L-Cysteine is combined onto gold electrode to form a self-assembled monolayers modified electrode (L-Cys/Au SAMs) by taking advantage of strong sulfur-gold interaction. ATR-FTIR, SEM, cyclic voltammetry (CV) and impedance were used for the characterization of the film. It shows excellent stability upon voltametric scanning and a good voltametric response towards hydroquinone with the potential ...

The knowledge of the natural characteristics of the mosquito breeding habitats is important for implementing effective larval control program. For this, the association of six mosquito species (Culex pipiens, Cx. perexiguus, Cx. pusillus, Ochlerotatus caspius, Anopheles multicolor and Culiseta longiareolata) with the physical characteristics of their breeding habitats was examined in El-Muqatta...

We solve numerically the equations of motion for the collapse of a shell of baryonic matter, made of galaxies and substructure of 10M⊙−10M⊙, falling into the central regions of a cluster of galaxies taking account of dynamical friction. We calculate the evolution of the expansion parameter, a(t), of the perturbation using a coefficient of dynamical friction, η0, calculated for a perturbation in...

The prototype nova-like variable VY Sculptoris was observed by the IUE during four different optical brightness states of the system. The FUV flux level from the highest state to the lowest state declines by a factor of 28. We have carried out model accretion disk and white dwarf atmosphere fitting to the spectra. The corresponding accretion rates range from Ṁ = 8 × 10M⊙ yr −1 at the highest FU...

We investigate the properties of local HI-selected galaxies detected in blind radio surveys by using semi-analytic galaxy formation models in the hierarchical structure formation scenario. By drawing a detailed comparison between the properties of the HI-selected galaxies and the quasar absorption systems, we investigate a link between the local galaxy population and the quasar absorption syste...

In this paper, two new families of MDS quantum convolutional codes are constructed. The first one can be regarded as a generalization of [36, Theorem 6.5], in the sense that we do not assume that q ≡ 1 (mod 4). More specifically, we obtain two classes of MDS quantum convolutional codes with parameters: (i) [(q + 1, q − 4i + 3, 1; 2, 2i + 2)]q , where q ≥ 5 is an odd prime power and 2 ≤ i ≤ (q −...

In this Letter, we make an attempt to estimate the masses of black holes and their distributions in BL Lac objects. We find there is a bimodal population of black hole masses in BL Lacs: the first has a lower-mass peak centred at ∼ 7.0×10M⊙ composed of high frequency-peaked BL Lacs (HBLs) and the second is a higher-mass (> 10M⊙) population composed of low frequency-peaked BL Lacs (LBLs). The lo...

We present first results of our on-going BIMA Key Project: imaging the CO(1-0) emission from a sample of 10 LIRGs that are at various merging stages, with special emphasis on systems apparently in the early/intermediate stages of merging. We present here CO images with ∼ 5 resolution. An important result is the recognition of a plausible pre-starburst phase in some early LIRG mergers (e.g., Arp...

A series of novel N-substituted 2-methyl imidazole derivatives have been synthesized, and their in vitro antispasmodic activity was assessed on contractions of isolated guinea pig ileum, induced by acetylcholine (5× 10M to 1× 10M), and compared with the effect of atropine. All the prototypes were synthesized and confirmed by their FTIR, HNMR, MASS and elemental spectral data. Antispasmodic acti...