Ikerbasque

About: Ikerbasque is a other organization based out in Bilbao, Spain. It is known for research contribution in the topics: Graphene & Quantum. The organization has 713 authors who have published 7967 publications receiving 231990 citations. The organization is also known as: Basque Foundation for Science.

Ecosystem services: heed social goals.

Abstract: C R E D IT : R O G E R B R A N D T , N P S /W IK IM E D IA C O M M O N S Response CURL MAKES A VALID POINT ABOUT THE BEHAVior of carbonate minerals on multimillionyear time scales. Our interest, though, is in the much shorter time scales of decades to centuries. Considering remaining uncertainties in measuring some aspects of the global carbon cycle and the relatively rapid environmental changes under way in the atmosphere and oceans, quantifying carbon budgets in relevant geological systems for these shorter time periods may be more complicated (1). Our task is to better understand rates and processes associated with mineral weathering and impacts on carbon cycling. C. GROVES,* J. CAO, C. ZHANG Hoffman Environmental Research Institute, Western Kentucky University, Bowling Green, KY 42101, USA. International Research Centre on Karst under the auspices of UNESCO and Key Laboratory of Karst Geology, Institute of Karst Geology, Chinese Academy of Geological Sciences, Ministry of Land and Resources, Guilin, Guangxi, 541004, China.

π‐Hole Bonds: Boron and Aluminum Lewis Acid Centers

Abstract: MP2/aug-cc-pVTZ calculations were performed on complexes of boron and aluminum trihydrides and trihalides with hydrogen cyanide (ZH3 -NCH and ZX3 -NCH; Z=B, Al; X=F, Cl). The complexes are linked through the B⋅⋅⋅N and Al⋅⋅⋅N interactions, which are named as triel bonds and which are classified as π-hole bonds. It was found that they possess numerous characteristics of typical covalent bonds, since they are ruled mainly by processes of the electron charge shift from the Lewis base to the Lewis acid unit. Other configurations of the ZH3 -NCH and ZX3 -NCH complexes linked by the dihydrogen, hydrogen, and halogen bonds were found. However, these interactions are much weaker than the corresponding π-hole bonds. The quantum theory of atoms in molecules and the natural bond orbital approaches were applied to characterize the complexes and interactions analyzed. The crystal structures of triel trihydrides and triel trihalides were also analyzed for comparison with the results of calculations.

Human PCNA Structure, Function and Interactions.

Abstract: Proliferating cell nuclear antigen (PCNA) is an essential factor in DNA replication and repair. It forms a homotrimeric ring that embraces the DNA and slides along it, anchoring DNA polymerases and other DNA editing enzymes. It also interacts with regulatory proteins through a sequence motif known as PCNA Interacting Protein box (PIP-box). We here review the latest contributions to knowledge regarding the structure-function relationships in human PCNA, particularly the mechanism of sliding, and of the molecular recognition of canonical and non-canonical PIP motifs. The unique binding mode of the oncogene p15 is described in detail, and the implications of the recently discovered structure of PCNA bound to polymerase δ are discussed. The study of the post-translational modifications of PCNA and its partners may yield therapeutic opportunities in cancer treatment, in addition to illuminating the way PCNA coordinates the dynamic exchange of its many partners in DNA replication and repair.

Self‐Assembly of Au@Ag Nanorods Mediated by Gemini Surfactants for Highly Efficient SERS‐Active Supercrystals

Abstract: 11] and encouraged by the need of optimization of the self-assembly process that may allow the design of large-scale supercrystals with high optical activity for SERS detection, we report on a straightforward approach to obtain long-range plas-monic supercrystals made of standing core-shell gold-silver nanorods (Au@AgNRs), stabilized with gemini surfactants, by controlling the drop casting conditions Au@AgNRs (length = 71