Results 61 to 70 of about 7,225,806 (376)

Two-Sided Derivatives for Regular Expressions and for Hairpin Expressions

open access: yes, 2013
The aim of this paper is to design the polynomial construction of a finite recognizer for hairpin completions of regular languages. This is achieved by considering completions as new expression operators and by applying derivation techniques to the ...
F. Manea   +10 more
core   +2 more sources

Making tau amyloid models in vitro: a crucial and underestimated challenge

open access: yesFEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Automatic generating regular expression signatures for real network worms

open access: yesTongxin xuebao, 2013
A practical worm regular expression of automatic extraction method was presented,which involves four steps:sample collection from worm propagation, signature tre generation, removal of high false-positive signatures, and sig-nature merging. The advantage
Yong TANG   +3 more
doaj   +2 more sources

A Cauchy kernel for slice regular functions

open access: yes, 2009
In this paper we show how to construct a regular, non commutative Cauchy kernel for slice regular quaternionic functions. We prove an (algebraic) representation formula for such functions, which leads to a new Cauchy formula.
Colombo, Fabrizio   +2 more
core   +1 more source

Rewriting extended regular expressions

open access: yesTheoretical Computer Science, 1993
We consider an extended algebra of regular events (languages) with intersection besides the usual operations. This algebra has the structure of a distributive lattice with monotonic operations; the latter property is crucial for some applications. We give a new complete Horn equational axiomatization of the algebra and develop some term-rewriting ...
Peter D. Mosses, Valentin M. Antimirov
openaire   +3 more sources

Social context prevents heat hormetic effects against mutagens during fish development

open access: yesFEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere   +5 more
wiley   +1 more source

Efficient i-DFA construction algorithm based on state grouping

open access: yesTongxin xuebao, 2013
Regular expression matching plays an important role in many network and security applications.DFA is the preferred representation to perform regular expression matching in high-speed network,because of its high and stable matching efficiency.However,DFA ...
Deng-ke QIAO   +4 more
doaj   +2 more sources

Regular expression matching technology with two-stage memory

open access: yesTongxin xuebao, 2014
To solve the contradiction between the memory requirement and the inspection performance, a matching en-gine with two-stage memory was proposed for the first time. To deploy the state table to two-stage memory, theories of Markov chain was applied to the
Shu-hui CHEN, Cheng-cheng XU
doaj   +2 more sources

Minimizing nfa's and regular expressions

open access: yesJournal of Computer and System Sciences, 2005
AbstractWe show inapproximability results concerning minimization of nondeterministic finite automata (nfa's) as well as of regular expressions relative to given nfa's, regular expressions or deterministic finite automata (dfa's).We show that it is impossible to efficiently minimize a given nfa or regular expression with n states, transitions ...
Gregor Gramlich, Georg Schnitger
openaire   +3 more sources

Modifications in FLAP's second cytosolic loop influence 5‐LOX interaction, inhibitor binding, and leukotriene formation

open access: yesFEBS Letters, EarlyView.
The enzyme 5‐lipoxygenase (5‐LOX) catalyzes the first step in the biosynthesis of leukotrienes (LTs) involved in inflammatory pathophysiology. After cellular stimulation, 5‐LOX translocates to the nucleus, interacting with the 5‐LOX‐activating protein (FLAP) to form LTA4 from arachidonic acid (AA).
Erik Romp   +5 more
wiley   +1 more source

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