The recognition of poly ADP-ribose transferase-1 (PARP-1) as an ATP sensor receiving this energy source by way of a specific adenylate kinase ATP wire (AK) from mitochondrial ATP synthase (F0F1), and directly regulating cellular mRNA and DNA synthesis, was the first step towards the identification of an effect by PARP-1 that is of fundamental significance. The molecular target of AK-ATP is Arg ...

The main intensity limitations in future hadron or positron rings are expected to come from unconventional loss mechanisms. First, we will present a review of the single bunch collective effects driven by electron cloud. The wake field generated by an electron cloud can lead to transverse beam instability and loss over a few turns. The electron cloud wake field is highly unconventional, since t...

In order to study the wakefield effects of an electron cloud, a test bunch was placed behind a bunch train, where the cloud density rapidly varied. A currentdependent tune shift and the tune spread of the test bunch were measured as a function of the bunch current while varying the bucket position of the test bunch. The vertical tune shift indicated a strong defocusing force together with a wid...

Analysis of the bonding contributions in molecules [MIIICp*(L)XY] (M = Rh, Ir; Cp* C5Me5; L CO, CN–, CNR) has uncovered a rich variety types interaction that seem to have escaped detection so far, spite continuous popularity cyclopentadienyl transition-metal complexes since 1970s. At variance with M—C≡O bond square-planar systems, which shows typical metal-to-CO π-back-donation, nonorthogonal a...

The dielectric response of pentagonal defects in multilayer graphene nano-cones has been studied by electron energy loss spectroscopy and ab initio simulations. At the cone apex, a strong modification of the dielectric response is observed below the energy of the π plasmon resonance. This is attributed to π → π* interband transitions induced by topology-specific resonant π bonding states as wel...

Chiral acrylic esters derived from biomass were developed as models to have a better insight in the aryl-vinyl π-stacking interactions. Quantum chemical calculations, NMR studies and experimental evidences demonstrated the presence of equilibriums of at least four different conformations: π-stacked and face-to-edge, each of them in an s-cis/s-trans conformation. The results show that the stabil...

We present an overview of fundamental catalytic reactions nucleophiles with π-systems in relation to gold chemistry. examples gold-activated π-systems, alkynyl or allenyl moieties, and the regulation their reactivity due presence electron-donating -withdrawing group. The describe furnished hard-to-reach heterocyclic building blocks for medicinal chemistry purposes. Important gold(I) gold(III) c...

B substituting O in antiferromagnetic Cr2O3 is known to increase the Néel temperature, whereas actual dopant site and corresponding functionality remains unclear due complicated local structure. Herein, A combination of electron energy loss spectroscopy first-principles calculations were used unveil structures doped thin films. was found form either magnetic active BCr4 tetrahedra or various in...

Open AccessCCS ChemistryRESEARCH ARTICLE1 Mar 2021New Insights into the Ion-Specific Behaviors and Design Strategies for Ion–π Interactions Zhangyun Liu, Zheng Chen Xin Xu Liu Collaborative Innovation Center of Chemistry Energy Materials, Shanghai Key Laboratory Molecular Catalysis Innovative MOE Computational Physical Sciences, Department Chemistry, Fudan University, 200433 Google Scholar More...