Quantum criticality of Ce1−x_{1-x}Lax_{x}Ru2_{2}Si2_{2} : the magnetically ordered phase

We report specific heat and neutron scattering experiments performed on the system Ce$_{1-x}$La$_{x}$Ru$_{2}$Si$_{2}$ on the magnetic side of its quantum critical phase diagram. The Kondo temperature does not vanish at the quantum phase transition and elastic scattering indicates a gradual localisation of the magnetism when $x$ increases in the ordered phase.Comment: To be published in the proceedings of QCNP0

Artificial scaling laws of the dynamical magnetic susceptibility in heavy-fermion systems

We report here how artificial, thus erroneous, scaling laws of the dynamical magnetic susceptibility can be obtained when data are not treated carefully. We consider the example of the heavy-fermion system Ce$_{0.925}$La$_{0.075}$Ru$_{2}$Si$_{2}$ and we explain how different kinds of artificial scaling laws in $E/T^\beta$ can be plotted in a low temperature regime where the dynamical susceptibility is nearly temperature independent.Comment: 4 pages, 4 figure

Y a-t-il une voie au-delà du positivisme ? Les approches critiques et le débat épistémologique en relations internationales

Cet article examine le débat épistémologique en relations internationales (ri) et les critiques à l’endroit du positivisme. Il avance que les approches critiques ne parviennent pas à préciser suffisamment quel est le problème du positivisme. On ne sait jamais à quoi pourrait ressembler une épistémologie postpositiviste. Ce texte met l’emphase sur la contribution des poststructuralistes en montrant comment le rôle central de la différence dans la construction du sens explique pourquoi nos théories sont toujours indépendantes du monde qu’elles analysent, sans toutefois être arbitraires. Il s’éloigne cependant de la stratégie de la déconstruction, en affirmant que reconnaître le rôle que joue la différence au niveau épistémologique offre un terrain sur lequel peut s’ériger une nouvelle forme de rigueur analytique que nous qualifions ici de critique.This paper surveys the epistemological debate in International Relations and reassesses criticisms of positivism. Critical approaches have often failed to specify the problem of positivism. It thus remains unclear whether there is a path beyond it. This article focuses on the poststructuralist contribution to this debate, which comes closer to correctly identifying why positivism reifies international relations. Indeed, poststructuralists have correctly identified how the role of difference in the construction of meaning illustrates why our theories are always independant from the world they supposedly describe, although not arbitrary. The article moves away from deconstruction and argues that recognizing the centrality of difference can instead offer a field on which to conceptualize a new form of analytical and critical rigour

Macro-finance and the financialisation of economic policy

Reflecting on the broad ambitions of macro-finance, I argue that the commitment to placing finance at the centre of our economic conceptions comes with significant risks that speak directly to the politics of financialisation. By redirecting the focus of economic governance towards finance, macro-finance may consolidate rather than challenge the problematic trends of global finance. More specifically, I argue that the focus of the money view on liquidity has contributed to depoliticising financial governance and aligning it further with the demands of financialisation

Explaining enhanced logical consistency during decision making in autism

The emotional responses elicited by the way options are framed often results in lack of logical consistency in human decision making. In this study, we investigated subjects with autism spectrum disorder (ASD) using a financial task in which the monetary prospects were presented as either loss or gain. We report both behavioral evidence that ASD subjects show a reduced susceptibility to the framing effect and psycho-physiological evidence that they fail to incorporate emotional context into the decision-making process. On this basis, we suggest that this insensitivity to contextual frame, although enhancing choice consistency in ASD, may also underpin core deficits in this disorder. These data highlight both benefits and costs arising from multiple decision processes in human cognition

FakeOut: Leveraging Out-of-domain Self-supervision for Multi-modal Video Deepfake Detection

Video synthesis methods rapidly improved in recent years, allowing easy creation of synthetic humans. This poses a problem, especially in the era of social media, as synthetic videos of speaking humans can be used to spread misinformation in a convincing manner. Thus, there is a pressing need for accurate and robust deepfake detection methods, that can detect forgery techniques not seen during training. In this work, we explore whether this can be done by leveraging a multi-modal, out-of-domain backbone trained in a self-supervised manner, adapted to the video deepfake domain. We propose FakeOut; a novel approach that relies on multi-modal data throughout both the pre-training phase and the adaption phase. We demonstrate the efficacy and robustness of FakeOut in detecting various types of deepfakes, especially manipulations which were not seen during training. Our method achieves state-of-the-art results in cross-dataset generalization on audio-visual datasets. This study shows that, perhaps surprisingly, training on out-of-domain videos (i.e., not especially featuring speaking humans), can lead to better deepfake detection systems. Code is available on GitHub

Patient capital in the age of financialized managerialism

This article focuses on the history of financialized management and its connections to shareholder value, which is often viewed as undermining patient strategies of investments. We argue that the rise of financialized management has in fact a long history that goes back to the conglomerate movement in 1960s America. As we show, the conglomerates pioneered the use of financial markets as a baseline for strategy, and the emphasis on financial transactions as an engine for growth. They developed key techniques—high leverage, share-price maximization and accounting manipulation—that later came to be associated with managerial strategies of the shareholder value era. This legacy has important implications for how we think about patient capital. It challenges the idea that patient capital consists foremost in shielding non-financial companies from capital markets and highlights the central role of management too often neglected in these debates