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Journal articles on the topic 'Analyse les Modes de Défaillance'

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Published: 22 June 2023

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1

Bessrour, J. "Analyse thermomécanique d'une défaillance par fluage d'un secteur d'aubes de turbine à gazThermomechanical analysis of creep failure of a gas turbine nozzle guide vane." Mécanique & Industries 3, no. 1 (February 2002): 51–62. http://dx.doi.org/10.1016/s1296-2139(01)01133-2.

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2

Thellier, S. "Analyse des risques en radiothérapie." Radioprotection 54, no. 1 (January 2019): 21–30. http://dx.doi.org/10.1051/radiopro/2019003.

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L’analyse des risques en radiothérapie participe directement à la radioprotection des patients et en est une composante essentielle. En France, des difficultés d’appropriation et d’utilisation ont émergé de l’application en radiothérapie de la méthode AMDEC (analyse des modes de défaillance, de leurs effets et de leur criticité) fondée sur l’analyse des modes de défaillance. Pour répondre aux besoins des analystes d’ouvrir la discussion sur les risques quotidiens et d’améliorer la sécurité des soins à l’échelle de l’organisation, le présent article propose de changer de cadre conceptuel. Les espaces de partage et d’exploration de la complexité du travail (EPECT) – expérimentés dans cette recherche – sont des espaces de discussion organisés qui proposent de mobiliser de nouveaux principes méthodologiques pour aider les analystes à faire le lien entre des situations de travail d’une équipe médicale et les situations risquées pour les patients traités par rayonnements ionisants. Cette approche de l’analyse des risques se veut positive car elle privilégie l’analyse de la performance d’une équipe plutôt que ses modes de défaillance. Au-delà de la conception d’une démarche d’analyse, cette recherche invite à questionner la transformation du travail, à analyser la cohérence des dimensions structurelles et opérationnelles de l’organisation et à adapter la conception des organisations.
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3

Bélanger, Danièle. "Modes de cohabitation et liens intergénérationnels au Vietnam." Articles 26, no. 2 (March 25, 2004): 215–45. http://dx.doi.org/10.7202/010232ar.

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RÉSUMÉ Cet article explore la famille vietnamienne par une étude des structures familiales. Une brève analyse de données historiques issues de la période coloniale précède celle, plus détaillée, sur les données de l'Enquête sur les niveaux de vie de la Banque mondiale conduite en 1992-1993 auprès de 4800 ménages. En plus de fournir les premiers résultats nationaux sur la composition des ménages vietnamiens, l'article analyse les données d'un point de vue individuel. Cette approche permet à l'auteur de tracer un parcours de vie familial aux différents âges de la vie. En somme, les résultats montrent la complexité du contexte familial, l'importance des liens intergénérationnels et l'absence de nucléarisation de la famille vietnamienne.
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4

Haake, Susanne. "Narrative modes of cinemagoing memories." Alphaville: Journal of Film and Screen Media, no. 11 (August 17, 2016): 78–91. http://dx.doi.org/10.33178/alpha.11.05.

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This article focuses on the results of my research project on cinemagoing heritage, concluding with the development of a matrix to analyse and categorise cinemagoing memories. What cinemagoing recollections come into the minds of the subjects in retrospect, and in what manner are these memories communicated? I explored the forms of how cinemagoing in the 1930s–1950s is remembered by eyewitnesses today. After seven to eight decades, the social habit of going to the cinema still occupies an important place in the collective memory of elderly people, particularly in rural communities. As my method of survey I chose the narrative video; I then plotted these memories on a map to categorise them.
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5

Takata, Masao, and Hideyuki Saio. "Analysis of rosette modes of oscillations in rotating stars." Proceedings of the International Astronomical Union 9, S301 (August 2013): 497–98. http://dx.doi.org/10.1017/s1743921313015238.

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AbstractWe analyse the rosette modes of oscillations in rotating stars, which are characterised by rosette patterns of the kinetic-energy distribution on the meridional plane. Following our previous argument that these modes are generated by the rotation-induced interaction among eigenmodes with almost the same frequency, we discuss the structure of the rosette patterns base on the JWKB analysis. We also demonstrate that there exist nonaxisymmetric rosette modes.
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6

Boubakary, Ben. "Modes opératoires des organisations hybrides : analyse théorique des logiques institutionnelles concurrentes." Question(s) de management 40, no. 3 (September 14, 2022): 75–87. http://dx.doi.org/10.3917/qdm.220.0075.

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7

Marlier, Sabrina. "Analyse des modes d’assemblage au sein du chaland Arles-Rhône 3." Archaeonautica 18, no. 1 (2014): 140. http://dx.doi.org/10.3406/nauti.2014.1322.

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8

Irago, Hipolito, Nabil Kerdid, and Juan M. Viaño. "Analyse asymptotique des modes de hautes fréquences dans les poutres minces." Comptes Rendus de l'Académie des Sciences - Series I - Mathematics 326, no. 10 (May 1998): 1255–60. http://dx.doi.org/10.1016/s0764-4442(98)80238-3.

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9

Harder, G., V. Ansari, T. J. Bartley, B. Brecht, and C. Silberhorn. "Harnessing temporal modes for multi-photon quantum information processing based on integrated optics." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 375, no. 2099 (June 26, 2017): 20160244. http://dx.doi.org/10.1098/rsta.2016.0244.

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In the last few decades, there has been much progress on low loss waveguides, very efficient photon-number detectors and nonlinear processes. Engineered sum-frequency conversion is now at a stage where it allows operation on arbitrary temporal broadband modes, thus making the spectral degree of freedom accessible for information coding. Hereby the information is often encoded into the temporal modes of a single photon. Here, we analyse the prospect of using multi-photon states or squeezed states in different temporal modes based on integrated optics devices. We describe an analogy between mode-selective sum-frequency conversion and a network of spatial beam splitters. Furthermore, we analyse the limits on the achievable squeezing in waveguides with current technology and the loss limits in the conversion process. This article is part of the themed issue ‘Quantum technology for the 21st century’.
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10

Sawant, Parantapa, Willi Nieratschker, Marc Nadler, and Christian Braasch. "Energetische und ökonomische Analyse von realen dezentralen hybriden Energiesystemen." BWK ENERGIE. 73, no. 7-8 (2021): 61–65. http://dx.doi.org/10.37544/1618-193x-2021-7-8-61.

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Im Rahmen des EU-Forschungsprojektes ACA-Modes (Advanced Control Algorithms for Management of Decentralised Energy Systems) werden reale Labore der Projektpartner primärenergetisch, ökonomisch und die Emissionen betreffend bewertet. Vier Projektpartner liefern Datensätze aus Messreihen typischer Bereitstellungsszenarien. Die verschiedenen Systeme bestehen unter anderem aus einer KWK-Anlage mit Erdgas-Verbrennungsmotor, einer KWKK-Anlage mit Adsorptionskältemaschine, einer Photovoltaik-Anlage mit Batteriespeicher und Wärmepumpe und einer Solarthermieanlage mit Adsorptionskältemaschine.
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11

Meulders-Klein, Marie-Thérése. "Les modes alternatifs de règlement des conflits en matière familiale. Analyse comparative." Revue internationale de droit comparé 49, no. 2 (1997): 383–407. http://dx.doi.org/10.3406/ridc.1997.5438.

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12

Thiery, Mickaël, Véronique Baroghel-Bouny, Nicolas Bourneton, Géraldine vilain, and Christian Stéfani. "Modélisation du séchage des bétons. Analyse des différents modes de transfert hydrique." Revue européenne de génie civil 11, no. 5 (June 14, 2007): 541–78. http://dx.doi.org/10.3166/regc.11.541-578.

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13

Thellier, S. "Analyse des risques en radiothérapie." Radioprotection 54, no. 1 (January 2019): 11–19. http://dx.doi.org/10.1051/radiopro/2019004.

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À la suite de la survenue des accidents d’Épinal (détecté en 2006) et de Toulouse (détecté en 2007), la radioprotection des patients a été remise en avant dans le travail de tous les acteurs concernés et s’est imposée de fait comme incontournable. En conséquence, la réglementation concernant la gestion des risques en radiothérapie a évolué en France. En l’absence de méthode propre pour analyser les risques médicaux, des méthodes d’analyse des risques issues des sciences de l’ingénieur ont été transposées en 2009 en radiothérapie. Il s’agit notamment de la méthode d’analyse des modes de défaillance et de leurs effets (AMDEC) adoptée par l’Autorité de sûreté nucléaire dans son guide méthodologique. Mais l’application de l’AMDEC en radiothérapie a révélé des difficultés d’utilisation qui entrent en résonance avec certaines difficultés décrites dans la littérature internationale. Cet article, issu d’une recherche en ergonomie conduite dans le domaine de la gestion des risques et de la sécurité des patients en radiothérapie, fait le point sur les forces et faiblesses de la méthode AMDEC.
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14

SAHA, S., and S. N. BORA. "EFFECTS OF SURFACE TENSION ON TRAPPED MODES IN A TWO-LAYER FLUID." ANZIAM Journal 57, no. 2 (October 2015): 189–203. http://dx.doi.org/10.1017/s1446181115000188.

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We consider a two-layer fluid of finite depth with a free surface and, in particular, the surface tension at the free surface and the interface. The usual assumptions of a linearized theory are considered. The objective of this work is to analyse the effect of surface tension on trapped modes, when a horizontal circular cylinder is submerged in either of the layers of a two-layer fluid. By setting up boundary value problems for both of the layers, we find the frequencies for which trapped waves exist. Then, we numerically analyse the effect of variation of surface tension parameters on the trapped modes, and conclude that realistic changes in surface tension do not have a significant effect on the frequencies of these.
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15

Wang, H., and R. Kovacevic. "Feasibility study of acoustic sensing for the welding pool mode in variable-polarity plasma arc welding." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 216, no. 10 (October 1, 2002): 1355–66. http://dx.doi.org/10.1243/095440502320405449.

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The relationships between the acoustic signal and the modes of the welding pool, such as no-keyhole (melt-in), keyhole and cutting, in variable-polarity plasma arc welding are investigated. The Welch power spectral density (PSD) estimate and short-time Fourier transformation are implemented to analyse and identify the different modes of the welding pool. The results show that the no-keyhole mode (melt-in welding process) can be clearly distinguished from the keyhole and the cutting modes. The keyhole size is inversely proportional to the Welch PSD estimate of the acoustic signal.
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16

Jiang, Xiaochen, Jia Liu, Di Zhu, Mingming Wang, and Ningsong Qu. "Research on Stagger Coupling Mode of Pulse Duration and Tool Vibration in Electrochemical Machining." Applied Sciences 8, no. 8 (August 3, 2018): 1296. http://dx.doi.org/10.3390/app8081296.

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Tuning the coupling of pulse duration and tool vibration in electrochemical machining (PVECM) is an effective method to improve machining accuracy and surface quality. In general, the pulse is set at the same frequency as the tool vibration, and a symmetrical distribution is attained at the minimum inter-electrode gap. To analyse the characteristics of the electrolyte fluid flow and of the electrolysis products in the oscillating inter-electrode gap, a dynamic simulation of the PVECM process was carried out. The simulation results indicated that the electrolyte pressure and gas void fraction when the pulse arrived as the inter-electrode gap was narrowing clearly differed from those when the inter-electrode gap was expanding. Therefore, in addition to the traditional symmetry coupling mode, two other coupling modes called the pre-position and the post-position coupling modes are proposed which use a pulse either just before or just after the minimum inter-electrode gap. Comparative experiments involving the feed rate and machining localization were carried out to evaluate the influence of the three coupling modes. In addition, current waveforms were recorded to analyse the differences between the three coupling modes. The results revealed that the highest feed rate and the best machining localization were achieved by using the pre-position coupling mode.
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17

Takata, M., R. M. Ouazzani, H. Saio, S. Christophe, J. Ballot, V. Antoci, and S. J. A. J. Salmon. "Inferring the internal structure of γ Doradus variables from Rossby modes." Astronomy & Astrophysics 644 (December 2020): A138. http://dx.doi.org/10.1051/0004-6361/202038098.

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A unique type of oscillation modes has recently been identified in γ Doradus variables. These low-frequency modes are called Rossby modes (or r modes) because they consist of Rossby waves in each spherical layer. These waves are characterised by toroidal motions that are restored by the latitudinal variation in the Coriolis force. The horizontal oscillations are weakly coupled in the radial direction. We show that these modes can be used to probe the interior of the stars. The method of the ν − √Δν diagram, which has originally been developed to analyse another type of modes, Kelvin g-modes (or prograde sectoral g-modes), is extended to take Rossby modes into account. We first show based on a theoretical model and then on two stars, KIC 3240967 and KIC 12066947, that the method can be adapted to Rossby modes straightforwardly. In addition, we demonstrate that simultaneous analysis of Kelvin and Rossby modes results in (1) smaller uncertainties in the internal rotation rate and the characteristic period of gravity modes, and (2) a substantial reduction of the correlation between the estimates of the two parameters.
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18

Serhir-Taleb, Najat, and Claude Marche. "Une analyse numérique des possibilités de résonance d'un bassin portuaire de profondeur variable." Canadian Journal of Civil Engineering 16, no. 4 (August 1, 1989): 467–76. http://dx.doi.org/10.1139/l89-076.

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Creating, enlarging and excavating a harbour can modify the dynamic response of the basin. A verification of the resonance modes is common practice before undertaking the related work. This can be done numerically if the necessary assumptions are justifiable. It can be done on a small-scale model if the basin has an irregular shape or if the depth varies from one area to the other.A computer-programmed analytical method of resonance modes is presented. It is derived from the direct measure principle of successive oscillation superposition used in the laboratory. Validation is obtained by applying the method to existing theoretical solutions and to the analysis of a small creek of the Gaspe Peninsula where the importance of refraction in the analytical results is demonstrated. Key words: harbour, vibration, agitation, ocean waves, diffraction, refraction, numerical model, application. [Journal translation]
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19

Pan, Juntao, Jue Zhang, Carl Blair, Aaron W. Jones, Chunnong Zhao, and Li Ju. "Parametric instability in the neutron star extreme matter observatory." Classical and Quantum Gravity 39, no. 8 (March 24, 2022): 085007. http://dx.doi.org/10.1088/1361-6382/ac5a15.

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Abstract Parametric instability (PI), induced by the interaction between the cavity optical modes and acoustic modes of a mirror, is an inherent risk in interferometric gravitational wave detectors. The instability can result in exponential growth in acoustic mode amplitude and the saturation of detectors control systems. In this paper we analyse PI in the neutron star extreme matter observatory, a proposed high optical power (4.5 MW) detector, operating at cryogenic temperatures with silicon test masses (TMs), targeting high sensitivity between 1 and 4 kHz. Our results show that with current design parameters, approximately 16 unstable modes will arise per TM with maximum parametric gain ∼10. Varying the TM radius of curvature from the nominal values could eliminate PI, however not with current manufacture or actuator capability. PI mitigation will be required to suppress all unstable modes. This analysis identifies four optical modes and 16 acoustic modes dominating PI in NEMO paves the way for the design of PI mitigation strategies.
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20

Caët, Stéphanie, Christine Da Silva-Genest, Lucie Macchi, Cédric Patin, Ingrid Gibaru, and Isabelle Dumoulin. "Co-analyse des modes d'intervention orthophoniques : mise en place d'une collaboration orthophonistes-linguistes." Travaux neuchâtelois de linguistique, no. 74 (January 1, 2021): 47–65. http://dx.doi.org/10.26034/tranel.2021.2912.

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This paper presents the collaborative establishment of a group of speech and language pathologists (SLP) and linguists that focuses on scaffolding and its effects in interactions during therapy. Based on transcribed audio recordings made by the practitioners themselves, qualitative analyses were collectively conducted and individual scaffolding objectives relating to specific therapeutic goals were identified by the SLP. Quantitative analyses on two dyads suggest that the qualitative analyses conducted in the group influenced the SLP's productions which in turn might have had an impact on the children's productions. We discuss the need to use baselines adapted to ecological settings in further studies, to better evaluate the effects of other internal and external factors. We conclude by considering the benefits of this type of collaboration both for practitioners and linguists.
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21

Kreisel, Volkmar. "PILOTSTUDIE: VNS-ANALYSE BEI NIR-LASER-FELD-THERAPIE MIT CW VERSUS PULSED MODES." Akupunktur & Aurikulomedizin 46, no. 3 (September 2020): 28–36. http://dx.doi.org/10.1007/s15009-020-5675-0.

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22

Gardet, Elodie, and Caroline Mothe. "Quels modes de coordination dans les réseaux d’innovation centrés ?" Management international 14, no. 2 (April 14, 2010): 83–103. http://dx.doi.org/10.7202/039550ar.

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Résumé Comprendre la manière dont les entreprises se coordonnent au sein de réseaux interorganisationnels est crucial pour réussir un projet d’innovation. Cet article analyse cinq modes de coordination : les garanties, la répartition des résultats, le degré de formalisme, la résolution de conflit et la confiance. La recherche qualitative menée sur trois réseaux d’innovation fait ressortir que les modalités de coordination choisies par le pivot varient selon l’existence (ou non) de relations antérieures et selon son degré de dépendance envers les autres membres. Quatre configurations permettent aux pivots de déterminer les modalités les plus adéquates pour mener à bien leur projet.
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23

Pontin, C. M., A. J. Barker, R. Hollerbach, Q. André, and S. Mathis. "Wave propagation in semiconvective regions of giant planets." Monthly Notices of the Royal Astronomical Society 493, no. 4 (March 13, 2020): 5788–806. http://dx.doi.org/10.1093/mnras/staa664.

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ABSTRACT Recent observations of Jupiter and Saturn suggest that heavy elements may be diluted in the gaseous envelope, providing a compositional gradient that could stabilize ordinary convection and produce a stably stratified layer near the core of these planets. This region could consist of semiconvective layers with a staircase-like density profile, which have multiple convective zones separated by thin stably stratified interfaces, as a result of double-diffusive convection. These layers could have important effects on wave propagation and tidal dissipation that have not been fully explored. We analyse the effects of these layers on the propagation and transmission of internal waves within giant planets, extending prior work in a local Cartesian model. We adopt a simplified global Boussinesq planetary model in which we explore the internal waves in a non-rotating spherical body. We begin by studying the free modes of a region containing semiconvective layers. We then analyse the transmission of internal waves through such a region. The free modes depend strongly on the staircase properties, and consist of modes with both internal and interfacial gravity wave-like behaviour. We determine the frequency shifts of these waves as a function of the number of steps to explore their potential to probe planetary internal structures. We also find that wave transmission is strongly affected by the presence of a staircase. Very large wavelength waves are transmitted efficiently, but small-scale waves are only transmitted if they are resonant with one of the free modes. The effective size of the core is therefore larger for non-resonant modes.
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24

Zhang, Fang, Sheng Bai, and Jin Feng Hao. "The Research of Concrete Short Columns Strengthed with Angle Steel." Advanced Materials Research 941-944 (June 2014): 877–82. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.877.

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Through the analysis of the possibilities of failure modes of RC short columns and advantages of outsourcing steel stick hair,put forward the method of reinforced concrete column strengthened with angle steel,and analyse its reinforcement effect through the experiment.
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25

Xi, Li He, Hong Wei Chen, and Xin Zhang. "Bond Graph Modeling and Analysis of HEV System Based on Ravigneaux Planetary Mechanism." Advanced Materials Research 724-725 (August 2013): 1402–8. http://dx.doi.org/10.4028/www.scientific.net/amr.724-725.1402.

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The bond graph method is used to analyse and model dynamics of hybrid electric system based on Ravigneaux Planetary Mechanism. Bond graph models are built in different structural form, general equations of torque and speed are derived, and operating modes achieved in different structural form are in consideration. At the same time, requirements of control system in different operating modes are illustrated and analysed, which help lay the foundations for modeling and simulation of HEV system based on Ravigneaux Planetary Mechanism.
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26

Sardanyés, Josep, Fernando Martínez, José-Antonio Daròs, and Santiago F. Elena. "Dynamics of alternative modes of RNA replication for positive-sense RNA viruses." Journal of The Royal Society Interface 9, no. 69 (September 7, 2011): 768–76. http://dx.doi.org/10.1098/rsif.2011.0471.

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We propose and study nonlinear mathematical models describing the intracellular time dynamics of viral RNA accumulation for positive-sense single-stranded RNA viruses. Our models consider different replication modes ranging between two extremes represented by the geometric replication (GR) and the linear stamping machine replication (SMR). We first analyse a model that quantitatively reproduced experimental data for the accumulation dynamics of both polarities of turnip mosaic potyvirus RNAs. We identify a non-degenerate transcritical bifurcation governing the extinction of both strands depending on three key parameters: the mode of replication ( α ), the replication rate ( r ) and the degradation rate ( δ ) of viral strands. Our results indicate that the bifurcation associated with α generically takes place when the replication mode is closer to the SMR, thus suggesting that GR may provide viral strands with an increased robustness against degradation. This transcritical bifurcation, which is responsible for the switching from an active to an absorbing regime, suggests a smooth (i.e. second-order), absorbing-state phase transition. Finally, we also analyse a simplified model that only incorporates asymmetry in replication tied to differential replication modes.
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Dubé, Sébastien. "Les systèmes électoraux et les modes de scrutin, 3e édition." Canadian Journal of Political Science 39, no. 3 (September 2006): 707–9. http://dx.doi.org/10.1017/s0008423906329976.

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Les systèmes électoraux et les modes de scrutin, 3eédition, Pierre Martin, Paris : Montchrestien, 2006, 156 pages.Dans la troisième édition de son ouvrage Les systèmes électoraux et les modes de scrutin, Pierre Martin avance deux idées principales. La première est que les modes de scrutin sont les produits des systèmes politiques “ et vice versa ” (p. 10). Par cette position, l'auteur rejette le déterminisme sous-jacent à certaines études sur les modes de scrutin qui tendent à “ surestimer leur effet ” (p. 135). Après tout, analyse-t-il, “ [l]eur influence sur la structuration des systèmes partisans et la répartition des votes des électeurs entre les partis est faible et absolument pas décisive. ” La deuxième idée, complémentaire de la précédente, soutient que “ les systèmes partisans résultent principalement de l'influence de la sociologie et de l'histoire ” (p. 113).
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28

Ouellet, Christine, and Pierre Richard. "Éléments d’approche intégrée en travail social : analyse d’une expérience en milieu scolaire." Service social 36, no. 2-3 (April 12, 2005): 387–96. http://dx.doi.org/10.7202/706369ar.

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À partir d'une situation d'intégration scolaire à l'école du village, les auteurs montrent les limites de la pratique du cas par cas et mettent de l'avant le besoin d'un renouveau dans la pratique sociale. Une expérience de concertation de différents établissements socio-sanitaires et scolaires montre les possibilités de modification des approches et l'élaboration de modes d'interventions institutionnels différents.
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29

Mennesson, Christine, and Romain Galissaire. "Les femmes guides de haute montagne : modes de socialisation et identités sexuées." Articles 17, no. 1 (October 29, 2004): 111–41. http://dx.doi.org/10.7202/009298ar.

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Résumé Cet article analyse les modes d’engagement et les identités sexuées des dix femmes exerçant le métier de guide de haute montagne en France. Deux modes de découverte des activités de montagne ainsi qu’une socialisation sexuée enfantine au sein du groupe des pairs masculins favorisent l’investissement des femmes dans les pratiques sportives de haute montagne. Par ailleurs, si les femmes guides partagent une vision globalement négative des femmes au foyer comme des militantes féministes, elles se réfèrent néanmoins à des formes identitaires différentes pour se définir.
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30

Saeys, W., J. Xing, J. De Baerdemaeker, and H. Ramon. "Comparison of Transflectance and Reflectance to Analyse Hog Manures." Journal of Near Infrared Spectroscopy 13, no. 2 (April 2005): 99–107. http://dx.doi.org/10.1255/jnirs.462.

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In this study, the reflectance and transflectance sample presentation mode were compared for the analysis of the nutrient content of hog ( Sus domesticus) manure using visible and near infrared (vis-NIR) spectroscopy. A total of 194 hog manures, which were collected in the spring of 2004 from farms in the northern part of Belgium, were assayed by conventional wet chemical analysis and spectroscopy for the following constituents: dry matter content (DM), organic matter content (OM), pH, total Kjeldahl nitrogen (Ntot), ammonium nitrogen (NH4-N), phosphorus (P), potash (K), calcium (Ca), sodium (Na) and magnesium (Mg). Samples were scanned with a Foss NIRSystems Model 6500 scanning monochromator in reflectance and transflectance mode, respectively. A ceramic reference was measured in between the two modes. The monochromator was equipped with a DCFA sample presentation unit and ranges from 400 to 2498 nm. Partial least squares regression was employed to relate the spectral information to the nutrient content. The PLS models were calibrated for both sample presentation modes using leave-one-out cross-validation. The results of this study showed that the transflectance mode performed better than the reflectance mode. From the transflectance measurements, very good quantitative predictions for total N, good quantitative predictions for K, DM and OM, approximate predictions for NH4-N, P and Mg, very approximate predictions for Ca and a discrimination between high and low values for Na were obtained. pH was not predictable. The reflectance measurements were able to provide good quantitative predictions for total N and K, approximate quantitative predictions for NH4-N, very approximate predictions for DM, OM, P and Mg and discrimination between high and low values for Ca. Na was even less predictable and pH might be unpredictable.
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REZNIK, G. M., and V. ZEITLIN. "Resonant excitation of trapped waves by Poincaré waves in the coastal waveguides." Journal of Fluid Mechanics 673 (February 24, 2011): 349–94. http://dx.doi.org/10.1017/s0022112010006300.

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After having revisited the theory of linear waves in the rotating shallow-water model with a straight coast and arbitrary shelf/beach bathymetry, we undertake a detailed study of resonant interaction of free Poincaré waves with modes trapped in the coastal waveguide. We describe and quantify the mechanisms of resonant excitation of waveguide modes and their subsequent nonlinear saturation. We obtain the modulation equations for the amplitudes of excited waveguide modes in the absence and in the presence of spatial modulation and analyse their solutions. Different saturation regimes are exhibited, depending on the nature of the modes involved. The excitation is proved to be efficient, i.e. the saturated amplitudes of the excited waves considerably exceed the amplitude of the generator waves. Back-influence of the excited waveguide modes onto the open ocean results in a phase shift of the reflected Poincaré waves and possible energy redistribution between them. A comparison of rotating and non-rotating cases displays substantial differences in excitation mechanisms in the two cases.
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DAS, C. R., S. DIGAL, and T. R. GOVINDARAJAN. "SPONTANEOUS SYMMETRY BREAKDOWN IN FUZZY SPHERES." Modern Physics Letters A 24, no. 33 (October 30, 2009): 2693–701. http://dx.doi.org/10.1142/s021773230902859x.

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We study and analyse the questions regarding breakdown of global symmetry on noncommutative sphere. We demonstrate this by considering a complex scalar field on a fuzzy sphere and isolating Goldstone modes. We discuss the role of nonlocal interactions present in these through geometrical considerations.
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33

PARRAS, L., and R. FERNANDEZ-FERIA. "Spatial stability and the onset of absolute instability of Batchelor's vortex for high swirl numbers." Journal of Fluid Mechanics 583 (July 4, 2007): 27–43. http://dx.doi.org/10.1017/s0022112007005952.

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Batchelor's vortex has been commonly used in the past as a model for aircraft trailing vortices. Using a temporal stability analysis, new viscous unstable modes have been found for the high swirl numbers of interest in actual large-aircraft vortices. We look here for these unstable viscous modes occurring at large swirl numbers (q > 1.5), and large Reynolds numbers (Re >103), using a spatial stability analysis, thus characterizing the frequencies at which these modes become convectively unstable for different values of q, Re, and for different intensities of the uniform axial flow. We consider both jet-like and wake-like Batchelor's vortices, and are able to analyse the stability for Re as high as 108. We also characterize the frequencies and the swirl numbers for the onset of absolute instabilities of these unstable viscous modes for large q.
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34

Navoichik, Evgeniya Yu. "Social and Individual Modes in “Pedagogical Attitude” As a Space of Understanding." Review of Omsk State Pedagogical University. Humanitarian research, no. 30 (2021): 25–28. http://dx.doi.org/10.36809/2309-9380-2021-30-25-28.

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In the article, in the context of the ideas of the hermeneutic approach, the problem of one-sided understanding of the influence of pedagogical theories and social context on educational practice is considered. The hermeneutic approach makes it possible to analyse the concept of “pedagogical attitude”, in which not only the social context and approaches of science, but also the intentions of the subjects of education, matter.
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35

Zalipaev, V. V., A. B. Movchan, and I. S. Jones. "Waves in lattices with imperfect junctions and localized defect modes." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 464, no. 2096 (April 9, 2008): 2037–54. http://dx.doi.org/10.1098/rspa.2007.0255.

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A correspondence between continuum periodic structures and discrete lattices is well known in the theory of elasticity. Frequently, lattice models are the result of the discretization of continuous mechanical problems. In this paper, we discuss the discretization of two-dimensional square thin-walled structures. We consider the case when thin-walled bridges have defects in the vicinity of junctions. At these points, the displacement satisfies an effective Robin-type boundary condition. We study a defect vibration mode localized in the neighbourhood of the damaged junction. We analyse dispersion diagrams that show the existence of standing waves in a structure with periodically distributed defects.
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36

Sikka, Sonia. "“Learning to Be Indian”: Historical Narratives and the “Choice” of a Cultural Identity." Dialogue 43, no. 2 (2004): 339–54. http://dx.doi.org/10.1017/s0012217300003541.

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RésuméCet article analyse le besoin qu'éprouvent certaines personnes de se «reconnecter», ou renforcer lews liens, à une culture dans laquelle elles n'ont jamais été enchâssées, eu égard aux critères auxquels se mesure généralement un tel enchâssement (langue, valeurs, croyances, modes de vie, coutumes religieuses, etc.). Situant les résultats de son analyse par rapport à la pensée de Kymlicka et autres, il fait valoir que des facteurs tels que les liens de parenté, l'identification à autrui et l'expérience du racisme déterminent largement quel est le groupe culturel que les individus parviennent à considérer comme le leur.
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37

Wesener, Gunter. "Pascal Pichonnaz, La compensation. Analyse historique et comparative des modes de compenser non conventionnels." Zeitschrift der Savigny-Stiftung für Rechtsgeschichte. Romanistische Abteilung 121, no. 1 (August 1, 2004): 605–13. http://dx.doi.org/10.7767/zrgra.2004.121.1.605.

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38

Nevo, Saggi, and Henry Kim. "How to compare and analyse risks of internet voting versus other modes of voting." Electronic Government, an International Journal 3, no. 1 (2006): 105. http://dx.doi.org/10.1504/eg.2006.008495.

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39

FRANCES, A., G. CHATEL, and A. ROURE. "ANALYSE DU RAYONNEMENT ACOUSTIQUE D'UNE PLAQUE AVEC CONTROLE ACTIF DE L'AMPLITUDE DES PREMIERS MODES." Le Journal de Physique Colloques 51, no. C2 (February 1990): C2–205—C2–208. http://dx.doi.org/10.1051/jphyscol:1990249.

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40

Kiracı, Kasım, and Akan Ercan. "Empirical Analysis of the Relationship between Trade Wars and Sea-Air Transportati." Economics and Business Review 6 (20), no. 3 (2020): 23–44. http://dx.doi.org/10.18559/ebr.2020.3.2.

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The aim of this paper is to empirically analyse the relationship between the trade wars and modes of transport for selected countries. For this purpose the causality relationship between trade value and sea transport / air transportation for EU-G20 and US-G20 countries was examined. Panel causality analysis was used as a method in the study. The empirical findings of the study show the existence of a causality relationship between the trade value and modes of transport (sea transport and air transport) for country groups. This shows that the countries' sea and air transport will be adversely affected by trade wars.
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DORAY, Pierre, and Monique TURCOT. "Traduction et modes de transformations des programmes de formation professionnelle." Sociologie et sociétés 23, no. 1 (September 30, 2002): 87–107. http://dx.doi.org/10.7202/001196ar.

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Résumé À l'aide d'une étude de cas, nous examinons le travail de construction et de reformulation des programmes de formation professionnelle comme pratique d'institutionnalisation de savoirs en contexte organisationnel. Notre analyse s'appuie sur les catégories de la sociologie de la traduction. Elle souligne la diversité des enjeux et des retombées d'une réforme qui dépasse largement la formalisation des contenus de formation. En effet, les cadres institutionnels qui guident la formalisation des savoirs et qui balisent le processus de réforme font eux-mêmes l'objet de négociations. Nous indiquons aussi en quoi cet ajustement aux formes institutionnelles a un effet direct sur la constitution des spécialités techniques et sur l'identité professionnelle des techniciens formés.
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42

Collet, Claude. "Voiron-Canicio, Christine (1995) Analyse spatiale et analyse d’images. Montpellier. GIP RECLUS (Coll. « Espaces modes d’emploi »), 190, (ISBN 2-86912-062-9)." Cahiers de géographie du Québec 41, no. 112 (1997): 115. http://dx.doi.org/10.7202/022636ar.

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43

van Wijk-Herbrink, Marjolein F., Jeffrey Roelofs, Nick J. Broers, Marleen M. Rijkeboer, Arnoud Arntz, and David P. Bernstein. "Validation of Schema Coping Inventory and Schema Mode Inventory in Adolescents." Journal of Personality Disorders 32, no. 2 (April 2018): 220–41. http://dx.doi.org/10.1521/pedi_2017_31_295.

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This study investigated whether the schema therapy constructs of schema coping and schema modes have val dity in adolescents. We examined the validity and reliability of the Schema Coping Inventory (SCI) and an 80-item version of the Schema Mode Inventory (SMI) in a mixed sample of adolescents. Confirmatory factor analyse showed that the first-order factor structures of the SCI and SMI were replicated, but that the hypothesized higher-order models of the SMI were not confirmed. Instead, we proposed an alternative higher-order model of Internalizing, Externalizing, Overachieving, and Healthy modes. In general, the SCI and SMI scales were able o distinguish the clinical sample from the community sample, and meaningful relationships were found between oping styles, schema modes, and behavior problems. In conclusion, our study supports the theorized relations ips between schema coping styles, schema modes, and behavior, problems in adolescents, and provides initial validation for the SCI and the, 80-item SMI in adolescent populations.
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44

Kasparian, Sylvia, and Aram Kerovpyan. "Structure modale des charagan - chants liturgiques arméniens - à la lumière du logiciel Sphinx : le genre, les espèces et leurs combinaisons dans la IVe Voix." Articles 45, no. 1-2 (February 8, 2017): 233–54. http://dx.doi.org/10.7202/1038910ar.

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Cet article se veut une étude originale d’application des méthodes d’analyse de données textuelles à des corpus musicaux. Aucune étude en musicologie moderne n’a encore décrit en détail le système modal en usage dans le répertoire des charagan, chants liturgiques arméniens. Dans ce répertoire, on peut déceler une vingtaine de modes musicaux qui semblent avoir été classés par convention dans un système symbolique d’oktoechos (huit modes). Ceci donne à chacun des modes de l’oktoechos le caractère d’une famille de modes plutôt que d’un seul mode spécifique. Dans cet article, nous présentons une première étape de la description de six versions différentes de 42 chants. En tout, 728 versets découpés en unités de phrases, formules, motifs, degrés ont été analysés avec le logiciel Sphinx. Notre analyse avec Sphinx permet une première description de la structure modale des charagan, faisant ressortir les spécificités des différentes versions, des degrés et des motifs propres aux différentes formules initiales, médiane et finale de ces chants.
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45

Brattkus, Kirk. "Directional solidification into static stability." Journal of Fluid Mechanics 304 (December 10, 1995): 143–59. http://dx.doi.org/10.1017/s002211209500437x.

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Consider the directional solidification of a binary alloy rejecting a heavy solute as it solidifies upward. If the solidification front is planar, the fluid melt ahead of the front is stably stratified and convection is not expected. In this paper we analyse the linear stability of planar solidification asymptotically in the limit of large solutal Rayleigh number, R. Three distinct linear modes are found which correspond to internal waves, buoyancy edge waves, or morphological modes. Of these three modes, only the morphological modes are subject to an instability. We find that for large Rayleigh number this instability first occurs at long wavelengths with wavenumbers that scale on R−1/14. The scalings derived from the linear analysis are used to construct a nonlinear theory for the morphological instability in the large Rayleigh number limit. Similarity solutions are found which describe steadily convecting, non-planar growth reminiscent of an observed phenomenon known as steepling.
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46

Movchan, Alexander B., and Leonid I. Slepyan. "Band gap Green's functions and localized oscillations." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 463, no. 2086 (July 31, 2007): 2709–27. http://dx.doi.org/10.1098/rspa.2007.0007.

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We consider some typical continuous and discrete models of structures possessing band gaps, and analyse the localized oscillation modes. General considerations show that such modes can exist at any frequency within the band gap provided an admissible local mass variation is made. In particular, we show that the upper bound of the sinusoidal wave frequency exists in a non-local interaction homogeneous waveguide, and we construct a localized mode existing there at high frequencies. The localized modes are introduced via the Green's functions for the corresponding uniform systems. We construct such functions and, in particular, present asymptotic expressions of the band gap anisotropic Green's function for the two-dimensional square lattice. The emphasis is made on the notion of the depth of band gap and evaluation of the rate of localization of the vibration modes. Detailed analysis of the extremal localization is conducted. In particular, this concerns an algorithm of a ‘neutral’ perturbation where the total mass of a complex central cell is not changed
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47

Vílchez, Montse, Pilar Díaz-Carrasco, María Clavero, Miguel Ortega-Sánchez, and Miguel A. Losada. "VERIFICATION OF THE CROWN WALL STABILITY TAKING INTO ACCOUNT THE HYDRAULIC PERFORMANCE CURVES." Coastal Engineering Proceedings, no. 35 (June 23, 2017): 10. http://dx.doi.org/10.9753/icce.v35.structures.10.

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The design of a breakwater requires that the failure modes which can affect its security, functionality and operationality in its useful life are bounded. The failure modes can be verified by means of the corresponding verification equation. In this work, a unified methodology to verify simultaneously the failure modes produce by wind waves in front or face of the breakwater is presented. This methodology is based on formulate the verification equations of the failure modes forced by wind waves in the front or face of the breakwater in terms of the kinematic and dynamic variables of the flow at these locations. It has been applied to analyse the failure mode that considers sliding of the crown wall. Results show that the parameters of the pdf of these variables depend on the total wave height at the same location and therefore, the verification equation can be also formulated in terms of this variable.
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48

Menshikov, P. V., and M. R. Arpentieva. "Criteria to analyse the didactic communication strategies." Professional education in the modern world 11, no. 4 (February 26, 2022): 97–107. http://dx.doi.org/10.20913/2618-7515-2021-4-11.

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A key factor of the educational process success is psychological competently built didactic communication between a student and teacher. The problem is only the lack of both methodological unity in the general, theoretical analysis of the phenomenon of didactic communication itself, and the patchwork of practices aimed to optimize the didactic communication real process. The study objective is to analyse the didactic communication criteria between a teacher and student, their understanding as the basis for selection and comparative analysis of different strategies of the teacher and student didactic communication. The paper carries out a meaningful analysis of the teacher-student didactic communication criteria: educational interaction key constructs, its different sides and aspects in the ideas of the teacher; communication space and time modes, «the learning effect concepts», the image of a student in teacher ideas, typical communication means; a didactic communication organizational form reproduced by a teacher; the teacher communicative self-identification and research tools, the didactic communication correction. As study results, the authors conclude that at an infinite variety of individual-personal shades of didactic communication, in general, it seems possible to single out historically changing common, covering most of the teaching community, systems of ideas on the optimal strategy of educational interaction with students.
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Bérubé1, Maxime, and Aurélie Campana. "Les violences motivées par la haine. Idéologies et modes d’action des extrémistes de droite au Canada." Criminologie 48, no. 1 (April 1, 2015): 215–34. http://dx.doi.org/10.7202/1029355ar.

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Bien que les violences politiques soient, depuis le début du siècle, principalement abordées sous l’angle de l’extrémisme islamiste, les crimes motivés par la haine existaient au Canada bien avant les attentats du 11 septembre 2001. Notamment, plusieurs groupes d’extrême droite y ont toujours défendu leurs idéologies racistes et fascistes en utilisant différentes formes de violence pour se faire entendre. Cette étude se propose d’explorer ce phénomène par une analyse des principaux modes d’action utilisés et thèses véhiculées par la commission d’actes de violence haineuse en sol canadien entre 1977 et 2010. L’approche méthodologique mixte s’appuie sur un total de 214 crimes haineux répertoriés pendant la période étudiée. Les résultats démontrent, d’une part, une forme de traditionalisme dans les modes d’action choisis et, d’autre part, une relation inversement liée entre la fréquence des idéologies mises en cause et la gravité des modes d’action utilisés.
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50

Dunezat, Xavier. "L’articulation entre travail domestique et travail militant. Le cas des « mouvements de sans » en France." Articles 30, no. 2 (March 12, 2018): 255–75. http://dx.doi.org/10.7202/1043932ar.

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À partir d’enquêtes ethnographiques – par observation participante, entretien, questionnaire – dans quatre mobilisations dites de sans (chômeurs et chômeuses, sans-papiers), l’auteur analyse les modes d’articulation entre travail domestique et travail militant en termes de consubstantialité des rapports sociaux de sexe, de classe et de race. Il montre que l’accès au militantisme est clivé par la polarisation et la diversité sexuées des expériences du travail domestique (exploiteur/exploitée versus abandon, autonomie, partage, privation). D’une part, les logiques domestiques orientent les modes d’entrée et d’inscription dans le travail militant. D’autre part, les formes de la division du travail militant ont des effets ambivalents sur l’assignation domestique des femmes.
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