bluuebunny/crossref_metadata_2025 huggingface dataset:
Die Zerstörung des Ichs
Authors: Heimann Andreas
Published: September 2015

Im Zentrum dieser Neuinterpretation von Jelineks Œuvre steht die Figur des Untoten. Andreas Heimann analysiert die ästhetischen Stilmittel in Jelineks Werk mittels postmoderner Theorien, etwa von Lacan und Deleuze, und stellt sie hierfür in die Tradition von Autoren wie Goethe, Kafka und Baudelaire. So eröffnet sich ein neuer, erweiterter Werkzugang, der den Fokus nicht allein auf die gesellschaftspolitischen Implikationen richtet, sondern nach dem Leitmotiv des untoten Subjekts ebenso fragt wie nach der Autonomie des Subjekts und den Mechanismen unserer Realität.
Caso autóctono de micetoma por Actino- madura madurae en Paraná (Entre Ríos, Argentina): reporte del caso y revisión bibliográfica de la casuística argentina
Authors: Dudiuk C. , Theill L. , Moyano S. , Barbagelata M.S. , Leonardelli F. , Macedo D. , Latorre Rapela M.G. , Acosta A. , Gamarra S. , García–Effron G.
Published: September 2015

. . . . . . . . . . . . .
Uncovering Embedded Face Threat Mitigation in Landscape Architecture Critique Feedback
Authors: Housley Gaffney Amy L.
Published: September 2015

Receiving public feedback on academic work may threaten students’ face, particularly when such feedback is critical. One way that feedback may be cushioned is through face-threat mitigation techniques. I analyzed the use of such techniques in the feedback given by faculty and professionals to landscape architecture students as preparation for integrating communication instruction into these courses. This analysis revealed that informal language was the most prevalent technique employed by both faculty and professionals. Findings also indicated that faculty offered more direct advice to students than professionals, potentially fulfilling students’ desires for relevant feedback. The marked differences between faculty and professionals patterns point to different interpretations of and goals in providing feedback. The analysis concludes with a discussion of this study’s implications for future research on feedback.
Reliable and inexpensive expression of large, tagged, exogenous proteins in murine bone marrow-derived macrophages using a second generation lentiviral system
Authors: R. Miller Matthew , D. Blystone Scott
Published: September 2015

Over the past two decades, researchers have struggled to efficiently express foreign DNA in primary macrophages, impeding research progress. The applications of lipofection, electroporation, microinjection, and viral-mediated transfer typically result in disruptions in macrophage differentiation and function, low expression levels of exogenous proteins, limited efficiency and high cell mortality. In this report, after extensive optimization, we present a method of expressing large tagged proteins at high efficiency, consistency, and low cost using lentiviral infection. This method utilizes laboratory-propagated second generation plasmids to produce efficient virus that can be stored for later use. The expression of proteins up to 150 kDa in size is achieved in 30–70% of cells while maintaining normal macrophage differentiation and morphology as determined by fluorescence microscopy and Western blot analysis. This manuscript delineates the reagents and methods used to produce lentivirus to express exogenous DNA in murine bone marrow-derived macrophages sufficient for single cell microscopy as well as functional assays requiring large numbers of murine bone marrow-derived macrophages.
Influência da Convecção Mista sobre a Otimização Geométrica de um Arranjo Triangular de Cilindros em Escoamentos Laminares
Authors: Barros Gabriel Moraes , Do Carmo Diego Mion , Cemin Rafael , Galarça Marcelo Moraes , Isoldi Liércio André , Rocha Luiz Alberto Oliveira , Dos Santos Elizaldo Domingues
Published: September 2015

Este estudo numérico consiste em avaliar a forma geométrica de um arranjo triangular de cilindros submetidos a escoamentos transientes, bi-dimensionais, incompressíveis, laminares e com convecção mista por meios do Constructal Design. As simulações foram realizadas para escoamentos com números de Reynolds e Prandtl, de 100 e 0,71, respectivamente, avaliando-se três diferentes números de Richardson: Ri = 0,1; 1,0; e 10,0. As equações de conservação de massa, quantidade de movimento e energia foram resolvidas com o uso do método de volumes finitos (FVM – do inglês: Finite Volume Method). A área ocupada pelos cilindros é uma restrição geométrica do problema. O principal objetivo é avaliar a influência do Ri no efeito da razão ST/D (passo transversal sobre o diâmetro) sobre o coeficiente de arrasto (CD) e o número de Nusselt (NuD) entre os cilindros e o escoamento circundante, bem como obter as geometrias ótimas do problema multiobjetivo. Em todos os casos estudados a razão SL/D (passo longitudinal sobre o diâmetro) foi mantida fixa, SL/D = 1,5. Foi avaliado que a variação do mecanismo motriz do escoamento (causado pela variação do número de Richardson) não somente afetou as magnitudes de CD e NuD, mas também alterou o comportamento das camadas limite fluidodinâmica e térmica conduzindo a alterações no efeito da razão ST/D sobre CD e NuD.
Modelo de Trocas Sociais entre Tríades de Agentes utilizando confiança, reputação e dependência social.
Authors: León Rojas Yunevda Ekaterina , Dimuro Graçaliz , Adamatti Diana
Published: September 2015

Esse artigo propõe um cenário em que os agentes interagem realizando trocas de serviços que, após serem realizadas, são avaliadas pelos participantes, gerando os conceitos de valores dessas trocas. A teoria desenvolvida por Piaget propõe um modelo de troca social entre dois agentes. Nesse trabalho, se propõe a adição de um novo agente, denominado agente intermediário, que em uma mesma troca atua como fornecedor e recebedor de um serviço. Dessa forma, busca-se complementar o modelo de Piaget, em que as trocas em relações sociais são realizadas entre dois agentes.

Para manter a continuidade do processo de trocas sociais é necessário garantir a existência de trocas futuras e a correta escolha do parceiro. Para tal, precisa-se conhecer a informação dos valores de trocas ocorridas durante o processo, a informação dos agentes com respeito à reputação de cada um dos participantes e o grau de dependência social entre eles. Esses critérios são utilizados para orientar a decisão dos agentes sobre seus parceiros, se convertendo no foco para as análises do processo de transferência de confiança entre os agentes. Pela mesma razão, o conhecimento do grau de confiança e reputação envolvido no processo das trocas promove relações de dependência mais seguras entre os agentes e credibilidade a eles, favorecendo a possibilidade de futuras interações.
Desenvolvimento de Habilidades de Lógica em Estudantes de Ensino Médio: Uma Proposta Fundamentada na Neurociência
Authors: Bastos Narúsci Santos , Adamatti Diana Francisca , Carvalho Fernanda Hammes
Published: September 2015

Este artigo apresenta a proposta de treinamento da habilidade lógica em estudantes de ensino médio e sua análise baseada na neurociências. O foco da pesquisa está em verificar diferenças de gênero, ou seja, se as habilidades para as áreas de ciências exatas e engenharias podem ser ampliadas em meninas, e como essas atividades podem ser validadas a nível fisiológico, segundo a plasticidade
cerebral.
Viabilidade do uso de turbinas hidrocinéticas na Plataforma Continental Sul-Sudeste Brasileira
Authors: Kirinus Eduardo De Paula , Marques Wiliam Correa
Published: September 2015

Devido à grande atenção dada ao desenvolvimento de novas fontes de captação energéticas, houve também, um aumento na diversidade de tecnologias existentes para a obtenção energética de forma limpa e sustentável. Na Plataforma Continental Sul-Sudeste do Brasil, foram realizadas simulações hidrodinâmicas com o sistema de modelagem numérica TELEMAC3D, juntamente com um módulo de conversão de energia, para a simulação de turbinas hidrocinéticas que vem sendo desenvolvido na FURG. Dentre os locais estudados, a região de Santa Catarina apresenta as melhores características de intensidade de corrente e batimetria para a conversão de energia das correntes. Os resultados das simulações demonstraram que essa região apresenta valores integrados de potência podem alcançar 4,71 MW durante o período analisado de 120 dias, com média de conversão de aproximadamente 45 kW/Dia.

 
Constructal Design aplicado à otimização geométrica de um material de alta condutividade térmica em forma de "T"
Authors: Rodrigues Michel Kepes , Goulart Marcelo Moraes , Helbig Daniel , Magalhães Glauciléia M. C. , Junior Ivoni Calos Acunha , Rocha Luiz Alberto Oliveira , Isoldi Liércio André , Dos Santos Elizaldo Domingues
Published: September 2015

O presente trabalho utiliza o método Constructal Design no estudo numérico da configuração geométrica de um material de alta condutividade térmica em forma de "T" que minimiza a resistência ao fluxo de calor, uma vez que as áreas ocupadas pelos materiais de alta e baixa condutividade são mantidas constantes. Para a solução numérica da equação da difusão do calor foi utilizado o método de elementos finitos (FEM), mais especificamente a ferramenta PDETOOL (Partial Differential Equations Tool) do software MATLAB. O objetivo deste trabalho é a minimização da resistência térmica do sistema gerador de calor, com baixa condutividade térmica, através da inserção de uma via em formato de "T", cujo material possui alta condutividade térmica e volume constante, sendo variáveis as dimensões correspondentes ao ramos simples e bifurcados. A geometria ótima deste material foi aquela que conduziu para a menor resistência térmica. Os resultados mostram que a geometria ótima conduz a uma diminuição da temperatura máxima mínima em aproximadamente 33% em relação a uma geometria não otimizada. Finalmente, o presente trabalho mostrou que a geometria ótima é aquela que melhor distribui as imperfeições, ou seja, os pontos quentes (pontos de temperatura máxima), o que vai ao encontro do princípio Constructal da ótima distribuição das imperfeições.
Variância Intervalar das funções densidade de probabilidade com distribuições Exponencial, Pareto e Uniforme
Authors: Tortelli Lucas Mendes , Balboni Maurício Dorneles Caldeira , Finger Alice Fonseca , Loreto Aline Brum
Published: September 2015

A computação científica demanda de grande exatidão e ao se utilizar o sistema de ponto flutuante os resultados podem ser afetados por erros. Estes inviabilizam a confiabilidade nos resultados alcançados, com isto surge a necessidade da utilização da matemática intervalar. Esta cria limites que são os extremos do intervalo onde o valor real x está contido, controlando a propagação desses erros uma vez que resultados intervalares carregam consigo a segurança de sua qualidade. O cálculo da variância necessita de exatidão devido ao grande processamento de valores reais.  O presente trabalho tem como objetivo definir a variância intervalar das funções de densidade de probabilidade com distribuições Exponencial, Pareto e Uniforme a fim de obter um controle automático de erros com limites confiáveis.
Modelagem dinâmica de cabos para aplicações subaquáticas
Authors: Pouzada Thiago Avila , Gomes Sebastião Cícero Pinheiro
Published: September 2015

A modelagem dinâmica de cabos constitui tema de pesquisa de grande importância e aplicação prática na atualidade. No entanto, devido às não linearidades presentes na dinâmica de cabos, bem como à necessidade de se trabalhar com muitos graus de liberdade, desenvolver modelos dinâmicos para estes sistemas torna-se tarefa difícil. Para desenvolver modelos dinâmicos de cabos, o presente artigo utiliza o Método do Formalismo Discreto (Lumped Mass Approach), que supõe o cabo dividido em elos rígidos conectados por articulações elásticas fictícias. Os cabos foram considerados com uma das extremidades articulada a uma estrutura flutuante (navio ou plataforma), enquanto que em sua outra extremidade consideraram-se dois casos: uma carga terminal livre; extremidade fixa a Terra. Os cabos estão submersos e o arrasto hidrodinâmico foi considerado a partir de um modelo simples, proporcional ao quadrado da velocidade. Utilizando-se o formalismo de Euler-Lagrange, foram desenvolvidos os modelos dinâmicos para cabos considerando-se dois, três e quatro elos. Uma vez obtidos estes modelos, foram realizadas simulações, as quais mostraram resultados qualitativamente de acordo com o esperado fisicamente.
Gerenciamento de semáforos e análise do impacto da dispersão de poluentes utilizando o simulador SUMO
Authors: Born Míriam Blank , Adamatti Diana Francisca , De Aguiar Marilton Sanchotene
Published: September 2015

Na atualidade, a mobilidade urbana e a qualidade do ar são assuntos de destaque, devido ao tráfego intenso de veículos e a emissão de poluentes dissipada na atmosfera. Na literatura, foi proposto um modelo de controle otimizado de semáforo utilizando Algoritmos Genéticos (AG). Estes algoritmos foram introduzidos neste contexto de controle de trânsito, buscando possíveis soluções para a problemática de semáforos nos grandes centros urbanos. A análise da dispersão de poluentes torna-se um aspecto importante de ser estudado e avaliado, para que soluções viáveis sejam implantadas visando a melhoria do tráfego urbano e da qualidade do ar. Assim, este trabalho tem como objetivo o desenvolvimento de um Algoritmo Genético (AG) capaz de auxiliar no gerenciamento de semáforos do centro da cidade de Rio Grande/RS e analisar, a partir de cenários simulados no simulador SUMO (Simulation of Urban Mobility), o impacto da dispersão de poluentes nesta área.
Estudo numérico da influência de condições de contorno na modelagem computacional de trocador de calor solo-ar
Authors: Rodrigues Michel Kepes , Souza Jeferson Avila , Vaz Joaquim , Junior Ivoni Carlos Acunha , Rocha Luiz Alberto Oliveira , Brum Ruth Da Silva , Santos Elizaldo Domingues dos , Isoldi Liércio André
Published: September 2015

O trocador de calor solo-ar (TCSA) é um dispositivo utilizado para a melhoria da condição térmica de ambientes construídos, contribuindo na diminuição no consumo de energia elétrica dos equipamentos tradicionais de condicionamento de ar. Assim, os objetivos deste trabalho são de avaliar a influência da condição de contorno térmica de fluxo prescrito nulo no potencial térmico (PT) do TCSA, que é imposta nas superfícies laterais do domínio computacional, e de estudar a efeito do tipo de condição de contorno térmica imposta na superfície inferior do domínio computacional no tempo de processamento da simulação numérica de um TCSA. Para isso, um modelo computacional, validado e verificado, desenvolvido no software FLUENT, que é baseado no Método dos Volumes Finitos (MVF), foi empregado. Os resultados mostraram que o PT das instalações de TCSA analisadas é afetado para um espaçamento horizontal, entre o duto e a parede do domínio computacional, inferior a 2,00 m. Além disso, foi observado que a utilização da condição de contorno de temperatura prescrita imposta na superfície inferior do domínio computacional contribuiu para a redução do tempo de processamento da simulação numérica em 18%, quando comparada com a utilização da condição de contorno térmica de fluxo prescrito nulo.
Strategic Delay in Global Games
Authors: Larson Nathan
Published: September 2015

We study strategic uncertainty in an investment coordination game when players have the option to delay acting. Absent the option to delay, the global games literature shows that efficient equilibrium outcomes are possible only when they are also risk dominant. In contrast, we show that when delay is not too costly, strategic uncertainty can encourage delay in such a way that efficient investment occurs whenever it is “worth waiting for.”
Chiral separation of α-cyclohexylmandelic acid enantiomers using ionic liquid/salt aqueous two-phase system
Authors: Chen Lei-Lei , Li Fen-Fang , Tan Zhi-Jian
Published: September 2015

In this paper, an ionic liquid-based aqueous two-phase system (ILATPS) was applied to the chiral separation of α-cyclohexylmandelic acid (α-CHMA) enantiomers with hydroxypropyl-β- cyclodextrin (HP-β-CD) as the chiral selector. Several influencing parameters were investigated including the types and concentration of ionic liquids, the amount of phase-forming salt, temperature, mixing time, pH, and the content of HP-β-CD. The results showed that not all ILATPS had the ability to chirally recognise the selected enantiomers and that [C
Transgranular corrosion fatigue crack growth in age-hardened Al-Zn-Mg (-Cu) alloys
Authors: Lynch Stan P. , Knop Mark , Byrnes Rohan T.
Published: September 2015

The mechanisms of transgranular corrosion fatigue in age-hardened Al-Zn-Mg (-Cu) alloys are reviewed, with an emphasis on accounting for fractographic observations. The effects of cycle frequency, solution composition, temperature, and electrode potential on crack-growth rates (and striation spacing and appearance) at intermediate to high ΔK are discussed in particular. It is concluded that corrosion fatigue, resulting in cleavage-like {100} <110> cracking with extensive slip on {111} planes intersecting crack fronts, can best be explained by an adsorption-induced dislocation emission mechanism (involving weakening of interatomic bonds at crack tips by adsorbed hydrogen). Solute hydrogen ahead of cracks appears to play little, if any, role in facilitating cleavage-like cracking, and the mechanisms based on decohesion are at odds with the locally high strains around cracks and the formation of nanovoids ahead of cracks.
On multiple Fourier coefficients of a function of the generalized Wiener class
Authors: Vyas Rajendra G.
Published: September 2015

In this paper, we estimate the order of magnitude of the double Fourier coefficients of a function of the class

(

Λ
1

,

Λ
2

)

BV

(
p

(
n
)

↑
∞
,
ϕ
)

${(\Lambda ^1,\Lambda ^2)\operatorname{BV}(p(n)\uparrow \infty ,\varphi )}$

over

[
0
,
2
π
]

2

${[0,2\pi ]^2}$

.
13C NMR spectroscopy of heterocycles: 3,5-diaryl-4-bromoisoxazoles
Authors: Yu Jiayo , Edjah Beatrice , Argueta-Gonzalez Hector , Ross Stephanie , Gaulden Patrick , Shanderson Ronald , Dave Julia , Baumstark Alfons L.
Published: September 2015

A series of 3,5-diarylisoxazoles (1–9) underwent reaction with N-bromosuccinimide in acetic acid to yield the corresponding 3.5-diaryl-4-bromoisoxazoles (1Br–9Br) in low to moderate yield. The X-ray structure of 3-(4-chlorophenyl)-5-phenyl-4-bromoisoxazole showed torsion angles of ~40° and ~36° between the 3- and 5-aryl groups and the central ring system, respectively. Molecular modeling studies predicted the 3,5-phenylisoxazole ring system to be essentially coplanar and the 3,5-diphenyl groups of the 4-bromoisoxazole derivative to be twisted with torsional angles of 50° and 37°, respectively. Carbon-13 nuclear magnetic resonance (13C NMR) data of the 3,5-diaryl-4-bromoisoxazoles were obtained in dimethyl sulfoxide-d
6 (DMSO-d
6) at 50°C. Plots of the C4 chemical shift data for isoxazoles (1–9) vs. those for 4-bromoisoxazoles (1Br–9Br) showed a good linear correlation (r
2 = 0.974) with a slope of 0.96. Substitution on the 3-aryl group had essentially no effect on the chemical shift for C4 of the 4-bromoisoxazole, whereas that on the 5-aryl group showed an excellent correlation with σ+ values. Despite the predicted torsion angle differences, distal transmission of substituent effects in the 4-bromo ring system was essentially analogous to that in the planar 3,5-diarylisoxazoles.
Synthesis and anti-proliferative activity of pyridine O-galactosides and 4-fluorobenzoyl analogues
Authors: Alneyadi Shaikha S. , Shehadi Ihsan A. , Abdou Ibrahim M.
Published: September 2015

Pyridine O-galactosides 3, 4, and 2-(4′-fluorobenzoyloxy)pyridine derivatives 5 were prepared by simple nucleophilic substitution reactions. These nucleosides were studied as anti-proliferating agents of human promyelotic leukemia (HL-60) cells. Compound 5a shows the highest anti-proliferative activity (77% at 100 μm) among the synthesized compounds.
Re-thinking professional development and accountability: towards a more educational training practice
Authors: Emmett Yvonne
Published: September 2015

In this article, I discuss the contribution of theoretical resources to the transformation in my thinking about professional development and accountability, within an action research self-study of practice as a civil servant, in the context of participation on the Doctor in Education (Leadership) programme at Dublin City University (DCU) in the period 2008-2012. It is at the intersection of these subject positions, between theory and practice, that professional development was explored through the ‘leadership problem’ of encouraging trainer colleagues to investigate the educational potential of information and communications technologies (ICT) for the development of their practice. Ultimately, this constituted a critical space for sustained dialogue between the self and the social in exploring professional subjectivity. The resources discussed supported the interrogation of social, cultural and historical conditions influencing self-understanding and narrative reasoning (Tamboukou, 2008) and movement from strategic to communicative reasoning (Habermas, 1984). It is claimed that this has significance for the development of a more educational training practice, which expresses a concern for subjectivity and agency in the face of a growing ‘performativity’ in professional life (Ball, 2003).
Life outside academia: on becoming an expert teacher-researcher
Authors: Farrell Peter
Published: September 2015

The author, a school principal with significant classroom responsibilities recounts his journey towards authenticity as an independent teacher-researcher. His career as a researcher began in the scientific-knowledge tradition and then moved into the practical-knowledge tradition. He describes how Donald Schön, the father of reflective practice, has transformed his professional life, leading him to develop a deeply thoughtful practice, one that makes use of the literature to augment, challenge, and legitimise the work he does in his school. The author delves into the messy world of the professional experiment, and the idea that professionals can, and do, act and think differently to third-person researchers. Finally, the author shares his story about how the members of a virtual community of scholars have facilitated his move from the periphery of the researching community into an authentic and valued practitioner-colleague with a personal theory of practice
Informal nature experience on the school playground
Authors: Raith Andreas
Published: September 2015

In Germany, all-day care and all-day schooling are currently increasing on a large-scale. The extended time children spend in educational institutions could potentially result in limited access to nature experience for children. On the other hand, it could equally create opportunities for informal nature experience if school playgrounds have a specific nature-oriented design. This article is written from the perspective of a primary school teacher and presents the findings of a meta-analysis which looks at the impact nature experience has on the development of children. Furthermore, the first results of a research study on green playgrounds in primary schools is discussed. The results so far seem to indicate that green school playgrounds have the potential of providing nature experience particularly for primary students
From a well-prepared teacher to an on-the-spot facilitator: a reflection on delivering an active learning course
Authors: Lee Hyowon
Published: September 2015

In this article, I describe my experience of preparing and delivering a brand new computing undergraduate course in a new university and in doing so, share how the special institutional push of the active learning pedagogy of the university changed the way I prepared and delivered the course, and ended up transforming my own view of teaching. I was faced with an unusual cohort of students who were already familiar with active learning styles in classes, were proactive, vocal, and argumentative, were not afraid of making mistakes and of challenging the authorities, were extremely articulate expressing themselves and who had worked in a project- and team-based setting throughout the programme. As such, a very different method of teaching needed to be in place, not for the purpose of improving the in-class engagement, but out of necessity. In the process of creating and running this course, I witnessed a major shift in the allocation of my time, efforts and other resources: from general to specific, from teaching to advising to observing, from elaborate preclass preparations to impromptu, in-class discussions, thus bringing all my design skills and experiences to the table.
The co-creation of a video to inspire humanitarianism: How an Educational Entrepreneurial approach inspired humanitarian workers to be mindfully innovative whilst working with technology.
Authors: Crotty Yvonne , Kilboy Laura
Published: September 2015

This paper demonstrates the value of embracing digital technology in order to effect positive change in a non-governmental (NGO) charity organisation, in this case the Irish Charity Crosscause. The outcome of the research was the creation of a charity video, Crosscause: Making a Difference, to showcase humanitarian work in Ireland and Romania with a view to inspiring others to contribute in some capacity to this cause. Video is an important medium to provide connections with a wider audience, as it gives humanitarian workers and marginalised communities an opportunity to tell their story by making a compelling and evocative case to others. Visual media not only makes connections with an audience, but can also positively challenge people to consider what is happening in the world around them.

The research process incorporated an entrepreneurial methodology - an Educational Entrepreneurial approach to action research-with four steps: Exploring, Understanding, Creating and Transforming, which is designed to guide practitioner-researchers as they embrace digital technology to resolve an identified need in a workplace context, including people in disadvantaged settings. In this research, there was an identified need for a charity video to link the giving in Ireland to the receiving in Romania, so that viewers could see the tangible effects of their contributions. A further aim of the research was to illustrate how volunteering can inspire solidarity among Irish and Romanian communities.
Transitive permutation groups with trivial four point
stabilizers
Authors: Magaard Kay , Waldecker Rebecca
Published: September 2015

In this paper we analyze the structure of transitive permutation
groups that have trivial four point stabilizers, but some nontrivial
three point stabilizer. In particular, we give a complete, detailed
classification when the group is simple or quasisimple. This paper is motivated by questions concerning the relationship between fixed points of automorphisms of Riemann surfaces and Weierstraß points and is a continuation of the authors' earlier work.
New examples of mixed Beauville groups
Authors: Fairbairn Ben , Pierro Emilio
Published: September 2015

We generalise a construction of mixed Beauville groups first given by Bauer, Catanese and Grunewald. We go on to give several examples of infinite families of characteristically simple groups that satisfy the hypotheses of our theorem and thus provide a wealth of new examples of mixed Beauville groups.
On the null space of a class of Fredholm integral equations of the first kind
Authors: Michel Volker , Orzlowski Sarah
Published: September 2015

We investigate the null space of Fredholm integral operators of the first kind with

TD:=∫ℬD(x)k(x,⋅)dx,${{TD}\mathrel{\mathop{:}}=\int_{\mathcal{B}}D(x)k(x,\cdot\,)\,\mathrm{d}x},$

whereℬ${{\mathcal{B}}}$is a ball, the integral kernel satisfies

k⁢(x,y)=∑n=0∞cn⁢|x|ln|y|n-2+q⁢Pn(q)⁢(x|x|⋅y|y|),x∈ℬ,y∈ℝq∖ℬ,${k(x,y)=\sum_{n=0}^{\infty}c_{n}\frac{|x|^{l_{n}}}{|y|^{n-2+q}}P_{n}^{(q)}% \biggl{(}\frac{x}{|x|}\cdot\frac{y}{|y|}\biggr{)},\quad x\in\mathcal{B},\,y\in% \mathbb{R}^{q}\setminus\mathcal{B}},$

where(cn)${(c_{n})}$and(ln)${(l_{n})}$are sequences with particular constraints, and thePn(q)${P_{n}^{(q)}}$are Gegenbauer polynomials. We first discuss the case of a 3-dimensional ball in detail, where thePn(3)=Pn${P_{n}^{(3)}=P_{n}}$are Legendre polynomials, and then derive generalizations for theq-dimensional ball. The discussed class includes some important tomographic inverse problems in the geosciences and in medical imaging. Amongst others, uniqueness constraints are proposed and compared. One result is that information on the radial dependence ofDis lost inT⁢D${{TD}}$. We are also able to generalize a famous result on the null space of Newton’s gravitational potential operator to theℝq${\mathbb{R}^{q}}$. Moreover, we characterize the orthonormal basis of the derived singular value decomposition ofTas eigenfunctions of a differential operator and as basis functions of a particular Sobolev space. Our results give further insight to the interconnections of magnetic field inversion on the one side and gravitational/electric field inversion on the other side.
Negative effect of the wild boar (Sus scrofa) on the population size of the wood mouse (Apodemus sylvaticus) in forest habitats of Sardinia
Authors: Amori Giovanni , Luiselli Luca , Milana Giuliano , Casula Paolo
Published: September 2015

The various activities of the wild boar (
Digitalisierung, E-Health, Telemedizin… Was ist was?
Authors: Reulke Kerstin
Published: September 2015

Die Digitalisierung der Gesellschaft beeinflusst derzeit unsere persönlichen und sozialen Lebensbereiche, die Arbeitswelt, Freizeit und Mobilität – und somit auch unser Gesundheitswesen. Schlüsselworte wie E-Health oder Telemedizin beschreiben diesen Wandlungsprozess, der durch den Einsatz moderner Informations- und Kommunikationstechnologien gekennzeichnet ist. Sowohl die genaue Begriffsdefinition als auch die Abgrenzungen zu ähnlichen Begriffen unterliegen jedoch einer gewissen Variabilität.
Rechtliche Rahmenbedingungen für ein digitalisiertes Gesundheitssystem
Authors: Dierks Christian
Published: September 2015

Es liegt nahe, im Zusammenhang mit der Digitalisierung des Gesundheitssystems Schweigepflicht, Datenschutz und Privatheit zu thematisieren. Seltener angesprochen wird jedoch, welche Hürden das Recht gegenwärtig für eine Digitalisierung aufstellt und an welchen Stellen der gesetzliche Rahmen noch ergänzungsbedürftig ist, um notwendige Datenverarbeitung überhaupt erst zu ermöglichen. Dieser Beitrag zeigt, an welchen Stellen des digitalen Gesundheitssystems rechtlicher Gestaltungsbedarf besteht.
Tablets zur Beschäftigung und Therapie von Demenzkranken – ein Fallbericht
Authors: Nordheim Johanna , Kuhlmey Adelheid , Hamm Sabine , Suhr Ralf
Published: September 2015

Es wurden Praktikabilität und Nutzen der Anwendung von Tablets in der alltäglichen Betreuung dementer Pflegeheimbewohner untersucht. Durch den Einsatz sollten deren Lebensqualität und die sozial-kommunikative Teilhabe verbessert sowie Verhaltensauffälligkeiten reduziert werden. An der qualitativen Pilotstudie nahmen 14 Bewohner eines Wohnbereichs für Demenzerkrankte eines Berliner Pflegeheims teil. Sie wurden über drei Monate wöchentlich einzeln oder in Gruppen mit dem Tablet aktiviert.
Handysucht: Neue Medien = Neue Süchte? Ein Wegweiser für Familien
Authors: See Colette
Published: September 2015

Die Digitalisierung prägt das Aufwachsen von Kindern und Jugendlichen. Eltern sind verunsichert, wie viel Handynutzung für ihr Kind noch unbedenklich ist. In den letzten Jahren hat sich die Bildschirmnutzung zu einem Dauerstreitthema in Familien entwickelt. Für etwa 30 Prozent der Eltern in Deutschland stellt die als exzessiv bewertete Computer- und Internetnutzung ein Problem dar.
On distribution of the norm of deviation of a sub-Gaussian random process in Orlicz spaces
Authors: Yamnenko Rostyslav E.
Published: September 2015

The paper is devoted to the study of sub-Gaussian random variables and stochastic processes. Recall that
along with centered Gaussian random variables
the space Sub(Ω) of sub-Gaussian random variables contains
all bounded zero-mean random variables and all zero-mean random variables whose
distribution tails decrease no slower than the tails of the distribution of a Gaussian random variable.
Here we study a square deviation of a sub-Gaussian random process from a constant and derive an upper estimate for the exponential moment
of the deviation. The obtained result allows to estimate the distribution of deviation of a sub-Gaussian random process from
some measurable function in the norm of Lp
(𝕋) and in the norm of Orlicz space.
The paper generalizes results of [Theory Probab. Math. Statist. 58 (1999), 51–66] for the norm of a sub-Gaussian random process in Orlicz space.
As an example we apply the obtained estimates to a sub-Gaussian Wiener process deviated from a linear and a square root functions.
Investigations on interface microstructure and strength properties of dissimilar tin bronze/superalloy diffusion bonded joints
Authors: Li Peng , Li Jinglong , Xiong Jiangtao , Zhang Fusheng , Liang Li
Published: September 2015

Diffusion bonding of dissimilar metals QSn4-3 and GH34 by using a QSn6.5-0.1 interlayer has been conducted in this study. The purpose of the study is to investigate the interface microstructure and strength of the joints, and to demonstrate the feasibility of using another high Sn content tin bronze interlayer to fabricate a typical microstructure joint. Microstructure examinations show that a penetration structure is formed by using a QSn6.5-0.1 interlayer, and its feature is apparent. Also, prolonging the holding time is conducive to the forming of the penetration structure. Shear testing results show that the penetration structure formed in a diffusion bonded joint of QSn4-3 and GH34 enhances the joint strength to almost the same as the QSn4-3 base metal. The mechanism forming the penetration structure is as follows: Sn atoms diffuse faster than Cu atoms into GH34 causing more Sn atoms to aggregate at the GH34 grain boundary. When the bonding temperature reaches 950°C for a short time, the aggregated Cu alloys having higher content of Sn than 5.3wt.% will melt, and penetrate and disrupt some grains from GH34 base metal.
Rapid Degradation of Host mRNAs by Stimulation of RNase E Activity by Srd of Bacteriophage T4
Authors: Qi Dan , Alawneh Abdulraheem M , Yonesaki Tetsuro , Otsuka Yuichi
Published: September 2015

Escherichia coli messenger RNAs (mRNAs) are rapidly degraded immediately after bacteriophage T4 infection, and the host RNase E contributes to this process. Here, we found that a previously uncharacterized factor of T4 phage, Srd (Similarity with rpoD), was involved in T4-induced host mRNA degradation. The rapid decay of ompA and lpp mRNAs was partially alleviated and a decay intermediate of lpp mRNA rapidly accumulated in cells infected with T4 phage lacking srd. Exogenous expression of Srd in uninfected cells significantly accelerated the decay of these mRNAs. In addition, lpp(T) RNA, with a sequence identical to the decay intermediate of lpp mRNA and a triphosphate at 5′-end, was also destabilized by Srd. The destabilization of these RNAs by Srd was not observed in RNase E-defective cells. The initial cleavage of a primary transcript by RNase E can be either direct or dependent on the 5′-end of transcript. In the latter case, host RppH is required to convert the triphosphate at 5′-end to a monophosphate. lpp(T) RNA, but not lpp and ompA mRNAs, required RppH for Srd-stimulated degradation, indicating that Srd stimulates both 5′-end-dependent and -independent cleavage activities of RNase E. Furthermore, pull-down and immunoprecipitation analyses strongly suggested that Srd physically associates with the N-terminal half of RNase E containing the catalytic moiety and the membrane target sequence. Finally, the growth of T4 phage was significantly decreased by the disruption of srd. These results strongly suggest that the stimulation of RNase E activity by T4 Srd is required for efficient phage growth.
Ketamine Sedation After Administration of Oral Contrast: A Retrospective Cohort Study
Authors: Teshome Getachew , Braun Janet L. , Lichenstein Richard
Published: September 2015

BACKGROUND:

The American Academy of Pediatrics and American Society of Anesthesiologists have published consensus-based fasting guidelines intended to reduce the risk of pulmonary aspiration. The purpose of our study was to compare the rate of adverse events in patients sedated with ketamine within 2 hours of oral contrast intake to those who were nil per os (NPO).

METHODS:

A retrospective cohort review of a database of children between July 2008 and May 2011. The rate of adverse events in children sedated with ketamine after intake of oral contrast for an abdominal computed tomography were compared with those sedated without taking oral contrast.

RESULTS:

One hundred and four patients sedated for a computed tomography scan; 22 patients were sedated within 2 hours of taking oral contrast, and 82 were NPO. The 2 groups were comparable with regard to gender, race, and American Society of Anesthesiologists status. The mean (SD) time between the second dose of oral contrast and induction of sedation was 58 (24) minutes. Vomiting occurred in 4 of 22 patients in the oral contrast group (18%; 95% confidence interval 2%–34%) and 1 of 82 patients in the NPO group (1%; 95% confidence interval, 0%, 4%; P < .001). There was no difference in oxygen desaturation between the groups (P = .6).

CONCLUSIONS:

Children who received oral contrast up to 58 minutes before ketamine sedation had a higher rate of vomiting than those who did not receive oral contrast. We did not identify cases of clinical aspiration, and the incidence of hypoxia between the 2 groups was not statistically significant.
Risk Factors for Prolonged Length of Stay or Complications During Pediatric Respiratory Hospitalizations
Authors: Kaiser Sunitha V. , Bakel Leigh-Anne , Okumura Megumi J. , Auerbach Andrew D. , Rosenthal Jennifer , Cabana Michael D.
Published: September 2015

BACKGROUND AND OBJECTIVES:

Respiratory illnesses are the leading cause of pediatric hospitalizations in the United States, and a major focus of efforts to improve quality of care. Understanding factors associated with poor outcomes will allow better targeting of interventions for improving care. The objective of this study was to identify patient and hospital factors associated with prolonged length of stay (LOS) or complications during pediatric hospitalizations for asthma or lower respiratory infection (LRI).

METHODS:

Cross-sectional study of hospitalizations of patients <18 years with asthma or LRI (bronchiolitis, influenza, or pneumonia) by using the nationally representative 2012 Kids Inpatient Database. We used multivariable logistic regression models to identify factors associated with prolonged LOS (>90th percentile) or complications (noninvasive ventilation, mechanical ventilation, or death).

RESULTS:

For asthma hospitalizations(n = 85 320), risks for both prolonged LOS and complications were increased with each year of age (adjusted odds ratio [AOR] 1.06, 95% confidence interval [CI] 1.05–1.07; AOR 1.05, 95% CI 1.03–1.07, respectively for each outcome) and in children with chronic conditions (AOR 4.87, 95% CI 4.15–5.70; AOR 21.20, 95% CI 15.20–29.57, respectively). For LRI hospitalizations (n = 204 950), risks for prolonged LOS and complications were decreased with each year of age (AOR 0.98, 95% CI 0.97–0.98; AOR 0.95, 95% CI 0.94–0.96, respectively) and increased in children with chronic conditions (AOR 9.86, 95% CI 9.03–10.76; AOR 56.22, 95% CI 46.60–67.82, respectively). Risks for prolonged LOS for asthma were increased in large hospitals (AOR 1.67, 95% CI 1.32–2.11) and urban-teaching hospitals (AOR 1.62, 95% CI 1.33–1.97).

CONCLUSIONS:

Older children with asthma, younger children with LRI, children with chronic conditions, and those hospitalized in large urban-teaching hospitals are more vulnerable to prolonged LOS and complications. Future research and policy efforts should evaluate and support interventions to improve outcomes for these high-risk groups (eg, hospital-based care coordination for children with chronic conditions).
Amplitude-Integrated Electroencephalography Use in Preterm Infants: Current Knowledge and Applications
Authors: Karpiński Łukasz , Mazela Jan
Published: September 2015

Preterm infants are a neonatal population with increased risk of morbidity and mortality. The major interest in preterm care is brain function and its association with neurodevelopmental outcome. The principal method for monitoring brain function is electroencephalography, especially when adjusting medication for epileptic activity. An easier and more straightforward way to ascertain brain function is amplitude-integrated encephalography. Caregivers use amplitude-integrated encephalography in many clinical scenarios, including assessment of neonatal encephalopathy, monitoring of seizures, detection of intraventricular hemorrhages, and prediction of long-term development. In neonatal intensive care units around the world, caregivers widely use amplitude-integrated encephalography, and researchers are constantly discovering novel applications for this technology.
Binge Drinking
Authors: Siqueira Lorena , Smith Vincent C. ,   COMMITTEE ON SUBSTANCE ABUSE, Levy Sharon , Ammerman Seth D. , Gonzalez Pamela K. , Ryan Sheryl A. , Siqueira Lorena M. , Smith Vincent C.
Published: September 2015

This Clinical Report was retired.

Alcohol is the substance most frequently abused by children and adolescents in the United States, and its use is associated with the leading causes of death and serious injury at this age (ie, motor vehicle accidents, homicides, and suicides). Among youth who drink, the proportion who drink heavily is higher than among adult drinkers, increasing from approximately 50% in those 12 to 14 years of age to 72% among those 18 to 20 years of age. In this clinical report, the definition, epidemiology, and risk factors for binge drinking; the neurobiology of intoxication, blackouts, and hangovers; genetic considerations; and adverse outcomes are discussed. The report offers guidance for the pediatrician. As with any high-risk behavior, prevention plays a more important role than later intervention and has been shown to be more effective. In the pediatric office setting, it is important to ask every adolescent about alcohol use.
Legalidad empírica y realidad efectiva
Authors: Pringe Hernán
Published: September 2015

Se investigan las condiciones que la doctrina de Kant establece para la predicación de la realidad efectiva de objetos empíricos determinados. Se sostiene: a) que para tal predicación no solo es necesario que haya percepción, sino que también se requiere cierta homogeneidad de los datos sensibles y b) que el conocimiento de la existencia de objetos empíricos determinados depende de la aplicación de principios regulativos de la experiencia.
Estrategias terapéuticas e intelectualismo en el De ira de Séneca
Authors: Braicovich Rodrigo Sebastián
Published: September 2015

Pretendo demostrar que a) el tratado De irade Séneca incluye no una sino dos estrategias terapéuticas diseñadas para evitar la ira, y que b) que la segunda de estas estrategias –la cual ha sido desatendida en la literatura secundaria– presenta problemas irresolubles cuando la contrastamos contra la teoría estoica de la acción, la cual se funda en premisas intelectualistas.
La frontera entre lo humano y lo inhumano como problema hermenéutico.
Authors: Torregroza Lara Enver Joel
Published: September 2015

Comprendemos la necesidad de abandonar visiones de la naturaleza humana onmicomprensivas y definitivas; sin embargo, los desarrollos tecnobiológicos y tec-nobiocráticos parecen obligarnos a la paradoja de tener que proponer límites para lo humano, sin poder creer en ellos como antes. Tal paradoja, que opera tanto en las expectativas epistémicas de las ciencias naturales y humanas, como en el debate y la opinión pública en el mundo globalizado, también reta a la filosofía: ¿por qué resulta necesario trazar esa frontera entre lo humano y lo inhumano? ¿Qué tipo de frontera puede ser? ¿Es posible trazar esa frontera?
Nietzsche y la biopolítica: cuatro lecturas de Nietzsche como pensador biopolítico
Authors: Lemm Vanesa
Published: September 2015

La recepción durante el siglo XXse preguntó si la filosofía nietzscheana era a-, im- o anti-política, es decir, si podía ser asimilada por la democracia, o si era antimoderna, elitista y reaccionaria. El italiano Roberto Esposito ha propuesto leerla como formando e informando el paradigma de la biopolítica. Se discuten cuatro lecturas de esa
biopolítica: como formadora del paradigma de la inmunidad, como tanatopolítica, como liberal y neoliberal, y como biopolítica afirmativa.
Nuevo trabajo para una teoría de los universales [segunda parte]
Authors: Morales Pérez Diego Hernán , Lewis David
Published: September 2015

El texto que se presenta aquí es la segunda parte de la traducción de
New Theory of Universalsy se corresponde con las últimas secciones del
artículo original. En el anterior número de Ideas y Valores (157 de abril
de 2015) se publicó la primera parte, que corresponde a la introducción
y las dos primeras secciones del original.
Forcades, Teresa. La teología feminista en la historia. Trad. Julia Argemí. Barcelona: Fragmenta, 2011. 144 pp.
Authors: Rojas Gil Luisa Fernanda
Published: September 2015

Teresa Forcades se une con esta obra a la investigación crítica que ha cobrado fuerza en los últimos años en torno a los problemas de discriminación que la mujer ha padecido a lo largo de la historia. El desarrollo del libro tiene por tanto un enfoque histórico en el que se resaltan tanto casos de desigualdad que describen el problema de la mujer como casos en contra de tal desigualdad que buscan rebatir el problema. Pero su enfoque, podríamos decir, general y principal, es teológico, de manera que si bien su investigación se dirige a rescatar diversos casos históricos, los circunscribe principalmente a la tradición cristiana católica, y en ocasiones a otras tradiciones religiosas.
Schmitt, Carl. Diálogo sobre el poder y el acceso al poderoso. Trad. Silvia Villegas. Buenos Aires: Fondo de Cultura Económica, 2010. 96 pp.
Authors: Vega Facundo
Published: September 2015

¿El poder habita lo extraordinario? Repercusiones de la fragilidad humana

Para el lector de teoría y filosofía política, la figura de Carl Schmitt presenta una ambivalencia radical. En su persona, se conjuga el haber colaborado con el régimen más criminal de la historia junto con la elaboración de uno de los pensamientos políticos más sugestivos del siglo XX.