Exchange of macromolecules between the cytoplasm and the nucleus is mediated by dedicated transport channels in the nuclear envelope (NE) called nuclear pore complexes (NPCs). NPCs are embedded within NE at fusion sites between the inner and outer nuclear membrane. They are among the largest macro­ molecular assemblies in eukaryotic cells with an estimated mass of >50 MD (Hetzer et al., 2005; T...

Medium energy ion scattering has been used to study the kinetics of solid-phase epitaxial regrowth SPEG of ultrathin amorphous layers formed by room-temperature implantation of 5 keV energy phosphorus ions into Si 100 . The implants create P distributions with peak concentrations up to 7 1021 cm−3. SPEG has been driven by rapid thermal annealing, 475 °C TA 600 °C, for times up to 2000 s. At eac...

Zinc oxide films with different thicknesses have been synthesized by modified sol-gel technique. The films are polycrystalline in nature with average grain size between 32 and 57 nm. The thicker films are less strained than the thinner ones. The optical band gap of the films is ~ 3.22 eV. PL spectra are dominated by a strong luminescence peak at ~387 nm followed by a low intensity peak ~469 nm....

Roselite from the Aghbar Mine, Morocco, [Ca2(Co2+,Mg)(AsO4)2 2H2O], was investigated by X-ray Photoelectron and Raman spectroscopy. Spectroscopy revealed a cobalt to magnesium ratio of 3:1. Magnesium, calcium showed single bands associated with unique crystallographic positions. The oxygen 1s spectrum displayed two arsenate group crystal water. Arsenic 3d exhibited close that ratio, indicative ...

Based on the ROSAT All-Sky Survey we have conducted a large redshift survey as an ESO key programme to identify and secure redshifts for the X-ray brightest clusters found in the southern hemisphere. We present first results for a highly controlled sample for a flux limit of 3 · 10 erg s cm (0.1 2.4 keV) comprising 475 clusters (87% with redshifts). The logN-logS function of the sample shows an...

The reimbursement of hospital Part A cost by Medicare under the original prospective payment system (PPS) created serious financial problems for hospitals in many areas but was especially serious in patients receiving mechanical ventilation. Subsequent revisions of the PPS corrected some of the financial burden of the cost of such patients when the patient required tracheostomy for prolonged ve...

We propose high index contrast InGaP photonic wires as a platform for the integration of nonlinear optical functions in the telecom wavelength window. We characterize the linear and nonlinear properties of these waveguide structures. Waveguides with a linear loss of 12 dB/cm and which are coupled to a single mode fiber through gratings with a -7.5 dB coupling loss are realized. From four wave m...

Degradation of Amino Acids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 474 Influence of Methanogens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 475 Obligately Syntrophic Amino Acid Deamination . . . . . . . 475 Syntrophic Arginine, Threonine, and Lysine Fermentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 475 Facu...