Emotions in Team Contact Sports: A Systematic Review

International audienceThis study systematically reviewed the literature on the emotional processes associated with performance in team contact sports. To consider the entire emotional spectrum, Lazarus’s (1999) cognitive motivational relational theory was used as a guiding framework. An electronic search of the literature identified 48 of 5,079 papers as relevant. Anxiety and anger were found to be the most common emotions studied, potentially due to the combative nature of team contact sports. The influence of group processes on emotional experiences was also prominent. The findings highlight the need to increase awareness of the emotional experience in team contact sports and to develop emotion-specific regulation strategies. Recommendations for future research include exploring other emotions that might emerge from situations related to collisions (e.g., fright) and emotions related to relationships with teammates (e.g., guilt and compassion)

Football fan relationships with their national associations: a trans-European perspective

Football fan relationships with their national associations: a trans-European perspectiv

Appetite for or resistance to consumption relationships? A trans-European perspective on the marketization of football fan relationships

Although most sport organisations are encouraged to better manage the relationships they maintain with fans, little is still known about the types of relationships that fans want to establish with sport organisations. Also, as most suggested management and marketing practices come from professional sport organisations and European contexts, it is questionable whether they can apply to all sports organisations, and whether they are received in the same way by diverse fans from various socio-cultural contexts. Thus, the study aimed to explore football fans’ relational expectations towards their national football association across Europe and attitudes towards this marketization. Focus groups and individual interviews were conducted with several casual and die-hard fans from three European countries chosen for their heterogeneity: Armenia, Lithuania and England. Overall, and possibly in contradiction with numerous publications dealing with club football, the fans from the three countries did not express clear opposition or resistance towards the marketization of their relationships towards their national teams and associations. English fans seemed quite neutral or indifferent although Armenian and Lithuanian fans presented many characteristics of brandom demonstrating an appetite for this marketization

Marketization of football fan relationships in Europe: appetence, indifference or resistance?

Marketization of football fan relationships in Europe: appetence, indifference or resistance

Capsules hélicoïdales auto-organisées par repliement d'oligoamides aromatiques pour la reconnaissance moléculaire

La reconnaissance moléculaire constitue l une des questions fondamentales les plus discutées dans le domaine de la chimie supramoléculaire. Cette thèse présente la conception, la synthèse et l étude des propriétés de capsules hélicoïdales auto-organisées par repliement d oligoamides aromatiques. Ces récepteurs sont constitués d une chaîne oligomérique se repliant en hélice et comprenant une séquence d unités codant pour des diamètres différents. Le repliement de l oligomère donne naissance à une cavité pouvant accueillir des molécules invitées. La grande modularité des séquences, permettant une évolution contrôlée des structures des foldamères, donne lieu à la reconnaissance sélective et anticipée de substrats d intérêts biologiques. Le phénomène d encapsulation a été mis en évidence en solution par spectroscopie RMN et CD, et dans le solide par diffraction des rayons X.Molecular recognition is one of the major challenges of supramolecular chemistry. Here, we present the design, synthesis and study of helical capsules properties self-organised by aromatic oligoamide folding. These receptors consist of oligomeric chains that fold into a helical conformation and comprise of a sequence of units which code for different diameters. Oligomeric folding defines a cavity which can recognize guests. The great modularity of the sequences has allowed a controlled evolution of foldamer structure resulting in the selective and predict recognition of biological substrates. The phenomenon of encapsulation was demonstrated in solution by NMR and CD spectroscopy and in the solid state by X-ray diffraction.BORDEAUX1-Bib.electronique (335229901) / SudocSudocFranceF

Thrombin modifies growth, proliferation and apoptosis of human colon organoids: a protease-activated receptor 1- and protease-activated receptor 4-dependent mechanism

International audienceExperimental Approach: Crypts were isolated from human colonic resections and cultured for 6 days, forming human colon organoids. Cultured organoids were exposed to 10 and 50 mU·mL−1 of thrombin, in the presence or not of protease‐activated receptor (PAR) antagonists. Organoid morphology, metabolism, proliferation and apoptosis were followed.Key Results: Thrombin favoured organoid maturation leading to a decreased number of immature cystic structures and a concomitant increased number of larger structures releasing cell debris and apoptotic cells. The size of budding structures, metabolic activity and proliferation were significantly reduced in organoid cultures exposed to thrombin, while apoptosis was dramatically increased. Both PAR1 and PAR4 antagonists inhibited apoptosis regardless of thrombin doses. Thrombin‐induced inhibition of proliferation and metabolic activity were reversed by PAR4 antagonist for thrombin's lowest dose and by PAR1 antagonist for thrombin's highest dose.Conclusions and Implications: Overall, our data suggest that the presence of thrombin in the vicinity of human colon epithelial cells favours their maturation at the expense of their regenerative capacities. Our data point to thrombin and its two receptors PAR1 and PAR4 as potential molecular targets for epithelial repair therapies

CorteXlab: A Facility for Testing Cognitive Radio Networks in a Reproducible Environment

International audience—While many theoretical and simulation works have highlighted the potential gains of cognitive radio, several technical issues still need to be evaluated from an experimental point of view. Deploying complex heterogeneous system scenarios is tedious, time consuming and hardly reproducible. To address this problem, we have developed a new experimental facility, called CorteXlab, that allows complex multi-node cognitive radio scenarios to be easily deployed and tested by anyone in the world. Our objective is not to design new software defined radio (SDR) nodes, but rather to provide a comprehensive access to a large set of high performance SDR nodes. The CorteXlab facility offers a 167 m 2 electromagnetically (EM) shielded room and integrates a set of 24 universal software radio peripherals (USRPs) from National Instruments, 18 PicoSDR nodes from Nutaq and 42 IoT-Lab wireless sensor nodes from Hikob. CorteXlab is built upon the foundations of the SensLAB testbed and is based the free and open-source toolkit GNU Radio. Automation in scenario deployment, experiment start, stop and results collection is performed by an experiment controller, called Minus. CorteXlab is in its final stages of development and is already capable of running test scenarios. In this contribution, we show that CorteXlab is able to easily cope with the usual issues faced by other testbeds providing a reproducible experiment environment for CR experimentation

Prediction Of Beef Fatty Acid Composition Using Near Infrared Spectroscopy: Effects Of Tissue And Sample Preparations

International audienceThe aims of the study were to determine the best site of bovine carcass for predicting fatty acid (FA) composition using a NIRS (near infrared spectroscopy) portable equipment and to study the effect of different methods of sample preparation. 78 animals were sampled from different types and rearing systems. Seven tissues (Longissimus thoracis, Infraspinatus, Diaphragma, Rectus abdominis, shoulder subcutaneous adipose tissue (SAT), intercostal SAT and intermuscular fat at the 5th rib) were measured after sampling and grinding in liquid nitrogen. The effect of samples preparation were measured on carcass (C0), muscle without grinding (B0), ground with a meat chopper (B1), ground with a knife mill (B2) on RA muscle. FA composition was assessed using gas chromatograph and the spectra were measured at wavelengths between 350 and 2500 nm. For adipose tissue, FA were not correctly predicted from NIRS. However, predictions were more satisfactory for the major FA (C16:0, C18:0, C18:1d9c), total saturated and monounsaturated FA of muscles. The results show a better prediction of FA composition concomitant with an increased gradient of sample homogenization. For other FA and especially polyunsaturated fatty acids, the performances were not satisfactory for quantitative purposes whatever the grinding method

Femmes et hommes face aux grossesses non prévues au Maroc et au Sénégal

Cet article étudie la manière dont les femmes ou les couples gèrent les grossesses non prévues dans les capitales du Maroc et du Sénégal (Rabat et Dakar), deux pays soumis à des règles strictes en matière de sexualité des célibataires. Nous analysons les logiques sociales et individuelles qui prévalent à l'annonce d'une grossesse inattendue et la manière dont se prennent les décisions qui vont aboutir à la poursuite de cette grossesse ou à son interruption. Nous nous basons sur des données qualitatives tirées d'un programme financé par l'Union Européenne entre 2005 et 2009, sur l'usage de la contraception d'urgence dans les villes africaines. Nos résultats montrent qu'en dépit de programmes de planification familiale plus performants dans leur pays, les femmes de Rabat vivent leur entrée en sexualité dans des conditions difficiles. Si à Dakar la chasteté avant le mariage est prônée, le non-respect de cette règle entraîne des sanctions beaucoup moins sévères qu'au Maroc. Le choix de l'avortement en cas de grossesse non prévue évolue avec le cycle de vie des individus et selon le stade de la relation. Une pratique envisageable à un moment donné, ne l'est plus forcément à d'autres moments de la relation. Enfin, dans les deux villes, nos données révèlent une forte implication des familles dans la gestion de la formation des couples et de leur fécondité. Cette tendance apparaît cependant plus exacerbée au Maroc où les familles se mobilisent parfois âprement pour obliger ou interdire un avortement