structure and interpretation of computer programs elsevier pdf

Ngày tải lên: 05/04/2014, 01:31

... model of the role of point of view in problem solving. SUMMARY We have reported here a three pronged approach to the study of problem solving action and report: I) the collected of data ... of data on problem solving and talk about problem solving, 2) development of a process model of these behaviors, and 3) use of coding techniques to extract traces of "critical phenomena" ... efforts on two types of problem solving phenomena: the changes in the problem solver's organization of the problem ("point of view"), and systematic multl-utterance structures used...

Ngày tải lên: 21/02/2014, 20:20

Ngày tải lên: 13/08/2014, 16:20

... A (1979) Involvement of histone H1 in the organization of the nucleosome and of the salt-dependent superstructures of chromatin. J Cell Biol 83, 403–427. Active chromatin and DNase I hypersensitive ... with binding of both MOF and Tip60 (equivalent to Esa1 in yeast NuA4) [124,130]. However, in human cells depletion of MOF, but not Tip60, results in reduced global levels of AcH4-K16 and defective ... acetylation and deacetyla- tion, and transient recruitment of remodellers and transcription factors. A cycle of transcription commences with the recruit- ment of transcription factors and co-factors...

Ngày tải lên: 14/02/2014, 18:20

... to T hr49) and TmAFP (blue, residues Asn29fiGly41). Letters de note the five residues of on e of the three sides of s bwAFP o r s ix residues of on e of two sides of T mAFP. T he strands that make ... Overlap of X-ray structure with 5 °C NMR structure using the main chain of residues Ser12 fiThr70 in t he structure a lignment. (B) O verlap of the X-ray structure with the 30 °C NMR structure ... [31,32,36] and their three- dimensional structures were determined [34,37–40]. In subsequent sections, we describe the structure and dynamics of each protein, and present a comparison of s bwAFP and TmAFPwitheachotherandwithproteinsthathavea similar...

Ngày tải lên: 19/02/2014, 16:20

... minidomain and the zinc-binding domain of the zinc finger protein Ynr046w [25] (Fig. 8). The fit of the heavy atoms (Ca, C, and N) from three b-strands and the a-helices of both the closed and the open ... TA, Gargaro AR & Feeney J (1999) Structure and dynamics in solution of the complex of Lactobacillus casei dihydrofolate reduc- NMR structure and function of the eRF1 C-domain A. B. Mantsyzov ... variation of pH in the range between 6.3 and 7.7, of ionic strength between 25 and 100 mm NaCl and of temperature between 278 and 313 K did not lead to any detectable change in the populations of the...

Ngày tải lên: 06/03/2014, 11:20

... helices A V and B V at the surface of domain V. Gly621 and Gly617 are in the area of contact with the 1095 and 2473 regions of 23S RNA. The two helices are facing the ribosome, and the four-stranded ... 666 and 670, within one b-strand of domain V, are also important for interdomain interac- tions. The N-terminal part of the strand interacts with the N-terminal part of helix C G in domain G, and ... occupancy of GDP in the nucleotide-binding site. Therefore, we present here the apo structure of S. aureus EF-G. Overall structure and comparison with previous EF-G structures All five domains of S....

Ngày tải lên: 06/03/2014, 22:21

... surface potential of AFP (left) and PAF (right) structures representing the orientation of the side chain lysine resi- dues. Lys9, Lys35 and Lys38 of PAF and Lys9, Lys32 and Arg35 of AFP are the ... of the adjacent Lys9 and Lys39. Similarly, Asp23 stabilizes the juxtaposed Lys15 and Lys17 side chains. The hydrophobic strand b4 is located between Cys43 and Asp46 and, as a central strand of ... [14]. The 3D molecular structure of PAF consists of five b-strands connected by three small loops involving b-turn motifs (loops 1, 2 and 4) and the large loop 3 (Fig. 9). The b-strands create two orthogonally...

Ngày tải lên: 29/03/2014, 23:20

... (rmsd of 1.6 A ˚ for 1192 Ca atoms of a tetramer and 1.44 for 306 Ca atoms of a monomer). This indicates that not only is the monomer structure conserved, but also the quaternary structure of the tetramer. ... values of r 2 and sum of squares ( · 10 )3 ) were as follows: citrate, competitive 0.92 and 518 versus noncompetitive 0.95 and 351; isocitrate, competitive 0.98 and 121 versus noncompetitive 0.99 and ... shorter than the isofunctional enzymes from other bacteria (Fig. 2). Expression of ArCMLE1 Comparison of the sequence of ArCMLE1 with that of the recently published crystal structure of the CMLE from...

Ngày tải lên: 30/03/2014, 10:20

Ngày tải lên: 20/06/2014, 16:20

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Ngày tải lên: 07/08/2014, 10:21

Ngày tải lên: 11/08/2014, 05:21

Ngày tải lên: 11/08/2014, 11:21

Ngày tải lên: 14/08/2014, 10:22

Ngày tải lên: 14/08/2014, 10:22

Ngày tải lên: 12/12/2013, 00:15

... for example, in three of the four quadrants of the i-v characteristic and can therefore act as sources of energy for specific combinations of voltages and currents. An example of this dual behavior ... only of parallel or only of series elements. The following examples and Check Your Understanding exercises illustrate some simple and slightly more advanced circuits that combine parallel and ... circuits and instruments. EXAMPLE 2.7 Application of Kirchhoff’s Laws Problem Apply both KVL and KCL to each of the two circuits depicted in Figure 2.27. Solution Known Quantities: Current and voltage...

Ngày tải lên: 19/01/2014, 19:20

Ngày tải lên: 13/02/2014, 12:20