22,852 research outputs found
E-book : Industrial Transformation In The Developing World (author: Michael T. Rock & David P. Angel)
No full textArsip Kuliah Online 2010: E-book : Industrial Transformation In The Developing World (author: Michael T. Rock & David P. Angel
E-book : "industrial Transformations In The Developing World (author: Michael T. Rock & David. P Angel)
No full textArsip Kuliah Online 2010: E-book : "industrial Transformations In The Developing World (author: Michael T. Rock & David. P Angel
Electric-field driven assembly of colloids confined near a surface: a Monte Carlo study
No full textIncludes bibliographical references
'Resting' and 'Fremantle Terzinas' Poems by author Hersri Setiawan (Translation into English by David T. Hill)
No full textIn late February 1993, Indonesian author Hersri Setiawan arrived for a brief visit to Australia to participate in the Perth Writers' Festival at the Fremantle Arts Centre. A former political prisoner held for nine years in detention without trial, he managed to leave Indonesia several years ago and now lives in the Netherlands as a political exile. These poems have been translated by David T. Hill
Nisbett, David T.
No full textEarly Ardmore history written by former Daily Ardmoreite employee, Feb. 24, 1917. 2 page letter; 4 page story, carbon copies; gift-Mrs. Fred ChiIdress, West Point, Mississippi (daughter of the author
The history of Ophelia. [electronic resource] : Published by the author of David Simple.
No full textThe author of David Simple = Sarah Fielding.Electronic reproduction.English Short Title Catalog,Reproduction of original from British Library
WU Polyomavirus in Children, Canada
No full textWU polyomavirus was detected in nasopharyngeal aspirates in 2 (2.5%) of 79 children with respiratory infections (both infected with respiratory syncytial virus) and in 5 (6.4%) of 78 asymptomatic children during the same winter season in Canada. The strains were closely related to Australian and American viruses based on analysis of large T antigen (TAg) and VP2 genes. The pathogenic role of WU virus is still uncertain
Can Verifiable Delay Functions Be Based on Random Oracles?
No full textBoneh, Bonneau, Bünz, and Fisch (CRYPTO 2018) recently introduced the notion of a verifiable delay function (VDF). VDFs are functions that take a long sequential time T to compute, but whose outputs y := Eval(x) can be efficiently verified (possibly given a proof π) in time t ≪ T (e.g., t = poly(λ, log T) where λ is the security parameter). The first security requirement on a VDF, called uniqueness, is that no polynomial-time algorithm can find a convincing proof π' that verifies for an input x and a different output y' ≠ y. The second security requirement, called sequentiality, is that no polynomial-time algorithm running in time σ < T for some parameter σ (e.g., σ = T^{1/10}) can compute y, even with poly(T,λ) many parallel processors. Starting from the work of Boneh et al., there are now multiple constructions of VDFs from various algebraic assumptions.
In this work, we study whether VDFs can be constructed from ideal hash functions in a black-box way, as modeled in the random oracle model (ROM). In the ROM, we measure the running time by the number of oracle queries and the sequentiality by the number of rounds of oracle queries. We rule out two classes of constructions of VDFs in the ROM:
- We show that VDFs satisfying perfect uniqueness (i.e., VDFs where no different convincing solution y' ≠ y exists) cannot be constructed in the ROM. More formally, we give an attacker that finds the solution y in ≈ t rounds of queries, asking only poly(T) queries in total.
- We also rule out tight verifiable delay functions in the ROM. Tight verifiable delay functions, recently studied by Döttling, Garg, Malavolta, and Vasudevan (ePrint Report 2019), require sequentiality for σ ≈ T-T^ρ for some constant 0 T-(T)/(2t) for a concrete verification time t
The future of scholarly communications
No full textThe academic publishing industry is set to celebrate 350 years of peer-reviewed scientific journals. However, there are significant shifts in the practice of scholarship, as scholars and citizens alike participate in an increasingly digital world. Is the scholarly article still fit for its purpose in this data-driven world, with new interdisciplinary methodologies and increasing automation? How might it be enhanced or replaced with new kinds of digital research objects , so as not to restrict innovation but rather create a flourishing sense-making network of humans and machines? The emerging paradigm of social machines provides a lens onto future developments in scholarship and scholarly collaboration, as we live and study in a hybrid physical-digital sociotechnical system of enormous and growing scale.Copyright 2014 David De Roure. This is an open access article distributed under the terms of the Creative Commons Attribution Licence, http://creativecommons.org/licenses/by/4.0/ which permits unrestricted use and distribution provided the original author and source are credited. If reusing please acknowledge "Insights: the UKSG journal" as the place of first publication. Please cite using the full DOI as specified at the end of the article: De Roure, D, The future of scholarly communications, Insights, 2014, 27(3), 233–238; DOI: http://dx.doi.org/10.1629/2048-7754.17
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