We investigate the effect of cooperative interactions on the asymmetric exclusion process, which causes the particle velocity to be an increasing function of the density. Within a hydrodynamic theory, initial density upsteps and downsteps can evolve into: (a) shock waves, (b) continuous compression or rarefaction waves, or (c) a mixture of shocks and continuous waves. These unusual phenomena ar...

Essential thrombocythemia (ET) is a clonal stem cell disease characterized by isolated thrombocytosis and thrombohemorrhagic complications. We describe an unusual case of ET primarily presenting with skin symptoms including erythromelalgia and livedo reticularis (racemosa-type). Persistent thrombocytosis, bone marrow findings, JAK2 gene mutation, and markedly decreased ristocetin-cofactor activ...

Familial epistaxis is often encountered by Otolaryngologists. Osier in 1901 described a triad of symptoms consisting of epistaxis, positive family history and multiple telangiectasia. Harrison (1957) regards this phenomena as 'rare' and Mc Caffrey et al. (1977) calls it unusual Multiple Telangiectasia, the cause of which is unknown, has a dominant familial trait. It may be very easily missed wh...

We consider undercompressive traveling wave solutions of the partial differential equation ∂th+ ∂xf(h) = −∂x(h∂ xh) +D∂x(h∂xh), when the flux function f has the nonconvex form f(h) = h2 − h3. In numerical simulations, these waves appear to play a central role in the dynamics of the PDE; they also explain unusual phenomena in experiments of driven contact lines modeled by the PDE. We prove exist...

Double-layer two-dimensional electron systems can exhibit a fascinating collective phase believed to display both quantum ferromagnetism and excitonic superfluidity. This unusual phase has recently been found to exhibit tunneling phenomena reminiscent of the Josephson effect. A key element of the theoretical understanding of this bizarre quantum fluid is the existence of linearly dispersing Gol...

The main goal of the paper is to present a peculiar equilibrium model of large system of interacting particles with strong interaction. We study properties of this system for zero temperature, that is, we study ground states of the model. Moreover, it exhibits phenomena somewhat unusual for the modern mathematical statistical physics. Namely, the local equilibrium (defining the global equilibri...

Introduction Carney complex (CNC) is a disorder characterized by skin pigmentary abnormalities and benign cardiac,endocrine, skin and neuronal tumors. Areas of unusual lentigines are the most common presenting feature of CNC usually around the lips, eyes or genitalia increase in number at puberty. Cardiac myxomas may occur in any or all cardiac chambers, and leading to intracardiac obstruction ...

Both electrical injection and detection of spin-polarized electrons are demonstrated in a single wafer allsemiconductor GaAs-based lateral spintronic device, employing p+Ga,Mn As /n+-GaAs ferromagnetic Esaki diodes as spin aligning contacts. Spin-dependent phenomena, such as spin precession and spin-valve effect, are observed in nonlocal signal and the measurements reveal the unusual origin of ...

A twenty-eight-year-old woman with an eight-year history of partial hearing loss presented with a two-year history of worsening deafness and new-onset seizures. Evaluations of tympanic membranes, cochlea, and auditory brain stem reflexes demonstrated no physiologic basis for deafness. Video-EEG monitoring demonstrated that the patient responded normally to spontaneous auditory stimuli and that ...

A second order linear scalar diierential equation including a zero-th order term is approximated using rst the standard Galerkin method enriched with bubble functions. Static condensation of the bubbles suggest an unusual stabilized nite element method for which we establish a convergence study and obtain successful numerical simulations. The method is generalized to allow for a convection oper...