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51.
So many studies have failed to show significant effects for illustrations in texts and teaching materials that, the author
remarks, if the research is taken at face value, it is not difficult to begin believing that illustrations really are not
very important in assisting learning. However, he concludes, their value has been confirmed by a sufficient number of studies
to support intuitive beliefs and researchers now must move on, using new frameworks to study the reasons illustrations can
aid learning. 相似文献
52.
Philippe Bongrand 《Journal of School Choice》2016,10(3):320-329
ABSTRACTEveryone in France takes for granted the existence of compulsory school attendance (“école obligatoire”) while home education remains very exceptional. Yet school attendance is not, and has never been, legally compulsory in France. How can one explain the fact that the right to home educate is little known and practiced? This article researches how public policies may foster this widespread ignorance. Drawing mainly on archival records of French Parliament debates about compulsory instruction in 1882, 1936, and 1998, it depicts various ways for lawmakers to contribute to this ignorance. 相似文献
53.
Lukas Baschung Gaële Goastellec Jean‐Philippe Leresche 《Tertiary Education and Management》2013,19(1):51-64
Although eternally debated, the issue of autonomy in higher education is rarely analysed in its complexity. To address this issue, this article uses an analytical matrix which combines the distinction between substantive and procedural autonomy and the distinction between HEI governing bodies, academic professions and individual academics. This framework allows for analysing—by the example of the Swiss academic labour market—how changes in national steering can lead to the redistribution of autonomy between the mentioned actors. Further insights relate to the observed higher education system’s decentralised character. Empirical findings—based on the examination of three special programmes initiated by the federal government—indicate that HEI actors lose some substantive autonomy in favour of the Confederation, and—against the general tendency induced by New Public Management to reinforce HEI governing bodies—procedural autonomy is rather redistributed to individual academics and academic professions. 相似文献
54.
The aim of this study was to determine the influence of breathing frequency and tidal volume on resting heart rate variability in children aged 9 years ( n = 29) and 16 years ( n = 19). Heart rate variability was measured in four conditions: (1) without the control of ventilation followed at random by (2) a fixed breathing frequency of 12 breaths· min -1 , (3) a breathing frequency of 12 breaths· min -1 but with a fixed tidal volume of 30% vital capacity and (4) a fixed breathing frequency of 6 breaths·min -1 and a tidal volume of 30% vital capacity. A total of 128 RR intervals (the time between two spikes in the heart rate) were detected and absolute high- and low-frequency spectral components were calculated using autoregressive modelling. The younger children were unable to control ventilation to achieve conditions 3 and 4; therefore, a 2 2 2 (group 2 condition) analysis of variance was used to analyse conditions 1 and 2. There were significant interactions between group and heart rate variability conditions for the low-frequency component and the ratio of low to high frequencies ( P ? 0.001). The main effect for condition showed that at 12 breaths· min -1 with no fixed tidal volume there was a significantly higher standard deviation of the RR interval, total power and high-frequency ( P ? 0.01) and lowfrequency spectral components ( P ? 0.05) than in the condition with no ventilatory control. Across the four breathing conditions for the older participants, the high-frequency spectral component was significantly higher in the condition at 6 breaths· min -1 with a fixed tidal volume than in that with no ventilatory control ( P ? 0.005); the ratio of high to low frequencies was significantly lower for the spontaneous condition than those performed at 12 breaths· min -1 ( P ? 0.001). The results provide evidence of the need for ventilatory control when assessing short-term resting heart rate variability in children. 相似文献
55.
Daniel A. Bizjak Fabian Tomschi Gunnar Bales Elie Nader Marc Romana Philippe Connes Wilhelm Bloch Marijke Grau 《运动与健康科学(英文)》2020,9(6):595-603
ObjectiveTo examine the impact of a 6-week endurance training on red blood cell (RBC) aging and deformability of healthy participants to detect possible improved hemorheological and performance-related adaptations.MethodsA total of 31 participants (17 females and 14 males) performed a 6-week moderate training protocol (three 1-h running sessions per week at 70% of maximal heart rate). Blood was sampled before and after the training. RBCs from each participant were fractioned according to density and age into 4 RBC subfractions. Subfractions were examined for changes of RBC properties, including aging distribution, RBC deformability, RBC microparticles, and phosphatidylserine concentrations. RBC and plasma nitrite levels were measured as indicators of nitric oxide metabolism.ResultsAerobic performance, peak oxygen consumption, ventilatory thresholds, velocity at the aerobic–anaerobic threshold, and lactate at exhaustion improved after training. The relative amount of both young RBCs and old RBCs increased, and the amount of the main RBC fraction decreased. Phosphatidylserine externalization and RBC-derived microparticles decreased. Overall deformability expressed as shear stress required to achieve half-maximum deformation to theoretical maximal elongation index at infinite shear stress improved in unfractioned RBCs (p < 0.001). Nitrite decreased in total (p = 0.001), young (p < 0.001), main (p < 0.001), and old (p = 0.020) aged RBCs and in plasma (p = 0.002), but not in very old RBCs.ConclusionThese results indicate that non-endurance-trained healthy participants benefit from a regular moderate running training program because performance-related parameters improve and a younger RBC population with improved RBC properties is induced, which might support oxygen supply in the microcirculation. 相似文献
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59.
Philippe C. Duchastel 《Instructional Science》1990,19(6):437-444
There is strong interest in the field of instructional design in building expert systems that can provide advice to inexperienced instructional designers. This paper questions whether the expert systems model to advice-giving is in fact appropriate for a design process such as instructional design. An alternate approach based on case-based reasoning and the critic approach to advice-giving is considered to be better adapted to the cognitive needs of this task. The cognitive constraints of the task are used to orient the design of an instructional design workbench. The concept of an ID workbench illustrates the direct application of cognitive science to a complex practical task in the area of design. 相似文献
60.
Philippe Gaudin 《British Journal of Religious Education》2017,39(1):93-106
In France, there is no religious education in state schools. ‘Convictional education’ appeared by drawing its perimeter around three educational subjects: philosophy, teaching about religions, and moral and civic education. Today, the French school is facing new challenges in a highly secularised society on which religion is laying new claims. As an institution, it is not neutral insofar as it proceeds from a political philosophy that evolved from the French Revolution. It is within the operative framework of this philosophy and with specific teaching practices that it intends to combine unity and plurality within itself. 相似文献