Two types of annulene which may show significant Möbius aromatic character and bond and twist delocalisation are proposed; triplet states with 4n + 2 occupancy of the p pi array of atomic orbitals and a novel 8-pi carbeno[8]heteroannulene ring system 1 where the Hückel highly antiaromatic nature as a planar system can be attenuated or even reversed by the C2 symmetric Möbius distortion.

We explore alternate theories of gravity where the gravitational term in Lagrangian $\frac{R}{8\pi G}$ is replaced by a function $f_1(R)$ and matter multiplied $f_2(R)$. argue that nuclear physics can provide strong experimental constraints on such theories. In particular using energy conditions pressure $^4$He nucleus, for $f_1(R)=\frac{R}{8\pi $f_2(R)=1+\lambda R$, we find limit $|\lambda| < ...

BACKGROUND Monocytes play an important role in the fetal and neonatal inflammatory response syndrome. They are also the precursors of alveolar macrophages, microglial and Kupffer cells. Monocytes have pro-inflammatory (PI) and anti-inflammatory (AI) functions. Interleukin (IL)-10 is a potent AI cytokine released by monocytes. OBJECTIVE We determined the effects of endogenous and exogenous IL-...

Within 48 h of the addition of 2.5 mM phosphate (HPO42-, Pi) or phosphite (H2PO3-, Phi) to 8-day-old Pi-starved (-Pi) tomato suspension cells: (i) secreted and intracellular purple acid phosphatase (PAP) activities decreased by about 12- and 6-fold, respectively and (ii) immunoreactive PAP polypeptides either disappeared (secreted PAPs) or were substantially reduced (intracellular PAP). The deg...

BACKGROUND We investigated the potential of conversion to sirolimus (SRL) as a primary immunosuppressant in attenuating cardiac allograft vasculopathy progression. METHODS AND RESULTS Twenty-nine cardiac transplant recipients were converted to SRL 3.8+/-3.4 years after transplantation with complete calcineurin inhibitor (CNI) withdrawal. Secondary immunosuppressants (azathioprine or mycopheno...

Abstract In this work, we investigate the quasi-two-body decays $B_c\to D^*h\to D\pi h$ with $h = (K^0,\pi^0,\eta,\eta^{\prime})$ using perturbative QCD(PQCD)&amp;#xD;approach. The description of final state interactions between $D\pi$ pair is achieved through two-meson distribution amplitudes (DAs),&amp;#xD;which are normalized to time-like form factor. PQCD predictions on branching ratios h$&...

It is shown that on every closed oriented Riemannian 4-manifold (M, g) with positive scalar curvature, $$\begin{aligned} \int _M|W^+_g|^2d\mu _{g}\ge 2\pi ^2(2\chi (M)+3\tau (M))-\frac{8\pi ^2}{|\pi _1(M)|}, \end{aligned}$$ ? M | W g + 2 d ? ? ? ( ? ) 3 ? - 8 1 , where $$W^+_g$$ $$\chi (M)$$ and $$\tau respectively, denote the self-dual Weyl tensor of g, Euler characteristic signature M. This g...

for a ring endomorphism $alpha$ and an $alpha$-derivation $delta$, we introduce a concept, so called skew $pi$-armendariz ring, that is a generalization of both $pi$-armendariz rings, and $(alpha,delta)$-compatible skew armendariz rings. we first observe the basic properties of skew $pi$-armendariz rings, and extend the class of skew $pi$-armendariz rings through various ring extensions. we nex...

Four new D-pi-D (or D-pi-D-pi-D) complexes 9-ethyl-3-E-((1-ferrocenyl)vinyl)-carbazole (1), 9-ethyl-3,6-E,E-((1,1-diferrocenyl)vinyl)- carbazole(2), 10-ethyl-3-E-((1-ferrocenyl)vinyl)-phenothiazine (3), 10-ethyl- 3,7-E,E- ((1,1-diferrocenyl)vinyl)-phenothiazine (4), have been obtained by solid-phase Wittig reactions and fully characterized. The four complexes were treated with iodine leading to...