Intensity of emotional energy in situated cultural practices of science education     

Davis  James P.  Bellocchi  Alberto 《Cultural Studies of Science Education》2020,15(2):359-388

Cultural Studies of Science Education - This study addresses the need for innovative research approaches in science education for understanding better the inter-relationships between emotion and...  相似文献   

Using immersive virtual reality to support designing skills in vocational education     

Kevin Gonyop Kim  Catharine Oertel  Martin Dobricki  Jennifer K. Olsen  Alessia E. Coppi  Alberto Cattaneo  Pierre Dillenbourg 《British journal of educational technology : journal of the Council for Educational Technology》2020,51(6):2199-2213

  相似文献   

A novel Cervical Spine Protection device for reducing neck injuries in contact sports: design concepts and preliminary in vivo testing*     

Paolo Caravaggi  Alberto Leardini  Claudio Belvedere 《Sports biomechanics / International Society of Biomechanics in Sports》2020,19(3):382-394

Abstract

Head and neck injuries are common in contact sports such as American football. Different mechanisms can produce such injuries, including compressive impact forces on the crown of the helmet with the neck in a flexed chin-down position. The aim of this paper was developing and testing a novel Cervical Spine Protection Device (CSPD) designed to keep the neck within its safe physiological range. The cervical spine range of motion (ROM) of ten participants was measured under four conditions: free; wearing a football gear; wearing the CSPD; and wearing the CSPD underneath the gear. The CSPD was tested in terms of passive and active restraint of head motion, and for its capability to improve endurance time of the neck extensor muscles. Wearing the CSPD resulted in a significant 40–60% reduction in ROM across the three anatomical planes, and in increased endurance of the neck extensor muscles (FREE: 114 ± 57 s; CSPD: 214 ± 95 s; p = 0.004). In quasi-static loading conditions the CSPD was capable of keeping the neck within its physiological range, thus it may be used to decrease the risk of severe injuries due to dangerous chin-down positions.  相似文献   

Book reviews     

William W. Brickman  Willy Strzelewicz  William Taylor  Joachim H. Knoll  Mark Blaug  Oskar Anweiler  Andreas Fuchs  Gilda L. de Romero Brest  Alberto Aráoz  Wolfgang Brezinka  Enrique Oteiza  W. F. Connell  Robert J. Havighurst  Daniel F. Wozniak  Wolfgang Roth  Karl Frey  Alfons Otto Schorb 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1970,16(2):221-249

  相似文献   

Changing Patterns in the Middle Management of Higher Education Institutions: The Case of Portugal   总被引：1，自引：0，他引：1  

Rui Santiago  Teresa Carvalho  Alberto Amaral  V. Lynn Meek 《Higher Education》2006,52(2):215-250

Abstact Much of the writing on higher education in recent years has tended to assume that the new management push in higher education is both universal and irreversible. This paper, however, presents evidence from Portugal to challenge that assumption. While elements of the new managerialism are clearly evident in the perceptions and attitudes of academics in charge of the basic academic units (departments/schools and faculties) in the country’s universities and polytechnics, academic management remains faced with a complex, contradictory and conflicting set of demands and expectations which is likely to take a considerable time to resolve.  相似文献   

Science,objectivity and moral values     

Alberto Cordero 《Science & Education》1992,1(1):49-70

Scientific facts are loaded with values, but, it is argued, this does not viciously compromise the objectivity of scientific claims, because the values that permeate scientific discourse (a) are loaded in turn with facts, (b) are not immune from critical revision, and (c) have changed in the past and continue to be subjected to revision. In science, unlike such enterprises as Scientific Creationism, values are discovered, introduced, tested and challenged in the same way that other aspects of scientific discourse are. All of this makes scientific discourse relevant to the contemporary exploration and critique of human values in general, particularly as more aspects of life become illuminated by science.Research for this paper was made possible in part by RF-CUNY (grant PSC-CUNY 669106). A preliminary version of this paper was given at Universite de Fribourg, Switzerland, May 1990.  相似文献   

Concept maps: Experiments on dynamic thinking     

Natalia Derbentseva  Frank Safayeni  Alberto  J. Cañas 《科学教学研究杂志》2007,44(3):448-465

Three experiments were conducted to examine the effects of map structure, concept quantification, and focus question on dynamic thinking during a Concept Map (CMap) construction task. The first experiment compared cyclic and hierarchical structures. The second experiment examined the impact of the quantification of the header concept in the map. The third experiment explored the effect of the focus question on the map. For all three experiments, the content of the CMaps was assessed for the number of dynamic propositions and the number of quantified concepts. The results show that the cyclic structure, the quantification of the header concept, and the focus question “How” significantly increased dynamic thinking. The studies, the theoretical background, and the implications of the findings are discussed. © 2006 Wiley Periodicals, Inc. J Res Sci Teach 44: 448–465, 2007  相似文献   

Privatization And Vouchers In Colombia And Chile     

Alberto Arenas 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2004,4(2):379-395

The voucher model of financing schooling is becoming increasingly common throughout Latin America, with at least 12 countries using vouchers or voucher-like schemes. The present study focuses on the voucher models of Colombia and Chile, which have the most extensive programs of this type and those of the longest standing in the region. Using empirical evidence, the author compares the two models along four evaluative dimensions: educational quality, segregation, choice and socialization. After weighing the successes and weaknesses of each system, he concludes that, among other characteristics, the most effective and equitable voucher model features: (a) a flexible interpretation of educational quality; (b) financial grants which target solely the poor; (c) vouchers which cover the entire cost of tuition; (d) open enrolment at participating schools; (e) the participation of both secular and religious private schools; (f) accessible and meaningful information to parents; and (g) strong systems of accountability.  相似文献   

Using the Standardized Root Mean Squared Residual (SRMR) to Assess Exact Fit in Structural Equation Models     

Goran Pavlov  Alberto Maydeu-Olivares  Dexin Shi 《Educational and psychological measurement》2021,81(1):110

We examine the accuracy of p values obtained using the asymptotic mean and variance (MV) correction to the distribution of the sample standardized root mean squared residual (SRMR) proposed by Maydeu-Olivares to assess the exact fit of SEM models. In a simulation study, we found that under normality, the MV-corrected SRMR statistic provides reasonably accurate Type I errors even in small samples and for large models, clearly outperforming the current standard, that is, the likelihood ratio (LR) test. When data shows excess kurtosis, MV-corrected SRMR p values are only accurate in small models (p = 10), or in medium-sized models (p = 30) if no skewness is present and sample sizes are at least 500. Overall, when data are not normal, the MV-corrected LR test seems to outperform the MV-corrected SRMR. We elaborate on these findings by showing that the asymptotic approximation to the mean of the SRMR sampling distribution is quite accurate, while the asymptotic approximation to the standard deviation is not.  相似文献   

Communicative Antecedents of Political Persuasion: Political Discussion,Citizen News Creation,and the Moderating Role of Strength of Partisanship     

Alberto Ardèvol-Abreu  Matthew Barnidge  Homero Gil de Zúñiga 《Mass Communication and Society》2017,20(2):169-191

Although much attention has been paid to how media use and interpersonal discussion motivate people to engage in political persuasion, and despite recent efforts to study the role of digital media technologies, less is known about the creation of news and public affairs content online. This study sheds light on how online content creation works alongside other communicative behaviors, such as news use and political discussion, to affect attempted political persuasion. Using two-wave panel survey data, we find that political discussion and citizen news creation mediate the relationships between online and traditional news use, on one hand, and attempted persuasion, on the other. Furthermore, strength of partisanship moderates the relationship between content creation and attempted persuasion. Findings are discussed in light of their implications for the political communication and public sphere processes.  相似文献