When the available statistical information is imperfect, it is dangerous to follow standard optimisation procedures to construct an optimal portfolio, which usually leads to a strong concentration of the weights on very few assets. We propose a new way, based on gener-alised entropies, to ensure a minimal degree of diversiication.

We report the discovery of 2M0056-08 as an equal-mass eclipsing binary (EB), comprising two red straggler stars (RSSs) with orbital period 33.9 d. Both have masses 1.419 Msun, identical to within 0.2%. appear be in early red-giant phase evolution; however, they are far displaced cooler temperatures and lower luminosities compared standard stellar models. The broadband spectral energy distributi...

During year 2008–11, some infected leaves of eucalypt trees (Eucalyptus camaldulensis Dehnh.) having blight and spot symptoms were collected in Golestan province (N Iran). The necrotic spots were appeared on both surfaces of the leaves and were circular to irregular, single to confluent, medium brown to light brown with red brown margin (Fig. 1A & B). In some cases, young leaves have been sever...

purpose: to report a case of free floating pyogenic granuloma within the lacrimal sac. case report: a 13 month old infant with unresolving dacryocystitis and history of two times failed probing and once failed turbinate fracture was scheduled for dacryocystorhinostomy (dcr). a free floating red mass was removed from the sac. histopathologic examination confirmed a diagnosis of pyogenic granulom...

amyloidosis of the upper aerodigestive tract is rare in the pediatric age group. we present two cases of pediatric laryngeal amyloidosis. both of them had hoarseness as the presenting symptom. diagnostic evaluation included flexible nasopharyngoscopy, rigid laryngoscopy, biopsy, computed tomography scan and laboratory tests. the results of congo red staining of the specimen were characteristic ...

The probabilistic Noisy OR model has been widely used as a means of reducing the amount of probabilistic information that is needed to specify the interaction between groups of variables. Motivated by our work on the diagnosis of faults in satellite subsystems , which required a similar synthesis of partial possibilistic information on interactions , we consider a number of ways of gener-alisin...