bluuebunny/crossref_metadata_2025 huggingface dataset:
Microorganisms Producing Biosurfactant Selection and Characterization of New Discovered Bioemulsifier that will be Used to Create Ecological Heating Production Technology
Authors: Žėkaitė G. , Jaška V. , Poška K. , Andrulytė M. , Grigiškis S.
Published: August 2015

The chemical synthesis of surface active compounds is economically inefficient. It requires much energy expense, raw materials and harmful reagents. Biological biosynthesis of surface active substances happens in milder conditions without the use of dangerous chemical reagents. The main goal of this work was to select a microorganism strain capable of producing a bioemulsifier with an ability to create a stable water / fuel-oil emulsion that could be used to design a new ecological heating technology. To this end, 3 microorganism strains displaying a high emulsification activity were used. The new discovered surface active substance (SAS) was investigated with different methods (hydrocarbon overlay agar method, emulsification activity determination, microscopic observation). The production of bioemulsifier (BE) was studied by using soluble and insoluble carbon sources. It was found that Arthrobacter sp. Pr82 is the best bioemulsifier producer. Oleic acid was ascertained as the best carbon source for the production of discovered BE.
Autonomous Power Station Based on Rotary-Vane Engine with an External Supply of Heat
Authors: Andreev Mikhail , Zhuravlev Yuriy , Lukyanov Yuriy , Perminov Leonid
Published: August 2015

Rotary-vane engine (RVE) with an external supply of heat is an aggregate consisting of two modules with a common output shaft, the heating device (heater) of working medium and the cooling device (cooler) of working medium, which connected with inlet and outlet ports of modules by system of pipeworks. Each module has two rotors with two vanes on each. Between the corresponding plane surfaces of the four vanes four working volumes are formed wherein thermodynamic cycle steps: ingress, compressing, heat intake, expansion stroke, discharge, outward heat transmission are going simultaneously. The angular displacement of modules relative to one another occurs pumping the working medium through the heater and cooler, which allows the conversion of thermal energy into mechanical work. Design features of the RVE with an external supply of heat allows create a closed gas-vapor cycle. The main specified advantages of the RVE with an external supply of heat are: fewer noxious emissions, multifuel capability, high motor potential (service life). Different problems of creation external combustion engines such as structural complexity of construction units, absence of adequate mathematical model of designed RVE with an external supply of heat are also pointed. The construction of the RVE with an external supply of heat developed in Pskov Polytechnic Institute (now the Pskov State University), the operation concept of the engine, the physical processes in the chamber modules RVE with an external supply of heat during each step and the mathematical model describing the physical processes proceeding in chamber RVE with an external supply of heat modules are considered.
Force-in-Chain Study of Chain-Electric Hoist with Periodical Variable Angular Rotational Velocity of Chain-Wheel
Authors: Balashev Ivan , Macuta Silviu
Published: August 2015

Lifting mechanism of chain electric hoist with periodical variable angular velocity of chain-wheel has been studied in this paper. The non-uniform movement of chain is considerably decreased and from where the dynamic load is also decreased. The experimental studies of the lifting mechanism have been carried out at different operation modes. The results from these studies have been graphically presented and conclusions have been done.
Simulation Technique of Synchronous Reluctance Bearingless Machine
Authors: Domracheva Yulia , Loginov Sergey
Published: August 2015

Magnetically levitated rotor electric machines can be used under such conditions wherein application of conventional bearings is impossible because of presence of lubrication. Active magnetic bearings application requires rotor length increase and stalling speed is decreased. Bearingless electric machines are the next step up of the magnetically levitated rotor machines. A bearingless electric machine module generates electromagnetic torque and radial forces. This feature makes possible to decrease the rotor length on retention of capacity of torque and forces. It is necessary to verify a control system operation algorithm via simulation model owing to complexity of machine electromagnetic interaction. It is practical to use a variable attribute set model for this purpose. The following article considers one of these models for researching the system via MATLAB Simulink. Basic relations for programmatic model creation are presented. Comparative assessment of various machine model types is made.
Simulation of Traction Electric Drive with Vector Systems of Direct Torque Control
Authors: Fedotov Ilya , Tikhonov Vyacheslav
Published: August 2015

The article deals with investigation of electromechanical and energetic characteristics of traction electric drive with vector systems of direct torque control. As a controlled object the traction asynchronous motor ДТА-1У1, which is used to drive the trolley-bus is considered. At the present time the usage of traction asynchronous electric drives for town transport is relevant. Due to development of power electronic devices and microprocessor-based control systems it became possible to replace DC electric drives with electric drives with asynchronous motors. The article contains brief description of two different types of control systems: field-oriented control (FOC) and direct torque control (DTC). Principles of work for both systems are considered and the main advantages and disadvantages associated with the use of these systems are pointed out. The models of both systems for traction asynchronous electric drive, built in modeling environment MATLAB/Simulink, are given in this article for further comparative analysis. As the main quality factor of control total harmonic distortion (THD) is used.
Analysis of Dynamic Parameters of Observation Towers in Latvia
Authors: Gaile Liga
Published: August 2015

The purpose of this research is to experimentally identify the performance of most of the light-weight observation towers open for public in Latvia. It analyzes the structure of towers, technical condition, dynamic parameters and dynamic response to human movement along the tower height. During the experiment there were measured and recorded the vibration accelerations of 18 observation towers’ upper platform. Further dynamic parameters were extracted using the spectral analysis. There was performed the sensitivity analysis to establish parameters that most influences the dynamic response amplitudes due to human movement. All experimentally obtained fundamental frequencies of the inspected towers are in the typical range of human walking frequencies. It is found that the main parameter that denotes the response level (acceleration amplitude) of the tower due to human movement is a tower self-weight.
А System for Input of 3D Objects into Computing Environment
Authors: Ilarionov Raycho , Krastev Krasimir
Published: August 2015

This paper proposes an approach for design and implementation of automated 3D scanner used for input of mechanical 3D objects into computing environment. The presented model of 3D scanner is based on kinematic diagram of positioning system with 5 degree of freedom – 3 linear and 2 rotational, each driven by servo motors. For distance measuring is used laser scanning head with rotational triangulation. The paper describes also algorithms for functional control of the scanning process, obtaining of point cloud, object reconstruction and export to standard CAD format. Keywords
The Simulation Model of a Sliding Contact
Authors: Ilyin Alexander , Plokhov Igor , Isakov Andrey
Published: August 2015

This paper deals with the brush slip ring contact modeling. Approaches the sliding contact problem with the synergy theory. The contact layer is considered using mechanical, electrical and thermal properties. The simulation model includes algorithms of: - generation of microscale contact surface, - approachment of two surfaces, - fritting and breakdown effects of oxide layer, - extracting clusters of conducting area, - calculating constriction resistance using fractal dimensionality, - generation of heat caused by electrical current and mechanical friction, - calculation of integral characteristics. The program implementing the model may be used to optimize the contact materials before time-consuming and expensive tests. Finally discusses the implemented model and its results, problems of verification and validation.
Digital Control of Variable Frequency Interleaved DC-DC Converter
Authors: Kroics Kaspars
Published: August 2015

This paper represents a design and implementation of a digital control of variable frequency interleaved DC-DC converter using a digital signal processor (DSP). The digital PWM generation, current and voltage sensing, user interface and the new period and pulse width value calculation with DSP STM32F407VGT6 are considered. Typically, the multiphase interleaved DC - DC converters require a current control loop in each phase to avoid imbalanced current between phases. This increases system costs and control complexity. In this paper the converter which operates in discontinuous conduction mode is designed in order to reduce costs and remove the current control loop in each phase. High current ripples associated with this mode operation are then alleviated by interleaving. Pulse width modulation (PWM) is one of the most conventional modulation techniques for switching DC - DC converters. It compares the error signal with the sawtooth wave to generate the control pulse. This paper shows how six PWM signals phase-shifted by 60 degrees can be generated from calculated values. To ensure that the measured values do not contain disturbances and in order to improve the system stability the digital signal is filtered. The analog to digital converter's (ADC) sampling time must not coincide with the power transistor's switching time, therefore the sampling time must be calculated correctly as well. Digital control of the DC-DC converter makes it easy and quickly to configure. It is possible for this device to communicate with other devices in a simple way, to realize data input by using buttons and keyboard, and to display information on LED, LCD displays, etc.
Study of the Ion Radiation Influence on the Parameters of Unijunction Transistors
Authors: Nenov Nikolaj , Tomchev Petar , Ivanova Rayna
Published: August 2015

The object of this report is study the influence of gamma quanta on some parameters of the unijunction transistors to synthesize radioisotope equipment.
Flowline with Resistive Electric Heating System
Authors: Pavlov Alexander , Plohov Igor
Published: August 2015

The article deals with electric heating systems applied in flowlines for providing their continued operation in wintertime. The problem of obtaining a given distribution of heat output along the length of the pipeline with electric heating system has been solved. It allows to maintain the same temperature sections being in different environments. As the object of investigation a polymer tube with an integrated electrical heating is chosen.
Functional Safety o f Power Plant ’ s Technological Protections
Authors: Trashchenkov Sergey
Published: August 2015

Functional safety is an important component of safety in general, has received increasing attention in the petroleum and chemical industry, railway and other industries which used a complicated process, in case of failure can cause major damage and loss of life. Electric engineering is also among these industries. But quantitative analysis shows that the equipment of power plants does not satisfy stringent requirements of functional safety.
Path Planning Usage for Autonomous Agents
Authors: Valbahs Edvards , Grabusts Peter
Published: August 2015

In order to achieve the wide range of the robotic application it is necessary to provide iterative motions among points of the goals. For instance, in the industry mobile robots can replace any components between a storehouse and an assembly department. Ammunition replacement is widely used in military services. Working place is possible in ports, airports, waste site and etc. Mobile agents can be used for monitoring if it is necessary to observe control points in the secret place. The paper deals with path planning programme for mobile robots. The aim of the research paper is to analyse motion-planning algorithms that contain the design of modelling programme. The programme is needed as environment modelling to obtain the simulation data. The simulation data give the possibility to conduct the wide analyses for selected algorithm. Analysis means the simulation data interpretation and comparison with other data obtained using the motion-planning. The results of the careful analysis were considered for optimal path planning algorithms. The experimental evidence was proposed to demonstrate the effectiveness of the algorithm for steady covered space. The results described in this work can be extended in a number of directions, and applied to other algorithms.
Environmental Niche Modelling with Desktop GARP for Wild Origanum vulgare L . (Lamiaceae) in Armenia
Authors: Abrahamyan Armine , Barsevskis Arvids
Published: August 2015

Predicting species’ distributions has became one of the significant components of conservation biology in recent years. During the study, GARP (genetic algorithm) has been identified the key modelling technique for determining Origanum vulgare L. (Oregano, Lamiaceae) environmental niche in the Republic of Armenia. For over three consecutive years, from 2010-2013 it has been created relevant environmental layers through ESRI ArcGIS programs to be used with the plant actual distribution (occurrence records) as input data of GARP. In the result of the study, it has been produced the fundamental and realized niche and predictive habitat distribution of O. vulgare L. with Bitmap under the global climate change. Produced Bitmap illustrates that Oregano distributions would decrease mostly in the central regions due to environmental deterioration and climate change. This research could provide significant data for future conservation planning of wild Oregano in the Republic of Armenia.
Modernization of Public Administration and e-Government in Bulgaria
Authors: Gankova-Ivanova Zwetelina
Published: August 2015

The present paper discusses current issues related to administration and government that affect e-Governance and e-Government. It considers the strategic document addressing the modernization of the Bulgarian state administration and the improvement of the judicial system functioning, as well as the implementation of e-Government in Bulgaria – the Operational Programme “Administrative Capacity”. It is part of the National Strategic Reference Framework 2007 – 2013 and contributes to achieving the following strategic objectives: 1. Enhancing economic competitiveness in terms of high and stable economic growth; 2. Stimulation of human potential by ensuring intensive employment, higher incomes and social integration. The Operational Programme has a horizontal nature and its purpose is to improve the operation of public administration directed to implementation of effective policies and quality services to citizens and businesses and creating conditions for sustained economic growth and employment, increasing professionalism and transparency, improving the functioning of the judiciary. On this basis, the priorities of the Operational Programme for achieving the strategic goals of modern administration – quality services and e-Governance – are considered.
Enhancing the General and Special Skills of Students
Authors: Hinkova Nikolinka , Nenov Nikolay
Published: August 2015

The paper discusses some specific features related to the practical training of students of the Technical University of Gabrovo (Bulgaria) in some specific companies.
Lichens as Indicators of the Urban Environment Quality
Authors: Istomina N. B. , Likhacheva O. V.
Published: August 2015

The ranging of lichens among classes of poleotolerance were made. The most widely spread species from each class are mentioned. The estimation of the ecological state of air environment of the city of Pskov with lichens was held.
Application of the Multicomponent Method of Assessment o f Student ’ s Progress in Physics
Authors: Lazov Lybomir , Angelov Nikolay
Published: August 2015

The multicomponent method of assessing the progress in physics of students from the Technical University of Gabrovo is discussed in the paper. It is shown that tests papers as a modern form of examining students can successfully be combined with other traditional forms of examination. In that way the teacher can get important feedback on how students understand lectures and laboratory teaching material during the semester and to adjust their work so that they can in time adapt to the necessary level. Thus, students are actively involved in the learning process, which improves the results they show at the final exam. These conclusions are based on the results of the last decade, ever since the method was introduced.
Control of Heavy Metal Pollution in Degraded Rural Areas
Authors: Locis Ivars
Published: August 2015

The paper presents the issue of heavy metals in the different types of degraded territory in rural areas. For the test was chosen three different degraded territory: the former petrol station, the former farm mechanical workshop, the former farm cattle storage. All of three objects during operation were subjected to intensive polluting impact. They are included in the contaminated and potentially contaminated sites register. High concentrations of heavy metals in the soil of degraded territory is a factor that affects the planning for regeneration. Revitalization of contaminated sites and further use of them is possible only after the remediation works.
Modelling by Finite Element Analysis Method of Stress State Establishing for an Steel Alloy
Authors: Macuta Silviu , Istratescu Mirel
Published: August 2015

The paper presents some results about thetension state in samples subject to pure bending fatigue process. Numerical simulation based on finit elementmethod was used. The tension field induced by a verticaldeformation imposed at the sample ends was generatedon an original patented machine. The studies werecarried out on two steels currently used in pressurevessels industry. Experimental data are in good agreementwith the simulated ones.
The Role of Clusters in the Economic Development of the North-West Regions of Russia
Authors: Nikolaev Michael , Malyshev Denis
Published: August 2015

The purpose of this paper is to identify problems in innovation and show the role of clusters in the innovative development of the North-West regions of Russia. A characteristic feature of the present stage of economic development of the regions of the Russian Federation is the transition to an innovative socially oriented model of economic development based mainly on the generation, dissemination and use of knowledge. Analysis of policy documents on the federal, as well as macro-regional level regarding issues of strategy of innovative development has shown that the transition to an innovative model of development at the regional level is largely related to formation of clusters: High-tech clusters in urban areas; Clusters focused on the deep processing of raw materials and energy with the use of modern technologies in underdeveloped areas; Tourist and recreational clusters in areas with unique natural and climatic conditions; Transport and logistics clusters in areas with favorable geographical position. Great attention to the practical issues of creating clusters is also paid to the regional level. In the strategic development documents of the most of the subjects in the North-West of Russia specific clusters are identified, which could become locomotives of innovation development of the regional economy. The most common in the regions of North-West are the following clusters: forest, tourism, manufacturing, transport and logistics. Analysis of regional practices on creating clusters showed that they are mainly based on the existing specialization of regional economies. Insufficient attention is paid to identify and support of new innovative clusters, and formation of inter-regional clusters.
Factors of Economic Growth in the Regions of the North-West Federal District of Russia
Authors: Nikolayev М. А. , Makhotaeva Yu.М.
Published: August 2015

The purpose of this paper is to identify the factors determining the growth of the regional economy. The research of the influence of the main determinants of economic growth has been executed in the paper: labor force, investments into fixed capital, R & D expenditure on the index of regions’ economy growth. The analysis shows that all these factors made an essential impact on the rates of increase of economy of regions in 2000-2008. Estimating the prospects of the growth of economy of regions in strategic prospect (till 2020) it is necessary to notice that possibilities of the growth at the expense of extensive factors are almost set. In these conditions a steady growth of regional economy is possible only at the expense of an intensification of investment process and strengthening of its innovative component.
Analysis of SMEs in Bulgaria – Assessment of Their Innovation Activities
Authors: Petrova Desislava
Published: August 2015

The main thesis of the report is that the vast choice of planned innovation is given by combining traditional financial and economic assessment approaches innovation, namely through the net present value (NPV). The aim is to analyze the situation of SMEs in Bulgaria, to identify the problems facing their development and to formulate recommendations to address them.
Estimation of River Utroya Ecological State in Intensive Organic Pollution Area Using Plankton Communities ’ Characteristics (Pskov Region)
Authors: Sudnitsina Diana , Cherevichko Anna
Published: August 2015

The changes in characteristics of phytoplankton and zooplankton communities in the river Utroya stretch with the active organic pollution were discussed. The paper shows the effects of pollution on the structural indicators of the communities (species composition, abundance, and biomass). Saprobical analysis was held. Assessment of ecological state of the river stretch was made.
Poema
Authors: Martins Magda Frediani
Published: August 2015

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Permanência
Authors: Camargo Ronald Claver
Published: August 2015

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Três odes iguais a ódio
Authors: Reis Edgard Pereira dos
Published: August 2015

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Innocens mánibus et mundus corde
Authors: Fonseca Olinto Carlos Da
Published: August 2015

Não creio no que diz Terêncio: que aqueles que os deuses amam morrem no vigor dos anos. 'Quem di díligunt adulescens móritur'. Por que 'ius' ou por que 'fas' haveríamos de tirar a vida aos que amamos? E não são os deuses criados à nossa semelhança?
Morte e amor: a construção do humano na lírica grega arcaica
Authors: Santos Magda Guadalupe dos , Brandão Jacyntho Lins
Published: August 2015

Os séculos VIII e VII a. C. assistem a uma mudança profunda na cultura grega — vale dizer, na cultura ocidental — a qual vai conformar o que de mais peculiar criou o gênio helênico nos campos das artes, do saber e da política. Em princípio, novas circunstâncias históricas condicionam mudanças econômicas que acarretam modificações sociais capazes de influir poderosamente na própria concepção que o homem faz de si mesmo, do outro e do mundo.
Rubens Costa Romanelli, sábio e virtuoso
Authors: Jorge Fidélis Chamone
Published: August 2015

Rubens Costa Romanelli foi o quinto dentre seis filhos do primeiro casamento de Osório Viana Romanelli com Lívia Costa Romanelli. De família medianamente numerosa, teve cinco irmãos: Laura, Iracy, Jandira, Oswaldo e Djalma. Seu pai casa-se pela segunda vez com Dona Elisa e dá-lhe mais quatro irmãos: José, Osório, Marta e Beatriz.
Resenha: SÊNECA. Édipo. Tradução do original latino por Johnny José Mafra. Belo Horizonte: UFMG/PROED, 1982. 113 p.
Authors: Brandão Jacyntho José Lins
Published: August 2015

A obra em questão vem ajudar a suprir grave lacuna no mer cado editorial brasileiro, em que raramente se encontram edições bilingües dos textos clássicos. Como nas melhores publicações es trangeiras, o Êdipo, de Sêneca, foi composto com detalhado cuida do gráfico, podendo facilmente o leitor percorrer o original se valendo da tradução ou mergulhar nesta conferindo-a, quando necessário, com o texto latino.
O câmon da lírica de Camões
Authors: Cardoso Wilton
Published: August 2015

O tema, provavelmente pouco claro para os não familiarizados com a Literatura Portuguesa em geral e os estudos camonianos em particular, não é original nem se exprime com o intuito de dizer com palavras difíceis coisas que são medianamente simples. Pertence à problemática dos estudos a respeito de Luís de Camões e sua obra e se notabilizou assim mesmo, em expressão que veio a ser consagrada: o cânon da Lírica de Camões.
Resenha: DONOSO, José. L'obscène oiseau de la nuit. Paris: Le Seuil, 1972.
Authors: Cade Claude
Published: August 2015

Resenha de L'obscène oiseau de la nuit por Claude Cade.
Resenha: BEAUVAIS, Rorbert. L'hexagonal tel qu'on le parle. Paris: Hachette, 1970.
Authors: Queiroz Maria José De
Published: August 2015

Resenha de L'hexagonal tel qu'on le parle por Maria José de Queiroz.
Outorga do titulo de Doutor Honoris Causa da UFMG a Carlos Drummond de Andrade
Authors: Cardoso Wilton , Coelho Marcello De Vasconcellos , Andrade Carlos Drummond de
Published: August 2015

Documentário sobre Outorga do titulo de Doutor Honoris Causa da UFMG a Carlos Drummond de Andrade por Wilton Cardoso, Marcello de Vasconcellos Coelho, Carlos Drummond de Andrade.
A lírica camoniana e as direções da poesia renascentista
Authors: Simões Hélio
Published: August 2015

A lírica camoniana, composta de acordo com o cânone estabelecido pelo Prof. Costa Pimpão para a sua edição monumental da Companhia Editora do Minho (Barcelos, 1944), de 327 poemas entre Redondilhas (118), Sonetos (166), Canções (10), Elegias (7), Odes (13), oitavas (4), Sextinas (1) e Éclogas (8), constitui senão a mais numerosa seguramente a mais importante e perfeita realização poética de quinhentos, em língua portuguesa. Haverá mesmo quem alargue a âmbito europeu essa importância e perfeição.
Soneto de Luís de Camões
Authors: Oliveira Lourenço De
Published: August 2015

Tradução de Soneto de Luís de Camões por Lourenço de Oliveira.
A publicidade portuguesa e a Revolução de 1974: comentários II
Authors: Campos Maria Helena Rabelo
Published: August 2015

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Publicidade e correção idiomática
Authors: Neves Norma Lúcia Horta
Published: August 2015

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Elementos românticos do Frei Luís de Sousa
Authors: Duarte Lélia Parreira
Published: August 2015

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Debate sobre a reforma do ensino de língua portuguesa na FALE/UFMG
Authors: Cunha Carlos Maciel da
Published: August 2015

Ao se iniciar a sessão, um aluno solicitou ao coordenador do debate que fosse feita uma breve exposição acerca do assunto que motivaria as discussões.
Debate sobre a reforma do ensino de língua portuguesa na FALE/UFMG
Authors: Pires Maria Sueli De Oliveira
Published: August 2015

Dando início à sessão, a coordenadora procedeu à leitura da síntese de um documento (*) redigido pelo prof. Carlos Maciel da Cunha, no qual se expõem as condições em que se deu a reforma do ensino de Língua Portuguesa na Fale/UFMG. Em seguida, foi franqueada a palavra.
Usos lingüísticos em crônicas de Carlos Drummond de Andrade
Authors: Vianna Marlene Machado Zica
Published: August 2015

Nosso pequeno trabalho tem como objetivo o estudo de usos de linguagem em crônicas de Carlos Drummond de Andrade. Consta de uma parte teórica em que tentamos apresentar a opinião de alguns autores sobre o problema da diversidade lingüística e de uma parte prática com estudo de textos que concretizam, que mostram a realidade dessa diversidade num autor da nossa literatura atual.
A distribuição dos advérbios de modo em "-mente"
Authors: Saraiva Maria Elizabeth Fonseca
Published: August 2015

Neste estudo, pretende-se descrever e analisar o comportamento sintático dos advérbios de modo simples do português, procurando investigar, em especial, suas possibilidades de ocorrência em sentenças com verbos finitos, na voz ativa.
Considerações sobre verbos que selecionam adverbiais
Authors: Saraiva Maria Elizabeth Fonseca
Published: August 2015

Neste texto, apresento algumas reflexões em torno de um assunto que há mais tempo vem despertando o meu interesse e que retomo aqui sob uma nova perspectiva — a questão dos verbos que selecionam adverbiais.
Língua materna, parte maldita da lingüística
Authors: Urbain Jean-Didier
Published: August 2015

Trata-se aqui de destruir a evidência de uma expressão e de seu uso. Trata-se, sobretudo, de, colocando-se em discussão seu emprego usual, examinar agora o domínio de uma imagem que subsiste no coração da lingüística.
Resenha: SOARES, Magda. Linguagem e escola: uma perspectiva social. São Paulo: Ática, 1986.
Authors: Castro Antônio Eduardo Andrade de
Published: August 2015

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Contra-cultura e marginália: uma releitura de metapoemas marginais
Authors: Tollendal Eduardo José
Published: August 2015

Leitura de poemas e metapoemas característicos da poesia marginal, com a intenção de aí captar e pôr em evidência o significado poético e a dimensão "marginal" desse discurso, no cenário da literatura brasileira dos anos 70.
Enredo para um tango argentino
Authors: Lima Sumaya Mattar Oliveira
Published: August 2015

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Memórias de olhares – contornos e imagens
Authors: Cabral Cleber Araújo
Published: August 2015

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Lendo a I Bucólica, de Virgílio
Authors: Deslandes Ludmila Karina Santos
Published: August 2015

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Reunião dos ventos
Authors: Oliveira Leandro
Published: August 2015

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Um sim bem dito
Authors: Masotti Rafael José
Published: August 2015

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Harakiri
Authors: Moraes Milene
Published: August 2015

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Uma história de amor
Authors: Batista Cristiano Rodrigues
Published: August 2015

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Garota alada
Authors: Araujo Fabrício Paiva
Published: August 2015

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“MM”
Authors: Andrade Miriam Piedade Mansur
Published: August 2015

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Paixão em tempos de sacola ecológica
Authors: Fullan Danielle
Published: August 2015

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Imóvel
Authors: Barcelos Carolina Pereira
Published: August 2015

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Evaluation of idiopathic sudden sensorineural hearing loss
Authors: Koca Çiğdem Fırat
Published: August 2015

Idiopathic sudden sensorineural hearing loss (ISSNHL) is a medical emergency. The early diagnosis and treatment should improve the complete recovery. The critical issue is diagnosis.
Holoprosencephaly with cyclopia: a rare case report
Authors: Rathod Setu , Samal Sunil Kumar , Begum Jasmina
Published: August 2015

Holoprosencephaly (HPE) with cyclopia is a rare congenital anomaly of the forebrain system where due to deformation and hypoplasia of the facial skeleton, one eye orbit is formed in the place where both eyes should be present. Many teratogenic factors are identified as the causative factors for this anomaly which include irregular cholesterol biosynthesis, viruses, alcohol intake and maternal diabetes. Many authors also suggest genetic aetiology of this illness. We report a case of 32 year old lady G2P1L1 with previous history of normal vaginal delivery who presented to us in second stage of labour. She delivered a female fetus with multiple defects and later diagnosed as a case of holoprosencephaly with cyclopia. The baby died soon after the birth. This case is presented because of its rarity. Early ultrasound diagnostics and proper management of this anomaly must be emphasized most strongly to prevent complication associated with this condition.
Cystic schwannoma of cervical sympathetic chain masquerading as type II second branchial cleft cyst
Authors: Bihani Ameya , Dabholkar Jyoti P.
Published: August 2015

Brachial cleft cyst is the most common differential diagnosis of benign lateral neck swelling but other cystic swellings like carotid body tumours and cystic schwannomas should be kept in mind. MRI of neck is of great assistance in determining the nature of the swelling as fine needle aspiration cytology will fail in diagnosing such swellings accurately. We present a case of 22 year old female who presented with a slow growing swelling which was diagnosed as brachial cyst on FNAC and CT but turned out to be cystic schwannoma of cervical sympathetic chain which highlights the importance of considering various differentials of lateral neck swelling and limitation of FNAC and importance of pre-operative MRI in such cases.
CONSUMO NA BAIXA RENDA: INFLUÊNCIA DOS VALORES DE COMPRA HEDÔNICO E UTILITÁRIO NO ENDIVIDAMENTO
Authors: Gerhard Felipe , Sousa Thiago Matheus de Paula , Souza Lucas Lopes Ferreira de , Carvalho Helder Araujo de , Pañaloza Verónica
Published: August 2015

O presente estudo teve por objetivo analisar os valores de consumo hedônico e utilitário, bem como a influência desses valores sobre a conduta financeira dos consumidores de baixa renda.

Para tal, foi realizada uma pesquisa descritiva, de natureza quantitativa, viabilizada por meio de um estudo de corte transversal único, cuja consecução foi obtida mediante a aplicação de um survey, no qual foram entrevistados 528 indivíduos. Para a análise dos dados, foram utilizados módulos de estatística descritiva e a técnica de modelagem de equações estruturais. Os principais resultados do estudo indicam que a maior parte dos entrevistados está endividada, apresentando maior valor hedônico de compra. Também se destaca o fato de o arquétipo teórico construído com base na literatura não ter alcançado valores de ajuste aceitáveis, demonstrando, além de uma frágil sustentação teórica, um baixo rigor científico das escalas utilizadas de atitude à dívida. Após a reespecificação do modelo teórico, observou-se que a presença hegemônica do valor de consumo hedônico em um indivíduo indica mais eficazmente se ele de fato se endivida.

Palavras-chave: Baixa renda.  Endividamento.  Consumo hedônico.  Consumo utilitário.
PRÁTICAS DE SUSTENTABILIDADE NA GESTÃO DA EMPRESA CRISTÓFOLI EQUIPAMENTOS DE BIOSSEGURANÇA, SITUADA NO MUNICÍPIO DE CAMPO MOURÃO, PARANÁ, BRASIL
Authors: Da Silva Vanderlei Aparecido , De Jesus Marcos Junio Ferreira , Morigi Josimari De Brito , De Souza Adalberto Dias
Published: August 2015

O estudo apresenta uma reflexão sobre as práticas de sustentabilidade adotadas pela empresa Cristófoli Equipamentos de Biossegurança, localizada no Município de Campo Mourão, PR. A pesquisa ocorreu nos moldes de um estudo de caso e a escolha dessa empresa obedeceu ao critério de que ela já tem implantado em sua área de abrangência o Projeto Socioambiental Mil Árvores, o qual busca atuar na educação ambiental da comunidade e no reflorestamento de uma das principais microbacias da região de Campo Mourão. Adotaram-se como procedimentos metodológicos, a pesquisa bibliográfica e a realização de entrevistas com colaboradores da empresa estudada e com coordenadores do Projeto Socioambiental Mil Árvores. Os resultados apontam que a empresa Cristófoli está cada vez mais preocupada em atingir e demonstrar um desempenho ambiental correto, por meio de maior conhecimento e de ações mais sábias, controlando os impactos de suas atividades e produtos, considerando sua prática e seus objetivos ambientais.

Palavras-chave: Educação para a sustentabilidade. Desenvolvimento sustentável. Gestão ambiental empresarial. Ações estratégicas sustentáveis. 
Folha de rosto
Authors: Diersmann Admin Débora
Published: August 2015

Folha de rosto
Childhood Adversity Among Institutionalized Male Juvenile Offenders and Other High-Risk Groups Without Offense Records in Portugal
Authors: Pinto Ricardo José , Fernandes Ana Isabel , Mesquita Cristina , Maia Ângela Costa
Published: August 2015

The literature has shown that delinquent adolescents report high rates of childhood adversity and family dysfunction. However, it is important to know both the degree of adversity among delinquent adolescents in comparison with other high-risk samples and the contribution of each single form of adversity to this comparison. The purpose of this study was to evaluate childhood adversity, psychopathology, and risk behaviors among 4 high-risk groups, including incarcerated delinquent youths. The participants were 120 male youths between 13 and 19 years old (M= 16.18,SD= 1.26), including 30 youths who were arrested and held in detention centers as a consequence of violent crimes; 30 youths who were identified by Child Protective Services (CPS) and remained with their families; 30 youths who were identified by CPS, removed from their homes, and placed in child and youth residential care; and 30 youths who were randomly selected from schools. The incarcerated youths reported significantly more adversity, global psychopathology, and global index of risk behaviors. When considering each risk behavior, the incarcerated youths reported higher percentages of alcohol abuse, drug use, early smoking initiation, physical assault, carrying weapons, early initiation of sexual intercourse, sexual intercourse under the influence of drugs, and sexual intercourse without condom use. The logistic regression analyses showed that only emotional neglect was significantly associated with delinquency. This study suggests that delinquent youths are exposed to a great magnitude of adversities in childhood, with emotional neglect as an independent risk factor for delinquency. In addition, these youths have higher rates of psychopathology and risk behaviors compared to other high-risk samples.
Effects of Childhood Experience of Violence Between Parents and/or Parent-to-Child Violence on Young Israeli Adults’ Global Self-Esteem
Authors: Winstok Zeev
Published: August 2015

The study examines long-term effects of family violence in childhood (violence between parents and/or parent-to-child violence) on adult self-esteem. Data were derived from a sample of 352 university students. Findings show that young adults not exposed to family violence in childhood report the highest self-esteem; lower self-esteem reports were by those experiencing one type of family violence; the lowest self-esteem was reported by those who experienced two types of family violence. In the latter two groups, self-esteem was also affected by frequency of violence. A linkage was identified between the family violence types examined: The more frequent one type of violence, the more frequent the other type. Theoretical and practical implications for the study of effects of family violence on child development are discussed.
Neighborhood-Level LGBT Hate Crimes and Bullying Among Sexual Minority Youths: A Geospatial Analysis
Authors: Hatzenbuehler Mark L. , Duncan Dustin , Johnson Renee
Published: August 2015

The goal of this study was to evaluate a novel measure of environmental risk factors for bullying among sexual minority youths. Data on lesbian, gay, bisexual, and transgender (LGBT) assault hate crimes were obtained from police records, geocoded, and then linked to individual-level data on bullying and sexual orientation from the 2008 Boston Youth Survey Geospatial Dataset (N= 1,292; 108 sexual minorities). Results indicated that sexual minority youths who reported relational and electronic bullying were more likely to reside in neighborhoods with higher LGBT assault hate crime rates. There was no association between LGBT assault hate crimes and bullying among heterosexual youths, providing evidence for specificity to sexual minority youth. Moreover, no relationships were observed between sexual minority bullying and neighborhood-level violent and property crimes, indicating that the results were specific to LGBT assault hate crimes.
Stay-or-Leave Decision Making in Nonviolent and Violent Dating Relationships
Authors: Copp Jennifer E. , Giordano Peggy C. , Longmore Monica A. , Manning Wendy D.
Published: August 2015

Data from the Toledo Adolescent Relationships Study were used to address how specific relationship dynamics, perceived alternatives, social support, and intimate partner violence (IPV) itself influenced breakups among respondents in nonviolent and violent dating relationships (n = 700). Both positive and negative relationship dynamics, perceived alternatives, and messages from significant others predicted whether individuals ended their relationships. In addition, these analyses indicated that violence was not associated with the odds of relationship termination. Among individuals reporting IPV (n = 245), similar factors influenced stay/leave decisions. Finally, the test for a threshold effect of IPV (n = 700) to determine whether higher levels of IPV experience “tipped the scales” and resulted in increased odds of relationship termination demonstrated that greater frequency of relationship violence was not associated with ending the relationship.
A Spatial Analysis of Heterogeneity in the Link Between Alcohol Outlets and Assault Victimization: Differences Across Victim Subpopulations
Authors: Goldstick Jason E. , Brenner Allison B. , Lipton Robert I. , Mistry Ritesh , Aiyer Sophie M. , Reischl Thomas M. , Zimmerman Marc A.
Published: August 2015

The positive association between alcohol outlet density and assault rates is well established, but little is known about how this association differs across victim subpopulations. We use spatial point process models on police data from Flint, Michigan, to test how the link between alcohol outlet density and assault rates changes as a function of three victim characteristics: age, gender, and race. We found that, although both on-premises and package outlet densities consistently emerge as risk factors for victimization, their relative effects are markedly larger in Whites than in African Americans. No analogous age- or gender-based differences were found. These results suggest the racial effects arise more from relative differences in the atmosphere in and around alcohol outlets than differences in drinking behavior alone.
Planned transformations within residential structure in the central zone of Belgrade
Authors: Obradovic Radojko , Strugar Marjana
Published: August 2015

Belgrade?s urban transformations largely mirror the Master Plan of Belgrade
2021 and the consequent detailed regulation plans, consistent with the
national Law on Planning and Construction. A major negative consequence of
contemporary urban transformations in Belgrade?s central compact blocks is a
failure to create common public or semi-public areas in the center of the
blocks, and a complete disregard to their importance. Any transformation in
the future needs not only to correspond to the needs of citizens, but meet
them on a larger scale, too, while creating an optimal ratio between
sustainable development and maximum economic benefits for property owners,
the city and the state. Only a good balance between these parameters can
create the best possible conditions for growth. It can protect the city
against heavy dependence on developers, and allow property owners to invest
and save their urban units.
c-Kit Receptor Signaling Regulates Islet Vasculature, β-Cell Survival, and Function In Vivo
Authors: Feng Zhi-Chao , Popell Alex , Li Jinming , Silverstein Jenna , Oakie Amanda , Yee Siu-Pok , Wang Rennian
Published: August 2015

The receptor tyrosine kinase c-Kit plays an integral role in maintaining β-cell mass and function. Although c-Kit receptor signaling promotes angiogenesis in multiple cell types, its role in islet vasculature is unknown. This study examines the effects of c-Kit–mediated vascular endothelial growth factor isoform A (VEGF-A) and islet vascularization on β-cell function and survival using in vitro cell culture and in vivo mouse models. In cultured INS-1 cells and primary islets, c-Kit regulates VEGF-A expression via the Akt/mammalian target of rapamycin (mTOR) signaling pathway. Juvenile mice with mutated c-Kit (c-KitWv/+) showed impaired islet vasculature and β-cell dysfunction, while restoring c-Kit expression in β-cells of c-KitWv/+ mice rescued islet vascular defects through modulation of the Akt/mTOR/VEGF-A pathway, indicating that c-Kit signaling in β-cells is a required regulator for maintaining normal islet vasculature. Furthermore, β-cell–specific c-Kit overexpression (c-KitβTg) in aged mice showed significantly increased islet vasculature and β-cell function, but, when exposed to a long-term high-fat diet, c-Kit signaling in c-KitβTg mice induced substantial vascular remodeling, which resulted in increased islet inflammatory responses and β-cell apoptosis. These results suggest that c-Kit–mediated VEGF-A action in β-cells plays a pivotal role in maintaining islet vascularization and function.
Sex Differences in the Association Between Birth Weight and Adult Type 2 Diabetes
Authors: Zimmermann Esther , Gamborg Michael , Sørensen Thorkild I.A. , Baker Jennifer L.
Published: August 2015

Low birth weight is a well-established risk factor for type 2 diabetes, but the risk at high birth weight levels remains uncertain. Potential sex differences in the associations are unexplored. We investigated whether sex influences the association of birth weight and adult type 2 diabetes, using a cohort of 113,801 men and 109,298 women, born 1936–1983, from the Copenhagen School Health Records Register, Denmark. During 5.6 million person-years of follow-up, 7,750 men and 4,736 women had a diagnosis of adult type 2 diabetes (30 years of age or older) obtained from national registers. When birth weights between 3.251 and 3.750 kg were used as the reference group for each sex separately, women with birth weights in the categories of 2.000 to 2.750 kg and 4.751 to 5.500 kg had hazard ratios [HRs] of type 2 diabetes of 1.46 (95% CI, 1.34–1.59) and 1.56 (1.20–2.04), respectively, whereas men had HRs of 1.20 (1.12–1.30) and 0.93 (0.76–1.15). Thus, sex modified the association, with stronger risk estimates of type 2 diabetes in women at both low and high birth weights compared with men (P = 0.001). In conclusion, birth weight is more strongly associated with type 2 diabetes in women than in men. Future search for sex-specific causal mechanisms may provide new insights into the early origins of type 2 diabetes.
RAGE Suppresses ABCG1-Mediated Macrophage Cholesterol Efflux in Diabetes
Authors: Daffu Gurdip , Shen Xiaoping , Senatus Laura , Thiagarajan Devi , Abedini Andisheh , Hurtado del Pozo Carmen , Rosario Rosa , Song Fei , Friedman Richard A. , Ramasamy Ravichandran , Schmidt Ann Marie
Published: August 2015

Diabetes exacerbates cardiovascular disease, at least in part through suppression of macrophage cholesterol efflux and levels of the cholesterol transporters ATP binding cassette transporter A1 (ABCA1) and ABCG1. The receptor for advanced glycation end products (RAGE) is highly expressed in human and murine diabetic atherosclerotic plaques, particularly in macrophages. We tested the hypothesis that RAGE suppresses macrophage cholesterol efflux and probed the mechanisms by which RAGE downregulates ABCA1 and ABCG1. Macrophage cholesterol efflux to apolipoprotein A1 and HDL and reverse cholesterol transport to plasma, liver, and feces were reduced in diabetic macrophages through RAGE. In vitro, RAGE ligands suppressed ABCG1 and ABCA1 promoter luciferase activity and transcription of ABCG1 and ABCA1 through peroxisome proliferator–activated receptor-γ (PPARG)–responsive promoter elements but not through liver X receptor elements. Plasma levels of HDL were reduced in diabetic mice in a RAGE-dependent manner. Laser capture microdissected CD68+ macrophages from atherosclerotic plaques of Ldlr−/− mice devoid of Ager (RAGE) displayed higher levels of Abca1, Abcg1, and Pparg mRNA transcripts versus Ager-expressing Ldlr−/− mice independently of glycemia or plasma levels of total cholesterol and triglycerides. Antagonism of RAGE may fill an important therapeutic gap in the treatment of diabetic macrovascular complications.