We continue here the attempt to bridge brane calculi with membrane computing, following the investigation started in [2]. Specifically, we consider P systems with objects placed on the membranes, and processed by membrane operations. The operations used in this paper are membrane creation (cre), and membrane dissolution (dis), defined in a way which reminds the operations pino, exo from a brane...

In this paper, we introduce a modified epidemic model on regular and scale-free networks respectively. We consider the birth rate δ, cure rate γ, infection rate λ, α from the infectious disease, and death rate β from other factors. Through meanfield analysis, we find that on regular network there is an epidemic threshold λc dependent on the parameters δ, γ, α, and β; while for power law degree ...

knowledge of the Chinese in the eighth century" which still remains a puzzle. Carlo Castellani makes a detailed comparison of the investigations of Bonnet and Buffon on the problem of generation, concluding that Buffon's approach was the sounder. The last item, a full bibliography of the writings of Walter Pagel compiled by Marianne Winder reminds the reader that this selection of essays, so sk...

BACKGROUND Melanosis Coli is described as black or brown discolouration of the mucosa of the colon. Its a benign condition, which arises from anthraquinone laxative abuse and has no symptoms of its own. The main importance of diagnosing Melanosis Coli correctly lies in the fact that if its extensive, there may be difficulty in differentiating it from ischemic colitis. CASE PRESENTATION We pre...

Abstract. We consider a dynamical system in R driven by a vector field −U ′, where U is a multi-well potential satisfying some regularity conditions. We perturb this dynamical system by a Lévy noise of small intensity and such that the heaviest tail of its Lévy measure is regularly varying. We show that the perturbed dynamical system exhibits metastable behaviour i.e. on a proper time scale it ...

'Nothing like the human hand' [1] is the title of Boivin's 1968 article reviewing current research and development in prosthetic hands at that time. This title holds true even today although technological advances have allowed amputees access to componentry offering greater function, cosmesis and efficiency of control. Childress also reminds us that hand replacement by means of prosthetic inter...

This presidential election year reminds us of the importance of each vote and of the integrity of the electoral process. Recent elections have been decided by very narrow margins. In this context, the voting rights and capacity of persons with dementia warrant attention. About 4.5 million Americans currently live with dementia. Whether these citizens should vote raises a host of ethical, legal,...

Cardiogenic unilateral pulmonary edema (UPE) is a rare clinical entity that is often misdiagnosed at first. Most cases of cardiogenic UPE occur in the right upper lobe and are caused by severe mitral regurgitation (MR). We present an unusual case of right-sided UPE in a patient with cardiogenic shock due to acute myocardial infarction (AMI) without severe MR. The patient was successfully treate...

This paper looks at some aspects of semantic metarepresentation. It is mostly concerned with questions more formal, concerning the representation format in semantic metarepresentations, and the way they are processed. §1 distinguishes between metacognition and metarepresentation in a narrow and broad sense. §2 reminds the reader of some main areas where metarepresentations have to be used. The ...

This is an intelligent book, entertaining, too, and well written. It reminds us of two important matters in family life, that are often overlooked: (1) the parents have rights as well as duties; (2) that family life is not lived in a vacuum, but is closely related to the world around it, and profoundly affected by the world's superstitions, codes and beliefs. It even realises that parents are P...