bluuebunny/crossref_metadata_2025 huggingface dataset:
Los objetos bibliográficos confirmados en la integración compleja de la descripción y acceso a recursos
Authors: RODRÍGUEZ GARCÍA ARIEL ALEJANDRO
Published: January 2018

EL PROPÓSITO DE ESTE TRABAJO ES ANALIZAR LOS OBJETOS BIBLIOGRÁFICOS QUE HAN SIDO CONFIRMADOS POR LOS NUEVOS LINEAMIENTOS PARA DESCRIBIR Y ACCEDER A LOS RECURSOS. PARTIENDO DE LAS PREMISAS DE LOS SISTEMAS COMPLEJOS, LA INTERDISCIPLINAR Y LA TEORÍA DE SISTEMAS, SE CONTRASTAN LAS INTERPRETACIONES QUE HA EMPLEADO LA CATALOGACIÓN PARA SIGNIFICAR LAS COSAS DEL MUNDO REAL Y VIRTUAL QUE CONVIVEN EN EL UNIVERSO BIBLIOGRÁFICO. NO ES LA INTENCIÓN DEL ESTUDIO DESCRIBIR CADA ENTIDAD QUE SE MENCIONA EN LAS REGLAS DE CATALOGACIÓN, NI LOS MODELOS CONCEPTUALES DE ENTIDAD-RELACIÓN NI LOS NUEVOS LINEAMIENTOS, SINO REFERIR AQUELLAS ENTIDADES QUE HAN PASADO DE UN EXTREMO A OTRO DEBIDO A UNA FALTA DE CONSISTENCIA EN LA PROPIA TERMINOLOGÍA DE LA DESCRIPCIÓN BIBLIOGRÁFICA. SE HACEN VARIAS PROPUESTAS ACERCA DE LA COMPOSICIÓN METAFÓRICA Y LA JUSTIFICACIÓN DE NUEVOS PARADIGMAS PARA LA CATALOGACIÓN.
Nuevos paradigmas periodísticos y documentales en los periódicos digitales: estudio de casos en España
Authors: Marcos Recio Juan Carlos , Sánchez Vigil Juan Miguel , Serrada Gutiérrez María
Published: January 2018

Se observa la evolución, desarrollo y expansión del periodismo y la documentación digital a partir de los orígenes de las redacciones digitales y la aparición y surgimiento de documentalistas digitales al servicio de esos medios. La llegada de Internet ha colocado a los medios (grandes, medianos y pequeños) en una posición difícil de entender para editores, redactores, documentalistas, gestores y también para los usuarios/ lectores que tienen una nueva percepción de la realidad informativa. En menos de una década este modelo se quebró. Ante esto, los documentalistas han modelado una forma nueva de enfrentarse a la información, de atender las peticiones de la redacción y de gestionar su propio trabajo. Se propone un seguimiento, un estudio y un desarrollo de los medios digitales y de su información basados en la óptica de la documentación y el estudio de casos en cuatro de los grandes periódicos nacionales.
Normalización de la terminología mexicana sobre el agua
Authors: Naumis-Peña Catalina , Vargas-Suárez Verónica
Published: January 2018

Se expone el resultado de una investigación llevada a cabo para conocer el estado de la normalización terminológica en tesauros especializados que incluyen el agua dentro de sus áreas contratando los términos usados en la literatura mexicana. La documentación que se genera sobre el tema del agua en México crece en forma exponencial en tanto que la problemática del agua exige soluciones integrales. Actualmente no existe un tesauro, ni terminologías relacionadas con el tema del agua en México, ni tampoco una propuesta terminológica concreta sobre el tema en español. Por eso el presente documento aborda el tema del agua, la terminología que se usa en el español de México y los problemas que encuentra la intermediación terminológica que se realiza a partir de la Bibliotecología para representar estos contenidos en los sistemas de información.
Representaciones bibliotecarias sobre la biblioteca pública, la lectura, el lector, la promoción y la animación a la lectura en Medellín, Colombia
Authors: Álvarez Zapata Didier , Giraldo Giraldo Yicel Nayrobis , Ocampo Molina Norfi Yamili , Guerra Sierra Luz Marina , Melgar Estrada Liliana , Gómez Vargas Maricela
Published: January 2018

El artículo aborda las representaciones bibliotecarias sobre la biblioteca pública, la lectura, el lector, la promoción y la animación a la lectura que tienen los directores y promotores de lectura de las bibliotecas públicas de la ciudad de Medellín.
Políticas de información: Políticas de Servicios Bibliotecarios y de Información
Authors: Sánchez Vanderkast Egbert J.
Published: January 2018

Al hablar de políticas de información, en particular en bibliotecas, lleva a considerar un conjunto de actividades bibliotecarias que influyen, o no, en la prestación de servicios bibliotecariosy de información en el más amplio sentido de la palabra.Esta definición simplemente deja de lado todas aquellas construcciones teóricas y metodológicas que...
Atendimento clínico veterinário em cães e gatos na comunidade Serra Nova do município de Bom Jesus-PI
Authors: Carvalho Sávio Matheus Reis de , Sousa Wliglesio Leite de , Rodrigues Alline Alves , Sá Mariane Vieira de , Sousa Sá Isael de , Batista Raffaella Maria de Oliveira , Rocha Douglas dos Santos , Santos Joisiane da Silva , Galeno Lygia Silva , Machado Júnior Antônio Augusto Nascimento
Published: January 2018

Since the dawn of mankind, humans have been closely associated with animals, over time, these animals have become members of the family, necessitating more specific health care. The Healthy Pet Extension Project aimed to bring clinical care in the area of Small Animal Clinic to the most needy communities in the municipality of Bom Jesus-PI. Visits were made to the communities to conduct consultations, to collect material for examinations and to provide guidelines on the promotion of animal health. In addition, banners and folders were made in public squares and free fairs and contained important information on the creation of dogs and cats. The population served by the students was satisfied with the attendance; in addition, the project was important for the students involved, because through it enabled an interaction of the theory learned in the course of the course with the practice exercised in the care. It is concluded that the extension project is of great importance for both the academic community and the population. With regard to students, it is possible to reconcile theory with practice, as well as obtaining experience mainly in the area of medical practice of dogs and cats, thus contributing to their professional future. As far as the population served hears guidelines and clarifications regarding responsible care, vaccination, food and general care with domestic animals.
ProjectQ: an open source software framework for quantum computing
Authors: Steiger Damian S. , Häner Thomas , Troyer Matthias
Published: January 2018

We introduce ProjectQ, an open source software effort for quantum computing. The first release features a compiler framework capable of targeting various types of hardware, a high-performance simulator with emulation capabilities, and compiler plug-ins for circuit drawing and resource estimation. We introduce our Python-embedded domain-specific language, present the features, and provide example implementations for quantum algorithms. The framework allows testing of quantum algorithms through simulation and enables running them on actual quantum hardware using a back-end connecting to the IBM Quantum Experience cloud service. Through extension mechanisms, users can provide back-ends to further quantum hardware, and scientists working on quantum compilation can provide plug-ins for additional compilation, optimization, gate synthesis, and layout strategies.
A queda do opressor em poesia: análise exegética de Isaías 47.1-11
Authors: Abdalla T. Neto Tiago
Published: January 2018

Este artigo tem como propósito realizar uma análise exegética de Isaías 47.1-11, revelando a crítica poética do profeta judeu à dominação e ao abuso de poder do império babilônico junto com o anúncio de sua queda derradeira. Em primeiro lugar, a análise literária examina a estrutura do texto e os aspectos retóricos do discurso do autor de Isaías 47. Em seguida, o contexto histórico esclarece o ambiente sociorreligioso do público ao qual o profeta se dirige, em que um grupo considerável de judeus sentia-se a atraído a seguir os deuses de seus dominadores, em vez de confiar em Yahweh, a divindade da nação. Por fim, a análise do conteúdo investiga a mensagem, de maneira detalhada, proclamada pelo profeta judeu, revelando tanto a crença na soberania universal de Yahweh quanto a faceta transitória do império caldeu autoconfiante.
Revendo conceitos: Uma resenha do livro "O mundo dos preconceitos" (Die Welt der Vorurteile, 2014) de Ágnes Heller
Authors: Hilbert Hegele Josias
Published: January 2018

O livro da filósofa húngara Ágnes Heller é um tratado filosófico a respeito do tema "Preconceito".
ASPECTOS DA EDUCAÇÃO A DISTÂNCIA EM SAÚDE NO BRASIL: UMA ANÁLISE DAS PUBLICAÇÕES (2007 A 2014)
Authors: Santos Monica Jandira dos , Jurberg Claudia
Published: January 2018

Mediados pelas tecnologias da informação e comunicação, modelos de ensino-aprendizagem em Educação a Distância (EaD), via internet, têm possibilitado a organização de eventos educacionais com foco em situações específicas, tanto em sistemas formais, como não-formais de ensino. Com o objetivo de conhecer os Ambientes Virtuais de Aprendizagem, os referenciais teóricos e os processos de avaliação que têm sido utilizados nos eventos on-line, em especial no campo da saúde, assim como, identificar se o tema Biossegurança, que tem caráter transversal, multi e interdisciplinar tem sido abordado, foi realizada uma pesquisa exploratória e descritiva na Biblioteca Virtual de Saúde.  Para tanto, houve o levantamento de publicações referente ao período entre 2007 e 2014.  Foram encontrados 74 trabalhos, entre artigos (64) e teses (10).  A plataforma de ensino mais utilizada foi o Moodle.  Observou-se que não houve uma preocupação premente em fundamentar o planejamento pedagógico dos eventos educacionais em referenciais teórico-metodológicos.  A vídeo, tele e/ou webconferência tem sido uma estratégia de ensino muito utilizada.  O uso de mídias audiovisuais com demonstrações tem contribuído para o aumento da motivação do estudante em querer aprender e reforçado a aprendizagem.  A flexibilidade de horário e local foram os itens melhor avaliados pelos alunos de cursos em EaD.  Apesar dos avanços no Ensino de Biossegurança, não foi encontrada nenhuma publicação contemplando esse tema, quando adicionado ao descritor “educação a distância”.  Este resultado ratifica a necessidade de desenvolvimento de instrumentos de ensino e aprendizagem nessa abordagem e metodologia, pela pertinência do tema e relevância da EaD na capacitação de profissionais de saúde.
TEORIAS DA APRENDIZAGEM: FUNDAMENTO DO USO DOS JOGOS NO ENSINO DE CIÊNCIAS
Authors: Azevedo Neta Shirley Lima de , Castro Denise Leal de
Published: January 2018

O objetivo deste trabalho foi compor uma revisão bibliográfica sobre autores da teoria da aprendizagem que reforçam a utilização de jogos no Ensino de Ciências, levando em consideração que a prática de jogos pode auxiliar o ensino-aprendizagem de conceitos específicos da área. Observou-se que os jogos podem ser ministrados como intervenção pedagógica nas escolas, ajudando a estreitar a relação entre os discentes e o professor-aluno, além de verificar que auxiliam/facilitam o processo de aprendizagem, já que utilizam signos e linguagens necessários à formação do pensamento e que estão intimamente ligados à cultura e à sociedade que fazem parte, sem poder se desvencilhar delas. O processo se dá de forma criativa, prazerosa, interessante e motivadora.
O QUE TEM A NOS DIZER OS TRABALHOS SOBRE O PIBID E O ENSINO DE CIÊNCIAS E BIOLOGIA PUBLICADOS NO ENPEC 2015
Authors: Silvério Franklin Deller , Oliveira André Luis
Published: January 2018

Por muitos anos, os alunos das licenciaturas tiveram como possibilidade de vivenciar à docência, somente nos estágios supervisionados. No ano de 2007 a coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Capes, em parceria com o Ministério da Educação e Cultura - MEC, iniciaram o Programa Institucional de Bolsa de Iniciação à Docência – Pibid. Este programa foi criado com o objetivo de incentivar a formação docente em nível superior para a Educação Básica e contribuir para a valorização do magistério. O programa é organizado com professores coordenadores de área, estes sendo das Instituições de Ensino Superior, professores supervisores, que atuam nas escolas da Educação Básica e alunos das licenciaturas. O presente trabalho teve como objetivo identificar os trabalhos produzidos no âmbito do PIBID, que foram publicados na Ata do Décimo Encontro Nacional de Pesquisa em Educação em Ciências - X ENPEC e analisá-los para observar o que tem sido discutido entre os pesquisadores. Foi realizada uma busca nos anais do evento com a palavra-chave “PIBID”, que possibilitou a seleção dos trabalhos por meio dos títulos, resumos e metodologias. Por fim, foi realizado uma análise qualitativa. Os resultados indicaram que os trabalhos selecionados demonstram um grande vínculo com os objetivos do programa, sendo a discussão voltada para a formação inicial e continuada de professores.
CATEGORISATION OF RURAL ACCOMMODATION FACILITIES AND ITS POPULARITY AMONG POLISH CITIZENS
Authors: Zawadka Jan
Published: January 2018

The categorization of rural accommodation facilities has been operating since 1997. Unfortunately, the popularity among farmers in rating their accommodation facilities is very low. The reason of this may be in fact that the average Polish citizen has no awareness of existence of such system. This article discusses the essence of the categorization system of rural accommodation facilities and presents the results of the research on the level of knowledge of Polish citizens about the subject. Through questionnaire research carried out on a sample of 830 respondents can be concluded, that awareness of the existence of the categorization system and knowledge about it is among the Poles very small
THE CARBON FOOTPRINT OF A MEAT PROCESSING COMPANY
Authors: Bieńkowski Jerzy , Dąbrowicz Radosław , Dworecka-Wąż Ewa , Holka Małgorzata , Jankowiak Janusz
Published: January 2018

Plans for mitigating greenhouse gas (GHG) emissions in the agri-food sector should not only include the production of agricultural raw materials but also the food processing industry. The aim of the research was to determine the carbon footprint of a meat processing enterprise and to analyze the intensity indicators of GHG emissions. The study was conducted in a medium-sized company, located in the Wielkopolska Province, for which pork is a basic feedstock for the production (over 81.0%). The results show that the largest GHG emissions were related to the consumption of electricity, natural gas and fuels in the transport of products. There were estimated values of several indicators of emission intensity. The main indicator of GHG emissions related to the unit of product was 519 g CO2 eq. per 1 kg. It is concluded that the analysis of the carbon footprint can be an important instrument for the management of GHG emissions at the company level and can also serve the purpose of assessing the effects of implementing plans for a low-carbon economy in the meat processing sector.
COMPETITIVE ADVANTAGES OF POLISH FOOD PRODUCERS ON THE EUROPEN UNION MARKET IN THE POST-ACCESSION PERIOD
Authors: Braja Mirosława , Sawicka Janina
Published: January 2018

Processes and phenomenons that appear within world economy result in the increase of competition on lots of markets, including the food markets. This competition is won by the entities, sectors and countries that possess the advantages which create their competitiveness. Different types of food producers’ competitive advantages may be identified. Mostly pointed out are price advantages and quality advantages. The aim of this paper is to identify the sources of competitive advantages of Polish food producers on the European Union market that appeared within the period 2004–2016. The analysis covered 26 groups of products which were selected according to their significance for Polish agri-food export. The long-term observation let the Authors identify the dominating strategies of competing which were implemented by Polish food producers on the European Union market. Analysis was conducted with the Aiginger’s price-quality approach and was based on the data available within Eurostat Comext database.
FACTORS OF FUNCTIONING AND CHANCES OF DEVELOPMENT OF FISH INDUSTRY IN POLAND
Authors: Firlej Krzysztof , Kubala Sebastian
Published: January 2018

The aim of the article is to present the factors of functioning, the chances of development and an assessment of attractiveness of the fish processing industry in Poland. There is a reference to competitive powers inside the industry, entrance barriers, substitution risks, a role of suppliers and purchasers as well as the arguments for an importance of aquaculture in functioning of the industry and an indication of the growing import level. The strong points and weak points of the industry are also determined with the use of Porter model, SWOT analysis and for statistical analysis Spearman rank correlation coefficient and tests of significance. The biggest chances of development in the industry have the big units that ensure a significant part of income for the industry and determine their economic situation. The small entrepreneurs are mainly oriented for a local sale because in their case the access barriers on a market are smaller and little experience is required. The analyses of academic literature and statistical data were used in the article.
THE UTILIZATION OF EU FUNDS IN THE YEARS 2007–2015 FOR THE PRESERVATION OF CULTURAL HERITAGE OF RURAL AREAS IN EASTERN POLAND
Authors: Gralak Arkadiusz , Powęska Halina
Published: January 2018

The article presents the problems of financing cultural heritage of rural areas from the European Union funds in the macroregion of Eastern Poland. It outlines the scale and structure of the use of the EU funds for projects relating to the protection and promotion of cultural heritage. It also describes the scale of regional differentiation in the field of the use of European Funds for the protection of cultural heritage in rural areas. The temporal range of the study included the years from 2007 to 2015. The analysis was conducted across the six types of projects distinguished according to their subject matter, that is to say the promotion of natural values, protection and valorization of natural heritage, other forms of support for the enhancement of tourism services, protection and preservation of cultural heritage, development of cultural infrastructure, other forms of support for the improvement of cultural services, as well as integrated projects for the revitalization of urban and rural areas. The analysis focused on four types of areas: rural areas, towns with county rights, voivodship towns and the area of the voivodship. The information used in this study was based on the data pertaining to the projects co-financed from the EU funds and stored in the National Information System (KSI SIMIK 07-13) as of 31 December 2016.
YOUTH VERSUS OLD AGE – CONSUMPTION DETERMINANTS
Authors: Piekut Marlena
Published: January 2018

The age of household members is an important determinant for expenditures. The aim of the present study is to determine expenditure structure and also the hierarchy of consumption determining factors in Polish both young and older households. The research material comes from unpublished Household Budget Survey of Central Statistical Office of Poland for 2012. Canonical correlation analysis was applied as a research method. The most important determinants of expenditures turned out disposable incomes per capita and household size. In spite of transformations taking place in the last years, financial aspect still plays deciding role in consumer spending, particularly in spending on services. The study on consumption determinants at different age groups leads to better understanding of consumer behavior circumstances and thereby ensuring a good quality of life for the people of different age.
LINEAR-DYNAMIC PROGRAMMING AS A BASIS FOR SETTING THE DIRECTIONS OF DEVELOPMENT FOR FIELD FARMS AGAINST CHANGES IN THE COMMON AGRICULTURAL POLICY IN MEDIUM-TERM PERSPECTIVE
Authors: Zieliński Marek , Ziętara Wojciech
Published: January 2018

The purpose of the article is an attempt to determine, in the 2019 perspective, the economic situation of farms specialising in cereals, oilseeds and protein crops, with the economic size of 4–25 (very small), 25–50 (medium-small), 50–100 (medium-large) and 100 thousand EUR and more (large), operating on lower soils with the soil classification index (SCI) of up to 0.7, with an emphasis on changes in the Common Agricultural Policy (CAP) 2014–2020 as compared with the CAP 2007–2013. This was made using a model-based method (linear-dynamic programming method). These models adopted the maximisation of agricultural farm income as a criterion for optimisation. It was determined that the growth in income of these farms will be limited in case unfavourable pricing conditions on the market of biotechnological products and production measures last until 2019. This will mean that, in 2019, very small cereal farms will have no funds to pay the cost of farmer and his family’s labour at the parity level and the cost of development, while medium-small cereal farms will have no funds for development. Only medium-large and large cereal farms will retain the possibility to pay the cost of farmer and his family’s labour at the parity level and the cost of further development.
The threats of the shadow economy for public finance in Poland
Authors: Andrzej Buszko
Published: January 2018

The article is devoted to the treats of the shadow economy for public finance. The close attention was paid to the taxation gap and factors fostering shadow economy. The Pearson coefficient index was used in order to identify the strength of the correlation among chosen variables influencing the taxation gap. Based upon the results it should be stated that factors fostering taxation gap ought to be reduced and more complex action towards reduction of the shadow economy is required to be taken
Rola promocji w kreowaniu wizerunku regionu – instrumenty, narzędzia, trendy. Przykład województwa świętokrzyskiego
Authors: Lemanowicz Marzena
Published: January 2018

W artykule zaprezentowano teoretyczne aspekty związane z marketingiem terytorialnym, koncentrując się w szczególności na instrumencie jakim jest promocja. Współcześnie pojęcie promocji jest bardzo szerokie i w ramach jej mamy możliwość wykorzystania różnych narzędzi, zarówno tych tradycyjnych jak i niestandardowych. Popularność tych ostatnich wynika w dużej mierze ze zmian w zachowaniach konsumentów spowodowanych chociażby rozwojem Internetu, a w tym portali społecznościowych, blogów itp. Pojęcie promocji, marki, wizerunku jest dzisiaj używane w odniesieniu nie tylko do towarów, firm, ale również miejsc, a więc regionów, miast, województw czy gmin. Celem niniejszego artykułu jest przedstawienie szerokiego spectrum działań promocyjnych jakie zostały zrealizowane w województwie świętokrzyskim, określenie rezultatów tych działań w aspekcie ilościowym a także wizerunkowym. Ponadto zbadano poziom rozpoznawalności kampanii promocyjnych i ich związek analizowanym regionem. Aby zrealizować powyższe cele przeprowadzono badanie przy użyciu internetowego kwestionariusza ankiety. Grupę badawczą stanowiło 238 respondentów pochodzących z całej Polski, którzy dobrowolnie wypełnili kwestionariusz. Wyniki badań potwierdzają potrzebę prowadzenia działań promocyjnych w regionach, gdyż działania te przyczyniają się do kreowania wizerunku regionu, zwiększenia liczby osób odwiedzających dany region, a pomimo dużego „szumu informacyjnego” działania te są zapamiętywane przez odbiorców.
Crowdfunding jako alternatywne źródło pozyskania kapitału – analiza przypadku
Authors: Milewska Anna , Regulska Olga
Published: January 2018

Celem artykułu było przedstawienie alternatywnego rozwiązania problemu pozyskania środków pieniężnych w początkowym etapie organizowania i prowadzenia jednoosobowej działalności gospodarczej. Dokonano tego poprzez symulację finansowania crowdfundingiem, wybranego przedsięwzięcia dotyczącego rynku motoryzacyjnego Aby uwypuklić specyfikę finansowania społecznościowego (zarówno jego mocne jak i słabe strony), zaprezentowano konwencjonalne źródło pozyskania kapitału, do którego zaliczono kredyt bankowy. W artykule zamieszczono także uproszczone porównanie wymagań w odniesieniu do obydwu możliwości pozyskania kapitału na działalność gospodarczą. Opracowanie to ma formę analizy przypadku i uzyskanych w ten sposób wyników nie należy uogólniać na inne projekty czy profile związane z prowadzeniem działalności gospodarczej.
Przetwórstwo spożywcze w Polsce na tle krajów Unii Europejskiej
Authors: Podlińska Olga
Published: January 2018

Celem artykułu jest ukazanie pozycji polskiego przetwórstwa spożywczego na tle przetwórstwa spożywczego w krajach Unii Europejskiej oraz przedstawienie przetwórstwa spożywczego w Polsce na tle całego przemysłu. Realizację podjętej tematyki rozpoczęto od studiów literaturowych pozycji krajowych jak i międzynarodowych. W części empirycznej wykorzystano dane publikowane przez Europejski Urząd Statystyczny EUROSTAT oraz Główny Urząd Statystyczny GUS. W celu zobrazowania pozycji przetwórstwa spożywczego posłużono się udziałem procentowym produkcji sprzedanej przemysłu spożywczego w ogólnej wartości produkcji sprzedanej przemysłu. Biorąc pod uwagę udział całkowitej wartość produkcji sprzedanej w krajach Unii Europejskiej w 2016 r. Polska znalazła się wśród liderów krajów członkowskich, zajmując szóstą pozycję. Z udziałem 4% uplasowała się za Niemcami, Włochami, Francją, Wielką Brytanią i Hiszpanią. Zestawienia w opracowaniu dotyczą lat 2015 i 2016.
ASSESSMENT OF THE CREDIT HISTORY OF ENTERPRISES
Authors: Natalia Wasilewska  , Nadiia Davydenko
Published: January 2018

This is the first of 5 articles describing a research conducted to assess the creditworthiness of enterprises and the impact of such an assessment on the level of lending rates during the crisis that has covered the banking sector in Ukraine. In the framework of this study, it was assumed that the creditworthiness of agrarian enterprises involves the following four factors which are subject to the assessment: the credit history of the enterprise, its financial status, business plan and the adequacy of the security (the subject of the mortgage). This article describes the results of the assessment of the credit history of the enterprise. The aim of the study is to identify the quantitative measure of the correlation between the assessment of the credit history of enterprises and the level of repayment of credit in a crisis of the banking sector, as well as the improvement of methodological approaches to such an assessment.
Wolny rynek a bezpieczeństwo żywności w epoce globalizacji
Authors: Kowalczyk Stanisław
Published: January 2018

Podjęto próbę identyfikacji potencjalnych zagrożeń bezpieczeństwa żywności wynikających z procesu globalizacji oraz bezpośrednio związanej z nią skrajnej liberalizacji stosunków gospodarczych na poziomie międzynarodowym oraz wskazanie niezbędnych działań zaradczych w zakresie ochrony statusu bezpieczeństwa żywności. Analizie poddano współczesny status bezpieczeństwa żywności oraz skalę występujących fałszerstw żywnościowych na świecie. Do działań zaradczych zaliczono ustanowienie globalnego prawa żywnościowego, podejmowanie inicjatyw kontrolnych żywności na szczeblu ponadkrajowym, promocję krótkich łańcuchów dostaw, wreszcie edukację konsumentów i wzmocnienie ruchów konsumenckich.
Gaseous-phase proton affinity of anilines: A quantum chemical evaluation and discussion in view of aqueous basicity
Authors: Pankratov Alexei , Uchaeva Inna , Doronin Sergei , Chernova Rimma
Published: January 2018

Using the PM3 method, enthalpies and free energies of the gaseous-phase
proton affinity (PA) have been computed for aniline and 62 of its
derivatives with different kinds of electron-donor and electron-acceptor
substitution in the aromatic ring and at the nitrogen atom. Linear
correlations of the type pKa vs. PA have been found. Deviations of the data
for ortho substituted anilines from the above relationships was discussed in
view of possible hydrophobic hydration of the molecular fragments ajacent to
the protonation centre. Linear dependecesPexper = bPtheor (wherePis standard
entropy, heat or Gibbs energy of formation, first ionization potential,
molecular dipole moment) were found.
Potentiometric application of boron- and phosphorus-doped glassy carbon electrodes
Authors: Abramovic Biljana , Guzsvány Valéria , Gaál Ferenc , Lausevic Zoran
Published: January 2018

A comparative study was carried out of the potentiometric application of
boronand phosphorus-doped and undoped glassy carbon samples prepared at the
same heat treatment temperature (HTT 1000 ?C). The electrochemical
activities of the obtained electrode materials were investigated on the
example of argentometric titrations. It was found that the electrochemical
behaviour of the doped glassy carbon samples are very similar to a Sigri
(undoped) glassy carbon sample (HTT 2400 ?C). The experiments showed that
the potentiometric response depends on the polarization mode, the nature of
the sample, the pretreatment of the electrode surface, and the nature of the
supporting electrolyte. The amounts of iodide, bromide, and of chloridewere
determined to be 1.27 mg, 0.80 mg and 0.54 mg, respectively, with a maximum
relative standard deviation of less than 1.1%. The obtained results are in
good agreement with the results of comparative potentiometric titrations
using a silver indicator electrode. The titrationmethod was applied to the
indirect determination of pyridoxine hydrochloride, i.e., vitamin B6.
On molecular graphs and digraphs of annulenes and their spectra
Authors: Gutman Ivan , Plath Peter
Published: January 2018

Amolecular graph, consisting of undirected edges, can be represented as a sum
of two digraphs, consisting of oppositely oriented directed edges. In the
case of annulenes, the eigenvalue spectrum of the molecular graph is equal
to the sum of the eigenvalue spectra of the respective two molecular
digraphs.
The improvement of the detection power of a U-shaped DC plasma
Authors: Tripkovic Mirjana , Holclajtner-Antunovic Ivanka , Marinkovic Momir , Markovic Dragan
Published: January 2018

Optimization of the operating parameters of U-shpaed DC arc plasma and
spectrometer parameters has been undertaken to explore the possibilities of
improving its detection power. It is demonstrated, with a U-shaped arc as an
example, that the limits of detection, in addition to well-defined
parameters as described by Boumans1,2 and Winge,3 depend on the signal
integration time. It is shown that with increasing integration time, the
limits of detection are decreased within some limits and that the precision
and concentration sensitivity are improved as well. A mathematical
expression for the dependence of the detection limit on the integration time
is presented. To increase the reliability of the measurement of the
mentioned parameters, the working conditions were optimized for the
following analytes: Ag, Al, Au, Cr, Fe, Mn, Ni, Pb, Pd, Pt, and V. The
obtained limits of detection are comparable or better than those obtained by
ICP for the elements studied. It was estimed that the possibility exists for
their further improvement up to 10 times.
Selective desulfonylation in D-xylofuranose 3,5-disulfonates
Authors: Hadzic Pavle , Vukojevic Nada
Published: January 2018

A method for the preparation of D-xylofuranose derivatives with a free
terminal (C5) alcohol function was developed, starting from
monocyclohexylidene-3,5-disulfonyl- or 5-O-sulfonyl-3-O-methyl ester. The
regioselective displacement of the C5 sulfonyl ester functionwith acetate
ion in dimethylsulfoxide afforded the corresponding
5-O-acetyl-1,2-O-cyclohexylidene-3-O-sulfonyl or 5-O-acetyl-3-O-methyl-
-D-xylofuranose. These esters could be readily hydrolysed into the desired
1,2,3-trisubstituted xylofuranose.
Densification and crystallization behaviour of colloidal cordierite-type gels
Authors: Petrovic Rada , Janackovic Djordje , Bozovic Branislava , Zec Slavica , Kostic-Gvozdenovic Ljiljana
Published: January 2018

Three cordierite-type gels were prepared from an aqueous solution of
Mg(NO3)2, a boehmite sol and silica sols of very small particle sizes. The
effect of varying the silica particle size on the crystallization and
densification behaviour was studied. Phase development was examined by
thermal analysis and X-ray diffraction, while the densification behaviour
was characterized by measuring the linear shrinkage of pellets. The
activation energy of densification by viscous flow was determined using the
Franckel model for non-isothermal conditions and a constant heating rate.
The results show that spinel crystallizes from the colloidal gels prior to
cristobalite, and their reaction gives -cordierite, which is specific for
three-phase gels. Decreasing the silica particles size lowers the
cristobalite crystallization temperature and the -cordierite formation
temperature. The activation energy of densification by viscous flow is lower
and the densification more efficient, the smaller the silica particles are.
Dyeing of hydrophobic fabrics with disperse dyes
Authors: Maradiya Hari , Patel Vithal
Published: January 2018

A series of disperse dyes has been synthesized by diazotisation of
2,6-dibromo-4-nitroaniline and coupled with various N-arylmaleimides. The
dyes were characterized by IR spectral studies, visible absorption
spectroscopy and elemental analysis. All the dyes were applied as disperse
dyes on nylon, cellulose triacetate and polyester fabrics. These dyeswere
found to give yellowish orange to deep brown shades with very good depth,
levelness and brightness on different fabrics. The percentage dye bath
exhaustion and fixation on fabrics were found to be very good. The light,
washing, rubbing, perspiration and sublimation fastness properties of the
dyed fabrics were found to be good to excellent.
The growth of sapphire single crystals
Authors: Golubovic Aleksandar , Nikolic Slobodanka , Djuric Stevan , Valcic Andreja
Published: January 2018

Sapphire (Al2O3) single crystals were grown by the Czochralski technique both
in air and argon atmospheres. The conditions for growing sapphire single
crystals were calculated by using a combination of Reynolds and Grash of
numbers. Acritical crystal diameter dc = 20 mm and the critical rate of
rotation c = 20 rpm were calculated from the hydrodynamics of the melt.
The value of the rate of crystal growth was experimentally found to be 3.5
mm/h. According to our previous experiments, it was confirmed that three
hours exposures to conc. H3PO4 at 593 K was suitable for chemical polishing.
Also, three hours exposure to conc.H3PO4 at 523Kwas found to be a suitable
etching solution. The lattice parameters a = 0.47573 nm and c = 1.29893 nm
were determined by X-ray powder diffraction. The obtained results are
discussed and compared with published data.
Effects of insecticides intended for Ceutorhynchus napi Gyll. control in oilseed rape on ground beetles
Authors: Sivcev Lazar , Sivcev Ivan , Graora Draga , Tomic Vladimir , Dudic Boris , Büchs Wolfgang , Gotlin-Culjak Tanja
Published: January 2018

The effects of insecticides that are commonly used for conventional and
integrated oilseed rape (OSR) management on ground beetles were studied.
Monitoring of harmful species showed that only insecticides intended against
Ceutorhynchus napi should be applied. There were no differences in beetle
numbers and phenology of settling of C. napi in the OSR fields that received
different management practices. The type of OSR management has a primary and
significant impact on ground beetles abundance. Early in the spring, ground
beetles settled more massively on the non-tilled OSR field with abundant weed
cover and mulch on soil surface. However, there were no significant
differences in species richness between the OSR fields managed differently. A
total of 22 species were recorded. Early in the spring, the granivorous
ground beetles Amara aenea (47.3%) and Harpalus distinguendus (32.5%) were
dominant. When insecticides were applied, immigration of ground beetles
began, so that their adverse effect was minimal. In both management systems
the number of ground beetles and their diversity increased after spraying. In
conclusion, no significant harmful effects of the insecticides on ground
beetles were detected in OSR fields managed in two different ways.
Protest against dictatorship and the construction of collective identity
Authors: Biresev Ana
Published: January 2018

Protest against Dictatorship that started on April 3, 2017 in towns and
cities across Serbia was too short-lived to establish organized production
and instruments of distribution of meaning. This however doesn?t imply that
certain processes were not set in motion and that collective identity wasn?t
?under construction?. The main aim of this paper is to reconstruct the
identification patterns at work in Protest against Dictatorship. The study is
based on data collected between 13th April and 4th May 2017 among
participants of the protest in three cities in Serbia - Belgrade, Nis and
Subotica (n=175). Two presuppositions - that collective identity is the field
of struggle, and that identity building processes in contemporary social
movements are influenced by a constitution and principles of the capitalist
mode of production of social life - provided a basis for our analysis. We opt
for an approach that conceives the collective identity as a product
(?content?) and process (?contestation?). To conceptualize and operationalize
collective identity we rely on the existing studies that outline four
elements of collective identity that can be measured: worldviews, shared
goals, relational aspects, and behaviors and norms. The contenstation is
captured considering the extent of agreement and disagreement among
protesters around each of these four elements.
Articulation of resistance in the discourse of the 1996/97 Serbian protests: Political struggle through culture and symbolic geography
Authors: Petrovic-Trifunovic Tamara
Published: January 2018

The present article analyzes the discursive articulation of resistance to the
regime of Slobodan Milosevic during the civil and student protests in Serbia
in the winter of 1996/97. By applying critical discourse analysis to the
opposition press of the time, we find that the rhetoric during the protests
centered around the notions of civilization and culture. In variations of
orientalism, balkanism and ?urbocentric exclusivism,? the ?Us? and ?Them?
identifications were constructed through mutually interlaced semantic pairs:
civilization - backwardness, culture - primitivism, Europe - Balkans/Orient,
urbanity - rurality and democracy - communism. By drawing on existing
research on the role of symbolic geography and cultural distinctions in the
creation of social cleavages in the post-Yugoslav societies, our analysis
presents how cultural traits and affiliations, ?urbanity? and individual
characteristics, such as intelligence, critical ability and sense of humor,
were used for the framing of protests, but also as means of political
struggle in the protests. A detailed reconstruction of discursive strategies
of reporting on the protests allows for a contemporary assessment of the
limits of protest politics articulated in this way, and its comparison with a
recent wave of mobilization of citizens of Serbia in 2016 and 2017.
Free convection around a slender paraboloid of non-Newtonian fluid in a porous medium
Authors: Kairi Rishi
Published: January 2018

This paper emphasizes the radiative heat transfer of non-Newtonian fluid on free convection around a slender paraboloid in a non-Darcy porous medium. The Ostwald-de Waele power-law representation is employed to express the non-Newto?nian behavior of fluid. Similarity analysis is applied to transform the set of non-dimensional PDE into set of ODE and then the resulting system of equations are solved by 4th order Runge-Kutta scheme with Shooting technique. The control of pertinent parameters on velocity, temperature and non-dimensional heat transfer rates are analyzed through graphical representation and explored in detail. It is evident that as the radius of the slender body increases the heat transfer coefficient decreases but the role of radiation on heat transfer rate getting reduced for all feasible values of the power-law index parameter.
Natural-convection heat transfer enhancement of aluminum heat sink using nanocoating by electron beam method
Authors: Pongiannan Senthil , Ramalingam Velraj , Nagendran Latha
Published: January 2018

The high power density and compactness of the next generation electronic devices necessitate efficient and effective cooling methods for heat dissipation in order to maintain the temperature at an acceptable safety level. In the present work, aluminum nanocoating was employed in a heat sink to study the heat transfer performance under natural-convection conditions. The nanocoating was achieved using an electron beam method while the characteristics of nanocoated surfaces were analysed using SEM, an energy dispersive X-ray spectroscopy, surface roughness profilometry equipment and by X-ray diffraction techniques. The heat dissipation from heat sink with and without nanocoating under natural-convection has been experimentally studied at different controllable surrounding temperatures. A uniform increase in the surface roughness by the nanocoating was seen in all cases. The conclusion from several experimental results was that the effect of nanocoating in augmenting the heat transfer is more pronounced only when there is a sufficient temperature driving potential.
Dynamic model of a self-excited induction generator with fundamental stray load and iron losses
Authors: Basic Mateo , Vukadinovic Dinko , Grgic Ivan
Published: January 2018

This paper considers a dynamic model of a self-excited induction generator that takes into account the fundamental stray load and iron losses. The model is de?scribed with the same number of differential equations as the conventional induc?tion machine model. Determination of the stray load and iron losses resistances does not involve any tests other than those imposed by the international standards nor does it require any details about induction machine materials or geometry. The dynamic analysis has been carried out for the case of a wind turbine-driven self-excited induction generator. The steady-state analysis, on the other hand, has been carried out for the case of a load-independent prime mover. The considered advanced model, aside from being compared with the conventional model, has been experimentally validated for two different-efficiency induction machines, both rated 1.5 kW.
Occupant behavior and thermal comfort field analysis in typical educational research institution: A case study
Authors: Pivac Nikolina , Nizetic Sandro , Zanki Vlasta
Published: January 2018

An experimental field study has been conducted for typical educational research building facility (office building). The research data was gathered by the systematic monitoring of the offices and adaptive occupant behavior during the typical working day in the spring period. Different sensors and data loggers for temperature, relative humidity, CO2 concentration, had been mounted in order to collect data for analysis of thermal comfort conditions. Moreover, occupant surveys and interviews in form of questionnaire were also brought to examine the psychological and social impacts of the occupants? behavior regarding energy consumption. The inductive scientific method is used for data processing, i. e. descriptive and inferential statistical analysis of the results was made. Based on the analysis of the conducted study, it was found that thermal environment of the observed building is within the standards (i. e. specific parameters are within the range) and that the occupants are generally satisfied with thermal conditions in their offices. However, they do not pay much attention to conserving energy which is an important finding as it is directly related to the energy consumption. Thus, more attention should be directed to the education of the users and in general, to enable energy savings in the future.
Performance assessment of shell and tube heat exchanger based subcritical and supercritical organic Rankine cycles
Authors: Erdogan Anil , Colpan Ozgur
Published: January 2018

In this study, thermal models for subcritical and supercritical geothermal powered organic Rankine cycles are developed to compare the performance of these cycle configurations. Both of these models consist of a detailed model for the shell and tube heat exchanger integrating the geothermal and organic Rankine cycles sides and basic thermodynamic models for the rest of the components of the cycle. In the modeling of the heat exchanger, this component was divided into sever?al zones and the outlet conditions of each zone were found applying logarithmic mean temperature difference method. Different Nusselt correlations according to the relevant phase (single, two-phase, and supercritical) were also included in this model. Using the system-level model, the effect of the source temperature on the performances of the heat exchanger and the organic Rankine cycle was assessed. These performance parameters are heat transfer surface area and pressure drop of tube side fluid for the heat exchanger, and electrical and exergetic efficiencies of the integrated organic Rankine cycles system. It was found that 44.12% more net power is generated when the supercritical organic Rankine cycle is used compared to subcritical organic Rankine cycle.
Optimum solutions of space fractional order diffusion equation
Authors: Ali Sajjad , Shah Kamal , Li Yongjin , Arif Muhammad
Published: January 2018

The present paper is concerned with the implementation of optimal homotopy asymptotic method to handle the approximate analytical solutions of fractional order partial differential equations. Fractional differential equations have great importance regarding distinct fields of science and engineering. Approximate solutions of space fractional order diffusion model and its various special cases are handled using the innovative proposed method. The space fractional derivatives are described in the Caputo sense. The results obtained by the proposed method are compared with various methods. The proposed method demonstrates excellent accuracy and strength over various methods.
Plasma Connective Tissue Growth Factor (CTGF/CCN2) Levels Predict Myocardial Infarction in the Veterans Affairs Diabetes Trial (VADT) Cohort
Authors: Hunt Kelly J. , Jaffa Miran A. , Garrett Sara M. , Luttrell Deirdre K. , Lipson Kenneth E. , Lopes-Virella Maria F. , Luttrell Louis M. , Jaffa Ayad A. ,   VADT Investigators, Lopes-Virella Maria F. , Hunt Kelly J. , Baker Nathaniel L. , Virella Gabriel , Moritz Thomas
Published: January 2018

OBJECTIVE

Connective tissue growth factor (CTGF), also known as CCN2, is a potent chemotactic and extracellular matrix-inducing matricellular protein that has been implicated in progression of inflammatory and fibroproliferative disorders. An emerging role of CTGF/CCN2 is that of a prosclerotic factor implicated in the development of cardiac disease. Our objective was to determine the role of CTGF/CCN2 as a predictor of cardiovascular events in type 2 diabetes in the Veterans Affairs Diabetes Trial (VADT) cohort.

RESEARCH DESIGN AND METHODS

Levels of CTGF/CCN2 were measured in 952 VADT patients a median of 1.9 years after entry into the study. Participants were followed for an average of 3.3 years for vascular outcomes. CTGF/CCN2 categories were defined as below the detectable limit (referent, 54.5%), lower half of detectable values (22.8%), and upper half of detectable values (22.7%). Hazard ratios (HRs) for cardiovascular end points in relation to CTGF/CCN2 categories were calculated by Cox proportional hazards models.

RESULTS

During follow-up, 4.8% had a myocardial infarction (MI), 6.9% had an MI or cardiovascular death, and 6.9% died. After adjustments by conventional risk factors, individuals in the highest category of CTGF/CCN2 were at higher risk of MI (HR 2.43 [95% CI 1.15, 5.14]), MI or cardiovascular death (HR 2.71 [95% CI 1.44, 5.08]), and all-cause mortality (HR 2.70 [95% CI 1.43, 5.08]) relative to individuals with CTGF below the detectable limit.

CONCLUSIONS

Our study indicates that high levels of CTGF/CCN2 predict future MI and cardiovascular death in patients with type 2 diabetes.