In this short note we study a dynamical system generated by two-parametric quadratic operator mapping 3-dimensional simplex to itself. This is an evolution of the frequencies gametes in two-locus system. We find set all (a continuum of) fixed points and show that each point nonhyperbolic. completely describe limit Namely, for any initial (taken from simplex) invariant containing unique operator...

Simplex meshes are simply connected meshes that are topologically dual of triangulations. In a previous work, we have introduced the simplex mesh representation for performing recognition of partially occluded smooth objectss3]. In this paper, we present a physically-based approach for recovering three-dimensional objects, based on the geometry of simplex meshes. Elastic behavior is modelled by...

simplicial complexes (ASCs) are one of the most known topological models [1, 89, 21, 32]. Semi-simplicial sets (SSSs) generalize them [82, 67, 68], i.e. a SSS can be associated with any ASC, but the converse is not true. In particular, SSSs can represent « curved » objects, maybe multi-incident, but it is not possible for ASCs. The definition type also differs: ASCs are sets of sets, SSSs are a...

We propose a new simplex-based direct search method for unconstrained minimization of a realvalued function f of n variables. As in other methods of this kind, the intent is to iteratively improve an n-dimensional simplex through certain reflection/expansion/contraction steps. The method has three novel features. First, a user-chosen integer m̄k specifies the number of “good” vertices to be reta...

Herpes simplex virus type 1 is an important epithelial pathogen and has the potential for significant morbidity in humans. Here we demonstrate that a cell surface scavenger receptor, macrophage receptor with collagenous structure (MARCO), previously thought to enhance antiviral defense by enabling nucleic acid recognition, is usurped by herpes simplex virus type 1 and functions together with he...

conclusions: in neonates and infants with primary diagnosis of sepsis, hsv infection should be considered especially if the clinical condition does not improve after 48 hours of antibiotic therapy, and sepsis still exists with elevated liver enzymes. results: among 150 neonates and infants younger than 3 months old with sepsis, the pcr results for detecting the hsv dna, were positive in 6 sampl...

abstract        background and objective: herpes simplex encephalitis is a life-threatening consequence of the central nervous system (cns) infection with herpes simplex virus (hsv). although it is a rare disease, mortality rates reach 70% in the absence of therapy and only a minority of individuals can return to normal function. the aim of this study was to determine possible correlation betwe...

background and objectives: encephalitis can cause a severe public health problem. the main aim of this research was to evaluate the medical laboratory results of patients with herpes simplex virus (hsv) encephalitis. materials and methods: diagnosis of encephalitis for these patients was firstly based on a clinical profile for herpes simplex encephalitis (hse), plus either a detected hsv1&2-dna...

background pcr is a molecular technique for herpes simplex virus (hsv) detection that can cause life-threatening infections such as encephalitis and keratitis. however, the main issues, false-negative results causing by pcr inhibitors, of this technique that reduce pcr efficiency. to overcome this problem, a competitive internal amplification control (iac) was constructed for conventional pcr u...