317 research outputs found

    Perception, projection, anxiété

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    Ancona Leonardo, Scoppetta Ciriaco. Perception, projection, anxiété. In: Bulletin de psychologie, tome 27 n°311, 1974. pp. 513-525

    Contribution à l'étude de l'agression. Dynamique de l'obéissance destructive

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    Ancona Leonardo, Pareyson Rosetta. Contribution à l'étude de l'agression. Dynamique de l'obéissance destructive. In: Bulletin de psychologie, tome 25 n°296, 1972. pp. 233-249

    Le regole processuali dell'accertamento probatorio. Il dibattito contemporaneo al vaglio di un testo tommasiano

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    This essay deals with some procedural issues related to the forensic pursuance of truth, especially the latest law trends about the judge’s powers of investigation and the prohibition of judge’s personal knowledge. In the second part the author shows how the same problems are considered and solved in an article of Aquinas’ Summa Theologiae

    Decomposition of homogeneous vector fields of degree one and representation of the flow

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    Summary: The paper gives a decomposition theorem for the elements of the nonsemisimple Lie algebra H1,r(boldRn)H^{1,r}(bold R^n) of the vector fields on boldRnbold R^n that are homogeneous of degree one with respect to a dilation deltaepsilonr.delta_epsilon^r. Each XinboldRnXin bold R^n is proved to be equal to S+N,S+N, with [S,N]=0[S,N]=0 and SS linear semisimple. As a consequence, the author proves that "in absence of esonance" the vector field XX is equivalent to its linear part. Finally, the above results are applied to obtain a representation formula for the trajectories of a vector field X0inH1,rX_0in H^{1,r} and those of the affine control system dotx=X0(x)+Budot x=X_0(x)+Bu with BB constant of minimum degree

    Homogeneous Tangent Vectors and High Order Necessary Conditions for Optimal Controls

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    Summary: The author introduces and analyzes "homogeneous" tangent vectors which provide high-order approximations to the attainable set for an affine control system of the form dotx=X0(x)+sumj=1mujXj(x)dot x=X_0(x)+sum^m_{j=1}u_jX_j(x). Homogeneous tangent vectors are defined relative to one-parameter families of dilations deltaerpsiloncolonRntoRndelta^r_epsiloncolonR^ntoR^n on RnR^n. Adjoint equations associated with the corresponding homogeneous variational equation are derived and used to transport homogeneous tangent vectors along the flow of a reference trajectory. These constructions are then used to derive a homogeneous high-order test for optimality of control problems in Mayer form without terminal constraints. Essentially, it is shown that if vnu(t)v_nu(t) is a homogeneous tangent vector with respect to a dilation deltaerpsilondelta^r_epsilon generated by a control variation, then it is a necessary condition for optimality that p(t)vnu(t)leq0p(t)v_nu(t)leq0, where p(t)p(t) denotes the solution of the corresponding homogeneous adjoint equation

    Le virement de la dynamique autoplastique à la dynamique alloplastique

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    L'auteur discute de l’influence possible de la psychothérapie sur la vie morale de l'individu qui s’y soumet. Il affirme que le progrès obtenu par la psychothérapie ne coïncide pas nécessairement avec le progrès moral, même s'il s'identifie souvent avec lui, sur le plan pratique. Une modification du critère fondamental de la psychothérapie, substituant au «test de la réalité » celui de l'actualité déjà préconisé par Freud, pourrait entraîner une convergence plus fréquente entre progrès psychothérapique et progrès moral.Ancona Leonardo. Le virement de la dynamique autoplastique à la dynamique alloplastique. In: Bulletin de psychologie, tome 23 n°281, 1970. pp. 208-214

    Homework Open-Source Platform (HOP) to test the students' knowledge in Electromagnetics

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    An Open-source platform for homework assignment and correction is presented and discussed. The platform was used during the academic course in Fundamentals of Electromagnetics at the Università Politecnica delle Marche, Ancona, Italy. Statistics on the marks obtained by the students showhed that the homework undoubtedly enhanced the students' knowledge

    Incremental Rebinding with Name Polymorphism

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    AbstractWe propose an extension with name variables of a calculus for incremental rebinding of code introduced in previous work. Names, which can be either constants or variables, are used as interface of fragments of code with free variables. Open code can be dynamically rebound by applying a rebinding, which is an association from names to terms. Rebinding is incremental, since rebindings can contain free variables as well, and can be manipulated by operators such as overriding and renaming. By using name variables, it is possible to write terms which are parametric in their nominal interface and/or in the way it is adapted, greatly enhancing expressivity. The type system is correspondingly extended by constrained name-polymorphic types, where simple inequality constraints prevent conflicts among parametric name interfaces

    Measuring randomness by leave-one-out prediction error. Analysis of EEG after painful stimulation

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    A parametric approach, to measure randomness in time series, is presented. Time series are modelled by a kernel machine performing regularized least squares and the leave-one-out (LOO) error is used to quantify unpredictability. On analyzing simulated data sets, we find that structure in data leads to a minimum of the LOO error as the regularizing parameter is varied. We consider electroencephalographic signals from migraineurs and healthy humans, after painful stimulation and use the proposed approach to detect changes of physiological state and to find differences between the response from patients and healthy subjects. As painful stimulus causes organization of the local activity in the cortex, EEG series become more predictable after stimulation. This phenomenon is less evident in patients: the inadequate cortical response to pain in migraineurs separates patients from controls with a probability close to 0,005. the arterial blood pressure signal more regular and thus more predictable, is less effective in patients, and this effect correlates with the seriousness of the heart failure. Using a Gaussian kernel, so that all orders of nonlinearity are taken into account, the leave-one-out error separates controls from patients (probability less than 10−7), and alive patients from patients for whom cardiac death occurred (probability less than 0.01)
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