Search results for " Institutions."
showing 10 items of 249 documents
Search for CP violation in D (+/-) -> (KSK +/-)-K-0 and D-s(+/-) -> K-S(0)pi(+/-) decays
2014
A search for \CP violation in Cabibbo-suppressed $D^{\pm}\rightarrow K^0_{\mathrm{S}} K^{\pm}$ and $D^{\pm}_{s}\rightarrow K^0_{\mathrm{S}} \pi^{\pm}$ decays is performed using $pp$ collision data, corresponding to an integrated luminosity of 3~fb$^{-1}$, recorded by the LHCb experiment. The individual $CP$-violating asymmetries are measured to be \begin{eqnarray*} \mathcal{A}_{CP}^{D^{\pm}\rightarrow K^0_{\mathrm{S}} K^{\pm}} & = & (+0.03 \pm 0.17 \pm 0.14) \% \mathcal{A}_{CP}^{D^{\pm}_{s}\rightarrow K^0_{\mathrm{S}} \pi^{\pm}} & = & (+0.38 \pm 0.46 \pm 0.17) \%, \end{eqnarray*} assuming that $CP$ violation in the Cabibbo-favoured decays is negligible. A combination of the measured asymmet…
Cultural institutions as agents of urban and community regeneration in the (post-)pandemic city. The case of the «Laboratorio Zen Insieme» in Palermo
2022
Although all cities in the world have been affected by the COVID-19 pandemic, its impacts on the territories, yet to be understood, are unevenly distributed, revealing extremely varied imbalances depending on the places. However, it is clear that the virus and its variants have aggravated pre-existing socio-spatial inequalities, creating new ones and bringing attention back to those implications between space, planning, public health and citizenship that are at the origins of contemporary urbanism. In a reference framework in which the crisis is globalized but unequal and in the absence of a welfare system capable of responding to the urgencies of the most marginalized social contexts and g…
Organic consumption and consumer participation in food community networks
2012
Due to improvements in welfare, new food consumption concerns have emerged in Europe. Such concerns go beyond issues related to food safety and market prices. Solidarity Purchasing Groups (GASs) are one way to combine utilitarian and ethical aspects: in these groups the trade in organic products predominates. The aim of GAS groups is to primarily develop a local economy which is both ethical and fair, providing networks of economic solidarity through social relations and economic-territorial districts. This paper sets out to determine the profiles of the consumer groups that constitute GASs in Sicily (southern Italy) in order to search for key elements of the movement in terms of both commu…
Organizational change in higher education in Colombia: Perspectives and challenges
2020
[ES] Este artículo presenta, de un lado, una perspectiva de las principales transformaciones y retos de la educación superior en Colombia y, de otro, los cambios organizativos que, en el marco de dichos retos, vienen desarrollando las instituciones de educación superior, así como un panorama frente a las estructuras administrativas y el perfil de formación de sus dirigentes. Para ello se desarrolló un análisis teórico y un estudio empírico que consistió en el diseño, validación y aplicación de un cuestionario a directores de programas del campo de la educación física en el país. Los resultados del análisis teórico dan cuenta de la evolución histórica de la educación superior en diversos mom…
Ecosystem services mapping and assessment for policy- and decision-making : Lessons learned from a comparative analysis of European case studies
2020
This paper analyses and compares a set of case studies on ecosystem services (ES) mapping and assessment with the purpose of formulating lessons learned and recommendations. Fourteen case studies were selected during the EU Horizon 2020 “Coordination and Support Action” ESMERALDA to represent different policy- and decision-making processes throughout the European Union, across a wide range of themes, biomes and scales. The analysis is based on a framework that addresses the key steps of an ES mapping and assessment process, namely policy questions, stakeholder identification and involvement, application of mapping and assessment methods, dissemination and communication and implementation. T…
Manipulating the alpha level cannot cure significance testing
2018
We argue that making accept/reject decisions on scientific hypotheses, including a recent call for changing the canonical alpha level from p = 0.05 to p = 0.005, is deleterious for the finding of new discoveries and the progress of science. Given that blanket and variable alpha levels both are problematic, it is sensible to dispense with significance testing altogether. There are alternatives that address study design and sample size much more directly than significance testing does; but none of the statistical tools should be taken as the new magic method giving clear-cut mechanical answers. Inference should not be based on single studies at all, but on cumulative evidence from multiple in…
La dimensión participativa en el diseño de políticas urbanas. El caso valenciano
2018
La aparición y proliferación de iniciativas ciudadanas que tienen como objetivo gestionar de forma distinta los recursos públicos en muchas de las grandes capitales de Europa, hace plantearse en qué estado se encuentran las políticas públicas y sobre todo su gestión. Estamos hablando de una serie de iniciativas surgidas de abajo-arriba que han cambiado la forma tradicional de gestionar la ciudad basada en el tradicional enfoque administrativista de arriba-abajo. Recientemente muchos gobiernos, como consecuencia de estas iniciativas, y de la carencia de recursos y capacidades con los que poder afrontar viejos y nuevos retos, están diseñando nuevas políticas de desarrollo urbano que impliquen…
Los empleados de las entidades de créditos españolas, desde una óptica de responsabilidad social empresarial
2015
La exigencia de la sociedad occidental de considerar algo más que beneficios económicos por parte de las entidades de crédito, requiere y reclama beneficios sociales. Es cada vez mayor, el convencimiento de que la repercusión de las actividades de una entidad de crédito en los derechos humanos de sus empleados y de las comunidades locales, sobrepasa el ámbito de los derechos laborales. El objetivo es evaluar si las entidades de crédito con mayor sensibilidad hacia Responsabilidad Social Empresarial implementan prácticas de valores compartidos con sus empleados. El trabajo de campo se realizó a través de una encuesta postal contestada por los responsables de la Responsabilidad Social Empresa…
Size-And Wavelength-Dependent Two-Photon Absorption Cross-Section of CsPbBr3 Perovskite Quantum Dots
2017
All-inorganic colloidal perovskite quantum dots (QDs) based on cesium, lead, and halide have recently emerged as promising light emitting materials. CsPbBr3 QDs have also been demonstrated as stable two-photon-pumped lasing medium. However, the reported two photon absorption (TPA) cross sections for these QDs differ by an order of magnitude. Here we present an in-depth study of the TPA properties of CsPbBr3 QDs with mean size ranging from 4.6 to 11.4 nm. By using femtosecond transient absorption (TA) spectroscopy we found that TPA cross section is proportional to the linear one photon absorption. The TPA cross section follows a power law dependence on QDs size with exponent 3.3 +- 0.2. The …
Phenomenological consequences of the seesaw mechanism in S-4 based models
2009
Reference [1] proposed a flavor model based on the symmetry group S-4, managing to describe fermion masses and mixings. The Weinberg operator has been used in order to provide the smallness of the neutrino masses, while a set of scalar fields, getting nonvanishing vacuum expectation values, spontaneously breaks down S-4 and provides the tri-bimaximal pattern as the lepton mixing matrix. Restricting to this setting, in this paper we analyze possible origins for the effective terms: the type I seesaw mechanism is the best known approach, but type II and III are also discussed. The phenomenology related to these models is various and future experiments could in principle discriminate among the…