3,408 research outputs found
Simultaneity and networks in transnational migration: Lessons learned from an SMS methodology
Resilience among Nigerian transnational parents in the Netherlands: a strengthâbased approach to migration and transnational parenting
Resilience among Nigerian transnational parents in the Netherlands: a strengthâbased approach to migration and transnational parenting
Threshold Photo/Electro Pion Production - Working Group Summary
We summarize the pertinent experimental and theoretical developments in the
field of pion photo- and electroproduction in the threshold region. We discuss
which experiments and which calculations should be done/performed in the
future.Comment: plain TeX (macro included), 6pp, summary talk presented at the
workshop on "Chiral Dynamics: Theory and Experiments", MIT, July 25-29, 199
An electromagnetic shashlik calorimeter with longitudinal segmentation
A novel technique for longitudinal segmentation of shashlik calorimeters has
been tested in the CERN West Area beam facility. A 25 tower very fine samplings
e.m. calorimeter has been built with vacuum photodiodes inserted in the first 8
radiation lengths to sample the initial development of the shower. Results
concerning energy resolution, impact point reconstruction and electron/pion
separation are reported.Comment: 13 pages, 12 figure
Rethinking value in health innovation: from mystifications towards prescriptions
Debates over value in health innovation in the U.S. and Europe have
become increasingly dominated by âvalue-based pricingâ. We examine this prevailing narrative and its weaknesses and then present an
alternative framework for rethinking value in health. Drawing on
scholarship from the political economy of innovation, we argue that
value in health must be considered in terms of both value creation
as a collective process amongst public and private actors, as well as
value extraction that occurs due to financialization. In building this
alternative framework, we pose three questions that present areas
for further research and public policy change
Spatial and Wavenumber Resolution of Doppler Reflectometry
Doppler reflectometry spatial and wavenumber resolution is analyzed within
the framework of the linear Born approximation in slab plasma model. Explicit
expression for its signal backscattering spectrum is obtained in terms of
wavenumber and frequency spectra of turbulence which is assumed to be radially
statistically inhomogeneous. Scattering efficiency for both back and forward
scattering (in radial direction) is introduced and shown to be inverse
proportional to the square of radial wavenumber of the probing wave at the
fluctuation location thus making the spatial resolution of diagnostics
sensitive to density profile. It is shown that in case of forward scattering
additional localization can be provided by the antenna diagram. It is
demonstrated that in case of backscattering the spatial resolution can be
better if the turbulence spectrum at high radial wavenumbers is suppressed. The
improvement of Doppler reflectometry data localization by probing beam focusing
onto the cut-off is proposed and described. The possibility of Doppler
reflectometry data interpretation based on the obtained expressions is shown.Comment: http://stacks.iop.org/0741-3335/46/114
- âŠ