Teaching Strategies to Enhance Motor Skills Learning for Groups of Students: The Effects of Verbal and Visual Feedback on Performance in Pole Vault Practice

This paper contributes to enhancing a comparative study on a creative conduct of teaching method in physical education sessions. We search for determine the evolution of teacher representations related to the understanding of the particular practice of pole vaulting and its teaching by integrating a computer-video artifact into an educational environment. This study was done in two graduate classes of high school including (N = 44) students. These are two groups; aged between 15 and 18 (One group of students was provided with a verbal and gestural communication, while the other was asked to view an artifact video). The pole vole learning cycle consisted of 14 sessions, divided between two sessions per week. The findings were consistent with the difference between methods of teaching in line with tasks of learning. Through this experiment and lessons feedbacks, we have been able to conclude that the use of the Computer Communication Technology and precisely of the video image artifact, was source of progression of the motor learning for the large majority of the students from the all group study. This research is opened to understand and appreciate how to best design video lectures that encourage learning and developing knowledge. Keywords: physical education, artifact video, feedback, motor learning, skills DOI: 10.7176/JEP/10-7-06 Publication date:March 31st 201

Curriculum Method Grounded on Didactic Engineering to Expertise Physical Education Program Proposal

The purpose of this article is to identify and understand the reasons of actors of the neosphere and those of the scientific literature for the implementation of the pole vault practice in physical education program. The case of a didactic transposition for teaching pole vaulting practice at school is presented and the relationships between teachers and learners of this discipline are identified. Epistemological analyses of the practice of pole vaulting as well as a transpositive study of its implementation were useful to curry on the practice framework of the discipline. This background allowed quantitative and qualitative analyses for professional learning of pole vaulting. These allowed identifying global and generic trends of adapted and integrated study sections. Reports of crossing and separation between the practice of pole vaulting and the learner’s skills were highlighted. Difficulties related to contextual factors were identified. The synthetic didactical training analysis led to propose practical teaching programs for pole vaulting at school. Keywords: Curriculum, Physical Education and Sports, Pole Vaulting, Knowledge Taught, Learn to Teach

The Role of Social Capital in the Creation of Family-Owned Smes Empirical Study by Entrepreneurs Sfax Region

Entrepreneurship has widely studied the importance of the entrepreneur’s social capital in the acquisition of external resources, notably financial and informational resources, to lannch a business. This relational capital is often influenced by factors related to family and professional experience. In this sense, we provide an in-depth study of the development and amplification of relational capital of a project carrier in order to analyze how a network of entrepreneurial relationships could be equipped with the necessary means for the radiation of its company. This present work aims at exploring the distinctive elements of the family business’s social capital.In fact, a qualitative exploratory study was conducted with reference out to nine entrepreneurs in order to highlight these key points

ETV6-RUNX1 Rearrangement in Tunisian Pediatric B-Lineage Acute Lymphoblastic Leukemia

In this study, Forty-one out of fifty-seven Tunisian children with B-lineage acute lymphoblastic leukemia (B-ALL), and without cytogenetically detectable recurrent abnormalities at the time of the diagnosis, were evaluated by fluorescence in situ hybridization (FISH) for the t(12;21). This translocation leads ETV6-RUNX1 (previously TEL-AML1) fusion gene. 16 patients (28%) had ETV6-RUNX1 rearrangement. In addition to this rearrangement, two cases showed a loss of the normal ETV6 allele, and three others showed an extra signal of the RUNX1 gene. Seven patients without ETV6-RUNX1 rearrangement showed extra signals of the RUNX1 gene. One out of the 7 patients was also associated with a t(3;12) identified by FISH. This is the first Tunisian study in which we report the incidence of t(12;21) among childhood B-lineage ALL and in which we have found multiple copies of RUNX1. Finally, our findings confirm that additional or secondary genetic changes are commonly encountered in pediatric B-lineage ALL with ETV6-RUNX1 gene fusion which is envisaged to play a pivotal role in disease progression

Influence des traitements chimique et biologiques sur les propriétés mécaniques des bio-composites Cereplast-fibres d'Alfa

Ce travail est une étude comparative de l'effet des traitements des fibres d'Alfa sur le comportement mécanique des bio-composites Alfa/Cereplast. Diverses approches ont été utilisées, elles consistent à un rouissage dans l'eau salée, un traitement à l'eau chaude, un traitement à la soude et un traitement enzymatique (xylanase). Des Analyses biochimiques et morphologiques réalisées sur les fibres obtenues montrent l'augmentation du taux de cellulose, et la diminution de la taille des fibres traitées. Les bio-composites Alfa/Cereplast ont étés formulés à 20% de fibres en utilisant le procédé d'extrusions bi-vis suivi d'un moulage par injection. Les essais de traction montrent l'augmentation des modules d'Young et des résistances mécaniques en fonction du taux de cellulose et des dimensions des fibres. Le traitement enzymatique enregistre les meilleures propriétés mécaniques

The relationship between emotional intelligence, anxiety, and performance in physical education and sport students

Emotional intelligence (EI) has been recently the main target in research on sports psychology. The objectives of this study were to investigate the relation between self-report measures of emotional intelligence, pre-competitive anxiety, and performance among students during the physical education exam of the high school final year. This cross-sectional study was conducted on a sample of 350 students attending the physical education exam in the year 2021–2022. Analysis of the correlations between the scores of Emotional intelligence and anxiety showed that self-confidence was positively correlated with all dimensions of Emotional intelligence (Beta = 0.524; p = 0.000). Multivariate linear regression analysis showed that the most related items to performance were self-confidence in a positive direction (r = 0.56; p = 0.000) and negatively with somatic anxiety (r = −0, 39; p = 0.000). Considering the Emotional intelligence subscales, hetero-emotional management was significantly positively associated with performance (p = 0.000) however emotional perception was negatively correlated with performance (p = 0.003). These results demonstrate the importance of social and emotional learning programs for improving self-confidence and better management of emotions during physical education and sports

The role of the calmodulin-binding and calmodulin-like domains of the epidermal growth factor receptor in tyrosine kinase activation

The epidermal growth factor receptor (EGFR) harbors a calmodulin (CaM)-binding domain (CaM-BD) and a CaM-like domain (CaM-LD) upstream and downstream, respectively, of the tyrosine kinase (TK) domain. We demonstrate in this paper that deletion of the positively charged CaM-BD (EGFR/CaM-BD∆) inactivated the TK activity of the receptor. Moreover, deletion of the negatively charged CaM-LD (EGFR/CaM-LD∆), leaving a single negative residue (glutamate), reduced the activity of the receptor. In contrast, substituting the CaM-LD with a histidine/valine-rich peptide (EGFR/InvCaM-LD) caused full inactivation. We also demonstrated using confocal microscopy and flow cytometry that the chimera EGFR-green fluorescent protein (GFP)/CaM-BD∆, the EGFR/CaM-LD∆, and EGFR/InvCaM-LD mutants all bind tetramethylrhodamine-labelled EGF. These EGFR mutants were localized at the plasma membrane as the wild-type receptor does. However, only the EGFR/CaM-LD∆ and EGFR/InvCaM-LD mutants appear to undergo ligand-dependent internalization, while the EGFR-GFP/CaM-BD∆ mutant seems to be deficient in this regard. The obtained results and in silico modelling studies of the asymmetric structure of the EGFR kinase dimer support a role of a CaM-BD/CaM-LD electrostatic interaction in the allosteric activation of the EGFR TK.Consejería de Educación, Juventud y Deportes–Comunidad de Madrid,Grant/Award Number: B2017/BMD‐36involving contributions from the EuropeanFunds for Regional Development (EFRD) andthe Social European Fund (SEF); ConsejoSuperior de Investigaciones Científicas, Grant/Award Number: COOPA20053;Secretaría de Estado de Investigación, Desarrollo e Innovación, Grant/Award Number: SAF2014‐52048‐R; Agencia Española de Cooperación Internacional para el Desarrollo, Grant/Award Numbers: A/019018/08,A/5444/06, A/8197/0

ANALYSE SOCIOCULTURELLE DES JEUX SPORTIFS TRADITIONNELS TUNISIENS

CETTE RECHERCHE ANALYSE LA SIGNIFICATION SOCIOCULTURELLE DES JEUX SPORTIFS TRADITIONNELS TUNISIENS ELLE A ETE DEVELOPPEE EN REFERENCE D'UNE PART, A L'ANTHROPOLOGIE CULTURELLE ET SES OUTILS ET D'AUTRE PART A LA SOCIOLOGIE DE TERRAIN ET LEURS OUTILS FICHE D'OBSERVATION, OBSERVATION PARTICIPANTE, INTERVIEWS, NOTES DE TERRAIN, DOCUMENTS AUDIOVISUELS ET SOURCES BIBLIOGRAPHIQUES LES JEUX SPORTIFS TRADITIONNELS CONSTITUENT SANS DOUTE DES ELEMENTS ESSENTIELS DE LA TRADITION LUDIQUE DES TUNISIENS AVEC LE TEMPS, CES PRATIQUES LUDOSPORTIVES ONT EXPRIME UNE GAMME DE THEMES AU SEIN DE LA POPULATION NORD-AFRICAINE TELS PRIVILEGES, PASSIONS, INTERDICTIONS, RECOMPENSES, PUNITIONS, OUBLI, SOUVENIRS, RECONNAISSANCE SOCIALE, MARIAGE AVANT LA COLONISATION LES JEUX SPORTIFS TRADITIONNELS TUNISIENS ETAIENT TRES PRATIQUES ET TRES POPULAIRES ILS INTERESSAIENT LES HOMMES ET LES FEMMES, LES VIEUX ET LES JEUNES, LES RICHES ET LES PAUVRES, LES HOMMES POLITIQUES ET LES PAYSANS CES JEUX, CEPENDANT, ETAIENT ETROITEMENT LIES A D'AUTRES MANIFESTATIONS CULTURELLES, D'UNE PART LA RELIGION QUI LAISSE AUX JEUX TRADITIONNELS UN TERRAIN PRIVILEGIE D'EXPRESSION ET D'AUTRE PART, LES EXIGENCES EN MATIERE DE TRAVAIL DE LA TERRE CHEZ LES PAYSANS ET LEURS ENFANTS LIMITAIENT LA PRATIQUE DE CES JEUX PENDANT LES SAISONS DE PLUIES LA COLONISATION FRANCAISE DE 1881 A 1956 INTERDISAIT CES PRATIQUES QUI SONT TOMBEES COMPLETEMENT EN DESUETUDE. A L'INDEPENDANCE, LES JEUX TRADITIONNELS FURENT DE NOUVEAU REPRIS PAR DES PERSONNES AGEES, MAIS, CETTE FOIS, INFLUENCES PAR LES SPORTS OU LA CULTURE LUDIQUE A PERDU TOUTE PLACE LES JEUX TRADITIONNELS SONT LA PRINCIPALE ATTRACTION DANS LA PLUPART DES FESTIVALS D'ETE DANS LES VILLAGES OU SONT ORGANISES DES ETES DE MARIAGES, DE MOISSON QUI REUNISSENT UNE POPULATION DE SEXE ET D'AGE DIFFERENTS QUI SE LIVRENT A DES COURSES VILLAGEOISES DE CHEVAUX OU A PIEDS, DE TIR A LA CARABINE, DE TIR A LA CIBLE L'ORGANISATION ET LA SIGNIFICATION SYMBOLIQUE DE CES JEUX PERMETTENT D'ENTRETENIR UNE COHESION SOCIALE COMMUNAUTAIRE MARQUEE PAR LES TEMPS FORTS DES OBLIGATIONS COLLECTIVES, FAMILIALES ET RELIGIEUSES CES PRATIQUES SONT AUTANT D'INDICES QUI PERMETTENT DE CARACTERISER LA SOCIABILITE TRADITIONNELLE ET DE COMPRENDRE LA RUPTURE QU'INSTAURE LE PROCESSUS DE MODERNISATION DU SPORT INSTITUTIONNEL ACTUEL CETTE ETUDE EST UN PRECIEUX TEMOIGNAGE ETHNOGRAPHIQUE LIVRE SUR LA SOCIETE TUNISIENNE A TPARIS5-BU Saints-Pères (751062109) / SudocSudocFranceF