structure and interpretation of computer programs book

structure and interpretation of computer programs

Ngày tải lên : 05/04/2014, 01:31

... perfection of part and adequacy of collection In this book the use of ``program'' is focused on the creation, execution, and study of programs written in a dialect of Lisp for execution on a digital computer ... matter of this book involves us with three foci of phenomena: the human mind, collections of computer programs, and the computer Every computer program is a model, hatched in the mind, of a real ... Poorly-Understood and Sloppily-Formulated Ideas'' ``The Structure and Interpretation of Computer Programs' ' is the entry-level subject in computer science at the Massachusetts Institute of Technology...

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Báo cáo y học: "A comparative approach for the investigation of biological information processing: An examination of the structure and function of computer hard drives and DNA" doc

Ngày tải lên : 13/08/2014, 16:20

... examination of the structure and function of computer hard drives and DNA Theoretical Biology and Medical Modelling 2010 7:3 Submit your next manuscript to BioMed Central and take full advantage of: ... description of the informational and computational elements of a cell and the architecture of a computer system [1,2] Since the cell represents a level of complexity that is orders of magnitude ... mappings in terms of organization and structure A central common feature of both cellular and silicon systems is the existence of a dedicated and distinct centralized information storage and processing...

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Tài liệu Structure and Administration of the Manual docx

Ngày tải lên : 12/12/2013, 00:15

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Tài liệu Báo cáo khoa học: Structure and function of active chromatin and DNase I hypersensitive sites pdf

Ngày tải lên : 14/02/2014, 18:20

... implications of the cycle of histone acetylation and deacetylation that accompanies cycles of transcription, and highlight the special signiﬁcance of histone H4 lysine 16 acetylation Active chromatin and ... functions of PARP-1 are activated in the presence of NAD+ it mediates the PARylation of both histones and PARP-1 itself, and thereby promotes decondensation of higher order chromatin structure ... 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...

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Tài liệu Báo cáo khoa học: Interaction between very-KIND Ras guanine exchange factor and microtubule-associated protein 2, and its role in dendrite growth – structure and function of the second kinase noncatalytic C-lobe domain docx

Ngày tải lên : 14/02/2014, 19:20

... domains of Spir-2 and PTPN13 were generated by RT-PCR and inserted into pEGFP-C1 and pGEX-4T-2 The N- and C-terminal regions of the v-KIND KIND2 and the MAP2 CD were generated by PCR and cloned ... series of GST-fused deletions of the CD2-1 region (Fig 3E) and examined the interactions between bacterially expressed proteins of these subregions (Fig S1C) and 1654 Fig Of all members of the ... in dendrites of cultured hippocampal neurons Fig S4 Domain structure of MAP2 and the alignment of v-KIND-binding core (BD) region of MAP2 CD2 domain (702–744 aa) in human, mouse and Gallus This...

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Tài liệu Body Size: The Structure and Function of Aquatic Ecosystems pptx

Ngày tải lên : 17/02/2014, 19:20

... patterns and processes at different levels of biological organization: from the life histories of individuals, to the structure and dynamics of populations and communities, to the fluxes and pools of ... measuring and understanding the roles of different kinds of organisms in the flux and storage of elements in ecosystems The total biomass per unit area, W, is simply the sum of the body mass of all ... abundances and turnover of populations, the allocation of resources among coexisting species, and the fluxes and pools of energy and materials in ecosystems These exchanges are direct consequences of...

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Tài liệu Báo cáo khoa học: Structure and function of plant aspartic proteinases pptx

Ngày tải lên : 19/02/2014, 12:20

... representation of the structure of the PSI domain of barley prophytepsin [25] (N-terminal domain, blue; C-terminal domain, red) (C) Model structure of the PSI domain of cardosin A based on the crystal structure ... by the prosegment, but also by the 13 residues of the N-terminal of the mature enzyme and by the ÔﬂapÕ The anchorage of the prosegment and of part of the N-terminus in the active site cleft is ... isoforms by the excision of the prosegment and of most of the PSI [21] Conversely to what has been found in vivo [31], heavy and light chains of the processed forms of recombinant cyprosin are...

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Tài liệu Báo cáo khoa học: a-Conotoxins as tools for the elucidation of structure and function of neuronal nicotinic acetylcholine receptor subtypes doc

Ngày tải lên : 19/02/2014, 12:20

... analysis of the DNA of different Conus species has already revealed a large number of a-conotoxin sequences [45] and the identiﬁcation of further speciﬁc nAChR ligands is likely The advantage of a ... consisting of the extracellular ligand-binding domain of the a6 subunit and the transmembrane and intracellular domains of the a3 subunit was used in this study PIA selectively blocks rat and human ... determination of the subunit composition of the nAChRs involved has been hindered by the lack of selective ligands and imperfect correlations between the characteristics of native and heterologously...

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Tài liệu Báo cáo khoa học: Cold survival in freeze-intolerant insects The structure and function of b-helical antifreeze proteins pdf

Ngày tải lên : 19/02/2014, 16:20

... the structure and PDB code shown below each panel (A) Overlap of isoform 337 with the structure of the longer isoform CfAFP-501 using the main chain of residues Thr23ﬁAsn90 in isoform 337 and ... other and with proteins that have a similar fold Structure of sbwAFP and TmAFP The structure of sbwAFP has been determined by X-ray ˚ crystallography to 2.5 A and by NMR at both 30 °C and °C ... method and PDB code shown below each panel (A) Overlap of X-ray structure with °C NMR structure using the main chain of residues Ser12ﬁThr70 in the structure alignment (B) Overlap of the X-ray structure...

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Tài liệu Báo cáo khoa học: Complete subunit sequences, structure and evolution of the 6 · 6-mer hemocyanin from the common house centipede, Scutigera coleoptrata pptx

Ngày tải lên : 20/02/2014, 11:20

... hemocyanin of which the complete molecular structure is known This allows us to compare structure, and intra- and intermolecular evolution of hemocyanins from Myriapoda, Crustacea and Chelicerata ... composed of 12 HcA, 12 HcB, six HcC and six HcD polypeptides Thus the basic building block of the hemocyanin, the hexamer, most likely contains two copies of each HcA and HcB, and single copies of ... data analyses and phylogenetic studies The tools provided with Genetics Computer Group (GCG) Software Package 10 and by the ExPASy Molecular Biology Server of the Swiss Institute of Bioinformatics...

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Tài liệu Báo cáo Y học: A Raman optical activity study of rheomorphism in caseins, synucleins and tau New insight into the structure and behaviour of natively unfolded proteins pot

Ngày tải lên : 21/02/2014, 15:20

... longer-chain (and nonglobular) versions of the structure of the Bowman±Birk inhibitor in Fig The X-ray crystal structure pi2 reveals that the /,w angles of most of the residues of the Bowman±Birk ... form of b strand [18] The positive bands at » 1675 cm)1 in the amide I region of the ROA spectra of b- and j-casein, which originate mainly in the peptide C O stretch, are characteristic of disordered ... attribute the lack of agreement between our present results and the earlier interpretations of the UVCD spectra of b- and j-caseins (see above) to the fact that the basis sets of protein UVCD spectra...

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Tài liệu Báo cáo khoa học: "The Structure and Process of Talking About Doing" pdf

Ngày tải lên : 21/02/2014, 20:20

... study of problem solving action and report: I) the collected of data on problem solving and talk about problem solving, 2) development of a process model of these behaviors, and 3) use of coding ... problem solving from a record of the problem solving report and a record of moves made Then, we use this extracted trace to evaluate our model of the role of point of view in problem solving SUMMARY ... organization of the problem ("point of view"), and systematic multl-utterance structures used to express the forms of inference used to solve the problem ("Justificatlon argument structures")...

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Tài liệu Concepts, Techniques, and Models of Computer Programming pot

Ngày tải lên : 22/02/2014, 06:20

... essential for deﬁning precise speciﬁcations of what programs Like Structure and Interpretation of Computer Programs, by Abelson, Sussman, & Sussman [1, 2], our book mostly uses the computation-based ... inside computer systems Modern computers are highly complex systems consisting of hardware, operating system, middleware, and application layers, each of which is based on the work of thousands of ... settings of their alarm clock or cellular phone) and specialists (computer programmers, the audience of this book) This book focuses on the construction of software systems In that setting, programming...

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Tài liệu Báo cáo Y học: The solution structure and activation of visual arrestin studied by small-angle X-ray scattering pot

Ngày tải lên : 22/02/2014, 07:20

... and fD are the mass fractions of monomer and dimer, respectively, and RgM and RgD are the radii of gyration for the monomer and dimer, respectively Missing pieces of crystallographic models were ... 1) Radius of gyration, model ﬁtting and analysis For a mixture of monomeric and dimeric scattering species, the radius of gyration is given by: R2 ¼ fM R2 þ fD R2 g gM gD ð7Þ where fM and fD are ... scattering of monomeric arrestin, the forward scattering from a mixture of monomers and dimers is: Ið0ÞTotal ¼ fM Ið0ÞM þ 2fD Ið0ÞM ð1Þ where fM and fD are the mass fractions of monomer and dimer,...

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Báo cáo khoa học: NMR solution structure and function of the C-terminal domain of eukaryotic class 1 polypeptide chain release factor pdf

Ngày tải lên : 06/03/2014, 11:20

... solution structure of the C-domain (A) Stereo view of the ensemble of the ﬁnal 48 calculated structures Twenty-four structures of the closed protein conformer are shown in red, and 24 structures of ... of eRF1 Fig S11 The Ramachandran map plot (/ and w torsion angles for the protein backbone) of all 24 conformers of the NMR families of solution structures of the closed and open conformers of ... structure calculation for the open and closed conformers of the C-terminal domain of human eRF1 Fig S3 NOE map of the minidomain (residues 329– 372) of human eRF1 NMR structure and function of...

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Báo cáo khoa học: Staphylococcus aureus elongation factor G – structure and analysis of a target for fusidic acid pdf

Ngày tải lên : 06/03/2014, 22:21

... the apo structure of S aureus EF-G Overall structure and comparison with previous EF-G structures All ﬁve domains of S aureus EF-G are ordered in our structure The overall conformation of the ... helices AV and BV 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 b-sheet ... thermophilus EF-G structures, wild type and various mutants, domains III, IV and V display a movement relative to domains I and II, resulting in a shift of the ˚ tip of domain IV of up to A [14,16]...

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Báo cáo khoa học: Evolutionary changes to transthyretin: structure and function of a transthyretin-like ancestral protein doc

Ngày tải lên : 07/03/2014, 00:20

... identification and distribution of TLP genes in nature, the structural and functional characterization of the TLP from various organisms, and the evolution of TLP and transthyretin The identification of TLPs ... structures of these proteins, all tetrameric, showed significant similarity to the published structures of transthyretin By way of example, a comparison of the structure of S dublin TLP with the structures ... in TLP structures as a result of alterations to the formation of hydrogen bonds between strands The carbonyls of residues V104 and P105 (zebrafish TLP numbering), in the middle of b-strand G,...

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Báo cáo khoa học: Eukaryotic class 1 translation termination factor eRF1 ) the NMR structure and dynamics of the middle domain involved in triggering ribosome-dependent peptidyl-tRNA hydrolysis pptx

Ngày tải lên : 07/03/2014, 05:20

... comparison of part of the protein backbone structure of the representative solution structure of the human eRF1 M domain and the Ca trace in the crystal structure of RF1 in the whole ribosome structure ... pairwise superimposition of ﬁve-residue segments of the crystal structure on the equivalent segments of each member of the family of the solution structure of the M domain of human eRF1 The resulting ... crystal structure of the M domain of the human eRF1 [3] is superimposed on the same set of atoms in the representative solution structure and is shown in red (B) The topology of the M domain of human...

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Báo cáo khoa học: High resolution structure and catalysis of O-acetylserine sulfhydrylase isozyme B from Escherichia coli pot

Ngày tải lên : 07/03/2014, 05:20

... to PLP and not mobile (Fig 5), although it participates in the induced ﬁt (Fig 4) The mobility distributions of CysM(K268A), wildtype CysM and CysM(salmo), and those of subunits B and D of CysM(RKE), ... 2007 FEBS 5383 Structure of the O-acetylserine sulfhydrylase CysM G Zocher et al Fig Stereo ribbon plot of the high resolution structure of the CysM dimer, including the molecular twofold axis (black), ... deﬁnes the thiol position of TNB to a small region above the plane of the acrylate double bond As a result of this constraint and of the spacious active center pocket of CysM, TNB was placed rather...

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Báo cáo khoa học: Structure and function of KH domains docx

Ngày tải lên : 07/03/2014, 05:20

... in which the b1-strand and b2-strand are adjacent and parallel to each other, and the b¢-strand is adjacent and antiparallel to the b1-strand (Fig 1) The length and sequence of the variable loop ... Valverde et al Structure and function of KH domains A B C Fig 10 Crystal structure of tandem type II KH domains of NusA in complex with RNA The tandem KH1–KH2 domains of NusA recognize RNA ligand 5¢-GAACUCAAUAG ... comparison is limited, however, because the structure of only one of each type of tandem KH domain has been published Here we compare the structures of the tandem KH1–KH2 domains from protein NusA...

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