An efficient and facile method for the synthesis of substituted imidazoles (10a-10g) has been reported by reacting aldehydes (1–7), benzil (8) ammonium acetate [9] in presence reuseable solid acid catalyst viz. Rice Husk Ash.SO3H (RHA.SO3H) at room temperature. The homogeneity compounds was confirmed melting point thin layer chromatography. All synthesized were characterized 1H NMR FTIR spectra...

This paper describes new internet-based face recognition system to be used in portable devices. In contrast to existing systems, which run computationally intensive facerecognition tasks at a mobile terminal shortening its battery lifetime, the proposed system uses mobile device only for image capturing and user-interface. All complex image processing tasks are performed by a remote high-powere...

In the present study, we newly synthesized three types of novel fullerene derivatives: pyridinium-type derivatives trans-3a and 4a-5b, piperidinium-type derivative 9, proline-type 10a-12. Among assessed compounds, 5a, 10e, 10f, 10i, 11a-d, 12 were found to inhibit both HIV reverse transcriptase protease (HIV-PR), with IC50 values in low micromolar range being observed. Regarding HIV-PR inhibiti...

Although closely related at the molecular level, the capsular polysaccharide (CPS) of serotype 10F Streptococcus pneumoniae and coaggregation receptor polysaccharide (RPS) of Streptococcus oralis C104 have distinct ecological roles. CPS prevents phagocytosis of pathogenic S. pneumoniae, whereas RPS of commensal S. oralis functions as a receptor for lectin-like adhesins on other members of the d...

A large number of experiments now appear to confirm the existence of the exotic, strangeness +1 θ baryon. The I = 3/2 exotic Ξ3/2 signal observed by NA49 remains to be confirmed (it is not seen by HERA-B, and its compatibility with earlier high statistics Ξ production experiments has also been questioned). Recently, H1 reported evidence for an anti-charmed exotic, though this state was not seen...

In the last 5000 years, global mean sea level has been dominated by the redistribution of water masses over the globe. In the last 300 years, sea level has been oscillation close to the present with peak rates in the period 1890–1930. Between 1930 and 1950, sea fell. The late 20th century lack any sign of acceleration. Satellite altimetry indicates virtually no changes in the last decade. There...

Let Fq be the multiplicative group of a finite field, Fq, of cardinality q, with q odd; and let P(Fq) denote its power set. We define the arithmetical function D : P � Fq � → Z via D(S) = #I � x + x−1, S � −#I � x− x−1, S � , where for S ⊆ Fq , I � x± x−1, S � = � x± x−1 : x ∈ S � . Furthermore, let tq = � k − 1, if q = 4k + 1 k, if q = 4k + 3, and let F (k, l) be the coefficient of xl in (x−1 ...

Human posterior parietal cortex encodes the movement goal in a pro-/anti-reach task 1 2 Hanna Gertz and Katja Fiehler 3 4 H.G. and K.F. conception and design of research; H.G. performed experiments and analyzed data; H.G. 5 and K.F. interpreted results of the experiment; H.G. prepared figures and drafted manuscript; K.F. edited 6 and revised manuscript; H.G. and K.F. approved final version of m...