Traditionally computer algebra systems use lines and polygons to represent mathematical func tions graphically While these geometric primitives can easily be rendered on conventional raster graphics hardware a smooth representation using splines would provide a wider range of trade o s between image quality and rendering performance Since modern computer graphics hardware directly supports rend...

Several lines of evidence have suggested, but not proved, that polyamines are associated with DMA in intact cells. In an attempt to investigate the roles of polyamines in gene-associated func tions, we examined the effects of polyamine depletion on the spontaneous mutation rate in a rat basophilic leukemia cell line. The frequency of 6-thioguanine-resistant mutant cells increased by approximate...

Although previous studies have shown that the time required to process visual stimuli,in' ".".r"r fo"r presentations away from the fovea, the evidence concerning the exact nature of this increase is inconclusive. Three experiments were conducted using both reaction time and tachis' toscopic masking tasks to gene"ale timeaccuracy functions for stimuli at different retinal loca' tions.-eU resulti...

In this paper we propose a method for wavelet ltering of noisy signals when prior information about the L energy of the signal of interest is available Assuming the independence model according to which the wavelet coe cients are treated individually we propose a level dependent shrinkage rule that turns out to be the minimax rule for a suitable class say of realistic priors on the wavelet coe ...

A descript ion is give n of apparatus employing a ce ll that is both a bellows dilatometer and a threeterminal elec t rode se t for measuring simu ltaneous ly the d e nsity and diel ec tri c properties of liquids as func tions of temperature and pressure . Measurement s are possible at temperatures from .1 20 oK to over 300 oK and pressures from 1 to 2000 atm with an uncertainty of 0.03 percent...

The membrane fatty acid composition of cancer cells can be modified either in culture or during growth in animals without disrupting basic membrane or cellular integrity. Only fatty acids are affected; no changes occur in membrane cholesterol, phospholipid, or protein content. There are changes in membrane physical properties and certain cellular func tions, including carrier-mediated transport...

Artificial bee colony algorithm (ABC) developed by inspiring the foraging phenomena of natural honey bees is a simple and powerful metaheuristic optimization algorithm. The performance single objective ABC has been well demonstrated implemented to different design problems from elec-trical mechanical civil engineering. Its efficacy anticipated in multi-objective multilayer microwave dielectric ...

Ab stract Adopt ing a ma te ri al ist ap proach to the mind has far reach ing im pli ca tions for many pre sup po si tions re gard ing the prop er ties of the brain, in clud ing those that have tra di tion ally been con signed to “the men tal” as pect of hu man be ing. One such pre sup po si tion is the con cep tion of the dis em bod ied self. In this ar ti cle we aim to ac count for the self a...

AIM This study aimed to investigate the effects of folinic acid and fluorouracil (bolus FUFA regimen) chemotherapy on right ventricle (RV) functions. MATERIALS AND METHODS Thirty-four gastrointestinal (GI) cancer patients treated with antineoplastic drugs were included the study. All participants received FUFA chemotherapy protocol for colorectal, gastric and pancreatic cancer (i.e. fluoroura...