The use of composite materials is an effective technique to enhance the capacity of reinforced concrete columns subjected to the seismic loading due to their high tensile strength. In this paper, numerical models are developed in order to predict the experimental behavior of square reinforced concrete columns strengthened by glass fiber reinforced polymer and steel bars and unstrengthened colum...

The effect of adenosine-3',5'-cyclic monophosphate (cyclic AMP) and N(6),O(2)-dibutyryl adenosine-3',5'-cyclic monophosphate (dibutyryl cyclic AMP) on renal tubular permeability was studied by microinjection techniques in anesthetized diuretic rats. Radioactive inulin and mannitol were microinjected simultaneously into superficial proximal and distal convolutions and recovery of the isotopes wa...

a bstract background: recent attempts have been focused on employing chemical and natural supplemental agents for treatment of cyclic mastalgia. among various agents, the potential effects of vitamins remain questionable. in the present study, we examined the efficacy of two types of these vitamin supplements (vitamin e and vitamin b6) in improving pain severity in cyclic mastalgia.   materials...

Cyclic codes are an important subclass of linear codes and have wide applications in data storage systems, communication systems and consumer electronics. In this paper, two families of optimal ternary cyclic codes are presented. The first family of cyclic codes has parameters [3m−1,3m−1−2m,4] and contains a class of conjectured cyclic codes and several new classes of optimal cyclic codes. The ...

A pheochromocytoma was maintained in rats from the New England Deaconess Hospital by giving the rats s.c. injections of isolated tumor cells. The animals were sac rificed 3 to 4 weeks after transplantation, the tumors were excised, and purified tumor cells were prepared. Cyclic nucleotide phosphodiesterase of the purified tumor cells was characterized and compared with that of the adrenal medul...

A low K,,, guanosine 3’:5’-monophosphate (cyclic GMP)specific phosphodiesterase was purified about 250-fold from crude extracts of the guinea pig lung by steps of DEAEcellulose chromatography, hydroxylapatite treatment, and preparatory polyacrylamide gel electrophoresis. Analytical gel electrophoresis revealed two protein bands, indicating that the enzyme preparation was about 50% homogeneous. ...

Transmural stimulation of, or application of nicotine to, the isolated rabbit sinoatrial (SA) node resulted in initial negative and late positive chronotropy. Simultaneous application of acetylcholine and norepinephrine produced a similar biphasic chronotropic effect. These procedures produced an initial increase in cyclic guanosine 3':5'-monophosphate (cyclic GMP) and a delayed elevation in cy...

a finite group g is said to be a pos-group if for each x in g the cardinality of the set {y in g | o(y) = o(x)} is a divisor of the order of g. in this paper we study the structure of pos-groups with some cyclic sylow subgroups.

a finite group g is said to be a pos-group if for each x in g the cardinality of the set {y in g | o(y) = o(x)} is a divisor of the order of g. in this paper we study the structure of pos-groups with some cyclic sylow subgroups.