Abstract Objective: To establish the psychometric properties of the aggression questionnaire (AQ) in a sample of Colombian children and adolescents. Method: The AQ was submitted to the judgment of seven experts in order to verify and adjust the clarity of the items taking into account the characteristics of the Colombian population. Following this analysis and adjustment of items, the instrument was applied to a sample of 892 participants between 10 and 23 years of age. For validity, evidence of internal structure was taken into account through confirmatory factor analysis and evidence based on the relationship with other variables. Results: Confirmatory factor analysis showed two models, one of factorial correlation and the other of second order indicating a model fit. Likewise, internal consistency was calculated by means of the Omega index, which showed precision in the measures for each factor in each of the models. The analysis suggested the elimination of four items. Conclusions: The first-order model was chosen because the empirical evidence shows that it satisfactorily operationalises the theoretical model of aggressive behaviour with which the instrument was constructed, assuming that the four subscales are necessary as a whole, but by themselves are not sufficient to assess aggressive behaviour by means of its items.

Resumen Objetivo: Establecer las propiedades psicométricas del cuestionario de agresión (CA) en una muestra de niños y adolescentes colombianos. Método: El AQ fue sometido al juicio de siete expertos con el fin de verificar y ajustar la claridad de los ítems teniendo en cuenta las características de la población colombiana. Luego de este análisis y ajuste de ítems, se aplicó el instrumento a una muestra de 892 participantes entre 10 y 23 años de edad. Para la validez se tuvo en cuenta la evidencia de la estructura interna a través del análisis factorial confirmatorio y la evidencia basada en la relación con otras variables. Resultados: El análisis factorial confirmatorio mostró dos modelos, uno de correlación factorial y otro de segundo orden indicando un ajuste del modelo. Asimismo, se calculó la consistencia interna mediante el índice Omega, que mostró precisión en las medidas para cada factor en cada uno de los modelos. El análisis sugirió la eliminación de cuatro ítems. Conclusiones: Se eligió el modelo de primer orden porque la evidencia empírica muestra que operacionaliza satisfactoriamente el modelo teórico de conducta agresiva con el que se construyó el instrumento, asumiendo que las cuatro subescalas son necesarias en su conjunto, pero por sí solas no son suficientes para evaluar la conducta agresiva por medio de sus ítems.

Abstract Over the last decades, institutional interventions in the Andean regions of northwest Argentina have been mainly focused on stimulating the production of Andean crops through Agroecological Transition Processes. Despite these efforts, Andean crop production remains marginal compared to conventional commercial horticulture. In this paper I intend to provide ethnographic data to challenge the premature diagnosis according to which both production models compete with each other to the disadvantage of more sustainable practices, in order to argue that, at times, both forms of production may constitute strategies deployed by the same extended families in order to achieve two complementary goals, namely: to generate sufficient economic income for domestic reproduction, but at the same time to maintain the production of crops of affective and cultural value, as well as the plots where they are produced, which are of greater ancestral importance but less profitable, and which through this type of creative solutions are protected from the excessive aggressiveness of conventional agriculture. decades Processes efforts horticulture practices that times goals namely reproduction value produced profitable agriculture

Resumen La intervenciones institucionales que tuvieron lugar en las regiones andinas del noroeste argentino durante las últimas décadas han estado ancladas principalmente en estimular la producción de cultivos andinos mediante Procesos de Transición Agroecológica. A pesar de estos esfuerzos, la producción de cultivos andinos sigue resultando marginal en comparación a la horticultura comercial mediante agricultura convencional. En este artículo propongo aportar datos etnográficos que permitan poner en debate el diagnóstico apresurado según el cual ambos modelos productivos compiten entre sí en perjuicio de las prácticas más sustentables, para sostener que, en ocasiones, ambas formas de producción pueden constituir estrategias desplegadas por las mismas familias extensas con el fin de lograr dos objetivos complementarios, a saber: generar ingresos económicos suficientes para la reproducción doméstica, pero a la vez mantener vigente la producción de cultivos de valor afectivo y cultural, así como las parcelas agrícolas donde éstos son producidos, de mayor importancia ancestral pero menor rentabilidad, y que mediante este tipo de soluciones creativas son amparados de la excesiva agresividad de la agricultura convencional. Agroecológica esfuerzos convencional sustentables ocasiones complementarios saber doméstica cultural producidos rentabilidad

ABSTRACT Meloidogyne enterolobii is currently the most damaging nematode of the genus Meloidogyne due to its aggressiveness and ability to overcome existing sources of resistance; therefore, the search for genotypes with resistance in crops of high economic importance such as chili pepper (Capsicum annuum L. var. annuum) is one of the greatest challenges facing agricultural researchers. The aim of this study was to determine the level of resistance in C. annuum landraces from Mexico to different population densities of M. enterolobii. Five C. annuum landraces (UTC24, UTC25, UTC66, UTC67, and UTC90) and the commercial cv. Revelation were used. The experiment was conducted twice under greenhouse conditions with a randomized block design with four replicates per genotype and cultivar. Inoculation was performed on 21-d-old seedlings with inoculum doses of 0, 4500, 9000, and 13500 eggs plant-1. The gall index, reproduction factor, and reproduction index were evaluated at 42 and 63 d after inoculation. Genotypes UTC66, UTC67, and UTC90 showed a higher level of resistance with a damage percentage lower than 50% compared to ‘Revelation’ (susceptible). Genotype UTC90 showed the lowest reproduction factor and index, so it was considered a highly resistant genotype to an inoculum dose of 4500 M. enterolobii eggs with a damage percentage of less than 10%, while, at a dose of 13 500 eggs, its resistance level was intermediate. The results of this study contribute to the search for sources of resistance to M. enterolobii in chili pepper landraces.

RESUMEN Introducción: la hospitalización en edad pediátrica supone un acontecimiento vital que genera un gran nivel de estrés y ansiedad en el paciente. En función del momento evolutivo en el que se presente la patología que motiva el ingreso, así como las características que definan la misma, existe un riesgo potencial de que se originen una serie de alteraciones emocionales y conductuales en el niño que modifiquen su desarrollo personal. Objetivo: describir la respuesta emocional de niños que se encuentran atravesando una larga estadía hospitalaria. Métodos: se realizó un estudio observacional, descriptivo, transversal en el período de noviembre 2023 a enero 2024, para una metodología cualitativa. La muestra estuvo conformada por 10 niños entre ocho y 15 años, utilizándose un muestreo no probabilístico de sujetos tipo. Como métodos empíricos fueron aplicados el Test de completamiento de frases de Rotter, DMR, y la entrevista semiestructurada. Resultados: la respuesta emocional estuvo relacionada según la percepción de mejoría clínica. Se identificó cierta ansiedad e incertidumbre ante los procederes médicos, unido a esto, miedo e inseguridad. También ideas pesimistas, tristeza, irritabilidad y agresividad encubierta y manifiesta para con el cuidador responsable, así como para el personal médico. Conclusiones: existe una preocupación significativa para la familia de estos pacientes, así como para los mismos niños que formaron parte del estudio, con respecto al manejo de las emociones identificadas, que además, en muchas ocasiones interfieren en el proceso de hospitalización y el de recuperación.

ABSTRACT Introduction: hospitalization in the pediatric age group is a vital event that generates a high level of stress and anxiety in the patient. Depending on the evolutionary moment in which the pathology that motivates the admission is presented, as well as the characteristics that define it, there is a potential risk of originating a series of emotional and behavioral alterations in the child that modify his or her personal development. Objective: to describe the emotional response of children undergoing a long hospital stay. Methods: an observational, descriptive, cross-sectional study was carried out from November 2023 to January 2024, using a qualitative methodology. The sample consisted of 10 children between eight and 15 years of age, using a non-probabilistic sampling of typical subjects. The empirical methods used were the Rotter's sentence completion test, DMR, and the semi-structured interview. Results: the emotional response was related to the perception of clinical improvement. Some anxiety and uncertainty before medical procedures were identified, together with fear and insecurity. Also, pessimistic ideas, sadness, irritability and covert and overt aggressiveness towards the responsible caregiver as well as towards the medical staff. Conclusions: there is a significant concern for the family of these patients as well as for the children who were part of the study, regarding the management of the identified emotions, which in many occasions interfere in the hospitalization and recovery process.

Abstract (Introduction): In July 2023 was announced the end of planetary warming and the beginning of the era of the global boiling. A climatic anomaly that unprecedented, aggressiveness will hit the Central American region. (Methodology): Through technological surveillance tools and data analytics, this study shows a series of challenges and opportunities to meet this threat and move towards resilient regional performance. (Results): All countries have signed agreements and declaratory public policies for the climate resilience, however historical failures persist as well environmental passives to reduce greenhouse gas emissions and the strong dependence for the use of fossil energy. In contrast, Central America enjoys a matrix of opportunities to increase the climatic ambition, also a diverse mix of renewable energy sources, environmental pay mechanisms and actions to impulse circular economy and the bioeconomy (Conclusions): The regional agenda fail in connect to a climate shielding to respond the rigors of the boiling era. Regarding those balances, and the scientific evidence, a road map, with climate smart and socially inclusive actions, is proposed. (Recommendations): For the monitoring, research, and education programs on the boiling era, a regional observatory, on climate resilience (OR2C), is recommended.

Resumen (Introducción): En julio del 2023 se anunció el fin del calentamiento planetario y el inicio de la era de la ebullición global. Una anomalía climática cuya agresividad, sin precedentes, azotará la región centroamericana. (Metodología): Mediante herramientas de vigilancia tecnológica y analítica de datos, este estudio expone una serie de retos y oportunidades para enfrentar esta amenaza y mejorar el desempeño regional resiliente. (Resultados): Todos los países han firmado acuerdos y han hecho declaratorias sobre política pública para la resiliencia climática, empero persisten fallas históricas y estructurales, así como pasivos ambientales relacionados con la reducción de emisiones de gases de efecto invernadero y la fuerte dependencia por el uso de combustibles fósiles. En contraste, Centroamérica goza de una matriz de oportunidades para aumentar la ambición climática, cuenta con diversas fuentes de energía renovable, mecanismos para incentivar el pago por servicios ambientales y acciones para impulsar la economía circular y la bioeconomía. (Conclusiones): La agenda regional no se conecta con el suficiente blindaje climático que se requiere para contrarrestar los rigores de la era de la ebullición. De estos balances, y según la evidencia científica, se plantea una hoja de ruta con acciones climáticamente inteligentes y socialmente inclusivas. (Recomendaciones): Se sugiere crear un observatorio regional sobre resiliencia climática, (OR2C), para el monitoreo, investigación y educación sobre la era de la ebullición.

Abstract Frequently, aggressiveness and violence are used as synonymous. However, these are two complex and different phenomena that scientists and philosophers have studied. In this paper, we make a difference between aggressiveness and violence. Aggressiveness must be considered utilitarian behavior that harms or destroys objects or subjects. Aggressiveness is a primitive way to conduct, and here, we discuss anatomic and functional encephalic systems. This involuntary and instinctive behavior is triggered when the animal is required to hunt a press, defend its territory when young, or compete for a mate for reproductive purposes. The aggressiveness will be violence when it pursues a social, political, economic, or criminal goal. A violent or aggressive act is not distinguished by the outcome but by intentionality. Indeed, a violent action could have the same material consequences as an aggressive act with a different goal. Aggression-violence is a biological phenomenon and the result of culture, societal life, political relations, and current moral conditions. We often tend to simplify the phenomena, and we have discussed aggressiveness-violence, but there are also other phenomena, such as empathy and mirror behavior. Empathy, compassion, and affection should be studied alongside the aggressive-violent process.

Thyroid cancer (TC) is the first malignant tumor in endocrine glands, and it is estimated that by 2030 it will be in the top five cancers worldwide. In Chile, TC was recently included as pathology No. 82 with Explicit Health Guarantees, which implies allocating significant public and private resources to the treatment of patients with a cancer that is on the rise. There are groups of young patients with small tumors that present a more aggressive clinical behavior, where decision-making could be advanced. Specifically, a group of patients under 55 years of age with tumors less than 2 cm in size but with regional metastases, that lack indication for radioiodine therapy and could require complementary treatment or present a worse evolution. Clinical and molecular tools to guide appropriate treatment in patients with lymph node metastases are limited and have not been updated. There are tumorigenicity and prognostic factors, such as EpithelialMesenchymal Transition (EMT) and Cancer Stem Cells (CSC) markers that have been incorporated into the study of other tumors and recently in thyroid cancer. Studies linking EMT and CSC with TC currently point to molecular and genetic description, with few reports clinically correlating these findings (particularly in subgroups with particular characteristics of aggressiveness) and proposing them as tumorigenicity and prognosis markers. The description of these biomarkers in the described population could facilitate decision-making regarding follow-up, surgical therapy, and radioiodine therapy.

Resumen El cáncer de tiroides (CT) es el primer tumor maligno en glándulas endocrinas, y se estima que al 2030 estará en el top cinco de cáncer a nivel mundial. En Chile, el CT fue incluido, recientemente, como la patología N° 82 con Garantías Explícitas de Salud, lo que implica destinar importantes recursos públicos y privados al tratamiento de pacientes con un cáncer que va en aumento en el mundo. Existen grupos de pacientes jóvenes con tumores pequeños que presentan un comportamiento clínico más agresivo desde el inicio, donde se podría adelantar la toma de decisiones. Específicamente, destaca un grupo de pacientes menores de 55 años con tumores pequeños menores de 2 cm, pero con metástasis regionales, que quedan fuera de la indicación de radioyodoterapia y podrían requerir tratamiento complementario o presentar peor evolución. Las herramientas clínicas y moleculares para guiar el tratamiento adecuado en pacientes con metástasis linfonodales son limitadas y no han sido actualizadas hasta el momento. Existen factores de tumorigenicidad y pronóstico, tales como los marcadores de Transición Epitelio-Mesenquimal (TEM) y Cáncer Stem Cells (CSC) que se han incorporado al estudio de otros tumores y recientemente en cáncer de tiroides. Actualmente estudios que relacionan TEM y CSC con CT apuntan a la descripción molecular y genética, con escasos reportes que correlacionen, clínicamente, estos hallazgos, (particularmente en subgrupos con características particulares de agresividad) y que los propongan como marcadores de tumorigenicidad y pronóstico. La descripción de estos biomarcadores en la población descrita podría facilitar la toma de decisiones en cuanto a seguimiento, terapia quirúrgica y radioyodoterapia.

Abstract This study analyzes the effect of emotional self-efficacy, irritability and aggressiveness on empathy in vulnerable adolescents. Quantitative, non-experimental- cross-sectional study and correlational scope. We worked with 69 adolescents to whom the Interpersonal Reactivity Index and the Self-Efficacy Scales for Emotional Regulation, Irritability and Physical and Verbal Aggressiveness were applied. Empathy correlated directly with emotional self-efficacy and inversely with irritability and physical and verbal aggressiveness. Path analysis showed that emotional self-efficacy, irritability, physical and verbal aggressiveness provided a predictive effect on perspective taking, concern, empathy, and emotional distress.

Resumen Este estudio analiza el efecto de la autoeficacia emocional, la irritabilidad y la agresividad sobre la empatía en adolescentes vulnerables. Estudio cuantitativo, no experimental- transversal y alcance correlacional. Participaron 69 adolescentes, a quienes se les aplicó el Índice de Reactividad Interpersonal y las Escalas de Autoeficacia para la Regulación Emocional, Irritabilidad y Agresividad Física y Verbal. La empatía correlacionó directamente con la autoeficacia emocional e inversamente con irritabilidad y agresividad física y verbal. El análisis de rutas mostró que la autoeficacia emocional, irritabilidad, agresividad física y verbal aportaron un efecto predictor sobre la toma de perspectiva, preocupación empatía y malestar emocional.

Abstract This work analyzes the gender discourses detected among male and female workers in Ecuador that are the foundation of the imaginary on which sexual harassment in the workplace is based. The methodology is based on discourse analysis applied to the testimonies of sixteen discussion groups. It highlights the aggressiveness that men show towards their female coworkers and the condescension with which they justify their sexual harassment. A model of woman emerges, that of the “brave woman”, who shows a fierce character to defend herself from harassment, and which differs from the traditional stereotype of the docile and warm woman. Both men and women understand that the responsibility of setting limits lies with the female workers.

Resumo Este trabalho analisa os discursos de género detectados entre trabalhadores e trabalhadoras no Equador, que fundamentam o imaginário em que se baseia o assédio sexual no local de trabalho. A metodologia baseia-se na análise do discurso aplicada aos testemunhos de dezasseis grupos de discussão. Destaca a agressividade que os homens demonstram para com as suas colegas e a condescendência com que elas justificam o assédio sexual deles. Surge um modelo de mulher, o da “mulher brava”, que evidencia um caráter agreste para se defender do assédio, e que difere do estereótipo tradicional da mulher dócil e calorosa. Tanto homem como mulheres compreendem que a responsabilidade de estabelecer limites cabe às trabalhadoras.

Resumen Este trabajo analiza los discursos de género detectados entre las trabajadoras y trabajadores en Ecuador, que fundamentan el imaginario en el que se sustenta el acoso sexual en el ámbito laboral. La metodología se apoya en el análisis del discurso aplicado a los testimonios de dieciséis grupos de discusión. Destaca la agresividad que los hombres muestran hacia sus compañeras y la condescendencia con la que ellas justifican el acoso sexual de ellos. Emerge un modelo de mujer, el de la “mujer brava”, que muestra un carácter arisco para defenderse del acoso, y que se diferencia del estereotipo tradicional de la mujer dócil y cálida. Conciben, tanto ellas como ellos, que la responsabilidad de poner límites es de las trabajadoras.

ABSTRACT The purpose of this research was to evaluate the psychological effects of the pandemic confinement that occurred during 2020 in students, teachers, administrative and service personnel, belonging to the faculty of education, science, and technology of a public university in the north of Ecuador. The study took place after the mandatory confinement period was decreed in March 2020 by the Presidency of Ecuador, to protect the health of the population during the critical period of the pandemic caused by the covid-19 virus. In this exploratory cross-sectional study, a survey made up of demographic questions and a screening test called SPEC (Psychological Screening in Critical Events) was used. The sample was 1444 people, and it was implemented through electronic means distributed through the digital channels of the institution. The results showed that there is a high population with problems related to anxiety (19.7%), depression (11.7%), trauma (10.3%), aggressiveness (32.6%), and even suicide (8.9%) and that comorbidity is very common in many cases of the problems evaluated.

RESUMO O objetivo desta pesquisa foi avaliar os efeitos psicológicos do confinamento pandémico ocorrido durante 2020 em estudantes, professores, pessoal administrativo e de serviço pertencentes à faculdade de educação, ciência e tecnologia de uma universidade pública no norte do Equador. O estudo ocorreu após o período de confinamento obrigatório decretado em março de 2020 pela Presidência do Equador, visando proteger a saúde da população durante o período crítico da pandemia causada pelo vírus covid-19. Neste estudo exploratório transversal, utilizou-se uma pesquisa composta por perguntas demográficas e um teste de triagem chamado SPEC (Avaliação Psicológica em Eventos Críticos). A amostra foi composta por 1444 pessoas e foi implementada por meio de meios eletrônicos distribuídos pelos canais digitais da instituição. Os resultados mostraram que há uma alta proporção da população com problemas relacionados à ansiedade (19,7%), depressão (11,7%), trauma (10,3%), agressividade (32,6%) e até mesmo suicídio (8,9%), e que a comorbidade é muito comum em muitos casos dos problemas avaliados.

RESUMEN El propósito de esta investigación fue evaluar los efectos psicológicos del confinamiento por pandemia acaecido durante 2020 en estudiantes, profesores, personal administrativo y de servicio de la facultad de educación, ciencia y tecnología de una universidad pública en el norte de Ecuador. El estudio tuvo lugar después de dicho período decretado por la Presidencia de Ecuador, para proteger la salud de la población durante el período crítico de la pandemia causada por el virus covid-19. En este estudio exploratorio transversal, se utilizó una encuesta compuesta por preguntas demográficas y una prueba de cribaje llamada SPEC (Evaluación Psicológica en Eventos Críticos). La muestra fue de 1444 personas y se implementó a través de medios electrónicos distribuidos por los canales digitales de la institución. Los resultados mostraron que existe una alta población con problemas relacionados con la ansiedad (19.7%), depresión (11.7%), trauma (10.3%), agresividad (32.6%) e incluso suicidio (8.9%), y que la comorbilidad es muy común en muchos casos de los problemas evaluados.

ABSTRACT Epithelioma cuniculatum, or plantar verrucous carcinoma, is an unusual type of epidermoid carcinoma, well differentiated. It presents local aggressiveness and poor capacity to metastasize. It presents a slow and progressive growth. Its treatment is usually complete and extensive resection.

RESUMEN El epitelioma cuniculatum, o carcinoma verrugoso plantar, es un tipo infrecuente y bien diferenciado de carcinoma espinocelular. Es un carcinoma de agresividad local y escasa capacidad de producir metástasis. Presenta un crecimiento lento y progresivo. El tratamiento consiste en la resección completa de la lesión.

RESUMEN Ensayo con reflexiones sobre la violencia social y sus manifestaciones en la escuela. Es una relación que no se puede descuidar nunca, pues la educación también contiene tendencias sociales que reproducen la violencia, la agresión y la barbarie. Con textos de autores de la Escuela de Frankfurt, se discute la violencia, destacando sus vínculos con el sistema social y económico, que reproduce a sí mismo exactamente promoviendo la destrucción de las personas, las culturas y el medio ambiente. Las siguientes son consideraciones que muestran que tal destructividad afecta la formación de subjetividades y la disposición de los individuos a conformarse o resistir. Finalmente, se plantea la posibilidad histórica de concretar la dimensión política de la educación como forma de oponer y confrontar la agresividad y violencia inherentes a las sociedades capitalistas avanzadas. escuela nunca barbarie Frankfurt económico personas ambiente resistir Finalmente avanzadas

ABSTRACT Essay with reflections on social violence and its manifestations at school. It is a relationship that can never be neglected, because education also contains the social tendencies that reproduce violence, aggressiveness, and barbarism. Based on texts by authors from the Frankfurt School, the theme of violence is discussed, highlighting its links with the social and economic system, which is reproduced exactly by promoting the destruction of people, cultures, and environment. Next, considerations are presented that show that such destructiveness affects the formation of subjectivities and the willingness of individuals to conform or resist this tendency. Finally, it discusses the historical possibility of concretizing the political dimension of education as a way of opposing and confronting the aggressiveness and violence inherent to advanced capitalist societies. school neglected barbarism School discussed system people cultures environment Next tendency Finally societies

RESUMO Ensaio no qual se apresenta reflexões sobre violência social e suas manifestações na escola. Trata-se de relação que jamais pode ser negligenciada, pois a educação também contém as tendências sociais que reproduzem a violência, a agressividade e a barbárie. Com base em autores da Escola de Frankfurt, discorre-se sobre o tema da violência, destacando seus nexos com o sistema social e econômico, que se reproduz exatamente promovendo a destruição de pessoas, culturas e o meio ambiente. Seguem considerações que evidenciam que tal destrutividade repercute na formação das subjetividades e das disposições de os indivíduos se conformarem ou resistirem a essa tendência. Por fim, aventa-se a possibilidade histórica de concretização da dimensão política da educação como forma de contraposição e enfrentamento da agressividade e violência inerentes às sociedades do capitalismo avançado. escola Tratase Trata negligenciada barbárie Frankfurt discorrese discorre econômico pessoas ambiente tendência fim aventase aventa avançado

Abstract The use of by-products and recyclable materials in the production of concrete has become an interesting alternative to mitigate environmental impacts, especially those generated by the construction industry, as long as their mechanical and durability properties do not early compromise the service life of the structures. The resistance of concrete to the penetration of harmful agents, such as chloride ions, is an important property since it directly correlates with the performance, integrity, and durability of reinforced concrete structures. This study evaluate four concrete mixes were cast for aggressiveness class III of NBR 6118 [1] produced with 8% of partial replacement of Portland cement with silica fume, resulting of metallurgical production, and with 30% partial replacement of natural fine aggregates by recycled fine aggregate from fresh concrete waste, obtained from the concrete production process in concrete mixer trucks. At 28 days of age, the specimen was submitted to capillarity, mechanical resistance and chloride migration tests, according to the NT BUILD 492 standard [2]. In general, the results indicated that the proposed replacements improved mechanical properties and chloride ion penetration resistance, mainly with the incorporation of silica fume. byproducts products impacts industry structures agents ions performance integrity 611 1 [1 8 fume 30 waste trucks 2 age capillarity tests 49 2. . [2] general 61 [ 3 4 [2 6

Resumo A utilização de subprodutos e materiais recicláveis na produção de concreto tornou-se uma alternativa interessante para mitigar os impactos ambientais, principalmente os gerados pela construção civil, desde que suas propriedades mecânicas e de durabilidade não comprometam precocemente a vida útil das estruturas. A resistência do concreto à penetração de agentes nocivos, tais como íons cloreto, é uma propriedade importante, pois se correlaciona diretamente com o desempenho, integridade e durabilidade das estruturas de concreto armado. Este estudo avaliou o desempenho de quatro misturas de concreto moldadas para classe de agressividade III da NBR 6118 [1] produzidas com 8% de substituição parcial de cimento Portland por sílica ativa, resíduo de produção metalúrgica, e com 30% de substituição parcial de agregados miúdos naturais por agregado miúdo reciclado de resíduo de concreto fresco, obtido do processo de produção de concreto em caminhões betoneira. Aos 28 dias de idade, as amostras foram submetidas aos testes capilaridade, resistência mecânica e de migração de cloretos, este, conforme preconiza a norma NT BUILD 492 [2]. De maneira geral, os resultados indicaram que as substituições propostas melhoraram as propriedades mecânicas e a resistência à penetração do íon cloreto, principalmente quando se utilizou a incorporação de sílica ativa. tornouse tornou ambientais civil nocivos cloreto importante armado 611 1 [1 8 ativa metalúrgica 30 fresco betoneira 2 idade capilaridade cloretos este 49 2. . [2] geral 61 [ 3 4 [2 6

ABSTRACT Purpose: This paper aims to verify whether the management of taxable income through aggressive tax practices negatively impacts the accuracy of market analysts’ forecasts. Originality/value: The central contribution of this study is to relate tax aggressiveness with more significant errors in analysts’ forecasts. Thus, the relevance of this paper is in showing that this practice can lead to a greater perception of companies’ risks and more significant informational asymmetry, in addition to influencing stock prices and resulting in lower analyst accuracy. Design/methodology/approach: This research paper was developed from regression models with panel data with random effects, also using estimators based on instrumental variables with the application of Jensen’s test to verify the validity of the generalized method of moments (GMM) estimation. The data were treated with the winsorization technique at the 1% level. Findings: A sample of companies listed on the B3 between 2010 and 2017 (with a total of 2,805 valid observations) showed that companies with higher tax aggressiveness are subject to a higher analyst forecast error. Thus, it is inferred that, for more aggressive companies, the degree of analyst predictability decreases. With this drop in the quality of analysts’ forecasts, the users of their forecasts and reports are more vulnerable to informational asymmetry. Purpose analysts Originality/value Originalityvalue Originality value Thus asymmetry Design/methodology/approach Designmethodologyapproach Design methodology approach effects Jensens Jensen s GMM (GMM estimation 1 level Findings B 201 2805 2 805 2,80 observations error decreases 20 280 80 2,8 28 8 2,

RESUMO Objetivo: O presente trabalho se propôs a verificar se o gerenciamento do lucro tributável por meio de práticas de agressividade tributária gera um impacto negativo na acurácia das previsões dos analistas de mercado. Originalidade/valor: A contribuição central deste estudo é a de relacionar a agressividade tributária com maiores erros nas previsões dos analistas. Com isso, a relevância deste estudo está em evidenciar que essa prática pode levar a uma maior percepção dos riscos das companhias e maior assimetria informacional, além de influenciar os preços das ações e acarretar menor acurácia dos analistas. Design/metodologia/abordagem: Esta pesquisa foi desenvolvida a partir de modelos de regressões com dados em painel com efeitos aleatórios. Também foram utilizados estimadores baseados em variáveis instrumentais com a aplicação do teste de Jensen para verificação da validade da estimação pelo método de momentos generalizado (generalized method of moments – GMM). Os dados foram tratados com a técnica de winsorização ao nível de 1%. Resultados: A partir de uma amostra composta por empresas listadas na B3 entre 2010 e 2017 (com um total de 2.805 observações válidas), os resultados mostraram que as empresas que apresentam maior agressividade tributária estão sujeitas a um maior erro de previsão dos analistas. Assim, infere-se que, para as empresas mais agressivas, o grau de previsibilidade dos analistas diminui. Com essa queda na qualidade da previsão dos analistas, os usuários de suas previsões e relatórios tornam-se mais vulneráveis à assimetria informacional. Objetivo mercado Originalidade/valor Originalidadevalor Originalidade valor isso informacional Design/metodologia/abordagem Designmetodologiaabordagem Design metodologia abordagem aleatórios generalized GMM. GMM . GMM) 1 1% Resultados B 201 2805 2 805 2.80 válidas, válidas , válidas) Assim inferese infere agressivas diminui tornamse tornam 20 280 80 2.8 28 8 2.

ABSTRACT The COVID-19 pandemic and the measures established by governments to protect populations have caused significant harm to humanity, not only regarding public health but also in terms of economic and social welfare. This study aims to assess the health status and behavior of pets during the total lockdown period in Algeria from March to June 2020. An online questionnaire consisting of 20 questions was published. A total of 200 pet owners across various departments participated. The lockdown had a negative impact on the physical health of 19.5% of individuals, with weight gain, allergies, and diabetes being predominant (51.8%, 27.7%, and 20.5%, respectively). 38.5% of cases report behavioral disorders, with hyper attachment, aggressiveness, and disobedience being predominant (47.3%, 27.6%, and 18.4%, respectively). The study helped estimate the negative impact of the lockdown on the physical and psychological health of animals. This information will aid in preventing similar damage in case of future pandemics or epidemics. COVID19 COVID 19 COVID-1 humanity welfare 2020 2 published participated 195 5 19.5 individuals gain allergies 51.8%, 518 51 8 (51.8% 277 27 7 27.7% 205 20.5% respectively. respectively . respectively) 385 38 38.5 disorders attachment aggressiveness 47.3%, 473 47 3 (47.3% 276 6 27.6% 184 18 4 18.4% animals epidemics COVID1 1 COVID- 202 19. 51.8% (51.8 27.7 20.5 38. 47.3% (47.3 27.6 18.4 51.8 (51. 27. 20. 47.3 (47. 18. 51. (51 47. (47 (5 (4 (

RESUMO A pandemia de COVID-19 e as medidas estabelecidas pelos governos para proteger as populações causaram danos significativos à humanidade, não apenas em relação à saúde pública, mas também em termos de bem-estar econômico e social. Este estudo tem como objetivo avaliar o estado de saúde e o comportamento dos animais de estimação durante o período de lockdown total na Argélia, de março a junho de 2020. Foi publicado um questionário on-line composto por 20 perguntas. Um total de 200 proprietários de animais de estimação de vários departamentos participaram. O confinamento teve um impacto negativo na saúde física de 19,5% dos indivíduos, com predominância de ganho de peso, alergias e diabetes (51,8%, 27,7% e 20,5%, respectivamente). 38,5% dos casos relatam distúrbios comportamentais, com predominância de hiperapego, agressividade e desobediência (47,3%, 27,6% e 18,4%, respectivamente). O estudo ajudou a estimar o impacto negativo do lockdown na saúde física e psicológica dos animais. Essas informações ajudarão a evitar danos semelhantes em caso de futuras pandemias ou epidemias. COVID19 COVID 19 COVID-1 humanidade pública bemestar bem estar social Argélia 2020 online on line 2 perguntas participaram 195 5 19,5 indivíduos peso 51,8%, 518 51 8 (51,8% 277 27 7 27,7 205 20,5% respectivamente. respectivamente . respectivamente) 385 38 38,5 comportamentais hiperapego 47,3%, 473 47 3 (47,3% 276 6 27,6 184 18 4 18,4% epidemias COVID1 1 COVID- 202 19, 51,8% (51,8 27, 20,5 38, 47,3% (47,3 18,4 51,8 (51, 20, 47,3 (47, 18, 51, (51 47, (47 (5 (4 (