The importance of cyclic di-GMP (c-di-GMP) and its control of biofilm matrix assembly and production has been a focal point of researchers in recent history. In this issue, Cooley et al. (Cooley RB, Smith TJ, Leung W, Tierney V, Borlee BR, O'Toole GA, Sondermann H, J Bacteriol 198:66-77, http://dx.doi.org/10.1128/JB.00369-15) demonstrate that two c-di-GMP controlled features of Pseudomonas aeru...

The crystal structure of trilithium gallium bis-(orthoborate), Li3Ga(BO3)2, is isotypic with Li3Al(BO3)2 in a triclinic cell in space-group type P-1. The three Li and the unique Ga atom are coordinated by four O atoms each in tetra-hedra, and the two B atoms are coordinated by three O atoms in orthoborate triangles. Chains with composition [Ga2(BO3)4]6- extend along the a axis. The Li atoms int...

The source of spin-wave resonance (SWR) in thin films of the ferromagnetic semiconductor (Ga,Mn)As is still under debate: does SWR stem from the surface anisotropy (in which case the surface inhomogeneity (SI) model would apply), or does it originate in the bulk inhomogeneity of the magnetic structure of the sample (and thus requires the use of the volume inhomogeneity (VI) model)? This paper o...

The use of methanol as a fuel and chemical feedstock could become very important in the development of a more sustainable society if methanol could be efficiently obtained from the direct reduction of CO2 using solar-generated hydrogen. If hydrogen production is to be decentralized, small-scale CO2 reduction devices are required that operate at low pressures. Here, we report the discovery of a ...

BACKGROUND Glucose concentrations decrease in blood specimens during transport/processing, primarily because of continuing metabolism (glycolysis) by erythrocytes. Several means to reduce the loss of glucose in blood specimens have been developed, but all have major drawbacks. Glyceraldehyde, which has antiglycolytic activity, was assessed for potential in preserving glucose in blood specimens....

The reaction of CsN3 with GaS and S at elevated temperatures results in Cs2Ga2S5. Its crystal structure was determined from single-crystal X-ray diffraction data. The colorless solid crystallizes in space group C2/c (no. 15) with V = 1073.3(4) Å(3) and Z = 4. Cs2Ga2S5 is the first compound that features one-dimensional chains ∞(1)([Ga2S3(S2)(2-)] of edge- and corner-sharing GaS4 tetrahedra. The...

Abstract We report the observation of the spin valve effect in (Ga,Mn)As/p-GaAs/(Ga,Mn)As trilayer devices. Magnetoresistance measurements carried out in the current in plane geometry reveal positive magnetoresistance peaks when the two ferromagnetic layers are magnetized orthogonal to each other. Measurements carried out for different post-growth annealing conditions and spacer layer thickness...

The "Swedish slow motion theory" [Nilsson and Kowalewski, J. Magn. Reson. 146, 345 (2000)] applied so far to Nuclear Magnetic Relaxation Dispersion (NMRD) profiles for solutions of transition metal ion complexes has been extended to ESR spectral analysis, including in addition g-tensor anisotropy effects. The extended theory has been applied to interpret in a consistent way (within one set of p...

Let k be an algebrai ally losed eld of hara teristi p > 0, andG be a Barsotti-Tate over k. We denote by S the algebrai lo al moduli in hara teristi p of G, by G the universal deformation of G over S, and by U ⊂ S the ordinary lo us of G. The étale part of G over U gives rise to a monodromy representation ρG of the fundamental group of U on the Tate module of G. Motivated by a famous theorem of ...

Using an asymmetric associative network with synchronous updating, it is possible to recall a sequence of patterns. To obtain a stable sequence generation with a large storage capacity, we introduce a threshold that eliminates the contribution of weakly correlated patterns. For this system we find a set of evolution equations for the overlaps of the states with the patterns to be recognized. We...