67 research outputs found
«Diseño para todos» en la investigación social sobre personas con discapacidad
[EN] Social studies on disability have increased in number and importance in
Spain and other countries over the last few years. Nevertheless, the
majority of the available sources and studies do not adequately
represent this heterogeneous group, which currently makes up about 9
per cent of the Spanish population. The implementation of social
measures requires representative sources and studies containing
relevant information. The aim of this paper is to identify the main
diffi culties involved in designing and developing social research
methods concerning persons with disabilities, and offer proposals and
recommendations in order to advance towards a more inclusive social
research using the concepts of accessibility and design for all.[ES] Los estudios sociales sobre la discapacidad han aumentado en nĂşmero e
importancia en España y otros paĂses durante los Ăşltimos años. Sin
embargo, la mayorĂa de fuentes de informaciĂłn y estudios disponibles no
recogen de manera adecuada la realidad de un colectivo muy heterogéneo,
que supone en la actualidad aproximadamente el 9 por ciento de la
población española. La implementación de medidas sociales requiere de
fuentes y estudios representativos que aporten informaciĂłn precisa
acerca de estas personas. El objetivo de esta nota es identifi car las
principales difi cultades que se plantean a la hora de diseñar y llevar
a la práctica metodologĂas de investigaciĂłn social adecuadas hacia las
personas con discapacidad, asĂ como ofrecer propuestas y recomendaciones
para avanzar hacia una investigación social más inclusiva,
mediante los conceptos de accesibilidad y diseño para todos.Work carried out as part of the framework of research projects: “Qualitative Tracking with Young Disabled in European States. Quali-TYDES” (European Science Foundation, 09-ECRP-032) and “Hidden Innovation: paradigm shift in innovation studies” (Spanish Ministry of Economy and Competitiveness, FFI2011-25475).Peer reviewe
Hessische Forschungsdateninfrastrukturen HeFDI
Das Projekt „Hessische Forschungsdateninfrastrukturen“ (HeFDI) setzt auf die kooperative Entwicklung einer gemeinsamen Forschungsdatenstrategie und den Aufbau vernetzter Services. Durch den Zusammenschluss von zehn hessischen Hochschulen baut der so entstandene Verbund auf Kooperation durch institutionelle Arbeitsteilung
Ultrafast all-optical switching by single photons
An outstanding goal in quantum optics is the realization of fast optical
non-linearities at the single-photon level. Such non-linearities would allow
for the realization of optical devices with new functionalities such as a
single-photon switch/transistor or a controlled-phase gate, which could form
the basis of future quantum optical technologies. While non-linear optics
effects at the single-emitter level have been demonstrated in different
systems, including atoms coupled to Fabry-Perot or toroidal micro-cavities,
super-conducting qubits in strip-line resonators or quantum dots (QDs) in
nano-cavities, none of these experiments so far has demonstrated single-photon
switching on ultrafast timescales. Here, we demonstrate that in a strongly
coupled QD-cavity system the presence of a single photon on one of the
fundamental polariton transitions can turn on light scattering on a transition
from the first to the second Jaynes-Cummings manifold with a switching time of
20 ps. As an additional device application, we use this non-linearity to
implement a single-photon pulse-correlator. Our QD-cavity system could form the
building-block of future high-bandwidth photonic networks operating in the
quantum regime
Data from the German TwinLife Study: Genetic and Social Origins of Educational Predictors, Processes, and Outcomes
The major aim of the German TwinLife study is the investigation of gene-environment interplay driving educational and other inequalities across developmental trajectories from childhood to early adulthood. TwinLife encompasses an 8-year longitudinal, cross-sequential extended twin family design with data from same-sex twins of four age cohorts (5, 11, 17, and 23 years) and their parents, as well as their non-twin siblings, partners, and children, if available, altogether containing N = 4,096 families. As such, TwinLife includes unique and openly accessible data that allows, but is not limited to, genetically informative and environmentally sensitive research on sources of inequalities regarding educational attainment, school achievement, and skill development
The Influence of Spatial Registration on Detection of Cerebral Asymmetries Using Voxel-Based Statistics of Fractional Anisotropy Images and TBSS
The sensitivity of diffusion tensor imaging (DTI) for detecting microstructural white matter alterations has motivated the application of voxel-based statistics (VBS) to fractional anisotropy (FA) images (FA-VBS). However, detected group differences may depend on the spatial registration method used. The objective of this study was to investigate the influence of spatial registration on detecting cerebral asymmetries in FA-VBS analyses with reference to data obtained using Tract-Based Spatial Statistics (TBSS). In the first part of this study we performed FA-VBS analyses using three single-contrast and one multi-contrast registration: (i) whole-brain registration based on T2 contrast, (ii) whole-brain registration based on FA contrast, (iii) individual-hemisphere registration based on FA contrast, and (iv) a combination of (i) and (iii). We then compared the FA-VBS results with those obtained from TBSS. We found that the FA-VBS results depended strongly on the employed registration approach, with the best correspondence between FA-VBS and TBSS results when approach (iv), the “multi-contrast individual-hemisphere” method was employed. In the second part of the study, we investigated the spatial distribution of residual misregistration for each registration approach and the effect on FA-VBS results. For the FA-VBS analyses using the three single-contrast registration methods, we identified FA asymmetries that were (a) located in regions prone to misregistrations, (b) not detected by TBSS, and (c) specific to the applied registration approach. These asymmetries were considered candidates for apparent FA asymmetries due to systematic misregistrations associated with the FA-VBS approach. Finally, we demonstrated that the “multi-contrast individual-hemisphere” approach showed the least residual spatial misregistrations and thus might be most appropriate for cerebral FA-VBS analyses
The QCD transition temperature: results with physical masses in the continuum limit II.
We extend our previous study [Phys. Lett. B643 (2006) 46] of the cross-over
temperatures (T_c) of QCD. We improve our zero temperature analysis by using
physical quark masses and finer lattices. In addition to the kaon decay
constant used for scale setting we determine four quantities (masses of the
\Omega baryon, K^*(892) and \phi(1020) mesons and the pion decay constant)
which are found to agree with experiment. This implies that --independently of
which of these quantities is used to set the overall scale-- the same results
are obtained within a few percent. At finite temperature we use finer lattices
down to a <= 0.1 fm (N_t=12 and N_t=16 at one point). Our new results confirm
completely our previous findings. We compare the results with those of the
'hotQCD' collaboration.Comment: 19 pages, 8 figures, 3 table
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