bluuebunny/crossref_metadata_2025 huggingface dataset:
Reconversão produtiva no contexto da COVID-19: uma análise dos impactos em campo de pesquisa de pós-graduação
Authors: Rodrigues Pinho Katia Liane , Teixeira Machado Maria Lucia
Published: October 2020

A presente Nota Técnica buscou identificar como a Tecnologia Social (TS) - Núcleo de Oficinas e Trabalho, de Campinas/SP- atual campo de pesquisa de Doutorado no Programa de Pós-Graduação em Ciência, Tecnologia e Sociedade, da Universidade Federal de São Carlos, criou estratégias de adaptação e reconversão produtiva visando enfrentar a crise social, econômica e sanitária gerada pela pandemia da COVID-19, oferecer respostas à necessidade de equipamentos de proteção individual e constituir um fundo visando a garantia de suporte para participantes. A análise caracterizou o conceito de reconversão produtiva, sua aplicabilidade no contexto nacional e seu processo de implementação em uma TS que atua com populações em situação de vulnerabilidade e isolamento social. A metodologia aplicada foi o levantamento de dados em campo sobre o processo de reorganização da equipe, as estratégias de comunicação institucional e as vendas realizadas. O arranjo institucional realizado demonstrou ser efetivo.
Reaplicação de tecnologia social: análise de casos do banco de tecnologias sociais da Fundação Banco do Brasil
Authors: Fabri Marília Gabriela Souza , Freitas Carlos Cesar Garcia , Poletto Rodrigo De Souza
Published: October 2020

O fenômeno da Tecnologia Social (TS) conta com aproximadamente 860 projetos registrados junto ao Banco de Tecnologias Sociais da Fundação Banco do Brasil aplicados nas mais diversas áreas sociais. Diante do crescimento do movimento da TS, o presente artigo analisou a questão da reaplicação em projetos de Tecnologias Sociais. Para tanto, foi realizada uma pesquisa descritiva qualitativa, com o emprego da estratégia de estudo de multicaso, de dois projetos de Tecnologia Social retirados do banco de dados da Fundação Banco do Brasil. Ainda foram empregados a entrevista semiestruturada e o levantamento documental para coleta dos dados. Como resultado verificou-se que a reaplicação é um desafio relacionado à adaptação do projeto para atender ao fator humano. Foi também possível definir a reaplicação como uma nova aplicação da Tecnologia Social que visa construir relações de confiança entre os envolvidos que permita, por meio da tecnologia, criar soluções conjuntas no intuito de promover a transformação social.
Rede de colaboração tecnológica na área de tratamento para doença renal crônica
Authors: Menezes Edmara Thays Neres , Santos José Wendel dos , Serafini Mairim Russo , Silva Gabriel Francisco da
Published: October 2020

Doença renal crônica (DRC) é a condição na qual os rins perdem a capacidade de efetuar a manutenção da homeostase do corpo humano, implicando no comprometimento de todos os outros órgãos. A DRC tem sido considerada um problema de saúde pública, uma vez que o número de casos aumenta exponencialmente em todo o mundo. Nesta perspectiva, este artigo teve como objetivo construir o cenário brasileiro das redes de colaboração tecnológica na área de tratamento para portadores DRC. Para tanto, uma pesquisa exploratória foi realizada nas bases de dados do Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Institutos Nacionais de Ciência e Tecnologia (INCTs) e Instituto Nacional de Propriedade Industrial (INPI). As buscas permitiram a identificação de 27 patentes para a construção das redes de colaboração tecnológica. Os resultados demonstraram índices baixos de interação entre os pesquisadores no cenário da DRC, bem como de interação entre instituições.
Zoneamento ambiental das áreas de preservação permanente na bacia hidrográfica do açude Santa Cruz do Apodi (RN)
Authors: Silva Wagner Bandeira da , Bezerra Joel Medeiros , Silva Paulo Cesar Moura da , Rêgo Alana Ticiane Alves do
Published: October 2020

No presente trabalho, conduzido na bacia hidrográfica do Açude Santa Cruz do Apodi-RN (BHASCA), objetivou-se realizar um estudo ambiental das Áreas de Preservação Permanente (APP’s), tendo como base o Novo Código Florestal, Lei nº 12.651/2012. Com o auxílio de geotecnologias foram elaborados mapas temáticos identificando as APP’s de forma automática, nas quais deveriam estar legalmente protegidas, em seguida realizou-se a análise quantitativa dos dados obtidos. Os resultados da análise e o mapeamento das APP’s demonstram que abrangem uma totalidade de 34.631 ha de área na BHASCA, distribuídas ao longo da faixa marginal dos rios (63,92%), no entorno de açudes (27,07%), ao redor de nascentes (2,93%), em topos de morros (0,89%) e, em encostas com declividade superior a 45º (5,19%). O trabalhou revelou resultados satisfatórios que podem servir de base para futuros estudos voltados ao planejamento ambiental e territorial, de forma a promover uma melhor qualidade de vida da população e garantir um desenvolvimento sustentável.
Internet e transferência de tecnologia: a Embrapa na opinião dos extensionistas rurais
Authors: Estevão Pricila , Sousa Diego Neves de
Published: October 2020

Na sociedade contemporânea, as TIC possuem papel central, na medida em que a informação e o conhecimento são as matérias-primas primordiais ao desenvolvimento tecnológico e social. A Internet e especialmente a Web são as principais responsáveis por esta revolução silenciosa. O objetivo deste estudo é analisar como a Web e o site da Embrapa Gado de Leite têm sido utilizados na rotina dos profissionais de extensão rural. Esta pesquisa é descritiva e utilizou-se de questionários estruturados e aplicados por meio de entrevista. Com relação à Embrapa Gado de Leite, os dados demostram que há necessidade de se estreitar o relacionamento com os agentes de Ater, e que a distância física ainda é uma barreira importante neste sentido. Os extensionistas acreditam que a melhoria da interação destes dois atores pode trazer benefícios como o desenvolvimento de pesquisas mais compatíveis com as reais necessidades dos diferentes níveis de produtores de leite, especialmente os pecuaristas familiares.
Negócios sociais e inovação: panorama das teses e dissertações no cenário nacional
Authors: Bedin Jéssica , Vianna William Barbosa
Published: October 2020

Os negócios sociais surgem para atender as demandas emergentes da sociedade contemporânea, se diferenciam ao buscar resolver problemas sociais da sociedade e garantirem sua sustentabilidade financeira. Nesse contexto, esta pesquisa tem como objetivo, mapear as teses e dissertações sobre negócios sociais e inovação no Brasil. Trata-se de uma pesquisa exploratória e descritiva, com levantamento bibliográfico por meio do instrumento de intervenção ProKnow-C. Como resultados identificou-se que o tema é pouco explorado no contexto brasileiro, pois foram recuperados apenas 23 dissertações e teses, e as variáveis com maior destaque foram: a administração, como área científica, foi a que mais se apropriou desse fenômeno social; as instituições privadas e os programas de mestrado tiveram maior destaque; além disso, houve um aumento das pesquisas no ano de 2017. Conclui-se, a partir desse portfólio bibliográfico, que a Ciência da Informação ainda não se apropriou dessa temática. No entanto, pode contribuir com os negócios sociais por meio da gestão da informação e do conhecimento ao investigar questões ligadas a informação para fins de aprendizagem, estratégicos e/ou decisórios.
Des inventions partagées aux innovations concurrentielles : réseaux et stratégies d’automatisation des entreprises
Authors: Vigezzi Michel , Uzunidis Dimitri
Published: October 2020

L'automatisation a souvent généré des débats entre les approches techniques et les réflexions globales s'intéressant aux liens pouvant exister entre les machines, le travail et l'emploi. Elle n'est donc pas une invention unique car elle s'est développée de manières différentes durant deux périodes particulières : celle de la conception rigide des activités et des productions s'appuyant sur des reproductions des actions, gestes et attitudes des salariés créant des inventions de machines, des réseaux d'inventeurs et de nouvelles conceptions des emplois et du travail et celle de la flexibilité des techniques et du travail s'appuyant sur des statuts sociaux différents des salariés au sein des entreprises flexibles avec des innovations reposant sur des ensembles de machines, des réseaux et d'organisations différentes du travail et des emplois. Ces conceptions s’appuient sur des concepts nouveaux, les "inventions partagées" et les "innovations concurrentielles" qui sont fortement marqués par les "dynamiques sociales" de la période étudiée. L’objectif principal de cet article est donc d’analyser ces évolutions de l'automatisation à partir des concepts d'inventions partagées, et d'innovations concurrentielles. S'appuyant sur une approche schumpétérienne n'ignorant pas les transformations d'inventions en innovations, cet article repose sur des nouvelles conceptualisations des inventions : les "inventions partagées". JEL Codes  : O31, J81, D85
Technologies et collaborations inter-industrielles : une analyse par les brevets
Authors: Lebert Didier , Meunier François-Xavier
Published: October 2020

L’article cherche à cartographier les collaborations technologiques interindustrielles à l’échelle mondiale. Il envisage ces collaborations en matière de recherche et développement (R&D) à partir de données sur les co-dépôts de brevets entre grands groupes. Nous mettons alors en évidence deux phénomènes généraux sur la période 2010-2015 grâce à l'usage de techniques structurales : Les relations de coopérations inventives se produisent principalement entre partenaires possédant des compétences technologiques complémentaires. Les relations se produisent entre partenaires proches. Ils semblent en effet baigner dans des environnements institutionnels identiques. JEL Codes  : L10, 032
Nanotechnologies et intelligence économique : enjeux de la valorisation de l’information et de la création de connaissances
Authors: Monino Jean-Louis
Published: October 2020

Les nanotechnologies un secteur en plein expansion. Développées à partir du milieu du XXème siècle, elles connaissent un formidable essor depuis une vingtaine d’années. Cependant, il est nécessaire d’accompagner le développement des nanotechnologies par la mise en place d’une approche plus pratique permettant un suivi et une maitrise des flux informationnels, et faisant état d’une échelle de la participation qui va de la mise à disposition de la donnée à la prise de décision. Le processus de l’intelligence économique : la collecte, le traitement, l’analyse et l’interprétation de la donnée, représente une pratique qui ne se limite pas à définir des idées, mais surtout à les concrétiser pour assurer une meilleure production de connaissances qui génèrent des innovations. JEL Codes  : C80, O30, O31, O32, O33
León Sánchez-Quintanar (1801-1877), médico, historiador y bibliófilo
Authors: Micó Navarro Juan Antonio
Published: October 2020

León Sánchez-Quintanar ocupó la cátedra de Patología Quirúrgica dé Valencia durante más de treinta años. Sus obras historicomédicas manuscritas: Biblioteca Médica Hispanolusitana y Biblioteca Quirúrgica Hispanolusitana, que han permanecido inéditas hasta nuestros días, han demostrado, tras su estudio, que constituyen una aportación de auténtica altura científica para la historiografía médica española. En 1893 sus hijos legaron a la Facultad de Medicina de Valencia las obras médicas de su biblioteca, que constituyen uno de los fondos más valiosos que se conservan en la Biblioteca y Museo Historicomédicos. El presente trabajo pretende recuperar su figura humana y científica, prácticamente desconocida hasta la fecha.
Medicina clínica y medicina de laboratorio en la Universidad de Valencia
Authors: Navarro Jorge
Published: October 2020

Durante la segunda mitad del siglo XIX la Cátedra de Clínica Médica de la Facultad de Medicina de Valencia fue incorporando los supuestos propios de la denominada «medicina de laboratorio», mentalidad apoyada en los recientes hallazgos de las ciencias fisicoquímicas. Dicha labor se incorporó a la tradición hipocrática y anatomoclínica cimentada por Félix Miquel, Joaquín Casañ y Juan Bautista Peset, siendo obra de Julio Magraner y José Crous desde las ideas fisiopatológicas y de Francisco Moliner desde las etiopatogénicas.
Ciencia y Sociedad en Cuba
Authors: Puig-Samper Miguel Angel , Alvarez Raquel
Published: October 2020

No disponible.
Indices de morbilidad e incidencia de enfermedades entre los esclavos en La Habana, 1580-1699
Authors: De la Fuente García Alejandro
Published: October 2020

El autor presenta un estudio sobre las principales enfermedades que aquejaban a los esclavos de La Habana en un intento por cubrir algunos aspectos interesantes y poco conocidos para la historia social de la colonia. Señalando las dificultades en la recogida de datos que pudieran dar información general sobre las enfermedades y al precario conocimiento de los «especialistas» sobre ciertas dolencias de la época, se recurre a las escrituras de compraventa de los esclavos donde figuraban las posibles afecciones. Tras analizar una abundante muestra (4.446 casos) durante el período 1580-1699, avanza una clasificación de las enfermedades más comunes a cada grupo: esclavos bozales, ladinos y azucareros y su análisis.
El Museo Anatómico de La Habana. (La enseñanza de la anatomía, cirugía y obstetricia: 1823- 1842)
Authors: García González Armando C. , Rangel Rivero Armando
Published: October 2020

Se trata de demostrar en este trabajo el proceso de institucionalización, en la universidad de La Habana, de la enseñanza de la anatomía, cirugía y obstetricia. La abundante documentación —sentimos el problema de la carencia de bibliografía actual— demuestra las grandes dificultades, económicas, políticas, ideológicas, que fueron surgiendo a lo largo de los años en que se luchó por la implantación de este tipo de enseñanzas, que tenían además el problema de poseer un gran contenido práctico y la necesidad de materiales específicos.
La vacunación homeopática contra la fiebre amarilla en La Habana, 1855
Authors: Pruna Pedro M.
Published: October 2020

El artículo trata la aplicación en La Habana de 1855 de un método de vacunación homeopática contra la fiebre amarilla ideado por un curioso personaje, Guillermo Lambert de Humboldt, cuyo método fue finalmente rechazado a pesar del apoyo decidido del gobernador de la isla que estaba muy interesado en limitar los efectos de la enfermedad en el cuerpo militar. Los hechos expuestos están recogidos en una obra general sobre la fiebre amarilla publicada por Nicolás Manzini en 1858 y muestran además la precaria situación sanitaria en la Cuba de aquel momento.
Estudios de plantas medicinales publicados por la Academia de Ciencias Médicas, Físicas y Naturales de La Habana de 1899 a 1958
Authors: Valero González Mercedes
Published: October 2020

El artículo presenta uno de los focos de interés que la Academia potenció durante la 1.ª mitad de este siglo, como continuación de la actividad desarrollada durante el siglo XIX, en torno al estudio y discusión de los trabajos que médicos, químicos y farmacéuticos realizaron sobre plantas medicinales de la Isla Se enumeran y comentan los trabajos de estos investigadores los cuales incorporaron nuevas técnicas (análisis químicos, orgánicos, exámenes histológicos...) y se destacan dos etapas en este período: 1.ª la que va hasta 1939 donde se continuaba la misma trayectoria que en el siglo precedente y la 2.ª en la que se incorpora la experimentación clínica a través de ensayos fisiológicos con animales y personas. Se pone de manifiesto en el artículo el respaldo que la Academia cubana presta a la divulgación de conocimientos sobre incorporación de nuevos medicamentos de origen vegetal a la terapéutica cubana y en algunos casos alertar sobre los posibles peligros del uso empírico popular de algunas plantas. De esta manera la Academia pretende sentar las bases científicas de esta actividad farmacológica y sustituir, en lo posible, la medicación química sintética lo cual se traduce en una actividad muy positiva y rentable para la salud pública cubana.
Notas sobre la Farmacia cubana (1492-1950)
Authors: Rangel Rivero Armando
Published: October 2020

El artículo desarrolla la historia de la farmacia en Cuba durante los cuatro siglos de la colonia y la primera mitad del siglo XX. En ella se destaca la incesante fundación de boticas desde 1598 y el incremento paulatino del comercio de medicamentos, la creación de instituciones farmacéuticas como el Real Tribunal del Protomedicato de Cuba (1695), la Real Junta Superior Gubernativa de Farmacia (1833), etc.; y ya en nuestro siglo la marcada influencia de la farmacia norteamericana y los subsiguientes planes de estudios en la Universidad habanera y actividades organizadas en relación con esta ciencia.
Un caso de desarrollo tecnológico en Cuba: el ferrocarril
Authors: Moyana Bazzani Eduardo L.
Published: October 2020

Durante gran parte del siglo XIX, Cuba vivió un proceso de crecimiento económico en el que la introducción y desarrollo de los ferrocarriles actuó como elemento determinante. El artículo analiza, fundamentalmente, los objetivos de la empresa, las condiciones financieras y técnicas de la instalación de la red ferroviaria y sus principales características, para determinar, por último, el alcance de sus repercusiones en la economía isleña.
Bibliografía Histórica sobre la Ciencia y la Técnica En España. 1990
Authors: Salavert Fabiani Vicente L. , Soler Sáiz Amparo , López Terrada María Luz , Pardo Tomá José
Published: October 2020

No disponible.
The FinTech Wave in the Financial Sector for European Union Countries
Authors: Radu Alina-Nicoleta , Copaciu (Paraschiv) Anca Mihaela
Published: October 2020

In this chapter, the authors provide some answers to the following questions: (1) To what extent can FinTech enter the market? (2) Are the markets accommodative enough for new innovative financial projects? (3) What are the main drivers of FinTech phenomenon? (4) Will FinTech shape the financial landscape going forward? By constructing four indices that can influence and drive FinTech market entry, such as (1) demand factors, (2) supply factors, (3) business environment, and (4) investment climate and by applying a z-score methodology, the results point out which economy is better prepared for a challenging wave of innovative changes in the financial sector relatively to the other economies included in the study. The authors focus on the EU countries over a period of 12 years (2007–2018). The FinTech market indices are computed by taking into account a wide variety of variables such as the level of financial inclusion, the available technology and infrastructure, the ease of starting new business, and the risk factors related to investment climate for all EU economies.
Accelerating Financial Innovation Through RegTech
Authors: Narang Shilpa
Published: October 2020

The buzz word ‘RegTech' is on the rise. A financial service regulation has inflated at an astounding rate since the financial crisis and, therefore, has the price tag of regulatory compliance. Many start-ups have begun to apply digital technological knowledge including APIs, AI, RPAs, and many more to these immediate, numerous, and burdensome tasks to meet the terms and regulations, hence the emergence of RegTech. This study examines the implications for financial institutions and regulation particularly when technology poses a confront to the global banking and regulatory system. It attempts to examine the characteristics and applications of RegTech in the world of regulatory compliance. It also illustrates a model to define the transformation of present workload to proposed workload of regulatory compliance with an application of RegTech.
Finding Solutions to Cybersecurity Challenges in the Digital Economy
Authors: Mohamed Hazik , Ali Hassnian
Published: October 2020

New technological innovation has incorporated frontier technologies in transforming the way we access and use existing products and services. The economy is becoming increasingly disrupted by revolutionary enterprises using technologies such as cloud computing, extensive use of artificial intelligence and data analytics, integration of interoperable internet of things (IoT) devices and the blockchained decentralization, including advanced materials. At the same time, regulatory and legal systems need to be strengthened in order for the ecosystem be protected from cyber risks and threats to allow for the market actors to flourish. In order to enjoy the benefits brought on by digital technologies, there are regulatory issues that come with technological adoption along with financial stability implications and consumer protection, with suggestions that regulators themselves adopt advanced technologies (RegTech) to embark on the new era of market supervision and monitoring to enhance cybersecurity.
The Role of Social Media Influencers on the Consumer Decision-Making Process
Authors: Antunes Ana Cristina
Published: October 2020

The digital era has introduced many changes in the consumer marketplace. Social media and especially social networking sites redefined how consumers relate to and behave towards brands, as well as the brand-consumer relationship. Within this context and the heightened resistance to brand communication through traditional media, marketeers are turning to other strategies to connect with their customers and influence their consumer journey. One of these strategies is influencer marketing. In the last years, brands have used social media influencers as endorsers of their products and services, and as brand ambassadors. Digital influencers connect consumers and brands, strengthening their bond and allowing the brand to reach their target in a more natural way to influence the consumer buying process. In this chapter we will provide a narrative review on the role of digital influencers on the consumer decision processes.
Motivations for Social Media Use and Consumption in Zambian Online Platforms
Authors: Gondwe Gregory , Muchangwe Roberta , Mwaya Japhet Edward
Published: October 2020

Although considerable literature has grown around the motivations for social media use and consumption across Africa, there is still a dearth of research on trends of consumption across different cultures and particular demographic environments. Studies that have attempted to explore this field tend to focus on how social media and the internet as a whole have remedied individuals in different ways. Particularly, how social media usage has enhanced participatory governance economically improved people's lives. This chapter offers a rather nuanced synthesis and perception of social media usage and consumption in Zambia that underscores the motivating factors. Two major interpretations are identified: social media consumption that focuses only on the quantity of proliferated online content and social media usage that interrogates the various ways people in Zambia use social media to suit their tastes and needs. The two approaches underscore the debate in this chapter and highlight how most studies have downplayed the distinction between the two.
Institutionalism, Social Media, and Democracy in Africa
Authors: Massamba Guy-Maurille
Published: October 2020

This study focuses on the process of institutional change with regard to the capabilities of African political systems to embrace the conditions that instill and support democracy in the context characterized by pervasive social media consumption. The author wonders in what way institutions and individual behaviors can integrate social media in order to consolidate democracy. In other words, is social media-supported democracy sustainable in Africa? The study analyzes the patterns of social media consumption in its functionality for democratic change in Africa. It examines patterns of institutional change on the basis of the impact of social media consumption in African politics. It highlights two theories of institutional change—structured institutional change and evolutionary institutional change—based on their relevance to the impact of social media consumption in African political settings.
Fog Computing as Solution for IoT-Based Agricultural Applications
Authors: Sarhan Amany
Published: October 2020

Fog computing is a developing computing approach to extend and assist cloud computing. Fog computing platforms have several characteristics help providing the services for the users in a reduced time manner and thus improve the QoS of the IoT devices such as being close to edge-users, being open platform, and its support for mobility. Thus, it is becoming a necessary approach for user-centric IoT-based applications that involve real-time operations, for example, agricultural applications, internet of vehicles, road monitoring, and smart grid. In this chapter, the present characterizations of fog computing, its architectures and a comprehensive method of how it is used to handle IoT-based agricultural applications are discussed. The chapter also presents some of these possible applications highlighting how they could benefit from the fog layer in providing better services.
Smart Agriculture Services Using Deep Learning, Big Data, and IoT (Internet of Things)
Authors: Sharma Ajay
Published: October 2020

The internet of things is believed to have long-lasting effects in both technology and modern society. In a modern information society, IoT can be seen as a global infrastructure that enables more advanced services by connecting physical and virtual devices and things to currently existing and even upcoming information and communication technologies. IoT takes advantage of identification, data capture, processing, and communication capabilities of modern technology to allow regular machines to provide new data sources to applications, which in turn can offer more advanced services. In terms of ICT technologies, IoT adds any thing communication to any time and any place. An increase in technology also leads to the development of smart agriculture. This chapter deals with the different electronic sensors used for the smart agriculture like soil moisture sensor, node MCU, water flow sensor, relay, water pump, solar system. The next section deals with big data in smart agriculture.
Fatigue Strength and Wear Behavior of NCD and MLD Diamond Coatings Characterized by Different Level of Residual Stresses after Annealing
Authors: Skordaris G. , Kotsanis Tilemachos , Boumpakis Apostolos , Stergioudi Fani
Published: October 2020

Nano-composite (NCD) and multi-layered (MLD) diamond coatings deposited on cemented carbide tools are often applied in machining of non-ferrous materials. A critical issue for their wear behavior, especially in cutting processes in which interrupted repetitive loads are applied such as milling, is the fatigue strength. The latter parameter is significantly affected by the level of residual stresses in their diamond film structure. For investigating such an issue, untreated as well as annealed for 8h vacuum NCD and MLD coatings of the same thicknesses were produced. Inclined impact tests supported by appropriate FEA models were conducted for calculating the level of the residual stresses and for determining the critical impact force for the fatigue damage after 106 impacts. Moreover, the wear behavior of diamond coated inserts was investigating in milling aluminum foam. According to the attained results, the reduction of the residual stresses in the diamond film structure contributes to a significant increase of the fatigue strength and coated tool life for both examined cases. Moreover, due to the enhanced tribological properties of NCD films, an improved wear behavior is registered compared to the MLD ones, when both coatings possess the same level of residual stresses.
Mortars Based on a Ternary Binder from Lime, Metakaolin and Calcium Hemihydrate
Authors: Pavlík Vladimír , Struhárová Alena
Published: October 2020

Normal-weight mortars with quartz sand filler and lightweight mortars with expanded perlite filler were prepared from a lime-metakaolin-gypsum binder. Mortar test samples were cured in a humid atmosphere and also in the laboratory ambient conditions. Development of hardening processes was studied by X-ray diffraction, thermal analysis and SEM-EDS observation. Compressive strength, drying shrinkage, bulk density and thermal conductivity of the mortars were determined. The presence of gypsum binder in the mixtures enabled formation of ettringite that caused expansion and reduced drying shrinkage of mortars with 20% content of gypsum binder.
Solidification Methods of Stabilizing Dangerous Wastes Used as Fillers for Secondary Protection of Building Structures
Authors: Žlebek Tomáš , Hodul Jakub , Mészárosová Lenka , Matušková Veronika , Drochytka Rostislav
Published: October 2020

The paper describes one of the first parts of design of secondary protection using dangerous wastes, building structures (concrete or steel) – preparation of filler component. Dangerous wastes present an important ecological problem connected with their storage and disposal. Their stabilization and solidification (S/S) creates solid mass, which can be further used as a secondary raw material. This solidified mass can be used for example as a filler component for polymer-based surface protection materials. Newly developed material is supposed to be applied as secondary protection of building constructions. The aim of the research is maximal possible use of dangerous waste while preserving utility characteristics of new material. The paper describes various ways of stabilization and solidification (S/S) of dangerous wastes.
Effect of Fibre Additives in Concrete on Change of Thermophysical Properties
Authors: Pavlendová Gabriela , Šín Peter
Published: October 2020

In recent years, we witnessed a rise in synthetic materials, mainly fibres, used for producing building materials. Fibres are, among other things, used to improve concrete poor energy absorption. Natural fibres reinforcement is found as the solution for low-cost building material mainly in developing countries. As processes in cement-based materials are moisture dependent, in this paper, we compare moisture dependence of thermophysical properties of cement-based materials with synthetic and some natural fibres. Thermal properties for samples with different types and amounts of fibres were measured by temperature response of each test specimen to heat flow impulses. This was done for increasing and decreasing relative humidity reached by artificial wetting in climatic chamber. The best results were achieved for the sample with 10% horse manure. Further on we would like to continue in testing and comparing mechanical properties of the samples as well.
Stability Analysis of St Barbara Church in Otovice
Authors: Božulić Ivana , Kuklík Pavel
Published: October 2020

Broumov Region and its group of churches represent a perfect example of symbiosis between Baroque architecture and countryside landscape. This peculiar heritage site requires specialized analysis to preserve its uniqueness. St. Barbara Church in Otovice, the one investigated in this thesis, was built by Christoph and Kilian Dientzenhofer. Nowadays, concerns about its stability and degradation process led to the necessity to investigate more deeply its current condition. Therefore, the main objective of the article consists in the FEM modeling and the evaluation of the bearing capacity of enclosure walls, with particular attention on the influence of the soil deterioration. In conclusion, technical advices are recommended.
NDT Monitoring of Alkali-Activated Material Carbonation
Authors: Plšková Iveta , Matysík Michal , Topolář Libor , Hrubý Petr
Published: October 2020

Production of Portland cement is relatively environmentally demanding (high CO2 emissions, extraction of raw materials for its production). Alkali-activated materials are an alternative to conventional Portland cement in the production of concrete. For alkali-activated binder concretes, their ability to withstand corrosive environments and their ability to protect steel reinforcement must be assessed. It is also necessary to know the suitability of non-destructive methods for monitoring the degradation process of these concretes. The paper deals with the carbonation monitoring of concrete with alkali-activated binder (slag) by the impact-echo method. Slag activated by sodium hydroxide (NaOH) was used as a binder. The specimens were tested by the non-destructive method (Impact-echo, ultrasound velocity). We focused on the shift of the dominant frequency obtained by the Impact-echo method.
Design and Comparison of the Different Material Compositions of the External Masonry Construction of the Building
Authors: Hellová Katarína E. , Struhárová Alena , Lajošová Tatiana , Kostelecká Michaela
Published: October 2020

In Slovakia, since August 2016, a change in the thermal standard STN 73 0540-2 [6] has been in force, taking into account the objective of the European Directive, which since 2021 counts on the construction of buildings with almost zero energy consumption. One of the objectives of these changes is to reduce energy consumption in buildings min. by 20% till 2020. In this article it is compared the selected structures of the support exterior walls with regard to the criterion of the required thermo-technical characteristics of the building structure - coefficient of heat transfer of the structure U for the ultra-energy building according to STN 73 0540 part 2 from 2016 [3, 6]. Finally, the most cost-effective structure that meets the required thermal and technical parameters was the masonry structure with an additional by insulating the ETICS (with meaning External Thermal Insulation Composite System).
IL-1α Is Essential for Oviduct Pathology during Genital Chlamydial Infection in Mice
Authors: Gyorke Clare E. , Kollipara Avinash , Allen John , Zhang Yugen , Ezzell J. Ashley , Darville Toni , Montgomery Stephanie A. , Nagarajan Uma M.
Published: October 2020

Chlamydia trachomatis infection of the female genital tract can lead to irreversible fallopian tube scarring. In the mouse model of genital infection using Chlamydia muridarum, IL-1R signaling plays a critical role in oviduct tissue damage. In this study, we investigated the pathologic role of IL-1α, one of the two proinflammatory cytokines that bind to IL-1R. Il1a−/− mice infected with C. muridarum cleared infection at their cervix at the same rate as wild-type (WT) mice, but were significantly protected from end point oviduct damage and fibrosis. The contribution of IL-1α to oviduct pathology was more dramatic than observed in mice deficient for IL-1β. Although chlamydial burden was similar in WT and Il1a−/− oviduct during peak days of infection, levels of IL-1β, IL-6, CSF3, and CXCL2 were reduced in Il1a−/− oviduct lysates. During infection, Il1a−/− oviducts and uterine horns exhibited reduced neutrophil infiltration, and this reduction persisted after the infection resolved. The absence of IL-1α did not compromise CD4 T cell recruitment or function during primary or secondary chlamydial infection. IL-1α is expressed predominantly by luminal cells of the genital tract in response to infection, and low levels of expression persisted after the infection cleared. Ab-mediated depletion of IL-1α in WT mice prevented infection-induced oviduct damage, further supporting a key role for IL-1α in oviduct pathology.
On localizations of quasi-simple groups with given countable center
Authors: Flores Ramón , Rodríguez José L.
Published: October 2020

A group homomorphism

i\colon H \to G

is a
localization
of

H

, if for every homomorphism

\varphi\colon H\to G

there exists a unique endomorphism

\psi\colon G\to G

such that

i \psi=\varphi

(maps are acting on the right). Göbel and Trlifaj asked in [18, Problem 30.4(4), p. 831] which abelian groups are centers of localizations of simple groups. Approaching this question we show that every countable abelian group is indeed the center of some localization of a quasi-simple group, i.e., a central extension of a simple group. The proof uses Obraztsov and Ol'shanskii's construction of infinite simple groups with a special subgroup lattice and also extensions of results on localizations of finite simple groups by the second author and Scherer, Thévenaz and Viruel.
The homology of the Katsura–Exel–Pardo groupoid
Authors: Ortega Eduard
Published: October 2020

We compute the homology of the groupoid associated to the Katsura algebras, and show that they capture the

K

-theory of the

C^*

-algebras in the sense of the (HK) conjecture posted by Matui. Moreover, we show that several classifiable simple

C^*

-algebras are groupoid

C^*

-algebras of this class.
Can tax competition boost demand? Causes and consequences of the global race to the bottom in corporate tax rates
Authors: Woodgate Ryan
Published: October 2020

Corporate tax rates have been consistently falling around the world for decades now. This paper aims to explain the causes and consequences of this ‘global race to the bottom’. In particular, the author wishes to test the hypothesis that this race to the bottom is driven by demand-boosting corporate tax competition, where, contrary to traditional Kaleckian theory, lower corporate taxes may positively affect demand through increased investment due to multinational enterprises (MNEs) that seek higher net profits through (re)locating in low-tax jurisdictions. In order to do so, the author builds a general theory of the effect of average effective corporate tax rates (AECTRs) on MNE location. This theory is used to justify the addition of a tax-sensitive foreign direct investment channel in the investment function of a canonical Kaleckian model. As a result, this paper determines the conditions under which a country may be ‘tax-competition-led’, where lowering AECTRs increases demand through increased MNE investment and in spite of the negative effect on government expenditure given a balanced budget. The findings of this paper are that it is possible for an economy to be tax-competition-led, though it is unlikely in many cases given the existence of a coordination problem that lessens or nullifies the effect of lowering AECTRs when many countries do so simultaneously. The author refers to this problem as the ‘paradox of tax competition’, since, like other fallacies of composition commonly identified in Post-Keynesian thought, this is a phenomenon where the benefits of one country acting alone are reduced or eliminated if other countries act the same way at the same time. Based on this model, crude but nonetheless informative estimates are given that indicate that the race to the bottom has had a negative effect on demand in the vast majority of OECD countries. In this sense, the author finds that the persistence of policymakers to continue to compete on corporate taxes ‘imprudent’. Model-consistent policy recommendations are offered, chief among which are tax coordination or, failing that, technical changes in how individual countries collect corporation tax.
Macroeconomic performance under evolutionary dynamics of employee profit-sharing
Authors: Lima Gilberto Tadeu , da Silveira Jaylson Jair
Published: October 2020

This paper investigates the impact on capacity utilization and economic growth as variables driven by effective demand of income distribution featuring the possibility of profit-sharing with workers. Firms choose to compensate workers with either a base wage or a share of profits on top of this base wage. In accordance with robust empirical evidence, workers in sharing firms have higher productivity than workers in non-sharing firms. The distribution of employee compensation strategies and labor productivity across firms is evolutionarily time-varying. Two major results carrying relevant theoretical and policy implications are obtained. First, heterogeneity in employee compensation strategies across firms (and therefore earnings inequality across workers) may emerge as a long-run equilibrium outcome. Second, beyond the short run, a higher fraction of profit-sharing firms may result in either higher or lower rates of capacity utilization and economic growth.
Przestrzenne i czasowe zróżnicowanie natężenia potoków pasażerskich w kolejowych połączeniach dojazdowych do Wrocławia
Authors: Jurkowski Wojciech
Published: October 2020

Spatial and temporal patterns of railway commuting to Wrocław The development and optimisation of the agglomeration and regional railway system is one of the basic challenges for the regional policy of the local government in Poland. There are many studies focusing on the problems of functioning of railway transport in agglomeration areas, however there are less studies dealing with the issue of demand for railway services during the day. It is a evident research gap. The main purpose of this article is to recognize the spatial and temporal differentiation of the railway passenger volume in Wrocław. The article presents the number of passengers arriving and departing from Wroclaw according to particular directions, and identifies peak hours based on the daily distribution of passenger volume in specific time intervals.
Rower podmiejski – koncepcja roweru publicznego na obszarach codziennych dojazdów do miast na przykładzie Polski
Authors: Wolny-Kucińska Ada
Published: October 2020

Bike-sharing in commuting zones of cities and towns – the case of Poland The characteristics and analysis of the development of bike – sharing systems have been the subject of many studies in the last decade. There is a fairly widespread belief that most public bicycle systems are located in densely populated urban areas, while this innovative communication solution becomes an attractive alternative to public transport in functional urban areas hinterlands. The purpose of the study is to show the types that bike – sharing have in functional urban areas. The subject of the analysis are bike – sharing systems adopted in Poland in the period from 2008 to 2019. Particular attention was paid to the system’s function, its availability and spatial coverage. The public bicycle types were compared. Moreover, the possibilities and development directions of this mode of transport were determined. The conducted research shows the growing role of the bicycle in functional urban area’s transport. It becomes an important link in multimodal transport, connecting the city with its immediate surroundings. It is also increasingly used to connect the centre of a rural, urban, or urban-rural municipality with distant housing estates or towns.
Competitive Circular Economy Management. The Mitsubishi Corporation Case
Authors: Brondoni Silvio M.
Published: October 2020

In today’s scenario of ‘hyper competition’, global corporations face many other MNCs (more and more frequently based in the US, China, South Korea, Taiwan and Europe). In oversize economy, global companies move to adopt closed innovation policies. In particular, the circular economy suggests that sustainable outputs can be achieved without loss of revenue or extra costs for global manufacturers. The transformation from MNCs to global networks has led towards vertical specialization and highly diversified patterns of collaboration through inter-firm and intra-firm transactions coordinated by global corporations. As we can see from the experience of the greatest global corporations (e.g., Mitsubishi Corporation), the biggest global companies see the circular economy as a specific tool to compete, in the context of a network vision (competitive circular economy management).
Circular Economy and Strategic Risk
Authors: Gennari Francesca , Cassano Raffaella
Published: October 2020

Governments and international organizations are focusing on resource consumption, both on the way resources are produced or extracted, and on the disposal of waste produced at the end of product lifecycle. At the same time, companies are called upon to rethink their business strategies and to adapt their management models, which need to be inspired by sustainable development. In this sense, a systemic and integrated vision of the economic, social and environmental dimensions is essential to guarantee an effective corporate governance sustainability strategy. Furthermore, the change of business model towards the Circular Economy implies new challenges as managing the strategic risk in an integrated way. The aim of this article is to provide theoretical considerations about the transition from linear to circular economic model, in relation to the profound change of the company’s core values and strategic risk.
INDUSTRY 4.0: CHALLENGES, OPPORTUNITIES, AND STRATEGIC SOLUTIONS FOR BANGLADESH
Authors: Bhuiyan Abul Bashar , Ali Md. Jafor , Zulkifli Norhayah , Kumarasamy Mokana Muthu
Published: October 2020

In the recent decade, the term Industry 4.0 or Fourth Industrial Revolution is a common buzzword represents the adoption of disruptive digital technologies (Internet of things, Big Data, 3D printing, Cloud computing, Autonomous robots, Virtual reality, Augmented reality, Self-driving car, Cyber-physical system, Artificial intelligence, Smart sensors, Nanotechnology, Drones, and Biotechnology, etc.) in the production process which is transforming the manufacturing units into smart factories and experiencing a great change in the global value chain. Moreover, these revolutionary digital technologies have a profound impact on the economy, growth, globalization, governments, international trade, global supply chain, and human capital transformation, etc. The present review study aims to explore the impact, challenges, and opportunities of the fourth industrial revolution based on empirical findings specially and extensively in the context of Bangladesh. The study finds regardless of having enormous potentiality, the application of the fourth industrial revolution is far lagging for some challenges i.e. lack awareness, insufficient capital, lack of infrastructure, lack of skilled human capital, and some socio-economic challenges. This review paper will also develop conceptual links with the relevant aspect of strategic planning and application of key industry 4.0 technologies and help to formulate future policy guidelines regarding opportunities, application, and strategic decision making for the fourth industrial revolution in Bangladesh.
Organizational and Methodological Guidelines for Training Education Managers to Implement the Strategy of Corporate Social Responsibility
Authors: Вila Olena , Gontareva Irina , Babenko Vitalina , Kovalenko Olena , Gliebova Nataliia
Published: October 2020

The article highlights the theoretical bases for professional training of future education managers to effectively implement the strategy of corporate social responsibility in educational institutions. There outlined prospects for introducing a cluster of elective courses for masters at faculties of education oriented towards acquiring knowledge on design tools and successfully applying strategies of corporate social responsibility in institutions of pre-school, primary, out-of-school, and alternative education. The authors propose an algorithm for a phased construction of a practice-oriented process of training education masters, which is developed based on their previous theoretical works. Its structure includes a set of individual research tasks aimed to create promising corporate social responsibility projects in institutions of pre-school, primary, special, out-of-school, and alternative education of various forms of ownership
Foot-ball Mulato e o imaginário nacional: a atmosfera de sentidos da Copa de 1938
Authors: Helal Ronaldo George , Mostaro Filipe
Published: October 2020

Este artigo tem como objetivo indicar a influência do gênero crônica na elaboração e solidificação de um imaginário nacional em torno do futebol e na proliferação de seus sentidos na sociedade. Elegemos como objeto de estudo o artigo Foot-ball Mulato escrito pelo sociólogo Gilberto Freyre no Diário de Pernambuco no dia 17 de junho de 1938, em meio a realização da Copa do Mundo do mesmo ano. Procuramos compreender através da análise de narrativas (MOTTA, 2013) como Freyre projeta um mundo selecionando ações e articulando-as com o imaginário nacional para reforçar seu pensamento da miscigenação como algo positivo e tendo o sucesso da seleção brasileira de futebol no torneio como exemplo mais fulgurante.
ECOLOGICAL SURVEY OF THE FLORA OF PORTO RICO
Authors: Cook Melville T.
Published: October 2020

Resumen en inglés.