bluuebunny/crossref_metadata_2025 huggingface dataset:
Molecular dynamics simulation of hydrogen atom diffusion in crystal lattice of fcc metals
Authors: Poletaev Gennady M. , Zorya Irina V. , Novoselova Darya V. , Starostenkov Mikhail D.
Published: September 2017

The study of diffusion of hydrogen atoms in the crystal lattice of fcc metals Pd, Ni, Al, Ag was performed by the method of molecular dynamics. The diffusion characteristics of hydrogen impurity (activation energy of hydrogen atom migration and pre-exponential factor in the Arrhenius equation) in the considered metals were calculated. It is shown that the prevailing mechanism of the over-barrier hydrogen diffusion in fcc metals consists of successive migration through octahedral and tetrahedral pores. During migration, as a rule, the hydrogen atom is not delayed in tetrahedral pores.
Unlocking the Secrets of Austenite – Metallographic Detective Work in the Laboratory
Authors: Eschenbacher A. , Langer M. , Ketzer-Raichle G. , Bernthaler T. , Schneider G.
Published: September 2017

Metallographic examinations using light and electron microscopy, EBSD analysis, and X-ray diffractometry were performed on four steels with different austenite content as part of a materialography student project. The aim was to provide a qualitative and quantitative determination of the austenite content present in each case. Different color etching techniques revealed the microstructure in different contrasts, austenite and delta ferrite phases could be differentiated, and the residual austenite could be determined in overaged steel using light and scanning electron microscopy (SEM). The areas revealed by color etching with a size of only a few μm in the light microscope could be correlated in the SEM and were identified by EBSD analysis.
Microstructure Characteristics of Electrical Steel for Electrical Power Converters
Authors: Hohs D. , Schuller D. , Stein R. , Bernthaler T. , Goll D. , Schneider G.
Published: September 2017

The present paper deals with the microstructure-properties correlations of industrial electrical steel for efficient electric energy converters. The metallographic evaluation of quality is important for the understanding and the further development of this class of materials. For this purpose, a comparison between electrical steel sheets of the same quality, but from different manufacturers, was performed in terms of grain size, texture and composition.
Materialographic Microstructural Analysis during the Process Development for the Gas Phase Synthesis of Silicon Carbide
Authors: Edelbauer J. , Sinz C. , Lott O. , Nagel A. , Rimkus W.
Published: September 2017

Silicon carbide is a superior material for the manufacturing of semiconductors. This is where the project on the gaseous phase synthesis of SiC components made of carbon precursors comes in. On the basis of graphite substrates and a reaction with thermally evaporated silicon monoxide in the CVI process (chemical vapor infiltration), silicon carbide with strongly process dependent structural composition is formed. The process can be used for the coating of C substrates as well as for the manufacturing of complex components. With the help of new approaches in process development and via detailed materialographic microstructural analysis, the understanding of gaseous phase synthesis was promoted. The transition of different carbon structures in equivalent silicon carbide structures was verified.
Assessing Need for Systemwide Ramp Metering Installation Warrants
Authors: Fartash Homa , Hadi Mohammed , Xiao Yan , Wang Tao , Ponnaluri Raj
Published: September 2017

Warrants for ramp metering installation have been developed by a number of U.S. states. These warrants are generally simple and are based on the traffic, geometry, and safety conditions in the immediate vicinity of each ramp (local conditions). However, advanced applications of ramp metering use system-based metering algorithms that involve metering a number of on-ramps to address system bottlenecks. These algorithms have been proved to perform better compared with local ramp metering algorithms. This situation creates a disconnect between existing agency metering warrants to install the meters and the subsequent management and operations of the ramp meters. This study focused on assessing the need for system warrants in addition to local warrants for ramp metering installation to prevent traffic breakdown at bottleneck locations. A linear programming formulation combined with consideration of the stochasticity of bottleneck capacity was used to select the ramps to be metered on the basis of the system bottlenecks. The study found that the selection of these ramps for metering—in addition to those justified by local warrants—could delay the breakdown at the system bottleneck location and improve the performance of the freeway main line. Another important benefit of selecting ramps for metering based on system operations was its distribution of on-ramp delays because of metering of more ramps and thus to a reduction in the delay experienced on the ramps selected with the existing warrants that were based on local conditions.
Security Constrained Unit Commitment Incorporating Interline Power Flow Controller
Authors: Sreejith Sekharan , Simon Sishaj P
Published: September 2017

Security-constrained unit commitment (SCUC) problem is solved using Artificial Bee Colony (ABC) algorithm incorporating Interline Power Flow Controller (IPFC). The objective of the SCUC problem is to obtain the minimum operating cost simultaneously maintaining the system security. The SCUC problem involves unit commitment as the main problem and security-constrained Economic Dispatch (SCED) as the sub problem. The solution of the SCUC problem is also investigated during contingency with a single line outage. Binary coded artificial bee colony (BABC) is used for solving the UC problem (master problem) and real coded artificial bee colony algorithm (RABC) is used for solving the SCED sub problem. The effectiveness of the proposed methodology is tested and validated on a 6 bus system and an IEEE 118 bus test system. The effectiveness of IPFC in a power system network ensuring system security is thoroughly investigated and the results are compared with that of existing methods available in the literature.
The Early Beckett's Approach to Reality through a Textual Struggle with Rimbaud
Authors: Fukaya Kiminori
Published: September 2017

In his early career, Beckett often mentioned an aesthetic of ‘incoherent reality’, which he felt was characteristic of Arthur Rimbaud. Critics have agreed that Rimbaud influenced on Beckett in the ‘incoherent’ use of language, while the importance of the idea of ‘reality’ has yet to be explored. In this article, I attempt to elucidate Beckett's view of incoherent reality and how he formulated it through Rimbaud. The early part of my analysis, drawing on Proust, differentiates young Beckett's perspective of reality from literary symbolism and explains why he found elements of reality in Proust and Rimbaud rather than Mallarmé and W.B. Yeats. Axel's Castle by Edmund Wilson, a classical study of literary symbolism, supports this differentiation; Wilson addresses Rimbaud's social and mercantile activity, which is barely seen in other reclusive symbolists. I speculate that Beckett may have read Wilson's book because descriptions about symbolism, which are quite similar to Wilson's, are present in the notes taken by Leslie Daiken as a student of Beckett's at Trinity College Dublin. Moreover, allusions to Rimbaud in works such as ‘Enueg I’ or Mercier et Camier show how Beckett focussed on the incoherent reality and was distanced from Rimbaud's mysterious side. On the basis of these arguments, the final part of the article examines the meaning of the ‘reality of insane areas of silence’ discussed in Beckett's first novel, Dream of Fair to Middling Women, to prove that he began to diverge from Rimbaud with an aesthetic of indolence, which would shape his own view of incoherent reality.
Design Improvisation for Reduced Harmonic Distortion in a Flux Pump-Integrated HTS Generator
Authors: Kulkarni Ravichandra , Prasad Krishnamachar , Tjing Lie Tek , Badcock Rodney , Bumby Chris , Sung Hae-Jin
Published: September 2017

This paper presents a design improvisation of a flux pump-integrated 10 kW high-temperature superconducting (HTS) proof of concept generator for reduced harmonic distortion. To carry out the design improvisation, a finite element analysis (FEA) model of the 10 kW HTS generator is developed, and time-stepped magnetic transient simulations are conducted on the 2D model. The effects of stator yoke material, winding pitch factors, and load configurations on total harmonic distortion (THD) are investigated. The results showed that fibre-reinforced polymer (FRP) epoxy (G10) can be used as the stator yoke material to effectively avoid the hysteresis and eddy current losses. In addition, the study results show that for the non-conventional design of the machine, a winding pitch of 2/3 and the armature-load configuration of Star-Delta gives THD values within the standard limit defined by IEEE Standard 519-2014. The THD values indicate that the machine design configuration is suitable for the development of machines for both stand-alone and grid-connected operations, according to IEEE STD 519-2014.
Permeability Change Caused by Stress Damage of Gas Shale
Authors: Yan Chuanliang , Cheng Yuanfang , Deng Fucheng , Tian Ji
Published: September 2017

Stress damage of shale during the uniaxial loading process will cause the change of permeability. The study of stress sensitivity of shale has focused on the influence of confining pressure on shale permeability and the change of shale permeability during the loading process of axial stress is lacking. The permeability of gas shale during loading process was tested. The results show that shale damage macroscopically reflects the process of axial micro-cracks generation and expansion, and the axial micro-cracks will cause permeability change during the loading process. There is a good corresponding relationship between damage development and micro-crack expansion during the process of shale loading. The damage factor will increase in the linear elastic stage and enlarge rapidly after entering the stage of unstable micro-crack expansion, and the permeability of shale increases with the increasing of shale damage. The research results provide a reliable test basis for further analysis of the borehole instability and hydraulic fracture mechanisms in shale gas reservoirs.
Simplified Models for the Material Characterization of Cold-Formed RHS
Authors: López-Colina Carlos , Serrano Miguel , Lozano Miguel , Gayarre Fernando , Suárez Jesús
Published: September 2017

It is well known that the cold-forming process used to manufacture tubes causes an increase in both the yielding stress and the ultimate strength of the corner material in rectangular steel hollow sections. This may have a significant effect on the resistance of any structure built with those profiles. However, the mentioned material hardening can be difficult to take into account in the calculations for member design or to evaluate the connection resistance through the design formulation or when using numerical simulation models. As an attempt to face the above-mentioned problem, the present paper presents a comparison among simplified approaches that consider homogeneous material properties for the whole section. It has been carried out by comparing the results obtained from the finite element modelling of stub column tests in which the material properties based on the flat faces were considered for the whole profile.
Composite Fibers from Recycled Plastics Using Melt Centrifugal Spinning
Authors: Zander Nicole , Gillan Margaret , Sweetser Daniel
Published: September 2017

New methods are being developed to enable the production of value-added materials from high-volume, low-cost feedstocks arising from domestic recycling streams. In this work, recycled bottle-grade polyethylene terephthalate, polystyrene, and polypropylene were spun into fibers from the melt using a centrifugal spinning technique. Mono-component fibers and 50/50 blends of each polymer and a 33/33/33 blend of all three polymers were evaluated. Fiber morphology, chemistry, thermal, and mechanical properties were probed. Fiber diameters ranged from ca. 1 to over 12 µm, with polypropylene fibers having the smallest fiber diameters. Mono-component fibers were generally defect-free, while composite fibers containing polypropylene were beady. Fibers made from polyethylene terephthalate had the highest tensile strength, and the addition of polyethylene terephthalate to the other polymers improved the mechanical properties of the blends. Nano- and micro-fibers from both pure and mixed waste streams are expected to have applications in myriad areas such as ultra/micro-filtration, composites, and insulation.
Effect of Mo on Microstructures and Wear Properties of In Situ Synthesized Ti(C,N)/Ni-Based Composite Coatings by Laser Cladding
Authors: Wu Fan , Chen Tao , Wang Haojun , Liu Defu
Published: September 2017

Using Ni60 alloy, C, TiN and Mo mixed powders as the precursor materials, in situ synthesized Ti(C,N) particles reinforcing Ni-based composite coatings are produced on Ti6Al4V alloys by laser cladding. Phase constituents, microstructures and wear properties of the composite coatings with 0 wt % Mo, 4 wt % Mo and 8 wt % Mo additions are studied comparatively. Results indicate that Ti(C,N) is formed by the in situ metallurgical reaction, the (Ti,Mo)(C,N) rim phase surrounding the Ti(C,N) ceramic particle is synthesized with the addition of Mo, and the increase of Mo content is beneficial to improve the wear properties of the cladding coatings. Because of the effect of Mo, the grains are remarkably refined and a unique core-rim structure that is uniformly dispersed in the matrix appears; meanwhile, the composite coatings with Mo addition exhibit high hardness and excellent wear resistance due to the comprehensive action of dispersion strengthening, fine grain strengthening and solid solution strengthening.
Synthesis and Biological Activity of Novel O-Alkyl Derivatives of Naringenin and Their Oximes
Authors: Kozłowska Joanna , Potaniec Bartłomiej , Żarowska Barbara , Anioł Mirosław
Published: September 2017

O-Alkyl derivatives of naringenin (1a–10a) were prepared from naringenin using the corresponding alkyl iodides and anhydrous potassium carbonate. The resulting products were used to obtain oximes (1b–10b). All compounds were tested for antimicrobial activity against Escherichia coli ATCC10536, Staphylococcus aureus DSM799, Candida albicans DSM1386, Alternaria alternata CBS1526, Fusarium linii KB-F1, and Aspergillus niger DSM1957. The resulting biological activity was expressed as the increase in optical density (ΔOD). The highest inhibitory effect against E. coli ATCC10536 was observed for 7,4′-di-O-pentylnaringenin (8a), 7-O-dodecylnaringenin (9a), naringenin oxime (NG-OX), 7,4′-di-O-pentylnaringenin oxime (8b), and 7-O-dodecylnaringenin oxime (9b) (ΔOD = 0). 7-O-dodecylnaringenin oxime (9b) also inhibited the growth of S. aureus DSM799 (ΔOD = 0.35) and C. albicans DSM1386 (ΔOD = 0.22). The growth of A. alternata CBS1526 was inhibited as a result of the action of 7,4′-di-O-methylnaringenin (2a), 7-O-ethylnaringenin (4a), 7,4′-di-O-ethylnaringenin (5a), 5,7,4′-tri-O-ethylnaringenin (6a), 7,4′-di-O-pentylnaringenin (8a), and 7-O-dodecylnaringenin (9a) (ΔOD in the range of 0.49–0.42) in comparison to that of the control culture (ΔOD = 1.87). In the case of F. linii KB-F1, naringenin (NG), 7,4′-di-O-dodecylnaringenin (10a), 7-O-dodecylnaringenin oxime (9b), and 7,4′-di-O-dodecylnaringenin oxime (10b) showed the strongest effect (ΔOD = 0). 7,4′-Di-O-pentylnaringenin (8a) and naringenin oxime (NG-OX) hindered the growth of A. niger DSM1957 (ΔOD = 0).
Event-Based Sensing and Control for Remote Robot Guidance: An Experimental Case
Authors: Santos Carlos , Martínez-Rey Miguel , Espinosa Felipe , Gardel Alfredo , Santiso Enrique
Published: September 2017

This paper describes the theoretical and practical foundations for remote control of a mobile robot for nonlinear trajectory tracking using an external localisation sensor. It constitutes a classical networked control system, whereby event-based techniques for both control and state estimation contribute to efficient use of communications and reduce sensor activity. Measurement requests are dictated by an event-based state estimator by setting an upper bound to the estimation error covariance matrix. The rest of the time, state prediction is carried out with the Unscented transformation. This prediction method makes it possible to select the appropriate instants at which to perform actuations on the robot so that guidance performance does not degrade below a certain threshold. Ultimately, we obtained a combined event-based control and estimation solution that drastically reduces communication accesses. The magnitude of this reduction is set according to the tracking error margin of a P3-DX robot following a nonlinear trajectory, remotely controlled with a mini PC and whose pose is detected by a camera sensor.
Anti-Sweep Jamming Design and Implementation Using Multi-Channel Harmonic Timing Sequence Detection for Short-Range FMCW Proximity Sensors
Authors: Kong Zhijie , Li Ping , Yan Xiaopeng , Hao Xinhong
Published: September 2017

Currently, frequency-modulated continuous-wave (FMCW) proximity sensors are widely used. However, they suffer from a serious sweep jamming problem, which significantly reduces the ranging performance. To improve its anti-jamming capability, this paper analyzed the response mechanism of a proximity sensor with the existence of real target echo signals and sweep jamming, respectively. Then, a multi-channel harmonic timing sequence detection method, using the spectrum components’ distribution difference between the real echo signals and sweep jamming, is proposed. Moreover, a novel fast Fourier transform (FFT)-based implementation was employed to extract multi-channel harmonic information. Compared with the traditional band-pass filter (BPF) implementation, this novel realization scheme only computes FFT once, in each transmission cycle, which significantly reduced hardware resource consumption and improved the real-time performance of the proximity sensors. The proposed method was implemented and proved to be feasible through the numerical simulations and prototype experiments. The results showed that the proximity sensor utilizing the proposed method had better anti-sweep jamming capability and ranging performance.
La répétition au fil de Lacan
Authors: Chagneaud Christine
Published: September 2017

Lacan, séminaire après séminaire, creusera le concept de répétition : d’abord comme fait de langage, ensuite comme indice du lieu où le sujet ne peut se nommer, puis comme cause au surgissement de l’unaire. C’est avec le séminaire XI, dans le temps de l’excommunication, que le pas de Lacan sera décisif. Quittant le seul champ de la fonction signifiante, il nouera répétition et réel – tuché et automaton –, faisant de la répétition l’index du réel.
D’ériphile à Œdipe. Les fruits amers de la pédication
Authors: Lavoine Serge
Published: September 2017

Le seul personnage tragique de l’Iphigénie de Racine, Ériphile, l’est peut-être en tant qu’on peut la supposer née d’une pédication manquée d’Hélène par Thésée, de même qu’Œdipe est né d’une pédication manquée de Jocaste par Laïos. Le texte de Racine, dans sa crudité, tend à vérifier cette hypothèse.
Perioperative Blood Loss During Total Hip Arthroplasty Among Patients With Ankylosing Spondylitis
Authors: Hu Yong , Jiang Wei-Zhou , Huang Zhi-Fa , Torsha Tahsin Tarik , Yang De-Sheng , Xiao Jun
Published: September 2017

Intraoperative blood loss is frequently an overarching concern during total hip arthroplasty (THA) for patients who have ankylosing spondylitis with hip involvement. However, the factors that affect blood loss have not been identified. The goal of this study was to investigate these factors among patients with ankylosing spondylitis. Patients in the authors' department who had ankylosing spondylitis and underwent unilateral THA from 2011 to 2016 were studied retrospectively. Demographic characteristics, perioperative laboratory values, intraoperative data, transfusion rate, transfusion volume, and data on hemostatic use were collected and analyzed statistically. Multiple and univariate linear regression analyses were performed. As a result, 44 patients were eligible for inclusion in the study. Mean age was 31.7±10.6 years, and mean disease duration was 9.7±5.8 years. Mean body mass index was 21.30±3.01 kg/m2. Mean volume of blood loss during THA was 1735.19±756.04 mL. Multiple linear regression analysis showed that perioperative blood loss was positively associated with Ankylosing Spondylitis Disease Activity Score (ASDAS), fibrinogen concentration, and surgical time. Further evaluation with univariate linear regression analysis suggested that ASDAS, red blood cell transfusion, and change of hematocrit concentration from preoperatively to postoperatively were correlated with blood loss. Disease activity, allogeneic blood transfusion volume, and change of hematocrit concentration from preoperatively to postoperatively appeared to be positively associated with perioperative blood loss during THA for patients with ankylosing spondylitis. For these patients, disease activity and the potential for allogeneic transfusion should be considered carefully before surgery. [Orthopedics.2017; 40(5):e904–e910.]
A Knowledge-Based Approach to Conceptual Information Retrieval from Full Text
Authors: Syu Inien , Lang Sheau-Dong
Published: September 2017

The conventional methods of full text processing, such as pattern matching and keyword indexing, may result in waste of rich information. Recently, the knowledge-based approach has been used in natural language text processing. Unlike past generations of information retrieval systems which dealt exclusively with abstracts, title headings, and keywords, today’s intelligent information retrieval systems manipulate full texts such as technical manuals, reports, letters, and news articles. This paper discusses the design and implementation of a knowledge-based information retrieval system, concentrating on the issues of knowledge acquisition, knowledge representation, knowledge base refinement, and the information retrieval mechanism
Data Modeling for Non-Standard Data
Authors: Rose Elizabeth
Published: September 2017

This paper discusses the role of the semantic data models in addressing the concerns of non-standard data such as text, music, design information and pictures. It begins with a review of three prominent models and then discusses the general features used to compare semantic data models. Next, the evolution of database systems is considered. Descriptions of modern systems that are not transaction-oriented are provided. Finally, semantic data model features are linked to specific database environments. General research directions for the 1990’s are discussed.
The Expert’s Opinion
Authors: Dadashzadeh Mohammad
Published: September 2017

INTERVIEWEE PROFILE: Todd Willinger is database administrator at Pepsico Food Services (PFS). During his five years at PFS, he has been responsible for systems programming, capacity planning, and database administration.
Using End User Characteristics to Facilitate Effective Management of End User Computing
Authors: Amoroso Donald L.
Published: September 2017

The End-User Characteristics Matrix, a mapping of user characteristics onto four end-user taxonomies, provides a more detailed perspective on the end user as developer/operator of computer-based information systems. Understanding individual end users is probably the most critical element to effectively managing end-user computing in organizations. Yet many managers do not really understand the end user they are attempting to manage. The purpose of this paper is to develop a framework which will allow the manager of end users to identify and describe user characteristics which differentiate, define, and help us better understand the end user. Previous literature on end users is discussed where four end-user taxonomies were presented, categorizing end users according to one or more characteristics, along with empirical research which utilized those taxonomies. The Rockart and Flannery end-user taxonomy has been the most widely used framework since 1983. The most comprehensive taxonomy, Cotterman and Kumar’s User Cube, was used as the basis for definitions in this research. The end user located in the developer/operator plane, identified as the fastest growing category of end users, was investigated in depth. Empirical research in end-user computing was examined to identify the set of user characteristics. Researchers studying end-user computing can use the matrix as a starting point to visualize how past research taxonomies and empirical studies are interrelated. Practitioners, anxious to develop policies to manage EUC, can concentrate their efforts on certain user characteristics they observe to be problematic.
A Theoretical Explanation of the Evolving Role of Users in Shaping Corporate Information Systems
Authors: Tafti Mohammed H.A.
Published: September 2017

The role of users in various aspects of the corporate information systems (IS) activities has substantially changed during the short history of computer-based IS. The importance of the user role is evidenced by the mounting literature on user involvement in IS development, user satisfaction, and end-user computing. The purpose of this paper is to highlight the satisfaction literature from two disciplines, management theories and information technology, in order to provide a theoretical explanation of the changing role of users.
Microcomputer Software Piracy and Prevention Strategies
Authors: Singleton Tom , Aiken Milam , Shirani Ashraf
Published: September 2017

Software piracy has lead to huge losses for software publishers, and yet they seem to be unable to find a solution to the problem. Managers in organizations using computer software must also be aware of the problem of software piracy because of their potential legal liability. The purpose of this paper is to demonstrate the cost of piracy to software publishers and organizations that use illegal copies of software. In addition, the paper examines current alternatives available to discourage the problem and emphasizes the roll of user education as a potential solution.
Epidemiological profile of patients treated at a psychosocial care center ad III
Authors: Dias Paula Cândida da Silva , Souza Adenícia Custódia Silva e , Caixeta Camila Cardoso , Esperidião Elizabeth , Pereira Milca Severino , Vieira Maria Aparecida da Silva
Published: September 2017

This is a cross-sectional descriptive study aimed at identifying the epidemiological profile of the patients treated at a Psychosocial Care Center for Alcohol and other type III drugs.Data were collected in 2014 from the records of 519 users, using a previously prepared epidemiological form. Most of patients are men attheproductive age; with low schooling and low family income.Most make use of alcohol, have undergone previous treatments in psychiatric hospitals and attended the unit for treatment by influence of third parties, even when it is contemplated. The users of the service are people with serious social and health commitments and although they are increasing use of crack, which is the current concern of public policies, alcohol is still the drug of predilection and represents the gateway to other drugs
Unsteady Convective Flow of Hydrocarbon Magnetite Nano-Suspension in the Presence of Stretching Effects
Authors: Ram Paras , Joshi Vimal Kumar , Makinde Oluwole Daniel
Published: September 2017

This article presents a numerical investigation on the convective heat transfer behaviour of time-dependent three-dimensional boundary layer flow of nano-suspension over a radially stretchable surface. The modeled set of governing nonlinear coupled ODEs is solved using the finite difference scheme followed by the shooting technique. For understanding the effects of various physical parameters such as geothermal viscosity, stretching parameter and viscous dissipation on the flow and temperature fields, magnetite-hydrocarbon nanofluid 90G is taken. The heat transfer rate and skin frictions due to the above physical parameters are also computed. The derived results show that among these parameters, Eckert number has a dominating role in the heat transfer. After a critical value of the Eckert number, the rotating surface is no longer getting cooled, rather, it takes up heat despite the fact that the surface temperature is more than the ambient temperature.
Unsteady Mixed Convection Flow of a Reactive Casson Fluid in a Permeable Wall Channel Filled with a Porous Medium
Authors: Makinde Oluwole Daniel , Rundora Lazarus
Published: September 2017

In the current paper, we investigate the thermal decomposition in an unsteady mixed convection flow of a reactive Casson fluid in a vertical channel filled with a saturated porous medium. The channel walls are assumed to be permeable with fluid injection through the left wall and suction out of the right wall. There is heat dissipation caused by exothermic chemical reaction within the flow system. The dimensionless form of the momentum and energy equations will be solved numerically using a semi-discretization finite difference method and a fourth order Runge-Kutta-Fehlberg integration scheme. The influence of the Casson fluid parameter, the buoyancy parameter, the porous medium shape parameter, the Eckert number, the suction/injection Reynolds number, Frank-Kamenetskii parameter and the Prandtl number on velocity and temperature profiles, skin friction and Nusselt number as well as the thermal stability criteria are presented graphically and discussed quantitatively. It is revealed that increasing the Casson fluid parameter enhances the flow velocity, the fluid temperature and the skin friction but has a diminishing effect on the wall heat transfer rate. The suction/injection Reynolds number, the porous medium shape parameter and the buoyancy parameter enhance the rate of heat transfer at the channel walls.
Unsteady MHD Chemically Reacting and Radiating Mixed Convection Slip Flow Past a Stretching Surface in a Porous Medium
Authors: Eegunjobi Adetayo Samuel , Makinde Oluwole Daniel , Jangili Srinivas
Published: September 2017

This paper studies the effects of combined buoyancy forces, thermal radiation, chemical reaction, velocity slip, magnetic field and porous medium permeability on unsteady mixed convection flow of electrically conducting fluid past a stretching sheet embedded in a porous medium. Appropriate governing equations are procured and also reduced to set of nonlinear coupled ordinary differential equations by means of suitable similarity transformations. The boundary valued problem is numerically tackled using the fourth-fifth order Runge-Kutta-Fehlberg integration approach with shooting outline. Various controlling parameters effects on the fluid velocity, temperature and kinds concentration profiles together with local skin friction, Nusselt number and Sherwood number are presented diagrammatically and deliberated upon quantitatively. It is found that buoyancy forces increment enhance both heat and mass transfer rate while thermal and concentration boundary layer denseness diminished.
Proceedings of the 37th National Congress of the Italian Society of Histochemistry
Authors: Editors Guest
Published: September 2017

Guest Editors: Giuseppe Anastasi, Domenico Puzzolo

Proceedings of the 37th National Congress of the Italian Society of Histochemistry
Developing product quality standards for wheelchairs used in less-resourced environments
Authors: Mhatre Anand , Martin Daniel , McCambridge Matt , Reese Norman , Sullivan Mark , Schoendorfer Don , Wunderlich Eric , Rushman Chris , Mahilo Dave , Pearlman Jon
Published: September 2017

Background: Premature failures of wheelchairs in less-resourced environments (LREs) may be because of shortcomings in product regulation and quality standards. The standards published by the International Organization for Standardization (ISO) specify wheelchair tests for durability, safety and performance, but their applicability to products used in the rugged conditions of LREs is unclear. Because of this, wheelchair-related guidelines published by the World Health Organization recommended developing more rigorous durability tests for wheelchairs.Objectives: This study was performed to identify the additional tests needed for LREs.Methods: First, a literature review of the development of ISO test standards, wheelchair standards testing studies and wheelchair evaluations in LREs was performed. Second, expert advice from members of the Standards Working Group of the International Society of Wheelchair Professionals (ISWP) was compiled and reviewed.Results: A total of 35 articles were included in the literature review. Participation from LREs was not observed in the ISO standards development. As per wheelchair testing study evidence, wheelchair models delivered in LREs did not meet the minimum standards requirement. Multiple part failures and repairs were observed with reviewed field evaluation studies. ISWP experts noted that several testing factors responsible for premature failures with wheelchair parts are not included in the standards and accordingly provided advice for additional test development.Conclusion: The study findings indicate the need to develop a wide range of tests, with specific tests for measuring corrosion resistance of the entire wheelchair, rolling resistance of castors and rear wheels, and durability of whole wheelchair and castor assemblies.
Test–retest reliability and construct validity of the Aspects of Wheelchair Mobility Test as a measure of the mobility of wheelchair users
Authors: Rispin Karen L. , Huff Kara , Wee Joy
Published: September 2017

Background: The Aspects of Wheelchair Mobility Test (AWMT) was developed for use in a repeated measures format to provide comparative effectiveness data on mobility facilitated by different wheelchair types. It has been used in preliminary studies to compare the mobility of wheelchairs designed for low-resource areas and is intended to be simple and flexible enough so as to be used in low-technology settings. However, to reliably compare the impact of different types of wheelchairs on the mobility of users, a measure must first be a reliable and valid measure of mobility.Methods: This study investigated the test–retest reliability and concurrent validity for the AWMT 2.0 as a measure of mobility. For reliability testing, participants in a low-resource setting completed the tests twice in their own wheelchairs at least one week apart. For concurrent validity, participants also completed the Wheelchair Skills Test Questionnaire (WST-Q), a related but not identical validated assessment tool.Results: Concurrent validity was indicated by a significant positive correlation with an r value of 0.7 between the WST-Q capacity score and the AWMT 2.0 score. Test–retest reliability was confirmed by an intraclass correlation coefficient greater than 0.7 between the two trials.Conclusion: Results support the preliminary reliability and validity of the AWMT 2.0, supporting its effectiveness in comparing the mobility provided by different wheelchair types. This information can be used to enable effective use of limited funds for wheelchair selection at individual and organisational scales.
Элементарные преобразования систем уравнений над квазигруппами и обобщенные тождества
Authors: Polin Sergei Vladimirovich
Published: September 2017

Рассматриваются уравнения, левая часть которых является суперпозицией операций из заданных множеств ${{\mathbf{S}}_1},...,{{\mathbf{S}}_n},... $ квазигрупповых операций. Для таких систем описаны элементарные преобразования, позволяющие перейти к эквивалентной системе уравнений, в которой все уравнения, кроме одного, не зависят существенно от неизвестного ${x_n} $. Класс систем называется гауссовым, если каждая вновь построенная система принадлежит к рассматриваемому классу. Ясно, что для гауссовых классов систем уравнений существует эффективный алгоритм решения. В связи с этим возникает вопрос об условиях гауссовости класса. В настоящей работе показано, что для гауссовости класса необходимо, чтобы операции из множеств ${{\mathbf{S}}_i} $ удовлетворяли тождеству обобщенной дистрибутивности. В дальнейшем предполагается изучить множества операций, удовлетворяющих этому условию.
Decorrelation scales for Arctic Ocean Hydrography. Part I: Amerasian Basin
Authors: Sumata Hiroshi , Kauker Frank , Karcher Michael , Rabe Benjamin , Timmermans Mary-Louise , Behrendt Axel , Gerdes Rüdiger , Schauer Ursula , Shimada Koji , Cho Kyoung-Ho , Kikuchi Takashi
Published: September 2017

Abstract. Abstract. Any use of observational data for data assimilation requires adequate information of their representativeness in space and time. This is particularly important for sparse, non-synoptic data, which comprise the bulk of oceanic in-situ observations in the Arctic. To quantify spatial and temporal scales of temperature and salinity variations, we estimate the autocorrelation function and associated decorrelation scales for the Amerasian Basin of the Arctic Ocean. For this purpose, we compile historical measurements from 1980 to 2015. Assuming spatial and temporal homogeneity of the decorrelation scale in the basin interior (abyssal plain area), we calculate autocorrelations as a function of spatial distance and temporal lag. The examination of the functional form of autocorrelation in each depth range reveals that the autocorrelation is well described by a Gaussian function in space and time. We derive decorrelation scales of 150~200 km in space and 100~300 days in time. These scales are directly applicable to quantify the representation error, which is essential for use of ocean in-situ measurements in data assimilation. We also describe how the estimated autocorrelation function and decorrelation scale should be applied for cost function calculation in a data assimilation system.
Creating a “Vocabulary of Rupture” Following WWII Sexual Violence in Hungarian Women Writers’ Narratives
Authors: Schwartz Agatha
Published: September 2017

In this paper, Schwartz analyses three narratives by Hungarian women writers— Alaine Polcz’s Asszony a fronton (A Wartime Memoir), Judit Kováts’s Megtagadva [‘Denied’] and Fanni Gyarmati Miklósné Radnóti’s Napló [‘Diary’]—with regard to their representation of the rapes of Hungarian women by Red Army soldiers during WWII. Schwartz examines to what degree the rapes are positioned as a “rupture” in the first person narrators’ lives, and how the three narratives offer elements of a “vocabulary of rupture” (Butalia 2000) so as to work through traumatic memory and thus come to terms with both the short-term and long-term effects of trauma and social stigmatization. Even though the narratives eschew a black-and-white portrayal of the rapists, an orientalist stereotying is nonetheless present. Schwartz concludes with Avery Gordon that these and other rape narratives can be read as part of the process of settling the ghosts of a still unresolved past violence yet beyond simple ideological binaries along the victim-perpetrator line.
Sipos, János and Ufuk Tavkul. 2014. Karachay-Balkar Folksongs. Budapest: Institute for Musicology of the Research Center for the Humanities, Hungarian Academy of Science, L’Harmattan. 424 pp. Maps, transcriptions.
Authors: Rappaport Dana
Published: September 2017

Sipos, János and Ufuk Tavkul. 2014. Karachay-Balkar Folksongs. Budapest: Institute for Musicology of the Research Center for the Humanities, Hungarian Academy of Science, L’Harmattan. 424 pp. Maps, transcriptions.
Virginás, Andrea, ed. 2016. Cultural Studies Approaches in the Study of Eastern European Cinema: Spaces, Bodies, Memories. Cambridge, UK: Cambridge Scholars Publishing. 291 pp. Illus.
Authors: Tőke Lilla
Published: September 2017

Virginás, Andrea, ed. 2016. Cultural Studies Approaches in the Study of Eastern European Cinema: Spaces, Bodies, Memories. Cambridge, UK: Cambridge Scholars Publishing. 291 pp. Illus.
The Pushkin Myth and Cult in Central European Literature: Gyula Krúdy’s A vörös postakocsi [‘The Crimson Coach’] (1913)
Authors: Kalavszky Zsófia
Published: September 2017

While the myth and cult surrounding Pushkin are phenomena unique to Russian culture, during the nineteenth and twentieth centuries both were prevalent in Central European literatures as well, albeit to a lesser extent and intensity. For example, within Central Europe Pushkin’s biographical myth has generated several literary sujets within the literary traditions of Hungary, Poland, or Serbia, for example. Once Pushkin’s works had been translated into the region’s national languages, some cultic manifestations surrounding the poet also appeared. My study unravels the exciting process in which a work by the Hungarian author, Gyula Krúdy, expropriates and rewrites the Pushkin myth, thereby placing this Russian national icon into a Central European cultural, historical and linguistic context. In contrast to the analytical methods generally applied to literary cult research, I argue that examining Krúdy underscores the possibility that some literary works require an approach based on poetic analysis, a technique not generally applied to literary cult research. It is my intent to trace the influence Pushkin’s cult had on Krúdy’s text via cultural poetics.
Forgács, Éva. 2016. Hungarian Art: Confrontation and Revival in the Modern Movement. Los Angeles: DopppelHouse Press.
Authors: Botar Oliver A. I.
Published: September 2017

Forgács, Éva. 2016. Hungarian Art: Confrontation and Revival in the Modern Movement. Los Angeles: DopppelHouse Press.
Zsadányi, Edit. 2015: Gendered Narrative Subjectivity: Some Hungarian and American Women Writers. Frankfurt am Main: Peter Lang. 149 pp.
Authors: Schwartz Agatha
Published: September 2017

Zsadányi, Edit. 2015: Gendered Narrative Subjectivity: Some Hungarian and American Women Writers. Frankfurt am Main: Peter Lang. 149 pp.
A Distributed Morphology-Based Study on Verb Derivation in Japanese
Authors: Li Wenchao
Published: September 2017

This study uncovers Japanese verb derivation based upon the approach ‘distributed morphology’, conveying three ways of deriving a transitive (vt) or an intransitive verb (vi) in Japanese: (a) derived from the same adjective stem; (b) adding a morpheme that indicates vt or vi properties to a stem; and (c) verbalising a loanword or a Japanese-originated lexicon. In terms of deriving vt and vi from the same adjective stem, there is a semantic compositionality between the stem and the later added morphemes. Syntactically, the category of the derived vt and vi is established after the merger. In the second method of verb derivation, four pairs of vt/vi morphemes are confirmed: ‘-ø- (-u)’; ‘-e-’/ ‘-ar-’; ‘-ø-(-u)’ / ‘-e-’; ‘-ø-(-u)’; ‘-os-(-osu)’; ‘-as-(-asu)’ / ‘-i-’; ‘-as-(-asu)’; ‘-s- (-su)’ / ‘-e-’. Furthermore, three verbalisers, ‘る’, ‘する’ and aspect ‘ってる’, participate in the third type of verbalisation and, most essentially, the category of the base is not limited to nouns, but extends to mimetics and phrases. A proposal to treat these variations is put forward: the syntactic category of Japanese vt and vi are not predetermined. Verb derivation is a completely syntactic operation. The derivations, however, split into two paths: the process by which vt and vi derive from the same adjective stem is a case of ‘word-derivation’, and the process by which a verb is derived by adding a morpheme that indicates vt or vi properties to a stem and verbalising a loanword or a Japanese-originated lexicon is a manipulation of ‘root-derivation’.
The Relation between Plasma Levels of Thrombomodulin and Endothelial Dysfunction in Syrian Children with Acute Lymphoblastic Leukemia
Authors: Rana Aldabbas  , Jumana Alsaleh
Published: September 2017

Background: Acute lymphoblastic leukemia (ALL) is the most common childhood malignancies, representing nearly one-third of all pediatric cancers. Thrombomodulin is a membrane glycoprotein expressed on endothelial cells, Its plasma level depends on the integrity of the endothelium. Soluble thrombomodulin is derived from injured endothelial cells or proteolytically cleaved from thrombomodulin by proteases. In the past, the endothelium was considered to be inert, described as a 'layer of nucleated cellophane', with only non-reactive barrier properties. However, it is now becoming clear that endothelial cells actively and reactively participate in hemostasis and immune and inflammatory reactions. They regulate vascular tone via production of nitric oxide, endothelin and prostaglandins. Severe endothelial dysfunction is present during the acute phase of acute lymphoblastic leukemia and it result from the disease itself, from treatment, or from other conditions (e.g. sepsis). Objective:The aim of this study was to determine the level of serum soluble thrombomodulin as a marker of endothelial activation in children with ALL at time of diagnosis and after the chemotherapy. Methods and Materials: A case - control study included Thirty patients with ALL and twenty healthy children. We analyzed serum soluble thrombomodulin levels by enzyme-linked immunosorbent assay. Results: In children with acute lymphoblastic leukemia, there was a significant increase in soluble thrombomodulin levels during the acute phase of the disease and during treatment. Conclusion: severe endothelial dysfunction is present during the acute phase of ALL and during treatment and appears to result from the disease itself and from the treatment.
Association between Molecular Subtypes and Survival in Patients with Breast Cancer
Authors: Mehmet  Fuat  Eren  , Ayfer  Ay  Eren  , Birsen  Yücel  , Seher  Bahar  , Ahmet  Cinkaya  , Rayna K. Matsuno  , Nuran Beşe
Published: September 2017

Background: Aim of this study is to classify intrinsic subtypes and evaluate the differences in clinical/pathological characteristics and survival outcomes among the molecular types. Patients and Methods: Breast cancer subtypes were classified according to the 2013 St. Gallen Consensus. Five molecular subtypes were determined, Luminal A, Luminal B-like HER2 negative, Luminal B-like HER2 positive, HER2 positive, and triple negative. Data was obtained from the records of patients with invasive breast cancer retrospectively. The differences in clinical/pathological parameters, overall survival and disease-free survival among the molecular subtypes were analyzed. The Kaplan-Meier method, log-rank test and Cox regression tests were used to compare groups. Results: The median follow-up period is 48 months. The Luminal B-HER2 negative was the most prevalent type (26.6%). Patient demographics, tumor characteristics and survival data were analyzed. The Luminal A and Luminal B-HER2 negative subtypes had significantly higher overall survival and disease-free survival rates. Multivariate Cox analysis revealed that tumor stage, more than 3 positive axillary lymph node involvement, and breast cancer subtype as significant factors for overall survival and disease-free survival (p<0.05). Triple Negative subtype had a higher relative hazard of local recurrence and distant metastasis (HR=2.69, 95% CI=1.47; 4.95). Conclusions: Breast cancer subtype has significant impact on overall survival and disease-free survival rates. While Luminal A and luminal B HER2 negative subtypes have better outcome, triple negative and HER2- subtypes remain poor.