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Optically Powered Highly Energy-efficient Sensor Networks

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Book Series: Karlsruhe Series in Photonics and Communications / Karlsruhe Institute of Technology, Institute of Photonics and Quantum Electronics (IPQ) ISSN: 18651100 ISBN: 9783866449725 Year: Volume: 10 Pages: VIII, 107 p. DOI: 10.5445/KSP/1000032336 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:57
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In optically powered networks, both, communication signals and power for remotely located sensor nodes, are transmitted over an optical fiber. Key features of optically powered networks are node operation without local power supplies or batteries as well as operation with negligible susceptibility to electro-magnetic interference and to lightning. In this book, different kinds of optically powered devices and networks are investigated, and selected applications are demonstrated.

Unmet Needs in Dystonia

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889451951 Year: Pages: 77 DOI: 10.3389/978-2-88945-195-1 Language: English
Publisher: Frontiers Media SA
Subject: Neurology --- Medicine (General)
Added to DOAB on : 2017-10-13 14:57:01
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This Research Topic contains proceedings of the final conference for COST Action BM1101 “Network of dystonia syndromes”. The topic highlights consolidated knowledge and unmet needs in a field that is evolving very fast. This publication is based upon work from COST Action BM1101, supported by COST (European Cooperation in Science and Technology).

Keywords

Dystonia --- network --- cooperation --- Lumping --- Splitting

Quantitative Assessment and Validation of Network Inference Methods in Bioinformatics

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889194780 Year: Pages: 191 DOI: 10.3389/978-2-88919-478-0 Language: English
Publisher: Frontiers Media SA
Subject: Biotechnology --- General and Civil Engineering --- Genetics --- Science (General)
Added to DOAB on : 2016-03-10 08:14:33
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Scientists today have access to an unprecedented arsenal of high-tech tools that can be used to thoroughly characterize biological systems of interest. High-throughput “omics” technologies enable to generate enormous quantities of data at the DNA, RNA, epigenetic and proteomic levels. One of the major challenges of the post-genomic era is to extract functional information by integrating such heterogeneous high-throughput genomic data. This is not a trivial task as we are increasingly coming to understand that it is not individual genes, but rather biological pathways and networks that drive an organism’s response to environmental factors and the development of its particular phenotype. In order to fully understand the way in which these networks interact (or fail to do so) in specific states (disease for instance), we must learn both, the structure of the underlying networks and the rules that govern their behavior. In recent years there has been an increasing interest in methods that aim to infer biological networks. These methods enable the opportunity for better understanding the interactions between genomic features and the overall structure and behavior of the underlying networks. So far, such network models have been mainly used to identify and validate new interactions between genes of interest. But ultimately, one could use these networks to predict large-scale effects of perturbations, such as treatment by multiple targeted drugs. However, currently, we are still at an early stage of comprehending methods and approaches providing a robust statistical framework to quantitatively assess the quality of network inference and its predictive potential. The scope of this Research Topic in Bioinformatics and Computational Biology aims at addressing these issues by investigating the various, complementary approaches to quantify the quality of network models. These “validation” techniques could focus on assessing quality of specific interactions, global and local structures, and predictive ability of network models. These methods could rely exclusively on in silico evaluation procedures or they could be coupled with novel experimental designs to generate the biological data necessary to properly validate inferred networks.

Armut und Gesundheit - Öffentliche Ringvorlesung Wintersemester 2013/2014

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ISBN: 9783863952570 Year: Language: English|German
Publisher: Universitätsverlag Göttingen
Subject: Medicine (General)
Added to DOAB on : 2016-06-21 11:02:44
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Der Zusammenhang von Armut und Krankheit, bzw. mangelnder Gesundheit, ist immer schon klar ersichtlich gewesen. In einer Vorlesungsreihe stellten Vertreter verschiedener Disziplinen, die sich im Göttingen International Health Network (GIHN) zusammengeschlossen haben, ausgewählte Aspekte vor, die darstellen, wie Armut und Gesundheit miteinander verknüpft sind. Die Fragen, Probleme, Erklärungs- und Interventionsmodelle beziehen sich besonders auf Afrika und Indien und Anrainerstaaten. Mit der Vorlesungsreihe stellten sich die Vertreter der verschiedenen Fächer bewusst einer allgemeineren Öffentlichkeit und bemühten sich, auch komplexe Themen verständlich und doch auf neuestem Stand der Forschung darzustellen.

The Society for Worldwide Interbank Financial Telecommunication (SWIFT)

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Book Series: Routledge Global Institutions Series ISBN: 9780415631648 Year: Pages: 192 Language: English
Publisher: Routledge
Subject: Computer Science --- Business and Management
Added to DOAB on : 2017-02-02 11:01:17
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This book traces the history and development of a mutual organization in the financial sector called SWIFT, the Society for Worldwide Interbank Financial&#xD;Telecommunication. Over the last 40 years, SWIFT has served the financial services&#xD;sector as proprietary communications platform, provider of products and services,&#xD;standards developer, and conference organizer (Sibos). Founded to create efficiencies&#xD;by replacing telegram and telex (or “wires”) for international payments, SWIFT now&#xD;forms a core part of the financial services infrastructure. It is widely regarded as the&#xD;most secure trusted third-party network in the world serving 212 countries and over&#xD;10,000 banking organizations, securities institutions, and corporate customers.&#xD;Through every phase of its development, SWIFT has maintained the status of industry&#xD;cooperative, thus presenting an opportunity to study broader themes of globalization&#xD;and governance in the financial services sector.&#xD;In this book the authors focus on how the design and current state of SWIFT were&#xD;influenced by its historical origins, presenting a comprehensive account in a succinct&#xD;form which provides an informative guide to the history, structure, activities, and&#xD;future challenges of this key international organization.&#xD;This work will be of great interest to students and scholars in a wide range of&#xD;fields including IPE, comparative political economy, international economics, business&#xD;studies, and business history.

Politik der Mikroentscheidungen: Edward Snowden, Netzneutralität und die Architekturen des Internets

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Book Series: Digital Cultures ISBN: 9783957960351 9783957960368 Year: DOI: 10.14619/004 Language: German
Publisher: meson press
Subject: Media and communication
Added to DOAB on : 2017-04-23 15:18:20
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Ob beim Aufrufen einer Webseite, beim Versenden einer E-Mail oder beim Hochfrequenzhandel an der Börse: Auf ihrem Weg durch die Weiten digitaler Netze durchqueren Bits zahlreiche Knoten, an denen eine Reihe von Mikroentscheidungen getroffen werden. Diese Entscheidungen betreffen den besten Pfad zum Ziel, die Verarbeitungsgeschwindigkeit oder die Priorität zwischen den ankommenden Paketen. In ihrer vielschichtigen Gestalt bilden solche Mikroentscheidungen eine bislang nur marginal beachtete Dimension von Kontrolle und Überwachung im 21. Jahrhundert. Sie sind sowohl die kleinste Einheit als auch die technische Voraussetzung einer gegenwärtigen Politik digitaler Netzwerke – und des Widerstands gegen sie. Die aktuellen Debatten um Netzneutralität und Edward Snowdens Enthüllung der NSA-Überwachung bilden dabei lediglich die Spitze des Eisbergs. Auf dem Spiel steht nicht weniger als die Zukunft des Internets, wie wir es kennen.

Brain Networks in Aging: Reorganization and Modulation by Interventions

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889454167 Year: Pages: 170 DOI: 10.3389/978-2-88945-416-7 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Neurology
Added to DOAB on : 2018-11-16 17:17:57
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Old adults undertake multiple reduced cognitive abilities in aging, which are accompanied with specific brain reorganization in forms of regional brain activity and brain tissues, inter-region connectivity, and topology of whole brain networks in both function and structure. The plasticity changes of brain activities in old adults are explained by the mechanisms of compensation and dedifferentiation. For example, older adults have been observed to have greater, usually bilateral, prefrontal activities during memory tasks compared to the typical unilateral prefrontal activities in younger adults, which was explained as a compensation for the reduced brain activities in visual processing cortices. Dedifferentiation is another mechanism to explain that old adults are with much less selective and less distinct activity in task-relevant brain regions compared with younger adults. A larger number of studies have examined the plasticity changes of brain from the perspective of regional brain activities. However, studies on only regional brain activities cannot fully elucidate the neural mechanisms of reduced cognitive abilities in aging, as multiple regions are integrated together to achieve advanced cognitive function in human brain. In recent years, brain connectivity/network, which targets how brain regions are integrated, have drawn increasing attention in neuroscience with the development of neuroimaging techniques and graph theoretical analysis. Connectivity quantifies functional association or neural fibers between two regions that may be spatially far separated, and graph theoretical analysis of brain network examines the complex interactions among multiple regions from the perspective of topology. Studies showed that compared to younger adults, older adults had altered strength of task-relevant functional connectivity between specific brain regions in cognitive tasks, and the alternation of connectivity are correlated to behavior performance. For example, older adults had weaker functional connectivity between the premotor cortex and a region in the left dorsolateral prefrontal cortex in a working memory task. Interventions like cognitive training and neuro-modulation (e.g., transcranial magnetic stimulation) have been shown to be promising in regaining or retaining the decreasing cognitive abilities in aging. However, only few neuroimaging studies have examined the influence of interventions to old adult’s brain activity, connectivity, and cognitive performance. This Research Topic calls for contributions on brain network of subjects in normal aging or with age-related diseases like mild cognitive impairment and Alzheimer’s disease. The studies are expected to be based on neuroimaging techniques including but not limited to functional magnetic resonance imaging, Electroencephalography, and diffusion tensor imaging, and contributions on the influence of interventions to brain networks in aging are highly encouraged. All these studies would enrich our understanding of neural mechanisms underlying aging, and offer new insights for developing possible interventions to retain cognitive abilities in aging subjects.

Network and Migration in Early Renaissaance Florence, 1378-1433

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ISBN: 9789462988682 Year: DOI: 10.5117/9789462988682 Language: English
Publisher: Amsterdam University Press
Subject: Languages and Literatures
Added to DOAB on : 2019-01-15 13:34:06
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This book explores the co-development of political, social, economic, and artistic networks of Florentines working in the Kingdom of Hungary during the reign of Sigismund of Luxembourg. The social network of these politicians, merchants, artisans, royal officers, dignitaries of the Church, and noblemen is the primary focus of the book. Local Florentines constituted an extended network of "friends"; the existing personal connections among them were defined by common political interests, neighborhood proximity, marriage alliances, kinship ties, patronage, and company partnership. Through analysis of the links between these actors, the book addresses questions of the complexity of social ties in early Renaissance Florence, exploring how multiple types of networks shaped the dynamics of public and private spheres. It also seeks to reach more general conclusions about Florentine migration abroad and to envision ways in which early modern migratory groups were formed.

Enabling Technologies for Very Large-Scale Synaptic Electronics

Authors: ---
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889455089 Year: Pages: 105 DOI: 10.3389/978-2-88945-508-9 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Neurology
Added to DOAB on : 2019-01-23 14:53:42
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An important part of the colossal effort associated with the understanding of the brain involves using electronics hardware technology in order to reproduce biological behavior in ‘silico’. The idea revolves around leveraging decades of experience in the electronics industry as well as new biological findings that are employed towards reproducing key behaviors of fundamental elements of the brain (notably neurons and synapses) at far greater speed-scale products than any software-only implementation can achieve for the given level of modelling detail. So far, the field of neuromorphic engineering has proven itself as a major source of innovation towards the ‘silicon brain’ goal, with the methods employed by its community largely focused on circuit design (analogue, digital and mixed signal) and standard, commercial, Complementary Metal-Oxide Silicon (CMOS) technology as the preferred `tools of choice’ when trying to simulate or emulate biological behavior. However, alongside the circuit-oriented sector of the community there exists another community developing new electronic technologies with the express aim of creating advanced devices, beyond the capabilities of CMOS, that can intrinsically simulate neuron- or synapse-like behavior. A notable example concerns nanoelectronic devices responding to well-defined input signals by suitably changing their internal state (‘weight’), thereby exhibiting `synapse-like’ plasticity. This is in stark contrast to circuit-oriented approaches where the `synaptic weight’ variable has to be first stored, typically as charge on a capacitor or digitally, and then appropriately changed via complicated circuitry. The shift of very much complexity from circuitry to devices could potentially be a major enabling factor for very-large scale `synaptic electronics’, particularly if the new devices can be operated at much lower power budgets than their corresponding 'traditional' circuit replacements. To bring this promise to fruition, synergy between the well-established practices of the circuit-oriented approach and the vastness of possibilities opened by the advent of novel nanoelectronic devices with rich internal dynamics is absolutely essential and will create the opportunity for radical innovation in both fields. The result of such synergy can be of potentially staggering impact to the progress of our efforts to both simulate the brain and ultimately understand it. In this Research Topic, we wish to provide an overview of what constitutes state-of-the-art in terms of enabling technologies for very large scale synaptic electronics, with particular stress on innovative nanoelectronic devices and circuit/system design techniques that can facilitate the development of very large scale brain-inspired electronic systems

Redes, capital humano e geografias da competitividade

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Book Series: Geografias ISBN: 9789892611976 Year: Pages: 234 DOI: https://doi.org/10.14195/978-989-26-1197-6 Language: Portuguese
Publisher: Coimbra University Press
Added to DOAB on : 2019-04-23 16:21:06
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In the scope of the 16th Cultural Week of the University of Coimbra (2014) with as reunited a set of investigators who, sharing the same scientific concerns, discuss the issue(s) around the subjects of networks, human capital and geography of competiveness. It resulted in a set of research works about contemporary territorial relations, between continuous spatial logics and discontinued, Euclidian and topological in which, apart from the old geographical issues, slower, it were considered also the faster and technological mediate and networks structured relations. The urgency of studies in this are results from the importance that networks have in the strategical settlement of locations, gaining interest the analysis of the relations of geographic proximity and continuity, as well as the discontinued relations, those that seek strategic affinity associations yet scarred by distant and fragmented geographical positions. The discussion is, thus, developed around the understanding of how the strategic affirmation of places, on one hand, and the promotion of human capital, on the other, depend, at the same time, on old and new geographies, on the relations of proximity, relations at a distance (in networks) and still of the resilience of populations in the sense of the capability to adapt and answer reactively and proactively.

Keywords

Geography --- network --- human capital --- diaspora --- knowledge

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