Search results for "Recession"
showing 10 items of 250 documents
Probing Lorentz invariance and other fundamental symmetries in3He/129Xe clock-comparison experiments
2011
We discuss the design and performance of a very sensitive low-field magnetometer based on the detection of free spin precession of gaseous, nuclear polarized 3He or 129Xe samples with a SQUID as magnetic flux detector. Characteristic spin precession times T*2 of up to 60 h were measured in low magnetic fields (about 1μT) and in the regime of motional narrowing. With the detection of the free precession of co-located 3He/129Xe nuclear spins (clock comparison), the device can be used as ultra-sensitive probe for non-magnetic spin interactions, since the magnetic dipole interaction (Zeeman-term) drops out in the weighted frequency difference, i.e., Δω = ωHe− γHe/γXe·ωXe. We report on searches …
Spin dynamics in the single-ion magnet [Er(W5O18)2]9−
2018
In this work we present a detailed NMR and ${\ensuremath{\mu}}^{+}\mathrm{SR}$ investigation of the spin dynamics in the new hydrated sodium salt containing the single-ion magnet ${[\mathrm{Er}{({\mathrm{W}}_{5}{\mathrm{O}}_{18})}_{2}]}^{9\ensuremath{-}}$. The $^{1}\mathrm{H}\phantom{\rule{0.16em}{0ex}}\mathrm{NMR}$ absorption spectra at various applied magnetic fields present a line broadening on decreasing temperature which indicates a progressive spin freezing of the single-molecule magnetic moments. The onset of quasistatic local magnetic fields, due to spin freezing, is observed also in the muon relaxation curves at low temperature. Both techniques yield a local field distribution of t…
Anomalous Muon Knight Shift Behavior in a Cd Single Crystal
1983
For the positive muon implanted in a metal the precession frequency shift due to hyperfine fields can be measured with high precision. This provides means to obtain information about the local electronic structure of a hydrogen like impurity in any metal in the indefinitely dilute impurity concentration. Ref. 1 gives a summary of the muon Knight shift (KS) investigations in 18 nontransition (simple) metals and some transition metals and discusses the results in the context of the electronic structure of hydrogen in metals.
Search for Spin-Dependent Short-Range Interaction with an 3He/129Xe Clock Comparison Experiment
2016
We performed an experiment to search for a new spin-dependent P- and T-violating nucleon–nucleon interaction [Formula: see text] which is mediated by light pseudoscalar bosons such as axions or axionlike particles. This interaction causes a shift [Formula: see text] in the precession frequency of nuclear spin polarized gases in the presence of an unpolarized mass. In order to measure this frequency shift a 3He/[Formula: see text]Xe comagnetometer was used which is based on the detection of free precession of 3He and [Formula: see text]Xe nuclear spins using SQUIDs as detectors. For the upper limit of [Formula: see text] we obtained 7.1[Formula: see text]nHz. With this value, an upper limit…
Measurement of the g Factor of the Bound Electron in Hydrogen-like Oxygen 16O7+
2003
The measurement of the g factor of the electron bound in a hydrogen-like ion is a high- accuracy test of the theory of Quantum Electrodynamics (QED) in strong fields. Here we report on the measurement of the g factor of the bound electron in hydrogen-like oxygen 16O7+. In our experiment a single 16O7+ ion is stored in a Penning trap. Quantum jumps between the two spin states (spin up and spin down) are induced by a microwave field at the spin precession frequency of the bound electron. The g factor of the bound electron is obtained by varying the microwave frequency and counting the number of spin flips. Our experimental value for the g factor of the bound electron is gexp(16O7+) = 2.000 04…
Traducción y género: el estado de la cuestión en España
2011
Todo proceso experimenta periodos de avance e involución. Ahora que el feminismo resulta relevante en tantas esferas de la acción política en el mundo, ya sean locales o internacionales, y que la traducción es, más que nunca, reconocida y valorada como un instrumento en las relaciones políticas, este parece ser un buen momento para reflexionar sobre el estado de la cuestión en torno al feminismo dentro del mundo de la traducción, donde es ya innegable que se entrelazan la política y el lenguaje. Son muchas las preguntas que cabría formularse: ¿sigue siendo la traducción feminista un campo de investigación interesante en España? ¿Han avanzado al mismo ritmo la teoría y la práctica? ¿Han alte…
Economic crisis and child maltreatment in Spain: the consequences of the recession in the child protection system
2021
Purpose This study aims to examine the consequences of the last great recession on the child protection system (CPS) in Spain, to estimate whether there is any kind of relationship between the conditions of socio-economic crisis and its protective activity. Design/methodology/approach Data on child protection legal measures issued by the CPS and socio-economic data from 8 of the 17 regions of the country were cross-checked. Using the chi-square test, it was possible to determine the significance and intensity of the relationship between the different variables in each of the regions of the study. Findings During the crisis, the number of recorded cases fell most sharply in those regions wi…
Well-being and the Great Recession in Spain
2018
This is an original manuscript / preprint of an article published by Taylor & Francis in Applied Economics Letters on 2019, available online: https://doi.org/10.1080/13504851.2018.1545076 This letter assesses the impact of the Great Recession on well-being in Spanish provinces using two alternative composite indicators of objective well-being that include somewhat different dimensions. Whereas the crisis notably eroded economic well-being, its impact on overall well-being – which in addition to economic dimensions also includes non-economic ones – was imperceptible. This result points to the need to carefully define and assess well-being in empirical analyses.
The effect of the great recession on foreign direct investment: global empirical evidence with a gravity approach
2013
This article estimates the effect of the present global systemic banking crisis on foreign direct investment (FDI) using the gravity equation on a sample of 161 countries over the period 2003 to 2010. Systemic banking crises, through demand shocks and credit constraints, may impact FDI in two ways: aggregate monetary flows and individual projects count. Since gravity equations account for output variations, our research relies on the financial constraints channel. We find that the great recession, through credit constraints on home supply markets, has reduced the number of FDI projects, but not their size, forcing investors to become more selective on their international endeavours.
Structural reforms in a debt overhang
2014
We assess the effects of reforms in product and labor markets in a model economy featuring credit restrictions and pre-existing long-term debt. Both elements, which are core features of the current scenario faced by some euro area countries, combine to produce a slow and protracted deleveraging of the private sector and a persistent recession following a negative financial shock. In this environment, we show that product and labor market reforms may stimulate output and employment even in the short run, despite their defl ationary effects. Furthermore, by favoring a faster recovery of investment and collateral values, product market reforms bring forward the end of deleveraging and the exit…