muhammad baqir is probably the most important of a group of post safawid painters, who practiced a highly eclectic style. decorative floral compositions which were widly used for lacquer- work from the later safawid period onwards, also become a popular genre in 12th century h. persian painting. muhammad baqir also has produced floral design and composition. owing to the building programs conne...

according adhar bigdili, muhammad ali was son of abdal biq naqqashbashi (painter laureate)and grandson of aliquli biq jabadar, court painter of shah safi and shah abbas ii safawi. adhar bigdili credited muhammad ali with naqqashbashi of shah tahmasp ii safawi and nadir shah afshar. having learnt the art of painting from his father, muhamma ali in turn trained ali ashraf, who worked under patron...

The key principles behind current peer-to-peer research include fully distributing service functionality among all nodes participating in the system and routing individual requests based on a small amount of locally maintained state. The goals extend much further than just improving raw system performance: such systems must survive massive concurrent failures, denial of service attacks, etc. Th...

This paper introduces a new concept called controllable ring signature which is ring signature with additional properties as follow. (1) Anonymous identification: by an anonymous identification protocol, the real signer can anonymously prove his authorship of the ring signature to the verifier. And this proof is non-transferable. (2) Linkable signature: the real signer can generate an anonymous...

Multi-proxy signature allows an original signer authorizing a proxy group as his proxy agent and only the cooperation of all proxy signers in the group can create a proxy signature on behalf of the original signer. Recently, Jin and Wen defined a formal model of certificateless multi-proxy signature and proposed a concrete scheme. They claimed that their scheme is provably secure in their secur...

People in authority may want to submit some messages anonymously on a famous website, while the maintainers may want to limit the times each person can submit messages on the website so as to save the storage space. More over, when people abuse the system, the maintainers want to find ways to identify their identities. To realize such a system, what we need are some methods that can protect use...

Bending of purple membranes in dependence on the pH analyzed by AFM and single molecule force spectroscopy R.-P. Baumann, M. Schranz and N. Hampp, Phys. Chem. Chem. Phys., 2010 DOI: 10.1039/b919729j Bifunctional polyacrylamide based polymers for the specific binding of hexahistidine tagged proteins on gold surfaces Lucas B. Thompson, Nathan H. Mack and Ralph G. Nuzzo, Phys. Chem. Chem. Phys., 2...

We have expressed recombinant RNase P protein from Escherichia coli in high yield. A hexahistidine sequence at the amino terminus allowed protein purification in a single step. Mass spectrometry confirmed the molecular weight of the purified protein and indicated a purity of > 95%. Protein functionality was demonstrated by reconstitution of active holoenzyme.

Site-specific fluorescent labeling of proteins in vivo remains one of the most powerful techniques for imaging complex processes in live cells. Although fluorescent proteins in many colors are useful tools for tracking expression and localization of fusion proteins in cells, these relatively large tags (>220 aa) can perturb protein folding, trafficking and function. Much smaller genetically enc...