bluuebunny/crossref_metadata_2025 huggingface dataset:
Anuros de uma área de Caatinga no Município de Caetés, Região Agreste do Estado de Pernambuco, Brasil
Authors: Oliveira Rogério Ferreira de , Vieira Leandro da Rocha , Vieira Alexandre Gomes Teixeira
Published: July 2017

A anurofauna é encontrada em todos os biomas brasileiros, porém, é na Caatinga onde é mais surpreendente sua existência, devido a capacidade de adaptação das espécies ao regime semiárido. Dessa forma, este trabalho objetiva inventariar a anurofauna em uma área de Caatinga em Caetés, Agreste pernambucano. Para coleta de dados foram realizadas incursões diurnas e noturnas na área de estudo, utilizando o método de busca ativa, no período de setembro de 2012 a dezembro de 2015, bem como registro fotográfico e zoofônico das espécies encontradas no local. Foi registrado um total de 35 espécies de anfíbios anuros, distribuídos entre as famílias Bofonidae (3 spp.), Ceratophryidae (1 sp.), Cycloramphidae (3 spp.), Hylidae (15 spp.), Leiuperidae (6 spp.), Leptodactylidae (3 spp.), Microhylidade (1 sp.), Phyllomedusidae (2 spp.) e Pipidae (1 sp.). A família mais representativa foi Hylidae com 43%, enquanto que Ceratophryidae, Microhylidae e Pipidae foram menos representativas, com 3%. O presente estudo traz informações relevantes a respeito da anurofauna local e do bioma Caatinga, uma vez que inventários em diferentes localidades são importantes para medidas de conservação dos recursos naturais e da biodiversidade.
Mosaicos de áreas protegidas criados em território nacional brasileiro e estratégias para a sua gestão
Authors: Pellin Andrea , Pellin Angela , Scherer Marinez Eymael Garcia
Published: July 2017

O principal objetivo da instituição dos mosaicos é promover uma gestão integrada e participativa das áreas protegidas que o compõem. Entretanto, apesar do seu potencial para contribuir para o ordenamento e gestão do território, este instrumento ainda é pouco difundido e enfrenta diversos desafios para sua implementação. Este trabalho teve como objetivo realizar um levantamento dos mosaicos existentes no país, bem como das estratégias que têm sido utilizadas para a sua gestão, com o intuito de fornecer uma contribuição para a discussão sobre a importância desse instrumento para a gestão das áreas protegidas no Brasil. Atualmente existem 24 mosaicos reconhecidos no país, sendo 15 federais e nove estaduais. O primeiro a ser reconhecido foi o Mosaico do Tucuruí, no Estado do Pará, em 2002, e o mais recente é o Mosaico do Jalapão, na Bahia, reconhecido em setembro de 2016. Dentre as estratégias de gestão identificadas destacam-se a formação do conselho gestor, a elaboração de um plano de manejo, a instalação de uma secretaria executiva, a gestão compartilhada, o envolvimento da comunidade e estabelecimentos de corredores ecológicos. Acredita-se que para essas iniciativas alcançarem seus objetivos será necessária uma nova postura na gestão das áreas protegidas, que precisarão investir mais no planejamento e desenvolvimento de ações mais integradas e na ampliação do diálogo com a sociedade.
SUPERVISED MACHINE LEARNING MODEL FOR MICRORNA EXPRESSION DATA IN CANCER
Authors: Waspada Indra , Wibowo Adi , Meraz Noel Segura
Published: July 2017

The cancer cell gene expression data in general has a very large feature and requires analysis to find out which genes are strongly influencing the specific disease for diagnosis and drug discovery. In this paper several methods of supervised learning (decisien tree, naïve bayes, neural network, and deep learning) are used to classify cancer cells based on the expression of the microRNA gene to obtain the best method that can be used for gene analysis. In this study there is no optimization and tuning of the algorithm to test the ability of general algorithms. There are 1881 features of microRNA gene epresi on 25 cancer classes based on tissue location. A simple feature selection method is used to test the comparison of the algorithm. Expreriments were conducted with various scenarios to test the accuracy of the classification.
Intermittent stream flow forecasting and modelling with hybrid wavelet neuro-fuzzy model
Authors: Badrzadeh Honey , Sarukkalige Ranjan , Jayawardena A. W.
Published: July 2017

In this paper, an advanced stream flow forecasting model is developed by applying data-preprocessing techniques on adaptive neuro-fuzzy inference system (ANFIS). Wavelet multi-resolution analysis is coupled with an ANFIS model to develop a hybrid wavelet neuro-fuzzy (WNF) model. Different models with different input selection and structures are developed for daily, weekly and monthly stream flow forecasting in Railway Parade station on Ellen Brook River, Western Australia. The stream flow time series is decomposed into multi-frequency time series by discrete wavelet transform using the Haar, Coiflet and Daubechies mother wavelets. The wavelet coefficients are then imposed as input data to the neuro-fuzzy model. Models are developed based on Takagi-Sugeno-Kang fuzzy inference system with the grid partitioning approach for initializing the fuzzy rule-based structure. Mean-square error and Nash-Sutcliffe coefficient are chosen as the performance criteria. The results of the application show that the right selection of the inputs with high autocorrelation function improves the accuracy of forecasting. Comparing the performance of the hybrid WNF models with those of the original ANFIS models indicates that the hybrid WNF models produce significantly better results especially in longer-term forecasting.
Sources of pharmaceuticals and personal care products in swimming pools
Authors: Suppes Laura M. , Huang Ching-Hua , Lee Wan-Ning , Brockman Kyle J.
Published: July 2017

Pharmaceuticals and personal care products (PPCPs) in swimming pool water are hypothesized to originate from fill water and anthropogenic sources like urine, sweat, swimwear and body surfaces. However, research exploring PPCP origins in pools is lacking. This research investigates PPCP sources at 31 swimming pools. Pool water was analyzed for 24 representative PPCPs using advanced liquid chromatography-mass spectrometry techniques. Fill water was analyzed as a contamination source and to determine if swimmers introduce PPCPs to pools. Results show every PPCP in fill water was present in pools except one, suggesting fill water is a PPCP source at pools. The presence of the antidepressant fluoxetine in 26% of pools and 0% of fill water indicates swimmers introduce pharmaceuticals. The flame retardant (tris(2-carboxyethyl)phosphine (TCEP)) was present 48% more frequently in pool than fill water, suggesting TCEP is introduced by body surfaces or swimwear. Enforcing showering and bathroom breaks is recommended to reduce PPCP contamination from swimmers.
Compliance of brown mussel (Perna perna) production areas in the South of Brazil with the bacteriological criteria of the shellfish hygiene systems in the European Union and United States of America: assessing the impacts on consumer safety
Authors: de Souza Robson Ventura , de Campos Carlos José Alexandre , Garbossa Luis Hamilton Pospissil , Seiffert Walter Quadros
Published: July 2017

Levels of faecal indicator organisms (FIOs) monitored in surface water and brown mussels collected at 28 production areas in Brazil from August 2012 to October 2013 were used to assess compliance with the bacteriological standards of the shellfish hygiene classification systems used in the European Union (EU) and USA. This classification determines the level of post-harvesting purification needed to reduce the risk of illness in consumers. The results indicate that 36% of production areas would be class A under the EU system and 75% would be ‘Approved’ under the US system. Mathematical models showed that a 90th percentile of FIO levels in water of 43 MPN (most probable number) 100 mL−1 (standard for ‘Approved’ areas under the US system) would correspond to an 80th percentile of FIO levels in mussels of 572 MPN 100 g−1. This concentration is more than double that in the class A standard in the EU system. These results have important implications for public health since no post-harvesting purification is required for any of these classification categories. Areas compliant with the US ‘Restricted’ and EU class B standards, however, provide similar levels of consumer safety.
Inflammatory Biomarkers in Atrial Fibrillation
Authors: Zacharia Effimia , Papageorgiou Nikolaos , Ioannou Adam , Siasos Gerasimos , Papaioannou Spyridon , Vavuranakis Manolis , Latsios George , Vlachopoulos Charalampos , Toutouzas Konstantinos , Deftereos Spyridon , Providência Rui , Tousoulis Dimitris
Published: July 2017

During the last few years, a significant number of studies have attempted to clarify the underlying mechanisms that lead to the presentation of atrial fibrillation (AF). Inflammation is a key component of the pathophysiological processes that lead to the development of AF; the amplification of inflammatory pathways triggers AF, and, in tandem, AF increases the inflammatory state. Indeed, the plasma levels of several inflammatory biomarkers are elevated in patients with AF. In addition, the levels of specific inflammatory biomarkers may provide information regarding to the AF duration. Several small studies have assessed the role of anti-inflammatory treatment in atrial fibrillation but the results have been contradictory. Large-scale studies are needed to evaluate the role of inflammation in AF and whether anti-inflammatory medications should be routinely administered to patients with AF.
Visible Blue Light Therapy: Molecular Mechanisms and Therapeutic Opportunities
Authors: Garza Z.C. Félix , Born M. , Hilbers P.A.J. , van Riel N.A.W. , Liebmann J.
Published: July 2017

Background:

Visible light is absorbed by photoacceptors in pigmented and non-pigmented
mammalian cells, activating signaling cascades and downstream mechanisms that lead to the modulation
of cellular processes. Most studies have investigated the molecular mechanisms and therapeutic applications
of UV and the red to near infrared regions of the visible spectrum. Considerably less effort has
been dedicated to the blue, UV-free part of the spectrum.

Objective:

In this review, we discuss the current advances in the understanding of the molecular photoacceptors,
signaling mechanisms, and corresponding therapeutic opportunities of blue light photoreception
in non-visual mammalian cells in the context of inflammatory skin conditions.

Methods:

The literature was scanned for peer-reviewed articles focusing on the molecular mechanisms,
cellular effects, and therapeutic applications of blue light.

Results:

At a molecular level, blue light is absorbed by flavins, porphyrins, nitrosated proteins, and opsins;
inducing the generation of ROS, nitric oxide release, and the activation of G protein coupled signaling.
Limited and contrasting results have been reported on the cellular effects of blue light induced
signaling. Some investigations describe a regulation of proliferation and differentiation or a modulation
of inflammatory parameters; others show growth inhibition and apoptosis. Regardless of the elusive underlying
mechanism, clinical studies show that blue light is beneficial in the treatment of inflammatory
skin conditions.

Conclusion:

To strengthen the use of blue light for therapeutic purposes, further in depth studies are
clearly needed with regard to its underlying molecular and cellular mechanisms, and their translation
into clinical applications.
Atrial Fibrillation: Biomarkers Determining Prognosis
Authors: Mazaris Savas , Siasos Gerasimos , Oikonomou Evangelos , Tsigkou Vicky , Vavuranakis Manolis , Kokkou Eleni , Zaromitidou Marina , Papamikroulis Georgios-Angelos , Papavassiliou Athanasios G , Papaioannou Spyridon , Papageorgiou Nikolaos , Latsios George , Stefanadis Christodoulos , Tousoulis Dimitris
Published: July 2017

Atrial fibrillation (AF) is a common cardiac arrhythmia known to incite increased
thromboembolic and mortality risks, especially among patients not under anticoagulant
therapy when indicated. Several routine scores exist to help stratify AF patients,
such as the CHAD2DS2-VASc score and upon which physicians are based to decide
whether to administer anticoagulant therapy. Being that anticoagulant regimen is a double-
edged situation with both benefits and risks, decision-making process demands a definite
and reliable, evidence-based set of data to rely on. Blood-based biological elements
known as biomarkers are measurable indices that can provide crucial insights concerning
not only underlying disease mechanisms but also prognostic and risk stratifying information.
As AF is constituted by an overwhelming range of pathophysiological aspects such
as inflammation, fibrosis, hypercoagulable states and myocardial damage, identifying and
assessing relevant biomarkers will evidently support the clinician’s prognostication efforts.
The current reviewpresents studied biomarkers with proven prognostic potential in
AF as well as possible enhancement of risk-scores when incorporated to them.
Antiproliferative Effects of Nerium oleander Stem and Mitotic Ar rest Induced by Cardenolide Odoroside B on NCI-H460 Cancer Cells
Authors: Qamar Kehkashan Arshad , Farooq Ahsana Dar , Siddiqui Bina S. , Kabir Nurul , Khatoon Naseema , Ahmed Shakil , Erum Shaista , Begum Sabira
Published: July 2017

Background:

Nerium oleander extract preparations have been used in the Arab folkmedicine
for the treatment of solid tumors.

Objective:

In the current investigation, bioassay-guided fractionation of N. oleander stem methanolic
extract was performed to identify the active compound(s) responsible for its antiproliferative
activity and the mechanism of action of the active compounds was explored.

Methods:

The methanolic extract, fractions and sub-fractions were screened against four human
cancer cell lines: HT-144, MCF-7, NCI-H460 and SF-268 using sulforhodamine B assay. The effects
of the active compounds on the cytoskeleton and nuclei of NCI-H460 cells were studied using
immunofluorescence microscopy.

Results:

The more active petroleum ether insoluble sub-fraction led to the isolation of five pure
compounds viz adynergenin, adynerin, hemidesmin-2, odoroside A and odoroside B. Odoroside A
was the most potent compound with GI50: 0.04 and LC50: 0.74 µM against NCI-H460 cell line,
while odoroside B demonstrated moderate growth inhibition and cytotoxicity (GI50: 6.7; LC50: 54
µM). After 24 hours' treatment with odoroside B (50 µM) abnormal mitotic spindles were observed,
while > 90% mitotic cells were arrested in the prophase stage.

Conclusion:

N. oleander stem possesses significant antiproliferative effects against the aforementioned
cell lines and the cardenolide odoroside B induces mitotic arrest of NCI-H460 cells in the
prophase stage.
Withdrawn: Intraoperative Sono-photodynamic Therapy for Anaplastic Astrocytoma Grade III With Transformation in Glioblastoma Grade IV
Authors: Tzerkovsky Dmitry , Borichevsky Fedor , Grachev Yuri , Istomin Yuri
Published: July 2017

The following article has been withdrawn on the request of the editor of the journal Clinical Cancer Drugs:

Title: Intraoperative Sono-photodynamic Therapy for Anaplastic Astrocytoma Grade III with Transformation in Glioblastoma
Grade IV

Authors: Dmitry Tzerkovsky*, Fedor Borichevsky, Yuri Grachev, Yuri Istomin

Bentham Science apologizes to the readers of the journal for any inconvenience this may cause Bentham Science Disclaimer:
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authors, if plagiarism or fabricated information is discovered. By submitting a manuscript, the authors agree that the copyright
of their article is transferred to the publishers if and when the article is accepted for publication.
The Synergistic Effect of Doxorubicin and Ethanolic Extracts of Caesalpinia sappan L. Wood and Ficus septica Burm. f. Leaves on Viability, Cell Cycle Progression, and Apoptosis Induction of MCF­7 Cells
Authors: Haryanti Sari , Pramono Suwijiyo , Murwanti Retno , Meiyanto Edy
Published: July 2017

Caesalpinia sappan L. and Ficus septica Burm. f  known asa potential plant with wide variety of medicinal properties, including anticancer. Present study was aimed to explore cytotoxic effect ofsappan wood (ECS) and awar-awar leaves (EFS), and its combination with doxorubicin (dox) on MCF-7 cells focusing on cell cycle progression and apoptosis induction.The result of MTT assay showed that single treatment of ECS and dox performed cytotoxic effect with the IC50 value of 32 µg/mL and 6 µM respectively, while EFS performed low cytotoxic effect with the IC50 value of 282 µg/mL. The combination of ECS with EFS and doxorubicin showed synergistic cytotoxic effect. Flow cytometry analysis revealed that combination of ECS (16 µg/mL) with EFS (8 µg/mL) and doxorubicin (2 µM) induced apoptosis, and cell accumulation at sub-G1 and G2/M phases.Immunoblotting assay confirmed the apoptosis induction of this combination through increasing of cleavage of PARP-1. Based on these results, the synergistic cytotoxic effect of this combinationwas through G2/M phase accumulation and apoptosis inductionand potentially to be developed as co-chemotherapeutic agent.
SISTEM PENGAMBILAN KEPUTUSAN PENERIMAAN BEASISWA DENGAN SIMPLE MULTI ATTRIBUTE RATING TECHNIQUE ( Studi Kasus Pada SMA Yuppentek 1 Tangerang)
Authors: Manikam Ratna Mutu , Yanuar Mohamad Yogi
Published: July 2017

SMA Yuppentek 1 Tangerang adalah sekolah menengah atas yang memberikan beasiswa kepada siswa. Pemberian beasiswa dilakukan dengan cara sekolah yang menentukan siswa mana yang berhak mendapatkan beasiswa. Untuk membantu penentuan dalam menetapkan siswa yang layak menerima beasiswa maka dibutuhkan sebuah system pengambilan keputusan. Dalam pembuatan proses sistem pengambilan keputusan untuk menentukan penerima beasiswa di SMA Yuppentek 1 Tangerang mengggunakan metode Simple Multi-Attribute Rating Technique (SMART). Metode ini dipilih karena teknik pengambilan keputusan multi kriteria ini didasarkan pada teori bahwa setiap alternatif terdiri dari sejumlah kriteria yang memiliki nilai-nilai dan setiap kriteria memiliki bobot yang menggambarkan seberapa penting ia dibandingkan dengan kriteria lain.
The use of recycled crushed clay brick aggregate for the purpose of forming a prefabricated façade panel
Authors: Vojnovic-Calic Tijana , Jevtic Dragica , Krstic-Furundzic Aleksandra
Published: July 2017

The contemporary 4R concept of waste management, in accordance with the
globally spread trend of sustainability, promotes: reducing the amount of
waste at the source, reusing of elements and their parts, recycling in order
to produce raw material and recovering of the embodied energy. Discarded
bricks from building demolition sites considered in this research could be
reused, but also crushed in appropriate facilities and employed as aggregate
in various cement composites. This paper investigates the possibility of
using such recycled crushed clay brick material as aggregate in a
prefabricated composite fa?ade panel with the face of stone, which can be
used in a ventilated fa?ade system. It describes the production process of a
pilot element, and further suggests the details of the fa?ade cladding
technology concerning the proposed element, i.e. its production technology
options, as well as transport and installation technologies. The paper
further displays various design possibilities of the panel closely related to
the production technology options, as well as observed aspects of
sustainability and cost effectiveness relevant to the application of the
proposed fa?ade panel. The research contributes to the contemporary course of
sustainability within the construction industry by proposing an example of
forming a new prefabricated building element using recycled building
demolition waste material.
Cognitive performances of pedestrian spaces
Authors: Vukmirovic Milena , Folic Branislav
Published: July 2017

If the city and its physical structure are understood as some kind of an
extended, external memory of the human mind, two aspects are observable. The
first relates to the characteristics of the city and its places to help in
the orientation and way finding of its citizens and visitors. They could be
explored through mental or cognitive maps. The second aspect includes the
elements involved in generating the image and identity of the city. Looking
at the pedestrian space as an environment that achieves the most intimate
relationship of users and the city, the paper would present the elements that
can be seen as cognitive performances of pedestrian spaces. They will be
analysed at the area of the City of Belgrade, central pedestrian network with
the aim to identify existing and to propose future elements that will
contribute to its extension and intensive use.
Spatial and functional structure of rural settlements in municipalities of Nis
Authors: Igic Milica , Mitkovic Petar , Dinic-Brankovic Milena , Djekic Jelena , Mitkovic Mihailo
Published: July 2017

Rural areas represent areas that are different from other areas in terms of
economic, social, demographic and cultural development. The differences are
determined by multiple factors - geomorphological characteristics,
population, economic structure, infrastructure and utilities as well as the
developmental potential of certain areas, all of which present the basis for
the development of strategic plans. This paper discusses main characteristics
of spatial and functional structure of rural areas situated within the
municipalities of Nis. Many settlements, even when they stand next to each
other, differ in terms of their inner organization and structure. But also,
there are many elements that are common for the settlements in a certain
area. The aim of this paper is to analyze functional and spatial structure of
these settlements and to point out their similarities. Influence of the
geographical location and historical background will be also analyzed.
Because of their specific terrain conditions and due to the influence of
historical events, these settlements had a very strong impact of Ottoman
architecture and some of the evidence are present in their structure even
today. On the other hand, because of their favorable location, air pollution
is lower than in the cities which makes the quality of life better.
Design of microwave waveguide filters with effects of fabrication imperfections
Authors: Mrvic Marija , Stefanovski-Pajovic Snezana , Potrebic Milka , Tosic Dejan
Published: July 2017

This paper presents results of a study on a bandpass and bandstop waveguide
filter design using printed-circuit discontinuities, representing resonating
elements. These inserts may be implemented using relatively simple types of
resonators, and the amplitude response may be controlled by tuning the
parameters of the resonators. The proper layout of the resonators on the
insert may lead to a single or multiple resonant frequencies, using single
resonating insert. The inserts may be placed in the E-plane or the H-plane of
the standard rectangular waveguide. Various solutions using quarter-wave
resonators and split-ring resonators for bandstop filters, and complementary
split-ring resonators for bandpass filters are proposed, including multi-band
filters and compact filters. They are designed to operate in the X-frequency
band and standard rectangular waveguide (WR-90) is used. Besides three
dimensional electromagnetic models and equivalent microwave circuits,
experimental results are also provided to verify proposed design. Another
aspect of the research represents a study of imperfections demonstrated on a
bandpass waveguide filter. Fabrication side effects and implementation
imperfections are analyzed in details, providing relevant results regarding
the most critical parameters affecting filter performance. The analysis is
primarily based on software simulations, to shorten and improve design
procedure. However, measurement results represent additional contribution to
validate the approach and confirm conclusions regarding crucial phenomena
affecting filter response.
On some common compressive sensing recovery algorithms and applications
Authors: Draganic Andjela , Orovic Irena , Stankovic Srdjan
Published: July 2017

Compressive Sensing, as an emerging technique in signal processing is
reviewed in this paper together with its common applications. As an
alternative to the traditional signal sampling, Compressive Sensing allows a
new acquisition strategy with significantly reduced number of samples needed
for accurate signal reconstruction. The basic ideas and motivation behind
this approach are provided in the theoretical part of the paper. The commonly
used algorithms for missing data reconstruction are presented. The
Compressive Sensing applications have gained significant attention leading to
an intensive growth of signal processing possibilities. Hence, some of the
existing practical applications assuming different types of signals in
real-world scenarios are described and analyzed as well.
Spectral parameters for finger tapping quantification
Authors: Bobic Vladislava , Djuric-Jovicic Milica , Jarrasse Nathanael , Jecmenica-Lukic Milica , Petrovic Igor , Radovanovic Sasa , Dragasevic Natasa , Kostic Vladimir
Published: July 2017

A miniature inertial sensor placed on fingertip of index finger while
performing finger tapping test can be used for an objective quantification of
finger tapping motion. Temporal and spatial parameters such as cadence,
tapping duration, and tapping angle can be extracted for detailed analysis.
However, the mentioned parameters, although intuitive and simple to
interpret, do not always provide all the necessary information regarding the
subject?s motor performance. Analysis of frequency content of the finger
tapping movement can provide crucial information about the patient's
condition. In this paper, we present parameters extracted from spectral
analysis that we found to be significant for finger tapping assessment. With
these parameters, tapping?s intra-variability, movement smoothness and
anomalies that may occur within the tapping performance can be detected and
described, providing significant information for further diagnostics and
monitoring progress of the disease or response to therapy.
Automatic optimized document skew pre-processor for character segmentation algorithm
Authors: Vuckovic Vladan , Arizanovic Boban
Published: July 2017

In this paper, as a part of character segmentation algorithm, an automatic
optimized document skew correction approach based on Hough transform is
presented. The importance of skew correction in document image analysis lies
in the fact that further processing is impossible if the document image is
skewed. The proposed approach is based on fast implementation of the standard
Hough transform which is followed by highly optimized low-level machine code
implementation of the image rotation. In order to achieve high computational
results, linear image representation is used. The proposed approach results
from the aspect of time complexity and skew estimation accuracy which are
analyzed and compared with the already existing skew correction approaches.
The proposed approach gives better results compared with analogous approach
used in related work, but it gives worse results compared with optimized
version which exploits a BAG algorithm. Provided results show significant
improvement of the standard Hough transform implementation.
ENSINO PRESENCIAL E VIRTUAL EM SINTONIA NA FORMAÇÃO EM LÍNGUAS ESTRANGEIRAS
Authors: MAYRINK Mônica Ferreira , ALBUQUERQUE-COSTA Heloísa
Published: July 2017

O objetivo deste artigo é discutir a importância de integrar as tecnologias ao ensino presencial de línguas estrangeiras, como uma forma de ampliar os espaços de aprendizagem e de engajar o aluno em práticas linguísticas condizentes com aquelas que ele costuma realizar em contextos de interação online fora do espaço escolar. A reflexão se apoia no uso que fazemos da Plataforma Moodle no ensino presencial de língua espanhola e francesa em contexto universitário, e enfatiza, especialmente, a forma como a integração das Tecnologias de Informação e de Comunicação (TIC), ressignificadas como Tecnologias para a Aprendizagem e o Conhecimento (TAC), também contribui nas aulas de cursos de Letras, para a formação do futuro professor.
VIVENCIANDO INGLÊS COM KAHOOT
Authors: GAZOTTI-VALLIM Maria Aparecida , GOMES Silvia Trentin , FISCHER Cynthia Regina
Published: July 2017

Este artigo visa a apresentar duas atividades elaboradas na plataforma digital Kahoot que fazem parte de uma unidade didática para o ensino de inglês como língua estrangeira e analisar seu potencial para o desenvolvimento de aprendizagem significativa, segundo Carl Rogers. Para o autor, esse tipo de aprendizagem parte das necessidades e interesses do aprendiz e deve fazer sentido em sua vida pessoal, mobilizando aspectos emocionais e cognitivos. O Kahoot foi utilizado com o intuito de inserir um recurso tecnológico interativo que se apropria de elementos dos jogos (gamificação) para engajar os usuários na aprendizagem de língua inglesa. Essas atividades foram aplicadas em três aulas de sessenta minutos para duas alunas de dez e quinze anos e objetivaram descrever características físicas e da personalidade de duas pessoas famosas indicadas pelos aprendizes. As atividades fazem parte da unidade didática cujo objetivo é ensinar como descrever pessoas famosas. Percebeu-se que o trabalho proposto foi adequado para o desenvolvimento da aprendizagem significativa.
MOVIMENTOS READY-MADE, POP ART E DE REMIDIAÇÃO NO ENSINO DE LÍNGUAS
Authors: TANZI NETO Adolfo , PRADO Clara Vianna
Published: July 2017

A presença das tecnologias digitais na sociedade atual influencia cada vez  A presença das tecnologias digitais na sociedade atual influencia cada vez mais a nossa comunicação e novas linguagens são introduzidas em nosso cotidiano diariamente. Entretanto, notamos que as transformações ocorridas não aparecem de forma descontextualizada, mas são reflexos de processos anteriores, que se descontroem e se reconstroem de objetos e tecnologias passadas, similar a movimentos artísticos que se apropriam do anterior, buscando a criação de algo novo. Este artigo busca fazer um paralelo entre os movimentos Ready-made, Pop Art e o conceito de remidiação (BOLTER; GRUSIN, 2000) para repensarmos o contexto escolar, uma vez que entendemos que este se encontra em um processo de expansão de seus conceitos de ensino-aprendizagem. Para tanto discutimos sobre o(s) letramento(s) em tempos de comunicação digital, tecendo considerações sobre as possibilidades de utilização do conceito remidiação para o ensino de línguas, uma vez que entendemos que essa temática possibilita interdisciplinaridade com outras áreas do conhecimento contemporâneo.
INTERAGINDO E APRENDENDO COM A TECNOLOGIA: A WEBQUEST NA SALA DE AULA DE LÍNGUAS
Authors: PORTO Cristina Vasconcelos
Published: July 2017

Esta pesquisa tem por objetivo apresentar os resultados da construção colaborativa de uma Webquest no contexto de sala de aula de língua estrangeira. Entre as conclusões obtidas, observamos que, independentemente de seu nível de proficiência, os alunos criaram a Webquest num ambiente de aprendizagem colaborativa. Essa interação criou oportunidades para que os alunos aprendessem uns com os outros e se sentissem motivados e responsáveis pela sua própria aprendizagem.
HOMEPAGE: UM MATERIAL EDUCACIONAL DIGITAL NA APRENDIZAGEM DE INGLÊS
Authors: ARAÚJO Marcus De Souza , MACEDO Tatiana S. de
Published: July 2017

Este artigo tem como objetivo relatar uma atividade de produção escrita em inglês dos gêneros discursivos apresentação pessoal e homepage no contexto acadêmico. O estudo se desenvolve por meio de referenciais teóricos da perspectiva do material didático (DUDLEY EVANS; ST. JOHN, 1998; GRAVES, 2000; RAMOS, 2009; entre outros), da escrita como processo (BROWN, 2004; DIAS, 2004; FIGUEIREDO, 2005) e de contribuições da tecnologia digital no ensino de línguas (PRENSKY, 2012; ROJO, 2012; entre outros).  A atividade relatada levou em consideração a abordagem da escrita como processo, ou seja, geração e estruturação das ideias, rascunho, avaliação, revisão, correção em pares, edição.  Pensando no compartilhamento das produções escritas dos alunos, o resultado final da atividade foi a criação coletiva de uma homepage para a publicação do gênero apresentação pessoal, além de postagens de vídeos e sugestões de sites e outros links. Os resultados da pesquisa apontam aumento na motivação dos alunos em processo de formação inicial para produzir gêneros escritos a partir das tecnologias digitais.
Effect of Gyttja and Nitrogen Applications on Growth and Flowering of Snapdragons (Antirrhinum majus L.) Plant in the Two Soils Depth
Authors: Mjeed Ardalan J , Ali Mariwan A.
Published: July 2017

Plant morphological attribute has been reported to be increased through the application of organic material (Gyttja) to the soil. Snapdragons (Antirrhinum majus L.) was studied under plastic house conditions to determine the effect of two different soil depth-SH (0-20 cm and 20- 40 cm), four different gyttja doses-GD (0, 1, 2, and 3%), and three different nitrogen doses-ND (0, 140, and 280 mg kg-1) on some of the plant’s morphological characters;  Plant Height (PH), Fresh Weight Per Plant (FWP), Number of Leaves Per Plant(NLP), Stem Diameter(SD), Number of Branches Per Plant (NBP), Number of  Flower Per Spikes (NFPS) and  Flower Spike Length (FSL). The results showed that gyttja application at doses of 3%, significantly increased PH, SD, NBP, NFPS, and FSL, while FWP increased only at 2% gyttja application dose and decreased at the 3% dose.  The application of 280 mg kg-1 of nitrogen significantly increased (PH, FWP, NLP, NBP, NFPS and FSL). All parameters increased at (0-20 cm) soil depth, and the GD x SH x ND interaction had a significant effect on (SD, NLP, NFPS and FSL). These results suggest that adding of gyttja with nitrogen fertilizer to the calcareous and infertile soil will enhance the morphological attributes of plants.
Assessment the knowledge of mothers regarding Diarrhea of Children less than five years at Internally Displaced Persons (IDPs) Arbit camp: A descriptive study
Authors: Kasem Attallah Omer , Abas Layla Abdulkhalk , Ezzaddin Shahow Abdulrahman , Ahmed Ibrahim Tofiq , Saleem Rozhgar Abdulla , Maulud Awaz Kamal
Published: July 2017

Diarrhea is the 2nd chief reason of child death widespread. Low- and middle-income countries are especially exhausting with this both avoidable and treatable condition. Aim: To investigate how children’s health less than five years affected by diarrhea at Internally Displaced Persons (IDPs) in Arbit camp. This study was carried out from december22th 2015 to march 20th 2016. Non-probability sampling a convenience sample of (103) mothers of internally Displaced Persons (IDPs) Arbit camp were selected for the purpose of the study.. It was comprised of two parts; the first part includes the mothers' demographic attributes and the second part assessed the knowledge of diarrhea with (20) yes or on questions. The main results obtained from the study are as follows, more than the half (54.40%) of mothers are (18-25) years old, the (49.50%) of mothers have moderate Socio-economic status, (99.00%of mothers are housewife,, also (54.40%) of the mothers have one child less than five years. The (46.60%) of mothers are illiterate and only (32.00%) of husband read and write and According to the family size of the study (51.50%) of mothers has five children. About the distance of water sources (56.30%) of mothers needs more than 5 minutes to reach water sources, (47.60%) of them have received health education regarding diarrhea held in primary health care center. There was statistically significant relationship between mother’s knowledge of diarrhea and (age group, educational level of husband, educational level of the mother, and occupational status of mother, socioeconomic status, and source of information). So the following recommendation is  suggested, highlight the need for excessive nutritional educational program, about diarrhea should be implemented for mothers, good sanitation and improvement of housing conditions especially water resources at arbit camp
Power Station Based on the Energy ot the Sea Waves.
Authors: Ratko Isidorović  , Janko Isidorović
Published: July 2017

In this paper is shown working principal of wave pump, which simultaneously draws energy from larger number of sea waves. The pump could pump the water, but also the air. It is possible to form particular systems, wave electric power stations, made of larger number of wave pumps. Simplified calculation shows that there is significant energy in question. Simultaneous drawing energy from sea waves, gives the possibility to collect energy from larger to smaller space, for example space of turbine with generator of electric energy.
Wave electric power stations, if near the coast, could pump the water and form water accumulation on the land. Potential energy of these accumulations could be used in intervals when there are no waves on the sea.
If wave electric power stations are on the ocean, far away from the coast, they could produce hydrogen. Hydrogen will be transported to the land and used as power fuel. Described wave electric power station satisfies principal of physics, but it does not mean that it is technically feasible due to moods of seas and oceans.
Cogeneration in District Heating Systems.
Authors: Carlos J. Renedo  , Jaime Peredo  , Alfredo Ortiz  , Delfín Silió
Published: July 2017

The District Heating systems (DH) are distribution systems of thermal energy, normally in the way of hot water that is supplied to great areas of population, so the users of these systems use them in the heating of their buildings and in the preparation of the hot tap water that is consumed in the buildings. The kinds of power stations that supply the thermal energy to the DH systems are as wide and varied as could be imagined: big boilers rooms, geothermal stations, solar stations,..., but mainly and due to the high energetic efficiency, the power stations which have been widely spread in the last years are Combined Heat and Power plants (CHP). In this article, it is presented a brief description of the DH systems in the first place and then, it is shown the main advantages that the centralized thermal production has, compared with the individual systems, and the kinds of CHP Plants more extensively used in the DH systems are described. Furthermore, this article focus on the different aspects that contribute to optimize the electric and thermal production in the CHP plants, as the operation way, thermal storage or the requirements that the DH systems have to achieve.
Neutral Currents in Large Public Lighting Networks
Authors: M. Chindris  , A. Sudria  , A. Cziker  , S. Stefanescu
Published: July 2017

The modern large public lighting networks are characterized by two major aspects that rise problems from both power quality and neutral current point of view in low voltage wye-connected three-phase electrical systems: (i) the supply system is unbalanced loaded; (ii) the presence of discharge sources. It is important to underline that nowadays,these aspects are not taken into account in the proper sizing of neutral conductors. The paper presents a simplified but enough accurate methodology to estimate the RMS value of neutral currents in lighting networks. The theoretical relationships are illustrated for a three-phase public lighting network that contains high pressure sodium lamps.
Multi-Agent Based Operation and Control of Isolated Power System with Dispersed Power Sources Including New Energy Storage Device.
Authors: T. Hiyama  , T. Nagata  , T. Funabashi
Published: July 2017

This paper presents a multi-agent based operation and control of isolated power systems with dispersed power sources such as photo-voltaic units, wind generation units, diesel generation units, and new energy storage devices such as the Energy Capacitor System (ECS). An advanced automatic generation control (AGC) scheme has been proposed through the coordination between the diesel unit and the ECS with small capacity. All the required information for the proposed multiagent based AGC is distributed among intelligent agents through the computer network. All the AGC function is achieved by using the proposed multi-agent based control system. To demonstrate the efficiency of the proposed multiagent based scheme, analog simulator tests have been performed. Simulations results indicate that the AGC performance has been highly improved by the proposed multiagent based AGC scheme even in the existence of the communication delay time through computer networks.
Diagnostic Methodology for the Energy Efficiency Estimation in Small Metal Casting Industries.
Authors: Sonia Gómez Moreno  , Y. Ulianov López  , C.E. Roncancio Uribe
Published: July 2017

This study will develop a methodology to measure and find the energy efficiency in arc furnaces, crucible furnaces and cupola furnaces. Those are the only ones used in the small metal casting industries in Cali.
The methodology initiates with the elaboration of a survey and contacting a sample OF local companies, then, continues with technical visits, measurements, analysis and results and finally, we obtain conclusions and give some specific recommendations to the companies
As a result, the first documented characterization were done, where is shown: size of the industry, energetic resource used, level of technification (modernization), fused metal, smelting method and kind of furnace, it is also presented the validation methodology and the identification of critical points where they can obtain big energy savings.
Cogeneration in a Hospital: A Case Study.
Authors: C. J. Renedo  , A. Ortiz  , D. Silió  , M. Mañana  , S. Pérez  , J. Carcedo
Published: July 2017

In this paper the authors analyze different alternatives to provide energy utilities to a hospital center with cogeneration systems with diesel engines and gas turbines. The study considers several power sizes and control strategies, so it shows the influence of these parameters, showing that in this case the options with diesel engines are more efficient than the equivalent ones with gas turbines.
Increasing the Permissive Opening Time of Circuit Breakers by Using UPFC
Authors: E.Gholipour  , H.Masaeli  , S. Saadate
Published: July 2017

The aim of this paper is to analyze the effect of an Unified Power Flow Controller (UPFC) in order to increase the permissive opening time of circuit breakers, keeping transient stability of power systems. Consequently the cost of these devices which are the essential factors in the cost of power systems, will be decreased.
The results of simulation performed by ATP-EMTP simulation package confirm the validity of theory on which the proposed control algorithm is based.
Load Following Function of Fuel Cell Plant in Distributed Environment
Authors: F. Gonzalez-Longatt  , A. Hernandez  , F. Guillen  , C. Fortoul
Published: July 2017

This  paper  presents  a  simplified  slow  dynamic  model  for  a  solid  oxide  fuel  cell.  The  stand  alone  performance  is  analyzed  and  evaluated.  A  simple  distribution  feeder  is  penetrated  by  two  fuel  cell  plants,  and  this  is  used  as  an  example   to   evaluate   the   load   following   performance.   The   simulation  indicates  a  restricted  capacity  of  locally  supply  step  load changes of the fuel cells.
Contactless Excitation System for Synchronous Generators.
Authors: Do-Hyun Kang  , Dae-Hyun Koo  , Ion Vadan  , Paul Curiac
Published: July 2017

The paper proposes a new application of contact-less  power  supply  technology  to  transfer  electric  power  torotating  rotors  of  synchronous  electric  generators  (excitationsystem,  usually  placed  in  rotor).  The  design  and  operationsimulation  of  a  magnetic  collector,  the  main  part  of  a  contact-less  power  supply  of  a  synchronous  machine  excitation  systemis   presented.   This   new   excitation   system,   will   keep   theadvantages  of  rapidity  offered  by  static  excitation  combinedwith  slip  ring  collector  and  the  easy  maintenance  offered  bybrush-less    excitation    system,    avoiding    the    maintenanceproblems  of  the  first  system  and  the  high  time  constant  ofexciter  coil  of  the  later.  An  application  for  a  synchronousgenerator of 500 kW is also presented.
A New Tool for the Optimal Design of Electrical Cables in Wind Farms
Authors: A.A. Bayod Rújula  , R.Martínez
Published: July 2017

In this paper, a new tool is proposed to design electric installations in wind farms. The structure of the wind farm is considered radial, as in most cases in wind farms, and the ratings of the cables are calculated, taking into account the technical constraints like electrical and thermal, and the economical aspects as cost of cable and energy savings for reduction of electrical losses. The program has been applied to solve the best rating of the cables in different wind farms and wind conditions, and the results are depictured.
Power Peak Sources for Isolated Network.
Authors: V. Bršlica
Published: July 2017

In the little area networks with one generator, any greater  power  step  in  load  causes  energy  quality  problem,  namely  if  in  GEN-SET  (Generating  sets)  the  modern  VSCF  technology  (variable  speed  -  constant  frequency)  is  used  to  reach  the  fuel  consumption  saving.  The  voltage  stability  is  improved  there,  thanks  the  frequency  converter  output,  but  another  problem  appears  -  engine  cannot  accelerate  from  low  speed  at  higher  power  step-up  load.  Possible  solution  of  peak-power  delivery  into  VSCF  system  (from  accumulator,  inter-circuit capacitors or ultra-capacitors) is main task of this paper.
A Study for Optimizing a Stand-Alone Hybrid Photovoltaic-Diesel System to Feed Summer Load.
Authors: G. Delvecchio  , M. Guerra  , C. Lofrumento  , F. Neri
Published: July 2017

An exhaustive study has been carried out at the experimental centre ENEA of Monte Aquilone (Italy).
This paper arises from the need to feed the users who live in a remote place (e.g. in developing countries where the electrical system network isn’t very large).
In particular, hybrid photovoltaic systems are considered since, as is well-known, they are very useful for feeding isolated loads thanks to the technological level reached and, above all, to the encouraging market forecast.
Two solutions have been examined and compared.
Joint Use of Circuit Models and Complexor Diagrams in Generator Design.
Authors: Ö. Göl  , B. Sobhi-Najafabadi
Published: July 2017

Impedance models have been routinely used in generator design. Despite their many limitations, they are indispensable for rapid performance evaluation, which makes them also suitable for use in conjunction with design optimisation algorithms.
This paper discusses the combined use of impedance models and complexor diagrams in a.c. generator design. The approach is demonstrated by applying it to the design of a permanent magnet synchronous generator with surface mounted magnets on the rotor.
Effect of Neglecting Stator Transients in Squirrel Cage Wind Generator Model.
Authors: S. Martín  , M.P. Comech  , S.Borroy  , M. García-Gracia
Published: July 2017

The study of the impact of the wind generation in the electrical grid is acquiring special importance in the last years. For these studies it is necessary to analyse its influence in the dynamics of the electrical systems of power. Therefore, it is necessary to obtain suitable dynamic models for each study.
In this paper two models of wind turbine generating systems are presented: a 5th order and a 3rd order model. The behaviour of both detailed models are described and compared. Both models match up with the squirrel cage technology.