the role of transportation and communication in national development

... be built, maintained and accessed using these techniques. 8.1. Emulating Operating System Environments During the 1960’s the notion of a virtual machine base for operating systems development ... outperform 4.3bsd in several benchmarks of overall system performance [1]. A key and unusual element in the design of Mach is the notion that communication (in the form of message passing) and virtual ... validation - Finally, the kernel informs the hardware physical map module of the new virtual to physical mapping. With the exception of the hardware validation, all of these steps are implemented in a...

Ngày tải lên: 12/09/2012, 15:05

... accumulating school savings may have effects apart from financing school. Conley (2001) finds that a doubling of net worth results in an 8.3% increase in the probability of attending college. Further, ... for their youth. Youth savings. Youth were asked in 2002 whether they had a savings or bank account in their name. If they had an account, they were also asked whether they were saving some of ... None of the existing research examines the effect of youth savings on college attendance, and only one study examines the relationship between parent school savings and college attendance. Theoretical...

Ngày tải lên: 15/03/2014, 10:20

... suggested by the lack of coincidence of the changes in relative fluorescence intensity and in  k and by the hysteresis of the reversibility process (Fig. 4). At the end of the transition, the intrinsic ... that of the wild-type; however, the integrity of the calcium bind- ing site formed by Asp287 and Glu53 is essential for interaction with the cation in 7.9 m GdmCl. An interesting finding of the ... observed for the wild-type, indicating the involvement of Glu53 and Asp287 in the interaction with the cation (Fig. 1E,F). The regain of aromatic chirality at 295 nm and in the 260–270 nm region for...

Ngày tải lên: 30/03/2014, 04:20

Ngày tải lên: 30/03/2014, 14:20

Ngày tải lên: 18/06/2014, 17:20

Ngày tải lên: 09/08/2014, 02:21

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Ngày tải lên: 13/08/2014, 13:20

... provided further insight into the molecular mechanism driving the formation of the covalent C115–fosfomycin adduct. A conservative exchange of K22 to arginine maintains fosfo- mycin binding, while ... in fosfomycin binding, and in view of the multitude of interactions, it was assumed that deletion of a single interaction would not lead to a complete loss of fosfomycin binding. Therefore it ... form of the protein. The results obtained with the K22V/R120K double mutant protein point toward a central role of arginine 120 in the conformational process occurring during catalysis. Therefore,...

Ngày tải lên: 19/02/2014, 13:20

... University Regional Learning Alliance – workforce development and training/collaborations with business and industry; meeting the training and education needs of businesses within 60 mile radius in Northern Allegheny ... Economic Development Programs and Initiatives Business accelerators and/ or entrepreneurial initiatives Linking teaching and research to business opportunities Collaboration with local business and industry Small ... business and industry/entrepreneurial activity; providing business development assistance The Role of Public Regional Universities in Community and Economic Development December 6, 2005 Indirect...

Ngày tải lên: 21/02/2014, 01:20

... recruiting large enterprises with tax breaks, financial incentives, and other induce- ments. Instead, they are relying on building businesses from the ground up and supporting the growth of existing ... well. They include constraints on the supply of labor and other inputs, upward pressure on wages and rents, congestion of infrastruc- ture, and (if fiscal incentives are provided to the locating ... to long chains of command and subsequent communication inefficiency , inflexibility , and loss of managerial coor dination. F ur ther , small firms, to the extent that they operate in more competitive...

Ngày tải lên: 06/03/2014, 19:20

... domain is one of the few ACPs in which valine replaces isoleucine (I) or leucine (L) in the conserved sequence. To determine whether DptF is the putative partner of DptE, we expressed dptF using ... dptF using the pQTev vector in E. coli and purified the resulting ACP as an N-terminal His7 fusion protein (Fig. 3) with a yield of 9.5 mgặL )1 of culture. The identity of the protein was proven ... [37]. Interestingly, in the case of the lipopeptide surfactin, neither an acyl CoASH ligase-like domain nor an ACP could be identified within the biosynthetic gene cluster using bioinformatic tools...

Ngày tải lên: 07/03/2014, 04:20

... OS-fitness of the clone, the ratio of the specic absorbance in the presence of 10 lgặmL )1 HEL to that in the absence of HEL was taken as an index. To analyze the effect of the type of each FR2 ... antigen in itself [7,20]. At least for these antibodies, the role of the V L domain might be to increase the affinity by supporting the V H domain. The phenomenon may also be observed in the chain ... correlation between the antigen- binding affinity and the V H ⁄ V L interaction, especially in the presence of a set of particular V L residues. The effect of the H39 mutation on the wild- type variable...

Ngày tải lên: 07/03/2014, 12:20

... & Lynch, K. (1999).Offeringa hand to pragmatic understanding: The role of speech and gesture in comprehension and memory. Journal of Memory and Language, 40, 577–592. Lansing, C. R., & McConkie, ... gestures and facial cues seeking the most infor- mative cue according to the content of the lecture. The results of the questionnaire revealed that the majority of those who reported they paid ... minimal reference to the outline during recording. The first part of the lecture covered definitions of terms and a brief history of ceramics, which tended to be done in narrative form. Most of...

Ngày tải lên: 10/03/2014, 05:20

... (1973) examined the frequency of all gift-giving occasions in the U.S and found that the most popular occasion is birthday (35 percent) and the second one is Christmas (29 percent). The other ... This finding is just reverse of the finding of Belk (1973). Ruth, Brunel, Otnes (1999) classified categories of gift-giving into public occasion (i.e., Christmas, Chinese New Year), individual ... of roles and statuses, not in the feeling-state of one or another type of personality” (p.6-7) Whereas sociological ambivalence in conceptualized as resulting from conflicting social roles...

Ngày tải lên: 14/03/2014, 14:20

... mainly individuals and small businesses, the traditional target client group of savings banks. By capturing and channelling more of the remittances into the financial system and intermediating ... out of the savings banks movement, have done a   Bringing the Hidden Giants to the Footlight: the Role of Savings and Retail Banks in Increasing the Level of Access to Financial Services Chris ... for disbursing of loans and collecting loan repayments. Another promising track for savings banks is to invest their savings deposits in microfinance institutions by specialising  in wholesale...

Ngày tải lên: 15/03/2014, 10:20

... documents and find that the fea- ture vectors corresponding to some of these docu- ments (particularly the short ones) have all zeroes in them. In other words, none of the bigrams from the training ... one in which the author himself likes the movie, and in the other, the author’s cousin likes the movie. The over- generalization resulting from these “stemmed” re- lations renders dependency information ... processing techniques. In Proc. of the IEEE International Conference on Data Min- ing (ICDM). H. Yu and V. Hatzivassiloglou. 2003. Towards answer- ing opinion questions: Separating facts from opinions...

Ngày tải lên: 17/03/2014, 04:20

... bridging the A’ and G b-strands of the I27 protein during the main unfold- ing barrier. [39] To further validate this view and gain insight into the role of solvent hydrogen bonds in protein unfolding, ... rapidly, causing the unfolding of one of the I27 modules in the chain. Unfolding then extends the over- all length of the protein, relaxing the pulling force to a low value. As the slack in the length ... Snapshot of the b-strands A’ and G of the I27 protein showing the protein backbone only for simplicity. C) Snapshot of the b- strands A’ and G of the I27 protein showing 4 D 2 O molecules bridging the protein...

Ngày tải lên: 22/03/2014, 18:20

... (glycero-)sphingolipids. In addition the fatty acid chains of the phospholipids composing these rigid domains are generally more saturated than those in the lipids of the surrounding membrane. In fact, this ... cluster in response to extracellular stimuli and the size of the domains containing those clusters has been estimated. In summary, multiple lines of evidence have helped to argue in favour of the ... carefully. Isolation of lipid rafts ⁄ caveolae is very often the first step in the biochemical analysis of the role of these domains in cellular signalling. After disruption of cells, lipid rafts...

Ngày tải lên: 30/03/2014, 02:20

... many levels, such as preventing the injury event in the first place (e.g., avoiding drinking and driving, removing hazards in the home), preventing or minimizing injury after an event has occurred ... training by offering continuing education credits. ã Include child injury prevention into minimum standards for competency for selected credentialing, licensing, and certification in health and ... injury prevention information in health, education, and safety professionals training by offering continuing education credits. ã Include child injury prevention into minimum standards for competency...

Ngày tải lên: 30/03/2014, 03:20