Transformation of PEI to the Polymer Having Water-Crosslinkable Function Using Silane Couplers Having Isothiocyanato Group

On group Elements Having Square Roots

on group elements having square roots

Quantum Lorentz group having Gauss decomposition property

A new deformation of SL(2,C) (considered as a real Lie group) is constructed and shown to have a Gauss type decomposition. The groups entering this decomposition are identified as Eμ(2) and its Pontryagin dual Êμ(2). The whole group is the double group built over Eμ(2).

Having the heart to fly

25 Interpretations on the origin of sustained flight in birds are mainly driven by biomechanical 26 studies from fossil evidence and have largely neglected how the metabolic requirements of 27 flight would have been supported. We studied tinamous, a taxon of flying palaeognathous 28 birds with the smallest heart among birds to evaluate the hypothesis that heart size restricts 29 aerobic perform...

Click construction of spiro- and bridged-quatrefoil polymer topologies with kyklo-telechelics having an azide group.

Unprecedented tetracyclic polymer topologies with spiro- and a bridged-type quatrefoil forms are effectively constructed through an alkyne-azide, click-linking reaction by employing a kyklo-telechelic poly(tetrahydrofuran), poly(THF), precursor having an azide group, obtained through an electrostatic self-assembly and covalent fixation (ESA-CF) process, and complementary tetrafunctional alkyne ...