the differential geometry of parametric primitives

... on the surface turns toward the positive direction of the surface normal by: The deviation (in the normal direction) from the tangent plane of the surface, given a differential displacement of ... D Sphere Given the spherical coordinates: we have the Jacobian matrix: the Hessian tensor: the first fundamental form: the normal: and the second fundamental form:...

Ngày tải lên: 27/03/2014, 11:53

... and let F n be the union of F n−1 with the loop-erasure of X n . Then F :=  ∞ n=1 F n has the distribution of the (wired) USF on G. The edges in F inherit the orientation from the loop-erased walks ... occurrence of S, then we should also contract the edges in K 1 and delete the edges in K 2 . Therefore, conditionally on Υ R and the occurrence of S, the path γ...

Ngày tải lên: 14/02/2014, 17:20

... in the sub- unit contact area of the tetramer, whereas the remaining two mismatches sur- round the contact area; this is expected to manifest in the kinetic and thermodynamic properties of the ... All the observed dynamic changes in enzyme properties under acclimation should be considered in the context of the relevance for the performance of metabolic networks, be...

Ngày tải lên: 19/02/2014, 02:20

... in the absence of a Du,as shown in Fig. 3 C. In the presence of a Du, the difference between the two strains was twofold over the entire DpH range tested. In the absence of a Du, the ATP synthesis ... including the f act that in the ATP synthases of mitochondria and of photosynthetic bacteria the position of these two amino acids in the primary sequence are i...

Ngày tải lên: 21/02/2014, 03:20

... without changing the magnitude of the heat shock response (cp3). The mutational analysis of the CRYGA and CRYGC HSEs suggests that the nucleotide sequences and configuration of nGAAn-like units ... with the human c-crystallin promoters. These results show that the configuration of nGAAn units in the promoter is important in determining which hHSF members are involved in...

Ngày tải lên: 07/03/2014, 00:20

... hydrogenase of a photosynthetic eukaryotic cell, repre- sents a novel type of Fe-hydrogenases. Parts of the deduced amino-acid sequence of the cDNA correspond to the polypeptide sequence of the tryptic ... [50,51]. Anaerobic treatment of maize seedlings alters the profile of total protein synthesis [52,53]. It is known that the induction of the anaerobic proteins...

Ngày tải lên: 08/03/2014, 22:20

... bounded then the null solution of Eq.(12) is uniformly stable. b. If the C 0 - semigoup operator (T (t)) t≥0 satisfies the hypothesis of theorem (2.3) then the solution of Eq.(12) in the case ... such that the solution of Eq.(4) in the case µ = 0 will be asymptotic equivalence to the solution of Eq.(4) in the case µ = 0(in the following we will give µ = 1) .The...

Ngày tải lên: 22/03/2014, 11:20

... glycine–HCl, pH 2.2, at the end of each binding cycle. To measure the binding properties of Erbicin and ERB- hRNase to the extracellular domain of ErbB2, ECD was immobilized onto the surface of sensor chip ... injecting 10 lLof10mm NaOH. A second set of binding curves was recorded for ERB-hRNase in the presence of soluble carboxymethyl-dextran at a final concentration of...

Ngày tải lên: 23/03/2014, 06:20

... line [25]. The differential distribution of these isoforms seems to be independent of cell type or the amount of protein expressed. To clarify the molecular basis for the con- trol of the differential ... to A B Fig. 1. The topology of Glut1 and alignment of the deduced amino acid sequences of Glut1 and Glut3. (A) The predicted structure of Glut1 [1]. The...

Ngày tải lên: 23/03/2014, 09:20

Ngày tải lên: 23/03/2014, 12:20