Promoting young participation from the community

Este trabajo presenta el inicio de una experiencia socioeducativa con población joven que tiene la pretensión de potenciar su protagonismo en la comunidad, dinamizando al colectivo juvenil para que sea éste mismo quién organice y gestione su ocio y tiempo libre. La iniciativa parte de un estudio previo, la Monografía Comunitaria (Vecina, Segura y Alomar, 2015), elaborado a partir de una Investigación Participativa y de una Programación y Diagnóstico Comunitario, en cuyas conclusiones se plantean retos de la comunidad que deben ser abordados desde sus protagonistas. Una de estas líneas implica a la población joven como un colectivo alienado del contexto en el que habita, un espacio urbano que poco a poco se ha ido convirtiendo en un lugar destinado al ocio y consumo turístico, quedando parte de la población residente y sus necesidades cotidianas al margen de este proceso de gentrificación. La iniciativa se enmarca en el Proyecto de Intervención Comunitaria Intercultural (ICI) impulsado por la Obra Social “la Caixa”, gestionado en Palma (islas Baleares) por la asociación GREC y la colaboración del Ayuntamiento. Se trata de uno de los 39 territorios de toda España en el que se implementa este proyecto. Sus objetivos generales son fomentar la convivencia, la cohesión social, favorecer el desarrollo local y mejorar las condiciones de vida de la población.This paper presents the beginning of a socioeducational experience with young people, which has the aim to enhance its role in the community, boosting the youth group to be this same who organize and manage their leisure and free time. The initiative is based on a previous study, the Community Monograph, prepared from a Participatory Research and Community programming and diagnostics, whose conclusions community challenges that must be addressed from its protagonists are raised; one of these lines involves young people as an alienated group of the context in which they live, an urban space that gradually has increasingly become a place for leisure and tourism consumption, being part of the resident population and their needs daily outside this process of gentrification. The initiative is part of the Intercultural Community Intervention Project (ICI) driven by the Obra Social "la Caixa", managed in Palma (Balearic Islands) by the GREC partnership and cooperation of the City Council. This is one of the 39 territories in Spain in which the project is implemented. Its general objectives are to promote conviviality, social cohesion, promoting local development and improve the living conditions of the population.Trabajo derivado del Proyecto “Intervención Comunitaria Intercultural”, financiado por la Obra Social “la Caixa” y el Ayuntamiento de Palma (Islas Baleares –España-

Extending Liquid Types to Arrays

A liquid type is an ordinary Hindley-Milner type annotated with a logical predicate that states the properties satisfied by the elements of that type. Liquid types are a powerful tool for program verification, since programmers can use them to specify pre- and postconditions of their programs, while the predicates of intermediate variables and auxiliary functions are inferred automatically. Type inference is feasible in this context, since the logical predicates within liquid types are constrained to a quantifier-free logic in order to maintain decidability. In this paper we extend liquid types by allowing them to contain quantified properties on arrays, so that they can be used to infer invariants on array-related programs (for example, implementations of sorting algorithms). Although quantified logic is, in general, undecidable, we restrict properties on arrays to a decidable subset introduced by Bradley et al. We describe in detail the extended type system, the verification condition generator, and the iterative weakening algorithm for inferring invariants. After proving the correctness and completeness of these two algorithms, we apply them to find invariants on a set of algorithms involving array manipulations

How to Design Successful Participatory Design Workshops for Digital Health Solutions?

Participatory design (PD) is increasingly used to support design and development of digital health solutions. The involves representatives of future user groups and experts to collect their needs and preferences and ensure easy to use and useful solutions. However, reflections and experiences with PD in designing digital health solutions are rarely reported. The objective of this paper is to collect those experiences including lessons learnt and moderator experiences, and to identify challenges. For this purpose, we conducted a multiple case study to explore the skill development process required to successfully design a solution in the three cases. From the results, we derived good practice guidelines to support designing successful PD workshops. They include adapting the workshop activities and material to the vulnerable participant group and considering their environment and previous experiences, planning sufficient time for preparation and supporting the activities with appropriate material. We conclude that PD workshop results are perceived as useful for designing digital health solutions, but careful design is very relevant

High‐temperature behavior of impurities and dimensionality of the charge transport in unintentionally and tin‐doped indium selenide

A systematic study of the electron transport and shallow impurity distribution in indium selenide above room temperature or after an annealing process is reported by means of far‐infrared‐absorption and Hall‐effect measurements. Evidences are found for the existence of a large concentration of deep levels (1012–1013 cm−2), related to impurities adsorbed to stacking faults in this material. Above room temperature impurities can migrate from those defect zones and then become shallow in the bulk. The subsequent large increase of 3D electrons can change the dimensionality of the electron transport, which in most cases was 2D. The temperature dependence of the resistivity parallel to the c axis can be explained by the observed increase of the 3D electron concentration, whose motion across the layers is limited by stacking‐fault‐related potential barriers. The observed macroscopic resistivity is thus determined by tunneling through those [email protected]

Investigation of conduction band structure, electron scattering mechanisms and phase transitions in indium selenide by means of transport measurements under pressure

In this work we report on Hall effect, resistivity and thermopower measurements in n-type indium selenide at room temperature under either hydrostatic and quasi-hydrostatic pressure. Up to 40 kbar (= 4 GPa), the decrease of carrier concentration as the pressure increases is explained through the existence of a subsidiary minimum in the conduction band. This minimum shifts towards lower energies under pressure, with a pressure coefficient of about -105 meV/GPa, and its related impurity level traps electrons as it reaches the band gap and approaches the Fermi level. The pressure value at which the electron trapping starts is shown to depend on the electron concentration at ambient pressure and the dimensionality of the electron gas. At low pressures the electron mobility increases under pressure for both 3D and 2D electrons, the increase rate being higher for 2D electrons, which is shown to be coherent with previous scattering mechanisms models. The phase transition from the semiconductor layered phase to the metallic sodium cloride phase is observed as a drop in resistivity around 105 kbar, but above 40 kbar a sharp nonreversible increase of the carrier concentration is observed, which is attributed to the formation of donor defects as precursors of the phase transition.Comment: 18 pages, Latex, 10 postscript figure

Transport properties of nitrogen doped p‐gallium selenide single crystals

Nitrogen doped gallium selenide single crystals are studied through Hall effect and photoluminescence measurements in the temperature ranges from 150 to 700 K and from 30 to 45 K, respectively. The doping effect of nitrogen is established and room temperature resistivities as low as 20 Ω cm are measured. The temperature dependence of the hole concentration can be explained through a single acceptor‐single donor model, the acceptor ionization energy being 210 meV, with a very low compensation rate. The high quality of nitrogen doped GaSe single crystals is confirmed by photoluminescence spectra exhibiting only exciton related peaks. Two phonon scattering mechanisms must be considered in order to give quantitative account of the temperature dependence of the hole mobility: scattering by 16.7 meV A′1 homopolar optical phonons with a hole‐phonon coupling constant g2=0.115 and scattering by 31.5 meV LO polar phonon with a hole Fröhlich constant αh⊥[email protected]

Regenerative endodontic procedures: a perspective from stem cell niche biology

[Introduction] Endodontics uses cell therapy strategies to treat pulpal and periapical diseases. During these therapies, surgeons aim to reconstruct the natural microenvironments that regulate the activity of dental stem cells.[Methods] We searched for more than 400 articles in PubMed using key words from regenerative endodontics and dental stem cell biology. In 268 articles, we reviewed what factors may influence histologic results after preclinical dental treatments that use regenerative endodontic procedures after pulpectomy.[Results] Several factors, such as the origin of stem cells, the biomimicry of scaffolds used, and the size of lesions, are considered to influence the histologic appearance of the regenerated pulp-dentin complex after treatments. Information is accumulating on transcription factors that generate the pulp-dentin complex and survival/trophic factors that would benefit niche recovery and histologic results.[Conclusions] In this article, we discuss the noninterchangeability of stem cells, the influence of dentin-entrapped molecule release on pulp regeneration and survival of stem cells, and the need of positional markers to assess treatments histologically. The ex vivo amplification of appropriate dental stem cells, the search for scaffolds storing the molecular diversity entrapped in the dentin, and the use of positional transcription factors as histologic markers are necessary to improve future preclinical experiments

Regenerative Endodontic Procedures: A Perspective from Stem Cell Niche Biology.

Endodontics uses cell therapy strategies to treat pulpal and periapical diseases. During these therapies, surgeons aim to reconstruct the natural microenvironments that regulate the activity of dental stem cells. We searched for more than 400 articles in PubMed using key words from regenerative endodontics and dental stem cell biology. In 268 articles, we reviewed what factors may influence histologic results after preclinical dental treatments that use regenerative endodontic procedures after pulpectomy. Several factors, such as the origin of stem cells, the biomimicry of scaffolds used, and the size of lesions, are considered to influence the histologic appearance of the regenerated pulp-dentin complex after treatments. Information is accumulating on transcription factors that generate the pulp-dentin complex and survival/trophic factors that would benefit niche recovery and histologic results. In this article, we discuss the noninterchangeability of stem cells, the influence of dentin-entrapped molecule release on pulp regeneration and survival of stem cells, and the need of positional markers to assess treatments histologically. The ex vivo amplification of appropriate dental stem cells, the search for scaffolds storing the molecular diversity entrapped in the dentin, and the use of positional transcription factors as histologic markers are necessary to improve future preclinical experiments

Solidaridad en Tiempos de Crisis

La crisis global y local que estamos soportando, la propia crisis del Estado de Bienestar y las nuevas iniciativas sociales parecen llevar al potenciamiento y revitalización tanto de las redes informales de atención social como de la red familiar a través de procesos de solidaridad. La investigación que hemos llevado a cabo es un estudio piloto sobre los fenómenos de solidaridad familiar en tiempos de crisis, realizado con el objetivo de conocer qué peso tiene este modelo de solidaridad en el actual contexto social y económico en familias especialmente vulnerables que forman parte del Programa Municipal de Apoyo a la Familia del Ayuntamiento de Zaragoza, tratando de analizar de forma comparada la situación de estas familias antes de la crisis, cómo se encuentran en la actualidad y cuáles son sus expectativas respecto al apoyo que recibirían en un futuro