Sikmninarv. The polar, basipetal transport of indoleacetic acid helps to mlainitain l)olarity of auxin movement in coleoptiles of Azcna sativa L. by opposing acropetal diffusion. This conclusion is supported by 3 different kinds of experiments. In all 3 experiments, sections took up 14C carboxyl-labeled indole-3-acetic acid anaerobically, anid the distribution of auxin within all sections was s...

The synthesis of copper and silver silyl complexes containing either N-heterocyclic carbenes or nitrogen donors is described. Alterations made to both the neutral donor ligands as well as the silyl group provided access to a number of different compounds. Many of the complexes synthesized were studied in the solid state and the effect of the donor ligand on the final structure of the complexes ...

A short review of ultra-compact binaries, focused on ultra-compact X-ray binaries, is followed by a discussion of recent results of our VLT campaign to obtain optical spectra of (candidate) ultra-compact X-ray binaries. We find evidence for carbon/oxygen as well as helium/nitrogen discs and no evidence for (traces) of hydrogen. This suggests that the donors in the observed systems are white dwa...

The nitrogen atom is commonly considered to be the positive site in thiazolium cations. Counterintuitively, shortest cation···anion contacts salts and their benzoderivatives involve sulfur atom. geometric features of these allow for rationalization as charge assisted chalcogen bonds (ChBs). Analyses Cambridge Structural Database calculation surface electrostatic potential benzo[d]thiazolium cat...

The clinical significance of ABO and Rhesus blood group systems has been well documented. The objective of this study was to determine the frequency of ABO and Rhesus blood groups in blood donors in Lahore, Pakistan, with a view to generate data with multipurpose future practicalities in the field of medicine. Blood groups of 3000 blood donors were determined by commercially available standard ...

Bis(benzimidazole)amine-based copper complexes, with structural similarities to the active sites of Lytic Polysaccharide Monooxygenase enzymes (LPMOs), were tested for oxidative degradation cellulose. Spectroscopic characterization as well authentication one them, confirm a tetragonal coordination environment 3 nitrogen donors, thioether in axial positions. Aqueous cellulose was achieved CuII c...

introduction although renal transplantation from cadaver is common, living donors continue to be an important source of transplanted kidneys. recipients of living-donor kidneys demonstrate improved graft survival. in this study, we evaluated the outcomes of renal transplantation from cadaver, related donors and unrelated donors in isfahan. methods we evaluated all of the patients who underwent ...

objectives the aim of the present study was to determine the prevalence of anti-hbc and hbsag in blood donors. further, the study aimed to estimate the anti-hbc level at which hbv dna is detected in putative obi cases, as well as to search for mutations in the “a” determinant associated with the non-detection of hbsag in serum. conclusions we observed that as the anti-hbc levels increase, there...

background when using brain dead donors for organ donation, assessment of kidney function before the procedure is essential. objectives it would be ideal to find an early marker of viability of donor kidneys that is more accurate than creatinine. patients and methods the present study was conducted from march of 2011 to march of 2012, included 52 deceased donors. serum and urinary neutrophil ge...

background and objective: brucellosis is a zoonotic disease of worldwide distribution and has great economic importance. despite its control in many countries, it remains endemic in iran. brucellosis was investigated in many high risk occupational groups; however, few studies on the prevalence of brucellosis among blood donors are available. to determine the seroprevalence of brucellosis antibo...