bluuebunny/crossref_metadata_2025 huggingface dataset:
Buck Rogers in the 25th century: Transmedia extensions of a pulp hero
Authors: Bertetti Paolo
Published: November 2019

TheBuck Rogers in the 25th century A.D.comic strip first appeared in the newspapers on 7 January 1929, an important moment in the history of comics. It was the first science fiction comic strip, and, along withTarzan– which curiously debuted in comics the same day – the first adventure comic. However, many people are unawere that the origins of Buck Rogers are not rooted in comic strips, but in popular literature. In fact, Anthony Rogers (not yet “Buck”) was the main character of two novellas published in the late 1920 s inAmazing stories, the first pulp magazine:Armageddon 2419 A.D.(August 1928) and its sequel,The airlords of Han(March 1929). At first, the stories in the daily comic strips closely followed those of the novels, but soon the Buck Rogers universe expanded to include the entire solar system and beyond. This expansion of the narrative world is particularly evident in the weekly charts published since 1930. Soon, Nowlan’s creature became a real transmedia character: in the following years Buck appeared in a radio drama series (aired from 1932 until 1947), in a 12-episode 1939 movie serial, as well as in a 1950/51 TV series. Toys, Big Little Books, pop-up books, and commercial gifts related to the character were produced, before the newspaper comic strip ended its run in 1967. In recent years, the character has been reeboted a couple of times, linked to the TV series of the late 1980 s and to a new comic book series starting in 2009. Buck Rogers thus found himself at the centre of a truly character-oriented franchise, showing how transmedia characters can be traced back almost to the origins of the modern cultural industry. The following article focuses on the features that distinguish Buck Rogers as a character and on the changes of his identity across media, presenting a revised version of an analytical model to investigate transmedia characters that has been developed in previous publications.
Versifying Batman: Superheroes in contemporary poetry
Authors: Thoss Jeff
Published: November 2019

Since the late 1980 s, poets from the US and, to a lesser extent, the UK have increasingly featured superheroes in their work, mostly appropriating iconic figures along the lines of Batman or Superman and exploring some aspect of their personality (e. g., Batman’s relationship to Robin, Superman’s loneliness) in dramatic monologues. The prevailing if not sole account of this phenomenon argues that these characters provide a shared mythology to a generation of writers to whom biblical and classical references are no longer readily available. It also ties the superheroes’ provenance exclusively to the medium of comics. This latter point, in particular, is open to debate, insofar as since the late 1980 s, superheroes are, more than ever, part of media franchises that treat comic books as but one among many outlets. The present article hence views the superheroes in poetry not so much as an appropriation of comic book but of transmedia characters. Simon Armitage’s seminal poem “Kid” (1992), for instance – a diatribe by Robin directed at Batman’s dismissal of him – resonates as much with the 1960 s TV series or Tim Burton’sBatmanfilms (1989, 1992) as with the dark knight’s reinvention at the hands of comic book writers such as Frank Miller or Alan Moore. At the same time, the article aims to locate the place of the seemingly insular genre of poetry within a “convergence culture” that disseminates superheroes in the media ecology. Evidently, the “superhero poems” are not licensed creations that partake in officially sanctioned transmedia networks. Neither, however, are they a product of fandom and participatory culture. Instead, I would suggest that poetry here tentatively engages with the media culture that has factored into its marginalization during the past decades.
“We don’t get to stay the same way we started”:The walking dead, augmented television, and sociological character-building
Authors: Freeman Matthew
Published: November 2019

The dominant turn towards transmediality across the contemporary media industries has brought a range of emerging digital innovations and new possibilities for telling stories, be it in interactive television experiences, apps, social media, and so on. Despite such rich possibilities, the transmedia phenomenon has also arguably led to a kind of indirect flattening out of how we now understand different media forms, platforms, stories, and even characters. This article will explore the character-building practices that have been employed in augmenting the televisual experience ofThe walking dead(2010–present) across platforms. It looks atThe walking dead: Red machete(2017–2018), a six-part webisode series available on AMC’s website, the AMC Story Sync facility (2012–present), a double-screen application designed to enable audiences to post live comments about the episodes, respond to surveys, and talk to other audiences via a chat platform, and finally AMC’sTalking dead(2011–present), a 30-minute accompanying talk show. I demonstrate how these three examples of what I callaugmented televisiondraw on sociological and anthropological notions of communication, modern social life, and environment in ways that present chances for what I callsociological character-building.
The place of secondary complete cytoreductive surgery in advanced ovarian cancer
Authors: Jennifer Asmar , Iptissem Naoura , Aurélie Revaux , Philippe Kadhel , Marc Ayoubi Jean
Published: November 2019

Despite optimal treatment, three-quarters of the patients with advanced ovarian cancer, experiment relapse and its treatment has become a public health issue. Initially debated, surgery is gaining legitimacy in the treatment of late relapse patients, compared to chemotherapy alone. Secondary complete cytoreduction should be proposed only to a highly selected population. The type of surgery depends on the recurrence localization and the relapse extension in the pelvis and to other organs. Innovating techniques of surgery have become widespread including heated intra peritoneal chemotherapy (HIPEC), laparoscopy and robotic surgery. These specialized treatments should only be carried out in reference centers by oncological surgeons.
Exploitation of Mold Flux for the Ti-bearing Welding Wire Steel ER80-G
Authors: Piao Zhanlong , Zhu Liguang , Wang Xingjuan , Liu Zengxun , Jin Hebin , Zhang Xiaoshi , Wang Quanli , Kong Chao
Published: November 2019

In order to improve the surface defects of strand, the mold flux is exploited for the Ti-bearing welding wire steel ER80-G. The composition of mold flux is designed by analyzing the solidification characteristics of ER80-G and the slag system isothermal section diagram, simulating by the FactSage thermodynamics software. The Ti-bearing welding wire steel ER80-G belongs to the peritectic steel. The melting point range of the newly designed mold flux system is from 1030∘C to 1129∘C, the melting rate range is from 58 s to 64 s, the viscosity range at the temperature of 1300∘C is from 0.33 Pa·s to 0.50 Pa·s, the crystallization temperature range is from 1160∘C to 1293∘C, the crystalline fraction range is from 34% to 85%. The surface defects of strand which transverse depression, longitudinal depression, slag runner and so on were obviously improved when the newly design mold flux F3, F5, F9 were used to the production respectively. Those results suggest that 0.9 basicity with 28.4%-CaO, 31.6%-SiO2,3%-MgO, 10%-Na2O, 10%-CaF2, 6%-Al2O3, 1%-Fe2O3, 10%-Tcand all groups with 1.0 and 1.1 basicity show the best properties for Ti-bearing welding wire steel ER80-G.
Effects of correction equation for actual sodium concentration on the reduction in frequency of reports on pseudohyponatremia
Authors: Cho Jooyoung , Uh Young , Choi Seong Jin
Published: November 2019

Background

Serum sodium concentration could be spuriously reduced by excess glucose or lipid; thus, hyponatremia should be reassessed before reporting in order to exclude the possibility of pseudohyponatremia.

Methods

In this study, we used the calculation of corrected serum sodium concentration in hyperglycemic or lipemic samples and evaluated its effect on the reduction in frequency of reports on pseudohyponatremia. We retrospectively analyzed 1-year data from the laboratory information system.

Results

From August 2017 to July 2018, hyponatremia was initially noted in 30,465 results, of which 6614 results reported hyperglycemia. Corrected sodium concentrations were calculated using the results with glucose >170 mg/dL or lipemia index ≥3. The reported frequency of hyponatremia before and after correction of sodium concentration was reduced by 42.9%. Moreover, only 51.9% of the patients with severe hyponatremia had “true” severe hyponatremia. After applying the formula, the degree of hyponatremia was unchanged in only 45.8% of the total results.

Conclusions

Our report on the corrected sodium concentration reduced the frequency of pseudohyponatremia in hyperglycemic samples. Calculation of corrected sodium concentration is a useful tool to help clinicians establish appropriate care and treatment plans. Further prospective study is required to validate to our system in a real clinical practice.
Helium focused ion beam direct milling of plasmonic heptamer-arranged nanohole arrays
Authors: Hahn Choloong , Hajebifard Akram , Berini Pierre
Published: November 2019

We fabricate plasmonic heptamer-arranged nanohole (HNH) arrays by helium (He) focused ion beam (HeFIB) milling, which is a resist-free, maskless, direct-write method. The small He+ beam spot size and high milling resolution achieved by the gas field-ionization source used in our HeFIB allows the milling of high aspect ratio (4:1) nanoscale features in metal, such as HNHs incorporating 15 nm walls of high verticality between holes in a 55-nm-thick gold film. Drifts encountered during the HeFIB milling of large arrays, due to sample stage vibrations or He beam instability, were compensated by a drift correction technique based on in situ He ion imaging of alignment features. Our drift correction technique yielded 20 nm maximum dislocation of HNHs, with 6.9 and 4.6 nm average dislocations along the horizontal and vertical directions, respectively. The measured optical resonance spectra of the fabricated plasmonic HNH arrays are presented to support the fabrication technique. Defects associated with HeFIB milling are also discussed.
Simply synthesized nitrogen-doped graphene quantum dot (NGQD)-modified electrode for the ultrasensitive photoelectrochemical detection of dopamine
Authors: Wang Jin , Lu Cheng , Chen Tingting , Hu Lanping , Du Yukou , Yao Yong , Goh M. Cynthia
Published: November 2019

Recently, nitrogen-doped graphene quantum dots (NGQDs), as a new type of quantum semiconductor and photoelectrochemical material, are promising candidates in photoelectric sensing, water splitting, and biological imaging and have various potential application prospects. In this work, NGQDs were prepared by a simple calcination method, and then a photoelectrochemical sensing platform based on the NGQDs electrode with superior photoelectrochemical activity was designed and fabricated for the detection of dopamine (DA). Benefitting from the quantum effect and size effect, NGQDs displayed an enhanced photocurrent effective within ultra-low detection limit (0.03 μm), wide detection range (0.03–450 and 450–9680 μm), and high sensitivity in detecting DA with the assistance of ultraviolet light irradiation. The NGQDs electrode also showed continuous and stable photocurrent densities after long-term experiment, indicating the excellent durability of NGQDs for DA detection.
Nomenclature and terminology for linear lactic acid-based polymers (IUPAC Recommendations 2019)
Authors: Vert Michel , Chen Jiazhong , Hellwich Karl-Heinz , Hodge Philip , Nakano Tamaki , Scholz Carmen , Slomkowski Stanislaw , Vohlidal Jiri
Published: November 2019

Lactic acid enantiomers and cyclic lactic acid dimers, the latter referred to as lactides, are sources of degradable aliphatic polymers that are composed of chiral constitutional repeating units. The different synthesis routes and the various combinations of chiral units result in a multitude of chiral structures and of corresponding properties. Distinctive structural identification is often crucial, especially for applications as degradable polymers. This document provides recommendations for the nomenclature, abbreviations, and terminology related to lactic acid-based polymers in order to allow consistent comparison between polymers of different origins and between data collected within different disciplines.
Four Ways We Know the Democratic Peace Correlation Does Not Exist in the State of Knowledge
Authors: Mousseau Michael
Published: November 2019

Multiple studies have shown that when advanced-market “contract-intensive” economy is considered in a regression of fatal militarized interstate disputes, crises, or wars, the democratic peace correlation, the observed dearth of militarized conflict between democratic nations, becomes near zero and insignificant. Defenders of the existence of a correlation of democracy with peace claim these studies contain multiple errors. This article examines the state of evidence behind all claims in this debate. Four crucial facts are identified: (1) There is no report in print that shows democracy significant in a regression of fatal disputes controlling for contractualist economy that is unencumbered with controversial practices; (2) Every empirical defense of democracy has been rebutted, and the rebuttals remain uncontested; (3) There is no democratic peace in the nineteenth century, when there were no contractualist dyads but were democratic dyads; and (4) New analyses with revised direct data on contractualist economy covering 94% of observations over the largest-observed 1920–2010 period show that democracy without contractualist economy has a near-zero correlation with peace. Together, these facts inform us that there are no scientific grounds for deeming the democratic peace correlation as existing in the state of knowledge.
Stereochemistry of Pt(η2-P2L)Cl2 derivatives
Authors: Melník Milan , Mikuš Peter
Published: November 2019

The coordination chemistry of platinum (Pt) covers a huge field as shown by a recent survey covering the crystallographic and structural data of almost 200 monomeric examples of the Pt(η2-P2L)Cl2type. About 20% of these complexes exist as isomers and are discussed in this review. Included are distortion (64%),cis-trans(20%), and ligand (16%) isomers. These are discussed in terms of the metallocyclic rings, and coordinations are drawn between donor atoms, bond lengths, and interbond angles, with attention to anytrans-influence. Distortion isomers, differing only by the degree of distortion in Pt-L and L-Pt-L angles, are the most numerous. In this series of distortion and ligand isomers, the square-planar configuration about the Pt(II) atom has onlycis-configuration. The total mean values of Pt-L bond distances (cis- vs.trans-configuration) are 2.228 Å (P) and 2.353 Å (Cl) vs. 2.312 (P) and 2.302 Å (Cl).
Einflussfaktoren auf das Stigmabewusstsein Arbeitsloser
Authors: Lang Sebastian , Gross Christiane
Published: November 2019

Der Beitrag geht der Frage nach, welche Faktoren das Stigmabewusstsein von arbeitslosen Personen bedingen. Als theoretische Grundlage wird der Labeling-Ansatz herangezogen und Arbeitslosigkeit als ein von der Erwerbsarbeitsnorm abweichender Status aufgefasst. Zusätzliche Annahmen der Geschlechterforschung implizieren eine nach Geschlecht variierende Gültigkeit der Erwerbsarbeitsnorm und einen variierenden Einfluss der informellen sozialen Kontrolle. Die Hypothesen werden mittels Daten der Panelbefragung „Arbeitsmarkt und soziale Sicherung“ (PASS) getestet. Es zeigt sich ein positiver Zusammenhang zwischen einer zweiten Arbeitslosigkeitsepisode (für Männer), der aktuellen Arbeitslosigkeitsdauer, materieller Deprivation und der Verpflichtung zur Arbeitssuche (für Männer) mit dem Stigmabewusstsein Arbeitsloser. Insgesamt unterstützen die Befunde weitgehend die Annahmen des Labeling-Ansatzes: Das Stigmabewusstsein von Arbeitslosen ist mit dem Ausmaß und der Sichtbarkeit der Devianz sowie formeller sozialer Kontrolle im Sinne der Suchverpflichtung assoziiert.
Der Markt im Körper. Emotionales Beobachten und Bewerten im digitalisierten Finanzhandel
Authors: Laube Stefan
Published: November 2019

Auf der Grundlage ethnografischer Daten analysiert der Aufsatz den Körper als Ressource der Bearbeitung extremer Ungewissheit im digitalen Finanzhandel. Um Beobachtungen und Bewertungen zu gewinnen, transformieren die untersuchten HändlerInnen ihre Körper in Beobachtungsinstrumente, die visuell projizierte Echt-Zeit-Kursströme sowie Gewinne und Verluste in expressive Laute und emotionale Äußerungen überführen. Diese Medienwechsel beruhen auf der Aneignung einer immersiven Erkenntnishaltung, bei der HändlerInnen sensorisch und leiblich mit dem Markt verschmelzen. Leibliche Emotionen und ihre Darstellung werden im Handelsraum als Begründungen für intuitive Entscheidungen genutzt. Abgesichert ist die immersive Erkenntnishaltung durch die Vorstellung der Teilnehmenden, dass eine kompetente Marktteilnahme emotionale Affinitäten zwischen Markt und HändlerInnen erfordert.
Gütekriterien in der qualitativen Sozialforschung als Form der Reflexion und Kommunikation. Eine Replik auf die Beiträge von Strübing et al. und Eisewicht & Grenz.
Authors: Jansen Till
Published: November 2019

In unterschiedlichem Maße plädieren die Beiträge Strübings et al. (2018) sowie Eisewichts und Grenz’ dafür, Gütekriterien im Hinblick auf die diskursive Rezeption qualitativer Forschung zu formulieren und ‚rhetorische Performanz’ zur Bewertung der Qualität qualitativer Forschung heranzuziehen. Eisewicht und Grenz sprechen sich sogar vollständig gegen „paradigmatisch-operationalisierende“ und ausschließlich für „rhetorisch-performative“ Gütekriterien aus. Doch eine qualitative Sozialforschung, die Rhetorik als Gütekriterium für wissenschaftliche Güte anerkennt, verwechselt diskursiven Erfolg mit Wahrheitsgehalt und gefährdet damit das, was Wissenschaft ausmacht. Qualitative Forschung, will sie als Forschung ernst genommen werden, sollte daher ausschließlich auf „paradigmatisch-operationalisierende“ Gütekriterien zurückgreifen und Rhetorik sowie Originalität ausschließlich in ihrer Funktion für die Vermittlung würdigen.
PHF6 promotes non‐homologous end joining and G2 checkpoint recovery
Authors: Warmerdam Daniël O , Alonso‐de Vega Ignacio , Wiegant Wouter W , van den Broek Bram , Rother Magdalena B , Wolthuis Rob MF , Freire Raimundo , van Attikum Haico , Medema René H , Smits Veronique AJ
Published: November 2019

The cellular response to DNA breaks is influenced by chromatin compaction. To identify chromatin regulators involved in the DNA damage response, we screened for genes that affect recovery following DNA damage using an RNAi library of chromatin regulators. We identified genes involved in chromatin remodeling, sister chromatid cohesion, and histone acetylation not previously associated with checkpoint recovery. Among these is the PHD finger protein 6 (PHF6), a gene mutated in Börjeson–Forssman–Lehmann syndrome and leukemic cancers. We find that loss of PHF6 dramatically compromises checkpoint recovery in G2 phase cells. Moreover, PHF6 is rapidly recruited to sites of DNA lesions in a PARP‐dependent manner and required for efficient DNA repair through classical non‐homologous end joining. These results indicate that PHF6 is a novel DNA damage response regulator that promotes end joining‐mediated repair, thereby stimulating timely recovery from the G2 checkpoint.
Inflationary Magnetogenesis with Helical Coupling
Authors: Shtanov Yu. V. , Pavliuk M. V.
Published: November 2019

We describe a simple scenario of inflationary magnetogenesis based on a helical coupling to electromagnetism. It allows the generation of helical magnetic fields with strength of order up to 10−7 Gs, when extrapolated to the current epoch, in a narrow spectral band centered at any physical wavenumber after the adjustment of model parameters. The additional constraints on magnetic fields arise from the considerations of baryogenesis and, possibly, from the Schwinger effect of the creation of charged particle-antiparticle pairs.
Análise da estrutura dimensional da escala de automonitoria
Authors: Monteiro Marcia Cristina , Soares Adriana Benevides
Published: November 2019

As relações na universidade provavelmente são responsáveis por redes que facilitam os processos de aprendizagem e a permanência no Ensino Superior. O conceito de automonitoria pressupõe que as pessoas regulam a autoapresentação, adaptando ações de acordo com as pistas situacionais, o que muito facilitaria o processo de integração. Este estudo teve o objetivo de analisar a estrutura dimensional da Escala de Automonitoria por meio da análise de network. Participaram 500 alunos de instituições públicas e privadas de Ensino Superior, de ambos os sexos e idade entre 18 a 38 anos. Os dados foram coletados em sala de aula e os participantes assinaram o TCLE. A análise preservou os 18 itens e manteve dois fatores se aproximando do modelo em inglês. A escala apresenta evidências de validade que permite a utilização no contexto brasileiro. Estudos prospectivos podem viabilizar a análise das associações entre automonitoria e outras variáveis da adaptação acadêmica.
Crianças institucionalizadas e sintomas depressivos por meio do Rorschach e do CDI
Authors: Resende Ana Cristina , Oliveira Lorena de Melo Mendonça , Franco Renata
Published: November 2019

Os sintomas depressivos em crianças podem ser sutis e variados. Este estudo investigou sintomas depressivos em crianças institucionalizadas para a adoção, comparando-as com crianças não institucionalizadas, utilizando para isso o método de Rorschach Sistema Compreensivo e o CDI. Participaram do estudo 84 crianças, com idades entre 7 e 11 anos. Para a análise de dados foram utilizados: o teste t de student, a correlação de Pearson e o d de Cohen. Os resultados revelaram que as crianças institucionalizadas se mostraram com mais baixa autoestima, problemas afetivos, ideações suicidas, dificuldade escolar e dificuldade na relação com o outro quando comparadas com as crianças não institucionalizadas. Esses dados sugerem uma possível síndrome depressiva, sendo aconselhável a investigação clínica mais aprofundada para providenciar diagnóstico e tratamento, especialmente nas crianças institucionalizadas. Além disso, foram observadas associações entre as variáveis do Rorschach e CDI. Implicações desses achados e sugestões de pesquisas futuras são apresentadas ao final.
Revisão sistemática sobre fatores associados à relação entre habilidades sociais e suporte social
Authors: Ximenes Vanessa Santiago , Queluz Francine Náthalie Ferraresi Rodrigues , Barham Elizabeth Joan
Published: November 2019

Um repertório bem desenvolvido de habilidades sociais permite interações sociais de melhor qualidade. Assim, habilidades sociais afetam o acesso a suporte social, mas pouco se sabe sobre fatores que aumentam ou reduzem a eficácia das habilidades sociais na obtenção desse tipo de suporte. O objetivo deste estudo foi identificar fatores associados à magnitude da relação entre habilidades sociais e suporte social. Foram consultadas as bases de dados Scielo, Lilacs, Medline, PsycNET e Web of Science, recuperando artigos publicados em Espanhol, Inglês ou Português entre 1997 e 2017. Quinze artigos foram selecionados. A idade, o gênero, e a fonte de apoio foram alguns dos fatores que influenciaram a relação entre habilidades sociais e suporte social. Em pesquisas futuras, será importante testar um modelo da relação entre habilidades sociais e suporte social, incluindo estas variáveis intervenientes.
El cuerpo mutilado de la Gran Guerra. Discapacidad y género en el retorno de un aviador costarricense
Authors: Arias Mora Dennis
Published: November 2019

Este artículo estudia la experiencia de mutilación corporal sufrida por el aviador Tobías Bolaños Palma (1892-1953) durante la Gran Guerra (1914-1918), contrastando las nociones sobre el cuerpo en países combatientes que desarrollaron un modelo de rehabilitación de la discapacidad, con las de medios de prensa y de la diplomacia costarricense que siguieron el caso. Empleando reportes diplomáticos, periódicos y revistas culturales, y considerando la perspectiva de género que marcaba la experiencia física de la guerra, se analiza el ingreso de Bolaños en la aviación francesa, su vivencia corporal y los significados sociopolíticos y corpóreos de su regreso al país. Con esto puede verse que, a diferencia del valor político y económico que tuvo la mutilación masiva entre las asociaciones de veteranos de algunos países combatientes, el caso individual de Bolaños se vio enfrentado al prejuicio social y corporal de diplomáticos, políticos y medios costarricenses y a los usos ideológicos que de su retorno hizo la dictadura de los Tinoco (1917-1919), asuntos que el propio Bolaños sorteó de distintas maneras.
Foreign companies’ CSR themes and objectives in Central Asia
Authors: Achyldurdyyeva Jennet , Jaw Bih-Shiaw , Wang Christina Yu-Ping
Published: November 2019

The study showcases key themes and objectives of CSR of MNCs in transition economies and the types of CSR activities reported to the audience. The contribution of the paper is in bringing insights into the goals, motives, and objectives of CSR of MNCs in Central Asia. The findings of the study are based on the content analysis of the companies’ CSR activities explicitly reported to the audience. Multiple sources of publicly available data on MNCs (CSR reports, annual reports, websites of the companies, local news outlets reporting about CSR of foreign companies) were collected, coded and analyzed to generate the findings. The limitation of the study is in the limited number of companies/countries reviewed. This paper contributes to the literature on CSR of MNCs in transition economies.
An evaluation of gross inland energy consumption of six Central European countries
Authors: MAGDA ROBERT , Bozsik Norbert , Meyer Natanya
Published: November 2019

The study provides a comprehensive overview of the current structure and utilization of energy production of six Central European countries (Poland, Czech Republic, Slovakia, Bulgaria, Hungary and Romania) focusing on the dependence on energy imports. The purpose of the article was to analyse the gross inland energy consumption of these six countries and to examine the relationship between renewable energy and non-renewable energy sources. A comparative time series analysis method using data from 2010 to 2016 was utilized.  In addition, partial correlation analysis under control variables to determine whether the relationship calculated in the correlation matrix exists or not was applied. Results indicated that in the European Union, the renewables have mainly replaced nuclear energy. A combination of renewables and natural gas replaced the coal in Poland, Czech Republic, Slovakia and Bulgaria. Findings were inconclusive to prove this in Hungary and Romania. The energy production structure of the six Central European countries varies due to the differences in natural endowments. However, the results showed that the renewables mainly replaced coal.
Serial search code acquisition of FHSS system
Authors: Al-Rawi Muhanned , Al-Rawi Muaayed
Published: November 2019

Frequency hopping spread spectrum (FHSS) communication systems offer significant performance advantages in view of their low probability of intercept, improved performance in multipath fading environments and their ability to avoid interference by hopping into low interference frequency channels. For the transmitted sequence to be correctly received and demodulated, the frequency hop sequence used at the receiver should be similar to that employed in the transmitter. Code acquisition in frequency hopping attempts to address this problem by providing a frequency hop pattern at the receiver that is nearly identical to that used at the transmitter. Code acquisition brings the alignment between the transmitter and the receiver hop pattern to at least one hop period. In this paper, the serial search code acquisition, which is the first step of synchronization, is studied for frequency hopping spread spectrum (HFSS) system over Rayleigh fading channel. Simulation results show the effect of fading channel on the code acquisition.
Effect on blending of supplementary cementitious materials on performance of normal strength concrete
Authors: Jagan S.
Published: November 2019

Sustainability and scarcity in resources are the two major issues to be dealt within the present scenario by effective utilization of alternative materials. In this present study, an attempt has been taken to study the effect of supplementary materials such as fly ash and silica fume as a partial replacement to cement and steel slag and M-sand as a replacement to river sand on strength and durability of concrete. In this study, concrete specimens were prepared based on five different mixes by varying the percentages of these supplementary materials. Various mechanical properties like compressive strength, split tensile strength and flexural strength were performed to ascertain the mix with optimum levels of replacement of supplementary materials for cement and fine aggregate. Durability property like water absorption test was performed on the mix with optimum values of strength. Results revealed that mix with higher percentages of steel slag, optimum level of silica fume and fly ash have shown higher strength and lesser permeability in concrete.
Actinomycetes from the Soil of Chilli Plantation in Yogyakarta Showing an Antagonism to Fusarium oxysporum FU3
Authors: Audinah Liya , Ilmi Miftahul
Published: November 2019

Application of biocontrol agent is an environmental-ly-friendly method to overcome the Fusarium wilt in chilli due to Fusarium oxysporum. This research aimed to isolate actinomycetes antagonist to F. oxysporum FU3 as biocontrol agent from the soil of chilli plantation in Kulon Progo, Yogyakarta. The actinomycetes were isolated using SCA medium and followed by screening for anti-F. oxysporum FU3 on PDA. The filtrate from isolates which showing the highest inhibition zone was produced and tested against strain FU3. The best isolate was then characterized. There are four iso-lates of actinomycetes showing antagonistic activity against F. ox-ysporum (AK4, AK5, AK7, and AK9). The highest antagonistic ac-tivity was shown by AK5 filtrate with inhibitions on PDA and PDB are 41.71 ± 3.5 % and 81.77 ± 5.1 %, respectively. Further obser-vation showed that filtrate of AK5 caused abnormality and lysis on FU3 hyphae. From the results, we concluded that AK5 is a poten-tial biocontrol agent against F. oxysporum. Further studies to opti-mize the production and formulize the bio-fungicide are suggested
EVALUATION OF THE PERFORMANCE OF AEROTANKS DUE TO ADD-ON ATTACHED BIOCENOSIS
Authors: Oleynik O. Y. , Airapetian T. S. , Kurganska S. M.
Published: November 2019

Purpose. The research involves the implementation of comparative calculations to evaluate the performance of aerotanks with add-on attached biocenosis (biofilm). Methodology. For improving the performance of the aerotanks due to the introduction of an additional load with attached biocenosis (biofilm), the authors constructed the mathematical models that consider the simultaneous oxidation of organic pollutants with suspended and attached biocenosis. Based on these models, the methods were developed for calculating clarification parameters. The authors performed evaluation of the influence of various clarification factors in aerotanks. They proved that the clarification intensity is increased due to additional elements with the attached biocenosis. Herewith, possible technological and structural schemes of aerotanks were considered, when the loading elements (nozzles, screens, etc.) are located throughout the whole volume or more densely and compactly only in its individual sections. Findings. The parameters of effluent clarification from organic pollution in the aerotanks are determined using numerical methods. The graphs show the significant performance of aerotanks due to the introduction of the additional load with the attached biocenosis (biofilm). The calculations of the effect of additional loading on the performance of complete-mix aerotanks and continuous-flow aerotanks show that the use of immobilized biocenosis can improve the quality of removal of organic pollutants by 2-5 times. Originality. The authors substantiated scientifically the influence of various factors of wastewater treatment in aerotanks, the efficiency of which is increased due to additional elements with the attached biocenosis. Practical value. The introduction of research results in wastewater treatment plants can significantly improve the quality of the removal of organic pollutants by biological methods. The implementation of the calculation methods for the proposed dependencies makes it possible to more fully and reasonably take into account important processes that significantly affect the utilization of organic pollutants and the efficiency of the aerotanks with the additional involvement of wastewater treatment by the attached biocenosis.
TECHNOLOGY FOR WATER PURIFICATION FROM RESIDUES OF DRUGS AND PLASTIC
Authors: Dolina L. F. , Mashykhina P. B. , Dolina D. A.
Published: November 2019

Purpose. The main purpose of the article is to develop a technology for water purification from residues of oil-fat containing drug (medicinal) cream, in particular technology and a technological scheme for purifying urban (municipal) wastewater from plastics and residues of drugs. Methodology. The studies were carried out based on the analysis of scientific sources and reporting data on the availability of drugs and plastics in the water of Ukraine, European countries, and the USA. Findings. The authors present the results of a comprehensive review of issues related to the determination of the availability of drugs in various waters, their concentrations and the most dangerous drugs-toxicants. Medicines and plastics can accumulate not only in humans and animals, but also in sea and river fish, etc. The presence of drugs and plastic in the body can have a negative impact on the health. The treatment facilities in Ukraine and the world are not sufficiently adapted for the detection of drugs and plastics and their purification. Originality. The authors of this material conducted studies to determine the content of plastic in drinking tap water in Dnipro and Zaporizhzhia cities. Drinking water from the tap contains less plastic particles than bottled water of the famous Ukrainian trade brands. The work developed technological schemes for the purification of industrial wastewater from pharmaceutical enterprises for the manufacture of creams, ointments, oils and other products for treatment and cosmetic purposes. Structures and methods for purifying water from these pollutants have been proposed, which had not been previously used at water purification stations, but successfully apply in other industries. Practical value. The use of environmentally efficient technologies in Ukraine will allow obtaining high-quality drinking water, but it will require re-equipment and reconstruction of water treatment plants. Major funding should be provided by corresponding articles. Currently, in Ukraine (even in Kyiv) there are no stations for the purification of drinking and waste waters, which would use modern technologies and facilities, but high-quality water is the health and life of people.
THE ANALYSIS OF TRAVEL CHARACTERISTICS AND THE SCHOOL BUS PROVISION PLAN BASED ON STUDENTS’ TRANSPORTATION MODE
Authors: Rozandi A. , Agustien M. , Arliansyah J.
Published: November 2019

Purpose. This study was conducted to obtain the characteristics of respondents and travel modes that are still dominated among private vehicle users. Methodology. This analysis was done using Microsoft excel and SPSS Ver. 25 for Windows. Findings. The results showed that the factors affecting the use of transportation modes for students journeys at one time to and from school are as follows: a) sex (X1), b) age (X2), c) monthly pocket money (X3), d) distance (X6), e) long trips departure (X7 ), f) leave travel expenses (X8), g) the frequency of the return trip (X10), h) the distance of the return trip (X11), i) the long way home (X12) and j) the cost for going home (X13). The opportunity of providing school bus may get good responses because the students would prefer to choose a mass transportation integrated with the school and giving good service, safety, less cost and its affectivity. In fact, it is not only in pedestrian offenders who have close travel distance and short-time travel of leaving for school and back home. Originality. There have been many studies discussing public transportation. However, this study limits only in discussing the use of school bus regarding students’ transport modes. Practical value. Generally, this study contributes positive outputs in some aspects, such as: economics, management and safety. Indeed, the existence of school bus will help students who have some difficulties, including distance, economical problem and so on.
COMPUTER MODELING OF AIR POLLUTION IN CASE OF DUST CLOUD MOVEMENT IN OPEN PIT MINE
Authors: Biliaieva V. V. , Kirichenko P. S. , Berlov O. V. , Gabrinets V. O. , Horiachkin V. M.
Published: November 2019

Purpose. Explosions in open pits lead to the formation of dust clouds. These clouds lead to intense air pollution. An important task is the development of methods for predicting the dynamics of atmospheric air pollution during explosions in open pits. The purpose of this work is development of a numerical model to predict atmosphere pollution after explosion in open mine pit. The task is to develop a numerical model that would allow for the calculation to take into account the geometrical shape of the open pit mine, the parameters of the meteorological situation (wind speed, atmosphere), the shape of the dust cloud that is formed in the open pit mine at the site of the explosion. Methodology. Mathematical modeling of dust cloud dispersion during an explosion in an open pit mine is based on the use of fundamental equations of aerodynamics and mass transfer. The airflow velocity field in the open pit mine is modeled using the Laplace equation for the velocity potential. The formation of the concentration field of dust is modeled on the basis of the equation of convective-diffusion dispersion of an impurity. For numerical integration of modeling equations, difference schemes are used. The Laplace equation for the velocity potential is numerically integrated using the Richardson method. For the numerical integration of the convective-diffusion dispersion equation for an impurity, an implicit difference splitting scheme is used. Findings. A CFD model has been developed that allows you to calculate the formation of pollution zones during the movement of a dust cloud in the open pit mine. A feature of the developed model is the speed of calculation. For practical use of the developed model, standard input information is required. Originality. In contrast to the existing models in Ukraine, the developed numerical model allows taking into account the geometrical shape of the open pit mine and the geometrical shape of the dust cloud when making predictive calculations to assess the level of air pollution caused by explosions in open pits. Practical value. The developed numerical model can be implemented on computers of low and medium power. For practical use of the numerical model, standard information on meteorological conditions in open pit mine is required. The numerical model can be used for environmental assessment of the effect of explosions in open pit mine on environmental pollution and work areas.
Extended Survival After Surgical Resection for Pituitary Metastases: Clinical Features, Management, and Outcomes of Metastatic Disease to the Sella
Authors: Patel Krupa R. , Zheng Junting , Tabar Viviane , Cohen Marc A. , Girotra Monica
Published: November 2019

Background

Patients with pituitary metastasis (PM) have a relatively poor prognosis. We describe the presentation, management, and outcomes of patients with PM.

Subjects, Materials, and Methods

We performed a retrospective review of patients diagnosed with PM at a single institution from 1996 to 2015. Eighty-five patients diagnosed with metastasis to the pituitary or sella turcica by pathology or based on a combination of neuroimaging and clinical findings were included. Univariate and multivariable Cox regressions evaluated associations between clinical factors and overall survival.

Results

The most frequent sites of primary malignancies resulting in PM were lung (26%) and breast (26%). Median age at diagnosis was 60 years (range, 18–95). The most common complaints at diagnosis included visual deficits (62%), headache (47%), and cranial nerve palsy (31%). Seventy percent of patients had pituitary insufficiency—adrenal insufficiency (59%), hypothyroidism (59%), or diabetes insipidus (28%). Management of PM included radiation therapy (76%), chemotherapy (68%), surgical resection (21%), or combination therapy (71%). Fifty percent and 52% of patients who received surgical treatment and irradiation, respectively, reported symptomatic improvement. Median overall survival (OS) was 16.5 months (95% confidence interval: 10.7–25.4). On multivariable analysis, a primary cancer site other than lung or breast (p = .020), age <60 years (p = .030), and surgical resection (p = .016) were associated with longer OS.

Conclusion

Patients <60 years of age, those with primary tumor sites other than lung or breast, and those who undergo surgical resection of the pituitary lesion may have prolonged survival. Surgical resection and radiation treatment resulted in symptomatic improvement in ~50% of patients.

Implications for Practice

This study is the largest original series of patients with metastatic disease to the sella. In patients with pituitary metastasis, younger age, primary site other than lung or breast, and metastatic resection may prolong survival. Resection and radiation led to symptomatic improvement in ∼50% of patients. Seventy percent of patients had hypopituitarism. These hormonal deficiencies can be life threatening and can result in substantial morbidity if left untreated. Patients should be treated using a multimodality approach—including a potential role for surgery, radiation, chemotherapy, and hormone replacement—with the goal of improving survival and quality of life.
Simulation of fatty acid adsorption at the magnesia surface
Authors: Liu Weiping , Xu Hui , Wang Zhixing , Wang Xuming
Published: November 2019

In this study, wet surface modification converted the hydrophilic magnesia (MgO) surface to a hydrophobic surface, which is crucial for magnesia additives in polymer fire retardants, inks, cosmetics and paint and paper materials and in the flotation of magnesia. For this reason, the adsorption of fatty acids at the magnesia surface in the wet surface modification process was examined by molecular dynamics simulations. The sessile drop contact angles at the magnesia surface with monolayer adsorption of lauric acid (C12H24O2), oleic acid (C18H34O2) and stearic acid (C18H36O2) and the interfacial water structures at the magnesia surface with sub-monolayer, monolayer and bilayer fatty acid adsorption were analyzed and compared with the experimental results. The sessile drop contact angle at the magnesia surface increased as a function of the carbon (C) chain length with fatty acid adsorption and agreed with the experimental results. All the fatty acids were adsorbed at the magnesia surface, and the interaction energy results agreed with the adsorption phenomenon. A hydrophobic surface was established in monolayer stearic acid adsorption and was transformed into a hydrophilic surface in stearic acid bilayer adsorption.
The Impact of Using Inverted Classrooms on Promoting Extensive versus Intensive Reading Comprehension among Iranian Upper-intermediate EFL Learners
Authors: Neisi Leila , Hajijalili Mehrnnoosh , Namaziandost Ehsan
Published: November 2019

This study aimed to investigate the impact of inverted classrooms on promoting Iranian EFL learners’ extensive and intensive reading comprehension. To fulfil, 60 Iranian upper-intermediate EFL students out of 90 were chosen based on an Oxford Quick Placement Test. The selected participants were randomly divided into two experimental groups; intensive reading group (n=20) and extensive reading group (n=20), and a control group (n=20). Then, the three groups were pretested. After that, the researcher put the participants of both experimental groups in two inverted classrooms. Each inverted classroom was equipped with Internet, computer and projector and participants in this classroom were allowed to bring their Smartphones to the classroom and use them during learning. On the other hand, the control group receive no treatment and were taught in traditional instruction. The results of paired samples t-test and one-way ANOVA revealed that both experimental groups had better performance on their post-test compared to their pre-test. The results showed that there was not a significant difference between the performances of the experimental groups on the post-test. Finally, implications arising from the findings and suggestions for further research were explained.
The Application of Register Analysis into Translation Quality Assessment
Authors: Yang Ningwei
Published: November 2019

Register analysis, an essential part of SFL, is composed of three variables, that is, field, mode and tenor. According to SFL, register forms the interface between the social system and the linguistic system; its elements realize social meanings and are realized in linguistic forms. In the process of translating, translators by and large confront problems not only at the linguistic level but also cultural level. As a powerful tool, register theory is practical and necessary to be introduced into translation studies. This paper tries to explore literary translation from the perspective of SFL and evaluate the version of Beiying by Zhang Peiji respectively from the field, mode and tenor. Based on findings, it is safe to say that register analysis to some degree makes a valuable contribution to translation quality assessment (TQA).
A Survey on Self-efficacy of English Majors: Exploring Its Correlation with Time Management and Strategy Use
Authors: Gan Xiaoli
Published: November 2019

The present study seeks to investigate the self-efficacy of English majors and its relationship with time management and strategy use during their English learning. The study reported in this paper was conducted to examine self-efficacy of students passing TEM-4 (Test for English Majors -- Band 4) and their self-regulating time management. The data were collected via student questionnaires & interviews. The findings of this case study revealed that there is a gender difference in English majors’ self-efficacy. Meanwhile, a positive correlation between the self-efficacy of students passing TEM -4 & their strategy use as well as self-regulating time management was demonstrated. Implications of the findings to language teaching and learning are discussed.
Design of 2.4 GHz Microwave Bandpass Filter
Authors: Abdulhamid Mohanad , Mugambi Atanasio
Published: November 2019

This paper presents in detail the design of highly selective microstrip bandpass filters that consist of microstrip open-loop resonators with a cross coupling that exhibit a single pair of attenuation poles at finite frequencies. The design approach enables one to use advanced fullwave EM simulators to complete the filter design, namely, to determine the physical dimensions of the filter. The results acquired through research & development process are simulated, analyzed and verified by using parallel-coupled lines filter topology, which are later, enhanced by various value-aided software tools such as MATLAB-7.0, CorelDraw-12, Microwave Office-2012