Background: Bone is a biological complex structure primarily comprising collagen and minerals. It important to demineralize these mineralized tissues remove their calcium apatite crystals for analysing the sub-cellular, cellular, fibrillar architecture. Six demineralizing agents’ efficacy was examined by assessing duration, ease of handling tissue, staining, histological criteria. The present s...

Reactions of the tetraphosphine ligand N,N,N',N'-tetra(diphenylphosphanylmethyl)ethylene diamine) (dppeda) or 1,4-N,N,N',N'-tetra(diphenylphosphanylmethyl)benzene diamine (dpppda) with NiCl2, ancillary ligand (C2H5)2NCS2Na (Na(dtc)) and NH4PF6 afforded two binuclear complexes [(dtc)Ni(dppeda)Ni(dtc)](PF6)2 (1) and [(dtc)Ni(dpppda)Ni(dtc)](PF6)2 (2). Compounds 1 and 2 were characterized by eleme...

The role of auxin in controlling leaf expansion remains unclear. Experimental increases to normal auxin levels in expanding leaves have shown conflicting results, with both increases and decreases in leaf growth having been measured. Therefore, the effects of both auxin application and adjustment of endogenous leaf auxin levels on midrib elongation and final leaf size (fresh weight and area) we...

lnterveinal strips (10 x 1.5 mm) excised from growing tobacco (Nicotiana tabacum L. cv Xanthi) leaves curled 2 3 0 0 " when incubated for 20 h in 5 to 500 ~ L M a-naphthalene acetic acid or 5 0 to 500 p~ indole-3-acetic acid. Epinasty was not induced without auxin or by the auxin analog p-naphthalene acetic acid, and less substantial epinasty was induced in midrib and vein segments. Auxin treat...

Nano oxides of Manganese Nickel and Cobalt Nickel were synthesized by chemical coprecipitation method from the reaction of respective metal sulfides of manganese, nickel, cobalt and sodium carbonate using ethylene diamene tetra acetic acid as an effective capping agent. The carbonate precursors were heated at different temperatures so as to form their oxides. Through the X-ray line broadening t...

Indole-3-acetic acid stimulates ethylene production in the nodal region of pea stems, and the gas inhibits bud growth. At all concentrations of IAA there is a close correlation between the intensity and duration of ethylene production and the bud inhibition which results. Kinetin reverses the inhibitory actions of ethylene and IAA on bud growth. It is concluded that auxins suppress bud developm...

PURPOSE THE AIM OF THIS STUDY WAS TO DETERMINE THE EFFICIENCY OF ERBIUM, CHROMIUM: Yttrium-Scandium-Gallium-Garnet laser in different output powers for removing permanent resin cement residues and therefore its influence on microshear bond strength compared to other cleaning methods. MATERIALS AND METHODS 90 extracted human molars were sectioned in 1 mm thickness. Resin cement was applied to ...

BACKGROUND The most appropriate lock solution for central venous access devices is still to be defined. GAVeCeLT - the Italian group for venous access devices - has developed a consensus on the evidence-based criteria for the choice and the clinical use of the most appropriate lock solution for central venous catheters (excluding dialysis catheters). METHOD After the constitution of a panel o...