bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modeling the seasonal evolution of the Arctic sea ice floe size distribution
Authors: Zhang Jinlun , Stern Harry , Hwang Byongjun , Schweiger Axel , Steele Michael , Stark Margaret , Graber Hans C. 
Published: September 2016

Abstract
To better simulate the seasonal evolution of sea ice in the Arctic, with particular attention to the marginal ice zone, a sea ice model of the distribution of ice thickness, floe size, and enthalpy was implemented into the Pan-arctic Ice–Ocean Modeling and Assimilation System (PIOMAS). Theories on floe size distribution (FSD) and ice thickness distribution (ITD) were coupled in order to explicitly simulate multicategory FSD and ITD distributions simultaneously. The expanded PIOMAS was then used to estimate the seasonal evolution of the Arctic FSD in 2014 when FSD observations are available for model calibration and validation. Results indicate that the simulated FSD, commonly described equivalently as cumulative floe number distribution (CFND), generally follows a power law across space and time and agrees with the CFND observations derived from TerraSAR-X satellite images. The simulated power-law exponents also correlate with those derived using MODIS images, with a low mean bias of –2%. In the marginal ice zone, the modeled CFND shows a large number of small floes in winter because of stronger winds acting on thin, weak first-year ice in the ice edge region. In mid-spring and summer, the CFND resembles an upper truncated power law, with the largest floes mostly broken into smaller ones; however, the number of small floes is lower than in winter because floes of small sizes or first-year ice are easily melted away. In the ice pack interior there are fewer floes in late fall and winter than in summer because many of the floes are “welded” together into larger floes in freezing conditions, leading to a relatively flat CFND with low power-law exponents. The simulated mean floe size averaged over all ice-covered areas shows a clear annual cycle, large in winter and smaller in summer. However, there is no obvious annual cycle of mean floe size averaged over the marginal ice zone. The incorporation of FSD into PIOMAS results in reduced ice thickness, mainly in the marginal ice zone, which improves the simulation of ice extent and yields an earlier ice retreat.
Inclusão: Percepção dos professores
Authors: Ferreira Eliete Lira Nobre , Timoteo Emidia Inacio , Bezerra Martha Maria Macêdo 
Published: September 2016

Este estudo pretende analisar questões sobre a educação inclusiva. Discute principalmente aspectos históricos do movimento de inclusão e suas repercussões na sociedade atual. No que se refere a percepção dos professores na literatura, observou-se que uma maioria professores ainda julga os alunos sem deficiência como superiores àqueles que possuem alguma deficiência, considerem que a educação inclusiva precisa favorecer a socialização, base para a melhoria da qualidade da aprendizagem dos alunos com deficiência.
It takes a village of mentors
Authors: Lesgold Alan 
Published: September 2016

Excerpt:Reflecting on an extremely rewarding career, I am struck by how much it depended on a series of mentors – and of course on some lucky breaks. In this chapter, I first provide some personal history and then consider lessons I have learned along the way.Some Lessons Learned: A broad lesson from my career, beyond just valuing adventure, was that setbacks also are opportunities.Scholarly success does not come from having brilliant ideas. Rather, it comes from being able to explain simply the ideas one has developed after extended effort.Take your work seriously, but remember that life goes better if you don’t always take yourself too seriously.
Factors Influencing the Long-Term Properties of Fly Ash-Based Geopolymer Mortar
Authors: Duong N. A. , Škvára F. 
Published: September 2016

Abstract
The primary goal of the paper was to study the effects of key factors on the long-term mechanical properties of fly ash-based geopolymer. The factors considered consisted of curing time, humidity, temperature, admixture, and water coefficient. In the study, the geopolymer paste and mortar specimens were prepared and cured at four different environmental conditions: (1) ∼24°C and approximately 45 % RH; (2) 95°C and 100 %R.H; (3) 80°C and 25 %RH; and (4) ∼24°C and 90 %R.H. The compressive and flexural strength tests were performed for the mortar specimens at the ages of 7, 28, 120, 360, 540, and 720 days. X-ray diffraction (XRD), X-ray fluorescence (XRF), and nuclear magnetic resonance spectroscopy (23Na, 27Al, 29Si, MAS NMR) tests were performed for the paste specimens at the ages of 7, 28, 120, 360, 540, and 720 days. Selected specimens were also examined under scanning electron microscope (SEM). The results indicated that water evaporation from specimens was a major cause of the strength development of the geopolymer. In addition to SiO4−4 anions in alkali activator, which accelerated the geopolymerization, the Na+, Ca2+, and Mg2+ ions in the system also played an important role in bridging -Si-O-Si-O-Al- chain, thus improving strength development of the geopolymer. The crystallization occurred only in the hydrothermal environment, and it had little influence on the strength development of the low calcium fly ash-based geopolymer mortar as a very small amount of crystalline phase was formed.
Novel Approach for Endurance Testing of Riblet-Structured Thin Sheets Under Realistic Loading Conditions in Active Drag-Reduction Systems
Authors: Stille S. , Schiek M. , Silex W. , Beck T. , van Waasen S. , Singheiser L. 
Published: September 2016

Abstract
A novel fatigue testing device for bending loading was developed that resembles loading conditions in aerodynamic drag-reduction systems, creating transversal surface waves to modify the surfaces' turbulent boundary layer. The setup uses Lorentz force actuators and is employed in fully reversed loading (R = −1) at a testing frequency of around 100 Hz. Tests were run on riblet-structured Alclad 2024 T351 material. The damage mechanisms for this material are found to be similar for axial and flexural loading. In the high cycle fatigue regime up to a few 106 load cycles, the S/N-curves are also comparable for both loading modes. One distinct difference between the loading modes is a less pronounced threshold behavior in the S/N-curve for bending. Furthermore, a higher stress level has to be applied for fatigue failure in this case.
Evaluation of Transport Properties of Concrete Made With E-Waste Plastic
Authors: Senthil Kumar K. , Premalatha P. V. , Baskar K. 
Published: September 2016

Abstract
An experimental program was carried out to study the transport properties of concrete made with E-waste plastic (high impact polystyrene (HIPS)). The concrete was prepared with different percentages (0, 10, 20, 30, 40, and 50) of HIPS as partial replacement of natural coarse aggregate by volume. The transport properties of concrete, such as water absorption and sorptivity, were investigated and results were reported. The percentage of water absorption of concrete with HIPS shows higher value compared to the control concrete. The increase in HIPS increases the water absorption of concrete but the values were within the permissible limit. The sorptivity values were increased with increase in HIPS content; all values were higher than control concrete; however, it decreased with increase in curing age. The sorptivity results were in line with that of water absorption results. Recycling of E-waste plastic (HIPS) as an aggregate in concrete as a new construction material may be one of the feasible solution to environment pollution, natural aggregate depletion and E-waste recycling.
Laboratory Evaluation of Pavement Performance and Burning Behavior of Flame-Retardant Asphalt Mixtures
Authors: Li B. , Wen Y. , Li X. , Li X. 
Published: September 2016

Abstract
This study evaluated the effect of flame retardant on the pavement performance and burning properties of asphalt mixtures. Two flame-retardant additives (homemade and commercial) were separately added to control asphalt mixtures. Moisture-susceptibility, rutting, and low-temperature cracking tests were conducted to determine the pavement performance of these mixtures. In addition, the burning properties of these mixtures were evaluated through intuitive observation, burning-duration time, surface temperature, and residual stability after burning. From the pavement performance test results, the flame-retardant asphalt mixture showed decreased moisture susceptibility, better performance of resistance to rutting, and no change in the low-temperature cracking when compared to the control asphalt mixture. In addition, the flame-retardant asphalt mixture was effective in delaying the flame time and decreasing the surface temperature and residual stability after burning.
Crack-Closure Measurements in Low-Cycle Fatigue With Digital Image Correlation
Authors: Rabbolini S. , Beretta S. , Foletti S. , Rusconi L. 
Published: September 2016

Abstract
In this work, an experimental campaign devoted to measure closure levels onto specimens subjected to low-cycle fatigue (LCF) conditions is described. Two different straining conditions were investigated (i.e., R = −1 and R = 0.5). The measurements of σop, crack-opening stresses, were carried out by adopting the concept of “crack-tip opening displacements” and “local strain cycles.” However, instead of the original strain gauges measurements above the plane of the propagating crack, the strain cycles were measured by DIC in proximity of the crack tip. Experimental results were compared to those provided by the analytical model proposed by Newman.
Xanthomonas campestris attenuates virulence by sensing light through a bacteriophytochrome photoreceptor
Authors: Bonomi Hernán R , Toum Laila , Sycz Gabriela , Sieira Rodrigo , Toscani Andrés M , Gudesblat Gustavo E , Leskow Federico C , Goldbaum Fernando A , Vojnov Adrián A , Malamud Florencia 
Published: September 2016

AbstractPhytochromes constitute a major photoreceptor family found in plants, algae, fungi, and prokaryotes, including pathogens. Here, we report that Xanthomonas campestris pv. campestris (Xcc), the causal agent of black rot disease which affects cruciferous crops worldwide, codes for a functional bacteriophytochrome (XccBphP). XccBphP possesses an N‐terminal PAS2‐GAF‐PHY photosensory domain triad and a C‐terminal PAS9 domain as its output module. Our results show that illumination of Xcc, prior to plant infection, attenuates its virulence in an XccBphP‐dependent manner. Moreover, in response to light, XccBphP downregulates xanthan exopolysaccharide production and biofilm formation, two known Xcc virulence factors. Furthermore, the XccbphP null mutant shows enhanced virulence, similar to that of dark‐adapted Xcc cultures. Stomatal aperture regulation and callose deposition, both well‐established plant defense mechanisms against bacterial pathogens, are overridden by the XccbphP strain. Additionally, an RNA‐Seq analysis reveals that far‐red light or XccBphP overexpression produces genomewide transcriptional changes, including the inhibition of several Xcc virulence systems. Our findings indicate that Xcc senses light through XccBphP, eliciting bacterial virulence attenuation via downregulation of bacterial virulence factors. The capacity of XccBphP to respond to light both in vitro and in vivo was abolished by a mutation on the conserved Cys13 residue. These results provide evidence for a novel bacteriophytochrome function affecting an infectious process.
ESTIMATING METHODS OF INVESTMENTS EFFICIENCY TO OWN GENERATION UNDER THE RISK CONDITIONS
Authors: Klimovets O. V. , Zubakin V. A. 
Published: September 2016

The article is devoted to the assessment of the on-site generation effectiveness taking into account the risk associated with the uncertainty of future values of energy prices. It is shown that the economic efficiency is significantly affected by the unevenness of growth in energy prices and the correlation between load profile and graph of wholesale electricity prices.Restrictions on the applying existing approaches to evaluating the effectiveness of investment projects, based on calculation of uniquely defined cash flows, are approved. The paper shows the necessity of taking risks into account in order to increase the quality of decisions given the influence of energy resources prices on project’s economic efficiency and the uncertainty of future price values. Based on the analysis of quantitative methods of risk assessment it is proposed to use fuzzy-set approach as one of the most effective methods in the conditions of uncertainty of future values.
Hepatic expression of miR-122 and antioxidant genes in patients with chronic hepatitis B
Authors: Wójcik Kamila , Piekarska Anna , Szymańska Bożena , Jabłonowska Elżbieta 
Published: September 2016

Introduction: The pathogenesis of chronic hepatitis B depends on both, the immune response and oxidative stress. Aim of the study: To assess the hepatic expression of miR-122 and the antioxidant genes: HMOX-1, NQO1 and GFER1, in liver biopsy specimens obtained from patients with chronic hepatitis B, with regard to selected clinical and histological parameters, using RT-PCR. Results: The study group comprised 34 HBV-infected patients. Statistically significant associations were found between lower hepatic expression of HMOX-1 and greater severity of liver inflammation (p=0.04). However, significantly higher expression of NQO1 was observed in patients with advanced liver fibrosis (p=0.035). Hepatic expression of miR-122 in HBV patients was not associated with viral load or liver injury. Conclusion: The hepatic expression of HMOX-1and NQO1 may be associated with liver injuries in chronic hepatitis B. However, hepatic expression of miR-122 does not seem to correspond to progression of the liver disease.
Derivation and Validation of the Periodontal and Tooth Profile Classification System for Patient Stratification
Authors: Morelli Thiago , Moss Kevin L. , Beck James , Preisser John S. , Wu Di , Divaris Kimon , Offenbacher Steven 
Published: September 2016

Background: The goal of this study is to use bioinformatics tools to explore identification and definition of distinct periodontal and tooth profile classes (PPCs/TPCs) among a cohort of individuals by using detailed clinical measures at the tooth level, including both periodontal measurements and tooth loss.Methods: Full‐mouth clinical periodontal measurements (seven clinical parameters) from 6,793 individuals from the Dental Atherosclerosis Risk in Communities Study (DARIC) were used to identify PPC. A custom latent class analysis (LCA) procedure was developed to identify clinically distinct PPCs and TPCs. Three validation cohorts were used: NHANES (2009 to 2010 and 2011 to 2012) and the Piedmont Study population (7,785 individuals).Results: The LCA method identified seven distinct periodontal profile classes (PPCs A to G) and seven distinct tooth profile classes (TPCs A to G) ranging from health to severe periodontal disease status. The method enabled identification of classes with common clinical manifestations that are hidden under the current periodontal classification schemas. Class assignment was robust with small misclassification error in the presence of missing data. The PPC algorithm was applied and confirmed in three distinct cohorts.Conclusions: The findings suggest PPC and TPC using LCA can provide robust periodontal clinical definitions that reflect disease patterns in the population at an individual and tooth level. These classifications can potentially be used for patient stratification and thus provide tools for integrating multiple datasets to assess risk for periodontitis progression and tooth loss in dental patients.
Las competencias en la educación superior: estrategia biopolítica y afinamiento del carácter performativo del conocimiento
Authors: Díaz Flórez Olga Cecilia 
Published: September 2016

Dentro del conjunto de transformaciones promovidas en la educación, una que ha resultado central para la política oficial es la de impulsar, presionar y “seducir” a las instituciones educativas y a sus actores hacia una formación y evaluación centradas en competencias. Para problematizar estas orientaciones, se recurre a su contextualización como estrategia de gobierno liberal que se ha actualizado a través de una gubernamentalidad neoliberal y que, acudiendo a Foucault, aquí se denomina gobierno de la individualización. Sobre la lógica que adquiere este énfasis en las competencias, se destaca el carácter performativo del conocimiento, y las implicaciones que este tiene en los procesos formativos, particularmente en la educación superior.
La enseñanza de las ciencias naturales y la educación ambiental en la escuela: realidades y desafíos
Authors: Gutiérrez Gómez Gloria Leonor 
Published: September 2016

“Quien conozca sólo un punto de vista o una forma de ver las cosas no cree que otro haya estado nunca en su lugar ni que otro venga después; ni duda, ni hace pruebas” (Ernst Mach,1911) Hoy se reconoce la importancia de la formación en Ciencias en la escuela básica y media, pues la influencia de los asuntos científicos y tecnológicos en la cotidianidad de cualquier individuo es evidente y creciente. Dicha realidad denota la necesidad de fortalecer espacios educativos que, de la mano de las diversas tendencias pedagógicas y didácticas, promuevan la formación de ciudadanos que se interesen por debatir las cuestiones socio-científicas de manera individual y colectiva. La consolidación de tales espacios demanda la formación de docentes que se comprometan con el desarrollo de ejercicios de autorreflexión en torno al quehacer y la práctica pedagógica, de forma tal que se asuma la necesidad de contribuir al estudio y análisis de la situación de los aprendizajes de los niños, niñas y jóvenes, reconociendo las fortalezas y oportunidades del proceso, lo que sin duda contribuirá a pensar en nuevas y diferentes formas de plantear la enseñanza de las Ciencias.
Hacia una caracterización del discurso crítico-bibliográfico del siglo XVIII americano
Authors: Coltters Illescas Cathereen 
Published: September 2016

El presente estudio ofrece una caracterización del discurso crítico bibliográfico americano, categoría que permite reunir a un heterogéneo grupo de obras que, durante el siglo XVIII, intentaron recoger la casi totalidad de la producción cultural de América, en el marco de las polémicas acerca de la inferioridad cultural del Nuevo Mundo; obras producidas por letrados ubicados entre la tradición barroca y la ilustración católica. Este discurso es propuesto, además, como el antecedente del pensamiento crítico literario e historiográfico latinoamericano, y supone una temprana reflexión acerca del estado de la literatura y la cultura ya en tiempos coloniales. Puede decirse, también, que cada repertorio bibliográfico es una evidencia de las diferentes etapas de un discurso crítico bibliográfico en proceso, en el marco de un proceso cultural mayor de autoafirmación del grupo criollo.
Efraín Huerta y José Revueltas: crónica de una amistad literaria (1937-1938)
Authors: Cajero Vázquez Antonio 
Published: September 2016

Este artículo intenta, primero, reconstruir la amistad personal e intelectual entre Efraín Huerta y José Revueltas. El pretexto: una carta desconocida de Huerta, injustamente olvidada en la Benson Latin American Collection, dela Universidad de Texas. Luego, se presenta la transcripción de la carta, fechada como el poemario de Carlos Pellicer, Hora de junio, así como una tarjeta donde el remitente explica a su corresponsal por qué no le ha enviado la carta. Ambos testimonios se hallan profusamente anotados con el fin de aclarar las múltiples referencias a personas, lugares, autores, obras y proyectos.
Derechos humanos y mecanismos de interdicción de la morosidad administrativa — Una nueva legitimidad
Authors: Damsky Isaac Augusto 
Published: September 2016

El objetivo de este artículo es analizar las deficiencias de los mecanismos tradicionales de combate a la morosidad de la Administración Pública en el ámbito del procedimiento administrativo, y identificar nuevos retos para la concretización del derecho a la razonable duración del procedimiento desde la perspectiva de la Corte Interamericana de Derechos Humanos.
Crítica de la comparación constitucional “ad hoc”
Authors: Carducci Michele 
Published: September 2016

Este artículo resume las características de los métodos de comparación constitucional, que prevalecen en el estudio de los fenómenos de globalización y derecho transnacional. La comparación de "casos" y "problemas", fundada sobre "dialogue" y "cross-fertilization", sin discutir de las "causas" de las diferencias en la fragmentación de los espacios jurídicos, produce una actitud intelectual de "praesumptio similitudinis" y de "talcualismo", que el autor define comparación "ad hoc", porque funcional a las condiciones geopolíticas y económicas preconcebidas y por ello perjudicial en la educación crítica del jurista global.
A aplicação do regime diferenciado de contratações (RDC) aos megaeventos no Direito Administrativo contemporâneo
Authors: Silva Lucas Do Monte , Guimarães Patrícia Borba Vilar 
Published: September 2016

O presente trabalho visa abordar a aplicação do Regime Diferenciado de Contratações Públicas (RDC) aos megaeventos desportivos, a partir da suposta inadequação aos pressupostos do Direito Administrativo Contemporâneo. A abordagem focou na transparência, fazendo um paralelo com o princípio da moralidade, e a governança, com influência do princípio da eficiência, ambos, sobretudo, de acordo com a ótica da Constituição Federal de 1988. Dessa forma, por meio de pesquisa bibliográfica e do método hipotético-dedutivo, buscou-se investigar aspectos inovadores do RDC, a partir de i) Contratação integrada; ii) Remuneração variável; iii) Inversão de fases; iv) Sigilo inicial do orçamento. Analisou-se a experiência da utilização do RDC nas obras contratadas sob esse regime, tendo como estudos de caso os empreendimentos dos aeroportos previstos no conjunto da Matriz de Responsabilidade para a Copa do Mundo FIFA 2014.
O primeiro passo na Grande Marcha: legislação e prática do Governo Aberto à Informação (GAI) na China
Authors: Ming’na Jiang , Daoming Tan 
Published: September 2016

O artigo em referência tem como tema central os aspectos legais e práticos do denominado “Governo Aberto à Informação (GAI)” na China. O texto demonstra as dificuldades de implementação e desenvolvimento de uma questão que se encontra no núcleo das preocupações do governo chinês: a tentativa de abandonar seu modelo de economia planificada, construindo governos mais transparentes, de modo a concretizar políticas de livre mercado. Nesse contexto, os autores se voltam ao desenvolvimento de conceitos basilares, como os de publicidade e informação, respeitadas as peculiaridades da realidade chinesa. Enfocam, ainda, as exceções que tais direitos comportam e suas limitações legais, identificando a falta de bases constitucionais claras como sua principal problemática. De todo modo, o artigo apresenta uma perspectiva atual e revisitada do direito à informação na China, pautada em casos práticos e em projeções futuras sobre os caminhos do governo aberto chinês.
Construção pragmático-sistêmica dos conceitos básicos do Direito Corruptivo: observações sobre a possibilidade do tratamento da corrupção como um ramo autônomo do Direito
Authors: Bitencourt Caroline Müller , Reck Janriê Rodrigues 
Published: September 2016

O problema que move este trabalho envolve a especulação sobre o que é identidade do Direito Corruptivo. A hipótese é a de que a identidade pode ser alcançada a partir das categorias de diferença, operação e sistema. Objetiva-se iniciar o processo reflexivo para o estabelecimento de trabalhos mais compreensivos futuramente. Em um primeiro momento será abordado como a matriz pragmático-sistêmica trabalho o problema da identidade para, em seguida, demarcar, de modo especulativo, os limites do Direito Corruptivo.