Boxma and Groenendijk obtain the pseudo-conservation laws for cyclic server systems, for both the continuous-t ime system with simple Poisson arrivals, and for the discrete-time system. We extend these laws to the continuous-t ime cyclic server system with compound Poisson arrivals. In the process we identify an error in Boxma and Groenendijk 's analysis of the semi-exhaustive service strategy ...

A novel class of azo-guanidine compounds is introduced in this article. The novel compound 2-(2-hydroxyphenyl)-1-(phenylamino)-3-(phenylimino)guanidine (AG) was synthesized and well characterized by using different analytical instrumental techniques like elemental analysis, FTIR, (1)H and (13)C NMR, UV-Visible spectroscopy and cyclic voltammetry. The new compound was found interacting with DNA ...

The natural compound thymoquinone, extracted from Nigella sativa (black cumin), is widely used in humans for its anti-oxidative properties. Thymoquinone is known for its acute endothelium-independent vasodilator effects in isolated rat aortae and pulmonary arteries, depending in part on activation of adenosine triphosphate-sensitive potassium channels and inhibition of voltage-dependent calcium...

Two thioacetate tails were introduced to the chlamydocin- and CHAP31-related cyclic tetrapeptides. An intramolecular disulfide bridge could be formed in the CHAP31-related cyclic peptides. Both the thioacetate-tailed and disulfide-bridged peptides were potent histone deacetylase inhibitors in the presence of sulfhydryl compound. Potent p21 promoter inducing activity was also observed in vivo.

The title compound, C(46)H(24)F(12)O(8)·C(4)H(8)O, consists of a cyclic aryl ester dimer and a tetra-hydro-furan mol-ecule. In the structure of the cyclic dimer, one carbonyl group stretches above the cavity and the other below.

MS-282a and MS-282b were isolated from the culture broth of Streptomyces tauricus ATCC 27470 as inhibitors of smooth muscle myosin light chain kinase (MLCK). MS-282a and MS-282b inhibited the activity of chicken gizzard MLCK with IC50 values of 3.8 microM and 5.2 microM, respectively. Cyclic AMP-dependent protein kinase, cyclic GMP-dependent protein kinase and protein kinase C were not inhibite...

In this paper, a class of shortened cyclic codes for a compound channel will be presented. This class of cyclic codes can be used for combating noises in a practical channel, where both burst errors and random errors occur. As compared with the results of a previous paper by Hsu, Kasami, and Chien (1968) (henceforward will be referred to as HKC codes), the shortened cyclic codes presented will ...

Appreciable amounts of inositol 1,2-cyclic 4,5-trisphosphate (cIP3) are formed on agonist stimulation of secretory cells, e.g., pancreas (1,2) and parotid (3,4). However, the physiological role of this compound is unknown. To obtain sufficient amounts of cIP3, we have developed a synthetic method to produce cIP3 from inositol 1,4,5-trisphosphate (I(1,4,5)P3). The method is an adaptation of the ...