Showing papers by "Paris West University Nanterre La Défense published in 2004"
TL;DR: Female canaries (Serinus canaria) are exposed to attractive and unattractive song repertoires using a crossover design, which implies thatsong repertoires convey important information about the reproductive value of a given male and suggests that testosterone deposition in egg yolk may be costly.
153 citations
TL;DR: Mothers' and fathers' Adult Attachment Interview classifications are used to predict a 3-year-old's responses to the Attachment Story Completion Task (ASCT), and a Q-sort coding procedure for the ASCT is presented, which yields scores on four attachment dimensions.
Abstract: In the present article on intergenerational transmission of attachment representations, we use mothers' and fathers' Adult Attachment Interview classifications to predict a 3-year-old's responses to the Attachment Story Completion Task (ASCT). We present a Q-sort coding procedure for the ASCT, which was developed for children as young as three. The Q-sort yields scores on four attachment dimensions (security, deactivation, hyperactivation, and disorganization). One-way ANOVAs revealed significant mother-child associations for each dimension, although results for the hyperactivation and disorganization dimensions were significant only according to contrast tests. Conversely, no father-child association was found, regardless of the dimension considered. Findings are discussed in terms of the respective part played by each parent in their children's emotional development.
115 citations
TL;DR: In this article, the main results of three original studies on the equilibrium with a market of tradeable permits in a static framework are presented, and the consequences of the choice between giving free permits to firms and other possibilities.
Abstract: In this paper we present the main results of three original studies on the equilibrium with a market of tradeable permits in a static framework. In first study, we have considered an international equilibrium of two countries which depend on the quantity of permits to each country. The allocation is efficient if and only if it is proportional to efficient labor. A redistribution in favor of the less developed country implies a redistribution to this country but leads to a dilemma with efficiency. In the second study, we analyze the consequences of the choice between giving free permits to firms and other possibilities. We show that for equalizing incomes of production factors with there marginal productivities, each factor should receive a quantity of free permits proportional to its contribution to production. In the third study, we consider the partial equilibrium of an industry where each firm is characterized by a parameter combining production efficiency and pollution effect. We define a theoretical indicator of environmental efficiency and we analyze its properties.
111 citations
TL;DR: In this article, the authors provide a physical basis for this phenomenological law based on a slider block model using a state and velocity-dependent friction law established in the laboratory, and use the slider block friction model to analyze quantitatively the displacement and velocity data preceding two landslides, Vaiont and La Clapiere.
Abstract: [1] Accelerating displacements preceding some catastrophic landslides have been found to display a finite time singularity of the velocity v ∼1/(tc − t) [Voight, 1988a, 1988b]. Here we provide a physical basis for this phenomenological law based on a slider block model using a state- and velocity-dependent friction law established in the laboratory. This physical model accounts for and generalizes Voight's observation: Depending on the ratio B/A of two parameters of the rate and state friction law and on the initial frictional state of the sliding surfaces characterized by a reduced parameter Xi, four possible regimes are found. Two regimes can account for an acceleration of the displacement. For B/A > 1 (velocity weakening) and Xi 1. In this case, the acceleration of the displacement evolves toward a stable sliding with a constant sliding velocity. The two other cases (B/A 1 and Xi > 1) give a deceleration of the displacement. We use the slider block friction model to analyze quantitatively the displacement and velocity data preceding two landslides, Vaiont and La Clapiere. The Vaiont landslide was the catastrophic culmination of an accelerated slope velocity. La Clapiere landslide was characterized by a peak of slope acceleration that followed decades of ongoing accelerating displacements succeeded by a restabilization. Our inversion of the slider block model in these data sets shows good fits and suggests a classification of the Vaiont landslide as belonging to the unstable velocity-weakening sliding regime and La Clapiere landslide as belonging to the stable velocity-strengthening regime.
111 citations
TL;DR: In this article, a simple physical model was proposed to explain the accelerating displacements preceding some catastrophic landslides, based on a slider-block model with a state and velocity-dependent friction law.
Abstract: In a previous work (J. Geophys. Res. (2004)), we have proposed a simple physical model to explain the accelerating displacements preceding some catastrophic landslides, based on a slider-block model with a state- and velocity-dependent friction law. This model predicts two regimes of sliding, stable and unstable leading to a critical finite-time singularity. This model was calibrated quantitatively to the displacement and velocity data preceding two landslides, Vaiont (Italian Alps) and La Clapiere (French Alps), showing that the former (resp. later) landslide is in the unstable (resp. stable) sliding regime. Here, we test the predictive skills of the state- and velocity-dependent model on these two landslides with a variety of techniques using (i) a finite-time singularity power law, (ii) the state- and velocity-dependent friction law and (iii) resummation methods extrapolating from early times. For the Vaiont landslide, our model provides good predictions of the critical time of failure up to 20 days before the collapse. Tests are also presented on the predictability of the time of the change of regime for La Clapiere landslide.
85 citations
TL;DR: In this paper, the authors used a rational expectation model of bubbles, based on the interplay between stochasticity and positive feedbacks of prices on returns and volatility, to test how this model classifies nine time series that have been previously considered as bubbles ending in crashes.
Abstract: Using a recently introduced rational expectation model of bubbles, based on the interplay between stochasticity and positive feedbacks of prices on returns and volatility, we develop a new methodology to test how this model classifies nine time series that have been previously considered as bubbles ending in crashes. The model predicts the existence of two anomalous behaviors occurring simultaneously: (i) super-exponential price growth and (ii) volatility growth, that we refer to as the “fearful singular bubble” regime. Out of the nine time series, we find that five pass our tests and can be characterized as “fearful singular bubbles”. The four other cases are the information technology Nasdaq bubble and three bubbles of the Hang Seng index ending in crashes in 1987, 1994 and 1997. According to our analysis, these four bubbles have developed with essentially no significant increase of their volatility. This paper thus proposes that speculative bubbles ending in crashes form two groups hitherto unrecognized, namely those accompanied by increasing volatility (reflecting increasing risk perception) and those without change of volatility (reflecting an absence of risk perception).
75 citations
TL;DR: This article examined whether the labor market search model can account for the business cycle facts on the three uses of time: employment, unemployment, and non-participation, and showed that despite its good performance on the employment rate, this framework fails to mimic the empirical dynamics on the two other use of time, notably the strongly countercyclical behavior of the unemployment rate.
60 citations
Posted Content•
TL;DR: In this article, a mechanism operating in complex adaptive systems leading to dynamical pockets of predictability (prediction days), in which agents collectively take predetermined courses of action, transiently decoupled from past history, is described.
Abstract: We document a mechanism operating in complex adaptive systems leading to dynamical pockets of predictability (``prediction days''), in which agents collectively take predetermined courses of action, transiently decoupled from past history. We demonstrate and test it out-of-sample on synthetic minority and majority games as well as on real financial time series. The surprising large frequency of these prediction days implies a collective organization of agents and of their strategies which condense into transitional herding regimes.
56 citations
TL;DR: In this paper, the authors investigate the behavior of the markup over the cycle and its contribution to inflation movements and show that the markup is fairly countercyclical and has a permanent effect on inflation through an error-correcting mechanism.
Abstract: The paper implements a consistent empirical strategy in order to investigate the behaviour of the markup over the cycle and its contribution to inflation movements.We model the price series as I(2) components and use polynomial cointegration in order to recover a long-run price schedule. We do not reject statistically the reduction of the I(2) framework to an I(1) model as from te mid 1980s. We observe that the markup is fairly counter-cyclical and has a permanent effect on inflation through an error-correcting mechanism. Structural and forecasting equations exhibiting good performance are therefore estimated.
54 citations
TL;DR: In this paper, the authors show how some renowned inequalities may be obtained via a simple argument: entropy projection from the path space onto finite-dimensional coordinates spaces, which can be used for ergodic behaviour, perturbation.
Abstract: The aim of this pedagogical paper is to show how some renowned inequalities may be obtained via a simple argument: entropy projection from the path space onto finite-dimensional coordinates spaces. Some applications are given: ergodic behaviour, perturbation.
40 citations
TL;DR: This paper showed that critical events are able to reveal pre-existing "cracks" because they probe the social cohesion which is an indicator and predictor of future evolution of the system, and in some cases they foreshadow a bifurcation.
Abstract: We show that, provided one focuses on properly selected episodes, one can apply to the social sciences the same observational strategy that has proved successful in natural sciences such as astrophysics or geodynamics. For instance, in order to probe the cohesion of a society, one can, in different countries, study the reactions to some huge and sudden exogenous shocks, which we call Dirac shocks. This approach naturally leads to the notion of structural (as opposed or complementary to temporal) forecast. Although structural predictions are by far the most common way to test theories in the natural sciences, they have been much less used in the social sciences. The Dirac shock approach opens the way to testing structural predictions in the social sciences. The examples reported here suggest that critical events are able to reveal pre-existing "cracks" because they probe the social cohesion which is an indicator and predictor of future evolution of the system, and in some cases they foreshadow a bifurcation. We complement our empirical work with numerical simulations of the response function ("damage spreading") to Dirac shocks in the Sznajd model of consensus build-up. We quantify the slow relaxation of the difference between perturbed and unperturbed systems, the conditions under which the consensus is modified by the shock and the large variability from one realization to another.
TL;DR: In this paper, a demarche theorique et pratique se fondant sur la theorie de Bandura is presented, and the question du genre devrait etre systematiquement prise en compte dans les modelisations des choix d'orientation et du developpement de carriere and dans l'elaboration des pratiques educatives ou de conseil.
Abstract: Resume La division sexuee du travail et de l'orientation, et les inegalites professionnelles entre les sexes sont toujours tres marquees en France. Apres un rappel de cette realite et de ces inegalites, l'article s'interroge sur les processus sous-jacents a cette division sexuee. Il presente une demarche theorique et pratique se fondant sur la theorie de Bandura. Il ressort que — pour produire un changement social allant dans le sens d'une egalite des sexes — la question du genre devrait etre systematiquement prise en compte dans les modelisations des choix d'orientation et du developpement de carriere et dans l'elaboration des pratiques educatives ou de conseil.
TL;DR: In this article, conditional variance patterns in daily return series of stock market indices in the G-7 and 6 selected economies of Central and Eastern Europe were investigated over the period 1987 to 2002.
Abstract: This paper investigates conditional variance patterns in daily return series of stock market indices in the G-7 and 6 selected economies of Central and Eastern Europe. For this purpose, various linear and asymmetric GARCH models are employed. The analysis is conducted for Canada, France, Germany, Italy, Japan, the UK and the US for which the TSX, CAC-40, DAX-100, BCI, Nikkei-225, FTSE-100 and DJ-30 indices are respectively considered over the period 1987 to 2002. Furthermore, the official indices of Czech, Hungarian, Polish, Russian, Slovak and Slovene stock markets are also studied, i.e. the PX-50, BUX, WIGI, RFS, SAX-16 and SBI, respectively, over 1991/1995 to 2002. The estimation results reveal that the selected stock returns for the G-7 can be reasonably well modelled using linear specifications whereas the overwhelming majority of the stock indices from Central and Eastern Europe can be much better characterised using asymmetric models. In other words, stock markets of the transition economies exhibit much more asymmetry because negative shocks hit much harder these markets than positive news. It also turns out that these changes do not occur in a smooth manner but happen pretty brusquely. This corroborates the usual observation that emerging stock markets may collapse much more suddenly and recover more slowly than G-7 stock markets.
TL;DR: In this article, the authors address the issue of estimating the number of breaks and their locations in the monthly US inflation series using two different approaches to testing for structural changes, one based on Bai and Perron's selection procedure and the other based on Kolmogorov-Smirnov statistics.
Abstract: This paper addresses the issue of estimating the number of breaks and their locations in the monthly US inflation series using two different approaches to testing for structural changes. The first approach considers Bai and Perron's selection procedure based on a sequence of tests. This approach focuses on the instability problem in time. The second method uses a test similar to the one based on Kolmogorov–Smirnov statistics applied to the evolutionary spectrum. The results obtained are similar and economically significant.
01 Dec 2004
TL;DR: In this paper, the authors deal with matrimonial rings, a particular kind of cycles in kinship networks which result when spouses are linked to each other by ties of consanguinity or affinity.
Abstract: The paper deals with matrimonial rings, a particular kind of cycles in kinship networks which result when spouses are linked to each other by ties of consanguinity or affinity. By taking a network-analytic perspective, the paper endeavours to put this classical issue of structural kinship theory on a general basis, such as to allow conclusions which go beyond isolated discussions of particular ring types (like "cross-cousin marriage", "sister exchange", and so forth). The paper provides a definition and formal analysis of matrimonial rings, a method of enumerating all isomor-phism classes of matrimonial rings within given genealogical bounds, a series of network-analytic tools - such as the census graph - to analyse ring structures in empirical kinship networks, and techniques to effectuate these analyses with the computer program pajek. A program package containing the required macros can be downloaded from the web. The working of the method is illustrated at the example of kinship networks from four different parts of the world (South-America, Africa, Australia and Europe).
TL;DR: Le retentissement psychosocial du cancer peut être évalué et compris de différentes façons, de nombreuses études ont décrit la qualité de vie des patients ou les difficultés d’ordre physique, psychologique ou psychiatrique that ces derniers peuvent rencontrer après traitements pour cancer.
Abstract: Le retentissement psychosocial du cancer peut être évalué et compris de différentes façons. De nombreuses études ont décrit la qualité de vie des patients ou les difficultés d’ordre physique, psychologique ou psychiatrique que ces derniers peuvent rencontrer après traitements pour cancer. De même, a été étudié l’impact de facteurs dits « externes » sur la réhabilitation des patients, comme le poids que représente le handicap « objectif » lié aux séquelles des traitements mais aussi la qualité du soutien social ou la possibilité d’une réinsertion socioprofessionnelle, etc. (Holland, 1989 ; Razavi, 1998). En parlant de guérison « psychique », le retentissement du cancer est abordé dans sa dimension intrapsychique, qu’elle soit commune à tous les patients ou singulière, c’est-à-dire mettant en lumière la subjectivité inhérente à tout vécu de cancer. Interrogeons-nous ici sur les mécanismes à l’œuvre dans le processus de guérison psychique du cancer. Dans la vie de tous les jours, sans nous en rendre compte le plus souvent, nous nous adaptons sans cesse à la nouveauté des événements et situations que nous vivons, que leur tonalité affective soit positive ou négative. Notre identité est ainsi maintenue en préservant un équilibre psychique qui repose sur la continuité d’être. L’annonce d’un diagnostic de cancer, qu’il soit curable ou incurable, quelles qu’en soient les séquelles à court, moyen ou long terme, constitue un bouleversement radical de l’image de soi. Le cancer ne laisse jamais indemne. Les capacités psychiques habituelles de tout individu sont généralement débordées, au moins dans le décours de l’annonce du diagnostic : situation de crise nécessitant un réaménagement psychique (plus ou moins conscient de la part de l’individu) pour rétablir cette continuité perdue. C’est le processus d’adaptation (modèle cognitiviste) ou de guérison « psychique » (modèle psychanalytique). La question de la guérison psychique prend toute son importance au moment de la fin des traitements, moment aboutissant à un état de non-maladie que les médecins nomment « rémission complète ». Cette rémission a plus ou moins de chances de se prolonger en fonction de la gravité du cancer, de son stade et de données inconnues qui sont d’ordre individuel. À sévérité égale, certains patients rechuteront alors que d’autres guériront. Aucun critère médical n’existe à ce jour pour dire quels patients peuvent être garantis d’une absence définitive de cellules cancéreuses. L’incertitude est donc la première entrave possible au processus de guérison psychique. En outre, la disparition totale du cancer est souvent synonyme d’une perte de l’intégrité physique touchant notamment des organes à haute valeur symbolique, qu’il s’agisse de l’amputation d’organes sexuels ou d’organes de relation. Le patient est « guéri » mais mutilé, l’image du corps peut être profondément altérée. Cette perte réelle et/ou symbolique est la deuxième entrave possible au processus de guérison « psychique ». Force est de constater la disparité des individus dans ce processus que l’on situe dans un continuum oscillant entre deux extrêmes. Rev Francoph Psycho-Oncologie (2004) Numéro 2 : 61-64 © Springer 2004 DOI 10.1007/s10332-004-0021-7
TL;DR: In this article, the authors argue that Adam Smith and Jean-Jacques Rousseau are confronted with the same question: how to explain values from a naturalistic origin of morality.
Abstract: In this paper I argue that Bernard Mandeville, Jean Jacques Rousseau and Adam Smith are confronted to the same question: how to explain values from a naturalistic origin of morality. An in-depth analysis of their theories of human nature and market society will show that Rousseau is further from Mandeville's analysis than Smith acknowledged, and it is Smith who will in fact take important elements from Mandeville to build his own theoretical system and, thereby, follow the path of economic analysis beyond moral considerations.
TL;DR: The Strategie europeenne pour l'emploi (SEE) as discussed by the authors was created by the Council of the European Union to support the developpement of l’emploi feminin.
Abstract: Resume Le developpement de l’emploi feminin est enjeu majeur pour les pays de l’Union europeenne. D’une part, il constitue une reserve de main-d’œuvre qualifiee indispensable a la croissance economique. D’autre part, il offre une reponse au probleme du financement des retraites, en retablissant un equilibre entre le nombre d’actifs et d’inactifs. Enfin, il permet de limiter le risque de pauvrete d’une partie de la population, en particulier les enfants. La Strategie europeenne pour l’emploi (SEE) a ete instauree dans le but d’encourager les Etats membres a mettre en place un cadre favorable au developpement de l’activite feminine ; elle fixe des objectifs directeurs concernant l’augmentation des taux d’emploi feminin et accessoirement celle de l’offre de services de garde des enfants. Toutefois, la capacite des pays a atteindre cet objectif demeure incertaine dans la mesure ou des situations variables sont issues d’heritages de regimes d’« Etat Social » differents (conservateur, liberal ou social-democrate). De plus, la SEE reste muette a propos de dimensions qui sont pourtant impliquees dans ce developpement : la qualite des emplois crees, celle des services de garde offerts, l’organisation du travail, la flexibilite du temps de travail et la garantie de l’attractivite de l’emploi pour le travailleur secondaire dans le couple. Les options suivies peuvent varier sensiblement et avoir des effets qualitatifs et quantitatifs differents sur le developpement de l’emploi feminin, la prise en charge du developpement des enfants et la combinaison de cet emploi avec la formation de la famille. Limiter la strategie a un objectif visant les taux d’emploi apparait insuffisant pour garantir en Europe un developpement generalise de l’emploi feminin, qui soit a la fois massif et qualitativement satisfaisant. L’adoption d’un ensemble plus large d’objectifs peut etre souhaite, necessitant dans ce cas une cooperation plus etroite des pays membres de l’Union.
TL;DR: Older, established disciplines, such as physics and chemistry, cover clearly identifiable fields, but is materials science a similarly coherent discipline, or is it rather an expedient and ephemeral label?
Abstract: Older, established disciplines, such as physics and chemistry, cover clearly identifiable fields. Is materials science a similarly coherent discipline, or is it rather an expedient and ephemeral label? And should materials science departments define a stable curriculum, or instead adapt and readapt to an ever-changing market?
TL;DR: In this article, the authors apply a nonparametric methodology developed by Donoho et al. for estimating an autocovariance sequence to the statistical analysis of the return of securities and discuss the advantages offered by this approach over other existing methods such as fixed-window-length segmentation procedures.
Abstract: The aim of this paper is to apply a nonparametric methodology developed by Donoho et al(2003 IEEE Trans. Signal Processing 53614–27) for estimating an autocovariance sequence to the statistical analysis of the return of securities and discuss the advantages offered by this approach over other existing methods such as fixed-window-length segmentation procedures. Theoretical properties of adaptivity of this estimation method have been proved for a specific class of time series, namely the class of locally stationary processes, with an autocovariance structure which varies slowly over time in most cases but might exhibit abrupt changes of regime. This method is based on an algorithm that selects empirically from the data the tiling of the time–frequency plane which exposes best in the least-squares sense the underlying second-order time-varying structure of the time series, and so may properly describe the time-inhomogeneous variations of speculative prices. The applications we consider here mainly concern t...
TL;DR: In this article, the authors make a study of the impact of money supply, dividends and interest rates on the growth of a market and introduce a method to estimate the level of investment of cash into stocks.
Abstract: Long-term trends of financial markets are considered as a growth phenomenon, with a steady influx of money needed to ensure a sustainable growth. A study is made of the impact of money supply, dividends and interest rates, on the growth of a market. A method to estimate the level of investment of cash into stocks is introduced, thereby eventually also identifying periods when stock markets are likely to have topped.
01 Jan 2004
TL;DR: The authors decrit les transformations en cours, caracterisees par la question de la representativite syndicale, de l'equilibre entre loi et accord collectif, and les effets de lintegration europeenne.
Abstract: La negociation collective en France est une institution au coeur de la vie sociale. Elle n'est pas seulement generatrice de regulation des conditions d'emploi et de travail : elle est aussi generatrice d'identites, de solidarite et d'imaginaire social. Mais ne sommes-nous pas sortis du mode de regulation caracteristique du systeme francais de relations professionnelles ? Les evolutions qui ont affecte la negociation collective depuis 1970 se caracterisent aujourd'hui par l'affaiblissement du syndicalisme et des modifications du dialogue social. L'article decrit les transformations en cours, caracterisees par la question de la representativite syndicale, de l'equilibre entre loi et accord collectif, et les effets de l'integration europeenne.
01 Jan 2004
TL;DR: Vatin et al. as mentioned in this paper analyzed how the intellectual itinerary of the founder of French labor sociology, who was shaped by the political trauma experienced by his generation, has lastingly affected this discipline.
Abstract: Georges Friedmann (1902–1977) is known as the founder, following WW II, of a “sociology of humanist work”. Before the war, he was a Marxist intellectual, close to the Communist Party, who L To do so, mechanization (machinisme), a key concept in the first part of Friedmann’s writing, is scrutinized. This concept came not from Marx but from Michelet’s Romantic conception of history, with which Friedmann was familiar. Adresse e-mail : vatin@u-paris10.fr (F. Vatin). Sociologie du travail 46 (2004) 205–223 www.elsevier.com/locate/soctra © 2004 Elsevier SAS. Tous droits reserves. doi:10.1016/j.soctra.2004.03.005 admired the young Soviet Union. How this political and ideological itinerary affected his sociology of labor, has never been systematically analyzed. To do so, “machinism” (mechanization), a key concept in the first part of Friedmann’s writing, is scrutinized. This concept came not from Marx, but from Michelet’s romantic conception of history, with which Friedmann was familiar. Following the war, it was given up for the pair “natural/technical milieu”; but this shift in vocabulary did not radically alter Friedmann’s views. Questions arise about how the intellectual itinerary of the founder of French labor sociology, who was shaped by the political trauma experienced by his generation, has lastingly affected this discipline. © 2004 Elsevier SAS. Tous droits reserves. Mots cles : Friedmann (Georges) ; Humanisme ; Machinisme ; Marx (Karl) ; Marxisme ; Michelet (Jules) ; Sociologie (histoire de la)
TL;DR: In this article, l'hyperactivite, qu'elle soit initialement pure ou associee a d'autres troubles, evolue souvent vers le "trouble oppositionnel avec provocation".
Abstract: Resume Les etudes epidemiologiques et cliniques montrent que l'hyperactivite, qu'elle soit initialement pure ou associee a d'autres troubles, evolue souvent vers le « trouble oppositionnel avec provocation » Mais les causes de cette evolution sont mal connues On avance que l'hyperactivite est associee a un style relationnel fonde sur la transposition de l'attention, c'est-a-dire sur l'externalisation et la projection sur les parents de la fonction d'attention que l'enfant est incapable d'exercer completement : plus l'enfant est inattentif, imprevoyant et impulsif, plus les parents doivent etre attentifs, prevoyants et vigilants a sa place Cette structure relationnelle est sans doute mise en place sous la pression de l'angoisse de separation, l'enfant suscitant le controle parental parce que ce dernier necessite le maintien de la proximite physique L'hyperactivite serait donc une strategie destinee a controler les parents pour prevenir les separations Mais cette dimension de controle comporte le risque d'une evolution de la relation vers un cercle vicieux sadomasochiste, dans lequel les comportements impulsifs et perturbateurs provoquent l'augmentation du controle et des punitions et reciproquement Cette escalade progressive transformerait insensiblement l'hyperactivite en trouble oppositionnel On expose et on discute cette hypothese a partir du cas d'un enfant vu a l'âge de six ans pour hyperactivite et revu sept ans plus tard pour trouble oppositionnel avec provocation
TL;DR: Auteurs ont reconsidere le test a la lumiere de la neuropsychologie contemporaine, non seulement comme un outil neuropsychologicique cognitif, mais aussi comme an instrument utile pour l'etude des rapports entre fonctionnement cognitiv and affectif, and comme instrument capable de transcending les evolutions theoriques et paradigmatiques en neuropsychology and en psychologie de la personnalite.
Abstract: Resume Depuis les annees 1920, le test du Rorschach a ete largement utilise pour l'etude de populations neurologiques. Cependant, avec les avancees dans le champ de la neuropsychologie dans les annees 1960, son utilisation n'a plus ete consideree comme appropriee dans ce contexte. Plus recemment, avec le developpement du Systeme Integre d'Exner et son paradigme cognitiviste de resolution de probleme, plusieurs auteurs ont reconsidere le test a la lumiere de la neuropsychologie contemporaine, non seulement comme un outil neuropsychologique cognitif, mais aussi comme un instrument utile pour l'etude des rapports entre fonctionnement cognitif et affectif, et comme un instrument capable de transcender les evolutions theoriques et paradigmatiques en neuropsychologie et en psychologie de la personnalite.
01 Mar 2004
TL;DR: In this paper, the authors present an aspect peu etudie de la marchandisation du sport in France, where l'economie symbolique des microcosmes sportifs locaux doit a la structuration d'un marche national des biens, des services mais aussi des images and des discours sportif.
Abstract: ResumeA travers l’exemple des communautes locales d’escaladeurs et de la mediatisation de l’escalade libre en France, cette publication presente un aspect peu etudie de la marchandisation du sport. Nous cherchons a montrer ce que l’economie symbolique des microcosmes sportifs locaux doit a la structuration d’un marche national des biens, des services mais aussi des images et des discours sportifs. Nous observons ainsi la rencontre conflictuelle entre, d’une part, l’economie symbolique locale decoulant de l’usage et l’exploitation des espaces de grimpe et, d’autre part, une economie monetaire et mediatique dont les protagonistes sont les journalistes specialises, les fabricants de materiels annonceurs des magazines et les grimpeurs sponsorises. Les differentes communautes locales de grimpeurs constituent autant de « fortins communautaires » susceptibles de former un reseau de defense contre les protagonistes de ce jeu mediatique venant troubler la quietude apparente du pied de la falaise.
Proceedings Article•
01 Sep 2004
TL;DR: The Barankin bound is derived when the multiplicative noise is complex-valued and non-circular enough and the Cramer-Rao bound is not a tight bound anymore and has to be replaced with the so-called Baranksin bound which is tighter but more complicate.
Abstract: We focus on harmonic retrieval in multiplicative and additive noise. At low SNR, Maximum-Likelihood based estimate does not reach the Cramer-Rao bound. Actually, at low SNR, the Cramer-Rao bound is not a tight bound anymore and has to be replaced with the so-called Barankin bound which is tighter but more complicate. In this paper, we derive the Barankin bound when the multiplicative noise is complex-valued and non-circular. We observe that the Barankin bound is much more greater than the Cramer-Rao bound, especially when the multiplicative noise is not non-circular enough.
Posted Content•
TL;DR: In this article, a partially segmented ICAPM using an asymmetric multivariate GARCH specification for two developed markets, two emerging markets, and two world markets was tested.
Abstract: This paper tests a partially Segmented ICAPM using an asymmetric multivariate GARCH specification for two developed markets, two emerging markets and World market We find that this asymmetric process provides a significantly better fit of the data than a standard symmetric process The evidence supports the financial integration hypothesis and suggests that domestic risk is not a priced factor
01 Jan 2004
TL;DR: The authors compare l'effet attendu sur la pollution and le revenu, au sein d'une population d'eleveurs laitiers, de plusieurs instruments en tenant compte de leur acceptabilite: taxation lineaire sur les engrais, extensification uniforme, quota d'engrais.
Abstract: Plusieurs mecanismes economiques sont a la disposition d'un regulateur souhaitant limiter les pollutions diffuses tout en preservant l'activite agricole. Cet article compare l'effet attendu sur la pollution et le revenu, au sein d'une population d'eleveurs laitiers, de plusieurs instruments en tenant compte de leur acceptabilite: taxation lineaire sur les engrais, extensification uniforme, quota d'engrais. Il illustre egalement l'interet de construire des mecanismes de regulation reposant sur une taxation non lineaire de la production. Les resultats du modele presente ici reposent sur des donnees acquises sur un bassin versant d'elevage en Loire-Atlantique
TL;DR: In this paper, the authors argue that kinds cannot be property-bearers in a more genuine sense than properties, that they are not absolutely countable, whether conceived according to science or common sense, and they are dependent on individual objects.
Abstract: In E.J. Lowe's ontology, (individual) objects are property-bearers which 1) have identity and 2) are countable. This makes it possible to become or cease to be an object, by beginning or ceasing to fulfil one of these conditions. But the possibility of switching fundamental ontological categories should be excluded. Furthermore, Lowe does not show that “quasi-individuals” (which are not countable) can exist. I argue against Lowe that kinds cannot be property-bearers in a more genuine sense than properties, that they are not absolutely countable, whether conceived according to science or common sense, and that they are dependent on individual objects.