TfR1 (transferrin receptor 1) mediates the uptake of transferrin-bound iron and thereby plays a critical role in cellular iron metabolism. Its expression is coupled to cell proliferation/differentiation and controlled in response to iron levels and other signals by transcriptional and post-transcriptional mechanisms. It is well established that TfR1 levels decline when cultured cells reach a hi...

Abstract We describe a combination of methods applied to obtain reliable estimations of population density using archaeological data. The combination is based on a hierarchical model of scale levels. The necessary data and methods used to obtain the results are chosen so as to define transfer functions from one scale level to another. We apply our method to data sets from western Germany that c...

If f (x, k) is the Jost solution and f (x) = f (0, k), then the I-function is I(k) := f ′ (0,k) f (k). It is proved that I(k) is in one-to-one correspondence with the scattering triple S := {S(k), k j , s j , 1 ≤ j ≤ J} and with the spectral function ρ(λ) of the Sturm-Liouville operator l = − d 2 dx 2 + q(x) on (0, ∞) with the Dirichlet condition at x = 0 and q(x) ∈ L 1,1 := {q : q = q, ∞ 0 (1 ...

Higher twist corrections to hadronic interactions become increasingly important at high energies. An effective way to resum all these contributions is the color glass condensate picture. We review the Kharzeev-Levin-Nardi (KLN)[1] approach to heavy ion collisions, which has successfully been applied to RHIC physics, and extrapolate this model to Iron-air collisions at energies up to the GZK (≈ ...

Neutron diffraction in Fe(Al) reveals incommensurate spin density waves (SDWs) in alloys known to be spin glasses. The wave vectors for crystals of Fe(34Al), Fe(40Al), and Fe(43Al) show n varying from 11 to 6 for q-->=2pi(h+/-1/n,k+/-1/n,l+/-1/n)/a(0), where (h,k,l) and a(0) characterize the parent bcc lattice of the CsCl structure. The magnetic reflections are present far above the spin-glass ...

The obligately autotrophic acidophile Thiobacillus ferrooxidans was grown on elemental sulfur in anaerobic batch cultures, using ferric iron as an electron acceptor. During anaerobic growth, ferric iron present in the growth media was quantitatively reduced to ferrous iron. The doubling time in anaerobic cultures was approximately 24 h. Anaerobic growth did not occur in the absence of elemental...

Monodisperse crystalline zero-valent iron, iron-nickel, iron-palladium nanowires were synthesised using template-directed electrodeposition methods. Prior to nanowire fabrication, alumina nanotemplates with controlled pore structure (e.g. pore diameter and porosity) were fabricated by anodising high purity aluminium foil in sulphuric acid. After fabrication of alumina nanotemplates, iron, iron-...