Apple is one of the most important temperate-zone fruit trees in the world. Micropropagation of apple scion and rootstocks is an important method of rapid production of healthy and disease-free plants. In this research, in vitro propagation of three apple roottocks including Azayesh-Esfahan, Morabbaee-Mashhad and M9 was investigated. Shoot proliferation carried out in two basal media (MS and WP...

Background: Large scale high quality and low cost production of clinical grade mesenchymal stem cells (MSCs) is critical for facilitating clinical research and potential stem cell therapies. Use of Fetal Bovine/Calf serum (FBS/FCS) for the clinical application carries a risk for transmission of zoonosis, therefore alternative xeno-free cell culture techniques have been evaluated. The commercial...

BACKGROUND AND THE PURPOSE OF THE STUDY The potential of pectin as a bacterially degradable polysaccharide for colon drug delivery has been demonstrated. Due to the high solubility and swelling properties of pectin in aqueous media, it is frequently used in combination with water insoluble polymers for targeting drugs to the colon. The aim of this study was to evaluate free films containing pec...

the direct and indirect methods in solvent media and grinding method in a solvent-free media were used to prepare the mcm-41/zno and mcm-48/zno photocatalysts. the x-ray diffraction (xrd) patterns showed that zinc oxide nanoparticles were put into mcm-41 and mcm-48 substrates and there were zno crystallites as secondary phase in the extra framework of mesoporous materials. the decrease of surfa...

Abstract: Although serum is a main source of essential nutrients and growth factors, its use creates highly complex and poorly defined media. The use of serum-free media is more efficient than the use of media containing serum especially when the purification and characterization of antibodies are considered. In this study, we developed a serum-free medium system for cultivation of hybrid cells...

The Board of Parks and Recreation in Vancouver, BC approved a smoke-free bylaw in the city's parks, beaches and recreational facilities, effective 1 September 2010. We analyzed local news coverage and portrayal of the bylaw to understand the potential influence of news media on public perception of the bylaw in order to inform the media advocacy work of public health interest groups. We compile...

We de ne an m-multiple context-free grammar (m-mcfg) as in Seki et al. 1991. A multiple context-free grammar G is a ve-tuple 〈N,O,F,R, S〉, where N is a set of distinguished non-terminal symbols; O ⊆ ⋃ n∈N+(Σ ∗)n is a set of tuples of strings from the input alphabet Σ; F ⊆ ⋃ n∈N Fn, where Fn is the set of partial functions from On to O, is a set of string-transformation functions; R ⊆ ⋃ n∈N(N × ...

background: toxoplasmosis is considered as one of the most common infectious diseases caused by the protozoan parasite toxoplasma gondii . tachyzoite is the main form of toxoplasma and continuously is maintained in cell culture or injected into the mice peritoneal cavity. this study was designed to evaluate the survival rate of rh strain of t. gondii tachyzoites in different cell free, nutrient...

We address the problem of deriving meaningful semantic index information for a multi-media database using a semi-structured document model. We show how our framework, called feature grammars, can be used to (1) exploit third-party interpretation modules for real-world unstructured components, and (2) use context-free grammars to convert such poorly or unstructured input to semi-structured outpu...