show that the trace of a tensor is invariant

... a cylinder, use the formula V = ␲r2h h r S URFACE A REA The surface area of an object measures the combined area of each of its faces The total surface area of a rectangular solid is double the ... (the median), and/or the average of all the values (the mean) M EAN AND M EDIAN To find the average, or the mean, of a set of numbers, add all the numbers together and divide by the quantity of ... Diagonals bisect each other S PECIAL T YPES OF PARALLELOGRAMS There are three types of special parallelograms: ■ A rectangle is a parallelogram that has four right angles 193 – THE GRE QUANTITATIVE...

Ngày tải lên: 18/06/2014, 17:20

... protein chain is shown Colors are the same as in Fig 1A indicating the two domains (B) Electrostatic surface potential of the active site of PhyK as calculated with APBS [38] is displayed in a range ... smaller than for AppA, showing that binding is favored by the preformed site By contrast, catalysis by AppA is faster, as reflected in the values for kcat ⁄ Km, indicating that a conformationally flexible ... composed of two domains: an a ⁄ b domain and an a domain (Fig 1A) The known activesite motif is found in a cavity between the two domains The a ⁄ b domain consists of a central six-stranded b sheet of...

Ngày tải lên: 16/02/2014, 09:20

... deleted (DISP ⁄ DQCR9) This strain, as expected, was respiratory-deficient because of the absence of the catalytic subunit ISP (Table 1) Figure 3A shows that a band of ΔQCR9 ΔISP ΔBCS1 approximately ... amounts in both yeast strains Therefore, the reason for the disappearance of the bc1 dimer in the yeast strain in which Qcr10p is missing remains unknown On the basis of all the above reported results, ... Standard procedures were used for the preparation and ligation of DNA fragments, for the transformation of Escherichia coli and for the isolation of plasmid DNA from bacterial cells [51] Other...

Ngày tải lên: 18/02/2014, 08:20

... Vaaje-Kolstad et al containing 100 lm of (GlcNAc)14 was analysed at the start, in the middle and at the end of each series of samples The resulting average values of the standards (displaying standard ... Lactococcus lactis ssp lactis IL1403 is a derivative of the strain IL594 that was isolated from a cheese starter culture [47] For the isolation of genomic DNA and the creation of stock cultures, the bacterium ... instructions, containing ends compatible with the expression vector (forward primer, 5Â-GGTATTGAGGGTCGCCATGGTTATGTTC AATCACCA-3Â; reverse primer, 5Â-AGAGGAGAGTTAG AGCCTTACAAGAAGGGTCCAAAGA-3Â) The PCR product...

Ngày tải lên: 18/02/2014, 08:20

... determined numerical values of the ratio a/ b, and is the theoretical numerical value of ratio a/ b for a mixture of aromatic amino acids (Tyr and Trp), containing the same molar ratio as the protein ... script a is the peak–peak distance between the maximum at %287 nm and the minimum at %283 nm, and the script b is the peak–peak distance between the maximum at %295 nm and the minimum at %290 ... good and the programs did not mark any as poor or inappropriate Another structural analysis, obtained by the VERIFY3D program [61], gave an average value of 0.21, which is greater than zero, the...

Ngày tải lên: 21/02/2014, 00:20

... GAG AGG AAC TGA ACA GAA CAT TG 3¢ 5¢ CAA CTG CGT ATT AGT GAA GAA TG 3¢ 5¢ AAT CAA ATT TTA TTA TAA GAC C 3¢ 5¢ AAT AGC TAA TTA GAG ACC AT 3¢ using the 2400 (or 480) thermal cycler To estimate the ... CAA CAA TAT GC 3¢ 5¢ GTC CCA ACT TGA AAT CCT GAT C 3¢ 5¢ CAA GTT TAT AGT CTA CAC GTT GTA C 3¢ 5¢ CTT AGC ATC TTC CAT GGC TTG ATC 3¢ 5¢ ATA CAC ACA AAC TCA CAA GG 3¢ 5¢ CAA CAT ATT TTA AAT AAA ATT ... TTG AAA AGG AG 3¢ 5¢ CCA GTG AAT ATT CAG GAC TGA T 3¢ 5¢ AGG CTC TAG CAT GAT TTG ATG T 3¢ 5¢ GCA TTT TTA TTT TGA ATG TAA A 3¢ 5¢ TAG TTC AAA TGC ACA TCT TAT 3¢ 5¢ GGC AGA GAA TAC GTT TAT ACT AA...

Ngày tải lên: 22/02/2014, 04:20

... interactions to those described here and is present in the S agalactiae PPase, kinase and adenylosuccinate synthase, but not in S agalactiae CovR ⁄ CsrR The motif is located at the surface of the ... to binding of a third metal ion The implications of the M3 binding and flap subdomain conformations to the catalytic mechanism are discussed below The role of the third metal in catalysis In MtSTP ... Superimposition of monomers A and C of SaSTP, and MtSTP monomer A [9] Monomer C of SaSTP is magenta as in Fig 2A, monomer A is blue and MtSTP is gray Metal ions and nucleophilic water molecules are shown as...

Ngày tải lên: 07/03/2014, 09:20

... solution The latter has the additional attributes of being available anywhere, at anytime and on any device If it was only a simple as a mouse-trap The complication is that for most customers they already ... when assessing cloud value AMS is the paradigm where a predefined level of demand is managed internally and the remainder augmented with cloud services The apothegm is ‘Own the base and rent the ... customers have this tumour, and they should actively avoid growing it In another ebook, I explain a new business paradigm, Augmented Managed Services (AMS) This is yet another approach businesses...

Ngày tải lên: 09/03/2014, 02:20

... indicates clearly that the two compounds are incorporated into tubulin at the same site Another biochemical characteristic of tubulin is its ability to act as substrate of the detyrosinating ... incubation was the same in both cases (data not shown), indicating that replacement of tyrosine by 3-nitrotyrosine at the C-terminus of a- tubulin is not relevant to the association of carboxypeptidase ... (data not shown) These results, cumulatively, indicate that nitrotyrosine is incorporated as such into the C-terminus of the a- tubulin subunit, by the same mechanism as tyrosine Capability of...

Ngày tải lên: 17/03/2014, 10:20

... repeating unit of the polysaccharide thus contains a terminal NeuAc, and the above mentioned residues A comparison to the methylation analysis data on the O-polysaccharide, indicates that the ... in the upper phase and the pellet showed identical patterns and it was therefore concluded that the same polysaccharide was present A hydrolysate of the upper phase, analyzed as alditol acetates, ... lipopolysaccharide gave a pellet and an upper phase, the latter containing most of the material SDS/PAGE of the two materials Fig SDS/PAGE of the upper phase (1) and the pellet (2) obtained on ultracentrifugation...

Ngày tải lên: 24/03/2014, 04:21

... the inactivation and fragmentation of calpastatin are known to be produced by active calpain [32], these observations further indicate that calpain is activated in both tissues, although at a ... degradation of NOS and HSP90 by calpain M Averna et al Table Levels of native and 15 kDa calpastatin species in brain and aorta of NMS and HMS rats treated with HSD for weeks The data reported are ... significant degradation of HSP90, which was only partially B Fig Levels of calpain isoforms and calpain substrates in the aorta of NMS and HMS rats treated with HSD Aliquots (100 lg protein) of brain...

Ngày tải lên: 30/03/2014, 04:20

... AAAGGATCCTGCAAGCCTGTGAAGTGG AAAGAATTCATTAAGGTCTACGGAAAGTGCAGG b AAAGGATCCATGAAGTGGTGTGCGCTGAG AAAGAATTCTTACAGGTGAGGTCAGAAGCTGATT AAAGGATCCAATTTTGCTGTAGCAGTGGTGAA AAAGAATTCTTAACCTGAAAGCGCCTGTGTAG AAAGGATCCCCCAACAACAAAGAGGGATACT ... c AAAGAATTCTTACTTGCCCGCTATGTAGACAAA c AAAGAATTCTTAATCCTCACAATTATCGCTCTTATT c AAAGAATTCTTACCCTACACTGTTAACACT c AAAGAATTCTTAAACACTCCACTCATCACA d GTGTATCAGCAGAGAACACCGAAGACTGCATCGCC GGCGATGCAGTCTTCGGTGTTCTCTGCTGATACAC ... AAAGGATCCCCCAACAACAAAGAGGGATACT AAAGAATTCTTAGGTGCTGCTGTTGACGTAATAT AAAGGATCCAAGGAAGCTTGCGTCCACAAGATA AAAGAATTCTTAGGCAGCCCTACCTCTGAGATTTT c AAAGAATTCTTAGGTGGTCTCTGCTGATACACACTC c AAAGAATTCTTAATGCAGTCTTCGGTGGTCTCT c AAAGAATTCTTACTTGCCCGCTATGTAGACAAA...

Ngày tải lên: 30/03/2014, 11:20

... media is to be installed – The amount of data and the speed at which it must be transmitted – The cost of the media and installation 17 Local Area Network (LAN) Local Area Network (LAN) An individual ... 46 The Communication Process Protocol Data Unit (PDU) - The form that a piece of data takes at any layer PDUs are named according to the protocols of the TCP/IP suite Data - Application layer ... Data App TCP Header Header Frame Trailer Data Encapsulation – Process of adding a header to the data or any previous set of headers Decapsulation – Process of removing a header 27 Example: Protocol...

Ngày tải lên: 01/04/2014, 12:20

... pairs at the stage of nested PCR gave exactly the same result The V-type S RNA was detected during all ten passages while the REC-type totally disappeared after the 5th passage (data not shown) These ... Molecular Systems) was used To monitor the presence of TULV S RNA on passages, RT-PCR was performed with primers VF738 (5'GCCTGAAAAGATTGAGGAGTTCC3'; nt 738–760) and VR855 (5'TTCACGTCCTAAAAGGTAAGCATCA3'; ... design of the study, carried out the experiments and helped to draft the manuscript AlexP participated in the design of the study and drafted the manuscript Both authors read and approved the final...

Ngày tải lên: 18/06/2014, 22:20

... relative to the native strain, during the second half of the logarithmic phase (Figure 5) The batch experiment has revealed that 1, 3-PD, acetate and ethanol are growth-associated in both the native ... Bio-Rad, USA) The mobile phase consisted of acetonitrile and water in a ratio of 35:65 in mM H2SO4, at 0.4 mL/min The temperature of column and RID was maintained at 30°C and 50°C respectively Samples ... (Tobajas et al 2009) Fermentation was carried out at 37°C and 250 rpm, in an anaerobic condition The pH was maintained at 5.5 by the addition of 1.5 M NaOH or 1.5 M H3PO4 (El-Ziney et al 1998) The...

Ngày tải lên: 20/06/2014, 23:20

Ngày tải lên: 07/08/2014, 03:22

... in their respective coefficients of x The list of the characteristic polynomials of the vertex deleted subgraphs of the two graphs is shown in Table This is hardly an indication that counter-examples ... subgraphs are not essential to reconstruct the elementary invariants of a graph For example, the number of edges of a graph is determined from that of the subgraphs as |E(G)| = i |E(Gi )| (n−2) The ... determined by the isomorphism classes of its vertex-deleted subgraphs is the most general case of problems of this type There are counter-examples to the question of whether a graph invariant I(G) is reconstructible...

Ngày tải lên: 07/08/2014, 06:20