Knowledge of the shape of dark matter halos is critical to our understanding of galaxy formation, dynamics, and of the nature of dark matter itself. Polar ring galaxies (PRGs) | early-type galaxies deened by their outer rings of gas, dust and stars on orbits nearly perpendicular to those of the central host | provide a rare probe of the vertical-to-radial axis ratio (q = c=a) of dark halos. We ...

We performed an extended analysis of the parameter space for the interaction of the Magellanic System with the Milky Way (MW). The varied parameters cover the phase space parameters, the masses, the structure, and the orientation of both Magellanic Clouds, as well as the flattening of the dark matter halo of the MW. The analysis was done by a specially adopted optimization code searching for th...

Dynamics of spiral galaxies derived from a given surface mass density has been derived by Toomre in a classic paper. We try to transform the singular elliptic function in the integral into a regular elliptic function. The result makes corresponding numerical evaluations and analytic analysis easier. It is applied to the study of the dynamics of Newtonian system and MOND as well. One shows clear...

Human mesenchymal stem cells (hMSC) are a heterogeneous cell population, which is reflected in varying morphological and biological properties. Three subpopulations with intrinsic characteristics can be distinguished: small rapidly self-renewing cells, spindle-shaped cells and large, flattened cells. Unfortunately, it has neither been possible to morphologically define these distinct cells cons...

The temporomandibular joint is one of the most intricate human articulations (TMJ). Each made up a mandibular condyle and its associated temporal cavity (glenoid fossa articular eminence). Human morphology can be divided into six types: Type I: Oval; II: Flattened; III: Diamond; IV: Crooked finger; V:Bifid VI: Bird beak. appears in several different age groups individuals many distinct ways. Co...