introduction: the purpose of this study was to evaluate the number of distal roots and canals in mandibular first molars and their internal anatomy radiographically within iranian population. materials and methods: a total of 310 distal roots of mandibular first molars were incorporated in this study and evaluated in terms of number of roots and number and types of canals. root canal systems we...

agrobacterium rhizogenes causes hairy root disease in plants. these hairy roots are ge-netically stable and grow rapidly. transformed hairy roots of hyoscyamus muticus in-duced by the bacterium can produce tropane alkaloids in trace amounts of intact plant tissues. in this research, in order to compare growth and biosynthetic stability of hairy roots with wild type ones, leaf and nodal segments...

The notion of virtual root was introduced in [5] in the case of polynomials. The virtual roots provide d continuous “root fonctions” on the space all real polynomials of a given degree d, with an interlacing property linking virtual roots of P and virtual roots of P ′. From a computational point of view, there is no need to know the coefficients with infinite precision in order to compute the v...

Using Agrobacterium rhizogenes due to create hairy roots is a useful method to product secondary metabolites in many medicinal plants. The transgenic hairy roots were induced from Peganum multisectum (Maxim) Bobrov a medicinally important species, by infecting leaf and stem explant with wild type Agrobacterium rhizogenes strain ATTCC 15834, which led to the induction of hairy roots from 19% of ...