Search results for "Movement"
showing 10 items of 2021 documents
Le dispositif musical du Mouvement de la jeunesse communiste de France (1956-1968) : prescription culturelle et gouvernementalité militante
2019
International audience
Altération des performances neuromusculaires après un exercice physique prolongé. Analyse comparée d'une épreuve de marathon et de triathlon
1998
The aim of this study was to compare the effects of a marathon and a triathlon on isometric and dynamic neuromuscular performances. Seven triathletes took part in 3 experimental situations : a 2 h 15 mn triathlon (TRI) (30 min swimming, 60 min cycling and 45 min running), a 2 h 15 mn marathon (MA) and a 45 min isolated run done at triathlon speed. The results showed a reduction of the isometric endurance time for knee extensor muscles (35 % of maximal voluntary contraction) after TRI (41 ± 24 %) and after MA (59 ± 19 %). The height of rise of the center of gravity of the counter-movement jumps (CMJ) was also significantly lower after MA (-12 ± 1 cm) than after TRI (-2,5 0,5 cm). Kinetic ana…
Methodological Considerations for Movement Education Interventions in Natural Environments for Primary School Children: A Scoping Review.
2022
Background: Education is the ideal setting for carrying out projects to improve primary students’ capacities. In recent years, interventions in natural environments have been more frequently proposed, but there is still a lack of standardization, making deeper study of the topic necessary. This review aims to report on what previous scientific research has been carried out, and eventually, to propose standard operating procedures for future interventions. Methods: This is a scoping review that adopted the PRISMA guidelines. Primary school children have been included, and the interventions had to be proposed adopting nature as the primary element of the learning process. Results: A total of …
Acu kustību iekārtu IViewX RED500 un EyeLink precizitātes salīdzinājums
2019
Darbs ir uzrakstīts latviešu valodā uz 34 lapaspusēm. Tas satur 23 attēlus, 28 atsauces uz literatūras avotiem. Darba mērķis ir novērtēt Latvijas Universitātē Optometrijas un redzes zinātnes nodaļā pieejamo acu kustību iekārtu IViewX RED500 un EyeLink 1000 Plus precizitāti. Iekārtu precizitāte tika novērtēta, izmantojot 13 pelēkus diska formas stimulus ar ārējo rādiusu 0,8° un iekšējo – 0,6°, kas tika izvietoti uz balta un melna fona. Dalībniekiem tika sniegts uzdevums apskatīt visus 13 stimulus vienu pēc otra. Iegūtie rezultāti norāda, ka IViewX RED500 un EyeLink 1000 Plus acu kustību iekārtu precizitāte nav būtiski atšķirīga. Novērots EyeLink 1000 Plus precizitātes samazinājās apskatot ek…
Notch and Numb are required for normal migration of peripheral glia in Drosophila
2006
Abstract A prominent feature of glial cells is their ability to migrate along axons to finally wrap and insulate them. In the embryonic Drosophila PNS, most glial cells are born in the CNS and have to migrate to reach their final destinations. To understand how migration of the peripheral glia is regulated, we have conducted a genetic screen looking for mutants that disrupt the normal glial pattern. Here we present an analysis of two of these mutants: Notch and numb. Complete loss of Notch function leads to an increase in the number of glial cells. Embryos hemizygous for the weak NotchB-8X allele display an irregular migration phenotype and mutant glial cells show an increased formation of …
Sonic hedgehog promotes the migration and proliferation of optic nerve oligodendrocyte precursors.
2007
Optic nerve (ON) oligodendrocyte precursors (OPCs) are generated under the influence of the Sonic hedgehog (Shh) in the preoptic area from where they migrate to colonise the entire nerve. The molecular events that control this migration are still poorly understood. Recent studies suggested that Shh is often used by the same cell population to control different processes, including cell proliferation and migration, raising the possibility that Shh could contribute to these aspects of OPC development. In support of this idea, we show here that Shh induces the proliferation of OPCs derived from embryonic mouse ON explants and acts as a chemoattractant for their migration. In ovo injections of …
Cellular Composition and Organization of the Subventricular Zone and Rostral Migratory Stream in the Adult and Neonatal Common Marmoset Brain
2011
The adult subventricular zone (SVZ) of the lateral ventricle contains neural stem cells. In rodents, these cells generate neuroblasts that migrate as chains toward the olfactory bulb along the rostral migratory stream (RMS). The neural-stem-cell niche at the ventricular wall is conserved in various animal species, including primates. However, it is unclear how the SVZ and RMS organization in nonhuman primates relates to that of rodents and humans. Here we studied the SVZ and RMS of the adult and neonatal common marmoset (Callithrix jacchus), a New World primate used widely in neuroscience, by electron microscopy, and immunohistochemical detection of cell-type-specific markers. The marmoset …
A Comparative Study on the Implementation of the Free Movement Directive: Transposition, Application and Enforcement in Belgium, Italy and the UK Com…
The Free Movement Directive is the key EU legal instrument that regulates the free movement of persons within the thirty-one countries that make up the European Economic Area. Implementation of Directive 2004/38 by the Member States has been far from satisfactory and the Commission has deplored the fact that not a single Member State had been able to implement the Directive correctly. The enforcement action that the Commission has so far taken does not appear to have necessarily been linked to how well transposition complies with the Directive in individual Member States. In other words, the way in which the Directive has been written into national law does not seem to be the only factor th…
Geolocators reveal variation and sex-specific differences in the migratory strategies of a long-distance migrant
2021
Bell F, Bearhop S, Briedis M, El Harouchi M, Bell SC, Castello J, Burgess M. 2022. Geolocators reveal variation and sex-specific differences in the migratory strategies of a long-distance migrant. Ibis. doi:10.1111/ibi.13017
Geolocators reveal variation and sex-specific differences in the migratory strategies of a long-distance migrant-reference-data
2021
Bell F, Bearhop S, Briedis M, El Harouchi M, Bell SC, Castello J, Burgess M. 2022. Geolocators reveal variation and sex-specific differences in the migratory strategies of a long-distance migrant. Ibis. doi:10.1111/ibi.13017