Prion-linked diseases, such as mad cow disease, scrapie, and the human genetic disorder Creutzfeldt-Jakob disease, are fatal neurodegenerative diseases correlated with changes in the secondary structure of neural prion protein. We expressed recombinant chicken prion protein in Escherichia coli and purified the protein to homogeneity. Circular dichroism spectra of the 26 kDa recombinant protein ...

in this research, the effect of tension wood formation in populus nigra on its anatomical characteristics was studied. vessel element and ray frequency (n/mm²), vessel diameter and ray dimensions were measured in both normal and tension wood. furthermore, the formation of gelatinous layer (g-layer) in the fibers of tension wood was studied. the results showed that the vessel proportion and diam...

the p63 gene, a member of the p53 gene family, is expressed into at least six protein isoforms.the transcription factor p63 is a homologue of the tumor suppressor p53. unlike p53, which is dispensable for normal development, p63 is critical for the development of stratified epithelial tissues such as epidermis, breast, and prostate. p63, , is transcribed from two different promoters giving rise...

This paper describes a new approach to representing space and time for practical reasoning. Unlike R, the new models can represent a bounded region of space using only finitely many cells, so they can be manipulated directly. Unlike Z n , they have useful notions of function continuity and region connectedness. Finally, the topology of space is allowed to depend on the situation being represent...

Beside simplices, n-cubes form an important class of simple polyhedra. Unlike hyperbolic Coxeter simplices, hyperbolic Coxeter n-cubes are not classified. In this work, we first show that there are no Coxeter n-cubes in H for n ≥ 10. Then, we show that the ideal ones exist only for n = 2 and 3, and provide a classification. The methods used are of combinatorial and algebraic nature, using prope...

The complex Ginibre ensemble is the distribution of an N×N non-Hermitian random matrix over C with i.i.d. Gaussian entries normalized to have mean zero and variance 1/N. Unlike unitary ensemble, for which eigenvectors are distributed according Haar measure on compact group U(N), independently eigenvalues, geometry eigenbases not particularly well understood. In this paper we systematically stud...