533 research outputs found
Controverses à Los Angeles: Le port du maillot de bain en ville au début du XXe siÚcle [City Limits: Bather Arrests in Early-20th century Los Angeles]
Spectacular Bodies: Los Angeles Beach Cultures and the Making of the âCalifornia Lookâ (1900s-1960s)
This article explores the origins, whitewashing, and eventual fetishization of the âCalifornia lookââa body ideal centered on bronzed skin, bleached hair, and bulging muscles, which gained a prominent place within American visual imagery in the second half of the twentieth century. Rather than solely focusing on representations of California bodies in popular culture, as other studies have done, the article locates the origins of the California look in the social history of Los Angelesâ beaches and, in particular, their use as sites of corporeal spectacles. Unlike in Europe and the East Coast, where hygienist justifications for seaside recreation endured, from the early twentieth century onwards Southern California beachgoers set medical concerns aside and focused on having fun, and shaping and parading their bodies. In parallel, consumer capitalism, aided by the rise of the beauty, exercise, and diet industries, transformed these local pursuits of health and fitness into a marketable lifestyle and coherent set of body aesthetics. Despite African-American, Asian, and Latino Angelenosâ continuing engagement with local beach cultures, national and popular culture representations of such trends systematically erased non-white bodies, thereby constructing the California look as a conspicuously white icon
Romance d\u27Estelle no. 3
Que j\u27aime avoir les Hirondelles a ma fenetre,tous les ans, venir m\u27apporter des nouvelles de l\u27approche du doux printems le meme nidme disent elles ba revoir les memes amoursce n\u27est qu\u27a des amans fideles a vous annoncerles beaux jours a vous annoncer les beaux jours.
2e CoupletLorsque les premieres geleesFont tomber les feuilles des bois,Les HIrondelles rassembleesS\u27appellent toutes sur les toits:Partons, partons, se disent elles,Fuyons la neige et les autans;Point d\u27hiver pour les coeurs fideles,Ils sont toujours dans le printems.
3e CoupletSi par malheur dans le voyage,Victime d\u27un cruel enfant,Une Hirondelle mise en cageNe peut rejoinder son amant;Vous boyez mourir l\u27hirondelleD\u27ennui de douleur et d\u27amour;Tandis que son amant fidele,Pres de la, meurt le meme jour
Formal and Fault Tolerant Design
Software quality and reliability were verified for a long time at the post-implementation level (test, fault sce-nario ...). The design of embedded systems and digital circuits is more and more complex because of inte-gration density, heterogeneity. Now almost Ÿ of the digital circuits contain at least one processor, that is, can execute software code. In other words, co-design is the most usual case and traditional verification by simu-lation is no more practical. Moreover, the increase in integration density comes with a decrease in the reliabil-ity of the components. So fault detection, diagnostics techniques, introspection are essential for defect toler-ance, fault tolerance and self repair of safety-critical systems. The use of a formal specification language is considered as the foundation of a real validation. What we would like to emphasize is that refinement (from an abstract model to the point where the system will be implemented) could be and should be formal too in order to ensure the traceability of requirements, to man-age such development projects and so to design fault-tolerant systems correct by proven construction. Such a thorough approach can be achieved by the automation or semi-automation of the refinement process. We have studied how to ensure the traceability of these requirements in a component-based approach. Re-liability, fault tolerance can be seen here as particular refinement steps. For instance, a given formal specifi-cation of a system/component may be refined by adding redundancy (data, computation, component) and be verified to be fault-tolerant w.r.t. some given fault scenarios. A self-repair component can be defined as the refinement of its original form enhanced with error detection. We describe in this paper the PCSI project (Zero Defect Systems) based on B Method, VHDL and PSL. The three modeling approaches can collaborate together and guarantee the codesign of embedded systems for which the requirements and the fault-tolerant aspects are taken into account for the beginning and formally verified all along the implementation process
Multi-layered Spiking Neural Network with Target Timestamp Threshold Adaptation and STDP
Spiking neural networks (SNNs) are good candidates to produce
ultra-energy-efficient hardware. However, the performance of these models is
currently behind traditional methods. Introducing multi-layered SNNs is a
promising way to reduce this gap. We propose in this paper a new threshold
adaptation system which uses a timestamp objective at which neurons should
fire. We show that our method leads to state-of-the-art classification rates on
the MNIST dataset (98.60%) and the Faces/Motorbikes dataset (99.46%) with an
unsupervised SNN followed by a linear SVM. We also investigate the sparsity
level of the network by testing different inhibition policies and STDP rules
Romance d\u27Estelle no. 4
L\u27autre jour la bergere Annette ayant perdu son bel agneau pleurait et disait a l\u27echo ses chagrins que l\u27echo repeteah bel agneau tu me trompais lorsque tu paraissais me cherir pour la vie helas d\u27apres mon coeurje n\u27aurais cru jamais que l\u27on put trahir son amie
2e CoupletJe t\u27ai vu,dedaignant l\u27herbette,Mieux aimer souffrir de la faim,Que de prendre d\u27une autre mainLes fleurs que t\u27apportait AnntetteAh! bel agneau, tu me trompais,Lorsque tu paraissais me cherir pour la vie,Helas! d\u27apres mon coeur, je n\u27aurais cru jamaisQue l\u27on put quitter son amie.
3e CoupletAu moindre son de ma musette,Je te voyais vite accourirAujourd\u27hui tu m\u27entends gemir,Et tu fuis loin de ton Annette.Ah! bel agneau, tu me trompais,Lorsque tu paraissais me cherir pour la vieHelas! d\u27apres mon coeur, je n\u27aurais cru jamais Que l\u27on put quitter son amie
Scalable BGP Prefix Selection for Effective Inter-domain Traffic Engineering
Inter-domain Traffic Engineering for multi-homed networks faces a scalability
challenge, as the size of BGP routing table continue to grow. In this context,
the choice of the best path must be made potentially for each destination
prefix, requiring all available paths to be characterised (e.g., through
measurements) and compared with each other. Fortunately, it is well-known that
a few number of prefixes carry the larger part of the traffic. As a natural
consequence, to engineer large volume of traffic only few prefixes need to be
managed. Yet, traffic characteristics of a given prefix can greatly vary over
time, and little is known on the dynamism of traffic at this aggregation level,
including predicting the set of the most significant prefixes in the near
future. %based on past observations. Sophisticated prediction methods won't
scale in such context. In this paper, we study the relationship between prefix
volume, stability, and predictability, based on recent traffic traces from nine
different networks. Three simple and resource-efficient methods to select the
prefixes associated with the most important foreseeable traffic volume are then
proposed. Such proposed methods allow to select sets of prefixes with both
excellent representativeness (volume coverage) and stability in time, for which
the best routes are identified. The analysis carried out confirm the potential
benefits of a route decision engine
EVALUATION DE SYSTEMES DE PRODUCTION INNOVANTS INSCRITS EN AGRICULTURE DURABLE : LE CAS DES SYSTEMES BOVINS HERBAGERS DU HAUT-BOCAGE POITEVIN
N° ISBN - 978-2-7380-1284-5International audienceSince 1990, farmers of Poitou's Haut-Bocage (center West of France) have set up cattle grassland systems based upon AndrĂ© Pochonâs Britain example and largely based on grazing of temporary grass-clover pastures. Adapted by farmers' groups to the specific pedoclimatic conditions of this region, these innovative systems create high value added by important cost savings, in complete contrast to the main agricultural development in the region, aiming at increasing work productivity thanks to the growth of production per hectare and per worker. The effects of grassland systems implementation in this region are appraised by using the concept of production system and the methods of project's assessment (comparison of a grassland scenario and a counterfactual scenario), from standpoint of both farmers and the whole national economy. The results of the differential between this two scenarios point out that farmers benefit from higher incomes and less working load and that, between 1990 and 2009, this implementation allowed net national income increase, 50% more farmers' job creation and a better labour remuneration in all the sectors. These less subsidized cattle grassland systems, characterized by a higher social and environmental viability, also allowed to cut down public expenditures
Unsupervised Visual Feature Learning with Spike-timing-dependent Plasticity: How Far are we from Traditional Feature Learning Approaches?
Spiking neural networks (SNNs) equipped with latency coding and spike-timing
dependent plasticity rules offer an alternative to solve the data and energy
bottlenecks of standard computer vision approaches: they can learn visual
features without supervision and can be implemented by ultra-low power hardware
architectures. However, their performance in image classification has never
been evaluated on recent image datasets. In this paper, we compare SNNs to
auto-encoders on three visual recognition datasets, and extend the use of SNNs
to color images. The analysis of the results helps us identify some bottlenecks
of SNNs: the limits of on-center/off-center coding, especially for color
images, and the ineffectiveness of current inhibition mechanisms. These issues
should be addressed to build effective SNNs for image recognition
Extended Model driven Architecture to B Method
International audienceModel Driven Architecture (MDA) design approach proposes to separate design into two stages: implementation independent stage then an implementation-dependent one. This improves the reusability, the reusability, the standability, the maintainability, etc. Here we show how MDA can be augmented using a formal refinement approach: B method. Doing so enables to gradually refine the development from the abstract specification to the executing implementation; furthermore it permits to prove the coherence between components in low levels even if they are implemented in different technologies
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