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...

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...

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 ...

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 ...

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...

A simple and effective method for the preparation of platinum nanoparticles (Pt NPs) grown on amino-func‐ tionalized halloysite nanotubes (HNTs) was developed. The nanostructures were synthesized through the func‐ tionalization of the HNTs, followed by an in situ approach to generate Pt NPs with diameter of approximately 1.5 nm within the entire HNTs. The synthesis process, composition and morp...

In this paper, we study the convexity of the integral operator

This paper contains an analysis of features of gesture types that are produced before or simultaneously with speech (mainly. nouns and verbs) and in relation to own communication management (choice and change). The types of gestures discussed are arm-hand gestures, head movements and gaze. The analysis is then discussed in relation to two selected social activities, where virtual agents (ECAs) ...