30 research outputs found

    Resource Allocation in Wireless Body Area Networks: A Smart City Perspective

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    Healthcare is an essential service in smart cities. To deploy healthcare systems in such cities, personal health monitoring systems, infrastructure for collecting and delivering individual data, and a system for diagnosing symptoms are required. For the first requirement, wireless body area networks (WBANs) have recently received considerable attention from research communities. Owing to their main distinguishable features from general wireless sensor networks, research challenges regarding WBANs have been focused on network topology around the body and implanted nodes, efficient resource allocation, and power control. In this chapter, we provide a comprehensive discussion on the emerging research trends in the area of wireless sensor networks and a discussion of WBANs in terms of their resource allocation

    An enhanced group mobility management method in wireless body area networks

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    Mobility management of wireless body area networks (WBANs) is an emerging key element in the healthcare system. The remote sensor nodes of WBAN are usually deployed on subjects’ body. Certain proxy mobile IPv6 (PMIP) methods have been recommended, however, PMIP is relatively impractical in group mobility management pertaining to WBAN. It is likely to cause enormous registration and handover interruptions. This paper presents an approach aims at overcome these limitations using improved group mobility management method. The method emphasizes on incorporation of authentication, authorization, and accounting (AAA) service into the local mobility anchor (LMA) as an alternative to independent practice. Furthermore, proxy binding update (PBU) and AAA inquiry messages are merged. Additionally, AAA response and proxy binding acknowledge (PBA) message are combined. The experiment results demonstrate that the proposed method outperforms the existing PMIP methods in terms of delay time for registration, the handover interruptions and the average signaling cost

    New Trends in Development of Services in the Modern Economy

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    The services sector strategic development unites a multitude of economic and managerial aspects and is one of the most important problems of economic management. Many researches devoted to this industry study are available. Most of them are performed in the traditional aspect of the voluminous calendar approach to strategic management, characteristic of the national scientific school. Such an approach seems archaic, forming false strategic benchmarks. The services sector is of special scientific interest in this context due to the fact that the social production structure to the services development model attraction in many countries suggests transition to postindustrial economy type where the services sector is a system-supporting sector of the economy. Actively influencing the economy, the services sector in the developed countries dominates in the GDP formation, primary capital accumulation, labor, households final consumption and, finally, citizens comfort of living. However, a clear understanding of the services sector as a hyper-sector permeating all spheres of human activity has not yet been fully developed, although interest in this issue continues to grow among many authors. Target of strategic management of the industry development setting requires substantive content and the services sector target value assessment

    Washington University Senior Undergraduate Research Digest (WUURD), Spring 2018

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    From the Washington University Office of Undergraduate Research Digest (WUURD), Vol. 13, 05-01-2018. Published by the Office of Undergraduate Research. Joy Zalis Kiefer, Director of Undergraduate Research and Associate Dean in the College of Arts & Scien

    Oceanography

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    How inappropriate to call this planet Earth when it is quite clearly Ocean (Arthur C. Clarke). Life has been originated in the oceans, human health and activities depend from the oceans and the world life is modulated by marine and oceanic processes. From the micro-scale, like coastal processes, to macro-scale, the oceans, the seas and the marine life, play the main role to maintain the earth equilibrium, both from a physical and a chemical point of view. Since ancient times, the world's oceans discovery has brought to humanity development and wealth of knowledge, the metaphors of Ulysses and Jason, represent the cultural growth gained through the explorations and discoveries. The modern oceanographic research represents one of the last frontier of the knowledge of our planet, it depends on the oceans exploration and so it is strictly connected to the development of new technologies. Furthermore, other scientific and social disciplines can provide many fundamental inputs to complete the description of the entire ocean ecosystem. Such multidisciplinary approach will lead us to understand the better way to preserve our "Blue Planet": the Earth

    Honey Bee Health

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    Over the past decade, the worldwide decline in honey bee populations has been an important issue due to its implications for beekeeping and honey production. Honey bee pathologies are continuously studied by researchers, in order to investigate the host–parasite relationship and its effect on honey bee colonies. For these reasons, the interest of the veterinary community towards this issue has increased recently, and honey bee health has also become a subject of public interest. Bacteria, such as Melissococcus plutonius and Paenibacillus larvae, microsporidia, such as Nosema apis and Nosema ceranae, fungi, such as Ascosphaera apis, mites, such as Varroa destructor, predatory wasps, including Vespa velutina, and invasive beetles, such as Aethina tumida, are “old” and “new” subjects of important veterinary interest. Recently, the role of host–pathogen interactions in bee health has been included in a multifactorial approach to the study of these insects’ health, which involves a dynamic balance among a range of threats and resources interacting at multiple levels. The aim of this Special Issue is to explore honey bee health through a series of research articles that are focused on different aspects of honey bee health at different levels, including molecular health, microbial health, population genetic health, and the interaction between invasive species that live in strict contact with honey bee populations

    2013 Oklahoma Research Day Full Program

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    This document contains all abstracts from the 2013 Oklahoma Research Day held at the University of Central Oklahoma

    Review on agriculture and rural development : X. évf. (2021) 1-2. sz.

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    Grapes and Wine

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    Grape and Wine is a collective book composed of 18 chapters that address different issues related to the technological and biotechnological management of vineyards and winemaking. It focuses on recent advances, hot topics and recurrent problems in the wine industry and aims to be helpful for the wine sector. Topics covered include pest control, pesticide management, the use of innovative technologies and biotechnologies such as non-thermal processes, gene editing and use of non-Saccharomyces, the management of instabilities such as protein haze and off-flavors such as light struck or TCAs, the use of big data technologies, and many other key concepts that make this book a powerful reference in grape and wine production. The chapters have been written by experts from universities and research centers of 9 countries, thus representing knowledge, research and know-how of many regions worldwide

    Innovative miniaturized electroanalytical approaches for the analysis of clinically relevant glycoproteins

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    El objetivo principal de esta Tesis Doctoral ha sido el desarrollo de nuevas herramientas y estrategias electroquímicas (ultra)-miniaturizadas (sensores serigrafiados y sistemas microfluídicos), combinadas con nanomateriales como transductores electroquímicos, para la determinación de biomarcadores glicoproteicos de gran relevancia en el diagnóstico de enfermedades. En el contexto del diagnóstico clínico actual, existe una tendencia hacia el diseño y desarrollo de dispositivos portátiles que permitan el análisis descentralizado de los laboratorios clínicos, y que puede quedar englobada bajo el término POCT (de sus siglas en inglés Point-of-Care Testing). Este término describe aquellas pruebas o ensayos que se realizan en lo que podría denominarse en el punto de necesidad (cerca o por el propio del paciente, incluso de forma remota). Además de los desarrollos propios de la electrónica, el desarrollo y éxito de la tecnología POCT ha dependido y depende en gran medida del diseño y desarrollo de nuevas tecnologías analíticas (ultra)-miniaturizadas. Los dispositivos basados en la transducción electroquímica han resultado ser esenciales en el desarrollo de (bio)-sensores, produciendo plataformas simples, pero precisas y sensibles, para el diagnóstico de enfermedades y ha sido uno de los enfoques más prometedores para el desarrollo de POCTs, debido en general a su instrumentación económica y a su fácil miniaturización. Esta Tesis Doctoral aborda el análisis de dos glicoproteínas: la alfa-1-ácido glicoproteína (AGP) y la transferrina (Tf). La primera se utiliza como biomarcador glicoproteico de procesos inflamatorios, y la segunda como biomarcador de una enfermedad rara denominada trastornos congénitos de la glicosilación (CDG). La detección electroquímica puede ser una buena alternativa para la determinación de glicoproteínas debido a su miniaturización inherente, sus elevadas sensibilidad y selectividad y su bajo coste. Sin embargo, la oxidación directa de las glicoproteínas presenta baja sensibilidad debido a que los carbohidratos presentes en las mismas son electroquímicamente inactivos en condiciones cercanas a las fisiológicas. Para paliar este inconveniente, se ha propuesto el uso de complejos de osmio (VI) con ligandos nitrogenados [Os (VI) L] como sonda electroquímica. El complejo de osmio (VI) reacciona con los grupos diol de los carbohidratos formándose un éster de osmato que produce dos señales electroquímicas en electrodos de carbono. El objetivo de la Tesis Doctoral ha sido el diseño y desarrollo de dos tipos de herramientas analíticas (ultra)-miniaturizadas compatibles con la tecnología POCT, sensores y sistemas microfluídicos electroquímicos, para el análisis de las glicoproteínas seleccionadas, AGP y Tf. En efecto, de forma específica se proponen, de forma evolutiva en lo que a las prestaciones analíticas requeridas por un POCT electroquímico se refiere: i) sensores electroquímicos serigrafiados basados en carbono y en carbono nanoestructurado para el análisis individual de las glicoproteínas, ii) microchip de electroforesis capilar para el análisis simultáneo de ambas y, iii) nuevos dispositivos microfluídicos desechables de flujo pasivo y con capacidad de integración de las etapas analíticas para la determinación individual de las glicoproteínas. Las herramientas electroquímicas desarrolladas han permitido no sólo la determinación rápida, fiable, in situ y con bajo coste de estos biomarcadores relevantes en el diagnóstico clínico de importantes enfermedades, sino un avance conceptual hacia la descentralización del análisis clínico y, por ende, una mejora del diagnóstico actua
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