bluuebunny/crossref_metadata_2025 huggingface dataset:
Numéro 125 - juillet 2016
Authors: Attanasi Gautier , Bagdziunas Rytis , Bodart Vincent , Fontenay Sébastien , Lutgen Vanessa , Ounnas Alexandre
Published: May 2019

Après avoir fortement ralenti en début d’année, la croissance de l’économie belge devrait se renforcer sur la période de projection. Elle resterait cependant modérée. D’une part, les difficultés économiques de nombreux pays émergents ainsi que l’adoption par la Chine d’un nouveau modèle de croissance ont pour effet de freiner la croissance de l’économie mondiale et des échanges internationaux. D’autre part, l’incertitude sur les perspectives économiques reste forte, ce qui incite les ménages et les entreprises à maintenir des comportements de dépense prudents. En 2016, la croissance du PIB belge resterait limitée à 1,3 %. En considérant que les facteurs de freinage devraient progressivement être moins actifs, elle se hisserait à 1,6 % en 2017.
Notes on the Unconditional Convergence of Multidimensional Functional Series
Authors: Bareladze G.
Published: May 2019

The convergence of a multidimensional functional series essentially depends on the way its partial sums are formed. Different ways of definition of partial sums lead to different kinds of convergence. In the paper relations between various kinds of unconditional almost everywhere convergence of multidimensional functional series are studied.
On One Class of Spatial Nonlocal Problems for Some Hyperbolic Equations
Authors: Avalishvili G. , Gordeziani D.
Published: May 2019

This paper deals with nonclassical initial boundary value problems for string oscillation and telegraph equations. Algorithms for a direct construction of solutions are proposed. The existence and uniqueness of a solution of a nonlocal boundary value problem is proved in the case of a general one-dimensional hyperbolic equation.
Upper and Lower Solutions of Boundary Value Problems for Functional Differential Equations and Theorems on Functional Differential Inequalities
Authors: Hakl R. , Kiguradze I. , Půža B.
Published: May 2019

Sufficient conditions are found for the existence of an upper and a lower solutions of the boundary value problem

where and are linear bounded operators, and and are continuous, generally speaking nonlinear, operators. Kamke type theorems are proved on functional differential inequalities.
Some Fixed Point Theorems in Metrically Convex Spaces
Authors: Khan M. S. , Pathak H. K. , Khan M. D.
Published: May 2019

A fixed point theorem is proved in a complete metrically convex metric space. Our result generalizes the theorems of Assad [Tamkang J. Math. 7: 91–94, 1976] and Chatterjea [C.R. Acad., Bulgare Sci. 25: 727–730, 1972].
Oscillation of the Riemann–Weber Version of Euler Differential Equations with Delay
Authors: Sugie Jitsuro , Iwasaki Mitsuru
Published: May 2019

Our concern is to consider delay differential equations of Euler type. Necessary and sufficient conditions for the oscillation of solutions are given. The results extend some famous facts about Euler differential equations without delay.
Uniform Convergence of N-Dimensional Trigonometric Fourier Series
Authors: Goginava U.
Published: May 2019

We establish the conditions for the partial moduli of continuity, which guarantee the uniform convergence of N-dimensional trigonometric Fourier series of the functions of the so called generalized partial bounded p-variation.
On Generalized Sklyanin Algebras
Authors: Khimshiashvili G. , Przybysz R.
Published: May 2019

A class of algebraic Poisson structures on R
4 is introduced which contains the well-known Sklyanin algebras. For this class, an effective algebraic method of computing Euler characteristics of Casimir levels is developed which enables us to compute them in the case of Sklyanin algebras. It is also shown that one may associate a finite graph with every generalized Sklyanin algebra. Some related results and open problems are also presented.
Increased aggressive behavior among youth in the United States who have experienced multiple forms of victimization
Authors: Pham Tammy B. , Muthiah Nallammai , Adesman Andrew
Published: May 2019

Objective

Victims of peer aggression, categorized broadly as face-to-face aggression (FA) and/or cyber-aggression (CA), are themselves at elevated risk for perpetrating aggressive behavior against others. Studies to date have not formally examined whether experiencing multiple forms of FA or CA is associated with even further increased likelihood of aggressive behavior towards others.

Methods

Data from the 2014 National Survey of Children’s Exposure to Violence III were analyzed for youth aged 10–17. Based on self-report responses regarding past-year experience, two broad victimization categories were defined: FA (verbal/relational aggression and/or physical assault/intimidation and/or property victimization) and CA (Internet harassment and/or cell-phone harassment). Logistic regression adjusting for age, sex and race/ethnicity compared victim sub-groups against corresponding non-victims with respect to self-report of aggressive behaviors towards others.

Results

The sample (n = 1959) was 51.3% male and 77.5% White; 39.6% reported >1 form of FA and 7.9% reported >1 form of CA. Whereas victims of physical assault/intimidation or property damage were more likely than non-victims to perpetrate aggression [adjusted odds ratio (aOR) = 4.44 and 5.17, respectively), victims of both were strikingly at greatest risk (aOR = 20.29). Similarly, victims of Internet harassment or cell-phone harassment were more likely than non-victims to perpetrate aggression (aORs = 6.18 and 9.40, respectively), while victims of both were even more likely (aOR = 15.32). Students who experienced >1 form of both FA and CA were the most likely to engage in aggressive behaviors (aOR = 38.03).

Conclusion

Victims of multiple forms of FA or CA are more likely to perpetrate aggression compared to non-victims and those victimized in fewer ways.
Kinetics of silver photodiffusion into amorphous S-rich germanium sulphide – neutron and optical reflectivity
Authors: Sakaguchi Yoshifumi , Asaoka Hidehito , Mitkova Maria
Published: May 2019

Silver photodiffusion is one of the attractive photo-induced changes observed in amorphous chalcogenides. In this research, we focus on amorphous S-rich germanium sulphide and study the kinetics of the silver photodiffusion by neutron reflectivity, as well as optical reflectivity. It was found from the neutron reflectivity profiles with 30 s time resolution that silver dissolved into the germanium sulphide layer, forming a metastable reaction layer between the Ag and the germanium sulphide layers, within 2 min of light exposure. Subsequently, silver slowly diffused from the metastable reaction layer to the germanium sulphide host layer until the Ag concentration in both layers became identical, effectively forming one uniform layer; this took approximately 20 min. Optical reflectivity reveals the electronic band structure of the sample, complementary to neutron reflectivity. It was found from the optical reflectivity measurement that the metastable reaction layer was a metallic product. The product could be Ag8GeS6-like form, which is regarded as the combination of GeS2 and Ag2S, and whose backbone is composed of the GeS4 tetrahedral units and the S atoms. We attribute the first quick diffusion to the capture of Ag ions by the latter S atoms, which is realised by the S–S bond in amorphous S-rich germanium sulphide, while we attribute the second slow diffusion to the formation of the Ag–Ge–S network, in which Ag ions are captured by the former GeS4 tetrahedral units.
Mein Bauch gehört uns. Gynisierung und Symmetrisierung der Elternschaft bei schwangeren Paaren
Authors: Hirschauer Stefan
Published: May 2019

Der Beitrag sucht nach neuen Konzepten und sozialen Mechanismen zur Erklärung der Retraditionalisierung von Paarbeziehungen in der Familiengründung und berichtet zentrale Ergebnisse einer qualitativen Studie zur Paardynamik während der Schwangerschaft. Er identifiziert u. a. berufs- und familienbiografische Pfadabhängigkeiten sowie stille weibliche Besetzungen und männliche Delegationen von Elternschaft. Als ein Schlüsselmechanismus erweist sich die Umwidmung der Altersdifferenz im Verlauf von Paarbeziehungen. Konzeptuell plädiert der Beitrag für eine Ersetzung des Begriffs der Retraditionalisierung durch den der Gynisierung von Schwangerschaft und Elternschaft, der weder die Erwerbstätigkeit als Lebenszentrum noch die Geschlechterdifferenz als fraglose Gegebenheit voraussetzt. Ziel dieser Rekonzeptualisierung ist es, das erstaunlich beharrliche Phänomen theoretisch befremden zu können, dass Elternschaft ein dominant weibliches Geschlecht hat.
Einkommensunterschiede zwischen alleinerziehenden und verheirateten Müttern 1997–2015. Eine detaillierte Effekt-Dekomposition
Authors: Neuberger Franz , Schutter Sabina , Preisner Klaus
Published: May 2019

In diesem Beitrag wird untersucht, wie sich das bedarfsgewichtete Pro-Kopf-Einkommen in Haushalten Alleinerziehender mit Kindern im Vergleich zu entsprechenden Haushalten mit verheirateten Eltern im Zuge der arbeits-, familien- und sozialpolitischen Reformen seit 1997 vor und nach staatlicher Umverteilung verändert hat. Zweitens wird mit Effekt-Dekompositionen analysiert, inwieweit Veränderungen der Einkommenssituation von alleinerziehenden und verheirateten Müttern auf Veränderungen ihrer Merkmale und deren Auswirkungen zurückgeführt werden können. Die Analysen basieren auf 19 Wellen des Sozio-ökonomischen Panels (SOEP) von 1997 bis 2015. Während das bedarfsgewichtete Netto-Pro-Kopf-Einkommen von alleinerziehenden Müttern auch dank staatlicher Transfer weitgehend unverändert geblieben ist, hat sich die Einkommenssituation von verheirateten Müttern vor allem aufgrund ihres steigenden Bildungsniveaus und ihrer gestiegener Erwerbstätigkeit verbessert. Die zunehmende Einkommensungleichheit zwischen beiden Familienformen kann demnach auf die zunehmend besseren Bildungsressourcen und die gesteigerte Arbeitsmarktaktivität verheirateter Mütter zurückgeführt werden, wohingegen Alleinerziehende vermehrt auf Sozialleistungen angewiesen waren.
Snowpack measurements suggest role for multi-year sea ice regions in Arctic atmospheric bromine and chlorine chemistry
Authors: Peterson Peter K. , Hartwig Mark , May Nathaniel W. , Schwartz Evan , Rigor Ignatius , Ermold Wendy , Steele Michael , Morison James H. , Nghiem Son V. , Pratt Kerri A.
Published: May 2019

As sources of reactive halogens, snowpacks in sea ice regions control the oxidative capacity of the Arctic atmosphere. However, measurements of snowpack halide concentrations remain sparse, particularly in the high Arctic, limiting our understanding of and ability to parameterize snowpack participation in tropospheric halogen chemistry. To address this gap, we measured concentrations of chloride, bromide, and sodium in snow samples collected during polar spring above remote multi-year sea ice (MYI) and first-year sea ice (FYI) north of Greenland and Alaska, as well as in the central Arctic, and compared these measurements to a larger dataset collected in the Alaskan coastal Arctic by Krnavek et al. (2012). Regardless of sea ice region, these surface snow samples generally featured lower salinities, compared to coastal snow. Surface snow in FYI regions was typically enriched in bromide and chloride compared to seawater, indicating snowpack deposition of bromine and chlorine-containing trace gases and an ability of the snowpack to participate further in bromine and chlorine activation processes. In contrast, surface snow in MYI regions was more often depleted in bromide, indicating it served as a source of bromine-containing trace gases to the atmosphere prior to sampling. Measurements at various snow depths indicate that the deposition of sea salt aerosols and halogen-containing trace gases to the snowpack surface played a larger role in determining surface snow halide concentrations compared to upward brine migration from sea ice. Calculated enrichment factors for bromide and chloride, relative to sodium, in the MYI snow samples suggests that MYI regions, in addition to FYI regions, have the potential to play an active role in Arctic boundary layer bromine and chlorine chemistry. The ability of MYI regions to participate in springtime atmospheric halogen chemistry should be considered in regional modeling of halogen activation and interpretation of satellite-based tropospheric bromine monoxide column measurements.
Phosphaturic mesenchymal tumors among elderly patients: a case report and review of literature
Authors: Adnan Zaina , Nikomarov David , Weiler-Sagie Michal , Roguin Maor Noga
Published: May 2019

Phosphaturic mesenchymal tumor (PMT) represents a rare cause of osteomalacia. The clinical signs and symptoms are vague and these lead to diagnosis delay. In the presence of hypophosphatemia and relatively high urine phosphate excretion, this entity should be taken into consideration in the deferential diagnosis of osteomalacia. In the present article, we report 81-year-old man presented to our clinic for evaluation due to osteopenia. His laboratory results disclosed hypophosphatemia, relatively increased urine phosphate excretion and increased level of intact fibroblast growth factor 23 (FGF23). A 68Gallium DOTATATE PET/CT revealed pathological uptake in the upper aspect of the left shoulder adjacent to the coracoid process. For suspected PMT a wide resection of the tumor was performed and pathological findings were consistent for PMT. Laboratory tests were normalized postoperatively. Reviewing the literature, we had identified 33 reported cases of PMTs among elderly patients age ≥70 years. Unlike previously reported data, where tumors predominantly localized in the lower extremities and pelvis, our search disclosed a high rate of tumor localization (10 cases – 33.3%) in the head with equal number of tumors (14 cases – 42.4%) localized in the head and upper extremity as well as in pelvis and lower extremity. The present case describes unique tumor localization in an elderly patient and our literature search demonstrated for the first time a high rate of tumor localization in the head among this group of patients.

Learning points:

PMTs represent a rare entity that should be considered in the differential diagnosis of elderly patients presented with persistent hypophosphatemia.

Unlike previously reported data, head and neck tumor localization is frequent among elderly patients.

68Gallium-conjugated somatostatin peptide analogs, such as 68Ga-DOTATATE PET/CT demonstrated the greatest sensitivity and specificity for tumor localization in patients with phosphaturic mesenchymal tumors (PMTs).

Wide tumor resection using intraoperative ultrasound is of major importance in order to ensure long-term cure.
Quantitative Comparison of the Anterior-Posterior Patterning System in the Embryos of FiveDrosophilaSpecies
Authors: Wunderlich Zeba , Fowlkes Charless C , Eckenrode Kelly B , Bragdon Meghan D J , Abiri Arash , DePace Angela H
Published: May 2019

Complex spatiotemporal gene expression patterns direct the development of the fertilized egg into an adult animal. Comparisons across species show that, in spite of changes in the underlying regulatory DNA sequence, developmental programs can be maintained across millions of years of evolution. Reciprocally, changes in gene expression can be used to generate morphological novelty. Distinguishing between changes in regulatory DNA that lead to changes in gene expression and those that do not is therefore a central goal of evolutionary developmental biology. Quantitative, spatially-resolved measurements of developmental gene expression patterns play a crucial role in this goal, enabling the detection of subtle phenotypic differences between species and the development of computations models that link the sequence of regulatory DNA to expression patterns. Here we report the generation of two atlases of cellular resolution gene expression measurements for the primary anterior-posterior patterning genes in Drosophila simulans and Drosophila virilis. By combining these data sets with existing atlases for three other Drosophila species, we detect subtle differences in the gene expression patterns and dynamics driving the highly conserved axis patterning system and delineate inter-species differences in the embryonic morphology. These data sets will be a resource for future modeling studies of the evolution of developmental gene regulatory networks.
Genetically Distinct Behavioral Modules Underlie Natural Variation in Thermal Performance Curves
Authors: Stegeman Gregory W , Baird Scott E , Ryu William S , Cutter Asher D
Published: May 2019

Thermal reaction norms pervade organismal traits as stereotyped responses to temperature, a fundamental environmental input into sensory and physiological systems. Locomotory behavior represents an especially plastic read-out of animal response, with its dynamic dependence on environmental stimuli presenting a challenge for analysis and for understanding the genomic architecture of heritable variation. Here we characterize behavioral reaction norms as thermal performance curves for the nematode Caenorhabditis briggsae, using a collection of 23 wild isolate genotypes and 153 recombinant inbred lines to quantify the extent of genetic and plastic variation in locomotory behavior to temperature changes. By reducing the dimensionality of the multivariate phenotypic response with a function-valued trait framework, we identified genetically distinct behavioral modules that contribute to the heritable variation in the emergent overall behavioral thermal performance curve. Quantitative trait locus mapping isolated regions on Chromosome II associated with locomotory activity at benign temperatures and Chromosome V loci related to distinct aspects of sensitivity to high temperatures, with each quantitative trait locus explaining up to 28% of trait variation. These findings highlight how behavioral responses to environmental inputs as thermal reaction norms can evolve through independent changes to genetically distinct modular components of such complex phenotypes.
How Caenorhabditis elegans Senses Mechanical Stress, Temperature, and Other Physical Stimuli
Authors: Goodman Miriam B , Sengupta Piali
Published: May 2019

Caenorhabditis elegans lives in a complex habitat in which they routinely experience large fluctuations in temperature, and encounter physical obstacles that vary in size and composition. Their habitat is shared by other nematodes, by beneficial and harmful bacteria, and nematode-trapping fungi. Not surprisingly, these nematodes can detect and discriminate among diverse environmental cues, and exhibit sensory-evoked behaviors that are readily quantifiable in the laboratory at high resolution. Their ability to perform these behaviors depends on <100 sensory neurons, and this compact sensory nervous system together with powerful molecular genetic tools has allowed individual neuron types to be linked to specific sensory responses. Here, we describe the sensory neurons and molecules that enable C. elegans to sense and respond to physical stimuli. We focus primarily on the pathways that allow sensation of mechanical and thermal stimuli, and briefly consider this animal’s ability to sense magnetic and electrical fields, light, and relative humidity. As the study of sensory transduction is critically dependent upon the techniques for stimulus delivery, we also include a section on appropriate laboratory methods for such studies. This chapter summarizes current knowledge about the sensitivity and response dynamics of individual classes of C. elegans mechano- and thermosensory neurons from in vivo calcium imaging and whole-cell patch-clamp electrophysiology studies. We also describe the roles of conserved molecules and signaling pathways in mediating the remarkably sensitive responses of these nematodes to mechanical and thermal cues. These studies have shown that the protein partners that form mechanotransduction channels are drawn from multiple superfamilies of ion channel proteins, and that signal transduction pathways responsible for temperature sensing in C. elegans share many features with those responsible for phototransduction in vertebrates.
Osteosarcoma “tipo osteoblastoma” de columna cervical. A propósito de un caso. [Osteoblastoma like osteosarcoma of the cervical spine]
Authors: Camino Willhuber Gastón , Kido Gonzalo , Estefan Martín , Mereles Maximiliano , Bassani Julio , Petracchi Matías , Sola Carlos , Gruenberg Marcelo
Published: May 2019

El osteosarcoma “tipo osteoblastoma”, una variante menos agresiva del osteosarcoma, es una enfermedad poco frecuente y representa un desafío diagnóstico tanto clínico como histopatológico. Se han publicado escasos reportes de casos de este tumor.Presentamos a un paciente de 16 años con un osteosarcoma “tipo osteoblastoma” localizado en la columna cervical. La biopsia ósea bajo tomografía reveló una lesión con un patrón de crecimiento permeativo, con sospecha de osteosarcoma “tipo osteoblastoma”. Se realizó una espondilectomía total en bloque mediante un doble abordaje. Se describen el caso clínico, la secuencia diagnóstica, la técnica quirúrgica y el seguimiento a 10 años. ABSTRACT Osteoblastoma-like osteosarcoma; a less aggressive variant of osteosarcoma;is a rare entity and represents a clinical and histopathological diagnostic challenge. We have found few reports of cases of this tumor in the literature. In this case we describe an osteoblastoma-like osteosarcoma located in the cervical spine in a 16-year-old patient. Tomography guided bone biopsy showed a lesion with a permeative growth pattern with suspicion of an osteoblastoma-like osteosarcoma. A total block spondylikectomy wasperformed through a double approach. We present the clinical case, the diagnostic sequence, the surgical technique and 10-year follow-up.
Registry of intra-articular hyaluronic acid in the treatment of knee osteoarthritis in Argentina
Authors: Berenstein Mario , Tacus Leonardo , Kobrinsky Pablo , Vaineras Daniel
Published: May 2019

Background: Intra-articular treatment of knee osteoarthrosis (OA) with hyaluronic acid (IA-HA) is frequently used in Argentina, with different dosing forms and injection regimens. Our main objective was to provide real world data on the use and effectiveness of IA-HAMethods: In this observational retrospective cohort study we studied 1227 patients with knee osteoarthrosis treated with IA-HA 20mg/2ml weekly (76%-20mg group) and 40mg/2ml (24%-40mg group) according to usual practice intervals. Follow up was at 6 months and efficacy assessed by 5 point Likert scale and 50% or more response rate.Results: Median number of applications was 5 (20mg) and 3 (40mg). Both groups had a significant improvement in the Likert scale from baseline to 6 month. Median score improved from 4 (mean 3.77 ±0.69) at baseline to median of 2 (mean 1.99 ±0.76) at 6 months (20mg group, p <0.001) and from median of 4 (mean 3.65 ±0.65) to median 2 (mean 1.86 ±0.72) in the 40mg group, p <0.001. Proportion of patients with 50% or more 6 month response were 61% and 66% respectively. In the multivariate analysis, 50% response rate was associated with higher baseline score, younger age and shorter duration of disease. Only 1 patient in the 20mg group (0.1%) experienced a serious treatment related adverse event (septic arthritis) following injection.Conclusion: Our study in common clinical practice supports the effectiveness of IA-HA in step management of knee OA with clinical benefit observed at 6 month follow up.
Plexos venosos plantares. Implicancia clínico-quirúrgica. [Venous plantar plexuses. Clinical-surgical implications]
Authors: Santamarta Laura , Loterzo Lidia Gabriela
Published: May 2019

En 1888, Lejars describió la suela venosa que lleva su nombre. Se trata de un entramado venoso dispuesto en la planta del pie, que involucra los bordes medial y lateral. Dicho autor la describió en forma indirecta, por transparencia, a través de una inyección de resina y negro humo. En esta actualización, se ofrece una descripción directa y detallada de la suela venosa de Lejars mediante inyección con látex (Butaclor), que permitió identificar claramente dos planos. Las disecciones se efectuaron en pies de adultos y en fetos a término. Este trabajo de investigación anatómica pretende demostrar en forma objetiva la existencia de una malla venosa única que resulta imprescindible para la función hidráulica, sobre todo, del talón posterior del pie como centro de apoyo y marcha. Asimismo, se describen las incisiones quirúrgicas más idóneas para el abordaje de afecciones que comprometen dicho entramado. ABSTRACT In 1888, Lejars described the vein sole that bears his name. It is a venous network arranged on the sole of the foot, which involves the medial and lateral borders. Said author described it indirectly, by transparency, through an injection of resin and black smoke. In this update, a direct and detailed description of the Lejars venous sole is offered by injection with latex (Butachlor), which clearly identified two planes. The dissections were performed on adult feet and full-term fetuses. This work of anatomical research aims to demonstrate objectively the existence of a single venous mesh that is essential for hydraulic function, especially the posterior heel of the foot as a support and walking center. Likewise, the most appropriate surgical incisions are described for the treatment of conditions that compromise this network.
Instrucción Ortopédica de Posgrado - Imágenes. Resolución del caso.
Authors: Ghisi Juan Pablo , Schneebeli Guillermo , Lamanna Agostina
Published: May 2019

Se presenta la discusion sobre ligamentoplastia, tecnica y metodos de imagen para valorarla.
Aproximación a las territorialidades múltiples en espacios rururbanos. Indagaciones sobre horticultores en Santa Fe, Argentina
Authors: Cardoso María Mercedes
Published: May 2019

La multiterritorialidad es la vivencia de varios territorios en simultáneo, implica una construcción histórica y social de los mismos, cuyo espacio resultante es un híbrido entre sociedad y naturaleza, materialidad e idealidad. A través de una metodología de carácter mixto (cualitativa y cuantitativa), el artículo da cuenta de cómo los migrantes de origen boliviano asentados en el rururbano norte de la ciudad de Santa Fe, Argentina, construyen territorialidades múltiples. En dicha construcción cuentan: los procesos que intervienen en el fenómeno de reterritorialización de esta población; las dimensiones del territorio que priman en los diferentes momentos de su construcción histórica; y las formas que se pueden reconocer hoy en dicho territorio. Allí, la pluriactividad y la neorruralidad emergen como nuevas categorías teóricas y como experiencias que explican las estrategias para afrontar los conflictos, abonando a la perspectiva de la hibridez y posibilitando una aproximación al descubrimiento de la morfología de ese territorio.
Modelação de sistemas de abastecimento de água. O caso de Ilha da Madeira
Authors: Lousada Sérgio , Silva Pedro Soares da , Castanho Rui Alexandre , Naranjo-Gómez José Manuel
Published: May 2019

A temática da insuficiência de água disponível para consumo é essencial no debate social devido à importância natural deste recurso e às previsões de aumentos exponenciais demográficos, o que introduziu uma maior pressão sobre o ciclo deste recurso finito e essencial para a manutenção do equilíbrio natural. A infraestrutura responsável pela sua distribuição deve ser concebida, mantida e explorada eficazmente. Este estudo aborda a modelação e a calibração digital desta tipologia de infraestruturas, recorrendo a um software da especialidade, aplicando-o a um caso prático: concelho de Câmara de Lobos, na Ilha da Madeira (Portugal). Através deste estudo e da análise do modelo foi possível verificar as elevadas perdas no sistema de distribuição, além das causas, i.e, elevadas pressões e velocidades a que estão sujeitas as componentes da rede, devido à orografia da ilha da Madeira.O estudo aborda a modelação e calibração digital desta tipologia de infraestruturas, recorrendo a um software da especialidade, aplicando-o a um caso prático - concelho de Câmara de Lobos, Ilha da Madeira - Portugal. Através de uma metodologia exploratória, foram analisadas questões inerentes às referidas infraestruturas e softwares de modelação. Tal abordagem permitiu a construção de um modelo de verificação.Através do estudo e análise do modelo é possível verificar as elevadas perdas no sistema de distribuição bem como as suas causas - elevadas pressões e velocidades a que estão sujeitos os componentes da rede, devido à orografia particular da ilha da Madeira.
Parra, Lisímaco. “Filosofía versus barroco en la Fundamentación de la metafísica de las costumbres de Kant”.
Authors: González Leonardo
Published: May 2019

Parra, Lisímaco. “Filosofía versus barroco en la Fundamentación de la metafísica de las costumbres de Kant.” La filosofía práctica de Kant. Comps. Roberto R. Aramayo y Faviola Rivera Castro. Ciudad de México; Bogotá: Universidad Autónoma de México; Universidad Nacional de Colombia, 2017. 19-54.
Monte Carlo tree search for materials design and discovery
Authors: Dieb Thaer M. , Ju Shenghong , Shiomi Junichiro , Tsuda Koji
Published: May 2019

Materials design and discovery can be represented as selecting the optimal structure from a space of candidates that optimizes a target property. Since the number of candidates can be exponentially proportional to the structure determination variables, the optimal structure must be obtained efficiently. Recently, inspired by its success in the Go computer game, several approaches have applied Monte Carlo tree search (MCTS) to solve optimization problems in natural sciences including materials science. In this paper, we briefly reviewed applications of MCTS in materials design and discovery, and analyzed its future potential.
Residential segregation and ethnolinguistic variation
Authors: Duncan Daniel
Published: May 2019

One oft-hypothesized cause of ethnolinguistic variation is residential segregation. This review article synthesizes several strands of variationist sociolinguistic research, particularly among whites and African Americans in the United States, to show that the degree of residential segregation in a space does indeed have a strong effect on patterns of ethnolinguistic variation. In highly segregated spaces, ethnic groups diverge in their use of linguistic features, while in less segregated spaces, groups converge. Meanwhile, literature on housing policy indicates that residential segregation results from state influence. That residential segregation conditions patterns of variation thus entails that housing policy plays a role in this conditioning. This suggests that housing policy constitutes indirect language policy, in contrast to explicit policies which refer to some aspect of language use (media, education, etc.). In this situation, state efforts to separate ethnic groups have an indirect impact on the appearance of ethnolinguistic variation. Further research into the interface of language policy and variationist sociolinguistics is necessary, as housing policy carries clear links to variationist sociolinguistic theory.
Environments of upper miocene sediments in the Hanoi depression interpreted from grain-size parameters
Authors: Tan Mai Thanh , Thuan Dinh Van , Dy Nguyen Dich , Tao Nguyen Van , Luong Le Duc , Ha Trinh Thi Thanh , Dao Ngo Thi
Published: May 2019

The grain-size analysis is carried out for 49 samples of Upper Miocene sediments taken from three boreholes in the Hanoi depression. The statistic parameters of the grain size distributions such as percentiles, median, graphic mean, sorting or inclusive graphic standard deviation, inclusive graphic skewness, and graphic kurtosis are used to decipher the depositional environments and transportation mechanisms of sediments. Bivariate plotting of these parameters, the discriminant functions with four basic parameters of graphics mean, sorting, inclusive graphic skewness and graphic kurtosis, and the CM pattern with the one percentile (C) and median (M) diameters are applied for this determination. The plots of graphics mean versus sorting suggest 14% of samples being the sand sheet, 46% related to rivers and 40% of the estuarine environment. The sorting - inclusive graphic skewness plot shows a river-related environment for all samples. Linear discriminant functions show the sandstone of upper Miocene in Hanoi depression are deltaic sediments formed in unstably transporting and depositional environment, impacted by turbidity current in the coastal river-mouth. The CM pattern shows sediment transportation for most of the samples in three modes: rolling, suspension and rolling, and uniform suspension. The environmental dynamics are relatively complex and change over time.
Para Além do Capitalismo Neoliberal: As Alternativas Políticas
Authors: Araujo Cicero , Bresser-Pereira Luiz Carlos
Published: May 2019

RESUMO O artigo discute a crise do capitalismo neoliberal e as alternativas que se abrem a partir dela. Para tanto, propõe um contraste entre duas formas de coordenar as instituições do capitalismo – o liberalismo econômico e o desenvolvimentismo – e o conceito de “coalizão de classe” para entender os diferentes modos de sua sustentação social e política. Como parte do contraste tem em vista o fato histórico da globalização, o texto submete-o a uma revisão crítica, para acentuar sua dimensão geopolítica. Isso permite analisar, de uma maneira que os autores consideram mais interessante, a crise do capitalismo desenvolvimentista dos “anos dourados” do pós-guerra e as razões do advento do domínio neoliberal. Por fim, levando em conta a emergência de uma alternativa regressiva à crise contemporânea – o chamado “populismo de direita” –, o artigo examina as possibilidades e limites de uma alternativa desenvolvimentista, democrática e social compatível com o processo de globalização.
Os Ciclos Político-Econômicos e os Gastos dos Estados no Brasil: 1995-2013
Authors: Guerra Daniel , Paixão Adriano Nascimento da , Leite Filho Paulo Amilton Maia
Published: May 2019

RESUMO O objetivo deste trabalho é verificar se existem evidências empíricas de Ciclos Político-Econômicos para os governos estaduais do Brasil, analisando-se as políticas fiscais e os resultados eleitorais no período de 1995 a 2013. Busca-se averiguar se os governos estaduais manipulam os gastos públicos como medida de sinalizar competência diante dos eleitores para com isso ampliar as chances de vitória eleitoral do governante/partido no poder. Secundariamente será verificado se os gastos são afetados por razões ideológico-partidárias. Foi utilizado como referencial teórico os postulados propostos na Teoria de Ciclos Políticos Econômicos assentados fundamentalmente por Nordhaus (1975), Rogoff (1990), Hibbs (1977) e Alesina (1987). Os resultados evidenciaram a presença de CPE nos gastos públicos a nível estadual no Brasil, seguindo, em termos gerais, os pressupostos delineados pelo modelo oportunista. Os gastos públicos são ampliados nos anos eleitorais em comparação com os demais anos dos mandatos, confirmando-se a hipótese adotada. A presença da influência do calendário eleitoral na evolução dos gastos públicos foi observada de forma mais contundente em algumas funções despesas específicas, quais sejam, despesas de capital, investimentos, obras e urbanismo. Observou-se que não há uma diferença importante que distinga grupos ideológicos na política fiscal dos Estados no Brasil.
Efeitos do programa de Nota Fiscal eletrônica sobre o aumento da arrecadação do Estado
Authors: Vieira Patrícia Araújo , Pimenta Daiana Paula , Cruz Alethéia Ferreira da , Souza Eliane Moreira Sá de
Published: May 2019

Resumo O objetivo deste artigo é verificar se a implantação do programa de Nota Fiscal eletrônica (NF-e) gerou como consequência algum incremento na arrecadação do Estado de Goiás. Para tanto, utilizaram-se testes de médias e estimação de regressões difference-in-differences. Os resultados indicaram que a média de arrecadação no Estado de Goiás é estatisticamente superior no período posterior à implantação da NF-e e que o aumento da arrecadação das empresas obrigadas a emitir NF-e foi maior do que o daquelas que não são obrigadas. Assim, apesar do foco principal da NF-e não ser o aumento da arrecadação, pode-se observar que a institucionalização de um programa para padronização e compartilhamento dos documentos fiscais incluiu melhorias nos processos de fiscalização da administração tributária, aumentando a arrecadação do Estado por meio da redução da inadimplência.
Factores explicativos de la preferencia y uso de la administración electrónica en España
Authors: Barrera-Barrera Ramón , Rey-Moreno Manuel , Medina-Molina Cayetano
Published: May 2019

Resumen En la actualidad, muchos gobiernos ofrecen a sus ciudadanos servicios públicos a través de internet (administración electrónica). En este trabajo se analizan tres factores que podrían explicar el uso de la administración electrónica: perfil sociodemográfico de los ciudadanos, niveles de calidad de los servicios públicos ofrecidos por ese medio y grado de satisfacción de los ciudadanos con esos servicios. Los resultados ponen de manifiesto que los ciudadanos que prefieren utilizar internet como medio de contacto o que utilizan la administración electrónica se caracterizan por ser personas jóvenes, con estudios universitarios o estudiantes. En cambio, las personas que no utilizan la administración electrónica o que prefieren el canal presencial son mayoritariamente personas mayores con estudios primarios. En segundo lugar, a pesar de que los ciudadanos perciban una alta calidad y tengan un alto grado de satisfacción con esos servicios públicos, esto no resulta en altas tasas de uso de la administración electrónica. Por último, para incrementar el uso de la administración electrónica es primordial la utilización de interfaces sencillas, intuitivas y fáciles de usar por cualquier persona, especialmente por personas mayores y con estudios primarios.
Retrospective analysis of computed tomography-guided percutaneous nephrostomies in cancer patients
Authors: Meira Marcio dos Santos , Barbosa Paula Nicole Vieira Pinto , Bitencourt Almir Galvão Vieira , Almeida Maria Fernanda Arruda , Tyng Chiang Jeng , Costa Maria Alice Freitas , Góes Ana Carolina de Ataíde , Chojniak Rubens
Published: May 2019

Abstract Objective: To establish an overview of computed tomography (CT)-guided percutaneous nephrostomy performed at a referral center for cancer, addressing the characteristics of patients submitted to this intervention, as well as the indications for it, the technical specificities of it, and its main complications. Materials and Methods: This was a retrospective study involving a review of the electronic medical records and images of patients submitted to CT-guided percutaneous nephrostomy at a referral center for cancer between 2014 and 2016. Results: A total of 201 procedures were evaluated. In most cases, the obstruction was caused by a malignant neoplasm. Complications occurred in 9.5% of the cases, and an additional intervention was required (typically for catheter repositioning) in 36.6%. Post-procedure complications were not found to be significantly associated with the type of previous cancer treatment, the technique used, the caliber of the drain used in the procedure, or the degree of dilatation of the collection system prior to the procedure. Conclusion: In cancer patients, CT-guided percutaneous nephrostomy is an effective treatment, with success rates and complication rates similar to those reported in the general population.
INFORMACIÓN BIOLÓGICA: ¿LA TEORÍA DE LA INFORMACIÓN ATACA DE NUEVO?
Authors: RUIZ MARÍA FERREIRA
Published: May 2019

Resumen La literatura filosófica ha ofrecido una serie de argumentos que buscan mostrar la inadecuación conceptual de la teoría de la información para capturar el modo como el concepto se usa en biología molecular. A partir de éstos, se llegó a cierto consenso de que si acaso hay alguna forma de explicar y defender el concepto de información en biología molecular, la estrategia debe ser otra, y el debate continuó principalmente persiguiendo alternativas. Sin embargo, algunos aportes recientes parecen desafiar el consenso y revigorar la discusión en torno a la relevancia de la teoría de la información en este contexto. El objetivo de este trabajo es analizar los argumentos que condujeron a dicho consenso y examinar en qué medida estas propuestas logran vindicar la apelación a la teoría de la información. Argumentaré que incluso la propuesta más refinada en esta línea falla en vindicar la estrategia teórico-informacional y que, como consecuencia, el consenso todavía puede ser defendido.
From classical developmentalism and post-Keynesian macroeconomics to new developmentalism
Authors: BRESSER-PEREIRA LUIZ CARLOS
Published: May 2019

ABSTRACT New developmentalism was a response to the inability of classical developmentalism and post-Keynesian macroeconomics in leading middle-income countries to resume growth. New developmentalism was born in the 2000s to explain why Latin American countries stopped growing in the 1980s, while East Asian countries continued to catch up. This paper compares new developmentalism with classical developmentalism, which didn’t have a macroeconomics, and with post-Keynesian economics, whose macroeconomics is not devoted to developing countries. And shows that to follow the East Asian example is not enough industrial policy, it is also necessary a macroeconomic policy that sets the five macroeconomic prices right, rejects the growth with foreign savings policy, and keeps the macroeconomic accounts balanced.
Conhecimento e uso de mecanismos para articulação clínica entre níveis em duas redes de atenção à saúde de Pernambuco, Brasil
Authors: Oliveira Cecylia Roberta Ferreira de , Samico Isabella Chagas , Mendes Marina Ferreira de Medeiros , Vargas Ingrid , Vázquez Maria Luisa
Published: May 2019

O artigo avalia o conhecimento e o uso dos mecanismos de articulação clínica entre níveis assistenciais em duas redes de atenção à saúde no Estado de Pernambuco, Brasil. Trata-se de estudo descritivo e transversal, do tipo inquérito. Foram entrevistados 381 médicos das redes públicas de saúde da atenção básica e atenção especializada dos municípios de Caruaru e Recife (Distritos Sanitários III e VII). Foi aplicado um questionário estruturado (COORDENA) para avaliar o conhecimento, frequência e características no uso dos seguintes mecanismos: formulário de referência e contrarreferência, resumo de alta, telefone e bilhetes (mecanismos de adaptação mútua), protocolos do Ministério da Saúde e sessões clínicas conjuntas (mecanismos de padronização). Os dados foram analisados por meio de frequências simples, médias e percentuais. De modo geral, os médicos da atenção básica conhecem e utilizam mais os mecanismos que os médicos da atenção especializada. Na comparação entre redes, Recife apresentou os melhores resultados. Os formulários de referência e contrarreferência foram os mais usados (61,4%) e as sessões clínicas conjuntas as de menor uso (8,6%), além da existência de mecanismos informais (telefone 58%, bilhete 56,6%, WhatsApp 2,6%). A subutilização dos mecanismos, a divergência de informações no envio e recebimento entre os profissionais da atenação básica e atenção especializada, e o uso inadequado dos mesmos sugerem falhas na comunicação entre os profissionais e entre os níveis de atenção. Os achados revelam a necessidade de investimentos que propiciem o conhecimento, a comunicação e a colaboração entre profissionais, contribuindo para uma melhor articulação entre os diferentes níveis assistenciais.
EVALUATING MMP-2 AND TGFß-RI EXPRESSION IN CIRCULATING TUMOR CELLS OF PANCREATIC CANCER PATIENTS AND THEIR CORRELATION WITH CLINICAL EVOLUTION
Authors: GASPARINI-JUNIOR José Luiz , FANELLI Marcello Ferretti , ABDALLAH Emne Ali , CHINEN Ludmilla Thomé Domingos
Published: May 2019

ABSTRACT Background: Metastasis is common in the diagnosis of pancreatic cancer, and the presence of epithelial-mesenchymal transition markers in circulating tumor cells may suggest worse prognosis. Aim: To correlate the number of circulating tumor cells (CTCs) in the peripheral blood of patients with a locally advanced or metastatic pancreatic tumor and the protein expression involved in epithelial-mesenchymal transition (EMT) in CTCs with clinical characteristics, progression-free survival (PFS) and overall survival (OS). Method: This was a prospective study conducted using peripheral blood samples collected at three different times. CTCs were quantified by the ISET test and analyzed by immunocytochemistry. Proteins involved in EMT (vimentin, TGFß-RI and MMP2) were analyzed in all CTCs. Results: Twenty-one patients were included. Median CTCs detected were 22, 20 and 8 CTCs/8 ml blood at baseline, first and second follow-up, respectively. No statistically significant correlation was found in correlating the number of CTCs and the evaluated clinical characteristics, PFS, or OS. There was no difference in PFS and OS among the EMT markers in the groups with and without markers. Conclusion: CTC analysis was not relevant in this sample for comparing clinical findings, PFS and OS in patients with pancreatic cancer. However, marker analysis in CTCs could be useful for the MMP-2 and/or TGFß-RI expression, as observed by the separate PFS curve.
Mineral composition, histomorphometry, and bone biomechanical properties are improved with probiotic, prebiotic, and symbiotic supplementation in rats chronically exposed to passive smoking: a randomized pre-clinical study
Authors: Tribst Marcelo Fernandes , Magalhães Leticia Rocha , Silva Ricardo Augusto , Caetano Heliard Rodrigues dos Santos , Oliveira Weber Gutemberg Alves de , Rufino Marcos Natal , Keller Rogéria , Sanches Osimar de Carvalho , Louzada Mario Jefferson Quirino , Bremer-Neto Hermann
Published: May 2019

ABSTRACT: Cigarette smoke in large centers is one of the most important causes of chronic inflammatory diseases in public health and is associated with a decrease in bone mass, consolidation process, and bone remodeling. Due to their ability to improve intestinal absorption and compete with pathogenic microorganisms, dietary supplementation with functional foods may contribute to improvement in bone quality. Therefore, the objective of this study was to evaluate the effects of functional, probiotic, prebiotic, or symbiotic food supplementation on mineral composition, histomorphometry, and bone biomechanical properties of rats in the growth phase, chronically exposed to cigarette smoke (T).Sixty-four young male rats were randomly assigned to eight groups (n=8): control (C) [standard diet (SD)]; probiotic (Pro) [SD + probiotic (Lactobacillus acidophilus, Enterococcus faecium, Bifidobacterium thermophilum and Bifidobacterium longum) (2-5 109 UFC each)]; prebiotic (Pre) [SD+ prebiotic (mannan oligosaccharide)]; symbiotic (Sym) (SD + probiotic + prebiotic); control smoking (SC) [(SD + exposure protocol to passive smoking (PS)]; probiotic smoking (ProS) (SD + probiotic + PS); prebiotic smoking (PreS) (SD + prebiotic + PS), and symbiotic smoking (SymS)(SD + prebiotic + probiotic + PS). The animals were euthanized after 189 days of the experimental protocol. Results showed that supplementation with probiotics, prebiotics, and symbiotics significantly improved (P<0.05) the parameters: P, Ca, Mg, BMD, BMC, strength, resilience, and size of area of the femoral diaphysis of the animals chronically exposed or not cigarette smoke. We concluded that functional food supplementation improved the bone health of rats chronically exposed or not to cigarette smoke.