Decolorization of ranocid fast blue dye by bacterial consortium SV5

Synthetic dyes are not uniformly susceptible to degradation in conventional wastewater treatment processes. A number of biotechnological processes have been suggested as of potential interest in combating these pollutants in an ecofriendly manner. We determined the optimal parameters necessary for the bacterial consortium SV5 to decolorize Ranocid Fast Blue dye. The best results were obtained with a 0.1% (w/v) concentration of both starch and yeast extract supplemented in Bushnell Hass Medium under static conditions at a temperature of 37°C in less than 24 h with an initial dye concentration of 100 ppm.     

A new ruthenium-catalyzed cleavage of a carbon-carbon triple bond: efficient transformation of ethynyl alcohol into alkene and carbon monoxide

We report a new and efficient ruthenium-catalyzed reaction that transforms ethynyl alcohol into alkene and carbon monoxide. The most efficient catalysts are TpRu(PPh3)(CH3CN)2PF6 (10 mol %) and lithium triflate (20 mol %). The mechanism of this reaction was elucidated using an isotope-labeling experiment.     

An investigation into the surface topology and thickness profile of functional ceramic spinel manganate sputtered, evaporated and screen-printed layers

In this paper an atomic force microscopy and scanning electron microscopy analysis of the surface grain structure of negative temperature coefficient of resistance (NTCR) thermistor nickel manganate layers produced by radio frequency (RF) magnetron sputtering, electron-beam evaporation and screen-printing is presented. Thin sputtered and evaporated films exhibited a dense low porosity surface with evidence for grain alignment in a brick layer fashion, whereas thick screen-printed layers displayed perceptible surface porosity. The layer thicknesses and the thickness distributions were analysed by surface profileometry. The three different deposition techniques used for film production are compared and described in detail, including the paste production for screen-printing, deposition conditions and post-deposition annealing and sintering processes for all three techniques. The effects of the differences in the film production processes on the film microstructure are discussed. This is important, because differences in microstructure can result in variations in the resistivity versus temperature characteristics.     

No-Blueshift Condition in Wolf Mechanism

The idea that quasar redshifts are notcosmological is favored by some astronomers. This meansthat quasars cannot be assumed to be at very largedistances and that the scale of the universe is lessthan suggested by the big bang cosmology. Analternative mechanism is the Wolf effect, in which lightbeams interact in a way that can produce frequencyshifts. Under suitable choice of source parameters and assuming the existence of strong anisotropy inthe interstellar medium, blueshifts can beavoided.     

Cherenkov magnon excitations by a sub-relativistic magnetic monopole

A magnetic monopole moving faster than the magnon phase velocity in a given magnetic medium will create a magnon Cherenkov radiation in this medium. Typical velocities of interest are in the ～10^?4c range. In this range most non-induction detection mechanisms are inefficient.     

Hartree-fock wave functions and oscillator strengths for the helium isoelectronic sequence

Oscillator strengths for 1¹S?n¹P transitions for some members of the helium isoelectronic sequence have been calculated by utilizing the dipole length, velocity and acceleration forms of the transition matrix element with coupled H.F. wave functions. Good agreement has been obtained between the values of the oscillator strengths. The quantities $\text{(?}{}_{\mathrm{A}}\text{??}{}_{\mathrm{L}}\text{)}$ and $\text{(?}{}_{\mathrm{A}}\text{??}{}_{\mathrm{V}}\text{)}$ decrease slowly with nuclear charge Z, whereas $\text{(?}{}_{\mathrm{L}}\text{-?}{}_{\mathrm{V}}\text{)}$ first increase to a maximum value and then decreases slowly.     

Bound state solutions of the two-electron Dirac-Coulomb equation

We show that the Dirac-Coulomb Hamiltonian hasnormalizable eigenfunctions corresponding to bound states.