منابع مشابه
Memory-Demanding Password Scrambling
Most of the common password scramblers hinder passwordguessing attacks by “key stretching”, e.g., by iterating a cryptographic hash function many times. With the increasing availability of cheap and massively parallel off-the-shelf hardware, iterating a hash function becomes less and less useful. To defend against attacks based on such hardware, one can exploit their limitations regarding to th...
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The BRC has a complex electronic excited state, P*, that evolves into subsequent products P+Hand P+B-. Pump-dump-probe spectroscopy on the wild type BRC and on YM210W, a mutant with a stabilized, long lived P* excited state, has uncovered a new charge-separated state in both BRC’s. When P* is dumped, a fraction of its population is transferred to this state that has a strong Stark shift in the ...
متن کاملControlling Biases in Demanding Tasks
Many aspects affect the way humans perform tasks, among others somebody’s personality and current exhaustion level. Under varying conditions the quality of the performance is known to vary as well, for example, due to biases that occur. This paper introduces a cognitive control model addressing these aspects. It has been formally specified, tested in simulations for various scenarios, and forma...
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Several recent studies on both the development of counting and working-memory span tasks have provided results that could be interpreted as ruling out any cognitive resource model for counting. The aim of this study was to test the hypothesis that, even in adults, counting is a demanding task that requires the allocation of cognitive resources. In a first experiment, we asked adults to count ar...
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ژورنال
عنوان ژورنال: Astronomy & Geophysics
سال: 2014
ISSN: 1366-8781,1468-4004
DOI: 10.1093/astrogeo/atu048