fragmentation last step of wittig and horner wadsworth emmons reactions
organic mechanisms - reactions, stereochemistry and synthesis
Ngày tải lên :
02/04/2014, 16:01
... into understanding and understanding into knowledge The logical and rigorous exposition of many of the core reactions and concepts of chemistry and the addition of new ones, integration of theory ... Fragmentation of b-Heterosubstituted Organometallic Compounds 4.7.2 Peterson Olefination 4.7.3 Oxaphosphetane Fragmentation, Last Step of Wittig and Horner Wadsworth Emmons ... Mechanism of the Wittig Reaction Wittig Horner Reaction Horner Wadsworth Emmons Reaction 11.3.1 Horner Wadsworth Emmons Reactions...
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Tài liệu The Economics of FTTN vs. FTTP doc
Ngày tải lên :
10/12/2013, 17:15
... home or office and offer the most future-proof solution in terms of pure bandwidth capabilities But in some cases, FTTP may not be the optimal solution in terms of overall cost and the value of existing ... sees as the real demand for customer bandwidth – and where that demand will be five to ten years from now The biggest unknown in the broadband services equation lies in how much bandwidth will be ... life in terms of bandwidth demand Service providers may find themselves in the position of deciding which course of action is more prudent in the long run – reaching customers ahead of competitors...
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Tài liệu The Expected Interest Rate Path: Alignment of Expectations vs. Creative Opacity∗ ppt
Ngày tải lên :
17/02/2014, 03:20
... International Journal of Central Banking September 2008 Introduction A number of central banks—the Reserve Bank of New Zealand, the Bank of Norway, the Central Bank of Iceland, and the Swedish Riksbank—now ... of the third-order equation, and transparency dominates • If ∆ > and x, the solution of the third-order equation, lies outside the roots of P , then ∆L > and transparency dominates • If ∆ > and ... the approach followed by the Reserve Bank of New Zealand and the Bank of Norway Svensson (2005b) presents a detailed discussion of the shortcomings of central bank forecasts based on the constant...
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Báo cáo khoa học: Specific degradation of H. pylori urease by a catalytic antibody light chain pptx
Ngày tải lên :
07/03/2014, 21:20
... new bands between bands and became clearer and several bands around bands and also became darker The band strength of the b-subunit decreased by 65% after h of incubation, whereas that of the ... stronger and two new bands (2; 39.2 kDa) and (3; 38.3 kDa) appeared Bands and became darker, whereas the band of the a-subunit showed little change At h of incubation (lane 3), the band of the ... more prominent The band of the b-subunit became very faint Some new bands between bands and became clear, and several bands around bands and became stronger The a-subunit band changed little during...
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Báo cáo khoa học: Structural and functional consequences of single amino acid substitutions in the pyrimidine base binding pocket of Escherichia coli CMP kinase pdf
Ngày tải lên :
16/03/2014, 10:20
... Comparative structures of CMP and UMP, and interactions between the cytosine moiety of nucleotide and various side chains of wild-type CMP kinase (Upper) Chemical differences between CMP and UMP are indicated ... from the distal point of the rest of the protein Such a dipole will have weak interactions with the rest of the protein Thus, if turned off (by removal of Arg and protonation of Asp185), the protein ... states of native and R188M-modied structures revealed a major difference In the absence of R188, D185 is calculated to be neutral (protonated) Thus, by turning off both charges (of R188 and D185),...
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characterization of h - wo3 nanorods synthesized by hydrothermal process
Ngày tải lên :
19/03/2014, 16:47
... modes of crystalline h-WO3 The bands at 807 and 702 cmÀ1 are attributed to the symmetric and asymmetric vibrations of W6+–O bonds (O–W–O stretching modes), while the bands at 328, 265 and 236 ... size and the yield of the rod-like nanostructures increase with increasing the amount of the salt As a result, the presence of an appropriate amount of Na2SO4 plays a key role in the formation of ... play important roles on the types of structure, morphology and size of particles constituting the product The details of the effect of sulfate on the formation of WO3 nanocrystal are not clear...
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othello battle of good vs evil
Ngày tải lên :
21/03/2014, 22:48
... rid of Desdemona and even suggests methods of killing her Iago, so proud of his accomplishments of underhandedness : Work on My med'cine works! Thus credulous fools are caught, And many worthy and ... manipulation of Othello Cassio feels that it is necessary to seek the help of Desdemona in order to regain his position of lieutenant and therefore meets with her to discuss this possibility Iago and ... him to lie, cheat, and commit crimes on other characters This motivation is the destruction of all that is good and the rise of evil This contrast is represented between Iago and Desdemona Desdemona...
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Báo cáo Y học: Modeling the three-dimensional structure of H+-ATPase of Neurospora crassa Proposal for a proton pathway from the analysis of internal cavities pptx
Ngày tải lên :
23/03/2014, 21:20
... side-chain oxygens of Glu309 on M4 and of Asn796 and Asp800 on M6 In our PMA1_NEUCR model, these residues correspond to Ile331, Ile332, Val334, and Val336 on M4 and Ala726 and Asp730 on M6 Alanine-scanning ... located between Val289 and Ile293 in the N-terminal end of M3, and Trp756 and Gly757 in the cytoplasmic loop connecting M6 and M7 As shown by mutagenesis in yeast, mutation of Val289 to Phe resulted ... middle of the a/b Rossman fold, down to the Fig Position of internal polar cavities in the Rossman fold of PMA1_NEUCR and two other soluble members of the HAD superfamily (A) Phosphorylation site of...
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The Expedition to Borneo of H.M.S. Dido For the Suppression of Piracy pptx
Ngày tải lên :
29/03/2014, 22:20
... Outrage and oppression of Macota. Fate of the Sultana and her crew. Mr Brooke made Rajah of Sarawak. Liberation of rebel prisoners. State of Dyak tribes. Court of justice opened. Dyak burials, and ... time the islands of the Asiatic Archipelago islands of vast importance and unparalleled beauty lying neglected, and almost unknown He inquired and read, and became convinced that Borneo and the Eastern ... attired, and mostly unarmed a proof of confidence in us, and a desire to assure us of his own friendly intentions I treated him with sweetmeats and syrup, and of his own accord he took a glass of sherry,...
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Báo cáo khoa học: Helicobacter pylori single-stranded DNA binding protein – functional characterization and modulation of H. pylori DnaB helicase activity pptx
Ngày tải lên :
30/03/2014, 02:20
... indicates the position of the ssDNA in the absence of SSB protein and the subsequent retardation of the band with an increasing amount of SSB is also shown *Position of the double-stranded control DNA ... fmol of (c-32P)ATP and the required amount of DnaB (50 ng), along with pmol of M13mp18 ssDNA and various concentrations of SSB The reaction mixtures were incubated at 37 °C for 30 and the reactions ... Wt and DC20 SSB protein in varying concentrations (0, 0.45, 0.9, 1.8, 2.7 and 3.6 lg, respectively) with 300 ng of M13mp18 single-stranded circular DNA and ⁄ or 300 ng of pUC18 double-stranded...
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Báo cáo hóa học: " Efficient bitstream switching for streaming of H.264/AVC coded video" doc
Ngày tải lên :
20/06/2014, 22:20
... all the frames of that step As the SP-frame has a higher bit rate than all the other frames of the step and it is the first frame of every step, therefore, there is a possibility of buffer underflow ... http://jivp.eurasipjournals.com/content/2011/1/7 2.3 Bandwidth utilization factor To stream N frames of video with FOT f(t) of duration τ, and bandwidth is allocated with FOR specified by g(t), the utilization of the allocated bandwidth ... buffer and maximum utilization of the bandwidth Also merging the additional bandwidth into the next step of the target bitstream does not disturb the whole “downstairs” up to the end, only one step...
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Báo cáo hóa học: " An international evaluation of ultrasound vs. computed tomography in the diagnosis of appendicitis" doc
Ngày tải lên :
20/06/2014, 23:20
... sensitivity of 90-100%, a specificity of 9199%, and a positive predictive value of 95-97% In contrast, a carefully performed US has a sensitivity of 7590%, a specificity of 86-100%, and a positive ... the use of triple contrast (oral, rectal, and IV) Patients were initially prepped with l of oral and 300 cc of rectal contrast (Bracco Diagnostics Inc., Princeton, NJ), followed by 145 cc of Isovue-300 ... pathology was considered the gold standard for calculation of sensitivities of CT and US Radiographic results were evaluated in order to calculate sensitivity and Page of positive predictive values...
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Báo cáo hóa học: " Research Article Subjective Quality Assessment of H.264/AVC Video Streaming with Packet Losses" potx
Ngày tải lên :
21/06/2014, 07:20
... Three and one outliers were detected out of 23 and 17 subjects, from the results produced for CIF data at PoliMI and at EPFL, respectively Four and two outliers were detected out of 21 and 19 ... degrees of freedom, where N denotes the number of observations in the sample (i.e., the number of subjects after outliers detection) and S the estimated standard deviation of the sample of observations ... mean score mc and the standard deviation Sc ; (b) set Ps equal to the number of times the score of one subject if above mc + ωSc ; (c) set Qs equal to the number of times the score of one subject...
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Báo cáo hóa học: " Research Article On an Inequality of H. G. Hardy" pptx
Ngày tải lên :
21/06/2014, 07:20
... Since x ∈ a, b and α − q < 0, then we obtain that the left hand side of 2.10 is b a x−a α q Γα α |I f x | x−a α a dx ≥ b − a α 1−q Γα b q a α Ia f x q dx 2.11 and the right-hand side of 2.10 is b ... 2.76 a b x Journal of Inequalities and Applications 15 Notice that Hadamard fractional integrals of order α are special case of the left- and right-sided fractional integrals of a function f with ... Srivastava, and J J Trujillo, Theory and Applications of Fractional Differential Equations, vol 204 of North-Holland Mathematics Studies, Elsevier, New York, NY, USA, 2006 S G Samko, A A Kilbas, and O...
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Báo cáo hóa học: " Research Article Efficient Transmission of H.264 Video over Multirate IEEE 802.11e WLANs" docx
Ngày tải lên :
21/06/2014, 23:20
... version of the DCF of the original standard and is used for contention-based access, and HCCA (HCF controlled channel access) that specifies the polling or controlled access schemes The 802.11e standard ... time fair queuing, multirate operation and packet loss issues are handled and fairness of the scheduling algorithm is maintained The architecture of a station and an AP that implement CAPS is depicted ... mechanism and provides general solutions for assigning partitions to different services of the WLAN Given the availability of the prioritized and guaranteed services in a WLAN, and the ability of an...
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Báo cáo hóa học: " Influences of H on the Adsorption of a Single Ag Atom on Si(111)-7 3 7 Surface" doc
Ngày tải lên :
22/06/2014, 00:20
... atoms and a corner hole of the DAS The top and side views of these models are shown in Fig The unit cell contains a slab of ˚ five Si layers (200 Si atoms) and a *12 A vacuum layer The bottom of ... nanoscopic understanding of the chemical bonding in these systems in the determination of the atomic geometry and electronic structure A plane-wave method with the Vanderbilt ultrasoft pseudopotentials ... the middle between the H3 and B2 sites The change of the adsorption site of Ag atom because of the pre-adsorption of H on Si(111)-7 may be due to the reconstruction of Si surface electronic structures...
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Báo cáo hóa học: " Research Article Remarks on Sum of Products of h, q -Twisted Euler Polynomials and Numbers" potx
Ngày tải lên :
22/06/2014, 18:20
... sums of products of h, q -extension of Euler polynomials and numbers In this section, we prove main theorems related to the complete sums of products of h, q extension of Euler polynomials and ... polynomials and numbers Here, we study on higher-order twisted h, q -Euler polynomials and numbers and complete sums of products of these polynomials and numbers, our method is similar to that of 11 ... He gave a different proof of complete sums of products of higher order q-Bernoulli polynomials In 21 , Jang et al gave complete sums of products of Bernoulli polynomials and Frobenious Euler polynomials...
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Báo cáo hóa học: " Robust Transmission of H.264/AVC Streams Using Adaptive Group Slicing and Unequal Error Protection" pptx
Ngày tải lên :
22/06/2014, 23:20
... two standard QCIF sequences Foreman and Carphone, coded at 10 frame/s (fps), and the CIF sequence Paris, coded at 30 fps Group of pictures (GOPs) of IPPP structure consisting of 100 and 300 ... packet exchanges in case of three slice groups where Kl and Nl are the number of source and RS packets of the lth slice group Pl (i) is the packet error probability of lth slice group It is defined ... International Standard ISO/IEC FDIS 14 496-10, 2003 [2] T Wiegand, G J Sullivan, G Bjntegaard, and A Luthra, “Overview of the H.264/AVC video coding standard,” IEEE Transaction Circuits and Systems...
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