We have studied inflationary paradigm through an equation of state. With a single parameter state as function the scalar field responsible for accelerated expansion, we find observationally viable model satisfying all constraints laid down by recent observations. The resulting can efficiently cover wide range tensor-to-scalar ratio ranging from $r\sim\mathcal{O}(10^{-1})$ to $\mathcal{O}(10^{-6...

a quantum theory of a two and three-level laser with injected atomic coherence is developed by using a density operator method, to the best of our knowledge, for the first time. the initial atomic coherence plays an essential role. at steady state, the equation of motion for the density operator yields to exhibit laser without inversion and a phase locking but no threshold for the laser field. ...

Acridine-induced frameshift mutations in bacteriophage T4 occur at the precise location in the DNA at which acridines stimulate DNA cleavage by the T4-encoded type II topoisomerase in vitro. The mutations are duplications or deletions that begin precisely at the broken phosphodiester bond. In vivo, acridine-induced frameshift mutagenesis is reduced nearly to background levels when the topoisome...

In the title compound, C(22)H(17)NO(2), the acridine ring system and the benzene ring are oriented at a dihedral angle of 37.7 (1)°. The carboxyl group is twisted at an angle of 67.7 (1)° relative to the acridine skeleton. In the crystal, mol-ecules are arranged in stacks along the b axis, with all of the acridine rings involved in multiple π-π inter-actions [centroid-centroid distances in the ...

A new and simple equation of state a monatomic quantum crystal is constructed using the continuum approximation for interacting atoms Mie-Gruneisen theory. The makes it possible to describe phase diagram both in region compressive pressures vicinity critical point. Expressions volume, pressure temperature are found analytically. Comparison numerical calculations with experimental data helium sh...

The alkylating proficiency of sulfur-containing mustards may be increased by using an acridine moiety to guide the sulfur mustard to its cellular target. In this study, the interactions of a new series of sulfur-containing acridine ligands, some that also function as alkylating mustards, with DNA were evaluated by electrospray ionization mass spectrometry (ESI-MS). Relative binding affinities w...