Non commutative Lp spaces without the completely bounded approximation property

For any 1\leq p \leq \infty different from 2, we give examples of non-commutative Lp spaces without the completely bounded approximation property. Let F be a non-archimedian local field. If p>4 or p<4/3 and r\geq 3 these examples are the non-commutative Lp-spaces of the von Neumann algebra of lattices in SL_r(F) or in SL_r(\R). For other values of p the examples are the non-commutative Lp-spaces of the von Neumann algebra of lattices in SL_r(F) for r large enough depending on p. We also prove that if r \geq 3 lattices in SL_r(F) or SL_r(\R) do not have the Approximation Property of Haagerup and Kraus. This provides examples of exact C^*-algebras without the operator space approximation property.Comment: v3; Minor corrections according to the referee

Turbulent jet simulation using high-order DG methods for aeroacoustics analysis

In this work, a high-order discontinuous Galerkin (DG) method is used to perform a large-eddy simulation (LES) of a subsonic isothermal jet at high Reynolds number Re D = 10^6 on a fully un-structured mesh. Its radiated acoustic field is computed using the Ffowcs Williams and Hawkings formulation. In order to assess the accuracy of the DG method, the simulation results are compared to experimental measurements and a reference simulation based on a finite volume method. The comparisons are made on the flow quantities (mean, rms and spectra) and pressure far field (rms and spectra)

The early stages of heart development: insights from chicken embryos

The heart is the first functioning organ in the developing embryo and the detailed understanding of the molecular and cellular mechanisms involved in its formation provides insights into congenital malformations affecting its function and therefore the survival of the organism. Because many developmental mechanisms are highly conserved, it is possible to extrapolate from observations made in invertebrate and vertebrate model organisms to human. This review will highlight the contributions made through studying heart development in avian embryos, particularly the chicken. The major advantage of chick embryos is their accessibility for surgical manipulations and functional interference approaches, both gain- and loss-of-function. In addition to experiments performed in ovo, the dissection of tissues for ex vivo culture, genomic or biochemical approaches, is straightforward. Furthermore, embryos can be cultured for time-lapse imaging, which enables tracking of fluorescently labeled cells and detailed analyses of tissue morphogenesis. Owing to these features, investigations in chick embryos have led to important discoveries, often complementing genetic studies in mouse and zebrafish. As well as including some historical aspects, we cover here some of the crucial advances made in understanding of early heart development using the chicken model

The health and wellbeing of gypsies and travellers in settled housing: A narrative review of the evidence and policy

Gypsies and Travellers have historically been afforded low priority in research into their health and wellbeing despite evidence of negative social and health and wellbeing experiences in daily living. This article presents a narrative review of the literature around the health and wellbeing of Gypsies and Travellers in settled housing. From the evidence, two themes emerge. The first one demonstrates that the experience of settled housing is often detrimental to the health and wellbeing of Gypsies and Travellers. The second theme suggests that Gypsies and Travellers often attempt to minimise the negative impacts of the shift into settled housing to assist in enhancing health and wellbeing. The article then proceeds to suggest how health and wellbeing researchers and social policy makers can further develop the evidence base and the policy and practices responses required as a result

The emergence of wellbeing in late modern capitalism: Theory, research and policy responses

This article outlines a historical and theoretical framework that traces the historical and discursive emergence of the concept of wellbeing as a consequence of the decline of traditional capitalism and modernity and the subsequent shift to a late modern capitalist economy. On the structural level, this shift precipitates a new type of consumption that not only characterises the productive and physical capacity of the economy and products, but cascades into the social construction of multiple discursive, symbolic and cultural products, images, and forms of information and meanings, from wellbeing emerges. This process has consequences for individuals in late modernity as they navigate through a world where life-worlds, security and relationships are disrupted and require new forms of revising and responding to change. Consequently, wellbeing further establishes a means of responding and adapting to, for instance, changing lives, circumstances, security, and happiness. The emergence of wellbeing as a significant component of social policy discourses has also precipitated debate around the types of research and policy responses relevant to the study of wellbeing. As a result, the article also prescribes an epistemology founded upon a 'cultural' and 'relational' approach that can effectively underpin research and social policies relevant to wellbeing in late modern capitalism

LONELINESS AND YOUNG PEOPLE EXPERIENCING MENTAL HEALTH DIFFICULTIES: EVIDENCE AND FURTHER RESEARCH

This article reviews the current evidence base around loneliness; mental health, and young people, and the challenges identified in conducting research in this area. It then proceeds to consider the scope of further research and its impact upon policy and practice; in terms of inclusion of more enhanced theoretical frameworks; use of qualitative research and methodologies and impact of research upon policy and practice and enablement of more effective policies and interventions

Does Schooling Pay? Evidence from China

The effect of education on wages has been a widely explored topic. This paper will contribute to the existing literature by studying the causal effect of education on wages in China, a context which has been far less studied. China's compulsory education laws and minimum age labor laws provide potentially exogenous changes in educational attainment. The first goal of this paper will be to estimate the private return to education in China (the effect of an extra year of individual educational attainment on wages). Using China's compulsory education law as an instrument for individual educational attainment, we fail to find a statistically significant return on education in aggregate. However, using China's minimum age labor law as an instrument, we find that an increase in individual educational attainment by one year raises earnings by about 9%