We present results of laboratory investigation slag-like artifacts, found on an archaeological site near Boršice, known by occurrence artifacts from the Early Neolithic (5 700–5 000 BC), Bronze and Medieval Ages. The grey-coloured foamy reach up to 5 cm in size often display original lava-like surface. These slags are formed especially strongly potassic (15–23 wt. % K2O) silicic (54–72 SiO2) gl...

A 35 month old girl had suffered from painful joint contractures of the whole body since a few months after birth, and she gradually developed numerous periarticular and subcutaneous nodules, hoarseness, swallowing difficulty with recurrent respiratory infections, nystagmus, and mental and developmental retardation. She was misdiagnosed as having juvenile rheumatoid arthritis at several univers...

Foamy viruses are retroviruses of the spumavirus family that are often isolated from primary cultures of primate cells. We previously constructed vectors based on human foamy virus (HFV) and found that they were able to transduce a wide variety of vertebrate cells by integration of the vector genome. Here we show that several types of hematopoietic cells are efficiently transduced by an HFV vec...