bluuebunny/crossref_metadata_2025 huggingface dataset:
Pertencer ao passado
Authors: Sanches Neto Miguel
Published: February 2018

Em um tom de depoimento, este artigo situa o romance histórico  Um amor anarquista, que o autor publicou em 2005, no conjunto de sua produção literária. Também analisa as opções de estrutura e de linguagem usadas neste romance que quer apresentar a  experiência da implantação do anarquismo no Brasil com a criação da Colônia Cecília, no Paraná. Fecha o artigo uma reflexão que modifica a perspectiva sobre este gênero: todo romance histórico pertence muito mais ao momento em que foi escrito do que ao momento em que transcorrem os fatos, pois o que se entende por passado é uma construção do agora.
A faca na toalha ou poesia e cotidiano
Authors: Moreira Fernando Fiúza
Published: February 2018

Mesmo sendo levado pouco em conta pela crítica literária, quando esta aborda as relações entre literatura e cotidiano, o gênero lírico praticado no Brasil, do século XVII ao século XX,foi capaz de dar a ver certos aspectos do dia a dia e remeter o leitor à realidade da época em que o poema foi escrito, não com o intuito documental, mas com o de fornecer referências que facilitem sua compreensão.
ficha catalográfica PH
Authors: Gomes Luiz Fernando
Published: February 2018

ficha
folha de rosto
Authors: Gomes Luiz Fernando
Published: February 2018

folha de rosto
apresentação
Authors: Gomes Luiz Fernando
Published: February 2018

apresentação
Inês de Castro em Invenção
Authors: Santos Maria Manuela
Published: February 2018

Entre as inúmeras vozes que entretecem Invenção de Orfeu, Jorge de Lima convoca também largamente a de Camões. A Inês de Castro, por exemplo, para além de referências dispersas, dedica todo o XIX poema do Canto II bem como todo o Canto XIX da longa epopeia. Imprevisíveis, as palavras, alinhadas segundo nexos indecifráveis, sublinham a singularidade do autor que apresentaum novo olhar sobre o tema, reinventando uma Inês que nada tem a ver com a que Os Lusíadas configura. Não a vemos, assim, no texto jorgeano, penitente, numa última súplica, instigando emoções, mas serena, sem rancor nem vontade de retaliação.Em Invenção de Orfeu, Inês aceita pacificamente o vazio da inexistência e reinventa-se num outro lugar, fora do espaço e do tempo, onde permanece para sempre como uma sedutora de poetas.
Blokzinciri Teknolojisi ve Yakın Gelecekteki Uygulama Alanları
Authors: KIRBAŞ İsmail
Published: February 2018

Bu çalışmada günümüzde giderek değerlenen popüler
halen sanal para uygulamalarının temelini oluşturan blokzinciri teknolojisi ele
alınmıştır. Blokzinciri teknolojisi güvenilir bir merkez kullanımı
zorunluluğunu gerektirmeyen dağıtık bir kayıt yönetim sistemi olarak
tanımlanabilir. Çalışmamızda geleneksel alışveriş yöntemi ile blokzinciri
yapısı arasındaki temel farklılıklar ve blokzinciri kavramını meydana getiren
teknolojiler incelenmiştir. Ardından blokzinciri yapısını oluşturan blokların
üretilmesi ve transfer işlemlerinin nasıl gerçekleştirildiği açıklanmıştır.
Çalışmanın son bölümü ise yakın gelecekte kullanılması planlanan uygulama
alanları hakkında bilgiler ve yazılım çözümlerine ayrılmıştır.
TMS – 20 Devlet Teşviklerinin Muhasebeleştirilme Ve Finansal Raporlama Süreci
Authors: KARASİOĞLU FEHMİ , KINALI FIRAT
Published: February 2018

Devlet teşvikleri ve yardımlarının temel amacı ülke içinde yetersiz olan
kaynakların ülke ekonomisinin menfaati gözetilerek kullanılmasını sağlamaktır.
Devlet teşvikleri ve yardımlarının ülke içerisinde ticari faaliyette bulunan
her işletmeye ve sürekli olarak verilmesi söz konusu değildir, bu nedenle teşvik
ve yardımlar devlet tarafından belirlenen sektörlere belirlenen
dönemlerde verilmektedir. Bu makalede amaç, 
devlet teşviklerinin TMS-20 kapsamında ele alınarak muhasebeleştirme
sürecinde izlenilecek yollar ve bunların finansal raporlarda nasıl yer alacağına
ilişkin örneklendirmelerde ve açıklamalarda bulunmaktır.
STUDI GELOMBANG ULF: KORELASI PULSA MAGNET Pc3 DENGAN KECEPATAN ANGIN SURYA DAN MEDAN MAGNET ANTARPLANET
Authors: Pranoto Setyanto Cahyo , Srigutomo Wahyu
Published: February 2018

Energy for the Earth’s magnetospheric processes is provided by solar wind. Pc3 magnetic pulsation is one of geomagnetic ULF wave. Pc3 magnetic pulsation has been studied to understand the dynamic of magnetosphere. Geomagnetic pulsations are quasi-sinusoide variations in the Earth’s magnetic field in the period range of 10-45 seconds. The magnitude of these pulsations ranges from fraction of a nT (nano Tesla) to several nT. These pulsations can be observed in a number of ways such as  applied of ground based magnetometer. We used the magnetometer data of Manado, Parepare, and Kupang stations to studied  the effect of the solar wind and interplanetary magnetic field  on these pulsations. To extract Pc3 magnetic pulsations we applied second order of Butterworth filter and using Hamming windowing. The result showed that Pc3 magnetic pulsation have correlation with increasing solar wind velocity and interplanetary magnetic field-IMF, it is mean that solar wind controls Pc3 magnetic pulsations occurrence. AbstrakAngin surya merupakan sumber energi bagi proses-proses fisis yang terjadi di magnetosfer Bumi. Untuk dapat memahami dinamika di magnetosfer Bumi dapat di tinjau dari gelombang ULF salah satunya pulsa magnet Pc3. Pulsa magnet Pc3 merupakan variasi quasi-sinusoide pada medan magnet Bumi dalam rentang periode 10 – 45 detik. Pulsa magnet Pc3 umumnya memiliki amplitudo rendah dengan rentang nT (nano Tesla). Terdapat beberapa cara yang dapat dilakukan untuk mengamati pulsa magnet Pc3 diantaranya dengan menggunakan magnetometer landas Bumi. Dalam makalah ini kami menggunakan data pengamatan magnetometer stasiun Kupang, Manado, dan Parepare untuk mempelajari hubungan pulsa magnet Pc3 terkait dengan angin surya dan medan magnet antarplanet. Pulsa magnet Pc3 diekstrak dari data variasi medan magnet dengan menggunakan Butterworth Filter dan Hamming windowing. Hasil yang diperoleh menunjukkan bahwa pulsa magnet Pc3 memiliki korelasi dengan peningkatan kecepatan angin surya dan medan magnet antarplanet. Hal ini mengindikasikan bahwa angin surya merupakan salah satu sumber yang mengontrol perubahan yang terjadi pada pulsa magnet Pc3.
MODEL BADAI IONOSFER INDONESIA TERKAIT BADAI GEOMAGNET (INDONESIA IONOSPHERIC STORM MODEL RELATED TO GEOMAGNETIC STORM)
Authors: Santoso Anwar , Juangsih Mira , Ekawati Sri , Rusnadi Iyus Edi , Winarko Anton , Filawati Siska , Nurmali Dadang
Published: February 2018

Knowledge about the ionospheric response to the geomagnetic storms is needed to support SWIFtS activity in Space Science Center-LAPAN. However, it is difficult to predict its behavior. As an approach, it needs a model of the ionospheric response to geomagnetic storms. In this paper, the modeling of the Indonesia ionospheric storms to the geomagnetic storm was done by modifying the global empirical models developed by Araujo-Pradere. By using ap index data, Dst index, and foF2 ionosphere from BPAA Sumedang of 2005-2015, it was obtained the Indonesia ionospheric storms model related to the geomagnetic storm. The analysis result showed that the Sumedang ionospheric storms model had a deviation or error < 40% of the data. Therefore it can be concluded that this models can be used to support the SWIFtS activity in Space Science Center-LAPAN for future space weather conditions.  AbstrakPengetahuan tentang respon ionosfer terhadap badai geomagnet sangat diperlukan untuk mendukung kegiatan SWIFtS di Pusat Sains Antariksa-LAPAN. Namun, sulit diprediksi perilakunya. Sebagai pendekatan, diperlukan sebuah model respon ionosfer terhadap badai geomagnet. Dalam makalah ini, dilakukan pemodelan badai ionosfer Indonesia terkait badai geomagnet dengan memodifikasi model empiris global yang telah dikembangkan oleh Araujo-Pradere. Dengan menggunakan data indeks ap, indeks Dst dan foF2 ionosfer BPAA Sumedang tahun 2005-2015 diperoleh model badai ionosfer regional Indonesia terhadap badai geomagnet. Dari analisis disimpulkan bahwa model badai ionosfer Sumedang tersebut memiliki simpangan atau kesalahan < 40% terhadap data. Hal ini menunjukkan bahwa model badai ionosfer Sumedang tersebut dapat dipergunakan untuk mendukung kegiatan SWIFtS di Pusat Sains Antariksa-LAPAN sebagai bahan pertimbangan dalam memprediksi kondisi cuaca antariksa akan datang.
Anglicism in Indonesian
Authors: Azizah Nurul
Published: February 2018

This article discusses a language phenomenon currently occurring in Indonesia which is related to borrowing English words with the addition of a prefix ng-/nge in the Indonesian. The purpose of this article is to show how some English words are borrowed in Indonesian and what changes occur within this borrowing process which will be seen on two linguistic levels (phonological and semantic). The data were collected through an observation either in writing forms found in social media or oral form used in daily conversations. The interim results show that phonologically, in general the loan words follow the Indonesian phonological rules with little divergence in certain cases. From the semantic analysis it was found that these Anglicism words can be divided into three categories based on their meanings: restriction, expansion and static.
Foresighted outcome effect: A micro-foundation of agents' risk aversion in principal-agent relations
Authors: Livnat-Lerer Michal , Sulitzeau-Kenan Raanan , Kogut Tehila
Published: February 2018

Agents' risk aversion is a long-standing source of concern in principal-agent theory and in the practice of organizations. While standard principal-agent theory assumes that principals adequately infer conclusions from noisy outcomes, behavioral research suggests that their inferences are affected by outcome bias. We take a further theoretical step, and propose that when an agent knows that the principal's evaluation of the agent's decision will be based on outcome knowledge, the agent expects the principal to be overly affected by the outcome, rather than by the merit of the choice. As a result, the agent seeks to minimize the likelihood of an adverse outcome, leading to risk aversion. The results of three laboratory experiments support this hypothesis, suggesting that under outcome-knowledge-based principal-agent relationships, agents anticipate the effect of outcome bias on principals, and adjust their ex-ante behavior by opting for less risky alternatives, a phenomenon we call foresighted outcome effect.
Precise performance: Do citizens rely on numerical precision as a cue of confidence?
Authors: Olsen Asmus Leth
Published: February 2018

Recent research suggests that precise numbers signal confidence and are more potent anchors. This idea runs counter to the emphasis on simplicity in the presentation of performance numbers found in performance management and measurement research. Regardless, political-administrative systems are dominated by numerical information when it comes to evaluating performance or setting future performance goals. This article presents a set of experiments that test how well the precision effect translates in a political-administrative setting (n=1,505). The findings provide no convincing evidence of a precision effect. Citizens' evaluation of performance numbers seem to be largely unaffected by the roundness or precision of their numerical value. This is the case even if the numerical information is presented without any explicit political cues or are framed as non-manipulative expert judgments.
Putting social rewards and identity salience to the test: Evidence from a field experiment with teachers in Philadelphia
Authors: Bhanot Syon P. , Kraft-Todd Gordon , Rand David , Yoeli Erez
Published: February 2018

We partnered with the School District of Philadelphia (SDP) to run a randomized experiment testing interventions to increase teacher participation in an annual feedback survey, an uncompensated task that requires a teacher's time but helps the educational system overall. Our experiment varied the nature of the incentive scheme used, and the associated messaging. In the experiment, all 8,062 active teachers in the SDP were randomly assigned to receive one of four emails using a 2x2 experimental design; specifically, teachers received a lottery-based financial incentive to complete the survey that was either "personal" (a chance to win one of fifteen $100 gift cards for themselves) or "social" (a chance to win one of fifteen $100 gift cards for supplies for their students), and also received email messaging that either did or did not make salient their identity as an educator. Despite abundant statistical power, we find no discernible differences across our conditions on survey completion rates. One implication of these null results is that from a public administration perspective, social rewards may be preferable since funds used for this purpose by school districts go directly to students (through increased expenditure on student supplies), and do not seem less efficacious than personal financial incentives for teachers.
Enhacement of Quality of Learning through Material Presentation based on Multimedia in Barrang Lompo Island (Peningkatan Kualitas Pembelajaran melalui Penyajian Materi Berbasis Multimedia di Pulau Barrang Lompo)
Authors: Intan Indo
Published: February 2018

One of the main factors the low quality of human resources in education is learning depends on conventional methods which result in low quality of learning. This study aims to improve softskill and hardskill for teachers to enable them to manage quality learning based multimedia to produce students whom have basic competencies. The research method through four phases: assessment, training, learning, and evaluation. Data obtained through the assessment of the student to teachers, the assessment media experts to the teachers, and the assessment of student to teacher results by taking a sample of 7 teachers and 10 students. At Alfa Testing obtained an increase of indicators on aspects of the learning content, learning techniques, and learning outcomes including very good category. Gain testing showed that the presentation of learning material based multimedia including high category. Hypothesis testing showed that the presentation of material based on multimedia in all three aspects can improve the quality of learning.Salah satu faktor utama rendahnya kualitas sumber daya manusia bidang pendidikan adalah pembelajaran masih menggunakan metode konvensional yang berakibat pada rendahnya kualitas pembelajaran. Kajian ini bertujuan untuk menambah pengetahuan dan keterampilan bagi guru agar mereka mampu mengelola pembelajaran yang berkualitas berbasis multimedia untuk menghasilkan luaran siswa yang memiliki kompetensi dasar. Metode pelaksanaan kegiatan ini melalui empat tahapan: penjajakan, pelatihan, pembelajaran, dan evaluasi. Data diperoleh melalui hasil penilaian guru terhadap siswa, hasil penilaian tim ahli terhadap guru, dan hasil penilaian siswa terhadap guru dengan mengambil sampel 7 orang guru dan 10 orang siswa. Pada Alfa Testing diperoleh peningkatan indikator capaian pada aspek konten, teknik, dan luaran pembelajaran dengan kategori Sangat Baik. Gain Testing menunjukkan bahwa penyajian pembelajaran berbasis multimedia termasuk kategori Tinggi. Hypothesis Testing menunjukkan bahwa penyajian materi berbasis multimedia pada ketiga aspek dapat meningkatkan kualitas pembelajaran.
Development of Travel Attractions through the Design of Google SketchUp Based Coastal Tourist Map (Pengembangan Daya Tarik Wisata melalui Perancangan Peta Wisata Pantai Berbasis Google SketchUp)
Authors: Said Farid , Wahidiyat Ahmad , Andayani Dyah Darma , Harifuddin Harifuddin , Salam Rudi
Published: February 2018

Cartography is a science on making a map or globe. As of now the field of cartography constitute visualization in 2-dimensional form (2D). In order to fix the quality of the cartography, a map similar to thereal situation in three-dimensional visualization (3D) can be created. The research aims to design a beach tourism created by Google SketchUp application. Designing of 3D map is in accordance with the rules of software engineering that starts from planning, modeling and construction. Google SketchUp is an excellent graphics software in the manufacture of physical design such as building design, home design, etc. In addition to ease of building design, the excellence of Google SketchUp also makes it easy to build a 3D design that gives more interesting impression compared to 2D design. The instrument of expert validation performed by 3 experts validator who is a lecturer State University of Makassar. Based on the results from validator clear that the system is proper to use, thus agree with the decent category used as tourism information material which is more interesting attractions. This is evidenced by the utilization of android based applications.Kartografi merupakan suatu ilmu dalam pembuatan peta atau globe. Selama ini bidang ilmu kartografi merupakan visualisasi dalam bentuk dua dimensi (2D). Untuk memperbaiki kualitas kartografi tersebut, maka dapat dibuat peta dalam bentuk visualisasi yang menyerupai dunia nyata yakni peta dalam bentuk tiga dimensi (3D). Penelitian ini bertujuan untuk merancang peta wisata pantai dengan menggunakan aplikasi Google SketchUp. Perancangan desain peta 3D dilakukan dengan kaidah rekayasa perangkat lunak (software engineering) yang dimulai dari proses perencanaan (planning), modeling (perancangan), dan konstruksi (construction). Google SketchUp merupakan software grafis yang sangat andal dalam membuat suatu desain fisik seperti gedung, rumah, dan lain-lain. Selain mempermudah dalam membangun desain, keunggulan dari Google SketchUp juga mempermudah membangun rancangan 3D yang berguna untuk memberikan kesan yang lebih menarik bila dibandingkana aplikasi yang bersifat abstrak atau 2D. Instrumen validasi ahli dilakukan dengan tiga validator yang ahli dibidangnya. Berdasarkan hasil telaah validator, aplikasi ini dinyatakan layak sehingga memenuhi kategori layak digunakan sebagai bahan informasi objek wisata yang lebih menarik. Hal ini dibuktikan dengan pemanfaatan aplikasi berbasis android.
Les interventions informelles de désistement assisté : une étude de la portée
Authors: F.-Dufour Isabelle , Villeneuve Marie-Pierre , Perron Caroline
Published: February 2018

Despite the growing number of studies on assisted desistance, none has been made yet to identify the conclusive aspects of this process. This scoping review shows that informal interventions in assisted desistance help develop new ways to perceive oneself and one's social bonds (or to create new ones) and contribute to the emergence of new identities. We do not know, however, if they contribute to the adoption of a new way of living. Research avenues are suggested, with a view to outlining the long-term effects of informal intervention programs offered to violators in the socio-penal system.
Impacts of Crime Attractors and Generators on Criminality in Montreal
Authors: Demeau Elodie , Parent Geneviève
Published: February 2018

Urban institutions and facilities modulate criminal opportunities by influencing the number and type of people using them. Based on this finding, the present study attempts to assess the effect of several types of facilities, generally identified in the literature as attractors and generators of crime, on assault, theft, robbery, and motor vehicle theft in Montreal. To this end, the number of crimes and different facilities, as well as several socio-demographic indicators, were measured for the 3,195 dissemination areas. Except for laundromats and pawnshops, all the facilities assessed have a significant effect on one or more types of crime. The results obtained, which differ from the results for other North American cities, reject the generalization of such studies in other cities. While these differences could be attributed to dissimilarities at the urban or sociocultural level, it is also plausible that the methodological choices made can be the source of these differences. Limitations and future directions are discussed.
Iola’s War on Alcohol, Lynching, and the Rise of the Carceral State
Authors: Stewart Carole Lynn
Published: February 2018

This article probes the discourses of the Women’s Christian Temperance Union (WCTU) in the war on alcohol, prison reform, and the twin punishments of lynching and incarceration that help recontextualize Frances Harper’s 1893 novel Iola Leroy. The argument between Frances Willard and Ida B. Wells frames the illusory fear of black men raping white women and the threat of miscegenation. Harper’s novelistic response to this debate is to create multiple discourses for diverse audiences: white slavery, miscegenation, and the rise of a carceral state and its practice of convict leasing and the chain-gang. The article shows that the debates over women’s issues, domesticity, gender normativity, and prison reform within the WCTU disrupt the discourse of the tragic mulatta that has often been assumed primary and has softened the narrative critique in Iola Leroy.
Optimaler Einsatz von Mensch-Maschine-Kollaboration
Authors: Jodlbauer Herbert , Straßer Sonja , Wolfartsberger Josef
Published: February 2018

Kurzfassung

Die Mensch-Maschine Kollaboration steht am Beginn der industriellen Verbreitung. Abhängig von der Komplexität der Aufgabe, den erforderlichen Investitionen, variablen Lohnkosten, der geforderten Ausbringungsmenge und den Kosten für Produktwechsel aufgrund der Variantenvielfalt lassen sich die optimalen Einsatzbereiche von starrer Automation, Automation durch klassische Industrieroboter, Mensch-Maschine-Kollaboration und dem manuellen Arbeitsplatz ableiten.
Photo-Degradation of Polypropylene-Ascorbic Acid TiO2 Composite Films
Authors: Soitong T.
Published: February 2018

The surface modification of titanium dioxide (TiO2), which can be easily attained by a simple addition of ascorbic acid (AA) to aqueous TiO2 suspensions, affects the photodegradation. Surface modification results in the formation of a colored surface complex that causes red shift in the absorption threshold of TiO2. Photodegradable polypropylene (PP) composite films were prepared by embedding AA modified nano TiO2 into the PP matrix (PP/(AA/TiO2)). The photocatalytic degradation behavior of PP/(AA/TiO2) composite film under UV light irradiation as investigated and compared with those of the PP/TiO2 and neat PP films, with the aid of UV-Vis spectroscopy, Fourier Transform Infrared spectroscopy, weight loss monitoring, tensile test and scanning electron microscopy. The degradation rate of the PP/(AA/TiO2) composite films is three times higher than that of PP/TiO2 film and six times higher than that of neat PP film. In addition, the FTIR spectra show that the intensity of the peak of carbonyl group for neat PP is much lower than that of the composite film.
Melt Flow and Flexural Properties of Polypropylene Composites Reinforced with Graphene Nano-Platelets
Authors: Liang J. Z. , Du Q.
Published: February 2018

The effects of graphene nano-platelets (GNPs) content on melt flow behavior and flexural properties of reinforced polypropylene (PP) composites were investigated. The results showed that both the flexural modulus and strength at room temperature increased when GNPs weight fraction was lower than 0.4 wt.%, and then decreased with increasing GNPs weight fraction. During the melt flow of the PP composites in capillary extrusion within temperatures ranging from 180 to 230 °C and in apparent shear rates varying from 100 to 4 000 s−1, the melt shear flow followed the power law relationship, and the dependence of the melt shear viscosity on temperature obeyed the Arrhenius equation. The correlation between the melt shear viscosity and GNPs weight fraction was approximately linear under the given test conditions.
Simulation of Micropelletization Mechanisms in Polymer Melt – Air Systems
Authors: Schäfer C. , Aquite W. M. , Osswald T. A.
Published: February 2018

This paper presents a series of simulation approaches to model the mechanisms associated with the flow and breakup of a polymer melt in a new micropelletization technique. This has proven to be an alternative way of producing micropellets and powders with physical properties demanded in polymer processes such as sintering, rotomolding, injection molding, and extrusion. The new technique involves extruding a polymer melt strand through a capillary and stretching it with a stream of hot air, causing the formation of Rayleigh disturbances that lead to breakup of the strand into small particles. Experimental work has demonstrated that the viscoelastic response of the extruded thread influences the breakup process, affecting the final shape and size distribution of the particles. This work presents simulation results for the melt flow behavior that reproduces what has been observed experimentally during the breakup stage. A free surface viscoelastic solver, implemented in the OpenFOAM computational fluid dynamics software, allows visualization of viscoelastic effects on the melt as it leaves the extrusion die and meets the stream of air. Modeling of the viscoelastic fluid flow in this process is intended to serve as a tool for process control and understanding of influential factors in the development of micropellets, for a range of materials and process conditions.
Minimization of Warpage for Injection Molded Parts by Inverse Thermal Mold Design
Authors: Hopmann Ch. , Nikoleizig P. , Dornebusch H. , Schneppe T.
Published: February 2018

For injection molding, a controlled heat removal is important to produce dimensional accurate parts efficiently. The following article introduces a new concept called inverse thermal mold design. Using this method, a proper cooling channel system for the injection mold can be produced to achieve minimal part warpage. Based on the postulate of a homogeneous material density distribution within the plastic part to achieve homogenous shrinkage, the method calculates the local cooling demand of the part to derive the cooling channel layout of the mold.
Influence of Titanium Dioxide Modified Expandable Graphite and Ammonium Polyphosphate on Combustion Behavior and Physicomechanical Properties of Rigid Polyurethane Foam
Authors: Pang X.-Y. , Chang W.-S. , Chang R. , Weng M.-Q.
Published: February 2018

In this research, the individual influence and synergistic behavior between titanium dioxide modified expendable graphite and ammonium polyphosphate on combustion behavior and physicomechanical properties of rigid polyurethane foam (RPUF) were investigated. Combustion behavior was evaluated by limiting oxygen index, and vertical-combustion tests. Thermal stability was studied via thermogravimetric/differential thermal gravimetric (TG/DTG) analysis. Results showed that the modified expendable graphite presented better thermal stability and flame retardancy for RPUF than the normal expandable graphite. Furthermore, the combination of the modified expendable graphite and ammonium polyphosphate with the mass ratio of 1 : 1 caused the RPUF to exhibit better flame retardancy, compression strength and high temperature thermal stability. Especially, the compression strength of this polymer composite sharply increased by 52.4 % over RPUF.
Preparation, Foaming and Characterization of Poly(l-lactic acid))/Poly(d-lactic acid)-Grafted Graphite Oxide Blends
Authors: Xu L. Q. , Zhao Y. Q.
Published: February 2018

Commercial poly(l-lactic acid) (PLLA) was blended with different contents of graphene oxide-graft-poly(d-lactic acid) (GO-g-PDLA), which was synthesized via ring-opening polymerization using modified GO as initiator. PLLA and PLLA/GO-g-PDLA blend foams were prepared in a batch process via varying-temperature mode using supercritical carbon dioxide as physical foaming agent. The results showed that the addition of GO-g-PDLA in PLLA leads to the formation of stereocomplex (sc)-crystallites. Increase in the GO-g-PDLA content enhances the IR absorption, diffraction peak and melting peak corresponding to the sc-crystallites. The addition of GO-g-PDLA to PLLA leads to the decrease of the cell diameter, increase of the cell density and to a little change in expansion ratio, which is attributed to the fact that the enhancement of PLLA crystallization restricts cell growth and GO-g-PDLA acts as nucleation point.
Multi Response Optimization of Setting Input Variables for Getting Better Product Quality in Machining of Magnesium AM60 by Grey Relation Analysis and ANOVA
Authors: Sivam S. P. Sundar Singh , Karuppaiah Sathiya Moorthy , Yedida Bhaskar Karthik , Atluri Jai Ram , Mathur Shubhang
Published: February 2018

This study presents the optimization of Machining parameters on AM60 Mg alloy manufactured by Gravity Die Casting and with responses supported orthogonal array with Grey relation analysis. Focuses on the optimization of Machining input parameters using the technique to get minimum surface roughness, Minimum Tool Wear, Cutting Time, Power Requirement, Torque and Maximum MRR. A number of Machining trails were conducted based on the L9 orthogonal array on CNC machine. The experiments were performed on AM60 alloy using cutting tool of an ISO 460.1-1140-034A0-XM GC3 of 12,16 and 25 mm diameter with cutting point 140 degrees, throughout the experimental work under different cutting conditions. Grey relation analysis & ANOVA were used to work out the fore most important parameters Cutting speed, feed rate, Depth of Cut and Tool Diameter which affects the Response. The expected response and measured response are fairly close. The given model could be used to select the level of Machining parameters.
Large Strain Viscoelastic Material Model for Deformation, Stress and Strain Analysis of O-rings
Authors: Szabó György , Váradii Károly
Published: February 2018

Primary aim of this paper is to investigate the mechanical behavior of an O-ring seal made of NBR rubber material using finite element method. Further aim is to identify the O-ring’s critical locations where it can fail under normal operating conditions. For these a large-strain viscoelastic material model was set up. The recommended strain range where the material model should be sufficient is 0-100 % for normal conditions, but when the effect of overload or the temperature is the question, the strain range should be 0-150 %. From designer point of view, a large-strain viscoelastic material model with a 5 parameter Mooney-Rivlin term is appropriate. To make sure the material model′s accurate response, uniaxial tension, pure shear and equibiaxial measurements are needed, completed with dynamic measurements with a DMTA machine. The results show two critical locations where the failure of the O-ring is expected. One is on the edge of the O-ring near the gap, when friction is present, the other one is under the edge near the gap.
Aprendiz de frescos. Noticia sobre la presencia de Gaspar Becerra en la Estufa de La Alhambra
Authors: Martínez Jiménez Nuria
Published: February 2018

En este artículo damos a conocer la noticia sobre la presencia de Gaspar Becerra en Granada constatando su acercamiento a la pintura mural italiana antes de su marcha a Italia.
Development and Validation of Automated Detection Tools for Vocalizations of Rare and Endangered Anurans
Authors: MacLaren Andrew R. , McCracken Shawn F. , Forstner Michael R.J.
Published: February 2018

For many rare or endangered anurans, monitoring is achieved via auditory cues alone. Human-performed audio surveys are inherently biased, and may fail to detect animals when they are present. Automated audio recognition tools offer an alternative mode of observer-free monitoring. Few commercially available platforms for developing these tools exist, and little research has investigated whether these tools are effective at detecting rare vocalization events. We generated a recognizer for detecting the vocalization of the endangered Houston toad Anaxyrus houstonensis using SongScope© bioacoustics software. We developed our recognizer using a large sample of training data that included only the highest quality of recorded audio (i.e., low noise, no interfering vocalizations) divided into small, manageable batches. To track recognizer performance, we generated an independent set of test data through randomly sampling a large population of audio known to possess Houston toad vocalizations. We analyzed training data and test data recursively, using a criterion of zero tolerance for false-negative detections. For each step, we incorporated a new batch of training data into the recognizer. Once we included all training data, we manually verified recognizer performance against one full month (March 2014) of audio taken from a known breeding locality. The recognizer successfully identified 100% of all training data and 97.2% of all test data. However, there is a trade-off between reducing false-negative and increasing false-positive detections, which limited the usefulness of some features of SongScope. Methods of automated detection represent a means by which we may test the efficacy of the manual monitoring techniques currently in use. The ability to search any collection of audio recordings for Houston toad vocalizations has the potential to challenge the paradigms presently placed on monitoring for this species of conservation concern.
Travestismos folks en México
Authors: Rivas Gloria Luz Godínez
Published: February 2018

El nacionalismo mexicano ha intentado fijar identidades arraigadas fuertemente en la música y los bailes populares transformándolos en estampas folclóricas basadas en la pareja heterosexual, hombres sobrios de fuertes movimientos al lado de mujeres ataviadas con trajes de colores, hermosas y sonrientes, como si fueran la imagen de la patria. Cada que aparezca la típica postal de los ballets folclóricos de México habría que recordar que detrás de esas danzas y esos cuerpos están las heridas abiertas de este país. En las siguientes páginas desmontamos el entramado nacionalista que conlleva el uso de metáforas biológicas como las de la raza y el género. Para cuestionar la puesta en escena de lo popular proponemos imágenes divergentes y travestismos folks, demostrando que el género es intencional y performativo o, con palabras de Butler, que todo género está travestido.
Manuel González Prada. Preguntas, respuestas y propuestas sobre la cuestión indígena durante un cuarto de siglo del Perú contemporáneo, 1871-1906
Authors: Margarucci Ivanna
Published: February 2018

En este artículo, nos proponemos abordar la concepción de Manuel González Prada sobre la cuestión indígena, analizando a través de la historia, la teoría y la literatura, las obras en las que se ha referido a ese tema durante su trayectoria intelectual.
La mémoire de l’Afrique centrale chez les esclaves du Rosaire à Minas Gerais, Brésil
Authors: Oliveira e Gabarra Larissa
Published: February 2018

Cet article est une étude d’histoire sociale portant sur la mémoire des congadeiros du Brésil et sur la culture matérielle d’un certain nombre de peuples de la République Démocratique du Congo (RDC). Il propose d’éclairer la condition de l’esclave dans le Minas Gerais (Brésil) au XIXème siècle au moyen d’un double exercice d’histoire orale. Le chercheur a ainsi d’abord réalisé des interviews avec des adeptes du Congado, une manifestation culturelle afro-catholique. Après ce travail de terrain qui a été accompagné de la lecture de la littérature sur ce thème, le chercheur s’est rendu au Musée Royal de l’Afrique Centrale pour y collecter des images représentant des objets et des danses ethnographiques de divers peuples de la RDC. Dans une deuxième phase de terrain, ces images ont été montrées aux congadeiros pour que ceux-ci réfléchissent avec le chercheur sur les relations entre ces danses et la culture matérielle du Congado. Ainsi, l’histoire des congadeiros à Minas Gerais reconstruit les liens entre l’histoire des populations de l’Afrique centrale, les esclaves au Brésil, le royaume du Kongo en Afrique et le royaume du Congo au Brésil.
Criteria for Fatigue Failure of Materials: Application in Fatigue Assessment of Structures
Authors: Petinov Sergei , Guchinsky Ruslan
Published: February 2018

Presently in rules for fatigue assessment of structures subjected to intensive alternating service loading the Stress-Life (S-N) criteria are recommended in versions of the Nominal stress approach, Hot-spot stress and Notch-stress approach based on using the stress range a representative of the current damage. The criteria and approaches provide assessment of fatigue properties of structures accompanied with a series of approximations and uncertainties. A physically and mechanically more correct procedures might be provided by the Strain-life and Inelastic strain energy criteria for fatigue failure and approaches, although specific with intrinsic sources of approximations. The nature of approximations in the approaches is briefly commented and feasible means of improvement the fatigue assessment procedures and applications are presented.
Effect of Carbon Nanotubes on Properties of Ceramics Based Composite Coatings
Authors: Goyal Khushdeep , Singh Hazoor , Bhatia Rakesh
Published: February 2018

In the present work, 2% and 6% carbon nanotubes (CNT) were reinforced in chromium oxide powder and were deposited on T22 steel using high velocity oxy-fuel spraying process. The effect of CNT reinforcement on hardness and porosity was investigated. The hardness was observed to be highest for coating reinforced with 6%CNT and hardness was found to increase with decrease in porosity. The coating microstructure and elements were characterised using field emission scanning electron microscopy (FE-SEM) with energy dispersive spectroscope (EDS), Elemental point analysis and X-ray mapping analysis. The constituents of the coating were identified using X-ray diffractometer. It was found that the CNT were uniformly distributed throughout Cr2O3matrix. The CNT were found to be chemically inert during the spraying process.
Behavior of Exit Keyhole Diameter during Switch off Period in Plasma Keyhole Arc Welding
Authors: Nguyen Van Anh , Shinichi Tashiro , Ngo Huu Manh , Murata Akihisa , Murata Tadasuke , Tanaka Manabu
Published: February 2018

The purpose of this investigation is to clarify the behavior of exit keyhole diameter during switch off (cutting arc) period in case of Plasma keyhole arc welding (PKAW). During switch off period, the keyhole and weld pool are visualized from backside via a high speed video camera (HSVC). The result showed that keyhole diameter on the backside is unstable. The keyhole size is much changed in X-axis. Firstly, it is increased and then it is decreased to a stationary value at t = 0.05 s after cutting arc. Meanwhile, the size in Y-axis is not changed approximately from t = 0.01 s after cutting arc. The results can be considered to control this process more efficiency.
Aluminium Nanoparticles Prepared by Ultrasonic Ablation Technique inside the Active Layer of Organic Solar Cell
Authors: Ismail Yasser A.M.
Published: February 2018

In the present work, chemical-free aluminium nanoparticles (Al NPs) have been incorporated inside active layer of organic solar cell (OSC) using a new ultrasonic ablation technique, by which the Al NPs have been physically prepared in 1,2-dichlorobenzene (DCB) as a solvent for preparing solar cell active layer. The concentration of Al NPs inside active layer can be increased by increasing the volume of DCB-Al NPs and, also, by increasing the ultrasonication time applied upon DCB-Al NPs mixture. The prepared Al NPs are incorporated inside the common P3HT:PCBM active layer without accumulation and with low distribution. Optical absorption of the P3HT:PCBM active layer is improved through plasmon resonance induced by Al NPs inside active layer. The fill factor (FF) is, also, improved by the presence of Al NPs which facilitate charge carrier transfer in the P3HT:PCBM solar cell. The FF can be reduced due to presence of Al bulk pieces inside active layer. However, these Al bulk pieces are dissociated under the effect of ultrasonic irradiation for longer time. Optical absorption as well as charge carrier transfer induced by Al NPs are the responsible to increase performance parameters of the P3HT:PCBM solar cell under increasing the concentration of Al NPs inside OSC. As a conclusion, the incorporation of Al NPs inside P3HT:PCBM solar cell induces a significant improvement of the FF by 35% and consequently, the PCE is improved with about 39%.
Synthesis Photocatalytic TiO2/ZnO Nanocomposite and Investigation through Anatase, Wurtzite and ZnTiO3 Phases Antibacterial Behaviors
Authors: Mohammadi Hanif , Ghorbani Mohammad
Published: February 2018

Titanium dioxide is prepared by sol gel method from titanium tetraisopropoxide (TTIP) as precursor and likewise zinc oxide is prepared by sol gel method from zinc acetate dehydrate (ZAD) as precursor. The composite sols are prepared in three different molar ratios 90TiO2:10ZnO, 70TiO2:30ZnO and 50TiO2:50ZnO. Thin film deposition is carried out by dip coating technique. Crystal structure, surface morphology and photocatalytic activity of the prepared nanocomposite thin films are investigated. The antibacterial activity of the prepared nanocomposite thin film against E-coli ATCC 25922 bacteria is examined by placing the thin film in standard aqueous E-coli medium under UV light for 1, 2, 3 and 4 hours and then counting the bacteria with Standard Plate Count Agar (SPC) technique. The prepared thin films have shown strong antibacterial activity in the presence of UV light and by increasing the ZnO molar ratio from 10 to 50, antibacterial activity of the thin films decreases because of decreases in the anatase phase of the TiO2. In the dark conditions by increasing the molar ratio of ZnO, the antibacterial activity of the thin films increases and this phenomenon is related to increasing the zinc ions in the thin films.
Fatigue and Corrosion Fatigue of the Roll Steels with Surface Nanostructure
Authors: Kyryliv Volodymyr , Chaikovs'kyi Borys , Maksymiv Olha , Mykytchak Borys
Published: February 2018

Fatigue and corrosion fatigue of 50KhN and 60Kh2M roll steels with surface nanocrystalline structure induced by mechanical-pulse treatment were studied. The increment of fatigue and corrosion fatigue of the steels with surface nanocrystalline structure were shown and revealed the factors which causes this increment.
Parvovirus B19-triggered acute hemolytic anemia and thrombocytopenia in a child with Evans syndrome
Authors: MANTADAKIS ELPIS
Published: February 2018

Background: Human parvovirus B19 (HPV-B19) is the etiologic agent of erythema infectiosum, of transient aplastic crises in individuals with underlying chronic hemolytic disorders, and of chronic pure red cell aplasia in immunocompromised individuals.Case report. We describe a 14-year-old girl with long-standing Evans syndrome, who presented with severe anemia, reticulocytopenia and thromocytopenia. A bone marrow aspirate revealed severe erythroid hypoplasia along with presence of giant pronormoblasts, while serological studies and real-time PCR of whole blood were positive for acute parvovirus B19 infection. The patient was initially managed with corticosteroids, but both cytopenias resolved only after administration of intravenous gamma globulin 0.8g/kg.Conclusion: Acute parvovirus B19 infection should be suspected in patients with immunologic diseases, who present with reticulocytopenic hemolytic anemia and thrombocytopenia. In this setting, intravenous gamma globulin is effective for both cytopenias.
Асимптотическое решение задачи Коши для уравнения первого порядка с малым параметром в банаховом пространстве. Регулярный случай
Authors: Zubova Svetlana Petrovna , Uskov Vladimir Igorevich
Published: February 2018

Статья посвящена исследованию решения задачи Коши для дифференциального
уравнения в банаховом пространстве с возмущением в правой части уравнения,
осуществляемом с помощью малого параметра. Коэффициентом при производной
от искомой функции является фредгольмовский оператор с нулевым индексом
и одномерным ядром. Рассматривается случай регулярной пары операторных
коэффициентов. Строится асимптотическое разложение решения задачи методом
Васильевой-Вишика-Люстерника. При вычислении компонентов регулярной
и погранслойной частей разложения решения используется метод каскадной
декомпозиции уравнений. Доказывается асимптотичность этого разложения.
Находятся условия регулярности вырождения. Исследуется поведение решения
при стремлении параметра к нулю.
Библиография: 13 названий.
Модель случайных продаж
Authors: Pospelov Igor Germogenovich
Published: February 2018

С помощью модели показано,
что даже небольшого изменения цен продавцом достаточно,
чтобы скоординировать действия независимых покупателей так,
что они будут выступать как единый экономический агент,
преследующий цель максимизации эффективной функции полезности.
Библиография: 12 названий.
The Pyrenees in the Modern Era Reinventions of a Landscape 1775-2012
Authors: Lyons Martyn
Published: February 2018

This original study examines different incarnations of the Pyrenees, beginning with the assumptions of 18th-century geologists, who treated the mountains like a laboratory, and romantic 19th-century tourists and habitués of the spa resorts, who went in search of the picturesque and the sublime. The book analyses the individual visions of the heroic Pyrenees which in turn fascinated 19th-century mountaineers and the racing cyclists of the early Tour de France. Martyn Lyons also investigates the role of the Pyrenees during the Second World War as an escape route from Nazi-occupied France, when for thousands of refugees these dangerous borderlands became ‘the mountains of liberty’, and considers the place of the Pyrenees in recent times right up to the present day.

Drawing on travel writing, press reports and scientific texts in several languages, The Pyrenees in the Modern Era explores both the French and Spanish sides of the Pyrenees to provide a nuanced historical understanding of the cultural construction of one of Europe’s most prominent border regions. This book will be of great interest to scholars and students of Europe’s cultural history in a transnational context.
Cytokines and integrins related to inflammation of joint and gut in patients with spondyloarthritis and inflammatory bowel disease
Authors: Kontny Ewa , Dmowska-Chalaba Joanna , Kwiatkowska Brygida , Maśliński Włodzimierz
Published: February 2018

Objectives: Inflammatory bowel disease (IBD) and spondyloarthritis (SpA) have some overlapping clinical features, i.e. gut and joint inflammation. Cytokines of interleukin 17(IL-17)/IL-23 axis play a pathogenic role in both diseases. Integrins (ITGs) regulate migration of immune cells to inflamed tissues (ITGβ7 into gut, ITGβ2 into gut and also to other tissues). In this study, we search for differences in the serum concentrations of these cytokines and integrins between patients suffering from SpA or IBD with and without overlapping symptoms.

Material and methods:  Patients with SpA (n = 30), IBD (n = 68), and healthy volunteers (n = 28) were included in the study. Fourteen SpA patients reported symptoms characteristic for IBD. Spondyloarthritis symptoms were diagnosed in 50% of IBD patients, while other patients of this group reported arthralgia only. Serum concentrations of IL-17, IL-22, IL-23, ITGβ2, and ITGβ7 were measured by specific enzyme-linked immunosorbent assay using commercially available sets. The Mann-Whitney and Spearman’s rank tests were used for intergroup comparison and correlation assessment, respectively.

Results: Comparison of patient groups showed significantly higher serum concentrations of IL-17, IL-22, and ITGβ7 in SpA, and up-regulated levels of IL-23 in IBD patients. Similar differences were observed between patient subgroups, both with and without overlapping symptoms. In SpA but not in IBD patients, serum concentrations of ITGβ7 inversely correlated (r = –0.552) with C-reactive protein.

Conclusions: Patients with SpA and IBD differ in the circulating concentrations of IL-17/IL-23 axis cytokines and ITGβ7, irrespectively of the presence or absence of overlapping symptoms. Therefore, we conclude that observed differences are attributed rather to underlying than concurrent disease.