A FORGE OF CONSENSUS     

Ricardo Zugasti 《Media History》2013,19(2):207-217

The Spanish transition to democracy constituted an exceptional journalistic period which started with the death of the dictator Franco in 1975 and finished in 1978, the year in which a new democratic Constitution, currently in force, was approved by referendum. During those years, the Spanish political system changed radically from a dictatorship to a full democracy similar to the democracies enjoyed by Western European countries. This article proves the hypothesis that the majority of newspapers supported the main guidelines of political reform and the strategy of consensus led firstly by the francoist reformist elite and by the opposition political parties afterwards. The research method is a content analysis focused on the introduction of democratic values in newspaper editorials and applied to twelve newspaper titles which covered the ideological spectrum within the Spanish journalistic scene. This piece of research could be likewise considered as a contribution to the particular histories of the analysed dailies during those critical years.  相似文献   

Ritual Television     

José Ricardo P. Carvalheiro 《Media History》2013,19(2):150-161

As in other southern European countries, television was introduced in Portugal in the second half of the 1950s through the founding of a public broadcasting station. Reception was implemented very gradually over the 1960s, by conspicuously developing collective ways of viewing. In this text, we draw on oral history in order to retrace relevant habits, events and content especially for women, a particular type of audience in the markedly patriarchal context of the Estado Novo dictatorship. Within the context of collective reception of early television in Portugal, we highlight a type of experience that was particularly significant for some female audiences: the reception of Catholic transmissions. The concepts of hegemony, ritual and everyday practices assist in the analysis of such memories. These conspicuous television rituals seemed to regulate female practices, but they could also offer women some opportunities for new experiences.  相似文献   

RACIAL EXCLUSION AND DISCRIMINATION IN THE PUBLIC SCHOOLS     

Ricardo L. Garcia 《Review of Education, Pedagogy & Cultural Studies》2013,35(4):480-490

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Response–food delay gradients for lever pressing and schedule-induced licking in rats     

Ricardo Pellón  Ángeles Pérez-Padilla 《Learning & behavior》2013,41(2):218-227

Eight food-deprived Wistar rats developed stable patterns of lever pressing and licking when exposed to a fixed-time 30-s schedule of food pellet presentation. The rats were trained to lever press by presenting the lever 10 s before the programmed food delivery, with the food pellet being delivered immediately upon a lever press. The operant contingency was then removed and the lever was inserted through the entire interfood interval, being withdrawn with food delivery and reinserted 2 s later. On successive phases of the study, a protective contingency postponed food delivery if responses (lever presses or licks) occurred within the last 1, 2, 5, 10, 20, or 25 s of the interfood interval. Lever pressing was reduced at much shorter response–food delays than those that reduced licking. These results demonstrate that reinforcement contributes to the maintenance of different response patterns on periodic schedules, and that different responses are differentially sensitive to delays.  相似文献   

A spectral analysis of team dynamics and tactics in Brazilian football     

Felipe Arruda Moura  Luiz Eduardo Barreto Martins  Ricardo O. Anido  Paulo Régis C. Ruffino  Ricardo M. L. Barros  Sergio Augusto Cunha 《Journal of sports sciences》2013,31(14):1568-1577

Abstract

The purposes of this study were to characterise the total space covered and the distances between players within teams over ten Brazilian First Division Championship matches. Filmed recordings, combined with a tracking system, were used to obtain the trajectories of the players (n = 277), before and after half-time. The team surface area (the area of the convex hull formed by the positions of the players) and spread (the Frobenius norm of the distance-between-player matrix) were calculated as functions of time. A Fast Fourier Transform (FFT) was applied to each time series. The median frequency was then calculated. The results of the surface area time series median frequencies for the first half (0.63 ± 0.10 cycles · min^?1) were significantly greater (P < 0.01) than the second-half values (0.47 ± 0.14 cycles · min^?1). Similarly, the spread variable median frequencies for the first half (0.60 ± 0.14 cycles · min^?1) were significantly greater (P < 0.01) than the second-half values (0.46 ± 0.16 cycles · min^?1). The median frequencies allowed the characterisation of the time series oscillations that represent the speed at which players distribute and then compact their team formation during a match. This analysis can provide insights that allow coaches to better control the team organisation on the pitch.  相似文献   

Characteristics of extracurricular physical activity and cognitive performance in adolescents. The AVENA study     

Irene Esteban-Cornejo  Sonia Gómez-Martínez  Carlos M. Tejero-González  Ruth Castillo  Ricardo Lanza-Saiz  German Vicente-Rodríguez 《Journal of sports sciences》2013,31(17):1596-1603

Abstract

The aim of this report was to examine the associations between some characteristics (i.e., structure and number) of extracurricular physical activity (EPA) and cognitive performance in adolescents. A total of 1662 adolescents (880 girls; 13.0–18.5 years) from 5 Spanish cities (Granada, Madrid, Murcia, Santander and Zaragoza) were included in this study. Structure (organised and non-organised) and number of EPAs, and participation at vigorous intensity during EPA were self-reported. Cognitive performance (verbal, numeric and reasoning abilities, and an overall score) was measured with the “SRA-Test of Educational Ability”. Results showed that vigorous EPA was positively associated with all cognitive variables. Adolescents who practiced an organised EPA had higher scores in 3 of the 4 cognitive variables than those who practiced a non-organised EPA (all P < 0.05). Likewise, the group who participated in more than one EPA had higher cognitive performance in all variables than the group who participated in only one EPA (all P < 0.05). Regardless of potential confounder variables, including vigorous EPA, both structure and number of EPAs were each other independently associated with cognitive performance. Therefore, structure and number of EPAs may positively influence cognitive performance in adolescents. Participating in multiple, organised EPA may have benefits for cognitive performance.  相似文献   

A comparison of time-motion and technical–tactical variables between age groups of female judo matches     

Bianca Miarka  Rubiana Cury  Ricardo Julianetti  Rafael Battazza  Ursula Ferreira Julio  Michel Calmet 《Journal of sports sciences》2013,31(16):1529-1538

Abstract

The aim of the study was to verify differences between age groups of female judo matches in time-motion and technical–tactical analysis. The sample was composed of pre-cadet (13–14 years, n = 148), cadet (15–16 years, n = 228), junior (17–19 years, n = 104) and senior (>20 years, n = 237) groups. The time-motion indicators consisted of total combat time, standing combat time, displacement without contact, gripping time, total time of techniques, groundwork combat time and pause time, per match and by each combat/pause cycle. Technical and tactical variables were also collected. The one-way analysis of variance and a post hoc test were conducted, P ≤ 0.05. Cadets, with a median of 7 (2, 12), had a number of combat/pause cycles different from junior, with 3 (1, 8.5). Regarding time-motion per match and per cycle, senior had longer total combat time, standing combat time and gripping time than other groups. Senior presented lower frequency of leg techniques than pre-cadet, cadet and junior. Time-motion and technical–tactical variables effects in female judo athletes emphasise the difference between seniors and other groups.  相似文献   

Does biological sex impact intestinal epithelial injury,small intestine permeability,gastrointestinal symptoms and systemic cytokine profile in response to exertional-heat stress?     

Rhiannon M. J. Snipe  Ricardo J. S. Costa 《Journal of sports sciences》2013,31(24):2827-2835

ABSTRACT

This study aimed to determine the influence of biological sex on intestinal injury, permeability, gastrointestinal symptoms, and systemic cytokine profile in response to exertional-heat stress. Male (n= 13) and eumenorrheic female (n= 11) endurance runners completed 2 h running at 60% V?O_2max in 35°C. Blood samples were collected pre- and post-exercise and during recovery to determine plasma intestinal fatty-acid binding protein (I-FABP) and systemic cytokine profile. Urinary lactulose:L-rhamnose ratio was used to determine small intestine permeability. I-FABP increased 479% pre- to post-exercise (p< 0.001), with no difference between sexes (p= 0.432). No differences between sexes were observed for small intestine permeability (p= 0.808), gut discomfort, total, upper- and lower-gastrointestinal symptoms. However, males reported significantly higher flatulence (p= 0.049) and abdominal stitch (p= 0.025) compared to females. IL-6, IL-8, IL-10 and IL-1ra increased pre- to post-exercise (p< 0.05), with no difference between sexes. However, IL-1β increased post-exercise in males only, and was higher in males compared to females (p= 0.044). Findings suggest that when females are in the follicular phase of the menstrual cycle, biological sex has no effect on intestinal epithelial injury and permeability, and minimal effect on gastrointestinal symptoms and systemic cytokine profile in response to exertional-heat stress.  相似文献   

Competition and diversity in higher education: an empirical approach to specialization patterns of Portuguese institutions     

Pedro Nuno Teixeira  Vera Rocha  Ricardo Biscaia  Margarida Fonseca Cardoso 《Higher Education》2012,63(3):337-352

The expansion of higher education systems has often been associated with the need for increasing diversification, namely at the program level, based on the pressures to adapt more general programmes to a more diverse student population and multiple regional, social, and economic needs. This paper explores empirically the question of programme diversity by drawing on the Portuguese higher education’ experience, which presented massive expansion during the last decades and significant institutional competition in recent years. The study provides a longitudinal approach and analyzes in detail the evolution of diversification and specialization of the public and private sectors, as well as the university and polytechnic subsectors. The analysis aims at helping to illustrate the relevance of analysing diversity from an empirical point of view and its contribution to our understanding of the complex relationships between competition and diversity in contemporary higher education.  相似文献   

Conceptual Problems in the Foundations of Mechanics     

Ricardo Lopes Coelho 《Science & Education》2012,21(9):1337-1356

There has been much research on principles and fundamental concepts of mechanics. Problems concerning the law of inertia, the concepts of force, fictitious force, weight, mass and the distinction between inertial and gravitational mass are addressed in the first part of the present paper. It is argued in the second that the law of inertia is the source of these problems. Consequences drawn from the law explain the metaphysical concept of force, the problematic concept of fictitious force, the nominal definition of weight and the difficulty with defining mass operationally. The core of this connection between the law and these consequences lies in the fact that acceleration is a sufficient condition for force. The experimental basis of the law in the course of its history shows, however, that the law presupposes acceleration necessarily whereas acceleration does not presuppose the law. Therefore, there is no inconvenience in taking acceleration independently of the law. This is enough to bypass those problems. Taking into account how force is measured by force meters and how mass is basically determined, by comparison with the standard mass, a minimal meaning for both concepts of force and mass is established. All this converges with several solutions proposed in the course of history and increases the communicability of mechanics, as outlined in the final part of this paper.  相似文献