Báo cáo khoa học: "On the dosimetric impact of inhomogeneity management in the Acuros XB algorithm for breast treatment" pot

... visible in the common prac- tice of inspecting DVH. The same effect is the difference of dose calculated in the muscle tissue of the breast, and again not visible in common DVH analysis being the muscle ... and, for the subject o f the study, the main point is focussed to the capability, for Acuros XB, to manage elemental compositions of some predefin...

Ngày tải lên: 09/08/2014, 09:21

... to the wild- type) and to a reduction of thermal stability. It is likely that the introduction of the positive charge of the lysine amino group attracts the carboxyl of Glu135 and brings the ... results only in a subtle change: the shortening of the bridge length by one methylene group. The abolition of the activity demonstrates the importance of an exact...

Ngày tải lên: 23/03/2014, 04:21

... important in the literature and have roles assigned [12–18,20]: *, CTP-binding residue of the P-loop; (*), CTP-binding residue; ^, Neu5Ac-binding residue; #, Neu5Ac-binding residue forming part of the ... al. [14] in the related enzyme, L-CKS, because mutation would interfere with both Neu5Ac binding as well as playing a role in the re-orientation of Mg 2+ binding during...

Ngày tải lên: 22/03/2014, 21:21

... hydration of the protein domain is the driving force of protein stabiliza- tion or folding [3,4]. Furthermore, the effect of osmolytes on the functional activity of an enzyme has also been investigated ... DG D ° values in the presence of these osmolytes are given in Table 1. How- ever, DG D ° values of RNase-A in the presence of alanine, serine, lysine, b-alan...

Ngày tải lên: 07/03/2014, 00:20

... analysis of initial rate data in the absence of inhibitors, we used the specific equation in Scheme 1. The effect of two ligands on the activity of the wild-type DmAChE was evaluated by the equation in ... 2B). In the case of the Glu mutation, the b value is linked to the k 2 value and thus both cannot be estimated independently. However, if b is set to 1...

Ngày tải lên: 07/03/2014, 05:20

... conditions were: 1 cycle of 94 °Cfor3min,50 °Cfor 30 s and 72 °C for 1 min; 30 cycles of 94 °C for 30 s, 54 °C for 30 s, and 72 °C for 1 min; then a final extension at 72 °C for 10 min before storage at ... single cysteine. This residue, which appears to have a role in determining the redox potential of the enzyme [33], can be methionine, leucine or phenylalanine. Therefo...

Ngày tải lên: 07/03/2014, 15:20

... with in the treatment of VP-eUipsis, perhaps at the cost of some degree of the- oretical inelegance. However, this aspect was crucial for handling the gapping data, since the infelicity of gapping ... Reference In this section we characterize the forms being ad- dressed in terms of two features: (1) whether the form leaves behind an empty constituent in t...

Ngày tải lên: 08/03/2014, 07:20

... l M concentration of the indicated peptide by application to the side of the vesicle-containing drop and was followed microscopically for the period indicated. For CB, A–D were obtained at time (min) 0, ... was added before removal of the chloroform in an argon stream. Instead of our previous use of phosphatidyl- choline/PA (7 : 3) [27,33–42], PtdEtn used in these...

Ngày tải lên: 08/03/2014, 08:20

... accompanied by an increase in the rate of synthesis of Ino, without any need to modify the kinetic parameters or activities of the enzymes involved in the pathway from ATP to Ino. Being aware of the simplifications ... concentration in a metabolic path- way as a function of the kinetic constants of the enzymes involved in that pathway [3]. Application of thi...

Ngày tải lên: 17/03/2014, 10:20

... linguistic formalisms like those of the Government and Binding theory and the Lexical Functional Grammar theory. Our interest lies mainly in their role in the domain in terms of the ease in ... input to synthesis, may contain a mixture of the information. Some of this information are pertinent, namely the information associated to the level of transfe...

Ngày tải lên: 18/03/2014, 02:20