A new theory suggests that in the earliest years of life on Earth, dozens of types of loosely organized protocells engaged in an active swap meet as they exchanged and tested what are now the basic building blocks of the cell.
Compatible with previous studies which have characterized a universal metabolic 'skeleton' [ 18, 20, 21], the universal pathways in humans are mainly involved in the metabolism of the basic building blocks of every living cell: carbohydrates, lipids, and amino-acids.
N-type and p-type silicon are butted together to form p-n junctions, the basic building blocks of electronic devices such as solar cells, light-emitting diodes, and transistors.
Photovoltaic cells, the basic building blocks of solar panels, are more efficient and less costly than ever.
In this work, we take the basic building blocks of internal cognitive representations to consist of widely distributed networks of strongly connected neurons, referred to as cell assemblies (CAs) (Braitenberg, 1978; Hebb, 1949; Palm, 1982).
Intact polar lipids (IPLs), which are the basic building blocks of biomembranes, are ubiquitous in nature and have several characteristics that make them useful as proxies for living microbial cells.
