Résumé Cet article propose em indicateur qui décrit, pour chaque municipalité brésilienne, son niveau et ses inégalités d’apprentissage. Cet indicateur est nécessaire car les inégalités d’apprentissage augmentent et ne sont pourtant pas observées par l’indicateur éducatif principal du pays, l’Indice de Développement de l’Éducation de Base (IDEB). L’étude onstatelize initialement la justice em éducation et se situe dans le débat sur les théories de la justice distributive. Ensuite, on onstate les aspects méthodologiques de l’indicateur et les résultats obtenus. La principale constatation est que les matières et les séries scolaires où l’on a onstat le plus grand nombre de municipalités augmentant leur niveau d’apprentissage sont également celles où l’on a onstate une forte augmentation des inégalités. décrit brésilienne dapprentissage. dapprentissage d apprentissage. apprentissage lindicateur l pays lIndice Indice lÉducation Éducation IDEB. IDEB . (IDEB) Létude L étude distributive Ensuite obtenus lon (IDEB

Resumen Este artículo propone un indicador que describe, para cada municipio brasilero, el nivel y las desigualdades de aprendizaje y sus diferencias. Ese indicador es necesario porque las desigualdades de aprendizaje son crecientes y, no obstante, no son observadas por el principal indicador educativo del país, el Índice de Desarrollo de la Educación Básica (IDEB). El estudio inicialmente conceptualiza la justicia en educación, situándose en el debate sobre teorías de justicia distributiva. Después, presenta los aspectos metodológicos del indicador y los resultados obtenidos. La principal constatación es que las disciplinas y grados escolares en que se verificó un mayor número de municipios con aumento de su nivel de aprendizaje son también en los que se verificó un fuerte aumento de las desigualdades. describe brasilero diferencias obstante país IDEB. IDEB . (IDEB) educación distributiva Después obtenidos (IDEB

Abstract This article proposes an indicator that describes each Brazilian municipality’s learning level of its elementary school students, as well as learning inequalities among groups of students defined by socioeconomic status, race, and sex. This indicator is necessary because learning inequalities are growing and are not observed by the country’s main educational indicator, the Basic Education Development Index (IDEB). This study initially conceptualizes justice in education, positioning itself in the debate on theories of justice. Then, it presents the methodological aspects of the indicator and the results obtained. The main finding is that the subjects and school grades in which the highest number of municipalities increased their learning levels are also those in which there was a strong increase in inequalities. municipalitys municipality s status race sex countrys country IDEB. IDEB . (IDEB) education Then obtained (IDEB

Resumo Este artigo propõe um indicador que descreve, para cada município brasileiro, o nível de aprendizagem de seus estudantes do ensino fundamental e as desigualdades de aprendizagem entre grupos de estudantes definidos por nível socioeconômico, raça e sexo. Esse indicador é necessário porque as desigualdades de aprendizagem são crescentes e, contudo, não são observadas pelo principal indicador educacional do país, o Índice de Desenvolvimento da Educação Básica (IDEB). O estudo inicialmente conceitualiza justiça em educação, situando-se no debate sobre teorias de justiça distributiva. Em seguida, apresenta os aspectos metodológicos do indicador e os resultados obtidos. A principal constatação é que as disciplinas e séries escolares nas quais se verificou o maior número de municípios aumentando o seu nível de aprendizagem são também aquelas em que se verificou forte aumento das desigualdades. descreve brasileiro socioeconômico sexo contudo país IDEB. IDEB . (IDEB) educação situandose situando distributiva seguida obtidos (IDEB

The coronavirus disease (COVID-19) pandemic, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has had a profound impact on global health and socio-economic conditions. To date, various vaccines have been administered worldwide in an effort to curb the spread of the virus. Despite vaccination efforts, there have been complications. Existing antiviral drugs have shown limited effectiveness, prompting the use of computational methods to understand the dynamics of the virus and develop suitable treatments. The current study focuses on using biocompatible para-sulfonato-calix[4]arenes to dock against two key proteins of SARS-CoV-2, namely ribonucleic acid (RNA)-dependent RNA polymerase, and helicase. Docking results indicate a strong binding affinity of these compounds to the target proteins, with higher scores compared to commonly used medications. Molecular dynamics (MD) simulation validates the docking results, showing stable protein-ligand complexes over time. The compounds are also screened for absorption, distribution, metabolism, and excretion properties and toxicity, suggesting their potential as lead candidates for inhibiting the virus’s key proteins. However, further in vivo and in vitro studies are recommended to confirm these findings. COVID19 COVID 19 (COVID-19 pandemic SARSCoV2, SARSCoV2 SARSCoV SARS CoV , (SARS-CoV-2) socioeconomic socio economic conditions date efforts complications effectiveness treatments parasulfonatocalix4arenes parasulfonatocalixarenes para sulfonato calix 4 arenes 2, SARS-CoV-2 RNAdependent dependent polymerase helicase medications MD (MD proteinligand protein ligand time absorption distribution metabolism toxicity viruss s However findings COVID1 1 (COVID-1 (SARS-CoV-2 parasulfonatocalix SARS-CoV- (COVID- (SARS-CoV- SARS-CoV (COVID (SARS-CoV

RESUMO Objetivo: Avaliar a funcionalidade e fatores associados em crianças e adolescentes com osteogênese imperfeita (OI). Métodos: Estudo transversal com 30 crianças e adolescentes com OI. Foram avaliados prontuários médicos, uso de bisfosfonatos, características socioeconômicas, dinamometria de preensão palmar, equilíbrio, hipermobilidade articular, nível de deambulação e escores do Pediatric Evaluation of Disability Inventory - Computer Adaptative Test (PEDI-CAT). Os dados foram apresentados em média e desvio padrão e comparados por teste t por Mann-Whitney, enquanto os categóricos foram apresentados em frequência e comparados pelo teste exato de Fisher. Análises intragrupos foram realizadas por análise de covariância (ANCOVA) ou Teste de Wilcoxon para postos sinalizados. O teste Tau-b de Kendall foi usado para correlações. Resultados: A idade variou de 6 a 18 anos. A amostra foi dividida em dois grupos de acordo com a gravidade da doença. Casos moderados/graves (n=10) apresentaram menor estatura e força muscular comparadas às dos leves (n=20). Fraqueza muscular foi observada em todos os casos de OI quando comparados à população normal. Não houve diferença nos domínios do PEDI-CAT com exceção do domínio mobilidade. Houve correlação entre o número de fraturas, tipo de OI, peso e equilíbrio e o domínio mobilidade; e entre os domínios Atividades Diárias e Mobilidade e Responsabilidade e Social/cognitivo do PEDI-CAT. Conclusões: Nossos achados sugerem que crianças com OI moderada/severa podem atingir o mesmo nível de funcionalidade que crianças com a forma leve. Fraturas podem ter grande influência no nível de funcionalidade e o tratamento deve enfocar a prevenção e a reabilitação desses eventos. Objetivo . (OI) Métodos 3 médicos bisfosfonatos socioeconômicas palmar articular PEDICAT. PEDICAT PEDI CAT (PEDI-CAT) MannWhitney, MannWhitney Mann Whitney, Whitney Mann-Whitney Fisher ANCOVA (ANCOVA sinalizados Taub Tau b correlações Resultados 1 anos doença moderadosgraves moderados graves n=10 n10 n 10 (n=10 n=20. n20 n=20 20 (n=20) normal mobilidade fraturas Socialcognitivo Social cognitivo CAT. Conclusões moderadasevera moderada severa leve eventos (OI (PEDI-CAT n=1 n1 (n=1 n2 n=2 2 (n=20 n= (n= (n=2 (n

ABSTRACT Objective: The aim of this study was to evaluate the functioning and associated factors in children and adolescents with osteogenesis imperfecta (OI). Methods: This is a cross-sectional study conducted on 30 children and adolescents with OI. Medical records, use of bisphosphonates, socioeconomic status, handgrip strength, balance, joint hypermobility, ambulatory level, and the Pediatric Evaluation of Disability Inventory—Computer Adaptative Test (PEDI-CAT) scores were assessed. Data is presented as mean and standard deviation and Student’s t-test or Mann–Whitney U test. Categorical data is presented as frequency and analyzed using Fisher’s exact test. Within-group analyses were conducted using ANCOVA or Wilcoxon signed-rank test. Correlations used Kendall’s Tau-b test. Results: The participants involved in this study were 6–18 years old. The sample was separated into two groups according to disease severity. The moderate/severe OI group (n=10) presented a lower height and muscular strength than the mild group (n=20). Muscle weakness was observed in all participants with OI when compared with the normal population. No differences were observed between the groups in the PEDI-CAT scores except for the mobility domain. There were correlations between the PEDI-CAT mobility domain and the number of fractures, OI type, weight, and balance; there was also a correlation between the PEDI-CAT daily activities, mobility, responsibility, and social/cognitive domains. Conclusions: The findings suggest that children with moderate/severe forms of OI can achieve the same function levels as children with mild OI. Fractures can have a major influence on the functional level, and treatment should focus on the prevention and rehabilitation of these events when they occur. Objective . (OI) Methods crosssectional cross sectional 3 records bisphosphonates status balance hypermobility level InventoryComputer Inventory Computer PEDICAT PEDI CAT (PEDI-CAT assessed Students Student s ttest t test MannWhitney Mann Whitney Fishers Fisher Withingroup Within signedrank signed rank Kendalls Kendall Taub Tau b Results 618 6 18 6–1 old severity moderatesevere moderate severe n=10 n10 n 10 (n=10 n=20. n20 n=20 20 (n=20) population fractures type weight activities responsibility socialcognitive social cognitive domains Conclusions occur (OI 61 1 6– n=1 n1 (n=1 n2 n=2 2 (n=20 n= (n= (n=2 (n

ABSTRACT Purpose: Although Brazil has a high prevalence of retinoblastoma, there is a lack of epidemiological data on the disease. Thus, in this study, we aimed to evaluate the epidemiological profile of patients diagnosed with retinoblastoma in the ophthalmology department of a pediatric tertiary referral hospital in Ceara, Brazil. Methods: A descriptive and cross-sectional study was conducted by retrospectively analyzing the clinical and socioeconomic data from the medical records of pediatric patients followed-up at the hospital between 2007 and 2021. Retinoblastoma was diagnosed on the basis of a fundoscopic or histopathologic examination. Results: The data of 105 patients were included in the study, and the mean patient age at the time of diagnosis was 1.7 years. Most of the patients were women (50.5%) and hailed from rural areas (57.4%), which was associated with a higher tumor stage. Of the 150 patients, 57.1% initially presented with leukocoria. Ocular hyperemia was associated with more advanced stages of retinoblastoma (p=0.004). Bilateral involvement was observed in 25.7% of the patients and at a significantly younger age (p=0.009). The presence of retinal detachment, vascularized lesions, and vitreous seeds significantly increased the likelihood of requiring enucleation. Discussion: This study presents an epidemiological description of retinoblastoma in Brazil, which highlights the significance of early detection. Delayed diagnosis is associated with a poorer visual prognosis and higher mortality rate, particularly in patients with unilateral disease. Risk factors for a more severe disease were retinal detachment, vascularized lesions, and vitreous seeds. The correlation between histopathological features and clinical outcomes was limited. Conclusion: Further studies are required to assess the influence of ocular hyperemia, fundoscopic assessment, and histopathologic findings on the prognosis of retinoblastoma. Moreover, it is critical to devise interventions to reduce the time-to-diagnosis in rural areas. Purpose Thus Ceara Methods crosssectional cross sectional followedup followed up 200 2021 examination Results 10 17 1 7 1. years 50.5% 505 50 5 (50.5% 57.4%, 574 57.4% , 57 4 (57.4%) stage 15 571 57.1 leukocoria p=0.004. p0004 p p=0.004 . 0 004 (p=0.004) 257 25 25.7 p=0.009. p0009 p=0.009 009 (p=0.009) detachment lesions enucleation Discussion detection rate limited Conclusion assessment Moreover timetodiagnosis 20 202 50.5 (50.5 57.4 (57.4% 57. p000 p=0.00 00 (p=0.004 2 25. (p=0.009 50. (50. (57.4 p00 p=0.0 (p=0.00 (50 (57. p0 p=0. (p=0.0 (5 (57 p=0 (p=0. ( p= (p=0 (p= (p

This paper elucidates the inseparable connection between the pursuit of a more ecologically sustainable society and the quest for socioeconomic justice. It also demonstrates why Unconditional Basic Income (UBI) is an effective policy to act on both fronts. First, the corresponding theory on environmental and socioeconomic oppression sheds light on the argument that both types of domination stem from the same historical process and are inherently interconnected. Addressing one without considering the other is essentially flawed; they are both features and consequences of present society. Acknowledging the historical debt owed to vulnerable economic classes and developing countries is imperative. Green republicanism could potentially establish a theoretical foundation for social-ecological thinking. Defining freedom as non-domination and applying this concept to nature are essential prerequisites for overcoming socioeconomic and environmental oppression. UBI is presented and discussed theoretically as a strong solution to address these two challenges. It serves not only as a means to facilitate the transition to a post-productivist society, transforming labor relations, but also as a catalyst for the development of circular economies and more sustainable occupations. Additionally, the basic income policy implemented in the city of Maricá, Brazil, is cited as empirical evidence showcasing the environmental and socioeconomic values of UBI. justice (UBI fronts First interconnected flawed imperative socialecological social ecological thinking nondomination non challenges postproductivist post productivist relations occupations Additionally Maricá Brazil

Resumo Analisou-se a viabilidade técnica e ambiental da Erythrina poeppigiana para produzir compensados com os adesivos: fenol-formaldeído (FF); uréia-formaldeído (UF) e poliuretano à base de mamona (PU). Avaliou-se as propriedades física e mecânica: densidade aparente, teor de umidade, absorção de água, inchamento em espessura, resistência ao cisalhamento e flexão estática. Os testes apontaram a viabilidade da eritrina para produção de compensados não estruturais. A avaliação ambiental, através dos indicadores, quantificação da energia embutida e emissão de CO 2 e, demonstrou que os pain compensado produzido com adesivo PU teve melhor desempenho que os painéis com FF e UF. O tratamento T1 (FF) apresentou maior energia embutida, o T2 (UF) a maior emissão de CO 2 e. A viabilidade técnica e ambiental da eritrina para produzir compensados pode promover o desenvolvimento socioeconômico regional, ambientalmente sustentável, com vantagens em relação aos compensados estrangeiros, bem como ao desempenho ambiental. Analisouse Analisou se adesivos fenolformaldeído fenol formaldeído uréiaformaldeído uréia UF (UF PU. . (PU) Avaliouse Avaliou mecânica aparente umidade água espessura estática estruturais indicadores T (FF regional sustentável estrangeiros (PU

Abstract The study analyzed the technical and environmental feasibility of using Erythrina poeppigiana to produce plywood with different adhesives: phenol-formaldehyde (PF), urea-formaldehyde (UF), and castor oil-based polyurethane (PUA). The physical and mechanical properties of the plywood were evaluated, including apparent density, moisture content, water absorption, thickness swelling, shear resistance, and static bending. Tests proved erythrina’s suitability for non-structural plywood production. The environmental impact of the production process was also evaluated, using embedded energy and CO2e emissions as indicators. The results showed that plywood produced with PU adhesive had better environmental performance compared to panels with FF and UF adhesives. T1 treatment (PF) had the highest embodied energy, while T2 (UF) had the highest CO2e emission. Overall, the study suggests that using erythrina to produce plywood can be a viable option for promoting regional socioeconomic development while also being environmentally sustainable and presents an advantage over foreign plywood in terms of environmental performance. adhesives phenolformaldehyde phenol formaldehyde PF, PF , ureaformaldehyde urea UF, oilbased oil based PUA. PUA . (PUA) evaluated density content absorption swelling resistance bending erythrinas s nonstructural non structural COe CO e indicators T (PF (UF emission Overall (PUA

Resumen Introducción. Paraguay es el sexto productor y tercer exportador mundial de soja (Glycine max (L.) Merr.), este cultivo es el de mayor importancia socioeconómica en el país. Sin embargo, su productividad puede verse afectada por enfermedades causadas por hongos fitopatógenos. Además, la información fitosanitaria sobre el cultivo de soja en Paraguay es limitada. Objetivo. Comprender la percepción de agricultores sobre las principales enfermedades de la soja y su manejo. Materiales y Métodos. Entre abril y mayo de 2022, se aplicó un cuestionario en formato de formularios de Google con preguntas abiertas y cerradas de selección múltiple a 45 productores de soja de entre 30 y 50 años, quienes cultivan en superficies de entre 200 y 1000 ha en los departamentos de Alto Paraná, Itapúa y Caaguazú en Paraguay. Resultados. El 56 % de los encuestados consideró que el mayor problema fitosanitario asociado al cultivo es la roya asiática de la soja (RAS) (Phakopsora pachyrhizi), seguida por las enfermedades de final de ciclo (EFC), como la mancha marrón (Septoria glycines) y mancha ojo de rana (Cercospora kikuchii). Los entrevistados indicaron que utilizan de tres a cuatro aplicaciones de fungicidas como medida de control de enfermedades, su elección fue basada en el tipo de formulación de los productos. En su mayoría, los entrevistados señalaron que el costo y la cantidad de aplicaciones aumentó con el transcurso del tiempo. El 53 % mencionó que los fungicidas biológicos son una buena alternativa para el manejo integrado de enfermedades. Conclusión. Las respuestas obtenidas en esta investigación permitieron obtener la percepción de las tácticas de manejo de enfermedades de los productores de soja en Paraguay, lo que resaltó la importancia de la RAS y las EFC. No obstante, resulta necesario que se realicen más investigaciones que puedan explorar todos los aspectos del manejo de los patógenos.

Abstract Introduction. Paraguay is the sixth largest producer and third largest exporter of soybeans (Glycine max (L.) Merr.) in the world and this crop is the most important socio-economic crop in the country. However, its productivity can be adversely affected by diseases caused by phytopathogenic fungi. In addition, phytosanitary information on soybean cultivation in Paraguay is limited. Objective. To understand farmers’ perceptions of the main soybean diseases and their management. Materials and methods. Between April and May 2022, a questionnaire in Google Forms format with open and closed-ended multiple-choice questions, was applied to 45 soybean producers aged between 30 and 50 years, who cultivate in areas between 200 to 1000 ha in the departments of Alto Paraná, Itapúa, and Caaguazú in Paraguay. Results. Among the respondents, 56% considered Asian soybean rust (Phakopsora pachyrhizi) as the most significant phytosanitary problem associated with soybean cultivation, followed by late-season diseases (LSD) such as brown spot (Septoria glycines) and frogeye leaf spot (Cercospora kikuchii). Respondents indicated taht they use three to four fungicide applications as a disease control measure, with their choice based on the type of product formulation. A majority of respondents noted that both the cost and frequency of applications increased over time. Additionally, 53% mentioned that biological fungicides are a viable alternative for integrated disease management. Conclusion. The responses obtained in this research allowed obtaining the perception of disease management tactics of soybean producers in Paraguay, underscoring the significance of Asian soybean rust and late-season diseases. However, there is a need for further research that can explore all aspects of pathogen management.

RESUMEN En el artículo, a partir del análisis lógico histórico, se exponen algunas consideraciones sobre el proceso de socialización del campesino en Cuba, y se precisa su lugar en la actualidad. El trabajo repasa algunos momentos de la socialización agraria, en general, y analiza algunas de las contradicciones que ha supuesto este proceso. Se acerca a los diferentes tipos socioeconómicos que han participado en la socialización del campesino, entre estos, las formas cooperativas y la usufructuaria libre de la tierra. Allega algunas ideas a tener en consideración para el desarrollo de una posible política agraria nacional. Por último, precisa el lugar de la Cooperativa de Créditos y Servicios, el desarrollo de la economía familiar, cooperativa y comunal.

ABSTRACT In the article, based on historical logical analysis, some considerations are presented about the process of socialization of the peasant in Cuba, specifying its place today. The work reviews some moments of the process of agrarian socialization in general and analyzes some of the contradictions that the process has entailed. It approaches the different socioeconomic types that have participated in the process of socialization of the peasant, the cooperatives and the free usufructuary of the land. It contains some ideas to take into consideration for the development of a possible national agrarian policy. Finally, it specifies the possible place of the Credit and Services Cooperative, the development of the family, cooperative and communal economy.

RESUMEN Desde finales de 2019, la pandemia de la COVID-19 ha traído consigo desafíos globales sin precedentes, afectando profundamente las estructuras socioeconómicas en todo el mundo. América Latina, conocida por su diversidad económica y social, ha sentido estos impactos de manera significativa. En este escenario, la protección social no contributiva se ha revelado como un pilar fundamental para contrarrestar las adversidades económicas y sociales de la crisis sanitaria, en especial para aquellos sectores de la población que quedan fuera del alcance de los sistemas tradicionales de seguridad social basados en contribuciones laborales. El artículo examina las respuestas políticas y sociales implementadas en la región en respuesta a la crisis sanitaria a través de una variedad de estrategias, incluyendo transferencias monetarias directas, programas de protección del empleo, y medidas de asistencia sanitaria. Este análisis proporciona una visión integral de la situación y destaca la relevancia de las medidas de emergencia en tiempos de crisis y su papel en la construcción de un futuro más seguro y justo para la región.

ABSTRACT Since the end of 2019, the COVID-19 pandemic has brought unprecedented global challenges, deeply affecting socioeconomic structures worldwide. Latin America, known for its economic and social diversity, has significantly felt these impacts. In this scenario, non-contributory social protection has emerged as a fundamental pillar to counteract the economic and social adversities of the health crisis, especially for those sectors of the population that are beyond the reach of traditional social security systems based on labour contributions. The article examines the political and social responses implemented in the region in response to the health crisis through a variety of strategies, including direct monetary transfers, employment protection programs, and health assistance measures. This analysis provides a comprehensive view of the situation, highlighting the importance of emergency measures in times of crisis and their role in building a safer and more just future for the region.

RESUMEN El objetivo de este trabajo consiste en valorar críticamente el modo en que se emplean los términos clave que describen el contenido conceptual y la práctica legislativa de la participación de los trabajadores en la dirección en las organizaciones estatales cubanas, y que aparecen en las principales disposiciones normativas que conforman el derecho de trabajo, el sistema legal empresarial y los documentos programáticos que contienen las estrategias socioeconómicas en Cuba, en su proyección hasta el 2030. Se realizó un estudio observacional descriptivo transversal a partir de procedimientos bibliométricos y el análisis comparativo de los principales documentos regulatorios y normativos enunciados anteriormente. Se evidenció que existe un amplio, multifacético, contextualizado y diferenciado tratamiento de los principales aspectos teóricos, que conforman el «deber ser» de la participación de los trabajadores en la dirección de las organizaciones estatales cubanas. El estudio bibliométrico y análisis comparativo de los textos utilizados permitió constatar que, a pesar de las diferencias económicas, sociopolíticas e ideológicas que existen, se observa cierta coincidencia en el tratamiento del término clave «participación de los trabajadores» que propone el sistema legal y normativo cubano y aquel que plantea la bibliografía especializada a nivel mundial sobre el tema.

ABSTRACT This paper’s purpose is to assess critically the use of key terms operated to describe the conceptual content and normative practice in Cuba’s state organization management of worker’s participation, which appear in main regulatory documents that form labor law regulations. Also in Enterprise’ legal system and programmatic documents that contain the socioeconomic strategies in Cuba in their projection until 2030. It was performed a cross-sectional, descriptive observational study based on bibliometric and comparative analysis of the main regulatory and normative documents stated above. It was evident that there is a broad, multifaceted, contextualized and differentiated treatment of the main theoretical aspects that make up the «duty» of workers' participation in Cuban state organizations management. The comparative analysis allowed stating the fact that besides of the economic, sociopolitical and ideological differences, there is a certain match on the «worker’s participation» keyword treatment provided by the legal and normative Cuban system and the specialized world-level bibliography that studies the subject.

Resumo: Desde a década de 1960, uma série de pesquisas tem questionado a capacidade das escolas para igualar os níveis de aprendizagem entre alunos de diferentes origens sociais. Apesar da diversidade de programas e políticas que buscaram equalizar as diferenças, pesquisas em diversos contextos constataram repetidamente que as diferenças não apenas persistem, mas são reproduzidas nas escolas. Este artigo aborda o problema de uma perspectiva um pouco diferente: seu objetivo é identificar práticas e atitudes de estudantes e docentes associadas a diferenças no desempenho escolar entre estudantes de condição social e econômica mais baixa no Brasil e na Argentina. O objetivo não é entender os mecanismos que reproduzem as diferenças entre os estratos, mas sim aqueles que geram maior desempenho relativo entre os estudantes com menos recursos. Para isso, foi realizada uma análise comparativa dos resultados do teste PISA de 2018 por meio de modelos estatísticos multivariados. Essa análise mostrou que determinados fatores, como a empatia docente, a motivação e perseverança estudantil ou as modalidades de estudo, estão associados ao desempenho. Mas também mostrou que a magnitude da associação varia de acordo com o contexto. Esses resultados contribuem para a elaboração de políticas educacionais que buscam aumentar o desempenho em estratos desfavorecidos, indicando algumas condições que podem favorecê-lo, mas também alertando sobre as dificuldades de extrapolar resultados entre contextos de forma acrítica

Abstract: Since the 1960s, a vast array of studies has questioned the ability of schools to equalize learning levels among students from different social backgrounds. Despite various programs and policies aimed at reducing these disparities, research in diverse contexts has repeatedly found that not only do these differences persist, but they are also reproduced within the school system. This article approaches the issue from a slightly different perspective: its objective is to identify practices and attitudes of students and teachers that are associated with differences in school performance among students from lower socioeconomic backgrounds in Brazil and Argentina. The focus is not on understanding the mechanisms that perpetuate differences between social strata, but rather on identifying those that lead to higher relative achievements among students with fewer resources. A comparative analysis of the 2018 PISA test results was conducted using multivariate statistical models. This analysis revealed that certain factors, such as teacher empathy, student motivation and perseverance, and study methods, are associated with academic performance. However, it also showed that the strength of these associations varies depending on the context. These findings contribute to the design of educational policies aimed at improving performance in disadvantaged groups by highlighting conditions that may foster better outcomes, while also cautioning against uncritically extrapolating results across different contexts

Resumen: Desde la década de 1960 en adelante una extensa serie de estudios ha puesto en duda la capacidad de la escuela para igualar los niveles de aprendizaje entre estudiantes de distinto origen social. Pese a la diversidad de programas y políticas que han buscado igualar las diferencias, distintas investigaciones en diversos contextos han encontrado una y otra vez que las diferencias no solo persisten, sino que se reproducen en la escuela. En este artículo se aborda el problema desde una óptica ligeramente diferente: su objetivo es identificar prácticas y actitudes de estudiantes y docentes asociadas a las diferencias de desempeño escolar entre estudiantes de menor nivel económico social en Brasil y Argentina. No se busca comprender los mecanismos que reproducen las diferencias entre estratos, sino aquellos que generan mayores logros relativos en los estudiantes con menos recursos. Se realizó para ello un análisis comparativo de los resultados de las pruebas PISA del 2018 mediante modelos estadísticos multivariados. Este análisis mostró que ciertos factores, como la empatía docente, la motivación y perseverancia estudiantil o las modalidades de estudio se asocian al desempeño. Pero también evidenció que la magnitud de la asociación varía con el contexto. Estos resultados aportan al diseño de políticas educativas que procuren incrementar el desempeño en estratos desfavorecidos, al indicar algunas condiciones que pueden favorecerlo, pero advirtiendo también sobre las dificultades de extrapolar resultados entre contextos de manera acrítica

Resumen En el presente artículo se indaga sobre la relación entre la migración y la política en Estados Unidos durante el período de 2000-2020. En específico, se examina el volumen de detenciones en función del partido gobernante a nivel estatal, a la vista de distintos eventos coyunturales y procesos socioeconómicos, con los datos del Departamento de Seguridad Nacional de Estados Unidos, por agencia participante. En cada apartado, distintas interrogantes guían la investigación: en primer lugar, ¿quiénes arrestan a inmigrantes en Estados Unidos?; en segundo, ¿qué agencia realiza más arrestos de indocumentados? y ¿dónde ocurren más arrestos, en la frontera o en el interior?; en tercer lugar, ¿qué papel juegan los gobiernos estatales según su afiliación política demócrata o republicana? Las tendencias principales y las diferencias se presentan en las conclusiones.

Abstract This article investigates the relationship between migration and politics in the United States during the period 2000-2020. Specifically, detention figures are examined in relation to the ruling party at the state level, in the context of different conjunctural events and socioeconomic processes, using data from the United States Department of Homeland Security, by participating agency. Different questions guide the investigation in each section: first, who apprehends immigrants in the United States?; Second, which agency makes the most apprehensions of undocumented immigrants?, and where do the largest number of apprehensions take place, at the border or inside the country?; Third, what role do state governments play depending on their political affiliation, Democrat or Republican? Main trends and differences are presented in the conclusions.

Resumen Se estudia el emprendimiento y la reintegración de personas colombianas que migraron a Venezuela hacia el año 2000 y fueron deportadas a Colombia en 2015 por el gobierno venezolano. Se investiga hasta qué punto sus movilidades espaciales transfronterizas y sus redes sociales contribuyen al avance de sus microemprendimientos, y cómo el contexto geopolítico influye en su reintegración socioeconómica. La metodología comprende la observación etnográfica multisituada, las entrevistas biográficas, los mapas mentales y los talleres participativos Minga realizados con 18 individuos. Se concluye que, pese a su notable resiliencia, las personas en retorno y sus emprendimientos se enfrentan a una precariedad constante debido a la falta de apoyo estatal, los conflictos geopolíticos prevalentes, la débil economía local y el trauma de la deportación. Así mismo, buscando mejorar su reintegración socioeconómica, los migrantes que retornan efectúan estrategias de movilidad transfronteriza para aprovechar las oportunidades ofrecidas por diferentes lugares en Colombia y Venezuela.

Abstract This paper explores the entrepreneurship and reintegration of Colombians who migrated to Venezuela around 2000 and were arbitrarily deported to Colombia in 2015 by the Venezuelan government. It asks to what extent their cross-border spatial mobilities and social networks help develop their microenterprises and how the geopolitical context influences their socioeconomic reintegration. The methodology includes multi-sited ethnographic observation, biographical interviews, mental maps, and participatory Minga workshops carried out with 18 individuals. It is concluded that, despite their remarkable resilience, these individuals and their business ventures face constant precarity due to a lack of state support, prevalent geopolitical conflicts, a weak local economy, and the trauma of deportation. At the same time, in an attempt to improve their socioeconomic reintegration, returning migrants deploy cross-border mobility strategies to take advantage of the opportunities offered by different localities in Colombia and Venezuela.

Resumen: La cuenca binacional del río Zarumilla es un lugar con gran diversidad de especies y es de gran importancia para la economía de Perú y Ecuador. Estos factores socioeconómicos pueden traer consigo cambios en la distribución de las coberturas del suelo, los cuales afectan de manera negativa los ecosistemas. El presente estudio tiene como objetivo evaluar los cambios de cobertura y uso de suelo durante el periodo 1992-2022 y construir una proyección al año 2040 siguiendo las tendencias de uso actuales y su patrón histórico. Se usaron mapas de cobertura y uso de suelo de los años 1992 y 2022, así como información georreferenciada que fue usada para encontrar los factores condicionantes para el cambio de suelo. El modelo de prospección se basó en la implementación de cadenas de Markov y autómatas celulares usando factores condicionantes para construir una proyección más precisa. Los resultados obtenidos reflejan una pérdida neta de 11378 hectáreas de bosque durante el periodo 1992-2022, ocurriendo el 87.7% de esta pérdida en el lado ecuatoriano de la cuenca. A este ritmo se puede prospectar una pérdida de bosque de 10552 hectáreas para el periodo 2022-2040, de igual manera prevista principalmente en el lado ecuatoriano. El modelo prospectivo también resalta que los principales cambios se producirán en áreas de baja altitud y en proximidad a fuentes hídricas y carreteras. Esta es una pérdida alarmante de bosque nativo, la cual se puede evitar mediante la creación de políticas de desarrollo sostenible y programas de ordenamiento territorial.

Abstract: The binational basin of the Zarumilla River is a place with great species diversity and is particularly important to the economy of Peru and Ecuador. These socioeconomic factors can lead to changes in land cover distribution, which negatively affect ecosystems. The present study aims to evaluate changes in land cover and use during the period 1992-2022 and to generate a projection for the year 2040 following current usage trends and historical patterns. Land cover and use maps from 1992 and 2022 were used, along with georeferenced information that was employed to identify the conditioning factors for land change. The prospection model was based on the implementation of Markov chains and cellular automata using conditioning factors to build a more accurate projection. The results obtained reflect a net loss of 11378 hectares of forest during the period 1992-2022, with 87.7% of this loss occurring on the Ecuadorian side of the watershed. At this rate, a forest loss of 10552 hectares can be projected for the period 2022-2040, similarly projected mainly on the Ecuadorian side. The projection model also highlights that the main changes will occur in low-altitude areas and in proximity to water sources and roads. This is an alarming loss of native forest, which can be avoided through the creation of sustainable development policies and land-use planning programs.

Resumen Objetivo: este estudio estima un sistema de demanda de bienes alimenticios en México, incorporando dimensiones territoriales y de ingreso. Se evalúa el impacto diferenciado de choques en los precios en el bienestar económico y la tasa de pobreza, considerando variaciones entre hogares y entre cinco grandes regiones. Metodología: utilizando el modelo de valores unitarios de Deaton (1988) y la Encuesta Nacional de Ingresos y Gastos de los Hogares (ENIGH) de 2018, calculamos elasticidades-precios y elasticidades-ingreso y el impacto de las variaciones de precios en el ingreso y la pobreza. Resultados: revelan importantes diferencias regionales y se subraya la necesidad de considerar diferencias socioeconómicas y regionales y de adoptar un enfoque territorial en este tipo de análisis y para formular políticas efectivas. Limitaciones: existen limitaciones a este estudio que pueden afectar la comprensión completa de la dinámica de la pobreza. Hemos enfocado nuestra atención únicamente en los bienes alimenticios, excluyendo un grupo específico de productos, en este caso, los productos pesqueros. También, se considera que los hogares son únicamente consumidores de bienes, omitiendo así la dimensión productiva de autoconsumo. Originalidad: radica en la vinculación directa entre las estimaciones de pobreza y la desagregación territorial, integra patrones de consumo y elasticidades específicas a cada región. Conclusiones: se resalta la importancia de considerar las diferencias socioeconómicas y regionales al analizar la demanda de bienes alimenticios y su impacto en la pobreza. A pesar de las limitaciones, nuestros hallazgos subrayan la necesidad de un enfoque territorial en este tipo de análisis para formular políticas adaptadas y efectivas de reducción de la pobreza en diferentes regiones del país.

Abstract Objective: this study estimates a system of demand for food products in Mexico, incorporating territorial and income dimensions. The differentiated impact of shocks on prices on economic well-being and the poverty rate is evaluated, considering variations among households and across five major regions. Methodology: using Deaton’s (1988) unit values model and the 2018 National Income and Expenditure Survey (ENIGH), we calculate price and income elasticities, examining the impact of price variations on income and poverty. Results: our results reveal significant regional differences, emphasizing the need to consider socioeconomic and regional variations and to adopt a territorial approach in such analyses for effective policy formulation. Limitations: there are limitations to this study that may affect a complete understanding of poverty dynamics. We have focused our attention solely on food products, excluding a specific group of products, in this case, fishery products. We also assume that households are only consumers of goods, thus omitting the productive and self-consumption dimension. Originality: lies in the direct link between poverty estimates and territorial disaggregation, integrating consumption patterns and specific elasticities for each region. Conclusions: our study highlights the importance of considering socioeconomic and regional differences when analyzing the demand for food products and its impact on poverty. Despite the limitations, our findings underscore the need for a territorial approach in this type of analysis to formulate tailored and effective poverty reduction policies in different regions of the country.