Abstract Introduction The COVID-19 pandemic has affected millions of parent in the United States by creating physical health-related stress, changes to work and parenting demands, possibility losing a job or not being able pay bills (Brooks et al., 2020). Such stressors have potential disrupt parents’ basic, essential needs, such as sleep (e.g., Sadeh 2004). Although ample research suggests tha...

Two dimensional massless Quantum Chromodynamics presents many features which resemble those of the true theory. In particular the spectrum consists of mesons and baryons arranged in flavor multiplets without parity doubling. We analyze the implications of chiral symmetry, which is not spontaneously broken in two dimensions, in the spectrum and in the quark condensate. We study how parity doubli...

© 2015 Shang et al. Open accessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License(http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium,provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license,and indicat...

We report the discovery of a spectacular \post-starburst quasar" UN J1025?0040 (B = 19; z = 0:634). The optical spectrum is a chimera, displaying the broad Mg II 2800 emission line and strong blue continuum characteristic of quasars, but is dominated in the red by a large Balmer jump and prominent high-order Balmer absorption lines indicative of a substantial young stellar population at similar...

Quantum search is a quantum mechanical technique for searching N possibilities in only √ N steps. We show that the algorithm can be described as a resonance phenomenon. A similar algorithm applies in a purely classical setting when there are N oscillators, one of which is of a different resonant frequency. We could identify which one this is by measuring the oscillation frequency of each oscill...