bluuebunny/crossref_metadata_2025_split huggingface dataset:
A MUSTA-FORCE Algorithm for Solving Partial Differential Equations of Relativistic Hydrodynamics
Authors: Porter-Sobieraj Joanna , Słodkowski Marcin , Kikoła Daniel , Sikorski Jan , Aszklar Paweł 
Published: December 2017

Abstract
Understanding event-by-event correlations and fluctuations is crucial for the comprehension of the dynamics of heavy ion collisions. Relativistic hydrodynamics is an elegant tool for modelling these phenomena; however, such simulations are time-consuming, and conventional CPU calculations are not suitable for event-by-event calculations. This work presents a feasibility study of a new hydrodynamic code that employs graphics processing units together with a general MUSTA-FORCE algorithm (Multi-Stage Riemann Algorithm – First-Order Centred Scheme) to deliver a high-performance yet universal tool for event-by-event hydrodynamic simulations. We also investigate the performance of selected slope limiters that reduce the amount of numeric oscillations and diffusion in the presence of strong discontinuities and shock waves. The numerical results are compared to the exact solutions to assess the code’s accuracy.
Eine Behörde als simuliertes Unternehmen
Authors: Böick Marcus 
Published: December 2017

Abstract
After the fall of socialism in East Germany, a special organization known as the “Treuhandanstalt” organized the crisis-ridden transformation of about 8,000 formerly state-owned corporations from the planned to the market economy. Most of the time, this organization operated under much criticism and pressure from outside, but internal operations were also characterized by conflicts about “corporate identity”. While some saw the “Treuhand” as a politically dependent state bureaucracy, others regarded it as an autonomous corporation. This article examines this conflict zone between internal as well as external perceptions of the “nature” of the Treuhandanstalt. It concludes that this was a state organization, set up in exceptional times, as an administration simulating a corporation.
Das Universalbanksystem – Ein Erfolgsmodell auf den Finanzmärkten?
Authors: Wixforth Harald 
Published: December 2017

Abstract
The recent debate on the structure of financial systems created harsh criticism of the business policy of the great universal banks. Economists as well as prominent experts in banking demanded a strict control of their business or even their liquidation. On the other hand, the banks themselves, together with representatives of economic interest groups, defended the status quo. Their argument is that the universal banking systems created great benefits for the economy in several central European countries during the last 150 years. Historical evidence, however, reveals that this is not true. Universal banks were not an instrument to stabilize economies in times of crises. On the contrary, crises were aggravated by their business policy on several occasions. In sum, historical analysis shows that the actual business operations and influence of universal banks in modern economies have to be scrutinized closely.
Fractional Effects on the Light Scattering Properties of a Simple Binary Mixture
Authors: Rodríguez Rosalío F. , Fujioka Jorge , Salinas-Rodríguez Elizabeth 
Published: December 2017

AbstractA fractional generalized hydrodynamic (GH) model of the concentration fluctuations correlation function is analyzed. Our analysis is based on a previously proposed irreversible thermodynamics non-fractional model that describes the first GH deviations in a finite frequency and wavelength regime where the local equilibrium assumption is not valid. Our basic purpose is to generalize this theory to investigate the time fractional effects on the intermediate scattering function (ISF) of a model of a binary mixture. We discuss two different forms of introducing the fractional derivatives into the hydrodynamic time evolution equation of the ISF and examine their consistency in the non-fractional limit. We calculate analytically the fractional intermediate scattering function (FISF) and compare it with the non-fractional one. We find that although the FISFs are in general less than ISF, the FISF may be a significant fraction of the ISF (∼36%) and might be measurable by light or neutron scattering techniques. We show that fractional time derivatives provide a consistent description of this correlation function in the GH regime and reduce to its well-known behavior in the Navier–Stokes limit (NS) where local equilibrium is restored. We also suggest an experimental verification of our results for near equilibrium states. Finally, we summarize the main results of our work and make some further physical remarks.
PIIN Cancellation Using a Novel Receiving Architecture for Spectral/Spatial SAC-OCDMA System
Authors: Bouarfa A. , Kandouci M. , Garadi A. , Djellab H. 
Published: December 2017

AbstractIncreasing the number of users presents a limitation in one-dimensional (1D) spectral amplitude coding (SAC) for Optical Code Division Multiple Access (OCDMA) system. In order to overcome this disadvantage, a new architecture of the two-dimensional wavelength/spatial SAC-OCDMA system using the multi-diagonal (MD) code has been proposed. The 2D-MD code possesses the same properties of 1D-MD code, which leads to total suppression of the multiple access interference. Unlike conventional receivers used in precedent studies, where the phase-induced intensity noise (PIIN) is a drawback, the suggested structure not only eliminates PIIN but reduces the system architecture. The results show that the user’s number reached by the proposed system is the user number’s multiplication of the 1D system and the couplers’ number. Moreover, the new 2D-MD system presents good performances at the high data rate.
Super-thermal light for imaging applications
Authors: Allevi Alessia , Cassina Silvia , Bondani Maria 
Published: December 2017

AbstractWe report on a new classical light source useful for ghost-imaging applications. The light is obtained by frequency doubling a conventional speckle pattern having an overall multi-mode thermal distribution. The frequency-doubled light acquires a super-thermal distribution, which induces higher correlations at a beam splitter and, as a consequence, a higher visibility in ghost-imaging protocols.
Examining the Policy Learning Dynamics of Atypical Policies with an Application to State Preemption of Local Dog Laws
Authors: Fix Michael P. , Mitchell Joshua L. 
Published: December 2017

AbstractMost of the literature on policy diffusion focuses on palpable issues such as economic or morality policies. As such, we know little about the mechanisms of diffusion for preemption of atypical policies such as animal regulations that lack a clear economic or ideological motivation. In this article, we propose and test a theory of conditional policy learning to explain the diffusion of atypical policies. We posit that a type of policy learning is occurring here, but that states only look to their neighbors when certain policy specific factors are present in their state. His theory is then applied to examine the dynamics of state adoption of laws preempting local Breed Specific Legislation from 1988 to 2014. Using an exponential model, two policy learning and two conditional learning hypotheses are tested. This study finds that policy learning is occurring through both external and internal pathways. This advances the literature by demonstrating that preemption occurs through the learning mechanism, but this learning effect is conditioned on policy relevant factors within the state.
Novel Red-Orange Phosphors Na2BaMg(PO4)2:Pr3+: Synthesis, Crystal Structure and Photoluminescence Performance
Authors: Pan Lu , Yang Xiaozhan , Xiong Chaoyue , Deng Dashen , Qin Chunlin , Feng Wenlin 
Published: December 2017

Abstract
A series of new red-orange emission phosphors Na2BaMg(PO4)2:Pr3+ were synthesised by a high-temperature solid-state reaction. The crystal structure and photoluminescence properties of these samples were characterised by X-ray diffraction and spectroscopic measurements. This compound holds P3̅m1 space group of the trigonal system with the lattice parameters of hexagonal cell a=0.5304(3) nm and c=0.6989(3) nm. The phosphor emits the strongest peak at 606 nm when excited by 449 nm. The average Commission Internationale de l’Eclairage chromaticity coordinates calculated for the phosphors are (0.52, 0.46). The results demonstrate the potential application of these phosphors in solid-state lighting and other fields.
Correlation of Deformation Strain with the Tensile Properties and Fracture Mode of the AA 2014 Alloy Using Simulations and Experiments
Authors: Prabhu T. R. 
Published: December 2017

Abstract
The influence of deformation strain on the tensile properties of the forged bar was studied in the present study. An aerospace structural Al alloy (AA 2014) was selected for the experiments. In order to understand the strain distribution inside the forged bar, the forging process was simulated using the DEFORM3D finite element software. The model was used to predict the stress and temperature distributions. Tensile sample locations were identified based on the deformation strain values predicted by the model. The samples were tested under both notched and unnotched conditions. Variation of tensile properties with the deformation strain was correlated with the microstructure. The fractography of the tensile samples was analyzed with the aid of scanning electron microscopy to identify the failure mode. The important results of the present study are: (1) the strength and ductility properties increase with the increase of deformation strain for both smooth and notched conditions. However, this increase was not correlated to the strain. This uncorrelated variation was attributed to the complex variability in the grain size/structure in the material. (2) Microstructure examination revealed that the variation in the grain size reduced with the increase of deformation strain. The observed grain refinement with the increase of deformation strain was mainly attributed to the strain induced grain fragmentation and dynamic recovery. (3) The fractography of the smooth specimens showed that ductile fracture features, such as dimples and ductile tear regions, were more significant above a strain of 1.34, indicating improved ductility. On the other hand, for the notched specimens, brittle fracture features such as cleavage facets and ridges were predominant for all the strain value conditions. (4) The fracture appeared to be transgranular type in both the smooth and the notched samples for the tested strain range.
Genomic Prediction Accuracy for Resistance Against Piscirickettsia salmonis in Farmed Rainbow Trout
Authors: Yoshida Grazyella M , Bangera Rama , Carvalheiro Roberto , Correa Katharina , Figueroa René , Lhorente Jean P , Yáñez José M 
Published: December 2017

Abstract
Salmonid rickettsial syndrome (SRS), caused by the intracellular bacterium Piscirickettsia salmonis, is one of the main diseases affecting rainbow trout (Oncorhynchus mykiss) farming. To accelerate genetic progress, genomic selection methods can be used as an effective approach to control the disease. The aims of this study were: (i) to compare the accuracy of estimated breeding values using pedigree-based best linear unbiased prediction (PBLUP) with genomic BLUP (GBLUP), single-step GBLUP (ssGBLUP), Bayes C, and Bayesian Lasso (LASSO); and (ii) to test the accuracy of genomic prediction and PBLUP using different marker densities (0.5, 3, 10, 20, and 27 K) for resistance against P. salmonis in rainbow trout. Phenotypes were recorded as number of days to death (DD) and binary survival (BS) from 2416 fish challenged with P. salmonis. A total of 1934 fish were genotyped using a 57 K single-nucleotide polymorphism (SNP) array. All genomic prediction methods achieved higher accuracies than PBLUP. The relative increase in accuracy for different genomic models ranged from 28 to 41% for both DD and BS at 27 K SNP. Between different genomic models, the highest relative increase in accuracy was obtained with Bayes C (∼40%), where 3 K SNP was enough to achieve a similar accuracy to that of the 27 K SNP for both traits. For resistance against P. salmonis in rainbow trout, we showed that genomic predictions using GBLUP, ssGBLUP, Bayes C, and LASSO can increase accuracy compared with PBLUP. Moreover, it is possible to use relatively low-density SNP panels for genomic prediction without compromising accuracy predictions for resistance against P. salmonis in rainbow trout.
Szemfelszíni laphám-neoplasia
Authors: Tóth Gábor , Sándor Gábor László , Gyenes Andrea , Tóth Jeannette , Seitz Berthold , Nagy Zoltán Zsolt , Szentmáry Nóra 
Published: December 2017

Abstract: To summarize actual knowledge on epidemiology, etiology, pathology, clinical apparence and treatment of ocular surface squamous neoplasias. We summarize up-to-date literature on conjunctival intraepithelial neoplasia and invasive squamous cell carcinoma and present some own cases. Ocular surface squamous neoplasia is the most common malignant ocular surface tumor and the third most common ocular malignancy following malignant melanoma and lymphoma. In spite of its low malignant potential, in advanced stages it may reduce visual acuity significantly or even the eye globe has to be removed. In case of metastasis it may also be life-threatening. As local recurrences of ocular surface squamous neoplasias may occur, knowledge of intra- and postoperative adjuvant treatment options are indispensable and regular control examinations are necessary. Identification and adequate treatment of ocular surface squamous neoplasias are necessary in order to avoid its progression and to prevent recurrences. Orv Hetil. 2017; 158(51): 2011–2022.
Zjawisko migracji Polaków. Następstwa i duszpasterska rola Kościoła
Authors: Dziedzic Jan 
Published: December 2017

Migracje Polaków nie są zjawiskiem nowym. Już w XIX wieku Polacy podróżowali do USA i Kanady. W 1913 roku aż 40 proc. górników w Zagłębiu Ruhry stanowili Polacy. Migracje nie ustały po II wojnie światowej. Ich liczba wzrosła do 8 mln. Podobnie w latach od 1971 do 1989 Polacy szukali możliwości swojego rozwoju zagranicą. Migracje nie skończyły się także po roku 1989 i trwają do dziś. Statystyki wskazują, że obecnie najwięcej obywateli Polski wyjeżdża do Wielkiej Brytanii, Niemiec, Holandii oraz Irlandii.Wyjazdy zagraniczne mają skutki zarówno pozytywne, jak i negatywne. Do tych pierwszych zaliczamy poznanie języka obcego, nowej kultury i obyczajów, zapoznanie się z nowymi technikami produkcji, oprawę jakości i standardu ekonomicznego życia. Wśród skutków negatywnych podaje się: osłabienie więzi małżeńskich, a nawet rozpad małżeństwa, eurosieroctwo, osłabienie życia religijnego, większe prawdopodobieństwo chorób, pracę poniżej własnych kompetencji i aspiracji.O polskich emigrantach nie zapomina Kościół. Polskie Misje Katolickie działają na całym świecie. Mają one pomagać w rozwoju religijnym migranta, zapewniając mu opiekę duszpasterską. Obecnie duszpasterstwo polskojęzyczne regularnie prowadzi ponad 2 tys. duchownych. Podkreślają oni za Janem Pawłem II, który poprzez swoje spotkania z Polonią nakreślił program formacyjny dla emigrantów, że do istotnych elementów pracy nad sobą należą: zachowanie własnej tożsamości, integracja w nowym środowisku oraz budowanie zasad moralnych opartych na paradygmacie „bardziej być” niż „mieć”.
Przesłanie dla Polski św. Andrzeja Boboli
Authors: Warchoł Paweł 
Published: December 2017

Każdy ze świętych ogłoszonych przez Kościół jest jedyny i niepowtarzalny w życiu i przesłaniu. Święty Andrzej Bobola błyszczy wśród nich wyjątkowością, gdyż inicjatywa wyniesienia na ołtarze nie wyszła od wiernego ludu, ale od niego, przebywającego już w królestwie Bożym. Jego prośba o kanonizację potwierdzona była skuteczną pomocą jezuitom w Pińsku, a potem w wyzwoleniu Polski z niewoli okupantów. Został także patronem Polski. Wobec tych znaków ludzie uwierzyli mu, dlatego z szacunkiem czcili jego ciało, które nie ulegało rozkładowi. Pomimo tylu nieszczęść nikt nie potrafił go zniszczyć. Do dziś leży w sanktuarium ku jego czci w Warszawie. Także w obecnych czasach św. Andrzej jest potrzebny do duchowego zmartwychwstania Polski. Przypomniał o tym w Strachocinie, objawiając się po raz trzeci i nakazując, aby go czcić.
Nódulos de Schmörl en una serie esqueletal contemporánea de La Plata, Argentina
Authors: Plischuk Marcos , Desántolo Bárbara , García Mancuso Rocío 
Published: December 2017

Los Nódulos de Schmörl (NS) son hernias verticales del disco intervertebral que generan depresiones en ambas caras de los cuerpos vertebrales. Las causas propuestas como generadoras de NS son numerosas: edad, sexo, predisposición génica, patologías preexistentes, morfología vertebral, procesos evolutivos y actividades ocupacionales. Este trabajo tiene como propósito analizar las relaciones entre sexo, edad, severidad y ubicación de los NS en una muestra contemporánea de carácter documentada, integrada por 100 individuos pertenecientes a la Colección Lambre, alojada en la Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Argentina. Todos los individuos son adultos, con edades entre 22 y 101 años, siendo 67 de sexo masculino y 33 de sexo femenino. Los NS fueron registrados según su ubicación y severidad y analizados en relación al sexo y la edad de muerte de los individuos. La prevalencia estimada para el total de la muestra fue de un 27%. No se encontraron diferencias significativas en las prevalencias por sexos ni se encontró una correlación entre la cantidad de lesiones y la edad de los individuos. La zona vertebral más afectada fue la toracolumbar con muy escaso compromiso cervical y sacro. Las lesiones fueron leves en su mayoría, presentándose con mayor frecuencia en el centro de la vértebra, indistintamente en su cara superior e inferior. La prevalencia total es coincidente con estudios de poblaciones contemporáneas aunque existe una gran disparidad en torno a esta frecuencia. El área toracolumbar se vería más afectada por recibir parte de la carga correspondiente al bipedismo, lo cual sumado a defectos en los tejidos articulares y, en menor medida, actividades ocupacionales explicarían en su conjunto la dinámica de las hernias discales verticales.
AVALIAÇÃO CLÍNICA DO USO DE MATERIAIS ANELÁSTICOS E ELÁSTICOS EM MOLDAGEM PARA PRÓTESE TOTAL: UM RELATO DE CASO
Authors: Siebra Mariane Moisés , Agra Wécia Ayrla Pereira , Pereira Ana Larisse Carneiro , Gomes Tiago Norões 
Published: December 2017

Neste trabalho, cujo tema é avaliação da diferença de retenção e estabilidade da prótese total usando materiais anelásticos e elásticos na moldagem funcional: um relato de caso, foi estudado os materiais elásticos e anelásticos utilizados na moldagem funcional de uma prótese total, avaliando os pré-requisitos retenção e estabilidade, buscando reconhecer o material que apresenta maior vantagem para uso cotidiano na clínica, onde o mesmo apresente uma boa manipulação, garanta um conforto ao paciente e apresente um resultado funcional satisfatório. Decidiu-se realizar este estudo em meio as dificuldades clínicas encontradas e também relatos sobre a dificuldade em escolher um material, em meio a tantos, para realizar a moldagem funcional, que é uma etapa essencial na confecção de uma prótese. Sabendo da variedade de materiais existentes, buscou-se um conhecimimento prático que indicasse um material que possa ser escolhido para essa moldagem com mais segurança, que apresente ao final uma prótese com boa retenção e estabilidade. Realizou-se coleta no prontuário de uma paciente onde haviam sido confeccionadas duas próteses totais, onde uma foi utilizado na moldagem funcional um material elástico e na outra um material anelástico. É possível perceber na prática clínica que um grande número de profissionais utilizam mais os materiais elásticos na moldagem pelas vantagens apresentadas, vantagens essas que foram possível vivenciar neste estudo, como uma melhor manipulação, manuseio, limpeza dos resíduos e o resultado final.
Necesidades formativas. Modelos para su análisis y evaluación
Authors: Diz López María Julia 
Published: December 2017

El propósito de este trabajo es acotar el concepto de necesidad y sus diferentes acepciones, determinar el significado del término necesidad formativa y estudiar los principales modelos de análisis y evaluación de necesidades. Para ello se ha realizado una revisión teórica basada en el estudio documental, acudiendo a fuentes bibliográficas especializadas: libros, revistas, investigaciones en la materia. A partir de la cual, se ha organizado la información recopilada, se ha analizado y redactado el estudio que presentamos. Como principales conclusiones se ha determinado que el concepto de necesidad es ambiguo y toma diferentes significados según el enfoque empleado para
Revisitando W. Kilpatrick e seus contributos visionários para a pedagogia na atualidade
Authors: Jales Ribeiro Esperança , Alexandre Felizardo Sara 
Published: December 2017

William Kilpatrick (1871-1965), educador e filósofo americano, foi uma das figuras cimeiras do movimento progressista para a educação. Revisitando o seu contributo refletiremos sobre as implicações do seu trabalho para a compreensão do modo como se aprende e da forma como se perpetivam o educador e o educando nesse processo, deixando, assim, antever aqueles que são os pressupostos essenciais a uma abordagem dialógica da prática educativa na atualidade.
Currículo, educação popular e responsabilidade social na Universidade de Évora: para um conhecimento académico mais humanista e solidário
Authors: Nico José Carlos Bravo , Nico Lurdes Pratas 
Published: December 2017

A Universidade Popular Túlio Espanca/Universidade de Évora (UPTE/UÉ) tem vindo a conceber e concretizar dispositivos de educação popular, intergeracionais e não formais, nos quais convivem e se enriquecem, mutuamente, os conhecimentos académicos e os saberes populares. No sentido de promover a participação de professores e estudantes da academia, tem vindo a ocorrer uma gestão curricular, através da qual se privilegia a aprendizagem em contexto real e a consequente avaliação, através da realização de projetos socialmente úteis e relevantes para as populações e comunidades e que, em simultâneo, possam servir de oportunidades de inserção profissional para os estudantes envolvidos.
Supervisão pedagógica num modelo de avaliação participativa
Authors: Correia Filomena Silva , Lemos Fátima , Cosme Augusta , Moura Rosalino 
Published: December 2017

A supervisão pedagógica pode constituir-se como espaço, para o desenvolvimento da profissionalidade docente, logo fundamento para a nossa opção, pelo método de investigação-ação. Pretendemos desenvolver um modelo de observação colaborativo, transdisciplinar e vertical. O fundamento metodológico de pesquisa centra-se num modelo de observação por pares pedagógicos, de diferentes ciclos e níveis de ensino, tendo por foco as práticas docentes em contexto de sala de aula. A amostra (n=22) é constituído pelos docentes do pré-escolar, 1º ciclo, 2º e 3º ciclo de ensino de um Agrupamento de Escolas. Um estudo de natureza qualitativa, suportado na triangulação de métodos e técnicas.
Factores de (In)Sucesso no Ensino Básico: Perspectivas de Encarregados de Educação
Authors: Santos Teresa Jesus Correia Paulino , Alves Maria Palmira Alves 
Published: December 2017

O tema da relação entre avaliação e sucesso escolar é muito debatido pelos decisores políticos, professores, alunos e encarregados de educação mas, frequentemente, é reduzido à natureza sumativa ou certificativa da avaliação. Apresentamos alguns resultados de um estudo, realizado num agrupamento de escolas, localizado na zona Norte, cujo principal objetivo é conhecer a perspetiva dos Encarregados de Educação (EE) sobre o sucesso escolar e, consequentemente, o sentido que atribuem ao currículo e à avaliação das aprendizagens . Os resultados revelaram que não há grande divergência de opiniões entre os EE dos alunos com mais e com menos sucesso escolar.