As in all organisms, metal cations are crucial for nutrition in plants. Severalmetals, such as copper, iron, zinc, and manganese, act as important cofactors for many enzymes and are essential for bothmitochondrial and chloroplast functions. However, when supplied in excess, these essential cations can become toxic, like heavy metals with no generally established function, such as cadmium, lead,...

Concentrations of seven heavy metals (Cd, Cr, Cu, Hg, Ni, Pb, and Zn) and one metalloid (As) as well as various parameters (pH, organic carbon, granulometric analysis and cation exchange capacity) were analyzed in 77 soil samples collected in the mining areas of La Zanja and Colquirrumi (Department of Cajamarca) and Julcani (Department of Huancavelica). Our study proposed geochemical baseline v...

As in all organisms, metal cations are crucial for nutrition in plants. Severalmetals, such as copper, iron, zinc, and manganese, act as important cofactors for many enzymes and are essential for bothmitochondrial and chloroplast functions. However, when supplied in excess, these essential cations can become toxic, like heavy metals with no generally established function, such as cadmium, lead,...

Precision measurements of Schiff moments in heavy, deformed nuclei are sensitive probes beyond standard model T, P violation the hadronic sector. While most stringent limits on to date set with diamagnetic atoms, polar polyatomic molecules can offer higher sensitivities unique experimental advantages. In particular, symmetric top molecular ions possess K doublets opposite parity especially smal...

Abstract We report a breakthrough concept for bulk single crystal as heavy aluminum perovskite scintillator, where due to bandgap engineering by balanced Gd admixture in Lu cation sublattice, the scintillation performance dramatically increases. In an optimized composition of (Lu, Gd)AlO 3 :Ce (LuGdAP:Ce), light yield approaches 21,000 phot/MeV, which is close that classical but much less dense...

In this study, the effect of variety of Nano- additives doping on the hydration resistance of the MgO-CaO system was investigated. Samples were prepared from calcined dolomite and magnesite. Nano-additives that contained cations with various valences (trivalent and tetravalent) used as  a dopant. The bulk density, apparent porosity and hydration resitance were studied and evaluated. Also, phase...

Heterodimeric amino acid transporters are comprised of two subunits, a polytopic membrane protein (light chain) and an associated type II membrane protein (heavy chain). The heavy chain rbAT (related to b(0,+) amino acid transporter) associates with the light chain b(0,+)AT (b(0,+) amino acid transporter) to form the amino acid transport system b(0,+), whereas the homologous heavy chain 4F2hc i...

Antibodies with epitopes near the heavy meromyosin/light meromyosin junction distinguish the folded from the extended conformational states of smooth muscle myosin. Antibody 10S.1 has 100-fold higher avidity for folded than for extended myosin, while antibody S2.2 binds preferentially to the extended state. The properties of these antibodies provide direct evidence that the conformation of the ...