bluuebunny/crossref_metadata_2025 huggingface dataset:
A Neurodevelopmental Perspective for Autism-Associated Gene Function
Authors:   Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth College, Lebanon, NH 03756, USA, Poquérusse Jessie , Luikart Bryan W. ,   Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth College, Lebanon, NH 03756, USA
Published: April 2017

Large-scale genetic sequencing studies have identified a wealth of genes in which mutations are associated with autism spectrum disorder (ASD). Understanding the biological function of these genes sheds light onto the neurodevelopmental basis of ASD. To this end, we defined functional categories representing brain development – (1) Cell Division and Survival, (2) Cell Migration and Differentiation, (3) Neuronal Morphological Elaboration, (4) Development and Regulation of Cellular Excitability, and (5) Synapse Formation and Function – and place 100 high confidence ASD-associated genes yielding at least 50 published PubMed articles into these categories based on keyword searches. We compare the categorization of ASD genes to genes associated with developmental delay (DD) and systematically review the published literature on the function of these genes. We find evidence that ASD-associated genes have important functions that span the neurodevelopmental continuum. Further, examining the temporal expression pattern of these genes using the BrainSpan Atlas of the Developing Human Brain supports their function across development. Thus, our analyses and review of literature on ASD gene function support a model whereby differences in brain development – from very early stages of macroarchitectural patterning to late stages of activity-dependent sculpting of synaptic connectivity – may lead to ASD. It will be important to keep investigating potential points of mechanistic convergence which could explain a common pathophysiological basis of ASD behind this disparate array of genes.
Geographical proximity and technological intensity in manufacturing: evidence from the periphery of the São Paulo-Brasília axis at the beginning of the 21st century
Authors: Mesquita Fernando Campos , Sampaio Daniel Pereira
Published: April 2017

This article analyzes manufacturing dynamics along the periphery of the São Paulo-Brasília axis from a perspective that studies the extent to which technological intensity has been influenced by being distant from the core. The aim is to investigate geographical proximity as a limiting factor in the ongoing process of manufacturing deconcentration in Brazil. To measure this phenomenon, the São Paulo-Brasília axis was divided into three peripheral regions: nearby, middle and distant. Subsequently, data related to the industrial workforce, the level of average real salaries, and qualifications of the workforce were used to analyze each of the subdivisions during 2002, 2008, 2014. Results demonstrate that even within a context of investments in transport infrastructure and new possibilities created by advances in communication technologies, the heterogeneities of manufacturing became more intense. The regions geographically closer to the Metropolitan Region of São Paulo demonstrate a higher technological qualification of its industrial structure, while those furthest away are primarily composed of labor-intensive natural resource industries.
Better local hidden variable models for two-qubit Werner states and an upper bound on the Grothendieck constantKG(3)
Authors: Hirsch Flavien , Quintino Marco Túlio , Vértesi Tamás , Navascués Miguel , Brunner Nicolas
Published: April 2017

We consider the problem of reproducing the correlations obtained by arbitrary local projective measurements on the two-qubit Werner stateρ=v|ψ−⟩⟨ψ−|+(1−v)14via a local hidden variable (LHV) model, where|ψ−⟩denotes the singlet state. We show analytically that these correlations are local forv=999×689×10−6cos2⁡(π/50)≃0.6829. In turn, as this problem is closely related to a purely mathematical one formulated by Grothendieck, our result implies a new bound on the Grothendieck constantKG(3)≤1/v≃1.4644. We also present a LHV model for reproducing the statistics of arbitrary POVMs on the Werner state forv≃0.4553. The techniques we develop can be adapted to construct LHV models for other entangled states, as well as bounding other Grothendieck constants.
Limits on the storage of quantum information in a volume of space
Authors: Flammia Steven T. , Haah Jeongwan , Kastoryano Michael J. , Kim Isaac H.
Published: April 2017

We study the fundamental limits on the reliable storage of quantum information in lattices of qubits by deriving tradeoff bounds for approximate quantum error correcting codes. We introduce a notion of local approximate correctability and code distance, and give a number of equivalent formulations thereof, generalizing various exact error-correction criteria. Our tradeoff bounds relate the number of physical qubits n, the number of encoded qubits k, the code distance d, the accuracy parameter δ that quantifies how well the erasure channel can be reversed, and the locality parameter ℓ that specifies the length scale at which the recovery operation can be done. In a regime where the recovery is successful to accuracy δ that is exponentially small in ℓ, which is the case for perturbations of local commuting projector codes, our bound reads kd2D−1≤O(n(log⁡n)2DD−1) for codes on D-dimensional lattices of Euclidean metric. We also find that the code distance of any local approximate code cannot exceed O(ℓn(D−1)/D) if δ≤O(ℓn−1/D). As a corollary of our formulation of correctability in terms of logical operator avoidance, we show that the code distance d and the size d~ of a minimal region that can support all approximate logical operators satisfies d~d1D−1≤O(nℓDD−1), where the logical operators are accurate up to O((nδ/d)1/2) in operator norm. Finally, we prove that for two-dimensional systems if logical operators can be approximated by operators supported on constant-width flexible strings, then the dimension of the code space must be bounded. This supports one of the assumptions of algebraic anyon theories, that there exist only finitely many anyon types.
Proposal for witnessing non-classical light with the human eye
Authors: Dodel A. , Mayinda A. , Oudot E. , Martin A. , Sekatski P. , Bancal J.-D. , Sangouard N.
Published: April 2017

We give a complete proposal showing how to detect the non-classical nature of photonic states with naked eyes as detectors. The enabling technology is a sub-Poissonian photonic state that is obtained from single photons, displacement operations in phase space and basic non-photon-number-resolving detectors. We present a detailed statistical analysis of our proposal including imperfect photon creation and detection and a realistic model of the human eye. We conclude that a few tens of hours are sufficient to certify non-classical light with the human eye with a p-value of 10%.
A purification postulate for quantum mechanics with indefinite causal order
Authors: Araújo Mateus , Feix Adrien , Navascués Miguel , Brukner Časlav
Published: April 2017

To study which are the most general causal structures which are compatible with local quantum mechanics, Oreshkovetal.\cite{oreshkov12} introduced the notion of a process: a resource shared between some parties that allows for quantum communication between them without a predetermined causal order. These processes can be used to perform several tasks that are impossible in standard quantum mechanics: they allow for the violation of causal inequalities, and provide an advantage for computational and communication complexity. Nonetheless, no process that can be used to violate a causal inequality is known to be physically implementable. There is therefore considerable interest in determining which processes are physical and which are just mathematical artefacts of the framework. Here we make key progress in this direction by proposing a purification postulate: processes are physical only if they are purifiable. We derive necessary conditions for a process to be purifiable, and show that several known processes do not satisfy them.
A internacionalização da educação superior e o Plano Nacional de Educação 2014-2024
Authors: Pereira Pablo , Heinzle Marcia Regina Selpa
Published: April 2017

A globalização suscitou, no século XXI, uma crise pluridimensional, a qual afeta as políticas públicas educacionais, as funções da universidade, enquanto centro produtor do conhecimento, e, por conseguinte, a comunidade acadêmica. Com base nesse contexto, pretendeu-se neste artigo identificar os conceitos de internacionalização da Educação Superior no Plano Nacional de Educação 2014-2024, à luz da concepção de universidade historicamente implantada no Brasil, assim como a criação da Universidade Federal de Integração Latino-Americana. Para isso, a pesquisa se deu pelo teor documental e também pela revisão de literatura produzida neste século. Constatou-se, por meio deste estudo, que o conceito da integração internacional e a mobilidade acadêmica são a principal perspectiva de internacionalização. Dessa forma, a sobrevivência das universidades, em meio à crise global, depende da promoção de um trabalho docente cosmopolita e de um novo modelo de universidade, pautado na interculturalidade e na integração internacional.
Editorial: Políticas de educação superior e trabalho docente
Authors: Almeida Maria de Lourdes Pinto de , Santos Filho José Camilo
Published: April 2017

É com imensa satisfação que apresentamos o volume 3, número 1 de 2017 da Revista Internacional de Educação Superior – RIESup. O eixo temático deste número gira em torno de “Políticas de Educação Superior e Trabalho Docente”, e consta com 11 artigos, 2 resenhas de livros e um debate sobre pesquisa cientifica.
AS ONTOLOGIAS DE UM DESASTRE AMBIENTAL. UM ESTUDO SOBRE UMA CONTROVÉRSIA INSTAURADA EM UMA LICENCIATURA DO CAMPO
Authors: Coutinho Francisco Ângelo , Silva Ana Paula , Santiago Fernanda Ferreira , Faria Elisa Sampaio de
Published: April 2017

A pesquisa aqui apresentada tem a intenção de contribuir para a compreensão das inter-relações entre o chamado “conhecimento acadêmico” e os conhecimentos e experiências de estudantes de uma Licenciatura em Educação do Campo, de uma universidade pública da região sudeste. Mais especificamente, interessa analisar as discussões que emergiram em duas aulas da turma de Ciências da Vida e da Natureza, com foco nos elementos presentes nas controvérsias que se instauraram nestes encontros. Fundamentada na teoria ator-rede, a pesquisa aponta para o fato de os licenciandos colocarem-se como sujeitos ativos que mobilizam conhecimentos, práticas e experiências que os fazem instaurar controvérsias em uma situação formativa e diante de conhecimentos autorizados pela universidade. Pôde-se perceber também uma ontologia rica em elementos relacionados às relações dinâmicas da economia, política, relações internacionais e hierarquias sociais. Deste modo, foi possível discernir elementos que compõem a realidade material com a qual os licenciandos estão amalgamados.
Equilibrium, kinetic and thermodynamic studies of the uptake of copper by layered double hydroxide
Authors: Nimibofa Ayawei , Tobin Ekubo , David Shooto , Donbebe Wankasi , Dixon Dikio
Published: April 2017

This study explored the adsorption capacity of Mg/Al layered double hydroxide (LDH) for the removal of Cu2+ from aqueous solutions after synthesis and characterization. The effect of various operational parameters such as concentration, temperature and sorption time on the adsorption of Cu2+ was investigated using batch adsorption process experiments. It was found that layered double hydroxide (LDH) can be used as adsorbent for the removal of copper ions in aqueous solution containing low concentration of the metal salt. The average values of activation energy, isosteric heat of adsorption, entropy and enthalpy were 1.447, 12.9, 0.0137 and ?4.8390 kJ/mol, respectively. This shows that the adsorption of the metal ion on the adsorbent follows a physical adsorption mechanism. The kinetic results conform to pseudo-second order model (R2 = 0.9959) and second order kinetic model (R2 = 0.9952) while the adsorption characteristics of the adsorbent followed both Langmuir and Freundlich adsorption isotherm models.
The Role of the Audit Committee in Their Oversight of Whistle-Blowing
Authors: Lee Gladys , Fargher Neil L.
Published: April 2017

We examine the role of the audit committee in their oversight of whistle-blowing. Our study examines whether the quality of the audit committee, captured by its independence, expertise, and diligence, is associated with two whistle-blowing outcomes: the choice of reporting channel (external whistle-blowing versus internal reporting) and the likelihood of retaliation against the whistle-blower. Using a sample of internal and external whistle-blowing cases, we find that a high-quality audit committee reduces the probability that misconduct is reported externally relative to internally, and reduces the probability that a whistle-blower experiences retaliation. We further find that a higher-quality audit committee is associated with the implementation of a stronger internal whistle-blowing system, which in turn reduces the likelihood of external relative to internal reporting. Together, our findings suggest that a high-quality audit committee helps to ensure that whistle-blowing disclosures are received and resolved through internal channels.
Grid Connected PV System Using ANFIS Based MPPT Controller in Real Time
Authors: Muhammed Y. Worku  , M.A. Abido
Published: April 2017

This paper presents an efficient design and real time implementation of a complete model and control of grid connected photovoltaic (PV) array. To capture the maximum available solar power, Adaptive Neuro-Fuzzy Inference System (ANFIS) implemented in real time using dSPACE is proposed. An efficient and independent active and reactive P-Q power control is proposed and implemented to transfer the generated power to the grid using a voltage source converter (VSC). The proposed controllers are implemented along with the PV system considered in Real Time Digital Simulator (RTDS) and dSPACE 1104 controller to evaluate their effectiveness. By varying the irradiation and temperature, the effectiveness of the proposed P Q controller to transfer the generated power to the grid is examined. It is observed that the hardware in the loop results verify the superiority of the proposed approach.
Chemical polishing of hexagonal p-type 6H-SiC surfaces by HF/Na2O2 solutions
Authors: K. Bourenane  , A. Keffous  , G. Nezzal
Published: April 2017

In this paper, we present an experimental method on the etching reaction of p-type 6H-SiC, etching that was carried out in HF/Na2O2 solutions. The morphology of the etched surface was examined with varying Na2O2 concentration, etching time and temperature solution. The surfaces of the etched samples were analyzed using Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR) and Photoluminescence. The surface morphology of samples etched in HF/Na2O2 is shown to depend on the solution composition and bath temperature. The investigation of the HF/Na2O2 solutions on 6H-SiC surface shows that as Na2O2 concentration increases, the etch rate increases to reach a maximum value at about 0.6 M and then decreases. A similar behaviour has been observed when temperature of the solution is increased. The maximum etch rate is found for 80 °C. Taking account the result a new polishing etching solution of 6H-SiC has been developed. In addition, the result is very interesting when to date no chemical polishing solution has been developed on silicon carbide (SiC). Finally, we have proposed a dissolution mechanism of the silicon carbide in HF/Na2O2 solutions.
Analysis of the Generation of Photovoltaic Solar Energy Connected by Electricity Energy Network Using the Software Energyplus
Authors: Gabriela Pessoa Campos  , Iago de Moura Faria  , Arnulfo Barroso de Vasconcellos  , Cátia Sanchez Roboredo  , Luciana Oliveira da Silva Lima  , Teresa  Irene Ribeiro de Carvalho Malheiro
Published: April 2017

This article aims to analyze through computer simulation the energy sustainability and Economic Feasibility of a residence with Photovoltaic Power Generation System, using an Integrated Electricity Networks and the Software EnergyPlus. For this end the Physical Characteristics of the building (size, thickness and color of the wall, type of coverage, number of occupants any environment, climate conditions of the region, etc.) and Power Generation (type Plates, Cell Number, Income boards and inverter yield, etc.) are considered. The benefits of using the Integrated System for Electric Power Network, its dimensioning and improving energy sustainability of the building, are also discussed.
Surface Cleaning and Modification by High Intense UV-Irradition for TiO2 Nanoparticle Films in Dye Sensitized Solar Cells
Authors: A. Kleine  , U. Hilleringmann
Published: April 2017

The preparation of the front electrodes in high efficient dye sensitized solar cells usually need high process temperatures to remove dispersal additives and to enable sintering effects. This leads to a reduction of the serial resistance caused by potential barriers inside the nano particulate TiO2 layer, and to a better dye adherence. Nevertheless this temperature treatment is not applicable on ITO-covered foils used for flexible devices, but this limitation can be partly compensated by an intensive UV-exposure. Furthermore it is possible to increase the efficiency of a sintered DSSC applying an additional UV-irradiation by about 26 %.
Sensorless control for active damping of torsional vibrations in wind turbine drivetrains with doubly-fed induction generator
Authors: Jan Wenske  , Ulrich Beckert
Published: April 2017

Until now, the most common drivetrain concept for multi megawatt wind turbines is still the classic design with multi-stage gearbox and fast running doubly-fed induction generator (DFIG). Some control strategies for damping of drivetrain torque oscilla tions already exist, but they based on mechanical sensors, e.g. speed and rotary encoders which can fail within the harsh envi ronment of a wind turbine. To reach the highest possible system reliability it is obvious trying to minimize the number of installed sensors. This contribution shows an innovative sensorless control method with great performance for DFIG coupled to highly oscillatory mechanical drive systems, such as in wind turbine drivetrains. The aim of the approach is, to reduce wear and increase service life by means of active damping torsional vibrations in the me chanical drivetrain during normal operation using a high reliable sensorless control system for the converter-fed generator. The outstanding feature of the control method is, that it requires no sensors for rotational angle, speed or shaft torque and considers the inherent highly oscillatory characteristic of geared drivetrains mostly equipped with DFIG. Therefore measuring of electrical quantities, that is the stator phase voltages and currents and rotor phase currents of a DFIG is sufficient, when using a combination of different observer struc tures for the electrical and mechanical subsystem of the drivetrain. The outcome is a sensorless field oriented vector and a state controller for effective active damping. The presented algo rithms are tested on a laboratory test rig, some of the results and measurements are presented here.
Estimate of Sustainable Production for the Development of Biogas Systems from Animal Biomass
Authors: D. H. da Silva  , E. Di Mauro
Published: April 2017

The research consists in the study of rural properties with the deployment of biodigesters, having as goal the biogas and energy production estimate of these properties, based on the theoretical model proposed for the development of a biogas system from animal's waste. The results obtained showed a divergence among them, where the theoretical estimates of biogas and energy are many times greater than the actual values of production, taking only in property Starmilk as real estimate greater than the theoretical. This discrepancy between results makes not viable new biogas projects. However, this is due to the lack of information about the animals and also about factors that may influence the biogas system. It is concluded that the present research showed to be satisfactory, because it is very important for the study of the real estimate generation of biogas and energy in properties with deployment of biodigesters, bringing a greater confidence to the owner interested in the aggregation of this source of renewable energy.
Optimal Voltage Sags Monitoring Considering Different Loading Profiles in Distribution Systems
Authors: T. R. Kempner  , F. A. Mourinho  , F. B. Bottura  , M. Oleskovicz  , J. C. M. Vieira  , J. R. Lima Filho
Published: April 2017

This research aims to assess the influence of different distribution systems loading profiles on the optimized placement process of Power Quality (PQ) monitors. Therefore it is presented a placement methodology that considers different loading profiles in the IEEE 34 nodes test feeder. The placement methodology is a branch and bound based algorithm which includes single phase short-circuits simulations with different fault resistances at each one of all considered loading profiles. An observability index is evaluated and introduced in the optimization process in order to prioritize monitors placement at the most sensitized nodes regarding voltage sags. Results reveal that the proposed placement methodology was able to provide feasible solutions, which contain the same placement nodes for all considered loading profiles. Thus, there are significant evidences that it is possible to properly carry out the optimal placement of PQ monitors, assuming the distribution system modeled and simulated without loads.
Power Quality in modern lighting: comparison of LED, microLED and CFL lamps
Authors: F. G. Montoya  , J. Castillo
Published: April 2017

This paper presents a study for the electric performance of different energy saving lamp types like LED, microLED and Compact Fluorescent Lamp (CFL), under nominal operating conditions (sinusoidal waveform of 230 Vrms and 50 Hz) along with abnomal conditions such swells, sags, notch or harmonic distortion in the voltage source. A set of diferent test is also carried out for the selected lamps to determine the power quality values.
Scaling a Biodigester Ascendant Flow for Biogas Production via Sewer and Solid Waste
Authors: Silva, J. R. da  , Ando Junior, O. H.  , Spacek, A. D.  , Mota, J. M.  , Malfatti, C. F.  , Furtado, A. C.
Published: April 2017

The residues originating from sewer pipes and urbane garbage need treatment before being discarded in the environment to avoid the contamination of grounds, water sheets and dissemination of diseases. Besides the bad smell and of being forts contaminants, these residues are still collaborators of the greenhouse effect due to the composition of the gases that comes from his decomposition. The high methane concentration in the composition of these gases favors the production of biogas, what can be converted in electric or thermal energy. The objective of this study is to conduct a case study of the implementation of a biodigester in a residential condominium, aiming for the treatment of the residues and use of a produced biogas, minimizing damage to the environment.
Potential of biogas production in an anaerobic digester solar assisted
Authors: P. Quinto  , H. Aguilar  , R. López  , A. Reyes
Published: April 2017

This article discusses an installation of anaerobic biodigestion aided by a heating system using solar energy to maintain the temperature inside the digester above the ambient temperature and thus increase the production of methane which can be used as fuel. The facility is located in Mexico City. In experimental tests a temperature difference of 10.14 ° C between the temperature inside the digester and room temperature was obtained. These results imply a potential for improvement in the production of biogas and methane yield of 16.6%. This improvement was achieved due to the use of the solar collector. The implementation of this technology involves stop issuing 13983.15 kg (CO2) per year for a 150 l digester volume operation.
Loadability Improvement in Distribution Network using DG Units by Application of Biogeography Based Optimization Algorithm Considering Cable Aging Constraint
Authors: Hossein Karami  , Seyed-Alireza Ahmadi  , Gevork B. Gharehpetian  , Vahid Vahidinasab
Published: April 2017

Erosion of equipment in power systems mainly cable aging play an important role in reliability of power system, especially in distribution network. Cable aging mostly happens due to metallic structure of power equipment such as cable sheathing erosion. Decreasing reliability of the system and higher risk of failure are some results of cable aging. One of the best way to mitigate the impact of this issue, is reduction of cable current flow by installing Distributed Generations (DGs) in power system. In this paper Biogeography Based Optimization (BBO) algorithm is used to improve voltage profile of the network considering cable aging constraint by optimal siting and sizing of DGs. The IEEE 33-bus standard network is used as the test system and load flow calculations are carried out by Backward/Forward sweep in this work. Three scenarios are investigated and the BBO algorithm is run in 500 iterations for each scenario. The results show the suitability of BBO for this problem in aspect of convergence and finding global optimum value.
Passive Cooling of Glazing Surfaces Using Solar Chimneys
Authors: A. Al Touma  , K. Ghali  , N. Ghaddar
Published: April 2017

The aim of this project is to reduce the cooling loads in spaces by decreasing the window temperature and solar radiation entrance through the use of a passive evaporative cooler combined with a solar chimney and with no additional energy consumption. The cooler provides heat and mass exchange that render the air capable of cooling the space in front of the window. On the other hand, the solar chimney works based on principles of buoyancy driven natural flows. Mathematical models of the evaporative cooler, glazing section, solar chimney are developed and integrated with a space model in an algorithm where the entire system is tested under different outdoor temperature and solar radiation conditions. As the outer glass temperature typically represents the temperature of the window without the installation of this system, reductions of 8% to 12% in the window temperatures were seen for an outdoor temperature of 30oC and a solar radiation of 300Wm2 and for small chimney sizes.
Thermal Experimental Investigation on Air Cooled PV Panel
Authors: A. Crăciunescu  , A. M. Croitoru  , G. Colț  , C. L. Popescu  , M. O. Popescu
Published: April 2017

The cooling of PV panels has the potential to reduce the cost of solar energy. By proper circulation of a fluid with low inlet temperature, heat can be extracted from PV modules, keeping the electrical efficiency at satisfactory values. In this paper, the dynamic of air cooled PV panels’ temperature are experimentally investigated. The following measurements were made: a) the PV panel open circuit voltage decreasing, in the absence of the cooling air forced circulation, from the moment when the PV panel was exposed to the Sun; b) the PV panel open circuit voltage increasing, in the presence of the cooling air forced circulation, starting from the initial value due of the captured solar radiation, measured in the absence of the cooling air forced circulation; c) the PV panel front temperature distribution during the increasing and decreasing of the panel temperature. Based on the results of these measurements, the parameters of a simple dynamic thermal model of the PV panel were estimated.
Application of Biogeography Based Optimization Algorithm in Voltage Profile Improvement of Distribution Network by using DSTATCOM Considering Cable Aging Constraint
Authors: Seyed-Alireza Ahmadi  , Hossein Karami  , Vahid Vahidinasab  , Gevork B. Gharehpetian
Published: April 2017

In this paper, Biogeography Based Optimization (BBO) algorithm is used to improve voltage profile of the distribution networks considering cable aging constraint and optimal siting and sizing of DSTATCOMs. Recently, researchers show the importance of cable aging effects in the planning of power systems. Cable aging mostly happens due to metallic structure of power equipment such as cable sheathing erosion. Decreasing reliability of the system and higher risk of failure are some results of cable aging. In order to overcome this issue in power system, one of the best methods is the reduction of cable current flow by installing Flexible Alternating Current Transmission System (FACTS) devices. FACTS devices can help to overcome the hazards that happen in the operation stage of power systems. In this regard, Distributed Static Compensator (DSTATCOM) is used here. The IEEE 33-bus standard network is used in our experimental studies as the test system and load flow calculations are carried out by Backward/Forward sweep method in this work. Three scenarios are investigated in the simulation and the BBO algorithm is used to find optimal sites and sizes for each scenario. The results obtained from BBO, show the privilege of the proposed method.
Research into harmonic power in the high-voltage networks
Authors: L. I. Kovernikova
Published: April 2017

The paper presents the results of studies on the harmonic active and reactive power at nodes of 110 kV and 220 kV networks. The studies were based on the measurements made at the node of 110 kV network supplying power to an aluminum plant and at the node of 220 kV network supplying power to railway traction substation. The supply networks belong to the Unified Energy Systems of Russia. Many other facilities with high-power nonlinear loads receive electric energy from these networks. They make their contribution to the formation of harmonic conditions across the networks. The measurements of currents and voltages were used to calculate active and reactive power for harmonics 2-40. The calculations show that although the considered facilities are the sources of harmonics and generate harmonic power to the supply networks they also receive harmonic power from them. The harmonic active power flows change directions during the measurements. Their values vary in a wide range and can reach several tens of kilowatts. The values of harmonic reactive power also vary in a wide range. They change the direction of the flow and affect the values of voltage, as a rule, at the characteristic harmonics of the nonlinear electrical equipment.
Study of the performance of an adiabatic cooling pad in an air cooler system
Authors: J. López  , F. Sánchez  , I. Arocas  , A. Viedma  , B. Zamora  , P. Martínez  , M. Lucas  , M. Hernández  , A. S. Káiser  , J. Ruiz
Published: April 2017

Adiabatic cooling pads are mostly used as a previous step for cooling systems, they cause the raise of the cooling system global efficiency. In this study, several types of pads have been analysed regarding on its compactness and thickness. The problem is addressed from an experimental, analytical and numerical point of view.. The validation of the temperature drop and cooling efficiency of the cooling pad numerical model is the main objective of this paper, and, in order to get this goal, Discrete Phase Model (DPM) of ANSYS Fluent software is used to calculate how water droplets, injected over the pad to cool the air, evaporate and how the continuous phase affect them. The results of this paper, focused to be a part of a complete cooling system analysis carried out by the research group, show the performance of an adiabatic cooling pad varying its width and compactness.
La sangre en la desaparición forzada: de la violencia a la filiación a través de la sangre
Authors: Casado-Neira David
Published: April 2017

Las prácticas de la desaparición forzada han sido un elemento central en los procesos de represión durante las dictaduras latinoamericanas. Ahora también la víctima de desaparición forzada emerge en España ligado al debate sobre la represión franquista y la recuperación de la memoria histórica. La afinidad del familismo y el lazo de la sangre cobran especial relevancia. La lucha por conocer la identidad y el destino de la persona desaparecida ha hecho de la antropología forense su herramienta por excelencia, lo que ha tenido impacto en las narrativas de la víctima contemporánea centradas ahora en el familismo. A efectos de identificaciones por muestras de ADN familia son las personas unidas por un lazo biológico que suponga la transmisión de material genético: filiación sanguínea.
Evaluation of gastric emptying time, gastrointestinal transit time, sedation score, and nausea score associated with intravenous constant rate infusion of lidocaine hydrochloride in clinically normal dogs
Authors: Johnson Rebecca A. , Kierski Katharine R. , Jones Brian G.
Published: April 2017

OBJECTIVE To quantify nausea and sedation scores, gastric emptying time, and gastrointestinal transit time after IV administration of a lidocaine hydrochloride bolus followed by a constant rate infusion (CRI) in clinically normal dogs.

ANIMALS 6 Beagles.

PROCEDURES In a crossover study, dogs were fed thirty 1.5-mm barium-impregnated spheres (BIPS) and received a saline (0.9% NaCl) solution bolus (0.05 mL/kg) IV (time 0) followed by a CRI at 10 mL/h, a lidocaine bolus (1 mg/kg) IV followed by a CRI at 25 μg/kg/min, or a lidocaine bolus (1 mg/kg) IV followed by a CRI at 50 μg/kg/min; CRIs were for 12 hours. Nausea and sedation scores were assessed and abdominal radiographs obtained immediately after feeding of BIPS and every hour for 12 hours and again 16 hours after CRI start. Percentage of BIPSs in the small and large intestines, gastric emptying time, and gastrointestinal transit time were assessed.

RESULTS Gastric emptying time did not differ significantly among treatments. Significantly more BIPS were in the large intestine 4 to 7 hours after treatment start for the 50-μg/kg/min treatment than for the other 2 treatments. Six hours after treatment start, significantly more BIPS were in the large intestine for the 25-μg/kg/min treatment than for the saline solution treatment. Higher sedation and nausea scores were associated with the 50-μg/kg/min CRI.

CONCLUSIONS AND CLINICAL RELEVANCE In clinically normal dogs, lidocaine CRI did not significantly affect gastric emptying. However, gastrointestinal transit time was mildly decreased and sedation and nausea scores increased in dogs administered a lidocaine CRI at clinically used doses.
Prasasti Tlaŋ (904 m.): Desa Perdikan untuk Tempat Penyeberangan Masa Matarām Kuna
Authors: Nastiti Titi Surti
Published: April 2017

Abstrak. Prasasti Tlaŋ yang dikeluarkan oleh Śrī Mahārāja Rakai Watukura Dyah Balitung Śrī Dharmmodaya Mahāśambhu pada tanggal 6 parogelap bulan Posya tahun 825 Śaka (11 Januari 903M.) menyebutkan nama desa tempat penyeberangan di tepi Bengawan Solo, yaitu Desa Paparahuan. Untuk pembiayaannya, Desa Tlaŋ, Desa Mahe/Mahai, dan Desa Paparahuan dijadikan desa perdikan. Tulisan ini bertujuan untuk membaca ulang Prasasti Tlaŋ dan mengidentifikasi Prasasti Wonoboyo serta mengidentifikasi desa-desa yang disebutkan dalam prasasti. Adapun metode yang dipakai dalam makalah ini adalah metode deskriptif analitis dan metode komparatif. Dari hasil penelitian dapat diidentifikasi dua desa, yaitu Desa Teleng dan Desa Paparahuan. Sementara Desa Mahe/Mahai masih belum dapat diidentifikasi dimana lokasinya. Sebagai kesimpulan dapat disebutkan bahwa selain dapat mengidentifikasi dua desa yang disebutkan dalam Prasasti Tlaŋ I dan Tlaŋ II, juga dapat mengidentifikasi Prasasti Wonoboyo sebagai Prasasti Tlaŋ III.Abstract. Tlaŋ inscription, issued by Śrī Mahārāja Rakai Watukura Dyah Balitung Śrī Dharmmodaya Mahāśambhu on the sixth day of the dark half of the month of Posya in 825 Śaka (11th January 904 A.D.), mentions the name of village that served as a river crossing place on the banks of the Solo River, i.e. Paparahuan village. To finance it, the Tlaŋ village, the Mahe/Mahai village, and Paparahuan village, become free hold. This paper aims to re-read the inscription of Tlaŋ as well as identifying Wonoboyo inscription and the villages which were mentioned in the inscription. The methods used in this paper are descriptive analytical method and the comparative method. As a result of this study, two villages can be identified, i.e the Tlaŋ village and Paparahuan village, while the location of Mahe/Mahai village still cannot be identified. As a conclusion may be mentioned that in addition to identifying the two villages mentioned in the inscription Tlaŋ I and Tlaŋ II, the study can also identify the Wonoboyo Inscription as Tlaŋ III inscription.
Situs Kesuben: Suatu Bukti Peradaban Hindu-Buddha di Pantai Utara Jawa Tengah.
Authors: Susetyo Sukawati
Published: April 2017

Sejarah kuno Indonesia mencatat bahwa masa sejarah tertua di Jawa Tengah adalah Kerajaan Matarām Kuno (abad ke-8-10). Pada waktu yang sama di pantai timur Sumatera terdapat Kerajaan Sriwijaya. Di lain pihak, berita Cina menginformasikan bahwa kerajaan di Jawa sudah ada pada abad ke-5, yaitu Ho-ling (She-po). Penelitian mutakhir di pesisir pantai utara Jawa Barat dan timur Sumatera memberikan bukti adanya hubungan antara Indonesia dengan bangsa asing berupa artefak-artefak dari luar negeri, meskipun tidak didukung oleh data prasasti. Hal tersebut memberikan petunjuk untuk mencari bukti awal hubungan dengan bangsa lain di daerah pesisir pantai. Penelitian di pesisir pantai utara Jawa Tengah ini dilakukan dengan survei, ekskavasi, dan wawancara mendalam, metode penulisan menggunakan metode deskriptif komparatif. Penelitian ini berhasil menambahkan data baru berupa temuan candi di Desa Kesuben, Kecamatan Lebaksiu, Kabupaten Tegal, Jawa Tengah.Temuan yang dihasilkan berupa struktur bangunan candi dari bata, antefiks-antefiks, dan arca batu. Hingga saat ini dari penelitian ini belum diketahui latar keagamaan Candi Kesuben karena belum ditemukan artefak yang mendukung. Abstract. The Indonesian Ancient History has recorded that the oldest historical period in Central Java was the period of the Ancient Matarām Kingdom (8th – 10th centuries CE). At the same period there was the kingdom of Srivijaya on the east coast of Sumatera. On the other hand, according to Chinese chronicles, there had been a kingdom in Java in 5th century CE, namely Ho-ling (She-po). Recent investigations along the north coast of West Java and the east coast of Sumatera have yielded evidences of relations between Indonesia and foreign countries in forms of imported artifacts, although this is not supported by inscriptions. This indicates that evidences of international relations have to be searched in coastal areas because it was where the relations began. The research on the north coast of Central Java was carried out in forms of survey, excavation, and thorough interviews, and the writing method is descriptive-comparative. This research has provided new evidence in form of a candi (temple) at Kesuben Village in Lebaksiu District, Tegal Regency, Central Java. The finds include structure of candi made of bricks, antefixes, and stone statues. Unfortunately we have not been able to identify the religious background of the Candi Kesuben (Kesuben Temple) because there has not been any artifact that can support the identification.
Improving Students’ vocabulary Mastery By Using Blended Learning Model in State Polytechnic Padang
Authors: Damaiyanti Muthia , Sari Indah
Published: April 2017

The research aims at improving the vocabulary mastery of students at Padang’s State Polytechnics for the 2015/2016 academic year by applying a blended learning model. Blended learning is an interactive learning model which combines face-to-face  with web-based learning. Vocabulary is a vital sub-skill in mastering a language and thus a suitable topic for a classroom action research (CAR). . The CAR theory applied is by Kemmis, S and McTaggart (2005) and the Blended Learning theory used is by Bersin (2004). The instruments are test, observation, field note and interview. Quantitative data are collected by a test result in which it is used to see how the student’s vocabulary mastery progresses after applying the blended learning model. Qualitative data gathered included observation, field note and interview analyzed descriptively in order to find out the factors affecting student’s vocabulary mastery by implementing blended

 

 
Engineering Improvement: Social and Historical Perspectives on the NAE’s “Grand Challenges”
Authors: Slaton Amy E.
Published: April 2017

The list of engineering "Grand Challenges" lately developed by the National Academy of Engineering enters a long historical tradition of such epically scaled to-do lists, dating back to the profession's U.S. origins in the mid-19th century. The mission statements, codes of ethics, and, later, lists of so-called grand challenges that have issued from engineering societies have served the dual function of directing engineers' work and supporting particular cultural roles for these bodies of experts. Almost all such plans, regardless of period or sponsoring body, have also blended highly practical aims of industrial and infrastructural development with more inchoate projects of societal uplift. The Grand Challenges of the NAE, currently playing a formative role in many engineering organizations and research and teaching settings, extend this lineage, working from a selective and self-confirming view of human welfare. We might bring to the Grand Challenges the type of critical, politically informed analysis that historians and STS scholars have brought to other sites of engineering activity and professionalization, to detect the nature of interests that underlay all such projections of engineering’s role in society. Who is served by the development of different technologies, products, and infrastructures? Who might be harmed? Most fundamentally, the Grand Challenges proceed from the premise that engineering research, construction, invention, and production are to take precedence over their absence, as befits a body dedicated not to the contraction of such enterprises but to their extension. Yet the interests of sustainability, global health, and other areas of human well-being might be best served in certain cases by just such a turning away from engineering. Making explicit the social and historical assumptions of the NAE’s Grand Challenges, and probing the implications of those assumptions for a diverse range of actors and communities, may pave the way for more thoughtful engagement with the humanistic and democratic potential of engineering.
I Have Seen the Future! Ethics, Progress, and the Grand Challenges for Engineering
Authors: Herkert Joseph R. , Banks David A.
Published: April 2017

This article is a critique of the U.S. National Academy of Engineering’s report, Grand Challenges for Engineering, based upon the “technocratic view” of progress as defined by historian Leo Marx and as exemplified by the public works of Robert Moses, including the 1964 World’s Fair, as well as technological determinist narratives on the digital age drawn from contemporary culture. While the so-called Grand Challenges purport to have social aims, a close reading of the document’s overview essay suggests that the technocratic view of progress—which views technology primarily as an end in itself rather than as a means to social progress and fails to explicitly account for engineers’ social and ethical responsibilities—still dominates the thinking of at least some leaders of the engineering profession. This technocratic thinking presents a critical barrier to achieving social justice both within engineering and in the larger world.
A New Vision for Mining Education – First Steps
Authors: Johnson Anne , Thorley Ursula
Published: April 2017

This paper narrates the experience of a Canadian university in reorienting its mining curriculum towards the goal of producing engineers who are sensitive to context. The authors acknowledge industry’s historical association with environmental degradation and imperialism, but counter that mining is necessary to provide the materials of civil infrastructure, particularly that required to reduce green-house gas emissions. They also point to the potential for mining projects to rejuvenate communities, by providing the revenues that support self-determination, suggesting that more equitable distribution of impacts and benefits may be achieved through engineering design that is better informed and sensitive to community perspectives.To promote such an approach to engineering design, the Robert M. Buchan Department of Mining at Queen’s University has instituted a program of curriculum re-positioning that is informed by theories of situated and transformative learning. This paper traces the first steps in the development and execution of curriculum that supports the development of student awareness of context and culture and a new contextually-sensitive approach to professional practice.
Merger Auditor dan Kualitas Audit: Bukti Empiris Dari Bursa Efek Indonesia
Authors: Butar-Butar Sansaloni
Published: April 2017

Merge rof Pricewaterhouse and Coopers & Lybrands that occurred in 1998 creates PricewaterhouseCoopers as the biggest accounting firm in history. Conceptually and supported by previous empirical result firm size is expected to be positively correlated with audit quality. Large accounting firms have financial ability to improve its auditors skill and can act more independently because major part of their income do not come from one or two clients. They spend huge investment in audit technology as well. However, this positive relationship only applies to environments where punishment is strictly imposed on audit failure. Unlike their counterparts in the United States and Europe, auditors working in Indonesia rarely face legal issues related to the audit assignment. In addition, empirical studies in Indonesia have always classified local auditors as Big N auditors if they affiliate with one of Big N auditors assuming same quality with that of Big N auditors. This assumption does not necessarily hold. Therefore, in the context of Indonesia environtments, this study predicts PricewaterhouseCoopers merger does not affect the quality of the audit. Using abnormal accruals as a proxy for audit quality, the results show that after the merger audit quality has declined significantly.
Dampak Liberalisasi Perdagangan Terhadap Kinerja Industri Manufaktur di Indonesia (Pendekatan Structure-Conduct-Performance)
Authors: Hidayat Hendy Aprilian , Farah Alfa
Published: April 2017

The influx of imported goods in the domestic market will pressure domestic producers to be more efficient. The more effiecient the domestic firm, the more competitive it becomes. This competitive firm is expected to have opportunities to expand to a larger market. This study analyzed the effect of trade liberalization to industrial performance in Indonesia. This study exploited data at the industry level, ie: 38 industries of three digits International Standard Industrial Classification (ISIC) during 2000-2009. The analysis was conducted within Structure Conduct Performance (SCP) framework. Industrial performance was measured by price-costmargin and trade liberalization was measured by export share and a dummy indicating implementation of Asean Free Trade Area (AFTA). Using the fixed effect model, the result showed weak evidence of the effect of trade liberalization to industrial performance in Indonesia. Dummy AFTA was negative and significant to industrial performance while export share was insignificant. The results might indicate that the adoption of AFTA endangered domestic firms’ performance.