Background: The antioxidant components have been identified in some pine species. Antioxidant properties of proantocyanidins reduce free radicals induced by DNA fragmentation and lipid proxidation and also proanthocyanidines could curb lipid peroxidation. Objective: In this study, we analyzed different parts of Pinus eldarica (bark, seed and needle) and assessed their antioxidant contents. ...

In this work, the effects of the types of frother (MIBC, pine oil, and A65) and operational parameters (impeller speed and air flow rate) on the flotation of quartz coarse particles was investigated using nano bubbles (NBs). Quartz particles of the size of -425+106 mm and three types of frother were used for the flotation experiments. Also the impeller speed was 600 to 1300 rpm, and the air flo...

To gain insight in problems of industrial assembly operations, an anthropomorphic robot equipped with a vision system was used to insert differently shaped pegs into corresponding holes of a plastic ball. Spatial impedance control was used, to properly deal with the interaction between robot and environment and to elegantly chose the impedance of the robot. Simulations gave insight into the beh...

SUMMARY PINE-SPARKY supports the rapid, user-friendly and efficient visualization of probabilistic assignments of NMR chemical shifts to specific atoms in the covalent structure of a protein in the context of experimental NMR spectra. PINE-SPARKY is based on the very popular SPARKY package for visualizing multidimensional NMR spectra (T. D. Goddard and D. G. Kneller, SPARKY 3, University of Cal...

By applying a reflection principle we set up fully explicit representation formulas for the harmonic Green’s function for orthogonal sectors of the annulus of the unit ball of R. From the harmonic Green’s function we then can determine the Bergman kernel function of Clifford holomorphic functions by applying an appropriate vector differentiation. As a concrete application we give an explicit an...

A mobile robot toy must be designed to be capable of facing the variety of situations that can be experienced in a household environment, while still be appealing to children and create interesting and meaningful interactions, all at a reasonable cost. In this paper we present Roball, a rolling robot. Children are used to play with ball-shaped objects, making Roball implicitly appealing. In add...

Leiomyosarcomas of the spermatic cord are very rare malignant neoplasms.We report one case, a 64-year-old man presented with the painless, swelling, ball shaped mass in the right inguinal canal.Histopathological evaluation including immunohistochemistrystudiesconfirmed a conventional leiomyosarcoma. Currently there has been no evidence local recurrence or distant metastasis for three months of ...

Designing a mobile robotic toy is challenging work. The robot must be appealing to children and create interesting interactions while facing the wide variety of situations that can be experienced while playing with a child, and all at a reasonable cost. In this paper we present Roball, a ball-shaped robot that moves by making its external spherical shell rotate. Such design for a mobile robotic...