A left-forbidding grammar, introduced in this paper, is a context-free grammar, where a set of nonterminal symbols is attached to each context-free production. Such a production can rewrite a nonterminal provided that no symbol from the attached set occurs to the left of the rewritten nonterminal in the current sentential form. The present paper discusses cooperating distributed grammar systems...

In this paper we propose a condition for rejecting the input word by an accepting splicing system which is defined by a finite set of forbidding words. More precisely, the input word is accepted as soon as a permitting word is obtained provided that no forbidding word has been obtained so far, otherwise it is rejected. Note that in the new variant of accepting splicing system the input word can...

We can distinguish the evil person in two ways. One is to pick out some trait, or narrow cluster of traits, and argue that individuals are evil if they possess those traits to a sufficiently extreme degree. Call theories that characterize evil in this manner extremity views. The second method takes evil to consist in being vicious, not just in one respect, but thoroughly or consistently. Call t...

A 32-year-old woman presented with right-sided visual loss, hearing loss and diffuse headache. Examination confirmed CN-II, V1/2, and VIII neuropathies. MRI showed an infiltrative skull-base process involving the pachymeninges. Serology and histopathology confirmed idiopathic hypertrophic pachymeningitis.

The immersion relation is a partial ordering relation on graphs that is weaker than the topological minor relation in the sense that if a graph G contains a graph H as a topological minor, then it also contains it as an immersion but not vice versa. Kuratowski graphs, namely K5 and K3,3, give a precise characterization of planar graphs when excluded as topological minors. In this note we give a...

In this paper, we consider the problem of “evil twin” attacks in wireless local area networks (WLANs). An evil twin is essentially a phishing (rogue) Wi-Fi access point (AP) that looks like a legitimate one (with the same SSID name). It is set up by an adversary, who can eavesdrop on wireless communications of users’ Internet access. Existing evil twin detection solutions are mostly for wireles...