3,348 research outputs found
Innovation and Change in Jesuit Education: Horizon 2020, a Case Study in the Jesuit School Network in Catalonia, Spain
Innovation has taken place in education as a necessity to respond to a rapidly
changing world. In their commitment to contribute to the creative and healing mission of the
Society of Jesus, the Jesuit School Network of Catalonia created HORIZON 2020 to
envision a new school to effectively educate in the 21st Century and adapt the Ignatian
tradition to the present day.
Understanding the case and extracting the main lessons from it were best
accomplished by using a qualitative research approach. Particularly, this study used
descriptive single-case design with embedded units. The project Horizon 2020 of the
Jesuit Education Foundation was the bounded case chosen by its exemplarity in Jesuit
education. Data was extracted from four different sources -interviews (individual and
focus groups), arcHIVal records, direct observations and documents- and was analyzed in
a narrative, interpretive and meaning making level.
Four themes emerged from the analysis as important pieces of the transformation:
communication, culture of care (cura personalis), decision-making, and participation. Each
theme is described from different perspectives and forces that drove the change and
mobilized people to promote or oppose it. The power dynamics that coexisted within the
organization were an important finding that explained the tensions within the emerging
themes.
This empirical research analyzes how adaptive leadership takes place in school
settings through multifaceted lenses enriched by theories of innovation, design thinking in
education and the characteristics of Jesuit Education. Its results can be used by those
interested in leadership and educational transformation. This study offers insights for
practitioners in school administration and advances the systematic knowledge in
leadership
Nonlocal Schrödinger equations in metric measure spaces
In this note we consider the pointwise convergence to the initial data for the solutions of some nonlocal dyadic Schrödinger equations on spaces of homogeneous type. We prove the a.e. convergence when the initial data belongs to a dyadic version of an L2 based Besov space.Fil: Actis, Marcelo Jesús. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Matemática Aplicada del Litoral. Universidad Nacional del Litoral. Instituto de Matemática Aplicada del Litoral; ArgentinaFil: Aimar, Hugo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Matemática Aplicada del Litoral. Universidad Nacional del Litoral. Instituto de Matemática Aplicada del Litoral; ArgentinaFil: Bongioanni, Bruno. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Matemática Aplicada del Litoral. Universidad Nacional del Litoral. Instituto de Matemática Aplicada del Litoral; ArgentinaFil: Gomez, Ivana Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Matemática Aplicada del Litoral. Universidad Nacional del Litoral. Instituto de Matemática Aplicada del Litoral; Argentin
PVT-Robust CMOS Programmable Chaotic Oscillator: Synchronization of Two 7-Scroll Attractors
Designing chaotic oscillators using complementary metal-oxide-semiconductor (CMOS) integrated circuit technology for generating multi-scroll attractors has been a challenge. That way, we introduce a current-mode piecewise-linear (PWL) function based on CMOS cells that allow programmable generation of 2–7-scroll chaotic attractors. The mathematical model of the chaotic oscillator designed herein has four coefficients and a PWL function, which can be varied to provide a high value of the maximum Lyapunov exponent. The coefficients are implemented electronically by designing operational transconductance amplifiers that allow programmability of their transconductances. Design simulations of the chaotic oscillator are provided for the 0.35μ m CMOS technology. Post-layout and process–voltage–temperature (PVT) variation simulations demonstrate robustness of the multi-scroll chaotic attractors. Finally, we highlight the synchronization of two seven-scroll attractors in a master–slave topology by generalized Hamiltonian forms and observer approach. Simulation results show that the synchronized CMOS chaotic oscillators are robust to PVT variations and are suitable for chaotic secure communication applications.Universidad Autónoma de Tlaxcala CACyPI-UATx-2017Program to Strengthen Quality in Educational Institutions C/PFCE-2016-29MSU0013Y-07-23National Council for Science and Technology 237991 22284
Dibujantes del Museo de La Plata: Carlos Andrés Tremouilles
En esta colección de la Serie Documentos presentamos a los dibujantes y artistas que pasaron por nuestra institución, lo que representa una tarea nada fácil. Sin embargo, con las imperfecciones del caso, iniciamos este trabajo esperando que, en un futuro próximo, esta iniciativa sea continuada dentro de las diferentes Divisiones que conforman la estructura de nuestro Museo. En este primer artículo mostramos algunas de las imágenes que pudimos rescatar de Edmundo Maristany, una figura polifacética, ya que, entre sus logros se encuentra el descubrimiento de un cometa que hoy lleva su nombre y el escrito de sonetos publicados en la década del cincuenta. A través de sus dibujos de vertebrados, sabemos que trabajó para el Dr. Emiliano Mac Donagh en el Museo de La Plata y para el Dr. Carlos Marelli en el Jardín Zoológico de nuestra ciudad.Fil: López, Hugo L..Fil: Ponte Gomez, Justina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
Concrete in high-rise buildings: practical experiences in Madrid
The use of concrete in high-rise buildings has increased significantly in the last 20 years mainly owing to improvement in all of the technologies associated with this material: admixtures, pumping, transportation and elevation methods, etc. These enhanced possibilities are illustrated by means of four high-rise buildings that were built recently in Madrid, each about 250 m high. The main structural elements of these buildings are presented focusing on the advantages offered by concrete compared to other materials that are commonly used in high-rise construction. The types of concrete considered are high-resistance concrete up to C80, self-compacting concrete, precast and in situ concrete, reinforced or prestressed concrete, as well as normal weight or lightweight concrete. These examples clearly show that, even in structures where the role of self weight is determinant, concrete can be the best solution if all of the different factors involved in the success of a construction site are considered: geometry, ease of construction, means of elevation, prefabrication at factory, repetitiveness, material costs, control requirements, and so o
Variation of Modal Parameters of a Highway Bridge Extracted from Six Earthquake Records
Between 2005 and 2010 six earthquakes triggered a monitoring system consisting of 11 acceleration channels installed on the West Street On-Ramp, a three-span curved highway bridge located in the city of Anaheim, California. In this paper, three different system identification techniques are applied to the acceleration records to investigate and corroborate the dynamic properties of the bridge, that is, vibration frequencies, associated damping ratios and mode shapes. The identification techniques are applied to each one of the six seismic events. The identified frequencies and damping ratios are shown to be dependent variables of the earthquake intensity. In general, larger earthquake intensities result in reduced vibration frequencies and higher damping ratios of the bridge. Sensitivity analysis using a simple finite element model reveals that soil softening at the abutments considerably contributes to the variation in frequencies because of changes in the support conditions and ultimately in the global stiffness of the structure. In addition, mathematical models in the state space description are identified from the recorded response and excitation measurements. The state space models successfully replicate the bridge measured response to the earthquake from which it is constituted. The models also provide a reasonable prediction of the bridge response to a different earthquake
Herschel, Spitzer and Magellan infrared observations of the star-forming region RCW 121 (IRAS 17149−3916)
We present new deep near-infrared broad- and narrow-band imaging and low-resolution spec-troscopy of the star formation region RCW 121 (IRAS 17149−3916) which we analyse incombination withHerschel(70, 160, 250, 350 and 500μm) andSpitzer(3.6, 4.5, 5.8 and 8μm)images. The near-infrared photometry reveals the presence of a stellar cluster of approximatesize of 92 arcsec which is composed of at least 264 members, approximately 25 per cent ofthese showing excess emission atλ>2.0μm, indicative of circumstellar discs. Isochronescorresponding to ages 0.5–1.0 Myr andAV=7.8 fit well the position of a large fraction of likelycluster members in theKsversusH−Ksdiagram. We find three massive star-forming coreslocated in the boundaries of an expanding HIIregion ionized by a central O-type star. Fromtheir far-infrared spectral energy distributions (SEDs) we derive masses and temperatures ofthe dense cores. When these young stellar objects (YSOs) have warm emission components,the 1.2–500μm SEDs are fitted with Robitaille et al.’s star–disc-envelope model to obtain theirphysical parameters. The masses of the three YSOs are between 8 and 10 M . The youngestsite (core I) is undetected atλ<100μm and is at the earliest evolutionary stage that cancurrently be detected. The other two cores (II and III) contain YSOs of similar masses andhave near-infrared counterparts, which imply a more advanced evolutionary stage. The YSOat core II has been found to have associated a jet, with strong H2line emission, co-existingwith an H2O maser source. RCW 121 is another example of multiple star formation beingtriggered by the expansion of a single HIIregion.Fil: Tapia, M.. Universidad Nacional Autónoma de México; MéxicoFil: Persi, P.. Istituto Astrofisica e Planetologia Spaziale. Roma; ItaliaFil: Roth, Markus Albert. Las Campanas Observatory. La Serena; ChileFil: Elia, D.. Istituto Astrofisica e Planetologia Spaziale. Roma; ItaliaFil: Molinari, S.. Istituto Astrofisica e Planetologia Spaziale. Roma; ItaliaFil: Saldaño, Hugo Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; ArgentinaFil: Gomez, Mercedes Nieves. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; Argentin
Estudio de confiabilidad de una prueba para evaluar memoria de trabajo fonologica y visuoespacial en ninos entre 4 anos a 5 anos 11 meses con desarrollo tipico de la ciudad de Talca
94 p.La memoria de trabajo es el “espacio mental” necesario para el recuerdo episódico y semántico, para el pensamiento y la toma de decisión, para la comprensión del lenguaje y el cálculo mental, y en general para todas las actividades cognitivas que requieren atención y procesamiento controlado (Miyake y Shah, 1999).
Diversos estudios han demostrado que la Memoria de Trabajo se relaciona con aspectos lingüísticos, como la adquisición y comprensión de la lectura, así como también en la adquisición de nuevas palabras, por lo que se presume que un fallo en ésta capacidad afectaría de una u otra forma los distintos niveles del lenguaje.
El propósito de esta investigación es realizar un estudio de confiabilidad de una Prueba que evalué la Memoria de Trabajo Fonológica y Visuoespacial, con el fin de entregar un método de evaluación que permita reconocer alteraciones o dificultades a este nivel, lo cual no era posible hasta ahora más que con la observación clínica. Se evaluó con esta prueba a niños con desarrollo típico de entre 4 años y 5 años 11 meses de la ciudad de Talca
Innovation systems and regional resilience: a network analysis
European regions face several social and economic challenges. To overcome these challenges, each region needs to identify priority domains that promote innovation dynamics and represent competitive advantages for development and regional resilience. The innovative dynamics of a region largely depends on existing actors and their connectivity, so that the resilience of a given innovation system can be analyzed through the study of innovation networks. This article studies the case of Algarve, a peripheral region in the south of Portugal, through the use of Social Network Analysis. The results facilitate the identification of thematic groups of priorities for smart specialization and potentialities for the system improvement and suggest that the public policies must make efforts to stimulate the cooperation for the innovation, avoiding an excessive concentration of resources and the prominence of specific actors.Las regiones europeas presentan diversos retos sociales y económicos. Para superar estos desafíos
es necesario que cada región identifique dominios
prioritarios sobre los que concretar las dinámicas
de innovación y sus ventajas competitivas, en pos
del desarrollo y la resiliencia regional. Las dinámicas innovadoras de una región dependen de los
actores existentes y de su conectividad, por lo que
la resiliencia de un determinado sistema de innovación puede ser analizada a través del estudio
de las redes de innovación. Este artículo estudia
el caso de Algarve, una región periférica en el sur
de Portugal, por medio del Análisis de Redes Sociales. Los resultados identifican grupos temáticos
de prioridades para la especialización inteligente y
potencialidades para la mejora del sistema. Sugieren, además, que las políticas públicas deben hacer esfuerzos para estimular la cooperación para la
innovación, evitando la concentración excesiva de recursos y el protagonismo de actores específicosinfo:eu-repo/semantics/publishedVersio
Modal response identification of a highway bridge under traffic loads using frequency domain decomposition (FDD)
In this study, a four-span, 224m long, post-tensioned concrete box girder bridge supported on single column piers was subject to a series of controlled vehicle tests. Bridge acceleration response datasets were used to study the effect of truck speed and a sudden stop, on the modal identification of the bridge structure. Natural frequencies and mode shapes of the bridge were determined using the frequency domain decomposition technique for all datasets. The passing of the truck rendered difficult to identify the first bridge frequency. Conversely, the vehicle tests improved the identification of higher vibration modes. This is because the truck preferentially excites the bridge vertical response, which is associated with higher modes of vibrations, especially when a sudden stop of the vehicle occurs. Thus, carefully conducted vehicle-crossing tests provide detailed information about the bridge structure dynamics in the vertical direction. However, to identify lower modes, no vehicle on the bridge is preferred
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