Journal of Polymer ScienceVolume 59, Issue 9 p. i-i COVER IMAGEFree Access Cover Image, Volume First published: 01 May 2021 https://doi.org/10.1002/pol.20210264AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text full-text accessPlease review our Terms and Conditions Use check box below share version article.I have read accept the W...

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We prove that for n ≥ 4, a fiber product of n-chromatic graphs over n-colourings can have chromatic number strictly less than n. This refutes a conjecture of Y. Carbonneaux, S. Gravier, A. Khelladi, A. Semri, Coloring fiber product of graphs. AKCE Int. J. Graphs Comb. 3 (2006), 59–64.

We describe a geometric picture for the pattern of fermion masses of the three generations which is invariant with respect to the renormalization group below the electroweak scale. Moreover, we predict the upper limit for the ratio between the Dirac masses of the and neutrinos, m =m (9:6 0:6) 10 . The Standard Model [1, 2] of strong and electroweak interactions describes accurately all the obse...

A new worm eel, Neenchelys andamanensis, is described based on a single specimen collected from a depth of 520-531 m, Andaman Sea, eastern Indian Ocean. The new species is similar to N. daedalus, N. nudiceps, and N. similis in its total vertebral count and slender body, however, it differs from the latter three in having a shorter tail (60% TL vs. 70-76%), more numerous preanal vertebrae (77 vs...