bluuebunny/crossref_metadata_2025 huggingface dataset:
PERÍODOS DE INTERFERÊNCIA DE PLANTAS DANINHAS NO CULTIVO DE SORGO GRANÍFERO, COM E SEM ADUBAÇÃO NITROGENADA DE COBERTURA
Authors: ROSA JIVAGO OLIVEIRA , YAMAUTI MICHELI SATOMI , SORALUZ JORGE LUIS TEJADA , ALVES PEDRO LUÍS DA COSTA AGUIAR
Published: October 2018

RESUMO - O trabalho teve como objetivo determinar o efeito da adubação nitrogenada de cobertura sobre a comunidade infestante e sobre os períodos de interferência das plantas daninhas na cultura do sorgo granífero ‘882’, em sistema convencional. Foram estudados os períodos de convivência e controle de 0, 7, 14, 32, 42, 57, 72 e 118 dias após a emergência (DAE), totalizando dezesseis tratamentos, dispostos em blocos casualizados, com quatro repetições, em dois níveis de adubação, 0 e 70 kg ha-1 de N. A adubação não alterou a composição da comunidade infestante, destacando-se Raphanus raphanistrum, Cyperus rotundus, Alternanthera tenella e Amaranthus ssp. como as espécies de maior importância relativa. Os períodos críticos de prevenção da interferência (PCPI) do sorgo ‘822’ com e sem adubação foi de 4 aos 72 e 7 aos 90 DAE, respectivamente. A interferência das plantas daninhas reduziu em 31 e 26% a produtividade estimada de 6859,5 e 6417,1 kg ha-1 de grãos do sorgo na presença e na ausência da adubação nitrogenada, respectivamente, sendo que adubação nitrogenada realizada aos 45 dias após a emergência da cultura aumentou em 7% a sua produtividade.Palavras-chave: Sorghum bicolor, competição, nitrogênio. WEED INTERFERENCE PERIODS ON GRAIN SORGHUM CROP WITH AND WITHOUT NITROGEN FERTILIZATION  ABSTRACT - The aim of this work was to determine the effect of nitrogen fertilization on the weed community and on the periods of interference of weeds in the ‘882’ grain sorghum in a conventional system. The periods of coexistence and control were 0, 7, 14, 32, 42, 57, 72 and 118 days after emergence (DAE), totaling sixteen treatments, arranged in randomized blocks, with four replications, at two levels of fertilization, 0 and 70 kg ha-1 of N. Fertilization did not change the composition of the weed community, with the species Raphanus raphanistrum, Cyperus rotundus, Alternanthera tenella and Amaranthus ssp. being the most important at all levels of fertilization. The critical periods of interference prevention (CPIP) of sorghum ‘822’ with and without fertilization were 4 at 72 and 7 at 90 DAE, respectively. Weed interference reduced the estimated yield of 6859.5 and 6417.1 kg ha-1 of sorghum grains by 31 and 26% in the presence and absence of nitrogen fertilization, respectively, and nitrogen fertilization done at 45 days after the emergence of the crop increased its productivity by 7%.Keywords: Sorghum bicolor, competition, nitrogen.
EFICIÊNCIA DE BIOESTIMULANTES E FUNGICIDA NOS CARACTERES AGRONÔMICOS E ECONÔMICOS NA CULTURA DO MILHO VERDE
Authors: FRANCISCHINI RICARDO , SILVA ALESSANDRO GUERRA DA , TESSMANN DAURI JOSÉ
Published: October 2018

RESUMO - O objetivo do trabalho foi avaliar o desempenho agronômico e econômico na cultura do milho verde submetida ao uso de bioestimulantes na presença e ausência de fungicida. Dessa forma, dois experimentos foram conduzidos em anos distintos, em delineamento experimental de blocos ao acaso com três repetições, em arranjo fatorial 4x2. O primeiro fator correspondeu à combinação de bioestimulantes (Ausência, MC Cream, MC Extra, MC Cream+MC Extra) e o segundo fator à presença e ausência de fungicida (piraclostrobina + epoxiconazole). Foi avaliado o peso de espigas verdes, a altura de plantas, diâmetro de colmo, teor de clorofila e severidade de doenças, além da viabilidade econômica dos tratamentos. Os Bioestimulantes, na ausência de fungicida, foram eficientes para aumentar o peso das espigas verdes, altura de plantas, e o teor de clorofila. Na presença do fungicida os bioestimulantes aumentaram o diâmetro de colmo e reduziram a severidade de doenças. Os investimentos em insumos elevaram os custos de produção, porém a rentabilidade foi compensada pelo aumento da renda bruta. Em situação de baixa disponibilidade hídrica, o bioestimulante MC Extra foi o mais viável economicamente para a cultura do milho verde.Palavras-chave: fitossanidade, produtividade, renda líquida, Zea mays L. EFFICIENCY OF BIOSTIMULANTS AND FUNGICIDE IN THE AGRONOMIC AND ECONOMIC CHARACTERS OF GREEN CORN  ABSTRACT – The objective of this work was to evaluate the agronomic and economic performance of the green corn crop, subjected to the use of biostimulants in the presence and absence of fungicide. Two experiments were conducted in different years using a randomized block design with three replications, in a 4x2 factorial arrangement. The first factor corresponded to the combination of biostimulants (Absence, MC Cream, MC Extra, MC Cream + MC Extra) and the second factor was the presence and absence of fungicide (pyraclostrobin + epoxiconazole). Green ear weight, plant height, stem diameter, chlorophyll content and severity of diseases were evaluated, as well as the economic viability of the treatments.In the absence of fungicide, biostimulants were efficient to increase the green ear weight, plant height, and chlorophyll content. In the presence of the fungicide, biostimulants increased stem diameter and reduced disease severity. Investments in inputs increased production costs, but profitability was offset by the increase in gross income. In a situation of low water availability, the biostimulant MC Extra was the most economically viable for the green maize crop.Keywords: plant health, productivity, net income, Zea mays L.
Koroner yavaş akımın ortalama trombosit nacmi/lenfosit oranı ile İlişkisi
Authors: GÖK Murat , KURTUL Alparslan
Published: October 2018

Amaç: Bu çalışmanın amacı, kolayca hesaplanabilen yeni bir inflamatuar belirteç olan
ortalama trombosit hacmi/ lenfosit oranının koroner yavaş akım şiddeti ile
ilişkisini araştırmaktır.Gereç ve Yöntemler: Kesitsel tipte yapılan bu çalışmada, Nisan 2016 ile
Nisan 2017 tarihleri arasında hastanemize başvuran toplam 166 hasta dahil
edilmiştir. Koroner yavaş akım grubuna 83 hasta, normal koroner akım grubuna 83
hasta dahil edildi. Tüm hastaların koroner akım hızları Timi Kare Sayımı (TIMI)
yöntemi ile hesaplanmıştır. Tüm verilerin analizi için SPSS 22.0 istatistiksel
paket programı kullanılmıştır.Bulgular: Ortalama trombosit hacmi/ lenfosit oranı, koroner
yavaş akım grubunda normal koroner akım grubuna göre istatistiksel olarak daha
anlamlı bulundu. (p <0.001) Çok değişkenli lojistik regresyon analizinde,
ortalama trombosit hacmi/ lenfosit oranı koroner yavaş akımın bağımsız öngördürücüsü
olduğu bulundu. (p <0.001) Buna ek olarak, HsCRP, total kolesterol, HDL ile
koroner yavaş akım arasında pozitif bir korelasyon saptandı. (p <0.05)

Sonuç: Yeni ve basit bir inflamasyon göstergesi olan ortalama trombosit hacmi
/ lenfosit oranı, koroner yavaş akım saptanan hastalarda daha yüksek bulundu.
Bu yüksek oran, koroner yavaş akım saptanan hastaları takipte klinisyenler için
önemli bir gösterge niteliği taşıyor olabilir.
Peculiarities of electromagnetic field oscillations of a charged particle rotating about a conductive ball
Authors: Mkrtchyan A.H. , Grigoryan L.Sh. , Khachatryan H.F. , Grigoryan M.L. , Sargsyan A.V.
Published: October 2018

Abstract. The paper investigates some characteristic features of the electromagnetic field of a relativistic charged particle that uniformly rotates about a conductive ball in its equatorial plane. It is assumed that the braking of the particle due to radiation is compensated by an external influence (e.g. the electric force) that compels the particle to turn uniformly in a circle. The magnetic permittivity of the ball is assumed to be one. The work is based on the corresponding exact analytic solutions of Maxwell’s equations. The generalized Drude-Lorentz-Sommerfeld formula for the dielectric function of the conductive ball is used in numerical calculations. It is shown that localized oscillations of a high-amplitude electromagnetic field can be generated at a given harmonic inside the ball at a certain (resonant) particle rotation frequency at a small distance from the surface of the ball. Herewith, at large distances from the trajectory of the particle, these localized oscillations are accompanied by intense radiation at the same harmonic, which is many times more intense than the analogous radiation in the case when the ball is absent. The possibilities of using this phenomenon to develop sources of quasi-monochromatic electromagnetic radiation in the range from giga- to terra hertz frequencies are discussed.
Student Attendance At Campus Sporting Events: How Can We Get Them There?
Authors: Castleberry Stephen B. , Espel Stephen
Published: October 2018

College student attendance at campus sporting events has been declining for a number of years with administrators looking for ways to reverse that trend.  There are multiple reasons for the declining attendance and a multitude of possible solutions have been proposed. This case examines the situation for the football program at one mid-sized university, providing data from a representative cross section of the student population. Readers are tasked with making recommendations based on the data and to describe methods of evaluating the success of any changes.
Night air conditioning of buildings by external air ventilation
Authors: Bravo-Hidalgo Debrayan
Published: October 2018

Buildings contain the environment in which almost all human activities take place, and therefore, nowadays, they represent a great sink of energy. Establishing thermal comfort conditions within these buildings is responsible for a large portion of their energy demand. This paper aims at providing a theoretical framework of the performance and the trends in research and implementation of night air conditioning by outside air ventilation. The bibliographic search was conducted in the academic directory Scopus, and the information extracted was processed in the VOSviewer software, through which text mining, map of terms and networks of investigative action were carried out. The literature showed that direct ventilation has a more significant cooling potential in regions characterized by a high difference between day and night air temperatures. The effectiveness of night cooling and the reliable prediction of thermal behavior are strongly related to the model adopted for the convection algorithm. A reliable prediction of heat transfer by convection requires an approach based on computational simulations of fluid dynamics, which are much more demanding in terms of computational power, compared to simulations of the variation of energy flows as a function of time. Most studies showed that the position of the thermal mass is not significant, while the amount of ventilation air is of great importance. In particular, the energy demand for cooling a building decreases sharply if the air flow rates increase.
Decisión judicial y participación ciudadana: los impactos de las audiencias públicas en las sentencias de la Corte Suprema argentina = Judicial decision making and public participation: the impact of public hearings in the decisions of the Supreme Court of Argentina
Authors: Benedetti Miguel Á. , Sáenz M. Jimena
Published: October 2018

Resumen: En las últimas décadas, las audiencias públicas realizadas en foros judiciales han sido señaladas como una de las innovaciones más importantes en las prácticas de los tribunales de altas instancias latinoamericanos. Estas audiencias prometen una renovación en los modos de pensar las tensas relaciones entre el poder judicial –especialmente su facultad de revisión de constitucionalidad– y la democracia a partir de la apertura del espacio judicial al diálogo y la participación de la ciudadanía, de las modalidades de intervención judicial para la protección de derechos, y de los aspectos simbólicos y políticos de herramientas que usualmente se reconocen como meramente procesales. A la luz de esos objetivos de renovación dialógica, pragmática y simbólica de las prácticas judiciales que abrieron las audiencias, este trabajo testea su grado de concreción a través de un estudio de los efectos de las audiencias públicas realizadas por la Corte Suprema de Justicia argentina en sus decisiones desde finales de 2004 hasta el 2017 inclusive.Palabras clave: Corte Suprema, audiencias públicas, participación ciudadana, deliberación, decisión judicialAbstract: The implementation of public hearings in judicial fora in the last decades has been considered from different perspectives one of the most important innovations in the practices of Latin American Courts. They promise a renovation in the ways of accommodating the tension between the role of Courts (especially their function of judicial review) and democracy; in the models of judicial decision making, and they point to the symbolic dimension of procedural rules and practices. This paper presents a study that tests the accomplishment of these promises tracing the impact of public hearings in the decisions of the Supreme Court of Argentina in the period between 2004 and 2017.Keywords: Supreme Court, public hearings, public participation, deliberation, judicial decision making.
Protesta democrática = Democratic protest
Authors: García Ruiz Alicia
Published: October 2018

Resumen: En este trabajo se realiza un recorrido por la idea de protesta a lo largo de tres dimensiones. En primer lugar, se trata la relación de la protesta con la ley (incluyendo aquí el problema de la desobediencia civil y de la tensión entre legalidad y legitimidad). En segundo lugar, se aborda el papel político de la contestación social en el funcionamiento de las sociedades democráticas. En tercer lugar, se analiza el problema del populismo punitivo y las políticas represivas en el contexto de sociedades fuertemente marcadas por la desigualdad, la pobreza y la conflictividad social.Palabras clave: Protesta, desobediencia, democracia, legalidad, legitimidad.Abstract: In this article, the idea of protest is approached along three dimensions. First, it deals with the relationship between protest and law (with particular attention to the problem of civil disobedience and the tension between legality and legitimacy). Secondly, the political role of social contestation in the functioning of democratic societies is addressed. Finally, the problem of punitive populism and repressive policies is analyzed in the context of societies strongly marked by inequality, poverty and social conflict.Keywords: Protest, disobedience, democracy, legality, legitimacy.
Cultura constitucional = Constitutional culture
Authors: Melero De la Torre Mariano C.
Published: October 2018

Resumen: La “cultura constitucional” hace referencia a la Constitución “realizada” o “actualizada” en las prácticas, hábitos y actitudes de los poderes públicos y la ciudadanía en general de una comunidad política. Este artículo trata de explorar las formas de interdependencia de la norma constitucional y la realidad cultural, añadiendo al final algunas reflexiones sobre el papel de los jueces en un Estado constitucional. Palabras clave: Cultura constitucional, mutación constitucional, cultura de la autoridad, cultura de la justificación, cultura democrática de la justificación.Abstract: The “constitutional culture” means the “realization” or “actualization” of the Constitution in the practices, habits and attitudes of the public powers and the general citizenship of a political community. This paper tries to explore the forms of interdependence between the constitutional norm and the cultural reality, adding at the end some reflections about the role of judges in a constitutional State.Keywords: Constitutional culture, living tree, culture of authority, culture of justification, democratic culture of justification.
Buenas Prácticas (Códigos de) = Best Practices (Codes of)
Authors: Ausín Txetxu
Published: October 2018

Resumen: Los códigos de buenas prácticas recogen de manera ordenada y sistemática aquellas experiencias que resultan aconsejables en un determinado ámbito porque han arrojado resultados positivos y han demostrado su éxito y utilidad, de modo que merece la pena que se repitan y sean compartidas. Especialmente relevantes en el ámbito de las organizaciones del sector público, se mueven entre la tradición y la innovación y entre sus funciones están el reconocimiento de la misión de la actividad, la generación de conocimiento, el aprendizaje e innovación sobre la misma, la protección frente a presiones externas, la prevención de malas prácticas, la confianza y la ejemplaridad. Hay discusión sobre su valoración pero, como mínimo, deberían responder a un serie de requisitos: participación, flexibilidad, adhesión, accesibilidad, monitorización y difusión.Palabras clave: Buena práctica/mala práctica, modelo, ética, innovación, cultura organizacional.Abstract: The codes of best practices collect in an orderly and systematic way those experiences that are advisable in a certain field because they have yielded positive results and have shown their success and usefulness so that they are worth repeating and sharing. Especially relevant in the realm of public sector organizations, they move between tradition and innovation and among their functions are the recognition of the mission of the activity, the generation of knowledge, learning and innovation about it, protection against external pressures, the prevention of bad practices, trust, and exemplariness. There is discussion about their assessment but, at a minimum, they should respond to a series of requirements: participation, flexibility, adhesion, accessibility, monitoring and dissemination.Keywords: Best practice/bad practice, model, ethic, innovation, organizational culture.
Lenguaje claro (derecho a comprender el Derecho) = Plain Language (the right to understand the Law)
Authors: Arenas Arias Germán Jair
Published: October 2018

Resumen: Desde hace algunos años se está promoviendo el uso de un lenguaje claro en los textos legales y formales para fortalecer el acceso a la información pública, la confianza en las instituciones, los mecanismos de control social y la certidumbre jurídica. Diferentes asociaciones internacionales y redes nacionales de lenguaje claro se han comprometido con lo que denominan el derecho a comprender la ley y la justicia. Este artículo reseña la construcción conceptual del lenguaje claro, sus orígenes en la teoría de la legislación moderna, su incidencia en las democracias contemporáneas y en las comunicaciones del Estado con sus ciudadanos.  Palabras clave: Lenguaje jurídico, claridad, confianza, comunicación, transparencia, información pública. Abstract: For some years, the use of plain language has been promoted in legal and formal documents for strengthen access to public information, trust in institutions, social control mechanisms and legal security. Different international associations and national plain language networks have committed themselves to what they call the right to understand the law and justice. This article reviews the conceptual construction of plain language, its origins in the theory of modern legislation, its impact in contemporary democracies and in the communication between State and citizens.Keywords: Legal language, clarity, trust, communication, transparency, public information.
La “Política natural” de D’Holbach: reforma, utilidad y desigualdad = D’Holbach’s “Natural Politics”: reform, utility and inequality
Authors: Peña Echeverría Francisco Javier
Published: October 2018

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La autonomía de la economía y la primacía de la política = The Autonomy of the Economy and the Primacy of Politics
Authors: San Emeterio Martín Nieves
Published: October 2018

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Límites del neoliberalismo, límites de la democracia = Limits of neoliberalism, limits of democracy
Authors: Sánchez León Pablo
Published: October 2018

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Lorenzo Peña y Gonzalo (2017), Visión lógica del derecho. Una defensa del racionalismo jurídico: ¿A qué podemos aspirar razonablemente? La libertad migratoria según Lorenzo Peña
Authors: Melero de la Torre Mariano C.
Published: October 2018

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Lorenzo Peña y Gonzalo (2017), Visión lógica del derecho. Una defensa del racionalismo jurídico: El jusnaturalismo lógico y biológico de Lorenzo Peña
Authors: García Figueroa Alfonso
Published: October 2018

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Lorenzo Peña y Gonzalo (2017), Visión lógica del derecho. Una defensa del racionalismo jurídico : La crítica de Lorenzo Peña a la ética y su supuesta objetividad
Authors: Vásconez Carrasco Marcelo
Published: October 2018

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El bien común, esencia y función del Derecho
Authors: Peña y Gonzalo Lorenzo
Published: October 2018

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Reseña de: Víctor Lapuente (coord.) (2018), La calidad de las instituciones en España
Authors: Cruz-Rubio César N.
Published: October 2018

Este artículo reseña: Víctor Lapuente (coord.),   La calidad de las instituciones en España.  Círculo de Empresarios Madrid, 2018,  280 pp.
Reseña de: Ricardo Cueva Fernández (2017), Estudios sobre la libertad en América: de la federación republicana al desafío igualitario de la democracia
Authors: Alonso Mauricio Carlos
Published: October 2018

Este artículo reseña: Ricardo Cueva Fernández Estudios sobre la libertad en América: de la federación republicana al desafío igualitario de la democracia , Alcalá de Henares,  Servicio de Publicaciones UAH, 2017, 129 pp.
Rediscovering Claritas as the Illuminator of the Great Order of Truth, Good, and Beauty Within Caring Science
Authors: Nåden Dagfinn , Bergbom Ingegerd , Lindström Unni Å. , Eriksson Katie
Published: October 2018

The aim of this article is to illuminate and explore the universal meaning of claritas. In caring science and caritative caring, the unity of truth, good, and beauty constitutes the fundamentals, but the unity does not become ontologically evident before claritas enters the arena. Claritas guides human performance, and it is the clear light which brings about caritas. Thus, claritas might facilitate carrying out what is good in a responsible, courageous, and Âretian way, meaning that all caring is grounded in ethos and wisdom. “To the same extent as caritas, claritas should be considered a core concept in caring science.”
Elaboração de um ranking da transparência e compreensão das práticas de gestão de municípios integrantes do COREDE Missões-RS
Authors: Santos Micheli Dos , Visentini Monize Sâmara
Published: October 2018

Esta pesquisa se propõe a investigar a transparência como prática de gestão pública em dez municípios do noroeste do Rio Grande do Sul, tendo como objetivo principal compreender como os gestores públicos têm atuado na disponibilização de informações em portais eletrônicos de prefeituras municipais, a partir da Lei de Acesso à Informação (LAI, Lei 12.527/2011). Trata-se de um estudo exploratório com metodologia qualitativa. A partir de um ranking de transparência estabelecido com base no Índice de Transparência da Gestão Pública Municipal (ITGP-M), foram realizadas entrevistas semiestruturada buscando a compreensão das práticas que qualificam as posições no ranking, na percepção dos gestores. Os resultados apontam certa resistência quanto à disponibilização de informações, predominando ainda a cultura patrimonialista. Os dados de disponibilização obrigatória são fornecidos sem ressalvas, enquanto os demais passam por “filtro” da administração, o que tem impedido a efetividade da LAI.
A necessidade de identificação como barreira ao acesso à informação: evidências e práticas no Brasil e no mundo.
Authors: Rodrigues Karina Furtado , Michener Gregory
Published: October 2018

Este artigo explora a identificação obrigatória (apresentação de informações pessoais) como uma barreira ao direito à informação pública. A identificação obrigatória cria o potencial para a discriminação ou represália do requerente, gerando fortes desincentivos para se pedir informações aos governos. Além de uma revisão de literatura sobre as experiências de discriminação na administração do governo, este artigo cria uma tipologia de obrigações de identificação com base na análise das leis de acesso à informação de 111 países. Aplicou-se esta tipologia aos 18 países latino-americanos que possuem estas leis, estendendo a análise aos decretos e portais online para se fazer pedidos. Os resultados mostram uma desordem em relação às obrigações de identificação na América Latina e a necessidade de uma maior padronização internacional. Discute-se possíveis soluções à luz das obrigações de identificação do Brasil e da proibição constitucional do anonimato, uma barreira para proteger os requerentes de possíveis discriminações ou represálias.
Discourses on Languages and Identities in Readers' Comments in Ukrainian Online News Media: An Ethnolinguistic Identity Theory Perspective
Authors: Horbyk Roman
Published: October 2018

This study is a pioneering attempt to apply social and ethnolinguistic identity theories developed by social psychologists Henri Tajfel, Howard Giles, and Patricia Johnson, and Judith Butler’s critical feminist theory of hate speech, to Ukrainian realities. The material comprises nearly 3,000 readers’ comments concerning language issues posted to Ukraine’s leading news website Ukrains'ka pravda (Ukrainian Truth) in 2010-12, and is analyzed through a systematic discourse-historical approach within a critical discourse analysis. Notorious for intolerance, filthy language, and trolling on a mass scale, the comments reflected the language situation in Ukraine from 2010 to 2012, demonstrating linguistic optimism, linguistic alarmism, denial of bilingualism, and historicist, legalist, and laissez-fair discourses. The readers’ comments deny or affirm the authenticity of either the Russian or the Ukrainian language, propose the exclusion or inclusion of the Russophone population in Ukraine, or deny that there are identity differences. From the chosen theoretical perspective, this study testifies to an unequal power status of the language groups, to the cultural hegemony of Russophones and the challenge to this hegemony by Ukrainophones, to mutual othering, and to an abundance of hate speech. Arguably, the use of hate speech assisted in developing and cementing the identities of Ukrainians who connected strongly with either the Ukrainian or the Russian language.
Argumentation and Aggression: About Maps and Poems in the Russian-Ukrainian Conflict
Authors: Kuße Holger
Published: October 2018

Argumentation as a function of human communication, and aggression as a feature of communicative behaviour, seem to be contrary to each other. Argumentation should be understood as the regulation of dissent based on rational arguments, whereas aggression can be seen as the manifestation and intensification of dissent. But the boundaries between rationality and irrationality, as well as between the regulation and the manifestation of dissent are often vague. Therefore, not only hate speech but also seemingly rational argumentation can be motivated by aggression and can lead to aggression. In the present study, this intertwinedness of argumentation and aggression is shown in the current Russian-Ukrainian conflict, where we can find the use of aggressive theses, reasons, and aggressive arguments in different semiotic and textual expressions: not only in political statements, but also in poetry and in multimodal forms like political maps. Combining argumentation theory with a case study of aggressive argumentation in the Russian-Ukrainian conflict, the paper presents several forms of intertwinedness of argumentation and aggression. The research is mainly based on maps as a type of popular geopolitics, in which the aggressive thesis of the non-existence of Ukraine is provided. The study also considers the poeto-political war around Anastasiia Dmytruk’s poem “Nikogda my ne budem brat'iami” (“Never ever we will be brothers”). Responses to Dmytruk’s thesis provoke not only disagreement but also negative and positive-negative agreement, which means that the opponent agrees with the thesis but rejects the reasons of the argument, or s/he agrees with the thesis and the reasons but evaluates them in a contradictory way. Whereas the analysis of maps shows mainly the performing of aggressive theses, the analysis of the poeto-political war highlights how reasons are provided in an aggressive communication frame.
Effect of dietary supplementation with extracts of rosemary, olive leaves, pine bark and quercetin on selected performance indices of broiler chickens and microbiological status of their ileum
Authors: SIERŻANT KAMIL , ORDA JANUSZ , KORZENIOWSKA MAŁGORZATA , MALICKI ADAM
Published: October 2018

A total of 180 1-day-old male Hubbard Flex broiler chickens were used in a 32-day model experiment to determine the effects of dietary supplementation with quercetin (Q) and with polyphenolic extracts of rosemary (RO), olive leaves (OL) and pine bark (PB) on the performance of the birds and the microbiological status of their ileum. The chickens were randomly allocated into 9 groups: the control group (with 6 replicates, 6 birds per cage) and 8 treatment groups (with 3 replicates in each, 6 birds per cage), and fed ad libitum throughout the experimental period with a basal isoenergetic and isoprotein control diet or with the same basal diet containing two concentrations of RO, OL and PB extracts (2.50 and 5.00 g/kg), and Q (0.25 and 0.50 g/kg). The body weight gain (BWG) and the feed conversion ratio (FCR) were determined during the experiment. At day 32, two randomly selected birds from each cage were slaughtered, and 5-centimetre-long pieces of the ileum beginning from the Meckel's diverticulum were collected to analyze the number of microorganisms in the intestinal content. Chickens’ weight gain and FCR were not affected by the OL-, PB- and Q-enriched diets, but supplementation with RO significantly (P < 0.05) impaired FCR. BWG was significantly (P < 0.05) reduced when chickens were fed with mixtures containing 2.50 and 0.25 g/kg of the polyphenolic additives. The number of CFUs of intestinal microorganisms was not significantly affected (P > 0.05) by the diet modification. However, a large decrease (P > 0.05) was observed in the CFUs of coliform bacteria (up to 96%), E. coli (up to 93%), Lactobacillus spp. (up to 89%), molds and yeasts (up to 95%) and anaerobic Clostridium spp. (up to 52%) in the ileum content of chickens supplemented with the additives containing polyphenols.
Measurement of vibrations of composite wings using high-order finite element beam
Authors: Bennamia Ismail , Badereddine A. , Zebbiche T.
Published: October 2018

The purpose of this study is to show the influence of bending-torsion coupling on natural frequencies and mode shapes of aircraft wings by using two finite element beam formulations. The bending-torsion coupling parameters are the geometric parameter (distance between the mass axis and elastic axis of the cross-section of the beam) and the material coupling due to laminated composites. Cubic and high-order Hermite finite element interpolations are presented in this study, in order to show the influence of geometric and material coupling on natural frequencies and mode shapes. Starting by the governing partial differential equations of motion for the coupled bending-torsion beam with the bending and torsion equations, the Galerkin’s method is used with high-order finite element interpolation to obtain the high-order Hermitian shape functions. The mass and stiffness matrices are obtained using the kinetic energy and potential energy, respectively. The beam finite element has two nodes, the cubic element has three degrees of freedom at each end (transvers displacement, slope and torsion), where the high order element has five degrees of freedom at each end (transvers displacement, slope, curvature, gradient of curvature and torsion). The mass matrix contains geometric coupling terms and the stiffness matrix contains terms of material bending-torsion coupling. The obtained results using cubic and high-order finite element Euler-Bernoulli beam formulations are compared for a free vibration analysis of Goland metallic wing (geometric coupling) and validated with Dynamic Stiffness Method for composite wings.
Experimental and numerical investigation on the influence of the clocking position on hydraulic performance of a centrifugal pump with guide vane
Authors: Wei Jiang , Diyi Chen , Wang Yuchuan , Ting Li
Published: October 2018

The investigation of the clocking effect mainly concentrates on turbines and compressors, but seldom in centrifugal pumps. In this paper, using numerical simulation and experiment, the influence of the clocking effect on the hydraulic performance of centrifugal pump with guide vane is studied. Numerical simulations with SST k-w turbulence model were applied to obtain the inner flow field of the test pump. The numerical simulations coincide with the test result, which indicates the accurate of the utilized numerical approach. The results show the clocking positions have an important effect on hydraulic performance of the centrifugal pump with guide vane. The pump demonstrates the higher efficiency and head as the tongue locate between two guide vanes. The hydraulic performance of the volute is a major factor impacting the performance of the centrifugal pump with different clocking positions. However, the clocking position has almost no effect on the performances of the impeller and diffuser. When the guide vane is close to the volute tongue, flow field of volute is more non-uniform, and the energy loss in volute appears to be larger. The results and the method of this paper can provide theoretical reference for the design and installation of guide vane in centrifugal pump.
The effects of structural parameters on excitation force of airflow vibration piezoelectric generator
Authors: Zou Huajie , Song Jian , Wang Zeping , Chen Hejuan
Published: October 2018

In order to meet the requirements of airflow vibration piezoelectric generator, and solve the critical issue of stable excitation force, the key is to effectively control structure sensitive parameters. The range of structural parameters of airflow excitation device are optimized by simplified orthogonal test. The result shows that corresponding to different resonator lengths, it approximates a linear increasing trend between the amplitude of excitation force and airflow velocity, and the greater length owns the smaller slope, and vice versa. It is relatively complex for the space and ring gaps, too big or too small gap would make the amplitude smaller or even no waveform formed. The length of resonator is the main factor impacting on the frequency of excitation sound pressure, and the frequency decreases with the increase of the length, presenting an inverse relationship, and the space and ring gaps have less effect on the frequency. Therefore, for high airflow velocity, the stable excitation force of high amplitude and frequency can be obtained by short resonator. In addition, reasonable space and ring gaps are also important for ensuring bigger amplitude of excitation sound pressure. The resulting sensitive parameter values of sound excitation device can be used as references for engineering design.
Local Volterra multivariable chaotic time series multi-step prediction based on phase points clustering
Authors: Han Feng , Yang Shuying , Song Shibao
Published: October 2018

To solve the multivariable multi-step prediction problem in chaotic complex systems, this paper proposes a local Volterra model based on phase points clustering. Firstly, reconstruct the phase space of the data and calculate the similarity of the evolution trajectories. According to the similarity, the initial clustering center of the observation point is calculated and the clustering is carried out by means of K mean. We find the cluster class nearest to the prediction phase, compare the predicted phase point with the evolutionary trajectory similarity of all the observed points in the cluster, select the optimal neighboring phase point, and the optimal neighboring phase point is used for training and multi-step prediction of the multivariable local Volterra model. The proposed model method can greatly reduce the time of multi-step prediction and improve the efficiency of prediction. Finally, by experimenting with the data of Beijing PM2.5 acquired from UCI machine learning database, the experimental results show that this model method has better predictive performance.
Application of the energy finite element analysis to vibration of beams with stepped thickness and variable cross-section
Authors: Lin Zhili , Chen Xiliang , Zhang Bo
Published: October 2018

Energy finite element analysis (EFEA) has been developed to compute the energy distribution of vibrating structures. The method adopts the energy density as the basic variable of differential equation. The energy density can be used to analyze the behavior of vibrating beams. Firstly, an EFEA equation is obtained from the classical displacement equation. In the applications of uniform and non-uniform beams, the EFEA results are compared with the analytical and FEA results. Secondly, a junction formulation solving the discontinuity problem of energy density at the junction of two beams with stepped thickness is proposed. The EFEA equation combined with junction formulation is used to solve the energy transmission problem of the coupling beams with stepped thickness and variable cross-section. The smoothed results of coupling beams are achieved, and the differences of energy density at the junctions are analyzed. The feasibility of the EFEA approach is validated by using several design examples under the various frequencies and structural damping loss factors.
An analytical investigation on the dynamic stability of a rotor filled with liquid
Authors: Li Bobo , Wang Guangding , Yuan Huiqun
Published: October 2018

This paper deals with the dynamic stability of a rigid rotor arbitrarily filled with liquid. On the basis of the established coupled-field equations of the rotor system, the general whirling eigenequation, which is a quartic complex coefficients equation, is derived. In order to obtain the solutions of the general whirling eigenequation, a mathematical method is proposed. To illustrate the precision of calculating results, a comparison is carried out between the present analysis and the numerical results. The results show that two calculation results are in good agreement. Then the stability of the rotor system is analyzed. It is shown that the dynamic instability occurs at a particular bound of the spinning speed. Moreover, the effects of system parameters, such as fluid-fill ratio and mass ratio, on the unstable regions are discussed.
Literature review of tire-pavement interaction noise and reduction approaches
Authors: Li Tan
Published: October 2018

Tire-pavement interaction noise (TPIN) dominates for passenger vehicles with the speed of above 40 km/h and for trucks with the speed of 70 km/h. With the prevailing trend of electric vehicles, TPIN can become more NVH (Noise, Vibration, and Harshness) issue in the future. In this paper, the vehicle noise and tire noise were briefly reviewed in the background introduction. Then the motivation of and approaches to reducing tire noise was reviewed from open literature. It was found that the tire industry and the pavement industry have been working individually on designing and building quiet tire and quiet pavement for many decades. However, the interaction between tire and pavement was less investigated. The future research on reducing TPIN can be the combined consideration of both tire and pavement characteristics while maintaining other performances, such as traction, handling, rolling resistance, hydroplaning, and durability.
Gestión del riesgo y control, una mirada tridimensional
Authors: Hernândez Diego Fernando
Published: October 2018

Pese a la gran responsabilidad que tiene la administración de una pequeña y mediana empresa en Colombia, en cuanto a la gestión de sus procesos administrativos, se encuentra ahora, bajo la perspectiva de la globalización, una expansión de bienes y servicios que transitan libremente por la esfera global, trayendo consigo, y de forma inherente, riesgos de orden operativo, éticos, legales y de transparencia; en ese orden de ideas, la presente investigación surgió por la necesidad de implementar un modelo que ayude a la administración a identificar, bajo una perspectiva tridimensional, aspectos de control que auxilien a la organización en la gestión de los riesgos internacionales.
Feedback aos candidatos não aprovados nos processos seletivos das empresas
Authors: Massi Maria Lúcia Gili
Published: October 2018

O feedback aplicado aos participantes não aprovados nos processos seletivos é prática pouco comum nas organizações, o que os impede de conhecer seus pontos fracos para aprimorá-los e seus pontos fortes para potencializá-los. Ainda que o tema seja relevante do ponto de vista social e acadêmico, há pouca publicação tratando dos efeitos danosos que a falta do feedback provoca nas pessoas, motivo que deu causa a este estudo que, baseado em pesquisa bibliográfica, documental e de campo, se propôs a identificar os impactos que a falta de feedback provoca nos candidatos. Os resultados mostram os problemas enfrentados pelos profissionais que estão em busca de uma posição no mercado de trabalho, tais como: ansiedade, indignação, desrespeito, constrangimento. De modo oposto, o recebimento do feedback possibilitaria que os envolvidos alavancassem seus perfis profissionais.
Viés e incertezas que cercam os laudos de avaliação: análise da oferta pública de ações Magnesita refratários S.A.
Authors: Tonsic de Araujo Daniel , Odálio dos Santos José , Morais Juliano , Furuse Martins Renato
Published: October 2018

A emissão de laudo de avaliação torna-se obrigatória quando ocorre a Oferta Pública de Aquisição de Ações (OPA). Dotado de subjetividade estes laudos de avaliação são balizadores para atribuição de valor a uma entidade. Esta pesquisa teve o objetivo de analisar um laudo de avaliação emitido em 2007. Para alcançar tal objetivo, foi selecionada de forma aleatória a empresa Magnesita S.A., indústria que atua na produção de refratários destinados às indústrias siderúrgicas e de cimento. O resultado esperado da avaliação de uma empresa é atribuir, por meio de métodos específicos, valor a uma entidade. Este valor deve ser livre de viés e pré-julgamentos por parte dos analistas para que este valor reflita adequadamente a empresa em seus aspectos qualitativos e quantitativos. Contudo, é possível dizer que o mercado não é tão racional e bem informado como demonstram os estudos acerca da teoria da eficiência de mercado. Na verdade, é formado por indivíduos que buscam resultados de forma muito peculiar, baseados em realidades construídas em função de sua experiência de vida, da possibilidade de acesso a informações e de interesses pessoais.
Application of Bacteriocins in Meat and Meat Products: An Update
Authors: Pilevar Zahra , Hosseini Hedayat , Beikzadeh Samira , Khanniri Elham , Alizadeh Adel Mirza
Published: October 2018

:

Being an important source of human enteric diseases, microbiological safety is one of the
major risk concerns in the meat industry. In order to inhibit and inactivate microbial contamination
and extend the shelf life of meat products, different procedures have been practiced, including the
addition of bacteriocins as proteinaceous antagonistic preservatives. This article discusses the application
of bacteriocins which are capable of controlling the growth of pathogenic and spoilage microorganisms
in meat and meat products. We identify possible ways to improve the performance of bacteriocins
ensuring food safety and toxicity. We first provide a brief introduction to the classification
of bacteriocins and then discuss their antimicrobial properties and mechanism of action alone and in
combination with other hurdles in meat and meat products. Moreover, application methods of bacteriocins
in meat products are described and cross-compared, introducing emerging meat products containing
bacteriocins.

:

Despite the existence of many reports related to the application of bacteriocin-producing strains of
lactic acid bacteria in meat products, very few review articles have attempted at evaluating the application
of bacteriocins in the red meat while observing their antimicrobial mechanism of action as
well as evaluating their applications in meat products. The application of these proteins in meat
products has received considerable attention; however, there are still some drawbacks and limitations
for their application. Characterization, identification, toxicity evaluation and investigating application
level of bacteriocins produced by meat borne/non-meat borne bacteria appears to be necessary in order
to increase the efficiency of extending shelf life and improving the microbial stability of meat
products.
Novolac-based Polymer-silver Nanoparticles Hybrid: Synthesis, Characterization and Antibacterial Evaluation
Authors: Ghosh Samaresh , Acharyya Mridula , Mandal Santi M.
Published: October 2018

Background:

Hybrids, composed of silver nanoparticles (AgNPs) dispersed inside a polymer matrix thus combining properties of both the components offer antibacterial activity and several advantages. Nevertheless, the development of antibacterial hybrid material comprising both novolac type phenolic resin and AgNPs remains one of the untouched issues in human healthcare.

Objective:

We report herein the simple preparation of hybrid derived from functionalized novolac resin and AgNPs. The hybrid was tested for antibacterial activity towards Gram-positive and Gramnegative bacteria.

Method and Results:

Preparation and characterization of functionalized novolac resin and hybrid were achieved. Gram-positive bacteria (Staphylococcus aureus MTCC 3160, Staphylococcus epidermidis NCIM2493, Bacillus subtilis) and Gram-negative bacteria (Pseudomonas aeruginosa ATCC27853, Escherichia coli) were used to test the bactericidal efficiency of hybrid. The antibacterial effectiveness of hybrid was determined in terms of the minimum inhibitory concentration (MIC). In addition, treatment with hybrid caused cytoplasmic contents leakage evidencing membrane damage.

Conclusion:

The hybrid developed thus could provide opportunities to fabricate a wide range of antibacterial functional materials for different purposes in human health associated sectors.
Stratification of deep vein thrombosis and pulmonary embolism risk factors after trauma and orthopedic surgery
Authors: Golubev G. Sh. , Sasko S. S. , Bachurin S. S. , Berezovskiy D. P.
Published: October 2018

The aim of this work is to assess the methods of risk stratification of deep vein thrombosis (DVT) and pulmonary embolism (PE) after trauma and orthopedic surgery. Modern data devoted to risk factors of DVT and PE (including genetic) are uncertaint. We analyzed probability of DVT and PE on the base of literature data for trauma and orthopedic patients. Different models of risk stratification being compared. Single gene mutation is not sig-nificant for DVT risk prediction. Correlations between several gene mutations and polymorphism increase probability of proper risk estimation. Programmatic DVT and HAS risk estimation calculator developed and is accessible on web-site.