La thèse examine la relation entre le mouvement ouvrier français et le cinéma au début du XXe siècle, plus précisément de 1895 à 1914. Elle s'articule autour de l'expérience spécifique de la coopérative Cinéma du Peuple, qui a duré d'octobre 1913 à juillet 1914. La coopérative Cinéma du Peuple participa à l'adhésion d'une partie des militants aux ressources du cinéma, sensible à partir de 1909, date à laquelle le processus d'industrialisation du film en France était déjà très avancé. Transmise au-delà de 1914, l'expérience du Cinéma du Peuple, première tentative ouvrière organisée d'appropriation du cinéma, a posé les fondements d'un nouveau terrain d'intervention en vue d'une hégémonie dans le champ culturel prolongée jusqu'à nos jours. L'hypothèse est que le public -catégorie d'analyse dans une échelle alternative de celle de masse, ou de spectateur -a montré, avec l'expérience du Cinéma du Peuple, qu'il n'est pas, par nature et de façon in-évocable, prisonnier des films commerciaux et des intérêts des distributeurs. À partir des notions de répertoire d'action, et de l'expérience de la domination idéologique par le cinéma commercial, nous nous efforçons de cerner les contours de ce public, pour partie confondu avec celui du mouvement ouvrier, notamment au moyen des trajectoires collectives et individuelles des initiateurs, propagandistes du Cinéma du Peuple et de ses spectateurs. En même temps, nous nous proposons de montrer à partir de l'analyse des films du Cinéma du Peuple le début de la formation d'un nouveau mode de représentation du monde ouvrier. / The thesis examines the relationship between the French working class movement and the cinema at the beginning of the 20th century, specifically from 1895 to 1914. 1t focuses on the specific experience of the cooperative Cinéma du Peuple, which lasted from October 1913 to July 1914. The cooperative Cinéma du Peuple took part of militant cinema in France, which was barely begun from 1909 on when the industrialization process of the film in France was already advanced. Transmitted beyond 1914, the experience of the Cinéma du Peuple, first working class movement organized attempt to film appropriation, laid the foundations of a new ground of intervention in a prolonged hegemony in the cultural field until the present days. The assumption is that the public - a category of analysis in an alternative scale than mass or spectator - showed, with the experience of Cinéma du Peuple, that it is not by nature and so irrevocable way a prisoner of the commercial films and the interests of distributors. From the concepts of repertoire of contention, and the experience of the ideological domination of commercial cinema, we strive to identify the contours of that public, partly coïncident with the working class movement, mostly through collective and individual militants' trajectories, propagandists of the Cinéma du Peuple and its public. At the same time, we intend to bring from the analysis of the Cinéma du Peuple's films the beginning of the formation of a new mode of representation of the working class.

Made available in DSpace on 2016-04-25T19:20:40Z (GMT). No. of bitstreams: 1 Dissertacao Cristiane Moreira Cobra.pdf: 473312 bytes, checksum: d1b9dde9c5ab70a101b4c2b0e7c58e15 (MD5) Previous issue date: 2006-05-19 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This work is the result of a bibliographic and theorical research about Patativa do Assaré´s poetry. It ascertains that the poetical discourse present in his work indicates the elaboration of contention and resistance concerning the inequality lived by his group, which uses the popular Christian religiosity as reference. The memory, orality, re-signification of concepts instituted by Church´s ortodoxy as well as the approach of pertinent themes to the members of this group are emphasized as elements of his resistent poetry. The analytical interpretation of the poems is based on the literary theory of Alfredo Bosi, the idea of identity metamorphosis developed by Ciampa as well as the analysis of Culture developed by Renato Ortiz and Clifford Geerts. Patativa makes use of the Christian Catholic religious imaginary as source of sense and meaning. He reveals to the popular culture typical forms of understanding the religiosity and the idea of Divine Providence. Furthermore he recreates, re-elaborates, re-invents and re-signifies these popular ways of attributing sense and meaning to the reality. When translated into utopia the contesting aspect present in Patativa´s poetry denotes a form of resistance. His poems manifest prayer, prophecy, value and critical conciousness of past and present, as well as hope based on popular Christian faith. The poetical discourse reveals itself as prophetic. This work contributes to the discussion about religiosity and Brazilian popular culture regarding the elaboration of a popular poetical hermeneutics. Besides, it propitiates a conception of the popular literature under models until then proclaimed as erudite. Its main conclusion is that the popular poetry of Patativa corroborates the constitution of a northeastern identity when it brings back the memory, the values, as well as the group´s self steem. Considering the identity process as a metamorphosis, which includes environmental and inner circumstances, the discourse produced by the poet is manifested as creative hermeneutics which brings sense to the world / Este trabalho é fruto de uma pesquisa bibliográfica e teórica sobre a poesia de Patativa do Assaré; constata que o discurso poético constituído em sua obra aponta para elaboração de uma forma de contestação e resistência diante das desigualdades vivenciadas pelo seu grupo, que toma por referência a religiosidade cristã popular. Como elementos dessa poética resistente ressaltamos a memória, a oralidade, a ressignificação de conceitos instituídos pela ortodoxia da Igreja, bem como a abordagem de temas pertinentes aos membros desse grupo. A interpretação analítica dos poemas tem como referências a teoria literária de Alfredo Bosi, a idéia de metamorfose identitária desenvolvida por Ciampa, bem como as análises da Cultura desenvolvidas por Renato Ortiz e Clifford Geertz. Patativa recorre ao imaginário religioso cristão católico como fonte de sentido e significado, revelando formas típicas à Cultura Popular de compreensão da religiosidade e da idéia de Divina Providência; não somente revela, mas recria, reelabora, reinventa e ressignifica essas maneiras populares de atribuir sentido e significado à realidade. O aspecto contestatório presente na poesia de Patativa significa uma forma de resistência ao traduzir-se em utopia; seus poemas revelam-se prece e profecia, valorização e consciência crítica do passado e do presente, bem como esperança no futuro com bases na fé cristã popular. O discurso poético se mostra assim discurso profético. O trabalho contribui com a discussão sobre a religiosidade e a cultura popular no Brasil ao considerar a elaboração de uma hermenêutica poética popular, além disso, propicia uma consideração da literatura popular sob moldes até então proclamados como eruditos. Sua conclusão principal é que a poética popular de Patativa corrobora a constituição de uma identidade nordestina ao resgatar a valorização da memória, dos valores, bem como da auto-estima desse grupo; considerando o processo identitário como metamorfose que inclui condições do meio e condições internalizadas, o discurso elaborado pelo poeta revela-se como hermenêutica criativa, como forma de significar e doar sentido ao mundo

The objective of the research is to design an electro-optic control for the Active Vertical Coupler-based Optical Cross-point Switch (OXS). The electronic control should be implemented on Printed Circuit Board (PCB) and therefore the design will include the PCB design as well. The aim of the electronic control board is to process the headers of the packets prior to entering the OXS to be switched and from the information in the headers, determine the state that the OXS should be configured in. It should then configure the optical cross-point accordingly. The electronic control board should show flexibility in the sense that it can handle different types of traffic and resolve possible contention that may occur. The research seeks to understand the problems associated with Photonic Packet Switching (PPS) networks. Two of the main problems identified in a PPS network are contention resolution and the lack of variable delays for storing optical packets. The OXS was analyzed and found to meet the requirements for future ultra-high speed PPS network technology with its high extinction ratio, wide optical bandwidth, ultra-fast switching speed and low crosstalk levels. Photonic packets were generated with 4-bit, 8-bit or 16-bit headers at a bit rate of 155 Mbit/s followed by a PRBS (Pseudo Random Bit Sequence) payload at 10 Gbit/s. Different scenarios were created with these types of packets and the electro-optic control and OXS were subjected to these scenarios with the aim of testing the flexibility of the electro-optic control to control the OXS. These scenarios include: <ul><li>Fixed length packets arriving synchronously at one input of the OXS. Some packets are destined for output 1, some are destined for output 2 and some are destined for output 3, therefore realizing a 1-to-3 optical switch.</li> <li>Eight variable length packets arriving synchronously at the OXS at one input, all of them destined for one output. The electro-optic control should open the switch cell for the correct amount of time.</li> <li>Three variable length packets arriving synchronously and asynchronously at one input of the OXS. Some packets are destined for output 1 while other packets are destined for output 2. The electro-optic control should open the correct switch cell for the correct amount of time.</li> <li>Two fixed length packets arriving at the OXS synchronously on different input ports at the same time, both destined for the same output port. The electro-optic control should detect the contention and switch the packets in such a way as to resolve the contention.</li> The electro-optic control and OXS managed to switch all these types of data traffic (scenarios) successfully and resolve the contention with an optical delay buffer. The success of the results was measured in two ways. Firstly it was deemed successful if the expected output sequence was measured at the corresponding output ports. Secondly it was successful if the degradation in quality of the packet was not drastic, meaning the output packets should have an BER (Bit Error Rate) of less than 10-9. The quality of the packets was measured in the form of eye diagrams before and after the switching and then compared. The research resulted in the design and implementation of a flexible electro-optic control for the OXS. The problem of contention was resolved for fixed length synchronous packets and a proposal is discussed to store packets for variable lengths of time by using the OXS. This electro-optic control has the potential to control the OXS for traffic with higher complexities and make the OXS compatible with future developments. / Dissertation (MEng (Electronic Engineering))--University of Pretoria, 2008. / Electrical, Electronic and Computer Engineering / MEng / unrestricted

The number of processor cores and on-chip cache size has been increasing on chip multiprocessors (CMPs). As a result, leakage power dissipated in the on-chip cache has become very significant. We explore various techniques to switch-off the over-allocated cache so as to reduce leakage power consumed by it. A large cache offers non-uniform access latency to different cores present on a CMP and such a cache is called “Non-Uniform Cache Architecture (NUCA)”. Past studies have explored techniques to reduce leakage power for uniform access latency caches and with a single application executing on a uniprocessor. Our ideas of power optimized caches are applicable to any memory technology and architecture for which the difference of leakage power in the on-state and off-state of on-chip cache bank is significant. Switching off the last level shared cache on a CMP is a challenging problem due to concurrently executing threads/processes and large dispersed NUCA cache. Hence, to determine cache requirement on a CMP, first we propose a new highly accurate method to estimate working set size of an application, which we call “tagged working set size estimation (TWSS)” method. This method has a negligible hardware storage overhead of 0.1% of the cache size. The use of TWSS is demonstrated by adaptively adjusting cache associativity. Our ideas of adaptable associative cache is scalable with respect to the number of cores present on a CMP. It uses information available locally in a tile on a tiled CMP and thus avoids network access unlike other commonly used heuristics such as average memory access latency and cache miss ratio. Our implementation gives 25% and 19% higher EDP savings than that obtained with average memory access latency and cache miss ratio heuristics on a static NUCA platform (SNUCA), respectively. Cache misses increase with reduced cache associativity. Hence, we also propose to map some of the L2 slices onto the rest L2 slices and switch-off mapped L2 slices. The L2 slice includes all L2 banks in a tile. We call this technique the “remap policy”. Some applications execute with lesser number of threads than available cores during their execution. In such applications L2 slices which are farther to those threads are switched-off and mapped on-to L2 slices which are located nearer to those threads. By using nearer L2 slices with the help of remapped technology, some applications show improved execution time apart from reduction in leakage power consumption in NUCA caches. To estimate the maximum possible gains that can be obtained using the remap policy, we statically determine the near-optimal remap configuration using the genetic algorithms. We formulate this problem as a energy-delay product minimization problem. Our dynamic remap policy implementation gives energy-delay savings within an average of 5% than that obtained with the near-optimal remap configuration. Energy-delay product can also be minimized by improving execution time, which depends mainly on the static and dynamic NUCA access policies (DNUCA). The suitability of cache access policy depends on data sharing properties of a multi-threaded application. Hence, we propose three indices to quantify data sharing properties of an application and use them to predict a more suitable cache access policy among SNUCA and DNUCA for an application.

The number of processor cores and on-chip cache size has been increasing on chip multiprocessors (CMPs). As a result, leakage power dissipated in the on-chip cache has become very significant. We explore various techniques to switch-off the over-allocated cache so as to reduce leakage power consumed by it. A large cache offers non-uniform access latency to different cores present on a CMP and such a cache is called “Non-Uniform Cache Architecture (NUCA)”. Past studies have explored techniques to reduce leakage power for uniform access latency caches and with a single application executing on a uniprocessor. Our ideas of power optimized caches are applicable to any memory technology and architecture for which the difference of leakage power in the on-state and off-state of on-chip cache bank is significant. Switching off the last level shared cache on a CMP is a challenging problem due to concurrently executing threads/processes and large dispersed NUCA cache. Hence, to determine cache requirement on a CMP, first we propose a new highly accurate method to estimate working set size of an application, which we call “tagged working set size estimation (TWSS)” method. This method has a negligible hardware storage overhead of 0.1% of the cache size. The use of TWSS is demonstrated by adaptively adjusting cache associativity. Our ideas of adaptable associative cache is scalable with respect to the number of cores present on a CMP. It uses information available locally in a tile on a tiled CMP and thus avoids network access unlike other commonly used heuristics such as average memory access latency and cache miss ratio. Our implementation gives 25% and 19% higher EDP savings than that obtained with average memory access latency and cache miss ratio heuristics on a static NUCA platform (SNUCA), respectively. Cache misses increase with reduced cache associativity. Hence, we also propose to map some of the L2 slices onto the rest L2 slices and switch-off mapped L2 slices. The L2 slice includes all L2 banks in a tile. We call this technique the “remap policy”. Some applications execute with lesser number of threads than available cores during their execution. In such applications L2 slices which are farther to those threads are switched-off and mapped on-to L2 slices which are located nearer to those threads. By using nearer L2 slices with the help of remapped technology, some applications show improved execution time apart from reduction in leakage power consumption in NUCA caches. To estimate the maximum possible gains that can be obtained using the remap policy, we statically determine the near-optimal remap configuration using the genetic algorithms. We formulate this problem as a energy-delay product minimization problem. Our dynamic remap policy implementation gives energy-delay savings within an average of 5% than that obtained with the near-optimal remap configuration. Energy-delay product can also be minimized by improving execution time, which depends mainly on the static and dynamic NUCA access policies (DNUCA). The suitability of cache access policy depends on data sharing properties of a multi-threaded application. Hence, we propose three indices to quantify data sharing properties of an application and use them to predict a more suitable cache access policy among SNUCA and DNUCA for an application.

Denna rapport behandlar prestandaproblem i den nyligen standardiserade Mesh kommunikationsstandarden (IEEE 802.11s). I denna rapport, undersöker och förbättra vi ett förhållande som resulterar i reduktion av genomströmningen i en kedja av noder topologi. IEEE802.11s är mycket lovande med många fördelar för både IoT-systemen och trådlösa nätverk i båda hemmet och arbete.Vi arbetar med frågan om orättvisa när CSMA/CA tillämpas, vilket orsakar genomströmningsreduktion på grund av paketförluster och indikerar svältning. Vi analyserar konsekvenserna av Collision Avoidance (CA) mekanism och föreslår en ersättning för CA som är både rättvist och samtidigt kan upprätthålla undvikande av kollisioner. Vi implementera detta i en simulator och resultatet visar på betydligt högre end-to-end-genomströmning än standard CSMA/CA och inga paketförluster på grund av buffertspill. / This thesis rapport deals with the performance issues of the newly standardized Wireless mesh protocol (IEEE 802.11s). In this thesis, we work on improving the conditions that results in throughput degradation in a chain of nodes topology. The mesh standard is very promising with many advantages for both IoT systems and home wireless networks.We work on the issue of unfairness when CSMA/CA is applied, which causes throughput degradation due to packet loss and indicates starvation. We analyze the implication of the Collision Avoidance (CA) mechanism and propose a replacement for the CA that is both fair and able to maintain collision avoidance. We implement this in a simulator and the result shows significantly higher end-to-end throughput compared to the original CSMA/CA and no packet loss due to buffer overflow.

Ce travail se concentre sur comment un acteur justifierait ses actions dans des 'environnements hétérogènes et fragmentés. Le but est de démontrer qu’en l’absence d’un principe d’accord contraignant les actions des acteurs, les relations entre les partenaires d’action égaux basculeraient dans la polyarchie et celles entre les partenaires d’action inégaux basculeraient respectivement dans l’arrangement, la discorde et finalement, la violence. A cette fin, cette recherche se concentre sur les politiques mandataires britanniques en Irak à travers une étude de traitement du mouvement nationalitaire kurde dans la wilaya de Mossoul dans une période s’étendant du 30 octobre 1918 au 5 juin 1926. Le 30 octobre 1918 est la date à laquelle l’Armistice de Moudros a été signée entre les Alliés et l’Empire ottoman (à la fin de la Première Guerre mondiale) suite à laquelle les Britanniques occupèrent Mossoul. Le 5 juin 1926 correspond à la date de la signature du Traité d’Angora qui devait régler la question de la frontière turco-irakienne, connue aussi comme la Question de Mossoul / This study focuses on how an actor justifies its actions in heterogenous and fragmented environments. It aims at proving that in the absence of a principle of agreement constraning the actors’ actions, the relations between equal partners of action turn into polyarchy whilst those between inequal ones end in arrangement, contention and finally, violence. To this end, this research concentrates on the British mandatory policies in Iraq through the management of Kurdish nationalist movement in the wilaya of Mosul from 30rd October 1918 to 5th 1926. The 30rd October 1918 is the date of the signature of Armistice of Mudros between the Allies and the Ottoman Empire at the end of the First World War. It is in the aftermath of this armistice that the British occupied Mosul. In 5th 1926, Turkey and Great Britain signed the Treaty of Angora which settled the question of frontier between Turkey and Irak, a question which is also known as Question of Mosul

L’émergence de la psychiatrie comme discipline distincte de la médecine somatique, dans la première moitié du XIXe siècle, s’inscrit dans le cadre de la réforme de la législation sur les aliénés, qui conduit à la création de nouveaux asiles publics dédiés au traitement des malades mentaux en Angleterre, dont celui du Comté du Middlesex, à Hanwell, en 1831. L’Asile de Hanwell, situé près de Londres, est un asile pour aliénés indigents, qui fonctionne de manière complémentaire par rapport à des institutions telles que les workhouses – emblématiques de la nouvelle Loi sur les Pauvres de 1834 – dans la prise en charge d’individus qui sont dans l’incapacité de subvenir à leurs besoins. Sous la direction du docteur John Conolly (1794-1866), qui, dès sa nomination à la direction médicale de l’établissement en 1839, met en place une politique de non-restraint (abandon des moyens de contention mécaniques) à une échelle jusqu’alors inédite, l’Asile de Hanwell est explicitement conçu comme un outil dont la fonction première est thérapeutique, dénué de toute intention punitive. L’influence que cet établissement exercera sur les institutions similaires en Angleterre dès les années 1840 contribue à l’optimisme thérapeutique quant au traitement des aliénés qui prévaut alors, et l’asile victorien, en dépit de ses imperfections, se veut un authentique refuge et un lieu de soins. La conception thérapeutique du Dr Conolly s’inscrit dans la continuité du traitement moral défini par le médecin français Philippe Pinel, mais s’inspire également des expériences menées à La Retraite (York), ou à l’asile de Lincoln. Cette thérapie innovante a la particularité de mettre l’accent sur la qualité de l’environnement et du mode de vie des patients, ainsi que sur les distractions diverses qui leur sont proposées : jeux, fêtes de Noël, kermesses, lecture, musique, sport et danse. La logique de soins qui s’applique alors, le moral management, repose sur une thérapie d’occupation. L’originalité de ce traitement sur le plan médical s’accompagne d’une dimension sociale, voire politique. En effet, loin de limiter ses ambitions au strict domaine médical, le Dr Conolly, connu pour son engagement en faveur de l’éducation populaire au sein de la Society for the Diffusion of Useful Knowledge, tout autant que pour son soutien au mouvement chartiste, mène un combat permanent, de 1839 à 1852, pour que les patients, hommes et femmes, aient accès à une instruction au sein de l’école de l’Asile, dont la création et le maintien sont loin de faire l’unanimité. Conolly envisage l’éducation comme un élément central, qui va bien au-delà d’une simple distraction pour les malades et représente un véritable outil d’insertion sociale et d’émancipation des classes populaires. Il rejoint en cela une conception owéniste de l’éducation, et l’école de l’Asile de Hanwell copie quasiment trait pour trait l’école de New Lanark telle qu’elle se présentait au début du XIXe siècle. Robert Owen (1771-1858) rend d’ailleurs visite à John Conolly dès sa nomination, au printemps 1839. Étudier l’expérience menée dans cet établissement emblématique sous l’autorité de John Conolly – non sans lien avec les expériences sociales menées par les owénistes – et l’influence que cette expérience a pu avoir par la suite dans le paysage psychiatrique victorien, permet d’analyser le non-restraint dans sa dimension thérapeutique, sociale et politique. L’Asile de Hanwell sera pendant près de trente ans une référence dans le traitement des aliénés, et servira de modèle à bon nombre d’institutions, particulièrement en Angleterre. L’influence de Hanwell s’estompera dans les années 1870, qui verront l’émergence de théories de l’hérédité peu compatibles avec le traitement moral. / The emergence of psychiatry as a separate discipline from general medicine, in the first half of the nineteenth century, was linked to the Lunacy Reform movement (County Asylums Acts) that led to the creation of new public asylums dedicated to the treatment of the mentally ill in England. The Middlesex County Asylum in Hanwell, built in 1831, was one of them. Hanwell Asylum, situated in the western suburbs of London, was a pauper lunatic asylum that operated as a complementary institution to the numerous workhouses – symbols of the New Poor Law of 1834 – taking care of people who were deemed unable to take care of themselves. As soon as he was appointed medical superintendent of the institution, in 1839, Dr John Conolly (1794-1866) implemented a whole new policy of non-restraint, applied on an unprecedented scale, and Hanwell Asylum under his leadership was explicitly and primarily intended to be a therapeutic tool, devoid of any punitive purpose. The influence of Hanwell on similar institutions, from the1840s onwards, contributed to the prevailing therapeutic optimism of the time, and Victorian asylums, despite their defects, were meant to be genuine places of refuge and care. Dr Conolly’s therapeutic methods were coherent with “moral treatment” as defined by French doctor Philippe Pinel, but were also based on previous experiences conducted at the York Retreat or Lincoln Asylum. One of the main features of this pioneering treatment was the special emphasis it placed on the high quality of the patients’ environment and way of life, as well as on the wide range of entertainment offered to them: games, Christmas parties, summer fêtes, reading sessions, music, sport and dancing. The approach favoured in terms of health care, a “moral management” approach, was grounded on the principles of occupational therapy. The originality of this treatment from a medical point of view was reinforced by its social and, indeed, political dimension. From 1839 to 1852, far from limiting his ambitions to a strictly medical field, Dr Conolly – well-known for his commitment to the cause of popular education, as a member of the Society for the Diffusion of Useful Knowledge, as well as for his support of the Chartist movement – actually kept on fighting for the right of male and female patients alike to receive proper instruction within the asylum school, which remained highly controversial and constantly threatened with closure. Conolly viewed education as a central element, going far beyond a mere distraction for the insane and truly constituting a tool for social insertion and a means of emancipation for the lower classes. His views on education were similar to the Owenite conception of education and the asylum school at Hanwell was a faithful replica of the New Lanark School at the beginning of the nineteenth century. Besides, Robert Owen (1771-1858) came to Hanwell Asylum and visited John Conolly soon after he was appointed superintendent there, during the spring of 1839. Studying the case of this emblematic institution and the experience carried out within its premises under John Conolly’s authority – an experience which may not be unrelated to Owenite social experimentation – and analysing the impact this experience may have had within the Victorian psychiatric landscape in the years that followed, is an invaluable way of understanding the non-restraint movement through its various dimensions: therapeutic, social and political. For nearly thirty years, Hanwell Asylum remained a benchmark in the treatment of the insane, and served as a model for many other institutions, particularly in England. Its influence began receding in the 1870s, with the emergence of theories of heredity that were hardly compatible with the tenets of moral management.

Opportunistic selection algorithms have grown in importance as next generation wireless systems strive towards higher data rates and spectral efficiencies. For example, in orthogonal frequency division multiple access(OFDMA), the system bandwidth is divided into many sub channels. For each sub channel, the user with the highest channel gain is opportunistically assigned to it. .Likewise, in a multi-source, multi-destination (MSD) cooperative relay system, a relay node must be assigned for every source-destination (SD) pair. The assignment decisions are based on local channel knowledge and must be fast so as to maximize the time available for data transmission. We develop novel multiple access based splitting-based selection algorithms for OFDMA and MSD systems. These systems are unique in that the same user and relay can be the most suitable one for multiple sub channels and multiple SD pairs, respectively. For OFDMA systems, we propose an algorithm called Split Select that assigns for every sub channel the user with the highest channel gain over it. For MSD systems, we propose a contention-based en masse assignment (CBEA) algorithm that assigns to each SD pair a relay that is capable of aiding it. Both Split Select and CBEA are fast and scale well with the number of nodes. For example, Split Select requires just 2.2 slots, on average, to assign a sub channel to its best user even when there are an asymptotically large number of contending users. Likewise, CBEA often takes far less than one slot, on average, to assign a relay to each SD pair.

Au carrefour de la sociologie de la culture et de la sociologie de la déviance, ce travail porte sur les dimensions festives et oppositionnelles du monde des free parties, qui s’articule autour de manifestations techno clandestines et marginales. A partir d’une enquête ethnographique, il s’agit d’examiner une pratique culturelle et musicale mais aussi de saisir la variété des expressions oppositionnelles que les jeunes engagés dans ce monde y déploient. A la suite d’un travail de clarification théorique, cette recherche s’inspire de la notion de contre-culture, dans laquelle l’idée de conflictualité est centrale. Cet outil conceptuel permet d’explorer diverses facettes de l’univers free, controversé et encore largement méconnu, et notamment sa composante « contre ». On peut ainsi montrer que, si le monde free est loin d’être réductible à ses dimensions oppositionnelles, celles-ci peuvent donner un relief particulier à la fête – et réciproquement. La pertinence du croisement entre l’objet « free parties » et l’outil conceptuel « contre-cultures » est due en partie à la double déviance, sociale et légale, qui caractérise les fêtes techno étudiées. Les différents aspects oppositionnels mis en évidence dans ce monde juvénile, ainsi que la distinction entre non-conformité et contestation qui en émane, permettent d’analyser le rapport entre déviance, illégalité, conflictualité/illégalité à la lumière du cas des free parties. / At the crossroads of the sociology of culture and the sociology of deviance, this work focuses on the festive and oppositional dimensions of the free party world, which revolves around clandestine and marginal techno events. Based on an ethnographic research, this study aims to examine a cultural and musical practice but also to grasp the various oppositional expressions unfolding within this youth culture. After providing a theoretical clarification, I draw on the notion of counterculture, in which the idea of conflict is central. This conceptual tool enables me to explore various facets of the free party universe, controversial and still largely misunderstood, and in particular its antagonistic elements. Thus I show that, while the free party world does not amount to its oppositional dimensions, the latter can enhance the festive experience – and vice versa. The double deviance – both social and legal – characteristic of the studied techno parties makes it all the more relevant to bring together this object of study and the concept of counterculture. The various oppositional aspects of this youth culture I highlight, as well as the resulting distinction between nonconformity and contention, enable me to analyze the relationship between deviance, illegality, and conflict/counterculture in the light of the case of free parties.