role of communication in agricultural development in nigeria

... growth from the second quarter of 2000 into job classes using beginning size of firm, mean size of firm over the period, and end size of firm. If the beginning size of the firm is used to classify firms, ... longitudinal data from individual firms. 4 The job figures presented in Chart 1 classify firms into size classes based on their size at the beginning of the period, which favors a finding of higher ... rate in the prerecession period from 1997 to 2000. Recessions often find individuals moving out of traditional employment and into self-employment, which explains some of the discrepancy in growth...

Ngày tải lên: 06/03/2014, 19:20

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Ngày tải lên: 18/06/2014, 17:20

... disease prevention, e.g., lycopene in tomatoes and sulfurofane in broccoli for reduc- ing cancer risk, lutein in vegetables for reducing risk of macular degenera- tion, etc. The advancing Þelds of human and plant ... Advantages of insect- and virus-resistant crops include improved yields and reduced use of pesticides. An additional beneÞt of Bt corn is reduced contamination by fumonisin-producing fungi. Fumonisin ... consumed in place of saturated fatty acids. It is possible to increase the content of vitamin E, a natural antioxidant, and to insert the capability of producing plant-based omega-3 fatty acids into...

Ngày tải lên: 25/10/2013, 21:20

... complexes of cyclin-dependent kinases (cdks) and their corresponding cyclins. A prominent example of such a pair is cyclin B and cyclin-dependent kinase 1 (cdk1 ⁄ Cdc2) controlling the checkpoint between ... Dimethyl sulfate footprint- ing of the CDE in the presence of SV40 large T indi- cated a loss of protein occupation on this site in vivo [79].Elevated expression of cyclin A, cyclin B, Cdc25C and Cdc2 ... repression of genes, such as cyclin A and cyclin B1, in dividing cells [92]. Furthermore, depletion of Lin-9 and B-Myb in p53 ) ⁄ ) MEFs caused lowered expression of cyclin A, cyclin B and Cdc2 [94]. In...

Ngày tải lên: 16/02/2014, 09:20

... role for GTP activation of CTP synthesis. A mechanism in which GTP only acts to increase the rate of hydrolysis of glutamine has some flaws in explaining the inhibition of DON-labeledenzymewhenassayedwithNH 4 Cl ... the binding of GTP to the allosteric site promotes coordination of the phosphorylation of UTP and hydrolysis of glutamine for optimal efficiency in CTP synthesis rather than just acting to increase ... of the enzyme will not interfere with the interpretation of the data. In this research, we have analyzed the steady state kinetics of the glutaminase reaction of CTP synthase from L. lactis in...

Ngày tải lên: 21/02/2014, 15:20

... tyrosinase 320 amino acids Core domain 36–357 Copper binding motif Arg40 Cys84 Tyr349 Tyr347 Copper binding motif Trypsinisedpro-tyrosinase 332 amino acids Core domain 36–370 Copper binding ... motif Arg40 Cys84 Tyr349 Tyr347 Lys370 Ala36 Ala36 Ala36 Val357 Phe518 B Laccase Tyrosinase β -sheet protein Fig. 1. Overview of the tyrosinase gene and surrounding genes in the genome of V. spinosum. (A) Showing the tyrosinase gene and those in its immediate vicinity in the ... kDa) assuming the removal of the N-terminal methionine. Reconstitution of recombinat V. spinosum tyrosinase with copper The holo-forms of tyrosinase were obtained after puri- fication by adding copper...

Ngày tải lên: 06/03/2014, 11:20

... value determined from the amino acid sequence (45 320 Da). Measurement of the K d of PLP binding equilibrium PLP binding equilibria were analyzed taking advantage of the protein intrinsic fluorescence ... are located in the cores of the large and small domains, respectively, and appear to stabilize their protein scaf- folds, allowing the proper positioning of the residues involved in PLP binding, substrate ... binding properties The affinity of wild-type and mutant forms for the cofactor was measured to evaluate the impact of the mutations on the structure of the PLP binding site. Because PLP binding...

Ngày tải lên: 07/03/2014, 03:20

... sufficient for inducing activation of GS in muscle and fat cells, and that inhibition of the kinase potentiates insulin action in muscle of insulin-resistant rats [39], and that prolonged GSK3 inhibition ... inhibition improves insulin responsiveness in muscle of insulin resistant animals it had no insulin potentiating effect in skeletal muscle of lean animals [39,41]. To assess whether chronic inhibition ... effective ÔchannellingÕ of glucose into glycogen in response to insulin. However, one of the potential difficulties in interpreting data from studies that utilize Li as an inhibitor of GSK3 is that...

Ngày tải lên: 08/03/2014, 08:20

... area of an image for speech information. Following a speech- reading experiment using eye-tracking equipment with native speakers of English, Lansing and McConkie (1999) suggested that in terms of ... 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 ... in a large room or hall to a large group of people, pointing out that in such circumstances visual cues would be of little to no value. This is a very specific interpretation of the meaning of...

Ngày tải lên: 10/03/2014, 05:20

... the purification of an AnfA variant reported by Austin et al. [22]. In their study, the N-terminal domain of AnfA was truncated to prevent the intrinsic aggrega- tion of the intact form during purification. ... of the N-terminal domain in this variant. Because sensing is a principal function of regulatory proteins, the isolation of VnfA and AnfA with their sensor (GAF) domains is highly desirable. In ... effect of the nucleotide binding was reported in a study of the limited trypsin digestion with NifA + MgADP, in which binding MgADP to the central AAA+ domain is ascribed to the trigger of a conformational...

Ngày tải lên: 15/03/2014, 09:20

... 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 ... wholesale lending to microfinance institutions for lending to their micro borrowers. Savings banks could refinance well-functioning microfinance institutions individually or indirectly through ... sprung 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...

Ngày tải lên: 15/03/2014, 10:20

... modified serine [22]. PfACP is a protein of 137 residues, inclusive of signal and transit sequences, required for targeting of the protein to the apicoplast. The mature protein com- prises 79 amino acids ... available online: Doc. S1. Crosslinking using glutaraldehyde. Fig. S1. Oligomeric status of PfACP determined by glutaraldehyde crosslinking. This material is available as part of the online article from ... thrombin cleavage site was engineered in the pET28a vector immediately after the N-terminal His-tag. The N-terminus His-tag of ACP was cleaved by the addition of 1 U of thrombin from bovine plasma...

Ngày tải lên: 16/03/2014, 10:20

... C6 position of glycogen in the ADM group is indicative of activated 6-phosphofructo-1-kinase, which can lead to increased 13 C labeling at the triose level. Such a mechanism can lead to increases in labeling ... Regulation of hepatic carbohydrate metabolism in mouse liver (Eur. J. Biochem. 269) 4425 Elucidation of the role of fructose 2,6-bisphosphate in the regulation of glucose fluxes in mice using in vivo 13 C ... 2002 roles of insulin and glucagon in the regulation of hepatic glycogen synthesis and turnover in humans. J. Clin. Invest. 97, 642–648. 21. Petersen, K.F., Laurent, D., Rothman, D.L., Cline,...

Ngày tải lên: 17/03/2014, 17:20

... may in uence the shape and volume of the acyl binding pocket and thereby alter the binding mode and affinity of the enzyme for PAA and derivatives thereof, while maintaining the hydrophobicity of ... quantities of protein utilizing the principle of protein dye binding. Anal. Biochem. 72, 248–254. 11. Kasche, V., Haufler, U. & Zollner, R. (1984) Kinetic studies on the mechanism of the penicillin ... maintaining the structure of the binding site given the short distances of 3.5 A ˚ and 3.9 A ˚ between bF57(CZ) and the substrate binding residues bP22(CB) and bF24(CE2), respectively. Changing...

Ngày tải lên: 17/03/2014, 23:20

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