bluuebunny/crossref_metadata_2025 huggingface dataset:
Realization of 2D (2,2)–Periodic Encoders by Means of 2D Periodic Separable Roesser Models
Authors: Napp Diego , Pereira Ricardo , Pinto Raquel , Rocha Paula
Published: October 2019

It is well known that convolutional codes are linear systems when they are defined over a finite field. A fundamental issue in the implementation of convolutional codes is to obtain a minimal state representation of the code. Compared with the literature on one-dimensional (1D) time-invariant convolutional codes, there exist relatively few results on the realization problem for time-varying 1D convolutional codes and even fewer if the convolutional codes are two-dimensional (2D). In this paper we consider 2D periodic convolutional codes and address the minimal state space realization problem for this class of codes. This is, in general, a highly nontrivial problem. Here, we focus on separable Roesser models and show that in this case it is possible to derive, under weak conditions, concrete formulas for obtaining a 2D Roesser state space representation. Moreover, we study minimality and present necessary conditions for these representations to be minimal. Our results immediately lead to constructive algorithms to build these representations.
A Fast Neural Network Learning Algorithm with Approximate Singular Value Decomposition
Authors: Jankowski Norbert , Linowiecki Rafał
Published: October 2019

The learning of neural networks is becoming more and more important. Researchers have constructed dozens of learning algorithms, but it is still necessary to develop faster, more flexible, or more accurate learning algorithms. With fast learning we can examine more learning scenarios for a given problem, especially in the case of meta-learning. In this article we focus on the construction of a much faster learning algorithm and its modifications, especially for nonlinear versions of neural networks. The main idea of this algorithm lies in the usage of fast approximation of the Moore–Penrose pseudo-inverse matrix. The complexity of the original singular value decomposition algorithm is O(mn2). We consider algorithms with a complexity of O(mnl),where l<n and l is often significantly smaller than n. Such learning algorithms can be applied to the learning of radial basis function networks, extreme learning machines or deep ELMs, principal component analysis or even missing data imputation.
On Explainable Fuzzy Recommenders and their Performance Evaluation
Authors: Rutkowski Tomasz , Łapa Krystian , Nielek Radosław
Published: October 2019

This paper presents a novel approach to the design of explainable recommender systems. It is based on the Wang–Mendel algorithm of fuzzy rule generation. A method for the learning and reduction of the fuzzy recommender is proposed along with feature encoding. Three criteria, including the Akaike information criterion, are used for evaluating an optimal balance between recommender accuracy and interpretability. Simulation results verify the effectiveness of the presented recommender system and illustrate its performance on the MovieLens 10M dataset.
The Effects of Clinoptilolite Administration on the Appetite, the Consistency of Faeces and the Histology of the Small Intestine in Growing Pigs
Authors: Novotný J. , Reichel P. , Bárdová K. , Kyzeková P. , Almášiová V.
Published: October 2019

Clinoptilolite (Cp) is the most common and suitable natural zeolite type for many commercial and industrial applications. Recent studies have also shown a high potential of clinoptilolite in various medical applications. The aim of our study was to evaluate the effect of long-term peroral administration of clinoptilolite on appetites, the consistency of faeces, and the histopathology of the intestines of growing pigs. Fourteen Landrace × Large White crossbred pigs of both genders, a few days after weaning (12.95 kg b. w.), were divided into two equal groups. The control group was fed with a basal feed mixture, and the experimental group with a feed mixture supplemented with 2 % of natural zeolite (the commercial preparation “ZeoFeed”). The appetite, clinical state and consistency of the faeces were assessed every day. The blood samples were collected on days 0, 21, and 42 of the experiment. Histological examinations of the intestines from the control and experimental animals were carried out at the end of the experiments. The supplementation of 2 % Cp did not affect neither the appetite nor the clinical state of the pigs. The faecal consistency score in the experimental animals was 18.82 % lower than that of the control piglets. The histopathological evaluations showed protective evidence of the Cp on the intestinal tract wall in the duodenum and jejunum.
Taxonomy and stratigraphic distribution of the ammonite Schloenbachia Neumayr, 1875 from the Bohemian Cretaceous Basin
Authors: Košťák Martin , Sklenář Jan , Mazuch Martin , Čech Stanislav
Published: October 2019

Only two specimens of the ammonite genus Schloenbachia have hitherto been recorded from the Bohemian Cretaceous Basin (BCB). While the first specimen was originally described by Dr. J. Soukup in the 1970s, the other one was discovered in an older collection of the Faculty of Science, Charles University in Prague in 2018. Recently, both specimens were systematically investigated and interpreted as Schloenbachia lymensis, a new ammonite species for the BCB. The stratigraphic distribution of S. lymensis as well as the palaeobiogeography of this taxon are discussed in this paper.
Cambrian hyoliths of the Příbram-Jince Basin (Barrandian area, the Czech Republic): A review of recorded taxa
Authors: Fatka Oldřich , Valent Martin
Published: October 2019

Hyoliths recorded from the middle Cambrian Jince Formation of the Barrandian area in the Czech Republic are reviewed and listed, based on various published papers printed since 1854. Up to now, only five species of hyolithids and three species of orthothecids have been reported, classified within seven genera. The reported material was collected from more than twenty small occasional outcrops and/or sections measuring up to several tens of meters in thickness, all situated exclusively in the area between the villages Felbabka and Čenkov in the Litavka River Valley. From the Paseky Shale member of the Holšiny-Hořice Formation at the Medalův mlýn locality, the first hyolith classified as “Hyolith genus and species indeterminate” is described. The new study of two specimens described and figured by Barrande in 1867 as Hyolithes primus made it possible to classify them as Jincelites vogeli and Jincelites sp. respectively.
Preparation of rGO/Bi2O3 composites by hydrothermal synthesis for supercapacitor electrode
Authors: Yang Wein-Duo , Lin Yu-Jiang
Published: October 2019

Reduced graphene oxide/bismuth oxide (rGO/Bi2O3) composites were prepared at various weight ratios of raw materials, GO and bismuth nitrate at 1:0.1, 1:0.3, 1:0.6, 1:0.9 and 1:1.2, respectively, by the improved Hummer’s method. During the process, the mixed solutions were prepared, and then rGO was obtained by hydrothermal method. Finally, the complex of rGO/Bi2O3 was prepared by calcination after hydrothermal treatment. The results show that the removal of oxygen-containing functional groups in rGO are increased with the increase of graphene agglomeration, and the Raman shifts of G band tending to the lowest wave-number. The electrochemical characteristics of the as-prepared rGO/Bi2O3 materials were also examined in 1 M KOH electrolyte. The dominating charge storage mechanisms are attributed to the electric double layer behaviors. As the content of bismuth nitrate increased, the rGO/Bi2O3 had a higher capacitance. The rGO/Bi2O3 obtained from the weight ratio of GO and bismuth nitrate of 1:1.2 as raw materials exhibit a maximum specific capacitance of 216 Fg−1, revealing that rGO/Bi2O3 obtained by hydrothermal synthesis method can be used for the carbon-electrode of a super capacitor.
Socio-Cultural Aspects of Present-Day Internal Suburban Migration in Slovakia – in the Example of the Village Soblahov in the Trenčín District
Authors: Bošelová Miriama
Published: October 2019

The present-day internal migration of people from larger or smaller towns to the countryside is characterised by suburbanisation tendencies that considerably transform the socio-cultural and spatial structure of suburban municipalities. The aim of this paper is to present, based on the ethnological research conducted in 2018–2019, selected socio-cultural aspects of present-day suburban migration with a view to the impacts of suburbanisation on the social and cultural environment in the municipality/village of Soblahov. The paper looks specifically at the inside of suburban communities, the daily-life reality of the suburban actors and on the manifestations of suburbanisation – the social and cultural aspects, as well as the time and spatial manifestations of suburban migration.
Cardiac manifestations of children with sickle cell disease in Qatif area
Authors: Alsowaiket Hussain , Dabbous Ibrahim , Darwich Anwar , Alsultan Mohammed , AlKhalifa Ali
Published: October 2019

Background: Limited information is available in literature about cardiac manifestations of children with Arab-Indian haplotype sickle cell disease (SCD). The aim of the current study was cardiovascular assessment of children with SCD. Methodology: It is a Prospective observational and cross-sectional study which was conducted at Qatif Central Hospital, Qatif, Saudi Arabia between December 2012 and June 2015. Asymptomatic children with SCD attending general pediatric and pediatric cardiology clinics were enrolled in this study. Eighty-seven patients were included in the study with mean age 7.8 (2-12) years, mean weight 23.7 (13-67) kg and 55 (63%) were male. Results: On cardiac examination, it was revealed that all patients had normal BP, normal oxygen saturation, and normal auscultation of 1st and 2nd heart sounds wherein 6% patients had tachycardia, 20 (23%) had extensive pulse pressure, and 32 (37%) had soft ejection systolic murmur, 10 (11%) had ECG evidence of left ventricular hypertrophy, and 2 (2%) had PR prolongation. Echocardiography showed that all patients had healthy chambers inflow, outflow, wall thickness, and function. No evidence of pulmonary hypertension and right atrial or ventricular enlargement was found. Among the participants 6 (7%) patients had left atrial enlargement, 18 (21%) had left ventricular enlargement, and 6 (7%) had simple congenital heart disease. Conclusion: Children with SCD originally from Qatif area had variable cardiac abnormalities. However, the prevalence of these was less frequent than that mentioned in literature with no distinct sickle cell cardiomyopathy. Although this is reassuring information to families, routine cardiac follow up is valuable.
TATA KELOLA, KOMPENSASI CEO, KARAKTERISTIK CEO, ACCOUNTING IRREGULARITIES DAN TAX AGGRESSIVENESS
Authors: Juliawaty Ririn , Astuti Christina Dwi
Published: October 2019

The purpose of this research is to examine the effect of corporate governance, CEO characteristic, CEO compensation, and accounting irregularities on tax aggressiveness. The dependent variable in this research is tax aggressiveness, while the independent variable in this research are corporate governance, characteristic CEO and CEO compensation.This study used secondary data with entire population manufacture companies listed at the Indonesia Stock Exchange (BEI) for 2015 -2017. The research sample are consists of 37 companies. The sampling method used to determine the sample is purposive sampling. The analysis model used in this research is multiple regression of panel data.Based on analytical results concluded that independent director have a significant and negative effect on tax aggressiveness while accounting irregularities has a significant and positive effect on tax aggressiveness. The board size, CEO compensation, age, and CEO tenure have no significant effect on tax aggressiveness.
Agresivitas Pajak, Keputusan Pendanaan dan Kebijakan Deviden Terhadap Pengukuran Nilai Perusahaan
Authors: Sugiyarti Listya , Ramadhani Putri
Published: October 2019

Penelitian empiris untuk membuktikan pengaruh agresivitas pajak, keputusan pendanaan dan kebijakan dividen pada nilai perusahaan dengan pengukuran price to book value. Populasi dalam penelitian ini adalah perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia dengan tahun pengamatan 2012-2016.Metode dalam penelitian kami menggunakan Purposive sampling dan sampel yang digunakan sebanyak 130 data laporan keuangan. Metode regresi linier berganda digunakan untuk menganalisis data. Hasil penelitian menunjukkan bahwa agresivitas pajak memiliki pengaruh negatif pada nilai perusahaan. Keputusan pendanaan memiliki pengaruh positif pada nilai perusahaan dan kebijakan dividen memiliki pengaruh positif pada nilai perusahaan.
VILLAGE RESOURCE MANAGEMENT SYSTEM UNTUK MENDUKUNG TATA KELOLA DESA SUNDAWENANG, SUKABUMI, JAWA BARAT
Authors: Laksamana Kemas Muslim , Darwiyanto Eko , Kusumo Dana Sulitstyo
Published: October 2019

Desa Sundawenang di Kabupaten Sukabumi, Jawa Barat, merupakan desa yang memiliki banyak potensi, antara lain posisi yang strategis di jalan raya Sukabumi-Bogor, produksi singkong, dan terdapat sejumlah industri seperti pabrik otomotif, elektronik, boneka, wig, dan sebagainya. Kondisi desa tersebut mengundang sejumlah besar pendatang, sehingga diperkirakan 40% penduduk desa bukanlah penduduk asli setempat. Tersebarnya sejumlah industri di wilayah Desa Sundawenang juga berpengaruh terhadap mata pencaharian warga. Tercatat sebanyak 41% warga berprofesi sebagai karyawan, kemudian disusul dengan wiraswasta dan jasa (28%), petani (27%), dan PNS (4%). Dengan karakteristik tersebut, Kepala Desa Sundawenang yang baru menjabat pertama kali memerlukan data dan berbagai laporan untuk menyusun berbagai program dan kebijakan desa yang sesuai. Village resource management system (VRMS) dibangun untuk memberikan solusi bagi kebutuhan Kepala Desa tersebut. VRMS terdiri dari tiga aplikasi utama, yaitu aplikasi pelayanan desa, aplikasi pengelolaan data desa, dan aplikasi analisis data. Aplikasi pelayanan desa telah diresmikan dan diberikan pelatihan penggunaannya kepada aparat Desa Sundawenang. Diharapkan aplikasi ini dapat diterapkan pada desa-desa lain di Indonesia dengan penyesuaian yang dapat dilakukan untuk mengakomodasi kebutuhan yg lebih khusus.
PENGABDIAN KEPADA MASYARKAT PELATIHAN PEMANFAATAN RUMAH PINTAR OLEH MASYARAKAT DALAM RANGKA MENGURANGI KESENJANGAN DIGITAL DESA WARGA SALUYU 2017
Authors: Liyanthy Mellia , Nurcahyo Anggoro Ari , Sakam R Djunaedy
Published: October 2019

Kesenjangan digital yang terjadi di Indonesia disebabkan oleh pembangunan infrastruktur Information Communication Technology (ICT) yang belum merata, pembangunan rumah pintar di pedesaan merupakan salah satu upaya untuk mengatasi hal tersebut. Tapi hal tersebut bukan satu- satunya penyebab, karena dapat juga disebabkan oleh ketidaksiapan masyarakat untuk memanfaatkan infratruktur ICT tersebut. Oleh karena itu dibutuhkan sebuah upaya untuk mempersiapkan masyarakat agar pemanfaatannya menjadi optimal. Pelatihan merupakan salah satu upaya yang bisa dilakukan untuk mengatasi permasalahan tersebut. Tahapan pelatihan meliputi identifikasi kebutuhan, perencanaan, pelaksanaan dan evaluasi. Terdapat 4 indikator yang digunakan untuk mengukur tingkat kesiapan masyarakat yaitu reaksi, pembelajaran, perilaku kerja, dan hasil. Pelatihan yang telah dilakukan mendapatkan tanggapan yang positif lebih dari 90% peserta, yang menyatakan sudah mengetahui dan termotivasi untuk memanfaatkan rumah pintar dalam pekerjaan mereka sehari-hari, maka dengan demikian dapat membantu mengurangi kesenjangan digital yang masih terjadi saat ini.
KLASIFIKASI TWEET KONDISI LALU LINTAS KOTA JAKARTA DENGAN PENERAPAN METODE K-NEAREST NEIGHBOR
Authors: Syafini Ziza Amira , Nasrun Muhammad , Setianingsih Casi
Published: October 2019

Setiap tahun, jumlah kendaraan di Jakarta semakin meningkat. Namun, peningkatan jumlah kendaraan bermotor di Jakarta tidak sebanding dengan penambahan ruas jalan. Kondisi ini menyebabkan terganggunya kelancaran lalu lintas dan menimbulkan titik-titik kemacetan. Untuk mengantipasi terjebak dalam kemacetan, pengguna lalu lintas mencari dan saling bertukar informasi tentang kemacetan di media sosial. Salah satu media sosial yang sering digunakan masyarakat untuk menyebarkan informasi adalah Twitter. Penelitian ini dilakukan untuk memgklasifikasi kondisi lalu lintas berdasarkan data yang didapatkan dari Twitter. Data diklasifikasikan menjadi 3 kondisi yaitu lancar, padat dan macet. Metode yang digunakan pada penelitian ini adalah k-Nearest Neighbor. Dari beberapa uji skenario yang dijalankan, didapatkan hasil rata-rata-rata akurasi di atas 70%. Nilai k yang optimal pada penelitian ini adalah 8.
ANALISIS PENCARIAN SUDUT KEDATANGAN MENGGUNAKAN ALGORITMA MUSIC UNTUK ADAPTIVE BEAMFORMING
Authors: Muhammad Cahya Budi , Wijanto Heroe , Setiawan Antonius Darma
Published: October 2019

Performansi dari suatu komunikasi nirkabel bisa ditingkatkan dengan menggunakan algoritma beamforming yang adaptif. Beamforming dapat meningkatkan efisiensi spektral dan performansi sistem komunikasi nirkabel, dengan meningkatkan penerimaan sinyal datang dan mengurangi peluang interferensi dari sebuah koneksi ke user. Untuk dapat melakukan beamforming yang adaptif, dimana teknik beamforming tersebut menyesuaikan dengan kondisi pergerakan user yang selalu berubah terhadap waktu, dibutuhkan estimasi lokasi dari sebuah user secara kontinu. Algoritma Direction of Arrival (DOA) bisa memberikan estimasi lokasi cukup akurat dengan mendeteksi keberadaan dan lokasi user yang selalu berubah. Pada penelitian ini, diujikan performa algoritma MUSIC untuk estimasi keberadaan user. Hasil simulasi menunjukan bahwa peningkatan akurasi dapat dicapai dengan meningkatnya jumlah antena, spacing antar elemen sebesar 0.5 lambda. Banyaknya user tidak berpengaruh pada akurasi dari algoritma MUSIC.
ANALISA PENGARUH RANGSANGAN AROMATERAPI LAVENDER DAN KAYU CENDANA TERHADAP KUALITAS TIDUR BERBASISKAN GELOMBANG EEG
Authors: Fauzan Alyani Durrah , Lailiyya Nushrotul , Esti Kusumandari Dwi , Yosef Suratman Fiky
Published: October 2019

Abstrak

Tidur merupakan aktivitas yang penting bagi tubuh. Aktivitas tidur membantu tubuh untuk menyembuhkan sel-sel yang rusak dan meningkatkan sistem kekebalan tubuh. Tetapi banyak dari kita yang tidak mendapatkan kualitas tidur yang baik untuk menerima manfaat tersebut. Demi meningkatkan kualitas tidur, sebagian besar masyarakat percaya bahwa penggunaan aromaterapi dapat membuat tubuh lebih rileks dan membantu penggunanya tidur lebih lelap. Paper ini melakukan studi mengenai ada tidaknya pengaruh aromaterapi terhadap kualitas tidur dengan memanfaatkan sinyal biopotensial pada otak, yaitu electroencephalogram (Sinyal EEG). Sinyal EEG didapatkan dari proses akuisisi menggunakan Mitsar-EEG-202 dan Software WinEEG. Selanjutnya, sinyal EEG akan dibaca secara visual berdasarkan bentuk, frekuensi, amplitudo, dan lokasi. Proses pembacaan sinyal akan menghasilkan nilai latensi tidur, durasi fase tidur (NREM dan REM), dan WASO. Data-data tersebut akan diuji secara manual (menghitung efisiensi tidur) per individu dan statistik (uji kesamaan dua rata-rata dan uji kesamaan dua varians). Hasil analisis secara statistik menunjukkan bahwa tidak adanya pengaruh yang signifikan antara subjek yang diberi stimulus aromaterapi terhadap subjek tanpa stimulus. Sedangkan pada analisis per individu, kualitas tidur dengan stimulus aromaterapi lebih baik dibandingkan tanpa stimulus pada beberapa subjek. Jika dihitung secara rata-rata, stimulus aromaterapi lavender dan kayu cendana dapat menaikkan efisiensi tidur, namun tidak signifikan.
ANÁLISE DO COMPORTAMENTO MECÂNICO DE CONCRETO COM DIFERENTES TIPOS DE ADIÇÃO DE FIBRAS ATRAVÉS DA PROPAGAÇÃO DE ONDA DE ULTRASSOM
Authors: Da Silva Rodrigo Rogério Cerqueira , Bonfim Luis Henrique de Sampaio
Published: October 2019

A adição de fibras pode evitar fissuras em peças de concreto, podem modificar tanto as características mecânicas do concreto, tornando-o mais resistente à flexão, compressão e elasticidade, como características físicas, absorvendo temperatura, sons e não propagando umidade. As principais fibras utilizadas em concreto são as de aço (corrugadas ou com gancho), polipropileno e borracha, sendo que sua atuação pode variar de acordo com a forma e aplicações do concreto. Levando em consideração que, atualmente o método mais comum para avaliar a resistência de estruturas, seja realizado pelo método destrutivo danificando a estrutura. A fim de obter resultados através de métodos que não agridem e nem danifiquem a estrutura avaliada, o ensaio de ultrassom permite avaliar a integridade dos materiais através de pulsos ultrassônicos, permitindo confiabilidade quando associados a ensaios destrutivos. O objetivo da presente pesquisa foi analisar amostras de concreto convencional e com 2% de adição de diferentes tipos de fibras (aço, borracha e polipropileno). Com intenção de comparar a interferência das fibras nas velocidades de propagação de ondas (V), para as frequências de 45 kHz e 80 kHz e nas propriedades mecânicas do concreto através dos ensaios de resistência a compressão (fc) e módulo de elasticidade (Eci). Foram realizadas correlações entre os parâmetros obtidos por ensaios destrutivos e propagação de ondas, demonstrando que o ensaio de ultrassom é capaz de inferir na qualidade de peças de concreto.
AVALIAÇÃO DA INSALUBRIDADE EM UMA EMPRESA METALÚRGICA DE TUBULAÇÃO
Authors: Ennes Anderson Alamino , Ignacio de Lima Anderson Luiz , Monteiro da Hora Henrique Rego
Published: October 2019

Neste estudo buscou-se avaliar a insalubridade em postos de trabalho de uma empresa metalúrgica de tubulação. Trata-se de um estudo de caso, realizado em uma empresa metalúrgica de tubulação multinacional localizada no município de Campos dos Goytacazes, Rio de Janeiro. Os dados foram coletados de fonte secundária, sendo extraídos do Programa de Prevenção de Riscos Ambientais. Foram selecionados os setores onde se desenvolviam os principais processos de trabalho da empresa, sendo incluído o setor de reparo de tubos e conformação e solda de tubos. Para a análise dos dados foram utilizadas a Norma Regulamentadora n°15 e a ACGIH. Os trabalhadores foram organizados em GHE 1 e 2. Em ambos os grupos foi encontrado o risco físico (ruído e vibração). No GHE 1 foi encontrado o risco químico (poeira e fumo metálicos) e no GHE 2 o risco químico tendo como agente as poeiras metálicas. Neste estudo, não foram encontrados valores de concentração acima do limite de tolerância. Conclui-se que ambos os grupos não possuem o direito, por lei, a perceber o valor de insalubridade provenientes desses riscos.
ANALISA KEKERASAN DAN STRUKTUR MIKRO PADA CORAN LOGAM ALUMINIUM BEKAS SEPATU REM (BRAKE SOE) DENGAN PENAMBAHAN UNSUR MANGAN (Mn)
Authors: Andika Roni Andika
Published: October 2019

Saat ini pengecoran aluminium pada industri kecil banyak memanfaatkan bahan dasar aluminium bekas.  Penelitian ini dilakukan dengan menggunakan bahan dasar aluminium bekas sepatu rem. Variasi penambahan mangan(Mn) dilakukan pada saat peleburan (remelting). Mangan ditambahkan dengan 3 komposisi berbeda yaitu 0,5%Wt, 1%Wt,dan 1,2%Wt. Material hasil remelting diuji kekerasan dan dilakukan pengamatan struktur mikro untuk mengetahui pengaruh penambahan mangan. Hasil penelitian menunjukan bahwa penambahan mangan hingga 1%Wt menurunkan kekerasan, namun penambahan  kembali meningkatkan meningkat pada penambahan mangan 1,2%Wt. Pada material hasil remelting memperlihat kan adanya porositas yang di sebabkan oleh karena mangan tidak mengisi ruang-ruang kosong dalam struktur mikro.
A Universal Porous Adsorbent for the Selective Capture of Carbon Dioxide
Authors: Taheri Qazvini Omid , Telfer Shane G.
Published: October 2019

Efficient and sustainable methods for carbon dioxide (CO2) capture are essential. Its atmospheric concentration must be reduced to meet climate change targets, and its removal from sources such as chemical feedstocks is vital. While mature technologies involving chemical reactions that absorb CO2 exist, they have many drawbacks. Porous materials with void spaces that are complementary in size and electrostatic potential to CO2 offer an alternative. In these materials, the molecular CO2 guests are trapped by noncovalent interactions, hence they can be recycled by releasing the CO2 with a low energy penalty. Capacity and selectivity are the twin challenges for such porous adsorbents. Here, we show how a metal-organic framework, termed MUF-16 (MUF = Massey University Framework), is a universal adsorbent for CO2 that sequesters large quantities of CO2 from a broad palette of gas streams with record selectivities over competing gases. The crystallographically-determined position of the CO2 molecules captured in the framework pores illustrate how complementary noncovalent interactions envelop CO2 while repelling other guest molecules. The low affinity of the pore environment for other gases underpins the strikingly high selectivity of MUF-16 for CO2 over methane, nitrogen, hydrogen, acetylene, ethylene, ethane, propylene and propane. Breakthrough gas separations under dynamic conditions benefit from short time lags in the elution of the weakly-adsorbed component to deliver a repertoire of high-purity products. MUF-16 is an inexpensive, robust, recyclable adsorbent that is universally applicable to the removal of CO2 from sources such as natural gas, syngas, flue gas and chemical feedstocks.
Development and Comparison of Formula Assignment Algorithms for Ultrahigh-Resolution Mass Spectra of Natural Organic Matter
Authors: Fu Qing-Long , Fujii Manabu , Riedel Thomas
Published: October 2019

Increasing number of application of ultrahigh-resolution mass spectrometry (UHR-MS) to natural organic matter (NOM) characterization requires an efficient and accurate formula assignment from a number of mass data. Herein, we newly developed two automated batch codes (namely TRFu and FuJHA) and assessed their formula assignment accuracy together with frequently used open access algorithms (i.e., Formularity and WHOI). The overall assignment accuracy for the NOM-like 8,717 chemicals with known molecular formulae (mass range from 68 Da to 1,000 Da) was highest (94%) for TRFu. Comparative examination using 35 NOM mass spectrum data sets (totally 78,482 peaks with m/z range of 69 to 999) revealed that TRFu, FuJHA and Formularity had superior performance (e.g., high formula assignment ratios and lower mass errors) compared to WHOI, though the performance was depending on mass values and molecular compositions. Moreover, among all methods, TRFu showed smallest deviation from certified data in the 13C-formula assignment analysis. Therefore, as a reliable and practically feasible tool, the automated batch TRFu can precisely characterize UHR-MS spectra of various NOM and could be extended to the non-target screening of NOM-like emerging chemicals in natural and engineered environments.
Electra, de Eurípides.
Authors: Rocha Roosevelt
Published: October 2019

Tradução da peça Electra, de Eurípides.
Continuum performativo, performance e teatro musical : um estudo a partir da vida e obra de Tim Rescala
Authors: Perotto Leonardo Luigi
Published: October 2019

O presente artigo apresenta um pequeno recorte de minha pesquisa de doutorado, onde me aprofundo sobre a vida e a obra de Tim Rescala desde o conceito do continuum performativo. Tomo como eixo principal o diálogo e o debateentre minhas condutas enquanto artista relacionadas aos artistas pesquisados, explicando a partir disso o que significa a teoria do continuum performativo e sua aplicação. Após este primeiro momento, realizo uma análise do continuum performativo de Tim Rescala, tecendo apontamentos de temas transversais relativos às suas formas de experiência, de ações, performances e condutas cotidianas que vão o levar a significar sua existência e, consequentemente, seus processos criativos.
Zinc status of riverside populations of the rivers Solimoes and Negro in the state of Amazonas, Brazil
Authors: Shrimpton Roger , Marinho Helyde
Published: October 2019

Zinc nutrition has been shown to be critically limiting among urban populations of the central Amazon valley, but no information on the zinc status of rural populations has been published. Nutrition surveys were carried out on the river Solimoes and the river Negro in years 1976/7. Hair samples collected at that time were analysed for their zinc content, by Atomic Absorption Spectrophotometry. The mean hair zinc value of children aged under seven years from the river Negro (140 µg/g) was about one third lower than hair values from the river Solimoes (204 µg/g) with high statistical significance (p< 0.001). Hair zinc levels were influenced by a variety of non-dietary conditions in these riverine children populations, including anthropometric classifications and gastrointestinal parasites, and these are discussed. The significantly lower hair zinc levels in children on the river Negro than in children on the river Solimoes may be part of the reason why young child stunting rates are higher on the river Negro. The importance of zinc status for reproduction is also discussed, especially the evidence for relationships to still teratogenesis and still births, the latter being six times more common among mothers on the river Negro than among those on the Solimoes at that time. Although no indicators of maternal zinc status were measured, the findings of zinc deficiency in their young children support the hypothesis that these mothers were also suffering from zinc deficiency. It also suggests poor zinc status may be associated with the lower population densities found along the banks of the river Negro as compared to that of the river Solimoes. The situation seems unlikely to have improved in the forty years since these observations were made and may even be getting worse. Interventions are suggested that would allow this type of situation to be remedied.
Needs Analysis of Training Web Exe CMS (Content Management System) and Arduino “Two In One” For Physics Teacher
Authors: Pratiwi Umi
Published: October 2019

Most of physics teachers in Purworejo Regency use conventional teaching media. This is due to the lack of understanding and information about the latest It-based teaching media. They need new breakthroughs and methods to improve the quality of physics learning, especially those related to the development of teaching media. Therefore CMS (Content Management System) web exe and Arduino-based training needs analysis are conducted for Purworejo Regency physics teachers. This effort are tested by research descriptions are by giving questionnaires to respondents. The results showed that Purworejo district physics teachers needed continuous and periodic training with guided monitoring and needed training related to the latest IT-based teaching media such as e learning and microcontroller-based teaching media such as Arduino.
A Simple Matrix Approach to Determination of the Helium Atom Energies
Authors: Pingak Redi Kristian , Kolmate Rosara , Bernandus Bernandus
Published: October 2019

Calculation of He atomic energy levels using the first order perturbation theory taught in the Basic Quantum Mechanics course has led to relatively large errors. To improve its accuracy, several methods have been developed but most of them are too complicated to be understood by undergraduate students. The purposes of this study are to apply a simple matrix method in calculating some of the lowest energy levels of He atom (1s2, triplet 1s2s, and singlet 1s2s states) and to reduce errors obtained from calculations using the standard perturbation theory. The convergence of solutions as a function of the number of bases is also examined. The calculation is done analytically for 3 bases and computationally with the number of bases using MATHEMATICA. First, the 2-electron wave function of the Helium atom is written as the multiplication of two He+ ion wave functions, which are then expanded into finite dimension bases. These bases are used to calculate the elements of the Hamiltonian matrix, which are then substituted back to the energy eigenvalue equation to determine the energy values of the system. Based on the calculation results, the error obtained for the He ground state energy using 3 bases is 2.51 %, smaller than the errors of the standard perturbation theory (5.28 %). Despite the fact that the error is still relatively large from the analytical calculations for singlet-triplet 1s2s energy splitting of He atom, this error is successfully reduced significantly as more bases were used in the numerical calculations. In particular, for n = 25, the current calculation error for all states is much smaller than the errors obtained from calculations using standard perturbation theory. In conclusion, the analytical calculations for the energy eigenvalue equation for the 3 lowest states of the Helium atom using 3 bases have been carried out. It was also found in this study that increasing the number of bases in our numerical calculations has significantly reduced the errors obtained from the analytical calculations.
Understanding by Design (UbD) for the Physics Learning about Parabolic Motion
Authors: Kuntari Fransiska Retno , Rondonuwu Ferdy Semuel , Sudjito Debora Natalia
Published: October 2019

In general, in preparing the lesson, teachers determine some components namely learning objectives, procedures, and evaluation and assessment instruments. Several problems in Physics learning on Parabolic Motion indicate possible flaws from the three components in designing the lesson. Understanding by Design (UbD) is applied as one of the alternative strategies to improve the lesson quality by considering the learning objectives, procedures, and evaluation by reversing the design, namely proposing the objectives first, evaluations as the second, and lesson steps as the last step. This is a qualitative research intended to construct an alternative design of Physics learning on Parabolic Motion using UbD. The initial Physics learning design was reviewed and analyzed by experts and revised until the final design. Understanding by Design (UbD) could be used as an alternative design construction as it helps teachers to relate the three main components, namely learning objectives, evaluations, and steps so it eased the students understand the materials comprehensively and obtain maximum score. Despite the development of current materials needs more improvement, Understanding by Design (UbD) can applied for many materials.
Disposisi Berpikir Terbuka secara Aktif: Definisi, Pengukuran, dan Kaitannya dengan Prestasi Akademik
Authors: Aditomo Anindito
Published: October 2019

This study seeks to evaluate the validity of a scale intended to measure actively open-minded thinking (AOT), and to explore whether AOT can predict academic performance. The Rasch model was applied to evaluate the scale’s construct validity through the mirt package in R. Scale validation was based upon a sample of university students in Surabaya (N=424), while regression analysis to predict academic achievement was based on a sub-sampel for which data was available (n=220). Rasch analysis results suggested that the 10-item self-report scale had good construct validity, especially when measuring participants from the lower end of the trait level spectrum. AOT was found to be positively and moderately correlated with conscientiousness and openness to experience. AOT also predicted higher performance in a course which assessed students’ ability to analyse and evaluate arguments, as well as overall performance assessed by their grade point average (GPA) 18 months later. These results suggest that AOT is an important variable that can be adequately measured using a self-report instrument. Further work should focus on creating items which are more difficult to endorse.Keywords: Thinking disposition, intellectual character, item-response theory, Big 5 personality, academic achievement Abstrak: Penelitian ini bertujuan mengevaluasi validitas sebuah skala disposisi berpikir terbuka secara aktif, serta mengeksplorasi kaitan disposisi tersebut dengan prestasi akademik. Validasi skala dilakukan pada sampel mahasiswa sebuah universitas di Surabaya (N=424), sedangkan regresi untuk memprediksi prestasi akademik dilakukan pada sub-sampel (n=220). Validasi dilakukan dengan model Rasch menggunakan paket mirt di program R. Hasil pemodelan Rasch menunjukkan bahwa skala disposisi berpikir terbuka-aktif memiliki validitas konstruk yang baik, terutama untuk sampel dengan tingkat disposisi yang rendah. Disposisi berpikir terbuka-aktif juga terbukti berkorelasi positif moderat dengan dimensi kepribadian openness to experience dan conscientiousness. Selain itu, disposisi tersebut juga terbukti memprediksi prestasi belajar pada mata kuliah yang mengukur kemampuan analisis/evaluasi argumen, serta pada indeks prestasi secara keseluruhan 18 bulan kemudian. Dalam disimpulkan bahwa disposisi berpikir terbuka-aktif merupakan konstruk yang perlu diperhatikan oleh peneliti maupun praktisi pendidikan. Pengembangan skala perlu diarahkan pada penulisan butir-butir yang memiliki tingkat kesulitan lebih tinggi.
CURRENT REQUIREMENTS FOR THE
DEVELOPMENT AND IMPLEMENTATION
OF ELECTRONIC TEXTBOOKS IN THE
EDUCATIONAL PROCESS OF PRIMARY
SCHOOL
Authors: Iliichuk Liubomyra
Published: October 2019

One of the decisive factors in the modernization of the education system
is the creation of a new generation of learning tools that combine the
achievements of modern pedagogical science with the powerful didactic
capabilities of information technology. Therefore, the problem of
implementation of electronic educational resources into the educational
process of the elementary school, in particular, electronic textbooks
becomes of special urgency nowadays. The article summarizes the
results of the analysis of modern scientific literature regarding the
requirements for the development of electronic textbooks and the
peculiarities of their introduction to the system of general secondary
education. The essence of the concept «electronic textbook» has been
found out, its features, functions, components, as well as advantages
and risks of application in modern educational institutions have been
determined. The psychological and pedagogical, methodological and
technical requirements for electronic textbooks have been determined
and the possibility of their use in the elementary school has been
substantiated. The analysis of peculiarities of structural organization,
didactic functions and advantages of using electronic textbooks allowed
showing their effectiveness in raising the level of interest of students,
positive impact on the personal development of children, their qualitative
training in the process of learning. The author paid attention to the
importance of systematic use of electronic textbooks in the educational
process, conducted an analysis of electronic textbooks for pupils of the
New Ukrainian School. The article emphasizes the necessity of creating
electronic textbooks for a modern school, specifies the concrete steps of the state educational policy in this direction, in particular, the legal
regulation of the specified activity, as well as conducting an all-Ukrainian
experiment «An Electronic Textbook for General Secondary Education».
THE CONCEPTS OF DESIGNING
COMPETENCE IN THE CONDITIONS OF
THE MEDICAL COLLEGE ENVIRONMENT
Authors: Kirzha Nadiia
Published: October 2019

This article identifies the primary objectives of education development in
Ukraine for 2012-2021. It is established that the formation of modern
logistical support for the educational sector, support for the development
of electronic educational tools, implementation of ICT training of
teachers, ie, in general, providing the necessary prerequisites for the
modernization of the education system on an innovative technological
basis are among the top priorities. The contradictions in the field of
potential opportunities for increasing the effectiveness of the educational
process in practice are highlighted. It is determined that the educational
and information environment can be called distributed on the territorial
and level principle of the mastery of information and educational spaces,
which aims to create conditions conducive to the emergence and
progress in the processes of educational and network relationships
between objects and entities environment, and to shape the activity of
objects, to stimulate educational and social initiatives so that competence
develops as a significant value for both society and the individual. It has
been found out that the application of step-by-step integration of OIs can
contribute to the natural formation and development of educational and
information environment with the direct participation of teaching staff. In
this case, the conceptual cascade-loop diagram illustrates the system of
interconnections between each of the main elements (stages) of this
process. The factors that led to a significant expansion of the scope of
electronic resource in the educational process have been identified. A
number of designing skills necessary for the formation of a design
competency in the teacher were identified, the structure of which
includes the knowledge, skills and professionally significant personality
qualities required for the design activity. The requirements for the
organization and preparation of medical college students for the development of electronic educational resources are defined. It is found
that the introduction of the latest information and communication
technologies in the educational process has led to significant changes in
the didactic system. It is proved that mobility determines the success of
each of the graduates in the conditions of the digital and technological
society, the possibility of effective cooperation, solving
STRUCTURE OF THE INFORMATION EDUCATION ENVIRONMENT AND ITS USE IN PREPARATION OF FUTURE EDUCATION PROFESSIONALS
Authors: Danylyshyna Kateryna
Published: October 2019

The article analyzes the definition of information educational environment by national and foreign scientists, on the basis of which the author defines the specified concept; structural blocks, functions, principles, components of the information educational environment are analyzed; the structure of information educational environment of Vinnytsia State Pedagogical University named after Mikhail Kotsyubynsky and the possibility of its use in the process of formation of information competence of future teacher of professional training are considered; the structure of the main page of the University site is described, the its sections and their purpose are characterized, the view of the site of the electronic library of the educational establishment is characterized, its structure and purpose are characterized, the structure of the information and educational portal of the Department of Innovative and Information Technologies in Education, Educational and Scientific Institute of Psychology, training of highly qualified specialists were reviewed. Based on the analysis of scientific works by foreign and national scientists, the main characteristics of the informational educational environment were determined: openness, possibility of expansion, scalability, integration, adaptability, and their definitions were provided; the functions of the informational educational environment are defined: information, interactive, communication, coordinating, developmental, occupational. The scientific and pedagogical directions of formation of information educational environment are characterized: organizational, methodical, technical, resource, explanation of these principles is given. The structure and possibilities of using the educational environment are described on the example of the portal of the Chair of Innovative and Information Technologies in Education. The article also presents the results of a pedagogical study regarding the use of an informational educational environment to improve the quality of training of future vocational education teachers.
English as Lingua Franca: Exploring the Challenges and Opportunities of English Language on Vietnamese Graduate Student Learning
Authors: W. Yao Christina , E Garcia Crystal , Collins Courtney
Published: October 2019

Aim/Purpose: In this study, we explored the learning experiences of graduate students enrolled at Vietnamese-German University (VGU), a transnational collaborative university that uses English as the language for instruction that is primarily conducted by German faculty.

Background: Transnational education has gained in popularity across the globe, often with English serving as the common language, or lingua franca. However, English as lingua franca contributes to learning challenges as a result of English language dominance in academia.

Methodology: Case study methodology was used to examine the learning experiences of graduate students at Vietnamese-German University, with the institution as the case and 24 participants as the unit of analysis. Semi-structured interviews were conducted face-to-face which allowed for rich data.

Contribution: Transnational education has gained significant attention in recent years, including how language may influence operations and motivations of institutions. However, few studies exist that examine English as lingua franca at transnational universities from the student perspective. The context of Vietnam is also important as Asia is a growing region for the establishment of transnational universities.

Findings: Participants expressed that the primary reason they chose to attend VGU was because of its use of English as lingua franca. However, they experienced several challenges, particularly with technical jargon and an overall language barrier in the classroom. Participants navigated challenges with three strategies for learning: asking the professor questions, talking with peers, and using supplemental resources to understand unfamiliar concepts.

Recommendations for Practitioners: Results from this study include implications for instructors to better meet the needs of non-native English learners in the classroom, such as supporting peer engagement, group work, and engaging in pedagogical training.

Impact on Society: The findings from this study provides additional perspectives on how English as lingua franca allows for affordances and challenges for student learning at transnational universities in Vietnam. The results of this study could inform other transnational universities in Asia.

Future Research: Recommendations for future research include examining English as lingua franca from the perspectives of instructors. Additional suggestions include longitudinal studies on the outcomes of graduates’ English language learning and how English language training contributed to their employment in the global sector.