Magnetization dynamics and field dependent magnetization of different devices based on 25-30 nm thick Permalloy (Py) films: such as single Py layers (Py/MgO; Py/CoFeB/Al2O3) and Py inserted as a magnetic layer in magnetic tunnel junctions (Py/CoFe/Al2O3/CoFe; Py/CoFeB/Al2O3/CoFe; Py/MgO/Fe) have been extensively studied within a temperature range between 300 K down to 5 K. The dynamic response ...

N-methylpyrrole (Py)-N-methylimidazole (Im) polyamides are small organic molecules that bind to DNA with sequence specificity and can be used as synthetic DNA-binding ligands. In this study, five hairpin eight-ring Py-Im polyamides 1-5 with different number of Im rings were synthesized, and their binding behaviour was investigated with surface plasmon resonance assay. It was found that associat...

Impermeable seed/fruit coat, i.e. physical dormancy (PY) occurring only in several genera of 18 angiosperm families plays an important role in controlling seed persistence and germination timing. It has been theoretically speculated that PY is more prevalent in drylands than in moist vegetation zones, but unequivocal support for this assertion is currently unavailable. The broad objective of th...

The Hedgehog (Hh) family of secreted proteins governs many key developmental processes by regulating Ci/Gli transcription factors at multiple levels including nuclear-cytoplasmic shuttling. Here, we investigate the mechanism underlying the regulation of Ci/Gli subcellular localization by identifying and characterizing a novel nuclear localization sequence (NLS) in the N-terminal conserved domai...

Nedd4 and Nedd4-2 are ubiquitin-protein ligases known to regulate a number of membrane proteins including receptors and ion transporters. Regulation of the epithelial Na(+) channel by Nedd4 and Nedd4-2 is mediated via interactions between the PY motifs of the epithelial sodium channel subunits and the Nedd4/Nedd4-2 WW domains. This example serves as a model for the regulation of other PY motif-...

social health is important to be assessed as a dimension of health. the aim of study was to determine domains and sub-domains of individual social health of iranians.this study was carried out with a qualitative approach, using thematic content analysis. twenty five experts participated in interviews, using individual semi-structured interviews between november 2010 and june 2011.this data supp...

The in situ reaction of the tripodal anion [EtAl((Me)Py)3](-) ((Me)Py = 6-Me-2-py) with SnCl2 gives the Janus-head ligand ((Me)Py)3Sn-Sn((Me)Py)3, containing a Sn-Sn bond, through a novel, one-pot reaction involving a combination of pyridyl transfer and metal-oxidation.

We have examined the electrocatalytic activity of iron phthalocyanine (FePc) and perchlorinated 16(Cl)FePc for oxygen reduction reaction (ORR) in alkaline medium with two molecules either adsorbed on external surface single-wall carbon nanotubes (SWCNT) or covalently anchored via an axial pyridine ligand pyridine-functionalized (py-SWCNT). Regardless particular type, ORR is higher when substrat...