MEIS investigations of surface structure

Meis: New friends of Pax

The generation of neuronal diversity in the mammalian brain is a multistep process, beginning with the regional patterning of neural stem- and progenitor cell domains, the commitment of these cells toward a general neuronal fate, followed by the selection of a particular neuronal subtype and the differentiation of postmitotic neurons. Each of these steps as well as the transitions between them ...

Nmr Investigations of Protein Structure

crustal conductivity structure of a continental margin, from magnetotelluric investigations

the deep internal structure of the crust can be determined using appropriate seismic and electromagnetic methods. the natural source magnetotelluric (mt) method is the most suitable electromagnetic technique for probing into the deep crust. a long period magnetotelluric data set obtained in the southern chilean andes is investigated in this paper. dimensionality analysis shows that the data may...

Friction force microscopy investigations of potassium halide surfaces in ultrahigh vacuum: structure, friction and surface modification

Friction force microscopy measurements on the vacuum-cleaved (001) surfaces of KF, KCl and KBr have been carried out. All surfaces exhibit atomically flat terraces with monatomic steps aligned preferentially along low-index lattice directions. Stick-slip lateral forces with the lattice periodicity are observed on all surfaces. Tip-sample contact creates higher friction domains on the terraces o...

Surface-grafted Europium and Erbium Complexes of the 12-Tungstosilicate Heteropolyoxometalate: A Synthetic and Structural Investigations

The hydrothermal synthesis of two new inorganic-organic hybrid materials in which PDA (PDA = 1,10-phenanthroline-2,9-dicarboxylate) is connected to a well-defined Keggin-type polyoxometalate anion (POM) and a Ln(III) cation (POM = [SiW12O40]4−; Ln = Eu3+ (1), Er3+ (2)), are reported. These hybrids are characterized by elemental analyses, IR spectra and single-crystal X-ray diffraction. Single-c...