From cars to food wrap and from planes to pens, you can make anything and everything from plastics—unquestionably the world's most versatile materials. But there's a snag. Plastics are synthetic (artificially created) chemicals that don't belong in our world and don't mix well with nature...
Measuring the Riches Line 117 subgroups, such as poverty among children (e.g. Roelen et al. 2010; Chzhen and Ferrone 2017; Stewart and Roberts 2019). However, we cannot simply copy the poverty line and apply it to the other side of the distribution, since we are measuring ...
Learning tasks directed towards levels of difficulty predetermined by the teacher carry the risk that some students are overtaxed or misjudged or fixed at a specific level as viewed by the teacher. Research shows that learning environments that allow natural differentiation (ND) can reduce these ...
There is a profound distinction between poliovirus – an enterovirus, one that enters through the mouth and takes up residence in the GI tract and bloodstream – and poliomyelitis, the paralytic form of the illness. In the vast majority of cases, the virus causes either a...