Báo cáo khoa học: Macromolecular NMR spectroscopy for the non-spectroscopist: beyond macromolecular solution structure determination potx

... to the iron and positioned to provide the H-bond to the bound cyanide, and by implication, to the bound O 2 in the reduced form in each of the three globins. The extensive sequence homology for ... (1996) Solution 1 H NMR structure of the heme cavity in the low-affinity state for the allosteric monomeric cyano-met hemoglobins from Chironomus thummi thummi. Comparis...

Ngày tải lên: 23/03/2014, 17:22

... an explanation for hydroxylation at C22 rather than C23. More likely, the difference in reported structures is associated with the collection and interpretation of the NMR data. Their spectra were ... responsible for the content or functionality of any supplementary materials supplied by the authors. Any queries (other than missing material) should be directed to the corre-...

Ngày tải lên: 18/02/2014, 17:20

... 1996), incorporating information gained from the textual context of the candidate term. 2 Context information for terms The idea of incorporating context information for term extraction came ... word units in that they cannot be freely modified" (Sager, 1978). Therefore, information from the modifiers of the candidate strings could be used in the pro- cedure of t...

Ngày tải lên: 22/02/2014, 03:20

... impact on the level of the MscL–HA complex, suggesting that the Sec tran- slocon is dispensable for the oligomerization of the MscL subunits. Discussion We have analysed the requirements for targeting, membrane ... distance to the plane of the lipid bilayer. In contrast, position 68, which was used in the earlier study [13], is located adjacent to the centre of the p...

Ngày tải lên: 07/03/2014, 02:20

... columns. For example, 0010011 is defined as a token for the Cyrillic letter Й. The symbols circled in the "Lower Case" column are the normal correspondents of the tokens. For example, ... defined as a token for Й in the ranked code, it is nor- mally a token for the semi-colon. Therefore, since the output equipment has not been modi- fied, Cyrillic ma...

Ngày tải lên: 07/03/2014, 18:20

... encountered, the program specifies the truth values of the variables in D r for the given values of i and j. The program then evaluates the truth value of D r in terms of the truth values of the ... lectively incrementing the X k and Y k registers. C. THE OPERATION OF THE FORMULA SYNTHESIZER The input to the final machine program shown in Fig. 4, called f...

Ngày tải lên: 16/03/2014, 19:20

... that the summary is useless. The issue is, therefore, how to find informative metrics, and then how to combine them into an op- timal single quality estimation for automatic sum- maries. The most ... that breaks the universal quantifier condition over x. We have to look, then, for an alternative for- mulation for K. The best K should minimise QUEEN(a), but having the quality...

Ngày tải lên: 17/03/2014, 05:20

... is the data and their selection (including the selection of the way they are auto- matically tagged) that makes all the difference. The following “parameters” of the (unsuper- vised part of the) ... annotated data for the esti- mation of the weight coefficients α. The train- ing algorithm is very simple—only integer num- bers (counts and their sums for the averaging) a...

Ngày tải lên: 17/03/2014, 22:20

... distance from an attribute to the structure exceeds the distance from the head to the structure, and in exocentric structures that the distances from each constituent to the structure are equal. Representations ... an analysis of the written form. This determination depends upon the ability to deter- mine the number of graphic syllables in the word. It is nat...

Ngày tải lên: 23/03/2014, 13:20

... are responsible (among other factors) for the behaviour of the system during the dialogue. The Describer also defines different "squeletons" for the rest of the modules of the application, ... of the Kernel. The Linguistic Kernel contains the independent knowledge of the system, related to the dialogue management. The rest of the configurable modules...

Ngày tải lên: 24/03/2014, 03:20