Human rights education and peacebuilding: a comparative study     

Daniela Bramwell 《Compare》2017,47(1):139-140

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Dribbling determinants in sub-elite youth soccer players     

Matteo Zago  Andrea Gianluca Piovan  Isabella Annoni  Daniela Ciprandi  F. Marcello Iaia 《Journal of sports sciences》2016,34(5):411-419

Dribbling speed in soccer is considered critical to the outcome of the game and can assist in the talent identification process. However, little is known about the biomechanics of this skill. By means of a motion capture system, we aimed to quantitatively investigate the determinants of effective dribbling skill in a group of 10 Under-13 sub-elite players, divided by the median-split technique according to their dribbling test time (faster and slower groups). Foot-ball contacts cadence, centre of mass (CoM), ranges of motion (RoM), velocity and acceleration, as well as stride length, cadence and variability were computed. Hip and knee joint RoMs were also considered. Faster players, as compared to slower players, showed a 30% higher foot-ball cadence (3.0 ± 0.1 vs. 2.3 ± 0.2 contacts · s^?1, P < 0.01); reduced CoM mediolateral (0.91 ± 0.05 vs. 1.14 ± 0.16 m, P < 0.05) and vertical (0.19 ± 0.01 vs. 0.25 ± 0.03 m, P < 0.05) RoMs; higher right stride cadence (+20%, P < 0.05) with lower variability (P < 0.05); reduced hip and knee flexion RoMs (P < 0.05). In conclusion, faster players are able to run with the ball through a shorter path in a more economical way. To effectively develop dribbling skill, coaches are encouraged to design specific practices where high stride frequency and narrow run trajectories are required.  相似文献   

Two-Year-Old Children's Sensitivity to a Parent's Knowledge State When Making Requests     

Daniela K. O'Neill 《Child development》1996,67(2):659-677

These studies examined whether toddlers take their communicative partners' knowledge states into account when communicating with them. In Study 1 , 16 2-year-old children (mean age 2-7) had to ask a parent for help in retrieving a toy. On each trial, a child was first introduced to a new toy that was then placed in 1 of 2 containers on a high shelf. The parent either witnessed these events along with the child or did not because she or he had left the room or had covered her or his eyes and ears. As predicted, when asking for help in retrieving the toy, children significantly more often named the toy, named its location, and gestured to its location when a parent had not witnessed these events than when she or he had. In Study 2, 16 2-year-old children (mean age 2-3) had to ask a parent for help in retrieving a sticker dropped into 1 of 2 identical containers placed out of reach in the far corners of a table. The parent either witnessed, along with the child, which container the sticker was dropped into or did not because her or his eyes were closed. In their requests for help, young 2-year-old children gestured to the sticker's location significantly more often when the parent did not know its location than when she or he did. The implications of these findings for current characterizations of 2-year-old children's ability to assess the knowledge of others is discussed.  相似文献   

Preschool children’s conceptions of water,molecule, and chemistry before and after participating in a playfully dramatized early childhood education activity     

Åkerblom  Annika  Součková  Daniela  Pramling  Niklas 《Cultural Studies of Science Education》2019,14(4):879-895

The present study reports an empirical investigation into concept formation of young children. Based on interviews conducted before and after participating in a playfully enacted chemistry lesson at a culture center, it is analyzed how 6-year-old children conceptualize water, molecule, and chemistry. Theoretically, the study is informed by Vygotsky’s cultural-historical perspective on concept formation. The empirical data consist of pre- and post-interviews with children and documentation of their participation in the intermediate activity. This documentation is used in the post-interviews as a mutual ground for talking with the children about what they remember and how they understand the activity they participated in and what the activity intended to illustrate. The results are presented in terms of three inductively generated categories: ‘everyday’, ‘experientially-based’, and ‘generalized experiences’ concepts, respectively. The implications of these findings for early childhood chemistry (science) education are discussed.

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Les graphes de flux dans l'enseignement secondaire     

Emma Castelnuovo  Daniela et Claudio Gori-Giorgi 《Educational Studies in Mathematics》1973,5(1):467-492

Sans résuméTravail effectué dans le cadre du groupe de recherche en didactique de la mathématique du Conseil National des Recherches.  相似文献   

Plegaria a un Niño Dormido: Iconografia del Ritual Funerario del Angelito en Meéxico     

Daniela Marino 《Journal of American culture (Malden, Mass. : 2003)》1997,20(2):45-49

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Empowering visuo-spatial ability in primary school: results from a follow-up study     

Maria Chiara Fastame  Daniela Callai 《Educational Psychology in Practice》2015,31(1):86-98

The current study was primarily aimed at verifying the effect of a combined computer-assisted and pencil-and-paper training that was developed to empower visuo-spatial abilities in primary school pupils. One hundred and twenty third grade (mean average: eight years old) and fourth grade (mean age: nine years old) students attending several Italian primary schools were presented with several tests of the Primary Mental Abilities (PMA) battery by Thurstone and Thurstone. Of these, 64 children underwent the training “Recovery in visuo-spatial abilities” developed by Fastame and Antonini for 15 weekly sessions. The remaining students were assigned to the control group. Post-test scores and a follow-up assessment after six months by the end of the training highlight the positive impact of the intervention in enhancing visuo-spatial abilities.  相似文献   

Community Networks: Rules of Behavior and Social Structure     

Fiorella De Cindio  Oliverio Gentile  Philip Grew  Daniela Redolfi 《The Information Society》2003,19(5):395-406

This article investigates the intertwining relationships between the Gemeinschaft and the Gesellschaft dimension of a community network (CN)—that is, of a virtual community whose members' common interest is a locality, in our case the city of Milan, Italy. The article looks through the experience of the last 7 years of life on RCM—the Milan Community Network—to reflect on the role that the sharing of rules of behavior has on the evolution of social structure in a virtual community. It identifies three phases of development—the design phase, the first growth phase, and the most recent phase—and presents the social structure set up to guarantee governance of the CN. The conclusions show that the third phase is not an actual stable state, as the continuous evolution of the societal and technological context requires continuous redesign of the CN itself in order to meet the renewed demands of a new context.  相似文献   

The effects of a free school choice policy on parents’ school choice behaviour     

Herbert Altrichter  Johann Bacher  Martina Beham  Gertrud Nagy  Daniela Wetzelhütter 《Studies in Educational Evaluation》2011,37(4):230-238

Recently, European school systems have seen various attempts to ‘modernise’ their governance. Market and competition oriented reforms have not been central to governance innovation strategies in German speaking countries, however, their number and relevance is rising in recent years. A free school choice policy which abolishes “school districts” which legally define fixed school catchment areas was introduced in the school year of 2007/2008 in the Austrian city of Linz.The effects of the implementation of this policy on the primary school sector were studied by a standardised questionnaire administered to a representative sample of 3425 parents of five age groups of primary school children. The return rate was about 55%. By special measures during data collection a satisfactory representation of parents with migrant background was achieved.Three questions are discussed in the paper: (1) Is there a rise in segregation in schools as a result of free choice policy? (2) Is there a change in the composition of the student population in different schools as a result of free choice policy? (3) Is there a change in parent school choice behaviour of as a result of free choice policy?Our data indicates that segregation in primary schools with respect to ethnic and social family characteristics increases after the policy implementation, but the sample size is too small to find significant results. In addition, no significant change is observed in the social composition of schools. In accordance with the previous findings no significant modifications of choice behaviour occur for different ethnic or social groups after free choice. However changes in choice motives can be observed.  相似文献   

Reporting Mobile Social Media Use: How Survey and Experience Sampling Measures Differ     

Teresa K. Naab  Veronika Karnowski  Daniela Schlütz 《Communication methods and measures》2019,13(2):126-147

Quantifying the ubiquitous, ephemeral, and highly diverse patterns of mobile social media (MSM) use is a challenge for communication research. Most researchers employ retrospective survey measurement, thus depending on the accuracy of users’ memories and generalizations. Alternatively, some researchers rely on in-situ measurement, being less dependent on users’ memories and generalizations, but requiring random situation samples. To assess differences and similarities between these two measurement approaches we analyzed whether characteristics (duration and frequency of a usage episode, habit, elaboration, and gratifications) of MSM use (regarding Facebook, WhatsApp, and YouTube) vary between retrospective survey and mobile experience sampling measurement. We observe a consistent pattern of higher estimates in retrospect as compared to individual averages of in-situ reports. The absolute magnitude of these differences varies considerably between platforms and characteristics studied. Nonetheless, for most constructs and platforms we find low significant positive correlations between retrospective and aggregated in-situ values.  相似文献