A cornerstone of AGN unification schemes is the presence of an optically and geometrically thick dust torus. It provides the obscuration to explain the difference between type 1 and type 2 AGN. We investigate the influence of the dust distribution on the Eddington limit of the torus. For smooth dust distributions, the Eddingtion limit on the dust alone is 5 orders of magnitudes below the limit ...

OBJECTIVES In the first issue of the American Journal of Physical Anthropology, E.A. Hooton noted the expression of Eskimoid characteristics in the Icelandic skull, one of which was mandibular torus. Our goal is to evaluate this trait in another North Atlantic population, the Greenlandic Norse. MATERIALS AND METHODS An investigation of mandibular torus was carried out on all Greenlandic Norse...

The maximally compact representation of a regular orbit is in terms of its action-angle variables (J, θ). Computing the map between a trajectory's Cartesian coordinates and its action-angle variables is called torus construction. This article reviews various approaches to torus construction and their application to galactic dynamics.

A 54-year-old man who presented to the clinic for a routine examination was found to have a hard swelling in the floor of mouth. The swelling was noticed at the age of ten years and had been gradually progressing over the years. However, there was no history of chewing difficulty, dysphagia, dysarthria, oral ulcers or sleep disturbances. On examination, a 4x4 cm bony swelling was noted arising ...

A 61-year-old man with a history of diabetes, hypertension, hyperlipidemia and polysubstance abuse presented to the emergency department complaining of bony growths on his lower jaw. He had noticed these growths intermittently in the past. He reported pain only when his dentures were in place and food lodged against the growths. The patient denied ulceration, bleeding and drainage. He reported ...

Thegeodesic flowof theflatmetric on a torus isminimizing the polynomial entropy among all geodesic flows on this torus. We prove here that this properties characterises the flat metric on the two torus. Résumé Leflot géodésique desmétriques plates sur un toreminimise l’entropie polynomiale parmi tous les flots géodésique sur ce tore. On montre ici que cette propriété caractérise les métriques p...

The quasiperiodically forced logistic map is analyzed at the terminal point of the torus-doubling bifurcation curve, where the dynamical regimes of torus, doubled torus, strange nonchaotic attractor, and chaos meet. Using the renormalization group approach we reveal scaling properties both for the critical attractor and for the parameter plane topography near the critical point. @S1063-651X~98!...

We analyze the entanglement spectrum of Laughlin states on the torus and show that it is arranged in towers, each of which is generated by modes of two spatially separated chiral edges. This structure is present for all torus circumferences, which allows for a microscopic identification of the prominent features of the spectrum by perturbing around the thin-torus limit.