background and objectives: bacterial resistance to conventional antibiotics has become a widespread public health prob- lem. the aim of this study was to investigate the influence of zinc oxide nanoparticles (zno nps) on the antibacterial activity of several conventional antibiotics against pseudomonas aeruginosa. materials and methods: zno nps were prepared by solvothermal method and dispersed...

The combined effect of ion and laser beams on physical mechanical properties metal alloy surfaces has been studied. technique determining the main parameters polyenergetic implantation using a vacuum-arc source is proposed evaluated. It found that treatment with titanium ions subsequent thermal hardening increase microhardness steel 45 U8 up to 6 times.

In this paper, a method for detecting synergistic effects of the interaction elements in multi-element stochastic systems separate redundancy, multi-server queuing, and statistical estimates nonlinear recurrent relations parameters has been developed. The detected are quite strong manifest themselves even with rough estimates. This allows studying them mathematical methods relatively low comple...

Living organisms are exposed to a mixture of environmental stressors, and the resultant effects are referred to as multiple stressor effects. In the present work, we studied the multiple stressor effect in embryos of the zebrafish (Danio rerio) from simultaneous exposure to ionising radiation (alpha particles) and cadmium through quantification of apoptotic signals at 24 h postfertilisation (hp...

Newly diagnosed epileptic patients start their medication with monotherapy. Around 30% of epileptic patients require more than one antiepileptic drug. Results from experimental studies provide evidence that administration of two antiepileptic drugs may result in antagonistic, additive, or supra-additive (synergistic) anticonvulsant effects. If adverse effects of a synergistic combination also s...

Ionizing radiations (4), carcinogenic hydrocar bons (12), and estrogenic hormones (8) are leuke mogenic for mice of specific genetic constitutions (8). Synergistic and additive effects of x-rays and methylcholanthrene have been demonstrated (1, 13). A preliminary paper has been published on the synergistic action of x-rays and an estrogenic hormone (9). In the present report genetic requirement...