Microwave assisted cross-coupling reactions using palladium nanoparticles in aqueous media

<p>Glucose stabilized palladium nanoparticles (PdNPs) have been prepared and the application of NPs in catalyzing both Suzuki and Heck reactions has been explored in aqueous media under microwave conditions. Both electron-rich and electron-deficient aryl halides can be coupled with a variety of boronic acids and styrene to access a wide variety of biaryl compounds and substituted alkenes in good to excellent yields. The catalyst can be recycled and reused four times with minimally affecting the morphology and efficiency of the nanoparticles. A plausible reaction mechanism has been proposed.</p

Farmer Interest Groups: Paving Its Path Towards Profitability

The current study entailed to ascertain the role that Farmers' Interest Groups played in knowledge transfer as well as in increasing agricultural production, productivity, and in turn leading to profitability for the farm sector in the Boudh district of Odisha. For the impact assessment, six FIGs from a range of villages in the Boudh district, including Baghiapada, Saleising, and Palijhar, were randomly selected. The results of this study depicted that member of Farmer Interest Groups adopted scientific agricultural practices and goatery technologies at a greater mean rate (80.63 MPS and 79.63 MPS, respectively) than non-members (59.12 MPS and 60.12 MPS). The aggregate differences in the adoption of crop and goatery farming technology between FIG members and non-members were calculated to be 21.5 and 19.5 MPS, respectively. It was also found that the crop and goatery production under FIG produced a higher yield than the agricultural practices now employed by farmers. The members became more active in meetings and the adoption of new and scientific farm and goatery technology after learning about the benefits of the FIGs. In addition to enhancing agriculture and animal production, this will also benefit the socioeconomic conditions of the farming community

Farmer Interest Groups: Paving Its Path Towards Profitability

The current study entailed to ascertain the role that Farmers' Interest Groups played in knowledge transfer as well as in increasing agricultural production, productivity, and in turn leading to profitability for the farm sector in the Boudh district of Odisha. For the impact assessment, six FIGs from a range of villages in the Boudh district, including Baghiapada, Saleising, and Palijhar, were randomly selected. The results of this study depicted that member of Farmer Interest Groups adopted scientific agricultural practices and goatery technologies at a greater mean rate (80.63 MPS and 79.63 MPS, respectively) than non-members (59.12 MPS and 60.12 MPS). The aggregate differences in the adoption of crop and goatery farming technology between FIG members and non-members were calculated to be 21.5 and 19.5 MPS, respectively. It was also found that the crop and goatery production under FIG produced a higher yield than the agricultural practices now employed by farmers.&nbsp; The members became more active in meetings and the adoption of new and scientific farm and goatery technology after learning about the benefits of the FIGs. In addition to enhancing agriculture and animal production, this will also benefit the socioeconomic conditions of the farming community

Transcript degradation and noise of small RNA-controlled genes in a switch activated network in Escherichia coli

Post-transcriptional regulatory processes may change transcript levels and affect cell-to-cell variability or noise. We study small-RNA downregulation to elucidate its effects on noise in the iron homeostasis network of Escherichia coli. In this network, the small-RNA RyhB undergoes stoichiometric degradation with the transcripts of target genes in response to iron stress. Using single-molecule fluorescence in situ hybridization, we measured transcript numbers of the RyhB-regulated genes sodB and fumA in individual cells as a function of iron deprivation. We observed a monotonic increase of noise with iron stress but no evidence of theoretically predicted, enhanced stoichiometric fluctuations in transcript numbers, nor of bistable behavior in transcript distributions. Direct detection of RyhB in individual cells shows that its noise is much smaller than that of these two targets, when RyhB production is significant. A generalized two-state model of bursty transcription that neglects RyhB fluctuations describes quantitatively the dependence of noise and transcript distributions on iron deprivation, enabling extraction of in vivo RyhB-mediated transcript degradation rates. The transcripts' threshold-linear behavior indicates that the effective in vivo interaction strength between RyhB and its two target transcripts is comparable. Strikingly, the bacterial cell response exhibits Furdependent, switch-like activation instead of a graded response to iron deprivation.Israel Science Foundation [514415 to J.S.]; Feinberg Foundation Visiting Faculty Program ( to J.M.-G.); MICINN (Spain) [FIS2012-32349 to J.M.-G.]; Intramural Research Program of the National Institutes of Health (to D.L.C.); National Cancer Institute (to D.L.C.); Center for Cancer Research (to D.L.C.); Siegfried and Irma Ullman Professorial Chair ( to J. S.). Funding for open access charge: Israel Science Foundation