Uranium isotopes in ancient sedimentary rocks have emerged as a powerful proxy for the
oxygenation history of Earth surface environments. Proper quantitative interpretation of δ 238 …

We describe a method for determining the thermal and elastic properties of the noncrystalline
phase of semicrystalline polymers (the “interphase”) by Monte Carlo simulations. The …

Theoretical values for the thermomechanical properties of poly(ethylene terephthalate) (PET)
are determined self-consistently using the pcff force field to compute the potential energy …

The non- phenolic oxidative coupling of some diarylbutane lignans related to matairesinol
dimethyl ether (1) has been investigated. Coupling with a thallium(III) oxidant, prepared in situ …

The structure determination of the title compound [dicarbonyl (r/6-1, 2, 3, 4, 4a, 9, 10, 10a-octahydro-6-meth-oxy-l-methoxymethyl-l,
4a-dimethylphenanthrene)-thiocarbonylchromium (0)…

Background Intensive risk factor reduction in patients with dyslipidemias and coronary
atherosclerosis has been shown to result in alterations in coronary artery morphology and …

The A and C rings of the aromatic diterpenoid resin acid podocarpic acid from the heartshakes
of the New Zealand conifer Dacrydium cupressinum have been modified to provide useful …

A novel procedure has been developed for the regioselective hydroxylation of ring-C
aromatic diterpenoids via their (η 6 -arene)tricarbonylchromium(0) complexes. Lithiation-cupration-…

… VS-SRS changes an AVM’s supplementary grade, but unlike the SpetzlerMartin grade that
only decreases after radiation, the supplementary grade can move in either direction. Patient …

Methyl 13-(N,N- diethylcarbamoyl )-12-methoxypodocarpa-8,11,13-trien-19-oate (2), 13-(N,N-
diethylcarbamoyl )-12,19-dimethoxypodocarpa-8,11,13-triene (8) and N,N-diethyl-2-…