bluuebunny/crossref_metadata_2025 huggingface dataset:
Comprobaciones resistentes de elementos constructivos de tierra
Authors: Estrada Enrique , Rohmer Erhard
Published: April 2013

El presente trabajo pretende comparar, por medio de distintos ensayos sobre elementos y fábricas de mampostería de tierra, las propiedades resistentes obtenidas con las de otros trabajos similares realizados en países con dilatada tradición y conocimiento de la tierra como material de construcción.
Se han ensayado elementos (adobes y bloques) a compresión y flexotracción y fábricas formadas por conjuntos de los mismos a compresión y a compresión diagonal.
La arquitectura popular como base de una arquitectura bioclimática. Aplicación al enfriamiento pasivo
Authors: Esteban Sáiz José Luis
Published: April 2013

En este artículo se describe la diversidad arquitectónica popular que puede apreciarse en España debido, en parte, a la gran influencia climatológica de las diferentes regiones. Se hace resaltar la indudable similitud con otros países, de condiciones ambientales análogas, independientemente de las relaciones que hayan existido entre sus moradores.
La entrada de tendencias innovadoras en la edificación ha requerido investigar sobre nuevos diseños constructivos adecuados a las condiciones ambientales y considerando conceptos termofísicos, que hasta el momento actual no se utilizaban, hasta llegar a una arquitectura que pudiéramos llamar bioclimática.
Analyse de l'activité de recherche d'apprenants de langue dans un prototype de dictionnaire en ligne
Authors: Hamel Marie-Josée
Published: April 2013

Partant d'une perspective de recherche d'informations, cet article propose une analyse, par le biais de la capture vidéo d'écran, de l'activité de recherche de mots d'apprenants de langue dans un prototype de dictionnaire en ligne pour accomplir une tâche de production écrite à l'ordinateur portant sur la reformulation de collocations. En se basant sur des paramètres observables à l'écran, il a été possible de mesurer l'efficacité et l'efficience avec lesquelles les apprenants ont accompli cette tâche. Les résultats montrent une tâche réussie avec l'aide du dictionnaire ainsi qu'une variété de parcours empruntés par les participants pour arriver à cette fin. Les quatre profils suivants de chercheurs d'informations dans le dictionnaire ont été dégagés selon la relation entre le score obtenu (la mesure d'efficacité) et le temps et les efforts consacrés (la mesure d'efficience) : "performants", "acharnés", "vite en affaire" et "en difficulté". Notre réflexion porte sur trois points : l'importance d'anticiper le processus de réalisation de la tâche (autant que sa finalité) de sorte à être en mesure de mieux lˈéchafauder ; la distinction à faire (à enseigner ?) entre le processus initial de recherche de mots (plus critique) et celui de consultation des résultats de recherche (plus souple et moins critique) dans le dictionnaire ; enfin, les notions de base à maîtriser en lexicologie (collocation, synonymie). Nous avons mis en évidence la nécessité de combiner les méthodes d'analyse orientées sur le processus.
Proposição de indicadores para o corpo discente e análise de agrupamentos aplicada aos cursos de graduação da UFES
Authors: Sales Junior Jaime Souza , Penholato Jádia Petri , Erler Igor da Silva , Carneiro Teresa Cristina Janes
Published: April 2013

Este estudo propôs a formulação de indicadores de desempenho para o corpo discente para os cursos de graduação da Universidade Federal do Espírito Santo e testou o potencial desses indicadores como classificadores dos cursos de graduação da instituição por meio do método estatístico de análise de agrupamentos. Os indicadores propostos foram: demanda candidato por vaga no vestibular, número de alunos ingressantes, matriculados e diplomados, índice de evasão, envolvimento do discente com pesquisa, índice de reprovação, conceito do Exame Nacional de Desempenho de Estudantes (Enade) e Conceito Preliminar de Curso (CPC). A partir de seis indicadores, a análise de agrupamentos dividiu os 63 cursos analisados em quatro grupos. Os grupos formados mostraram-se heterogêneos, sendo o primeiro formado por cursos com alta demanda no vestibular e alto número de matriculados, o segundo por maior envolvimento com a pesquisa, o terceiro por atraso na integralização do curso e o quarto pelos maiores índices de reprovação e evasão. A análise discriminante foi utilizada para validar os resultados e mostrou um resultado satisfatório, com três funções discriminantes estatisticamente significantes, classificando corretamente 98,6% das observações sob análise.
Um panorama sobre os estudos relacionados à temática educação e sustentabilidade
Authors: Rocha Adilson Carlos da , Camargo Caroline Rosseto , Kneipp Jordana Marques , Ávila Lucas Veiga , Madruga Lúcia Rejane da Rosa Gama
Published: April 2013

O estudo tem como objetivo analisar as características das publicações sobre Educação e Sustentabilidade (Education and Sustainability), nas bases de dados Web of Science (WOS) e Scopus, no período de 1991 a 2012, e identificar quais tópicos estão sendo estudados junto a este tema e quais são os mais relevantes (hot topics), realizando uma comparação dos resultados encontrados nas duas bases de dados (WOS e Scopus).  O estudo possui abordagem quantitativa tendo em vista que procurou quantificar algumas variáveis referentes à produção científica sobre o tema pesquisado. A busca das publicações sobre Educação e Sustentabilidade no período de 1991 a 2012, encontrou 2.419 publicações na base WOS e 5.124 na Scopus. Comparando-se ambas as bases pesquisadas verificou-se que o número de publicações aumentou de forma expressiva na última década e que os Estados Unidos lidera o ranking quanto ao número de publicações. Percebe-se que em ambas as bases de dados, os autores das publicações mais citadas não estão entre os autores que mais publicaram no período. Constatou-se que as publicações com maior número de citações estão relacionadas à área da saúde, e, as publicações que ocupam 1º e 2º lugar no ranking das mais citadas são as mesmas tanto na base WOS quanto na Scopus.
Qualidade na percepção discente do curso de administração
Authors: Poffo Gabriella Depine , Marinho Sidnei Vieira
Published: April 2013

Este estudo visa identificar a percepção dos discentes do curso de Administração da Faculdade AVANTIS referente a qualidade educacional desta cátedra, tendo por direcionamento a aplicação do Modelo Hedperf sugerido por Firdaus (2006). Como mecanismo de aprofundar a percepção dos discentes, a pesquisa foi dividida entre ingressantes e concluintes para responder a respectiva questão que embasa este estudo: Qual a percepção dos acadêmicos do curso de Administração em relação à qualidade? Para a realização desta proposta, o presente artigo estruturar-se-á do seguinte modo: I) introdução referente ao tema proposto e apresentação dos objetivos; II) uma breve revisão sobre o conceito de qualidade; III) caracterização do Modelo Hedperf, instrumento desta pesquisa; IV) procedimentos metodológicos para direcionamento dos objetivos e questão problema; V) Resultados obtidos através dos dados coletados e sua análise; e, por fim, VI) as considerações finais do estudo aqui proposto.
Desafíos y problemáticas de la gestión universitaria en el sistema de la educación superior pública, aspectos a considerar en la región centroamericana
Authors: Vargas Guiselle María Garbanzo , Estrada Francisco Romero
Published: April 2013

Los autores presentan una revisión de las principales problemáticas a las que se expone  la gestión de la educación superior  pública en general, llamando la atención sobre aspectos fundamentales a considerar  en la región centroamericana dada su particularidad. Se sintetizan y desarrollan una serie de desafíos ante los cuales la administración universitaria debe responder con altos niveles de eficiencia y eficacia y continuar manteniendo su rol social en beneficio de las mayorías. Entre los principales desafíos y problemáticas se presentan: autoevaluación y acreditación, aseguramiento de la calidad, acceso y pertinencia social, políticas de admisión inclusivas que promuevan el ingreso a las poblaciones estudiantiles, mantener y fortalecer los diferentes programas socioeconómicos dirigidos a la población estudiantil, capacidad instalada, Monitoreo académico – estudiantil, descentralización de la oferta educativa, fortalecimiento de vínculos entre el sector universitario y los otros niveles de la educación, financiamiento de la educación superior, generación de conocimiento innovador y gestión de la investigación.
Gestão ambiental e sustentabilidade em instituições de ensino superior: construção de conhecimento sobre o tema
Authors: Chaves Leonardo Corrêa , Freitas Claudio Luiz de , Ensslin Leonardo , Pfitscher Elisete Dahmer , Petri Sérgio Murilo , Ensslin Sandra Rolim
Published: April 2013

A atual pressão mundial pela conscientização ambiental atingiu diferentes instituições tais como empresas, instituições filantrópicas e universidades. Estas, como formadoras de opinião e prestadoras de serviços à sociedade, transmitem a conscientização ambiental por meio da gestão socioambiental. Desta forma, o objetivo do trabalho, de natureza exploratório-descritiva, é construir o conhecimento sobre o tema gestão sócio ambiental em instituições de ensino, utilizando o Knowledge Development Process – Constructivist (ProKnow-C) como instrumento de intervenção. Como resultados identificou-se um Portfólio Bibliográfico (PB) composto por 14 artigos e, através deste PB, constatou-se que os periódicos International Journal of Sustainability in Higher Education e Journal of Cleaner Production são os mais alinhados ao tema. O artigo mais citado do PB é Toward sustainable management: the University of Michigan Housing Division's approach. O autor Shriberg, M. é o autor com mais trabalhos no PB e os autores Velazquez, L. e Munguia, N. são os mais citados no PB. A palavra-chave mais utilizada no PB é Higher Education seguida por sustainable development, sustainability e Environmental Management.
Inovação de marketing em Instituições de Ensino Superior da Serra Gaúcha
Authors: Guimarães Julio Cesar Ferro de , Coutinho Carina Vedooto Scheneider , Lain Gabriela Cristina , Milan Gabriel Sperandio , Severo Eliana Andréa
Published: April 2013

Na perspectiva do contexto econômico das organizações, a inovação tem sido alvo de estudo de acadêmicos e empresários, pois apresenta a capacidade de transformar economicamente a situação de uma organização, já que esta é um fator que potencializa a competitividade. As organizações buscam inovações para que através destas melhorem sua performance. Estas inovações ocorrem em diversos setores da economia, como é o caso das Instituições de Ensino Superior (IES). Este setor de serviços cresce na medida em que a população aumenta a capacidade de consumo, o que é evidenciado na demanda por serviços educacionais, pois os profissionais necessitam estar com formação adequada às exigências do mercado. O tema central desta pesquisa é a inovação de marketing em IES, que prestam serviços educacionais de graduação e pós-graduação, na região denominada Corede Serra, a qual conta com 31 municípios, com uma das menores taxas de analfabetismo (2,66%) do Brasil. O maior município do Corede Serra é Caxias do Sul, situado na Serra Gaúcha, com 435.564 habitantes, no qual estão sediadas as três IES estudadas. Este trabalho é uma pesquisa qualitativa, descritiva, com escopo de estudo de casos múltiplos, que tem como objetivo identificar e descrever as inovações de marketing, ocorridas nos anos de 2010 e 2011. Os benefícios encontrados no estudo referem-se a melhoria na comunicação com alunos e fornecedores, bem como, a melhoria na qualidade de serviços de suporte, focadas no marketing de relacionamento.
Data-based assessment of environmental controls on global marine nitrogen fixation
Authors: Luo Y.-W. , Lima I. D. , Karl D. M. , Doney S. C.
Published: April 2013

Abstract. There are a number of hypotheses for the environmental controls on marine nitrogen fixation (NF). Most of these hypotheses have not been assessed against direct measurements on the global scale. In this study, we use ~ 500 depth-integrated field measurements of NF covering the Pacific and Atlantic Oceans to test whether the spatial variance of these measurements can be explained by the commonly hypothesized environmental controls, including measurement-based surface solar radiation, mixed layer depth, sea surface temperature, surface nitrate and phosphate concentrations, surface excess phosphate (P*), atmospheric dust deposition and surface wind speed, as well as minimum dissolved oxygen in upper 500 m to identify possible subsurface denitrification zones. By conducting simple linear regression and stepwise multiple linear regression (MLR) analyses, solar radiation and/or sea surface temperature as well as subsurface dissolved oxygen are identified as the predictors explaining the most spatial variance in the observed NF data, while dust deposition and wind speed do not appear to influence the spatial patterns of NF on global scale. Our study suggests that marine NF is coupled to regional loss of fixed nitrogen induced by subsurface low oxygen concentration, with its magnitude constrained by solar radiation or temperature. By applying the MLR-derived equation, we estimate the global-integrated NF at 71 (error range 49–104) Tg N yr−1 in the open ocean, acknowledging that it could be substantially higher as the 15N2-assimilation method used by most of the field samples underestimates NF. Our conclusion suggests that marine NF will increase in the future if subsurface nitrogen-losses increase as a consequence of developing deoxygenation with the global warming, a projection that will be modulated by other factors such as warming, elevated carbon dioxide, and changes in macro- and micro-nutrient distributions. More field NF samples in the Pacific and Indian Oceans, particularly in the oxygen minimum zones, are needed to reduce uncertainties in our conclusion.
Effects of ocean acidification on the larval growth of olive flounder (Paralichthys olivaceus)
Authors: Kim K.-S. , Shim J. H. , Kim S.
Published: April 2013

Abstract. Little is known about how marine fishes respond to the reduced pH condition caused by the increased CO2 in the atmosphere. We investigated the effects of CO2 concentration on the growth of olive flounder (Paralichthys olivaceus) larvae. Newly hatched larvae were reared in three different concentrations of CO2 (574, 988 and 1297 μatm CO2) in temperature-controlled water tanks until metamorphosis (4 weeks). Body lengths, weights, and the concentration of some chemical elements in larval tissue were measured at the completion of each experiment, and experiment was repeated three times in May, June, and July 2011. Results indicated that body length and weight of flounder larvae were significantly increased with increasing CO2 concentration (P < 0.05). Daily growth rates of flounder larvae were higher (0.391 mm) from the high CO2 concentration (1297 μatm) than those (0.361 mm and 0.360 mm) from the lower ones (988 and 574 μatm).The measurement on some chemical elements (Ca, Fe, Cu, Zn and Sr) in fish tissue also revealed the increasing tendency of element concentration with increasing CO2 in seawater, although statistical significance cannot be tested due to the single measurement. It suggests that there are enrichment processes of these cations in larval tissue in the low pH condition.
Dissolved Fe across the Weddell Sea and Drake Passage: impact of DFe on nutrients uptake in the Weddell Sea
Authors: Klunder M. B. , Laan P. , De Baar H. J. W. , Neven I. , Middag R. , Van Ooijen J.
Published: April 2013

Abstract. This manuscript reports the first full depth distributions of dissolved iron (DFe) over a high resolution Weddell Sea and Drake Passage transect. Very low dissolved DFe concentrations (0.01–0.1 nM range) were observed in the surface waters in the Weddell Sea, and within the Polar regime in the Drake Passage. Locally, enrichment in surface DFe was observed, likely due to recent ice melt (Weddell Sea) or dust deposition (Drake Passage). In the Weddell Sea, the low DFe concentrations can be partly explained by high POC export and/or primary production (indicated by chlorophyll fluorescence). As expected, in high DFe regions a strong silicate drawdown compared to nitrate drawdown was observed. However, this difference in drawdown between these nutrients appears not related to biological activity on the Peninsula shelf. In the Western Weddell Sea transect, with relatively small diatoms, no relationship between N:P and N:Si removal ratios and DFe was observed. For comparison, nutrient depletion is also presented for a transect along the Greenwich Meridian (Klunder et al., 2011), where diatoms are significantly larger, the N:P and N:Si removal ratio increased with increasing DFe. These findings confirm the important role of DFe in Southern Ocean (biologically mediated) nutrient cycles. Over the shelf around the Antarctic Peninsula, higher DFe concentrations (> 1.5 nM) were observed. These elevated concentrations of Fe were transported into Drake Passage along isopycnal surfaces. At the South American continent, high (> 2 nM) DFe concentrations were caused by fluvial/glacial input of DFe. On the Weddell Sea side of the Peninsula region, formation of deep water (by downslope convection) caused relatively high Fe (0.6–0.8 nM) concentrations in the bottom waters relative to the water masses at mid depth (0.2–0.4 nM). During transit of Weddell Sea Bottom Water to Drake Passage, through the Scotia Sea, extra DFe is taken up from seafloor sources, resulting in highest bottom water concentrations in the southernmost part of the Drake Passage of > 1 nM. The Weddell Sea Deep Water concentrations (~ 0.32 nM) were consistent with the lowest DFe concentrations observed in Atlantic AABW.
Enhancing the accuracy of automatic eddy detection and the capability of recognizing the multi-core structures from maps of sea level anomaly
Authors: Yi J. , Du Y. , He Z. , Zhou C.
Published: April 2013

Abstract. Automated methods are important for automatically detecting mesoscale eddies in large volumes of altimeter data. While many algorithms have been proposed in the past, this paper presents a new method, called Hybrid Detection (HD), to enhance the eddy detection accuracy and the capability of recognizing eddies' multi-core structures from maps of sea level anomaly (SLA) by integrating the ideas of the Okubo–Weiss (OW) method and the sea-surface-height-based (SSH-based) method, two well-known eddy detection algorithms. Detection evaluation using an objective validation protocol shows that the HD method owns ~ 96.6% successful detection rate and ~ 14.2% excessive detection rate, which outperforms the OW method and other methods that identify eddies by SLA extrema and confirms the improvement in detection accuracy. The capability of recognizing multi-core structures and its significance in tracking eddies' splitting or merging events have been well illustrated by comparing with other detection algorithms and historical studies.
Parvovirus B19 Achievements and Challenges
Authors: Gallinella Giorgio
Published: April 2013

Parvovirus B19 is a widespread human pathogenic virus, member of theErythrovirusgenus in the Parvoviridae family. Infection can be associated with an ample range of pathologies and clinical manifestations, whose characteristics and outcomes depend on the interplay between the pathogenetic potential of the virus, its adaptation to different cellular environments, and the physiological and immune status of the infected individuals. The scope of this review is the advances in knowledge on the biological characteristics of the virus and of virus-host relationships; in particular, the interactions of the virus with different cellular environments in terms of tropism and ability to achieve a productive replicative cycle, or, on the contrary, to establish persistence; the consequences of infection in terms of interference with the cell physiology; the process of recognition of the virus by the innate or adaptive immune system, hence the role of the immune system in controlling the infection or in the development of clinical manifestations. Linked to these issues is the continuous effort to develop better diagnostic algorithms and methods and the need for development of prophylactic and therapeutic options for B19V infections.
An Improved PMSM Drive Architecture Based on BFO and Neural Network
Authors: Aymen Flah , Lassâad Sbita
Published: April 2013

In this paper, an improved robust vector control strategy is designed to drive the Permanent magnet synchronous motor in a wide speed range mode. The designed control method guarantees the precision and robustness of speed regulation performance by using recurrent neural network architecture. The stator current controller parameter tuning problems, which characterize this control strategy, are resolved using a bacterial foraging optimization algorithm to find the optimal parameters of the current controllers used. A field weakening control algorithm generates an adaptive magnetizing current command to achieve the desired high speed mode. The robustness and effectiveness of the global control scheme are verified through computer simulations established under a Matlab-Simulink environment.
Inverse Kinematics of a Humanoid Robot with Non-Spherical Hip: A Hybrid Algorithm Approach
Authors: Limón Rafael Cisneros , Ibarra Zannatha Juan Manuel , Armada Rodríguez Manuel Ángel
Published: April 2013

This paper describes an approach to solve the inverse kinematics problem of humanoid robots whose construction shows a small but non negligible offset at the hip which prevents any purely analytical solution to be developed. Knowing that a purely numerical solution is not feasible due to variable efficiency problems, the proposed one first neglects the offset presence in order to obtain an approximate “solution” by means of an analytical algorithm based on screw theory, and then uses it as the initial condition of a numerical refining procedure based on the Levenberg-Marquardt algorithm. In this way, few iterations are needed for any specified attitude, making it possible to implement the algorithm for real-time applications. As a way to show the algorithm's implementation, one case of study is considered throughout the paper, represented by the SILO2 humanoid robot.
Clustering and PCA for Reconstructing Two Perpendicular Planes Using Ultrasonic Sensors
Authors: Spedicato Luigi , Giannoccaro Nicola Ivan , Reina Giulio , Bellone Mauro
Published: April 2013

In this paper, the authors make use of sonar transducers to detect the corner of two orthogonal panels and they propose a strategy for accurately reconstructing the surfaces. In order to point a linear array of four sensors at the desired position, the motion of a digital motor is appropriately controlled. When the sensors are directed towards the intersection between the planes, longer times of flight are observed because of multiple reflections. All the concerned distances have to be excluded and that is why an indicator based on the output signal energy is introduced. A clustering technique allows for the partitioning of the dataset in three clusters and the indicator selects the subset containing misrepresented information. The remaining distances are corrected so as to take into consideration the directivity and they permit the plotting of two sets of points in a three-dimensional space. In order to leave out the outliers, each set is filtered by means of a confidence ellipsoid which is defined by the Principal Component Analysis (PCA). The best-fit planes are obtained based on the principal directions and the variances. Experimental tests and results are shown demonstrating the effectiveness of this new approach.
A Framework for Obstacles Avoidance of Humanoid Robot Using Stereo Vision
Authors: Budiharto Widodo , Moniaga Jurike , Aulia Meiliana , Aulia Alvina
Published: April 2013

In this paper, we propose a framework for multiple moving obstacles avoidance strategy using stereo vision for humanoid robot in indoor environment. We assume that this model of humanoid robot is used as a service robot to deliver a cup to customer from starting point to destination point. We have successfully developed and introduced three main modules to recognize faces, to identify multiple moving obstacles and to initiate a maneuver. A group of people who are walking will be tracked as multiple moving obstacles. Predefined maneuver to avoid obstacles is applied to robot because the limitation of view angle from stereo camera to detect multiple obstacles. The contribution of this research is a new method for multiple moving obstacles avoidance strategy with Bayesian approach using stereo vision based on the direction and speed of obstacles. Depth estimation is used to obtain distance calculation between obstacles and the robot. We present the results of the experiment of the humanoid robot called Gatotkoco II which is used our proposed method and evaluate its performance. The proposed moving obstacles avoidance strategy was tested empirically and proved effective for humanoid robot.
Multi-Sensor Localization and Navigation for Remote Manipulation in Smoky Areas
Authors: Marti Jose Vicente , Sales Jorge , Marin Raul , Sanz Pedro
Published: April 2013

When localizing mobile sensors and actuators in indoor environments laser meters, ultrasonic meters or even image processing techniques are usually used. On the other hand, in smoky conditions, due to a fire or building collapse, once the smoke or dust density grows, optical methods are not efficient anymore. In these scenarios other type of sensors must be used, such as sonar, radar or radiofrequency signals. Indoor localization in low-visibility conditions due to smoke is one of the EU GUARDIANS [ 1 ] project goals.

The developed method aims to position a robot in front of doors, fire extinguishers and other points of interest with enough accuracy to allow a human operator to manipulate the robot's arm in order to actuate over the element. In coarse-grain localization, a fingerprinting technique based on ZigBee and WiFi signals is used, allowing the robot to navigate inside the building in order to get near the point of interest that requires manipulation. In fine-grained localization a remotely controlled programmable high intensity LED panel is used, which acts as a reference to the system in smoky conditions. Then, smoke detection and visual fine-grained localization are used to position the robot with precisely in the manipulation point (e.g., doors, valves, etc.).
A Simulated Annealing-Based Heuristic Algorithm for Job Shop Scheduling to Minimize Lateness
Authors: Zhang Rui
Published: April 2013

A decomposition-based optimization algorithm is proposed for solving large job shop scheduling problems with the objective of minimizing the maximum lateness. First, we use the constraint propagation theory to derive the orientation of a portion of disjunctive arcs. Then we use a simulated annealing algorithm to find a decomposition policy which satisfies the maximum number of oriented disjunctive arcs. Subsequently, each subproblem (corresponding to a subset of operations as determined by the decomposition policy) is successively solved with a simulated annealing algorithm, which leads to a feasible solution to the original job shop scheduling problem. Computational experiments are carried out for adapted benchmark problems, and the results show the proposed algorithm is effective and efficient in terms of solution quality and time performance.
Balance Analysis of the Mobile Anthropomimetic Robot Under Disturbances – ZMP Approach
Authors: Antoska Vesna , Jovanović Kosta , Petrović Vladimir M. , Baščarević Nenad , Stankovski Mile
Published: April 2013

Throughout the history of technological progress, attempts have been made to build a machine that looks and behaves like humans. This paper presents a semi-anthropomimetic robot. The robot structure consists of a human-like upper body mounted on a mobile platform (mobile base, cart). The robot uses the three-wheeled mobile platform with two driving wheels and one passive (caster) wheel. The configuration and model of the upper body are represented as an anthropomimetic, compliant robot with antagonistically coupled drives. Robust control is evaluated in order to ensure stability of the robot position. The aim of this work is not the synthesis of control, but rather the examination of the limits of the adopted robot control strategy and the robot behaviour under disturbances (analysis of tip-over stability). The paper analyses both disturbances from the cart motion and external disturbances due to interaction with the environment (external impulse and long term external force). In order to analyse the balance of the robot and to avoid tipping over, different situations are tested and the appropriate dimensions of the cart are estimated (relying on the ZMP calculation).
Designing High Performance Factory Automation Applications on Top of DDS
Authors: Calvo Isidro , Pérez Federico , Etxeberria-Agiriano Ismael , de Albéniz Oier García
Published: April 2013

DDS is a recent specification aimed at providing high-performance publisher/subscriber middleware solutions. Despite being a very powerful flexible technology, it may prove complex to use, especially for the inexperienced. This work provides some guidelines for connecting software components that represent a new generation of automation devices (such as PLCs, IPCs and robots) using Data Distribution Service (DDS) as a virtual software bus. More specifically, it presents the design of a DDS-based component, the so-called Automation Component, and discusses how to map different traffic patterns using DDS entities exploiting the wealth of QoS management mechanisms provided by the DDS specification. A case study demonstrates the creation of factory automation applications out of software components that encapsulate independent stations.
An Analytical Approach for Comparing Linearization Methods in EKF and UKF
Authors: Rhudy Matthew , Gu Yu , Napolitano Marcello R.
Published: April 2013

The transformation of the mean and variance of a normally distributed random variable was considered through three different nonlinear functions: sin(x), cos(x), and xk, where k is a positive integer. The true mean and variance of the random variable after these transformations is theoretically derived within, and verified with respect to Monte Carlo experiments. These statistics are used as a reference in order to compare the accuracy of two different linearization techniques: analytical linearization used in the Extended Kalman Filter (EKF) and statistical linearization used in the Unscented Kalman Filter (UKF). This comparison demonstrated the advantage of using the unscented transformation in estimating the mean after transforming through each of the considered nonlinear functions. However, the variance estimation led to mixed results in terms of which linearization technique provided the best performance. As an additional analysis, the unscented transformation was evaluated with respect to its primary scaling parameter. A nonlinear filtering example is presented to demonstrate the usefulness of the theoretically derived results.
Adéla Gjuričová, Michal Kopeček, Petr Roubal, Jiří Suk a Tomáš Zahradníček. Rozděleni minulostí. Vytváření politických identit v České republice po roce 1989
Authors: Kopeček Lubomír
Published: April 2013

Knižní recenze
Adenomyoepithelioma of the Breast: A Brief Diagnostic Review
Authors: Yoon Ji Yoon , Chitale Dhananjay
Published: April 2013

Adenomyoepithelioma of the breast is an uncommon tumor characterized by dual differentiation into luminal cells and myoepithelial cells. A spectrum of histologic patterns is observed among these tumors and even in different areas of individual tumors. These lesions can be diagnostically challenging, especially when a core needle biopsy is performed, because of the heterogeneity of adenomyoepitheliomas. Recognition of the biphasic cellular elements and the characteristic overall architecture of the tumors in combination with immunohistochemistry are essential to establish the correct diagnosis. Although most tumors have a benign clinical course, local recurrences, malignant transformations, and distant metastases have been reported. All the reported malignant adenomyoepitheliomas with metastases have shown significant cytologic atypia and brisk mitotic rates. Therefore, adequate sampling of the tumor to identify these features is necessary. A complete excision with adequate margins would lower the chance of local recurrence or potential for metastasis.
Plasma Cell Enrichment Enhances Detection of High-Risk Cytogenomic Abnormalities by Fluorescence In Situ Hybridization and Improves Risk Stratification of Patients With Plasma Cell Neoplasms
Authors: Lu Gary , Muddasani Ramya , Orlowski Robert Z. , Abruzzo Lynne V. , Qazilbash Muzaffar H. , You M. James , Wang Yaping , Zhao Ming , Chen Su , Glitza Isabella Claudia , Medeiros L. Jeffrey
Published: April 2013

Context.—Methods for plasma cell enrichment of bone marrow (BM) specimens can increase the sensitivity of fluorescence in situ hybridization (FISH) for detecting cytogenomic abnormalities. There are no published reports using these methods to evaluate high-risk cytogenomic abnormalities in patients with plasma cell neoplasms (PCNs) after therapy.

Objective.—To evaluate the utility of plasma cell enrichment combined with FISH for detection of high-risk cytogenomic abnormalities in patients with PCNs after therapy.

Design.—Twenty-eight patients with PCNs, of whom 22 received treatment, were included in this study. Plasma cells were enriched in BM aspirates by using a magnetic cell-sorting procedure to select CD138+ cells. Probes were chosen to assess for del(17p13/TP53), del(13q14/RB1), 1q21/CKS1B gain, IgH/FGFR3, and IgH/MAF. Clinicopathologic data were collected during clinical follow-up after plasma cell enrichment.

Results.—Plasma cells in nonenriched BM specimens ranged from 1% to 28% (median, 8%) compared with 28% to 96% (median, 73%) in enriched BM specimens (P < .001). In a subset of treated patients in clinical remission, FISH detected high-risk cytogenomic abnormalities only in plasma cell–enriched samples. This approach also detected abnormalities in cases of solitary plasmacytoma and monoclonal gammopathy of undetermined significance.

Conclusions.—Plasma cell enrichment of BM specimens increases FISH sensitivity for detecting high-risk cytogenomic abnormalities, particularly in treated patients, and these results, in combination with clinical follow-up data, can be of value to improve risk stratification and patient management.
"Where shall I place my imaginary coterie?": Sociality and Public Discourse in Leigh Hunt’s London Journal
Authors: Lendrum Chris
Published: April 2013

In 1834, Leigh Hunt launched the Leigh Hunt's London Magazine with the express purpose of "bringing into public intercourse the same candour and simplicity that are practised between friends in private." While this goal could be considered to be entirely apolitical, this essay suggests that Hunt's desire to establish a close, intimate relationship with his readers is actually an attempt to resist what he felt was the degraded and impersonal nature of periodical literature. By creating a public space in his publication—a coffee-house in print, if you will—Hunt hoped to revitalize the periodical literature that he loved and, by extension, reinvigorate the public discourse that he felt had become stale and unproductive.
Representing Orality: Scott’s The Lay of the Last Minstrel and Conjectural History
Authors: Regan John
Published: April 2013

This article contextualizes Walter Scott's The Lay of the Last Minstrel in relation to an Edinburgh literary milieu influenced by some the most famous progenitors of Scottish Enlightenment historical theory. After a preliminary survey of the intellectual landscape out of which Scott's poem comes, the discussion is orientated specifically around the influence, on Scott, of Adam Ferguson's seminal conjectural history, the Essay on the History of Civil Society. Oral poetry is integral to Ferguson's nuanced deteriorationist narrative of human development, and it is my central contention that The Lay is the apotheosis of a Romantic anxiety over the representation of preliterary verse. This article's primary area of interest is not the poetry of The Lay itself but the discourses of history, historicity, verse and versification to which Scott, Adam Ferguson, Francis Jeffrey and several others contributed before, during and after the poem's publication.
Les premières descriptions du Canada par le jésuite Pierre Biard. Du témoignage oculaire à sa réécriture
Authors: Westra Haijo
Published: April 2013

C’est un fait peu connu que, bien avant leur établissement en Nouvelle-France en 1625, les Jésuites avaient inauguré, dès 1611, une première mission en Acadie. En ce sens, parce que la mission acadienne représente la première rencontre des Jésuites avec les peuples autochtones du Canada, elle mérite plus d’intérêt qu’elle n’en a reçu à ce jour. Cet article entend examiner, en les comparant, trois textes en lien avec cette mission. Cette comparaison nous permettra d’observer des différences sémantiques, stylistiques et idéologiques importantes entre les récits, datés de 1612 et 1616, qui sont du père Biard et celui, daté de 1618, qu’on lui attribue et qui pourrait bien être de la main de Philibert Monet, rédacteur à Rome.
Le latin comme outil de grammatisation des langues « sauvages » en Nouvelle-France : à propos des notes du P. Louis André sur la langue algonquine outaouoise (introduction, édition du texte latin et traduction)
Authors: Cottier Jean-François
Published: April 2013

Dès les débuts de l’installation des Français en Nouvelle-France, on voit les missionnaires se mettre à l’étude des langues autochtones et fabriquer presque simultanément différents outils d’apprentissage dans un effort manifeste de grammatisation. Ce processus de description des langues amérindiennes s’inscrit dans un mouvement plus général de linguistique missionnaire, dont les fondements théoriques reposent sur la croyance de l’époque en un langage mental originel. Le latin étant utilisé comme modèle de référence pour décrire les langues « sauvages », la perspective s’en trouve forcément faussée. Cet article propose une première réflexion sur ce phénomène en se fondant en particulier sur l’édition et l’analyse des « Notes sur l’algonquin » du P. Louis André, missionnaire auprès des Montagnais entre 1693 et 1709.
« C’est du latin, ignorant… » : l’intertextualité classique dans Les anciens Canadiens de Philippe Aubert de Gaspé
Authors: Trujic Irena
Published: April 2013

Cet article se propose de montrer comment et à quelles fins Philippe Aubert de Gaspé reprend l’Énéide de Virgile comme intertexte pour créer la Nouvelle-France des Anciens Canadiens (1863). Peuplée de créatures mythologiques qui disparaîtront avec la Conquête anglaise, celle-ci apparaît comme une véritable terre littéraire parfaitement lisible pour les contemporains de Gaspé formés dans les collèges classiques.
Comment retrouver la dignité de penser dans une société d’automatismes ?
Authors: Gori Roland
Published: April 2013

À partir des deux principales significations du mot « engagement », celle qui fait du sujet l’acteur d’une promesse et celle qui le voue à la contrainte des automatismes, l’auteur évoque les logiques de domination et d’émancipation sociale de la civilisation actuelle. Il montre comment les formes de savoir et les formes de pouvoir sont inséparables et propose la thèse selon laquelle la récusation de la psychanalyse aujourd’hui dépend étroitement de son appartenance au savoir narratif.
Nelly me tangere
Authors: Peterson Michel
Published: April 2013

Avant tout, Nelly Arcan fut une écrivaine. Malheureusement, le personnage public a pris une telle place qu’il en est venu à être pratiquement le seul foyer d’attention des lecteurs. Mais l’oeuvre continue de creuser un sillon dans l’insu de la différance sexuelle dans ce qu’elle a de traumatique. Les narratrices de ses textes jouent de la proximité et de l’éloignement les plus grands qui soient entre les corps, nous obligeant à repenser l’oedipe à une époque où les technologies sont en passe de mettre sous tension les certitudes cliniques et théoriques de la psychanalyse, avec des concepts et des catégories qui semblaient assurées. L’oeuvre de Nelly Arcan, plongeant dans nos histoires les plus archaïques, ouvre ainsi la dimension de l’hétéro-narcissisme.
De la naissance de la psychanalyse à la naissance de la philosophie. Ou deux étonnantes métamorphoses d’Éros
Authors: Bossé Jean
Published: April 2013

Dans cet essai, l’auteur établit un parallélisme entre d’une part, la naissance de la philosophie comme discipline et l’importance que la relation Platon-Socrate y a jouée et, d’autre part, la naissance de la psychanalyse et la relation amoureuse (transfert) que fut celle de Freud à l’égard de Fliess. Ce faisant, il nous convie à une lecture attentive et renouvelée de leur célèbre correspondance et du Banquet de Platon.
Financial markets
Authors: Cetina Karin Knorr
Published: April 2013

Markets of one kind or another are commonplace in known Western and non‐Western history, and they are central to capitalist economies. What differentiates the capitalist economy from the socialist economy, from gift giving, tribute, subsistence economies, and kinship‐based economic patterns, is how we organize the production and distribution of goods and services – through markets (Polanyi 1968; Swedberg 2003: 104–105). Financial markets in particular have a stunning and ever more ambivalent presence in our world. They are dramatized in public discourse where their ups and downs are endlessly reported. And they dramatize our lives; the financial crisis of 2008–2009 surely made it apparent that financial markets have become a measure of well‐being in countries where individuals depend on them for pensions, credit, and income, and governments and corporations for growth and investments. And yet, when we search for a market concept capturing what we observe in a financial market, we will not readily find it in sociology or even economics. When most people think market, they think of primary or production markets – the domain where goods and services produced in one sector of the economy are sold to consumers (but see Baker 1984; Smith 1981). The literature on markets is no exception; most analysts either directly refer to production markets, or appear to have them in mind when they talk about markets. Yet the market environment in complex Western societies is highly differentiated; production markets and financial markets, for instance, have distinctive histories, respond to different needs, and exhibit different regimes of action and coordination.
CARICOM
Authors: Reddock Rhoda , Lamb Alicia
Published: April 2013

The Caribbean Community (CARICOM), formerly known as the Caribbean Community and Common Market, is a regional organization comprising 15 Caribbean full Member States: Antigua and Barbuda, Bahamas, Barbados, Belize, Dominica, Grenada, Guyana, Haiti, Jamaica, Montserrat, St. Kitts and Nevis, St. Lucia, St. Vincent and the Grenadines, Suriname, and Trinidad and Tobago. Additionally, five dependent territories are Associate Members which have limited rights and obligations within CARICOM, namely Anguilla, Bermuda, British Virgin Islands, Cayman Islands, and Turks and Caicos Islands.CARICOM was preceded by the Caribbean Free Trade Association (CARIFTA), which lasted from 1965 to 1972 and was organized to provide stronger economic relationships among Englishn‐speaking countries in the Caribbean. At the Seventh Heads of Government Conference in October 1972 in Guyana, the members decided that steps should be taken to further deepen the integration process by transforming the free trade association (CARIFTA) into a common market and by establishing the Caribbean Community of which the Common Market would be an integral part.
Filtered two‐fluid models of fluidized gas‐particle flows: New constitutive relations
Authors: Milioli Christian C. , Milioli Fernando E. , Holloway William , Agrawal Kapil , Sundaresan Sankaran
Published: April 2013

New constitutive relations for filtered two‐fluid models (TFM) of gas‐particle flows are obtained by systematically filtering results generated through highly resolved simulations of a kinetic theory‐based TFM. It was found in our earlier studies that the residual correlations appearing in the filtered TFM equations depended principally on the filter size and filtered particle volume fraction. Closer inspection of a large amount of computational data gathered in this study reveals an additional, systematic dependence of the correction to the drag coefficient on the filtered slip velocity, which serves as a marker for the extent of subfilter‐scale inhomogeneity. Furthermore, the residual correlations for the momentum fluxes in the gas and particle phases arising from the subfilter‐scale fluctuations are found to be modeled nicely using constitutive relations of the form used in large‐eddy simulations of single‐phase turbulent flows. © 2013 American Institute of Chemical Engineers AIChE J, 59: 3265–3275, 2013
Fallback foods, preferred foods, adaptive zones, and primate origins
Authors: Rosenberger Alfred L.
Published: April 2013

Appreciation has grown for the impact of tropical forest seasonality and fallback foods on primate diets, behaviors, and morphology. As critically important resources in times of shortage, seasonal fallback foods may have an outsized role in selecting for form and function while the diversity of preferred plant foods has played an equally prominent role in shaping primate evolution. Here, hypotheses of primate origins are examined in the context of food choice models developed by Marshall and Wrangham [2007] and related to the broader concepts of adaptive zones and radiations. The integrated evolution of primate diet and positional behavior is consistent with a growing reliance on angiosperm products—not prey—as preferred and seasonal fallback foods, temporally and phylogenetically coordinated with evolutionary phases of the angiosperm adaptive radiation. Selection for an incisor oriented but non‐specialized heterodont dentition, in contrast with most other orders, attests to the universal role of a highly varied vegetation diet as the primates' primary food resource, with diverse physical properties, phenology and high seasonality. A preference by plesiadapiforms for eating small protein‐ and lipid‐rich seeds may have predisposed the primates and advanced angiosperms to diversify their evolving ecological interdependence, which established the primate adaptive zone and became realized more fully with the rise of the modern euprimate and angiosperm phenotypes. The “narrow niche” hypothesis, a recent challenge to the angiosperm co‐evolution hypothesis, is evaluated further. Finally, I note support for visual predation as a core adaptive breakthrough for primates or euprimates remains elusive and problematic, especially considering the theoretical framework provided by the Marshall–Wrangham model, updated evidence of primate feeding habits and the counterpoint lessons of the most successful primate predators, the tarsiiforms. Am. J. Primatol. 75:883–890, 2013. © 2013 Wiley Periodicals, Inc.
Critical Comments on “One Molecule, Two Atoms, Three Views, Four Bonds?”
Authors: Frenking Gernot , Hermann Markus
Published: April 2013

Die Argumente, die im Original‐Trialog zugunsten eines vierfach gebundenen C2vorgebracht werden, dessen Bindung angeblich stärker ist als die in HCCH, werden von den Autoren dieser Korrespondenz als ungültig beurteilt. Sie widersprechen außerdem einigen Aussagen über die Stabilität von Molekülen und den Wert chemischer Forschung jenseits der Synthesechemie.