System (LMS). The foregoing gives us a clear vision of the various options - too many - that teachers have from now on (referring to this "new normal"), to develop the learning process in teachers.
KEYWORDS: PLE; LMS; PDI; libros digitales; libros enriquecidos; e-learning, b-learning.
La innovación didáctica virtual y su aporte significativo en el proceso de enseñanza-aprendizaje del idioma Portugués
Authors: Luque Cantos Ernesto Vicente , Eguez Alava Gabriel Amable
Published: April 2023

Aprender un nuevo idioma tiene un nivel de dificultad específico para cada estudiante e incluso debe de presentarse una armonía entre los factores asociados a este nuevo aprendizaje. Dentro de estos factores, la metodología aplicada tiene un papel fundamental cuyo impacto se observa en el nivel de conocimientos adquiridos por parte de los estudiantes, por esta razón el presente trabajo tiene el objetivo de proponer una innovación didáctica que vincule a los modelos Blended Learning y ADDIE en la enseñanza del idioma portugués. Para cumplir con el objetivo se desarrollaron sesiones en ambientes virtuales y presenciales con una misma carga horario, estructuradas de manera equilibrada en aspectos teóricos y prácticos, finalmente se comprueba a través de una prueba estadística las diferencias del promedio antes y después de la aplicación del nuevo modelo didáctico. Se verificó de manera satisfactoria como la metodología BL-ADDIE tiene un impacto positivo y significativo en la retención de conocimiento de los estudiantes, a tal punto que la mayoría de ellos alcanza un rendimiento alto en el tema tratado.
PALABRAS CLAVE: Aprendizaje combinado; ADDIE; metodología; rendimiento escolar.
Virtual didactic innovation and its significant contribution to the teaching-learning process of the Portuguese language
ABSTRACT
Learning a new language has a specific level of difficulty for each student and there must even be a harmony between the factors associated with this new learning. Within these factors, the applied methodology has a fundamental role whose impact is observed in the level of knowledge acquired by the students, for this reason the present work has the objective of proposing a didactic innovation that links the Blended Learning and ADDIE models in the teaching of the Portuguese language. To meet the objective, sessions were developed in virtual and face-to-face environments with the same schedule, structured in a balanced way in theoretical and practical aspects, and finally, the differences in the average before and after the application of the new didactic model were verified through a statistical test. It was satisfactorily verified that the BL-ADDIE methodology has a positive and significant impact on students' knowledge retention, to such an extent that most of them achieve a high performance in the subject matter.
KEYWORDS: Blended learning; ADDIE; methodology; school performance.
Gimnasia correctiva para mejorar la tonicidad muscular del adulto mayor
Authors: Loor Zambrano María Estela , Mera Chinga Oscar Egberto
Published: April 2023

La práctica regular de actividades físicas plantea un doble reto, la oportunidad de aprovechar al máximo más años de vida y la necesidad de hacer frente a las condiciones propias en la tercera edad. El principal objetivo, es emplear rutinas de gimnasia correctiva para mejorar la tonicidad muscular. Se utilizó la metodología cuali-cuantitativa, además se empleó el test senior fitness con la versión en español, con un programa de 3 meses de duración, con tres sesiones de entrenamiento por semana, de manera que se pueda obtener una eficacia a lo integrado. El trabajo se fundamentó en un análisis teórico bibliográfico, en relación a las variables obtenidas y en los datos estadísticos; se recurrió a un enfoque científico observacional, al grupo en general; respecto con los valores preceptivos del test aplicado, los cuales evidencian altos índices de fuerza y una admisible flexibilidad y agilidad, no obstante, la capacidad de tenacidad es muy limitada. Se propone generar alianzas de colaboración con los profesionales de salud e instructores de gimnasios con el fin de proporcionar estrategias que permitan trabajar por el mejoramiento de este grupo de personas que necesitan de más actividad física para conservar la funcionalidad y la autonomía.
PALABRAS CLAVES: Flexibilidad; Agilidad; Tonicidad muscular; Gimnasia correctiva.
Corrective gymnastics to improve muscle tone in the elderly
ABSTRACT
The regular practice of physical activities poses a double challenge, the opportunity to make the most of more years of life and the need to cope with the conditions of old age. The main objective is to use corrective gymnastics routines to improve muscle tone. The quali-quantitative methodology was used, in addition to the senior fitness test with the Spanish version, with a 3-month program, with three training sessions per week, in order to obtain an integrated efficacy. The work was based on a bibliographic theoretical analysis, in relation to the obtained variables and statistical data; an observational scientific approach was used, to the group in general; regarding the prescriptive values of the applied test, which evidenced high strength indexes and an acceptable flexibility and agility, however, the tenacity capacity is very limited. It is proposed to generate collaborative alliances with health professionals and gym instructors in order to provide strategies to work for the improvement of this group of people who need more physical activity to maintain functionality and autonomy.
KEYWORDS: Flexibility; Agility; Muscle tone; Corrective gymnastics.
Estrategias para mejorar la resistencia aeróbica de los adolescentes entre 11-14 años
Authors: Mero Avila Manuel Alcides , Zambrano Acosta  Jimmy Manuel
Published: April 2023

La resistencia representa la capacidad física y mental que el cuerpo humano debe tener que soportar delante a un esfuerzo, al igual que la capacidad de recuperarse luego de realizar la actividad programada; mientras sea menor el tiempo de recuperación, se considera que goza de mayor resistencia. El presente estudio se desarrolla ante el planteamiento del objetivo basado en identificar las estrategias deportivas más adecuadas para mejorar la resistencia aeróbica de los adolescentes entre 11 y 14 años de la Escuela Fisco-misional “La dolorosa Fe y Alegría 1” de la ciudad de Manta. El estudio se desarrolla en un espacio metodológico de carácter mixto, es decir, se aplica el enfoque cualitativo y el cuantitativo. La muestra estuvo integrada por 40 estudiantes que representan el 80% del total de la población estudiantil. La investigación integró técnicas e instrumentos que permitieron conocer en un primer test que los estudiantes necesitan mejorar su capacidad de resistencia. Con la aplicación de los ejercicios para mejorar la resistencia aeróbica en un pos-test los resultados evidenciaron una leve mejoría, pero significativa. Se concluye que gracias a la práctica efectiva de deportes como el correr, trotar, caminar se puede mejorar el estado de la resistencia.
PALABRAS CLAVES: Resistencia aeróbica; capacidad física; deporte; estrategias deportivas.
Strategies to improve aerobic endurance in adolescents aged 11-14 years
ABSTRACT
Endurance represents the physical and mental capacity that the human body must have to endure in front of an effort, as well as the capacity to recover after performing the programmed activity, the shorter the recovery time, the greater the endurance. The present study is developed before the approach of the objective based on identifying the most adequate sports strategies to improve the aerobic endurance of adolescents between 11 and 14 years old of the Fisco-misional School "La dolorosa Fe y Alegría 1" of the city of Manta. The study is developed in a methodological space of mixed character, that is to say, the qualitative and quantitative approach is applied. The sample consisted of 40 students representing 80% of the total student population. The research integrated techniques and instruments that allowed to know in a first test that the students need to improve their resistance capacity. With the application of the exercises to improve aerobic endurance in a post-test, the results showed a slight but significant improvement. It is concluded that thanks to the effective practice of sports such as running, jogging, walking can improve the state of endurance.
KEYWORDS: Aerobic endurance; physical capacity; sport; sport strategies.
Estrategia metodológica basada en la resolución de problemas para la enseñanza del razonamiento lógico-matemático
Authors: Cobeña Moreira Saulo Patricio , Cedeño Loor Francisco Omar
Published: April 2023

El aprendizaje de la matemática ha sido cuestionado a lo largo del tiempo, por los resultados, por el proceso, por los factores intervinientes y demás; en todos los escenarios y circunstancias se apunta siempre al trabajo del docente como el determinante, y en el caso del desarrollo del razonamiento lógico se apunta al docente como el gestor del proceso mediante estrategias metodológicas. En la gama existente se resalta las que se relacionan con la resolución de problemas, el Aprendizaje basado en Problemas y la gamificación, como metodología que brinda la oportunidad para pensar, plantear, reformular, estar en contacto con la realidad, compartir criterios, constatar posibilidades, que aunado a otras habilidades más potencian el razonamiento en los estudiantes.
PALABRAS CLAVE: estrategia; razonamiento; lógica; aprendizaje.
Methodological strategy based on problem solving for teaching logical-mathematical reasoning
ABSTRACT
The learning of mathematics has been questioned over time, due to the results of the process, the intervening factors and others; In all scenarios and circumstances, the teachers work is always pointed out as the determining factor, and in the case of development of logical reasoning, the teacher is pointed out as the manager of the process through methodological strategies. In the existing range, those related to the problem solving, problem-based learning and gamification stand out as a methodology that provides the opportunity to think, propose, reformulate, be in contact with reality share criteria, verify possibilities together with other skills, enhance reasoning in students.
KEYWORDS: strategy; reasoning; logic; learning.
Tratamiento de tumor filoide con mastectomía parcial: descripción de un caso
Authors: Mercado González Andrés Felipe , Rodas Toral Sofía Inés , Cevallos Briones Chanthal Dominique , Cardoso Hernández Jorge Alberto
Published: April 2023

El tumor filoide se caracteriza por ser una neoplasia fibroepitelial inusual y generalmente unilateral que puede ser benigna o maligna y afecta en su gran mayoría a mujeres desde los 35 años en adelante. Su diagnóstico está enfocado en la mamografía acompañada de biopsia y ultrasonido para determinar el grado y estadio del tumor. Su tratamiento depende del grado del tumor, pero se ha determinado que el más efectivo es la resección quirúrgica con márgenes libres mínimo de 1cm, puesto que se estima que la misma evita a gran escala la aparición de recidivas, de esta manera presentamos un caso de una mujer de 52 años diagnosticada de un tumor filoide maligno de mama izquierda el cual fue extirpado por medio de una mastectomía parcial con buen pronóstico.
Le coffre et les pantoufles. Intrusion du public et surgissement du privé dans les Mémoires de la fin du XVIe siècle
Authors: Viaud Alicia
Published: April 2023

Si les Mémoires du XVIe siècle. ont pu participer à l’affirmation de l’individu, ils ne donnent que peu à lire l’intimité de celles et de ceux qui les écrivent. Quelques objets domestiques permettent toutefois de cerner les modalités de délimitation réciproque de la sphère privée et de la sphère publique. L’article analyse deux exemples : les pantoufles du clerc de l’huissier Girard dans les Mémoires de Charlotte Duplessis-Mornay, le coffre d’Henri de Mesmes, évoqué dans les Mémoires de celui-ci.
«Plus ung austre estuy ou il y a une chenne…» Les bijoux au sein de l’espace domestique à la Renaissance
Authors: Rohou Julie
Published: April 2023

Objet d’apparat destiné à être vu de tous, le bijou à la Renaissance constitue un capital financier – d’où le soin apporté à sa conservation – mais aussi symbolique puisqu’il est à la fois un objet à soi et un objet pour les autres. En croisant les sources archivistiques, matérielles, iconographiques et textuelles, l’article se centre sur la dimension domestique du bijou en étudiant son mode de rangement dans la domus noble, qui fait souvent vaciller la frontière entre public et privé.
Notes sur l’usage de la musique dans les Œuvres d’André de Rivaudeau
Authors: Hémery Kévin
Published: April 2023

On se propose de réexaminer les maigres indices qui, dans les Œuvres

d’André de Rivaudeau (1566) semblent trahir une présence assez importante de la musique. Les choeurs de la tragédie sainte Aman semblent bien avoir été conçus pour être chantés, mais sur quels airs ? Deux des Complainctes présentent une indication de timbre, mais si le premier correspond bien à un air connu, le second semble indiquer une circulation des Vers françois de La Boétie bien avant leur publication par Montaigne.
Reflets du Bransle des Cieux ou Simulacre de l’Harmonie terrestre ? Musique et danse en Navarre au temps d’Henri IV
Authors: Pédelaborde Cindy
Published: April 2023

Both revered and abhorred, music and dancing were inherent to the princes of the blood’s daily lives, from their upbringing to their exercise of power. They played a key part at the Court of Navarre, cradle of the Bourbon dynasty. While broadening the scope of this issue to the kingdom of France, we’ll seek to question the impact of this Bearnese legacy under the reign of Henri IV, and to analyse how these arts reflect the political and religious thinking of his time.
Colovesical fistula due to diverticular disease of sigmoid colon: a case report
Authors: Doan Phuoc Vung , Nguyen Huu Tri
Published: April 2023

Background Nowadays, diverticular disease of the colon is an increasingly common diagnosis and is a leading cause of colovesical fistula. This disease causes many complications affecting quality of life even causing death. Case report We report a 42-year-old man who was successfully treated for a colovesical fistula due to diverticulitis of the sigmoid colon presenting with septic shock. Conclusions Treatment of colovesical fistula due to diverticular disease requires control of infection and surgical reconstruction of gastrointestinal tract and closure of bladder fistula.
Key words: diverticular disease, sigmoid colon, colovesical fistula
Situation of plastic waste management and health conditions of people in Hai Duong coastal community of Thua Thien Hue province in 2020
Authors: Ton That Canh Tri , Nguyen Van Thanh Nhan , Nguyen Le Hanh Nguyen , Hoang Thi Binh Minh , Nguyen Dac Hoang Long , Dang Thi Anh Thu
Published: April 2023

Background: Unmanaged plastic waste will affect the environment and human health. The study was conducted to describe the current situation of plastic waste management and the health conditions related to plastic waste of people in Hai Duong commune, Central Vietnam, in 2020. Methodology: A cross-sectional descriptive study using a structured questionnaire was carried out on 291 people over 18 years old in Hai Duong commune, Huong Tra town, from September to October, 2020. Results: The amount of plastic waste accounted for 16.5% of the total volume of collected waste. The main forms of plastic waste treatment included collecting at gathering places (87.3%), selling scrap (60.8%), or burning (19.9%). In most cases,
plastic bags were collected at the gathering place (90.4%), washed for reuse (45.4%), and burned (14.8%). The notable weakness of garbage collection and transportation was that residents did not sort out different types of garbage (29.6%), and littered indiscriminately in public places with little traffic at night (11.3%). Health conditions related to over-plastic waste use included headache (9.6%), rash (4.8%), cardiovascular disease (5.2%), and gastrointestinal disease (3.4%). Conclusion: The management of plastic waste in general and plastic bags in particular is still inadequate. It could be seen that if a lot of plastic products were used and the waste was not handled properly, it would cause much harm to human health. Therefore, appropriate policies need to be implemented to improve local management of plastic waste as well as awareness and
effective practices regarding garbage disposal.
Key words: Plastic waste, nylon bags, health conditions, Hai Duong commune
Characterization of antibiotic resistance and genotyping of Helicobacter pylori isolates in patients with gastroduodenal disease
Authors: Nguyen Thi Khanh Linh , Tran Thi Nhu Hoa , Phan Van Bao Thang , Phan Trung Nam , Paglietti Bianca , Le Van An
Published: April 2023

Background: In this study, we assessed the status of antibiotic resistance of H. pylori isolates to antimicrobial agents at Hospital of Hue University of Medicine and Pharmacy in Central Vietnam and identified the underlying molecular mechanisms related to tetracycline and amoxicillin resistance. In addition, the cagA, cagE, cagT, vacA, iceA genotypes of H. pylori strains were investigated to predict clinical outcomes. Materials
and methods: H. pylori was successfully cultured in 52 patients with different gastrointestinal disorders at the Hospital of Hue University of Medicine and Pharmacy in Central Vietnam. The minimum inhibitory concentrations (MICs) of five antimicrobials; clarithromycin (CLR), metronidazole (MTZ), levofloxacin (LE), amoxicillin (AMX) and tetracycline (TE) were determined by the E-test method. Genetic determinants of AMX
and TE resistance were identified with the polymerase chain reaction (PCR), followed by sequencing and gene analysis. Allelic variants of cagA, cagE, cagT, vacA, iceA were identified by the PCR. Results: The resistance to CLR, MTZ, LE, AMX, and TE were 90.4%, 86.5%, 65.4%, 40.4% and 0%, respectively. Multidrug resistance was observed in 88.5% of the isolates investigated. Several known AMX resistance mutations were identified in PBP1A (A369T, V374L, S543R, T556S, N562Y), whereas a known mutation in 16S rRNA (A926G) was detected in strains with higher MIC level (TE MICs of 0.25 and 0.5 mg/L). The cagA, cagE and cagT genotypes were found together in 46 isolates (88.5%), vacAs- region genotype in 51 (98.1%, predominantly vacAs1), vacAmregion genotype in all strains studied (vacAm1 - 51.9%, vacAm2 - 40.4%, vacAm1 and vacAm2 - 7.7%), iceA1 in 22 (42.3%) and iceA2 in 20 (38.5%) of strains. The allelic variant vacAs1m1 was prominent (57.4%), and vacAs1m2 (42.6%). Conclusion: Overall, resistance rates to CLR, MTZ, LE and AMX were high in H. pylori from Central Vietnam, except for TE, which serves as a foundation for developing local guidelines for more effective therapeutic strategies. Neither the single genes nor the combination of genes was significantly helpful in predicting the clinical outcome of H. pylori infection in patients in our study.
Key words: H. pylori, antibiotic resistance, genotype.
Heath risk behaviours among adolescents in central of Vietnam: a cross sectional study
Authors: Ton Nu Minh Duc , Tran Thi Hang , Ha Van Anh Bao , Ho Thi Thuy Trang , Mai Ba Hai , Tran Thi Nguyet , Vo Thi Diem Binh , Hoang Thi Viet Ha , Nguyen Vu Quoc Huy , Nguyen Thi Anh Phuong
Published: April 2023

Background: Adolescence is vulnerable subjects and faces many risks that greatly impact their health and development in the future, but adolescents are not really getting the proper care from the health care system. This study aimed to examine the prevalence of health risk behaviours among adolescents in Thua Thien Hue Province, Vietnam, and to determine related factors to adolescents’ health risk behaviours. Materials and Methods: A descriptive cross-sectional study was conducted on 934 adolescents in Thua Thien Hue province, with a multi-stage sampling method. The Youth Risk Behaviour Survey of the Center for Disease Control and Prevention was used for data collection in this study. The SPSS 20.0 software was used to analyse data. Results: The proportion of overweight-obesity adolescents accounted for 14.6%. The prevalence of adolescent
bullying was 14.0%, the higher the adolescent high, the lower the risk of bullying (OR=0.981, p=0.03). The proportion of smoking was low (2.8%), while the alcohol use rate accounted for 10.0%. Adolescents in high school have a higher risk of smoking and alcohol use than those in secondary school. The proportion of adolescents who attempted suicide was slightly high (16.0%). Adolescents who felt lonely, whose parents did not know what the adolescent did in their free time, and does not respect them were several factors that increase suicide intention. Conclusions: School adolescent violence, overweight-obese status, alcohol use, smoking, and suicide intention are health problems occurring among adolescents in Thua Thien Hue. Besides, the feeling of loneliness increases the risk of suicide intention. Adolescents need to receive proper attention from their parents, as well as the healthcare system.
Key words: Adolescent; health-risk behaviours; Thua Thien Hue province
Serotype distribution and antibiotic resistance of Streptococcus agalactiae isolated from patients in Hue Central Hospital
Authors: Nguyen Thi Chau Anh , Ung Thi Thuy , Nguyen Thi Tuyen , Nguyen Phi Hung , Vo Thi Phuong Nhi , Mai Van Tuan , Le Van An
Published: April 2023

Group B streptococcus (GBS) infections are still the leading cause of invasive infections in neonates, specically they also seriously cause mortality and morbidity with underlying diseases in adults. Curently, there are ten GBS serotypes (Ia, Ib, and II-IX) and the resistance characteristic of GBS is important to clinical treatment. Objectives and methods: 30 clinical isolates of GBS were obtained from patients in Hue Central Hospital, Vietnam, from January 2016 until Jun 2019. Then the isolated GBS was conducted antimicrobial susceptibility test to determine the antibiotic resistance and serotypes by a multiplex PCR method. Results: GBS strains were resistant to tetracycline (100%), azithromycin (82.6%), erythromycin (80%) and clindamycin (80%). Resistance rates were lower with levofloxacin (45%), chloramphenicol (52.6%) and ceftriaxone (6.7%) whereas resistance was not observed in ampicillin, vancomycin and penicillin G. The distribution rate of serotype V (66.67%) was higher than type I (33.33%). Conclusions: Antibiotic resistance characteristics of GBS in samples are mostly familiar with other studies: β -lactams and vancomycin were the most susceptible antibiotics to GBS, the resistance rate in second line drug like clindamycin and erythromycin were high but there were large differences between studies. This study determined two GBS serotypes of Ia and V among isolated strains.
Key words: Streptococcus agalactiae, GBS, antibiotic resistance, serotype.