the electronic structures of homonuclear diatomic molecules

... vitro In these authors’ opinions, such studies obviously represent the next logical step in the unfolding story of the modulation of the oligomeric structures of HIV-1 viral enzymes by synthetic ... permitting the formation of a pseudo antiparallel b sheet with one of the PR subunits The second class of molecules that inhibited PR dimerization include pentaester derivatives of of didemnaketal ... plasmid (that contains the selection module kPR-lacZ-tet and directs the production of the cI-PR fusion protein), cI-PR represses the transcription of the reporter genes and the transformants show...

Ngày tải lên: 08/03/2014, 09:20

... hand, and on the other by the attitude of the speaker towards the message and the addressee "Thus into the domain of the organization of utterance pertains all that is connected with the processual ... basic hypotheses, the second of which can conveniently be elaborated in terms of Ong's list of the characteristics of an orally-based language The two hypotheses and their respective sub-hypotheses ... aspect of utterance (in contrast to the abstract and static character of the other two levels), that is to say, the dynamism of the relations between the meanings of individual lexical items in the...

Ngày tải lên: 24/02/2014, 18:20

... critical They include the outcome of various studies that the authors have been involved with over a number of years with a variety of partners They also include a study of the works of a number of ... means the downfall of the corporation you work for Don’t believe us? The printing press nearly killed off one of the largest corporations in history – the Catholic Church At the start of the sixteenth ... live and work In fact, they are revolutionizing it The outcome of this fact is that the balance of power in the business world is shifting In very short order, the theory of the firm is going to...

Ngày tải lên: 03/06/2014, 01:21

... About the pagination of this eBook Due to the unique page numbering scheme of this book, the electronic pagination of the eBook does not match the pagination of the printed version To navigate the ... draw pictures of the place you went or the things you did Don’t put anything important in the center of the frame where the photograph will go Now glue your photograph in the center of the frame, ... P A CE S Think of all the different kinds of workers you see when you go places, such as shop clerk, firefighter, office worker, farmer, nurse Write down the names of some of these or ask a grown-up...

Ngày tải lên: 19/06/2014, 08:20

... on the electronic structures of BNNTs Figure 7a,b,c,d,e shows the PDOS of s and p orbitals of B68 and N35 atoms as well as the summation of these orbitals for the (8,0) BNNT At strain of 0, there ... l z(t ) is the length of the BNNT in the axial b BNNT (6,6) The normal strain in the axial direction of the BNNT is given by (2) j where is the average radius of atom i and rij is the distance ... address the influence of axial tensions on the electronic properties of (8,0) zigzag and (5,5) armchair BNNTs Although the stress-strain profiles indicate the mechanical properties of these two...

Ngày tải lên: 21/06/2014, 05:20

... that the electronic structures of S-doped C-SWNT depend strongly on the geometrical configuration of S atom in the C-SWNT Under the external electric field, the electronic extended states of wave ... in the process of the redistribution of wave function close to the cap One is as coupled states to the tip of C-SWNT and another is as extended states to the body wall farer away from the cap The ... close to the cap One is as coupled states to the tip of C-SWNT and another is as extended states to the body wall farer away from the cap The number of the former is less than that of the latter,...

Ngày tải lên: 21/06/2014, 18:20

... have calculated the electronic states of GaAs/AlxGa1-xAs QDRs The model we proposed can be used to calculate the electronic states of quantum wells, wires, dots, and the single ring The single electron ... difference We have calculated the electron and hole energy levels as functions of the radius of QDRs In calculations, we assume the height of QDRs to be l=3 nm Figure 2a, b shows the electron and hole ... higher than the available experimental data in Ref for we have not included the binding energy of exciton The exciton binding energy is estimated to be 15 meV from the difference between the theoretical...

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 06/08/2014, 18:20

... [20] The degradation of CD4 mediated by Vpu involves multiple steps that are initiated by the direct physical binding of Vpu to the cytoplasmic tail of CD4 in the ER [21] Although the binding of ... responsible for the ubiquitination of proteins destined for degradation by the proteasome and the enhanced CD4 turnover in presence of Vpu Indeed, further lines of evidence for an involvement of the Ub-proteasome ... decrease the rate of degradation of some substrate by the Ub-proteasome system given that fusion of the his-myc tag at the N-terminal of Ub renders poly-Ub-protein conjugates less recognizable by the...

Ngày tải lên: 13/08/2014, 05:22

... important area of biology and end with a list of some of the major outstanding problems in that area and what sort of things would help get them solved That way, people from other disciplines ... different jargon from synthetic organic chemists and so on And he says that biologists are better off because most biologists can go to any talk by any other biologist, whether they are a structural ... meeting of the American Chemical Society and the American Physical Society and so forth, there ought to be a special plenary lecture by a biologist, one who’s really good at explaining things The...

Ngày tải lên: 14/08/2014, 08:20

... the signaling pathway by blocking the inhibitory activity of Ptc on Smoothened GPC3 competes with Ptc for Hh binding The interaction of Hh with GPC3 triggers the endocytosis and degradation of ... way from the much larger relatives in terms of complexity of gene usage or other regulatory characteristics Characteristic structural features Because there are no reports on the analysis of glypicans ... [15,18,20,21] Furthermore, GPC3 promotes the growth of hepatocellular carcinoma cells by stimulating Wnt signaling [22] The function of glypicans is not limited to the regulation of growth factor...

Ngày tải lên: 14/08/2014, 08:21

... set of the following parameters: the number of helices, the length of each helix, the loop lengths, and a description of the topology of helix pairs The latter is defined by the coordinates of ... adaptation These profiles were used to scan the set of palindromes again, and the procedure was iterated until convergence Thus a set of profiles was constructed The profile with the greatest ... organization of the cobalamin biosynthetic genes and regulatory B12-elements (yellow cloverleaf-type structures) Genes of the first part of the pathway, involved in the corrin ring synthesis are...

Ngày tải lên: 14/08/2014, 14:21

... times of stress 1.7 Sucrose synthesis Most of the carbon needed for the production of sucrose originate from triosephosphate molecules produced by the light-independent pathway of photosynthesis, ... suggesting the intimate link between the sugar metabolic pathway and osmolytic homeostasis 1.9 Fate of synthesized sucrose The rate of sucrose synthesis increases with the rate of photosynthesis ... regions of the open SPS-F6P complex (cyan) and the closed SPS-S6PUDP model (magenta) Schematic diagram of the reaction between F6P and UDP-Glc in the binding cleft of SPS A schematic diagram of the...

Ngày tải lên: 11/09/2015, 09:08

... of energy band in bulk Si and confinement effect: the confinement decreases the energy of HO states and increases the energy of the LU states, but the magnitude of the energy shift depends on their ... and ez is the zero-point energy of Si–H vibrations The value of lSi is equal to that in bulk Si and the zero of lH is taken to be the chemical potential at which the formation energy of SiH4 is ... could be the same as those using larger supercells where Etot is the total energy of nanowire in the supercell, lSi (lH) is the chemical potential of an Si (H) atom, nSi (nH) is the number of Si...

Ngày tải lên: 16/03/2014, 15:37

... sites The other is that the crystal reconstruction due to the coordination number imperfection of surface atoms (the surface relaxation) leads to the re-contribution of the electronic structure The ... contraction of the TiO6 octahedron increase the overlap of Ti 3d and O 2p orbitals which enlarges the bondingantibonding splitting of the hybridized orbitals Then the 0.55% contraction of the surface ... layers gives rise to the negative shift of the DOS core band of Ba 4p which is corresponding with the positive shift of the corelevel binding-energy (the positive shift of the DOS core band is...

Ngày tải lên: 30/10/2015, 19:59

... questions (if/ whether ) Notes: S + asked ( O) Wanted to know + If/ whether + Wondered S+V Change in adverbs and articles this these here now tomorrow today → that → those → there → then → the following ... store the following day Question: - “what is your name?” the teacher asked me = >The teacher asked (me)what my name was Note: She said, “Are you thirsty, Mary?”  She asked Mary if (whether) she ... Compare: (hai vật ngày phát triển song song) Form: Short adj: The adj +er + S+ V, The adj +er + S+ V Long adj: The more +adj + S+ V, The more +adj + S+ V 32 V + preposition be amazed at / be amused...

Ngày tải lên: 17/08/2013, 23:10

... of the structure are not seen on the map, probably owing to disorder of these regions The overall geometry of the model according to the procheck program [21] is of good quality, with 95.4% of ... to elucidate the mechanism of the elevated thermostability of TtAKb In this article, we describe the crystal structures of TtAKb in two forms, Thr-bound and Thr-free, and discuss the regulatory ... regulatory mechanism of Thr and the structural features responsible for the high thermostability of TtAKb Results and Discussion Model quality The crystal structure of the Thr-bound form of TtAKb ˚ (TtAKb-Thr)...

Ngày tải lên: 18/02/2014, 08:20

... decrease in the amount of precipitation in the presence of high concentrations of Arg-HCl in the absence of the chaperone precluded analysis of the effect of this concentration on the protective ... precluding analysis of the effect of these concentrations on the chaperone activity of aB-crystallin (Fig 4B,C) None of the compounds had an effect on the morphol- A C 940 B ogy of the amyloid fibrils ... for days either in (A) the absence or (B) the presence of aB-crystallin (0.4 mgÆmL)1) and either 250 mM of Gly (d), 250 mM of Lys-HCl ()), 250 mM of Arg-HCl ( ) or 100 mM of GdnHCl (h) The buffer-only...

Ngày tải lên: 18/02/2014, 16:20

... determinant As the C3a ion is at m/z 690, this excludes the possibility of the other Fuc being at the Gal next to the subterminal GlcNAc The position of the second Fuc 3-linked to the internal ... 16 scans per increment The spectrum offset was set 1.5 p.p.m to lower field of the most downfield shifted proton, Glc1a, to minimize TOCSY transfer The raw data sets of the homonuclear 2D experiments ... analysis of the branching patterns and blood group determinants with low (picomole) amounts of the underivatized oligosaccharides The significant aspects of this strategy are the combined use of CID...

Ngày tải lên: 19/02/2014, 12:20

... for the understanding of the genetics of this significant food-borne pathogen We therefore elucidated the structures of these major cell surface carbohydrates to make functional analysis of the ... placed the sole a-D-Gal sidebranch at O-2 of the unit with the anomeric at d 4.99, which has to belong to the sole 2-substituted unit, that being the 2,3-disubstituted Gal in the backbone The other ... observation in the linkage analysis that the 6-O-Me-Hep was a terminal unit The fragment ion at 382 arose from the loss of both the 6-O-Me-Hep and GalNAc, which then lead to the loss of Rib with...

Ngày tải lên: 21/02/2014, 01:21