báo cáo khoa học: "Determination of pore size distribution at the cell-hydrogel interface" ppt

... which the cells can modify the material matrix in terms of pore size distribution. Our results show significant modifications in the pat- tern of pore size distribution, mostly observed in case of cells ... as the criteria for defining the sizes of these cavities. In addition, the frequency in the determination o f the same values of rprs was analyzed, wit...

Ngày tải lên: 11/08/2014, 00:23

... as the itinerary of the sugar ring conformations along the catalytic pathway [24,25,29,30] or the inversion of the roles of the catalytic glutamates [34]. Substrate derivatives with a fluorine atom ... P (2004) Features of the ESI mechanism that affects the observation of multiply charged noncovalent protein complexes and the determination of the association con...

Ngày tải lên: 07/03/2014, 17:20

... synthesize the second strand DNA due to the unpaired 3¢-end of the primer, until the ÔGGÕ bases in the hairpin stem are freed by elevating the reaction temperature and paired with the ÔCCÕ bases at the ... on the process of primer 2 annealing to the DNA template. Analysis of secondary structure formation by thermal denaturation, renaturation and primer extension To...

Ngày tải lên: 23/03/2014, 13:20

... complete the titrations. However, for the FAD/NADPH domain of NR1, considerable aggregation and precipitation of the protein occurred within 1 h of initiating the titrations, and this precipitation ... nm, respectively). Results are the mean and standard deviation of triplicate assays. For the determination of apparent k cat values, experiments were performed at a satu...

Ngày tải lên: 23/03/2014, 21:20

... in the forms of tags which are at- tached to words. The tags indicate the inflectional and derivational properties of the word and the word class membership, the tags attached during the ... than 2% then 80-88% of words becomes syntactically unambiguous. The error rate of parser is 1-4% depending on the ambiguity rate of input. The main goal of this wor...

Ngày tải lên: 24/03/2014, 03:21

... gel filtration and processed further to the final carbo- hydrate derivatives 5–7 by enzymatic elongation of the carbohydrate chain using glycosyltransferases. The presence of alkaline phosphatase ... convenient comparison, the conformations were positioned in space in the same way by superimposing the ring atoms of mannose units of the pentasaccharide core. Access to the...

Ngày tải lên: 30/03/2014, 13:20

... Possible roles of the cation include the activation of water for the hydration reaction and ⁄ or the stabilization of the anion transition state. In the latter case, if the sub- strate coordination to the ... indicates that the divalent metal ion is hexa-coordinated in the enzyme. The nature of the metal ion affected only the k cat and not the K m values in...

Ngày tải lên: 30/03/2014, 15:20

... edible tissues of broiler up to the concentration of 0.01 ㎎ /kg at 5 days after treatment. The withdrawal time of roxithromycin using the statistical method for the calcu- lation of withdrawal ... recently, the advent of mass spectrometer combined with HPLC offers a significant advantage for the absolute confirmation and quantitation of chemicals. The high-per- fo...

Ngày tải lên: 07/08/2014, 17:22

... over-estimated vol- ume. Matching index calculation The matching index (MI) of any two 3D volumes A and B is defined as the ratio of the intersection of A with B to the union of A and B, that is, As can ... observation that tumor delineation on the MIP with subsequent visual verification of contours over all individual phases of the 4D CT yielded the best estimate o...

Ngày tải lên: 09/08/2014, 09:22

... com- posed of similarly sized primary subunits. The size of the subunits of the aggregates of NM-200 is relatively constant: they measure approximately 20 nm in dia- meter. The size of the subunits of ... dimensions in the size range of 1-100 nm can be shown. From the 3D reconstructions, the surface area and the volume of the examined NM could be esti...

Ngày tải lên: 11/08/2014, 00:23