78 research outputs found
Automatització: muntatge i programació d’un ascensor
No full textTreball de recerca realitzat per alumnes d’ensenyament secundari i guardonat amb un Premi CIRIT per fomentar l'esperit científic del Jovent l’any 2010. L’objectiu principal del treball era estudiar el concepte de programació per poder muntar un ascensor i fer-lo funcionar mitjançant un xip microcontrolador com el PICAXE
Synthesis of isoxazolidine-substituted bisphosphonates by 1,3-dipolar cycloaddition reactions
No full textSynthesis of a novel class of gem-phosphonate-phosphates by reductive cleavage of the isoxazolidine ring
No full textA new series of gem-phosphonate-phosphates bearing N-alkyl groups and aromatic substituents has been prepared by reductive cleavage of the isoxazolidine ring with metal carbonyls, using the gem-phosphonate-phosphate rearrangemen
Efficient synthesis of isoxazolidine-substituted bisphosphonates by 1,3-dipolar cycloaddition reactions
No full textSeveral bisphosphonates bearing a substituted isoxazolidine ring have been synthesized in good yield by direct 1,3-dipolar cyclization reaction, under microwaves catalysis, in the absence of solvent. The method allows the simultaneous incorporation, on the geminal position of the bisphosphonate framework, of a basic nitrogen and of an oxygen atom, as third hook. Hydrophobicity-hydrophilicity of BPs is discussed with the help of distribution coefficients. © 2011 Elsevier Ltd
Efficient synthesis of isoxazolidine-substituted bisphosphonates by 1,3-dipolar cycloaddition reactions
No full textSeveral bisphosphonates bearing a substituted isoxazolidine ring have been synthesized in good yield by direct 1,3-dipolar cyclization reaction, under microwaves catalysis, in the absence of solvent. The method allows the simultaneous incorporation, on the geminal position of the bisphosphonate framework, of a basic nitrogen and of an oxygen atom, as third hook. Hydrophobicity-hydrophilicity of BPs is discussed with the help of distribution coefficients. © 2011 Elsevier Ltd
Fig. 1 in Limonoid biosynthesis 3: Functional characterization of crucial genes involved in neem limonoid biosynthesis
No full textFig. 1. Limonoid biosynthesis in neem. Tirucalla-7,24-dien-3β-ol involves in neem limonoid biosynthesis.Published as part of <i>Pandreka, Avinash, Chaya, Patil S., Kumar, Ashish, Aarthy, Thiagarayaselvam, Mulani, Fayaj A., Bhagyashree, Date D., B, Shilpashree H., Jennifer, Cheruvathur, Ponnusamy, Sudha, Nagegowda, Dinesh & Thulasiram, Hirekodathakallu V., 2021, Limonoid biosynthesis 3: Functional characterization of crucial genes involved in neem limonoid biosynthesis, pp. 1-12 in Phytochemistry (112669) 184</i> on page 2, DOI: 10.1016/j.phytochem.2021.112669, <a href="http://zenodo.org/record/10126978">http://zenodo.org/record/10126978</a>
Fig. 2 in Limonoid biosynthesis 3: Functional characterization of crucial genes involved in neem limonoid biosynthesis
No full textFig. 2. Heat map for the RPKM values of transcripts which involved in isopreniod biosynthesis. Triterpenoid biosynthesis related genes were highly expressed in kernel and pericarp, which is in line with total triterpenoid profiling.Published as part of <i>Pandreka, Avinash, Chaya, Patil S., Kumar, Ashish, Aarthy, Thiagarayaselvam, Mulani, Fayaj A., Bhagyashree, Date D., B, Shilpashree H., Jennifer, Cheruvathur, Ponnusamy, Sudha, Nagegowda, Dinesh & Thulasiram, Hirekodathakallu V., 2021, Limonoid biosynthesis 3: Functional characterization of crucial genes involved in neem limonoid biosynthesis, pp. 1-12 in Phytochemistry (112669) 184</i> on page 4, DOI: 10.1016/j.phytochem.2021.112669, <a href="http://zenodo.org/record/10126978">http://zenodo.org/record/10126978</a>
Fig. 3 in Limonoid biosynthesis 3: Functional characterization of crucial genes involved in neem limonoid biosynthesis
No full textFig. 3. Phylogenetic analysis of neem triterpene synthases. Black colour represent the protosteryl cation, red colour representation for dammarenyl cation, green colour represents form luponyl cation, blue colour for multi-product forming and violet colour represents for germannyl cation stabilizing triterpene synthases. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)Published as part of <i>Pandreka, Avinash, Chaya, Patil S., Kumar, Ashish, Aarthy, Thiagarayaselvam, Mulani, Fayaj A., Bhagyashree, Date D., B, Shilpashree H., Jennifer, Cheruvathur, Ponnusamy, Sudha, Nagegowda, Dinesh & Thulasiram, Hirekodathakallu V., 2021, Limonoid biosynthesis 3: Functional characterization of crucial genes involved in neem limonoid biosynthesis, pp. 1-12 in Phytochemistry (112669) 184</i> on page 5, DOI: 10.1016/j.phytochem.2021.112669, <a href="http://zenodo.org/record/10126978">http://zenodo.org/record/10126978</a>
Turbulent Firms, Turbulent Wages?
No full textHas greater turbulence among firms fueled rising wage instability in the U.S.? Gottschalk and Moffitt ([1994]) find that rising earnings instability was responsible for one third to one half of the rise in wage inequality during the 1980s. These growing transitory fluctuations remain largely unexplained. To help fill this gap, this paper further documents the recent rise in transitory fluctuations in compensation and investigates its linkage to the concurrent rise in volatility of firm performance documented by Comin and Mulani [2005] among others. After examining models that explain the relationship between firm and wage volatility, we investigate the linkage in three complementary panel data sets, each with its own virtues and limitations: the Panel Study of Income Dynamics (detailed information on workers, but no information on employers), COMPUSTAT (detailed firm information, but only average wage and employment levels about workers), and the Federal Reserve Bank of Cleveland's Community Salary Survey (wages and employment for specific occupations for identified firms). We find complementary support for the hypothesis in all three data sets. We can rule out straightforward compositional churning as an explanation for the link to firm performance in high-frequency (over spans of 5 years) wage volatility, although not in more persistent fluctuations (between successive 5-year averages). We conclude that the rise in firm turbulence explains about sixty percent of the recent the rise in the high frequency (5-year) volatility of wages.
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