4,923 research outputs found

    Graduate Employment in the UK: An Application of the Gottschalk-Hansen Model

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    There is an apparent inconsistency in the existing literature on graduate employment in the UK. While analyses of rates of return to graduates or graduate markups show high returns, suggesting that demand has kept up with a rapidly rising supply of graduates, the literature on over-education suggests that many graduates are unable to find employment in graduate jobs and the proportion over-educated has risen over time. Using a simple supply and demand model applied to UK data that defines graduate jobs in terms of the proportion of graduates and/or the graduate earnings markup within occupations, we find that the employment of graduates in non-graduate jobs has declined over time. Hence, there is no evidence of an over-production of graduates in the UK.employment, wages, education, graduates

    Total focussing method for volumetric imaging in immersion non destructive evaluation

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    This paper describes the use of a 550 (25x22) element 2MHz 2D piezoelectric composite array in immersion mode to image an aluminum test block containing a collection of artificial defects. The defects included a 1mm diameter side-drilled hole, a collection of 1mm slot defects with varying degrees of skew to the normal and a flat bottomed hole. The data collection was carried out using the full matrix capture; a scanning procedure was developed to allow the operation of the large element count array through a conventional 64-channel phased array controller. A 3D TFM algorithm capable of imaging in a dual media environment was implemented in MATLAB for the offline processing the raw scan data. This algorithm facilitates the creation of 3D images of defects while accounting for refraction effects at material boundaries. In each of the test samples interrogated the defects, and their spatial position, are readily identified using TFM. Defect directional information has been characterized using VTFM for defect exhibiting angles up to and including 45o of skew

    The Changing Wage Return to an Undergraduate Education

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    Between 1990/91 and 2000/01 the number of male undergraduates in Britain increased by over one-third while the number of female undergraduates has increased nearly twofold. Given this substantial increase in supply we would expect some impact on the wage premium for recent graduates unless demand has shifted in parallel. Following Katz and Murphy (1992), we adopt a simple supply and demand framework to analyse changes in earnings mark-ups across degree disciplines over time. Using a propensity score approach to match those graduates entering the labor market with an age balanced sample of individuals with two or more A-Levels from the Labour Force Survey, we find a significant decline in the markup for females, whilst no such change is apparent for males. These aggregate figures, however, mask a great deal of variation across degree subjects, with declines in those subjects in which women predominate and in the lowest quartile of the earnings distribution being identified. The results point to both supply and demand factors impacting on the graduate mark-up as theory would suggest

    Too Many Graduates? An Application of the Gottschalk-Hansen Model to Young British Graduates between 2001-2010

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    There is an apparent inconsistency in the existing literature on graduate employment in the UK. While analyses of rates of return to graduates or graduate mark-ups show high returns, suggesting that demand has kept up with a rapidly rising supply of graduates, the literature on over-education suggests that many graduates are unable to find employment in graduate jobs and the proportion over-educated has risen over time. Using a simple supply and demand model applied to UK data that defines graduate jobs in terms of the proportion of graduates and/or the graduate earnings mark-up within occupations, we find that there has been a shift in the likelihood of young British university graduates being employed in non-graduate jobs in the recent years of our analysis. This finding is in contrast to existing studies

    Rates of return to degrees across British regions

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    Earlier papers have found considerable heterogeneity in the returns to degrees in relation to subjects of study, degree classification and higher education institution. In this paper we examine heterogeneity of returns across British regions using the Labour Force Survey. We find substantial variations in the financial rewards available to graduates across regions with much higher returns in London and the South East than elsewhere, although adjusting for regional differences in the cost-of-living narrows such differences considerably. Decompositional analysis, after controlling for regional differences in both occupational and industrial structures, suggests that coefficient effects dominate composition effects, consistent with agglomeration effects being important. These results have implications for the recent changes to student funding in England, Scotland and Wales

    Computational models in the age of large datasets.

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    Technological advances in experimental neuroscience are generating vast quantities of data, from the dynamics of single molecules to the structure and activity patterns of large networks of neurons. How do we make sense of these voluminous, complex, disparate and often incomplete data? How do we find general principles in the morass of detail? Computational models are invaluable and necessary in this task and yield insights that cannot otherwise be obtained. However, building and interpreting good computational models is a substantial challenge, especially so in the era of large datasets. Fitting detailed models to experimental data is difficult and often requires onerous assumptions, while more loosely constrained conceptual models that explore broad hypotheses and principles can yield more useful insights.Charles A King TrustThis is the author accepted manuscript. The final version is available from Elsevier via http://dx.doi.org/10.1016/j.conb.2015.01.00

    Should I Stay or Should I Go? An Investigation of Graduate Regional Mobility in the UK and its Impact upon Early Career Earnings

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    This paper uses HESA data from the Destination of Leavers from Higher Education survey 2003/04 to examine whether more mobile students in terms of choice of institution and location of employment earn more than those who are less mobile. The clear finding is that mobility is associated with superior earnings outcomes, but principally through mobility as it relates to students extending their horizon of job search. A bivariate probit analysis also confirms that there is a positive relationship between regional mobility both in the choice of attending university and the choice of where to take up employment

    Conformations of N-Heterocyclic Carbene Ligands in Ruthenium Complexes Relevant to Olefin Metathesis

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    The structure of ruthenium-based olefin metathesis catalyst 3 and model π-complex 5 in solution and in the solid state are reported. The N-tolyl ligands, due to their lower symmetry than the traditional N-mesityl substituents, complicate this analysis, but ultimately provide explanation for the enhanced reactivity of 3 relative to standard catalyst 2. The tilt of the N-tolyl ring provides additional space near the ruthenium center, which is consistent with the enhanced reactivity of 3 toward sterically demanding substrates. Due to this tilt, the more sterically accessible face bears the two methyl substituents of the N-aryl rings. These experimental studies are supported by computational studies of these complexes by DFT. The experimental data provides a means to validate the accuracy of the B3LYP and M06 functionals. B3LYP provides geometries that match X-ray crystal structural data more closely, though it leads to slightly less (0.5 kcal mol^(−1)) accuracy than M06 most likely because it underestimates attractive noncovalent interactions

    Hypervelocity Stars from the Andromeda Galaxy

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    Hypervelocity stars (HVSs) discovered in the Milky Way (MW) halo are thought to be ejected from near the massive black hole (MBH) at the galactic centre. In this paper we investigate the spatial and velocity distributions of the HVSs which are expected to be similarly produced in the Andromeda galaxy (M31). We consider three different HVS production mechanisms: (i) the disruption of stellar binaries by the galactocentric MBH; (ii) the ejection of stars by an in-spiraling intermediate mass black hole; and (iii) the scattering of stars off a cluster of stellar-mass black holes orbiting around the MBH. While the first two mechanisms would produce large numbers of HVSs in M31, we show that the third mechanism would not be effective in M31. We numerically calculate 1.2*10^6 trajectories of HVSs from M31 within a simple model of the Local Group and hence infer the current distribution of these stars. Gravitational focusing of the HVSs by the MW and the diffuse Local Group medium leads to high densities of low mass (~ solar mass) M31 HVSs near the MW. Within the virialized MW halo, we expect there to be of order 1000 HVSs for the first mechanism and a few hundred HVSs for the second mechanism; many of these stars should have distinctively large approach velocities (< -500 km/s). In addition, we predict ~5 hypervelocity RGB stars within the M31 halo which could be identified observationally. Future MW astrometric surveys or searches for distant giants could thus find HVSs from M31.Comment: 14 pages, 6 figures, changed to match version accepted by MNRA

    Job Mismatches and Labour Market Outcomes: Panel Evidence on Australian University Graduates

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    The interpretation of graduate mismatch manifested either as overeducation or as overskilling remains problematical. This paper uses annual panel information on both educational and skills mismatches uniquely found in the HILDA survey to analyse the relationship of both mismatches with pay, job satisfaction and job mobility. We find that overeducation and overskilling are distinct phenomena with different labour market outcomes and that their combination results in the most severe negative labour market outcomes. Using panel methodology reduces strongly the size of many relevant coefficients, questioning previous cross-section results and suggesting the presence of considerable unobserved heterogeneity which varies by gender.overeducation, overskilling, wages, satisfaction, mobility
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