Friable callus was initiated from shoot apices of Gloriosa superba L. on basal MS medium supplemented with 2, 4-D (4mg L(-1)) + Kn(5 mg L(-1)) + CH(10 mg L(-1)) + CW(20%). Subculture of callus on the same medium after 4-5 weeks showed induction of large number of somatic embryos, which was confirmed with histological studies. Development of embryoids in plantlet took place when the embryogenic ...

The complex, relative dielectric permittivity " of dry desert sand, collected at the Grand Erg Oriental in Ksar Ghilane, Tunisia, in October 1994, was measured with microwave resonators at frequencies between 0.245 and 6 GHz. The results are presented here. Whereas the real part "0 is nearly independent of frequency, a monotonous decrease of the imaginary part "00 with increasing frequency is o...

The effects of adding of a range of organic amendments (biosolids, spent mushroom compost, green waste compost and green waste-derived biochar), at two rates, on some key chemical, physical and microbial properties of bauxite processing sand were studied in a laboratory incubation study. Addition of all amendments tended to decrease bulk density and macroporosity but increase total porosity, av...

Models have been developed to calculate the diffusion of radioxenon through porous environmental media such as sand and soil. Initial experiments have also been conducted to determine the feasibility of radioxenon transport through soil and sand columns. The initial studies investigated method detection limits for xenon detection. These results show that stable xenon may be detected through pro...

To better understand and interpret seismoelectric measurements acquired over vadose environments , both the existing theory and the wave propagation modelling programmes, available for saturated materials, should be extended to partial saturation conditions. We propose here an extension of Pride's equations aiming to take into account partially saturated materials, in the case of a water–air mi...

Sinusoidal horizontal vibrations have been applied to a parallelepiped containing rounded sand grains. To model the granular medium behavior, a commercial software based on Molecular Dynamics has been used. The influence on the rheologic behavior of many process parameters, such as the dimensionless acceleration and the frequency has been studied. The velocity, density, pressure and mass flow f...

Over the last decade, more and more studies have been focusing on the bio preservation of various fermented food products, such as dairy products, in order to eliminate the use of synthetic chemical sand additives as preservatives. However, the major problem is that results obtained in laboratory-scale, under well controlled experimental conditions and laboratory chemical designed medium, are n...

Interpreting observations of frequency-dependence in backscatter from the seafloor offers many challenges, either because multiple frequencies are used for different observations that will later be merged or simply because seafloor scattering models are not well-understood above 100 kHz. Hindering the understanding of these observations is the paucity of reported, calibrated acoustic measuremen...

Issue: Processed recycled glass has been sold as an abrasive blasting medium under several brand names in different parts of the United States. However, limited public information is available regarding the performance of finely sized crushed glass in abrasive applications because manufacturers have developed their own proprietary data. Historically, the predominant material used for abrasive b...

OBJECTIVES To assess the effect of monoclonal antibodies (MABS) raised against L. major derived LPG on L. major development in vitro and in its natural vector P. duboscqi. Also determine whether LPG molecule and the sand fly the gut lysates have shared epitopes. DESIGN A laboratory based study. SETTING Colony bred P. duboscqi sand flies and all other experiments were done under laboratory c...