False Identity Detection Using Complex Sentences

The use of faked identities is a current issue for both physical and online security. In this paper, we test the differences between subjects who report their true identity and the ones who give fake identity responding to control, simple, and complex questions. Asking complex questions is a new procedure for increasing liars' cognitive load, which is presented in this paper for the first time. The experiment consisted in an identity verification task, during which response time and errors were collected. Twenty participants were instructed to lie about their identity, whereas the other 20 were asked to respond truthfully. Different machine learning (ML) models were trained, reaching an accuracy level around 90-95% in distinguishing liars from truth tellers based on error rate and response time. Then, to evaluate the generalization and replicability of these models, a new sample of 10 participants were tested and classified, obtaining an accuracy between 80 and 90%. In short, results indicate that liars may be efficiently distinguished from truth tellers on the basis of their response times and errors to complex questions, with an adequate generalization accuracy of the classification models

About the fine-tuning price of LEP

Following Chankowski, Ellis and Pokorski we quantify the amount of fine-tuning of input parameters of the Minimal Supersymmetric Standard Model that is needed to respect the lower limits on sparticle and Higgs masses imposed by negative searches so far, direct or indirect. By including the one loop radiative corrections to the effective potential, the amount of fine-tuning is reduced with respect to the results of CEP by a factor of 2--5, strongly increasing as tan\beta approaches 1. A further reduction factor may come from a more appropriate, less restrictive, definition of the fine-tuning parameter itself.Comment: 3 pages, 3 figure

Inaction and Long Term Properties in the Housing Market

Economics of Inaction and Long-Range Dependence in Housing Prices. Stocks and Housing over the Life Cycle. Mathematical Appendix

The Body Politic Metaphor in Communal and Post-Communal Italy : Some Remarks on the Case of Lombardy

This paper uses the body politic metaphor to explore the dialectic of power between different political players in communal and post-communal Lombardy. On the one hand, notions of corporeal links, drawing upon an ancient and venerable tradition, were key strands of public debate on state formation in the Late Middle Ages. On the other hand, there were distinctively communal and post-communal discourses based upon the body politic metaphor. My purpose is to investigate all of these aspects through analysis of the so-called \u201cpragmatic writings\u201d (such as letters, decrees, notarial deeds), sources usually overlooked by historians of political thought. As is shown in this paper, the novelty of this approach makes it possible to appreciate corporeal metaphors as performative tools and instruments of political action

Improving social game engagement on Facebook through enhanced socio-contextual information

In this paper we describe the results of a controlled study of a social game, Magpies, which was built on the Facebook Online Social Network (OSN) and enhanced with contextual social information in the form of a variety of social network indices. Through comparison with a concurrent control trial using an identical game without the enhanced social information, it was shown that the additional contextual data increased the frequency of social activity between players engaged in the game. Despite this increase in activity, there was little increase in growth of the player-base when compared to the control condition. These findings corroborate previous work that showed how socio-contextual enhancement can increase performance on task-driven games, whilst also suggesting that it can increase activity and engagement when provided as context for non task-driven game environments

Radiative Neutralino Decay in Supersymmetric Models

The radiative decay Z2-> Z1 gamma proceeds at the one-loop level in the MSSM. It can be the dominant decay mode for the second lightest neutralino Z2 in certain regions of parameter space of supersymmetric models, where either a dynamical and/or kinematic enhancement of the branching fraction occurs. We perform an updated numerical study of this decay mode in both the minimal supergravity model (mSUGRA) and in the more general MSSM framework. In mSUGRA, the largest rates are found in the ``focus point'' region, where the mu parameter becomes small, and the lightest neutralinos become higgsino-like; in this case, radiative branching fraction can reach the 1% level. Our MSSM analysis includes a scan over independent positive and negative gaugino masses. We show branching fractions can reach the 10-100% level even for large values of the parameter tan(beta). These regions of parameter space are realized in supergravity models with non-universal gaugino masses. Measurement of the radiative neutralino branching fraction may help pin down underlying parameters of the fundamental supersymmetric model.Comment: 19 page JHEP file with 8 PS figures; previous version contained figure misplacemen

Gli autori latini del medioevo: authority list e authority file [Versione italiana presentata alla Conferenza internazionale] = Medieval Latin authors: authority list and authority file [English version presented at the International Conference]

The authority control for Medieval Latin literature presents a particularly delicate and complex problem. The first necessity which continues to be hard to satisfy for the person who is compiling a biographical, bibliographical or historical reference work in the field of medieval literature, is to be able to depend on a reliable author list. The authority control for medieval Latinity often requires original researches, which in turn demand qualified competence. The idea of elaborating a new authority list developed, as a result, within the ‘Società Internazionale per lo Studio del Medioevo Latino’ and the ‘Fondazione Franceschini’, including all those authors who wrote in Latin between 500 and 1500. For these institutions the problem in authority control is present on several fronts: the production of bibliographical instruments (the ‘Medioevo Latino’ newsletter and the C.A.L.M.A. reference work), manuscript cataloguing (the Codex project), and the production of the library catalogue for these two bodies, highly specialized in medieval Latin literature

Visual complexity, player experience, performance and physical exertion in motion-based games for older adults

Motion-based video games can have a variety of benefits for the players and are increasingly applied in physical therapy, rehabilitation and prevention for older adults. However, little is known about how this audience experiences playing such games, how the player experience affects the way older adults interact with motion-based games, and how this can relate to therapy goals. In our work, we decompose the player experience of older adults engaging with motion-based games, focusing on the effects of manipulations of the game representation through the visual channel (visual complexity), since it is the primary interaction modality of most games and since vision impairments are common amongst older adults. We examine the effects of different levels of visual complexity on player experience, performance, and exertion in a study with fifteen participants. Our results show that visual complexity affects the way games are perceived in two ways: First, while older adults do have preferences in terms of visual complexity of video games, notable effects were only measurable following drastic variations. Second, perceived exertion shifts depending on the degree of visual complexity. These findings can help inform the design of motion-based games for therapy and rehabilitation for older adults