bluuebunny/crossref_metadata_2025_split huggingface dataset:
Rejection sampling of bipartite graphs with given degree sequence
Authors: Kayibi Koko K. , Samee U. , Pirzada S. , Khan Mohammad Ali 
Published: July 2019

Abstract
Let A = (a1, a2, ..., an) be a degree sequence of a simple bipartite graph. We present an algorithm that takes A as input, and outputs a simple bipartite realization of A, without stalling. The running time of the algorithm is ⊝(n1n2), where ni is the number of vertices in the part i of the bipartite graph. Then we couple the generation algorithm with a rejection sampling scheme to generate a simple realization of A uniformly at random. The best algorithm we know is the implicit one due to Bayati, Kim and Saberi (2010) that has a running time of O(mamax), where

m
=

1
2

∑

i
=
1

n

a

i

$m = {1 \over 2}\sum\nolimits_{i = 1}^n {{a_i}}

and amax is the maximum of the degrees, but does not sample uniformly. Similarly, the algorithm presented by Chen et al. (2005) does not sample uniformly, but nearly uniformly. The realization of A output by our algorithm may be a start point for the edge-swapping Markov Chains pioneered by Brualdi (1980) and Kannan et al.(1999).
Efficiency vs. The Level of Per Capita Income of Urban-Rural Municipalities in Poland
Authors: Olejniczak Jarosław 
Published: July 2019

Abstract
The basic objective of the work was to verify the hypothesis regarding the existence of the correlation between the income potential of the municipalities and the efficiency (relative) of their activity. The basis for such a hypothesis were some concerns as to the validity of the assumed system of funding territorial local governments in Poland- in particular in the area of fiscal transfers. A nonparametric method for the evaluation of relative efficiency - the DEA CCR-O was used in the research. Then the correlation between efficiency scores and local government revenues per capita was measured. The study includes 573 urban-rural municipalities in Poland in the years 2009, 2013, and 2016. As variable “input” expenditures per-capita were adopted. As “outputs”, 13 variables describing the basic areas of municipal activity were adopted. The results of the conducted analyses point to the existence of a correlation between the commune’s revenue level and the effectiveness of its functioning. In the whole of the analysed period, the correlation fluctuated around -0.34 to -0.42 for total pc revenues and -0.26 to -0.32 for pc own revenues.
Forecasting US Tourists’ inflow to Slovenia by modified Holt-Winters Damped model: A case in the Tourism industry logistics and supply chains
Authors: Dragan Dejan , Keshavarzsaleh Abolfazl , Kramberger Tomaž , Jereb Borut , Rosi Maja 
Published: July 2019

Abstract
Forecasting is important in many branches of logistics, including the logistics related to Tourism supply chains. With an increasing inflow of American tourists, planning and forecasting the US tourists’ inflow to Slovenia have gained far more importance attention amongst scholars and practitioners. This study, therefore, was conducted to forecast the American tourists’ inflow to Slovenia using one of the predictive models based on the exponential smoothing approach, namely Holt-Winters damped additive (HWDA) exponential smoothing method. The model was modified by several improvements, while the obtained results were generalized to other supply chain components. The results show that the forecasting system can predict well the observed inflow, while the methodology used to derive the model might have enriched the plethora of existing practical forecasting approaches in the tourism domain. Benchmarking demonstrates that the proposed model outperforms a competitive ARIMA model and official forecasts. The practical implications are also discussed in this paper.
A Multi-Objective Solution of Green Vehicle Routing Problem
Authors: Kabadurmuş Özgür , Erdoğan Mehmet Serdar , Özkan Yiğitcan , Köseoğlu Mertcan 
Published: July 2019

Abstract
Distribution is one of the major sources of carbon emissions and this issue has been addressed by Green Vehicle Routing Problem (GVRP). This problem aims to fulfill the demand of a set of customers using a homogeneous fleet of Alternative Fuel Vehicles (AFV) originating from a single depot. The problem also includes a set of Alternative Fuel Stations (AFS) that can serve the AFVs. Since AFVs started to operate very recently, Alternative Fuel Stations servicing them are very few. Therefore, the driving span of the AFVs is very limited. This makes the routing decisions of AFVs more difficult. In this study, we formulated a multi-objective optimization model of Green Vehicle Routing Problem with two conflicting objective functions. While the first objective of our GVRP formulation aims to minimize total CO
2 emission, which is proportional to the distance, the second aims to minimize the maximum traveling time of all routes. To solve this multi-objective problem, we used ɛ-constraint method, a multi-objective optimization technique, and found the Pareto optimal solutions. The problem is formulated as a Mixed-Integer Linear Programming (MILP) model in IBM OPL CPLEX. To test our proposed method, we generated two hypothetical but realistic distribution cases in Izmir, Turkey. The first case study focuses on an inner-city distribution in Izmir, and the second case study involves a regional distribution in the Aegean Region of Turkey. We presented the Pareto optimal solutions and showed that there is a tradeoff between the maximum distribution time and carbon emissions. The results showed that routes become shorter, the number of generated routes (and therefore, vehicles) increases and vehicles visit a lower number of fuel stations as the maximum traveling time decreases. We also showed that as maximum traveling time decreases, the solution time significantly decreases.
The application of AHP in the development of a taxonomy of merchant marine deck officers’ non-technical skills (NTS)
Authors: Saeed Farhan , Bury Alan , Bonsall Stephen , Riahi Ramin 
Published: July 2019

Abstract
The importance of NTS has been realised in many safety critical industries. Recently the maritime domain has also embraced the idea and implemented an NTS training course for both merchant marine deck and engineering officers. NTS encompass both interpersonal and cognitive skills such as situational awareness, teamwork, decision making, leadership, managerial skills, communication and language skills. Well-developed NTS training allow ship’s officers to recognise quickly when a problem is developing and manage the situation safely and efficiently with the available team members. As a result, the evaluation and grading of deck officers’ NTS is necessary to assure safety at sea, reduce the effects of human error on-board ships, and allow ship board operations to be performed safely. This paper identifies the skills necessary for deck officers to effectively perform their duties on the bridge of a ship. To achieve this, initially, a taxonomy of deck officers’ NTS is developed through a review of relevant literature and the conducting of semi-structured interviews with experienced seafarers. Subsequently, NTS weighting data is collected from experienced seafarers to allow the weight of each element of the taxonomy to be established by the use of the Analytical Hierarchy Process (AHP).
Effects of the type of biomass and ashing temperature on the properties of solid fuel ashes
Authors: Horák Jiří , Kuboňová Lenka , Dej Milan , Laciok Vendula , Tomšejová Šárka , Hopan František , Krpec Kamil , Koloničný Jan 
Published: July 2019

Abstract
Ashes were prepared by annealing selected types of solid fuels (biomass: corn cobs, sunflower husks, olive pomace, hay pellets and rice husks; coal: lignite and bituminous; and alternative fuel: paper sludge) at different temperatures (550°C, 815°C and 975°C). Based on X-ray fluorescence spectra, the slagging/fouling indexes were used to study the effects of the type of ash and the ashing temperature on the ash fouling and slagging properties. Slagging indexes were compared with the ash fusion temperatures. Ash fusion temperatures were measured by a LECO AF-700. The lowest deformation temperature (below 1000°C) was seen for the ashes prepared from hay pellets and corn cobs. On the other hand, the deformation temperature exceeded 1500°C for ashes prepared from paper sludge, sunflower husks and rice husks. By calculating the different slagging/fouling indexes, all the ashes exhibited slagging/fouling problems of varying degrees.
Strontium-based nanosized phosphates as anticorrosive fillers of epoxy and polyurethane coating compositions
Authors: Kowalczyk Krzysztof , Gołąbek Justyna , Przywecka Katarzyna , Grzmil Barbara 
Published: July 2019

Abstract
Anticorrosive epoxy and polyurethane coatings were compounded using zinc-free nanosized phosphates of strontium (SP) or strontium and aluminum (SAP). For comparison, a nanosized calcium aluminum ammonium phosphate (CAP) and a microsized zinc phosphate (ZP) were tested. Results of salts spray and cyclic corrosion tests revealed better anticorrosive properties of the SAP-based coatings in relation to the samples with the other Zn-free fillers or ZP. Electrochemical noise tests of uncoated steel in aqueous suspensions of the phosphates exhibited similar corrosion inhibition efficiency of the Sr-based phosphates and ZP, and worse anticorrosive features of CAP. Electrochemical impedance spectroscopy did not show better protective properties of ZP-based coatings than the samples with the Zn-free fillers.
Conversationally and Monologically-Produced Narratives: A Complex Story of Horizontal Décalages
Authors: Veneziano Edy 
Published: July 2019

AbstractTheory-of- mind-related abilities present a long development characterized by both vertical and horizontal décalages. A vertical type of décalage can be seen in children’s abilities to take into account, on a practical level, others’ intentional and mental states and use internal state terms to talk about them before they are able to succeed, at the dominant representational level of functioning, in false belief tasks. Several horizontal décalages can also be observed. It is only after success in FB tasks that children can talk about the mental states of characters in fictional stories. Moreover, ToM-related and other inferential elements are expressed earlier and more frequently in conversationally-constructed than in monologically-produced narratives. This paper examines in particular this type of horizontal décalage by comparing the types of explanations produced by eighty 6- and 7-year-old French-speaking children during a short conversational intervention (SCI) focused on the causes of the story events to those expressed in monological narratives, about the same wordless picture story, produced immediately after or before the SCI. The results confirm that children expressed more ToM-related and other inferential elements during the SCI than in the two monologically-produced narratives. However, the comparison between explanations produced during the SCI and in the immediately following monological narrative also reveals complex relations among understanding, knowing and expressing this knowledge. The reasons and the significance of the horizontal décalages found in the study are discussed.
GPR surveying method as a tool for geodetic verification of GESUT database of utilities in the light of BSI PAS128
Authors: Gabryś Marta , Kryszyn Katarzyna , Ortyl Łukasz 
Published: July 2019

Abstract
Intensified investment processes in construction have resulted in increased interest in the methods of efficient detection, verification and location of underground utility networks. In addition to the well-known pipe and cable locating equipment, which has increased its efficiency and reliability through the development of technologies, GPRs are becoming more and more popular.
This publication presents the results of the experimental research carried out with the use of GPRs manufactured by two different companies as well as the results of the verification of underground utilities in real conditions. The GPRs have worked in the mode of the real-time location of their own position using the GNSS system or robotic total stations.
The GPR (Ground Penetrating Radar) surveys performed on a test field, consisting of 9 pipes with a known position, were aimed at assessing the accuracy of their identification on echograms. The utility line location errors were determined using three different combinations between the GPR and the locating instrument. It allowed the evaluation of the possibility of using these solutions for detection, verification and location of underground utility networks in the light of the Polish legal regulations and the British specification PAS 128.
The verification in real conditions was carried out in a typical urban space, characterised by an intense occurrence of underground utilities, that is, sewage systems, gas pipelines and power cables. It was based on the GESUT database captured from the county geodetic and cartographic documentation centre. The results of the visual analysis of the materials captured with the help of two measurement systems were described in detail, however, the verification was carried out only for one set of data. The authors have presented the procedure of processing echograms and detecting the location of pipeline axes based on their vectorisation. The authors of this research paper have performed a numerical analysis of the compliance of the profiles of utility lines with the information from the base map for two variants of the GPR data integration with the coordinates. The authors of this research paper have also presented an alternative concept of capturing the profile of a utility line in the field based on the processing of GPR data in 3D – the so-called C-scan. The conclusions summarise the possible factors affecting the surveying results and the methods of eliminating sources of errors, both for the GPR and geodetic data.
The Interpretation of Null Subjects in a Radical Pro-drop Language: Topic Chains and Discourse-semantic Requirements in Chinese
Authors: Frascarelli Mara , Casentini Marco 
Published: July 2019

Abstract
Based on original data collected through an online experiment, evidence is provided in this paper that the interpretation of null subjects in a radical pro-drop language like Chinese relies on the topic criterion proposed for consistent and partial pro-drop languages (Frascarelli 2007 and Frascarelli 2018), thereby supporting the theory that the null subject parameter implies an information-structural strategy for interpretation. Nevertheless, radical Chinese shows specificities that must be integrated in this theory for a comprehensive account. In particular, even though silent topic can start chains (consistent with the topic criterion), data show a significant preference for overt and local topics as antecedents. This locality requirement thus integrates phonological visibility in a general syntactic condition (minimal overt link condition), proposing an interesting parallel with the properties shown by partial pro-drop languages (Frascarelli and Jimenez-Fernandez in press). The present investigation also contributes to outline the structural differences existing between adverbial clauses in Chinese, supporting a distinction between central and peripheral adverbial clauses (Haegeman 2012). Specifically, while temporal and conditional clauses show the properties of nonrestrictive relative clauses, this is not the case for concessive clauses, which merged as subordinate clauses in either the C-domain or the high split-TP area. Differences between temporal and conditional clauses are attributed to the presence of an overt operator in the latter, and the pre-matrix position of adverbial clauses is explained in the light of their discourse role as frame-setters (Krifka 2007).
A cross-linguistic database of phonetic transcription systems
Authors: Anderson Cormac , Tresoldi Tiago , Chacon Thiago , Fehn Anne-Maria , Walworth Mary , Forkel Robert , List Johann-Mattis 
Published: July 2019

AbstractContrary to what non-practitioners might expect, the systems of phonetic notation used by linguists are highly idiosyncratic. Not only do various linguistic subfields disagree on the specific symbols they use to denote the speech sounds of languages, but also in large databases of sound inventories considerable variation can be found. Inspired by recent efforts to link cross-linguistic data with help of reference catalogues (Glottolog, Concepticon) across different resources, we present initial efforts to link different phonetic notation systems to a catalogue of speech sounds. This is achieved with the help of a database accompanied by a software framework that uses a limited but easily extendable set of non-binary feature values to allow for quick and convenient registration of different transcription systems, while at the same time linking to additional datasets with restricted inventories. Linking different transcription systems enables us to conveniently translate between different phonetic transcription systems, while linking sounds to databases allows users quick access to various kinds of metadata, including feature values, statistics on phoneme inventories, and information on prosody and sound classes. In order to prove the feasibility of this enterprise, we supplement an initial version of our cross-linguistic database of phonetic transcription systems (CLTS), which currently registers five transcription systems and links to fifteen datasets, as well as a web application, which permits users to conveniently test the power of the automatic translation across transcription systems.
Prevalência das hepatites B e C em moradores de rua em São Luís-MA
Authors: Silva Thiago Henrique dos Santos , Calisto Mariana Martins , Carvalho Ana Carolina Macedo de , Magalhães Hilário José Cardoso , Monteiro Neto Valério , Ribeiro Enzo Eldes Costa , Sousa Mariana Maryelle Ferreira de , Pereira Domingos Magno Santos , Monteiro Silvio Gomes 
Published: July 2019

Prevalência de hepatite B e C e identificação do perfil epidemiológico de cem moradores de rua de São Luís-Maranhão. Objetivos: Caracterizar o perfil epidemiológico dos indivíduos portadores dos vírus das hepatites B e C; Analisar a prevalência e vulnerabilidade a ISTs em moradores de rua em São Luís- MA;. Métodos: Trata-se de um estudo epidemiológico do tipo transversal, descritivo-analítico de população de risco, ou seja, de moradores das ruas. O projeto foi aprovado pelo Comitê de Ética em Pesquisa da Universidade Ceuma com seguinte n° de parecer: 769.163. Resultados:. Na amostra com 105 moradores de rua de São Luis encontrou-se as seguintes prevalências: Hepatite C (3,8%) e não foi encontrado dentro do espaço amostral nenhum caso de hepatite B. Consumo de drogas: Crack(21,9%), Crack e Cocaína(40,0%), Cocaína(19,0%), Maconha(12,4%), Ignorado(6,7%). População composta em sua maioria (53,3%) por homens, (100%) heterossexuais, (59,5 %) não brancos. Conclusão: os dados obtidos demonstraram uma grande vulnerabilidade desse grupo populacional quanto as ISTs o que torna preocupante e de extrema importância a assistência a essa parcela da população de São Luis tanto no esclarecimento das medidas preventivas das ISTs quanto na detecção precoce dessas doenças que podem se manifestar de forma silenciosa tais como a Hepatite B e C impactando assim na qualidade de vida desse grupo negligenciado pelas políticas públicas.Palavras-Chave: Hepatite B; Hepatite C; Moradores de Rua; IST; Prevalência;
PRODUKSI XANTHAN GUM SKALA PENGEMBANGAN MENGGUNAKAN LIMBAH PADAT TAPIOKA
Authors: Hasan Akhmad Endang Zainal , Yulianto Aton , Noviana Ika Mulawati Purwanti , Andini Siwi Putri 
Published: July 2019

Xanthan gum merupakan polisakarida ekstra selular yang dihasilkan dari fermentasi dekstrosa oleh bakteri Xanthomonas campestris. Xanthan gum banyak digunakan dalam berbagai bidang industri sebagai stabilizer, pengental, dan pengemulsi. Dalam industri minyak, xanthan gum digunakan untuk mengentalkan lumpur pengeboran dan membawa potongan padatan akibat pengeboran kembali ke permukaan. Proses fermentasi dilakukan pada biofermentor dimana substansinya diletakkan pada waktu bersamaan. Berdasarkan pengamatan, diperoleh xanthan gum pada komposisi limbah padat tapioka tertinggi 50 g / L dan urea 5 g / L. Optimasi dengan menggunakan Metode Permukaan Respon (RSM) dengan dua variabel yaitu limbah padat tapioka sebagai sumber karbon dan urea sebagai sumber nitrogen. Berdasarkan hasil perhitungan RSM, dapat disimpulkan bahwa setiap 16 jam respon maksimal mendekati titik pusat (0,0). Model memprediksi produksi xanthan gum optimal pada komposisi konsentrasi limbah padat tapioka sekitar 30 g / L dan urea 5 g / L. Hasil antara nilai prediksi dan nilai sebenarnya menunjukkan model dalam penelitian ini layak dan efektif. Hasil uji reologi menunjukkan karakteristik produk yang baik yang didukung oleh uji FTIR yang menunjukkan spektrum yang sama antara xanthan gum dengan xanthan gum komersial.
KARAKTERISTIK ANGKUTAN OJEK SEPEDA MOTOR DI KABUPATEN SIDOARJO (Studi Kasus Angkutan Ojek Sepeda Motor di Kecamatan Candi) THE CHARACTERISTIC OF MOTOCYCLE OJEK TRANSPORT IN SIDOARJO DISTRICT (Chase Study Motocycle Ojek Transport In Candi Sub-District)
Authors: Priyambodo Priyambodo , WR Dilla Joedi 
Published: July 2019

Angkutan ojek sepeda motor muncul karena ketidakmampuan angkutan umum (angkot/angdes/bus kota) menjangkau penumpang yang berdomisili di daerah-daerah pinggiran yang jauh dari akses angkutan umum. Tujuan dari penelitian ini adalah untuk mengetahui karakteristik dan tipologi alat angkut informal ojek sepeda motor. Dengan menggunakan alat analisis statistik deskriptif kualitatif, hasil penelitian antara lain menunjukkan bahwa karakteristik angkutan ojek sepeda motor di Kecamatan Candi Sidoarjo memiliki pola pelayanan tidak sama dengan pola pergerakan angkutan umum lainnya (bemo/angkot/angdes/bus kota). Angkutan ojek sepeda motor ini tidak berjadwal serta tidak memiliki rute yang pasti. Jarak tempuh operasional ojek sepeda motor tidak terbatas dan bervariasi dengan rute-rute yang tidak terlayani oleh angkutan umum angdes/angkot/bus kota. Karakteristik pola pergerakan angkutan ojek sepeda motor berada di luar jaringan angkutan umum angkot/angdes/bus kota. Karakteristik tarif yang dikenakan kepada penumpang sesuai dengan kesepakatan antara pengojek dengan penumpang dengan proses tawar menawar.
ANALISIS PELUANG PENGGUNA JASA BERSEDIA MENGGUNAKAN JASA PELAYANAN PENGIRIMAN BARANG DOMESTIK (Studi Kasus: Service YES PT. JNE Ex. Jakarta-Jawa Timur) CHANCE ANALYSIS FOR THE SERVICES USER FOR DOMESTIC DELIVERY (STUDY CASE OF YES SERVICE PT. JNE EX. JAKARTA-EAST JAVA)
Authors: Parhusip Maria Magdalena Piolenta 
Published: July 2019

PT. Jalur Nugraha Ekakurir (JNE) sebagai perusahaan pengiriman barang menawarkan beberapa service layanan, namun seiring permasalahan kemacetan di jalan menyebabkan biaya operasional yang semakin meningkat. Hal ini menyebabkan perusahaan tersebut mengambil langkah menaikkan biaya pengiriman barang, namun harus terlebih dahulu mengetahui batas tarif yang masih dimaklumi oleh pengguna sesuai dengan kualitas pelayanannya, yang tepat sesuai dengan kebutuhan calon pengguna. Penelitian ini dilakukan dengan wawancara langsung kepada PT. JNE dan hasil kuesioner kepada pihak pengguna jasa, kemudian diolah dengan teknik state preference dan permodelan ordered probit sehingga diketahui besaran probabilitas kesediaan calon pengguna jasa di PT. JNE. Hasil penelitian menunjukkan bahwa pengguna jasa bersedia menggunakan jasa pengiriman barang apabila jasa layanan yang harus ada di PT. JNE pada service YES adalah jaminan akan uang kembali, jaminan akan barang yang rusak, packaging barang dan tarif pengiriman barang. Besaran prosentase bersedia menggunakan jasa pengiriman barang jika fasilitas pelayanan ini tidak disediakan adalah sekitar 1,3% . Prosentase tersebut akan naik menjadi 84,45% jika keberadaan jasa pengiriman barang menyediakan kebijakan dengan menaikkan layanan dalam hal jaminan akan uang kembali, jaminan akan barang yang rusak, packaging barang dan tarif pengiriman barang.