bluuebunny/crossref_metadata_2025 huggingface dataset:
Take it from the best: Connectedness is the key to great investigative journalism
Authors: Gearing Amanda
Published: December 2019

The digital revolution is changing the way investigative journalists find, hold and verify information. The methods used by investigative journalists are often kept secret from others, but in this research, fourteen leading investigative reporters and news workers revealed how they found, verified and published news coverage that led to sociopolitical change in Australia. The key ingredient was improved connectedness via one or more networking methods including social media platforms; web-based communication technologies such as Skype and e-mail; reporter collaborations and media outlet collaborations. Despite the perception of a headlong rush to adopt digital technologies, this study found that leading reporters either rejected them or were cautious about adopting them. It found that reporters value their analogue techniques and, while a few were keen or very keen to explore new possibilities, many were reluctant or afraid of the perceived risks of digital technologies. This article reveals the specific digital technologies used by leading Australian reporters that have made their work faster, easier and more incisive in calling the powerful to account in the public sphere. In each case, reporters who experimented with new techniques found that the power of the technologies they used resulted in coverage that yielded much more significant outcomes than they had envisaged. The coverage also attracted national recognition in the form of peer-selected industry awards.
Facebook and cultural identity: Discourses on mediation among international students
Authors: Dumitrica Delia
Published: December 2019

Digital mediation is implicated in the production of cultural identity in multiple ways. The representations produced and circulated on social media platforms, along with the ubiquitous nature of these platforms, become part and parcel of the production and performance of cultural identity. This paper investigates discourses of Facebook mediation and cultural identity among a sample of international undergraduates in media and communication at a major Dutch university. The analysis of 43 written student essays reveals four discourses: Facebook as a mirror of cultural identity, as a cultural mosaic, as a site of cultural difference and as an opportunity for critical reflection on the idea of cultural identity. Interestingly, these discourses are permeated by a recurrent vision of individual control of both mediation and cultural identity. This article discusses the ideological work entailed in these discourses, calling for more awareness raising on the ways in which social media actively construct social reality.
Political communication Modi style: A case study of the demonetization campaign on Twitter
Authors: Rodrigues Usha M. , Niemann Michael
Published: December 2019

Indian Prime Minister Narendra Modi (@narendramodi) is one of the world's most followed political leaders on Twitter. During the 2014 and 2019 election campaigns, he and his party used various social media networking and the Internet services to engage with young, educated, middle-class voters in India. Since his first sweeping win in the 2014 elections, Modi's political communication strategy has been to neglect the mainstream news media, and instead use social media and government websites to keep followers informed of his day-to-day engagements and government policies. This strategy of direct communication was followed even during a critical policy change, when in a politically risky move half-way through his five-year prime ministership, Modi's government scrapped more than 85 per cent of Indian currency notes in November 2016. He continued to largely shun the mainstream media and use his social media accounts and public rallies to communicate with the nation. As a case study of this direct communication strategy, this article presents the results of a study of Modi's Twitter articulations during the three months following the demonetization announcement. We use mediatization of politics discourse to consider the implications of this shift from mass communication via the mainstream news media, to the Indian prime minister's reliance on direct communication on social media platforms.
A cabana: os sentidos sociais dos objetos religiosos Afro-Brasileiros no extremo norte do Brasil
Authors: Lima Lorran
Published: December 2019

O presente artigo está articulado a partir de duas dimensões: a) a comercialização de objetos religiosos afro-brasileiros e b) os sentidos sociais mobilizados pelos sujeitos da pesquisa para qualificar tais objetos e produtos a partir das dimensões materiais e simbólicas. A pesquisa etnográfica foi desenvolvida num espaço de comercialização de produtos e utensílios rituais em Macapá, capital do Estado do Amapá, no norte do Brasil, e focou-se na avaliação de como um estabelecimento atuava como eixo de difusão de materiais, informações e experiências. Este trabalho possibilitou compreender como espaços de produção da religiosidade afro-brasileira se intersetam com formas de entendimento e negociação dos sentidos atribuídos à eficiência e eficácia dos objetos, e entender como esses objetos são dispositivos dotados de possibilidade de agência e capacidade comunicativa na relação dos humanos com seres espirituais, humanos e não humanos através da prática ritual.
Írást segítő és gátló tényezők egyetemi hallgatók körében
Authors: Pintér Henriett , Molnár Pál
Published: December 2019

Tanulmányunkban egyetemista diákok írásfelfogásának méréséről, illetve az írást serkentő és gátló tényezők közötti összefüggések feltárásáról számolunk be. Arra kerestük a választ, hogy a hallgatók hogyan vélekednek önmagukra tekintve írói szerepben az írást elősegítő és gátló tényezőkről: a tudásalkotásról, mások szerepéről, a produktivitásról, perfekcionizmusról, a halogatásról és az elakadásról. Vizsgálatunk kutatásalapú tanulásra tervezett kurzusokon részt vett másodéves bölcsészhallgatók (N=308) körében zajlott; feladataik közé tartozott egy rövid, tudományos szöveg (kutatási terv) létrehozása közösen vagy egyénileg szakirodalmi források felhasználásával.A hallgatói írásfelfogás mérésére nemzetközi folyóiratban publikált, standardizált és bevizsgált mérőeszközt alkalmaztunk (hat tényezőt mért ötfokú Likert skálán). A megkérdezettek körében arányaiban többen voltak azok, akik fontosnak tartják, hogy társaik véleményezzék szövegüket, és olvasóik megértsék azt. Sokan nyilatkoztak úgy, hogy nem foglalkoznak rendszeresen írással; vannak viszont, akik önmagukat produktívnak, rendszeresen írónak tekintik. A perfekcionizmus tekintetében a hallgatók mintegy fele bátran leírja gondolatait, kevésbé tartva attól, mit gondolnak mások a leírt gondolataikról. A megkérdezettek nagy része halogat saját elmondása szerint, kevesebben, akik nem halogatják az írást. Azok körében, akik az elakadás kérdéseire válaszoltak, többen vannak, akiknek nincsenek korábbi negatív írástapasztalatuk. Kicsit többen vannak azok, akiknek saját bevallásuk szerint nem okoz gondot az írásbeli önkifejezés. A szövegalkotást segítő és gátló tényezők megismerése és figyelembevétele mind a tanulók, mind az oktatók számára hasznos lehet: hozzájárulhat a tanulási-tanítási helyzet és élmény javításához, emellett a folyamatosság segítése, a halogatás és az elakadás oldása csökkentheti a lemorzsolódást is. További vizsgálatokra van azonban szükség ahhoz, hogy az egyes tényezők közötti összefüggésekről pontosabb képet kapjunk; a szövegalkotás folyamatossága mellett a szövegminőségre vonatkozó vizsgálatok is fontosak.
Labdarúgó akadémisták rekrutációjának és elégedettségének vizsgálata a fővárosi és a vidéki akadémiák tükrében
Authors: Rábai Dávid
Published: December 2019

Az utóbbi időben a honi labdarúgó akadémiákkal kapcsolatos kutatások egyre népszerűbbé válnak, noha maga a magyar labdarúgó akadémiai rendszer immáron közel 18 éves múltra tekint vissza hazánkban. A pedagógiai aspektusokat fókuszba helyező vizsgálatok azonban manapság is kevésbé preferáltak a kutatók részéről, hiszen az akadémistákat egyelőre kevesebb ilyesféle vizsgálat érintette, így a szakirodalom is korlátozott ilyen tekintetben. Jelen kutatásunkban azonban az ezekben az intézményekben fejlődő fiatal növendékek vizsgálata jelenik meg. Célunk konkrétan az volt jelen tanulmány megírásával, hogy terepmunka segítségével az általunk kiválasztott hat akadémiában (Debreceni Labdarúgó Akadémia, Diósgyőri Labdarúgó Akadémia, Békéscsabai Labdarúgó Akadémia, Sándor Károly Labdarúgó Akadémia, Magyar Futball Akadémia, UTE Labdarúgó Akadémia) az ottani akadémisták rekrutációját és elégedettségét vizsgáljuk meg a fővárosi és a vidéki intézmények tükrében.Kutatásunkhoz a kérdőíves lekérdezés módszerét alkalmaztuk, amely segítségével összesen 560 labdarúgó akadémistát sikerült megszólaltatnunk.Az eredményeink alapján több esetben is szignifikáns különbségeket véltünk felfedezni az egyes akadémiák akadémistáinak válaszai között. Az intézmények között szignifikáns különbségek mutatkoztak az akadémisták rekrutációját (p=0,000), a növendékek elégedettségét az egyes intézmények felszereltségét (pályák, öltözők, eszközök) (p=0,000), illetve a saját edzőik szakmai felkészültségét (p=0,004) illetően is.  Eredményeink segítségével betekintést tudunk nyerni az egyes honi labdarúgó akadémiai intézmények sajátos világába, ezáltal megismerhetjük az ott fejlődő fiatalok véleményeit az akadémiák ellátottságáról, esetleges hiányosságairól.
Using Prostatic Fluid Levels of Zinc to Bromine Concentration Ratio in Non-Invasive and Highly Accurate Screening for Prostate Cancer
Authors: Zaichick Vladimir , Zaichick Sofia
Published: December 2019

Prostate specific antigen (PSA) does not provide the high reliability and precision that is required for an accurate screening for prostate cancer (PCa). The aim of our study was to search for a simple, rapid, direct, preferably non-invasive, and highly accurate biomarker and procedure for the screening for PCa. For this purpose the levels of bromine (Br) and zinc (Zn) were prospectively evaluated in expressed prostatic fluid (EPF). Also Zn/Br concentration ratio was calculated for EPF samples, obtained from 38 apparently healthy males and from 33, 51, and 24 patients with chronic prostatitis (CP), benign prostatic hyperplasia (BPH) and PCa, respectively. Measurements were performed using an application of energy dispersive X-ray fluorescent (EDXRF) microanalysis developed by us. It was found that in the EPF of cancerous prostates the levels of Zn and Zn/Br were significantly lower in comparison with those in the EPF of normal, inflamed, and hyperplastic prostates. It was shown that “Sensitivity”, “Specificity” and “Accuracy” of PCa identification using the Zn and Zn/Br levels in the EPF samples were all significantly higher than those resulting from of PSA tests in blood serum. It was concluded that the Zn and Zn/Br levels in EPF, obtained by EDXRF, is a fast, reliable, and non-invasive diagnostic tool that can be successfully used by local, non-urologist physicians at the point-of-care to provide a highly effective PCa screening and as an additional confirmatory test before a prostate gland biopsy.
Creating space to think and feel – Reflections on teaching, learning and practice in social work, with insights from social pedagogy
Authors: Ganpatsingh James
Published: December 2019

The stories and identities of people who use social work services are often obscured by mass media stereotypes and labels – ‘failed asylum seekers’, ‘scroungers’, ‘troubled families’. The influence of managerialism compounds this problem, with space for thinking and feeling continually under pressure. This practice paper draws on ideas from social pedagogy to reflect on the benefits of a creative attempt to connect heads and hearts in the academy. Informed by an approach used with nursing students in Australia, social work undergraduates in London (England) were encouraged to engage with a range of creative media (newspapers, films, television, plays, social media) and journal about what they noticed. Drawing on narrative ideas, students reflected on portrayals of people that were ‘thin’ – labelling and oppressive – and ‘thick’ – revealing a richer picture of people’s lives, needs and capabilities. After putting together short stories or accounts of their own, based on their journaling, students were invited to share these in a type of ‘reflecting team’ with peers. This process invited students to develop critical and ethical perspectives through thinking about what had struck them, what they had understood differently about the service user groups, what resonated with them personally, and how this might affect their practice. This small example of creative practice is considered as part of a wider reflection on the value of a rich curriculum for social work education, holding out hope for humane practice in challenging times.
Artefatos culturais e a abordagem sobre gênero e sexualidade: a revista Nova Escola
Authors: Petrenas Rita de Cássia
Published: December 2019

O trabalho teve como objetivo analisar os artigos sobre a temática sexualidade e gênero presentes na revista Nova Escola, no período de 2000 a 2017.  Trata-se de uma pesquisa documental, utilizando para análise dos artigos a Análise de Conteúdo Temática. A pesquisa identificou um considerável número de artigos que abordam assuntos variados que podem enriquecer o aprendizado e a prática docente, bem como as experiências construídas no cotidiano das escolas. Conclui-se que para tanto, é preciso que os educadores percebam os limites da produção jornalística destinada aos docentes. Dentre esses limites podemos apontar a linguagem simplificada, textos com caráter prescritivo, valorização de modismos e inovações pedagógicos, e a aposta exagerada no empenho dos docentes para achar a solução para os problemas pedagógicos, culturais e sociais que abrangem a prática educativa.
As concepções de linguagem e a formação de professores do ensino bilingue em Moçambique
Authors: Arena Dagoberto Buim , Covane Lourenço Alfredo
Published: December 2019

Este artigo propõe a reformulação dos planos curriculares de formação de professores primários em Moçambique, no que diz respeito às concepções da linguagem. Para os estudiosos do marxismo e filosofia da linguagem os quais apoiam este trabalho, a natureza da linguagem é social, por esse motivo deve ser estudada no meio das relações sociais onde ela acontece. A pesquisa privilegia a leitura de trabalhos académicos produzidos, principalmente no contexto nacional, passando pela análise dos planos curriculares de formação de professores primários e da legislação sobre o Sistema Nacional da Educação (SNE). As conclusões apontam que foram construídos, desde a Independência Nacional até a data de hoje, vários modelos de formação de professores primários e, em quase todos, domina uma abordagem fônica no ato de apropriação da linguagem, tanto na disciplina de português quanto na disciplina da língua materna.
Formação de professores alfabetizadores pelo Programa Pacto Nacional de Alfabetização na Idade Certa: reflexões sobre avaliação realizada por municípios
Authors: Schmidt Leonete Luzia , Souza Jacqueline de
Published: December 2019

O objetivo do presente artigo é conhecer como os municípios avaliaram a implementação e realização da formação continuada de professores no PNAIC. Para tanto foi necessário verificar quem era responsável pelo acompanhamento das ações do Pacto no município; identificar como era realizada a avaliação desse programa; e analisar a relação entre o que consta na proposta do Pacto e a avaliação realizada pelos municípios. Teve como procedimento metodológico a pesquisa documental e de campo, esta última realizada na Associação dos Municípios da Região de Laguna (AMUREL). Os resultados mostraram que os municípios assinaram o Pacto e designaram coordenação local e orientadores de estudos, sendo estes os responsáveis pela avaliação, e consideraram que a formação fora exitosa. No entanto, não foi constatado movimento por parte dos municípios no sentido de fazer com que a proposta de alfabetização trabalhada na formação fosse transformada em política pública de alfabetização nos municípios.
Conhecer trajetórias de estudantes negros(as) do ensino médio para transformar histórias de vida
Authors: Silva Natalino Neves da , Bernardo Helenilce Aparecida da Costa
Published: December 2019

Este artigo resulta de uma pesquisa no ensino médio que fez parte do projeto Núcleo de Estudos Africanos, Afro-brasileiros e da Diáspora (UBUNTU/NUPEAAs) da Secretaria de Estado de Educação de Minas Gerais (SEE-MG), com a participação de treze estudantes pesquisadores(as) em uma escola pública localizada em Poços de Caldas, Minas Gerais. O problema proposto consistiu em entender como jovens estudantes negros(as) lidam com o processo de construção identitário étnico-racial. Foram aplicados 950 questionários com o intuito de mapear o perfil estudantil. Além disso, foram feitas ainda entrevistas semiestruturadas por meio de quatro grupos focais. Os resultados alcançados apontam que a constituição identitária étnico-racial dos(as) jovens negros(as) se manifesta em meio à vivência de uma trajetória marcada pelo racismo, preconceito e discriminação racial. Essa constatação implica a necessidade de investir em práticas educativas voltadas para a promoção da igualdade étnico-racial.
PRIMER REPORTE DE Spodoptera eridania (Stoll) (Lepidoptera: Noctuidae) EN EL CENTRO DE LA PROVINCIA DE SANTA FE
Authors: LUTZ A. , BERTOLACCINI I. , SCOTTA R. R. , MANTICA F. , MAGLIANO M. F. , SANCHEZ P. D. , CURIS M. C.
Published: December 2019

Este trabajo reporta por primera vez la presencia de Spodoptera eridania (Stoll) en el centro de la Provincia de Santa Fe. Larvas del género Spodoptera fueron recolectadas en un lote de soja Bt y trasladadas a la cámara de cría (FCA-UNL), donde se obtuvo la primera generación. Mediante claves taxonómicas se corroboró que la especie recolectada era S. eridania, plaga de origen tropical presente en el noroeste de Argentina, de hábito polífago que ocasiona daños al alimentarse de hojas y frutos en formación en varios cultivos de importancia económica. Además esta especie es tolerante a la proteína Bt y resistente a insecticidas de uso convencional. Al alimentar las larvas con hojas de soja Bt, completaron su ciclo biológico de manera exitosa. No existe información acerca del comportamiento de esta especie en el centro de la provincia de Santa Fe.
EFICIENCIA DE USO DE AGUA Y RADIACIÓN EN SOJA BAJO COMPETENCIA CON SORGO DE ALEPO
Authors: PIETROBÓN M. , IMVINKELRIED H. O. , DELLAFERRERA I. M. , GARIONE G. , HAIDAR L.
Published: December 2019

El objetivo de este trabajo fue evaluar la eficiencia en el uso de agua y radiación (EUA y EUR) de dos variedades de soja creciendo bajo diferentes densidades de plantas, espaciamiento entre surcos y competencia con sorgo de Alepo resistente a glifosato. De forma general, la presencia de malezas redujo la materia seca total, el rendimiento, la EUA y la EUR. El aumento en la densidad y la disminución del espaciamiento entre surcos mejoró la EUA y la EUR e incrementó la materia seca total y el rendimiento. La variedad de mayor grupo de madurez acumuló más materia seca que el de menor grupo de madurez. Sin embargo, ambas variedades presentaron similares rendimientos y EUR.
Der Begriff des Lebens in der Klassischen Deutschen Philosophie – eine naturphilosophische oder lebensweltliche Frage?
Authors: Sandkaulen Birgit
Published: December 2019

In this paper, I point to two connotations that come with the concept of ‘life’: it may refer to the natural phenomenon oforganic lifestudied by the “life sciences” and philosophy of nature –Naturphilosophie– but it may equally refer to the lives we lead in a complexlifeworld. Of course, natural features belong to the lifeworld as well. However, the lifeworld is also shaped by various individual and cultural practices and, as such, it is not reducible to the natural. I defend a twofold claim: first, a genuine interest in the lifeworld informs Classical German Philosophy throughout on a meta-level; second, it is this interest in the lifeworld that grounds and motivates considerations of natural phenomena in Classical German Philosophy. I trace the shared interest in the lifeworld from Hegel, Schelling, and Fichte back to Friedrich Heinrich Jacobi’s formative ideas. Jacobi profoundly influenced the debates in Classical German Philosophy with his “resolute realism.”
Operative production planning utilising quantitative forecasting and Monte Carlo simulations
Authors: Fabianova Jana , Kacmary Peter , Janekova Jaroslava
Published: December 2019

Demand forecasting is very often used in production planning, especially, when a manufacturer needs in a longer production cycle to respond flexibly to market demands. Production based on longer-term forecasts means bearing the risk of forecast unreliability in the form of finished product inventory deficit or excess. The use of computer simulation allows us to improve the planning process and optimise the plan for the intended goal. This paper presents the use of quantitative forecasting and computer simulations to create the production plan. Two approaches to production plan creation are demonstrated in a model case study. Products are characterized by varying demand and are produced on a single production line in continuous operation. The first approach uses ARIMA(2,0,2) (Auto-Regressive Integrated Moving Average) prognostic method selected as the most reliable method based on MAPE (Mean Absolute Percent Error). The second method applies Monte Carlo simulations and optimisation. The aim of the plan optimisation is minimisation the total costs connected with line rebuilding and storage of products. The comparison of the two approaches shows that planning using computer simulations and optimisation leads to lower total costs.
Calibration of Transducers and of a Coil Compression Spring Constant on the Testing Equipment Simulating the Process of a Pallet Positioning in a Rack Cell
Authors: Hrabovský Leopold , Dluhoš David
Published: December 2019

In a parking house with KOMA TOWER computer-controlled automated parking system it happens that a control system is locked out of service after a pallet has failed to reach the required position during the shifting of pallets, loaded with cars, into rack cells.

In this paper is described testing equipment designed by the Institute of Transport, Faculty of Mechanical Engineering, VŠB Technical University of Ostrava for the purpose of simulating the process of pallets shifting into the rack cells in order that the frequency of error messages from the control system during the automated process of cars positioning in rack cells in the parking house may be limited.

The paper details two completed parts of the designed testing equipment which provide for the calibration of strain-gauge force transducers and for the detection of coil compressive spring compression in relation to acting pressure force.

The description of the third, principal design part will be provided in the next paper, together with the experimentally measured acting forces which generate, in both horizontal and vertical directions, as a pallet brake pulley rolls along a brake haunch length.
A stability result for the determination of order in time-fractional diffusion equations
Authors: Li Zhiyuan , Huang Xinchi , Yamamoto Masahiro
Published: December 2019

This paper deals with an inverse problem of the determination of the fractional order in time-fractional diffusion equations from one interior point observation. We give a representation of the solution via the Mittag-Leffler function and eigenfunction expansion, from which the Lipschitz stability of the fractional order with respect to the measured data at the interior point is established.
Nomenclature for boranes and related species (IUPAC Recommendations 2019)
Authors: Beckett Michael A. , Brellochs Bernd , Chizhevsky Igor T. , Damhus Ture , Hellwich Karl-Heinz , Kennedy John D. , Laitinen Risto , Powell Warren H. , Rabinovich Daniel , Viñas Clara , Yerin Andrey
Published: December 2019

An appraisal of the current IUPAC recommendations for the nomenclature of boranes and related systems has been undertaken. New developments in the field have been investigated and existing nomenclature systems have been adapted to accommodate these new developments. The principal areas considered are stoichiometric and structural nomenclature (including heteroatom and metal-atom subrogation, as well as substitution of hydrogen), conjoined-cage species, supra-icosahedral systems, and sub-icosahedral non-standard structures. Elements of substitutive, additive, and replacement nomenclature systems have been integrated into individual names to address contentious problems in boron nomenclature that have been around for a long time.
Diagnostics of coupling between low-frequency loops in cardiovascular autonomic control in adults, newborns and mathematical model using cross-recurrence analysis
Authors: Ishbulatov Yurii M. , Kiselev Anton R. , Mureeva Elena N. , Popova Yulia V. , Kurbako Alexander V. , Gridnev Vladimir I. , Bezruchko Boris P. , Simonyan Margarita A. , Borovkova Ekaterina I. , Posnenkova Olga M. , Panina Olga S. , Chernenkov Yurii V. , Karavaev Anatoly S.
Published: December 2019

The aim of study is to investigate effectiveness of cross-recurrence analysis for the detection of coupling between the loops of heart rate and vessel tone sympathetic control. The cross-recurrence analysis is applied to the interbeat intervals and photopletysmographic signals from the mathematical model of cardiovascular system and from adults and newborn children. The model is examined under the conditions of the four experiments: with fully operational autonomic control, autonomic control weakened by 40%, autonomic control weakened by 70% and autonomic blockade. The coupling is most pronounced in adult subjects and the model with fully operational autonomic control, while it is absent under the autonomic blockade. Autonomic control is also not fully developed in newborn children. As the result, smaller coupling strength is expected. The results of cross-recurrence analysis of the model and experimental data are compared with the results of coupling detection based on the analysos of phase synchronization. Synchronization index demonstrates good correlation with the coupling strength in the model and weak coupling in newborn children in relation to adult subjects. In both cases, no correlation is observed between the synchronization index and the results of cross-recurrence analysis.
The state of periodontum and cardiovascular risk factors in adolescents with high blood pressure
Authors: Pogodina Anna V. , Kolesnikova Larisa R. , Valyavskaya Olga V. , Zurbanova Liliya V. , Rychkova Lyubov V.
Published: December 2019

Objective — To establish significant associations between periodontium status, circadian blood pressure (BP) profile and cardiovascular risk factors in adolescents with high BP. Material and Methods — The cross-sectional study involved 113 adolescents (78 boys) aged 10 to 17 years, with a BP level (during repeated office measurements) of ≥95 percentile for age, height and sex, or ≥140/90 mmHg in adolescents older than 16 years. All adolescents were subjected to 24-hour blood pressure monitoring, anthropometric measurements, laboratory blood tests (lipids, uric acid, alanine aminotransferase, aspartate aminotransferase, fasting glucose), echocardiography (left ventricular myocardial mass index, relative wall thickness), assessment of the stage of puberty, dental examination (complex periodontal index (CPI), oral hygiene index). The association between the periodontium status and cardiovascular risk factors was assessed using univariant and multiple regression analysis, adjusted by sex, age, Tanner stage, body mass index, and oral hygiene index. Results — Clinical features of periodontitis were found in 32.7% of adolescents. Multiple regression analysis showed the presence of significant associations of CPI with the levels of systolic, mean and pulse BP during 24 hours (β=0.42, р=0.0001; β=0.31, р=0.003 and β=0.26, р=0.018, respectively), diastolic BP in the daytime (β=0.23, р=0.019), as well as the indices of load with high systolic BP within 24 hours (β=0.42, р=0.0001) and diastolic BP in the daytime (β=0.25, р=0.006). None of the other cardiovascular risk factors showed meaningful relationships with periodontium status in the multivariate analysis. Conclusion — The relationship between periodontium status and blood pressure level exists already in adolescence. That may, on the one hand, justify assessment of periodontium status and (if necessary) timely implementation of prophylactic measures in adolescents with high blood pressure and, on the other hand, recommend BP assessment in adolescents with diagnosed periodontitis.
Bertolt Brecht y las miserias del tercer Reich
Authors: Baro Vaquero Alba
Published: December 2019

El artículo propone un análisis de la obra de Bertolt Brecht Terror y Miseria del Tercer Reich. Si esta ha sido considerada normalmente una de sus obras menos brechtianas, más apegadas a la dramática tradicional, en nuestra lectura trataremos de enfatizar todos sus elementos representativos del teatro épico, derivados del método brechtiano y característicos de su peculiar concepción del arte y la realidad. De este modo iremos profundizando en cómo el dramaturgo afronta en su teatro una época tan difícil como la del dominio nazi y el obligado exilio. Como resultado, veremos que esta obra puede considerarse una afirmación, adaptada a su particular contexto, del firme propósito de Brecht de hacer un arte comprometido con la verdad.
Hitos de la recepción crítica de la obra de Hoffmann en México (1855-1917)
Authors: Hernández Roura Sergio Armando
Published: December 2019

Uno de los aspectos fundamentales del fenómeno de recepción de E.T.A. Hoffmann en México está constituido por las reacciones que sus obras suscitaron en el público lector. El objeto del presente trabajo es dar cuenta de las principales críticas que recibieron las obras de Hoffmann en México durante el siglo XIX y principios del XX. A este respecto, los juicios emitidos en Europa son importantes para entender el camino que siguieron las interpretaciones dadas en México a su obra. Las opiniones expresadas a través de la prensa mexicana basaron sus apreciaciones en ellas en un primer momento, para luego, en un evidente proceso de adecuación, asimilación y desarrollo, ser utilizadas en la reflexión sobre la obra del alemán.
Rational cuboids and Heron triangles II
Authors: Mazėtis Edmundas , Melničenko Grigorijus
Published: December 2019

We study the connection of Heronian triangles with the problem of the existence of rational cuboids. It is proved that the existence of a rational cuboid is equivalent to the existence of a rectangular tetrahedron, which all sides are rational and the base is a Heronian triangle. Examples of rectangular tetrahedra are given, in which all sides are integer numbers, but the area of the base is irrational. The example of the rectangular tetrahedron is also given, which has lengths of one side irrational and the other integer, but the area of the base is integer.
Comparison of intermediate Lithuanian mathematics programs with the 1912 Viurtemberg mathematics program in Germany
Authors: Ragalytė Birutė , Paukštienė Alma
Published: December 2019

The article compares interwar Lithuanian mathematics programs with Württemberg mathematics programs in German land. The inﬂuence of Klein’s ideas on the content of the programs is presented.
Clustering through Decision Tree Construction in Geology
Authors: Juozapavičius J. , Rapševičius V.
Published: December 2019

The article presents a tool to analyze the application of efficient algorithms of data mining, namely hierarchical clustering algorithms to be used in the analysis of geological data. It introduces a description of hierarchical clustering principles and methods for learning dependencies from geological data. The authors are using statistical formulation of algorithms to represent the most natural framework for learning from data. The geological data come from mining holes, and describe the structure of sedimental layers of vertical section of geological body. The analysis of such data is intended to give a basis for uniform description of lithological characteristics, and for the identification of them via formal methods.
Asymptotic Expansion for the Distribution and Density Functions of the Quadratic Form of a Stationary Gaussian Process in the Large Deviation Cramer Zone
Authors: Saulis L.
Published: December 2019

The work considers the asymptomic expansions in the large deviation Cramer zone for the distribution and its density functions of the quadratic form a stationary Gaussian sequence. To this end the general authors lemma [1], [3] for an arbitrary random variable with regular behavior of its cumulants is used.
Asymptotics of the Joint Distribution of Multivariate Extrema
Authors: Aksomaitis A. , Jokimaitis A.
Published: December 2019

Let Wn and Zn be a bivariate extrema of independent identically distributed bivariate random variables with a distribution function F. in this paper the nonuniform estimate of convergence rate of the joint distribution of the normalized and centralized minima and maxima is obtained.
Comparison of Nonlinear Spatial Correlation Models by the Influence of the Data Augmentation to the Classification Risk
Authors: Šaltytė J. , Dučinskas K.
Published: December 2019

The Bayesian classification rule used for the classification of the observations of the (second-order) stationary Gaussian random fields with different means and common factorised covariance matrices is investigated. The influence of the observed data augmentation to the Bayesian risk is examined for three different nonlinear widely applicable spatial correlation models. The explicit expression of the Bayesian risk for the classification of augmented data is derived. Numerical comparison of these models by the variability of Bayesian risk in case of the first-order neighbourhood scheme is performed.
Controlling Chaos and Bifurcation of Subsynchronous Resonance in Power System
Authors: Harb A. M. , Widyan M. S.
Published: December 2019

Linear and nonlinear state feedback controllers are proposed to control the bifurcation of a new phenomenon in power system, this phenomenon of electro-mechanical interaction between the series resonant circuits and torsional mechanical frequencies of the turbine generator sections, which known as Subsynchronous Resonance (SSR). The first system of the IEEE second benchmark model is considered. The dynamics of the two axes damper windings, Automatic Voltage Regulator (AVR) and Power System Stabilizer (PSS) are included. The linear controller gives better initial disturbance response than that of the nonlinear, but in a small narrow region of compensation factors. The nonlinear controller not only can be easily implemented, but also it stabilizes the operating point for all values of the bifurcation parameter.
Kinetic Model of Biphasic Character of Catalyse Inhibition
Authors: Kulys J. , Kriaučiūnas K. , Vidžiūnaitė R.
Published: December 2019

A mathematical model of kinetics of fungal catalase inhibition with hydroxylamine in presence of substrate (hydrogen peroxide) has been developed. The scheme includes an intermediate formation and slow reversible native enzyme production. The model is based on differential equations of nonstationary kinetics of the enzyme action. The computer simulation was carried out using adaptive Runge-Kuta method.

Good satisfactory is achieved if the kinetic constants calculated by modeling nonstationary state of hydrogen peroxide decomposition are used for calculations of inhibition of the catalases at the second phase of inhibition and for kinetics of the intermediate formation, that was determined with stop-flow spectrophotometer.
Cauchy Problem for Equations with Fractional Differentiation Bessel Operator in the Space of Temperate Distributions
Authors: Litovchenko V.
Published: December 2019

The well-posedness of the Cauchy problem, mentioned in title, is studied. The main result means that the solution of this problem is usual C∞ - function on the space argument, if the initial function is a real functional on the conjugate space to the space, containing the fundamental solution of the corresponding problem. The basic tool for the proof is the functional analysis technique.
Modeling Enzymes Inhibition During Microparticles Formation
Authors: Kulys J.
Published: December 2019

A mathematical model of enzymes inhibition during microparticles formation has been developed. The model is based on radial substrate diffusion through diffusion layer that surrounds microparticle. The inhibition of enzymes was explained by enzyme adsorption on surface of the microparticles and substrate diffusion limitation through the diffusion layer. The diffusion module is dependent on dimensions of the microparticle. The microparticles with diameter 2 µm may ensure 50% of an apparent activity decrease if half of peroxidase has been adsorbed. Further adsorption of peroxidase and aggregation of the microparticles increases the apparent inhibition.
Modelling Light Transmission in a Fiber-Optical Reflection System
Authors: Kleiza V.
Published: December 2019

Light transmission in the reflection fiber system, located in external optical media, has been investigated for application as sensors. The system was simulated by different models, including external cavity parameters such as the distance between light emitting and receiving fibers and mirror positioning distance. The sensitivity to a linear displacement of the sensors was studied as a function of the distance between the tips of the light emitting fiber and the center of the pair reflected light collecting fibers, by positioning a mirror. Physical fundamentals and operating principles of the advanced fiber optical sensors were revealed.
On the Eigenvalue Problem for One-Dimensional Differential Operator with Nonlocal Integral Condition
Authors: Čiupaila R. , Jesevičiūtė Ž. , Sapagovas M.
Published: December 2019

The article investigates the eigenvalue problem for ordinary onedimensional differential operator with nonlocal integral condition. Such a problem is met in the literature quite rarely and is considerably less investigated. Also the conditions for existence of non-positive eigenvalue or multiple eigenvalues are obtained.
The Model for Calculation the Hall Effect Parameter
Authors: Kleiza J. , Kleiza V.
Published: December 2019

A method for calculating the values of specific resistivity ρ as well as the product µHB of the Hall mobility and magnetic induction on a conductive sample of an arbitrary geometric configuration with two arbitrary fitted current electrodes of nonzero length and has been proposed an grounded. During the experiment, under the constant value U of voltage and in the absence of the magnetic field effect (B = 0) on the sample, the current intensities I(0), IE(0) are measured as well as the mentioned parameters under the effect of magnetic fields B1, B2 (B1 ≠ B2), i.e.: IE(β(i)), I(β(i)), i = 1, 2. It has been proved that under the constant difference of potentials U and sample thickness d, the parameters I(0), IE(0) and IE(β(i)), I(β(i)), i = 1, 2 uniquely determines the values of the product µHB and specific resistivity ρ of the sample. Basing on the conformal mapping method and Hall’s tensor properties, a relation (a system of nonlinear equations) between the above mentioned quantities has been found.
Passage of Abrikosov Vortexes through a Boundary Barrier in Thin Superconducting Film
Authors: Pyragas V.
Published: December 2019

The model of Abrikosov vortices motion from the edges of thin superconducting film, when the current slightly exceeds the critical current, is considered. It is shown that the additional dynamic barrier is formed in the regions of a weak pinning. It is assumed for simplicity that the group of vortices is derived in the shape of one-dimensional chain. It is demonstrated, that the barrier hinders the penetration of such a chains in the film.
Natural convection from a Plane Vertical Porous Surface in Non Isothermal
Authors: Saha S. C.
Published: December 2019

In this paper, laminar natural convection flow from a permeable and isothermal vertical surface placed in non-isothermal surroundings is considered. Introducing appropriate transformations into the boundary layer equations governing the flow derives non-similar boundary layer equations. Results of both the analytical and numerical solutions are then presented in the form of skin-friction and Nusselt number. Numerical solutions of the transformed non-similar boundary layer equations are obtained by three distinct solution methods, (i) the perturbation solutions for small ξ (ii) the asymptotic solution for large ξ (iii) the implicit finite difference method for all ξ where ξ is the transpiration parameter. Perturbation solutions for small and large values of ξ are compared with the finite difference solutions for different values of pertinent parameters, namely, the Prandtl number Pr, and the ambient temperature gradient n.
Computational Modelling of a Sensor Based on an Array of Enzyme Microreactors
Authors: Baronas R. , Ivanauskas F. , Kulys J. , Sapagovas M.
Published: December 2019

This paper presents a two-dimensional-in-space mathematical model of a sensor system based an array of enzyme microreactors immobilised on a single electrode. The system acts under amperometric conditions. The model is based on the diffusion equations containing a non-linear term related to the Michaelis-Menten kinetics of the enzymatic reaction. The model involves three regions: an array of enzyme microreactors (cells) where enzyme reaction as well as mass transport by diffusion takes place, a diffusion limiting region where only the diffusion takes place, and a convective region, where the analyte concentration is maintained constant. Using computer simulation the influence of the geometry of the enzyme cells and the diffusion region on the biosensor response was investigated. The digital simulation was carried out using the finite difference technique.
Information Transmission Concept Based Model of Wave Propagation in Discrete Excitable Media
Authors: Raudys Š.
Published: December 2019

A new information transmission concept based model of excitable media with continuous outputs of the model’s cells and variable excitation time is proposed. Continuous character of the outputs instigates infinitesimal inaccuracies in calculations. It generates countless number of the cells’ excitation variants that occur in front of the wave even in the homogenous and isotropic grid. New approach allows obtain many wave propagation patterns observed in real world experiments and known simulation studies. The model suggests a new spiral breakup mechanism based on tensions and gradually deepening clefts that appear in front of the wave caused by uneven propagation speed of curved and planar segments of the wave. The analysis hints that the wave breakdown and daughter wavelet bursting behavior possibly is inherent peculiarity of excitable media with weak ties between the cells, short refractory period and granular structure. The model suggested is located between cellular automaton with discrete outputs and differential equation based models and gives a new tool to simulate wave propagation patterns in applied disciplines. It is also a new line of attack aimed to understand wave bursting, propagation and annihilation processes in isotropic homogenous media.
Preparation, Electronic Structure and Optical Properties of the Electrochromic Thin Films
Authors: Lukaszewicz T. , Ravinski A. , Makoed I.
Published: December 2019

A new multilayer electrochromic device has been constructed according to the following pattern: glass1/ITO/WO3/gel electrolyte/BP/ITO/glass2, where ITO is a transparent conducting film made of indium and tin oxide and with the surface resistance equal 8–10 Ω/cm2 . The electrochromic devices obtained in the research are characterized by great (considerable) transmittance variation between coloration and bleaching state (25–40% at applied voltage of 1.5 to 3 V), and also high coloration efficiency (above 100 cm2 /C). Selfconsistent energy bands, dielectric permittivity and optical parameters are calculated using a full-potential linear muffin-tin orbital method. The numerical solution of the Debye-Smoluchowski equations is developed for simulating recombination probability of Li+ ions in amorphous electrolyte.
Aldous Huxley’s Poetry of Silence
Authors: Shadurski Maxim
Published: December 2019

Utopian thought, conventionally seeking to harmonize the world, witnessed an essential revision in the 20th century. This period of grand political and social upheavals, world wars, an arms race, scientific and technological progress, ecological concerns, and globalization radically undermined mankind’s faith in the humanistic potential of utopian projects. However, in Aldous Huxley’s writings, the intention to summon up a utopian experiment superseded any agonies of doubt about programmes of social reconstruction. Huxley turned to utopia when mass distrust in the constructive impulse of the genre had become notable in the socio-cultural climate. In Huxley’s last novel, Island (1962), “the poetry of silence” can be seen to render an optimistic response to the unholy state of the world.This article examines the novel’s lyrical interspersions, which arguably create a specific concept of silence through a series of thematic explorations comprising the ideas of noiselessness, speechlessness, and peace. The idea of noiselessness endorses a form of overcoming the world’s invincible cacophony. This kind of omnipotent dissonance can be diminished only by a supernatural power which integrates man’s disparate relationships with the universe. Like Nature for Wordsworth, Huxley’s image of the noiseless movement of the world unveils an image of unity to those who bring with them “a heart that watches and receives.” The idea of speechlessness surfaces in the lyrical fragments of the novel that touch upon intuition. Intuitive discoveries lie at the heart of a religion unfettered from dogma, and allow access to the perennial wisdom which becomes “suddenly visible” through the act of elevation to the summit of the universe. The idea of peace is placed outside the conventional frame of existential discrepancies. For this reason, the image of Shiva is meant to transcend the opposition of life and death. As long as Shiva dances simultaneously in all the planes of reality, the Palanese can learn from him how to exist in non-attachment. The acceptance of the world’s entropic progression checked by the poetry of silence leads the protagonist to a spiritual awakening and stirs his empathy for the utopian order realized in Pala.The poetry of silence embraces the beauty of the world which comes into existence from what Huxley calls a “pregnant emptiness.” The mystery of this creation cannot be subjected to any scientific, philosophical, or even theological systems of reference. One may only sense this mystery without reasoning. Wisdom converges with the skyin emptiness, dubbed “the womb of love,” and creates a universe from the poetry of silence. In Island, utopian thought, traditionally focusing on the regular patterns of a perfect society and state, attains a mystical profile promoted by the poetry of silence.