bluuebunny/crossref_metadata_2025 huggingface dataset:
SYNTHETIC APERTURE SONAR IMAGES SEGMENTATION USING DYNAMICAL MODELING ANALYSIS
Authors: Conti Luis Américo , Baptista Murilo
Published: March 2017

ABSTRACT. Symbolic Models applied to Synthetic Aperture Sonar images are proposed in order to assess the validity and reliability of use of such models and evaluate how effective they can be in terms of image classiﬁcation and segmentation. We developed an approach for the description of sonar images where the pixels distribution can be transformed into points in the symbolic space in a similar way as symbolic space can encode a trajectory of a dynamical system. One of the main characteristic of approach is that points in the symbolic space are mapped respecting dynamical rules and, as a consequence, it can possible to calculate quantities thatcharacterize the dynamical system, such as Fractal Dimension (D), Shannon Entropy (H) and the amount of information of the image. It also showed potential to classify image sub-patterns based on the textural characteristics of the seabed. The proposed method reached a reasonable degree of success with results compatible with the classical techniques described in literature.Keywords: Synthetic Aperture Sonar, image processing, dynamical models, fractal, seabed segmentation. RESUMO. Este estudo apresenta uma proposta de metodologia para segmentação e classiﬁcação de imagens de sonar de Abertura Sintética a partir de modelos de Dinâmica Simbólica. Foram desenvolvidas, em um primeiro momento, técnicas de descrição de registros de sonar, com base na transformação da distribuição dos pixels da imagem em pontos em um espaço simbólico, codiﬁcado a partir de uma função de interação, de modo que as imagens podem ser interpretadas como sistemas dinâmicos em que trajetórias do sistema podem ser estabelecidas. Uma das características marcantes deste método é que, ao descrever uma imagem como um sistema dinâmico, é possível calcular grandezas como dimensão fractal (D) e entropia de Shannon (H) além da quantidade de informação inerente a imagem. Foi possível classiﬁcar, posteriormente, características texturais das imagens com base nas propriedades dinâmicas do espaço simbólico, o que permitiu a segmentação automática de padrões de “backscatter” indicando variações da geologia/geomorfologia do substrato marinho. O método proposto atingiu um razoável grau de sucesso em relação à acurácia de segmentação, com sucesso compatível com métodos alternativos descritos em literatura.Palavras-chave: sonar de abertura sintética, processamento de imagens, modelos dinâmicos, fractal, segmentação.
ARCHAEOLOGICAL PROSPECTION IN SOUTHEASTERN PARÁ STATE, BRAZIL USING GEOPHYSICAL METHODS: A CASE STUDY OF SÍTIO DOMINGOS
Authors: Luiz José Gouvêa , Pereira Edithe Da Silva
Published: March 2017

ABSTRACT. Magnetic, resistivity and ground-penetrating radar (GPR) methods were applied to Sítio Domingos, a Brazilian archaeological site located in Pará State, to ﬁnd objects buried by an ancient civilization that may have inhabited the site. Archaeological excavations based on the locations of magnetic anomalies reveal a concentration of ceramic fragments and pots. The correlation between the resistivity models and the soil proﬁle of the study area suggests that the resistivity range of 2000 to 2500 ohm-m represents the archaeological occupation layer. Several anomalous features detected by GPR are correlated with magnetic anomalies. However, when these features are analyzed independently of the magnetic anomalies, they do not conclusively represent the objects being searched. Therefore, GPR is not recommended as the main tool for archaeological prospection in the study area.Keywords: magnetometry, electrical resistivity, GPR, archaeological excavation. RESUMO. Os métodos magnético, resistividade e radar de penetração no solo (GPR) foram aplicados no Sítio Domingos, um sítio arqueológico brasileiro localizado no Estado do Pará, para encontrar objetos enterrados por uma civilização antiga que pode ter habitado a região. Escavações arqueológicas com base nos locais de anomalias magnéticas revelaram uma concentração de fragmentos de cerâmica e vasos. A correlação entre os modelos de resistividade e do perﬁl do solo da área de estudo sugere que a faixa de resistividade de 2000-2500 ohm-m representa a camada de ocupação arqueológica. V´arias feições anômalas detectadas pelo GPR são correlacionáveis com anomalias magnéticas. No entanto, quando essas feições são analisadas independente das anomalias magnéticas, elas não representam de forma conclusiva os objetos que est~so sendo procurados. Portanto, o GPR não é recomendado como a principal ferramenta de prospecção arqueológica na área de estudo.Palavras-chave: magnetometria, resistividade elétrica, GPR, escavação arqueológica.
AIRBORNE GRAVITY GRADIOMETRY – DATA PROCESSING AND INTERPRETATION
Authors: Carlos Dionisio Uendro , Braga Marco Antonio , Galbiatti Henry F. , Pereira Wanderson Roberto
Published: March 2017

ABSTRACT. This paper discusses some processing techniques (all codes were implemented with open source software) developed for airborne gravity gradient systems, aiming at outlining geological features by applying mathematical formulations based on the potential ﬁeld properties and its breakdown into gradiometric tensors. These techniques were applied to both synthetic and real data. These techniques applied to synthetic data allow working in a controlled environment, under- standing the different processing results and establishing a comparative parameter. These methodologies were applied to a survey area of the Quadrilátero Ferrífero to map iron ore targets, resulting in a set of very helpful and important information for geological mapping activities and a priori information for inversion geophysical models.Keywords: processing, airborne gravity gradiometry, iron ore exploration, FTG system, FALCON system. RESUMO. Neste trabalho apresentamos algumas técnicas de processamento (todos os códigos foram implementados em softwares livres) desenvolvidas para aplicação aos dados de aerogradiometria gravimétrica. Os processamentos foram aplicados tanto a dados sintéticos como a dados reais. A aplicação a dados sintéticos permite atuar em um ambiente controlado e entender o padrão resultante de cada processamento. Esses mesmos processamentos foram aplicados em uma área do Quadrilátero Ferrífero para o mapeamento de minério de ferro. Todos os resultados desses processamentos são muito úteis e importantes para o mapeamento geológicoe como informação a priori para modelos de inversão geofísica.Palavras-chave: processamento, dados de aerogradiometria gravimétrica, exploração de minério de ferro, sistema FTG, sistema FALCON.
UPPER QUATERNARY SEA LEVEL FLUCTUATIONS AND STILLSTANDS ON THE CONTINENTAL SHELF OF SÃO PAULO STATE, BRAZIL: A SUMMARY
Authors: Furtado Valdenir Veronese
Published: March 2017

ABSTRACT. Sea level ﬂuctuations are mainly related to glacial and deglacial events. São Paulo (Brazil) continental shelf shows many features, like terraces and sedimentary scarps, associated to older periods of sea level stillstands and drowned valleys, related to regressive and transgressive events. Although these features show well deﬁned spatial position obtained through bathymetric analysis; they lack isotopic dating, which prevents from obtaining more accurate space-temporal positions. However, correlations with similar depths along the Brazilian continental shelf and the dating of a feature in the area enabled us to elaborate an estimated sea level variation curve for São Paulo continental shelf and coastal areas, since the Last Glacial Maximum. Keywords: sea level ﬂuctuations, bottom topography, sedimentary features, São Paulo continental shelf. RESUMO. As ﬂutuações relativas do nível do mar, de caráter global, estão associadas a eventos climáticos de glaciação e degelo. Embora não tenham ocorrido glaciações no hemisfério sul, durante o Quaternário, exceto na Antártica, a plataforma continental de São Paulo apresenta feições morfológicas ligadas à última glaciação e ao período pós-glacial subsequente. Caracterizam-se por terraços e escarpas sedimentares, associados a períodos de estabilizações do nível do mar e paleo- canais ﬂuviais afogados, relativos ao Último Máximo Glacial e à posterior transgressão marinha. Essas feições, embora com posições espaciais bem deﬁnidas, através de análises batimétricas, apresentam lacunas de datação isotópica que não permitem o estabelecimento de posições espaço-temporais mais precisas. No entanto, correlações com profundidades similares ao longo da plataforma continental brasileira e datação de uma feição na área, permitiram a elaboração de uma curva tentativa de variação do nível do mar, desde o Último Máximo Glacial, para a plataforma continental de São Paulo e áreas costeiras. Palavras-chave: ﬂutuações relativas do nível do mar, topograﬁa de fundo, feições sedimentares, plataforma continental de São Paulo.
STRATIGRAPHY OF WANDA GLACIER, KING GEORGE ISLAND, ANTARCTICA, USING GROUND PENETRATING RADAR
Authors: Rosa Kátia Kellem da , Fernandez Guilherme Borges , Rocha Thais Baptista da , Simões Felipe Lorenz , Vieira Rosemary , Simões Jefferson Cardia
Published: March 2017

ABSTRACT. We present the results of a high-frequency Ground Penetrating Radar (GPR) surveys carried out during the ablation season of 2011, in Wanda Glacier, King George Island (KGI), Antarctica, aimed to determine its internal structure and thermal regime. GPR data were collected along 17 longitudinal and transversal sections in the ablation area in January 2011. Migrated and topographically corrected radar sections show strong internal reflectors in firn layer. Similar internal structure is observed in other glaciers in KGI. Strong scattering of radio waves are attributed to supraglacial, englacial and subglacial meltwater channels and constitutes further evidence that the ice in the ablation area of this glacier is temperate. Because of its small size (1.5 km2) and thermal conditions, Wanda Glacier responds rapidly to climatic changes being relevant for environmental studies. Keywords: glaciology, thermal regime, glacial dynamic.    RESUMO. O trabalho apresenta resultados de dados de GPR de alta frequência obtidos durante a estação de ablação de 2001, na geleira Wanda, Ilha Rei George (KGI), Antártica, com o objetivo de determinar a estrutura interna e o regime termal. Dados de GPR foram coletados em 17 perfis longitudinais e transversais na área de ablação em janeiro de 2011. Perfis de radar topograficamente corrigidos e migrados mostram fortes refletores internos na camada de firn . Estruturas similares foram observadas em outras geleiras da KGI. Fortes espalhamentos das ondas de rádio são atribuídas a canais de água de degelo nas zonas subglaciais, supraglaciais, e englaciais e constituem evidências para que o gelo na zona de ablação seja temperado. Devido à sua pequena dimensão (1,5 km2) e condições termais, a geleira Wanda responde rapidamente as mudanças climáticas, o que é relevante para estudos ambientais. Palavras-chave: glaciologia, regime termal, dinâmica glacial.
CHARACTERIZATION OF THE POTIGUAR RIFT STRUCTURE BASED ON EULER DECONVOLUTION
Authors: Rodrigues Rafael Saraiva , Castro David Lopes de , Júnior João Andrade dos Reis
Published: March 2017

ABSTRACT. The Euler deconvolution is a semi-automatic interpretation method of potential field data that can provide accurate estimates of horizontal position and depth of causative sources. In this work we show the application of 3D Euler Deconvolution in gravity and magnetic maps to characterize the rift structures of the Potiguar Basin (Rio Grande do Norte and Ceará States, Brazil) using the structural index as a main parameter, which represents an indicator of the geometric form of the anomalous sources. The best results were obtained with a structural index equal to zero (for residual gravity anomalies) and 0.5 (for magnetic anomalies reduced to the pole), a spatial window size of 10 km, which is used to determine the area that should be used in the Euler Deconvolution calculation, and maximum tolerance of error ranging from 0 to 7%. This parameter determines which solutions are acceptable. The clouds of Euler solutions allowed us to characterize the main faulted limits of the Potiguar rift, as well as its depth, dip and structural relations with the Precambrian basement. Keywords: Euler deconvolution, potential field, structural index, Potiguar rift.    RESUMO. A deconvolução de Euler é um método de interpretação semiautomático de dados de métodos potenciais, capaz de fornecer uma estimativa da posição horizontal e da profundidade de fontes anômalas. Neste trabalho, mostraremos a aplicação da deconvolução de Euler 3D em mapas gravimétricos e magnéticos para caracterizar as estruturas rifte da Bacia Potiguar (RN/CE), utilizando como principal parâmetro o índice estrutural, que representa um indicador da forma geométrica da fonte anômala. Os melhores resultados foram obtidos com um índice estrutural igual a zero (para as anomalias gravimétricas residuais) e 0,5 (para as anomalias magnéticas reduzidas ao polo), tamanho da janela espacial igual a 10 km, que ´e utilizada para determinar a área que deve ser usada para o cálculo da deconvolução de Euler, e tolerância máxima do erro variando de 0 a 7%, que determina quais soluções são aceitáveis. As nuvens de soluções de Euler nos permitiram caracterizar os principais limites falhados do rifte Potiguar, bem como suas profundidades, mergulho e relações estruturais com o embasamento Pré-cambriano. Palavras-chave: deconvolução de Euler, métodos potenciais, índice estrutural, rifte Potiguar.
PROPOSAL OF CHANGE DETECTION IN LAND COVER FOR PIPELINE MONITORING FROM RAPIDEYE AND IKONOS IMAGES
Authors: Riedel Paulina Setti , Marques Mara Lúcia , Ferreira Mateus Vidotti , Delaneze Marcelo Elias
Published: March 2017

ABSTRACT. The goal of this study was to improve and evaluate the applicability of a methodological procedure of pipeline monitoring to reveal indicators of thirdparty activities that may interfere with the structural preservation of pipes and environmental damages. The procedure was developed from the technique of changedetection through object-based classification of land cover, using high resolution satellite images applied to a section of the Guararema-Mauá – São Paulo pipeline, Brazil. In the seven-month monitoring period performed with RapidEye imaging, an area of 2.024 km2 was identified as area of change, corresponding to 3.30% of thetotal area analyzed. For the monitoring performed with Ikonos imaging during a four-month period, changes were detected in an area of 0.187 km2, which correspondedto 1.92% of the total area analyzed. The main changes in land cover were from Bare Soil to Grassland, due to changes related to the different stages of agriculturalactivity and reforestation areas, as well as the natural regeneration of vegetation over the pipeline and solid waste landfill. The results of the change detection of landcover from object-based classification were close to the technique reference limit for areas with great complexity and diversity of space occupation.Keywords: structural preservation of pipes, object-based classification, high resolution satellite images. RESUMO. Este estudo teve por objetivo avaliar a aplicabilidade de um procedimento metodológico de monitoramento de faixas de dutos que revelem indicativos deatividades de terceiros que podem interferir na integridade estrutural dos dutos e provocar danos ambientais. O procedimento foi desenvolvido a partir da técnica dedetecção de mudanças na cobertura da terra pela classificação baseada no objeto, com utilização de imagens orbitais de alta resolução. Este procedimento foi empregadoem um trecho da faixa de dutos Guararema-Mauá – SP, no monitoramento realizado por meio de imagens RapidEye. Em um período de sete meses, foram identificados 2,024 km2 como área de mudança, que corresponde a 3,30% do total da área analisada. Para o monitoramento realizado a partir da imagem Ikonos, com período de quatro meses, foi identificada como mudança uma área de 0,187 km2, correspondendo a 1,92% do total da área analisada. As principais mudanças ocorridas foramentre Solo Exposto e Vegetaçao Rasteira, devido às alterações ocorridas nos estágios de cultivo agrícola e áreas de reflorestamento, como também, estão associadas às áreas de regeneração da vegetação da faixa de dutos e aterro sanitário. Os resultados da detecção de mudanças da cobertura da terra pela classificação baseada no objeto atingiram acertos próximos ao limite de para esta técnica, em áreas com grande complexidade e diversidade de ocupação do espaço.Palavras-chave: integridade estrutural dos dutos, classificação baseada no objeto, imagens orbitais de alta resolução.
RESUMOS DE TESES E DISSERTAÇÕES
Authors: SBGf Sociedade Brasileira de Geofísica
Published: March 2017

Resumos de teses e dissertações
PROCESSING AND IMAGING OF MARINE SEISMIC DATA FROM THE JEQUITINHONHA BASIN (BAHIA, BRAZIL)
Authors: Leite Lourenildo W.B. , Mann J. , Vieira Wildney W.S.
Published: March 2017

ABSTRACT. The present case study results from a consistent processing and imaging of marine seismic data from a set collected over sedimentary basins of the East Brazilian Atlantic. Our general aim is... RESUMO. O presente artigo resulta de um processamento e imageamento consistentes de dados sísmicos marinhos de levantamento realizado em bacias sedimentares do Atlântico do Nordeste...
INTERPRETATION OF MAGNETIC DATA BASED ON EULER DECONVOLUTION: ANALYSIS OF THE MAIN HOST GOLD STRUCTURE IN THE NORTHEASTERN PORTION OF THE QUADRILÁTERO FERRÍSouth America, mineral prospecting, Euler deconvolution.FERO, MG, BRAZIL
Authors: Madeira Thiago José Augusto , Barbosa Maria Silvia Carvalho , Borges Antonino Juarez
Published: March 2017

ABSTRACT. The study of the geometry and kinematics of deep geological structures, bearing mineralization, has advanced greatly by the aggressive progress of geophysical techniques over the last decades... RESUMO. O estudo da geometria e cinemática de estruturas geológicas de alta profundidade, portadoras de mineralizações, tem sido cada vez mais viabilizado pelo avanço agressivo...
DETERMINATION OF THE STACKING VELOCITY FIELD VIA OPTIMIZATION METHODS
Authors: Oliveira Danian Steinkirch de , Porsani Milton José , Cunha Paulo Eduardo Miranda
Published: March 2017

ABSTRACT. We developed a strategy for automatic Semblance panels pick, that uses Genetic Algorithm optimization method. In conjunction with restrictions and penalties set from a priori information... RESUMO. Foi desenvolvida uma estratégia de pick automático dos painéis de Semblance , que usa método de otimização Algorítmo Genético. Em conjunto com restrições...
HYDRODYNAMICS AND PARTICULATE SUSPENDED MATTER TRANSPORT IN A SHALLOW AND HIGHLY URBANIZED ESTUARY: THE COCÓ ESTUARY, FORTALEZA, BRAZIL
Authors: Freitas Pedro Paulo De , Menezes Maria Ozilea Bezerra , Schettini Carlos Augusto França
Published: March 2017

ABSTRACT. This study evaluates the hydrodynamics of the Coc´o river estuary (Fortaleza, Ceará, Brazil). Two 25-hour campaigns were carried out in different tide conditions during summer... RESUMO. Este estudo avalia a hidrodinâmica do estuário do rio Cocó (Fortaleza, Ceará). Duas campanhas de 25 horas foram realizadas em diferentes condições de maré durante o verão.
INTEGRATED TECHNIQUES FOR DETERMINING THE VELOCITY FUNCTION IN THE SEISMIC REFLECTION: EXAMPLE OF LOW SIGNAL-TO-NOISE DATA
Authors: Revorêdo Rodrigo Francis , Silva Carlos César Nascimento da
Published: March 2017

ABSTRACT. In the hydrocarbon exploration activities, the reprocessing of old seismic reflection data, acquired with few channels and with low signal-to-noise ratio, is commonly undertaken to ameliorate the quality and reliability of the seismic images...Keywords: seismic processing, velocity analysis, CVS. RESUMO. É comum na exploração de hidrocarbonetos o reprocessamento de dados sísmicos antigos, por vezes com um baixo número de canais e baixa razão sinal/ruído, com o objetivo de gerar uma imagem de melhor qualidade e confiabilidade quando comparada àquelas já existentes...Palavras-chave: processamento sísmico, análise de velocidades, CVS.
SINGULAR VALUE SELECTION AND GENERALIZED CROSS VALIDATION IN MULTI-FREQUENCY SEISMIC DIFFRACTION TOMOGRAPHY FOR CO2 INJECTION MONITORING
Authors: Silva Caio Jean Matto Grosso da , Bassrei Amin
Published: March 2017

ABSTRACT. Regardless of whether the cause of the greenhouse effect is anthropogenic, carbon dioxide (CO2) exacerbates global warming because it contributes directly to the increased temperature of the planet. In a geologic context, CO2 can occur in conjunction with porous oil reservoirs...Keywords: seismic diffraction tomography, reservoir monitoring, Gassmann’s equation, CO2 injection RESUMO. Independentemente se a causa do efeito de estufa é antropogênico, o dióxido de carbono (CO2) agrava o aquecimento global porque contribui diretamente para o aumento da temperatura do planeta. Em um contexto geológico, o CO2 pode ocorrer em conjunto com reservatórios de petróleo porosos.Palavras-chave: tomografia sísmica de difração, monitoramento de reservatórios, equação de Gassmann, injeção de CO2.
A clustering and selection based transfer ensemble model for customer credit scoring
Authors: Xiao Jin , Xie Ling , Liu Dunhu , Xiao Yi , Hu Yi
Published: March 2017

Customer credit scoring is an important concern for numerous domestic and
global industries. It is difficult to achieve satisfactory performance by
traditional models constructed on the assumption that the training and test
data are subject to the same distribution, because the customers usually come
from different districts and may be subject to different distributions in
reality. This study combines ensemble learning with transfer learning, and
proposes a clustering and selection based transfer ensemble (CSTS) model to
transfer the instances from related source domains to target domain for
assisting in modeling. The experimental results in two customer credit
scoring datasets show that CSTE model outperforms two traditional credit
scoring models, as well as three existing transfer learning models.
The impact of aging on urban housing demand based on CGE
Authors: Linlin Zhu , Xiuting Li , Jichang Dong
Published: March 2017

The population of China has been aging quickly in recent years, which will
profoundly affect the housing market. This paper aims to analyze the effect of
aging on urban housing demand. First, a general equilibrium model with an
overlapping generation structure is established to analyze theoretically the
effect of aging. Then, this paper uses GAMS software to simulate and forecast
the change trend in urban housing demand. Finally, based on the research
sample of 287 large and medium-sized cities in China in 2010, this paper
uses ArcGis9.3 software to study empirically the influence of aging on urban
housing demand and concludes that aging can increase urban housing demand.
The impact of media reputation on customers behavioral intention - the contextual stepwise approach
Authors: Lu Hao-Te , Wang Yi-Chou
Published: March 2017

This study employed both quantitative and qualitative approaches to discuss
the impacts of media reputation on customers behavioral intentions. A total
of 322 completed questionnaires were analyzed, and found that theoretical
framework and uncovered strong links between a numbers of hypothesized
antecedent and behavioral intentions. The variable which made the largest
contribution to prediction of media reputation from customers is social
responsibility. Moreover, fifteen qualitative interviews were conducted. The
owner-managers, however, have different points of view, they have thought
about their restaurants reputation, but it not come from the media. The main
contribution drawn from this study is to connect the media reputation from
both sides, one side being the customers and the other the owner-managers of
Chinese restaurants.
Supercapacitors based on graphene/pseudocapacitive materials
Authors: Sacer Denis , Kralj Magdalena , Sopcic Suzana , Kosevic Milica , Dekanski Aleksandar , Rokovic-Kraljic Marijana
Published: March 2017

Composites of graphene and SnO2 were successfully prepared by a single step simultaneous synthesis of SnO2 and reduction of graphene oxide (GO). Three different compositions of precursor solution resulted in different composite materials containing graphene and SnO2. The reaction was realized by microwave-assisted hydrothermal synthesis. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) gave insight into the morphology and composition of the obtained materials. Good capacitive/pseudocapacitive properties of the obtained material suitable for supercapacitor application were registered by cyclic voltammetry, from where specific capacitance values up to 93 F g-1 were determined.
Antibacterial and antifungal properties of guanylhydrazones
Authors: Ajdacic Vladimir , Lazic Jelena , Mojicevic Marija , Segan Sandra , Nikodinovic-Runic Jasmina , Opsenica Igor
Published: March 2017

A series of novel guanylhydrazones were designed, synthesized and characterized. All the compounds were screened for their antibacterial and antifungal activity. Compounds 26 and 27 showed excellent antibacterial activities against Staphylococcus aureus ATCC 25923 and Micrococcus luteus ATCC 379 with minimal inhibitory concentrations of 4 ?g mL-1, and good antifungal activity against Candida parapsilosis ATCC 22019. These results suggested that the selected guanylhydrazones could serve as promising leads for improved antimicrobial development.
MICU1 Alleviates Diabetic Cardiomyopathy Through Mitochondrial Ca2+–Dependent Antioxidant Response
Authors: Ji Lele , Liu Fengzhou , Jing Zhe , Huang Qichao , Zhao Ya , Cao Haiyan , Li Jun , Yin Chun , Xing Jinliang , Li Fei
Published: March 2017

Diabetic cardiomyopathy is a major cause of mortality in patients with diabetes, but specific strategies for preventing or treating diabetic cardiomyopathy have not been clarified yet. MICU1 is a key regulator of mitochondrial Ca2+ uptake, which plays important roles in regulating mitochondrial oxidative phosphorylation and redox balance. To date, however, the significance of MICU1 in diabetic hearts has not been investigated. Here, we demonstrate that MICU1 was downregulated in db/db mouse hearts, which contributes to myocardial apoptosis in diabetes. Importantly, the reconstitution of MICU1 in diabetic hearts significantly inhibited the development of diabetic cardiomyopathy, as evidenced by enhanced cardiac function and reduced cardiac hypertrophy and myocardial fibrosis in db/db mice. Moreover, our in vitro data show that the reconstitution of MICU1 inhibited the apoptosis of cardiomyocytes, induced by high glucose and high fat, through increasing mitochondrial Ca2+ uptake and subsequently activating the antioxidant system. Finally, our results indicate that hyperglycemia and hyperlipidemia induced the downregulation of MICU1 by inhibiting Sp1 expression in diabetic cardiomyocytes. Collectively, our findings provide the first direct evidence that upregulated MICU1 preserves cardiac function in diabetic db/db mice, suggesting that increasing the expression or activity of MICU1 may be a pharmacological approach to ameliorate cardiomyopathy in diabetes.
PENGEMBANGAN QUICK CHANGE TOOLPOST PADA MESIN BUBUT CIAMIX UNTUK MENDUKUNG PEMBELAJARAN PRAKTIK PEMESINAN BUBUT
Authors: Arifin Achmad
Published: March 2017

Tujuan penelitian ini untuk: (1) mengembangkan produk Quick Change Toolpost Sets and Holders yang dapat digunakan pada mesin bubut Ciamix SP 6230 T, (2) mendapatkan hasil produk Quick Change Toolpost Sets and Holders yang layak digunakan dalam pembelajaran praktik pembubutan. Penelitian ini menggunakan pendekatan Research and Development dengan tahapan pengembangan yaitu: (1) studi pendahuluan, (2) produksi, (3) evaluasi produk, dan (4) diseminasi. Validasi produk dengan uji kelayakan oleh ahli pembelajaran dan praktisi pemesinan bubut, sedangkan uji coba produk oleh mahasiswa dengan metode angket. Teknik analisis data yang digunakan adalah teknik analisis statistik deskriptif. Hasil penelitian dan pengembangan ini adalah produk berupa Quick Change Toolpost Sets and Holders yang memiliki spesifikasi dan keunggulan yaitu: dapat digunakan pada mesin bubut Ciamix seri SP 6230 T, memiliki 2 holders pahat yang terpasang pada toolpost, dan pengaturan tinggi holder pahat cukup dilakukan hanya dengan memutar baut pengatur sehingga ujung mata sayat pahat akan dengan mudah diatur setinggi senter mesin bubut. Produk ini memudahkan operator mesin bubut dalam menyetel tinggi pahat, tidak perlu menggunakan plat pengganjal dan lebih hemat waktu kerja dalam mengatur tinggi pahat. Produk ini memiliki kelayakan dengan skor sebesar 3,64 yang berarti “BAIK”, sehingga dapat digunakan dengan baik secara fungsional maupun operasional, mampu menahan getaran akibat putaran mesin pada proses pembubutan, dan hasil pembubutan dengan beberapa variasi putaran maupun tebal pemakanan menunjukkan hasil yang baik.
O pensamento de Jane Jacobs na perspectiva da cidade includente
Authors: Martins Maria Lucia Refinetti , De Oliveira Paula Custódio , Patitucci Giulia Pereira
Published: March 2017

Partindo da convicção de que o planejamento e o projeto urbano em sociedades com grandes desigualdades sociais, como a brasileira, só se justificam se a busca pela funcionalidade estiver associada à busca pelo desenvolvimento de elementos que fomentem cidadania e cidade em tecidos periféricos de grande carência urbana, destaca-se aqui a infraestruturação desses tecidos precários através da implantação de equipamentos públicos. Para tanto se incorporam no debate uma leitura ampliada das formulações de Jane Jacobs que permite visualizar a potencialidade de os Centros Educacionais Unificados (CEUs), equipamentos públicos de uso múltiplo, em São Paulo, desempenharem um papel de animação urbana e inclusão social. A reflexão parte da escala da cidade, buscando alcançar a escala da pessoa humana, do morador.Palavras-chaves: Qualificação Urbana. Espaços Públicos. CEU (Centro Educacional Unificado).
Reseña de Franz Rosenzweig. 2015. Escritos sobre la guerra. Ed. y trad. de Roberto Navarrete. Salamanca: Ediciones Sígueme. 237 pp.
Authors: Belmonte García Olga
Published: March 2017

Reseña de Franz Rosenzweig. 2015. Escritos sobre la guerra. Ed. y trad. de Roberto Navarrete. Salamanca: Ediciones Sígueme. 237 pp.
Sobre el resentimiento y el perdón: una réplica a Ricardo Gibu
Authors: Ramírez Patiño Marisol
Published: March 2017

Recibido: 3/12/2015 • Aceptado: 27/01/2016

En las siguientes líneas, se efectuarán algunas consideraciones sobre la posición de Scheler en torno al resentimiento y el perdón, a manera de respuesta a un artículo escrito por Ricardo Gibu: “Sobre el resentimiento y el perdón”. Principalmente, se demostrará que, contrariamente a lo que sostiene el ponente, Scheler aproxima el fenómeno psíquico del resentimiento a su venero religioso y el pensamiento filosófico al teológico, presentando así una solución autosuficiente que no requiere el complemento de otro interlocutor, como Gibu lo plantea dialogando con Romano Guardini, pese al valor que tiene la comparación. Para ello, este trabajo se propone la revisión de otras obras capitales del fenomenólogo para sustentar la tesis que concibe el resentimiento como una protesta frente al amor de Dios, cuya raíz reside en el trastorno del orden eterno de la consciencia humana, así como su efectiva aprehensión y su realización en la vida.
Synthesis and Selfassambling of Amphiphilic Oligoesters Based on Pyromellitic Acid
Authors:   North Dakota State University, Dept. 2760, P.O. Box 6050, Fargo, ND 58108-6050, USA, Tarnavchyk Ihor , Voronov Andriy ,   North Dakota State University, Dept. 2760, P.O. Box 6050, Fargo, ND 58108-6050, USA, Donchak Volodymyr ,   Lviv Polytechnic National University; 12, S. Bandery str., 79013 Lviv, Ukraine, Budishevska Olga ,   Lviv Polytechnic National University; 12, S. Bandery str., 79013 Lviv, Ukraine, Kudina Olena ,   Lviv Polytechnic National University; 12, S. Bandery str., 79013 Lviv, Ukraine, Khomenko Olena ,   Lviv Polytechnic National University; 12, S. Bandery str., 79013 Lviv, Ukraine, Harhay Khrystyna ,   Lviv Polytechnic National University; 12, S. Bandery str., 79013 Lviv, Ukraine, Samaryk Volodymyr ,   Lviv Polytechnic National University; 12, S. Bandery str., 79013 Lviv, Ukraine, Voronov Stanislav ,   Lviv Polytechnic National University; 12, S. Bandery str., 79013 Lviv, Ukraine
Published: March 2017

The method for synthesis of a new class of amphiphilic oligoesters of pyromellitic acid is developed. As hydrophilic fragments polyethylene glycols or polyethylene glycol mono methyl ethers were used, as lipophilic ones – primary fatty alcohols or cholesterol. The structure of the synthesized oligoesters was confirmed by IR- and PMR-spectroscopy. The oligoesters could solubilize water-insoluble substances, for example such effective antitumor lipophilic drug as curcumin. The high solubilization capacity of the OEPA assemblies and their biodegradability, as well as other properties (size distribution, ζ-potential) make the oligoesters considered as promising materials for the design of drug delivery systems.
Parameter Tuning for Scalable Multi-Resource Server Consolidation in Cloud Systems
Authors: Canali Claudia , Lancellotti Riccardo
Published: March 2017

Infrastructure as a Service cloud providers are increasingly relying on scalable and efficient Virtual Machines (VMs) placement as the main solution for reducing unnecessarycosts and wastes of physical resources. However, thecontinuous growth of the size of cloud data centers posesscalability challenges to find optimal placement solutions. The use of heuristics and simplified server consolidation models that partially discard information about the VMs behavior represents the typical approach to guarantee scalability, but at the expense of suboptimal placement solutions. A recently proposed alternative approach, namely Class-Based Placement (CBP), divides VMs in classes with similar behavior in terms of resource usage, and addresses scalability by considering a small-scale server consolidation problem that is replicated as a building block for the whole data center. However, the server consolidation model exploited by the CBP technique suffers from two main limitations. First, it considers only one VM resource (CPU) for the consolidation problem. Second, it does not analyze the impact of the number (and size) of building blocks to consider. Many small building blocks may reduce the overall VMs placement solution quality due to fragmentation of the physical server resources over blocks. On the other hand, few large building blocks may become computationally expensive to handle and may be unsolvable due to the problem complexity. This paper extends the CBP server consolidation model to take into account multiple resources. Furthermore, we analyze the impact of block size on the performance of the proposed consolidation model, and we present and compare multiple strategies to estimate the best number of blocks. Our proposal is validated through experimental results based on a real cloud computing data center.
A pervasive computing system for the remote management of hospital waste
Authors: Katsiri Eleftheria , Moschou Konstantinos
Published: March 2017

Waste generated by health care activities includes a broad range of materials, from used needles and syringes to soiled dressings, body parts, diagnostic samples, medical devices and radioactive materials. As a result of poor practice and large volumes, only a very small percentage ofmedical waste is actually disposed of properly in final reception units while the rest is unaccounted for potentially exposing the community at large to infection, toxic effects and injuries, and risking polluting the environment.This paper discusses, Greenactions, a novel Pervasive Computing system for the remote end-to-end management of hazardous medical waste. Greenactions provides real-time trace-ability for 100% of medical waste, by continually monitoring the full life cycle of each waste container, from their delivery to the hospitals, through to their collection and disposal, and providing remedial action in real-time, whenever an incident occurs. This is achieved by employing both fixed and handheld RFID and sensortechnology, supported by a state-machine model that knows at any time the current and next state of each waste container. Deployed together with a small fleet of appropriately modified vehicles for waste collection, Greenactions provides an integrated solution can be applied in any waste collection and tracking scenario, without requiring any costly, proprietary infrastructure thus alleviating the burden of medical waste management fromhealth-care units. A prototype system was developed using open source technology that is ready to be deployed to pilot healthcare units in Athens, while a set of KPIs were implemented for evaluating the efficiency of the system.
Security Threats in Software Defined Mobile Clouds (SDMC)
Authors: Mythili R. , Venkataraman N. Revathi
Published: March 2017

Future Internet comprises of emerging ICT mega-trends (e.g., mobile, social, cloud, and big data) commands new challenges like ubiquitous accessibility, high bandwidth, and dynamic management to meet the data tsunami requirements. In the recent years, the rapid growth of smartphone business is highly evidenced due to its versatile usage irrespective of location, personality or context. Despite of increased smartphone usage, exploiting its full potential becomes very difficult owing to its typical issues such as resource scarcity, mobility and more prominently the security. Software Defined Networking (SDN), an emerging wireless network paradigm can make use of rich mobile cloud functionalities such as traffic management, load balancing, routing, and firewall configuration over physical abstraction of control planes from data planes. Hence SDN leads to a clear roadmap to Software Security control in Mobile Clouds (SDMC). Further it can be extended to a level of Security prevention. To address in this direction, this paper surveys the relevant backgrounds of the existing state-of-art works to come up with all possible SDMC threats and its countermeasures.
Ella: sus muchas caras. Traducir poesía autóctona desde teorías feministas y poscoloniales
Authors: Chávez Lidoly
Published: March 2017

La traducción al español de la obra de Louise Halfe es apenas un punto de partida en la reflexión sobre la insuficiente circulación de literaturas autóctonas femeninas en las Américas. Con el traspaso lingüístico de un texto como Blue Marrow, se suscita una triple revalorización cultural de creadores "periféricos" a los que aún el canon literario hegemónico no sitúa en su justo lugar: el sujeto indígena, la mujer, la traductora. Una traducción basada en teorías poscoloniales y feministas extiende la vocación subversiva de Halfe para enriquecer las culturas hispanoamericanas con el aporte de nuevos referentes y estrategias disruptivas de la lengua dominante, así como de una profunda conciencia sobre la mujer en los procesos coloniales y en la transmisión de la memoria.
Relatos de adopciones monoparentales: tensiones y potencialidades
Authors: Pena Mariela
Published: March 2017

Aquí exploramos los modos de construir el parentesco por parte de las mujeres que adoptan en Buenos Aires como familias monoparentales. Estas reflexiones se desprenden de una investigación de mayor alcance, en la cual hemos observado frecuentemente en las parejas heterosexuales la presencia de sentidos que refuerzan la pertenencia del adoptado al nuevo grupo, sin desafiar el modelo tradicional de sustitución de familias. Sin embargo, durante el trabajo de entrevistas con mujeres que deciden adoptar independientemente de la conformación de pareja, hallamos que se les suelen otorgar niños de mayor edad, con vínculos afectivos más presentes. Planteamos que dadas estas circunstancias —a veces no deseadas—, las adopciones monoparentales, si bien no representan un modelo alternativo, pueden auspiciar construcciones más flexibles e inclusivas.
TE e LHE como clíticos acusativos de 2ª pessoa em cartas pessoais cearenses
Authors: Araújo Francisco Jardes Nobre de , Carvalho Hebe Macedo de
Published: March 2017

Este estudo objetiva analisar a alternância dos pronomes te e lhe como oblíquos de 2a pessoa, na função de acusativo, em cartas pessoais cearenses, escritas durante o século XX, à luz dos pressupostos teórico- metodológicos da Sociolinguística Variacionista (LABOV, 1972; 1994). A amostra a ser analisada é composta por 186 cartas pessoais escritas por cearenses. Busca-se investigar a atuação dos grupos de fatores tipo semântico do verbo; estrutura do verbo; posição do clítico em relação ao verbo e a variável extralinguística década em que as cartas foram escritas. Os dados analisados foram submetidos ao programa computacional GoldVarb X (SANKOFF; TAGLIAMONTE; SMITH, 2005) e indicam que a) como acusativo de 2a pessoa, a forma te (60%) é mais recorrente do que a forma lhe (40%); b) verbos do tipo dicendi favorecem o uso de lhe (68%), enquanto verbos de sentimento o desfavorecem (12%); c) nas ocorrências de ênclise, lhe foi mais frequente (60%) do que te (40%); e d) a variação de te~lhe acusativo nos anos 1940-1959 foi de 44% de te e 56% de lhe, havendo um uso bem maior de te (70%) do que de lhe (30%) nos anos de 1980-1999. 
Variação das vogais pretônicas em cartas de um casal não-ilustre de 1930
Authors: Rocha Fabiane De Mello Vianna da
Published: March 2017

Este artigo analisa o comportamento das vogais médias pretônicas em missivas de um casal não ilustre do início do século XX. Trata-se de um estudo diacrônico, que parte dos preceitos da Sociolinguística Histórica e investiga a relação entre a variação existente na representação grafemática dessas vogais, na década de 1930, e o grau de contato dos autores com modelos de escrita. Mais especificamente, em um primeiro momento, as ocorrências são selecionadas a partir dos modelos de escrita atuais. A fim de verificar se os dados de fato refletem desvios grafemáticos ou se correspondem ao padrão que vigorava, utilizam-se, ainda, registros escritos de dois jornais de grande circulação na mesma época.  Assim, constata-se ora a correspondência entre os periódicos e as missivas, ora o seu distanciamento, já que alguns casos refletem, ainda que em diferentes níveis, marcas de fala e/ou a insegurança sobre os padrões ortográficos então vigentes.
Representaciones sociales de los instructores frente a su quehacer pedagógico
Authors: Martínez Ramírez Carlos David , Malagón Ruiz Rusby Yalile , Rojas Navarrete Fabiam Eduardo , Martínez Triana Cesar Rodrigo , Meza Aparicio Diego Antonio
Published: March 2017

El presente artículo se refiere a la investigación titulada Representaciones sociales de los instructores frente a su quehacer pedagógico y las disertaciones tratadas en el grupo de investigación “Formación pedagógica de instructores SENA”, sobre este proyecto. Se realiza un taller de vocablos ; una breve descripción de lo que se entiende por pedagogía y sus imprecisiones conceptuales; una reflexión sobre el significado de las representaciones sociales; se finaliza con algunas conclusiones que expresan las preocupaciones, inquietudes e incertidumbres implícitas en el estudio de las representaciones sociales de uno de los actores protagónicos de la formación al interior de nuestra institución.
La investigación como alternativa de aprendizaje: La práctica pedagógica de Nelson Gómez Sánchez, Germán Darío Gómez Amaya, Adrián Bernardo García Guarín
Authors: Rincón Trujillo Helka Liliana , Malagón Ruiz Rusby Yalile
Published: March 2017

El presente texto expone la experiencia de tres instructores del SENA que, en el Centro Agroturístico, decidieron formar un equipo para la producción ovino-caprina; trabajo que incluyó la idea de conformar semilleros de investigación para poder sistematizar, construir y transferir conocimientos con los aprendices de sus programas de formación. El equipo fue ganador del 1er. Premio a la Excelencia del Instructor SENA, categoría de adaptación; una experiencia nacional que, sin duda, ayudó a construir un proceso de formación planeado pedagógicamente y digno de ser tenido en cuenta.
PENGGUNAAN MODEL PEMBELAJARAN PROBLEM BASED INSTRUCTION (PBI) UNTUK MENINGKATKAN KEAKTIFAN DAN HASIL BELAJAR MATEMATIKA SISWA KELAS 9B SEMESTER GASAL TAHUN PELAJARAN 2014/2015 SMP NEGERI 2 TUNTANG - SEMARANG
Authors: Muah Tri
Published: March 2017

Penelitian tindakan kelas ini bertujuan untuk meningkatkan keaktifan dan hasil belajar matematika siswa pada materi peluang dengan penerapan model pembelajaran PBI bagi kelas 9B Semester Gasal SMP Negeri 2 Tuntang Kabupaten Semarang. Hasil penelitian kondisi awal menggunakan wawancara, observasi dan analisis butir soal, siswa kelas 9B ini memiliki keaktifan belajar yang kurang, kemudian berdampak pada hasil belajar siswa rendah juga. Berdasarkan kondisi awal tersebut, perlu dilakukan penelitian tindakan kelas untuk meningkatkan keaktifan belajar dan hasil belajar matematika siswa. Penelitian ini merupakan Penelitian Tindakan Kelas (PTK) dengan mengetahui model prosedur penelitian yang dikembangkan oleh Kemmis dan Mc Taggart berupa model penelitian yang spiral yang pada umumnya direncanakan terdiri dari dua siklus. Setiap siklus terdiri dari empat tahap yaitu: 1) tahap pelaksanaan tindakan (planning), 2) tahap pelaksanaan tindakan (acting), 3) tahap pengamatan (observing), dan 4) tahap refleksi (reflecting). Subjek penelitian ini adalah siswa kelas 9B SMP Negeri 2 Tuntang yang terdiri dari 32 orang siswa. Data diperoleh melalui tes kognitif dan lembar observasi siswa. Dari hasil penelitian ini dapat disimpulkan bahwa model pembelajaran PBI dapat meningkatkan keaktifan belajar dan hasil belajar matematika siswa. Hal ini ditunjukan dengan hasil wawancara dan observasi yang dilakukan sebelum penelitian ini dilakukan dimana keaktifan belajar siswa secara individu 14% dan keaktifan belajar siswa secara kelompok 50% dan hasil belajar matematika siswa pada materi sebelumnya juga menunjukkan hasil belajar yang rendah dimana dari 32 siswa 6.25% siswa mendapatkan nilai tuntas dengan rata-rata 34,3. Setelah dilakukan tindakan pada siklus I, terjadi peningkatan terhadap keaktifan belajar dan hasil belajar matematika. Lembar observasi pada siklus I menunjukkan keaktifan siswa secara individu meningkat menjadi 27.4% dan keaktifan belajar siswa secara kelompok 65% dan terus meningkat juga pada siklus II yaitu keaktifan belajar siswa secara individu menjadi 73.13% dan keaktifan belajar siswa secara kelompok 85%. Hasil belajar siswa juga mengalami peningkatan di setiap siklusnya. Pada siklus I rata-rata hasil belajar siswa sebesar 64,88 dan pada siklus II rata - rata nya kembali meningkat menjadi 81.39.
 
MODEL PELATIHAN GURU ILMU PENGETAHUAN SOSIAL DI SMP MUHAMMADIYAH KARTASURA
Authors: Subadi Tjipto , Dahroni Dahroni
Published: March 2017

The study aimed to review and describe: 1) Coaching model of social sciences teacher in SMP Muhammadiyah Kartasura. 2) Test the validation of coaching model on social sciences teacher. This study used a qualitative approach of phenomenology. This study was conducted in SMP Muhammadiyah Kartasura, Sukoharjo district. The research design was classroom action research. The subject in this research were students, teachers, the principal. Data collection technique used observation, testing and interview. The interview process using theory of first and second order understanding. Data were analyzed using an interactive model included data reduction, data display, and conclusion. This study concluded that 1) Coaching Model of social sciences teacher in SMP Muhammadiyah Kartasura used modification lesson study approach. 2) Validation of the coaching model using two kinds of validation namely theory of validation and practice of validation.