bluuebunny/crossref_metadata_2025 huggingface dataset:
Contagions in random networks with overlapping communities
Authors: Coupechoux Emilie , Lelarge Marc
Published: December 2015

We consider a threshold epidemic model on a clustered random graph model obtained from local transformations in an alternating branching process that approximates a bipartite graph. In other words, our epidemic model is such that an individual becomes infected as soon as the proportion of his/her infected neighbors exceeds the threshold q of the epidemic. In our random graph model, each individual can belong to several communities. The distributions for the community sizes and the number of communities an individual belongs to are arbitrary. We consider the case where the epidemic starts from a single individual, and we prove a phase transition (when the parameter q of the model varies) for the appearance of a cascade, i.e. when the epidemic can be propagated to an infinite part of the population. More precisely, we show that our epidemic is entirely described by a multi-type (and alternating) branching process, and then we apply Sevastyanov's theorem about the phase transition of multi-type Galton-Watson branching processes. In addition, we compute the entries of the mean progeny matrix corresponding to the epidemic. The phase transition for the contagion is given in terms of the largest eigenvalue of this matrix.
Heavy-traffic limits for polling models with exhaustive service and non-FCFS service order policies
Authors: Vis P. , Bekker R. , van der Mei R. D.
Published: December 2015

We study cyclic polling models with exhaustive service at each queue under a variety of non-FCFS (first-come-first-served) local service orders, namely last-come-first-served with and without preemption, random-order-of-service, processor sharing, the multi-class priority scheduling with and without preemption, shortest-job-first, and the shortest remaining processing time policy. For each of these policies, we first express the waiting-time distributions in terms of intervisit-time distributions. Next, we use these expressions to derive the asymptotic waiting-time distributions under heavy-traffic assumptions, i.e. when the system tends to saturate. The results show that in all cases the asymptotic waiting-time distribution at queue i is fully characterized and of the form Γ Θi, with Γ and Θi independent, and where Γ is gamma distributed with known parameters (and the same for all scheduling policies). We derive the distribution of the random variable Θi which explicitly expresses the impact of the local service order on the asymptotic waiting-time distribution. The results provide new fundamental insight into the impact of the local scheduling policy on the performance of a general class of polling models. The asymptotic results suggest simple closed-form approximations for the complete waiting-time distributions for stable systems with arbitrary load values.
Randomized longest-queue-first scheduling for large-scale buffered systems
Authors: Dieker A. B. , Suk T.
Published: December 2015

We develop diffusion approximations for parallel-queueing systems with the randomized longest-queue-first scheduling (LQF) algorithm by establishing new mean-field limit theorems as the number of buffers n → ∞. We achieve this by allowing the number of sampled buffers d = d(n) to depend on the number of buffers n, which yields an asymptotic 'decoupling' of the queue length processes. We show through simulation experiments that the resulting approximation is accurate even for moderate values of n and d(n). To the best of the authors' knowledge, this is the first derivation of diffusion approximations for a queueing system in the large-buffer mean-field regime. Another noteworthy feature of our scaling idea is that the randomized LQF algorithm emulates the LQF algorithm, yet is computationally more attractive. The analysis of the system performance as a function of d(n) is facilitated by the multi-scale nature in our limit theorems: the various processes we study have different space scalings. This allows us to show the trade-off between performance and complexity of the randomized LQF scheduling algorithm.
Perfect simulation of M/G/c queues
Authors: Connor Stephen B. , Kendall Wilfrid S.
Published: December 2015

In this paper we describe a perfect simulation algorithm for the stable M/G/c queue. Sigman (2011) showed how to build a dominated coupling-from-the-past algorithm for perfect simulation of the super-stable M/G/c queue operating under first-come-first-served discipline. Sigman's method used a dominating process provided by the corresponding M/G/1 queue (using Wolff's sample path monotonicity, which applies when service durations are coupled in order of initiation of service). The method exploited the fact that the workload process for the M/G/1 queue remains the same under different queueing disciplines, in particular under the processor sharing discipline, for which a dynamic reversibility property holds. We generalise Sigman's construction to the stable case by comparing the M/G/c queue to a copy run under random assignment. This allows us to produce a naïve perfect simulation algorithm based on running the dominating process back to the time it first empties. We also construct a more efficient algorithm that uses sandwiching by lower and upper processes constructed as coupled M/G/c queues started respectively from the empty state and the state of the M/G/c queue under random assignment. A careful analysis shows that appropriate ordering relationships can still be maintained, so long as service durations continue to be coupled in order of initiation of service. We summarise statistical checks of simulation output, and demonstrate that the mean run-time is finite so long as the second moment of the service duration distribution is finite.
Finite-horizon optimality for continuous-time Markov decision processes with unbounded transition rates
Authors: Guo Xianping , Huang Xiangxiang , Huang Yonghui
Published: December 2015

In this paper we focus on the finite-horizon optimality for denumerable continuous-time Markov decision processes, in which the transition and reward/cost rates are allowed to be unbounded, and the optimality is over the class of all randomized history-dependent policies. Under mild reasonable conditions, we first establish the existence of a solution to the finite-horizon optimality equation by designing a technique of approximations from the bounded transition rates to unbounded ones. Then we prove the existence of ε (≥ 0)-optimal Markov policies and verify that the value function is the unique solution to the optimality equation by establishing the analog of the Itô-Dynkin formula. Finally, we provide an example in which the transition rates and the value function are all unbounded and, thus, obtain solutions to some of the unsolved problems by Yushkevich (1978).
Countable state Markov decision processes with unbounded jump rates and discounted cost: optimality equation and approximations
Authors: Blok H. , Spieksma F. M.
Published: December 2015

This paper considers Markov decision processes (MDPs) with unbounded rates, as a function of state. We are especially interested in studying structural properties of optimal policies and the value function. A common method to derive such properties is by value iteration applied to the uniformised MDP. However, due to the unboundedness of the rates, uniformisation is not possible, and so value iteration cannot be applied in the way we need. To circumvent this, one can perturb the MDP. Then we need two results for the perturbed sequence of MDPs: 1. there exists a unique solution to the discounted cost optimality equation for each perturbation as well as for the original MDP; 2. if the perturbed sequence of MDPs converges in a suitable manner then the associated optimal policies and the value function should converge as well. We can model both the MDP and perturbed MDPs as a collection of parametrised Markov processes. Then both of the results above are essentially implied by certain continuity properties of the process as a function of the parameter. In this paper we deduce tight verifiable conditions that imply the necessary continuity properties. The most important of these conditions are drift conditions that are strongly related to nonexplosiveness.
Uniform approximation of the Cox-Ingersoll-Ross process
Authors: Milstein Grigori N. , Schoenmakers John
Published: December 2015

The Doss-Sussmann (DS) approach is used for uniform simulation of the Cox-Ingersoll-Ross (CIR) process. The DS formalism allows us to express trajectories of the CIR process through solutions of some ordinary differential equation (ODE) depending on realizations of a Wiener process involved. By simulating the first-passage times of the increments of the Wiener process to the boundary of an interval and solving the ODE, we uniformly approximate the trajectories of the CIR process. In this respect special attention is payed to simulation of trajectories near 0. From a conceptual point of view the proposed method gives a better quality of approximation (from a pathwise point of view) than standard, even exact, simulation of the stochastic differential equation at some deterministic time grid.
Standardized orthotopic xenografts in zebrafish reveal glioma cell line specific characteristics and tumor cell heterogeneity
Authors: Welker Alessandra M. , Jaros Brian D. , Puduvalli Vinay K. , Imitola Jaime , Kaur Balveen , Beattie Christine E.
Published: December 2015

Glioblastoma (GBM) is a deadly brain cancer with few effective drug treatments available. Studies have used zebrafish to study GBM, but a standardize approach to modeling GBM in zebrafish is lacking inhibiting the ability to compare data across studies. To facilitate analysis of glioblastoma tumor cell behavior in real time and for drug screens, we generated and standardized a xenotransplant model of GBM in zebrafish. Dose response survival curves identified the optimal number of cells for tumor formation, techniques were optimized to measure tumor burden and cell spread within the brain over time in-vivo, and mouse neural stem cells were used as control transplants. Using this standardized approach, we transplanted two patient-derived GBM cell lines, serum grown adherent cells (X12) and neurospheres (GBM9) into the midbrain region of embryonic zebrafish. Analysis of larvae over time showed progressive brain tumor growth and premature death with both cell lines, however, fewer GBM9 cells were needed to cause tumor growth and lethality. Approximately half of the cells in both xenotransplants were dividing whereas control mouse neural stem cells failed to engraft and were cleared from the brain. Few GBM9 cells expressed GFAP or vimentin, markers of more differentiated cells, early, but this number increased significantly during tumor growth indicating that GBM9 cells undergo differentiation in-vivo. In contrast the vast majority of serum grown X12 cells expressed GFAP and vimentin at the earliest times examined post transplant. Both cell types produced tumors in the zebrafish brain containing Sox2-positive cells indicative of neural stem cells. To determine whether GBM9 tumors were responsive to currently used therapeutics, we treated transplanted larvae with either temozolomide or bortezomib and found a reduction in tumor volume in-vivo and an increase in survival supporting the use of this standardized model for drug screening.
Recent advances in the management of acromegaly
Authors: Ntali Georgia , Karavitaki Niki
Published: December 2015

Acromegaly is a rare condition of GH excess associated with significant morbidities (e.g. hypertension, glucose intolerance or diabetes mellitus, cardiac, cerebrovascular, respiratory disease and arthritis) and, when uncontrolled, high mortality. Surgery, medical treatment and radiotherapy remain our therapeutic tools. Advances in these options during the last years have offered further perspectives in the management of patients and particularly those with challenging tumours; the impact of these on the long-term morbidity and mortality remains to be assessed.
First record of Thambemyia Oldroyd (Diptera, Dolichopodidae) from Brazil, with description of a new species
Authors: Capellari Renato S.
Published: December 2015

A new species of Thambemyia Oldroyd, T. fusariae sp. nov., is described from the Brazilian State of Bahia. This is the first record of Thambemyia from the Neotropical Region, apart the Palearctic T. borealis (Takagi), introduced in USA and Peru. T. fusariae sp. nov. belongs to the subgenus Thambemyia, making the group an unusual case of Neotropical-Oriental disjunction.
HOW GLOBAL AND LOCAL ENERGY DRINK BRANDS COMPETE IN BRAZIL
Authors: Castello Branco Luiza Szczerbacki
Published: December 2015

The purpose of this paper is to analyze the marketing strategy of global and local energy drink brands in the Brazilian market. The author utilizes marketing strategy theories and competition analysis theories to support his arguments about the impact of these brands in Brazil. This paper is characterized as an exploratory study that provides a holistic framework to important strategic decisions that managers have to make. The results show that Brazil as a less developed economy tends to associate global brands as having a high quality than the local ones, so local brands are strategy adapting their products to being more similar with the well-known global brands.
COM QUANTAS ARMAS (DE FLORES E DE LOUCOS) SE FAZ UMA GUERRA?
Authors: Mascarenhas Leonardo Balbino , Toledo Dimitri Augusto da Cunha , Carrieri Alexandre Pádua
Published: December 2015

O mundo não anda nada bem, e isso não é nenhuma novidade. Por toda parte, as coisas parecem piorar cada vez mais: o consumo excessivo adoecendo todo mundo e acabando com o planeta, a exclusão social, a miséria, a violência, a intolerância.... Não precisamos ir muito longe para perceber que aquelas velhas promessas de igualdade, felicidade, progresso e liberdade deram em nada. Seja qual for a matriz teórico-epistemológica, os diagnósticos são os mesmos. Diante disso, procuramos, neste ensaio, problematizar as condições de produção de projetos políticos revolucionários nos tempos atuais e interrogar sobre as possibilidades de ruptura e transformação radical do sistema capitalista vigente. A partir das contribuições da esquizoanálise de Deleuze e Guattari, nos perguntamos: ainda existe lugar no mundo para alguma grande revolução?
INFLUÊNCIA DOS CUSTOS TRANSACIONAIS SOBRE A INOVAÇÃO: UM ESTUDO MULTICASO DE EMPRESAS INDUSTRIAIS NO BRASIL
Authors: John Elaine , Prates Rodolfo Coelho
Published: December 2015

Nas organizações, particularmente industriais, a inovação pode ser influenciada por elementos internos e externos. Os aspectos que envolvem as questões transacionais de negociações, como parcerias para inovar, devem ser melhor compreendidos, pois, muitas vezes, determinam a opção da empresa em gerar inovações ou adquirir do mercado. Nesse sentido, o objetivo desta pesquisa é analisar como os custos de transação interferem no grau de abertura do processo de inovação. A metodologia utilizada foi qualitativa, por meio da análise do conteúdo de entrevistas semiestruturadas em empresas de máquina para móveis e de máquinas e implementos agrícolas, e de implantodontia. Os resultados apontaram fatores contraditórios quando os sistemas inovativos nacionais foram analisados, e também falta de diálogo e morosidade nas parcerias formadas por institutos de pesquisa e universidades brasileiras, e deficiência na cadeia produtiva nacional.
POLÍTICA ENERGÉTICA E FONTES ALTERNATIVAS NO BRASIL
Authors: Lopes Lucca Vichr
Published: December 2015

O debate acerca da construção de grandes usinas hidrelétricas tem se intensificado com o notório caso de Belo Monte. A despeito dos impactos socioambientais causados por essas usinas, o atual modelo de expansão do setor baseado na hidreletricidade – que responde por três quartos da capacidade instalada – pode incorrer em sérios agravantes à economia (a exemplo do apagão ocorrido em 2001). Nesse sentido, as fontes alternativas de energia elétrica surgem como uma opção benéfica para o caso brasileiro, uma vez que promovem a “limpeza” da matriz elétrica, diversificam o leque das fontes energéticas e expandem a base tecnológica nacional. Contudo, o caráter incipiente dessas tecnologias pode constituir sérios entraves para o investimento privado. Nesse caso, como uma questão de segurança energética, a intervenção governamental deve ocorrer no sentido de alavancar as bases de uma indústria independente. No Brasil, as fontes alternativas tiveram um significativo avanço em sua capacidade instalada na década de 2000. Assim, este trabalho busca trazer à tona algumas das principais possibilidades de atuação em política energética e o modo como estas amparam as fontes alternativas no país.
O MICROCRÉDITO COMO FOMENTADOR DE UMA INFRAESTRUTURA COMERCIAL VOLTADA PARA A BASE DA PIRÂMIDE: O CASO DO PROGRAMA EMPREENDER BANANEIRAS
Authors: Moura Elton , Machado André Gustavo Carvalho , Bispo Marcelo de Souza
Published: December 2015

Este artigo tem o objetivo de analisar como o Programa Empreender Bananeiras contribui para o desenvolvimento de uma infraestrutura comercial voltada para o atendimento à base da pirâmide no município paraibano de Bananeiras. A estratégia de pesquisa utilizada foi o estudo de caso. Para a coleta dos dados, foram realizadas entrevistas com três representantes da organização e cinco beneficiários do Programa, bem como análise de documentos e observação direta. Quanto aos resultados, foi identificado que o Programa Empreender Bananeiras, uma inovação social para o município de Bananeiras, atua como fomentador de uma infraestrutura comercial voltada para o atendimento à base da pirâmide. Contudo, faz-se necessária a atuação de outros atores que possibilitem ações conjuntas e que desenvolvam os elementos necessários para o atendimento a essa camada da população.
Singin’ Over Rainbows: The incongruent film song and extra-filmic reception
Authors: Ireland David
Published: December 2015

Empirical research suggests that incongruent or mismatched film-music combinations can result in separate perceptual encoding of auditory and visual information, which draws attention to the components that comprise a scene. These processes help to explain the often memorable qualities of such filmic moments, which can create interpretations that may influence the resulting reception and use of the music. Examples often cited as incongruent include the use of seemingly ironic popular songs to accompany depictions of violence. Through analysis of such quotation of ‘Singin’ in the Rain’ and ‘Over the Rainbow’, this article discusses why popular song can be particularly effective in the construction of such moments. The benefits of conceptualizing these moments as incongruent, and in approaching this term from a psycho-semiotic perspective and drawing particular attention to notions of signification and intertextuality, allows further speculation about the impact of such moments on the afterlife of the quoted song.
The reality paradox: Authenticity, fidelity and the real in Battlefield 4
Authors: Stevens Richard , Raybould Dave
Published: December 2015

This article examines how the ‘Battlefield’ (EA Games) series of games generates authenticity in its soundtrack both through a meticulous approach to modelling the physical world and through the appropriation of audio characteristics from our, typically mediated, experience of conflict. It goes on to examine how we might reconcile such ‘authentic’ audio with the more ludic features of the soundtrack, required to support gameplay, that are typically presented as inauthentic. The absence of these sounds during narrative-based sequences and the acceptance of them without negative impact on immersion during gameplay implies that these inauthentic sounds appear not to disrupt the immersive qualities of the ‘authentic’ but only when clearly positioned as ego-ludic (heard only by the player, non-spatialized and synthetic in quality) and only within the context of challenge-based sequences of the game.
‘From Russia with Fun!’: Tetris, Korobeiniki and the ludic Soviet
Authors: Plank-Blasko Dana
Published: December 2015

2014 marks the 30th anniversary of Alexei Pajitnov’s puzzle game Tetris. The simple, addictive interface created an instant sensation upon its 1989 US release. The anniversary thus represents a convenient occasion to reexamine this 8-bit classic, now a vaunted member of the ludic canon.

Reflecting anxieties about what lay behind the Iron Curtain, video games of the 1980s tended to represent Soviets as vodka-addled adversaries. Tetris was the first to present Soviet elements in a more positive light, illuminating changing US attitudes at the end of the Cold War. Once western game developers obtained marketing licenses, they emphasized the game’s origins with red packaging, images of the Kremlin, and the hammer and sickle. Russian musical selections added geographical specificity and commercial interest. The Soviet elements drew gamers’ attention, and the game’s addictive nature created habitual – even compulsive – players. Tetris afforded gamers a metaphorical connection to previously forbidden, exotic territory. The construction of a new ludic Soviet sets Tetris apart from other games of this era. By exploring Tetris’s historical narrative in a context of more hostile representations, we craft a new understanding of the game’s role in constructing a new cultural discourse situated at an important moment in US history.
APPrender a leer y escribir: aplicaciones para el aprendizaje de la lectoescritura
Authors: Gómez-Díaz Raquel , García-Rodríguez Araceli , Cordón-García José Antonio
Published: December 2015

El aumento de las tabletas y de las aplicaciones educativas destinadas al público infantil hace necesario, además de analizar las ventajas e inconvenientes de su utilización en el aula, tener un mayor conocimiento sobre las propias aplicaciones, sus características, modelos de negocio, etc. El artículo se centra en las apps destinadas al aprendizaje de la lectoescritura, y ofrece, además de una tipología de las mismas, y una selección de algunas de ellas. Finalmente se incluye un listado de fuentes que ayudará a los maestros en la tarea de selección de las aplicaciones más adecuadas para las necesidades de los alumnos.
Reutilización de datos abiertos en el aprendizaje de diseño de bases de datos a través de proyectos
Authors: Mazón Jose-Norberto , Lloret Elena , Gómez Eva , Aguilar Antonia , Mingot Iván , Pérez Ernesto , Quereda Luisa
Published: December 2015

En este artículo se describe una metodología innovadora basada en el uso de datos abiertos para el aprendizaje, a través de proyectos, de una asignatura de diseño de bases de datos en un grado universitario. Esta metodología se aplica en un caso de estudio: la experiencia docente en el grupo de Alto Rendimiento Académico (ARA) de la asignatura “Diseño de Base de Datos” del Grado en Ingeniería Informática de la Universidad de Alicante en los cursos 2012/2013, 2013/2014 y 2014/2015. La filosofía de datos abiertos permite que estén a disposición del alumnado una ingente cantidad de datos, listos para su reutilización y explotación. En nuestra experiencia docente, el alumnado propone un escenario original donde diferentes datos abiertos puedan reutilizarse para una finalidad y utilidad concreta. Luego, se propone diseñar una base de datos que permita la gestión de estos datos en el escenario propuesto. El uso de datos abiertos en la asignatura ha posibilitado inculcar en el alumnado una actitud creativa y emprendedora, a la vez que se fomenta el aprendizaje autónomo y permanente (lifelong learning). Las encuestas realizadas al alumnado al final de cada curso académico han demostrado que el uso de datos abiertos integrados en metodologías de aprendizaje basado en proyectos hace que los estudiantes tengan más motivación a la hora de afrontar la asignatura, y que éstos valoren de forma muy positiva el uso de datos reales en asignaturas de este tipo.
Análisis de la relación entre la autoeficacia interpersonal del profesorado y sus niveles de burnout
Authors: García-Ros Rafael , Fuentes María C. , Fernández Basilio
Published: December 2015

Introducción. Este trabajo se centra en la evaluación y en el análisis de la capacidad predictiva de la autoeficacia interpersonal del profesorado sobre sus niveles de burnout. Se destaca la utilidad del estudio, dada la ausencia en nuestro contexto de instrumentos de evaluación sobre este constructo psicoeducativo, así como el notable impacto de la percepción de nivel de apoyo social y del mantenimiento de relaciones satisfactorias y de ayuda en el trabajo sobre el estrés docente.Método. En el estudio participan 103 profesores de distintos niveles del sistema educativo es-pañol (55 mujeres, 48 hombres, rango de edad: 24-56), a los que se aplicó una adaptación del Teacher Interpersonal Self-Efficacy Scale –TISES- y la versión española del Maslach Burnout Inventory for Teachers, junto a un cuestionario elaborado ad-hoc que recoge distintas variables sociopersonales del profesorado (sexo, años de experiencia docente y nivel formativo). La validez factorial de la adaptación española del TISES se evalúa a través de un análisis factorial confirmatorio –AFC-, mientras que su validez predictiva e incremental se evalúa a través de dive-sos análisis de regresión jerárquica múltiple.Resultados. Se confirma la estructura original del TISES de tres factores oblícuos (percepción de autoeficacia en la gestión del aula, en la obtención de apoyo de compañeros y en la obtenición de apoyo del equipo directivo del centro). Las tres subescalas de autoeficacia muestran niveles de consistencia interna satisfactorios y se relacionan de forma significativa con las dimensiones del burnout -especialmente la percepción de autoeficia en la gestión del aula-, constatando su validez predictiva e incremental sobre los niveles de burnout del profesorado.Discusión y Conclusión. Se confirma la relación de la percepción de autoeficacia interpersonal del profesorado con sus niveles de burnout, destacando la adecuación y utilidad de la adaptación del TISES. Se discuten los resultados, enfatizando la importancia de promover el desarrollo de la autoeficacia como factor preventivo del burnout, ya sea a través de la mejora de las habilidades instruccionales y de gestión del aula del profesorado, como de la potenciación de sus habilidades de trabajo en equipo y coordinación.
One-step ‘change’ and ‘compare’ word problems: Focusing on eye-movements
Authors: Moutsios-Rentzos Andreas , Stamatis Panagiotis J.
Published: December 2015

Introduction. In this study, we focus on the relationship between the students’ mathematical thinking and their non-mechanically identified eye-movements with the purpose to gain deeper understanding about the students’ reasoning processes and to investigate the feasibility of incorporating eye-movement information in everyday pedagogy.Method. This is a quantitative study. Thirty-eight (N=38) Grade 1 (6 years old) students were verbally presented with six word arithmetic problem: three problems of ‘change’ and three problems of ‘comparison’. The problems were chosen to be within the students’ mathematical abilities.Results. The findings of this study appeared to validate the non-mechanical data collection technique. Furthermore, differentiations were found in the students’ rightwards eye-movements (suggesting the activity of the left hemisphere) and the eye-movements spread (suggesting the activity of both hemispheres) in line with the literature. The more challenging problems were found to be linked with a wider spread of eye-movements and to be more time consuming. Moreover, though boys appeared to be faster than the girls in the easier tasks, no statistical differences were found in the more challenging tasks.Discussion. The adopted ‘softer’ technique was sensitive enough to be in accordance with the existing literature and at the same time helped in gaining deeper understanding in the students’ reasoning about ‘change’ and ‘compare’ problems. For example, the reported gender differences –in line with broader research evidence from education and neurophysiology– are hypothesised to indicate of qualitatively different thinking processes involved, which may be related to different gender-related thinking dispositions. Consequently, it is posited that the adopted technique was is in line with the relevant research evidence, offering at the same time insight in the complex processes involved, thus allowing for further research to be conducted in order to investigate the pedagogical benefits of the incorporation of such ‘softer ‘eye-movement identification techniques in everyday pedagogical practices.
Vulnerabilidade e ato infracional: o noVo léxico judicial para a legitimação do encarceramento de adolescentes no brasil
Authors: De Nardin Budó Marília
Published: December 2015

A relação estabelecida entre pobreza e criminalidade é uma das leituras mais comuns no tema da violência no Brasil. Na esfera da infância e da juventude, essa concepção está ainda mais enraizada, pois o adolescente pobre é compreendido sob a ótica tutelar: de vítima da sociedade a vitimizador. Este trabalho busca problematizar essa perspectiva diante de duas rupturas de paradigma: a que funda a criminologia crítica e trata o tema seg-undo uma leitura macroestrutural da criminalização da pobreza; e a que funda a doutrina da proteção integral na área da infância e juventude, rompendo com a perspectiva tutelar. A partir desse arcabouço teórico, e a partir do método dialético, a análise de conteúdo realizada em acórdãos do Superior Tribunal de Justiça permite verificar que o sistema da infância e juventude mantém brechas menoristas e antidemocráticas, fazendo com que os ado-lescentes sejam compreendidos sob a chave da periculosidade, disfarçada de vulnerabilidade.
A JURISDIÇÃO CONSTITUCIONAL NO SÉCULO XXI ENTRE PROCESSO E SUBSTÂNCIA: UM OLHAR SOBRE A EXPERIÊNCIA AMERICANA
Authors: Merlin Clève Clèmerson , Meneses Lorenzetto Bruno
Published: December 2015

O presente artigo procura analisar as mudanças es-truturais ocorridas na jurisdição constitucional, apresentando os argumentos a respeito de sua justificação e como o controle de constitucionalidade passou a refletir na organização de toda a comunidade política. Assim, são discutidos os seguintes temas: i) a justificação do controle de constitucionalidade sob a perspectiva procedimentalista; ii) as críticas tecidas ao procedimentalismo; e iii) como tal debate pode contribuir para a adequada compreen-são do papel da jurisdição constitucional no Século XXI.
A DIMENSÃO SOCIOAMBIENTAL DA PROPRIEDADE NA ORDEM ECONÔMICA BRASILEIRA
Authors: Pompeu Gina Vidal Marcílio , Pinheiro Freitas Ana Carla
Published: December 2015

Por meio do presente estudo, aborda-se a inserção da dimensão socioambiental da propriedade na ordem econômica brasileira. A evolução do Instituto da Propriedade e as primeiras limitações atinentes à sua função social no ordenamento jurídico nacional são analisadas. Ressalta-se que, a partir da Constituição de 1988, além de mera limitação, a dimensão socioambiental da propriedade configura diretriz que deve atravessar toda decisão que envolva o Instituto da Propriedade, seja na esfera política ou jurisdicional. A fundamentação legal reside nos artigos 170 e 225 da Constituição e no artigo 1228 do Código Civil. A doutrinária re-pousa nos ditames da dignidade da pessoa humana e do desen-volvimento sustentável, paradigmas adotados pelo ordenamento jurídico. Verifica-se que embasam as decisões dos tribunais supe-riores a conciliação entre desenvolvimento econômico e proteção socioambiental. Aplica-se o princípio da proporcionalidade, na justa medida exigida diante do caso concreto. Adotou-se para a elaboração do artigo a pesquisa bibliográfica, doutrinária e juris-prudencial.
Motivating Sales Reps for Innovation Selling in Different Cultures
Authors: Hohenberg Sebastian , Homburg Christian
Published: December 2015

Innovation commercialization, an important managerial challenge, depends heavily on the sales force for its success. However, little empirical research has examined how firms should direct sales reps in this task in a global, multicultural context. Drawing on self-determination theory, this study investigates how to motivate sales reps for innovation selling in different cultures with various financial and nonfinancial steering instruments. The authors collected data in two waves from sales reps in 38 countries on four continents, making this study one of the largest international investigations in sales research. Results reveal that steering instruments should correspond closely with reps’ national culture in terms of power distance, individualism, uncertainty avoidance, and long-term orientation. For example, findings show that whereas individualism strengthens the positive relationship between variable compensation for innovation-sales results and financial innovation performance through innovation-selling motivation, power distance and uncertainty avoidance weaken this relationship. Results also reveal that long-term orientation strengthens the positive relationship between supervisor appreciation for innovation-sales results and financial innovation performance through innovation-selling motivation.
An Empirical Examination of the FDAAA-Mandated Toll-Free Statement for Consumer Reporting of Side Effects in Direct-to-Consumer Television Advertisements
Authors: Aikin Kathryn J. , O'Donoghue Amie C. , Squire Claudia M. , Sullivan Helen W. , Betts Kevin R.
Published: December 2015

This research investigates how the inclusion of the “toll-free statement” (a message about a toll-free number by which consumers can report drug side effects to the U. S. Food and Drug Administration) in direct-to-consumer (DTC) television advertisements for prescription drugs affects consumers’ comprehension of product risks and benefits, as well as their comprehension and memory of the toll-free statement. Participants viewed one of nine mock television advertisements across which elements of the toll-free statement varied. Presenting the statement in both text and audio resulted in better processing of the statement than text-only presentations. When the statement was shown in text alone, presenting it during the entire advertisement or after the statement of risks resulted in better processing than a placement before the risk information. The placement, duration, and prominence of the statement did not affect risk or benefit comprehension. These findings suggest that the toll-free statement can be added to DTC television advertisements without significantly affecting risk and benefit comprehension and that certain presentations are preferable for communicating the statement. The appropriate inclusion of the toll-free statement in DTC television advertisements may increase the visibility of the adverse event reporting system, without cost to the understanding of benefits or risks.
Activating Consumers for Better Service Coproduction outcomes through Eustress: The Interplay of Firm-Assigned Workload, Service Literacy, and Organizational Support
Authors: Mende Martin , Scott Maura L. , Bitner Mary Jo , Ostrom Amy L.
Published: December 2015

Companies are allocating increasing coproduction workloads to consumers. Ironically, many consumers may be ill-equipped to coproduce, as indicated by widespread low service literacy (e.g., financial literacy, medical literacy). This research examines how consumers, particularly those low in service literacy, respond to varying levels of firm-assigned coproduction workload. Five studies, including a hospital field experiment, reveal three findings. First, service literacy plays a moderating role, such that higher (vs. lower) levels of coproduction workload improve service outcomes (e.g., compliance intentions), particularly for consumers with low service literacy. Second, coproduction eustress is a crucial mediator, such that positive service outcomes result from consumers appraising coproduction tasks as positive and meaningful challenges. In turn, eustress is elicited by consumers’ belief that they are collaborating with the provider to achieve a shared goal. Third, offering organizational support to consumers might mitigate the beneficial effects of coproduction eustress because it can trigger reactance. This research can help policy makers and managers in finding new ways to activate consumers, particularly those low in service literacy, as coproducers for better service outcomes.
𝒜$\mathcal{A}$-quasiconvexity at the boundary and weak lower semicontinuity of integral functionals
Authors: Krämer Jan , Krömer Stefan , Kružík Martin , Pathó Gabriel
Published: December 2015

We state necessary and sufficient conditions for weak lower semicontinuity of integral functionals of the form${u\mapsto\int_{\Omega}h(x,u(x))\,\mathrm{d}x}$, wherehis continuous and possesses a positivelyp-homogeneous recession function,${p>1}$, and${u\in L^{p}(\Omega;\mathbb{R}^{m})}$lives in the kernel of a constant-rank first-order differential operator${\mathcal{A}}$which admits an extension property. In the special case${\mathcal{A}=\mathrm{curl}}$, apart from the quasiconvexity of the integrand, the recession function’s quasiconvexity at the boundary in the sense of Ball and Marsden is known to play a crucial role. Our newly defined notions of${\mathcal{A}}$-quasiconvexity at the boundary, generalize this result. Moreover, we give an equivalent condition for the weak lower semicontinuity of the above functional along sequences weakly converging in${L^{p}(\Omega;\mathbb{R}^{m})}$and approaching the kernel of${\mathcal{A}}$even if${\mathcal{A}}$does not have the extension property.
The Riesz–Herz equivalence for capacitary maximal functions on metric measure spaces
Authors: Silvestre Pilar
Published: December 2015

We prove a Riesz–Herz estimate for the maximal function
Imagined Religious Communities and the “Culture of Bible-Readers”: Hinduism’s Challenge to European Religious Studies
Authors: Helton Christopher Jason
Published: December 2015

This paper will discuss the challenges posed by modern conceptions of Hinduism - in particular Heinrich von Stietencron’s conception of a “collection of religions” and Romila Thapar’s application of Benedict Anderson’s theory of “imagined communities” to Hinduism-to the European style of religious studies, particularly at the undergraduate level.
The Polish Ethnographic Atlas: Research Achievements and Prospects
Authors: Pieńczak Agnieszka
Published: December 2015

In 1998, the source materials of the Polish Ethnographic Atlas - collected over many decades with the participation of the Institute of History of Material Culture (a unit of the Polish Academy of Sciences) and several leading ethnological centres - were moved to the Cieszyn Branch of the University of Silesia (currently the Faculty of Ethnology and Education). It was then that Z. Kłodnicki, the editor of the PEA, came up with the idea to continue and finish the atlas studies. However, the work on fulfilling the PEA, the biggest project in the history of Polish ethnology, is still going on.

Nowadays, the materials of the Polish Ethnographic Atlas constitute a precious, unique in the national scale, documentary base. For several years, a lively cooperation has taken place between the PEA staff (representing the Faculty of Ethnology and Education of the University of Silesia) and various cultural institutions, government and non-government organizations. The discussed projects are usually aimed at the preservation and protection of the cultural heritage of the Polish village as well as the broadly related promotion actions for activating local communities.

The workers of the Polish Ethnographic Atlas since 2014 have been also implementing the Ministry grant entitled The Polish Ethnographic Atlas - scientific elaboration, electronic database, publication of the sources in the Internet, stage I (scientific supervision: Ph.D. Agnieszka Pieńczak). What is an integral assumption of the discussed project is the scientific elaboration of three electronic catalogues, presenting the PEA resources: 1) field photographs (1955-1971) 2) the questionnaires concerning folk collecting (1948-1952), 3. the published maps (1958-2013). These materials have been selected due to their documentary value. The undertaking has brought about some measurable effects, mostly the special digital platform www.archiwumpae.us.edu.pl. This material database of ethnographic data might become the basis for designing various non-material activities aimed at preserving the cultural heritage of the Polish village.
Complexity Ingredients Required For Entrepreneurial Success
Authors: McKelvey Bill
Published: December 2015

This “comment” begins with a summary of the various complexity concepts (ingredients) that relate to the creation and development of effective startup companies. No single complexity concept is sufficient to create an effective entrepreneurial startup, but a random mix of organizational components and behaviors is also ineffective. As the competitive environments of entrepreneurial firms change, they also need to continually change their mix of complexity ingredients to remain competitive. In moving from biology to
Trust in Cloud Computing: Pro and Contra from the User’s Point of View
Authors: Backhaus Nils , Thüring Manfred
Published: December 2015

Cloud computing seems to solve many problems of conventional data processing. Due to the flexibility, mobility, and cost savings, users can customize their computing power more efficiently. However, there are also disadvantages. Users in part lose control over their data, e. g. they do not know where, how and under what circumstances their data is stored and processed, or who has access to their data. We describe the benefits and risks of cloud services and their impact on the acceptance and use on the (end-) users. We conclude that trust in cloud computing is a key factor that mitigates risks and can make the use of cloud computing services more effective.
The Power of Freeletics
Authors: Franze Christina , Funk Lena , Strasser Lisa , Diefenbach Sarah
Published: December 2015

The present article explores potential success factors of sports mobile apps by the example of Freeletics. Our analysis followed a two-sided approach: On the one hand, Freeletics is discussed in light of existing research and theory, with a focus on psychology, motivation theory and behavior change. On the other hand, we present a survey among 113 Freeletics users with interesting implications for app design. The analysis reveals that Freeletics actually makes use of a number of aspects and psychological mechanisms that previous research identified as important for physical activity apps and behavior change in general. Altogether, the present case highlights the importance to integrate psychological knowledge in technology design.
Hacking the hospital environment: young adults designing youth-friendly hospital rooms together with young people with cancer experiences
Authors: Boisen Kirsten A. , Boisen Anne , Thomsen Stine Legarth , Matthiesen Simon Meggers , Hjerming Maiken , Hertz Pernille Grarup
Published: December 2015

Background:

There is a need for youth-friendly hospital environments as the ward environment may affect both patient satisfaction and health outcomes.

Objective:

To involve young people in designing youth-friendly ward environment.

Methods:

We arranged a design competition lasting 42 h (Hackathon). Students in architecture, design, engineering, communication and anthropology participated (27 young adults) – forming eight groups. Adolescents and young adults (AYA) with current or former cancer experience participated as sparring partners. We provided workspace and food during the weekend. The groups presented their products to a jury and relevant stakeholders.

Results:

The groups created eight unique design concepts. The young designers were extremely flexible listening to ideas and experiences from the young patients, which led to common features including individual and flexible design, privacy in two-bed wardrooms and social contact with other hospitalized AYA. The winning project included an integrated concept for both wardrooms and the AYA day room, including logos and names for the rooms and an ‘energy wall’ in the day room.

Conclusion:

A hackathon event was an effective mode of youth participation. The design concepts and ideas were in line with current evidence regarding pleasing hospital environment and youth-friendly inpatient facilities and may be applicable to other young patients.
Expression of the Prophenoloxidase Gene and Phenoloxidase Activity, During the Development of Apis Mellifera Brood Infected with Varroa Destructor
Authors: Zaobidna Ewa A. , Żółtowska Krystyna , Łopieńska-Biernat Elżbieta
Published: December 2015

The pathogenesis of varroasis has not been fully explained despite intensive research. Earlier studies suggested that parasitic infections caused by Varroa destructor mites were accompanied by immunosuppression in the host organism. The objective of this study was to analyse the influence of varroasis on one of the immune pathway in Apis mellifera measured by the expression of the prophenoloxidase (proPO) gene and the enzymatic activity of this gene’s product, phenoloxidase (EC 1.14.18.1). An evaluation was done of five developmental stages of honey bee workers and drones. The relative expression of proPO decreased in infected individuals. The only exceptions were worker prepupae (PP) and drone pupae with brown eyes and dark brown thorax (P5) where propo gene expression was 1.8-fold and 1.5-fold higher, respectively, than in the control. Phenoloxidase (PO) activity was 2.8-fold higher in infected pp workers and 2-fold higher in p5 drones in comparison with uninfected bees. Phenoloxidase activity was reduced in the remaining developmental stages of infected workers and drones. The relative expression of proPO was positively correlated with the relative PO activity in both workers (r = 0.988) and drones (r = 0.996). The results of the study indicate that V. destructor significantly influences the phenoloxidase-dependent immune pathway in honey bees.
Seaport efficiency and productivity based on Data Envelopment Analysis and Malmquist Productivity Index
Authors: Baran Joanna , Górecka Aleksandra
Published: December 2015

Seaport efficiency and productivity are the critical factors for handling of goods in the international supply chains and plays an important role in trade exchange with other countries. It is important to evaluate efficiency and productivity of seaports to reflect their status and reveal their position in competitive environment. The main purpose of this article is to use Data Envelopment Analysis and Malmquist Productivity Index to measure the technical efficiency and total factor productivity of container ports. DEA analysis enables one to assess how efficiently a seaports uses the available inputs to generate a set of outputs relative to other units in the data set. This article presents the use CCR and BCC DEA model, to determine overall technical efficiency, pure technical efficiency and scale efficiency of container ports. The analysis gives a possibility to create a efficiency ranking of seaports. The study also applies the Malmquist Productivity Index (MPI), which was used to analyze changes in seaports productivity. The study indicated that technological progress had a greater impact on the change in productivity of container ports than changes in technical efficiency.