Joint morphogenesis is an important phase of prenatal joint development during which the opposing cartilaginous rudiments acquire their reciprocal and interlocking shapes. At an early stage of development, the prenatal hip joint is formed of a deep acetabular cavity that almost totally encloses the head. By the time of birth, the acetabulum has become shallower and the femoral head has lost sub...

All neuroimaging packages can handle group analysis with t-tests or general linear modeling (GLM). However, they are quite hamstrung when there are multiple within-subject factors or when quantitative covariates are involved in the presence of a within-subject factor. In addition, sphericity is typically assumed for the variance-covariance structure when there are more than two levels in a with...

Topicity terms for stereochemical relationships (homotopic, enantiotopic, diastereotopic, etc.) and topicity terms for stereochemical attributes (chirotopic and achiotopic) have been combined to discuss the stereochemistry of tetrahedral molecules. Stereochemical discussions due to such combined usage have exhibited complicated features that would cause misunderstanding or confusion. On the oth...

Abstract. Biology is a hot area of research in these days. One of the hottest issues is about the structure of bio-molecules which has been known one of the most important factors related to the functions of the protein. Hence, the global and local descriptors of the spatial structure are often needed. In this paper, we provide a measure for the sphericity of a protein. The measure is based on ...

Soils are particulate materials. Grain size determines the balance between particle-level forces (skeletal, weight, van der Walls attraction, double layer repulsion, capillary and viscous drag Figure 1). Grain size distribution establishes the range of possible particle packing configurations. And, particle shape (i.e., sphericity, angularity and roughness) defines particle interactions, such a...

in this study, the physical properties (size, mass, volume, density, geometric diameter, sphericity and friction coefficient on galvanized steel and wood surface) and some mechanical properties of flesh and skin tissue (modulus of elasticity, bioyield stress, yield strain and toughness) for small, medium and large melons of ghasri variety were determined. means comparison was done by duncan’s m...