Dual-Slope Path Loss Model for Integrating Vehicular Sensing Applications in Urban and Suburban Environments.

The development of intelligent transportation systems (ITS), vehicular ad hoc networks (VANETs), and autonomous driving (AD) has progressed rapidly in recent years, driven by artificial intelligence (AI), the internet of things (IoT), and their integration with dedicated short-range communications (DSRC) systems and fifth-generation (5G) networks. This has led to improved mobility conditions in different road propagation environments: urban, suburban, rural, and highway. The use of these communication technologies has enabled drivers and pedestrians to be more aware of the need to improve their behavior and decision making in adverse traffic conditions by sharing information from cameras, radars, and sensors widely deployed in vehicles and road infrastructure. However, wireless data transmission in VANETs is affected by the specific conditions of the propagation environment, weather, terrain, traffic density, and frequency bands used. In this paper, we characterize the path loss based on the extensive measurement campaign carrier out in vehicular environments at 700 MHz and 5.9 GHz under realistic road traffic conditions. From a linear dual-slope path loss propagation model, the results of the path loss exponents and the standard deviations of the shadowing are reported. This study focused on three different environments, i.e., urban with high traffic density (U-HD), urban with moderate/low traffic density (U-LD), and suburban (SU). The results presented here can be easily incorporated into VANET simulators to develop, evaluate, and validate new protocols and system architecture configurations under more realistic propagation conditions.

Herramientas digitales y aprendizaje cooperativo en docentes de educación inicial de Lima Metropolitana / Digital tools and cooperative learning in initial education teachers in Metropolitan Lima / Ferramentas digitais e aprendizagem cooperativa em professores de educação inicial em Lima Metropolitana

La investigación tuvo como objetivo determinar la relación entre el manejo de herramientas digitales y el aprendizaje cooperativo en docentes de Educación Inicial de Lima Metropolitana, 2023. El enfoque es cuantitativo de alcance descriptivo-correlacional, la muestra estuvo conformada por 230 docentes de Educación Inicial provenientes de 12 instituciones educativas. A este grupo se le aplicó dos cuestionarios: uno para medir las herramientas digitales y otro para el aprendizaje cooperativo: confiabilidad (0.98; 0,87). En función de los resultados, para las herramientas digitales se indicó que el 48.3% (111) se ubica en el nivel medio y el 40% (92) en el nivel alto; para el aprendizaje cooperativo, el 95.7% (220) se ubica en el nivel alto; además, el p-valor del coeficiente de relación fue rho= 0.024. El estudio concluyó que existe relación entre las herramientas digitales y el aprendizaje cooperativo en docentes de Educación Inicial en Lima Metropolitana.

The objective of the research was to determine the relationship between the management of digital tools and cooperative learning in Initial Education teachers of Metropolitan Lima, 2023. The approach is quantitative with a descriptive-correlational scope, the sample consisted of 230 Initial Education teachers from 12 educational institutions. Two questionnaires were applied to this group: one to measure digital tools and another for cooperative learning: reliability (0.98; 0.87). Based on the results, for digital tools it was indicated that 48.3% (111) are located at the medium level and 40% (92) at the high level; for cooperative learning, 95.7% (220) are located at the high level; In addition, the p-value of the relationship coefficient was rho= 0.024. The study concluded that there is a relationship between digital tools and cooperative learning in Initial Education teachers in Metropolitan Lima.

O objetivo da pesquisa foi determinar a relação entre o uso de ferramentas digitais e a aprendizagem cooperativa em professores da Educação Inicial da Região Metropolitana de Lima, 2023. A abordagem é quantitativa com escopo descritivo-correlacional, a amostra foi composta por 230 professores da Educação Inicial de 12 instituições de ensino. Foram aplicados dois questionários a esse grupo: um para mensurar ferramentas digitais e outro para aprendizagem cooperativa: confiabilidade (0,98; 0,87). Com base nos resultados, para as ferramentas digitais foi indicado que 48,3% (111) estão localizadas no nível médio e 40% (92) no nível alto; para a aprendizagem cooperativa, 95,7% (220) estão no nível alto; Além disso, o valor p do coeficiente de relacionamento foi rho= 0,024. O estudo concluiu que existe uma relação entre ferramentas digitais e aprendizagem cooperativa em professores de Educação Infantil na Região Metropolitana de Lima.

Cooperative behavior in adolescents: a contribution of empathy and emotional regulation?

Aim: This study aims to identify different levels of empathy and emotional regulation along adolescent years and their relationship with cooperative behavior. Methods: Eighty healthy males were divided into four age groups: 20 Early Adolescents, 20 Middle Adolescents, 20 Late Adolescents and 20 Adults. Participants responded to empathic and emotional regulation scales, then were assigned to an unknown partner to perform the prisoner's dilemma paradigm. Results: The statistical analyses allowed to distinguish the groups on the basis of the components making up the two scales: scores on the Perspective Taking component were higher for Adults and Late Adolescents participants than for Middle Adolescents and Early Adolescents groups (p < 0.05); scores on the Personal Distress component were higher for Early Adolescents group than for Late Adolescents and Middle Adolescents groups (p < 0.05); scores on the Difficulties engaging in goal directed behavior component were higher for Middle Adolescents and Early Adolescents groups than for Adults group (p < 0.05). We observed differences between groups (p < 0.001) with higher number of cooperation responses in Adults compared to Middle Adolescents (p < 0.05) and Early Adolescents groups (p < 0.001). Discussion: These findings suggest that the cooperative behavior changes during the different stages of adolescence seem to be related to the development of empathy and emotional regulation components.

"Measuring the health and fiscal outcomes of solid waste management operations by intergovernmental arrangements: The case of public consortia in Brazil".

This study estimates the health-related and public expenditure impacts of the solid waste services provided by public consortia in Brazilian Municipalities from the enactment of Public Consortia law (2005) to 2019. To conduct the analysis, we applied the econometric method of staggered difference-in-differences to publicly available datasets at the municipality level. The results show that the operation of solid waste services by public consortia had statistically significant effects in reducing hospitalizations caused by Schistosomiasis, Diarrhea/gastroenteritis (up to 5 years age) and other intestinal diseases. The results also indicate a positive impact on the reduction of environmental expenses in treated municipalities, supporting the idea that a Solid Waste Consortium can serve as a local coordinator and improve health and fiscal indicators simultaneously. The findings provide quantitative evidence that policymakers at the local and regional level can use to better understand the benefits of adhering to public consortia when preparing new investments and operation developments for this sector. This paper contributes to the literature of applied research in solid waste by shedding light on the underexplored theme of the intergovernmental cooperative arrangements, which can be instrumental in accelerating and enhancing the development of solid waste services.

Decision-making analysis in cooperative environments for decentralized cognitive radio networks.

Currently, there are saturated frequency bands that affect the quality of service for new users. Cognitive radio provides an alternative solution to this problem through dynamic spectrum access. However, the solutions proposed in the current literature are focused on a centralized network and do not allow demonstrating the behavior in a multi-user environment, much less the effect that cooperation between secondary users can have. This article establishes a decision-making model for the best spectral opportunity selection with a cooperative approach in decentralized cognitive radio networks and contrasts its results with three multi-criteria decision-making algorithms: SAW, TOPSIS, and VIKOR. So, this research suggests a cooperative decision-making model based on four main modules. (1) a collaborative module for the exchange of information between SU; (2) a module for PU characterization; (3) a module of the probability of SU arrival; and (4) the SO feedback selection module. The results are obtained through simulations fed with experimental spectral occupancy data captured in a measurement campaign. Handoff and throughput were used as evaluation metrics, along with five levels of collaboration: 10%, 20%, 50%, 80%, and 100%, and eight different scenarios based on the type of network: GSM and Wi-Fi, the application type: real-time and best-effort, and the level of traffic: high and low. The contribution of this study lies in the fact that no current work includes the following relevant aspects for an adequate validation and evaluation of this proposal: First, the consideration of a decentralized cognitive radio network; second, the decision-making with cooperative strategies; third, different techniques for SO selection; fourth, the validation and evaluation with experimental spectral occupancy data captured in measurement campaigns; finally, the performance analysis in diverse networks, traffic levels, and types of applications.

Searching for a sustainable economy: Work, cooperation, and territorial solutions.

BACKGROUND: This article discusses expanded governance of territorial issues as the basis for a sustainable way of producing and commercializing, as well as the relevance of work analysis within this governance. This discussion is developed from the Functionality and Cooperation Economy approach and from Brazilian experiences of organic food production and community-based solid waste management. OBJECTIVE: To identify and analyze the relationship between territorial issues and work activities in initiatives that seek territorial solutions for food and waste management in order to reflect on a sustainable economic transition and its challenges. METHODS: This article presents a reflection, a posteriori, concerning the follow-up of two initiatives that seek a sustainable economy and that, facing territorial issues, adopted different economic strategies. The field of research, by which the intended reflections are guided, originated from two intervention projects conducted by two different research/intervention groups. RESULTS: Our study highlights how the central focus on the effects of work in a territory can support the development of reflexivity and, consequently, the production of transversal cooperation and the sharing of material and immaterial resources, thereby leading to multifunctional territorial solutions. CONCLUSION: This study presents how the co-construction of multifunctional territorial solutions, involving cooperation among different actors, can be developed by an analysis of the respective activities involved. This analysis confers centrality to real work in order to feed the governance devices and enable the development of relationships of trust, necessary for living and producing in harmony, along with the construction of conventions and dynamic cooperation.

A comprehensive sustainable development framework; community capitals and village-cooperative initiative / Um quadro abrangente de desenvolvimento sustentável; capitais comunitários e iniciativa aldeia-cooperativa

Considering the cooperative sector capabilities in organizing rural people, primarily focusing on empowering manpower and adopting a sustainable approach to basic resources (water and soil), village-cooperative initiative has emerged as a new concept by registering and forming 4565 new cooperatives in Iran's rural regions. The present research which was conducted in two qualitative and quantitative phases designed a new model by integrating the new village-cooperative approach along with the sustainable livelihood's framework theory. The study sample of the qualitative phase included 32 theorists of the village-cooperative initiative. To analyze the data, the grounded theory and three-step process of open coding, axial coding and selective coding were used using MAXqda18 software. Finally, a paradigm model was designed whose most important components included causal conditions (shocks and seasonal conditions), contextual conditions (trends and governmental support), intervening conditions (control and market development), central categories (sustainable livelihoods with a village- cooperative approach), strategies (coping and adaptation) and consequences (creating jobs, establishing cooperatives, supporting smart agriculture and strengthening social capital). The statistical quantitative phase population consisted of cooperatives members in the village-cooperative initiative (N=405), being selected through Cochran's formula with proportional sampling method summing up to198 people from 5 provinces. The data collection tool was a researcher-made questionnaire whose validity and reliability were confirmed. The Bayesian structural equation modeling was used to analyze the data. The results of the research quantitative phase showed that the variables of financial capital, physical capital, social capital, coping and adaptation strategies, human capital and natural capital were the most effective variables on village-cooperative initiative members' sustainable livelihoods, respectively. Finally, a hybrid model based on the qualitative and quantitative studies was designed and suggestions were made; for instance, the creation of suitable grounds for off-farm activities such as rural industries and ecotourism.

Considerando as capacidades do setor cooperativo na organização da população rural, focando principalmente na capacitação de mão de obra e na adoção de uma abordagem sustentável para os recursos básicos (água e solo), a iniciativa de cooperativa de aldeia surgiu como um novo conceito ao registrar e formar 4.565 novas cooperativas nas regiões rurais do Irã. A presente pesquisa, que foi conduzida em duas fases qualitativas e quantitativas, projetou um novo modelo integrando a nova abordagem cooperativa de aldeia junto com a teoria da estrutura de subsistência sustentável. A amostra do estudo da fase qualitativa incluiu 32 teóricos da iniciativa vila-cooperativa. Para analisar os dados, a teoria fundamentada e o processo de três etapas de codificação aberta, codificação axial e codificação seletiva foram usados o software MAXqda18. Finalmente, um modelo de paradigma foi desenhado, cujos componentes mais importantes incluíam condições causais (choques e condições sazonais), condições contextuais (tendências e apoio governamental), condições intervenientes (controle e desenvolvimento de mercado), categorias centrais (subsistência sustentável com uma abordagem cooperativa de aldeia), estratégias (enfrentamento e adaptação) e consequências (criação de empregos, estabelecimento de cooperativas, apoio à agricultura inteligente e fortalecimento do capital social). A população da fase quantitativa estatística consistiu de cooperados na iniciativa vila-cooperativa (N = 405), sendo selecionados através da fórmula de Cochran com método de amostragem proporcional totalizando 198 pessoas de cinco províncias. A ferramenta de coleta de dados foi um questionário elaborado pelo pesquisador cuja validade e confiabilidade foram confirmadas. A modelagem de equações estruturais bayesianas foi utilizada para analisar os dados. Os resultados da fase quantitativa da pesquisa mostraram que as variáveis de capital financeiro, capital físico, capital social, estratégias de enfrentamento e adaptação, capital humano e capital natural foram as variáveis mais eficazes na subsistência sustentável dos membros da iniciativa cooperativa de aldeia, respectivamente. Finalmente, um modelo híbrido baseado nos estudos qualitativos e quantitativos foi desenhado e sugestões foram feitas; por exemplo, a criação de terrenos adequados para atividades não agrícolas, como indústrias rurais e ecoturismo.

Saberes en juego en una práctica extensionista. Construcciones comunes entre una cooperativa integrada por personas privadas de libertad y acompañantes universitarixs

Tomando como insumo la etnografía realizada con objeto de la escritura de la tesis, pero realizando el recorte que demanda un artículo, me centraré en reconstruir tres puntos que dan cuenta de aspectos vinculados a la dimensión comunicativa, y que resultan ejemplos paradigmáticos de dimensiones constitutivas del vínculo entre cooperativistas y acompañantes, los cuales nos permiten advertir las huellas institucionales de la cárcel y la universidad en el modo de trabajo conjunto con la intención de advertir cómo se articulan, potencian o complejizan la relación en el marco de la experiencia extensionista. Asimismo, en las reuniones de producción los saberes jerarquizados se invertían en relación a los días de reunión general, y también el rol de lxs sujetxs. Lxs cooperativistas detentaban cierta autoridad en estos días, marcándose una asimetría en torno al saber que se construía de modo situacional y contextual - los días de producción primaban los saberes en torno a la tela, a diferencia de los días de reunión general, en los que primaba la palabra-, lo cual nos permite entender que los conocimientos que se ponen a dialogar deben ser comprendidos en vínculo con sus condiciones de enunciación y según el contexto. Son las diferencias las que se constituyen en punto de contacto y que deben hacerse inteligibles para el diálogo y trabajo con otrxs, las cuales pueden ser entendidas como saberes prácticos que se entrelazan con otros saberes en la experiencia, o en el "mientras tanto" se buscan otros diálogos de saberes conceptuales.

Tomando como aporte a etnografia realizada para a redação da tese, mas fazendo o recorte que um artigo exige, vou me concentrar em reconstruir três pontos que dão conta de aspectos relacionados à dimensão comunicativa, e que são exemplos paradigmáticos de dimensões constitutivas do vínculo entre cooperados e acompanhantes, que permitem perceber os traços institucionais da prisão e da universidade no modo de trabalho conjunto com a intenção de perceber como a relação se articula, se fortalece ou se complexifica no âmbito da experiência de extensão. Da mesma forma, nas reuniões de produção, os saberes hierarquizados se inverteram em relação aos dias da assembléia geral, e também o papel dos sujeitos. Os cooperados detinham certa autoridade nesses dias, marcando uma assimetria em torno do conhecimento que se construía de forma situacional e contextual - os dias de produção eram dominados pelo conhecimento sobre o tecido, ao contrário dos dias da reunião geral, quando a palavra prevalecia -, o que nos permite compreender que os saberes que se colocam em diálogo devem ser entendidos em conexão com suas condições de enunciação e de acordo com o contexto. São as diferenças que constituem o ponto de contato e que devem ser tornadas inteligíveis para o diálogo e o trabalho com os outros, que podem ser entendidas como saberes práticos que se entrelaçam com outros saberes na experiência, ou no "enquanto" buscam outros diálogos de conhecimento conceitual.

Taking as input the ethnography carried out for the purpose of writing the thesis, but making the cut that an article demands, I will focus on reconstructing three points that account for aspects related to the communicative dimension, and that are paradigmatic examples of dimensions constitutive of the link between cooperative members and companions, which allow us to notice the institutional traces of the prison and the university in the way of joint work with the intention of noticing how the relationship is articulated, strengthened or made more complex within the framework of the extension experience. Likewise, in the production meetings, the hierarchical knowledge was inverted in relation to the days of the general meeting, and also the role of the subjects. The cooperative members held a certain authority in these days, marking an asymmetry around the knowledge that was built in a situational and contextual way - the days of production prevailed the knowledge around the fabric, unlike the days of general meeting, in which the word prevailed-, which allows us to understand that the knowledge that is put into dialogue must be understood in connection with its conditions of enunciation and according to the context. It is the differences that constitute the point of contact and that must be made intelligible for dialogue and work with others, which can be understood as practical knowledge that is intertwined with other knowledge in experience, or in the "meanwhile" They look for other dialogues of conceptual knowledge.

Cooperative Multiband Spectrum Sensing Using Radio Environment Maps and Neural Networks.

Cogitive radio networks (CRNs) require high capacity and accuracy to detect the presence of licensed or primary users (PUs) in the sensed spectrum. In addition, they must correctly locate the spectral opportunities (holes) in order to be available to nonlicensed or secondary users (SUs). In this research, a centralized network of cognitive radios for monitoring a multiband spectrum in real time is proposed and implemented in a real wireless communication environment through generic communication devices such as software-defined radios (SDRs). Locally, each SU uses a monitoring technique based on sample entropy to determine spectrum occupancy. The determined features (power, bandwidth, and central frequency) of detected PUs are uploaded to a database. The uploaded data are then processed by a central entity. The objective of this work was to determine the number of PUs, their carrier frequency, bandwidth, and the spectral gaps in the sensed spectrum in a specific area through the construction of radioelectric environment maps (REMs). To this end, we compared the results of classical digital signal processing methods and neural networks performed by the central entity. Results show that both proposed cognitive networks (one working with a central entity using typical signal processing and one performing with neural networks) accurately locate PUs and give information to SUs to transmit, avoiding the hidden terminal problem. However, the best-performing cognitive radio network was the one working with neural networks to accurately detect PUs on both carrier frequency and bandwidth.

Effects of Semisupervised Exercise Training on Health Outcomes in People With Lung or Head and Neck Cancer: Protocol for a Randomized Controlled Trial.

BACKGROUND: Lung or head and neck cancers are known for their high prevalence and mortality rates. Chemotherapy and radiotherapy are usually recommended as cancer treatment for these malignancies; however, they can negatively impact both the physical and mental status of patients. Hence, it is reasonable to consider resistance and aerobic exercise training to prevent these negative health outcomes. Further, several factors prevent patients from attending outpatient exercise training programs, and, therefore, a semisupervised home-based exercise training program may be seen as a well-accepted alternative. OBJECTIVE: The aim of this study will be to investigate the effects of a semisupervised home-based exercise training program on physical performance, body composition, and self-reported outcomes; changes in the initial cancer treatment dose prescribed; number of hospitalizations at 3, 6, and 9 months; and 12-month survival in people with primary lung or head and neck cancer. METHODS: Participants will be randomly allocated to the training group (TG) or control group (CG). The TG will undergo semisupervised home-based resistance and aerobic exercise training throughout their cancer treatment. The resistance training will be performed using elastic bands (TheraBand) twice a week. The aerobic training (ie, brisk walk) will be performed for at least 20 minutes per day outdoors. The equipment and tools used during the training sessions will be provided. This intervention will start the week before treatment commencement, will be performed throughout the duration of the treatment, and will continue for 2 weeks after treatment completion. The CG will undergo usual care (ie, cancer treatment with no formal exercise prescription). Assessments will take place 2 weeks before the beginning of the usual cancer treatment and 2 weeks after treatment completion. The measures of physical function (peripheral muscle strength, functional exercise capacity, and physical activity), body composition, and self-reported outcomes (symptoms of anxiety and depression, health-related quality of life, and symptoms related to the disease and treatment) will be collected. We will report on any change in the initial cancer treatment dose prescribed; number of hospitalizations at 3, 6, and 9 months; and 12-month survival. RESULTS: In February 2021, the clinical trial registration was approved. Recruitment and data collection for the trial are ongoing (as of April 2023, 20 participants had already been randomized), and findings of this study are likely to be published late in 2024. CONCLUSIONS: This exercise training as a complementary treatment for patients with cancer is likely to promote positive effects on the health outcomes assessed, over and above any change in the CG, and prevent the reduction of initial cancer treatment dose prescribed. If these positive effects are shown, they will likely impact long-term outcomes such as hospitalizations and 12-month survival. TRIAL REGISTRATION: Brazilian Clinical Trials Registry (ReBEC) RBR-5cyvzh9; https://ensaiosclinicos.gov.br/rg/RBR-5cyvzh9. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): PRR1-10.2196/43547.

Circularity measurement of external resource flows in companies: The circular flow tool.

Unlike the linear model "take-make-use-dispose", the circular economy model "grow-make-use-restore" intends to potentiate material and energy flows within a system with the premise of increasing environmental gains. Moreover, circular economy practices can be alternatives for closing loops in companies from different sectors, with material-, waste-, and energy-related initiatives towards promoting greater internal value-adding. However, the lack of consistent tools for measuring circularity of processes and companies is a gap yet to be covered. To tackle this gap, this paper's aims are: (i) to build a new tool, called Circular Flow, for generating greater internal value and competitive advantage in organizations and identify potential circular economy-related opportunities for closing loops based on external flows, (ii) to apply the tool in a case study, an organization that presents material and energy (electricity) flows and exchanges with other organizations, and (iii) to discuss the integration and potential opportunities for the tool in organizations. The novel, Circular Flow, tool is based on a set of circular graph visualizations, and quantitative circularity indicators. For the graphical visualization, the software tool R (using the Circlize package) was used. The graphs aid the visualization of several interconnected pieces of information, allowing to show all quantitative flows of inputs and outputs, intuitively showing the paths (origin and destination of each flow) within the boundaries of the system under study. The quantitative indicators, e.g. Circularity of the organization (Circ p) and Circularity of each process (Circ o), show a circularity index ranging from 0% to 100%, which can be assessed at different levels. The criteria to select these indicators are based on quantities of inputs and outputs regarding mass and electricity. The tool has been applied in a case study of a rural property in southern Brazil, which region holds a tradition for milk and pig farming. The use of the tool showed the involvement of the rural property with its neighbors and with an agroindustrial cooperative. Keeping these flows within the system may increase environmental gains by reducing transportation, using renewable sources of energy, reducing costs, and boosting the generation of jobs and income in the region due to new market opportunities and business models.

Influencia de los tipos de agrupamiento en la competencia social de futuros docentes de educación física al implementar el aprendizaje cooperativo / Influência dos tipos de agrupamento na competência social dos futuros professores educação física na implementação da aprendizagem cooperativa / Influence of the types of grouping on the social competence of future physical education teachers when implementing cooperative learning

Resumen El objetivo de esta investigación fue comprobar la incidencia del aprendizaje cooperativo (AC) en la competencia social en función de los tipos de agrupamiento del alumnado. Participaron 53 estudiantes de tercer curso del Grado de Magisterio Educación Primaria de la mención de Educación Física (EF). Se utilizó un diseño cuasi-experimental donde se implementó una intervención durante cuatro meses con medidas pre-test y post-test a través de un cuestionario sociométrico. El tratamiento de datos se realizó mediante el software Sociomet. Los resultados obtenidos indican que los seminarios que han utilizado agrupamientos libres y heterogéneos han obtenidos mejores puntuaciones de percepción de competencia social que el seminario organizado en subgrupos homogéneos. Así pues, se considera que el criterio de homogeneidad debe ser descartado a la hora de implementar el AC en EF. (AU)

Resumo O objetivo desta pesquisa foi verificar a incidência da aprendizagem cooperativa (LC) na competência social em função dos tipos de agrupamento de alunos. Participaram 53 alunos do terceiro ano do Ensino Fundamental da Licenciatura da menção à Educação Física (EF). Foi utilizado um desenho quase experimental onde foi implementada uma intervenção durante quatro meses com medidas pré-teste e pós-teste através de um questionário sociométrico. O processamento dos dados foi realizado por meio do software Sociomet. Os resultados obtidos indicam que os seminários que utilizaram agrupamentos livres e heterogêneos obtiveram melhores pontuações para a percepção de competência social do que o seminário organizado em subgrupos homogêneos. Assim, considera-se que o critério de homogeneidade deve ser descartado na implementação da AC em EF. (AU)

Abstract The objective of this research was to verify the incidence of cooperative learning (CL) in social competence depending on the types of grouping of students. Fifty-three (53) third-year students of the Primary Education Teaching Degree participated with the mention of Physical Education (PE). A quasi-experimental design was used where intervention was implemented for four months with pre-test and post-test measures through a sociometric questionnaire. Data processing was performed using Sociomet software. The results obtained indicate that the seminars that have used free and heterogeneous groupings have obtained better scores for the perception of social competence than the seminar organized in homogeneous subgroups. Thus, it is considered that the homogeneity criterion should be discarded when implementing CA in PE. (AU)

PET-Saúde interprofissionalidade: contribuições, barreiras e sustentabilidade da Educação Interprofissional / PET-Saúde interprofissionalidade and interprofessional education: contributions, barriers and sustainability / PET-Salud interprofesionalidad: contribuciones, barreras y sostenibilidad de la educación interprofesional

Resumo Objetivou-se analisar as contribuições e barreiras enfrentadas pelo Programa de Educação pelo Trabalho para a Saúde (PET-Saúde) Interprofissionalidade, bem como debater elementos necessários à sustentabilidade da Educação Interprofissional (EIP). Pesquisa qualitativa desenvolvida em três unidades acadêmicas de uma instituição pública de ensino superior. Os dados foram coletados pelo Google Meet e analisados pela técnica da análise de conteúdo. Emergiram três categorias temáticas: contribuições do PET-Saúde Interprofissionalidade para a indução de mudanças na formação em Saúde, barreiras que afetaram seu desempenho e sustentabilidade da EIP. A análise indica que O PET-Saúde Interprofissionalidade foi uma experiência importante para pautar o debate da EIP nos cursos de graduação e nos serviços de Saúde. As experiências acumuladas nesse programa constituem um arcabouço que não pode ser desprezado e deverá ser lapidado para fundamentar estratégias sustentáveis que considerem a interprofissionalidade como abordagem na reorientação da formação e qualificação da atenção à saúde.(AU)

Abstract The aim of this study was to explore the contributions of and barriers faced by the Education through Work for Health Program-Interprofessional Collaboration Program (PET-Saúde Interprofissionalidade) and debate key elements for the sustainability of interprofessional education (IPE). We conducted a qualitative study in three academic units of a public higher education institution. The data were collected via Google Meet and analyzed using content analysis. Three categories emerged during the analysis: contributions of the PET-Saúde Interprofissionalidade to the induction of changes in health training, barriers affecting performance, and sustainability of IPE. The findings indicate that the PET-Saúde Interprofissionalidade made important contributions to pushing forward the debate about IPE in undergraduate degrees and health services. The experiences accumulated during the program provide a framework whose potential should not be underestimated and should be refined to lay the foundation for sustainable strategies that incorporate interprofessional collaboration as an approach to reorienting health training.(AU)

Resumen El objetivo fue analizar las contribuciones y barreras enfrentadas por PET-Salud Interprofesionalidad, así como discutir elementos necesarios para la sostenibilidad de la Educación Interprofesional (EIP). Investigación cualitativa desarrollada en tres unidades académicas de una institución pública de enseñanza superior. Los datos fueron colectados por Google meet y analizados por la técnica de análisis de contenido. Surgieron tres categorías temáticas: contribuciones de PET-Salud Interprofesionalidad para la inducción de cambios en la formación en salud, barreras que afectaron su desarrollo y sostenibilidad de EIP. El análisis indica que PET-Salud Interprofesionalidad fue una experiencia importante para regir el debate de EIP en los cursos de graduación y en los servicios de salud. Las experiencias acumuladas en ese programa constituyen una estructura que no puede despreciarse y que deberá perfeccionarse para servir de base a estrategias sostenibles que consideren la interprofesionalidad como un abordaje en la reorientación de la formación y calificación de la atención de la salud.(AU)

An almost periodic model to describe phenology mismatches in mutualistic interactions.

We study seasonal mutualistic interactions between two species. The model takes into account the climate-mediated shifts that can change the phenologies of mutualistic species. We show conditions on the parameters of the model that guarantee global stability. Numerical simulations are performed for different scenarios associated with seasonal changes. They show that if periodic time-dependence is used to approximate an almost periodic one, then not only the densities of the mutualistic populations but also the overlapping intervals describing the interval of co-occurrence can be either underestimated or overestimated. Therefore, using an almost periodic model can be more adequate to design conservation strategies for asynchronous phenology.

Metastatic primary brain rhabdomyosarcoma in a pediatric patient: illustrative case.

BACKGROUND: Primary intracranial rhabdomyosarcoma is an extraordinarily rare malignant tumor, with even fewer presenting with distant metastasis. To date, only five cases, including the one presented here, have been reported to present metastatic activity. OBSERVATIONS: A 12-year-old boy presented with a few days of headache, nausea, vomiting, but no neurological deficit. Brain computed tomography and magnetic resonance imaging demonstrated hydrocephalus and a cystic lesion with left parieto-occipital extension. After resection, pathology reported primary rhabdomyosarcoma, with positive desmin and myogenin on immunohistochemistry. The patient presented with pulmonary metastasis. The patient had an overall survival of 21 months after diagnosis with optimal treatment. LESSONS: Rhabdomyosarcoma is a malignant neoplasm arising from undifferentiated skeletal muscle cells, with morphological, immunohistochemical, ultrastructural, or molecular genetic evidence of primary skeletal muscle differentiation. It presents with a rapidly worsening clinical course and the final outcome is poor. Treatment is widely based on protocols that have been proven to be effective in extracranial versions of these tumors, although repeatedly ineffective. Primary brain rhabdomyosarcoma poses a diagnostic challenge because of its infrequent presentation, grade of undifferentiation and tumor heterogeneity. Immunohistochemical and genetic testing have proven to be useful tools for diagnosis.

Laparoendoscopic surgery for the treatment of gastrointestinal stromal tumors: A case series.

INTRODUCTION: Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal neoplasms of the gastrointestinal tract. The standard management for localized GIST is the complete surgical resection. For this procedure, laparoendoscopic cooperative surgery (LECS) has been proposed as a safe and effective alternative. We want to show our experience with LECS technique for the management of GIST and a literature review. MATERIALS AND METHODS: A retrospective, cross-sectional study was carried out, which included patients with a diagnosis of localized GIST treated with LECS technique between January 2011 and December 2018. RESULTS: During the period of the study, 21 patients were managed by LECS technique, with a male-female rate 3:1. Average surgical time was 98.5 min, 100% negative borders in all patients. Intraoperative bleeding was 30.7 cc and all patients had orally tolerance in the first 24 h. None of them required ICU management, no mortality was reported. CONCLUSIONS: The LECS technique has demonstrated to be a viable, safe, and effective technique for the management of gastric GIST's, showing superiority in organ function preservation and in the range of oncological margins. Prospective studies are necessary to obtain knowledge about the outcome of patients managed through LECS technique.

INTRODUCCIÓN: Los tumores del estroma gastrointestinal (GIST) son las neoplasias mesenquimales más comunes del tracto gastrointestinal. El tratamiento estándar para los GIST localizados es la resección quirúrgica completa. Para este procedimiento, el abordaje cooperativo laparo-endocopico (ACLE) se ha propuesto como una alternativa segura y eficaz. Queremos mostrar nuestra experiencia con la técnica ACLE para el manejo de GIST y unzaa revisión de la literatura. MATERIAL Y MÉTODOS: Se realizó un estudio retrospectivo, transversal, que incluyó pacientes con diagnóstico de GIST localizado tratados con la técnica ACLE entre enero de 2011 y diciembre de 2018. RESULTADOS: Durante el periodo de estudio se manejaron 21 pacientes con técnica de ACLE, con una tasa hombre-mujer de 3:1. El tiempo quirúrgico promedio fue de 98.5 min, con 100% de bordes negativos en todos los pacientes. El sangrado intraoperatorio fue de 30.7 cc y todos los pacientes tuvieron tolerancia oral en las primeras 24H. Ninguno de ellos requirió manejo en UCI, no se reportó mortalidad. CONCLUSIONES: La técnica ACLE ha demostrado ser una técnica viable, segura y eficaz para el manejo de los GIST gástricos. Mostrando superioridad en la preservación de la función orgánica y en los magines oncológicos. Son necesarios estudios prospectivos para conocer el resultado de los pacientes manejados mediante la técnica ACLE.

Articulação entre a EqSF/AB e o NASF/AB e sua influência na produção do cuidado no contexto da Atenção Primária à Saúde / Coordination between Primary Care Teams and Family Health Support Units and influence on Primary Care delivery

Resumo O objetivo deste artigo é comparar a realização de ações de articulação entre as equipes EqSF/AB e NASF/AB entre a região Nordeste e Brasil e sua influência no trabalho conjunto das equipes. As variáveis independentes foram 19 ações de articulação investigadas pelo módulo II do 3º Ciclo do PMAQ-AB. Os três desfechos referentes ao trabalho conjunto foram a disponibilidade da EqSF/AB em trabalhar com o NASF/AB, o apoio recebido do NASF/AB e a contribuição do trabalho deste para a resolutividade das ações para os usuários. A comparação entre o Nordeste e o Brasil na realização das ações de articulação foi realizada pelo Teste Z e a influência final de tais ações nos desfechos foi avaliada por Modelo Hierárquico de Regressão Linear. A região Nordeste realizou mais ações de integração entre a EqSF/ AB e o NASF/AB (p<0,05). As ações realizadas que apresentaram maior influência positiva nos três desfechos foram "discussão de casos", "elaboração conjunta do Projeto Terapêutico Singular", "realização de consultas compartilhadas" e "monitoramento dos resultados". A região Nordeste realizou mais ações de articulação, e elas apresentaram influências positivas no trabalho conjunto.

Abstract This article aims to compare the implementation of coordinated actions by family health/primary care (FH/PC) teams and extended family health and primary care units (NASF-ABs) in the Northeast and rest of Brazil, and the influence of implementation on collaborative working. The independent variables were 19 coordinated actions assessed by Module II of the 3rd Cycle of the National Program for Improving Primary Care Access and Quality (PMAQ-AB). The three collaborative working outcomes were "FH/PC team readiness to work jointly with the NASF-AB", "support received by the FH/PC team from the NASF-AB", and "The NASF-AB's contribution to resolving patients" needs. The implementation of coordinated actions by the Northeast and at national level was compared using the two-proportions z-test and the influence of these actions on the outcomes was assessed using hierarchical linear regression models: The Northeast implemented more actions that at national level (p<0.05). The implemented actions that had the most positive influence on the three outcomes were "Case conferences", "Joint development of singular therapy plans for complex cases", "Shared appointments" and "Results monitoring". The Northeast implemented more actions and the implemented actions had a positive influence on collaborative working.

Survey of Cooperative Advanced Driver Assistance Systems: From a Holistic and Systemic Vision.

The design of cooperative advanced driver assistance systems (C-ADAS) involves a holistic and systemic vision that considers the bidirectional interaction among three main elements: the driver, the vehicle, and the surrounding environment. The evolution of these systems reflects this need. In this work, we present a survey of C-ADAS and describe a conceptual architecture that includes the driver, vehicle, and environment and their bidirectional interactions. We address the remote operation of this C-ADAS based on the Internet of vehicles (IoV) paradigm, as well as the involved enabling technologies. We describe the state of the art and the research challenges present in the development of C-ADAS. Finally, to quantify the performance of C-ADAS, we describe the principal evaluation mechanisms and performance metrics employed in these systems.

Actividades cooperativas para la capacidad física flexibilidad, en estudiantes de la carrera Cultura Física

A través de las pruebas de eficiencia física, se determina cómo se va comportando el desarrollo de los estudiantes durante el curso y, en función de estos resultados, poder realizar acciones para mejorar su trayectoria. La flexibilidad es la capacidad física que brinda al hombre la posibilidad de realizar movimientos de gran amplitud, condicionada por las estructuras neuromio-articulares de fijación y estabilización y cuando se utiliza el trabajo cooperativo, el éxito de una actividad de un integrante depende del triunfo del compañero. En observaciones a clases y entrevistas realizadas a los estudiantes del primer año del curso Regular Diurno de la carrera de Cultura Física, se corrobora que en las Pruebas de Eficiencia Física (Pef) realizadas al inicio del curso, el nivel obtenido en la capacidad física Flexibilidad , con respecto al resto de las pruebas, es el de mayor dificultad y muy marcado en los varones, además, la variedad en las clases y el poco uso de trabajo cooperativo son insuficientes por lo que el objetivo de trabajo va dirigido a proponer un conjunto de actividades cooperativas que favorezcan la capacidad física Flexibilidad en los estudiantes del primer año de la carrera de Cultura Física de la Uccfd "Manuel Fajardo". Se utilizaron los métodos inductivo-deductivos, análisis-síntesis, observación científica, encuesta y criterio de especialista. Los resultados fueron positivos para los estudiantes después de cuatro meses de aplicarse la propuesta. Los especialistas valoraron de Muy Adecuado la propuesta, lo que se evidencia en los resultados de los estudiantes la mejoría del nivel en la prueba de flexibilidad.

Através dos testes de eficiência física, define-se como o desenvolvimento dos alunos está se comportando durante o curso e, dependendo destes resultados, podem ser tomadas medidas para melhorar sua evolução. Flexibilidade é a capacidade física que dá ao homem a possibilidade de realizar movimentos de grande amplitude, influenciados pelas estruturas neuro-mio-articulares de fixação e estabilização, e quando se utiliza o trabalho cooperativo, o sucesso da atuação de um membro depende do sucesso do associado. Nas observações nas aulas e nas pesquisas realizadas com os alunos no primeiro ano do curso Regular Diurno de Cultura Física, é comprovado que nos Testes de Eficiência Física (Pef) realizados no início do curso, o nível obtido na capacidade física Flexibilidade, em relação ao resto dos testes, é o mais difícil e muito marcado nos homens, Além disso, a variedade nas aulas e o pouco uso do trabalho cooperativo são insuficientes, por isso o objetivo do trabalho é propor um conjunto de atividades cooperativas que privilegiem a capacidade física para a flexibilidade nos alunos do primeiro ano do curso de Cultura Física no Uccfd "Manuel Fajardo". Foram utilizados os métodos indutivo-deducativo, análise-síntese, observação científica, pesquisa e critérios especializados. Os resultados foram positivos para os estudantes após quatro meses de aplicação da proposta. Os especialistas classificaram a proposta como Muito Adequada, o que é evidenciado pela melhoria no nível dos estudantes no teste de flexibilidade.

Through the physical efficiency tests, it is determined how the students' development is behaving during the course and, based on these results, actions can be taken to improve their trajectory. Flexibility is the physical capacity that gives man the possibility to perform movements of great amplitude, conditioned by the neuro-myo-articular structures of fixation and stabilization, and when cooperative work is used, the success of an activity of one member depends on the success of the partner. In class observations and interviews with the students of the first year of the Regular Day Course of the Physical Culture career, it is corroborated that in the Physical Efficiency Tests (Pef in Spanish) carried out at the beginning of the course, the level obtained in the physical capacity Flexibility, with respect to the rest of the tests, is the most difficult and very marked in the males, in addition, the variety in the classes and the little use of cooperative work are insufficient, so the objective of the work is aimed at proposing a set of cooperative activities that favor the physical capacity Flexibility in the students of the first year of the Physical Culture course of the Physical Culture and Sport Sciences University (Uccfd in Spanish) "Manuel Fajardo". The inductive-deductive, analysis-synthesis, scientific observation, survey and specialist criteria methods were used. The results were positive for the students after four months of applying the proposal. The specialists assessed the proposal as Very Adequate, which is evidenced by the students' results in the improvement of the level in the flexibility test.