Modern real-time applications are very dynamic and cannot cope with using worst-case workload. Therefore scheduling algorithms able to deal with overload situations are required. In this context the Value-Based Scheduling theory has become useful to add flexibility to such systems. This paper presents a comparative study among different real-time schedulers during overload, including traditiona...

Safferman, Robert S. (Robert A. Taft Sanitary Engineering Center, Cincinnati, Ohio), and Mary-Ellen Morris. Growth characteristics of the blue-green algal virus LPP- 1. J. Bacteriol. 88:771-775. 1964.-The blue-green algal (BGA) virus, strain LPP-1, formed two distinct plaque variants. During subsequent propagation, each of the isolated variants eventually reverted to a mixture of both plaque ty...

A quantitative structure-activity relationship approach was used to investigate the mutagenicity of a series of seventeen-monosubstituted propylene oxides in Salmonella typhimurium strains TA100 and TA1535. Mutagenicity in strain TA100, using a liquid suspension assay, was found to correlate with chemical reactivity, as measured by the rates of reaction with two model bionucleophiles, nicotinam...

We investigate the coradical filtration of pointed coalgebras. First, we generalize a theorem of Taft and Wilson using techniques developed by Radford in [Rad78] and [Rad82]. We then look at the coradical filtration of duals of inseparable field extensions L∗ upon extension of the base field K, where K ⊆ L is a field extension. We reduce the problem to the case that the field extension is purel...

A novel series of the title compound 4-(5-arylazo-2-hydroxystyryl)-1-methylpyridinium iodide 6 has been synthesized via condensation reactions of the arylazosalicylaldehyde derivatives 4a-i with 1-methyl-picolinium iodide 5. The structures of the new arylazo compounds were characterized by ¹H NMR, IR, mass spectroscopy, as well as spectral and elemental analyses. The electronic absorption spect...

Arylation reactions are an important class of and allow the synthesis natural synthetic products. Despite efficient, but high cost toxic methodologies involving transition metals, radical arylations have gained importance after advent photoredox catalysis. enol acetates is tool for obtaining aryl ketones scope reaction limited to pattern substitution at phenyl α-carbon enol. Theoretical calcula...

A series of twelve dyes based on the 4,4-bis(4-methoxyphenyl)butadienyl donor and differing by electron acceptors have been designed synthesized. The different were characterized UV–visible absorption spectroscopy as well cyclic voltammetry. By fine tuning electron-accepting ability fourteen selected acceptors, absorbing between 400 650 nm could be obtained with this ?-extended donor. To get a ...

A convenient and efficient approach toward the synthesis of seven aromatically substituted xanthendiones (1?7) one structurally-related xanthenone (8) through condensation dimedone appropriate aromatic aldehyde is reported. Further, their chemical structure was confirmed by melting points, elemental analysis, FT-IR, 1H, 13C NMR UV-Vis spectroscopic methods. The relationship between pharmacologi...