The Perceived Impact of Eight Systemic Factors on Scientific Capital Accumulation     

Bégin-Caouette  Olivier 《Minerva》2020,58(2):163-185

Minerva - In the global academic capitalist race, academics, institutions and countries’ symbolic power results from the accumulation of scientific capital. This paper relies on the...  相似文献   

Satisfaction des exigences minimales du marché du travail par le système éducatif: Evaluation dans un contexte de faible système d’information sur la formation et l’emploi     

Calice Olivier Pieume 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2016,62(6):733-750

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Performance of Spanish universities in technology transfer: An empirical analysis     

Aida Caldera  Olivier Debande 《Research Policy》2010,39(9):1160-12407

This paper investigates the performance of universities in the transfer of technology using a unique university-level dataset for Spain. The results suggest that universities with established policies and procedures for the management of technology transfer perform better. Universities with large and experienced technology transfer offices (TTOs) generate higher volumes of contract research, but the TTO characteristics appear to matter less for university performance in terms of licensing and creation of spin-offs. Furthermore, universities with a science park perform better than those without, which suggests that the agglomeration of knowledge close to universities has a positive effect on universities’ technology transfer performance.  相似文献   

Larger strength losses and muscle activation deficits in plantar flexors induced by backward downhill in reference to distance-matched forward uphill treadmill walk     

Olivier Girard  Sébastien Banzet  Nathalie Koulmann  Mounir Chennaoui  Catherine Drogou  Hakim Chalabi 《European Journal of Sport Science》2018,18(10):1346-1356

We tested the hypothesis that backward downhill walking (eccentric component) impairs both voluntary activation and muscle contractile properties in the plantar flexors and delays recovery as compared to a gradient and distance-matched uphill walk. Fourteen males performed two 30-min walking exercises (velocity: 1?m/?s; grade: 25%; load: 12% of body weight), one downhill (DW) and one uphill (UP), in a counterbalanced order, separated by 6?weeks. Neuromuscular test sessions were performed before, after, 24-, 48- and 72-h post-exercise, including motor nerve stimulations during brief (5?s) and sustained (1?min) maximal isometric voluntary contractions of the plantar flexors. DW (?18.1?±?11.1%, P?P?=.15), decreased torque production during brief contractions for at least three days post-exercise (P?P?P?=?.024) and DW (?25.6?±?10.3%, P?P?=?.001) was lower in DW than UP. Peak twitch torque and maximum rates of torque development and relaxation were equally reduced after UP and DW (P?P?P?>?.05). Using a direct comparison, the capacity to drive the plantar flexors during sustained contractions remains sub-optimal during the three-day recovery period in response to non-exhaustive, downhill backward walking in reference to an uphill exercise matched for distance covered.  相似文献   

Sprint mechanical differences at maximal running speed: Effects of performance level     

Giorgios P Paradisis  Athanassios Bissas  Panagiotis Pappas  Elias Zacharogiannis  Apostolos Theodorou  Olivier Girard 《Journal of sports sciences》2013,31(17):2026-2036

ABSTRACT

As the effect of performance level on sprinting mechanics has not been fully studied, we examined mechanical differences at maximal running speed (MRS) over a straight-line 35 m sprint amongst sprinters of different performance levels. Fifty male track and field sprinters, divided in Slow, Medium and Fast groups (MRS: 7.67 ± 0.27 m?s^?1, 8.44 ± 0.22 m?s^?1, and 9.37 ± 0.41 m?s^?1, respectively) were tested. A high-speed camera (250 Hz) recorded a full stride in the sagittal plane at 30–35 m. MRS was higher (p < 0.05) in Fast vs. Medium (+11.0%) and Slow (+22.1%) as well as in Medium vs. Slow (+10.0%). Twelve, eight and seven out of 21 variables significantly distinguished Fast from Slow, Fast from Medium and Medium from Slow sprinters, respectively. Propulsive phase was signi?cantly shorter in Fast vs. Medium (?17.5%) and Slow (?29.4%) as well as in Medium vs. Slow (?14.4%). Fast sprinters had significantly higher vertical and leg stiffness values than Medium (+44.1% and +18.1%, respectively) and Slow (+25.4% and +22.0%, respectively). MRS at 30–35 m increased with performance level during a 35-m sprint and was achieved through shorter contact time, longer step length, faster step rate, and higher vertical and leg stiffness.  相似文献   

Acquisition of the concept of teaching and its relationship with theory of mind in French 3- to 6-year olds     

Leila Bensalah  Marie Olivier 《Teaching and Teacher Education》2012,28(3):303-311

Little is known about how and when preschoolers master the concept of teaching, particularly in relation to the acquisition of theory of mind (ToM). We investigated the relationship between the two in children aged 3-6 years old. One hundred and seventeen French preschool pupils answered questions about different teaching situations illustrated in ten stories involving knowledge differences and/or false belief. Four change-of-location ToM stories were also administered. Our results indicate a developmental progression from understanding teaching situations to grasping the notion of knowledge gaps. Moreover, they confirm that ToM seems to be involved in understanding more complex teaching situations.  相似文献   

Examining transfer effects from dialogic discussions to new tasks and contexts   总被引：1，自引：0，他引：1  

Alina Reznitskaya  Monica GlinaBrian Carolan  Olivier MichaudJon Rogers  Lavina Sequeira 《Contemporary educational psychology》2012

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Long-term high fructose and saturated fat diet affects plasma fatty acid profile in rats     

Fabrice Tranchida  Léopold Tchiakpe  Zo Rakotoniaina  Valérie Deyris  Olivier Ravion  Abel Hiol 《Journal of Zhejiang University. Science. B》2012,13(4):307-317

As the consumption of fructose and saturated fatty acids (FAs) has greatly increased in western diets and is linked with an increased risk of metabolic syndrome, the aim of this study was to investigate the effects of a moderate (10 weeks) and a prolonged (30 weeks) high fructose and saturated fatty acid (HFS) diet on plasma FA composition in rats. The effects of a few weeks of HFS diet had already been described, but in this paper we tried to establish whether these effects persist or if they are modified after 10 or 30 weeks. We hypothesized that the plasma FA profile would be altered between 10 and 30 weeks of the HFS diet. Rats fed with either the HFS or a standard diet were tested after 10 weeks and again after 30 weeks. After 10 weeks of feeding, HFS-fed rats developed the metabolic syndrome, as manifested by an increase in fasting insulinemia, total cholesterol and triglyceride levels, as well as by impaired glucose tolerance. Furthermore, the plasma FA profile of the HFS group showed higher proportions of monounsaturated FAs like palmitoleic acid [16:1(n-7)] and oleic acid [18:1(n-9)], whereas the proportions of some polyunsaturated n-6 FAs, such as linoleic acid [18:2(n-6)] and arachidonic acid [20:4(n-6)], were lower than those in the control group. After 30 weeks of the HFS diet, we observed changes mainly in the levels of 16:1(n-7) (decreased) and 20:4(n-6) (increased). Together, our results suggest that an HFS diet could lead to an adaptive response of the plasma FA profile over time, in association with the development of the metabolic syndrome.  相似文献   

3-min whole body cryotherapy/cryostimulation after training in the evening improves sleep quality in physically active men     

Wafa Douzi  Olivier Dupuy  Maxence Tanneau  Geoffroy Boucard  Romain Bouzigon 《European Journal of Sport Science》2019,19(6):860-867

Exercise training during evening may disturb sleep patterns and hinder recovery process. The present study aimed to examine the effect of whole body cryotherapy (WBC) exposure after training in the evening on sleep quality and night heart rate variability (HRV). A total of 22 physically active men were randomized to undergo either WBC (3-min at ?40°C, wind speed of 2.3?m?s^?1) or passive recovery (control) following an evening training consisting of 25?min of continuous running at 65% of the maximal aerobic speed (MAS) followed by intermittent running at 85% of the MAS. Each night following the training, the number of movements and HRV during sleeping time were recorded. The next morning, subjective sleep quality and perceived pain were assessed using Spiegel questionnaire and a visual analogue scale, respectively. The number of movements during the night following WBC was significantly reduced (p?p?p?p?p?相似文献   

The relevance of hedonic price indices     

Olivier Chanel  Louis-André Gérard-Varet  Victor Ginsburgh 《Journal of Cultural Economics》1996,20(1):1-24

We argue that for the case of heterogeneous commodities with infrequent tradings, such as paintings, it is relevant to base a price index on hedonic regressions using all sales and not resales only. To support this conclusion we construct a price index for paintings by Impressionists and their followers and compare the various estimators using bootstrapping techniques.  相似文献