BACKGROUND Sexually transmitted diseases and most notably syphilis-infections are rising amongst men who have sex with men. In HIV-co-infected patients, an accelerated clinical course of syphilis neurological involvement is known. CASE PRESENTATION A 46 year old HIV-positive male patient came in to our emergency department in the late evening with acute fever, rapidly progressive cephalgia an...

much alike that serological experiment shows that by the presence of syphilis-antigen the presence in the serum of a yaws patient of framboesia-antibodies is made evident (by complement, deviation), yet the two diseases are distinct. For, as Charlouis pointed out, many years ago, the fact that a man is suffering from yaws does not protect him against luetic infection, and conversely, as Neisser...

VANADIUM minerals are rare in Britain. Vanadinite, Pbs(VO4)3C1, was first discovered by Johnston (I83 I) in the Wanlockhead mining district of Dumfriesshire; it was by his account comparatively plentiful and specimens appear in most large mineral collections. Mottramite, Pb(Cu, Z n ) V Q O H , first described by Roscoe (I876, p. I I I), was so named after its considered origin at Mot t ram St. ...

The fundamental behavior of sodium sulfate crystallization and induced decay in concrete and other building materials is still poorly understood, resulting in some misinterpretation and controversy. We experimentally show that under real world conditions, both thenardite (Na2SO4) and mirabilite (Na2SO4 10H2O) precipitate directly from a saturated sodium sulfate solution at room temperature (20°...

Abstract. Atmospheric aerosols consisting of organic and inorganic components may undergo liquid–liquid phase separation (LLPS) liquid–solid transitions during ambient relative humidity (RH) fluctuation. However, the knowledge dynamic evolution processes for mixed organic–inorganic particles is scarce. Here we present a universal visualized observation LLPS, efflorescence deliquescence as well ...

Hemp-based composites are eco-friendly building materials as they improve energy efficiency in buildings and entail low waste production and pollutant emissions during their manufacturing process. Nevertheless, the organic nature of hemp enhances the bio-receptivity of the material, with likely negative consequences for its long-term performance in the building. The main purpose of this study w...

Salinity has plagued irrigated agriculture throughout history (Tanji, 1990), and soil salinization is an old–yet– new problem in arid regions. For example, there are approximately 100 million ha of salt–affected soils in China, accounting for one tenth of the total land area (Li, 2009). The development of effective salinity control practices requires an understanding of the causal relationship ...