The title mononuclear Ni(II) complex, [Ni(C(11)H(11)N(2)O(5))(2)(C(2)H(8)N(2))(2)], is built up by inversion symmetry associated with the central Ni atom. The ethyl-enediamine ligands are non-planar. The r.m.s. deviation from the mean plane of the five-membered Ni-ethyl-amine chelate ring plane is 0.1945 Å. In the crystal structure, complex mol-ecules are linked to each other via N-H⋯O and O--H...

Abstract Let $\Gamma $ be a finite set, and $X\ni x$ fixed kawamata log terminal germ. For any lc germ $(X\ni x,B:=\sum _{i} b_iB_i)$ , such that $b_i\in \Gamma Nakamura’s conjecture, which is equivalent to the ascending chain condition conjecture for minimal discrepancies germs, predicts there always exists prime divisor E over $a(E,X,B)=\mathrm {mld}(X\ni x,B)$ $a(E,X,0)$ bounded from above. ...

where the polynomial matrices Ni(s) and D(s) form a normal external description (NED) of (C, A H ) ; see [11]. The matrices N(s) := CNx(s) and D(s) then form, not necessarily coprime, a matrix fraction description (MFD) of (C,A,B). Recall that Ni(s) and D(s) are right coprime with D(s) being column reduced. The column degrees, Cj := degciD(s), i = 1,2,... ,m, are the controllability indices of ...

PURPOSE Light-evoked responses from vertebrate retinas were recorded as an electroretinogram (ERG). The b-wave is the most prominent component of the ERG, and in the bovine retina its NiCl(2) -sensitive component was attributed to reciprocal signalling by pharmacoresistant R-type voltage-gated Ca(2+) channels, which similar to other voltage-dependent Ca(2+) channels trigger and control neurotra...

New data for near-barrier Li, Be and B + Ni elastic scattering enable a comparison of breakup coupling effects for these loosely-bound projectiles. Coupled Discretised Continuum Channels (CDCC) calculations suggest that the large total reaction cross sections for B + Ni are dominated by breakup at near-barrier energies, unlike Li and Be where breakup makes a small contribution. In spite of this...

The high levels of some metals in metal hyperaccumulator plants may be transferred to insect associates. We surveyed insects collected from the South African Ni hyperaccumulator Berkheya coddii to document whole-body metal concentrations (Co, Cr, Cu, Mg, Mn, Ni, Pb, Zn). We also documented the concentrations of these metals in leaves, stems and inflorescences, finding extremely elevated levels ...