molecules and complex ions
Monte carlo simulation of molecules and ions in liquid water
... distributions and hence the electrical environmentof the molecules constantly shift Lower energy states become favoured, and the result is an overall attraction force between both molecules ... interactions due to both electronic and nuclear spin are generally too small to be considered in the context of intermolecular forces, and they are often safely and reasonably neglected Organic molecules ... qeometry onversions for multipole moments F F F F F F F F F F F F F PIR fFQ ghnging the origin of multipole moments F F F F F F F F F F F F F F F PIS C Interaction functions D Program and Auxiliary...
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Darwinism, Design, and Complex Systems Dynamics
... energy sources, produce new metabolic pathways and complex functions, and cope with potentially lethal mutations (Shanks and Joplin 1999; Thornhill and Ussery 2000; Deacon 2003) Behe argues that ... clotting and metabolic pathways, are subject to naturalistic explanations and, although complex, are not in the end irreducibly complex We are just now entering a new age in understanding the relationship ... self-organization and emergence in complex natural systems Both ID and hyper-adaptationist Darwinian (HD) theorists share assumptions about the nature of organisms and systems These shared assumptions imply...
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Tài liệu Báo cáo khoa học: Altered expression of CD1d molecules and lipid accumulation in the human hepatoma cell line HepG2 after iron loading pptx
... Ultrathin sections USA 95, 2492–2497 were cut with an RMC MT-7 microtome and contrasted Levy JE, Montross LK, Cohen DE, Fleming MD & with uranyl acetate and lead citrate Observations and Andrews NC ... G1), and cells into the G1 and S + G2 ⁄ M phases in the two culture conditions One representative of at least five separate experiments is shown to Nor3.2-reactive molecules, CD1d42-reactive molecules ... epithelial cells [28], or in other immune recognition ligands such as classical MHC class I and II molecules and ICAM-1 Studies by Hultcrantz and colleagues reported that upregulation of ICAM-1 expression...
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Tài liệu Báo cáo khoa học: Insights into the interaction of human arginase II with substrate and manganese ions by site-directed mutagenesis and kinetic studies Alteration of substrate specificity by replacement of Asn149 with Asp docx
... S-(2-boronoethyl)-l-cysteine (BEC) His120 and His145, and the corresponding His101 and His126 in arginase I, were described among the ligands for coordination of Mn2+A and Mn2+B, respectively [9,24] However, ... arginase I and Mn2+B in arginase II Because ligands to the metal ions are strictly conserved in these enzymes, the difference would reside in the length of the ligand– metal separations In this ... experimental and computational methods, will be initiated soon in our laboratory General conclusions In addition to substantiate the participation of His120 and His145 as ligands for the manganese ions...
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Báo cáo khoa học: "A Uniform Treatment of Pragmatic Inferences in Simple and Complex Utterances and Sequences of Utterances" pot
... methodology for computing these inferences and for determining whether they are cancelled or not for all possible configurations: simple and complex utterances and sequences of utterances 3.1 Simple ... misunderstandings and non-understandings Speech Communication, 15:213-229 G Hirst 1991 Existence assumptions in knowledge representation Artificial Intelligence, 49:199-242 L Karttunen and S Peters ... suppositions in a logical framework that handles defaults (Reiter, 1980), but this approach is not tractable and it treats natural disjunction as an exclusiveor and implication as...
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Organic Molecules and Chemical Bonding pdf
... include alkanes (C and H), haloalkanes (C, H, and X), alcohols and ethers (C, H, and O), and amines (C, H, and N) [graphic 1.5] (4,5,9,11,12/98)(1,9,10/99) Neuman Chapter Alkanes (C-C and C-H Bonds) ... molecule For example, C and Si are in the fourth column (Group 4A) and they each typically have four bonds in their molecules, while F, Cl, Br, and I are in Column 7A and they typically form ... Organic Molecules In the following sections, we use the preferred numbers of bonds for C, H, N, O, and the halogen atoms (X) to draw structures for common types of organic molecules and describe...
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Báo cáo Y học: Modelling of simple and complex calcium oscillations From single-cell responses to intercellular signalling pdf
... and global bifurcations by which calcium oscillations arise (subsections Hopf bifurcations and Global bifurcations) The models addressing the questions of how the oscillatory calcium signal is transformed ... give rise to a dynamics more complex than simple oscillations (see Chaos and bursting) FREQUENCY AND AMPLITUDE BEHAVIOUR For a better understanding of biological oscillations, it is of interest to ... unbound ions On the other hand, the binding of Ca2+ ions to proteins brings about that a much larger number of ions are present in total Thus, it is worth investigating whether fluctuations can...
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real hypersurfaces and complex analysis
... hypersurfaces M1 and M2 in C2 and points p ∈ M1 and q ∈ M2 , when there exist open sets U and V in C2 , with p ∈ U and q ∈ V and a biholomorphism Φ : U → V such that Φ(p) = q and Φ(M1 ∩ U) = M2 ... But then the connection to complex variables is destroyed and we end up by generalizing complex analysis to R3 and its finite dimensional group of conformal transformations It is more fruitful ... The converse is true when M and f are real analytic (but not in general) and can be proved by complexifying M and f Theorem Let M be a real analytic hypersurface in Cn and let f be a real analytic...
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Báo cáo khoa học: Expression level and agonist-binding affect the turnover, ubiquitination and complex formation of peroxisome proliferator activated receptor b pptx
... Mr PPARb complexes that consist predominantly of PPARb, and may even represent homooligomers Such complexes have never been observed, and are unlikely to exist under physiological conditions The ... conditions of overexpression It is likely that overexpressed PPARb forms high Mr complexes consisting at least in part of oligomerized PPARb, and that these complexes are polyubiquitinated and ... conditions of PPAR overexpression), as is the case, for example, for the ligand-regulated turnover and ubiquitination of PPARa [35] and PPARc [34] Agonist-regulated PPARb ubiquitination and turnover...
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Báo cáo khoa học: Effects of sphingomyelin, cholesterol and zinc ions on the binding, insertion and aggregation of the amyloid Ab1)40 peptide in solid-supported lipid bilayers ppt
... important for raft membranedependent aggregation and neurotoxic action, in particular the presence of sphingomyelin, cholesterol and zinc ions Results and Discussion In order to characterize the interaction ... layer before and after binding of peptide and subsequent aggregation, and of the layer composed of peptide (or a portion of the peptide) that extends beyond the lipid surface Both p- and s-polarized ... b-sheet, and even smaller amounts of a-helix [41] We therefore assume that the peptide layer on the DOPC and SM membrane surface consists of such a mixture of oligomers and secondary conformations...
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Graph Theory and Complex Networks ppt
... ), and joining two vertices ve and ve∗ if and only if edges e and e∗ are incident with the same vertex in G To illustrate, consider the graph shown in Figure 2.6(a), containing four vertices and ... important to think about encryption of messages, handling transmission errors, synchronization between transmitter and reader (i.e., sender and receiver), and so on In other words, these seemingly primitive ... the Scandinavian countries, France, England, Germany, and others Concerning topology, these networks were relatively simple: there were only relatively few nodes (i.e., communication posts), and...
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MANAGING RISK IN LARGE PROJECTS AND COMPLEX PROCUREMENTS
... Contractor relations Contractual and business issues Stakeholder relations Relationships with users, expectations management, public and community relations, political issues (internal and external) ... Governments and large organizations Dennis Goodwin, our colleague and a principal consultant at Broadleaf, made major contributions to Chapter 15 on market testing and outsourcing and Chapter ... Canterbury and based at the university Their support is gratefully acknowledged I continue to enjoy stimulating and often vigorous discussions with my colleagues on the Standards Australia and Standards...
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physics of bio-molecules and cells
... Physics of Bio -Molecules and Cells RNA molecules are similar to single stranded DNA molecules with two differences First, the base Thymine is replaced by another base, Uracil, and second, the ... R|DNA stands for a repressor-DNA complex The concentration of DNA strands with no repressor is indicated by [DNA], that of free repressor by [R], and that of the complexes by [R|DNA] Concentrations ... repressor complex We could view the complex as a molecular detector and amplifier The binding of lactose to the repressor complex triggers a large structural transition that breaks up the complex and...
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scanning probe microscopies beyond imaging. manipulation of molecules and nanostructures, 2006, p.559
... observed, 1.2 Chirality and STM: From 0D to 2D Fig 1.16 Monolayer image and model of (S)ISA (A and C) and (R)-ISA (B and D) DL1 and DL2 indicate lamellae composed of ISA and 1-octanol molecules, respectively ... achiral molecules include supramolecular assemblies of ‘‘lander’’ molecules [37], discotic [38], and smectic [39] liquid crystals, and achiral purine molecules [40] Similarly to chiral molecules, ... Coordination Interactions 344 Interactions Between Histidine and Nickel Nitrilotriacetate 344 Metallo-Supramolecular Ruthenium(II) Complexes 344 Charge-Transfer Complexes 346 Conclusions and Outlook 347...
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The influence of NO 3 −, CH3COO−, and cl− ions and the morphology of calcium hydroxyapatite crystals
... obtained Different sizes and shapes of the crystals can be explained by different interactions of hydroxyapatite with the anions of the initial salts: adsorption of acetate anions on the HA surface, ... chloride ions for the hydroxyl groups of HA, and “inertness” of nitrate anions The thermal treatment of the samples at 500–1100°C for h led to the formation of faceted crystallites and an increase ... groups (up to wt %) [3] The presence of the absorption bands of nitrate and acetate groups can be explained by adsorption of the corresponding ions on the surface of HA crystals Further annealing...
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Báo cáo toán học: "Minimum rank of matrices described by a graph or pattern over the rational, real and complex numbers" doc
... provides improved complexity bounds over the real numbers, and needs at most (M d)O(1)N steps, where M is the number of equations and inequations, N is the number of variables, and d is the maximum ... by Graphs, Digraphs, and Sign Patterns,” and in this section we briefly discuss theoretical algorithms for the computation of minimum rank, their complexity, and some implications in the cases that ... the complex numbers, the insolvability of a system of polynomial equations and inequations is determined by Hilbert’s Nullstellensatz It says that a system of polynomials is unsolvable if and...
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