Results 11 to 20 of about 43 (43)

1-Sylvester matrices

open access: yesSpecial Matrices
A nonzero element aa is called 1-Sylvester in a ring RR, if there exist b,c∈Rb,c\in R such that 1=ab+ca1=ab+ca. In this article, we study such elements, mainly in matrix rings over commutative rings.
Călugăreanu Grigore
doaj   +1 more source

Pygmalion and His Ivory Maiden in Twenty-first Century Science Fiction

open access: yesDictynna
This paper explores how one manufactured woman in Greco-Roman myth, Pygmalion's ivory maiden in Ovid's Metamorphoses, has shaped the production of synthetic women in recent science fiction.
Hunter H. Gardner
doaj   +1 more source

Universal realizability of left half-plane spectra

open access: yesSpecial Matrices
A list Λ={λ1,λ2,…,λn}\Lambda =\left\{{\lambda }_{1},{\lambda }_{2},\ldots ,{\lambda }_{n}\right\} of complex numbers is said to be realizable if it is the spectrum of an entrywise nonnegative matrix AA. The list Λ\Lambda is diagonalizably realizable (Dℛ{
Soto Ricardo L.   +2 more
doaj   +1 more source

Support for e-cigarette regulations among Australian young adults. [PDF]

open access: yesBMC Public Health, 2019
Jongenelis MI   +3 more
europepmc   +1 more source

Depressive disorders during weaning from prolonged mechanical ventilation. [PDF]

open access: yesIntensive Care Med, 2010
Jubran A   +8 more
europepmc   +1 more source

Tracking fungal community responses to maize plants by DNA- and RNA-based pyrosequencing. [PDF]

open access: yesPLoS One, 2013
Kuramae EE   +6 more
europepmc   +1 more source

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