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El desarrollo del artículo hace una referencia cronológica del estado de las teorías de la educación y como éstas se han ido desarrollando través de la práctica didáctica pedagógica y como siguen predominado en algunos enfoques educativos, se aborda la educación y su relación con la gestión educativa a nivel de educación superior, las principales tendencias de la esencia e innovación curricular y de la educación, su impacto en el desarrollo para las Educación Superior en Centroamérica, la innovación y desarrollo curricular como una práctica de tecnología educativa. La calidad educativa, debe actualmente centrarse por supuesto en una visión y práctica de innovación y desarrollo curricular a nivel de una educación superior más inclusiva, lo cual deriva de un modelo de gestión y desarrollo institucional de las instituciones para impartir los diferentes programas y carreras en el nivel de educación superior, esto conllevará a generar ranking en calidad educativa y, por supuesto, esto impactará como indicador de desarrollo para cada uno de las carreras y programas educativos, que lleven la excelencia como práctica en la formación de los estudiantes, y puedan también insertarse a los programas de internacionalización de la educación.

Objectives Pure erythroid leukemia (PEL) is exceptionally rare in the pediatric setting. Four pediatric PEL cases with t(1;16)(p31;q24) NFIA-CBFA2T3 were reported previously. We present a case of an infant with PEL presenting with erythroblastic sarcoma and harboring a novel t(1;8)(p31.3;q21.3) NFIA-RUNX1T1 fusion detected by RNA sequencing and conventional karyotype. Methods Bone marrow (BM) and abdominal mass biopsies from the patient were evaluated with extensive immunohistochemical, flow cytometric, cytogenetic, and molecular studies. Results The patient was a female infant who presented between 2 and 5 months of age with cytopenias and an enlarging abdominal mass. Blasts in the BM and abdominal mass expressed CD71 and CD117 with focal expression of CD43, E-cadherin, epithelial membrane antigen, and hemoglobin A. They were negative for additional myeloid, lymphoid, and nonhematolymphoid markers. These findings were most consistent with PEL and erythroblastic sarcoma. RNA sequencing revealed the novel NFIA-RUNX1T1 fusion. Conclusions Along with the previously reported PELs with NFIA-CBFA2T3 fusions, we describe a subset of PELs that occur in children, that frequently display extramedullary disease, and that harbor rearrangements of NFIA with core binding factor genes. We hypothesize that, together, these cases represent a rare but distinct clinicopathologic group of pediatric PELs with recurrent genetic abnormality.

RESUMEN: Esta investigación indaga por el aporte de la infografía digital periodística a la prensa escolar. Se realizó a través de revisión bibliográfica y entrevistas semiestructuradas con infógrafos de tres medios periodísticos, docentes y estudiantes de grados 8º y 9º de bachillerato en tres colegios en Medellín, Colombia. El estudio reflejó que la infografía periodística es propicia para ser usada en la prensa escolar porque tiene características que promueven el aprendizaje, especialmente para las nuevas generaciones; además, se encontró que los equipos de infografía reconocen avances y retos en producción, gestión y publicación de contenidos, y que en los colegios existe la necesidad de actualizar la prensa escolar a través de las TIC, para lograr mayor impacto educativo. En este sentido, la infografía periodística es un recurso adecuado como herramienta digital, que facilita la apropiación social del conocimiento, gracias a las plataformas virtuales que pueden ser aprovechadas por la escuela. ABSTRACT: This research inquiries into the contribution of digital newspaper infographics to the school press. It was carried out through bibliographic review and semi-structured interviews with infographic designers of three journalistic media, and teachers and of 8th and 9th grade students in three high schools in Medellín, Colombia. The study showed that journalistic infographic is favorable to be used in the school press because of its characteristics that promote learning especially for the new generations. In addition, it was found that infographic teams recognize advances and challenges in content production, management and publication and that there is a need to update the school press through ICTs to achieve greater educational impact. In this sense, journalistic infographics are a suitable resource as a digital tool that facilitates the social appropriation of knowledge thanks to the virtual platforms that can be used by the school. TESIS CON DISTINCIÓN: Cum Laude (Meritoria) *Título extenso: La Infografía Digital Interactiva, en tanto recurso periodístico, como apoyo al proceso educativo para la producción y divulgación de contenidos en la prensa escolar, en dos instituciones oficiales y una privada en Medellín entre 2016 y 2017: instituciones educativas Alfonso Upegüi Orozco e INEM José Félix de Restrepo (Oficiales) y Colegio Salesiano El Sufragio (Privado). Sitio que acompaña al artículo: https://2017informagrafia.wixsite.com/udea

International audience; L’objectif de cette recherche fut d’étudier l’impact du déclassement subi par une jeune femme titulaire d’un Bac + 5 sur sa dynamique identitaire. Nous avons mené une recherche exploratoire au moyen de l’IMIS (Zavalloni, 2007). Également basée sur la dynamique capacitaire (Costalat-Founeau, 2008, 2014), cette étude a mis en évidence une dynamique identitaire marquée par les difficultés rencontrées dans le processus d’insertion professionnelle. L’analyse du discours a également permis de révéler un sentiment capacitaire agissant à la fois comme une défense face à une capacité normative faisant défaut par une non-validation sociale, mais aussi comme une compensation à un manque de reconnaissance professionnelle.

Running water available for human consumption inside Quito Metropolitan District began to be deficient by year 1960 due to an increase of its population. This water shortage caused several annoyances to its inhabitants up to the point that local government started on year 1990 new measures for a more effective management of its water resources. In 1992, ordinance 2910 ruled for the prevention and control of pollution produced by industrial liquid discharges and emissions into the atmosphere. Contaminating sources were manufacture of fabrics, metal products, food, beverages and tobacco with low biodegradability and high toxicity inorganic inputs and wastewater of Northern Quito majorly caused contamination of Monjas River. This research describes current water situation and proposes different alternatives of treatment plants based in a pervasive information systems.

Water reuse is a necessary process because water is excessively used and increasingly it is becoming scarcer. Water after being used by industry and domestic use and once treated, it can be applied to recharge aquifers, discharge into receiving bodies without contaminating them or being reused mainly in green areas and/or agriculture. Its reuse could be possible after a treatment, which aims to eliminate as many pollutants as may be otherwise harmful. This research describes the cur-rent situation of a wastewater treatment plant in at San Jose de Chaltura parish of canton Antonio Ante located in the province of Imbabura in Ecuador; and a process that was formulated to the treatment and decontamination of water through a system of pervasive monitoring. Experimentation was carried out by treating the wastewater by triplicate for 15 days, using biological reactors and combinations of aquatic plants. In general, results show the best aquatic species to raise quality of treated wastewater in agricultural use as irrigation water was duckweed since it managed to decrease its initial value for total coliforms and fecal coliforms.

Sunlight to electricity efficiencies of Parabolic Trough Collector (PTC) plants are typically on the order of 15%, while commercial solar Photovoltaic (PV) technologies routinely achieve efficiencies of greater than 20%, albeit with much higher conversion efficiencies of photons at the band gap. Hybridizing concentrating solar power and photovoltaic technologies can lead to higher aggregate efficiencies due to the matching of photons to the appropriate converter based on wavelength. This can be accomplished through spectral filtering whereby photons unusable or poorly utilitized by PV (IR and UV) are passed through to a heat collection element, while useful photons (VIS) are reflected onto a concentrating PV (CPV) receiver. The mechanical design and experimental validation of spectral splitting optics is described in conjunction with system level modeling and economic analysis. The implications of this architecture include higher efficiency, lower cost hybrid CSP-PV power systems, as well as the potential to retrofit existing PTC plants to boost their output by ~ 10% at a projected investment cost of less than $1 per additional net Watt and an IRR of 18%, while preserving the dispatchability of the CSP plant’s thermal energy storage.

Frente a la configuracion de una poetica de la Ciencia Ficcion es necesario abordar algunas de las teorias esenciales de la Filosofia Analitica Contemporanea, que corresponden al analisis del espacio literario conformado dentro del marco literario de la ciencia ficcion, relacion que se establece para argumentar la existencia de una poetica dentro del genero mencionado, en particular con la obra Fabulas de robots, de Stanislaw Lem2. Lo anterior, permite generar vision critica frente al objeto de estudio, a saber la literatura de C.F3, marginada del corpus literario canonico, al considerarla literatura baladi y no literatura esencial, que contiene una propuesta estetico poetica, donde el lector se sumerge en la experiencia del habitar poetico, concepto teorico clave en Heidegger, que sera sustentado en paginas posteriores. Ahora bien, para el desarrollo de esta propuesta teorica es necesario establecer un dialogo con los discursos filosoficos, que demarcan el horizonte interpretativo de la filosofia dentro de la C.F.

This study presents an experimental exploration of flow boiling heat transfer in a spiraling radial inflow microchannel heat sink. The effect of surface wettability, fluid subcooling levels, and mass fluxes are considered in this type of heat sink for use in applications with high fluxes up to 300 W/cm2. The design of the heat sink provides an inward radial swirl flow between parallel, coaxial disks that form a microchannel of 300 μm and 1 cm radius with a single inlet and a single outlet. The channel is heated on one side through a copper conducting surface, while the opposite side is essentially adiabatic to simulate a heat sink scenario for electronics cooling. Flow boiling heat transfer and pressure drop data were obtained for this heat sink device using water at near atmospheric pressure as the working fluid for inlet subcooling levels from 20 to 81°C and mean mass flux levels ranging from 184 to 716 kg/m2s. To explore the effects of varying surface wetting, experiments were conducted with two different heated surfaces. One was a clean, machined copper surface with water equilibrium contact angles in the range of 14–40°, typical of common metal surfaces. The other was a surface coated with zinc oxide nanostructures that are superhydrophilic with equilibrium contact angles measured below 10°. During boiling, increased wettability resulted in quicker rewetting and smaller bubble departure diameter as indicated by reduced temperature oscillations during boiling and achieving higher maximum heat flux without dryout. Reducing inlet subcooling levels was also found to reduce the magnitude of oscillations in the oscillatory boiling regime. The highest heat transfer coefficients were seen in fully developed boiling with low subcooling levels as a result of heat transfer being dominated by nucleate boiling. The highest heat fluxes achieved were during partial subcooled flow boiling at 300 W/cm2 with an average surface temperature of 134 °C and requiring a pumping power to heat rate ratio of 0.01%. The hydrophilic surface retained wettability after a series of boiling tests. Recommendations for use of this heat sink design in high flux applications is also discussed.Copyright © 2015 by ASME

Resumen Este artículo es el producto de una revisión teórica del constructo competencias laborales en la literatura actual, como antesala a un proceso investigativo que se desarrolla en la Universidad del Norte con los egresados del Programa de Psicología en el marco del Proyecto de Modernización Curricular. Organizar una investigación en torno al concepto de competencias requiere alcanzar una claridad y unificación teórica respecto a éste, cometido que se emprende construyendo un marco conceptual que dé cuenta de la profusión de definiciones que existen en la actualidad y realizando un análisis. Con la revisión de la noción de competencias se concluye que, aunque no existe una clara definición o consenso sobre lo que significa este concepto, en las distintas acepciones, se hace referencia a un saber, saber hacer y saber ser en un contexto determinado. Abstract This article is the product of a theoretical revision about labor competitions in the current literature, previous to an investigative process that is developed in the Universidad del Norte with Psychology Department graduated students in the scope of the Curricular Modernization Project. To organize an investigation around the competitions concept requires reaching a clarity and theoretical unification in this way, which is undertaken by the building of a conceptual scheme. This scheme takes into account the profusion in the concept definitions existed at the present time and carries out an analysis of the same ones. With the revision of the competitions notion it can be concluded that, although it doesn’t exist a clear definition or consent on what means this concept, in the different meanings it is referred to a knowledge, to a know how to do and to know how to be in a certain context.

This paper presents a model for analysis of heat and momentum transport in a novel spiraling radial inflow heat sink. The design provides uniform heat removal at high heat flux rates making this design attractive for electronics cooling applications or for heat removal from concentrating solar photovoltaic systems. The design consists of swirling flow in a microchannel between two concentric disk surfaces with flow accelerating inwards and then exiting at the center. The geometry of the flow path can further be varied to increase heat transfer and allow for greater surface temperature control. The governing flow and energy equations are solved using the integral method to achieve solutions for both the constant wall heat flux and constant wall temperature conditions. The model is used to explore the parametric effects of inlet flow and passage geometry, including constant and varying channel sizes. Case studies are examined for liquid water as the working fluid rejecting heat fluxes up to 100 W/cm2 while keeping surfaces below 80 °C.Copyright © 2012 by ASME

Resumen Este artículo contiene los resultados de la investigación Relación existente entre las familias con violencia conyugal y el autoconcepto del menor entre 5 y 6 años de edad. La familia es la institución intermedia entre el hombre y la sociedad, representa la mayor influencia educadora para el niño y está determinada por las condiciones del contexto sociocultural. En Colombia el índice de violencia se ha generalizado a todos los espacios de la sociedad, siendo la familia la más vulnerada, lo cual afecta el desarrollo de la 1 personalidad de los niños. El diseño utilizado para la investigación fue descriptivo-comparativo; la muestra la conformaron 23familiaseonsultantes de la Comisaría Segunda de Familia. Se aplicó la escala de autopercepción PAI a los niños y a los padres una entrevista encaminada a conocer las condiciones socioculturales y su relación con los niños. Como conclusión encontramos que la valoración del autoconcepto en todas las áreas en niños y niñas cuyos padres presentaban violencia conyugal, estaba desarrollada de manera positiva y no existía diferencia significativa entre los dos sexos. Por lo tanto, a pesar de que en una familia existan niveles elevados de violencia, no necesariamente éstos pueden incidir negativamente en el desarrollo del autoconcepto, siempre y cuando el niño no sea victoria de dicha agresión y haya presentado un desarrollo físico y psicoafectivo normal. Abstract The family is an intermediary between man and society. It represents the major educating influence for children and it is determined by the socialcultural context conditions. The violence rate in Colombia has spread to al1the spaces in society, and the family has been the most injured with the consequence of affecting the deve10pment of children personality. Our aim is 10 investigate the existing relationship between families with marital violence and the self-concept deve10pment of 5-6 year old children belonging to low social-economical level. A descriptive-comparative design was used. The sample consists of 23 families consulting the Comisaría Segunda de Familia. Children were applied the PAl se1f-pereeption scale, and parents were interviewed in order to know the social-cultural conditions and their relation with the children. As a conclusion, we found out that the self-concept valuation in al1 areas was positive1y rated by either boys and girls coming from families presenting marital violence. So, the existence of high levels of violence in a family not necessarily implies a negative incidence in the development of self-concept, as long as the child is not the victim of such aggression and his/her physical and psycho-affective development has been normal.

The energy conversion effectiveness of the central receiver absorber in concentrating solar thermal power systems is dictated primarily by heat losses, material temperature limits, and pumping power losses. To deliver concentrated solar energy to a gas for process heat applications or gas cycle power generation, there are a wide variety of compact heat exchanger finned surfaces that could be used to enhance the convective transfer of absorbed solar energy to the gas stream flowing through the absorber. In such circumstances, a key design objective for the absorber is to maximize the heat transfer thermodynamic performance while minimizing the pumping power necessary to drive the gas flow through the fin matrix. This paper explores the use of different performance metrics to quantify the combined heat transfer, thermodynamic and pressure loss effectiveness of enhanced fins surfaces used in solar thermal absorbers for gas heating. Previously defined heat exchanger performance metrics, such as the “goodness factor”, are considered, and we develop and explore the use of a new metric, the “loss factor”, for determining the preferred enhanced fin matrix surfaces for concentrated solar absorbers. The loss factor, defined as the normalized exergy loss in the receiver, can be used for nondimensional analysis of the desirable qualities in an optimized solar receiver design. In comparison to previous goodness factor methods, the loss factor metric has the advantage that it quantifies the trade-off between trying to maximize the solar exergy transferred to the gas (high heat transfer rate and delivery at high temperature) and minimizing the pumping exergy loss. In this study, the loss factor is used to compare current solar receiver designs, and designs that use a variety of available plate-finned compact heat transfer surfaces with known Colburn factor (j) and friction factor (f) characteristics. These examples demonstrate how the loss factor metric can be used to design and optimize novel solar central receiver systems, and they indicate fin matrix surfaces that are particularly attractive for this type of application.Copyright © 2011 by ASME

Resumen En el presente artículo se muestran los resultados de una investigación realizada para determinar las competencias laborales exigidas a los Psicólogos en el medio laboral actual. Participaron 60 egresados quienes a través de un cuestionario (Ruiz, Jaraba & Romero, 2005) dieron cuenta de los conocimientos, habilidades y actitudes que se le demandan a los profesionales del área de la Psicología. En términos generales según los datos encontrados, la formación de los psicólogos basada en competencias, implica el conocimiento de principios psicológicos fundamentales y herramientas tecnológicas, habilidades obligatorias que facilitan el trabajo en las condiciones actuales, así como solucionar problemas, tener iniciativa, etc., y ciertas actitudes que muestren la calidad humana y ética del profesional. Abstract This article shows the results of a research to determine the work competences required for the psychologist in the modern world. In this research 60 alumni students participated. A questionnaire (Ruiz, Jaraba y Romero, 2005) was used to show the knowledge, skills and attitudes needed by psychologists. In general, according to data found, the training of psychologists based on competences implies knowledge of important psychological principles and technological tools, obligatory skills that facilitate the job in the actual conditions, thus like how to solve problems, to have initiative, etc., and some attitudes that show the professional ethic and human qualities