The Impact of Inoculation of Two Strains of Rhizobacteria on Radionuclide Transfer in Sesbania Grandiflora.

Transfer factors of some naturally-occurring and artificial radionuclides from an agricultural soil to rhizobacteria-treated Sesbania grandiflora, a small leguminous tree, were studied. Two plant growth promoting rhizobacteria (PGPR) strains (SCR17 and PCE2) were used to carry out an agricultural experiment in pots in semi-arid region (Syria). The results showed the bacterial strain (SCR17) increased the transfer and accumulation of U and K in Sesbania grandiflora, while both bacterial strains showed no effect on the accumulation of Th, Ra, Po and Pb in the treated plants.

Qualitative Exploration of the Experiences of People Who Use Captagon and Therapists in Jordan.

Captagon (Fenethylline) is an amphetamine type stimulant (ATS) and one of the most popular substances of use in the Middle East. This study aims to describe and analyze the trajectory of captagon use, severity of addiction and withdrawal symptoms and its effect on quality of life from the perspectives of people who use captagon, who receive treatment as well as therapists. This study took a qualitative approach, using semi-structured, audio-recorded interviews, which were transcribed verbatim, translated to English and coded using Nvivo software for thematic analysis.

Treatment of produced water using Mn oxide nanoparticales loaded on walnut shells.

Sorption of Ra from produced water with oil production on manganese oxide nanoparticles loaded on walnut shell media was investigated using batch-type technique. The results showed that Ra is effectively adsorbed onto the adsorbent with equilibrium time of approximately 30 min. Removal efficiency of Ra from produced water depends mainly on the adsorbent dose and concentration of associated ions; removal efficiency decreased when their concentrations increase.

Assessment of natural radionuclide transfer factors and partition coefficients in some Syrian soils.

Transfer factors of radium 226(Ra), lead 210(Pb), polonium 210 (Po), uranium 238 (U) and thorium 234(Th) from five different agricultural soils in Syria to coriander, parsley and mint were investigated in a pot culture experiment. Geometric means of transfer factors (TF)wereRa (0.13),Pb(0.