3,459,285 research outputs found
Mort pour la France: conflict and commemoration in France after the First World War
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Dilatation of a one-dimensional nonlinear crack impacted by a periodic elastic wave
The interactions between linear elastic waves and a nonlinear crack with
finite compressibility are studied in the one-dimensional context. Numerical
studies on a hyperbolic model of contact with sinusoidal forcing have shown
that the mean values of the scattered elastic displacements are discontinuous
across the crack. The mean dilatation of the crack also increases with the
amplitude of the forcing levels. The aim of the present theoretical study is to
analyse these nonlinear processes under a larger range of nonlinear jump
conditions. For this purpose, the problem is reduced to a nonlinear
differential equation. The dependence of the periodic solution on the forcing
amplitude is quantified under sinusoidal forcing conditions. Bounds for the
mean, maximum and minimum values of the solution are presented. Lastly,
periodic forcing with a null mean value is addressed. In that case, a result
about the mean dilatation of the crack is obtained.Comment: submitted to the SIAM J. App. Mat
Making global connections through dance film
Dance film communicates on a most basic level, eliminating barriers of language and geography. Through this accessible art form, one is able to experience a variety of global perspectives that tend to crystalize aspects of the universal human experience, promoting our sense of belonging to a global family
Resisting in France and la vie inventée
The daily experience of resistance in occupied France has often been missing from accounts of les années noires. Whether concerned with the deeds of prominent resisters or with the deconstruction of national myths, history has often obscured the experiences of the majority of the significant minority who opted to rebel against oppression. The first two years of the Occupation are often overshadowed by the move towards a unified movement and the increasingly combative stance of the Resistance of the following years. This may be partly related to the difficulty in placing such disparate realities into a coherent methodological framework. Equally, an analysis of events that possessed a surreal and almost dreamlike quality by those that witnessed them may have discouraged attempts to gain a deeper awareness of the phenomenon of resistance. In some respects, it did occupy a different sphere of reality for those that chose not to obey the armistice could be considered marginal in their behaviour and their memory remained so in post-war France as the demands of national reconstruction produced a dominant representation of the period which obscured the experience of the individual. This paper seeks to explore this sub-reality through an analysis of la vie inventée and its manifestation within the creation of an ésprit de résistance, the transmission of this consciousness and the inversion of the hegemony of the Vichy régime. Finally, it will question whether this notion was born from or conversely a prerequisite to La Résistance
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An isotope dilution model for partitioning of phenylalanine and tyrosine uptake by the liver of lactating dairy cows
An isotope dilution model to describe the partitioning of phenylalanine (PHE) and tyrosine (TYR) in the bovine liver was developed. The model comprises four intracellular and six extracellular pools and various flows connecting these pools and external blood. Conservation of mass principles were applied to generate the fundamental equations describing the behaviour of the system in the steady state. The model was applied to datasets from multi-catheterised dairy cattle during a constant infusion of [1-13C] phenylalanine and [2,3,5,6-2H] tyrosine tracers. Model solutions described the extraction of PHE and TYR from the liver via the portal vein and hepatic artery. In addition, the exchange of free PHE and TYR between extracellular and intracellular pools was explained and the hydroxylation of PHE to TYR was estimated. The model was effective in providing information about the fates of PHE and TYR in the liver and could be used as part of a more complex system describing amino acid metabolism in the whole animal
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