het1 het2 in comparison to h het eliminations

... of the radical R • H H3C H 105 H H H3 C H2 C H 101 Hb Hb Hb H Hb Hb Hb H Hb Hb Hb (H3 C) 2HC H (H3 C) 3C H 98 96 Hb Hb Hb Hb Hb Hb H H H H Hb Hb Hb H H i.e., no-bond resonance form per Hb Hb Hb Hb ... + Hg R OH R + Hg OH R + OH OH R Hg R OH OH R OH H + R Hg R R Hg OH H OH Termination steps, for example: H + R Hg R OH H Hg H Hg R OH Initiation step: OH OAc Hg OH OH H Hg R Hg R R H + Hg These ... C H H H2 N H C H 93 H Hb ᮎ O H C H unknown H no-bond resonance forms Hb N C O C H O C H ᮍ Hb N C Hb H ᮎ ᮎ H ᮎ H ᮎ H 10 Radical Substitution Reactions at the Saturated C Atom In the VB model, the...

Ngày tải lên: 02/04/2014, 16:01

... The Economics of FTTN vs FTTP There are three predominant schools of thought regarding how to meet the everincreasing bandwidth needs of consumers and businesses Fiber -to- the-premise ... solution that boasts 80 Mbits/sec to the home Certainly the question surrounding this architecture is whether 80 Mbits/sec will be adequate and for how long At the end of the day, the key consideration ... operating companies that want to be first in reaching customers with today’s broadband services Because it re-uses existing infrastructure to the customer, turn-up can be achieved faster to meet...

Ngày tải lên: 10/12/2013, 17:15

... with a prime to distinguish it from the forecasts made subsequently, after the central bank has decided on the interest rate, which is instantly revealed P P Thus the operator E1 in (3) combines ... prices The focus of the paper is whether, in addition to choosing and announcing rt , the central bank should also reveal its expectation of Vol No The Expected Interest Rate Path 155 the interest ... of this shock, which it knows will lead to the choice of the future interest rate As they swap signals, both the central bank and the private sector learn from each other As a consequence, the...

Ngày tải lên: 17/02/2014, 03:20

... all of the isolated heavy or light chains change their specificity In the case of HpU-17 and )20 mAb (a series of mAbs obtained along with HpU-9) [17], their heavy or light chains showed the same ... subunits] In contrast, the heavy chain (HpU-9 -H) and the light chain (HpU-9-L) isolated from the parent HpU-9 mAb primarily reacted with the b-subunit but only scarcely with the a-subunit (lane 2) In ... western blotting with monoclonal antibodies (HpU-2 and )17) against the a- and the b-subunits, respectively [17] The heavy chain (HpU-9 -H: lane 3) and the light chain (HpU-9-L: lane 4), which were...

Ngày tải lên: 07/03/2014, 21:20

... around which the short a-helical LID domain, situated in the C-terminal moiety, and the NMP-binding (NMPbind) domain move in an induced-t mechanism, closing upon binding of the phosphate donor ... with CMP The side chain of R110 is a hydrogen bond donor to the N3 atom of cytosine As the main chain carbonyl of D129, a H- bond acceptor, interacts with the terminal oxygen of S36 side chain, ... side-chain of methionine decreases in these two enzymes both the Km for NMP and the kcat compared with the parent molecules [16,18] In conclusion, the amino acids interacting with the phosphate...

Ngày tải lên: 16/03/2014, 10:20

... patterns, indicating that h- WO3 crystalline phase with high purity could be obtained using the present synthetic process 3.2 Scanning and transmission electronic microscopy To understand the formation ... 5:1 shows that the synthesized material is made of homogenous phase with uniform particles which display nanorods morphology sizing about lm in length TEM image (Fig 2e) shows that the as-synthesized ... known that the anisotropic growth of the particles can be explained by the specific adsorption of ions to particular crystal surface, therefore, inhibiting the growth of these faces by lowering their...

Ngày tải lên: 19/03/2014, 16:47

Ngày tải lên: 20/03/2014, 22:20

... Cassio This shows now Othello's other tragic flaw He made himself susceptable to Iago and the jealousy within him begins to lead to the demise of others By his actions Othello has isolated himself ... value without questioning the circumstances Iago wonders why someone would pretend to be something they are not, while in fact that is the exact thing he represents Finally, after hearing the exploits ... because it is the point in the play where Iago begins to establish his manipulation of Othello Cassio feels that it is necessary to seek the help of Desdemona in order to regain his position of...

Ngày tải lên: 21/03/2014, 22:48

... contact with residues whose role in proton transport has as yet not been analyzed This pertains in particular to residues in the cytoplasmic domain which might be involved in the pathway of proton entry ... rather on the regions initiating or impairing insertion of a segment in the membrane Therefore, in the case of M8 where the length of the M8 recombinant peptide is probably shorter than that ... to the extracytoplasmic moiety of the molecule The positions of the internal polar cavities hence suggest that the proton translocation pathway might begin close to the phosphorylation site in...

Ngày tải lên: 23/03/2014, 21:20

... he was of all others the best qualified to impress the native mind with the highest opinion of the English character How he has succeeded, the influence he has acquired, and the benefits he has ... scruples which he entertained against being the author of the autobiographical sketch, embracing so singular a portion of his life, which I have extracted from the rough notes confided to me That his ... expressed it, which is the 'cat, and which the rat?' I assured him that England was the mouser, though in this country Holland had most territory We took our leave after he had intimated his intention...

Ngày tải lên: 29/03/2014, 22:20

... Casas-Finet JR, Maki AH, Murphy JB & Chase JW (1987) Investigation of the role of individual tryptophan residues in the binding of Escherichia coli single-stranded DNA binding protein to single-stranded ... following binding with HpSSB, thereby preventing rehybridization of the unwound oligo with the M13mp18 ssDNA However, at a higher concentration of HpSSB, the excess multimeric HpSSB in the vicinity ... (F) Electrophoretic mobility shift assay to show the binding of HpSSB to the short radiolabeled oligonucleotide The intensity of the shifted band increased with an increasing protein concentration...

Ngày tải lên: 30/03/2014, 02:20

... the switching instant) will be much higher than the bandwidth derived from the FOR with SP-frames This high bit rate of the SSP-frame can be reduced by changing the (QPSP, QPSP2) pairs, but this ... switching Here, it is important to note that in the original “downstairs” the highest average among all the moving averages of the sequence is selected, while in the new FOR with the SP-frames individual ... transition points, which are the best switching points exploiting the characteristics of the “downstairs” reservation scheme But due to the different coding nature of the switching frames, the transition...

Ngày tải lên: 20/06/2014, 22:20

... approaching 100% and the ability to perform the study in a way that is not operator dependent, and in patients in which ultrasound is difficult to perform, such as those who are obese [19,21] However, ... both sites are shown in Table Discussion Abdominal imaging is currently indicated in all but the most straightforward cases of appendicitis [17] However, the choice of which study to use–either ... need to determine ways to reduce this exposure [22] Despite the increase in CT usage in the United States, ultrasound continued to serve as the primary modality in many hospitals in Israel The...

Ngày tải lên: 20/06/2014, 23:20

... attention, the content has to be heterogeneous and the test sessions should not last more than 30 minutes each, including any training phase For the same reason, it is important to select stimuli whose ... subjects in the two laboratories not differ in their responses to the stimuli The result of the test for both the resolutions indicates that the the null hypothesis cannot be rejected, as a further ... sequences [13], where H denotes the native height of the video window in the screen Table summarizes the specifications of the display devices The ambient lighting system in both laboratories consisted...

Ngày tải lên: 21/06/2014, 07:20

... that is α Ia f p ≤ K f p, α Ib− f p ≤ K f p, 1.3 where b−a α αΓ α K 1.4 Inequality 1.3 , that is the result involving the left-sided fractional integral, was proved by H G Hardy in one of his ... hold We continue by defining Hadamard type fractional integrals Let a, b , ≤ a < b ≤ ∞ be a finite or in nite interval of the half-axis Ê and α > The left- and right-sided Hadamard fractional integrals ... an increasing function on a, b , α such that g is a continuous function on a, b and α > Ib− ;g f denotes the right-sided fractional integral of a function f with respect to another function g in...

Ngày tải lên: 21/06/2014, 07:20

... partitioning) The PHY and MAC overheads in an 802.11 WLAN are significantly larger than the RTP/UDP/IP overheads Other than adding the MAC and PHY headers to the packet, the increase in the number ... for this flow changes to C < C, the scheduler reduces the flow’s guaranteed throughput to R = R·C /C in order to ensure that the time share τ of the flow is maintained at the same level and other ... algorithm, accompanied by an integrated traffic shaper, to provide guaranteed fair channel access to HCCA flows with reservation The traffic shaping and scheduling mechanisms limit the HCCA service to the...

Ngày tải lên: 21/06/2014, 23:20

... by H The charge around the H atom at the Si adatom removes toward the adsorbed Ag atom and forms a covalent-like Ag -H bond Due to the charge transfer from the H to the Si adatom on the 1 9H- Si(111)7 ... adatom and the rest atom in FHUC along the solid line shown in Fig 1b In Fig 2d, the positive contours (solid lines) represent the charge accumulation, whereas the negative contours (dashed lines) ... represent the charge depletion The charge density depletes around the H atom and transfer toward the Si adatom when the H sits on the Si adatom There is a strong covalent bond between the H and the Si...

Ngày tải lên: 22/06/2014, 00:20

... positive integers n, v, and h ∈ Z , then h, v En,w z, q Zp ··· Zp q w n v v v j xj h xj z j j h, v By 2.1 , h, q -Euler polynomials of higher-order, En,q following generating function: h, v Note that when ... n! 2.2 By comparing coefficients of tn /n! in the above equation, we have the following theorem Theorem 2.1 For positive integers n, v, and h ∈ Z, then h, v En,w q ··· Zp wq Zp h n v v v j xj xj ... q , as follows: h h h Note that if w → 1, then En,w q → En ∞ 2etx wqh et h Fw,q t etx Fw,q t, x h En,w x, q n tn n! 1.12 q and h h Fw,q t −→ Fq t qh et 1.13 cf If q → 1, then h Fq t −→ F t ∞...

Ngày tải lên: 22/06/2014, 18:20

... the paths converging to a node, the path attaining the lower expected distortion is retained (survivor) while the rest are pruned In the final stage, among the survivor paths, the one with the ... being of high-importance mainly corresponds to intense motion or high texture regions For example, in Figure 3(c) the “high” importance slice group coincide with foreman’s head which is the main ... corresponding to the minimization of (9), subject to a rate constraint, is shown in Figure Each branch in the trellis corresponds to the application of a specific RS code to a slice group The algorithm...

Ngày tải lên: 22/06/2014, 23:20

Ngày tải lên: 05/08/2014, 10:20