bluuebunny/crossref_metadata_2025 huggingface dataset:
Políticas educativas e identidades organizacionais: ambiguidades e hibridismo
Authors: Faria Susana
Published: April 2017

Vários estudos têm demonstrado que, um pouco por todo o mundo, as transformações ocorridas no campo educativo por influência da nova gestão pública apontam para uma certa hegemonia do ideal empreendedor de organização. Se é verdade que, a partir da década de 1990, as organizações escolares se tornaram mais burocráticas porque o investimento na ‘qualidade’ foi formalizado, estruturado e associado à estrutura hierárquica das instituições, não podemos deixar de atentar a certos traços identitários próximos do ‘empreendedorismo’, ou que alguma vez tenham perdido de vista o ideal profissional. Ao refletir sobre o processo de transformação identitária das organizações escolares, aquilo que procuramos demonstrar neste texto, é que à entrada da 2ª década do século XXI, os agrupamentos de escolas portugueses se estão a tornar ‘empreendedores’ porque pressionados pela ‘ecologia de mercado’, reorientando-se, crescentemente, para a prestação de contas, para a satisfação dos seus ‘públicos’ e para a construção de uma imagem que lhe seja favorável nas relações de troca que estabelece com diferentes partes. Mas isso, não significa que alguma vez tenham deixado de ser burocraticamente geridas e que os profissionais docentes tenham deixado de exercer as suas próprias pressões.
Estruturação temática dos Planos Estaduais de Educação 2001-2010: deficiências e debilidades
Authors: Menezes Janaina Specht da Silva , Souza Donaldo Bello de
Published: April 2017

Este artigo, que deriva de um estudo de maior extensão temática, de cunho qualitativo e exploratório, visa a fornecer alguns subsídios críticos às adequações e formulações que o novo Plano Nacional de Educação (PNE) – Lei n. 13.005, de 25 de junho de 2014 – implica para os Planos Estaduais de Educação (PEEs), notadamente em termos da sua estruturação temática, tomando por base empírica a análise do conjunto de planos aprovados durante o período de vigência do PNE 2001-2010. A guisa de conclusão, postula que algumas das deficiências desse plano nacional vieram a reproduzir-se nos PEEs examinados, somando-se a outras debilidades produzidas por estes mesmos planos infranacionais, colocando em dúvida sua exequibilidade e efetividade para a gestão local da educação.
Computational Study of Flow over Cascade Arrangement of Bluff Bodies with Different Geometries
Authors: Kumar Anurag , Sachendra Sachendra , Singhal Manish
Published: April 2017

Most of the structures in flowing water are a challenge to their stability and sustainable with different flow conditions. Recent, renewable energy research and development covers ocean and river energy platform in which flow of water drag considered in various conversion devices towards the offshore and onshore establishment. Various energy platforms have been suggested for offshore development. However, the stability of these platforms in water is a serious concern. To study the water interaction over circular and square cross-section cascade system under the water has been carried out. Water flow around the pillars or column of the energy platform are analyzed through simulation software. Very low velocity 0.5 m/s has been considered to analyze the system. Total fifteen numbers of cascade pillars having circular and square cross-section area were considered. K-ε turbulence model is adopted to calculate the flow interaction to the column. A velocity, pressure, and energy fields are found around the column. 
Impact of Information and Communication Technology on Service Quality of Banking Sector: A Comparative Study of Private and Public Sector Banks in Gwalior and Chambal Region
Authors: Vashisht Anil
Published: April 2017

This paper studies the impact of IT in the service quality of banking sector. The purpose of the intended research involves determining bank adoption pattern of electronic media, factors constituting drivers and inhibitors for bank adoption, dimensionality of e-banking services quality as affected by IT, and customer adoption of such services. The study has also highlighted the determinants of service quality are directly influenced by IT and to explore what are the enabling and retarding factors for effective implementation and upsurge of IT system in banks.
The Changing Role of Marketing in the Third Millennium
Authors: Sreedharan Reshma , KR Rehin
Published: April 2017

In the 21st century, any marketer has to face stiff competition due to the dynamic environment. Nowadays, marketers are offering more value to the customers so that they can gain a competitive advantage. The present customers are now digitally conscious and are opposing the traditional way of marketing. The marketers have to identify the new techniques which can be used to target the new millennium customers and earn sizeable profits. This paper focuses on the emerging marketing trends and its repercussions.
Natural Correction and Adaptation of a Severely Deformed Sacral Dome in an Adolescent with Isthmic Spondylolisthesis
Authors: Yamashita Kazuta , Higashino Kosaku , Sakai Toshinori , Takata Yoichiro , Nagamachi Akihiro , Sairyo Koichi
Published: April 2017

Case:

A spinal deformity with wedging of L5 and rounding of the surface of the sacral dome is very common in pediatric patients with spondylolisthesis at the L5 vertebral level, and it has been well documented that severe spondylolisthesis is a good indication for spinal arthrodesis. We report the natural correction and adaptation of a severely deformed sacral dome with slippage (40.8%) in a pediatric patient with nonoperative treatment.

Conclusion:

Vertebral deformity in children can be reversible. Orthopaedic surgeons should be aware that pediatric patients with a severe deformity of the sacral dome and vertebral slippage can be managed nonoperatively.
Periosteal Ewing Sarcoma in a 65-Year-Old Man
Authors: Bedard Julia , Burns Jessica , de Comas Amalia
Published: April 2017

Case:

Ewing sarcoma is predominantly a pediatric bone malignancy involving the medullary canal. Periosteal Ewing sarcoma, a subtype arising from the periosteum, is exceedingly rare, with approximately 30 reported cases in the literature. We describe a case of periosteal Ewing sarcoma in the tibia of a 65-year-old man. Magnetic resonance imaging revealed a heterogeneous mass in the proximal tibial diaphysis without medullary involvement. The diagnosis was confirmed histologically after biopsy. The patient was treated with neoadjuvant chemotherapy, radical resection, and adjuvant chemotherapy.

Conclusion:

To the best of our knowledge, this case report describes the oldest documented patient with periosteal Ewing sarcoma.
John Oldham y la poesía satírica inglesa de la Restauración
Authors: GARCÍA CALDDERÓN Ángeles
Published: April 2017

Trabajo que se ocupa de la vida y obra de uno de los cuatro poetas satíricos más relevantes del período de la Restauración inglesa: John Oldham. Después de una breve revisión histórica al clima moral y soclopolítlco de la época, se analiza su obra satírica más notable, y la que tuvo más repercusión: Satyr upon the Jesuits, panegírico contra las conjuras papistas en Inglaterra de un joven poeta, que no llegó a desarrollar toda su capacidad creativa debido a su temprana muerte.
Autotraducción: un caso particular. El caso de los textos médicos publicados en revistas científicas
Authors: BALLIU Christian
Published: April 2017

Estudio que versa sobre la autotraducción de textos médicos. Se inicia el trabajo con un acercamiento a los conceptos de “traducción” y “autotraducción”, para después abordar la autotraducción de textos médicos, analizando la oposición denotación-connotación y la relación existente entre connotación y autotraducción.
La traducción del arte: una operación de mediación intercultural "estéticamente" condicionada
Authors: ORTEGA ARJONILLA Emilio , MARTÍNEZ LÓPEZ Ana Belén
Published: April 2017

Resumen: Este trabajo forma parte de la investigación traductológica que han realizado los autores sobre un catálogo de arte con ocasión de la exposición Man Ray: Yo soy un enigma. El objeto del mismo es, más que hacer un comentario, reflexionar sobre la teoría de la traducción en el ámbito especializado del arte. Éste, es entendido como una manifestación cultural que debe interpretarse desde los supuestos inherentes a la propia especificidad del tema. Ofrecemos algunos ejemplos que obraban en dicho catálogo.
Problemas encontrados en la traducción del español al italiano de los cuentos del libro Historias máginas del Mayab de Javier Gómez Navarrete
Authors: ZANIER VISINTIN M. C. Alessio
Published: April 2017

Al empezar el trabajo de traducción al italiano del libro de cuentos “Historias Mágicas del Mayab”, descubrí la existencia de la cosmogonía Maya, una sabia concepción del mundo y de la vida diametralmente opuesta a la pseudo filosofía occidental que supone la inevitabilidad de una globalización con tintes extremadamente nefastos. Los cuentos nos llevan a otra visión de la realidad, fundada sobre la búsqueda del equilibrio y de la armonía con lo que nos rodea, descrita con impactante sencillez. El autor me ayudó mucho al explicarme unos tratos característicos de los Mayas, mientras que las notas al pié de página en el texto original aclarecieron el significado de palabras y términos absolutamente desconocidos. La estructura de los textos, con oraciones breves, me llevó a utilizar estrategias de traducción directa, sin tener que recurrir muy a menudo a transformaciones o modulaciones. Sin embargo, en el caso de una reedición de la obra, una revisión de la versión en italiano resultaría aconsejable y enriquecedora.
Embedding TEL in an initial course in Teaching & Learning in HE: a co-design approach
Authors: Robinson Francesca
Published: April 2017

This research project explored how best to embed the use of social web tools in an initial teacher education programme by involving participants in the design process. A mixed-methods approach was used to find out participants’ experience of participatory learning using social web tools and interest in learning more about their use in higher education as part of the course. It also sought out participants’ preferred ways of learning and levels of interest in giving and receiving peer support. Results indicate that overall many participants have experience of using a range of social web tools as students, professionally or for personal use. The social web tools most participants selected to learn more about were cloud-based software for creating slides and topic curation tools and the least popular choices were video and podcast creation for courses or as assignments for students. Although participants expressed interest in a range of ways of learning, using the technology as part of a session and reading a bi-monthly newsletter were the most popular means. A proposal for introducing social web tools into the programme was made following on from the findings and the activities have been reviewed and adapted as part of an ongoing process.
Editor's Introduction
Authors: Tran Danielle
Published: April 2017

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Nitrifying Kinetics and the Persistence of Nitrite in the Seine River, France
Authors: Raimonet M. , Cazier T. , Rocher V. , Laverman A. M.
Published: April 2017

Although a higher oxidation rate for nitrite than for ammonia generally prevents nitrite accumulation in oxic waters, nitrite concentrations in the Seine River (1–31 μM) exceed European norms. We investigated the kinetics of in situ ammonia‐ and nitrite‐oxidizing communities in river water and wastewater treatment plant (WWTP) effluents to determine the role of pelagic nitrification in the origin and persistence of nitrite downstream of Paris. The main source of nitrite is the major Parisian WWTP, and its persistence, up to tens of kilometers downstream of the plant, is explained by low ammonia and nitrite oxidation rates and high river flow. Furthermore, similar nitrite and ammonia oxidation rates preclude a rapid consumption of both preexisting nitrite and nitrite produced by ammonia oxidation. Maximum ammonia oxidation rates are two to three times higher downstream than upstream of the WWTP, indicating the input of ammonia oxidizers and ammonia from the WWTP. In both river water and WWTP effluents, nitrite oxidizers were unable to oxidize all available nitrite. In the human‐impacted Seine River, this phenomenon might be due to mixotrophy. This study highlights the low resilience of the river to nitrite contamination as well as the importance of managing nitrite, nitrifiers, and organic matter concentrations in WWTP effluents to avoid nitrite persistence in rivers.

Core Ideas

Nitrite in the Seine River mostly originates from wastewater treatment plant effluents.

Nitrite persists in the river because of similar ammonia and nitrite oxidation rates.

Despite high nitrite concentrations, relatively low nitrite oxidation rates occur, possibly due to mixotrophy.
Potential Environmental Benefits from Blending Biosolids with Other Organic Amendments before Application to Land
Authors: Paramashivam Dharini , Dickinson Nicholas M. , Clough Timothy J. , Horswell Jacqui , Robinson Brett H.
Published: April 2017

Biosolids disposal to landfill or through incineration is wasteful of a resource that is rich in organic matter and plant nutrients. Land application can improve soil fertility and enhance crop production but may result in excessive nitrate N (NO3−–N) leaching and residual contamination from pathogens, heavy metals, and xenobiotics. This paper evaluates evidence that these concerns can be reduced significantly by blending biosolids with organic materials to reduce the environmental impact of biosolids application to soils. It appears feasible to combine organic waste streams for use as a resource to build or amend degraded soils. Sawdust and partially pyrolyzed biochars provide an opportunity to reduce the environmental impact of biosolids application, with studies showing reductions of NO3−–N leaching of 40 to 80%. However, other organic amendments including lignite coal waste may result in excessive NO3−–N leaching. Field trials combining biosolids and biochars for rehabilitation of degraded forest and ecological restoration are recommended.

Core Ideas

Landfilling or burning biosolids is an expensive waste of a valuable resource.

High rates of biosolids restore degraded soil but cause excessive nitrate leaching.

Combining biosolids with other biowastes can mitigate nitrate leaching.

Dried, but not wet, wood waste effectively mitigates nitrate leaching.

Partial pyrolysis of wood waste may provide energy‐neutral drying.
Aku dalam Kehinaanku!: Menafsir Kehinaan Menurut Julia Kristeva
Authors: Kristianto Paulus Eko
Published: April 2017

Abjection normally is understood as the gross taste. However, whether such humiliation is also understood when placed in the frame of philosophy? Julia Kristeva states abjection with regard to aesthetics in art and literature through poetry catharsis. That is through abjection, people are invited to immerse themselves further in selfhood. The key phrase is trying held by the author in this article outlines. The author tries to offer an alternative that has been wrapped Kristeva debasement in the language of the interface between semiotics and symbolism.
Análisis estructural de dos áreas del matorral espinoso tamaulipeco del noreste de México
Authors: Pequeño-Ledezma Miguel Angel , Alanís-Rodríguez Eduardo , Jiménez-Pérez Javier , Aguirre-Calderón Oscar Alberto , González-Tagle Marco Aurelio , Molina-Guerra Victor Manuel
Published: April 2017

Se evaluó la composición, estructura y diversidad vegetal de dos áreas del matorral espinoso tamaulipeco (loma y valle) para conocer sus principales diferencias o similitudes. El matorral de porte bajo se ubica en lomeríos, donde el suelo es somero, mayormente pedregoso y la disponibilidad de agua en la zona se limita a las temporadas de lluvia de la región, mientras que el matorral de porte alto se localiza en una zona de caudal intermitente el cual aparece en temporadas de lluvias y forma un cuerpo de agua temporal y los suelos son profundos. En cada área se establecieron 3 sitios de muestreo de 40 m × 40 m para evaluar la vegetación arbórea y arbustiva. Se estimó el índice de valor de importancia y la diversidad (alfa y beta) así como el índice de similitud de Sorensen Cuantitativo. En total se registraron 17 especies pertenecientes a 11 familias y 15 géneros. La familia con mayor presencia en el estudio fue Fabaceae con 7 especies. El área de matorral con porte alto presentó 14 especies, mientras el área de matorral en porte bajo presentó solamente 7 especies. Las comunidades evaluadas presentan una similitud baja (19%). Mediante la presente investigación se concluye que los dos tipos de matorrales presentes en la zona de estudio registran diferencias significativas entre sí en densidad, área de copa, riqueza y diversidad. Asimismo se concluye que comparten cuatro especies del total de 17 presentes en ambas zonas de estudio.
An Assessment of the Relationship between Urban Air Quality and Environmental Urban Factors in Urban Regeneration Areas
Authors: Egercioglu Yakup , Ozcan Nur Sinem
Published: April 2017

Urban air pollution has been increasing due to ever increasing population, rapid urbanization, industrialization, energy usage, traffic density. The purpose of the study is to examine the relation between urban air quality and urban environmental factors in urban regeneration areas. Two common air polluters (SO2 and PM10) are considered in the study. The data are collected for Cigli district, including the level of air pollutants, the local natural gas service lines and planning decisions for the years between 2007 and 2011. According to the examinations, urban environmental factors and planning decisions affect the urban air quality in urban regeneration areas.
Department of Neuroscience, University of Connecticut School of Medicine, 263 Farmington Avenue, Farmington, CT 06032, USA
Authors:   Department of Neuroscience, University of Connecticut School of Medicine, 263 Farmington Avenue, Farmington, CT 06032, USA, Yeh Mason L. , Levine Eric S. ,   Department of Neuroscience, University of Connecticut School of Medicine, 263 Farmington Avenue, Farmington, CT 06032, USA
Published: April 2017

Autism spectrum disorders (ASDs) are diagnosed on the basis of three behavioral features, namely, (1) deficits in social communication, (2) absence or delay in language and (3) stereotypy. The consensus regarding the neurological pathogenesis of ASDs is aberrant synaptogenesis and synapse function. Further, it is now widely accepted that ASD is neurodevelopmental in nature, placing emphasis on derangements occurring at the level of intra- and intercellular signaling during corticogenesis. At present, there is an ever-growing list of mutations in putative susceptibility genes in affected individuals, preventing effective transformation of knowledge gathered from basic science research to the clinic. In response, the focus of ASD biology has shifted toward the identification of cellular signaling pathways that are common to various ASD-related mutations in hopes that these shared pathways may serve as more promising treatment targets than targeting individual genes or proteins. To this end, the endogenous cannabinoid (endocannabinoid, eCB) system has recently emerged as a promising therapeutic target in the field of ASD research. The eCB system is altered in several neurological disorders, but the role of these bioactive lipids in ASD etiology remains poorly understood. In this perspective, we review current evidence linking eCB signaling to ASDs and put forth the notion that continued focus on eCBs in autism research may provide valuable insight into pathophysiology and treatment strategies. In addition to its role in modulating transmitter release at mature synapses, the eCB signaling system plays important roles in many aspects of cortical development, and disruption of these effects of eCBs may also be related to ASD pathophysiology.
Post Hoc Analyses of Randomized Clinical Trial for the Effect of Clopidogrel Added to Aspirin on Kidney Function
Authors: Ikeme Jesse C. , Pergola Pablo E. , Scherzer Rebecca , Shlipak Michael G. , Benavente Oscar R. , Peralta Carmen A.
Published: April 2017

Background and objectives

Despite the high burden of CKD, few specific therapies are available that can halt disease progression. In animal models, clopidogrel has emerged as a potential therapy to preserve kidney function. The effect of clopidogrel on kidney function in humans has not been established.

Design, setting, participants, & measurements

The Secondary Prevention of Small Subcortical Strokes Study randomized participants with prior lacunar stroke to treatment with aspirin or aspirin plus clopidogrel. We compared annual eGFR decline and incidence of rapid eGFR decline (≥30% from baseline) using generalized estimating equations and interval-censored proportional hazards regression, respectively. We also stratified our analyses by baseline eGFR, systolic BP target, and time after randomization.

Results

At randomization, median age was 62 (interquartile range, 55–71) years old; 36% had a history of diabetes, 90% had hypertension, and the median eGFR was 81 (interquartile range, 65–94) ml/min per 1 m2. Persons receiving aspirin plus clopidogrel had an average annual change in kidney function of −1.39 (95% confidence interval, −1.15 to −1.62) ml/min per 1.73 m2 per year compared with −1.52 (95% confidence interval, −1.30 to −1.74) ml/min per 1.73 m2 per year among persons receiving aspirin only (P=0.42). Rapid kidney function decline occurred in 21% of participants receiving clopidogrel plus aspirin compared with 22% of participants receiving aspirin plus placebo (hazard ratio, 0.94; 95% confidence interval, 0.79 to 1.10; P=0.42). Findings did not vary by baseline eGFR, time after randomization, or systolic BP target (all P values for interaction were >0.3).

Conclusions

We found no effect of clopidogrel added to aspirin compared with aspirin alone on kidney function decline among persons with prior lacunar stroke.
The new Brazilian Space: Amazônia Azul and its implications
Authors: Wiesebron Marianne L.
Published: April 2017

A Brazilian Admiral coined the concept Amazônia Azul or Blue Amazon, to draw attention to the incredible size of the country’s jurisdictional waters and to all the resources they contain, living, mineral including offshore oil and gas. These waters represent nearly 4.5 million km2 , which equals over 50% of the country’s land surface. However, to create this space with this enormous size, the Brazilian Interministerial Commission for Sea Resources (CIRM), coordinated by the Navy, had to be quite ingenious to follow the rules of the United Nations Convention on the Law of the Sea (UNCLOS). This article studies first the establishment of the space Amazônia Azul, then how this space is being developed in a sustainable way, and how its defence is being set up. The policies of defence created by the Lula Government are also quite innovative, and, in particular, the technology transfer with strategic military partners warrants special attention.
O Programa Institucional de Bolsas de Iniciação à Docência (PIBID) e as relações público/privadas no ensino superior
Authors: Rodríguez Margarita Victoria , Severino Jorismary Lescano , Maciel Caroline , Brito Silvia Helena Andrade de
Published: April 2017

O objeto deste trabalho é o Programa Institucional de Bolsas de Iniciação à Docência (PIBID), sendo seu objetivo analisar a regulamentação e a aprovação de bolsas e subprojetos do PIBID, sob a perspectiva da relação público/privada no ensino superior. Para tal, o procedimento metodológico utilizado foi a análise da legislação do Programa, bem como os dados disponibilizados nos relatórios do PIBID. Isto posto, é evidenciado que, embora pese o caráter neoliberal na organização do Programa, com relação à parceria público/privada, o maior volume de bolsas e projetos aprovados ainda estavam com o setor público, até 2013. Algumas tensões são apresentadas nessa perspectiva, mas elas também evidenciam a precarização do ensino superior privado e a característica assistencialista do programa.
As reformas da educação superior e as metamorfoses do trabalho docente na economia capitalista flexível
Authors: Bechi Diego
Published: April 2017

O presente trabalho visa compreender de que forma e em que medida as políticas educacionais de caráter neoliberal, articuladas aos padrões de reestruturação econômica global, têm intervido sobre a natureza e as condições do trabalho docente nas instituições de ensino superior (IES) públicas e privadas. Primeiramente, faz-se uma análise das reformas de modernização do Estado - cujas propostas têm acelerado o processo de mercantilização da educação superior - e das alterações em curso no mundo do trabalho e da produção para posteriormente refletir sobre os efeitos provocados pela lógica de acumulação capitalista (neoliberalismo/produção flexível) em relação à natureza e as condições do trabalho docente. Para tanto, parte-se do pressuposto de que as transformações na estrutura produtiva e política do capitalismo têm provocado o direcionamento das políticas educacionais a favor dos interesses mercantilistas e a consequente submissão do trabalho docente à lógica do capital.
Social, Demographic and Labour Market Related Determinants of Health in the Adult European Population
Authors: Santha Agnes Rozsa
Published: April 2017

This paper identifies the social, demographic and labour market related determinants of the state of health and assesses the magnitude of their impact within the European adult population. The research is based on a statistical analysis on the data of the European Social Survey (ESS), round 7, 2014/2015. Subjective socioeconomic situation and partnership status are being identified as the most influential social determinants of health. Results also illuminate how work-life-balance determines health. People suffering from work-life-imbalance are more likely to become ill than those with more free time and flexible working hours.
The Causes of Changes in Fertility in Northern Namibia
Authors: Notkola Veijo , Siiskonen Harri , Shemeikka Riikka
Published: April 2017

The main aim of this study was to analyse fertility change in Ovamboland (North-Central Namibia) (1927–2010) and the Kavango region (North-East Namibia) (1935–1979) in Northern Namibia. According to the results, the fertility change was quite similar in both areas: fertility declined during the 1950s compared to the preceding period, 1935–1949. We can assume that the main reason for this early fertility decline was changes in the number of migrant workers (out-migration), which caused changes in both the marriage age and birth intervals. In both Ovamboland and in the Kavango region, fertility increased from the late 1950s into the early 1960s and the fertility transition started at the end of the 1970s. In both areas, the increase in fertility during thelate 1950s and early 1960s was probably due to the improved health situation. Fertility transition started at the end of the 1970s, but mortality had already started to decline before that. The main causes of this declining fertility at the end of the 1970s and during the 1980s were improved access to modern methods of contraception and probably also the increased level of education. As a result of the HIV epidemic, mortality increased in Ovamboland at the end of the 1990s and early 2000s. The declining fertility in the same period was probably linked to this increased mortality due to AIDS, while the increased fertility after 2008 is, in turn, probably linked to management of the HIV epidemic.
Spatial trends of fertility rates in Finland between 1980 and 2014
Authors: Lainiala Lassi , Berg Venla
Published: April 2017

Recent research has shown that in many Western countries fertility rates are highest in suburban areas and lower in urban and rural areas. Here, we illustrate the changing patterns of spatial fertility in Finland between 1980 and 2014. Fertility in Finland started conforming the high suburban pattern during the 1990’s. This interestingly predates the first large scale urban sprawl (i.e., positive net migration in suburban areas) in the first decade of the 21st century in Finland.
Study on the Potential Use of Electrochromic Materials for Solar Energy Harvest in Brazil Market
Authors: Da Rosa, H. B.  , Ando Junior, O. H.  , Furtado, A. C.  , Spacek, A. D.  , Mota, J. M.  , Bilessimo, L. D.  , Malfatti, C. F.  , Santana, M. V. F de
Published: April 2017

This paper presents a review of the characteristics of electrochromic materials, the concepts developed in recent years, the trends and forms of applications of these materials. The purpose of this paper consists in the use of an electrochromic material such as diffusion component and thermal / light control in a tubular system of natural lighting. The interest in the use of this material comes from the fact that them can control the transmission or light reflection, as well as control the transport of heat and selectivity of ultraviolet light. The condition for changing of their selectivity characteristics occur with the application of an electric current. Therefore, your application can spread to different areas, for example the products related to the automotive industry, construction, aerospace, military use, entertainment, among others. This fact arouses interest in research of new applications and the improvement of technique, as proposed in this work is the study of electrochromic material to a tubular lighting system. This proposal comes as a solution to assistance in temperature control and an ambient lighting, contributing to the quality level of illuminance and the climate of the location, factors that directly impact the reduction of the electricity cost.
Design and development of a test environment to analyze the impact of cyber attacks on the electrical distribution network
Authors: Ioannis Moschos  , David Lavérnia Ferrer  , J.-I. Cairó
Published: April 2017

Extensive use of information and communication technology infrastructure (ICT) in today’s electrical networks is empowering the Smart Grid growth, but at the same time lays the foundation for cyber threats to the more vulnerable premises of the system. The purpose of this work is twofold. First, to build a simulation environment that covers the impact assessment of cyber attacks on a distribution network´s power components. Second, to propose a testbed architecture which will be comprised from the aforementioned simulation tool combined with a hardware-implemented microgrid. The final cyber-to physical environment would provide a more accurate embodiment of information data flow through real communication paths. This will enable developing, integrating and conceiving cyber attacks’ impact on realistic scenarios. The testbed environment would have a strong emphasis on Distributed Renewable Energy Resources (DER). The power system simulation tool used in this work is DIgSILENT Powerfactory. IREC’s microgrid SmartLab facilities are utilized in the complete test bed formulation.
Development and Implementation of an Autotransformer Fasor Controller in Zigzag ( ADZ) on ATPDraw Software 4.0
Authors: M. Antonio Eduardo Ceolin  , M. Walkyria Krysthie Arruda Gonçalves  , M. Ronan Marcelo  , M. Tais  , R.  Machsuel Francisco  , K. Guilherme Yuji
Published: April 2017

This paper aims to present the performance of a computationally implemented model of a special autotransformer called ADZ [1]. This zigzag autotransformer allows mitigating the harmonic content produced by power converters as well as varying the power flow by means of controlling voltage phasors. Thus, due to its principle of operation that will be addressed here, ADZ can be considered as a FACTS device in dealing with power quality problems. Furthermore, the steps to the implementation of the model in the well-known ATPDraw (Alternative Transient Program), which can be followed so as to create other templates, will be summarized. Finally, the performance analysisof the implemented model are made through case studies.
Consideration on the effects of DERs in the PLC communication channel
Authors: J.-I. Cairo  , Jordi Pegueroles  , Fernando Martín  , Maite Hormigo
Published: April 2017

In the intend to use the transmission and distribution power lines as a communication channel, much attention has been provided in the modeling of the transmission media used for the propagation of the signals that transmit the information. Most of this effort has been applied in the broadband propagation characteristics, due to higher bandwidth and the use of higher frequencies that can avoid some interference [1]. In this paper it is proposed a method to better understand parameter differences between line characterization in the different frequencies of interest for Power Line Communications (PLC) applicable to analytically determine the channel model, by analyzing the effects of reflections due to the nodes and branch lines impedance mismatches that are present at the distribution power lines. Nowadays such methodology is empirically determined, so this new approach intends to facilitate the modeling methodology prior to its implementation.
An experience of distant consumers power supply by means of the renewables given specific conditions
Authors: Andrew V. Pazderin  , Vladislav O. Samoylenko  , Stanislav A. Eroshenko
Published: April 2017

Local renewable energy resources (RES) are often considered as an alternative to the conventional power supply by means of power lines. This is an urgent approach for rural electrification if there are long distances from main substations, and distribution feeders’ construction and service is not cost effective for grid companies. Nevertheless, the real potential for RES implementation at some regions could be limited by economic, geographical and climatic factors especially. The paper gives a review of the experience of power supply type selection for distant consumers given the specific northern continental conditions. The main goal of the paper is the methods estimating technical and economical efficiency of power supply system alternatives including centralized power supply and standalone microgrid implementation to select suitable power supply variant.
Flicker Propagation in Power Networks with Hybrid and Parallel Overhead Transmission Lines
Authors: A. Novitskiy  , I. Konotop  , D. Westermann
Published: April 2017

The growth of the energy generation from renewable sources necessitates the construction of new overhead transmission lines for the energy transport over long distances. The use of common right of ways (ROW) for several overhead lines becomes more and more popular. The construction of combined AC/DC hybrid power lines is one of possible solutions. The spatial proximity of several power lines in the common ROW intensifies electromagnetic interferences between the lines. These interferences can cause deteriorations of power quality parameters in power grids containing parts with common ROWs. The influence of electromagnetic interferences on the flicker propagation in power networks with hybrid and parallel overhead transmission lines is considered in the offered paper.
Super-twisting controllers for wind turbines
Authors: C. Tutiv´en  , Y. Vidal  , L. Acho  , J. Rodellar
Published: April 2017

The main contribution of this paper is to propose new control techniques which not only provide fault tolerance capabili ties to the WT system, but also improve the overall performance of the system in both fault free and faulty conditions. Coupled non linear aero-hydro-servo-elastic simulations of an offshore wind tur bine with jacket platform are carried out. The proposed controllers are based in the super-twisting algorithm (STA) by using feedback of the generator shaft speed as well as the fore-aft and side-to-side acceleration signals of the WT tower.
Production of synthesis gas from dry reforming of propane with carbon dioxide over ceria-promoted nickel foam catalysts
Authors: J. Karuppiah  , E. Linga Reddy  , M.S.P. Sudhakaran  , S.B. Lee
Published: April 2017

A series of nickel foam supported cerai catalysts (ceria/NiF) for dry reforming of propane with carbon dioxide were prepared and their performance were evaluated at temperatures in the range of 520-600°C. Among the catalysts examined the 4 wt.% CeO2/NiF exhibited better low-temperature activity for the DRP, which is attributed to the formation of well- isolated nanosize CeO2 particles and highly reducible metal oxide species over the NiF support. The XPS and temperature programmed reduction (TPR) data also supported the incorporation of ceria into the NiO surface layer formed over NiF support, which was substantially higher in 4% CeO2/NF catalyst. Due to these favorable properties, the 4 wt.% CeO2/NiF could be considered as an excellent catalyst for DRP.
A Study of the Induction Motor/ASD Immunity in the Presence of Voltage Sags
Authors: Juan Carlos Gómez  , Medhat M. Morcos
Published: April 2017

Adjustable speed drives (ASDs) are sensitive to power quality problems, especially voltage sags. The effect of the magnitude and duration of voltage sags on ASD behavior is related to the energy deficit. On the other hand, the induction motor operation is sensitive to voltage sags in regard to the re start possibility as well as the drop in the motor speed. ASD and induction motor immunities need to be coordinated, being presented the required methodology. A complete study of the involved equipment immunities is needed in order to obtain a better behavior in the presence of voltage sags.
New Application Rules for Fuses in Low and Medium Voltage Grids having Distributed Generation
Authors: Juan Carlos Gómez  , Daniel Humberto Tourn
Published: April 2017

The fuse is a well-established protective device which application in distribution systems (DG) need to be re-analyzed. Distribution systems having embedded DG introduce changes into the fault current and thus in the selective coordination studies. The emerging problems are presented, new methodologies and solutions are introduced. If none of the two methodologies possesses the required ability, then the application of more sophisticated protection devices should be analyzed. With this procedure the best solution from the technical and economic points of view could be obtained.
La ciudad contemporánea y la experiencia del paisaje cíborg
Authors: Aragon Palacios Juan Milton
Published: April 2017

Se define el paisaje cíborg como aquel que representa la intersección entre la Naturaleza y la tecnociencia. Elementos de los cuales obtienen los esquemas desde donde se construye y significa a partir del magma que lo dota del aura e imaginario. Por lo tanto, es posible que en este correlato es donde fragua el magma del que emergen las significaciones primarias y secundarias que nos permiten ubicar la fantasmagoría de las ciudades contemporáneas.
Managing Forest Conflicts: Perspectives of Indonesia’s Forest Management Unit Directors
Authors: Fisher Larry A. , Kim Yeon-Su , Latifah Sitti , Mukarom Madani
Published: April 2017

Recent expansion of the forestry and plantation sectors in Indonesia has intensified agrarian and natural resource conflicts, and created increased awareness of the social, economic and environmental impacts of these disputes. Addressing these disputes is a critical issue in advancing Indonesia’s commitment to sustainable forest management.  The Forest Management Units (Kesatuan Pengelolaan Hutan, or KPH), have become the pivotal structural element for managing all state forests at the local level, with responsibility for conventional forest management and policy implementation (establishing management boundaries, conducting forest inventory, and developing forest management plans), as well as the legal mandate to communicate and work with indigenous people and local communities.  This paper presents the results of a national survey of all currently functioning KPH units, the first of its kind ever conducted with KPH leadership, to obtain a system-wide perspective of the KPHs’ role, mandate, and capacity for serving as effective intermediaries in managing forest conflicts in Indonesia. The survey results show that the KPHs are still in a very initial stage of development, and are struggling with a complex and rapidly evolving policy and institutional framework. The most common conflicts noted by respondents included forest encroachment, tenure disputes, boundary conflicts, and illegal logging and land clearing.  KPH leadership views conflict resolution as among their primary duties and functions, and underscored the importance of more proactive and collaborative approaches for addressing conflict, many seeing themselves as capable facilitators and mediators. Overall, these results juxtapose a generally constructive view by KPH leadership over their role and responsibility in addressing forest management conflicts, with an extremely challenging social, institutional, and political setting. The KPHs can certainly play an important role as local intermediaries, and in some cases, as facilitative mediators in resolving local conflicts, but only with a more concerted effort from central and provincial government authorities to provide greater consistency in policies and regulations, improved policy communication, and a sustained commitment to strengthening the capacity of individual KPHs.
Gua Kidang, Hunian Gua Kala Holosen di Das Solo
Authors: Nurani Indah Asikin , Hascaryo Agus Tri
Published: April 2017

Gua Kidang merupakan hunian manusia prasejarah yang diteliti Balai Arkeologi Yogyakarta sejak tahun 2005 dan masih berlanjut sampai sekarang. Berdasarkan survey permukaan di seluruh kawasan karst Blora, Gua Kidang adalah satu-satunya gua yang layak huni. Hal tersebut didasarkan pada morfologi lahan, sirkulasi sinar matahari, kemiringan, kelembaban, serta temuan permukaan. Tujuan penulisan ini adalah untuk menelusuri dan mengungkap jejak lokasi situs yang menjembatani kesinambungan antara kebudayaan Pleistosen dan Holosen yang masih gelap. Selain itu, menarik untuk dikaji lebih jauh adalah lokasi gua ini dikelilingi situssitus Pleistosen, yang pada hasil penelitian terakhir pada tahun 2013, memberikan titik terang. Metode yang digunakan adalah ekskavasi di Gua Kidang dan analisis terhadap temuan-temuan arkeologis, stratigrafi dan lingkungan. Berdasarkan hasil penelitian selama tujuh kali, disimpulkan bahwa Gua Kidang merupakan gua yang intensif dihuni manusia prasejarah dengan tinggalan yang lengkap, berupa artefak, fitur, dan ekofak, serta rangka Homo sapiens.Abstract. Kidang Cave is a habitation of prehistoric people, which has been studied by the Yogyakarta Archaeological Centre since 2005 and still continues until now. A survey over the surface of the karst region of Blora reveals that Kidang Cave is the only habitable cave based on the morphology of the land, circulation of sunlight, slant, humidity, and surface finds. Thisarticle tries to explore and unveil traces of the site location that serves as a chronological bridge of continuity between the Pleistocene and the Holocene cultures, which is still obscure. In addition, it is interesting to note that further study is needed pertaining to the location of the cave, which is surrounded by Pleistocene sites that during the last research in 2013 has shed some light on that matter. The methods employed here are excavation at Kidang Cave and analyses on archaeological finds, stratigraphy, and the environment. Based on results of seven times of researches, it can be concluded that Kidang Cave had been intensively inhabited by prehistoric people and contains wide-ranging finds, which include artifacts, features, and ecofacts, as well as skeletons of Homo sapiens.
Balung Buto dalam Persepsi Masyarakat Sangiran: Antara Mitos dan Fakta
Authors: Handini Retno
Published: April 2017

Abstrak. Tulisan ini merupakan kajian tentang “balung buto”, sebuah mitos atau kepercayaan masyarakat yang menghuni wilayah penemuan fosil-fosil purba di Jawa. Penelitian ini difokuskan di Situs Sangiran sebagai Situs Warisan Dunia untuk memahami pola pikir dan persepsi masyarakat penghuni situs dalam memandang keberadaan fosil yang banyak ditemukan di sekitar lahan tegalan atau pekarangan mereka. Metode yang digunakan adalah wawancara mendalam pada masyarakat yang  tinggal di Sangiran. Hasil penelitian menunjukkan walaupun saat ini sudah semakin ditinggalkan dan tidak lagi diturunkan pada generasi muda, namun mitos “balung buto” masih mempengaruhi pola pikir dan perilaku kalangan tertentu yang mempercayainya. Hal tersebut secara langsung ataupun tidak berdampak pada pencarian fosil dan pelestarian situs.Abstract. This article is a study on ‘balung buto’ (which means giant’s bone), a myth or belief shared by the communities that live in areas where prehistoric fossils are found in Java. The study is focused at the World Heritage Site of Sangiran to understand the way of thinking and perception of the inhabitants around the site in viewing the existence of fossils, which are found in abundance on their agricultural fields or house yards. The method used here is insightful interview with the people who live at Sangiran. The study reveals that although believed by less and less people and no longer inherited to the young generation, there are some people who still believe the myth. To them the myth of ‘balung buto’ still influences their pattern of thoughts and behaviour so that directly or indirectly it has impacts on fossil-collecting behaviour and site preservation.
Prospek Sumber Daya Arkeologi Prasejarah Pulau Rote Ndao dalam Konteks Pengembangan Kawasan Perbatasan
Authors: Nasruddin Nasruddin
Published: April 2017

Abstract. The potential of cultural heritage especially prehistoric sites along the karst hills on Rote island has significant value in the context of understanding and knowledge about archeology in East Nusa Tenggara. Cave sites in Rote island were started to be inhabited since the late Pleistocene and early Holocene, based on the presence of human settlement traces found in the caves and niches. Another historical evidence was a bronze axe which showed that Rote Island was a strategic region on Paleometalic era. The fragments of potteries, flakes, animal bones, dan mollusc shells found in the area sprang some questions if this area was used only as a settlement or had any other purposes. The aim of this research is to reveal the archaeological resources owned by the island, along with its geological condition. The method applied in this study is using field observation (survey) followed by excavation on prehistory sites that represent Rote Ndao human settlements. Numerous lithic artifacts were gathered for reasearch data, such as flakes, pottery, and mollusc shell and bone deposits. These data about prehistoric karst in Rote Ndao island have important value to reveal the migration path, particularly its geographic position as the foremost island and borderline region between East Timor and Australia. Abstrak. Potensi warisan budaya terutama situs-situs prasejarah di sepanjang bukit-bukit karst di Pulau Rote memiliki nilai penting dalam konteks pemahaman dan pengetahuan arkeologi Nusa Tenggara Timur. Situs-situs gua karst di Pulau Rote, dimulai pada masa akhir Pleistosen dan awal Holosen dengan adanya jejak-jejak hunian manusia di gua dan ceruk. Bukti historis lainnya adanya temuan kapak perunggu yang menunjukkan bahwa Pulau Rote merupakan wilayah yang strategis pada era paleometalik. Ditemukannya berbagai jenis pecahan tembikar, serpih dan fragmen tulang fauna, sisa-sisa makanan moluska menimbulkan beberapa pertanyaan terhadap lokasi ini di masa lalu, apakah situs ini memiliki fungsi hunian semata, ataukah mempunyai fungsi lain. Tujuan penelitian ini untuk mengungkap sumberdaya arkeologi beserta kondisi geologi yang dimiliki Pulau Rote. Metode yang digunakan yaitu melakukan observasi lapangan (survei) dan dilanjutkan dengan ekskavasi terhadap situs yang memiliki indikasi kuat sebagai hunian prasejarah Rote dan dianggap mewakili situs hunian prasejarah Rote Ndao. Dari penelitian ini diperoleh sejumlah data artefak litik berupa alat-alat serpih, tembikar dan deposit cangkang moluska dan tulang. Potensi data arkeologi (prasejarah karst) Pulau Rote Ndao memiliki nilai penting untuk mengungkap jalur migrasi, terutama posisi geografinya sebagai pulau terdepan dan wilayah perbatasan antara Timor Leste dan Australia.