33 WHY would anyone still want to study a physical phenomenon that was discovered in the 1930s, explained in the 1960s and has been the subject of numerous reviews since the 1970s? Although the Kondo effect is a well known and widely studied phenomenon in condensedmatter physics, it continues to capture the imagination of experimentalists and theorists alike. The effect arises from the interact...

The methane concentration in the Earth's atmosphere is rising, and, as methane is a potent greenhouse gas, it contributes considerably to climate change. It is produced by methanogenic archaea that thrive in anoxic habitats and can be oxidized by methane-oxidizing bacteria or archaea. In this Perspective, recent innovations and discoveries in archaeal methane microbiology are discussed and a fu...

OPSOMMING Geregistreerde vroedvroue in Suid-Afrika word deur die Wet verplig om borsvoeding te bevorder. 'n Uiteensetting word gegee van die fisiologie van borsvoeding, voorgeboorte voorligting aan moeders, borsvoeding na ’n normale bevailing, voeding van die premature baba en die hantering van probleme van die borste. Die nadele verbonde aan byvoedings, medies-geregtelike aspekte, die bevorder...