Tailor-made additives can prove an effective method to prolong the lifetime of metastable forms of pharmaceutical compounds by surface stabilization. Pyrazinamide (PZA) is a pharmaceutical compound with four polymorphic forms. The high temperature γ form, which can be produced by spray drying or sublimation growth, is metastable at room temperature and transforms within days when produced by sp...

A wide range of volcanic sublimates and alteration products from the Johnston-Lavis collection z has been analysed for major elements plus copper, lead, and zinc. 'Aphthitalite' and 'natrikalite' from Mount Vesuvius and an 'alum' from the island of Vulcano all proved to be enriched in copper and selected analyses are tabulated. The process leading to copper and lead enrichment of the Vesuvian m...

GRB980519 is characterized by its rapidly declining optical and X-ray afterglows. Explanations of this behavior include models invoking a dense medium environment which makes the shock wave evolve quickly into the sub-relativistic phase, a jet-like outflow, and a wind-shaped circumburst medium environment. Recently, Frail et al. (1999a) found that the latter two cases are consistent with the ra...

Combining insights from Freud and Weber, this article explores whether Protestants (vs. Catholics and Jews) are more likely to sublimate their taboo feelings and desires toward productive ends. In the Terman sample (Study 1), Protestant men and women who had sexual problems related to anxieties about taboos and depravity had greater creative accomplishments, as compared to those with sexual pro...

a r t i c l e i n f o a b s t r a c t At martian mid-to-high latitudes, the surfaces of potentially ice-rich features, including concentric crater fill, lobate debris aprons, and lineated valley fill, typically display a complex texture known as " brain terrain, " due to its resemblance to the complex patterns on brain surfaces. In order to determine the structure and developmental history of c...

Echoing the New Democratic Revolution, “happiness” contains two meanings in Yan’an literature and art: the happiness of daily life and the happiness of the realization of the subjective value. Specifically speaking, the two meanings are supported by three interlocking narrative: The end of oppression, the beginning of happiness, the realization of subject. The arrival of a new society means the...

Growth of mutually aligned organic nanofibers from functionalised p-quaterphenylene has been demonstrated on a mica substrate via high vacuum sublimation. The fibers bridge the gap between microscopic and macroscopic dimensions according to their typical width in nanometer scale and length up to several hundred micrometers. They are an important step forward towards integrated nanoscopic optoel...