510 research outputs found

    Moral hazard and private monitoring.

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    1This paper incorporates earlier work by Bhaskar [4] and unpublished notes by van Damme. We are grateful to Tilman Börgers, Dilip Mookherjee, Debraj Ray, an anonymous referee, an associate editor, and numerous seminar audiences for useful comments. The first author thanks the CentER for Economic Research (Tilburg) for its hospitality while some of this research was carried out.

    Controlling the sharpness of ZnO tetrapods by restricted zinc oxidation in the open air: a low turn-on field emitter stabilized by graphene

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    A simple, novel and economical approach was developed for the synthesis of ZnO tetrapods through the controlled open air oxidation of a commercial zinc foil. Unrestricted by stringent criteria such as the maintenance of a high vacuum level or the usage of catalysts, this protocol yields scalable amounts of high quality tetrapods, thus highlighting its convenience over other reported methods. A thin coating of gold on top of the zinc foil is found to restrict the free open air oxidation and thus plays a pivotal role in this alternative kind of tetrapod formation. Investigations using cathodoluminescence spectroscopy confirmed the high optical quality of the tetrapods. Additionally, these tetrapods are found to exhibit an excellent electron emission performance. Finally, with the expectation of gaining better field enhancement, thermally reduced graphene oxide is attached to the tetrapods. This hybrid system is observed to possess outstanding electron emission activity with very low turn-on and threshold field values, as well as much improved stability, which were not achieved for the separate components. This indicates the potential usability of these materials in field emission nanodevices

    Book ReviewOpen Access: The Road to Freedom

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    Open Access: The Road to Freedom; edited by Narayan Chandra Ghosh, Parthasarathi Mukhopadhyay, Bhaskar Mukherjee, and Jiban K. Pal; Prova Prakashani, Kolkata, 2018, hardcover, 350 pages, ISBN 9789383658206

    Moral hazard and private monitoring

    No full text
    1This paper incorporates earlier work by Bhaskar [4] and unpublished notes by van Damme. We are grateful to Tilman Börgers, Dilip Mookherjee, Debraj Ray, an anonymous referee, an associate editor, and numerous seminar audiences for useful comments. The first author thanks the CentER for Economic Research (Tilburg) for its hospitality while some of this research was carried out

    Moral hazard and private monitoring

    No full text
    1This paper incorporates earlier work by Bhaskar [4] and unpublished notes by van Damme. We are grateful to Tilman Börgers, Dilip Mookherjee, Debraj Ray, an anonymous referee, an associate editor, and numerous seminar audiences for useful comments. The first author thanks the CentER for Economic Research (Tilburg) for its hospitality while some of this research was carried out

    Open Access: The Road to Freedom

    No full text
    The book is edited by Narayan Chandra Ghosh, et al. and published by Prova Prakashani, Kolkata (Copyright Society of Information Science, New Delhi,). It is the outcome of the 33rd annual conference of the Society of Information Science (SIS).https://digitalcommons.isical.ac.in/edited-books/1024/thumbnail.jp

    In Defense of Revolutionary Socialism: The Implications of Bhaskar Sunkara’s The Socialist Manifesto

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    This review of Bhaskar Sunkara’s The Socialist Manifesto locates the book within socialist debates about revolutionary praxis and the limits of reform versus revolution. The reviewer argues that the book has been accused, both fairly and unfairly, as “socialism without revolution,” an argument that can only be understood by delving more deeply into the positions advocated by the author. While Sunkara does in fact advance a “revolutionary socialism” in terms of concrete policy proposals, it is fair to ask critical questions about whether or not his limited interrogation of capitalist power is compatible with his self-professed goals

    BARON: Base-Station Authentication Through Core Network for Mobility Management in 5G Networks

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    Fifth-generation (5G) cellular communication networks are being deployed on applications beyond mobile devices, including vehicular networks and industry automation. Despite their increasing popularity, 5G networks, as defined by the Third Generation Partnership Project (3GPP), have been shown to be vulnerable against fake base station (FBS) attacks. An adversary carrying out an FBS attack emulates a legitimate base station by setting up a rogue base station. This enables the adversary to control the connection of any user equipment that (inadvertently) connects with the rogue base station. Such an adversary can gather sensitive information belonging to the user. While there is a large body of work focused on the development of tools to detect FBSs, the user equipment will continue to remain vulnerable to an FBS attack. In this paper, we propose BARON, a defense methodology to enable user equipment to determine whether a target base station that it is connecting to is legitimate or rogue. BARON accomplishes this by ensuring that the user receives an authentication token from the target base station which can be computed only by a legitimate and trusted entity. As a consequence, receiving such an authentication token from a base station ensures legitimacy of the base station. We evaluate BARON through extensive experiments on the handover process between base stations in 5G networks. Our experimental results show that BARON introduces an overhead of less than 1% during handover completion, which is 10000× lower than the overhead reported by a state-of-the-art method. BARON is also effective in thwarting an FBS attack and quickly recovering connection to a legitimate base station. Cyber Securit
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