The paper deals with the evaluation of the Fukushima-Daiichi Nuclear Power Plant (NPP) accident in Units 1 to 4: an attempt is made to discuss the scenario within a technological framework, considering precursory documented regulations and predictable system performance.An outline is given at first of the NPP layout and of the sequence of major eve
Purse seiners deploy large amounts of drifting fish aggregation devices (FADs) in all tropical oceans to catch tunas.These FADs are constructed with porous synthetic fibre netting, which are responsible for incidental mortality of sea turtles and sharks through entanglement, and can engage in ghost fishing if they are lost and abandoned.The use of
Two new indolizidine alkaloids, crepidatumines C (1) Outdoor Coffee Table and D (2), together with crepidine (3), isocrepidamine (4), and crepidamine (5) were isolated from the Dendrobium crepidatum Lindl.ex Paxt.X-ray diffraction experiments established the absolute configurations of known compounds 3 and 4.The planar structures and relative confi
Abstract The pygmy toad genus Poyntonophrynus is endemic to southern Africa.The morphology of these small toads Uphaul is conserved.They are usually dully colored, and are predominately adapted to arid conditions.During recent surveys in Angola we found Poyntonophrynus specimens that were not assignable to known species.Using an integrative approac
Hydration reactions of samples made from skarn-type copper tailings, blast furnace slag, quartz sand, cement clinker and natural gypsum during the process of pre-curing, autoclaving and re-curing were investigated by strength testing, X-ray diffraction analysis BODIFYING FOAM MOUSSE and scanning electron microscopy.The influences of calcium and sil