Phosphorus (P) is the 11th most abundant element of the earth’s crust. Phosphorus (P) is an essential element for all living organisms. The world’s main source of P is phosphate (Pi) rock. It is a non-renewable resource. There is neither any alternative to P nor a synthetic way of creating it. P is involved in various basic biological functions, for instance as a structural element in nucleic a...

Local translation of oskar (osk) mRNA at the posterior pole of the Drosophila oocyte is essential for axial patterning of the embryo, and is achieved by a program of translational repression, mRNA localization, and translational activation. Multiple forms of repression are used to prevent Oskar protein from accumulating at sites other than the oocyte posterior. Activation is mediated by several...

While many elements are considered essential to human health, others can be toxic. However, because the intake, accumulation, transport, storage and interaction of these different metals and metalloids in nature is strongly influenced by their specific elemental form, complete characterization of the element is essential when assessing its benefits and/or risks. This is why, elemental speciatio...

We follow throughout a heterogeneous approach to present some characterizations (Theorem 3.5 and Theorem 3.35) of subdirectly irreducible bijective Boolean modules. The notions of essential element (as modular element) and [1]-closed element (as Boolean element) were implemented to this class of algebras. Our final aim of reaching the class of simple bijective Boolean modules, as a particular c...