bluuebunny/crossref_metadata_2025_split huggingface dataset:
A BGK model for charge transport in graphene
Authors: Majorana Armando 
Published: August 2019

Abstract
The classical Boltzmann equation describes well temporal behaviour of a rarefied perfect gas. Modified kinetic equations have been proposed for studying the dynamics of different type of gases. An important example is the transport equation, which describes the charged particles flow, in the semi-classical regime, in electronic devices. In order to reduce the difficulties in solving the Boltzmann equation, simple expressions of a collision operator have been proposed to replace the standard Boltzmann integral term. These new equations are called kinetic models. The most popular and widely used kinetic model is the Bhatnagar-Gross-Krook (BGK) model. In this work we propose and analyse a BGK model for charge transport in graphene.
On the complexity of bounded-depth circuits and formulas over the basis of fan-in gates
Authors: Sergeev Igor' S. 
Published: August 2019

Abstract
We obtain estimates for the complexity of the implementation of n-place Boolean functions by circuits and formulas built of unbounded fan-in conjunction and disjunction gates and either negation gates or negations of variables as inputs. Restrictions on the depth of circuits and formulas are imposed. In a number of cases, the estimates obtained in the paper are shown to be asymptotically sharp. In particular, for the complexity of circuits with variables and their negations on inputs, the Shannon function is asymptotically estimated as

$2\cdot {{2}^{n/2}};$this estimate is attained on depth-3 circuits.
Sichtweisen auf Protest - Die Demonstrationen gegen den G20-Gipfel in Hamburg 2017 im Spiegel der Medienöffentlichkeit
Authors: Sommer Moritz , Teune Simon 
Published: August 2019

Zusammenfassung
Der Beitrag vergleicht die mediale Berichterstattung zu den G20-Protesten in Hamburg und zeigt so journalistische Spielräume jenseits der dominierenden Fokussierung auf Gewalt auf. Der Vergleich von sieben Tageszeitungen in Bezug auf den Umfang und Fokus der Berichterstattung, die Auswahl von Sprecher*innen, die Bewertungen und die Auseinandersetzung mit den Protestmotiven verdeutlicht den Kontrast zwischen vergleichsweise protestaffinen Zeitungen des liberalen Spektrums und dem Protest deutlich negativ gegenüberstehenden Zeitungen des konservativen Spektrums.
Emerging mechanisms of drug-induced phospholipidosis
Authors: Breiden Bernadette , Sandhoff Konrad 
Published: August 2019

Abstract
Drug-induced phospholipidosis is a lysosomal storage disorder characterized by excessive accumulation of phospholipids. Its cellular mechanism is still not well understood, but it is known that cationic amphiphilic drugs can induce it. These drugs have a hydrophilic amine head group that can be protonated in the endolysosomal compartment. As cationic amphiphiles, they are trapped in lysosomes, where they interfere with negatively charged intralysosomal vesicles, the major platforms of cellular sphingolipid degradation. Metabolic principles observed in sphingolipid and phospholipid catabolism and inherited sphingolipidoses are of great importance for lysosomal function and physiological lipid turnover at large. Therefore, we also propose intralysosomal vesicles as major platforms for degradation of lipids and phospholipids reaching them by intracellular pathways like autophagy and endocytosis. Phospholipids are catabolized as components of vesicle surfaces by protonated, positively charged phospholipases, electrostatically attracted to the negatively charged vesicles. Model experiments suggest that progressively accumulating cationic amphiphilic drugs inserting into the vesicle membrane with their hydrophobic molecular moieties disturb and attenuate the main mechanism of lipid degradation as discussed here. By compensating the negative surface charge, cationic enzymes are released from the surface of vesicles and proteolytically degraded, triggering a progressive lipid storage and the formation of inactive lamellar bodies.
Experimental and Estimation of Flashover Voltage of Outdoor High Voltage Insulators with Silica Filler Based on Grey Wolf Optimizer
Authors: Hassan Elham , Nasrat Loai , Kamel Salah 
Published: August 2019

Abstract
Epoxy is used widely in high voltage outdoor insulator because of its light weight (this avoids the need to use heavy cranes for their handling and installation and this reduces cost), easy handling, easy blending with additives, and having hydrophobicity. This paper focuses on improving epoxy electrical characteristics (flashover voltage) for high voltage outdoor insulator by adding silica filler. Composite of epoxy with silica filler: silica is prepared with 0 %, 10 %, 20 %, 30 % and 40 % weight percentages concentration. The flashover voltage (FOV) is tested under various environmental conditions with different samples lengths. Grey wolf optimizer (GWO) is developed to predict the best optimal value of flashover voltage under various environmental conditions using laboratory measurements of flashover voltage. The obtained results from GWO are compared with experimental measured data. Results showed an improvement with silica concentration at different samples lengths in flashover voltage for composite samples over epoxy without any additions. A comparison between three different conditions showed higher flashover voltage for samples in dry condition than that of samples in (wet, salt wet) conditions.
A Multi-criteria Approach for Distribution Network Expansion Through Pooled MCDEA and Shannon Entropy
Authors: Verma Mandhir Kumar , Yadav Vinod Kumar , Mukherjee Vivekananda , Ghosh Santosh 
Published: August 2019

Abstract
Power distribution network expansion planning (DNEP), based on innovative load flow analysis and optimization techniques, has drawn great attention of researchers around the world to cater for ever increasing demand of electrical power. In the present work, a new approach based on Multi-criteria Data Envelopment Analysis and Shannon Entropy analysis (MCDEA-SEA) is presented that strengthens the solution hunt process of DNEP problems. In the first stage of proposed methodology, various probable configurations are determined through load flow analysis considering different objective functions and constraints. In the next stage, large amount of complex data sets generated for various configurations from power flow perusal, then analyzed using pooled MCDEA-SEA. This multi-stage approach expedites search for best and impeccable solution, which leaves no space for sub-optimality. The efficacy of the proposed method has been verified by applying it on IEEE 33-bus test distribution system, considering impending load scenarios and the results show that the proposed methodology can effectively solve DNEP problem and provide optimal solution for DNEP problems, consuming lesser computation time compared to conventional approaches.
Inexact Newton method for the solution of eigenproblems arising in hydrodynamic temporal stability analysis
Authors: Demyanko Kirill V. , Kaporin Igor E. , Nechepurenko Yuri M. 
Published: August 2019

AbstractThe inexact Newton method developed earlier for computing deflating subspaces associated with separated groups of finite eigenvalues of regular linear large sparse non-Hermitian matrix pencils is specialized to solve eigenproblems arising in the hydrodynamic temporal stability analysis. To this end, for linear systems to be solved at each step of the Newton method, a new efficient MLILU2 preconditioner based on the multilevel 2nd order incomplete LU-factorization is proposed. A special variant of Krylov subspace method IDR2 with right preconditioning is developed. In comparison with GMRES it requires much smaller workspace while may converge considerably faster than BiCGStab. The effectiveness of the proposed methods is illustrated with matrix pencils of order up to 3.1 ⋅ 106 arising in the temporal linear stability analysis of a typical hydrodinamic flow.
Crystal structure of 9-(3-phenoxyphenyl)-3,4,6,7,9,10-hexahydroacridine-1,8(2H,5H)-dione, C25H23NO3
Authors: Huang Qian , Yuan Quan 
Published: August 2019

Abstract
C25H23NO3, monoclinic, P21/c (no. 14), a = 10.972(6) Å, b = 7.392(4) Å, c = 25.804(10) Å, β = 109.349(18)°, V = 1974.6(17) Å3, Z = 4, R
gt(F) = 0.0640, wR
ref(F
2) = 0.2381, T = 293(2) K.
Antipassive Adds an Argument
Authors: Basilico David 
Published: August 2019

AbstractIn this paper, I give an analysis of the syntax of the antipassive construction in the Eskimo-Aleut language family. In this account, I follow previous works, such as Benua (1997), Basilico (2004, 2012), Aldridge (2012), and Johns and Kučerová (2017) and posit that the antipassive, oblique argument occupies a different position than the transitive, absolutive object. However, I do not argue that the absolutive direct object argument and the oblique antipassive object occupy the same base position. Instead, I analyze the antipassive marker as an element which creates an argument position: it turns the verb to which it is attached from a predicate of events into a relation between an event and an entity, introducing the undergoer thematic role predicate and its argument. By considering that the antipassive morpheme introduces an argument, rather than saturating or demoting one, we explain a number of interesting phenomena: why ‘agentive’ verbs do not appear with an antipassive morpheme while ‘patientive’ verbs do, why the antipassive is associated with the inchoative as well as the applicative, and why transitive impersonal verbs do not undergo antipassivization.
Argument Structure of Classifier Predicates: Canonical and Non-canonical Mappings in Four Sign Languages
Authors: Kimmelman Vadim , de Lint Vanja , de Vos Connie , Oomen Marloes , Pfau Roland , Vink Lianne , Aboh Enoch O. 
Published: August 2019

AbstractWe analyze argument structure of whole-entity and handling classifier predicates in four sign languages (Russian Sign Language, Sign Language of the Netherlands, German Sign Language, and Kata Kolok) using parallel datasets (retellings of the Canary Row cartoons). We find that all four languages display a systematic, or canonical, mapping between classifier type and argument structure, as previously established for several sign languages: whole-entity classifier predicates are mostly used intransitively, while handling classifier predicates are used transitively. However, our data sets also reveal several non-canonical mappings which we address in turn. First, it appears that whole-entity classifier predicates can be used unergatively, rather than unaccusatively, contrary to expectations. Second, our data contain some transitive uses of whole-entity classifier predicates. Finally, we find that handling classifier predicates can express various complex event structures. We discuss what these findings imply for existing theories of classifier predicates in sign languages.
An exploratory study of neopterin and kynurenine pathway in pterygium
Authors: Kilicarslan Bilge , Cardak Aziz , Girgin Gozde , Kemer Ozlem Evren , Baydar Terken 
Published: August 2019

Abstract
Pterygium is an inflammatory, vascular and degenerative disorder with unknown aetiology. The aim of this study was to evaluate the changes in neopterin levels, reflecting T-cell immunity, and the kynurenine pathway, the main degradation process of tryptophan, in pterygium. For this purpose, neopterin concentrations were measured in serum and tear samples by enzyme-linked immunosorbent assay (ELISA) in pterygium patients (n=31) and control group (n=32). Kynurenine (KYN) and tryptophan (TRP) serum levels were simultaneously determined by high-performance liquid chromatography (HPLC) for evaluation of the kynurenine pathway. Serum neopterin concentrations and kynurenine to tryptophan ratio (KYN/TRP) as an index of tryptophan breakdown were found increased in pterygium compared to controls (p<0.05). Although there was a 3-fold difference observed between serum and tear neopterin levels, no significant relationship was found. It can be concluded that neopterin may be used as a nonspecific biomarker that reflects immunological activity in pterygium and has clinical potential for evaluation of pterygium pathogenesis. These immune- or inflammatory-mediated changes were also supported by an increased KYN/TRP ratio in pterygium patients.
Phospha-Michael reaction of tertiary phosphanes Ph2P–X (X=SiMe3, Cl) and N-triflyl-propiolamides
Authors: Fiore Vito A. , Maas Gerhard 
Published: August 2019

Abstract
The uncatalyzed silylphosphanylation of acetylenic N-trifluoromethylsulfonyl-carboxamides by Ph2P–SiMe3, formally an insertion of a C,C triple bond into a P–Si bond, is reported. Some characteristic functional group transformations of the resulting 3-PPh2-2-SiMe3-N-triflyl-acrylamides were briefly explored: transamidation of the N-triflylamide group with allylamine, P oxidation and protodesilylation. A hydrophosphorylation of the acetylenic triple bond with chloro(diphenyl)phosphane is also reported.
Performance Evaluation and Modification Mechanism Analysis of the Synthesized Rubber Asphalt
Authors: Lin Mei , Li Ping , Nian Tengfei , Mao Yu , Kang Xiao 
Published: August 2019

Abstract
Aiming to improve the performance of asphalt pavement in seasonal freezing regions, systematic research of rubber asphalt was conducted in macro and micro aspects. The specific rubber asphalt was synthesized according to the special requirements of the seasonal freezing regions. Moreover, the optimum dosage of rubber powder was proposed through asphalt mixture performance experiments. The macromechanical properties of the rubber asphalt under different temperatures were evaluated according to the Strategic Highway Research Program (SHRP). The composition and microstructure of the rubber asphalt were tested by using Fourier Transform Infrared Spectroscopy (FTIR) and AFM analyses. In addition, the modification mechanism of rubber asphalt was also investigated. The results showed that the optimum dosage of rubber powder for the seasonal freezing region was 20 %. The rubber asphalt with 20 % rubber powder could resist shear deformation at high temperatures as well as improve the low-temperature performance of aged asphalt. Furthermore, the macro performance was enhanced, which was related to the increments of nanoadhesion between rubber powder and asphalt. The composition and microstructure of the rubber asphalt could be affected by the swelling of the rubber particles. Therefore, it was concluded that the synthesized rubber asphalt is suitable for seasonal freezing regions.
Rheological Behavior and Thermal Conductivity of Graphite–Ethylene Glycol Nanofluid
Authors: Yashawantha K. M. , Asif Afzal , Ravindra Babu G. , Ramis M. K. 
Published: August 2019

Abstract
The rheological behavior and thermal conductivity of graphite–ethylene glycol (EG) nanofluid is investigated in this research work. The nanofluid is prepared by two-step method using polyvinylpyrrolidone as surfactant. Volume concentration (vol. %) of 0.2, 0.8, and 2 % graphite-EG nanofluid are prepared by ultrasonicating for 5 h. Initially, the effect of temperature variation from 25°C to 60°C (with a difference of every 2.5°C) on the viscosity of prepared nanofluid for different volume concentrations is studied at a fixed shear rate of 25 s−1. The effect of shear rate from 0.1 to 100 s−1 on the viscosity of nanofluid is tested at a fixed temperature of 25°C. The nanoparticle size considered for analysis of viscosity is &lt;50 nm. Viscoelastic behavior of the nanofluid with respect to change in amplitude and frequency is investigated for 0.2 vol. %. The viscosity analysis is carried out considering graphite nanoparticles of size &lt;50 nm. Later, the thermal conductivity of prepared nanofluid is investigated at a constant temperature (25°C) for nanoparticle sizes of &lt;50 and &lt;100 nm. Finally, from this complete investigation it is concluded that the viscosity of nanofluid increased slightly from 17 to 19 cP with an increase in volume concentration but decreased by 58 % with an increase in temperature. The thermal conductivity for 2 vol. % nanofluid with nanoparticle size &lt;50 nm is found to increase by 16.3 % compared with nanoparticle size &lt;100 nm.
Comparative Transcriptomic Analysis Reveals Molecular Profiles of Central Nervous System in Maternal Diapause Induction of Locusta migratoria
Authors: Jarwar Aftab Raza , Hao Kun , Bitume Ellyn Valery , Ullah Hidayat , Cui Dongnan , Nong Xiangqun , Wang Guangjun , Tu Xiongbing , Zhang Zehua 
Published: August 2019

Abstract
Egg diapause in Locusta migratoria L. (Orthoptera: Acridoidea) is believed to be influenced by maternal photoperiod. However, the molecular mechanism regulating the phenomenon of maternal diapause induction is unclear. Here we performed transcriptomic analyses from the central nervous system (CNS) of migratory locusts under long and short photoperiods to identify differentially expressed genes (DEGs) related to diapause induction. There were total of 165750 unigenes from 569491 transcripts, and 610 DEGs were obtained in S_CNS (CNS of short photoperiod treated locusts) vs. L_CNS (CNS of long photoperiod treated locusts). Of these, 360 were up-regulated, 250 were down-regulated, and 84 DEGs were found to be related to FOXO signaling pathways, including citrate cycle/TCA cycle, glycolysis/ gluconeogenesis, oxidative phosphorylation, and PI3K-Akt. The qRT-PCR validation of mRNA expression of 12 randomly selected DEGs showed consistency with transcriptome analysis. Furthermore, the takeout gene thought to be involved in circadian rhythm was cloned and used for RNAi to observe its function in maternal diapause induction. We found that the mRNA level of Lm-takeout was significantly lower in dstakeout treatments as compared to the control under both long and short photoperiods. Similarly, the offspring diapause rate was significantly higher in dstakeout treatment as compared to the control only in short photoperiod. This shows that the Lm-takeout gene might be involved in the inhibition of maternal diapause induction of L. migratoria under short photoperiods. The present study provides extensive data of the CNS transcriptome and particular insights into the molecular mechanisms of maternal effects on egg diapause of L. migratoria. As well for the future, the researchers can explore other factors and genes that may promote diapause in insect species.
SUPERVISI MANAJERIAL KEPALA MADRASAH DALAM MENINGKATKAN KEDISIPLINAN KERJA GURU
Authors: Wijaya Candra 
Published: August 2019

Tujuan penelitian ini adalah untuk mengetahui 1) Supervisi manajerial di Madrasah Aliyah Swasta Pondok Pesantren Mawaridussalam Batang Kuis; 2) Disiplin kerja Guru Madrasah; 3) Faktor pendorong dan penghambat disiplin kerja Guru Madrasah; dan 4) Implementasi supervisi manajerial dapat meningkatkan disiplin kerja Guru Madrasah. Penelitian menggunakan pendekatan kualitatif dengan metode deskriptif. Hasil penelitian ini adalah 1) Supervisi manajerial dilaksanakan oleh kepala madrasah dengan mendelegasikan tugas sepervisi kepada para wakil kepala madrasah sesuai dengan bidang masing-masing. 2) Kedisiplinan guru Madrasah cukup baik 3) Faktor pendukung peningkatan disiplin guru Madrasah bermula dari keikhlasan diri sendiri, dan juga motivasi dari atasan berupa aturan yang harus ditaati oleh guru. Sementara faktor penghambatnya lebih disebabkan adanya sebagian guru yang mengajar di madrasah ini juga kuliah ditempat yang lain sehingga kadang ditemukan keterlambatan yang masih dalam batas ditoleransi; dan 4) Implementasi supervisi manajerial ini diharapkan mampu meningkatkan kedisiplinan para guru. Sehingga dapat melaksanakan tugas dan tanggung jawabnya secara baik dan benar serta memiliki dedikasi pengabdian yang tinggi untuk mewujudkan tujuan madrasah.
SURVEI KEPUASAN MAHASISWA DAN DOSEN TERHADAP KUALITAS PELAYANAN PENDIDIKAN DENGAN PENDEKATAN SERVQUAL DI FTIK IAIN PONTIANAK TAHUN 2018
Authors: Muhtifah Lailial , Hendry Eka , Rahmatullah M , Suhardiman Suhardiman 
Published: August 2019

Fakutas Tarbiyah IAIN Pontianak melaksanakan survey kepuasan dosen dan mahasiswa terhadap kualitas pelayanan pendidikan dengan pendekatan SERVQUAL. Artikel bertujuan untuk untuk menemukan tingkat kepuasan mahasiswa dan dosen terhadap kualitas layanan, meliputi Tangibles (penampilan fisik), Reliability (keandalan), Responsiveness (tanggap), Empathy (perhatian) dan Assurance (kepastian) pada FTIK IAIN Pontianak. Secara khusus tujuan dilakukannya penelitian ini adalah sebagai upaya mengukur kepuasan dosen dan mahasiswa terhadap kualitas pelayanan pendidikan FTIK IAIN Pontianak tahun 2018. Penelitian ini dilaksanakan dengan pendekatan kuantitatif dengan metode penelitian survey dengan jumlah populasi 2410 dan sampel berjumlah 119. Teknik pengolahan data dalam penelitian ini dilakukan dengan menggunakan Microsoft Excel. Analisis data dengan menggunakan statistika deskriptif. Paper menunjukkan tingkat kepuasan mahasiswa dan dosen terhadap kualitas layanan pendidikan di 4 jurusan untuk mahasiswa ada pada tingkat zona tinggi dengan nilai 3,70, untuk dosen ada pada zona tinggi dengan nilai 4,25.
SÃO COSME E DAMIÃO, CARNAVAL E SEMANA DA CRIANÇA: OLHARES E VOZES DAS CRIANÇAS EM REGISTROS FOTOGRÁFICOS
Authors: Coll Delgado Ana Cristina , Freitas Pereira Rachel 
Published: August 2019

Nesse artigo apresentamos uma pesquisa com crianças que focalizou a participação infantil em festas populares e datas comemorativas. Analisamos os olhares e vozes das crianças acerca das festas de São Cosme e São Damião, Carnaval e Semana da Criança. No estudo da problemática dialogamos com a sociologia da infância e com outras áreas das ciências humanas.. O material empírico constituiu-se de anotações em diários de campo, entrevistas e fotografias produzidas pelas crianças. A análise com base nas fotografias e nos comentários das crianças possibilitou selecionar as principais categorias que denominamos “composições fotográficas das crianças”. São elas: as ações e comportamentos dos adultos nas festas e na pesquisa, ações que envolvem consumo, diversão, brinquedos e brincadeiras e a participação das crianças nas festas e na pesquisa. As fotografias e vozes das crianças expressam as diferenças de suas histórias pessoais, das suas culturas e experiências e relações com seus contextos. Percebemos o quanto sua participação nas festas foi facilitada ou inibida pelas condições econômicas e sociais, pelas ideologias, pelo nível de desenvolvimento social e o bem-estar delas próprias e de seus familiares.
Palavras-chave: Crianças, infância, festas, composições fotográficas;
Educação de Jovens e Adultos em privação de liberdade – escutando vozes silenciadas
Authors: Maders Sandra , Barcelos Valdo 
Published: August 2019

Este texto tem como temática central a Educação de Jovens e Adultos (EJA) em situação de Privação de Liberdade. No artigo procedemos a uma reflexão sobre a experiência de educados de jovens e adultos (alfabetização) oriundos de três instituições prisionais brasileiras. Os apenados se encontram no Regime Semi-aberto de cumprimento de pena. Foram selecionados três diálogos entre apenados e professores. Percebeu-se que ainda persiste uma visão preconceituosa de parte dos professores em relação a esses educandos; essa visão se estende, inclusive, à relevância e necessidade dessa modalidade de educação.
Palavras-chave: Educação de Jovens e Adultos – Privação de Liberdade – Vozes silenciadas