4,158 research outputs found
Limits to Regulating Irregular Migration in Turkey: What Constrains Public Policy and Why?
Cataloged from PDF version of article.Turkey, similar to its counterparts in emerging markets, has been aiming to
reduce irregular migration effectively and comprehensively with various sets of policies
since the 1990s. However, the number of undocumented migrants continues to increase and
unregistered foreign employment is as high as ever. This study aims to explain the reasons
underlying this conundrum by focusing on the nature of the policies adopted and the characteristics
of the target population relying on data collected on a sample of unregistered foreign
workers in the textile sector in Istanbul. It argues that the reasons for the limited effectiveness
of the policies is attributable to structural factors such as inherent problems with the existing
policies for regulating irregular migration and preferences as well as the behavior of the unregistered
foreign workers and their employers
What Moves the Highly Skilled and Why? Comparing Turkish Nationals in Canada and Germany
Based on in-depth interviews with highly skilled and business Turkish nationals (HSBTN) in Canada and Germany, this study aims to explore why HSBTN decide to move and whether migration policy differences among the countries of destination affect recent migration motivations of HSBTN. It mainly focuses on the reasons and rationale of HSBTN and their explanations. This study argues that the high skilled and business migrants in general and HSBTN in particular move internationally as a consequence of individual-level gain beyond economic prospects. Š 2016 The Authors. International Migration Š 2016 IO
Commissioning of the CMS zero degree calorimeter using LHC beam
This paper reports on the commissioning and first running experience of the
CMS Zero Degree Calorimeters during December 2009. All channels worked
correctly. The ZDCs were timed into the data acquisition system using beam
splash events. These data also allowed us to make a first estimate of
channel-by-channel variations in gain.Comment: 6 pages, 8 figures, Presented at CALOR2010: 14th International
Conference for Calorimetry in High Energy Physic
Exact Solution of Photon Equation in Stationary G\"{o}del-type and G\"{o}del Space-Times
In this work the photon equation (massless Duffin-Kemmer-Petiau equation) is
written expilicitly for general type of stationary G\"{o}del space-times and is
solved exactly for G\"{o}del-type and G\"{o}del space-times. Harmonic
oscillator behaviour of the solutions is discussed and energy spectrum of
photon is obtained.Comment: 9 pages,RevTeX, no figure, revised for publicatio
Where the Sidewalk Ends: Jets and Missing Energy Search Strategies for the 7 TeV LHC
This work explores the potential reach of the 7 TeV LHC to new colored states
in the context of simplified models and addresses the issue of which search
regions are necessary to cover an extensive set of event topologies and
kinematic regimes. This article demonstrates that if searches are designed to
focus on specific regions of phase space, then new physics may be missed if it
lies in unexpected corners. Simple multiregion search strategies can be
designed to cover all of kinematic possibilities. A set of benchmark models are
created that cover the qualitatively different signatures and a benchmark
multiregion search strategy is presented that covers these models.Comment: 30 pages, 8 Figures, 3 Tables. Version accepted at JHEP. Minor
changes. Added figur
Bigger, Better, Faster, More at the LHC
Multijet plus missing energy searches provide universal coverage for theories
that have new colored particles that decay into a dark matter candidate and
jets. These signals appear at the LHC further out on the missing energy tail
than two-to-two scattering indicates. The simplicity of the searches at the LHC
contrasts sharply with the Tevatron where more elaborate searches are necessary
to separate signal from background. The searches presented in this article
effectively distinguish signal from background for any theory where the LSP is
a daughter or granddaughter of the pair-produced colored parent particle
without ever having to consider missing energies less than 400 GeV.Comment: 26 pages, 8 Figures. Minor textual changes, typos fixed and
references adde
Effect of iloprost on contractile impairment and mitochondrial degeneration in ischemia-reperfusion of skeletal muscle
Purpose Acute lower extremity ischemia is still a main cause of mortality and morbidity in orthopedic traumatology and reconstructive surgery. In acute lower extremity ischemia, the skeletal muscles are the tissues that are the most vulnerable to ischemia. The aim of this study was to evaluate the effects of iloprost (IL) therapy on skeletal muscle contractile impairment and mitochondrial degeneration in an acute lower extremity ischemia-reperfusion rat model. Main Methods Forty Wistar albino rats were randomly divided into a control group and four experimental groups. Experimental groups were either subjected to 2Â h of lower extremity ischemia followed by a 4-h reperfusion period or to 4Â h of ischemia followed by an 8-h reperfusion period. Except for the animals in the control group, all animals received IL (1Â ng/kg/min) or saline (1Â ml/kg) by intraperitoneal infusion for 10Â min immediately before reperfusion. At the end of the recording of skeletal muscle electrical activity and contractility, all rats were sacrificed by decapitation and muscle samples of lower extremity were immediately harvested for histopathologic analyses. Results After ischemia-reperfusion, a breakdown in the forceâfrequency curves of extensor digitorum longus muscle was observed, showing the diminished muscle contractility. However, IL significantly improved muscle contractility following injury induced by 2Â h of ischemia followed by a 4-h reperfusion period. In addition, IL partially ameliorated mitochondrial degeneration in the muscle cells of ischemia groups. Conclusion This study indicates that immediate IL therapy repairs muscle damage especially after 2Â h of ischemia and 4Â h of reperfusion and therefore that IL improves contractile function
Clinical Standardized fMRI Reveals Altered Language Lateralization in Patients with Brain Tumor
Search for the standard model Higgs boson in the H to ZZ to 2l 2nu channel in pp collisions at sqrt(s) = 7 TeV
A search for the standard model Higgs boson in the H to ZZ to 2l 2nu decay
channel, where l = e or mu, in pp collisions at a center-of-mass energy of 7
TeV is presented. The data were collected at the LHC, with the CMS detector,
and correspond to an integrated luminosity of 4.6 inverse femtobarns. No
significant excess is observed above the background expectation, and upper
limits are set on the Higgs boson production cross section. The presence of the
standard model Higgs boson with a mass in the 270-440 GeV range is excluded at
95% confidence level.Comment: Submitted to JHE
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