A new chlorinated pentacyclic polyketide, daldinone E (1), was purified from a Daldinia sp. fungal isolate treated with the epigenetic modifier suberoylanilide hydroxamic acid (SAHA). A biosynthetically related epoxide-containing daldinone analogue, 2, was also purified from the same fungus. The structures of both compounds were established by spectroscopic methods, and the absolute configurati...

The potential energy curve of the ground state of Mn2 has been studied using a systematic sequence of complete active spaces. Deficiencies of the routinely used active space, built from atomic 4s and 3d orbitals, has been identified and discussed. It is shown that an additional sg orbital, originating from the atomic virtual 4pz orbitals, is essential for a proper description of static correlat...

The potential energy curve of the ground state of Mn(2) has been studied using a systematic sequence of complete active spaces. Deficiencies of the routinely used active space, built from atomic 4s and 3d orbitals, has been identified and discussed. It is shown that an additional sigma(g) orbital, originating from the atomic virtual 4p(z) orbitals, is essential for a proper description of stati...

Optical modeling of iridium thin film erosion under oxygen plasma exposure*" (2004). This work is motivated by interest in use of iridium metal films in the space environment. Optical metrology is a sensitive tool for study of film roughness, optical constants, and microstructural properties. In the present paper, in situ spectroscopic ellipsometry is applied to monitor oxygen plasma etching of...

We build a Markov partition of the Feigenbaum dynamical plane, and a system of “external rays”, which are invariant under rescaling. Applications to geometry of the Feigenbaum map are given.

In-depth radiation absorption significantly affects the ignition time and burning rate of flammable translucent materials. To improve accuracy flammability predictions by pyrolysis models, spectral dependency sources depth computational cell in sample should be considered. This paper provides spectra black Poly(methyl methacrylate) (PMMA) a wide range 0.25 to 25 μm measuring high-resolution tra...