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-

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

The inhibition of the fatty acid amide hydrolase (FAAH), an endocannabinoid system component, emerged as a potentially new therapeutic target for a range of clinical disorders such as acute and chronic pain. Some α-ketoheterocycle derivatives demonstrated interesting analgesic and anti-inflammatory activities in vitro. Ligand-Based Drug Design techniques such as knowledge graph convolutional networks (kGCN) and hologram quantitative structure-activity relationship (HQSAR) using α-ketoheterocycle derivatives from five different datasets were generated to discover the relation between the chemical structures and the inhibition activity. Meanwhile, structure-based drug design simulations as interaction fields (MIF), molecular docking, and ligand sites studies (LSI) from FAAH were performed using Autogrid software and FTmap/FTsite servers. The results of both studies were merged to propose predictive models. The resulting kGCN model demonstrated adequate accuracy area under the curve by receiver operating characteristic (AUC-ROC 0.7922). From contribution maps of the Ligand-Based Drug Design (LBDD) models and the generated probes using MIF and LSI, it was observed that the oxazole ring, the ketone group, and the apolar chain present in the structures of the inhibitors are important, besides the evidence of the Cys269 and Val270 residues importance for the potential interaction, confirmed by carried docking studies. These fragments and structural information can be used to carry out new FAAH potential inhibitors studies and report kGCN as an accurate classification technique. FAAH, , (FAAH) component pain αketoheterocycle α ketoheterocycle antiinflammatory anti inflammatory vitro LigandBased Ligand Based (kGCN structureactivity structure activity HQSAR (HQSAR Meanwhile structurebased based MIF, (MIF) LSI (LSI FTmapFTsite FTmap FTsite servers AUCROC AUC ROC 0.7922. 07922 0.7922 . 0 7922 0.7922) LBDD (LBDD ring group important Cys Cys26 Val Val27 technique (FAAH (MIF 0792 0.792 792 Cys2 Val2 079 0.79 79 07 0.7 7 0.

Abstract Standardized Work (SW) is an approach originated in the manufacturing industry, which aims to standardize and improve the efficiency of operations cycles, based on the Lean Production Philosophy. SW has the potential to support the implementation of Location-Based Planning and Control (LBPC) as it allows balancing the workload between workers or teams, contributing to the synchronization of processes. The aim of this study is to propose a method for implementing SW as an additional element of LBPC. Design Science Research was the methodological approach adopted in this investigation and an empirical study was carried out in a real estate company, in which the method for implementing SW was conceived and implemented.The following benefits were identified in the study: increase in the degree of process standardization, improvement in process synchronization, increase in the engagement of the work force with process standards, and improvement in terms of time reliability. The main contribution of this research study has been the adaptation of SW in the construction context as an additional element of LBPC. (SW industry cycles Philosophy LocationBased Location Based LBPC (LBPC teams processes company implementedThe implemented standardization standards reliability

Resumo Trabalho Padronizado (TP) é uma abordagem originária da indústria da manufatura que visa a padronizar e melhorar a eficiência dos ciclos de operações com base na Filosofia da Produção Enxuta. O TP tem o potencial de apoiar a implementação do Planejamento e Controle Baseado em Localização (LBPC), pois permite equilibrar a carga de trabalho entre os trabalhadores ou equipes, contribuindo para a sincronização de processos. O objetivo deste estudo foi desenvolver um método para implementação do TP como um elemento adicional do LBPC. Design Science Research foi a abordagem metodológica utilizada, sendo conduzido um estudo empírico em uma empresa atuante no mercado imobiliário, na qual o método para implementação do TP foi concebido e implementado. Os seguintes benefícios foram identificados no estudo: aumento do grau de padronização das operações, melhoria na sincronização entre processos, aumento do engajamento da mão-de-obra com padrões de processo, e melhoria em termos de confiabilidade em relação a prazos. A principal contribuição desta pesquisa para o avanço do conhecimento foi a adaptação da abordagem do TP ao contexto da construção civil como um elemento adicional do LBPC. (TP Enxuta LBPC, LBPC , (LBPC) equipes processos utilizada imobiliário implementado mãodeobra mão obra processo prazos (LBPC

Abstract Construction projects are highly complex systems that recurrently present discrepancies between work-as-imagined and work-as-done. Digital technologies, such as photogrammetry using UAVs (drones), are promising support tools to cope with this problem. Therefore, this study aims to evaluate the procedures for developing and assessing the quality of a 3D model generated through photogrammetry from images captured by a drone, comparing it to the as-designed BIM model. Thus, a case study was carried out in a residential low-income housing construction project in Camaçari, Brazil. Compared to the as-designed BIM 3D model, the photogrammetric model presented an average dimensional deviation of -1.68%. The model also presented issues such as occlusions and deformations. The study highlights that both this deviation and the quality of the photogrammetric model can be significantly influenced by the data collection method (e.g., quantity and resolution of photos). The study's primary contribution lies in presenting the potential of UAV usage for image capture in photogrammetry model generation. workasimagined work imagined workasdone. workasdone done. done work-as-done technologies drones, drones , (drones) problem Therefore D drone asdesigned designed Thus lowincome low income Camaçari Brazil 1.68%. 168 1 68 -1.68% deformations e.g., eg e g (e.g. photos. photos . photos) studys s generation (drones 1.68% 16 6 -1.68 e.g. (e.g 1.68 -1.6 e.g 1.6 -1. 1. -1 -

Resumo Projetos de construção são sistemas altamente complexos que apresentam recorrentemente discrepâncias entre o trabalho planejado e o trabalho realizado. Tecnologias digitais, como a fotogrametria com VANTs (drones), são ferramentas de suporte promissoras nesse contexto. Assim, este estudo tem como objetivo avaliar os procedimentos de desenvolvimento e qualidade de um modelo 3D gerado por fotogrametria através de imagens capturadas por drone, comparando-o ao modelo as-designed BIM. Para isso, realizou-se um estudo de caso em uma habitação de interesse social localizada em Camaçari-BA. Comparado ao modelo BIM projetado, o modelo fotogramétrico apresentou um desvio dimensional médio de -1,68%. O modelo também apresentou inconsistências como oclusões e deformações. O estudo mostra que tanto esse desvio como a qualidade do modelo fotogramétrico obtido podem ser consideravelmente influenciados pela forma de coleta dos dados (ex. baixa quantidade e resolução das fotos). A principal contribuição do estudo é apresentar o potencial do uso do VANT para captura de imagens para geração de um modelo de fotogrametria. realizado digitais drones, drones , (drones) contexto Assim D drone comparandoo comparando asdesigned as designed isso realizouse realizou se CamaçariBA. CamaçariBA Camaçari BA. BA Camaçari-BA projetado 1,68%. 168 1 68 -1,68% deformações ex. ex (ex fotos. fotos . fotos) (drones 1,68% 16 6 -1,68 1,68 -1,6 1,6 -1, 1, -1 -

Resumen (Objetivo) El objetivo fue analizar la composición de aves asociadas a cultivos orgánicos de cacao (Theobroma cacao) manejado debajo de 3 diferentes tipos de cobertura arbórea. (Metodología) Distribuimos 3 puntos de conteo en cada finca, para registrar todas las aves observadas y escuchadas, en muestreos de 5 minutos. Los conteos fueron realizados por triplicado, tanto en las primeras horas de la mañana como al atardecer. La diferencia en la composición de la avifauna entre las fincas fue analizada con la prueba ANOSIM. Las abundancias se transformaron por medio de la función decostand y el método Hellinger del paquete estadístico R-Vegan. La agrupación de las especies entre las plantaciones se efectuó mediante el escalamiento multidimensional no métrico (nMDS) y el índice de Bray-Curtis. La contribución de las especies a la disimilitud entre grupos fue analizada con el módulo SIMPER. Consideramos diferencias estadísticamente significativas cuando P ≤ 0,05. (Resultados) Observamos 428 individuos, clasificados en 49 especies y 23 familias. La finca donde las plantas de cacao crecen en condiciones más sombreadas, debido al desarrollo del dosel, mostró mayor cantidad de especies (34) y de individuos (146). La composición de aves varió significativamente entre las fincas (F(1,8) = 3,22; P < 0,02). La abundancia media de 19 especies (39,6 %) hizo notar diferencias significativas (P < 0,05), al comparar la finca con mayor sombra y menor sombra. (Conclusión) La composición de aves es más compleja en aquellas fincas de cacao orgánico que conservan un mayor desarrollo estructural de los árboles de dosel y que están cerca de bosque en regeneración.

Resumo (Objetivo) O objetivo foi analisar a composição das aves associadas às plantações de cacau orgânico (Theobroma cacao) manejadas sob três tipos diferentes de cobertura arbórea. (Metodologia) Distribuímos 3 pontos de contagem em cada fazenda, para registrar todas as aves observadas e ouvidas, em amostragens de 5 minutos. As contagens foram realizadas em triplicata, tanto nas primeiras horas da manhã quanto no final da tarde. A diferença na composição da avifauna entre as fazendas foi analisada com o teste ANOSIM. As abundâncias foram transformadas usando a função de costande o método Hellinger do pacote estatístico R-Vegan. O agrupamento de espécies entre as plantações foi feito usando o escalonamento multidimensional não métrico (nMDS) e o índice de Bray-Curtis. A contribuição das espécies para a dissimilaridade entre os grupos foi analisada com o módulo SIMPER. Consideramos as diferenças estatisticamente significativas quando P ≤ 0,05. (Resultados) Observamos 428 indivíduos, classificados em 49 espécies e 23 famílias. A fazenda onde as plantas de cacau crescem em condições mais sombreadas, devido ao desenvolvimento do dossel, apresentou um número maior de espécies (34) e indivíduos (146). A composição das aves variou significativamente entre as fazendas (F(1,8) = 3,2 apresentou diferenças significativas (P < 0,05) n; Paco< 0, mpa 02). A abundância média de 19 espécies (39,6%) ração entre a fazenda mais sombreada e a menos sombreada. (Conclusão) A composição das avesé mais complexa nas fazendas de cacau orgânico que mantêm árvores de dossel mais desenvolvidas estruturalmente e estão próximas à floresta em regeneração.

Abstract (Objective) The objective of this investigation was to analyze the composition of birds associated with organic cocoa (Theobroma cacao) crops managed under 3 different types of tree cover. (Methodology) Three census points were established in each farm to record all birds observed and heard in 5-minute sample periods. Counts were conducted in triplicate, both in the early morning and at dusk. Differences in avifauna composition between farms were analyzed using the ANOSIM test. Abundances were transformed using the Decostand function and the Hellinger method in the R-Vegan statistical package. Analysis of clustering of species among plantations was performed using non-metric multidimensional scaling (nMDS) and the Bray-Curtis index. Contribution of species to the dissimilarity between groups was analyzed with the SIMPER module. Statistically significant differences were considered when P ≤ 0.05. (Results) Four hundred and twenty-eight individuals were observed, and classified into 49 species and 23 families. The farms where cocoa plants grow in shadier conditions due to canopy development showed a higher number of species (34) and individuals (146). Bird comp P < 0.02). The mean abundance of 19 species osit (39.ion 6%) varied significantly between farms (F (1,8) = 3.22; showed significant differences (P < 0.05) when comparing the farms with the most and least shade. (Conclusion) Bird composition is more complex on organic cocoa farms, which have more developed canopies and are near regenerating forests.

Resumen Costa Rica por las características de su territorio, puede ofrecer en su actividad turística, servicios modernos, creativos e innovadores, basados en el conocimiento, que utilizan alta tecnología y/o cuentan con mano de obra calificada. Datos del BCCR, indican que el porcentaje del aporte en la última década de la actividad turística al PIB, fue de aproximadamente 5%, por ello, se presenta una ruta para un desarrollo sostenible e inclusivo, que posibilite empleos de calidad y favorezca una mejor redistribución de la riqueza entre los habitantes de Costa Rica, enmarcada con el compromiso de los ODS, un adecuado control de las variables macroeconómicas del mercado interno e internacional; y con una modificación de la ley general de turismo, con el propósito de que exista un ente rector de la actividad que posibilite una mejor coordinación y gestión de la actividad y su aporte al desarrollo.

Resumo A Costa Rica, devido às características de seu território, pode oferecer em sua atividade turística serviços modernos, criativos e inovadores, baseados no conhecimento, que utilizam alta tecnologia e/ou contam com mão de obra qualificada. Dados do BCCR indicam que a porcentagem da contribuição da atividade turística para o PIB na última década foi de aproximadamente 5%. Portanto, apresenta-se uma rota para um desenvolvimento sustentável e inclusivo, que possibilite empregos de qualidade e favoreça uma melhor redistribuição da riqueza entre os habitantes da Costa Rica, alinhada com o compromisso dos ODS, um controle adequado das variáveis macroeconômicas do mercado interno e internacional; e com uma modificação da lei geral de turismo, com o propósito de existir uma entidade reitora da atividade que permita um melhor coordenação e gestão da atividade e sua contribuição para o desenvolvimento.

Summary Costa Rica, due to the characteristics of its territory, can offer modern, creative and innovative services in its tourism, based on knowledge, that use high technology and/or have qualified labor. Data from the BCCR indicates that, in the last decade, the percentage of tourism contribution to GDP was approximately 5%, therefore, a route is presented for sustainable and inclusive development, which enables quality jobs and promotes better redistribution of wealth among the inhabitants, framed with the commitment to the SDGs, adequate control of the macroeconomic variables of the domestic and international market; and changing the general tourism law, with the aim to have an activity governing body oriented to better coordination and management and its contribution to development.

Abstract What and how did the writers of the first centuries of the Italian language read? Thanks to the influence of what readings did you compose your works? In the case of Boccaccio and Petrarch, the answer to this question was found in the books they owned and in which in many cases they made notes. Of Dante, on the other hand, we do not possess either the books or a single word written in his handwriting: we can only imagine the appearance of his handwriting thanks to the description that Leonardi Bruni left of it, probably based on a Dantesque autograph, now lost. Given this lack of data, Dante’s sole mention of his own training is of great importance, that is, the passage from the Convivio in which he narrates that he undertook philosophical studies immediately after the death of Beatrix, prompted by the reading of the Consolatio Philosophiae of Boethius to go for thirty months “to the schools of the religious and to the disputes of the philosophers” (Conv. II, XII, 1-7). The schools frequented by the Poet can be identified with the conventual Studia of Florence, that is, the Franciscan of Santa Croce, the Dominican of Santa Maria Novella and the Augustinian of Santo Spirito, unique places of conservation of books and education, in addition to the teaching by isolated private teachers like Brunetto Latini. Among these institutions, home to lively cultural activity, philosophical disputes and study, the historical data attributable to Dante favors Santa Croce, whose books (today preserved mainly in the Biblioteca Medicea Laurenciana and in the National Central Library of Florence) document the physiognomy in which the texts he read were offered to his eyes and were models of his works. This contribution traces a journey through the precious bibliographic heritage of the Franciscan Studium, with the aim of reconstructing and documenting the circulation of Dante’s works in his homeland and the Florentine context in which the poet’s extraordinary cultural formation took place.

Resumen ¿Qué y cómo leían los escritores de los primeros siglos de la lengua italiana? ¿Bajo la influencia de qué lecturas compusieron sus obras? En el caso de Boccaccio y Petrarca, la respuesta a esta pregunta se encontró en los libros que poseían y en los que, en muchos casos, hicieron anotaciones. De Dante, en cambio, no poseemos ni los libros ni una sola palabra escrita de su puño y letra: sólo podemos imaginar el aspecto de su caligrafía gracias a la descripción que de ella dejó Leonardi Bruni, probablemente basada en un autógrafo dantesco, hoy perdido. Dada esta ausencia de datos, cobra gran importancia la única mención de Dante a su propia formación, es decir, el pasaje del Convivio en el que narra que emprendió estudios filosóficos inmediatamente después de la muerte de Beatriz, impulsado por la lectura de la Consolatio Philosophiae de Boecio para ir durante treinta meses “a las escuelas de los religiosos y a las disputas de los filósofos” (Conv. II, XII, 1-7). Las escuelas frecuentadas por el Poeta se pueden identificar con los Studia conventuales de Florencia, es decir, la franciscana de Santa Croce, la dominicana de Santa Maria Novella y la agustina de Santo Spirito, únicos lugares de conservación de libros y educación, además de la enseñanza privada de profesores aislados como Brunetto Latini. Entre estas instituciones, sedes de una animada actividad cultural, de disputas filosóficas y de estudio, los datos históricos atribuibles a Dante favorecen a Santa Croce, cuyos libros (hoy conservados principalmente en la Biblioteca Medicea Laurenciana y en la Biblioteca Nacional Central de Florencia) documentan los textos que leía y eran modelos de sus obras. Esta contribución traza un recorrido por el preciado patrimonio bibliográfico del Studium franciscano, con el objetivo de reconstruir y documentar la circulación de las obras de Dante en su patria y el contexto florentino en el que tuvo lugar la extraordinaria formación cultural del poeta.

Resumen Objetivo: cuantificar la incertidumbre asociada con la estimación del valor actual del ciclo económico. Metodología: se emplea el filtro de Baxter y King en una serie de tiempo ampliada con proyecciones, asumiendo caminata aleatoria, y se construyen intervalos de confianza para el ciclo de manera analítica y con bootstrap. Limitaciones: la calidad de los intervalos de confianza se deteriora en presencia de cambio estructural en la serie de tiempo. Originalidad: la originalidad subyace en proponer una metodología para determinar la fase actual del ciclo económico de manera conjunta con una cuantificación de la incertidumbre respecto a tal medición. Conclusión: para Costa Rica, el método propuesto conduce a estimaciones del ciclo económico menos sensibles a nuevos datos que lo obtenido con el filtro de Hodrick y Prescott, y simulaciones muestran que los intervalos de confianza propuestos proveen la confianza nominal especificada.

Abstract Objetive: To quantify the uncertainty associated to the estimation of the current value of the business cycle. Methodology: The Baxter and King filter is applied to an time series expanded with forecasts, assuming a random walk, and confidence intervals are build for the cyclical component both analytically and using bootstrap. Limitations: The quality of the confidence 1 intervals deteriorates when there is a structural break in the time series. Originality: The original contribution of this article is a proposed methodology to jointly determined the current phase of the business cycle and the uncertainty associated with such measurement. Conclusions: For Costa Rica, the proposed method provides estimations of the business cycle that are less sensitive to new data points than the Hodrick and Prescott filter, and simulations show that the proposed confidence intervals provide the specified nominal confidence.

Abstract The shear behavior of reinforced concrete beams, particularly those with steel fiber reinforced concrete (SFRC), remains a challenge for the scientific community, as it involves complex material behavior. However, the advancement of the digital image correlation (DIC) technique has facilitated the acquisition of essential experimental data for modeling the mechanical behavior of SFRC, contributing to a better understanding of the problem and the shear resistance mechanisms. In this study, eight reinforced concrete beams, with and without steel fibers, were evaluated using the DIC technique to quantify the resistance mechanisms, with a focus on models that may represent the contribution of the fibers. The results revealed that the predominant mechanisms in shear behavior were aggregate interlock and the steel fibers. This study also represents a step towards a more rational understanding of shear behavior, while identifying gaps that require further investigation, such as the influence of fibers on all resistance mechanisms and the formulation of the contribution of steel fibers. beams SFRC , (SFRC) community However (DIC investigation (SFRC

Resumo O entendimento do comportamento à força cortante de vigas de concreto armado, especialmente as vigas de concreto reforçado com fibras de aço (CRFA), ainda é um desafio para a comunidade científica, devido à complexidade do comportamento dos materiais. No entanto, a evolução da técnica de correlação por imagem digital (CID) permitiu a obtenção de dados experimentais fundamentais para a modelagem do comportamento mecânico do CRFA, contribuindo para um melhor entendimento do problema e dos mecanismos resistentes à força cortante. Neste sentido, o presente estudo avalia oito vigas de concreto armado, com e sem fibras de aço, utilizando a técnica CID para quantificar os mecanismos resistentes, com foco nos modelos que podem representar a contribuição das fibras. Os resultados revelaram que os mecanismos preponderantes no comportamento à força cortante foram o engrenamento dos agregados e as fibras de aço. Este estudo representa um avanço no entendimento mais racional do comportamento à força cortante, assim como identifica lacunas que requerem estudos mais aprofundados, como a influência das fibras em todos os mecanismos resistentes e a formulação da contribuição das fibras de aço. armado CRFA , (CRFA) científica materiais entanto (CID sentido aprofundados (CRFA

Abstract Purpose: To analyze the contribution of the program "Sembrando Vida" in alleviating the poverty of male and female farmers using an Actor-Oriented Approach (AOA), to comprehend the program's impact on poverty reduction in Acayucan, Veracruz, Mexico. This analysis takes into consideration aspects such as employment, food self-sufficiency, the reconstruction of social fabric, forest recovery, the potential of territories, and overall well-being. Methodological design: This is an ethnographic study, using in-depth interviews and participant observation of ten farmers in the program over a period of seven months. The analysis of the information was carried out using NVivo software. Results: The program is partially fulfilling the objective to decrease poverty, because farmers still confront productive limitations, social vulnerability, higher investments, and technical-productive difficulties. Research limitations: The scope of the research only corresponds to the actors who participated in the research; therefore, the results cannot be generalized. Comparisons with more communities and with farmers not participating in the program would give a broader picture. Findings: This study contributes to the understanding of the impact of public interventions on development processes. The findings contribute to improving the implementation of the program and to developing future projects that consolidate the medium and long-term goals of the program.

Resumen Objetivo: analizar la contribución del programa Sembrando Vida en el alivio de la pobreza de campesinas y campesinos desde un Enfoque Orientado al Actor (EOA), para comprender el impacto del programa en la disminución de la pobreza en Acayucan, Veracruz, México; considerando aspectos como: el empleo, la autosuficiencia alimentaria, la reconstrucción del tejido social, la recuperación forestal, el potencial de territorios y el bienestar. Diseño metodológico: esta investigación cualitativa es de carácter etnográfico, realizando entrevistas a profundidad y observación participante a diez agricultores del programa durante un periodo de siete meses. El análisis de la información se realizó a través del software NVivo. Resultados: el programa está cumpliendo parcialmente con su objetivo de combate a la pobreza, puesto que los campesinos aún enfrentan limitaciones productivas, vulnerabilidad social, mayores inversiones y dificultad técnico-productiva. Limitaciones de la investigación: los alcances de la investigación solo corresponden a los actores que participaron en ella, por lo tanto, los resultados no pueden generalizarse. Comparar con más comunidades y con campesinos no participantes del programa daría una visión más amplia. Hallazgos: se aporta una mayor comprensión del impacto de las intervenciones públicas en los procesos de desarrollo. Lo encontrado suma para la mejora del programa en su aplicación y en el desarrollo de futuros proyectos que consoliden las metas a mediano y largo plazo del programa.

RESUMEN El propósito de la investigación es examinar los sistemas de planificación y sus mecanismos regulatorios para entender cómo se organizan y regulan, ya sea parcial o completamente, dependiendo de la organización para lograr la consecución de objetivos. Las aportaciones teóricas de la investigación se centran en la conceptualización de la teoría de sistemas. El aporte metodológico se basa en el desarrollo de un esquema secuencial y lógico con la aplicación de un dendrograma de variables, que permite eliminar superposiciones entre el conjunto de conceptos analizados. Las conclusiones de la investigación permiten comprobar que las organizaciones son entidades dinámicas y cambiantes que se ven inevitablemente impactadas por el entorno en el que operan; además las instituciones funcionan sinérgicamente desde puntos de vista interrelacionados e interdependientes.

ABSTRACT The purpose of the research is to examine planning systems and their regulatory mechanisms to understand how they are organized and regulated, either partially or completely, depending on the organization to achieve the attainment of objectives. The theoretical contributions of the research are centered on the conceptualization of systems theory. The methodological contribution is based on the development of a sequential and logical scheme with the application of a dendrogram of variables, which allows eliminating overlaps between the set of concepts analyzed. The conclusions of the research show that organizations are dynamic and changing entities that are inevitably impacted by the environment in which they operate; in addition, institutions function synergistically from interrelated and interdependent points of view.

RESUMEN En la presente investigación se realiza una contribución metodológica para la gestión integral de los residuos de construcción y demolición en Cuba. Se valora la literatura especializada sobre los diversos modelos de gestión, para conocer sus regularidades. La mayoría carecen de estudios de la demanda y no realizan el control de la gestión mediante la evaluación de impactos. Se elabora un modelo para la gestión, que concibe mediante un esquema gráfico y conceptual, la forma de organizar su ciclo de aprovechamiento. Se estructura en tres niveles: generación, valorización y evaluación; y se establecen las relaciones internas y externas de los actores económicos que intervienen. El modelo se valida por el método de expertos. Estos coinciden en que las cualidades valoradas son adecuadas, ya que los valores de My oscilan entre 4,35 y 4,86, por lo que se evalúan de muy alto en una escala de 1 a 5.

ABSTRACT In this research, a methodological contribution is made for the management of construction and demolition waste in Cuba. Specialized literature on the various management models is valued to know their regularities. The majority lack demand studies and do not carry out management control through impact evaluation. A management model is developed, which conceives, through a graphic and conceptual scheme, the way to organize its use cycle. It is structured in three levels: generation, valuation and evaluation; and the internal and external relationships of the economic actors involved are established. The model is validated by the expert method. They agree that the qualities evaluated are adequate, because the values range are between 4.35 and 4.86, which is why they are evaluated as very high on a scale of 1 to 5.

Abstract Introduction. Chickpea has been considered a restricted host species for nodulation, although recent studies describe a greater bacterial diversity associated with the crop to increase the knowledge about this symbiosis in orden to obtain efficient isolates in its contribution. Objective. To characterize and identify an isolate obtained from chickpea plant nodules and evaluate its effectiveness under field conditions. Materials and methods. The research was conducted in the laboratories of two centers: the Institute of Fundamental Research in Tropical Agriculture “Alejandro de Humboldt,” Cuba, and the National Center for Genetic Resources, Mexico, as well as under field conditions in two campaigns during the years 2018 and 2020 to demonstrate its effectiveness in crop interaction in the first center. The isolate R3 was taxonomically identified through the sequencing of four genes. For laboratory experiments, a completely randomized design was used, while plant trials were conducted under a randomized block design. The results were subjected to analysis of variance, and means were compared using the Tukey test (p<0.05). Results. The isolate R3 showed variability in terms of its morpho-physiological and biochemical characteristics. Furthermore, it exhibited significant differences compared to the other treatments in the growth and yield indicators evaluated in chickpea. Conclusions. Rhizobium pusense associated with chickpea nodules was identified for the first time in Cuba. The strain demonstrates growth at pH levels between 5.5 and 9.0 and temperature ranges from 29 °C to 38 °C, indicating its tolerance to these factors. Its inoculation in chickpea stimulates nodule formation and increased yield-related variables.

Resumen Introducción. El garbanzo se consideró durante muchos años una especie de hospedero restringido para la nodulación, aunque estudios recientes describen una mayor diversidad bacteriana asociada al cultivo que permita incrementar los conocimientos acerca de esta simbiosis para obtener aislados eficientes en su contribución. Objetivo. Caracterizar e identificar un aislado obtenido a partir de nódulos de plantas de garbanzo y evaluar su efectividad en condiciones de campo. Materiales y métodos. La investigación se desarrolló en los laboratorios de dos centros: Instituto de Investigaciones Fundamentales en Agricultura Tropical “Alejandro de Humboldt”, Cuba y en el Centro Nacional de Recursos Genéticos, México, así como en condiciones campo en dos campañas durante los años 2018 y 2020, para demostrar su efectividad en la interacción del cultivo en el primer centro. El aislado R3 se identificó a nivel taxonómico mediante la secuenciación de cuatro genes. Para los experimentos en condiciones de laboratorio se utilizó un diseño completamente aleatorizado, mientras que los ensayos con plantas se realizaron bajo un diseño de bloques al azar. Los resultados fueron sometidos a un análisis de varianza y las medias se compararon según el test de Tukey (p < 0,05). Resultados. El aislado R3 mostró variabilidad en cuanto a sus características morfo-fisiológico y bioquímicas. Además, tuvo respuesta con diferencias significativas con respecto al resto de los tratamientos en los indicadores de crecimiento y rendimiento evaluados en el garbanzo. Conclusión. Se identificó por primera vez en Cuba Rhizobium pusense asociado a nódulos de garbanzo. La cepa mostró un crecimiento positivo a pH entre 5,5 y 9,0 y rangos de temperatura desde 29 ºC hasta 38 ºC, lo que evidencia su tolerancia a estos factores. Su inoculación en garbanzo estimuló la formación de nódulos e incrementó variables del rendimiento.

Abstract Introduction. The coffee agroecosystems holds significant environmental, social, and economic importance in the subtropical regions of Mexico, but it is vulnerable to unexpected events such as climate change. In recent history, it has been documented that the coffee agroecosystem undergoes a constant process of self-organization based on adaptation and learning in the face of various adverse scenarios. Objective. To determine the resilience capacity of the coffee agroecosystem in the central region of the Veracruz state. Materials and methods. The research was conducted from December 2017 to November 2018 in Tezonapa, Veracruz, Mexico. Fifty-two interviews were conducted with coffee growers to measure the resilience index, which is composed of thirty variables corresponding to seven factors (social, economic, technological, infrastructure, communications, institutional, and environmental). These factors were normalized using the mim-max scaling method. Resilience was estimated on a scale of 0-1, where values close to zero represent low resilience capacity and values close to one, represent high resilience. The data were analyzed using descriptive statistics, Kruskal-Wallis tests, and Chi-squared tests. Results. Statistically significant differences (p<0,05) were found for the economic (0,06) and technological (0,22) dimensions indicators, which had the lowest contribution to resilience. Conversely, the social (0,78) and environmental (0,74) dimensions had a the highest contribution to resilience capacity, determined by the altitudinal gradient. Conclusion. The indicators that contributed the most to the resilience capacity of the coffee agroecosystem were those in the social and environmental dimensions, while the economic and technological dimensions contributed the least.

Resumen Introducción. El agroecosistema de café presenta gran importancia ambiental, social y económica en regiones subtropicales de México, pero también es vulnerable a eventos inesperados como el cambio climático. En la historia reciente, se ha documentado que el agroecosistema de café presenta un proceso constante de autoorganización basada en la adaptación y el aprendizaje ante los diversos escenarios adversos. Objetivo. Determinar la capacidad de resiliencia del agroecosistema cafetalero en la región centro del estado de Veracruz. Materiales y métodos. La investigación se realizó de diciembre de 2017 a noviembre de 2018 en Tezonapa, Veracruz, México. Se realizaron 52 entrevistas a caficultores para medir el índice de resiliencia, integrado por treinta variables, correspondientes a siete factores (social, económico, tecnológico, infraestructura, comunicaciones, institucional y ambiental). Estos factores fueron normalizados por el método de escalamiento mínimo-máximo. La resiliencia se estimó en una escala de 0-1, donde valores cercanos a cero representan baja capacidad de resiliencia y cercanos a uno, alta resiliencia. Los datos fueron analizados mediante estadística descriptiva y pruebas de Kruskal-Wallis y chi-cuadrado. Resultados. Se encontraron diferencias estadísticamente significativas (p<0,5) para los indicadores de las dimensiones económica (0,06) y tecnológica (0,22), con la menor contribución a la resiliencia. Por el contrario, las dimensiones sociales (0,78) y ambiental (0,74) tuvieron mayor contribución a la capacidad de resiliencia, determinado por el gradiente altitudinal. Conclusiones. Los indicadores con el mayor aporte a la capacidad de resiliencia del agroecosistema de café fueron los de dimensiones social y ambiental, y con bajo aporte las dimensiones económica y tecnológica.