A synthetic approach for achieving redox amphoteric molecules is shown. Materials characterization indicates a complex electronic scenario that goes beyond the cumulative effects of independent molecular units constituting assembly.

Conventional physical dogma, justified by the local success of Newtonian dynamics for particles, assigns a Euclidean metric with signature (plus, plus, plus) to the three spatial dimensions. Minimal surfaces are of zero mean curvature and negative Gauss curvature in a Euclidean space, which supports affine evolutionary processes. However, experimental evidence now indicates that the non-affine ...

A compact, highly sensitive optical fiber displacement and curvature radius sensor is presented. The device consists of an adiabatic bi-conical fused fiber taper spliced to a single-mode fiber (SMF) segment with a flat face end. The bi-conical taper structure acts as a modal coupling device between core and cladding modes for the SMF segment. When the bi-conical taper is bent by an axial displa...

OBJECTIVE To assess if the risk of first-time salpingectomy was affected by prior hysterectomy with retained fallopian tubes and by prior sterilisation. DESIGN A historical cohort study. SETTING Denmark. PARTICIPANTS 170 000 randomly selected women born 1947-1963 (10 000/year) were followed from 1977 until the end of 2010. MAIN OUTCOME MEASURES Effect of hysterectomy with retained fallo...

The paper presents the results of research work to assess thermal conductivity mortar incorporating a novel carbon-based nano-material (CBN). data from laboratory tests served as starting point in training an artificial neural network (ANN) based on Levenberg–Marquardt backpropagation algorithm that was used predict values at later ages. CBNs were essential precursors multi-walled carbon nano-t...

An aryl-end-capped dodecayne has been prepared using a four-fold fluoride-mediated dechlorosilylation of a masked dodecayne precursor containing four beta-chlorovinylsilane residues that serve as masked alkynes; the unstable dodecayne product has been characterised by UV-vis absorption spectroscopy and 'matrix-free' MALDI-TOF mass spectrometry.

Three derivatives of thieno[3,2-b]thiophene end-capped with phenyl units have been synthesized and characterized by MALDI TOF mass spectroscopy, elemental analysis, UV-vis absorption spectroscopy and thermogravimetric analysis (TGA). All compounds were prepared using Pd-catalyzed Stille or Suzuki coupling reactions. Optical measurements and thermal analysis revealed that these compounds are pro...

It has long been surmised that cellular microtubules are capped at the minus ends to prevent their depolymerization. A recent study provides the first definitive identification of a minus-end-specific capping protein, termed Patronin, which protects the microtubule arrays of both mitotic and interphase cells.