Parametric invariant Random Matrix Model and the emergence of multifractality

We propose a random matrix modeling for the parametric evolution of eigenstates. The model is inspired by a large class of quantized chaotic systems. Its unique feature is having parametric invariance while still possessing the non-perturbative crossover that has been discussed by Wigner 50 years ago. Of particular interest is the emergence of an additional crossover to multifractality.Comment: 7 pages, 6 figures, expanded versio

Scaling properties of delay times in one-dimensional random media

The scaling properties of the inverse moments of Wigner delay times are investigated in finite one-dimensional (1D) random media with one channel attached to the boundary of the sample. We find that they follow a simple scaling law which is independent of the microscopic details of the random potential. Our theoretical considerations are confirmed numerically for systems as diverse as 1D disordered wires and optical lattices to microwave waveguides with correlated scatterers.Comment: 5 pages, 4 figures Submitted to Physical Review B Revision 2: 1) Theoretical curve fits added to Figures 1-4. 2) Scaling parameter added to inset of Figure 2. 3) Minor text changes to reflect referee comments. 4) Some extra refereces were adde

Scattering at the Anderson transition: Power--law banded random matrix model

We analyze the scattering properties of a periodic one-dimensional system at criticality represented by the so-called power-law banded random matrix model at the metal insulator transition. We focus on the scaling of Wigner delay times $\tau$ and resonance widths $\Gamma$. We found that the typical values of $\tau$ and $\Gamma$ (calculated as the geometric mean) scale with the system size $L$ as $\tau^{\tiny typ}\propto L^{D_1}$ and $\Gamma^{\tiny typ} \propto L^{-(2-D_2)}$, where $D_1$ is the information dimension and $D_2$ is the correlation dimension of eigenfunctions of the corresponding closed system.Comment: 6 pages, 8 figure

Lógica de gerenciamento e experiência sensível. Gerentes intermediários e funcionários juniores em um centro de distribuição.

More than a simple ideology, Management is a rationality since have overpassed the sphere of the direction of the work and have converted in a mentality. It will be displayed some examples in which is possible to notice that the managerial logic appears embodied in the middle management and when be reproduced with total conviction its rhetoric, they get big dosses of satisfaction. Suffering of these people, is caused by the opposite phenomenon: the disability to obey the mentioned their premises thanks to the requirements that the logic of the management impose to them. The subordinate personnel, by their way understand that rationality like a fatality and by these, without realizing it, reproduce it with resignation, and to protect their selves from the requirements that are imposed to them, been happy knowing that can “escape” daily when their working day ends.Más que una simple ideología, el management es una racionalidad pues ha sobrepasado la esfera de la dirección del trabajo y se ha convertido en una mentalidad. Se mostrarán algunos ejemplos en los cuales se observa que la lógica managerial aparece encarnada en los mandos medios y que cuando reproducen con total convicción y coherencia sus retóricas, obtienen grandes dosis de satisfacción. El sufrimiento de ellos, es causado por el fenómeno opuesto: la incapacidad de obedecer sus premisas gracias a las exigencias que la lógica del management les impone. El personal subalterno, por su parte entiende tal racionalidad como una fatalidad y, sin mucho darse cuenta, la reproduce con resignación y, para protegerse de las exigencias que le impone, se contenta creyendo que puede “escapársele” diariamente, cuando su jornada termina.Mais do que apenas uma ideologia, a administração é uma racionalidade porque foi além da esfera da direção do trabalho e se tornou uma mentalidade. Alguns exemplos serão mostrados nos quais se observa que a lógica gerencial aparece incorporada na gerência intermediária e que, quando ela reproduz sua retórica com total convicção e coerência, obtém grandes doses de satisfação. O sofrimento é causado pelo fenômeno oposto: a incapacidade de obedecer a suas premissas, graças às exigências que a lógica gerencial impõe. Os funcionários juniores, por sua vez, entendem essa racionalidade como uma fatalidade e, sem perceber, a reproduzem com resignação e, para se protegerem das exigências impostas, contentam-se em acreditar que podem "escapar" diariamente, quando termina o dia

«Y de estas escogí catorce»: la versión española de las «Novelle» de Bandello

In this article we unravel the reasons why Vincent de Millis translated Matteo Bandello’s Novelle (1554) from the French translation of Pierre Boaistuau and François de Belleforest; how he manipulated the source text and what changes separate the Historias trágicas ejemplares (1589) from the Histoires tragiques (1559) and the Novelle. To do so, we focus on the comparison of some particularly violent scenes and their denouements, a true sample of the strategies used by Boaistuau, Belleforest, and Millis, to carry out the truculent adaptation of the Italian material to the new context where they write and translate.A lo largo del presente artículo intentaremos desgranar las razones por las que Vicente de Millis tradujo las Novelle (1554) de Matteo Bandello a partir de la traducción francesa de Pierre Boaistuau y François de Belleforest; de qué manera manipuló el texto de partida y qué cambios separan las Historias trágicas ejemplares (1589) de las Histoires tragiques (1559) y las Novelle. Para ello, nos centraremos en el cotejo de algunas escenas particularmente violentas y sus desenlaces, verdadero muestrario de las estrategias utilizadas por Boaistuau, Belleforest y, finalmente, Millis, para la adaptación truculenta de la materia italiana al nuevo contexto desde el que escriben y traducen.

SJM: Un simulador de jerarquías de memoria orientado a la docencia de arquitectura de computadores

El concepto de jerarquía de memoria de un computador es uno de los más importantes en el ámbito de la docencia en arquitectura de computadores. Habitualmente, los distintos aspectos de la estructura y el funcionamiento de la jerarquía de memoria (memoria cache, memoria virtual, algoritmos de reemplazo, tasas de fallos, etc.) se explican primero a los alumnos de manera teórica, y posteriormente se realizan prácticas basadas en programas que simulan dicha jerarquía. En este trabajo se presenta un nuevo simulador pedagógico, SJM, que permite modelar de forma amigable distintas jerarquías de memoria, modificar fácilmente sus características y obtener medidas de sus prestaciones, de cara a que los alumnos, mediante la evaluación de distintas configuraciones de la jerarquía de memoria, afiancen su comprensión de los distintos aspectos de ésta.Peer Reviewe

Laboratory Characterization and Astrophysical Detection of Vibrationally Excited States of Vinyl Cyanide in Orion-KL

New laboratory data of CH$_2$CHCN (vinyl cyanide) in its ground and vibrationally excited states at the microwave to THz domain allow searching for these excited state transitions in the Orion-KL line survey. Frequency-modulated spectrometers combined into a single broadband 50-1900 GHz spectrum provided measurements of CH$_2$CHCN covering a spectral range of 18-1893 GHz, whose assignments was confirmed by Stark modulation spectra in the 18-40 GHz region and by ab-initio anharmonic force field calculations. For analyzing the emission lines of CH$_2$CHCN species detected in Orion-KL we used the excitation and radiative transfer code (MADEX) at LTE conditions. The rotational transitions of the ground state of this molecule emerge from four cloud components of hot core nature which trace the physical and chemical conditions of high mass star forming regions in the Orion-KL Nebula. The total column density of CH$_2$CHCN in the ground state is (3.0$\pm$0.9)x10$^{15}$ cm$^{-2}$. We report on the first interstellar detection of transitions in the v10=1/(v11=1,v15=1) dyad in space, and in the v11=2 and v11=3 states in Orion-KL. The lowest energy vibrationally excited states of vinyl cyanide such as v11=1 (at 328.5 K), v15=1 (at 478.6 K), v11=2 (at 657.8 K), the v10=1/(v11=1,v15=1) dyad (at 806.4/809.9 K), and v11=3 (at 987.9 K) are populated under warm and dense conditions, so they probe the hottest parts of the Orion-KL source. Column density and rotational and vibrational temperatures for CH$_2$CHCN in their ground and excited states, as well as for the isotopologues, have been constrained by means of a sample of more than 1000 lines in this survey. Moreover, we present the detection of methyl isocyanide (CH$_3$NC) for the first time in Orion-KL and a tentative detection of vinyl isocyanide (CH$_2$CHNC) and give column density ratios between the cyanide and isocyanide isomers.Comment: 46 pages, 22 figures, 14 tables, 9 online table

Physiologically attentive user interface for robot teleoperation: real time emotional state estimation and interface modification using physiology, facial expressions and eye movements

We developed a framework for Physiologically Attentive User Interfaces, to reduce the interaction gap between humans and machines in life critical robot teleoperations. Our system utilizes emotional state awareness capabilities of psychophysiology and classifies three emotional states (Resting, Stress, and Workload) by analysing physiological data along with facial expression and eye movement analysis. This emotional state estimation is then used to create a dynamic interface that updates in real time with respect to user’s emotional state. The results of a preliminary evaluation of the developed emotional state classifier for robot teleoperation are presented, along with its future possibilities are discussed.info:eu-repo/semantics/acceptedVersio