bluuebunny/crossref_metadata_2025 huggingface dataset:
Multi-objective Optimization applied to Photovoltaic Street Lighting Systems
Authors: O. Rabaza  , Z.E. Palomares-Muñoz  , A.M. Peña-García  , D. Gómez-Lorente  , J. Arán-Carrión  , F. Aznar-Dols  , A. Espín-Estrella
Published: May 2017

This paper proposes a new method of optimization that minimizes energy consumption in street lighting with the aim of using minimal infrastructure in photovoltaic installations. In an attempt to reduce our energy dependency from the outside, the world of science not only is searching and developing new energy sources, but it is also implementing new methods of design of installations that consume less, while they maintain the highest standards of quality. In this work we continue with that idea, it provide an alternative method to achieve that lighting installations consume less and at the same time take advantage of the qualities of renewable energies. To do this, in this study two variables are chosen to optimize the installation of public lighting; energy consumption and global uniformity. The first is intended to minimize the number and cost of photovoltaic elements and the second to ensure the quality of the lighting. As a practical example, any city of the South of Spain was chosen, therefore the choice of solar photovoltaic is justified because there are large number of hours of sunshine per year.
Voltage Control and Power System Stability Enhancement using UPFC
Authors: Vireshkumar Mathad  , Basanagouda F. Ronad  , Suresh H. Jangamshetti
Published: May 2017

This paper presents application of UPFC in improving the voltage profile and enhancement of the power system stability. Five bus test system is considered for investigating the effect of UPFC. MATLAB Simulink models of test system and UPFC are developed. In Five bus test system UPFC is incorporated between the bus 1 and 4. Two case studies are taken up; where faults created at two different locations i.e. Bus 4 and 5. For both cases the faults are applied at 1 second and cleared at 1.5 second. Results reveal that, without UPFC, rotor angle oscillations increased in generator and lost synchronism. With UPFC system oscillations damped in 6 seconds and system remained stable. Voltage profile of all 5 buses and rotor angle variations at both generators are analyzed. Thus, it is observed that the stability of system can be improved and voltage profiles flatten significantly with incorporating UPFC.
Harmonic Emission of Large PV Installations Case Study of a 1 MW Solar Campus
Authors: Anantaram Varatharajan  , Stefan Schoettke  , Jan Meyer  , Andreas Abart
Published: May 2017

Extensive measurements were carried out at a 1 MW photovoltaic (PV) installation with focus on the analysis of harmonic emission both for classical harmonics below 2.5 kHz and higher frequency emission in the range of 2-150 kHz. The installation consists of multiple inverters with different rated power. Beside the measurement of total emission of all inverters, in one part of the measurement the inverters were switched off and on stepwise following a predefined schedule. This provides a comprehensive basis for a detailed characterisation of the interactions between the inverters in terms of harmonic emission. After a description of the measurement setup the paper discusses the total emission of the installation, the dependency of the emission on the supply voltage distortion and the potential of harmonic cancellation due to phase angle diversity between the different inverters. The results enable a better understanding of the harmonic emission behaviour of large PV installations. The paper is intended to be an contribution to the development and improvement of respective harmonic models.
Inverted hybrid solar cells based on UV-stabilizers with nanoparticles in P3HT:PCBM
Authors: J., Calle  , F. Jaramillo
Published: May 2017

We reported on the photovoltaic properties of inverted organic solar cells (OSCs) based UV stabilizers-nanoparticles with fullerene (C60). The substantial role of nanoparticles and stabilizers in the protection of the cells against permeation of oxygen and/or water molecules and into the organic thin films is confirmed. Incorporation of a nanoparticles and small molecules makes considerable progress in the lifetime of the OSCs.
Parameter Identification of Heffron-Phillips Model Considering AVR Using On Line Measurements Data
Authors: B. Zaker  , G. B. Gharehpetian  , N. Moaddabi
Published: May 2017

The Heffron-Phillips model of the synchronous generator is a fourth order linear model including a third order synchronous machine and a first order automatic voltage regulator (AVR) model. This model is used for small signal stability analysis and power system stabilizer (PSS) design. In some power grids, the synchronous generators and excitation system parameters are not available or valid because of derating, while these parameters are essential to analyze the power systems, design the controllers, and assess the security of the network. In this paper, a genetic algorithm-based method is proposed to identify the parameters of the synchronous generator and excitation system in the frame of Heffron-Phillips model using on-line measurements data. In the proposed method, the reference voltage of AVR is considered as the input signal, while the terminal voltage and output active power of the machine are considered as output signals. The output signals are provided by phasor measurement units (PMUs). The proposed method is applied to a single machine connected to an infinite bus, to show its effectiveness and accuracy.
Adaptive Threshold for Electrical Disturbances Segmentation
Authors: L. C. M. Andrade  , M. Oleskovicz  , R. A. S. Fernandes
Published: May 2017

The detection of the electrical signal discontinuities in the oscillographies recorded in substations and/or points of common coupling allows their segmentation, which is crucial for implementation of automated methods for detection, classification, location and storage by classes of disturbances in electric power systems. In this context, this study provides a way of determining an adaptive threshold that allows the segmentation of voltage or current signals based on Wavelets decomposition. The disturbances considered in this work were the short-duration voltage variations, impulsive and oscillatory transients, and harmonic distortions. The signals were synthetically generated. Moreover, white noise was added on the signals. Thus, a Symlet Wavelet was applied to the signals in order to denoise them. In the sequence, a Daubechies Wavelet was used to decompose the filtered signals. So, to determine the initial and final points of each segment, an adaptive threshold was established based on the energy and entropy of energy for the second level of decomposition. Thus, the number and position of each segment were determined according to the intersections of the detail curves and the thresholds found.
Telecommunications Infrastructure to Support Distributed Resources Connected to Electricity Distribution in a Smart Grid Scenario
Authors: Leonardo Henrique de Melo Leite  , Wallace do Couto Boaventura  , Luciano de Errico
Published: May 2017

The new concept of smart energy networks - Smart Grids – demands the use of communications solutions that meet critical operational requirements. These requirements are associated with supervision and control functions involved in all stages of electricity supply, especially in distribution systems. This paper discusses the telecommunications infrastructure applied to photovoltaic distributed resources connected to electricity distribution. The goal is to identify, in a Smart Grid environment, strategies to achieve an interoperable supervision system capable to manage photovoltaic plants, in order to cooperate with overall power system performance. The analysis will be based on voltage control scenario.
Calculation of phase angle diversity for time-varying harmonic currents from grid measurement
Authors: A.M. Blanco  , J. Meyer  , P. Schegner
Published: May 2017

Phase angle diversity of harmonic currents emitted by different equipment, like electronic power supplies, modern lamps with electronic ballast, chargers for electrical cars or photovoltaic inverters, results in cancellation effects which represent an efficient way of managing harmonic levels in LV grids. Different methods have been presented in the last decades to quantify and evaluate the summation of harmonic currents based on grid measurements. There is not a general consensus about which method or index should be preferred, especially if time-variation of harmonic currents is considered. The paper discusses the impact of measurement accuracy and aggregation parameters on the calculation of the two main diversity indices, namely diversity factor and summation exponent. In case of time varying harmonics an additional statistical post-processing is required which also depends on several parameters and calculation methods. Based on the results of the application of different methods to real grid measurement data, some guidance on suitability and limitations of the different methods are given.
Microgrid control system architecture for improving energy efficiency and demand response integration
Authors: Guillermo Escrivá-Escrivá  , E. C. W. de Jong  , Carlos Roldán-Blay
Published: May 2017

Smart-grids have several advantages over conventional electrical energy distribution systems. On the one hand, they enable smart measuring and control of both, consumption and energy production. On the other hand, they contribute to the integration of renewable energy sources, distributed energy resources and demand response. However, some aspects of smart-grids have not been solved, such as the control of all the components. In this study, some control equipments have been analyzed to establish the control system architecture. As a result of the tests shown in this paper, a suitable design of the control system of a micro-grid is proposed. The power meters, quality analyzers and programmable logic controller to be used in the micro-grid control system have been tested to ensure their suitability for this purpose.
Intelligent Management Experience on Efficient Electric Power System
Authors: A. Martín  , C. León  , F. Biscarri
Published: May 2017

Electric power system is one of the most critical and strategic infrastructures of industrial societies. Nowadays, it is necessary the modernization and automation of the electric power grid to increase energy efficiency, reduce emissions, and transit to renewable energy. Power utilities face the challenge of using information and communication networks more effectively to manage the demand, generation, transmission, and distribution of their commodity services. Communication network constitutes the core of the electric system automation applications, the design of a cost-effective, and reliable network architecture is crucial. To resolve this difficulty in this work we study the integration of advanced artificial intelligence technology into existing network management system. This work focuses on an intelligent framework and a language for formalizing knowledge management descriptions and combining them with existing OSI management model. We have normalized the knowledge management base necessary to manage the current resources in the telecommunication networks. Intelligent agents learn the normal behaviour of each measurement variable and combine the intelligent knowledge for the management of the network resources. We present an analysis of corporate network management requirements and technologies, together with our implementation experience with the development of an integrated management system for a company network.
Mitigation of Dynamic Effects in a Specific Wind Turbine Generation System through Use of STATCOM
Authors: M. D. Lucas  , A. F. Carneiro  , F. K. A. Lima
Published: May 2017

This paper presents studies related to application of a STATCOM (Static Synchronous Compensator) with the goal of providing voltage support to a wind-power system based on DFIG (Double Fed Induction Generator) The STATCOM is connected at the point of common connection (PCC) to mitigate energy quality problems. Scenarios were evaluated with input and output loads of various nature. The results of a model built in software PSCAD / EMTDC were presented and discussed
Estimating the potential for conservation of electrical energy in the residential sector of Manaus AM/Brazil, from the power quality evaluation
Authors: Elizabeth Cartaxo  , Ilsa Valois  , Amilson Damasceno  , Márcia Costa
Published: May 2017

This work is a study of electricity supplied to residential customers in the city of Manaus-AM/Brazil. We selected three residential consumers with profiles of different loads, of which were collected data concerning the quality of the energy used in homes. The research made use of a tool, the analyser of power quality, KEW 6310. On the basis of procedures for electricity distribution by ANEEL, which provides for minimum requirements for energy (voltage and frequency) we compared the results of the evaluation in selected consumers, where, from the point of view of the network voltage and frequency, the minimum levels laid down by ANEEL are serviced. However, are observed significant levels of harmonic distortion of currents on consumers in study. Finally, it is shown the impact caused by these distortions in the elevation of consumption and the estimation of energy conservation in the residential sector.
Influence of OASL gene polymorphisms on host response to interferon therapy in chronic hepatitis C virus patients
Authors: Kiprijanovska Sanja , Stefanovska Emilija Sukarova , Noveski Predrag , Ivanova Viktorija Chaloska , Plaseska-Karanfilska Dijana
Published: May 2017

Hepatitis C virus (HCV) infection becomes a major public health problem and leading cause of chronic liver disease and liver failure. Pegylated interferon-alfa and ribavirin are currently the standard treatment for chronic hepatitis C (CHC). It is indicated that genes that trace the interferon signaling could be associated with the host response to the therapy. In order to investigate the influence of these genes on host related response, we have analyzed seven single nucleotide polymorphisms (rs59248852, rs74390571, rs12811390, rs1169279, rs3213545, rs1083129 and rs2859398) in 2-5-Oligoadenylate- Synthetase-Like (OASL) gene in CHC cases from Republic of Macedonia. A simple and easy to use SNaPshot method was developed. A cohort of 100 HCV RNA positive patients - non responders and 109 patients with achieved virological response after the standard treatment were included in this study. We have found significant association in five of the seven studied SNP` s: rs59248852 [p = 6.5x10-31, OR=55.7 (20.0-155.3)]; rs12811390 [p = 2.2x10-11, OR=4.3 (2.3-6.7)]; rs2859398 [p=1.34x10-9, OR=3.4 (2.2-5.0)]; rs74390571 [p=4.3x10-7, OR=2.9 (1.9-4.4)], and rs1083129 [p=0.0139, OR=2.0 (1.1-3.5)]. The results from this study can be used as a predictive factor of future patient’s selection for the standard therapy, having an important cost benefit for the health insurance system.
Combined approach to analysis of protein-protein interactions
Authors: Svirid Andrei Vasilievich , Gilep Andrei Aleksandrovich
Published: May 2017

In this work combined approach for protein-protein interactions analysis is described.
Study of genetic variability of Ribes L. representatives grown in Belarus
Authors: Mezhnina Volha Anatol’evna , Urbanovich Aksana Yuryeuna
Published: May 2017

The research aims to study the genetic variability of Ribes L. representatives grown in Belarus, and to reveal a set of DNAmarkers for its DNA-identification. We formed a set of SSR-markers that possess rather high diagnostic value and allow identifying of black currant and gooseberry varieties at a molecular level and can be recommended for DNA-identification of those cultures.
Cell wall gene expression in two sub-species of flax
Authors: Galinousky Dmitry , Padvitski Tsimafei
Published: May 2017

In this work, we attempted to elucidate mechanisms of flax fiber biogenesis by measuring, using qPCR, expression of the cellwall related genes (cellulose synthase, cellulose synthase-like and chitinase-like genes) in stems of two contrasting fiber quality subspecies of flax (Linum usitatissimum L.). We studied elongatum Vav. et Ell. (cultivar Blakit, Belarus) and crepitans Boenn. (dehiscent flax) subspecies, which are differed in the height of plants, width of stems etc. Amongst all measured genes chitinase- like Ctl19 and Ctl21 genes showed drastic difference in expression between stems of the two flax varieties, showing higher expression level in the fiber flax versus the dehiscent flax. In contrast, cellulose synthase-like CslG4 gene had lower expression levels in the stem of fiber flax than in dehiscent flax. We suggest that hemicellulose composition and cellulose - non-cellulose glycan organisation can vary between stalk cells of different flax subspecies.
Testing for the presence of potato pathogens of viral, bacterial and viroid diseases
Authors: Kurpatov Dmitry Alexandrovich , Solyanik Anastasia Alexandrovna
Published: May 2017

The article considers a complex method of selecting parental lines, which significantly reduces the time of selection of parental lines and their introduction into culture.
Problematika Bauksit di Tanah Gurindam (Analisis Proses Legislasi Kebijakan Tambang Bauksit di Kota Tanjungpinang)
Authors: Setyadiharja Rendra
Published: May 2017

Persoalan tambang bauksit telah menjadi sebuah masalah yang berkepanjangan. Mulai dari periode kepemimpinan Suryatati A.Manan-Edward Mushalli sebagai Walikota dan Wakil Walikota Tanjungpinang kurung waktu 2008-2012 hingga sekarang telah terpilih Lis Darmansyah-Syahrul sebagai Walikota dan Wakil Walikota Tanjungpinang periode 2013-2018 masih saja santer terdengar berita miring terkait penambangan bauksit di Kota Tanjungpinang. Makalah ini akan menganalisis fenomena tersebut dan akan mencoba mencari jawaban, mengapa masalah tambang bauksit ini masih saja menjadi masalah di Kota Gurindam tersebut. Dengan menggunakan analisis tinjauan literatur dan mengkombinasikannya dengan data sekunder, maka akan dihasilkan sebuah analisis bagaimana proses legislasi yang berkembang terkait regulasi sebagai sebuah jalan menyelesaikan masalah tambang bauksit di Kota Tanjungpinang. Selain itu juga akan dilihat siapa dan bagaimana kekuatan aktor-aktor yang mengambil peran dalam proses legislasi terkait masalah tambang bauksit di Kota Tanjungpinang.
Kajian Desain Penataan Daerah Bidang Manajemen Pemerintahan Di Provinsi Papua Barat
Authors: Simangunsong Fernandes
Published: May 2017

The implementation of regional autonomy within the framework of decentralization is a complex and continuous work . In the early stages of decentralization , there is a transfer of various types of authority from the center to the various institutions , especially institutions subnational governments . After the transfer of authority will then be followed by the transfer of financing , documents and facilities . After the completion stages passed , does not mean the work has been completed . It appears a series of new challenges related to the ability of isntitusi who obtained the transfer of authority to manage it properly . Without good management , decentralization is precisely that for democracy , effectiveness , efficiency and fairness can not be achieved . It would appear the sources of inefficiency , ineffectiveness and new injustices in areas that can be a trigger for a second series of multidimensional crisis
Pengaruh Pendidikan Dan Pelatihan, Motivasi Kerja Terhadap Kualitas Pelayanan Dinas Kependudukan Dan Catatan Sipil Kota Baubau
Authors: Basir Muh Askal
Published: May 2017

Tujuan penelitian ini adalah untuk mengetahui besarnya pengaruh pendidikan dan pelatihan serta motivasi kerja pegawai terhadap kualitas pelayanan publik, menjelaskan seberapa besar pengaruh pendidikan dan pelatihan pegawai terhadap kualitas pelayanan publik dan menjelaskan seberapa besar pengaruh motivasi kerja pegawai terhadap kualitas pelayanan publik. Berdasarkan hasil analisa dan pembahasan dalam penelitian ini, dapat disimpulkan bahwa dari hasil estimasi parameter model struktural menunjukkan bahwa nilai statistik c2pada derajad kebebasan(db) 42sebesar 36.32 dengan p-value sebesar 0.71803 > 0,05 dan t-value 2,37 > 1,96 maka Pendidikan dan pelatihan serta motivasi kerja pegawai memiliki pengaruh yang signifikan terhadap kualitas pelayanan publik. Nilai parameter g11 sebesar 0,52 dengan t-value 4.51 > 1,96 yang menunjukan efek langsung pendidikan dan pelatihan terhadap kualitas layanan publik sebesar 52,00%  sehingga menyatakan bahwa Pendidikan dan pelatihan  pegawai  memiliki pengaruh yang signifikan terhadap kualitas pelayanan publik. Nilai parameter g21 sebesar 0,61 dengan t-value = 5,81 > 1,96 yang menunjukan efek langsung motivasi kerja terhadap kualitas layanan publik sebesar 61,00% sehingga menyakan bahwa Motivasi kerja pegawai memiliki pengaruh yang signifikan terhadap kualitas pelayanan publik.
Kebijakan Inovasi Teknologi Informasi (IT) Melalui Program Elektronik Goverment dalam Meningkatkan Kualitas Pelayanan Publik di Indonesia
Authors: Supriyanto Eko Eddya
Published: May 2017

Kolaborasi antara tata kelola pemerintah (management) dan teknologi akan membantu pemerintah untuk meningkatkan kualitas di bidang pelayanan publik. Elektronik Goverment merupakan penggunaan teknologi informasi yang dapat meningkatkan hubungan antara pemerintah dan pihak-pihak lain (masyarakat). Dengan pembentukan e-goverment diharapkan dapat meningkatkan transaksi pelayanan publik yang tidak dibatasi oleh sekat waktu dan lokasi, serta dengan biaya yang terjangkau oleh masyarakat. Dalam mengembangkan sistem manajemen dan memanfaatkan kemajuan teknologi informasi dan komunikasi, maka pemerintah harus segera melaksanakan proses transformasi menuju e-goverment.
Kebijakan Relokasi Pedagang Kaki Lima (PKL) di Kawasan Kota Tegal
Authors: Widodo Agus Setio , Idayanti Soesi , Permanasari Dyah Irma , Sahri Agus
Published: May 2017

Akselerasi pembangunan daerah perkotaan akan berakibat pada peningkatan kebutuhan akan sandang, pangan, papan, beserta prasarana dan sarana penunjangnya yang selanjutnya berdampak pada peningkatan kebutuhan investasi. Disamping itu investasi diperlukan umtuk mempertahankan tingkat pertumbuhan ekonomi yang tinggi dan agar tetap dapat bersaing dalam pasar global. Sebagai bagian integral dari pembangunan nasional, tujuan pembangunan Kota Tegal tidak terlepas dari tujuan pembangunan nasional itu sendiri yang ingin mewujudkan  suatu masyarakat yang adil dan makmur, merata baik spirituil maupun materiil berdasarkan Pancasila dan Undang-Undang Dasar 1945 dalam wadah Negara Kesatuan Republik Indonesia. Untuk itu upaya pelaksanaan pembangunan daerah senantiasa didasarkan pada otonomi yang semakin nyata, dinamis, serasi dan bertanggung jawab dalam rangka untuk lebih meningkatkan aspek pemerataan pembangunan dan hasil-hasilnya.Kebijakan relokasi pedagang kaki lima (PKL) di sekitar alun-alun dan Jl. Pancasila kota Tegal merupakan upaya pemerintah kota Tegal untuk mengatur keberadaan PKL yang selama ini dianggap menggangu ketertiban umum.
Evaluasi Program Nasional Pemberdayaan Masyarakat (PNPM) Mandiri Perdesaan Kabupaten Bintan
Authors: Jenawi Billi
Published: May 2017

Setiap daerah di Kabupaten Bintan memiliki karakteristik yang berbeda sehingga Program Pemerintah Kabupaten Bintan dalam memberdayakan masyarakat khususnya melalui Program Nasional Pemberdayaan Masyarakat (PNPM) Mandiri perlu disesuaikan dengan karakteristik dari masing-masing daerah. Dalam hal ini, Pemerintah Kabupaten Bintan belum memperhatikan kebutuhan masyarakat dan hanya mengambil keputusan sendiri dalam pelaksanaan PNPM. Dengan begitu perlu adanya penilaian atas program yang telah dilaksanakan di tiga lokasi dan menelaah dampak positif ataupun sebaliknya yang dirasakan masyarakat setempat. Hasil penelitian ini mendapati ketidaksesuaian penyaluran bantuan PNPM Mandiri yakni berupa pengadaan taman bacaan di Teluk Bakau, sementara yang dibutuhkan masyarakat ialah pengadaan air bersih karena sumur disekitar mengalami kemarau sedangkan di Desa Malang Rapat, Bantuan PNPM Mandiri dalam bentuk program yang berbeda disalurkan Pemerintah Kabuaten Bintan digunakan untuk membangun pemukiman masyarakat. Jika dilihat dari informasi yang telah didapatkan penyaluran dana bantuan PNPM Mandiri. Pemerintah Kabupaten Bintan sebaiknya lebih memperhatikan masyarakat dengan mengadakan suatu forum diskusi kecil yang mengundang RT, RW, dan tokoh-tokoh masyarakat yang berpengaruh sehingga Pemerintah Kabupaten Bintan dapat memahami usulan warga setempat
Pelaksanaan Kebijakan Dalam Pengelolaan Sampah Oleh Kantor Kebersihan, Pertamanan dan Pemakaman Kota Tanjungpinang
Authors: Sujarwani Riau
Published: May 2017

Penelitian Ini bertujuan untuk mengetahui pelaksanaan kebijakan dalam pengelolaan sampah oleh Kantor Kebersihan, Pertamanan dan Pemakaman Kota Tanjungpinang (studi pada kegiatan daur ulang sampah) serta untuk mengetahui hambatan-hambatan dalam pelaksanaannya. Pada penelitian ini, konsep teori yang digunakan, merupakan sebuah teori milik Daniel Mazmanian dan Paul A. Sabatier dalam Wahab (2004:102) bahwa variabel keberhasilan pelaksanaan kebijakan yaitu: keluaran kebijakan, kepatuhan kelompok sasaran, dampak nyata kebijakan dan persepsi terdapat dampak. Penelitian ini merupakan penelitian deskriptif dengan data kualitatif dan penelitian ini dilakukan di Kantor Kebersihan, Pertamanan dan Pemakaman Kota Tanjungpinang. Populasi dalam penelitian ini berjumlah 50 orang dan 8 orang yang dijadikan sampel dengan teknik yang digunakan adalah teknik purposive sampling. Menggunakan analisa kualitatif sebagai teknik analisa dataKesimpulan dari penelitian menggambarkan pelaksanaan kebijakan dalam pengelolaan sampah oleh Kantor Kebersihan, Pertamanan dan Pemakaman Kota Tanjungpinang (studi pada kegiatan daur ulang sampah) berjalan cukup baik. Hal ini dapat dilihat dari sasaran kebijakan yang cukup baik, mengingat masih banyak adanya hambatan – hambatan yang terjadi. Hambatan yang dihadapi adalah sulit dalam menempatkan TPS (Tempat Pembuangan Sementara) seperti kontainer dan bak sampah permanen yang berdekatan dengan sentra pemukiman penduduk. Disamping itu ada faktor penghambat lainnya adalah kurangnya sarana dan prasarana seperti kurangnya jumlah armada kebersihan baik personil maupun peralatan seperti dump truck, arm roll dan alat berat serta alat pengolahan pengomposan dan masih kurangnya kesadaran untuk membuang sampah pada tempat sampah yang sudah disediakan oleh pemerintah.
PROFIL BERPIKIR GEOMETRI SISWA SMP DITINJAU DARI PERBEDAAN GAYA KOGNITIF
Authors: Sulaiman Sulaiman
Published: May 2017

Penelitian ini dilatari oleh adanya dugaan perbedaan kemampuan berpikir geometri siswa yang memiliki gaya kognitif Field Independent (FI) dan siswa yang memiliki gaya kognitif Field Dependent (FD). Berdasarkan dugaan tersebut maka tujuan dari penelitian ini adalah mendeskripsikan kemampuan berpikir geometri siswa yang menjadi subjek penelitian berdasarkan perbedaan gaya kognitif siswa pada materi segi empat.Penelitian yang berpendekatan kualitatif naturalistik ini, mengambil satu siswa yang memiliki gaya kognitif Field Independent (FI) dan satu siswa yang memiliki gaya kognitif Field Dependent (FD) sebagai subjek penelitian. Dalam metode ini, untuk menjaring informasi tentang profil berpikir geometri subjek penelitian, masing-masing subjek penelitian diberi lembar kegiatan dengan enam kegiatan yang meliputi: (1) Menggambar bangun-bangun segiempat, (2) Menemutunjukkan dan mendefinisikan segiempat, (3) Menseleksi bangun-bangun segiempat, (4) Menebak bangun misteri, (5) Keekuivalenan dua definisi jajargenjang, dan (6) Penerapan bangun segiempat. Agar data dari hasil kegiatan siswa valid maka dilakukan triangulasi dengan menggunakan tehnik dan waktu yang berbeda. Subjek diwawancarai dalam enam kegiatan yang sama seperti tersebut di atas. Kemudian data informasi berpikir gemoetri siswa dari hasil wawancara dan hasil lembar kegiatan dikroscek, setelah valid kemudian dianalisis.
PERBANDINGAN ANTARA STRUKTUR RANGKA DENGAN STRUKTURGABLE PEMBANGUNAN RENOVASI GEDUNG TEKNOLOGI MEKANIKUPT. BALAI LATIHAN KERJA KABUPATEN SUMENEP
Authors: Andriani Dewi Yulistiana , Nura Diana Anita Intan
Published: May 2017

Pembangunan  renovasi  gedung  teknologi  mekanik menggunakan tipe struktur baja gable. Tipe struktur baja lain  yaitu  struktur  atap  rangka  juga  dapat  digunakan pada  pembangunan  gedung  ini.  Struktur  gable   dan struktur rangka memiliki keunggulan dalam menahan beban-beban   atas   pada   bangunan.   Kedua   struktur tersebut  menggunakan  profil  baja yang  berbeda, sehingga biaya yang dibutuhkan juga memiliki selisih perbandingan.Pengolahan data untuk perhitungan struktur menggunakan perhitungan manual yaitu dengan metode kesetimbangan titik simpul untuk struktur rangka dan metode cross untuk perhitungan struktur gable. Untuk perhitungan desain struktur digunakan metode LRFD. Perhitungan  anggaran  biaya dilakukan dengan  cara unit price atau perhitungan anggaran biaya yang didasarkan dari harga satuan sesuai keputusan bupati tahun 2014.Hasil  perhitungan  struktur  diperoleh  penggunaan profil baja WF 150x75x5x7 pada struktur gable dan penggunaan profil baja kuda-kudadouble siku L50.50.5. Total anggaran biaya yang dibutuhkan untuk pekerjaan struktur gable diperoleh sebesar Rp 214.173.400,01,-, sedangkan yang dibutuhkan untuk pekerjaan struktur rangka diperoleh sebesar Rp 160.215.612,00,-. Jadi, perbandingan   biaya   antara   struktur   gable   dengan struktur     rangka     memiliki     selisih     sebesar     Rp 53.957.788,02,-.Kata Kunci  :    Struktur, Rangka, Gable, Biaya
PENANGGULANGAN ABRASI PANTAI DI DESA GERSIK PUTIH KECAMATAN GAPURA
Authors: Syafi'i Moh , Chayati Cholilul
Published: May 2017

Indonesia merupakan negara kepulauan yang memiliki garis pantai yang terpanjang nomor dua di dunia. Namun dari banyaknya pulau yang berada di Indonesia tidak semua pantainya terjaga dengan baik sehingga banyak mengalami kerusakan, salah satu penyebab terjadinya abrasi pantai. Abrasi pantai yaitu penggerusan yang terjadi di daerah pesisir yang di akibatkan oleh arus gelombang air laut dalam jangka waktu yang cukup lama dan juga diakibatkan oleh prilaku manusia kurang baik. Permasalahan seperti telah di Desa Gersik Putih Kecamatan yang mengekibatkan masuk air laut ke lahan pegaraman dan pemukiman penduduk.Sebenarnya di Desa Gersik Putih telah terdapat tumpukan-tumpukan batu di pinggir pesisirnya, tetapi tumpukan batu tersebut tidak mampu untuk menahan arus gelombang air laut. Maka dari itu perlu di desain kontruksi bangunan pantai yang sesuai dengan keadaan pantai Gersik Putih yang berupa bangunan pantai Revetment.Dari hasil penlitian dan pembahasan didapat nilai sedimentasi pantai sebesar 6238,659 m3/hari, tinggi bangunan setinggi 3,15 m, lebar puncak bangunan 0,9 m, tinggi toe protection 0,5 m, dan lebar toe protection 5 m.Diharapkan desain kontruksi bangunan pantai ini dapat diterapkan oleh pemerintah terkait. Demi ketenangan dan kenyaman penduduk Desa Gersik Putih dalam menghadapi abrasi pantai selama ini.
Xây dựng mô hình ra quyết định đa tiêu chuẩn tích hợp để lựa chọn và phân nhóm nhà cung cấp xanh
Authors: Bui Phuong Hong , Nguyen Thu Thi Phan , Tran Anh Thi Lan , Luu Dat Quoc
Published: May 2017

Tóm tắt: Cùng với sự gia tăng nhận thức của cộng đồng về vấn đề môi trường và các quy định của chính phủ, lựa chọn và phân nhóm nhà cung cấp xanh đã trở thành vấn đề chiến lược giúp doanh nghiệp giành và duy trì lợi thế cạnh tranh trên thị trường toàn cầu. Nghiên cứu này xây dựng mô hình ra quyết định tích hợp mới để lựa chọn và phân nhóm nhà cung cấp xanh. Mô hình đề xuất kết hợp phương pháp phân tích thứ bậc (AHP) để xác định trọng số và phương pháp điểm lý tưởng (TOPSIS) để xếp hạng và phân nhóm các nhà cung cấp xanh tiềm năng. Mô hình đề xuất cho phép giá trị tỷ lệ của các lựa chọn và trọng số của các tiêu chuẩn đánh giá được biểu diễn dưới dạng các biến ngôn ngữ. Cuối cùng, mô hình đề xuất được ứng dụng trong trường hợp thực tế để làm rõ quy trình tính toán của mô hình.
Is GPS telemetry location error screening beneficial?
Authors: Ironside Kirsten E. , Mattson David J. , Arundel Terence R. , Hansen Jered R.
Published: May 2017

The accuracy of global positioning system (GPS) locations obtained from study animals tagged with GPS monitoring devices has been a concern as to the degree it influences assessments of movement patterns, space use, and resource selection estimates. Many methods have been proposed for screening data to retain the most accurate positions for analysis, based on dilution of precision (DOP) measures, and whether the position is a two dimensional or three dimensional fix. Here we further explore the utility of these measures, by testing a Telonics GEN3 GPS collar's positional accuracy across a wide range of environmental conditions. We found the relationship between location error and fix dimension and DOP metrics extremely weak (r2adj ∼ 0.01) in our study area. Environmental factors such as topographic exposure, canopy cover, and vegetation height explained more of the variance (r2adj = 15.08%). Our field testing covered sites where sky‐view was so limited it affected GPS performance to the degree fix attempts failed frequently (fix success rates ranged 0.00–100.00% over 67 sites). Screening data using PDOP did not effectively reduce the location error in the remaining dataset. Removing two dimensional fixes reduced the mean location error by 10.95 meters, but also resulted in a 54.50% data reduction. Therefore screening data under the range of conditions sampled here would reduce information on animal movement with minor improvements in accuracy and potentially introduce bias towards more open terrain and vegetation.
Comparison of methods for estimating Amur tiger abundance
Authors: Riley Meghan , Soutyrina Sveta , Miquelle Dale , Hayward Gregory , Goodrich John , Buskirk Steven
Published: May 2017

The Amur tiger Panthera tigris altaica is endangered throughout its range. Estimating abundance to monitor population trends is needed to judge success of conservation efforts. However, low densities and elusive behavior make precise estimates difficult to achieve. Managers must employ sampling methods that maximize precision while remaining feasible under constraints inherent to areas tigers inhabit. We applied camera trap, hair snare, DNA collection, scent‐matching dog, morphometric track identification and track survey methods and developed a rubric to evaluate their efficacy in estimating tiger abundance in Russia. We conducted sampling over the course of one year in Sikhote‐Alin Biosphere Zapovednik (SABZ). We ranked candidate methods using logistical, statistical and cost criteria to evaluate their efficacy for monitoring tiger numbers. Due to logistical and technical constraints, we relied on data from a parallel study to derive three statistical criteria for the DNA collection method. Camera traps, DNA collection, and track surveys were the only methods with sufficient sample sizes to estimate abundance for each sampling session during which the method was tested. DNA collection and camera traps were promising statistically, though poor‐performing for logistics and cost. Technical improvements in camera trap design since the time of this study may improve the method's statistical and cost performance compared to our evaluation. Conversely, track surveys were most efficient logistically and financially, but poor statistically. Method choice for any given monitoring situation should consider local conditions and the specific objectives of the monitoring program in light of all three criteria — statistical, logistical and cost. Failure in any of these areas can lead to failure of a monitoring program.
Looking for a common ground: useful knowledge and adaptation in wolf politics in southwestern Finland
Authors: Pellikka Jani , Hiedanpää Juha
Published: May 2017

When Finland joined the European Union (EU) in 1995, the grey wolf Canis lupus became strictly protected. The wolf population grew gradually until 2007, at which point it exceeded 250 wolves. Since then, the population size has drastically fluctuated between 150 and 240 animals. Current wolf policy that coordinates wolf‐related human actions has not succeeded in stabilizing the population size on the favorable conservation level. We argue that the understanding of epistemic contestations and social practices in local knowledge production is a key to the improved wolf management.

In this case study, we explore wolf hunters' (license applicant's) epistemic adaptations in their interplay with regional authorities as both parties' have attempted to find a common ground of wolf management by means of culling specific wolves. We collected data that cover a nine‐year history of one wolf‐territory in southwestern Finland.

Our results indicate that epistemic adaptations that began after appearance of wolves to the region related to 1) how wolf knowledge production was made useful for those participating in it; and 2) how local actors adapted to changing administrative epistemic requirements and processes related to the wolf management. In our case, hunters actively built networking to collect information, and learned to play a strategic game of providing specific descriptive knowledge on the habits of ‘the problem wolf’, and compulsive prescriptive knowledge concerning solutions to the problem. The case shows how the epistemic adaptation in the context of policy and management is associated with the purposes and reasons of local agents in knowledge production. Now that large carnivores have during recent decades been returning to modern human‐dominated landscapes in Europe, an increasing challenge is, how to govern the process of adaptation and create opportunities for utilizing the potential of local knowledge capacity in collective problem solving beyond that of lethal management.
Wintering bird responses to the presence of artificial surface water in a semi‐arid rangeland
Authors: Tanner Evan P. , Elmore R. Dwayne , Davis Craig A. , Fuhlendorf Samuel D.
Published: May 2017

Provision of artificial surface water has been suggested as a management practice that can benefit wildlife in arid and semi‐arid regions. With unprecedented droughts predicted for many of these areas in North America in coming decades, understanding species response to the provision of artificial surface water should be evaluated. Moreover, a dearth of knowledge exists in the understanding of avian response to artificial surface water during the non‐breeding season. To address this lack of knowledge, we sampled the avian community at varying distances from water sources in Beaver County, Oklahoma, USA from February–March 2013–2014. A total of 20 species were detected. We found no relationship to avian species richness and distance to water. Likewise, pooled data of detections across all species indicated no relationship in relation to artificial surface water. Analysis on individual species indicated that western meadowlarksSturnella neglectadid not respond to water. However, American tree sparrowsSpizella arborea(plateau model β = 0.05, SE = 0.01) were attracted to surface water sources up to a distance of 100 m (SE = 40.19 m). Furthermore, white‐crowned sparrowsZonotrichia leucophrys(linear β = ‐0.01, SE = 0.006) were attracted to surface water sources up to distance of 250 m. Additionally, analysis indicated that used water sources by American tree sparrows had significantly more mixed shrub cover (%) when compared to unused water sources (β = 6.04, SE = 2.64; p = 0.03) and that use of water sources by white‐crowned sparrows was influenced by the amount of mixed shrub cover within 50 m of the water source (β = 0.36, SE = 0.16; p = 0.02). Our results suggest that some overwintering sparrows will alter space use in response to the presence of artificial surface water, however, it is unknown whether provision of water influences overwinter survival of sparrows.
Toward a National Universal Guaranteed Basic Income
Authors: Stevens Harvey , Simpson Wayne
Published: May 2017

There is renewed discussion of a basic or guaranteed income at both the federal and the provincial levels in Canada, but counterarguments about the cost, work disincentives, and electoral appeal of such schemes remain challenging. In this article, we argue that a grand plan for a basic or guaranteed income is unnecessary because self-financing redesign of existing tax credits to be refundable can better target benefits to low-income families while improving tax equity. Using 2015 tax and transfer parameters and estimates of income and population, we assess the federal transfer system as a source of universal income security, identify the revenues that can be raised through the elimination of selected federal tax credits, present four options that could be financed within that budget constraint, assess their performance, and select our preferred universal basic guaranteed income (UGBI) option. We then provide a more detailed assessment of the impact of our preferred UGBI design and discuss the extension of that design to provincial tax and transfer systems. We estimate that the combined federal and provincial UGBI that we propose would effectively target benefits to low-income households and virtually eliminate poverty for all but single non-elderly individuals at a modest efficiency cost in terms of work disincentives.
Kirsty Johnston, Disability Theatre and Modern Drama: Recasting Modernism
Authors: McKelvey Patrick
Published: May 2017

Disability Theatre and Modern Drama addresses the enduring presence of disability representation within the canon of modern drama while also demonstrating how a consideration of disability politics and aesthetics from the past half-century might prompt a reconfiguration of modern drama’s methods and objects of analysis.
A highly efficient heterogeneous copper-catalysed cascade reaction of aryl iodides with acetamidine hydrochloride leading to primary arylamines
Authors: Huang Xue , Xiao Ruian , You Chongren , Yan Tao , Cai Mingzhong
Published: May 2017

A highly efficient heterogeneous copper-catalysed cascade reaction of aryl iodides with acetamidine hydrochloride was achieved in DMF in the presence of 10 mol% of an MCM-41-immobilised L-proline-copper(I) complex (MCM-41-L-proline-CuI) with Cs2CO3 as base, yielding a variety of primary arylamines in good to excellent yields. The new heterogeneous copper complex can be easily prepared from commercially readily available and inexpensive reagents, recovered by a simple filtration of the reaction solution and used at least seven more times without any decrease in activity.
Comparative N-Glycosylation Analysis of the Fc Portions of a Chimeric Human Coagulation Factor VIII and Immunoglobulin G1
Authors: Kannicht Christoph , Kröning Mario , Solecka-Witulska Barbara , Kohla Guido , Rosenlöcher Julia
Published: May 2017

Prevention and treatment of bleeding in patients suffering from hemophilia A are inconvenient due to repeated intravenous infusions owing to the short half-life of coagulation factor VIII (FVIII) in circulation. Besides (glyco-)pegylation of the FVIII molecule, a bioengineering approach comprises the protein fusion to Fc-immunoglobulin (Ig)G that mediate protection from clearance or degradation via binding to the neonatal Fc receptor. While human-like N-glycosylation of recombinant FVIII is known to be crucial for the clotting factor’s quality and function, the particular glycosylation of the fused Fc portion has not been investigated in detail so far, despite its known impact on Fcγ receptor binding. Here, we analyzed the N-glycosylation of the Fc part of a chimeric FVIII-Fc protein compared to a commercial IgG1 purified from human plasma. Fc parts from both samples were released by enzymatic cleavage and were subsequently separated via sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). Corresponding protein bands were referred to PNGase F in-gel digestion in order to release the respective N-glycans. Analysis via matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry revealed structural differences of both N-glycan patterns. Labeling with 2-aminobenzamide (2AB) and analysis via hydrophilic interaction liquid chromatography (HILIC) allowed a quantitative comparison of the respective N-glycosylation. Observed variations in Fc glycosylation of the chimeric FVIII fusion protein and human plasma-derived IgG1, e.g., regarding terminal sialylation, are discussed, focusing on the impact of the clotting factor’s properties, most notably its binding to Fcγ receptors.
Mental Health Service Utilization among Black Youth; Psychosocial Determinants in a National Sample
Authors: Assari Shervin , Caldwell Cleopatra
Published: May 2017

Racial disparity in mental health service utilization (MHSU) persists, and youths are not an exception to the underutilization of services. Very limited research has been conducted on the determinants of MHSU among Black youth. Using a national sample of American Black youth, the current study investigated the association between demographic factors, socioeconomic status, psychiatric disorders, and self-rated health (SRH) on MHSU. We also tested the heterogeneity of the effects of SRH and psychiatric disorders based on ethnicity, gender, and their intersection. We used data from the National Survey of American Life-Adolescents supplement (NSAL-A), 2003–2004. The study enrolled 1170 Black youth between 13 and 17 years old including 810 African Americans and 360 Caribbean Blacks. Age, gender, ethnicity, socioeconomic status, SRH, 12-month psychiatric disorders (Composite International Diagnostic Interview modified version), and MHSU (last year) were measured. Logistic regressions were used for data analysis. Ethnicity (odds ratio (OR) = 0.33, 95% confidence interval (CI) = 0.17–0.65), subjective socioeconomic status (OR = 1.43, 95% CI = 1.09–1.88), SRH (OR = 2.45, 95% CI = 1.00–6.37), and psychiatric disorders (OR = 2.17, 95% CI = 1.05–4.48) were associated with MHSU. Age, gender, and objective socioeconomic status were not associated with MHSU. Gender and ethnicity did not interact with SRH and psychiatric disorders on MHSU. Actual and perceived need both universally influence Black youths’ likelihood of MHSU, regardless of their ethnicity and gender. Ethnicity and perceived socioeconomic status also play unique roles in MHSU. Future research is needed to understand pathways to MHSU for Black youth who both have and perceive mental health needs. There is also a need to find ways to promote MHSU for those with a need for mental health services.
Design of a Convolutional Two-Dimensional Filter in FPGA for Image Processing Applications
Authors: Licciardo Gian , Cappetta Carmine , Di Benedetto Luigi
Published: May 2017

Exploiting the Bachet weight decomposition theorem, a new two-dimensional filter is designed. The filter can be adapted to different multimedia applications, but in this work it is specifically targeted to image processing applications. The method allows emulating standard 32 bit floating point multipliers using a chain of fixed point adders and a logic unit to manage the exponent, in order to obtain IEEE-754 compliant results. The proposed design allows more compact implementation of a floating point filtering architecture when a fixed set of coefficients and a fixed range of input values are used. The elaboration of the data proceeds in raster-scan order and is capable of directly processing the data coming from the acquisition source thanks to a careful organization of the memories, avoiding the implementation of frame buffers or any aligning circuitry. The proposed architecture shows state-of-the-art performances in terms of critical path delay, obtaining a critical path delay of 4.7 ns when implemented on a Xilinx Virtex 7 FPGA board.