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<jats:title>Abstract</jats:title> <jats:p>As part of the Transient UV Objects project, we have discovered a new outburst (at the beginning of 2020 October) of the candidate cataclysmic variable (CV) ASASSN-18eh using the UV/Optical Telescope aboard the Neil Gehrels Swift Observatory. During the outburst its brightness increased by about 6 mag in UV compared to its brightness in the quiescent state. The properties of this outburst are consistent with it being a dwarf nova, strongly supporting the CV nature of ASASSN-18eh.</jats:p>

<jats:title>Abstract</jats:title> <jats:p>Via numerical experiments, we show that the ∼10%–20% passive fraction seen at <jats:italic>z</jats:italic> ≳ 3 is consistent with galaxy star formation histories being maximally correlated stochastic processes. If so, this fraction should reflect a time-independent baseline that holds at any epoch or mass regime where mean star formation rates are rising. Data at <jats:inline-formula> <jats:tex-math> <?CDATA $\mathrm{log}{M}_{* }\leqslant 10$?> </jats:tex-math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>log</mml:mi> <mml:msub> <mml:mrow> <mml:mi>M</mml:mi> </mml:mrow> <mml:mrow> <mml:mo>*</mml:mo> </mml:mrow> </mml:msub> <mml:mo>≤</mml:mo> <mml:mn>10</mml:mn> </mml:math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="rnaasabd317ieqn1.gif" xlink:type="simple" /> </jats:inline-formula> and <jats:italic>z</jats:italic> ≲ 0.5 bear this out, as should future James Webb Space Telescope observations.</jats:p>