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 L’article vise à étudier un parcours unique de réception et de traduction des idées d’Antonio Gramsci au Brésil. Ce travail vise à reconstruire la pensée politique de Fernando Henrique Cardoso pendant la dictature militaire et la transition démocratique brésilienne (1964-1988), en prenant comme fil conducteur l’interprétation et l’utilisation par l’auteur des idées d’Antonio Gramsci au fil du temps pour analyser la formation de l’État, des classes sociales et de la politique au Brésil. Le texte développe l’hypothèse de la centralité des concepts gramsciens dans la pensée de Cardoso en trois phases de réfraction gramscienne : (i) entre 1964 et 1974, dans la thèse de l’hégémonie dépendante de la bourgeoisie au Brésil, (ii) entre 1974 et 1983, dans la défense de l’État brésilien en tant que « Prince modern » comme catégorie d’analyse de la coalition agraire-industrielle-militaire dans la période post-1964, et (iii) de 1983 à 1988, dans la formulation du transformisme autoritaire-éclairées comme comportement des élites économiques et militaires brésiliennes face à la pression pour la démocratisation du régime. L’utilisation par Cardoso des concepts gramsciens est créative à tous ces moments. En d’autres termes, le penseur brésilien s’inspire des concepts gramsciens pour créer son propre lexique d’analyse de la politique brésilienne. L’article explore donc non seulement la réception, mais aussi la traduction des idées de Gramsci chez Fernando Henrique Cardoso. Larticle L article dAntonio d Antonio Brésil 19641988, 19641988 1988 , (1964-1988) linterprétation l interprétation lutilisation utilisation lauteur auteur lÉtat, lÉtat État, État lhypothèse hypothèse i (i 196 lhégémonie hégémonie ii (ii 197 danalyse analyse agraireindustriellemilitaire agraire industrielle post1964, post1964 post 1964, post-1964 iii (iii 198 autoritaireéclairées autoritaire éclairées régime Lutilisation moments dautres autres termes sinspire s inspire 1964198 (1964-1988 19 post196 post-196 196419 (1964-198 1 post19 post-19 19641 (1964-19 post1 post-1 (1964-1 post- (1964- (1964 (196 (19 (1 (

Resumen El artículo pretende investigar una trayectoria singular de recepción y traducción de las ideas de Antonio Gramsci en Brasil. Este artículo pretende reconstruir el pensamiento político de Fernando Henrique Cardoso durante la dictadura militar y la transición democrática brasileña (1964-1988), tomando como hilo conductor la interpretación y el uso que el autor hizo de las ideas de Antonio Gramsci a lo largo del tiempo para analizar la formación del Estado, las clases sociales y la política en Brasil. El texto desarrolla la hipótesis de la centralidad de los conceptos gramscianos en el pensamiento de Cardoso en tres fases de refracción gramsciana: (i) entre 1964 y 1974, en la tesis de la hegemonía dependiente de la burguesía en Brasil, (ii) entre 1974 y 1983, en la defensa del Estado brasileño como “Príncipe Moderno” como categoría de análisis de la coalición agrario-industrial-militar en el período posterior a 1964, y (iii) entre 1983 y 1988, en la formulación del transformismo autoritario-esclarecido como comportamiento de las élites económicas y militares brasileñas frente a la presión por la democratización del régimen. El uso que Cardoso hace de los conceptos gramscianos es creativo en todos estos momentos. En otras palabras, el pensador brasileño se inspira en los conceptos gramscianos para crear su propio léxico de análisis de la política brasileña. El artículo explora, por tanto, no sólo la recepción, sino también la traducción de las ideas de Gramsci en Fernando Henrique Cardoso. Brasil 19641988, 19641988 1988 , (1964-1988) gramsciana i (i 196 ii (ii 197 Príncipe Moderno agrarioindustrialmilitar agrario industrial iii (iii 198 autoritarioesclarecido autoritario esclarecido régimen momentos palabras explora tanto 1964198 (1964-1988 19 196419 (1964-198 1 19641 (1964-19 (1964-1 (1964- (1964 (196 (19 (1 (

Abstract This article aims to investigate a unique path in the reception and translation of Antonio Gramsci’s ideas in Brazil. This work attempts to reconstruct Fernando Henrique Cardoso’s political thought during the Brazilian military dictatorship and democratic transition (1964-1988), focusing on his interpretation and use of Antonio Gramsci’s ideas to analyze state formation, social classes and politics in Brazil. The paper argues that the Gramscian concepts are central to Cardoso’s political thought in three phases of Gramscian refraction: (i) between 1964 and 1974, in the thesis of the Brazilian bourgeoisie’s dependent hegemony; (ii) between 1974 and 1983, in the argument of the Brazilian state as the “Modern Prince” as a concept for the analysis of the agrarian-industrial-military coalition in the post-1964 period; and (iii) from 1983 to 1988, in the definition of the Brazilian economic and military elites’ behavior as a authoritarian-scletortic transformism in the face of the pressures for the democratization of the political regime. Cardoso’s uses of Gramscian concepts are creative at all these moments. That is, the Brazilian thinker draws on Gramscian concepts to create his own lexicon to employ in the analysis of Brazilian politics. The article therefore explores not only the reception, but also the translation of Gramsci’s ideas in Fernando Henrique Cardoso. Gramscis Gramsci s Brazil Cardosos Cardoso 19641988, 19641988 1988 , (1964-1988) formation refraction i (i 196 bourgeoisies bourgeoisie hegemony ii (ii 197 Modern Prince agrarianindustrialmilitary agrarian industrial post1964 post post-196 period iii (iii 198 elites authoritarianscletortic authoritarian scletortic regime moments is 1964198 (1964-1988 19 post196 post-19 196419 (1964-198 1 post19 post-1 19641 (1964-19 post1 post- (1964-1 (1964- (1964 (196 (19 (1 (

Resumo O artigo tem como objetivo investigar um percurso singular de recepção e tradução das ideias de Antonio Gramsci no Brasil. Este trabalho visa reconstruir o pensamento político de Fernando Henrique Cardoso durante a ditadura militar e a transição democrática brasileira (1964-1988) tomando como fio condutor a interpretação e uso que esse autor faz das ideias de Antonio Gramsci ao longo do tempo para a análise da formação do Estado, das classes sociais e da política no Brasil. O texto desenvolve a hipótese da centralidade dos conceitos gramscianos no pensamento de Cardoso em três fases de refração gramsciana: i) entre 1964 e 1974, na tese da hegemonia dependente da burguesia no Brasil, ii) entre 1974 e 1983, na defesa do Estado brasileiro como “Príncipe Moderno” enquanto categoria para análise da coalizão agrário-industrial-militar no pós-1964, e iii) de 1983 a 1988, na formulação do transformismo autoritário-esclarecido como comportamento das elites econômicas e militares brasileiras diante da pressão pela democratização do regime. Os usos dos conceitos gramscianos em Cardoso são criativos em todos esses momentos. Isto é, o pensador brasileiro se inspira nos conceitos gramscianos para criar seu próprio léxico a ser utilizado na análise da política brasileira. O artigo explora, portanto, não apenas a recepção, mas também a tradução das ideias de Gramsci em Fernando Henrique Cardoso. Brasil 19641988 1988 (1964-1988 gramsciana i 196 ii 197 Príncipe Moderno agrárioindustrialmilitar agrário industrial pós1964, pós1964 pós 1964, pós-1964 iii 198 autoritárioesclarecido autoritário esclarecido regime momentos é explora portanto 1964198 (1964-198 19 pós196 pós-196 196419 (1964-19 1 pós19 pós-19 19641 (1964-1 pós1 pós-1 (1964- pós- (1964 (196 (19 (1 (

Résumé Ce commentaire critique la reproduction de la croyance erronée selon laquelle l’économie mainstream est identique à l’économie néoclassique et celle-ci, à son tour, est identique à l’économie (néo)libérale. Le rejet de ces égalités complique les relations entre l’économie mainstream, orthodoxe et hétérodoxe. Le commentaire soutient également que le cas du Brésil diffère de celui des États-Unis, car plusieurs idées économiques marginalisées aux États-Unis jouissent de prestige et d’influence dans le milieu académique brésilien, ce qui rend le concept même d’économie mainstream plus ambigu. Tout cela implique plusieurs divergences par rapport à l’article récent de Francisco Marques (2024). D’autres différences sont soulignées en ce qui concerne l’utilisation des mathématiques, de la statistique et de l’économétrie, ainsi que l’interdisciplinarité. Le résultat est une vision plus complexe de l’académie économique aux États-Unis et surtout au Brésil. Le commentaire identifie également et corrige les principales distorsions dans la traduction que Marques fait d’un passage relativement long de Dequech (2018). léconomie l économie celleci, celleci celle ci, ci celle-ci tour néolibérale. néolibérale néo libérale. libérale (néo)libérale hétérodoxe ÉtatsUnis, ÉtatsUnis États Unis, Unis dinfluence d influence brésilien déconomie ambigu larticle article 2024. 2024 . (2024) Dautres D autres lutilisation utilisation mathématiques léconométrie, léconométrie économétrie, économétrie l’économétrie linterdisciplinarité. linterdisciplinarité interdisciplinarité. interdisciplinarité l’interdisciplinarité lacadémie académie dun un 2018. 2018 (2018) 202 (2024 201 (2018 20 (202 (201 2 (20 (2 (

Abstract This comment criticizes the reproduction of the mistaken belief that mainstream economics is equal to neoclassical economics and that the latter, in turn, is equal to (neo)liberal economics. The rejection of those equalities turns the relations among mainstream, orthodox and heterodox economics more difficult. The comment also claims that the Brazilian case is different from the American one, since several economic ideas marginalized in the United States have both prestige and influence in the Brazilian academy, which makes the concept of mainstream economics itself more ambiguous. All that implies many divergences regarding the recent article by Francisco Marques (2024). Other differences are pointed out regarding the use of math, statistics and econometry, as well as interdisciplinarity. The result is a more complex view of the economics academy in the United States and mainly in Brazil. The comment also identifies and corrects the main distortions in the translation that Marques made of a relatively long excerpt of Dequech (2018). latter turn neoliberal neo liberal difficult one ambiguous 2024. 2024 . (2024) math econometry interdisciplinarity Brazil 2018. 2018 (2018) 202 (2024 201 (2018 20 (202 (201 2 (20 (2 (

Resumen Este comentario critica la reproducción de la creencia errónea de que la economía mainstream es igual a la economía neoclásica y que la economía neoclásica es igual a la economía (neo)liberal. El rechazo de estas igualdades complica las relaciones entre la economía mainstream, ortodoxa y heterodoxa. El comentario también argumenta que el caso de Brasil es diferente al de EE.UU., ya que varias ideas económicas marginadas en EE.UU. tienen prestigio e influencia en el mundo académico brasileño, lo que hace que el propio concepto de economía mainstream sea más ambiguo. Todo ello implica varias divergencias con respecto al reciente artículo de Francisco Marques (2024). Otras diferencias son señaladas acerca del uso de las matemáticas, la estadística y la econometría, así como de la interdisciplinaridad. El resultado es una visión más compleja del mundo académico económico en Estados Unidos y, sobre todo, en Brasil. El comentario también identifica y corrige las principales distorsiones en la traducción de Marques de un extracto relativamente largo de Dequech (2018). neoliberal. neoliberal neo liberal. liberal (neo)liberal heterodoxa EEUU EE UU EE.UU brasileño ambiguo 2024. 2024 . (2024) matemáticas econometría interdisciplinaridad todo 2018. 2018 (2018) 202 (2024 201 (2018 20 (202 (201 2 (20 (2 (

Resumo Este comentário critica a reprodução da crença equivocada de que a economia mainstream é igual à economia neoclássica e de que esta, por sua vez, é igual à economia (neo)liberal. A rejeição dessas igualdades complica as relações entre economia mainstream, ortodoxa e heterodoxa. O comentário argumenta também que o caso do Brasil é diferente do americano, pois várias ideias econômicas que são marginalizadas nos Estados Unidos têm prestígio e influência na academia brasileira, o que torna o próprio conceito de economia mainstream mais ambíguo. Tudo isso implica várias divergências em relação ao artigo recente de Francisco Marques (2024). Outras diferenças são apontadas no que se refere ao uso de matemática, estatística e econometria e à interdisciplinaridade. O resultado é uma visão mais complexa da academia de economia nos Estados Unidos e sobretudo no Brasil. O comentário também identifica e corrige as principais distorções na tradução que Marques faz de um trecho relativamente longo de Dequech (2018). esta vez neoliberal. neoliberal neo liberal. liberal (neo)liberal heterodoxa americano brasileira ambíguo 2024. 2024 . (2024) matemática interdisciplinaridade 2018. 2018 (2018) 202 (2024 201 (2018 20 (202 (201 2 (20 (2 (

Résumé Cet article a pour but de démontrer la pertinence de l´approche transversale des chiffres et des cartes afin de mettre en évidence le pouvoir performatif qui se dégage de leurs intersections tecnhopolitiques telles que le concept de densité de population et la régionalisation du territoire. Appliquée au Brésil, l´étude croisée met en lumière des aspects du processus de construction de l´État, de la centralisation de l´autorité politique et de la création de nouvelles catégories de personnes et d´espaces de gouvernement. Pour ce faire, les tendances qui ont rapproché la statistique et la cartographie au cours de l´Empire brésilien y sont annalysées, en comprenant leur rôle en tant qu´instruments descriptifs du pouvoir souverain. De même, l´article aborde les circonstances qui conduissent à l´importance croissante des chiffres et des cartes comme une référente commune pour l´action collective et la production d´identités sociales. Basé sur le cadre de la sociologie de la quantification, l´article s´intéresse à l´émergence de la cartographie statistique et la régionalisation croissante des données officielles entre les années 1920 et 1940, liée à une nouvelle façon de definir la «brésilité », d´ordonner le territoire et de gouverner la population. On conclut que quantifier, c´est aussi visualiser et imaginer des grandeurs démographiques et économiques dans une spatialité cohérente et unitaire une fois stabilisée par des conventions d´équivalence. lapproche l approche Brésil létude étude lÉtat État l´État lautorité autorité despaces d espaces gouvernement faire lEmpire Empire annalysées quinstruments qu instruments souverain même larticle limportance importance laction action didentités identités sociales quantification sintéresse s intéresse lémergence émergence 192 1940 brésilité » dordonner ordonner quantifier cest c est déquivalence équivalence d´équivalence 19 194 1

Abstract This article takes a cross-disciplinary approach to numbers and maps to demonstrate the performative power that emerges from their technopolitical intersections, such as the concept of population density and regional delineation of territory. Applied to the Brazilian context, this combined analysis sheds light on aspects related to the construction of State authority and its power to create categories of people and places. To do so, this paper examines trends that bring statistics and cartography together in the Brazilian Empire, indicating a common status for maps and numbers as descriptive instruments of sovereign power, including their modes of use and conditions for producing and validating truth. Subsequently, it addresses the factors leading to the growing importance of numbers and maps for collective action and the production of shared identities. Drawing on references from the sociology of quantification, this paper focuses on the emergence of statistical cartography and the increasing regionalization of official data between the 1920s and 1940s – linked to a new way of defining Brazilian identity, organizing territory, and managing population. It concludes that quantifying is also visualizing demographic and economic quantities in a coherent and unitary spatiality, once stabilized by conventions of equivalence. crossdisciplinary cross disciplinary intersections territory context places so Empire truth Subsequently identities quantification s identity spatiality equivalence

Resumen Este artículo realiza un abordaje cruzado de números y mapas con el fin de evidenciar el poder performativo que emerge de sus intersecciones tecnopolíticas, como el concepto de densidad poblacional y el recorte regional del territorio. Aplicado al caso brasilero, el análisis combinado ilustra aspectos relativos a la construcción de la autoridad del Estado y su poder de crear categorías de personas y lugares. Para ese propósito, examinamos las tendencias que aproximan la estadística de la cartografía en Brasil Imperio y que indican un estatuto común a mapas y números como instrumentos descriptivos del poder soberano, sus modalidades de uso y sus condiciones de producción y validación de la verdad. Luego, abordamos los factores que conducen a la creciente importancia de los números y de los mapas para la acción colectiva y para la producción de identidades compartidas. Con base en las referencias de la sociología de la cuantificación, nos enfocamos en la emergencia de la cartografía estadística y en la creciente regionalización de los datos oficiales entre las décadas de 1920 y 1940, vinculadas a un nuevo modo de definir la “brasilidad”, ordenar el territorio y administrar la población. Concluimos que cuantificar es también visualizar cantidades demográficas y económicas en una espacialidad coherente y unitaria, una vez estabilizada por convenciones de equivalencia. tecnopolíticas brasilero lugares propósito soberano verdad Luego compartidas cuantificación 192 1940 brasilidad, brasilidad , “brasilidad” población unitaria equivalencia 19 194 “brasilidad 1

Resumo Este artigo realiza uma abordagem cruzada de números e mapas de modo a evidenciar o poder performativo que emerge de suas interseções tecnopolíticas, como o conceito de densidade populacional e o recorte regional do território. Aplicada ao caso brasileiro, a análise combinada ilumina aspectos relativos à construção da autoridade do Estado e seu poder de criar categorias de pessoas e lugares. Para tanto, examinamos as tendências que aproximam a estatística da cartografia no Brasil Império e que indicam um estatuto comum a mapas e números enquanto instrumentos descritivos do poder soberano, como suas modalidades de uso, e suas condições de produção e validação da verdade. Na sequência, abordamos os fatores que levam à crescente importância dos números e dos mapas para a ação coletiva e para a produção de identidades compartilhadas. Com base nas referências da sociologia da quantificação, enfocamos a emergência da cartografia estatística e a crescente regionalização dos dados oficiais, entre as décadas de 1920 e 1940, ligadas a um novo modo de definir a brasilidade, ordenar o território e gerir a população. Concluímos que quantificar é também visualizar quantidades demográficas e econômicas em uma espacialidade coerente e unitária, uma vez estabilizada por convenções de equivalência. tecnopolíticas brasileiro lugares tanto soberano uso verdade sequência compartilhadas quantificação oficiais 192 1940 brasilidade população unitária equivalência 19 194 1

The use of materials such as organofunctionalized silica for application in solid phase extraction (SPE) allows the preconcentration of several ions, including Pt, and subsequent detection. This work aims to synthesize and characterize an organofunctionalized silica (Sil-TMSDT) with the silylant N’(trimethoxysilyl)propylethylenetriamine and its application as a solid phase in the preconcentration Pt4+ ions in aqueous media, using detection by flame atomization atomic absorption spectroscopy (FAAS). The Fourier-transform infrared spectroscopy (FTIR) spectra and scanning electron microscopy (SEM) coupled with energy-dispersive spectroscopy (EDS) confirmed the aminofunctionalization of the silica. For the adsorption process, a preconcentration mini-column with 200 mg of Sil-TMSDT, a solution of 0.485 mg L−1 of K2[PtCl6] at pH 10 and HNO3 0.5 mol L−1 as eluent were used, obtaining an enrichment factor of 15-fold with retention efficiency higher than 99%. The Pt4+ ion determined by FAAS showed a linear response between 0.02 and 0.40 mg L−1; a linear coefficient where R = 0.9981; a 16-fold preconcentration factor; a limit of quantification (LOQ) and limit of detection (LOD) of 0.045 and 0.014 mg L−1, respectively. The proposal system showed analytical applicability to determining Pt4+ ion in an aqueous medium and could be used to detect traces of this potentially toxic metal in biological fluids such as urine and blood. SPE (SPE Pt SilTMSDT Sil TMSDT (Sil-TMSDT Ntrimethoxysilylpropylethylenetriamine N trimethoxysilyl propylethylenetriamine Pt4 media FAAS. . (FAAS) Fouriertransform Fourier transform FTIR (FTIR SEM (SEM energydispersive energy dispersive EDS (EDS process minicolumn mini column 20 SilTMSDT, TMSDT, Sil-TMSDT 0485 0 485 0.48 L1 L 1 L− K2PtCl6 KPtCl K2 PtCl6 K PtCl K2[PtCl6 HNO 05 5 0. 15fold fold 15 99 99% 002 02 0.0 040 40 0.4 0.9981 09981 9981 16fold 16 LOQ (LOQ LOD (LOD 0045 045 0.04 0014 014 0.01 respectively blood (FAAS 2 048 48 K2PtCl K2[PtCl 9 00 04 4 0.998 0998 998 004 001 01 0.99 099 0.9 09

Bisphenol A (BPA), an endocrine disruptor used in different commercial polymers, is a persistent pollutant commonly found in effluents. Conventional wastewater treatment processes have low chemical removal efficiency and are expensive. This work evaluated BPA removal using laccase enzyme produced from white rot fungus Pleurotus ostreatus. For the enzymatic production, residues of acai berry and pineapple were used as laccase inducers. The use of natural inducers led to a high enzyme production (1139 and 1031 U mL−1 to acai and pineapple, respectively). Bisphenol A was removed to a concentration lower than LOD (limit of detection) after 4 h. The degradation mechanism of BPA occurred by oxidation of methyl to hydroxymethyl group in a propane portion, with breakdown of the aromatic ring. The developed technology brought to the scene a new green, viable methodology, using vegetable waste, adding value to these residues and bringing an alternative to the BPA treatment. BPA, , (BPA) polymers effluents expensive ostreatus 1139 (113 103 mL1 mL 1 mL− respectively. respectively . respectively) limit detection h portion ring green methodology waste (BPA 113 (11 10 11 (1 (

The study of atomic spectroscopy has a profound relationship with quantum mechanics and its comprehension. Since Bohr’s success with a theory for the atom, it has been established that spectrum lines originate from transitions between different states. Moreover, the analysis of complex spectra reveals that there are groups of spectral lines that compose what is called a multiplet. To rationalize the multiplet structure, we need models to characterize and label the quantum states. The characterization of the atomic states is a common subject in classes of physical chemistry and inorganic chemistry, and there are basically two approaches to infer and label the energy states: (i) the LS coupling scheme and (ii) the jj coupling scheme. Usually, only the LS coupling is presented, and this ends up omitting its underlying assumptions. Here, we present a survey of both approaches, highlighting their premises and their adequacy towards different groups of the periodic table, ions, and excited states configurations. We show that by using benchmark data together with the Landé interval rule, the appropriate use of the jj coupling to understand the atomic spectra of heavier atoms is easily conveyed. comprehension Bohrs Bohr s atom Moreover structure i (i ii (ii Usually presented assumptions Here table ions configurations rule conveyed

We report the electrochemical potential of conductive filaments produced with recycled polylactic acid (rPLA) alongside a mixture of graphite (Gpt) and/or carbon black (CB) and castor oil to create an electrode ready-to-use. Additively-manufactured electrodes (AMEs) were compared with commercial-conductive filament composed of PLA and CB. The Gpt-CB-rPLA and CB-rPLA sensors showed lower charge-transfer resistance (Rct) and a greater heterogenous rate constant, k0, (Rct= 1040 ± 50 Ω and 1810 ± 30 Ω and k0= 6.91 (± 0.58) × 103 and 5.31 (± 0.40) × 103 cm s-1, respectively) compared to the sensor from the commercial filament (Rct = 9620 ± 280 Ω and k0 = 3.62 (± 0.38) ×10-3 cm s-1). The electrochemical response of [Fe(CN6)]3-/4- displayed a peak-to-peak separation of 180 ± 8 mV (Gpt-CB-rPLA) and 240 ± 6 mV (CB-rPLA) compared to commercial AME (740 ±10 mV), without any surface treatment. The filaments were used to create a 2,4,6-trinitrotoluene (TNT) detection platform with linear range of 5-20 and 5-100 µmol L-1 for Gpt-CB-rPLA and CB-rPLA, respectively. The collector-detector device was applied for the analysis of a blast simulation. Finally, it is worth noting that the results obtained are without electrode treatment/activation, indicating that the rough surface of the additively manufactured electrode is an additional feature of the device for collecting explosive residues, simply by rubbing the additively manufactured platform on different surfaces in crime scenarios. rPLA (rPLA Gpt (Gpt andor or CB (CB readytouse. readytouse ready use. use ready-to-use Additivelymanufactured Additively AMEs (AMEs commercialconductive GptCBrPLA CBrPLA chargetransfer charge transfer Rct constant k Rct= 104 5 181 3 691 91 6.9 ( 0.58 058 0 58 10 531 31 5.3 0.40 040 40 s1, s1 s 1, 1 s-1 respectively 962 28 362 62 3.6 0.38 038 38 ×103 ×10 ×10- s1. . s-1) FeCN63/4 FeCN634 FeCN Fe CN6 /4 4 CN [Fe(CN6)]3-/4 peaktopeak peak 18 (Gpt-CB-rPLA 24 (CB-rPLA 740 (74 ±1 mV, , mV) treatment 2,4,6trinitrotoluene 246trinitrotoluene trinitrotoluene 2,4,6 2 TNT (TNT 520 20 5-2 5100 100 5-10 L1 L L- CBrPLA, rPLA, collectordetector collector detector simulation Finally treatmentactivation activation treatment/activation residues scenarios 69 9 6. 0.5 05 53 5. 0.4 04 s- 96 36 3. 0.3 03 ×1 FeCN63 FeCN63/ / [Fe(CN6)]3-/ 74 (7 6trinitrotoluene 246 2,4, 52 5- 510 5-1 0. FeCN6 [Fe(CN6)]3- 7 2,4 51 [Fe(CN6)]3 2, [Fe(CN6)] [Fe(CN6) [Fe(CN6 [Fe(CN

ABSTRACT Proper waste management is a major worldwide concern; waste is disposed of directly into the environment, affecting water, soil and air quality. The development and production of green energy sources is strongly encouraged in modern society. The aim of this study, in accordance with Sustainable Development Goals (SDGs) 1, 2 and 7 of the 2030 Agenda of the UN, is to combine the correct disposal of animal waste with the generation of energy to mitigate the energy insecurity of families in an extremely vulnerable semi-arid region in the north-east of the country using biodigesters. To this end, a conceptual proposal was drawn up for a low-cost, easy-to-maintain and easy-to-use biodigester. A small-scale prototype was used to assess its operation by evaluating the main factors that affect biogas production (pH, temperature and the biomass properties: total solids, fixed solids, volatile solids, concentration of volatile fatty acids and C/N ratio). Evaluation of the test prototype gave satisfactory results that corroborate other studies and make it possible to propose an economically viable and efficient full-scale biodigester for biogas production. concern environment water quality society study SDGs (SDGs 1 203 UN semiarid semi arid northeast north east biodigesters end lowcost, lowcost low cost, cost low-cost easytomaintain easy maintain easytouse use smallscale small scale pH, pH (pH properties solids CN C N ratio. ratio . ratio) fullscale full 20

ABSTRACT Given the large differences in the results of inoculation and co-inoculation in the bean crop, an experiment in cultivating winter beans was carried out in 2019 under greenhouse conditions with the aim of evaluating the performance of the beans and a possible increase in plant growth and grain production, using seeds inoculated or co-inoculated with Rhizobium tropici and Azospirillum brasilense, with and without fungicide and/or insecticide, in sandy and clayey soils. A total of 112 pots were used, and 14 treatments were applied in a completely randomised experimental design, with four replications. The Scott-Knott test was used to analyse the results, and showed that whether using untreated seeds or carrying out complete chemical treatment with fungicide and insecticide plus co-inoculation with R. tropici and A. brasilense, winter bean production was reduced in clayey soil, while the joint use of fungicide and insecticide, fungicide and R. tropici, or fungicide, insecticide and R. tropici, favoured shoot development. Inoculating with A. brasilense, without R. tropici and with insecticide, or insecticide and fungicide, favoured greater root growth in clayey soil. In sandy soil, grain production was higher using seeds treated solely with insecticide, solely with R. tropici, or with a combination of both. Production was lower in the joint treatment with fungicide, insecticide and the co-inoculation of bacteria, or when using insecticide together with A. brasilense. coinoculation co crop 201 coinoculated brasilense andor soils 11 1 design replications ScottKnott Scott Knott R soil development both bacteria 20 2

The focus of this manuscript is to present the extension project “(Re)thinking the (in)differences: the deconstructions and resistance to transversal themes in the teaching of Natural Sciences”, as well as analyzing its potential when working with continued training work by teachers, promoting debate, discussion, and reflection on the use of contemporary cross-cutting themes in chemistry and science classes. It was also intended to stimulate class planning, the production of strategies and teaching material by educators motivated by the need to reform thinking and regenerate teaching, considering social themes that seek the empowerment of groups placed on the margins of the education system, so that they undertake training that is a collective achievement and built with social discussions. Rethinking Re indifferences differences (in)differences Sciences, Sciences , Sciences” teachers debate discussion crosscutting cross cutting classes planning system discussions

RESUMO: O objetivo deste trabalho foi extrair lignina de Eucalyptus sp. licor negro kraft e avaliar a influência de sua adição nas propriedades do adesivo lignina-fenol-formaldeído. Os adesivos foram sintetizados em diferentes porcentagens de massa de fenol por lignina, denominados adesivos lignina-fenol-formaldeído nas proporções de 25, 30, 50, 75 e 80%. Os parâmetros avaliados nos adesivos foram pH, teor de sólidos totais, teor de compostos orgânicos, teor de compostos inorgânicos, tempo de gelatinização e comportamento do adesivo na linha de cola. O pH variou de 10,63 a 11,65. Para o teor de sólidos totais foi encontrado o valor de 53 a 69%. Os teores de compostos orgânicos variaram de 51 a 75% e de inorgânicos de 25 a 49%. Observou-se que com a adição da macromolécula na formulação do adesivo, o teor de sólidos totais e orgânicos foi reduzido proporcionalmente enquanto o de sólidos inorgânicos foi elevado. O tempo de gelatinização foi reduzido devido à adição de lignina. As menores proporções de adição apresentaram melhor penetração e fluidez na interface com a madeira. A lignina kraft extraída do licor negro kraft de eucalipto é um ótimo adesivo com potencial para substituir parcialmente o fenol derivado do petróleo, com grande potencial para uso e aplicação nos setores aeronáutico e automotivo, no processo de colagem de peças estruturais. RESUMO sp ligninafenolformaldeído. ligninafenolformaldeído formaldeído. formaldeído 30 50 7 80 80% cola 1063 10 63 10,6 1165 11 65 11,65 5 69 69% 2 49 49% Observouse Observou se elevado madeira petróleo automotivo estruturais 3 8 106 1 6 10, 116 11,6 4 11,

ABSTRACT: The objective of this research was to extract lignin from Eucalyptus sp. kraft black liquor and to evaluate the influence of its addition on the properties of the lignin-phenol-formaldehyde adhesive. The adhesives were synthesized at different phenol mass percentages by lignin, called lignin-phenol-formaldehyde adhesives in the proportions of 25, 30, 50, 75 and 80%. The parameters evaluated in the adhesives were pH, total solid content, organic compound content, inorganic compound content, gelatinization time and adhesive behavior in the glue line. The pH ranged from 10.63 to 11.65. For the total solid content was found the value of 53 to 69 %. The contents of organic compounds ranged from 51 to 75% and inorganic from 25 to 49%. It was observed that with the addition of macromolecule in the adhesive formulation, the total and organic solid content was reduced proportionally while the inorganic solid was high. The gelatinization time was reduced due to the addition of lignin. The lower proportions of addition presented better penetration and fluidity in interface with the wood. The kraft lignin extracted from eucalyptus kraft black liquor is a great adhesive with potential to partially replace petroleum-derived phenol, with great potential for use and application in the aeronautical and automotive sectors, in the bonding process of structural parts. ABSTRACT sp ligninphenolformaldehyde formaldehyde 30 50 7 80 80% line 1063 10 63 10.6 1165 11 65 11.65 5 6 % 2 49 49% formulation high wood petroleumderived petroleum derived sectors parts 3 8 106 1 10. 116 11.6 4 11.

RESUMO Objetivo: Descrever as características epidemiológicas de pacientes pediátricos com doença falciforme (DF) e avaliar o uso de plantas medicinais concomitantemente ao tratamento medicamentoso. Métodos: Realizou-se revisão de prontuários de pacientes pediátricos de uma instituição pública com nível de atendimento terciário; o critério de seleção foi ser criança ou adolescente com DF em acompanhamento pediátrico neste ambulatório. Nos prontuários dos pacientes selecionados foi procurado o registro do uso de plantas com finalidades medicinais. Resultados: Foram revisados 154 prontuários (100% dos pacientes ativos desse ambulatório): 99 crianças e 55 adolescentes. O genótipo predominante foi SS (58,4%), seguido do SC (29,2%). O uso de ao menos uma medicação para a DF foi relatada em 95,5% dos prontuários. Em 70,1% dos prontuários havia o relato do uso de plantas medicinais, em 276 citações, sendo 64 plantas citadas ao todo; destas, seis espécies foram citadas para o tratamento da doença de base (DF), sendo “ora-pro-nobis” (Pereskia aculeata) a principal. Das 276 citações de plantas medicinais nos prontuários, 60,5% incluíram o uso de plantas medicinais em sintomas gripais e/ou COVID-19 (tanto prevenção quanto tratamento), sendo relatadas 35 para este uso, exclusivamente ou não. Essa foi a principal finalidade de uso encontrada nos prontuários dos pacientes, seguida do uso para sintomas de dor (14,2% das citações). Conclusões: Notou-se que a maioria dos pacientes avaliados faz uso da medicina convencional, aliada à tradicional/ complementar/ alternativa, o que leva à necessidade de mais estudos nessas áreas, especialmente na pediatria, visando principalmente à segurança do paciente. Objetivo (DF medicamentoso Métodos Realizouse Realizou se terciário ambulatório Resultados 15 100% 100 (100 ambulatório) 9 5 adolescentes 58,4%, 584 58,4% , 58 4 (58,4%) 29,2%. 292 29,2% . 29 2 (29,2%) 955 95 95,5 701 70 1 70,1 27 6 todo destas DF, orapronobis ora pro nobis “ora-pro-nobis Pereskia aculeata 605 60 60,5 eou COVID19 COVID 19 COVID-1 tanto tratamento, tratamento) 3 não 14,2% 142 14 (14,2 citações. citações) Conclusões Notouse Notou convencional tradicional complementar alternativa áreas pediatria paciente 10 (10 58,4 (58,4% 29,2 (29,2% 95, 7 70, 60, COVID1 COVID- 14,2 (14, (1 58, (58,4 29, (29,2 14, (14 ( (58, (29, (58 (29 (5 (2

ABSTRACT Objective: The aim of this study was to describe the epidemiological characteristics of pediatric patients with sickle cell disease (SCD) and evaluate the use of medicinal plants in these patients concomitantly with their drug treatment. Methods: This is a review of the medical records of pediatric patients at a public institution with tertiary care. The selection criterion was to be a child or adolescent with SCD undergoing pediatric follow-up at this outpatient clinic. In the medical records of the patients selected, records of the use of plants for medicinal purposes were sought. Results: In total, 154 records (100% of total active patients followed in this clinic) were reviewed: 99 children and 55 adolescents. The predominant genotype was SS (58.4%), followed by SC (29.2%). The use of at least one medication for SCD was reported in 95.5% of the medical records. The use of medicinal plants was reported by 70.1% of patients, with 276 citations in the medical records referring to 64 different types of plants. Six plants were used for the treatment of SCD, the main one being Lemonvine/Ora-pro-nóbis (Pereskia aculeata). The use of medicinal plants was reported for flu-like symptoms and/or COVID-19 (both for prevention and treatment) by 60.5% of the citations, with 35 different plants reported for this use, exclusively or not. This use was followed by pain symptoms (14.2% of citations). Conclusions: The majority of patients in this study use both conventional and traditional/complementary/alternative medicine, highlighting the need for more studies in the area, with a special focus on patient safety. Objective (SCD Methods care followup follow up clinic selected sought Results 15 100% 100 (100 reviewed 9 5 adolescents 58.4%, 584 58.4% , 58 4 (58.4%) 29.2%. 292 29.2% . 29 2 (29.2%) 955 95 95.5 701 70 1 70.1 27 6 Lemonvine/Orapronóbis LemonvineOrapronóbis Lemonvine/Ora pro nóbis Lemonvine Ora Pereskia aculeata. aculeata aculeata) flulike flu like andor COVID19 COVID 19 COVID-1 605 60 60.5 3 not 14.2% 142 14 (14.2 citations. citations) Conclusions traditionalcomplementaryalternative traditional complementary alternative medicine area safety 10 (10 58.4 (58.4% 29.2 (29.2% 95. 7 70. Orapronóbis LemonvineOra COVID1 COVID- 60. 14.2 (14. (1 58. (58.4 29. (29.2 14. (14 ( (58. (29. (58 (29 (5 (2

This study evaluated the potential of naphthoxazoles derived from lapachol as fluorescent deoxyribonucleic acid (DNA) probes. We synthesized three 2-substituted naphthoxazoles: one with a phenyl group (LOX1), and two with 2-hydroxyphenyl (LOX2) and 4-fluorophenyl (LOX3) groups, respectively. The compounds were synthesized using the Debus-Radziszewski reaction between the lapachol and aldehydes. The quantum yield (Φf) was determined using the classical relative method with 4’,6-diamidino-2-phenylindole (DAPI) as the standard, and the fluorescence lifetime (τf) was measured with a lifetime fluorescence spectrometer. The naphthoxazoles exhibited low fluorescence emission and consequently low values of Φf in their free form, demonstrating behavior similar to that of DAPI. These compounds displayed notably large Stokes shifts (approximately 340 nm) and the τf in the nanosecond range. DNA binding studies were conducted by monitoring changes in the absorption properties of naphthoxazoles in the absence and presence of calf thymus DNA at different concentrations. The results indicated that naphthoxazoles interacted with DNA through groove binding. LOX2 exhibited a binding constant (Kb) of 2.70 × 104 M-1, indicating strong binding to the biomolecule. These findings underscore the potential of LOX1, LOX2, and LOX3 as candidates for use as fluorescent DNA probes. (DNA probes 2substituted substituted 2 LOX1 LOX , (LOX1) 2hydroxyphenyl hydroxyphenyl (LOX2 4fluorophenyl fluorophenyl 4 (LOX3 groups respectively DebusRadziszewski Debus Radziszewski aldehydes (Φf 4,6diamidino2phenylindole 46diamidino2phenylindole diamidinophenylindole ,6 diamidino phenylindole 6 DAPI (DAPI standard (τf spectrometer form approximately 34 nm range concentrations Kb (Kb 270 70 2.7 10 M1, M1 M 1, 1 M-1 biomolecule (LOX1 (LOX 6diamidino2phenylindole 3 27 7 2. M-

The increase in the average temperature of the Earth due to excess CO2 and other greenhouse gases has caused glaciers to melt and sea levels to rise. The burning of fossil fuels is one of the main causes of this problem, so the use of biofuels is important for mitigating this environmental impact. In Brazil, biodiesel is mixed with mineral; however, irregularities have been detected, reducing the expected positive effects. Therefore, this study proposes the use of multivariate curve resolution with alternating least squares (MCR ALS) to quantify the content of methyl palm oil biodiesel in diesel blends and determine the concentration of the adulterant automotive lubricating oil in the blend. The model for quantifying biodiesel in diesel obtained R2 = 0.9997, root mean square error of calibration (RMSEC) = 0.56% (v v-1) and prediction (RMSEP) = 0.65% (v v-1), while the determination of adulteration in the biodiesel-diesel blend showed RMSEC = 0.67% (v v-1), RMSEP = 0.81% (v v-1) and R2 = 0.9992. These results demonstrate the ability of the models developed to predict both the content and quantity of possible adulterants in blends of palm oil biodiesel and mineral diesel, contributing to the quality control of this fuel. CO rise problem impact Brazil however detected effects Therefore MCR ALS R 09997 0 9997 0.9997 (RMSEC 056 56 0.56 v v1 1 v-1 (RMSEP 065 65 0.65 v1, , biodieseldiesel 067 67 0.67 081 81 0.81 09992 9992 0.9992 fuel 0999 999 0.999 05 5 0.5 v- 06 6 0.6 08 8 0.8 099 99 0.99 0. 09 9 0.9