Just because he’s black’ : identity construction and racial humour in a German U-19 football team

Despite its status as the global game, football has been noted for having problems with racism, and yet relatively little research has actually looked at this topic from a discourse analytical perspective. This paper addresses this gap by exploring the use of racial humour in a German male under-19 football team. Drawing on audio-recordings of interactions among the players on the sideline and substitutes’ bench during, before and after football matches and training, as well as interviews with players, and team observations, we analyse and critically discuss some of the ways in which team members make humorous comments about specific racial, ethnic or national groups when constructing and expressing team membership and negotiating their own and others’ identities within the team. Findings illustrate that, on the one hand, team members express their appreciation of the cultural diversity within their team in an attempt to maintain or enhance team cohesion, but on the other hand, they often use racial humour to create distinctive subgroups thereby fragmenting the team and assigning and foregrounding racial identities

Crystal structure and magnetic properties of some MM’X pnictides investigated by neutron diffraction and magnetisation measurements

In order to analyse the magnetic structure and to point out potential relationships between the structural parameters and magnetic behaviour, an in situ powder diffraction experiments were investigated for three specific compounds and systems MM'X. The study was carried out also by using magnetisation measurements. These investigations are supported by electronic structural calculations analyses carried out in parallel to this work.In order to analyse the magnetic structure and to point out potential relationships between the structural parameters and magnetic behaviour, an in situ powder diffraction experiments were investigated for three specific compounds and systems MM'X. The study was carried out also by using magnetisation measurements. These investigations are supported by electronic structural calculations analyses carried out in parallel to this work

Exploring the processes of emergent leadership in a netball team. Providing empirical evidence through discourse analysis

In line with recent developments in leadership research which conceptualise leadership as a discursive and collaborative process rather than a set of static attributes and characteristics displayed by individuals, this paper explores some of the discursive processes through which leadership emerges in a sports team. Drawing on over ten hours of naturally occurring interactions among the players of a women’s netball team in the UK, and applying the concepts of deontic and epistemic status and stance, we identify and describe some of the specific processes through which leadership is claimed and assigned, as well as rejected, passed on, and eventually accepted by different team members at different points throughout an interaction. While the processes outlined in our analysis contribute to theoretical discussions regarding the notion of emergent leadership, this paper also demonstrates the benefits of taking a discourse analytical approach to leadership, and outlines how such an approach enables researchers to empirically capture emergent leadership in situ

The Mythology of Game Theory

Non-cooperative game theory is at its heart a theory of cognition, specifically a theory of how decisions are made. Game theory\u27s leverage is that we can design different payoffs, settings, player arrays, action possibilities, and information structures, and that these differences lead to different strategies, outcomes, and equilibria. It is well-known that, in experimental settings, people do not adopt the predicted strategies, outcomes, and equilibria. The standard response to this mismatch of prediction and observation is to add various psychological axioms to the game-theoretic framework. Regardless of the differing specific proposals and results, game theory uniformly makes certain cognitive assumptions that seem rarely to be acknowledged, much less interrogated. Indeed, it is not widely understood that game theory is essentially a cognitive theory. Here, we interrogate those cognitive assumptions. We do more than reject specific predictions from specific games. More broadly, we reject the underlying cognitive model implicitly assumed by game theory

Risk factors for non-adherence to cART in immigrants with HIV living in the Netherlands: Results from the Rotterdam ADherence (ROAD) project

In the Netherlands, immigrant people living with HIV (PLWH) have poorer psychological and treatment outcomes than Dutch PLWH. This cross-sectional field study examined risk factors for non-adherence to combination Antiretroviral Therapy (cART) among immigrant PLWH. First and second generation immigrant PLWH attending outpatient clinics at two HIV-treatment centers in Rotterdam were selected for this study. Socio-demographic and clinical characteristics for all eligible participants were collected from an existing database. Trained interviewers subsequently completed questionnaires together with consenting participants (n = 352) to gather additional data on socio-demographic characteristics, psychosocial variables, and self-reported adherence to cART. Univariable and multivariable logistic regression analyses were conducted among 301 participants who had used cART 6 months prior to inclusion. Independent risk factors for self-reported non-adherence were (I) not having attended formal education or only primary school (OR = 3.25; 95%CI: 1.28-8.26, versus University), (II) experiencing low levels of social support (OR = 2.56; 95%CI: 1.37-4.82), and (III) reporting low treatment adherence self-efficacy (OR = 2.99; 95%CI: 1.59-5.64). Additionally, HIV-RNA >50 copies/ml and internalized HIV-related stigma were marginally associated (P<0.10) with non-adherence (OR = 2.53; 95%CI: 0.91-7.06 and OR = 1.82; 95%CI: 0.97-3.43). The findings that low educational attainment, lack of social support, and low treatment adherence self-efficacy are associated with non-adherence point to the need for tailored supportive interventions. Establishing contact with peer immigrant PLWH who serve as role models might be a successful intervention for this specific population

National interest to global reform: patterns of reasoning in British foreign policy discourse

Discussion of the national interest often focuses on how Britain's influence can be maximized, rather than on the goals that influence serves. Yet what gives content to claims about the national interest is the means-ends reasoning which links interests to deeper goals. In ideal-typical terms, this can take two forms. The first, and more common, approach is conservative: it infers national interests and the goals they advance from existing policies and commitments. The second is reformist: it starts by specifying national goals and then asks how they are best advanced under particular conditions. New Labour's foreign policy discourse is notable for its explicit use of a reformist approach. Indeed, Gordon Brown's vision of a 'new global society' not only identifies global reform as a key means of fulfilling national goals, but also thereby extends the concept of the national interest well beyond a narrow concern with national security

Tumor-derived exosomes confer antigen-specific immunosuppression in a murine delayed-type hypersensitivity model

Exosomes are endosome-derived small membrane vesicles that are secreted by most cell types including tumor cells. Tumor-derived exosomes usually contain tumor antigens and have been used as a source of tumor antigens to stimulate anti-tumor immune responses. However, many reports also suggest that tumor-derived exosomes can facilitate tumor immune evasion through different mechanisms, most of which are antigen-independent. In the present study we used a mouse model of delayed-type hypersensitivity (DTH) and demonstrated that local administration of tumor-derived exosomes carrying the model antigen chicken ovalbumin (OVA) resulted in the suppression of DTH response in an antigen-specific manner. Analysis of exosome trafficking demonstrated that following local injection, tumor-derived exosomes were internalized by CD11c+ cells and transported to the draining LN. Exosome-mediated DTH suppression is associated with increased mRNA levels of TGF-β1 and IL-4 in the draining LN. The tumor-derived exosomes examined were also found to inhibit DC maturation. Taken together, our results suggest a role for tumor-derived exosomes in inducing tumor antigen-specific immunosuppression, possibly by modulating the function of APCs. © 2011 Yang et al

Belief aggregation in financial markets and the nature of price fluctuations

We present a model of financial markets, where the belief of the market, expressed by a normal distribution over asset returns, is formed by aggregating in a dynamically consistent way individual subjective beliefs of the market participants, which are likewise assumed to follow normal distributions. We apply this model to a market of traders with standard CARA preferences with the aim of identifying an intrinsic source of price fluctuations. We find that asset prices depend on both Gaussian parameters mean and variance of the market belief, but argue that the latter changes slower than the former. Consequently, price fluctuations are dominated by the covariance matrix of the market participants’ subjective beliefs about expected asset returns

Growth factor stimulation of cardiomyocytes induces changes in the transcriptional contents of secreted exosomes

Exosomes are nano-sized extracellular vesicles, released from various cells, which can stimulate or repress responses in targets cells. We recently reported that cultured cardiomyocytes are able to release exosomes and that they, in turn, are involved in facilitating events in target cells by alteration of gene expression. We investigated whether external stimuli of the cardiomyocyte might influence the transcriptional content of the released exosomes.Exosomes were isolated from media collected from cultured cardiomyocytes (HL-1) with or without growth factor treatment (TGF-&#x03B2;2 and PDGF-BB), with a series of differential centrifugations, including preparative ultracentrifugation and separation with a sucrose gradient. The exosomes were characterized with dynamic light scattering (DLS), electron microscopy (EM) and Western blot and analyzed with Illumina whole genome microarray gene expression.The exosomes were rounded in shape and had an average size of 50&#x2013;90 nm in diameter with no difference between treatment groups. Analysis of the mRNA content in repeated experiments conclusively revealed 505 transcripts in the control group, 562 in the TGF-&#x03B2;2-treated group and 300 in the PDGF-BB-treated group. Common transcripts (217) were found in all 3 groups.We show that the mode of stimulation of parental cells affects the characteristics of exosomes released. Hence, there is a difference in mRNA content between exosomes derived from cultured cardiomyocytes stimulated, or not stimulated, with growth factors. We also conclude that all exosomes contain a basic package consisting of ribosomal transcripts and mRNAs coding for proteins with functions within the energy supply system. To access the supplementary material to this article, please see Supplementary files under Article Tools online