Participation in local school networks to promote educational improvement, a case study

La participación de los centros en redes escolares para impulsar y consolidar la mejora y la innovación, promoviendo el trabajo colaborativo entre el profesorado, tiene la finalidad de trabajar con compromiso y cooperación entre profesionales. Este estudio de caso tiene como objetivo analizar las aportaciones que realiza la participación de 9 centros de una misma localidad en una red escolar, constituida, principalmente, para para que el profesorado trabaje de forma conjunta en el planteamiento de propuestas escolares que faciliten el tránsito del alumnado del nivel de primaria al de secundaria. La recogida de datos se ha basado en una metodología participativa y colaborativa que combina instrumentos de recogida de datos, entrevistas tanto individuales como en grupos focales a asesores de estos centros educativos de la zona y al coordinador de la red y cuestionarios abiertos individuales a asesores, directores de centros y profesorado participante. Respecto a las conclusiones, destacamos que la participación en redes escolares ha favorecido la construcción de una nueva configuración organizativa intercentros e incluso en el propio centro, la adjudicación de responsabilidades, experiencias en colaboración, acuerdo de estrategias de trabajo entre los centros, así como una reflexión sobre su funcionamiento basado en los principios de cooperación y compromiso entre todos.The participation of schools in school networks to promote and consolidate improvement and innovation, promoting collaborative work among teachers, aims to work with commitment and cooperation among professionals. This case study aims to analyze the contributions made by the participation of 9 centers of the same locality in a school network, constituted, mainly, so that teachers work together in the proposal of school proposals that facilitate the transit of the school. students from primary to secondary level. The collection of data has been based on a participatory and collaborative methodology that combines data collection instruments, interviews both individual and in focus groups with advisors of these educational centers in the area and the coordinator of the network and individual open questionnaires to advisors, directors of centers and participating teacher. Regarding the conclusions, we emphasize that participation in school networks has favored the construction of a new organizational configuration intercentros and even in the center itself, the allocation of responsibilities, experiences in collaboration, agreement of work strategies between the centers, as well as a reflection on its operation based on the principles of cooperation and commitment among all

El trabajo colaborativo en red impulsor del desarrollo profesional del profesorado

En este artículo se presenta un estudio de caso sobre una estrategia de aprendizaje colaborativo entre profesionales de la educación en un ámbito específico de trabajo, el alumnado con autismo, para apoyar el intercambio de experiencias a través de las redes. La muestra se compone de un equipo de 11 profesoras de aulas de autismo específicas, cuyo trabajo se basa en diseñar y contrastar estrategias educativas de actuación para este alumnado. La recogida de datos se ha realizado a través de entrevistas en grupo, cuestionarios y análisis del Plan de Trabajo. Los resultados indican que el trabajo planificado y consensuado, con una trayectoria común de participación continuada en el tiempo, ofrece una garantía de calidad que camina hacia la mejora en educación. Así, el grupo de trabajo ofrece seguridad profesional a sus participantes, favorece la consecución de objetivos comunes y evita el aisla ‑ miento profesional de los profesores en aulas específicas, ya que la comunicación en la red es la base de su trabajo

Reproducibility of fluorescent expression from engineered biological constructs in E. coli

We present results of the first large-scale interlaboratory study carried out in synthetic biology, as part of the 2014 and 2015 International Genetically Engineered Machine (iGEM) competitions. Participants at 88 institutions around the world measured fluorescence from three engineered constitutive constructs in E. coli. Few participants were able to measure absolute fluorescence, so data was analyzed in terms of ratios. Precision was strongly related to fluorescent strength, ranging from 1.54-fold standard deviation for the ratio between strong promoters to 5.75-fold for the ratio between the strongest and weakest promoter, and while host strain did not affect expression ratios, choice of instrument did. This result shows that high quantitative precision and reproducibility of results is possible, while at the same time indicating areas needing improved laboratory practices.Peer reviewe

Constraining the magnitude of the Chiral Magnetic Effect with Event Shape Engineering in Pb-Pb collisions at sNN\sqrt{s_{\rm NN}} = 2.76$ TeV

In ultrarelativistic heavy-ion collisions, the event-by-event variation of the elliptic flow $v_2$ reflects fluctuations in the shape of the initial state of the system. This allows to select events with the same centrality but different initial geometry. This selection technique, Event Shape Engineering, has been used in the analysis of charge-dependent two- and three-particle correlations in Pb-Pb collisions at $\sqrt{s_{_{\rm NN}}} =2.76$ TeV. The two-particle correlator $\langle \cos(\varphi_\alpha - \varphi_\beta) \rangle$, calculated for different combinations of charges $\alpha$ and $\beta$, is almost independent of $v_2$ (for a given centrality), while the three-particle correlator $\langle \cos(\varphi_\alpha + \varphi_\beta - 2\Psi_2) \rangle$ scales almost linearly both with the event $v_2$ and charged-particle pseudorapidity density. The charge dependence of the three-particle correlator is often interpreted as evidence for the Chiral Magnetic Effect (CME), a parity violating effect of the strong interaction. However, its measured dependence on $v_2$ points to a large non-CME contribution to the correlator. Comparing the results with Monte Carlo calculations including a magnetic field due to the spectators, the upper limit of the CME signal contribution to the three-particle correlator in the 10-50% centrality interval is found to be 26-33% at 95% confidence level

Constraining the magnitude of the chiral magnetic effect with event shape engineering in Pb–Pb collisions at √sNN=2.76 TeV

In ultrarelativistic heavy-ion collisions, the event-by-event variation of the elliptic flow v2 reflects fluctuations in the shape of the initial state of the system. This allows to select events with the same centrality but different initial geometry. This selection technique, Event Shape Engineering, has been used in the analysis of charge-dependent two- and three-particle correlations in Pb–Pb collisions at √sNN=2.76 TeV. The two-particle correlator 〈cos⁡(φα−φβ)〉, calculated for different combinations of charges α and β, is almost independent of v2 (for a given centrality), while the three-particle correlator 〈cos⁡(φα+φβ−2Ψ2)〉 scales almost linearly both with the event v2 and charged-particle pseudorapidity density. The charge dependence of the three-particle correlator is often interpreted as evidence for the Chiral Magnetic Effect (CME), a parity violating effect of the strong interaction. However, its measured dependence on v2 points to a large non-CME contribution to the correlator. Comparing the results with Monte Carlo calculations including a magnetic field due to the spectators, the upper limit of the CME signal contribution to the three-particle correlator in the 10–50% centrality interval is found to be 26–33% at 95% confidence level