6,410 research outputs found
Women Returning to Employment, Education and Training in Ireland - An Analysis of Transitions
Recent improvements in the Irish labour market have led to a substantial increase in the labour force participation rate of women in Ireland. Part of this increase has been fuelled by women moving from the home into paid employment. Much of the existing research on labour market activity among Irish women has focused on cross-sectional analyses of the stock of labour market participants. In this paper we aim to address some of the gaps in the literature by investigating the transition from home to work, and from home to education, training and employment schemes among women in Ireland during the period 1994 to 1999. We adopt a dynamic approach by drawing on the nationally representative longitudinal data in the Living in Ireland Survey. This allows us to provide, for the first time, a representative profile of returners, and to formally model the transition process in terms of supply and demand factors. The analysis also investigates the factors associated with the return to part-versus full-time work. Our analysis reveals that about one-quarter of those engaged full-time in home duties in 1994 had made a transition to paid work within the six-year period 1994-1999. The study identifies a number of key factors that influence the transition from home to work or education, training and employment schemes, including, on the supply side, age, education, previous work experience, time out of the labour force, and the presence of young children in the household, and on the demand side, macro-economic conditions and urban versus rural residence.
Generalization of the Schott energy in electrodynamic radiation theory
We discuss the origin of the Schott energy in the Abraham-Lorentz version of
electrodynamic radiation theory and how it can be used to explain some apparent
paradoxes. We also derive the generalization of this quantity for the
Ford-O'Connell equation, which has the merit of being derived exactly from a
microscopic Hamiltonian for an electron with structure and has been shown to be
free of the problems associated with the Abraham-Lorentz theory. We emphasize
that the instantaneous power supplied by the applied force not only gives rise
to radiation (acceleration fields), but it can change the kinetic energy of the
electron and change the Schott energy of the velocity fields. The important
role played by boundary conditions is noted
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Interventions for treating pain and disability in adults with complex regional pain syndrome - An overview of systematic reviews
This article is available open access through the publisherâs website at the link below. Copyright © 2013 The Cochrane Collaboration.Background - There is currently no strong consensus regarding the optimal management of complex regional pain syndrome although a multitude of interventions have been described and are commonly used.
Objectives - To summarise the evidence from Cochrane and non-Cochrane systematic reviews of the effectiveness of any therapeutic intervention used to reduce pain, disability or both in adults with complex regional pain syndrome (CRPS).
Methods - We identified Cochrane reviews and non-Cochrane reviews through a systematic search of the following databases: Cochrane Database of Systematic Reviews, Database of Abstracts of Reviews of Effects (DARE), Ovid MEDLINE, Ovid EMBASE, CINAHL, LILACS and PEDro. We included non-Cochrane systematic reviews where they contained evidence not covered by identified Cochrane reviews. The methodological quality of reviews was assessed using the AMSTAR tool. We extracted data for the primary outcomes pain, disability and adverse events, and the secondary outcomes of quality of life, emotional well being and participants' ratings of satisfaction or improvement. Only evidence arising from randomised controlled trials was considered. We used the GRADE system to assess the quality of evidence.
Main results - We included six Cochrane reviews and 13 non-Cochrane systematic reviews. Cochrane reviews demonstrated better methodological quality than non-Cochrane reviews. Trials were typically small and the quality variable.
There is moderate quality evidence that intravenous regional blockade with guanethidine is not effective in CRPS and that the procedure appears to be associated with the risk of significant adverse events.
There is low quality evidence that bisphosphonates, calcitonin or a daily course of intravenous ketamine may be effective for pain when compared with placebo; graded motor imagery may be effective for pain and function when compared with usual care; and that mirror therapy may be effective for pain in post-stroke CRPS compared with a 'covered mirror' control. This evidence should be interpreted with caution. There is low quality evidence that local anaesthetic sympathetic blockade is not effective. Low quality evidence suggests that physiotherapy or occupational therapy are associated with small positive effects that are unlikely to be clinically important at one year follow up when compared with a social work passive attention control.
For a wide range of other interventions, there is either no evidence or very low quality evidence available from which no conclusions should be drawn.
Authors' conclusions - There is a critical lack of high quality evidence for the effectiveness of most therapies for CRPS. Until further larger trials are undertaken, formulating an evidence-based approach to managing CRPS will remain difficult
Minimal Extension of the Standard Model Scalar Sector
The minimal extension of the scalar sector of the standard model contains an
additional real scalar field with no gauge quantum numbers. Such a field does
not couple to the quarks and leptons directly but rather through its mixing
with the standard model Higgs field. We examine the phenomenology of this model
focusing on the region of parameter space where the new scalar particle is
significantly lighter than the usual Higgs scalar and has small mixing with it.
In this region of parameter space most of the properties of the additional
scalar particle are independent of the details of the scalar potential.
Furthermore the properties of the scalar that is mostly the standard model
Higgs can be drastically modified since its dominant branching ratio may be to
a pair of the new lighter scalars.Comment: 4 pages, 2 figure
Fluctuations Do Matter: Large Noise-Enhanced Halos in Charged-Particle Beams
The formation of beam halos has customarily been described in terms of a
particle-core model in which the space-charge field of the oscillating core
drives particles to large amplitudes. This model involves parametric resonance
and predicts a hard upper bound to the orbital amplitude of the halo particles.
We show that the presence of colored noise due to space-charge fluctuations
and/or machine imperfections can eject particles to much larger amplitudes than
would be inferred from parametric resonance alone.Comment: 13 pages total, including 5 figure
Experiences of food poverty among undocumented parents with children in three European countries: a multi-level research strategy
A growing literature addresses undocumented migrants in different countries, with governmental exclusion from welfare and health services a common theme. However, little is known comparatively about the difference social context makes to the resources available to these migrants in different circumstances or how they manage and experience material deprivation and social exclusion. Adopting a realist approach, this paper draws on a comparative study that examined food poverty in low-income families with children aged 11â15 years in the UK, Portugal and Norway following the 2008 financial crisis. It shows the ways in which the studyâs multi-tiered research design enabled the analysis of the complex conditions in which parents sought to sustain and feed their families. Undocumented migrants living in extreme conditions constitute âtest casesâ for examining the specific resources available (or not) to households in different layers of context and the consequences for the ways in which food and food poverty were experienced by children and parents in these contexts. The paper thus contributes to the methodological literature on comparative research, in particular to research design in the field of migration and to knowledge about an under-researched group in an increasingly hostile Europe
EUROPEAN MIGRATION NETWORK. IMMIGRATION OF INTERNATIONAL STUDENTS TO THE EU: IRELAND
This report is the Irish contribution to the EMN study on the âImmigration of International (non-EEA) Students to the EUâ. This EMN study topic is particularly timely in the Irish case, as it follows a period of significant policy activity in this domain throughout 2010 and 2011. In September 2010, the Irish Government launched its first international education strategy, entitled Investing in Global Relationships: Irelandâs International Education Strategy 2010-15. The publication of the strategy was the culmination of efforts to facilitate a more joined-up approach to the provision of international education, with efforts co-ordinated by a High-Level Group on International Education. The Irish contribution to the EMN study is set within this overarching context
Literacy, Numeracy and Activation among the Unemployed. RESEARCH SERIES NUMBER 25 June 2012
It is well established in research that people with weak literacy and
numeracy skills are more likely to be unemployed. Therefore, it should
follow that this issue is an important consideration in labour market policy
and more particularly activation policy. However, the National Adult
Literacy Agency (NALA) is of the view that this has not always been the
case and is concerned that unemployed adults with literacy and numeracy
needs, and those with low educational attainment, are not being
adequately prioritised for labour market activation. This research puts
forward an argument for this to be changed
Production of Enhanced Beam Halos via Collective Modes and Colored Noise
We investigate how collective modes and colored noise conspire to produce a
beam halo with much larger amplitude than could be generated by either
phenomenon separately. The collective modes are lowest-order radial eigenmodes
calculated self-consistently for a configuration corresponding to a
direct-current, cylindrically symmetric, warm-fluid Kapchinskij-Vladimirskij
equilibrium. The colored noise arises from unavoidable machine errors and
influences the internal space-charge force. Its presence quickly launches
statistically rare particles to ever-growing amplitudes by continually kicking
them back into phase with the collective-mode oscillations. The halo amplitude
is essentially the same for purely radial orbits as for orbits that are
initially purely azimuthal; orbital angular momentum has no statistically
significant impact. Factors that do have an impact include the amplitudes of
the collective modes and the strength and autocorrelation time of the colored
noise. The underlying dynamics ensues because the noise breaks the
Kolmogorov-Arnol'd-Moser tori that otherwise would confine the beam. These tori
are fragile; even very weak noise will eventually break them, though the time
scale for their disintegration depends on the noise strength. Both collective
modes and noise are therefore centrally important to the dynamics of halo
formation in real beams.Comment: For full resolution pictures please go to
http://www.nicadd.niu.edu/research/beams
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Malaria infection does not affect the sensitivity of peripheral receptor neurons in Anopheles stephensi
Background: Mosquitoes transmit many important diseases including malaria, dengue and yellow fever. Disease transmission from one vertebrate host to another depends on repeated blood feedings by single mosquitoes. In order for the mosquito to acquire the blood that it needs to complete oogenesis, the insect must locate a suitable host. Olfactory cues (including carbon dioxide) released by the host and detected by the mosquito are the primary signals that vector insects use for host location. Previous studies have suggested that the physiological status - including bacterial, fungal, viral and Plasmodium infections - can modulate aspects of behavior in haematophagous insects. Methods: Standard electrophysiological techniques were used to record extracellular responses from the receptor neurons located in sensilla found on the maxillary palps of the insects. The recording microelectrode was inserted through the cuticle at the base of an individual sensillum and the extracellular electrical signals obtained from the three neurons within the sensillum were recorded. Stimulations consisted of 2 s pulses of the desired concentrations of CO2 or dosages of 1-octen-3-ol. Results: Accordingly, we were interested in determining whether Plasmodium infection affects the sensitivity of those peripheral olfactory sensors that are involved in host-seeking in mosquitoes. Our studies indicate that infection of female Anopheles stephensi with Plasmodium berghei does not alter the response characteristics of the neurons innervating the maxillary palp sensilla that respond to the attractants carbon dioxide and 1-octen-3-ol. Although the response characteristics of the peripheral sensory neurons are not affected by infection status, we found that the age of the mosquito alone does affect the threshold of sensitivity of these neurons to carbon dioxide. The proportion of older insects (21â30 d post-emergence) that responds to 150 ppm carbon dioxide is higher than the proportion that responds among younger insects (1â10 d post-emergence). Conclusions: Anopheles stephensi infected with Plasmodium berghei exhibit sensitivities to stimulation with carbon dioxide and 1-octen-3-ol similar to those of uninfected mosquitoes. However, the age of the infected or uninfected mosquito does affect the threshold of sensitivity of these neurons to carbon dioxide
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