How adsorption influences DNA denaturation (2009)
Allahverdyan, A. E., Gevorkian, Zh. S., Hu, Chin-Kun, Nieuwenhuizen, Th. M.
The thermally induced denaturation of DNA in the presence of attractive solid surface is studied. The two strands of DNA are modeled via two coupled flexible chains without volume interactions. If...
DNA Bubble Life Time in Denaturation (2008)
Gevorkian, Zh. S., Hu, Chin-Kun
We have investigated the denaturation bubble life time for a homogeneous as well as for a heterogeneous DNA within a Poland-Scheraga model. It is shown that at criticality the bubble life time for a...
Gevorkian, Zh. S., Verhoeven, J.
We show that the numerical code used in the above mentioned paper does not take into account the multiple scattering effects of electromagnetic field properly and is therefore incorrect.
Observation of Resonant Diffusive Radiation in Random Multilayered Systems (2006)
Gevorkian, Zh. S., Harutyunyan, S. R., Ananikian, N. S., Arakelian, V. H., Ayvazyan, R. B., Gavalyan, V. V., ...
Diffusive Radiation is a new type of radiation predicted to occur in randomly inhomogeneous media due to the multiple scattering of pseudophotons. This theoretical effect is now observed...
Adhesion Induced DNA Naturation (2005)
Allahverdyan, A. E., Gevorkian, Zh. S., Hu, Chin-Kun, Nieuwenhuizen, Th. M.
DNA adsorption and naturation is modeled via two interacting flexible homopolymers coupled to a solid surface. DNA denatures if the entropy gain for unbinding the two strands overcomes the loss of...
Resonant Diffusive Radiation in Random Multilayered Systems (2005)
Gevorkian, Zh. S., Verhoeven, J.
We have theoretically shown that the yield of diffuse radiation generated by relativistic electrons passing random multilayered systems can be increased when a resonant condition is met. Resonant...
Unzipping of DNA with correlated base-sequence (2004)
Allahverdyan, A. E., Gevorkian, Zh. S., Hu, Chin-Kun, Wu, Ming-Chya
We consider force-induced unzipping transition for a heterogeneous DNA model with a correlated base-sequence. Both finite-range and long-range correlated situations are considered. It is shown that...
Force-induced unzipping of DNA with long-range correlated sequence (2002)
Allahverdyan, A. E., Gevorkian, Zh. S.
We consider force-induced unzipping transition for a heterogeneous DNA model with a long-range correlated base-sequence. It is shown that as compared to the uncorrelated situation, long-range...
Correlation function of random heteropolymer solutions (2002)
Gevorkian, Zh. S., Hu, Chin-Kun
We study the density-density correlation function of the dense random heteropolymer solutions. We show that a phase transition is possible due to the heterogeneity of polymers. We also show that the...
New Phase Transition in Polymer Solutions with Multicomponent Solvent (2002)
Gevorkian, Zh. S., Hu, Chin-Kun
Considering the density-density correlation function of a concentrated polymer solution with multicomponent solvent we find a phase transition due to the heterogeneity of excluded volume constant....
Gevorkian, Zh. S., Chen, C. P., Hu, Chin-Kun
We have considered X-ray radiation of a relativistic charged particle moving in a system consisting of microspheres distributed randomly in a dielectric material. A new mechanism based on the...
Gevorkian, Zh. S., Nieuwenhuizen, Th. M.
The contribution of interference effects to the radiation of a charged particle moving in a medium of randomly spaced plates is considered. In the angular dependent radiation intensity a peak appears...