Schiff bases are diverse organic compounds with an azomethine structure (–C=N–), holding potential in both chemistry and biology. They serve as catalysts, stabilizers, and exhibit various biological activities. The molecular structure of Schiff bases influences their biological properties, including antimicrobial effects. Redox-active compounds with more negative potentials tend to be more effective against microbes. In one of our recent studies, we explored the antimicrobial properties of two Schiff bases derivatives, SB-1 ((E)-4-amino-3-((3,5-di-tert-butyl-2-hydroxybenzylidene)amino) and SB-2 ((E)-2-((4-nitrobenzilidene)amino)aniline). SB-1 showed antibacterial activity against certain Gram-positive bacteria, while SB-2 did not. The difference in their cyclic voltametric profiles, especially SB-1’s more negative reduction potential, prompted us to carry out further characterizations, including scan-rate studies, solvent analysis, and computational calculations. We found that SB-1, which presents a stable intramolecular hydrogen bond, undergoes irreversible oxidation, likely at the –NH2 group, and a quasi-reversible reduction via an intramolecular reductive coupling of the (–C=N–) azomethine group, supported by orbital theoretical calculations. This research sheds light on the potential applications of Schiff bases in antimicrobial contexts, guided by their redox properties and structure. –C=N–, CN –C=N– , C N biology catalysts stabilizers activities effects Redoxactive Redox active microbes studies derivatives SB1 SB 1 SB- E4amino33,5ditertbutyl2hydroxybenzylideneamino E4amino335ditertbutyl2hydroxybenzylideneamino Eaminoditertbutylhydroxybenzylideneamino E 4 amino 3 3,5 di tert butyl 2 hydroxybenzylidene 5 ((E)-4-amino-3-((3,5-di-tert-butyl-2-hydroxybenzylidene)amino SB2 E24nitrobenzilideneaminoaniline. E24nitrobenzilideneaminoaniline Enitrobenzilideneaminoaniline nitrobenzilidene aniline . ((E)-2-((4-nitrobenzilidene)amino)aniline) Grampositive Gram positive bacteria not profiles SB1s SBs s characterizations scanrate scan rate analysis calculations SB1, 1, bond oxidation NH2 NH –NH group quasireversible quasi reversible (–C=N– contexts –C=N E4amino33 5ditertbutyl2hydroxybenzylideneamino ditertbutyl hydroxybenzylideneamino 35 3, nitrobenzilideneaminoaniline ((E)-2-((4-nitrobenzilidene)amino)aniline (–C=N Eamino E4amino3 ditertbutylhydroxybenzylideneamino E4amino

In order to extract hesperidin from Citrus aurantium L. through green and efficient ways, a novel method based on deep eutectic solvent (DES) assisted extraction has been developed. Compared to known alkali extraction and acid precipitation or organic solvent (ethanol, methanol) extraction, this new DES system of choline chloride/diethanolamine (DES-14) method exhibited excellent extraction efficiency for hesperidin. Under optimal conditions, the extraction yield of hesperidin reached 6.26 ± 0.05%. Further studies with infrared spectroscopy, 1H nuclear magnetic resonance, and density functional theory showed the DES-14 was formed mainly through the interaction of H-bond and van der Waals forces. In addition, scanning electron microscopy and density functional theory revealed the strong dissolving capacity, and the H-bond formation between DES-14 and hesperidin, as well as van der Waals forces all contributed to efficient extraction of hesperidin. The results provide a new strategy for efficient extraction and utilization of hesperidin in Citrus. L ways (DES developed ethanol, ethanol (ethanol methanol chloridediethanolamine chloride diethanolamine DES14 14 (DES-14 conditions 626 6 26 6.2 005 0 05 0.05% spectroscopy H resonance DES-1 Hbond bond addition capacity DES1 1 (DES-1 62 2 6. 00 0.05 DES- (DES- 0.0 0.

Computational predictive approaches present themselves as an attractive alternative in the search for new compounds that may present toxic or growth regulatory activity in Aedes aegypti. Aspergillus species is a producer of secondary metabolites with diverse biological activities. In this study, it was possible to evaluate the pharmacokinetic and toxicological properties in silico, as well as the prediction of the insecticidal biological activities of the juvenile hormone of natural substances produced by the genus Aspergillus. Initially, 187 molecules were cataloged from various species of Aspergillus spp., and only seven molecules of indole alkaloids were found to exhibit a toxic dose 50% (TD50) after conducting toxicity predictions. The molecular dynamic simulation trajectories were utilized to study parameters such as root mean square deviation, root mean square fluctuation, radius of gyration and intermolecular hydrogen bond to understand the behavior and stability of proposed compounds in the binding pocket of the target protein. The N-β-acetyltryptamine molecule showed a binding affinity value of –8.100 ± 0.200 kcal mol-1, which classifies the compound as a potential insecticidal agent against the Aedes aegypti vector. silico Initially 18 spp spp. 50 TD50 TD (TD50 predictions deviation fluctuation protein Nβacetyltryptamine N β acetyltryptamine 8100 8 100 –8.10 0200 0 200 0.20 mol1, mol1 mol 1, 1 mol-1 vector 5 TD5 (TD5 810 10 –8.1 020 20 0.2 mol- (TD 81 –8. 02 2 0. –8 –

Resumo O concreto têxtil surge como uma alternativa para o reforço de estruturas de concreto armado. Porém, por ser um material relativamente novo, inexiste ainda um órgão ou norma regulamentadora que uniformize os processos de fabricação e de aplicação do material, o que gera diferenças significativas quanto às suas características e propriedades. Sob esta perspectiva, este estudo busca avaliar experimentalmente o desempenho mecânico do concreto têxtil ao ser aplicado como reforço de vigas em concreto armado submetidas ao ensaio de flexão a quatro pontos, utilizando o têxtil de fibra de vidro álcali-resistente de produção brasileira TEXIGLASS AR-360-RA-04. De caráter exploratório, o programa experimental é composto por quatorze vigas reforçadas e uma viga testemunho de seção retangular (120 mm de largura, 200 mm de altura e 1500 mm de comprimento), totalizando quinze vigas. Como variáveis, investigam-se a resistência de ligação na interface têxtil-matriz a partir do (a) tipo de matriz (argamassa polimérica industrializada ou argamassa autoadensável) e do (b) tratamento superficial do têxtil em quatro configurações: têxtil sem revestimento (SR), revestido com epóxi (E), totalmente revestido com epóxi e areia (EA) ou totalmente revestido com epóxi, mas com areia somente nas extremidades (EAP). A partir dos resultados, verificou-se principalmente que: todas as vigas reforçadas apresentaram aumentos da (a) capacidade resistente, (b) ductilidade e (c) tenacidade. Apesar da grande variabilidade de resultados, a técnica de revestimento nos exemplares dos têxteis EAP se mostrou promissora. Porém novo propriedades perspectiva pontos álcaliresistente álcali resistente AR360RA04. AR360RA04 ARRA AR 360 RA 04. 04 AR-360-RA-04 exploratório 120 (12 largura 20 150 comprimento, comprimento , comprimento) variáveis investigamse investigam têxtilmatriz (a autoadensável b (b configurações SR, SR (SR) E, E (E) EA (EA EAP. . (EAP) resultados verificouse verificou c (c tenacidade promissora AR360RA0 36 0 AR-360-RA-0 12 (1 2 15 (SR (E (EAP AR360RA 3 AR-360-RA- 1 ( AR-360-RA

Abstract Textile reinforced concrete emerges as an alternative for the strengthening of reinforced concrete structures. However, as a relatively new material, there is still no regulatory body or standardization that standardizes the manufacturing and application processes of the material, which generates significant differences regarding its characteristics and properties. From this perspective, this study seeks to experimentally evaluate the mechanical performance of textile reinforced concrete when applied as reinforcement of reinforced concrete beams subjected to four-point bending tests, using the alkali-resistant fiberglass textile produced in Brazil, TEXIGLASS AR-360-RA-04. As an exploratory study, the experimental program consists of fourteen reinforced beams and one rectangular cross-section reference beam (120 mm wide, 200 mm high, and 1500 mm long), totaling fifteen beams. As variables, the bond strength at the textile-matrix interface is investigated based on (a) the type of matrix (industrialized polymer mortar or self-compacting mortar) and (b) the surface treatment of the textile in four configurations: uncoated textile (UT), coated with epoxy (E), fully coated with epoxy and sand (ES) or fully coated with epoxy and partial sand (EPS). From the results, it was mainly found that: all reinforced beams showed increases in (a) load-carrying capacity, (b) ductility and (c) toughness. Despite the great variability of results, the coating technique in the EPS textile specimens proved promising. structures However material properties perspective fourpoint point tests alkaliresistant alkali resistant Brazil AR360RA04. AR360RA04 ARRA AR 360 RA 04. 04 AR-360-RA-04 crosssection cross section 120 (12 wide 20 high 150 long, long , long) variables textilematrix (a industrialized selfcompacting self compacting b (b configurations UT, UT (UT) E, E (E) ES (ES EPS. . (EPS) results loadcarrying load carrying capacity c (c toughness promising AR360RA0 36 0 AR-360-RA-0 12 (1 2 15 (UT (E (EPS AR360RA 3 AR-360-RA- 1 ( AR-360-RA

Abstract Sisal (Agave sisalana) is a plant exploited in semi-arid regions of Brazil for fiber production, but the floral scape of sisal (peduncle) is collected and often burned, causing environmental problems, even through irregular disposal. To circumvent this scenario, the objective of this work was to produce reconstituted panels using the sisal arrow and castor-based polyurethane resin. The panels were obtained using 175 g of crushed sisal arrow core with dimensions smaller than 2 mm and adopting 10% castor-based polyurethane resin and The samples were pressed under tension of 2 MPa. The properties of reconstituted panel were evaluated through NBR 14810-1 (ABNT, 2013) and NBR 14810-2 (ABNT, 2018), the physical properties were investigated: moisture, density, thickness swelling and absorption; as well as mechanical properties: MOR, MOE, internal bond and parallel compression. The found results show that the panel is classified as low density (419.8 kg/m³), and with physical and mechanical properties similars to other panels of the same classification in the literature. For average values of MOR and MOE it was found 5.24 MPa and 147.49 MPa, respectively. For internal bonding it was found 0.14 MPa and for parallel compression properties it was found 1.14 MPa. Agave sisalana semiarid semi arid production peduncle (peduncle burned problems disposal scenario castorbased castor based 17 10 148101 14810 1 14810- ABNT, ABNT (ABNT 2013 148102 2018, 2018 , 2018) investigated moisture absorption 419.8 4198 419 8 (419. kg/m³, kgm³ kgm kg/m³ kg m³ m kg/m³) literature 524 5 24 5.2 14749 147 49 147.4 respectively 014 0 14 0.1 114 1.1 1481 201 419. 41 (419 kg/m 52 5. 1474 4 147. 01 0. 11 1. 148 20 (41 (4 (

Resumo O sisal (Agave sisalana) é uma planta explorada nas regiões semiáridas do Brasil para produção de fibras, mas o escapo floral do sisal (flecha) é coletado e frequentemente queimado causando problemas ambientais, até mesmo pelo descarte irregular. Para contornar este cenário, o objetivo deste trabalho foi produzir painéis reconstituídos usando a flecha do sisal e resina poliuretana à base de mamona. Os painéis foram obtidos empregando 175 g do miolo da flecha de sisal triturada com dimensões inferiores a 2 mm e adotando 10% de resina poliuretana à base de mamona e as amostras foram prensadas com tensão de 2 MPa. Avaliou-se no painel reconstituído, através da NBR 14810-1 (ABNT, 2013) e NBR 14810-2 (ABNT, 2018) as propriedades físicas: umidade, densidade, inchamento e absorção; bem como as propriedades mecânicas: MOR, MOE, força de ligação e compressão paralela. Os resultados encontrados mostram que o painel é classificado como de baixa densidade (419,8 kg/m³), e de propriedades físicas e mecânicas semelhantes a outros painéis de mesma classificação da literatura. Para MOR e MOE foram encontrados 5,24 MPa e 147,49 MPa de média, respectivamente. Já os ensaios de tração perpendicular e compressão paralela obtiveram resultados de 0,14 MPa e 1,14 MPa, respectivamente. Agave sisalana fibras (flecha ambientais irregular cenário 17 10 Avaliouse Avaliou se reconstituído 148101 14810 1 14810- ABNT, ABNT (ABNT 2013 148102 2018 umidade absorção 419,8 4198 419 8 (419, kg/m³, kgm³ kgm kg/m³ , kg m³ m kg/m³) literatura 524 5 24 5,2 14749 147 49 147,4 média respectivamente 014 0 14 0,1 114 1,1 1481 201 419, 41 (419 kg/m 52 5, 1474 4 147, 01 0, 11 1, 148 20 (41 (4 (

Resumen El duelo por finalización de una relación de pareja puede ser una experiencia que genera diferentes afectaciones, y para lidiar con ello, las personas utilizan diversos recursos de afrontamiento. El presente estudió buscó identificar las diferentes estrategias de afrontamiento que utilizan las personas en duelo de pareja en general y según el tiempo de finalización del vínculo. Esta investigación, de enfoque cuantitativo, alcance descriptivo no experimental y de corte transversal, fue realizada con 172 participantes, elegidos en un muestro a conveniencia. Se evidenció en los resultados que las estrategias que presentaron menor uso fueron la búsqueda de solución de problemas y la reevaluación positiva, y las más utilizadas fueron la búsqueda de apoyo social, la espera, religión, evitación emocional, el apoyo profesional, la reacción agresiva, la evitación cognitiva y la expresión de dificultad de afrontamiento. A nivel del tiempo de la finalización de la relación, se encontró mayor uso de la evitación emocional, reacción agresiva, evitación cognitiva y el apoyo profesional en aquellos con 6 meses de duelo, y menor uso de la reevaluación positiva, búsqueda de apoyo social, solución de problemas, negación, expresión de la dificultad de afrontamiento y autonomía en este periodo de tiempo. En conclusión, se identificó que las estrategias para afrontar el duelo en pareja varían conforme avanza el tiempo de la finalización del vínculo.

Abstract Grieving duel to the end of a relationship can be an experience that generates different effects and, to deal with it, people use various coping resources. The present study sought to identify the different coping strategies used by bereaved couples in general and according to the time the relationship ended. This research with a quantitative approach, non-experimental and cross-sectional descriptive scope, was carried out with 172 subjects chosen in a convenience sample. The results showed that the strategies that were least used were the search for problem solutions and positive reappraisal and the most used were the search for social support, waiting, religion, emotional avoidance, professional support, aggressive reaction, cognitive avoidance and the expression of coping difficulty. At the time of the end of the relationship, greater use of emotional avoidance, aggressive reaction, cognitive avoidance and professional support was found in those with 6 months of grief and less use of positive reappraisal, search for social support, solution of problems, denial, expression of coping difficulty and autonomy in this period of time. In conclusion, it was identified that the strategies for coping with grief as a couple vary as the time of the end of the relationship progresses.

Resumen El desarrollo de proyectos mineros en etapas de exploración y prefactibilidad conlleva desafíos relacionados a la heterogeneidad e incertidumbre geológica y de procesamiento debido a la variabilidad en sus atributos primarios y de respuesta. Por lo tanto, el objetivo de esta investigación radica en elaborar el modelo geometalúrgico del índice de trabajo de Bond. Para esto se desarrollaron modelos de regresión lineal en Jupyter Notebook considerando 790 muestras de resistencia a la compresión uniaxial de la roca (UCS), litologías, zonas minerales e índice de trabajo de Bond (BWi) en un depósito pórfido cuprífero. Los resultados indican relación directamente proporcional de tipo lineal entre el BWi y UCS, generando modelamientos con desempeños aceptables de R2 entre 0,76 a 0,90. Además, las litologías y zonas mineralizadas en el depósito estudiado son características relevantes relacionadas a la conminución. Finalmente, de acuerdo a la competencia de la roca, esta se clasifica como tipo media a dura, dura y muy dura en las zonas de óxidos, mixtos y sulfuros primarios respectivamente.

Abstract The development of mining projects in the exploration and pre-feasibility stages involves challenges related to geological and processing heterogeneity and uncertainty due to variability in their primary and response attributes. Therefore, the objective of this research is to develop the geometallurgical model of the Bond work index. For this purpose, linear regression models were developed in Jupyter Notebook considering 790 samples of uniaxial compressive strength of rock (UCS), lithologies, mineral zones and Bond work index (BWi) in a porphyry copper deposit. The results indicate a directly proportional linear relationship between BWi and UCS, generating modeling with acceptable R2 performances between 0,76 and 0,90. In addition, the lithologies and ore zones in the deposit studied are relevant characteristics related to comminution. Finally, according to rock competence, the rock is classified as medium to hard, hard and very hard in the oxide, mixed and primary sulfide zones, respectively.

Abstract The purpose of this research is to analyze the classification of female university students based on their unfaithful behavior, describing each category by their communication styles as a couple and sexual behavior. 454 university women aged 18 to 28 years participated (x̄ = 20.28; σ = 1.785). Each variable was measured with valid and reliable instruments. A multivariate analysis was carried out with the infidelity variable, identifying three groups: “Desire for a romantic bond”, “fidelity” and “non-fidelity”. An ANOVA was used to contrast the three groups, finding differences according to the variables couple communication and sexual behavior. It is concluded that the “not-fidelity” group is more socially receptive and communicates positively and kindly with their partners, demonstrating fewer seductive behaviors; the “Desire for a romantic bond” group shows a negative communication style with their partners, and greater sexual behavior; and the “fidelity” group shows more seduction behaviors than the other two groups.

Resumen El objetivo del estudio fue analizar la clasificación de estudiantes universitarias en función de su comportamiento infiel utilizando las categorías: estilos de comunicación en pareja y conducta sexual. Participaron 454 mujeres universitarias de 18 a 28 años (x̄ = 20.28; σ = 1.785). Se utilizaron instrumentos válidos y confiables. Se realizó un análisis multivariado con la variable infidelidad, identificándose tres grupos: “Deseo de vínculo romántico”, “Infieles” y “No infieles”. Se empleó un ANOVA para contrastar a los tres grupos, encontrándose diferencias de acuerdo con las variables comunicación de pareja y conducta sexual. Se concluye que el grupo “No infieles” es más receptivo socialmente y se comunica positiva y amablemente con sus parejas, demostrando menos conductas seductoras; el grupo “Deseo de vínculo romántico” muestra un estilo de comunicación negativo con sus parejas, y mayor conducta sexual; y el grupo “Infieles” manifiesta más conductas de seducción que los otros dos grupos.

Abstract Introduction: Friendship positively influences human development. However, people with disabilities face difficulties in building and maintaining this bond. This study aims to explore and analyze the knowledge networks in the literature on friendship and disabilities from 2017 to 2022. Method: Using PRISMA criteria, the search was conducted in the Scopus and Web of Science databases. VOSviewer and Pajek software were used to construct and analyze the networks. Results: Sixty-eight articles were analyzed. The United States leads in publications, but the United Kingdom is more influential in the network. The main research areas are autism spectrum disorder, intellectual disability, social inclusion, social skills, and violence against people with disabilities. Influential documents address thematic analysis in psychology, and friendship among individuals with autism spectrum disorder and intellectual disability. Conclusions: Knowledge maps and network analysis help explore the literature, allowing an understanding of trends, the foundational intellectual structure, and scientific correlations.

Resumo Introdução: A amizade influencia positivamente o desenvolvimento humano. Todavia, pessoas com deficiencia enfrentam dificuldades para construir e manter esse vínculo. Este estudo objetiva explorar e analisar as redes de conhecimento da literatura sobre amizade e deficiencia de 2017 a 2022. Método: Utilizando critérios Prisma, a busca foi realizada nas bases de dados Scopus e Web of Science. Os softwares VOSviewer e Pajek foram usados para construir e analisar as redes. Resultados: Foram analisados 68 artigos. Os Estados Unidos lideram em publicaçoes, entretanto o Reino Unido é mais influente na rede. As principais investigaçoes na área sao: transtorno do espectro autista, deficiencia intelectual, inclusao social, habilidades sociais e violencia contra a pessoa com deficiencia. Documentos influentes abordam análise temática em psicologia, amizade de pessoas com transtorno do espectro autista e deficiencia intelectual. Conclusões: Os mapas de conhecimento e análise de redes ajudam a explorar a literatura, o que permite compreender tendencias, estrutura intelectual base e correlações científicas.

Abstract Objective: Expose the complexity of looking after patients with Alzheimer’s disease (AD), as well as the relevance of opening a space in academic research so that the voice of female caregivers resonates, through methodologies to encourage epistemic justice. Methodology: It is an autoethnography based on the narrative of one author going through the experience of looking after her father, who suffered AD. Additionally, it was necessary to carry out a systematic literature review regarding the narratives of caregivers of AD patients. Argument: AD implies focusing on caregivers, who assume the responsibility of making decisions and taking actions to safeguard the integrity and dignity of their patients. AD care process requires full time and attention to basic needs. Caregivers compromise physical, emotional, and economic health, as well as their creativity and experience. However, caregiver’s voice is in isolation, they are rarely heard in research, in addition, they have little access to the information generated in research institutions, which produces diverse epistemic injustices. Findings: Caregivers of AD patients in Mexico are -essentially- women and, in the different stages of the pathological process, they generate relevant knowledge about the bond and care. However, in published academic research, the voice of caregivers is not clear; on the contrary, the voice of women as the protagonists of caregiving is usually diluted. Furthermore, the concept of “caregiver”, in Spanish, is referred predominantly to males, even though statistics indicate that, most of the times, women perform this unpaid work. This irreplaceable work, as a health issue, should be responsibility of the government, through public institutions.

Resumen Objetivo: Mostrar la complejidad del cuidado de pacientes con la enfermedad de Alzheimer (EA), así como la relevancia de abrir espacio en las investigaciones académicas para que resuene la voz de las mujeres cuidadoras, mediante metodologías que favorezcan a la justicia epistémica. Metodología: Es una autoetnografía a partir de la narrativa de la experiencia de una de las autoras, tras atravesar por el cuidado y atención de su padre quien padeció la EA. Para ello, fue necesario realizar una revisión de literatura sistemática con respecto de las narrativas de personas cuidadoras de pacientes de la EA. Argumento: La EA convoca a focalizar la atención en las personas cuidadoras, quienes asumen la responsabilidad de tomar decisiones y actuar para salvaguardar la integridad de sus pacientes, cuyo proceso de cuidado precisa tiempo completo y atención de las necesidades básicas. Con ello, generan condiciones de dignidad de quienes padecen la EA. Las personas cuidadoras comprometen salud física, emocional y económica, además de su creatividad y experiencia. No obstante, existe aislamiento de la voz de las personas cuidadoras, que rara vez se escucha en las investigaciones y, además, tienen poco acceso a la información que se genera en las instituciones de investigación, esto produce diferentes injusticias epistémicas. Hallazgos: Las personas cuidadoras de pacientes de la EA en México son -esencialmente- mujeres y en las diferentes etapas del proceso patológico generan saberes relevantes en torno al vínculo y atención. Empero, en las investigaciones académicas publicadas, la voz de las personas cuidadoras no es manifiesta, por el contrario, se suele diluir la voz de las mujeres como las protagonistas del cuidado. Además, predomina el concepto de “cuidador”, en masculino, pese a que las estadísticas refieren que son las mujeres quienes se hacen cargo de este trabajo no remunerado, en la mayoría de las circunstancias. Esa irremplazable labor correspondería principalmente al Estado por ser un asunto de salud.

Abstract One of the key elements of feminist theory and practice is the questioning of the preestablished structures for relating that dictate who we should get close to and when, and the insistence on creating affective bonds that go beyond those allowed by the mandates. Coming from the field of children’s studies we invoke those elements as we intend to study the ways in which teenage girls and adult women -members of a social organization called AulaVereda- bonded with each other while participating in the feminist movement, in the city of Buenos Aires, Argentina, during the years of 2018/ 2021. Using an ethnographic approach, we identified two different ways of bonding between the age groups emerging in the daily life of the organization. A pedagogical bond, on the one hand, and what we are calling a compañeras bond, on the other. We analyze these two styles using the metaphors of occupying knowledge and occupying the street, respectively. The results of the investigation allow us to argue that the democratization of political participation comes hand in hand with an intergenerational feminism.

Resumen Uno de los ejes centrales de la teoría y práctica feminista ha sido el cuestionamiento a las normas vinculares preestablecidas y la apuesta por crear lazos afectivos más allá de los mandatos que establecen a quiénes nos debemos aproximar y cómo. Invocando estas operatorias desde el campo de la antropología de la infancia y las edades, en este trabajo nos proponemos estudiar las formas vinculares que se desplegaron entre las adultas y las niñas de la organización social AulaVereda en el marco de su participación en el movimiento feminista, en la Ciudad de Buenos Aires (Argentina) durante los años 2018-2021. Desde un abordaje etnográfico y del análisis denso de registros de campo, identificamos dos modos de relación entre grupos de edades que se yuxtaponen y conviven en la cotidianeidad de la organización: un vínculo pedagógico y un vínculo de compañeras, que analizamos a partir de la figura de ocupación del conocimiento y ocupación de la calle respectivamente. Los datos arrojados por la investigación nos permiten argumentar por la democratización etaria de la política de la mano de un feminismo intergeneracional.

Abstract Introduction. Rapunzel syndrome is an uncommon condition that manifests as trichobezoars, which are hair bundles in the stomach or small intestine that can mimics other surgical illnesses. Multiple complications can arise from delayed diagnosis and treatment. Clinical case. A 10-year-old female patient with trichotillomania and trichophagia, with abdominal pain and nonspecific symptoms of intestinal obstruction of eight months of evolution. Physical examination revealed epigastric tenderness and a solid mass was palpable in the mesogastric and epigastric region. An abdominal ultrasound showed gastric trichobezoar that extended into the small intestine. A gastrotomy was performed and the trichobezoar was extracted with satisfactory evolution of the patient. The comprehensive approach allowed knowing the psychological bond due to possible child abuse. Results. The patient had a satisfactory evolution and was discharged on the fifth day of hospitalization. He is currently being monitored by psychology, child psychiatry and pediatrics. Discussion. This clinical case highlights the importance of recognizing situations that seldom present in pediatrics, which may have a psychological aspect due to the presumption of child abuse, and which present as a recurrent organic condition simulating other frequent abdominal pathologies in childhood; all of which may lead to an unwanted outcome due to diagnostic delay. Conclusion. The comprehensive management of the pediatric patient is mandatory to recognize situations of presumed child abuse, in the face of a recurrent surgical conditions.

Resumen Introducción. El síndrome de Rapunzel es una entidad infrecuente, que se presenta como un tricobezoar a causa de una aglomeración de cabello acumulado dentro del tracto gastrointestinal, por lo que simula otras patologías quirúrgicas. Caso clínico. Paciente femenina de 10 años de edad, con tricotilomanía y tricofagia, dolor abdominal y síntomas inespecíficos de obstrucción intestinal de ocho meses de evolución. Al examen físico se encontró abdomen con distensión y masa palpable en epigastrio y mesogastrio. La ecografía permitió hacer el diagnóstico de tricobezoar gástrico extendido hasta el intestino delgado, por lo que se llevó a cirugía para gastrotomía y se extrajo el tricobezoar, con evolución satisfactoria de la paciente. El abordaje integral permitió conocer la atadura sicológica por posible maltrato infantil. Resultado. La paciente tuvo una evolución satisfactoria y se dio egreso al quinto día de hospitalización. Actualmente se encuentra en seguimiento por sicología, siquiatría infantil y pediatría. Discusión. El caso clínico denota la importancia en reconocer situaciones de presentación infrecuente en pediatría, que puedan estar asociadas a alteraciones sicológicas o presunción de maltrato infantil y que se presenten como una condición orgánica recurrente que simule otras patologías abdominales frecuentes en la infancia. El retraso diagnóstico puede conducir a un desenlace no deseado con complicaciones. Conclusión. Se hace mandatorio el manejo integral del paciente pediátrico y aumentar la sensibilidad para reconocer situaciones de presunción de maltrato infantil, sobre todo en pacientes con una condición orgánica quirúrgica recurrente.

Resumen Este dossier ofrece un panorama de algunas indagaciones actuales que se están llevando adelante en torno a los cruces entre el arte, en sus múltiples expresiones, y la política, que se suscitaron en la cultura de izquierdas en Argentina, entre 1920 y 1970. El objetivo central radica en relevar y discutir nuevas miradas y perspectivas críticas en torno a problemas, objetos, prácticas estéticas, debates y espacios de sociabilidad relacionados con la compleja vinculación entre arte y política en el país a lo largo del período recortado. Por medio de un eje compartido que recupera el transitado tópico acerca del compromiso de los/las intelectuales —y su contraparte, el de la autonomía de las prácticas artísticas—, que adquirió importantes resonancias en ciertas coyunturas de radicalización política a nivel internacional, los artículos indagan diferentes posicionamientos, actos creativos y modos de intervención a los que apelaron escritores/as, periodistas, músicos/as y artistas visuales ante dichas coyunturas, que eluden cualquier definición rígida o dogmática acerca de lo que debería establecer tal compromiso. En todos los casos, se trata de debates y prácticas en las que está en juego una valoración del arte concebido como instrumento capaz de aportar a una lucha política figurada en términos de una transformación que incluía una batalla cultural.

Abstract This dossier offers an outlook of the latest investigation about the bond between art, in its´ multiple forms, and politics, in the left culture of Argentina in the period 1920‒1970. The main objective is to reveal and discuss new critical perspectives about problems, objects, esthetics practices, debates and sociability places connected with the complex bond between art and politics, in the country during the mentioned period. Through a shared axis that recovers the well known topic of the intelectual commitment and —it´s other side, the autonomy of artistic practices—, that generated important repercussions in some radical political moments at international scale. The articles inquire into different possitions, creative acts and intervention modes in wich writers, journalists, musicians and visual artists stand in those occasion, avoiding any rigid or dogmatic answer to what commitment should be. In all the studies that compose the dossier appers debate and practices that values art, as an instrument capable of contribute to the political fight, figured in terms of a transformation that contained a cultural battle.

ABSTRACT Afro-Ecuadorian dance is a bond of connection with ancestors and identity, and provides an education in movement that facilitates, in turn, the development of educational values around the treatment of the body; this favors motivation towards the practice of continued physical activity. The objective of the research lies in proposing Afro-Ecuadorian dance as a methodological alternative for the inclusion of students with hyperactivity and is contextualized in the tenth grade, with a total of 35 students, and a sample of a student with attention deficit hyperactivity disorder, from the Higher Basic School “José Otilio Ramírez Reina” Educational Unit, province of Esmeraldas in Ecuador. The study was based on a quantitative-qualitative approach and the dialectical-materialist method; methods from the theoretical level such as historical-logical and analysis-synthesis and from the empirical level, documentary analysis, observation and survey, were used to interpret the derivations obtained in each stage that went from the exploratory, descriptive level, until reaching an explanation of the phenomenon investigated. The results reveal the insufficient recognition of Afro-Ecuadorian dance for the inclusion of students with this disorder, as well as the limited scientific production related to the topic. From the study carried out, it was concluded that Afro-Ecuadorian dance constitutes an expeditious route for better knowledge, enjoyment and preservation of identity in these students.

RESUMO Reconhece-se que a dança afro-equatoriana é um vínculo de ligação com os ancestrais e a identidade, e proporciona uma educação em movimento que facilita, por sua vez, o desenvolvimento de valores educativos em torno do tratamento do corpo; Isso favorece a motivação para a prática de atividade física continuada. O objetivo da pesquisa consiste em propor a dança afro-equatoriana como alternativa metodológica para a inclusão de alunos com hiperatividade e está contextualizada no décimo ano, com um total de 35 alunos, e uma amostra de um aluno com transtorno de déficit de atenção e hiperatividade, da Escola Básica Superior da Unidade Educacional “José Otilio Ramírez Reina”, província de Esmeraldas no Equador. O estudo baseou-se na abordagem quanti-qualitativa e no método dialético-materialista; Métodos do nível teórico como histórico-lógico e análise-síntese e do nível empírico, análise documental, observação e levantamento, foram utilizados para interpretar as derivações obtidas em cada etapa que passou do nível exploratório, descritivo, até chegar a uma explicação do fenômeno investigado. Os resultados revelam o insuficiente reconhecimento da dança afro-equatoriana para a inclusão de alunos com esse transtorno, bem como a limitada produção científica relacionada ao tema. Do estudo realizado concluiu-se que a dança afro-equatoriana constitui um caminho expedito para um melhor conhecimento, diversão e preservação da identidade destes alunos.

RESUMEN Se reconoce que la danza afroecuatoriana es un lazo de conexión con los ancestros y la identidad, y aporta una educación del movimiento que facilita, a su vez, el desarrollo de valores educativos en torno al tratamiento del cuerpo; ello favorece la motivación hacia la práctica de la actividad física continuada. El objetivo de la investigación radica en proponer la danza afroecuatoriana como una alternativa metodológica para la inclusión de estudiantes con hiperactividad y se contextualiza en décimo año, con un total de 35 estudiantes, y una muestra de un estudiante con trastorno por déficit de atención e hiperactividad, de la Básica Superior de la Unidad Educativa “José Otilio Ramírez Reina”, provincia de Esmeraldas en Ecuador. El estudio, se sustentó en un enfoque cuantitativo-cualitativo y el método dialectico-materialista; se emplearon métodos del nivel teórico como el histórico-lógico y el análisis-síntesis y del nivel empírico el análisis documental, la observación y la encuesta, para interpretar las derivaciones obtenidas en cada etapa que transitó desde el nivel exploratorio, descriptivo, hasta llegar a una explicación del fenómeno investigado. Los resultados revelan el insuficiente reconocimiento de la danza afroecuatoriana para la inclusión de estudiantes con este trastorno, así como la escasa producción científica relacionada con la temática. Del estudio realizado se concluyó que la danza afroecuatoriana constituye una vía expedita para un mejor conocimiento, disfrute y preservación de la identidad, en estos estudiantes.

RÉSUMÉ Cet article fournit une analyse complète du personnage de Vesper Lynd dans Casino Royale de Ian Fleming, en comparant son portrait à la fois dans le roman original et dans son adaptation cinématographique. À travers une exploration des représentations de genre, de l'héroïsme, de la moralité et des dynamiques interpersonnelles, la discussion plonge dans les complexités du personnage de Vesper Lynd en tant que miroir de James Bond. Le texte examine comment son personnage remet en question les normes de genre traditionnelles et les notions d'héroïsme, tout en suscitant des dilemmes moraux pour Bond. En analysant les différences entre le livre et le film, il révèle les nuances de sa caractérisation comme un personnage aux multiples facettes qui transcende l'archétype de la Bond girl, offrant une réflexion profonde sur la nature humaine.

RESUMEN Este artículo proporciona un análisis exhaustivo del personaje Vesper Lynd en Casino Royale de Ian Fleming, comparando su interpretación tanto en la novela original como en su adaptación cinematográfica. A través de una exploración de las representaciones de género, el heroísmo, la moralidad y las dinámicas interpersonales, la discusión profundiza en las complejidades del personaje de Vesper Lynd como espejo de James Bond. El texto examina cómo su personaje desafía las normas tradicionales de género y las nociones de heroísmo, al tiempo que genera dilemas morales para Bond. Al analizar las diferencias entre el libro y la película, se revelan los matices de su caracterización como un personaje multifacético que trasciende el arquetipo de la chica Bond, ofreciendo una profunda reflexión sobre la naturaleza humana.

RESUMO Este artigo fornece uma análise abrangente da personagem Vesper Lynd em Casino Royale, de Ian Fleming, comparando sua representação tanto no romance original quanto em sua adaptação cinematográfica. Através da exploração das representações de género, do heroísmo, da moralidade e da dinâmica interpessoal, a discussão investiga as complexidades da personagem de Vesper Lynd como um espelho de James Bond. O texto examina como sua personagem desafia as normas tradicionais de gênero e as noções de heroísmo, ao mesmo tempo que suscita dilemas morais para Bond. Ao analisar as diferenças entre o livro e o filme, revela as nuances de sua caracterização como uma personagem multifacetada que transcende o arquétipo da Bond girl, oferecendo uma reflexão profunda sobre a natureza humana.

ABSTRACT This paper provides a comprehensive analysis of Vesper Lynd in Fleming's Casino Royale, comparing her portrayal in both the novel and its film adaptation. Through an exploration of gender representations, heroism, morality, and interpersonal dynamics, the discussion delves into the complexities of Lynd as a mirror to James Bond. It examines how she challenges traditional gender norms and notions of heroism, while also prompting moral dilemmas for Bond. By analysing the differences between the media, it reveals the nuances of her characterization as a multifaceted character who transcends the archetype of the Bond girl, offering a profound reflection on human nature.