bluuebunny/crossref_metadata_2025 huggingface dataset:
Computational evaluation of amplitude modulation for enhanced magnetic nanoparticle hyperthermia
Authors: Soetaert Frederik , Dupré Luc , Ivkov Robert , Crevecoeur Guillaume
Published: August 2015

Magnetic nanoparticles (MNPs) can interact with alternating magnetic fields (AMFs) to deposit localized energy for hyperthermia treatment of cancer. Hyperthermia is useful in the context of multimodality treatments with radiation or chemotherapy to enhance disease control without increased toxicity. The unique attributes of heat deposition and transfer with MNPs have generated considerable attention and have been the focus of extensive investigations to elucidate mechanisms and optimize performance. Three-dimensional (3D) simulations are often conducted with the finite element method (FEM) using the Pennes’ bioheat equation. In the current study, the Pennes’ equation was modified to include a thermal damage-dependent perfusion profile to improve model predictions with respect to known physiological responses to tissue heating. A normal distribution of MNPs in a model liver tumor was combined with empirical nanoparticle heating data to calculate tumor temperature distributions and resulting survival fraction of cancer cells. In addition, calculated spatiotemporal temperature changes were compared among magnetic field amplitude modulations of a base 150-kHz sinusoidal waveform, specifically, no modulation, sinusoidal, rectangular, and triangular modulation. Complex relationships were observed between nanoparticle heating and cancer tissue damage when amplitude modulation and damage-related perfusion profiles were varied. These results are tantalizing and motivate further exploration of amplitude modulation as a means to enhance efficiency of and overcome technical challenges associated with magnetic nanoparticle hyperthermia (MNH).
Three-Dimensional CFD Simulation of a “Steam Water Spray” Retort Process for Food Vegetable Products
Authors: Mosna David , Vignali Giuseppe
Published: August 2015

This work aims at simulating a retort sterilization process of flexible packaging, performed in autoclave. ANSYS CFD© software has been used in this study to simulate the heat transfer inside the retort chamber. Flexible packaging filled with a pumpkin soup has been modelled. Three-dimensional (3D) geometrical configuration of the equipment has been designed and then simulated to evaluate the sterilization level achieved by each packaging inside the retort chamber. In particular, the internal temperature of the product situated in the cold spot of the chamber has been monitored during 5 min of the process (after reaching 85°C inside the product) in order to monitor the time/temperature trend. Experimental tests have been finally performed to validate the simulation model of heat exchange. The sterilization process takes place in a retort chamber by means of “overheated water sprayed” at 403 K and a pressure of 5 atm. Results show a good agreement between the simulated results and the real retort process and confirm the potential value of the simulation model to evaluate the process performance.
Rapid-onset obesity with hypothalamic dysfunction, hypoventilation, and autonomic dysregulation syndrome and celiac disease in a 13-year-old girl: further evidence for autoimmunity?
Authors: Cemeroglu Ayse Pinar , Eng Donna S. , Most Laura A. , Stalsonburg Carrissa M. , Kleis Lora
Published: August 2015

Rapid-onset obesity with hypothalamic dysfunction, hypoventilation, and autonomic dysregulation (ROHHAD) syndrome is a rare and potentially lethal disorder. The etiology is unclear but paraneoplastic syndrome and autoimmunity secondary to neural crest tumors have been considered, even in patients without any detectable tumor due to their tendency for spontaneous remission. We are presenting a 13-year-old girl with ROHHAD syndrome and celiac disease, which may suggest further evidence for immune-mediated etiology in the pathogenesis of ROHHAD syndrome.
Association between decreased plasma levels of soluble human leukocyte antigen-G and severe pre-eclampsia
Authors: He Yingdong , Chen Shi , Huang He , Chen Qian
Published: August 2015

The aim of this study was to investigate the levels of different isoforms of soluble human leukocyte antigen-G (sHLA-G) in maternal plasma during early and late pregnancy, and to investigate the expression of sHLA-G isoforms in women with early or late-onset severe preeclampsia.

This prospective, nested, case-control study was performed in 24 early-onset severe preeclamptic, 34 late-onset severe preeclamptic, and 74 uncomplicated pregnant women. Plasma levels of sHLA-G1/5 were measured using ELISA.

Plasma sHLA-G1 levels in women with late-onset severe preeclampsia were markedly lower compared with normal controls (median: 0 vs. 1.22 ng/mL) at the first trimester, and plasma sHLA-G1 levels in women with early-onset severe preeclampsia were markedly lower compared with normal controls at the second (median: 0 vs. 1.24 ng/mL) and third (median: 0 vs. 1.34 ng/mL) trimesters. There was no difference between the late-onset and early-onset groups at three trimesters. As for sHLA-G5, there was no difference in concentrations among the three groups at any time point. However, compared with controls, more women with early- or late-onset severe preeclampsia had undetectable sHLA-G5 levels in the first (71.4% and 76.2% vs. 14.1%), second (75.0% and 73.3% vs. 19.0%), and third (100.0% and 70.4% vs. 14.8%, respectively) trimester (all P<0.05). sHLA-G1 levels in the first (odds ratio [OR]=0.254, 95% confidence interval [CI]=0.109–0.591, P=0.010), second (OR=0.315, 95% CI=0.158–0.627, P=0.001), and third (OR=0.170, 95% CI=0.054–0.533, P=0.002) trimester was a risk factor for severe preeclampsia.

Severe preeclampsia was associated with low/undetectable maternal plasma levels of sHLA-G. Low sHLA-G1 levels might be a risk marker for severe preeclampsia.
New distributional record of Chelemys megalonyx (Rodentia: Cricetidae) from the central valley of Chile, and some implications for its distribution and conservation
Authors: Bazán-León Enrique A. , Botero-Delgadillo Esteban , Venegas Cristóbal I. , Butler-Llanos Nasrim , Yáñez José L. , Torres-Mura Juan C. , Vásquez Rodrigo A.
Published: August 2015

We report a new locality for the rodent
Effect of viscosity reducing agent on the properties of CNT/epoxy nanocomposites
Authors: Al-Saleh Mohammed H. , Irshidat Mohammad R.
Published: August 2015

Epoxy nanocomposites that are produced in a solvent-free environment suffer from the inadequate dispersion of nanofiller and poor interfacial interaction between the nanofiller and polymer matrix. In this work, the effect of replacing a portion of the epoxy resin with a viscosity reducing agent (VRA) on the structure, electrical and mechanical properties of carbon nanotube (CNT)/epoxy nanocomposite have been investigated. Optical microscopy (OM) and transmission electron microscopy (TEM) were used to characterize the structure of the nanocomposite at the microscale and nanoscale, respectively. For nanocomposites without VRA, it was found that the addition of CNT degrades the tensile strength and toughness; meanwhile, it enhances the flexural modulus, Young’s modulus and electrical conductivity of the nanocomposite. However, the addition of VRA retained the tensile strength of the epoxy system and maintained the improvements in flexural strength and electrical conductivity that have been achieved due to CNT addition.
Radiolytical oxidation of gaseous iodine by beta radiation
Authors: Kärkelä Teemu , Auvinen Ari , Kekki Tommi , Kotiluoto Petri , Lyyränen Jussi , Jokiniemi Jorma
Published: August 2015

Iodine is one of the most radiotoxic fission product released from fuel during
a severe nuclear power plant accident. Within the containment building, iodine
compounds can react e.g. on the painted surfaces and form gaseous organic
iodides.

In this study, it was found out that gaseous methyl iodide (CH3I) is
oxidised when exposed to beta radiation in an oxygen containing atmosphere. As
a result, nucleation of aerosol particles takes place and the formation of
iodine oxide particles is suggested. These particles are highly
hygroscopic. They take up water from the air humidity and iodine oxides
dissolve within the droplets. In order to mitigate the possible source term,
it is of interest to understand the effect of beta radiation on the speciation
of iodine.
Pinus roxburghii plant needles as a three-season biomonitor for elemental air pollution monitoring along roadside
Authors: Daud Muhammad , Wasim Mohammad , Khalid Nasir , Waheed Shahida
Published: August 2015

The present study deals with the determination of 36 elements in Pinus roxburghii plant needles to assess their potential as
biomonitor for elemental air pollution monitoring. The elemental quantification was made by employing Instrumental Neutron Activation
Analysis (INAA) and Atomic Absorption Spectrometric (AAS) techniques. The needles of Pinus roxburghii were collected in
spring, summer and winter seasons from various sites in Islamabad. The method validation was performed by analyzing two certified
reference materials i.e., Citrus leaves – NIST-SRM-1572 and IAEA-Soil-7. Pollution level was assessed by using three indicators:
enrichment factor, pollution load index and average toxic element concentration. The results indicated that the needles of
Pinus roxburghii plant had potential to monitor the extent of air pollution in the vicinity of high traffic areas.
Correlation of diffusion MRI with the Ki-67 index in non-small cell lung cancer
Authors: Karaman Adem , Durur-Subasi Irmak , Alper Fatih , Araz Omer , Subasi Mahmut , Demirci Elif , Albayrak Mevlut , Polat Gökhan , Akgun Metin , Karabulut Nevzat
Published: August 2015

Background. The primary objective of the study was to evaluate the association between the minimum apparent diffusion coefficient (ADCmin) and Ki-67, an index for cellular proliferation, in non-small cell lung cancers. Also, we aimed to assess whether ADCmin values differ between tumour subtypes and tissue sampling method.

Methods. The patients who had diffusion weighted magnetic resonance imaging (DW-MRI) were enrolled retrospectively. The correlation between ADCmin and the Ki-67 index was evaluated.

Results. Ninety three patients, with a mean age 65 ± 11 years, with histopathologically proven adenocarcinoma and squamous cell carcinoma of the lungs and had technically successful DW-MRI were included in the study. The numbers of tumour subtypes were 47 for adenocarcinoma and 46 for squamous cell carcinoma. There was a good negative correlation between ADCmin values and the Ki-67 proliferation index (r = −0.837, p < 0.001). The mean ADCmin value was higher and the mean Ki-67 index was lower in adenocarcinomas compared to squamous cell carcinoma (p < 0.0001). There was no statistical difference between tissue sampling methods.

Conclusions. Because ADCmin shows a good but negative correlation with Ki-67 index, it provides an opportunity to evaluate tumours and their aggressiveness and may be helpful in the differentiation of subtypes non-invasively.
River dynamics and invasion: distribution patterns of native and invasive woody vegetation at the Río Negro, Argentina
Authors: Thomas Lisa K. , Mosner Eva , Leyer Ilona
Published: August 2015

Salicaceae are typical invaders of riparian ecosystems throughout the world and they have the potential to change much of the invaded habitats. Along Patagonian streams, riparian softwood forests composed of non-native Salicaceae are increasing in abundance, area and tree species diversity. Especially in the last decades, dense floodplain forests dominated by invasive willows and poplars and additionally Russian olive and tamarisk spread almost explosively e.g. along the Río Negro in northern Patagonia. This study focuses on the identification of ecological niches and niche overlaps of the native and invasive woody species in order to assess the impact on the native Salix humboldtiana Willd. Data on species (presence/ absence) and explanatory variables were gathered in the field using a grid-based, stratified-randomized sampling design. Different environmental variables were then related to species occurrence in different life stages (adult, juvenile, seedling) using habitat distribution models. In the final models, flood duration, the amount of gravel and the location (upper or middle river valley) were included to describe the probability of occurrence of native and invasive taxa. For all life stages, a strong niche overlap could be observed for S. humboldtiana and the invasive taxa with no remaining exclusive habitats indicating a potential threat to the native willow. The study contributes to a better understanding of Salicaceae invasion and its consequences for riparian ecosystems.
Optimization of preparation conditions of epoxy-containing nanocapsules
Authors: Cai Xiulan , Fu Datian , Qu Ailan
Published: August 2015

Nanocapsules using epoxy and urea formaldehyde as core and shell materials, respectively, were prepared by in situ polymerization. The effects of processing conditions on the properties of epoxy nanocapsules were systematically investigated based on w(core) and average diameter of nanocapsules through the method of orthographic factorial design, and the optimum processing conditions were concluded. The results indicated that the key influencing factors on w(core) was agitation rate; on average, diameter of nanocapsules was emulsifier. The analysis of mechanical properties and thermal stability indicated that nanocapsules prepared in the optimum conditions are suitable for storage and the optimum content of nanocapsules was 10%. Scanning electron microscopy indicated that nanocapsules were well encapsuled and presented uniform spheres with rough surface. The broken nanocapsule indicated that the shell of the nanocapsule was thin and could coat more epoxy resin. The analysis of finite element method proved that nanocapsules prepared in the optimum conditions with an average of 110 nm shell thickness were suitable for self-healing materials.
Numerical Study of Unsteady Properties of Ethylene/Air Turbulent Jet Diffusion Flame with Detached Eddy Simulation
Authors: Ma Sugang , Zhong Fengquan , Zhang Xinyu
Published: August 2015

In this paper, unsteady process of ignition and combustion of turbulent plane-jet diffusion flame of ethylene/air is numerically simulated with detached eddy simulation (DES) and a reduced kinetic mechanism of ethylene. The kinetic mechanism consisting of 25 species and 131 steps is reduced from a 25 species/131 steps detailed mechanism via the method of error-propagation-based directed relation graph (DRGEP). The DES results of averaged temperature profiles at varied downstream locations are compared with the DNS results of Yoo et al. [
Dense Electron-Positron Pair Plasma Expansion
Authors: Djebli Mourad
Published: August 2015

The expansion of an electron-positron plasma is studied based on quantum hydrodynamical equations for two fluids. The quasi-neutral expansion, depicted through the quantum screening distance, is investigated numerically when the annealing processes is very slow. It was found that the pair plasma behaves as a single fluid with a front expansion velocity that depends on the density and degenerate parameters. Faster expansion results from the existence of exchange-correlation potential, which is enhanced in high-density plasma. The present investigation may be useful in understanding the expansion of a dense plasma produced by the interaction between high-energy laser and solid targets.
Influence of metal ions on the formation of new metal complexes constructed from tetrachlorophthalic acid
Authors: Dai An-Qi , Yan Qi , Zhong Jing , Chen Sheng-Chun , He Ming-Yang , Chen Qun
Published: August 2015

Reaction of 3,4,5,6-tetrachloro-1,2-benzenedicarboxylyic acid (1,2-H2BDC-Cl4) with transitional metal salts at room temperature in mixed DMF/H2O solvent affords three complexes formulated as [Cu(1,2-HBDC-Cl4)2(DMF)2] (1), {[Cd(1,2-HBDC-Cl4)2(H2O)4]·2DMF} (2), and {[Ni(1,2-BDC-Cl4)(H2O)5]·DMF·H2O} (3) (DMF = N,N-dimethylformamide). All these complexes have been characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis, and single-crystal X-ray crystallography. In 1, the CuII ion is four-coordinated with a square-planar geometry formed by two 1,2-HBDC-Cl4 anions and two DMF ligands; in 2, the CdII ion takes an octahedral geometry coordinated by two 1,2-HBDC-Cl4 anions and four aqua ligands; while in 3, the NiII ion is octahedrally coordinated by one 1,2-BDC-Cl4 dianion and five aqua ligands. Intermolecular O–H···O hydrogen bonds and Cl···Cl (or C–H···Cl) interactions provide a significant contribution to stabilizing the three mononuclear structures in the solid state. The results suggest that structural differences among them are attributed to the influence of transition metal ions. The fluorescence of the complexes and of 1,2-H2BDC-Cl4 has been investigated. No significant metal effect has been observed.
Serum adiponectin in HIV-1 and hepatitis C virus mono- and co-infected Kenyan injection drug users
Authors: Ndombi Eric M , Budambula Valentine , Webale Mark K , Musumba Francis O , Wesongah Jesca O , Mibei Erick , Ahmed Aabid A , Lihana Raphael , Were Tom
Published: August 2015

Adiponectin is an important marker of anthropometric profiles of adipose tissue. However, association of adiponectin and adiposity in HIV mono- and co-infected and hepatitis (HCV) injection drug users (IDUs) has not been elucidated. Therefore, the relationship of total adiponectin levels with anthropometric indices of adiposity was examined in HIV mono-infected (anti-retroviral treatment, ART-naive, n=16 and -experienced, n=34); HCV mono-infected, n=36; HIV and HCV co-infected (ART-naive, n=5 and -experienced, n=13); uninfected, n=19 IDUs; and healthy controls, n=16 from coastal Kenya. Anthropometric indices of adiposity were recorded and total circulating adiponectin levels were measured in serum samples using enzyme-linked immunosorbent assay. Adiponectin levels differed significantly amongst the study groups (P<0.0001). Post-hoc analyses revealed decreased levels in HIV mono-infected ART-naive IDUs in comparison to uninfected IDUs (P<0.05) and healthy controls (P<0.05). However, adiponectin levels were elevated in HCV mono-infected IDUs relative to HIV mono-infected ART-naive (P<0.001) and -experienced (P<0.001) as well as HIV and HCV co-infected ART-naive (P<0.05) IDUs. Furthermore, adiponectin correlated with weight (ρ=0.687; P=0.003) and BMI (ρ=0.598; P=0.014) in HIV mono-infected ART-naive IDUs; waist circumference (ρ=−0.626; P<0.0001), hip (ρ=−0.561; P=0.001) circumference, and bust-to-waist ratio (ρ=0.561; P=0.001) in HIV mono-infected ART-experienced IDUs; waist girth (ρ=0.375; P=0.024) in HCV mono-infected IDUs; and waist-to-hip ratio (ρ=−0.872; P=0.048) in HIV and HCV co-infected ART-naive IDUs. Altogether, these results suggest suppression of adiponectin production in treatment-naive HIV mono-infected IDUs and that circulating adiponectin is a useful surrogate marker of altered adiposity in treatment-naive and -experienced HIV and HCV mono- and co-infected IDUs.
Thyroid hormones and tetrac: new regulators of tumour stroma formation via integrin αvβ3
Authors: Schmohl Kathrin A , Müller Andrea M , Wechselberger Alexandra , Rühland Svenja , Salb Nicole , Schwenk Nathalie , Heuer Heike , Carlsen Janette , Göke Burkhard , Nelson Peter J , Spitzweg Christine
Published: August 2015

To improve our understanding of non-genomic, integrin αvβ3-mediated thyroid hormone action in tumour stroma formation, we examined the effects of triiodo-l-thyronine (T3),l-thyroxine (T4) and integrin-specific inhibitor tetrac on differentiation, migration and invasion of mesenchymal stem cells (MSCs) that are an integral part of the tumour's fibrovascular network. Primary human bone marrow-derived MSCs were treated with T3or T4in the presence of hepatocellular carcinoma (HCC) cell-conditioned medium (CM), which resulted in stimulation of the expression of genes associated with cancer-associated fibroblast-like differentiation as determined by qPCR and ELISA. In addition, T3and T4increased migration of MSCs towards HCC cell-CM and invasion into the centre of three-dimensional HCC cell spheroids. All these effects were tetrac-dependent and therefore integrin αvβ3-mediated. In a subcutaneous HCC xenograft model, MSCs showed significantly increased recruitment and invasion into tumours of hyperthyroid mice compared to euthyroid and, in particular, hypothyroid mice, while treatment with tetrac almost completely eliminated MSC recruitment. These studies significantly improve our understanding of the anti-tumour activity of tetrac, as well as the mechanisms that regulate MSC differentiation and recruitment in the context of tumour stroma formation, as an important prerequisite for the utilisation of MSCs as gene delivery vehicles.
Influence of biomineralization on a profile of a tropical soil affected by erosive processes
Authors: Valencia González Yamile , Carvalho-Camapum José , Lara-Valencia Luis Augusto
Published: August 2015

Most of the soils of tropical countries, especially those in South America and Africa, are affected by erosion processes. As a result, researchers in the field of geotechnical engineering, specifically in the context of "biotechnology" or "bioengineering", have been investigating the use of microorganisms to improve the geotechnical properties and stability of soils. Using this approach, this work was developed to analyze the effects of the implementation of a calcium carbonate precipitating nutrient in native microbiota on the mitigation of erosion processes in a tropical soil profile. The methodology used in this research consisted of collecting undisturbed samples in a soil profile located in an area affected by erosion processes. In such samples, the native bacteria were identified, and it was determined that the nutrient B4 induced the precipitation of calcium carbonate. Subsequently, soil samples were characterized physically, chemically, mineralogically and mechanically in their natural state and after the addition of the nutrient. The tests were performed at least fifteen days after treatment with the nutrient. It was concluded that the use of the nutrient B4 enabled the native bacteria present in the soil to precipitate calcium carbonate, resulting in improvements in the physical, chemical, mineralogical and mechanical properties of the soil, which allowed for the mitigation of erosion processes that characterize the soil profile studied. The conclusions derived from the study apply not only to other tropical soil profiles subjected to erosion but also to improvements of the geotechnical behavior of soils in general.
Cost estimation in software engineering projects with web components development
Authors: De Andrés Suárez Javier , Fernández-Lanvin Daniel , Lorca Pedro
Published: August 2015

La correcta predicción de costes es crucial para el éxito de un proyecto de ingeniería del software, dado que una estimación incorrecta puede derivar en el fracaso del mismo. Existen multitud de modelos propuestos para abordar esta parte de la gestión del proyecto, algunos orientados específicamente para proyectos de componente Web. Este trabajo trata de analizar si esta gestión específica de proyectos Web está justificada, examinando el comportamiento diferencial de los costes entre proyectos de desarrollo software Web y no Web. El análisis se centra en dos aspectos del cálculo de costes: las deseconomías de escala que se dan en este tipo de proyectos, y el impacto que conllevan algunas características de estos proyectos que son frecuentemente utilizados como cost drivers. Tras una revisión de las características principales de los desarrollos de proyectos Web, se enuncian dos hipótesis: (a) en estos proyectos las deseconomías de escala son mayores y (b) el efecto del incremento de coste que provocan los cost drivers de coste es menor para los proyectos Web. Se contrastaron estas hipótesis utilizando una base de datos con datos de proyectos reales. Los resultados sugieren que ambas hipótesis se cumplen, lo que justificaría el desarrollo y uso de modelos específicos para este tipo de proyectos.
Effects on lifetime of low voltage conductors due to stationary power quality disturbances
Authors: Duran-Tovar Ivan Camilo , Pavas-Martínez Fabio Andrés , Duarte-Velasco Oscar German
Published: August 2015

This paper presents a methodology to estimate the effects of heating and lifetime in Low Voltage conductors (LV) due to the presence of stationary power quality disturbances. Conductor overheating and cable insulation accelerated aging can be caused by temporary increases in the rms values of the voltages and currents due to stationary disturbances. Waveform distortion, unbalance and phase displacements can be considered among the stationary disturbances. For disturbances with short duration, there is no significant reductions in the insulation lifetime, but disturbances acting for long time periods will cause cumulative and detrimental effects. Currently valid models for insulation aging are employed; the expected power quality disturbance levels are extracted from power quality data bases. A discussion about the effects on insulation lifetime is presented.
Methodology for Relative Location of Voltage Sags Source using Voltage Measurements Only
Authors: Blanco Solano Jairo , Petit Suárez Johann F. , Ordóñez Plata Gabriel Ordóñez Plata
Published: August 2015

This paper presents a methodology for the relative location of voltage sags source based on voltage measurements only. Network faults are the most frequent disturbances in the electrical systems and in turn are the causes that generate most voltage sags. Thus, the proposed algorithm considers only voltage sags by network faults and a minimum of three voltage meters are required. Power quality can be evaluated automatically using the characterising and extracting information from voltage records. The positive sequence voltages are the descriptors used to determine the relative location of the voltage sags causes and the methodology is applied to a simulation where its effectiveness is verified. Matlab was used for validating this methodology, receiving voltage records of simulated voltage sags in ATP-EMTP. 
Energy considerations of social dwellings in Colombia accotding to NZEB concept
Authors: Osma Pinto Germán Alfonso , Sarmiento Nova David Andrés , Barbosa Calderón Nelly Catherine , Ordóñez Plata Gabriel
Published: August 2015

In this paper, the characteristics and definitions of NZEBs are studied. In particular, the methods for calculating balance for each concept and methodology are analyzed in this work, taking into account the interaction of the NZEB with the energy grid, the emissions produced per energy consumption and the introduction of the primary energy concept as an indicator of balance. High-energy-efficient appliances are of main interest in this paper due to the importance and level of use in tropical regions. It is described how these appliances can reduce the energy consumption and its impact in the electrical performance being a benefit significant in Colombia, if it could be applied massively in projects related to Viviendas de Interés Social –VIS (social dwellings) in the long run.
Complete power distribution system representation and state determination for fault location
Authors: Panesso-Hernández Andres Felipe , Mora-Flórez Juan , Pérez-Londoño Sandra
Published: August 2015

The impedance-based approaches for fault location in power distribution systems determine a faulted line section. Next, these require of the estimation of the voltages and currents at one or both section line ends to exactly determine the fault location. It is a challenge because in most of the power distribution systems, measurements are only available at the main substation.  This document presents a modeling proposal of the power distribution system and an easy implementation method to estimate the voltages and currents at the faulted line section, using the measurements at the main substation, the line, load, transformer parameters and other serial and shunt connected devices and the power system topology. The approach here proposed is tested using a fault locator based on superimposed components, where the distance estimation error is lower than 1.5% in all of the cases. 
Detección del trastorno depresivo mayor en atención primaria. Una revisión
Authors: Calvo Gómez José Manuel , Jaramillo González Luis Eduardo
Published: August 2015

Antecedentes: El trastorno depresivo mayor (TDM) es una enfermedad frecuente en la población general y una de las principales causas de discapacidad en el mundo. La distinción entre los cambios que normalmente ocurren en el estado del ánimo y aquellos que están presentes en el espectro de los trastornos depresivos no es una tarea fácil, por esta razón se han propuestos varios mecanismos e instrumentos para mejorar la detección de este trastornos en la consulta de atención primaria.

Objetivos: Evaluar si la detección sistemática rutinaria con instrumentos de tamizaje, con o sin sistemas de seguimiento y manejo integrado, es más efectiva que la atención usual en identificar pacientes con depresión, facilitar su tratamiento, y mejorar los resultados clínicos, a nivel de la atención primaria.

Material y Métodos: Para determinar la utilidad del tamizaje sistemático para depresión a nivel de atención primaria, se llevó a cabo una búsqueda de estudios de casos y controles, cohortes y controlados aleatorizados, revisiones sistemáticas, y meta-análisis, en las bases de datos MEDLINE, Base de datos de revisiones sistemáticas Cochrane, Registro central de estudios controlados Cochrane, PsycINFO, y EMBASE, desde enero de 1976 hasta el 30 de abril de 2013.

Resultados: La evidencia existente mostró que muchos casos de depresión no son detectados. Los médicos de atención primaria (MAP) logran tasas de detección del trastorno depresivo entre el 30% y 40% (rango 7-70%), sin utilizar herramientas adicionales para el diagnóstico como las escalas de una, dos y tres preguntas. Los pacientes con los cuadros menos severos y más jóvenes son los menos detectados.

Conclusiones: La evidencia encontrada muestra que el tamizaje para depresión a nivel de atención primaria con retroalimentación del resultado puede incrementar el reconocimiento del trastorno por parte del MAP. Sin embargo, el efecto de la retroalimentación sobre el tratamiento y los resultados en cuanto a mejoría del cuadro clínico o remisión es muy pobre, a menos que sea realizada en presencia de otros sistemas o grupos de apoyo que permitan asegurar el diagnóstico exacto, el tratamiento y el seguimiento de los pacientes cuyo resultado sea positivo. El apoyo consiste en algún tipo de atención directa del paciente deprimido, manejo de caso, apoyo en el cuidado y seguimiento, y tratamiento por un especialista en salud mental, entre otros.
O psiquiatra forense frente às demandas dos tribunais de família
Authors: De Borba Telles Lisieux E. , Peres Day Vivian , Soares Barros Alcina Juliana , Fay de Azambuja Maria Regina
Published: August 2015

Resumo

Nas sociedades contemporâneas, a união entre as pessoas ocorre, de forma mais frequente, a partir das escolhas afetivas. No Brasil da última década, observou-se o aumento de 20% nas dissoluções de uniões conjugais. Alguns cônjuges não conseguem superar as dificuldades que emergem quando do término da relação, passando os filhos a serem alvo da conduta dos pais, configurando, em alguns casos, a Síndrome da Alienação Parental, observada em certos litígios que chegam às Varas de Família. O presente artigo enfoca o papel do psiquiatra forense frente às demandas oriundas das separações conjugais, à Síndrome de Alienação Parental e às legislações relacionadas a esta síndrome, em especial à lei brasileira nº 12.318, de 26 de agosto de 2010.

Palavras chave: Criança; Divórcio; Avaliação; Psiquiatria forense (DeCS).

Summary

In modern societies, people decide to marry, more frequently, based on affective choices. In Brazil, during the last decade, there was a 20% increase in marital unions dissolutions. Some spouses fail to overcome the problems and difficulties that arise at the end of a relationship, with their children being the ones affected by their parents’ actions and behavior, thus giving place, in some cases, to the Parental Alienation Syndrome, which is observed in certain disputes that reach Family Courts. This article focuses on the Forensic Psychiatry role regarding the claims and demands that arise from marital dissolution, the Parental Alienation Syndrome and the legislation related to this syndrome, in particular the Brazilian Law 12.318, issued on August 26th, 2010.

Keywords: Child; Custody; Divorce; Forensic Psychiatry (MeSH).
Highly crystalline graphene formation from graphene oxides by ultrahigh temperature process using solar furnace
Authors: Kobayashi Yoshihiro , Ishida Takashi , Miyata Yuichiro , Shinoda Yoshihiko
Published: August 2015

This work reports the efficient structural restoration of defective graphene oxide (GO) to a crystalline graphene by an ultrahigh temperature process at around 1800 °C achieved by a solar furnace. The GO samples were treated at high temperature by irradiating concentrated sunlight and focusing it on the sample under an inert nitrogen environment at atmospheric and reduced pressure. The structural restoration of GO was analyzed by Raman spectra, and the features of their D- and 2D-bands were remarkably improved at ultrahigh temperatures. The restoration was induced not by a photochemical reaction but dominantly by a thermally stimulated reaction. The process under reduced pressure gives rise to significantly better features in the Raman spectra than that of the atmospheric condition. This tendency shows that a trace amount of impurities contained in pure nitrogen gas are not negligible and attack the GO surfaces to induce considerable defects. These results indicate the superiority of the ultrahigh temperature process at reduced pressure for efficient GO restoration and the formation of highly crystalline graphene.
Aggressive Behavior of Students in Serbia
Authors: Jevtić Bisera
Published: August 2015

Aggressive behavior is a complex phenomenon that attracts attention because of it’s reinforced in the modern world, and whose long-term study didn’t give any permanent solution to combat this, certainly undesirable behaviors. The reason for the study of aggressive behavior in primary schools is that the school as an institution, which are traditionally considered safe place of children today become a place where more and more present increased aggressiveness students. School climate, school organization and it’s work can pose to students as a protective factor, and so disturbing factor and cause behavioral problems in students. At school there are many different social situations and contacts, some of which are risk factors for the emergence and expression of aggressive student behavior. Therefore, we need to determine what are the situations in the everyday school, which can be a potential source of aggression. The goal of our research is to determine what the type of aggressive behavior are represented in the school and to determine which school situations lead to the manifestation of aggressive behavior in students. Levels of aggression among older elementary and high school students is extremely high, with all the dramatic consequences, even though research shows that aggression and violence by the age groups of students in Serbia is below the average of other countries.
Evidências de Validade de Construto da Escala de Componentes do Amor
Authors: Hernandez José Augusto Evangelho
Published: August 2015

RESUMO Este estudo buscou verificar as propriedades psicométricas da versão brasileira da Escala de Componentes do Amor reduzida. Participaram 491 pessoas que estavam em relacionamentos amorosos. Análise Fatorial Exploratória extraiu três fatores que explicaram 73,5% da variância comum que não reproduziram a estrutura original. Os fatores extraídos apresentaram correlações de moderadas a fortes entre si e com os componentes da Escala Triangular do Amor reduzida. A solução de Schmid-Leiman indicou a existência de fator de segunda ordem na estrutura da escala. Os Alfas revelaram elevados índices de consistência interna para as dimensões do instrumento. Análise Fatorial Exploratória adicional com o conjunto de itens das duas medidas revelou uma estrutura fatorial indicativa de que estes possam representar os mesmos componentes do amor.
Guia de Avaliação das Capacidades Parentais: Estudo de Validade Ecológica
Authors: Pereira Dora , Alarcão Madalena
Published: August 2015

RESUMO Este estudo teve como objetivo avaliar e maximizar a adequação do Guia de Avaliação das Capacidades Parentais (De Rancourt, Paquette, Paquette, & Rainville, 2006) ao sistema de proteção à infância português. Utilizou-se uma metodologia de grupos focais com técnicos psicossociais, magistrados e académicos que trabalham diretamente com a avaliação da parentalidade. As discussões focaram a exequibilidade da aplicação, a utilidade da informação recolhida e dos juízos clínicos efetuados para a elaboração de pareceres técnicos, e as alterações consideradas necessárias. Da análise efetuada com o software QSRNVivo8, concluiu-se que o Guia assenta em conhecimento científico atualizado e possibilita a obtenção de informação suficiente. Foram identificadas e detalhadas alterações metodológicas, estruturais e de conteúdo a introduzir no instrumento.
Rotinas Familiares de Crianças com Necessidades Especiais em Família Adotiva
Authors: Silva Fabíola Helena Oliveira Brandão , Cavalcante Lilia Iêda Chaves
Published: August 2015

RESUMO Objetivou-se descrever as rotinas de três famílias, que adotaram crianças com necessidades especiais ,que tinham conhecimento prévio dessa condição infantil. Utilizou-se o método de Estudo de Casos Múltiplos. Os dados foram obtidos por meio de Entrevista Semiestruturada (ES), do Inventário de Rotina (IR) e do Diário de Campo (DC). Quanto às semelhanças entre os grupos familiares, identificou-se que são comuns as atividades de alimentação/higiene, descanso e lazer, envolvendo a participação dos pais, irmãs e babás, geralmente nos ambientes domésticos da família. Observou-se diferenças importantes nos padrões de atividades, companhias e ambientes onde as rotinas ocorriam. Conclui-se que as variações nas rotinas estão relacionadas às particularidades de cada criança, à estrutura e nível socioeconômico de cada família participante.
Trabalho, alienação e fetichismo: categorias para a compreensão marxiana do Estado e do político
Authors: Lima Rômulo André
Published: August 2015

O artigo propõe uma chave de leitura categorial para a compreensão do pensamento de Marx sobre o Estado e a política. Trabalho, alienação e fetichismo são apresentados como categorias que permitem desvendar o sentido imanente das considerações do autor sobre o assunto. O texto argumenta que tanto a concepção de trabalho como práxis quanto a crítica à forma específica do trabalho no capitalismo comparecem na formulação da crítica marxiana às formas sociais modernas do Estado e da política.
Lutas políticas, disposições e transações sociais em microcampos bancários
Authors: Machado Eduardo Gomes
Published: August 2015

Os espaços de trabalho bancários são compreendidos como microcampos, com estruturas e disposições condicionando as práticas - transações sociais - de bancárias, bancários e clientes. Convivendo cotidianamente, esses agentes reconstituem transacionalmente escolhas e posturas adequadas a cada situação experienciada, participando de lutas políticas que redefinem continuamente as correlações de força, as hierarquias, as lideranças e os ordenamentos nos microcampos. São analisadas situações concretas no Banco do Brasil, a partir de dados gerados através de análise documental, entrevistas semiestruturadas e observação direta. Discutindo formas de exercício do poder e estratégias de luta e de resistência nos microcampos, os resultados revelam características, mudanças e complexidades sociopolíticas, sob os regimes de estabilidade e de empregabilidade no Banco do Brasil.
O inimigo principal: a economia política do patriarcado
Authors: Delphy Christine
Published: August 2015

Christine Delphy indica a existência de um modo produção patriarcal, que opera em paralelo ao capitalismo, transferindo sobretrabalho das mulheres para seus maridos. Ela observa em particular dois fenômenos: (1) a permanência de uma boa quantidade de trabalho realizado no âmbito doméstico, mas voltado ao mercado, sobretudo no meio rural, quando a produção das mulheres é apropriada pelos homens; (2) a incoerência de julgar que a produção gerada para o autoconsumo não gera valor. As mulheres, assim, constituem tanto um grupo efetivamente submetido a uma determinada relação de produção, ou seja, uma classe, quanto uma categoria de seres humanos destinados por nascimento a entrar nessa classe, ou seja, uma casta. O artigo discute ainda as diferenças entre a posição da esposa, cujos serviços são remunerados de acordo não com o volume ou qualificação do trabalho, mas com as posses e a boa vontade do marido, e do trabalhador assalariado.
Quanto vale uma valência?
Authors: Miguel Luis Felipe
Published: August 2015

O paper apresenta uma crítica metodológica e política da categoria "valência", muito utilizada nos estudos brasileiros sobre comunicação e democracia. A valência só é operacionalizada à base de simplificações e mutilações da realidade que busca descrever; e traz implícito um ideal de imparcialidade jornalística que é questionável.
Pragmatismo, marxismo e democracia: a negligenciada contribuição de Sidney Hook
Authors: Mendonça Ricardo Fabrino , Reis Luísa de Albuquerque Viana
Published: August 2015

O presente artigo discute as contribuições teóricas do filósofo norte-americano Sidney Hook a fim de buscar insumos para a construção de uma teoria democrática crítica. O retorno à obra desse controverso e negligenciado intelectual público se justifica por sua tentativa de articulação, ainda nos anos 1930, de duas correntes pensadas como opostas: o marxismo e o pragmatismo. Tais correntes são a base de sua proposta de democracia, fundada no autoverno com efetivo livre consentimento. O texto está estruturado em quatro seções. Na primeira delas, apresentam-se a vida e a obra de Sidney Hook. Na segunda, exploram-se as raízes pragmatistas do autor e a forma como ele constrói suas ideias a partir deste legado. Na terceira seção, abordam-se os elementos que o autor busca no marxismo e as suas críticas aos continuadores da tradição. Por fim, exploramos as ideias políticas de Hook, com foco em sua concepção de democracia, que parece ser simultaneamente radical e conservadora.
Processo para evidenciação do estado da arte aplicado ao tema gestão de produção científica
Authors: ENSSLIN Leonardo , WAICZYK Cleomir , CHAVES Leonardo Corrêa , ENSSLIN Eduardo Rolim
Published: August 2015

A tecnologia e o atual volume eletrônico de publicações tornaram mais complexa a avaliação das publicações científicas. Nesse contexto, a cientometria auxilia a comunidade científica na avaliação de conteúdo, por meio de diversos indicadores relacionados à performance acadêmica, com o propósito de trazer progresso a diversos campos de pesquisa. O presente trabalho enquadra-se como pesquisa qualitativa e quantitativa, de caráter exploratório-descritivo e de natureza teórico-ilustrativa. O objetivo da pesquisa é identificar os artigos disponíveis na literatura internacional que abordam o desempenho de métricas para avaliação de produções científicas, bem como realizar uma análise bibliométrica desses artigos. Foi utilizado o Knowledge Development Process-Constructivist como instrumento de intervenção. Como resultado, 15 artigos foram identificados para compor um Portfólio Bibliográfico com reconhecimento científico e alinhado ao tema segundo as delimitações postas pelos pesquisadores. O Portfólio Bibliográfico foi submetido a análise bibliométrica, evidenciando que o Scientometrics obteve o maior destaque como periódico; que o artigo An index to quantify an individual's scientific research output foi o mais reconhecido pelo número de citações; que o pesquisador Van Raan, APJ foi considerado o autor de destaque; e que os termos bibliometrics, citatione research assessmentapareceram como as palavras-chave mais recorrentes para o tema.
Estimación del impacto económico de los museos a través de las nuevas tecnologías de la información: el caso del museo Ene.Térmica
Authors: COLL-SERRANO Vicente , RAUSELL-KÓSTER Pau , ABELEDO-SANCHIS Raúl
Published: August 2015

Cada vez es más necesario poner de relieve el potencial de la cultura como motor del desarrollo económico y su capacidad para generar ingresos y crear empleo. Por este motivo, en este trabajo se evalúa el impacto económico del museo Ene.Térmica sobre el territorio en el que se ubica, Ponferrada (Comunidad de Castilla y León, España). Para lograr este objetivo, la estimación de los distintos tipos de efectos necesarios para determinar el impacto de las actividades económicas vinculas a la existencia de Ene.Térmica se realiza, en base a la metodología de las Tablas Input-Output, mediante la herramienta Impactrimonio, una aplicación implementada sobre una plataforma web. Los resultados obtenidos indican que entre las actividades del museo y los flujos de demanda desplegados por el efecto arrastre de los visitantes se generó, entre los años 2011 y 2012, un incremento de la producción de más de 15 millones de euros, un incremento de las rentas de la población de casi 10 millones de euros y un aumento de la ocupación de 327 empleos.
Análise da integração da recuperação da informação, information search behaviour e interação humano-computador para avaliação de sistemas de recuperação da informação
Authors: GOMES Gracielle Mendonça Rodrigues , CENDÓN Beatriz Valadares
Published: August 2015

Mesmo diante de várias mudanças para aperfeiçoar os sistemas de recuperação de informação, o último desafio da pesquisa na área ainda é proporcionar sistemas que sejam capazes de recuperar as informações relevantes disponíveis para melhor satisfazer a necessidade do usuário. Recentemente, no desenvolvimento de sistemas de recuperação da informação têm sido privilegiadas abordagens que considerem os aspectos humanos em recuperação da informação. Este artigo apresenta as áreas de Recuperação da Informação, Information Search Behavioure Interação Humano-Computador, e discute a importância da sinergia entre elas para a avaliação e o desenvolvimento de sistemas altamente interativos. Além disso, evidencia que a interseção entre estas áreas formou uma especialidade de pesquisa denominada de Recuperação da Informação Interativa que tem como objetivo capacitar as pessoas a entender e a solucionar suas necessidades de informação através das interações com os sistemas.
O espaço das desigualdades educativas no município de São Paulo
Authors: Perosa Graziela Serroni , Lebaron Frédéric , Leite Cristiane Kerches da Silva
Published: August 2015

Resumo Este artigo apresenta os resultados parciais de uma pesquisa sobre o estado atual das disparidades educacionais em São Paulo. A partir de uma Análise de Componentes Principais Standard (ACP), realizada com dados do Censo 2010/IBGE, identificou-se e comparou-se as características sociodemográficas da população do município e a distribuição de indicadores educacionais entre as regiões das subprefeituras da cidade. Isso permitiu examinar a relação entre posição social, condições de vida e usos socialmente diferenciados do sistema de ensino. Os resultados revelaram que, se um primeiro eixo opõe de maneira esperada os bairros ricos aos bairros pobres, um segundo revela uma divisão mais fina, no interior do espaço urbano, ligada à posse do diploma de ensino médio, que diferencia tanto as regiões de classes médias e altas, como as subprefeituras das periferias da cidade.