Z. G. Zhao

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Sleep is regulated by complex biological systems and environmental influences, neither of which is fully clarified. This study demonstrates differential effects of partial sleep deprivation (SD) on sleep architecture and psychomotor vigilance task (PVT) performance using two different protocols (sequentially) that each restricted daily sleep to 3 hours in(More)
The Belle detector was designed and constructed to carry out quantitative studies of rare B-meson decay modes with very small branching fractions using an asymmetric e þ e À collider operating at the U(4S) resonance, the KEK-B-factory. Such studies require data samples containing B10 7 B-meson decays. The Belle detector is configured around a 1:5 T(More)
Glucosinolate and erucic acid are important plant compounds in rapeseed believed to have numerous functions in rapeseed-environment interactions. However, little is known about the QTL information related to the two different genetic systems including the embryo nuclear chromosomes and maternal plant nuclear chromosomes for glucosinolate content (GSLC) and(More)
Using a sample of 58 million J/ψ events recorded in the BESII detector, the decay J/ψ → ωπ + π − is studied. There are conspicuous ωf 2 (1270) and b 1 (1235)π signals. At low ππ mass, a large broad peak due to the σ is observed, and its pole position is determined to be (541 ± 39)-i (252 ± 42) MeV from the mean of six analyses. The errors are dominated by(More)
  • F Loehl, I Bazarov, S Belomestnykh, M Billing, E Chojnacki, Z Conway +19 others
  • 2010
The development of high current, high brightness electron guns is critically important for free-electron laser and energy recovery linear-accelerator light source facilities. In this paper, we will review the technical requirements of such projects and the status of ongoing research throughout the community including results of emittance measurements and(More)
An 8-wk experiment was conducted to evaluate the effect of replacing fish meal (FM) with soy protein isolate (SPI) on the growth, digestive enzyme activity and serum biochemical parameters of juvenile Amur sturgeon (Acipenser schrenckii). SPI was used to replace 0, 25, 50, 62.5, 75, 87.5, 100% of dietary FM and 100% replacement supplemented crystalline(More)
We present a measurement of the azimuthal asymmetries of two charged pions in the inclusive process e^{+}e^{-}→ππX, based on a data set of 62  pb^{-1} at the center-of-mass energy of 3.65 GeV collected with the BESIII detector. These asymmetries can be attributed to the Collins fragmentation function. We observe a nonzero asymmetry, which increases with(More)
The two-photon transition c ð3686Þ ! J=c is studied in a sample of 1:06 Â 10 8 c ð3686Þ decays collected by the BESIII detector. The branching fraction is measured to be ð3:1 AE 0:6ðstatÞ þ0:8 À1:0 ðsystÞÞ Â 10 À4 using J=c ! e þ e À and J=c ! þ À decays, and its upper limit is estimated to be 4:5 Â 10 À4 at the 90% confidence level. This work represents(More)