La figure de la passante: une allégorie de la décadence?

The Woman Passer-by, casually met with in modern city streets, and soon lost sight of, belongs to the legacy of Baudelaire. Such a figure, ever on the move, always on the verge of disappearance, must needs be nameless, speechless, and out of reach. She is indeed more soul than body, never implied in any love affair or sexual intercourse. If so, however, either sitting, eating or loving, as is often the case in the poetry of fin-de-siècle writers, she is warped out of her true nature and may become an allegory of Decadence, so much the more when turned into a tigress or she-wolf

A Proposal to Improve the Delivery Process at the Last Mile. Case. Drugs Under Cold Chains

Las entregas de mercancías de última milla en muchas ocasiones experimentan retrasos que pueden dañar los productos. Por tal motivo, esta investigación procedió a analizar las rutas de entrega de medicamentos, que deben permanecer en cadena de frío, en una empresa de mensajería. Se analizó el proceso de entrega, utilizando la simulación mediante el software Arena. En este estudio se propone mejorar la entrega de mercancías en la última milla. Se inicia con una búsqueda en internet sobre mejora en las entregas en el proceso de distribución logístico. Elaborado con un enfoque metodológico cuantitativo, que se estructura en cuatro etapas: 1. Observación. 2. Recopilación de información. 3. Análisis y construcción del modelo simulado. 4. Propuesta de mejora. Al desarrollar el modelo, se pudo identificar un retraso en la entrega, ya que todos los mensajeros siguen una sola ruta. Por lo tanto, se propuso dejar un mensajero en cada entrega, para cumplir con varias entregas y reducir los tiempos de espera entre ellas, lo que generará eficiencias en toda la distribución de la ruta logística, con el fin de evitar incumplimientos con los socios logísticos y no generar reclamos, así como evitar la insatisfacción de los clientes con los servicios ofrecidos  Last-mile merchandise deliveries often experience delays, that can damage products. For this reason, this research proceeded to analyze the routes of drugs delivery, which must remain in a cold chain, in a courier company. It was analyzed the delivery process, using a discrete event simulation model in Arena software. This study aims to propose improvements in the delivery process in the last mile. It begins with the search for relevant information in the internet databases, in which the improvement of deliveries in the logistics distribution process was considered. It executes with a quantitative methodological approach, which is structured in four stages: 1. Observation. 2. Collection of information. 3. Analysis and construction of the simulated model. 4. Proposal for improvement. When developing the model, a delay in delivery could be identified, as all couriers follow a single route. Therefore, it was proposed to leave a courier at each of the delivery locations. To comply with several deliveries and reduce waiting times between them, which will generate efficiencies throughout the distribution of the logistics route, to avoid non-compliance with logistics partners and not generate complaints, as well as avoid the dissatisfaction of the customer with the services offered. &nbsp

Desarrollo de un software para la evaluación de competencias de los estudiantes del programa de Ingeniería de Sistemas de la Corporación Universitaria Minuto de Dios Centro Regional Girardot

Desarrollar un software que permita la evaluación de competencias en estudiantes de Ingeniería de Sistemas de la Corporación Universitaria Minuto de Dios Centro regional Girardot.Este proyecto es realizado con la finalidad de brindar un acompañamiento a los estudiantes de Ingeniería en sistemas de la UNIMINUTO Centro Regional Girardot, teniendo en cuenta las competencias cursadas en cada periodo académico, para de esta manera poder identificar si se presentan falencias a la hora de enfrentarse a la vida laboral en el tema de entrevistas, presentación personal, presentación de hoja de vida, el léxico que se debe manejar a la hora de expresarse en diferentes tipos de ambientes y entornos laborales, en cuanto a los alumnos se enfoca en el acompañamiento por parte de los docentes a cargo resolviendo cualquier tipo de duda que se pueda llegar a tener, de esta misma manera poder fortalecer competencias que se requieran según los resultados. De acuerdo a la problemática, se decidió resolver mediante la implementación de un desarrollo web que permite afianzar conocimientos y la adquisición de nuevos, dando de esta manera solución a dicha problemática. Para concluir se realizó una prueba piloto de forma muestral, analizando las evidencias estadísticas de los resultados generados de manera exitosa por medio del desarrollo realizado, brindando tanto bienestar para todos los alumnos del programa de Ingeniería en sistemas de la UNIMINUTO Centro Regional Girardot, demostrando y aportando los conocimientos adquiridos y afianzados en el transcurso de nuestra etapa academia como Tecnólogos en Informática y de igual manera contribuyendo con el compromiso de mejorar la calidad día a día del servicio que brinda la Universidad UNIMINUTO con sus alumnos.The project is carried out with the purpose of providing support to engineering students in systems of the UNIMINUTO Girardot Regional Center, taking into account the competences in their academic course, in this way to identify if there are flaws when facing to the work life in the subject of interviews, personal presentation, presentation of curriculum vitae, the lexicon that should be handled when expressing oneself in different types of environments and working environments. Regarding the students, it focuses on the accompaniment by part of the teachers in charge resolving any type of doubt that can be had, in this same way to strengthen competencies that are required according to the results. According to the problem, it was decided to solve by implementing a web development that allows to consolidate knowledge and the acquisition of new ones, thus providing a solution to said problem. To conclude, a pilot test was carried out in a sample way, analyzing the statistical evidences of the results generated in a successful way through the development carried out, providing so much welfare for all the students of the Systems Engineering program of the UNIMINUTO Girardot Regional Center, demonstrating and contributing the knowledge acquired and strengthened in the course of our academic stage as IT Technologists and also contributing with the commitment to improve the day-to-day quality of the service offered by UNIMINUTO University with its students

Designing bioactive porous titanium interfaces to balance mechanical properties and in vitro cells behavior towards increased osseointegration

Titanium implant failures are mainly related to stress shielding phenomenon and the poor cell interaction with host bone tissue. The development of bioactive and biomimetic Ti scaffolds for bone regeneration remains a challenge which needs the design of Ti implants with enhanced osseointegration. In this context, 4 types of titanium samples were fabricated using conventional powder metallurgy, fully dense, dense etched, porous Ti, and porous etched Ti. Porous samples were manufactured by space holder technique, using ammonium bicarbonate particles as spacer in three different ranges of particle size (100–200 μm, 250–355 μm and 355–500 μm). Substrates were chemically etched by immersion in fluorhydric acid at different times (125 and 625 s) and subsequently, were characterized from a micro-structural, topographical and mechanical point of view. Etched surfaces showed an additional roughness preferentially located inside pores. In vitro tests showed that all substrates were biocompatible (80% of cell viability), confirming cell adhesion of premioblastic cells. Similarly, osteoblast showed similar cell proliferation rates at 4 days, however, higher cell metabolic activity was observed in fully dense and dense etched surfaces at 7 days. In contrast, a significant increase of alkaline phosphatase enzyme expression was observed in porous and porous etched samples compared to control surfaces (dense and dense etched), noticing the suitable surface modification parameters (porosity and roughness) to improve cell differentiation. Furthermore, the presence of pores and rough surfaces of porous Ti substrates remarkably decreased macrophage activation reducing the M1 phenotype polarization as well M1 cell marker expression. Thus, a successful surface modification of porous Ti scaffolds has been performed towards a reduction on stress shielding phenomenon and enhancement of bone osseointegration, achieving a biomechanical and biofunctional equilibrium.Ministry of Economy and Competitiveness of Spain grant MAT2015-71284-PJunta de Andalucía – FEDER (Spain) Project Ref. P12-TEP-140

Desarrollo de un software para la evaluación de competencias de los estudiantes del programa de Ingeniería de Sistemas de la Corporación Universitaria Minuto de Dios Centro Regional Girardot

Desarrollar un software que permita la evaluación de competencias en estudiantes de Ingeniería de Sistemas de la Corporación Universitaria Minuto de Dios Centro regional Girardot.Este proyecto es realizado con la finalidad de brindar un acompañamiento a los estudiantes de Ingeniería en sistemas de la UNIMINUTO Centro Regional Girardot, teniendo en cuenta las competencias cursadas en cada periodo académico, para de esta manera poder identificar si se presentan falencias a la hora de enfrentarse a la vida laboral en el tema de entrevistas, presentación personal, presentación de hoja de vida, el léxico que se debe manejar a la hora de expresarse en diferentes tipos de ambientes y entornos laborales, en cuanto a los alumnos se enfoca en el acompañamiento por parte de los docentes a cargo resolviendo cualquier tipo de duda que se pueda llegar a tener, de esta misma manera poder fortalecer competencias que se requieran según los resultados. De acuerdo a la problemática, se decidió resolver mediante la implementación de un desarrollo web que permite afianzar conocimientos y la adquisición de nuevos, dando de esta manera solución a dicha problemática. Para concluir se realizó una prueba piloto de forma muestral, analizando las evidencias estadísticas de los resultados generados de manera exitosa por medio del desarrollo realizado, brindando tanto bienestar para todos los alumnos del programa de Ingeniería en sistemas de la UNIMINUTO Centro Regional Girardot, demostrando y aportando los conocimientos adquiridos y afianzados en el transcurso de nuestra etapa academia como Tecnólogos en Informática y de igual manera contribuyendo con el compromiso de mejorar la calidad día a día del servicio que brinda la Universidad UNIMINUTO con sus alumnos.The project is carried out with the purpose of providing support to engineering students in systems of the UNIMINUTO Girardot Regional Center, taking into account the competences in their academic course, in this way to identify if there are flaws when facing to the work life in the subject of interviews, personal presentation, presentation of curriculum vitae, the lexicon that should be handled when expressing oneself in different types of environments and working environments. Regarding the students, it focuses on the accompaniment by part of the teachers in charge resolving any type of doubt that can be had, in this same way to strengthen competencies that are required according to the results. According to the problem, it was decided to solve by implementing a web development that allows to consolidate knowledge and the acquisition of new ones, thus providing a solution to said problem. To conclude, a pilot test was carried out in a sample way, analyzing the statistical evidences of the results generated in a successful way through the development carried out, providing so much welfare for all the students of the Systems Engineering program of the UNIMINUTO Girardot Regional Center, demonstrating and contributing the knowledge acquired and strengthened in the course of our academic stage as IT Technologists and also contributing with the commitment to improve the day-to-day quality of the service offered by UNIMINUTO University with its students

Directed Irradiation Synthesis as an Advanced Plasma Technology for Surface Modification to Activate Porous and “as-received” Titanium Surfaces

For the design of smart titanium implants, it is essential to balance the surface properties without any detrimental effect on the bulk properties of the material. Therefore, in this study, an irradiation-driven surface modification called directed irradiation synthesis (DIS) has been developed to nanopattern porousand“as-received”c.p. Tisur faces with the aim of improving cellular viability. Nano features were developed using singly-charged argon ions at 0.5 and 1.0 keV energies, incident angles from 0◦ to 75◦ degrees, and fluences up to 5.0×1017 cm−2. Irradiated surfaces were evaluated by scanning electron microscopy, atomic force microscopy and contact angle, observing an increased hydrophilicity (a contact angle reduction of 73.4% and 49.3%) and a higher roughness on both surfaces except for higher incident angles, which showed the smoothest surface. In-vitro studies demonstrated the biocompatibility of directed irradiation synthesis (DIS) reaching 84% and 87% cell viability levels at 1 and 7 days respectively, and a lower percentage of damaged DNA in tail compared to the control c.p. Ti. All these results confirm the potential of the DIS technique to modify complex surfaces at the nanoscale level promoting their biological performance.Department of Defense (Spain) contract W81XWH-11-2-0067Ministry of Economy and Competitiveness of Spain grant MAT2015-71284-

Ergodic encoding for single-element ultrasound imaging in vivo

Conventional ultrasound imaging relies on the computation of geometric time delay from multiple sensors to detect the position of a scatterer. In this paper, we present Ergodic Relay Ultrasound Imaging (ERUI), a method that utilizes an ergodic cavity down to a single ultrasonic sensor for ultrasound imaging. With the proposed method, the ergodic cavity creates a unique temporal signature that encodes the position of a scatterer. When compared to standard approaches, ERUI enables the generation of images of comparable quality while utilizing fewer detector elements. Our results suggest that ERUI has the potential to achieve image resolution similar to that of traditional imaging techniques, shifting the complexity from hardware to sofware. The demonstrated feasibility offers a promising path towards ultrasound probes with reduced costs and complexity for more portable scanning devices.Comment: 5 pages, 4 figures, Lette

Organisational factors in the implementation of educational modules at schools in Barranquilla (Colombia)

Job design affects motivational aspects and working conditions and, consequently, impacts the process of implementing programmes. This study examines the influence of the organisational context on the implementation of a psycho-educational programme and an academic levelling module at Colombian schools. Specifically, we evaluate the work design characteristics of teachers and their impact on the fidelity, effectiveness, and sustainability of the intervention. Information was collected from 102 teachers who acted as facilitators in the implementation of these interventions at a total of 72 schools in the city of Barranquilla. With a work design questionnaire, the characteristics of the task and working conditions of the teaching staff were analysed. To evaluate the implementation of the programme, indicators of fidelity, dose, frequency, and perceived effectiveness of the intervention were obtained. The results show that the autonomy and intrinsic characteristics of the task are positively related to the fidelity of the implementation. A certain influence of the working conditions of the teaching staff was also observed in the dose of the educational activities performed. Complementary to this, we describe the impact of confinement during the coronavirus pandemic on the implementation of programmes. Work design influences the process of implementing programmes in educational contexts. Both active hierarchical supervision and the motivational characteristics of teachers’ work affect the sustainability of interventions, especially in crisis circumstances. To conclude, we reflect on the organisational characteristics that facilitate the sustainability of the interventions

A system to support the learning of movement qualities in dance: A case study on dynamic symmetry

In this paper, we present (i) a computational model of Dynamic Symmetry of human movement, and (ii) a system to teach this movement quality (symmetry or asymmetry) by means of an interactive sonification exergame based on IMU sensors and the EyesWeb XMI software platform. The implemented system is available as a demo at the workshop