Abstract (Introduction): Bycatch and discards are a socio-environmental concern that threatens the sustainability of marine life and fishing grounds. Approaches to this problem have focused on biological and/or ecological aspects. We considered it necessary to explore the problem from the social dimension and for this purpose we explored social representations. (Objective): The aim of this study is to explore the social representations of bycatch and discards in a group of businessmen and workers in the capture stage of the Argentine industrial fishing activity. We ask how they evaluate bycatch and fishing discards, what are their causes and if they observe possible solutions. (Methodology): Within the framework of a project of the Federal Fishing Council, we conducted focus groups with businessmen, business chambers, SOMU workers and captains of the industrial fishing activity. (Results): The results of the focus groups conducted in 2021 reveal three main causes of this problem. First, the lack of reliable data on actual discard levels raises concerns about sustainability and overfishing. Second, the low utilization of selectivity devices is attributed to their operational inefficiency and possible labour barriers. Finally, economic and organizational pressures, such as company profitability and workers’ salaries, justify the discard of non-target species, exacerbating the problem. (Conclusions): The work contributes to an understanding of the main reasons for bycatch and discards, which is essential to advance solutions. We understand that solutions are not simple and involve a sincere debate among stakeholders.

Resumen (Introducción): Las capturas incidentales y los descartes pesqueros son una preocupación socioambiental que amenaza la sostenibilidad de la vida marina y de los caladeros. Los abordajes a esta problemática estuvieron centrados en aspectos biológicos y ecológicos. Consideramos necesario explorar la problemática desde la dimensión social y para ello, exploramos las representaciones sociales. (Objetivo): El objetivo de este estudio fue explorar las representaciones sobre capturas incidentales y descartes pesqueros en un grupo de empresarios y trabajadores de la etapa de captura de la actividad pesquera industrial argentina, específicamente, cómo evalúan este problema, sus causas y posibles soluciones. (Metodología): En el marco de un proyecto del Consejo Federal Pesquero, se realizaron grupos focales con seis cámaras empresariales y personal jerárquico de empresas asociadas, así como trabajadores del SOMU y capitanes que operan en alta mar. (Resultados): Los resultados de los grupos focales realizados en 2021 revelaron tres principales causas de dicha problemática. Primero, la falta de datos confiables sobre los niveles reales de descarte genera preocupaciones sobre la sostenibilidad y la sobreexplotación. Segundo, la escasa utilización de dispositivos de selectividad se atribuye a su ineficacia operativa y a posibles barreras laborales. Finalmente, las presiones económicas y organizacionales, como la rentabilidad de las empresas y los salarios de los trabajadores, justifican el descarte, exacerbando el problema. (Conclusiones): El trabajo aporta a un entendimiento sobre las razones de la captura incidental y los descarte, esencial para avanzar en soluciones. Entendemos que las soluciones no son simples e implican un sincero debate entre actores.

Abstract (Introduction): Within the framework of the present capitalist system, human beings have become an important polluting agent. Current production and consumption processes do not consider the existence of finite natural resources and a planet incapable of treating the waste that the prevailing way of life generates. Given these circumstances, the study of non-linear models is of interest, which make a more rational use of the waste that the productive activity generates, favoring recycling mechanisms. The phenomenon of recycling becomes particularly relevant in the case of electrical and electronic devices, whose ability to be degraded and metabolized by planet Earth is extremely difficult. (Objective): Evaluate the feasibility of installing and starting a recycling plant for electrical and electronics items in the town of Bahía Blanca (Argentina), during 2021. (Methodology): The conventional method for evaluating investment projects was used, considering technical, legal and economic aspects. (Results): The project is not acceptable according to the profitability intended by the investor. The possibility of financing was also included, which made the project even less profitable, and the sensitivity of the results was measured, finding that the price should be 1.48 % higher than that used in the analysis. (Conclusions): Other alternatives must be explored to make this proposal profitable from an economic and financial point of view.

Resumen (Introducción): En el marco del sistema capitalista vigente, el ser humano se ha transformado en un agente significativo de contaminación. Las dinámicas productivas y de consumo actuales no contemplan la existencia de recursos naturales finitos y de un planeta incapaz de procesar los desperdicios que el modo de vida habitual genera. Dadas estas circunstancias, cobra interés el estudio de modelos no lineales, que hagan un uso más racional de los residuos derivados de la actividad productiva, los cuales favorezcan mecanismos de reciclaje. El fenómeno del reciclaje se vuelve, en particular, relevante para el caso de los artefactos eléctricos y electrónicos; la capacidad del planeta Tierra para degradarlos y metabolizarlos resulta sumamente difícil. (Objetivo): Evaluar la factibilidad de la instalación y puesta en marcha de una planta recicladora de artículos eléctricos y electrónicos en la localidad de Bahía Blanca (Argentina), durante el 2021. (Metodología): Se utilizó la metodología convencional de evaluación de proyectos de inversión, considerando aspectos técnicos, legales y económicos. (Resultados): El proyecto no es aceptable según la rentabilidad pretendida por el inversor. También se incluyó la posibilidad de un financiamiento, lo que hizo que el plan fuera menos rentable aún, y se midió la sensibilidad de los resultados: se halló que el precio debiera ser 1.48 % superior al utilizado en el análisis. (Conclusiones): Se deben explorar otras alternativas para lograr que el proyecto sea rentable desde el punto de vista económico-financiero.

Résumé Cet article aborde les résultats d’une étude ethnographique sur les expériences de violence de genre vécues par les migrantes aymaras boliviennes employées dans l’agriculture ou le commerce agricole en périphérie des territoires chiliens de la Triple-frontière Andine. Notre objectif est d’analyser les agressions subies par les femmes dans leur cadre familial. Nous utiliserons les récits de 30 femmes pour décrire les agressions perpétrées par les figures masculines de leurs familles d’origine (pères, frères, beaux-pères), mais aussi par leurs mères. De plus, nous observerons comment ces abus se répètent dans les relations qu’elles construisent avec leurs propres partenaires et leurs enfants. Nous verrons qu’il existe une différence potentielle dans la violence du côté chilien et bolivien de la frontière, et que la reconnaissance de cette différence motive la mobilité transfrontalière féminine. Le texte vise à contribuer et à discuter des débats sur la violence de genre dans les contextes frontaliers. dune d lagriculture l agriculture Triplefrontière Triple frontière Andine danalyser analyser familial 3 dorigine origine pères, pères (pères frères beauxpères, beauxpères beaux , beaux-pères) mères plus quelles qu elles enfants quil il féminine frontaliers beaux-pères

Resumo Este artigo trata dos resultados de um estudo etnográfico sobre as experiências de violência de gênero de migrantes aimarás bolivianas empregadas na agricultura ou no comércio agrícola na periferia dos territórios chilenos da Tríplice Fronteira Andina. Nosso objetivo é analisar as agressões sofridas pelas mulheres em seu ambiente familiar. Analisaremos as narrativas de 30 mulheres para descrever as agressões perpetradas pelas figuras masculinas de suas famílias de origem (pais, irmãos, padrastos), e também pelas suas mães. Observaremos como esses abusos se repetem nas relações que estas migrantes constroem com seus próprios parceiros e com seus filhos. Veremos que há uma diferença potencial da violência nos territórios chilenos e bolivianos da fronteira e que o reconhecimento dessa diferença motiva a mobilidade transfronteiriça feminina. O texto busca contribuir aos debates sobre a violência de gênero em contextos de fronteira. Andina familiar 3 pais, pais (pais irmãos padrastos, padrastos , padrastos) mães filhos feminina

Abstract This article presents the results of an ethnographic study on the experiences of gender-based violence of Aymara Bolivian women employed in agriculture or agricultural trade in the outskirts of Chilean territories of the Andean tri-border region. Our objective is to analyze the aggressions that women suffer in their family circles. We will analyze the narratives of 30 women to describe the aggressions perpetrated by the male figures in their families of origin (fathers, brothers, stepfathers), and their mothers. In addition, we will observe how these abuses are repeated in the relationships that they build with their partners and children. We will see a potential difference in violence between the Chilean and Bolivian border territories, and recognizing this difference motivates female cross-border mobility. The text seeks to contribute to the discussions on gender-based violence in border contexts. genderbased gender based triborder tri region circles 3 fathers, fathers (fathers brothers stepfathers, stepfathers , stepfathers) mothers addition children crossborder cross mobility contexts

Resumen Este artículo aborda los resultados de un estudio etnográfico sobre las experiencias de violencia de género de migrantes aymara bolivianas empleadas en la agricultura o en el comercio agrícola en la periferia de los territorios chilenos de la Triple-Frontera Andina. Nuestro objetivo es analizar las agresiones que sufren las mujeres en su ámbito familiar. Retomaremos las narrativas de 30 mujeres para describir las agresiones perpetradas por las figuras masculinas de sus familias de origen (padres, hermanos, padrastros), pero también por sus madres. Además, observaremos cómo estos abusos se repiten en las relaciones que construyen con sus propias parejas y con sus hijos. Veremos que existe una diferencia potencial en la violencia del lado chileno y boliviano de la frontera y que el reconocimiento de esta diferencia motiva la movilidad transfronteriza femenina. El texto busca aportar y discutir en torno a los debates sobre violencia de género en contextos fronterizos. TripleFrontera Triple Frontera Andina familiar 3 padres, padres (padres hermanos padrastros, padrastros , padrastros) madres Además hijos femenina fronterizos

Résumé Par la méthode historique-comparative, cet article aborde les impacts, sur les États-Unis, l’Allemagne et le Brésil, des quatre crises économiques internationales survenues jusqu’en 2019, en se concentrant principalement sur leurs effets sur le régime politique et le post-2008. Les pays sélectionnés ont eu des expériences autoritaires distinctes, anciennes ou actuelles. Je conceptualise l’État de manière tridimensionnelle : régime politique, appareil décisionnel et structure de domination politique appuyée sur des coalitions. J’argumente que les conjonctures internationales critiques ont tendance à avoir un impact sur cette tridimensionalité, facilitant l’observation de ses variations et continuités. Je formule et corrobore trois hypothèses sur ces crises : elles ont tendance à augmenter ou diminuer les niveaux de démocratie ou d’autocratie des régimes ou à les changer ; la réponse autocratisante dépend d’une relation de forces pro-entreprises, subordonnant les travailleurs ; l’engagement démocratique des acteurs s’oppose à l’autocratisation. La contribution à la littérature réside dans la manière d’aborder les processus d’autocratisation et de démocratisation, ici étudiés à travers les impacts des crises économiques internationales sur les États. Les conjonctures critiques éclairent les composants clés de la mutabilité du Léviathan. On examine le régime politique par la politique économique des relations entre l’État, les marchés et les classes sociales, et non exclusivement par les variables politico-institutionnelles. On analyse les mécanismes d’intersection de la sphère et des acteurs politico-institutionnels avec les structures et acteurs économiques et sociaux, qui, impactant la tridimensionalité de l’État, entraînent des changements de régime ou dans le régime. historiquecomparative, historiquecomparative historique comparative, comparative historique-comparative ÉtatsUnis, ÉtatsUnis États Unis, Unis États-Unis lAllemagne l Allemagne Brésil jusquen jusqu 2019 post2008. post2008 post 2008. 2008 post-2008 distinctes actuelles lÉtat État coalitions Jargumente J argumente lobservation observation continuités dautocratie d autocratie dune une proentreprises, proentreprises pro entreprises, entreprises pro-entreprises lengagement engagement soppose s oppose lautocratisation. lautocratisation autocratisation. autocratisation l’autocratisation daborder aborder dautocratisation démocratisation Léviathan lÉtat, État, sociales politicoinstitutionnelles. politicoinstitutionnelles politico institutionnelles. institutionnelles politico-institutionnelles dintersection intersection politicoinstitutionnels institutionnels sociaux qui 201 post200 200 post-200 20 post20 post-20 2 post2 post-2 post-

Resumen Por medio del método histórico comparativo, se abordan los impactos en los Estados de Estados Unidos, Alemania y Brasil, de las cuatro crisis económicas internacionales que han ocurrido hasta 2019, enfocándose, principalmente, en sus efectos en el régimen político y en el periodo posterior a 2008. Los países seleccionados tuvieron distintas experiencias autoritarias, antiguas o actuales. Defino al Estado de una forma tridimensional: régimen político, aparato decisor y estructura de dominación política respaldada en coaliciones. Argumento que las respectivas coyunturas críticas internacionales tienden a impactar esta tridimensionalidad, facilitando la observación de sus variaciones y continuidades. Así, formulo y corroboro tres hipótesis sobre esas crisis: tienden a aumentar o disminuir los niveles de democracia o autocracia de los regímenes o a cambiarlos; la respuesta autocratizante depende de una relación de fuerzas proempresarial que subordina a los trabajadores; y el compromiso democrático de los actores opera contra la autocratización. La contribución a la literatura se relaciona con el modo de abordar los procesos de autocratización y democratización aquí investigados por los impactos de las crisis económicas internacionales en los Estados. Las coyunturas críticas vislumbran componentes clave de la mutabilidad del Leviatán. Se investiga el régimen político a partir de la economía política de las relaciones entre Estado, mercados y clases sociales, y no exclusivamente por las variables político-institucionales. Se analizan mecanismos de intersección de la esfera y de los actores político-institucionales con las estructuras y actores económicos y sociales, que, impactando en la tridimensionalidad del Estado, implican cambios de régimen o en el régimen. comparativo Unidos Brasil 2019 enfocándose principalmente 2008 autoritarias actuales tridimensional coaliciones continuidades Así cambiarlos trabajadores Leviatán sociales políticoinstitucionales. políticoinstitucionales institucionales. institucionales 201 200 20 2

Abstract This study uses a historical-comparative method to examine the impacts of the four international economic crises that occurred until 2019 on the United States, Germany, and Brazil, focusing primarily on their effects on the political regime and the post-2008 period. The selected countries had different authoritarian experiences, either in the distant past or more recently. The State is conceptualized along three dimensions: political regime, decision-making apparatus, and the structure of political domination supported by coalitions. The argument is that the respective international critical junctures tend to impact this three-dimensionality, making it easier to observe their variations and continuities. Three hypotheses are formulated and corroborated regarding these crises: they tend to increase or decrease the levels of democracy or autocracy in regimes or change them; autocratization depends on a pro-business power balance that subordinates workers; the democratic commitment of actors operates against autocratization. This study’s contribution to the literature lies in the approach to processes of autocratization and democratization, which are investigated here through the impacts of international economic crises on States. Critical junctures shed light on key components of the mutability of the Leviathan. It investigates the political regime through the political economy of the relationships between the State, markets, and social classes, not exclusively through political-institutional variables. Mechanisms of intersection between the political-institutional sphere and economic and social structures and actors are analyzed. These mechanisms impact the three-dimensionality of the State, leading to changes in the regime or within the regime. historicalcomparative historical comparative 201 States Germany Brazil post2008 post 2008 post-200 period experiences recently dimensions decisionmaking decision apparatus coalitions threedimensionality, threedimensionality dimensionality, dimensionality continuities them probusiness pro business workers studys s democratization Leviathan markets classes politicalinstitutional institutional variables analyzed 20 post200 200 post-20 2 post20 post-2 post2 post-

Resumo Aborda-se, pelo método histórico-comparativo, impactos, nos Estados dos EUA, Alemanha e Brasil, das quatro crises econômicas internacionais ocorridas até 2019, focando-se, principalmente, em seus efeitos no regime político e no pós-2008. Os países selecionados tiveram distintas experiências autoritárias, remotas ou atuais. Conceituo o Estado tridimensionalmente: regime político, aparato decisor e estrutura de dominação política escorada em coalizões. Argumento que as respectivas conjunturas críticas internacionais tendem a impactar nesta sua tridimensionalidade, facilitando a observação de suas variações e continuidades. Formulo e corroboro três hipóteses sobre essas crises: elas tendem a aumentar ou diminuir os níveis de democracia ou autocracia dos regimes ou a mudá-los; a resposta autocratizante depende de uma relação de forças pró-empresarial, que subordine os trabalhadores; o compromisso democrático dos atores opera contra a autocratização. A contribuição com a literatura está no modo de abordagem dos processos de autocratização e democratização, aqui investigados pelos impactos das crises econômicas internacionais nos Estados. As conjunturas críticas iluminam componentes-chave da mutabilidade do Leviatã. Investiga-se o regime político pela economia política das relações entre Estado, mercados e classes sociais, e não exclusivamente pelas variáveis político-institucionais. Analisam-se mecanismos de intersecção da esfera e dos atores político-institucionais com as estruturas e atores econômicos e sociais, que, impactando na tridimensionalidade do Estado, ensejam mudanças de regime ou no regime. Abordase, Abordase Aborda se, se Aborda-se históricocomparativo, históricocomparativo histórico comparativo, comparativo histórico-comparativo EUA Brasil 2019 focandose, focandose focando focando-se principalmente pós2008. pós2008 pós 2008. 2008 pós-2008 autoritárias atuais tridimensionalmente coalizões continuidades mudálos mudá los mudá-los próempresarial, próempresarial pró empresarial, empresarial pró-empresarial trabalhadores democratização componenteschave componentes chave Leviatã Investigase Investiga sociais políticoinstitucionais. políticoinstitucionais institucionais. institucionais Analisamse Analisam 201 pós200 200 pós-200 20 pós20 pós-20 2 pós2 pós-2 pós-

Résumé La fin de la Seconde Guerre mondiale marque un ensemble de grandes transformations dans la pensée sociale brésilienne. Les théories raciales et eugéniques perdent rapidement leur force face aux interprétations d’ordre culturel et économique. Dans ce travail, une partie de ces transformations est racontée à partir des interprétations sur l’immigration japonaise au Brésil de deux intellectuels ayant une influence marquante au Parlement : le psychiatre-eugéniste Pacheco e Silva et le sociologue Gilberto Freyre. L’immigration japonaise a été au centre d’un débat intense dans les années 1930 et 1940, suscitant même des amendements restrictifs ou prohibitifs dans les Constitutions de 1934 et 1946. Cette étude analyse l’activité parlementaire des deux intellectuels pendant cette période, observe les influences de leurs pensées sociales sur leur activité politique, examine également les transformations qui ont lieu dans les années 1950, avec des changements dans la pensée de Pacheco e Silva, une plus grande influence de la pensée de Freyre et une redéfinition de la place de l’immigration japonaise dans le débat parlementaire. brésilienne dordre d ordre économique travail limmigration l immigration psychiatreeugéniste psychiatre eugéniste Limmigration L dun 193 1940 1946 lactivité période politique 1950 19 194 195 1

Resumen El final de la Segunda Guerra Mundial marcó un conjunto de grandes transformaciones en el pensamiento social brasilero. Las teorías raciales y eugenésicas van perdiendo fuerza rápidamente frente a las interpretaciones de cuño cultural y económico. En este trabajo, se da cuenta de parte de esas transformaciones a partir de las interpretaciones sobre la inmigración japonesa en Brasil de dos intelectuales con un importante desempeño parlamentario: el psiquiatra-eugenista Pacheco e Silva y el sociólogo Gilberto Freyre. La inmigración japonesa fue foco de intenso debate en las décadas de 1930 y 1940, e incluso fue merecedora de enmiendas restrictivas o prohibitivas en las Constituyentes de 1934 y 1946. Este estudio, analiza la acción parlamentaria de los dos intelectuales en ese periodo, observando las influencias de sus pensamientos sociales en su actividad política y examinando, también, las transformaciones que ocurrieron en la década de 1950, con cambios en el pensamiento de Pacheco e Silva, principal influencia del pensamiento de Freyre, y el rediseño del lugar dado a la inmigración japonesa en el debate parlamentario. brasilero económico trabajo parlamentario psiquiatraeugenista psiquiatra eugenista Freyre 193 1940 1946 estudio periodo examinando también 1950 19 194 195 1

Abstract The end of World War II marks a set of major transformations in Brazilian social thought. Racial and eugenic theories rapidly lose ground to interpretations of cultural and economic nature. This article examines part of these transformations through the perspectives on Japanese immigration to Brazil by two intellectuals with important parliamentary roles: the psychiatrist-eugenicist Pacheco e Silva and the sociologist Gilberto Freyre. Japanese immigration was the subject of intense debate in the 1930s and 1940s, even prompting restrictive or prohibitive amendments in the 1934 and 1946 constitutions. This study analyzes the parliamentary activities of both intellectuals over this period and demonstrates the influence of their respective social thoughts on their political endeavors. This article also examines the transformations that took place in the 1950s, including shifts in Pacheco e Silva’s thinking, a greater influence of Freyre’s ideas, and a reconfiguration of the role of Japanese immigration in parliamentary discourse. thought nature roles psychiatristeugenicist psychiatrist eugenicist Freyre s 1940s 193 194 constitutions endeavors 1950s Silvas thinking Freyres ideas discourse 19 1

Resumo O final da Segunda Guerra Mundial marca um conjunto de grandes transformações no pensamento social brasileiro. As teorias raciais e eugênicas vão perdendo rapidamente força frente às interpretações de cunho cultural e econômico. Neste trabalho, conta-se parte dessas transformações a partir das interpretações sobre a imigração japonesa no Brasil em dois intelectuais de marcante atuação parlamentar: o psiquiatra-eugenista Pacheco e Silva e o sociólogo Gilberto Freyre. A imigração japonesa foi foco de intenso debate nas décadas de 1930 e 1940, merecendo até mesmo emendas restritivas ou proibitivas nas Constituintes de 1934 e 1946. Este estudo analisa a atuação parlamentar dos dois intelectuais nesse período, observando as influências de seus pensamentos sociais em sua atividade política. O artigo examina, ainda, as transformações que ocorrem na década de 1950, com mudanças no pensamento de Pacheco e Silva, maior influência do pensamento de Freyre e um redesenho do lugar da imigração japonesa no debate parlamentar. brasileiro econômico trabalho contase conta se psiquiatraeugenista psiquiatra eugenista 193 1940 1946 período política examina ainda 1950 19 194 195 1

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

Abstract This study investigated the effect of dolomitic lime incorporation on the microstructure and mechanical properties of metakaolin-based geopolymers activated by alkaline solution. Five geopolymer mixtures were prepared with the addition of 0.0%, 2.5%, 5.0%, 7.5%, and 10.0% dolomitic lime. The microstructure of the geopolymers was evaluated by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and X-ray diffraction analyses (XRD). The compressive strength of the mixtures ranged between 53.2 and 63.0 MPa after 28 days of ambient curing. SEM/EDS analyses showed that the main phases formed were the N-A-S-H gel together with the C-A-S-H and N-M-A-S-H gels in the mixtures with dolomitic lime. In summary, the results showed that the incorporation of dolomitic lime can significantly improve the microstructure and properties of geopolymers. metakaolinbased metakaolin based solution 00 0 0.0% 25 2 5 2.5% 50 5.0% 75 7 7.5% 100 10 10.0 SEM, SEM , (SEM) energydispersive energy dispersive Xray X ray EDS, EDS (EDS) XRD. XRD . (XRD) 532 53 53. 630 63 63. curing SEMEDS NASH N A S H CASH C NMASH M summary 0.0 2.5 5.0 7.5 1 10. (SEM (EDS (XRD 6 0. 2. 5. 7.

Resumo Este estudo investigou o efeito da incorporação de cal dolomítica na microestrutura e nas propriedades mecânicas de geopolímeros à base de metacaulim ativados por solução alcalina. Foram preparadas cinco misturas de geopolímeros com adição de 0,0%, 2,5%, 5,0%, 7,5% e 10,0% de cal dolomítica. A microestrutura dos geopolímeros foi avaliada por microscopia eletrônica de varredura (MEV), espectroscopia de energia dispersiva de raios X (EDS) e análises de difração de raios X (DRX). A resistência à compressão das misturas variou entre 53,2 e 63,0 MPa após 28 dias de cura ambiente. As análises SEM/EDS mostraram que as principais fases formadas foram o gel N-A-S-H juntamente com os géis C-A-S-H e N-M-A-S-H nas misturas com cal dolomítica. Em resumo, os resultados mostraram que a incorporação de cal dolomítica pode melhorar significativamente a microestrutura e as propriedades dos geopolímeros. alcalina 00 0 0,0% 25 2 5 2,5% 50 5,0% 75 7 7,5 100 10 10,0 MEV, MEV , (MEV) EDS (EDS DRX. DRX . (DRX) 532 53 53, 630 63 63, ambiente SEMEDS SEM NASH N S H CASH C NMASH M resumo 0,0 2,5 5,0 7, 1 10, (MEV (DRX 6 0, 2, 5,

Diaporthe phaseolorum, an endophyte isolated from Combretum lanceolatum, has exhibited diverse biological activities including antimicrobial, leishmanicidal, antitumoral, and herbicidal properties. Regardless of these activities, there remains limited research on its chemical constituents. Therefore, this study aimed to investigate the metabolome of D. phaseolorum employing mass spectrometry data dereplication through molecular networking and MolNetEnhancer tools. Twenty two molecular families were annotated, including prenol lipids, benzenoids, organoheterocyclic compounds, and nucleosides. Among the 41 nodes annotated, 36 metabolites were confirmed via spectral references, including alismol, farnesol, linoleic acid, tyramine, N-acetyl-tyramine, 5-methoxy-1H-indole-3-carbaldehyde, 6-pentyl-2H-pyran-2-one, and adenosine. Further node annotation was achieved through MolNetEnhancer, resulting in the classification of an additional 68 nodes into various molecular families. Consequently, this study represents a significant contribution to the identification of the D. phaseolorum metabolome, highlighting its secondary metabolites and providing valuable chemical insights to elucidate its demonstrated biological activities. lanceolatum antimicrobial leishmanicidal antitumoral properties constituents Therefore D tools annotated lipids benzenoids compounds nucleosides 4 3 references alismol farnesol acid tyramine Nacetyltyramine, Nacetyltyramine N acetyl N-acetyl-tyramine 5methoxy1Hindole3carbaldehyde, 5methoxy1Hindole3carbaldehyde methoxyHindolecarbaldehyde 5 methoxy 1H indole carbaldehyde, carbaldehyde H 5-methoxy-1H-indole-3-carbaldehyde 6pentyl2Hpyran2one, 6pentyl2Hpyran2one pentylHpyranone 6 pentyl 2H pyran 2 one, one 6-pentyl-2H-pyran-2-one adenosine Consequently Hindole Hpyran

In recent years, the field of coordination chemistry has experienced a surge in interest regarding the synthesis and characterization of coordination complexes for diverse applications. This study is dedicated to investigating coordination compounds resulting from the interaction of nonsteroidal anti-inflammatory drugs (NSAIDs) with metal ions. The study research places significant emphasis on understanding the stability and thermal behavior of these coordination compounds. The utilization of thermoanalytical techniques is crucial in achieving this goal. Thermal analysis and thermokinetics provide valuable insights into the underlying mechanisms, kinetics, and energetics of these reactions, thereby facilitating the optimization of synthesis procedures. The research employs concurrent techniques, namely thermogravimetric analysis (TG) and differential scanning calorimetry (DSC), to explore the thermal stability and decomposition pathways of these coordination compounds. Thermokinetic models and optimization methodologies are subsequently applied to identify key reaction parameters. The primary aim of this research is to unveil the thermal behavior, stability, and reaction kinetics of aceclofenac coordination compounds, thus contributing significantly to the understanding of thermokinetics and thermal analysis in the domain of coordination chemistry. Specifically, this study is focused on aceclofenac coordination complexes involving lanthanum and gadolinium, with the ultimate goal of advancing the field of coordination chemistry. years applications antiinflammatory anti inflammatory NSAIDs (NSAIDs ions mechanisms reactions procedures TG (TG DSC, DSC , (DSC) parameters Specifically gadolinium (DSC

This study aimed to isolate, purify and characterize secondary metabolites present in Amburana acreana leaves, native to the state of Rondônia, using classical chromatographic methods and 1D, 2D nuclear magnetic resonance spectroscopy. From the hydroethanolic leaves extract of A. acreana, p-hydroxybenzoic acid, vanillic acid, coumarin, campesterol 3-β-D-glucoside and amburoside B, all known compounds, were identified. To the best of our knowledge, this is the first report of isolation and chemical characterization of secondary metabolites in A. acreana. In addition, in vitro assays indicated that amburoside B does not have inhibitory potential on the growth of gram-negative bacteria. The presence of these compounds suggests that, thus far, amburosides (A and B) could be chemotaxonomic markers of the genus Amburana. isolate Rondônia 1D D spectroscopy A phydroxybenzoic p hydroxybenzoic acid coumarin 3βDglucoside βDglucoside 3 β glucoside identified knowledge addition gramnegative gram negative bacteria far

This study aims to propose a new method for derivatizing fatty acids (FAs) from human milk (HM), eliminating the lipid extraction step, and simplifying the preparation for gas chromatography with a flame ionization detection (GC-FID) analysis to quantify the FAs. The Design Expert software optimized the reaction times, concentrations, and sample amount. The proposed method (PM) was validated for lyophilized HM and results for the figures of merit for precision in relative standard deviation (RSD) (RSDintra-day 1.34-4.03% and RSDinter day 2.08 5.16%), accuracy (99.87-102.16%), and robustness are within a linear range of 3 to 38% lipids in HM samples. The atmospheric solids analysis probe tandem mass spectrometry (ASAP-MS/MS) technique confirmed the efficiency of PM by expressing the molecular composition of triacylglycerol formed by FAs from the GC-FID technique. The PM requires a small sample size and conducts derivatization directly in the sample matrix, minimizing extraction errors. (FAs HM, , (HM) step GCFID GC FID (GC-FID times concentrations amount (PM RSD (RSD RSDintraday RSDintra 1.344.03% 134403 1.34 4.03% 1 34 4 03 1.34-4.03 208 2 08 2.0 5.16%, 516 5.16% 5 16 5.16%) 99.87102.16%, 998710216 99.87 102.16% 99 87 102 (99.87-102.16%) 38 samples ASAPMS/MS ASAPMSMS ASAP MS/MS MS (ASAP-MS/MS matrix errors (HM 344 1.344.03 13440 134 1.3 403 4.03 0 1.34-4.0 20 2. 51 5.16 87102 99.87102.16% 99871021 9987 99.8 10216 102.16 9 8 10 (99.87-102.16% ASAPMS MSMS 1.344.0 1344 13 1. 40 4.0 1.34-4. 5.1 8710 99.87102.16 9987102 998 99. 1021 102.1 (99.87-102.16 1.344. 4. 1.34-4 5. 871 99.87102.1 998710 102. (99.87-102.1 1.344 1.34- 99.87102. 99871 (99.87-102. 99.87102 (99.87-102 99.8710 (99.87-10 99.871 (99.87-1 (99.87- (99.87 (99.8 (99. (99 (9 (

RESUMO Objetivo: Identificar e caracterizar a população de casos pediátricos encaminhados para o nosso centro de oxigenoterapia hiperbárica. Métodos: Estudo retrospetivo e observacional, que incluiu doentes pediátricos tratados com oxigenoterapia hiperbárica, de 2006 a 2021, no centro de referência de medicina hiperbárica do norte de Portugal. As variáveis de interesse foram extraídas dos processos clínicos eletrônicos. Resultados: O nosso estudo incluiu 134 casos. Os motivos de encaminhamento mais frequentes foram intoxicação por monóxido de carbono (n=59) e surdez súbita neurossensorial (n=41). Em 75 casos (56%) o tratamento foi iniciado em contexto de urgência. Os sintomas de apresentação à admissão variaram entre os diferentes casos, sendo os mais frequentes cefaleias e náuseas/vômitos. No que diz respeito à intoxicação por monóxido de carbono, as fontes mais comuns foram o aquecedor, lareira/braseiro e caldeira. Com relação aos efeitos adversos, foram identificados um caso de intoxicação por oxigênio e quatro casos de barotrauma do ouvido médio. Conclusões: A causa mais frequente de encaminhamento foi a intoxicação por monóxido de carbono. Todos os pacientes evoluíram favoravelmente e foram registrados poucos efeitos adversos, o que enfatiza a segurança desta terapia. Uma vez que a maioria dos pediatras pode não estar informada sobre os potenciais benefícios da oxigenoterapia hiperbárica, é de extrema importância promovê-los para que esta técnica seja cada vez mais implementada. Objetivo Métodos observacional 200 2021 Portugal eletrônicos Resultados 13 n=59 n59 n 59 (n=59 n=41. n41 n=41 . 41 (n=41) 7 56% 56 (56% urgência náuseasvômitos náuseas vômitos náuseas/vômitos aquecedor lareirabraseiro lareira braseiro caldeira adversos médio Conclusões terapia promovêlos promovê los implementada 20 202 1 n=5 n5 5 (n=5 n4 n=4 4 (n=41 (56 2 n= (n= (n=4 (5 (n (

ABSTRACT Objective: To identify and characterize the population of Pediatric patients referred to our hyperbaric oxygen therapy center. Methods: Retrospective and observational study, including pediatric patients treated with hyperbaric oxygen therapy, from 2006 to 2021, at the hyperbaric medicine reference center in the north of Portugal. Variables of interest were extracted from electronic medical records. Results: Our study included 134 patients. The most frequent reasons for referral were carbon monoxide poisoning (n=59) and sudden sensorineural hearing loss (n=41). In 75 cases (56%), treatment was initiated in an urgent context. Symptom presentation at Emergency Department varied among patients, the most frequent being headache and nausea/vomiting. Concerning carbon monoxide poisoning, the most common sources were water heater, fireplace/brazier, and boiler. Regarding adverse effects, it was identified one case of intoxication by oxygen and four cases of middle ear barotrauma. Conclusions: The most frequent cause for referral was carbon monoxide poisoning. All patients evolved favorably, with few side effects being reported, emphasizing the safety of this therapy. While most pediatricians may not be aware of the potential benefits arising with hyperbaric oxygen therapy, it is of upmost importance to promote them, so that this technique is increasingly implemented. Objective Methods 200 2021 Portugal records Results 13 n=59 n59 n 59 (n=59 n=41. n41 n=41 . 41 (n=41) 7 56%, 56 56% , (56%) context nauseavomiting nausea vomiting nausea/vomiting heater fireplacebrazier fireplace brazier fireplace/brazier boiler barotrauma Conclusions favorably reported them implemented 20 202 1 n=5 n5 5 (n=5 n4 n=4 4 (n=41 (56% 2 n= (n= (n=4 (56 (n (5 (

The Schröeder-van Laar equation to predict the theoretical eutectic melting temperature values was applied to a set of fourteen binary mixtures (UR1 to UR14). The fourteen binary mixtures belong to a structurally diverse group of organic molecules. They are represented by the 5-membered heterocycles containing N-S and N-O rings, flexible methylene chains (RH), semi-rigid semi-fluorinated chains (RF), and hydrogen bonds (HB). A virtual screening totalizing ninety-one possible theoretical combinations was planned. The UR1 to UR14 were prepared by mixing individual components using the calculated mole fractions. The experimental (Te) and theoretical (Tt) temperatures for the eutectic melting points were determined using polarized optical microscopy (POM) and differential scanning calorimetry (DSC) techniques. Heterogeneous mixtures were formed for components with large structural diversity as seen by POM. During the melting of the mixtures, irregular behavior through the segregation of the components was recorded. The study showed that the similarities in structural diversities favor the formation of homogeneous mixtures, with Te values approaching Tt, as predicted by the Schröeder-van Laar equation and by the theory of eutectic mixtures. Liquid crystal properties were affected in homogeneous binary mixtures containing one of the individual liquid crystal components. Schröedervan Schröeder van UR (UR UR14. . UR14) molecules 5membered membered 5 NS N S NO O rings RH, RH , (RH) semirigid semi rigid semifluorinated fluorinated RF, RF (RF) HB. HB (HB) ninetyone ninety planned fractions (Te Tt (Tt POM (POM DSC (DSC techniques recorded (RH (RF (HB

The selective separation of precious metals from complex aqueous solutions is important in protecting the environment, aquatic ecosystems, water resources and recycling resources. In this study, cysteine-containing polymeric nanoparticles were synthesized using the molecular imprinting (MIP) technique with the mini-emulsion polymerization method. The basis of the polymer design is inspired by affinity of silver to cysteine in biological systems. The synthesized silver ion imprinted (Ag+-IIP) poly(hydroxyethylmethacrylate-N -methacryloyl-L-cysteine) poly(HEMA-MAC) nanoparticles were characterized by elemental analysis, zeta sizer, Fourier transform infrared (FTIR) spectroscopy, atomic force microscopy (AFM), and scanning electron microscopy (SEM). The effects of pH, ionic strength and interaction time on adsorption of Ag+ ions were investigated. In experimental studies, the highest adsorption amount (196.9 mg g1 nanoparticle) was reached in a short period of 40 min at pH 5.0 and 150 mg L-1 concentration. Selectivity studies of synthesized Ag+-IIP nanoparticles against silver (Ag+) ions were carried out in the presence of lithium (Li+), barium (Ba2+), mercury (Hg2+) and cadmium (Cd2+) ions. Experimental results indicate that nanoparticles adsorb Ag+ ions with high selectivity. Ag+-IIP nanoparticles have 3.7, 3.1, 2.4, and 2.6 times more selective or higher affinity for Ag+ ions compared to Li+, Ba2+, Hg2+ and Cd2+ ions, respectively, compared to Ag+-non-imprinted (NIP) nanoparticles. environment ecosystems study cysteinecontaining containing MIP (MIP miniemulsion mini emulsion method systems Ag+IIP AgIIP IIP Ag (Ag+-IIP polyhydroxyethylmethacrylateN poly hydroxyethylmethacrylate N methacryloylLcysteine methacryloyl L -methacryloyl-L-cysteine polyHEMAMAC HEMA MAC poly(HEMA-MAC analysis sizer FTIR (FTIR spectroscopy AFM, AFM , (AFM) SEM. SEM . (SEM) investigated 196.9 1969 196 9 (196. g nanoparticle 4 50 5 0 5. 15 L1 1 L- concentration (Ag+ Li Li+ (Li+) Ba2 Ba Ba2+ (Ba2+) Hg2 Hg (Hg2+ Cd2 Cd (Cd2+ selectivity 37 3 7 3.7 31 3.1 24 2 2.4 26 6 2. respectively Ag+nonimprinted Agnonimprinted non NIP (NIP (AFM (SEM 196. 19 (196 (Ag (Li+ (Ba2+ (Hg2 (Cd2 3. nonimprinted (19 (Li (Ba2 (Hg (Cd (1 (Ba (

Analysis of variance (ANOVA)-simultaneous component analysis (ASCA) is a method of choice for factorial design studies of environmental impacts on plant metabolomes and can be used to quantitatively carry out this comparative analysis. The impacts of seven mixture design extractor systems made up of ethanol, dichloromethane, and hexane and their 1:1 binary and 1:1:1 ternary solvents for several replicate experiments (n = 3, 4, 5) were assessed using ASCA models determined from Fourier-transform infrared (FTIR), near-infrared (NIR), and UV-Vis spectroscopic measurements on yerba mate leaf extracts. This analysis considered two-factor effects: secondary sexual dimorphism (male and female plants) and cultivation systems (monoculture and agroforestry), as well as their interaction effect. The three binary solvents were found to be more efficient extractor systems for all four detectors as they found 83 main and interaction effects significant at or above the 95% confidence level compared with only 47 for the pure solvent extracts. Binary solvent extracts resulted in averages between 44.04 and 86.61% for the ASCA total effect variances compared with 40.62 to 71.07% for pure extractors. Of the 60 significant effects found for experiments with 5 repetitions 53 or 88% were obtained with only triplicate determinations. The choice of spectroscopic technique and solvent system have large impacts on metabolomic analysis results. ANOVAsimultaneous ANOVA simultaneous (ASCA ethanol dichloromethane 11 1 1: 111 1:1: n 3 4 Fouriertransform Fourier transform FTIR, FTIR , (FTIR) nearinfrared near NIR, NIR (NIR) UVVis UV Vis twofactor two factor male plants monoculture agroforestry, agroforestry agroforestry) 8 95 4404 44 04 44.0 8661 86 61 86.61 4062 40 62 40.6 7107 71 07 71.07 extractors 6 88 determinations results (FTIR (NIR 9 440 0 44. 866 86.6 406 40. 710 7 71.0 86. 71.