Centro Universitario Mendoza, Facultad de Filosofía y Letras: Open Journal Systems FFYL
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Peña, Juan Cristóbal. Letras torcidas. Un perfil de Mariana Callejas. Leila Guerriero (Ed.). Ediciones Universidad Diego Portales, 2024, 278 pp.: ISBN: 978-956-314-601-1
Get PDFJuan Cristóbal Peña (1969) es un periodista y académico chileno, director del Magíster en Escritura Narrativa de la Universidad Alberto Hurtado y ganador en el año 2008 del Premio al Nuevo Periodismo Iberoamericano, de la Fundación Gabriel García Márquez, por el texto Viaje al fondo de la biblioteca de Pinochet, publicado en 2007 por el Centro de Investigación Periodística (Ciper). Siguiendo ese hilo investigativo, en 2013 Juan Cristóbal Peña publicó con la editorial Debate el libro La secreta vida literaria de Augusto Pinochet
La raíz de la finitud del ente: Autodeterminación y potencialidad del esse según Étienne Gilson
Get PDFThis paper aims to raise the issue of the finitude of ens based on its constitutive principles, in Gilson's interpretation of Thomas Aquinas. Being the essence, limiting principle and receiving subject of esse, the entitative finitude seems to fall upon it. However, we explore the hypothesis that it is the very esse – relatively to the essence – the principle of such finitude. This seems to be indicated by Gilson when speaking of self-determination of esse, a degree of intensity, reciprocity, and quantity or measure of being, all of which would imply a potential aspect of the act of being. This would question the relationship between act and potency, as well as the relationship between recipient-received, held by Aquinas. In this regard, we understand that Gilson's development of the notion of virtus essendi is key to redefining the previous hypothesis, and responding to the issue raised.El trabajo tiene por objeto plantear el tema de la finitud del ente a partir de sus principios constitutivos, en la lectura que hace Gilson de Tomás de Aquino. Siendo la esencia, principio limitante y sujeto receptor del esse, parece recaer en ella la finitud entitativa. Sin embargo, exploramos la hipótesis de que el mismo esse – relativamente a la esencia -, es principio de tal finitud. Esto parece indicar Gilson al hablar de autodeterminación del esse, grado propio de intensidad, reciprocidad, y cantidad o medida de ser, todo lo cual supondría un aspecto potencial en el acto de ser. Ello cuestionaría la relación potencia-acto; recipiente-recibido sostenida por Aquino. Al respecto, entendemos que el desarrollo que hace Gilson de la noción de virtus essendi es clave para redefinir la hipótesis anterior, y responder al tema planteado
José María Felipe Mendoza, Las Disputaciones Metafísicas I-XI de Francisco Suárez. Guía de lectura, tesis fundamentales y legado, Buenos Aires: Teseo, 2025, 204 pp. ISBN: 978-987-723-492-3
Get PDFRemoción de arsénico en aguas subterráneas con Moringa oleífera una alternativa sustentable para el tratamiento de acuíferos en Entre Ríos
Get PDFNaturally occurring arsenic in groundwater intended for human consumption represents a significant public health concern. Regulatory frameworks, such as the Argentine Food Code (0.01 mg/L) and Decree 2235/02 (0.05 mg/L), have established permissible limits for arsenic concentrations in drinking water. This study investigated the effectiveness of Moringa oleifera seeds in removing arsenic from two groundwater wells located in Colonia Ensayo (Paraná Aquifer). Two treatment methods were compared: Moringa seeds with seed coat (Treatment A) and without seed coat (Treatment B).
The results revealed a significant interaction between the treatment type and the water source (p < 0.001), indicating that the efficiency of Moringa is influenced by the specific characteristics of the water. This was further supported by a strong negative correlation (r = -0.87) between arsenic removal efficiency and bicarbonate concentration. These findings highlight the importance of considering water chemistry when applying Moringa oleifera seed powder as a remediation method. Given its sustainable and eco-friendly nature, Moringa oleifera represents a promising alternative for reducing arsenic levels in drinking water.
Future research should focus on optimizing application parameters for water sources with varying physicochemical characteristics and exploring the feasibility of medium-scale implementation.El arsénico de origen natural en aguas subterráneas de consumo es una problemática que afecta a la salud pública. Existen normativas que establecen límites regulatorios como el Código Alimentario Argentino (0,01 mg/L) y el Decreto 2235/02 (0,05 mg/L). Este estudio investigó la eficiencia de semilla de Moringa oleífera en la remoción de arsénico en dos pozos de agua de Colonia Ensayo (Acuífero Paraná). Se compararon dos tratamientos: Semilla de Moringa con cáscara (Tratamiento A) y sin cáscara (Tratamiento B). Los resultados mostraron una interacción significativa entre el tratamiento y el pozo (p<0.001), lo cual sugiere que la eficiencia de Moringa se ve influenciada por las características del agua. Esto también se observa en la correlación negativa (r= -0,87) entre el porcentaje de remoción de arsénico y la concentración de bicarbonatos. Esto subraya la importancia de considerar las características del agua en el uso de harina de semillas de Moringa oleífera, la cual puede ser una buena opción sostenible y ecológica para disminuir el arsénico en aguas de consumo. Futuras investigaciones podrían enfocarse en optimizar los parámetros de aplicación de ésta en agua de diferentes características fisicoquímicas y una aplicación a mediana escala
Croscompilación Python de VHDL para promover el aprendizaje de Hardware Reconfigurable
Get PDFReconfigurable hardware devices have revolutionized the way custom electronic systems are designed, enabling solutions that maximize the use of limited resources, such as the battery life of portable devices or the space available in functional blocks that must operate in a macro system with significant area constraints. However, achieving expertise in the management of these devices is a challenge for both industry and academia. While tools currently exist that provide high-level design capabilities, the efficiency achieved in the final solution with this method is not optimal. Therefore, it is still necessary to work largely with low-level designs, particularly with hardware description languages, which have proven particularly difficult to learn for many electronic engineering students. This paper presents the results of a research project aimed at creating a cross-compilation tool that allows students to describe their hardware systems in a high-level language such as Python. The tool generates a VHDL version suitable for synthesizing a custom processor with optimal resource utilization. The results indicate an improvement in the learning rate given in terms of interest, motivation and assimilation, following Kolb's learning styles model.Los dispositivos de hardware reconfigurable han revolucionado la forma en que se diseñan sistemas electrónicos a la medida y han permitido lograr soluciones que aprovechan al máximo recursos limitados como la batería o el espacio. Sin embargo, lograr la experticia en estos dispositivos es un reto tanto para la industria como para la academia. Si bien actualmente existen herramientas que proveen la posibilidad de diseños en alto nivel, la eficiencia lograda en la solución final con este método no es la más conveniente, de allí que sea aún necesario trabajar en buena medida con diseños en bajo nivel, particularmente con lenguajes de descripción de hardware, los cuales han mostrado ser particularmente difíciles de aprender para muchos estudiantes en ingeniería electrónica. En este artículo se presentan los resultados de una investigación cuyo objetivo fue la creación de una herramienta de croscompilación que permite a los alumnos describir sus sistemas hardware en el lenguaje de alto nivel Python. La herramienta genera una versión VHDL apropiada para sintetizar un procesador a la medida con uso óptimo de recursos. Los resultados indican mejoras en la tasa de aprendizaje en términos de interés, motivación y asimilación, siguiendo el modelo de estilos de aprendizaje de Kolb
La mecatrónica en la formación básica: innovación en el laboratorio para aprender física en ingeniería y tecnicatura en mecatrónica
Get PDFStudents entering Mechatronics Engineering and Technical degree often have high expectations about their professional future, but become discouraged when they realized that practical applications are addressed only in advanced years. This work proposes an educational innovation in the Basic Cycle, integrating contents of Physics I and II with the design of didactic devices using Arduino. Practical activities were developed, such as the graphical representation of the charging and discharging cycles of a capacitor using an ATmega32U4 microcontroller, allowing real-time visualization of voltage variations. This approach encourages students to take an active role by designing, programming, and experimenting with physical phenomena and their mechatronic applications, enhancing their motivation and learning. The increasing accessibility of these technologies makes it feasible to scale up the number of kits for classroom use, moving away from passive demonstrations toward hands-on experimentation. To evaluate the outcomes, we applied the Technology Readiness Level (TRL) methodology and conducted a short survey to assess students’ comprehension and their perception of the integration between physics and mechatronics. The results show a successful implementation, supporting the idea of extending this teaching strategy to other courses within the Basic Cycle of Mechatronics programs.Los estudiantes que ingresan a Ingeniería y Tecnicatura en Mecatrónica lo hacen con altas expectativas sobre su futuro profesional, pero suelen frustrarse al ver que las aplicaciones prácticas aparecen recién en los años avanzados. Este trabajo propone una innovación en el Ciclo Básico, integrando contenidos de Física I y II con el diseño de dispositivos didácticos basados en Arduino. Se desarrollaron actividades prácticas como la representación gráfica de la carga y descarga de un capacitor mediante un microcontrolador ATmega32U4, permitiendo visualizar fenómenos físicos en tiempo real. Esta propuesta busca que los estudiantes sean protagonistas del proceso, al diseñar, programar y experimentar, lo que favorece su aprendizaje y motivación. La accesibilidad actual de estas tecnologías permite escalar la implementación y reemplazar prácticas demostrativas pasivas por talleres activos. Para evaluar el impacto, se utilizó la metodología TRL (Technology Readiness Level) y una encuesta breve para conocer la percepción de los alumnos respecto a los contenidos y su relación con la mecatrónica. Los resultados fueron positivos, demostrando la efectividad de este enfoque y sugiriendo su posible aplicación en otras asignaturas del Ciclo Básico
Compensatory Growth in Pinus ponderosa (Dougl Ex Laws) Plantations Under Early Silvicultural Treatments
Get PDFEarly pruning and thinning in Pinus ponderosa, plantations in Andean Patagonia triggered compensatory growth, characterized by greater trunk growth and structural adjustments. We used a factorial design and mixed-effects models to evaluate stem growth, crown light dynamics, tracheid length (TL), foliar biomass (FB), wood density (WD), and Huber values (Hv) five years after treatment. Trees under combined pruning and thinning (PT) showed the greatest basal area increment, indicating resource reallocation to supportive structures despite early foliage loss. Pruned trees maintained higher Hv and achieved partial recovery of FB. Tracheid elongation was greatest in treated trees, suggesting accelerated xylem maturation, while WD remained unchanged. These results demonstrate the structural plasticity of P. ponderosa, which maintains hydraulic function and growth after canopy disturbance. Our findings provide useful guidance for silvicultural planning in temperate plantations.
Highlights:
Early pruning and thinning triggered compensatory stem growth through hydraulic and structural adjustments, guiding adaptive management in Andean Pinus ponderosa plantations.
The Huber value (Hv) captured the balance between conductive tissue and leaf biomass, revealing hydraulic rebalancing after canopy modification in young plantations.
Tracheid elongation indicated accelerated xylem maturation in treated trees without affecting wood density.
Findings highlight the potential of early canopy interventions to enhance productivity and hydraulic resilience in managed temperate conifer plantations.Early pruning and thinning in Pinus ponderosa, plantations in Andean Patagonia triggered compensatory growth, characterized by greater trunk growth and structural adjustments. We used a factorial design and mixed-effects models to evaluate stem growth, crown light dynamics, tracheid length (TL), foliar biomass (FB), wood density (WD), and Huber values (Hv) five years after treatment. Trees under combined pruning and thinning (PT) showed the greatest basal area increment, indicating resource reallocation to supportive structures despite early foliage loss. Pruned trees maintained higher Hv and achieved partial recovery of FB. Tracheid elongation was greatest in treated trees, suggesting accelerated xylem maturation, while WD remained unchanged. These results demonstrate the structural plasticity of P. ponderosa, which maintains hydraulic function and growth after canopy disturbance. Our findings provide useful guidance for silvicultural planning in temperate plantations.
Highlights:
Early pruning and thinning triggered compensatory stem growth through hydraulic and structural adjustments, guiding adaptive management in Andean Pinus ponderosa plantations.
The Huber value (Hv) captured the balance between conductive tissue and leaf biomass, revealing hydraulic rebalancing after canopy modification in young plantations.
Tracheid elongation indicated accelerated xylem maturation in treated trees without affecting wood density.
Findings highlight the potential of early canopy interventions to enhance productivity and hydraulic resilience in managed temperate conifer plantations
Respetar la diversidad sin perder la unidad. Apuntes de la Geografía para el estudio de las regiones sanitarias argentinas pre-pandémicas
Get PDFThe word “health regions” surfaces in publications from international and national organizations and research from different disciplines, although very few have conceptualized it (Mendes, 2013; WHO, 2017; PAHO, 2023). The objective of this article is to explore and systematize the scientific production about the concept of health regions and their dimensions of analysis in various countries, with special interest in Argentina. And highlight the theoretical contributions from Geography that enhance the operation of health regions in public health. The methodology is qualitative, based on the search and analysis of official and scientific documents that refer to health regions in times prior to the COVID-19 pandemic. The elaborate systematization advances the debate on the dimensions of the health regions already worked on and enables adjustment for their operationalization in specific contexts during and after the pandemic.La voz “regiones sanitarias” aflora en publicaciones de organismos internacionales, nacionales e investigaciones de distintas disciplinas, aunque muy pocas la han conceptualizado (Mendes, 2013; OMS, 2017; OPS, 2023). El objetivo de este artículo es explorar y sistematizar la producción científica acerca del concepto regiones sanitarias y sus dimensiones de análisis en diversos países, con especial interés en Argentina. Y destacar los aportes teóricos desde la Geografía que potencian la operatividad de las regiones sanitarias en salud pública. La metodología es cualitativa, a partir de la búsqueda y análisis de documentos oficiales y científicos que refieren a las regiones sanitarias en tiempos previos a la pandemia por COVID-19. La sistematización elaborada avanza en el debate de las dimensiones de las regiones sanitarias ya trabajadas y habilita el ajuste para su operacionalización en contextos específicos durante y luego de la pandemia.  
“Assim como o desenvolvimento está atrasado, a COVID também está atrasada”. Saúde indígena e seus determinantes socioterritoriais em Salta, Argentina (2020-2024)
No full textThe indigenous peoples living in the province of Salta have historically been positioned in a situation of subalternity and vulnerability in terms of access to territorial, cultural, linguistic and health rights. In this article, we aim to understand the health and environmental conditions prior to the emergence of the COVID-19 pandemic and the way in which pre-existing inequalities in access to the health system, service infrastructure and natural resources have made visible and/or aggravated the processes of health-disease-care-death in native populations in the north of Salta. Through the analysis of various secondary sources and in-depth interviews, among the results we highlight a series of emerging dimensions that become unavoidable when understanding the social and territorial determinations of health in indigenous contexts.Los pueblos originarios que habitan en la provincia de Salta han sido históricamente posicionados en una situación de subalternidad y vulneración en el acceso a derechos territoriales, culturales, lingüísticos y sanitarios. En este artículo, nos proponemos comprender las condiciones sanitarias y ambientales previas a la emergencia de la pandemia por COVID-19 y el modo en que las desigualdades preexistentes en el acceso al sistema de salud, la infraestructura de servicios y los bienes naturales han permitido visibilizar y/o agravar los procesos de salud-enfermedad-cuidado-muerte en poblaciones originarias del norte salteño. A través del análisis de diversas fuentes secundarias y de la realización de entrevistas en profundidad, entre los resultados destacamos una serie de dimensiones emergentes que se vuelven insoslayables a la hora de comprender las determinaciones sociales y territoriales de la salud en contextos indígenas.Os povos indígenas que vivem na província de Salta têm sido historicamente posicionados numa situação de subalternidade e vulnerabilidade em termos de acesso a direitos territoriais, culturais, linguísticos e de saúde. Neste artigo, pretendemos compreender as condições sanitárias e ambientais prévias ao surgimento da pandemia da COVID-19 e a forma como as desigualdades pré-existentes no acesso ao sistema de saúde, à infraestrutura de serviços e aos recursos naturais tornaram visíveis e/ou agravaram os processos de saúde-doença-cuidado-morte nas populações nativas do norte de Salta. Através da análise de diversas fontes secundárias e entrevistas em profundidade, entre os resultados destacamos uma série de dimensões emergentes que se tornam incontornáveis na compreensão das determinações sociais e territoriais da saúde em contextos indígenas
Distribuição espacial das doenças infecciosas e parasitárias em adolescentes do extremo-sul da Bahia – Brasil: Abordagem geográfica e epidemiológica
Get PDFInfectious and Parasitic Diseases (IPD) are of great importance to public health as they are directly associated with poverty and inadequate living conditions. In this context, the adolescent population is one of the most vulnerable groups, as their physical and mental development can be compromised by these diseases. The aim of this study is to determine the epidemiological profile of hospitalizations for infectious and parasitic diseases among adolescents residing in the health regions of Porto Seguro and Teixeira de Freitas, in the state of Bahia, Brazil, from 2013 to 2023. This is a retrospective ecological, descriptive study with a quantitative and territorial-based approach. The data were extracted from the Hospitalization Information System (SIH) and tabulated to obtain disease-specific morbidity coefficients for IPD. Data analysis showed that the main causes of hospitalization among adolescents were "other bacterial diseases," "other fevers due to arboviruses and hemorrhagic fevers due to viruses," and "diarrhea and gastroenteritis of infectious and presumed infectious origin," predominantly affecting male adolescents aged 15 to 19 years.As Doenças Infecciosas e Parasitárias (DIP) têm grande importância para a saúde pública, pois estão diretamente associadas a condições de pobreza e a situações de vida precárias. Nesse contexto, o público adolescente é um dos grupos mais vulneráveis, uma vez que o seu desenvolvimento físico e mental pode ser comprometido em função dessas doenças. O objetivo deste trabalho é determinar o perfil epidemiológico das internações hospitalares por doenças infecciosas e parasitárias entre adolescentes residentes nas regiões de saúde de Porto Seguro e Teixeira de Freitas, no estado da Bahia, Brasil, no período de 2013 a 2023. Trata-se de um estudo ecológico retrospectivo, descritivo, com abordagem quantitativa e de base territorial. Os dados foram extraídos do Sistema de Internação Hospitalar (SIH) e tabulados para a obtenção dos coeficientes de morbidade específicos por DIP. Na análise dos dados, observou-se que as principais causas de internação entre o público adolescente foram "outras doenças bacterianas", "outras febres por arbovírus e febres hemorrágicas por vírus" e "diarreia e gastroenterite de origem infecciosa e presumível", com predominância entre adolescentes do sexo masculino, na faixa etária de 15 a 19 anos