OTHER TURNINGS

On the triggering of auroral substorms by northward turnings of the interplanetary magnetic field

Some studies over the last decade have indicated that the instability responsible for substorm expansion phase onset may require an external trigger such as a northward turning of the interplanetary magnetic field (IMF). Statistical investigations have lead to contrasting interpretations regarding the relationship between proposed solar wind triggers and substorm onsets identified from geomagne...

Islam and other Religions

Any student of comparative religion will notice - and seek to identify as well - the points of similarity and difference between various religions. One might even claim that the discipline of “influence studies” has its roots in these discussions of comparison and contrast. However, these discussions persistently fail to address the nuances of particular faiths. Here, I intend to shed some ligh...

Dating divergence of Polystigma and other Sordariomycetes

Studies on the evolutionary history of ascomycetes in terms of time scale will help to understand historical patterns that shape their biodiversity. Until now most of dating studies of ascomycetes have focused on major events in fungal evolution but not on divergence events within smaller groups of fungi e.g. within Sordariomycetes. We used molecular dating to estimate the time of separation of...

Tricky Turnings of the Screw(ed): The Poetic, Ethical, and Erotic Mystery of Self-Reflexive Fakery and Illusion

Solid-phase extraction of several phthalate esters from environmental water samples on a column packed with polytetrafluoroethylene turnings.

A method for the determination of several phthalate esters in water samples using solid-phase extraction coupled to high-performance liquid chromatography was developed. A polytetrafluoroethylene turnings packed column was used as a SPE adsorbent material. The analytes were sorbed on polytetrafluoroethylene turnings, from which they were eluted by a small amount of acetonitrile, followed by a R...