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Your search keyword '"Xu, S.L."' showing total 27 results
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27 results on '"Xu, S.L."'

19. From confined spinons to emergent fermions: Observation of elementary magnetic excitations in a transverse-field Ising chain

Author

Wang, Z, Wu, J.D., Xu, S.L., Yang, W, Wu, C.J., Bera, A.K., Islam, A., Lake, B., Kamenskyi, D., Gogoi, P., Engelkamp, H., Wang, N.L., Deisenhofer, J., Loidl, A., Wang, Z, Wu, J.D., Xu, S.L., Yang, W, Wu, C.J., Bera, A.K., Islam, A., Lake, B., Kamenskyi, D., Gogoi, P., Engelkamp, H., Wang, N.L., Deisenhofer, J., and Loidl, A.

Abstract

Contains fulltext : 161500.pdf (publisher's version ) (Open Access)

Published
2016

20. Respiratory syncytial virus immunisation in a level III NICU-6 year audit of clinical practise.

Author

Tan K., Xu S.L., Kostanas D., Korman T., Buttery J., Tan K., Xu S.L., Kostanas D., Korman T., and Buttery J.

Abstract

Background: Palivizumab immunisation for high-risk infants typically occurs after hospital discharge, as per international guidelines. As our Level III NICU is close to 3-decades old; there is a lack of isolation facilities for infants with infections. In 2008, we instituted a policy of providing palivizumab for inpatient NICU infants with high risk factors, to try to decrease the risk of nosocomial RSV infection. A report, however, had shown that inpatient RSV immunisation had no impact on nosocomial RSV rates.1 We audited our practise in this study. Method(s): We conducted a retrospective review (2008-2013) of our palivizumab immunisation from our NICU and pharmacy databases. MT-PCR for respiratory viruses (including RSV) was introduced in 2009. The microbiological database (from mid-2009 to 2013) was also interrogated. Result(s): Over a 6-year period, 175 infants (gestational age 27 IQR25-30) weeks, birthweight 889 (IQR704-1209) grams were immunised in our NICU. No mortality directly attributable to RSV was identified. 207 respiratory virus MT-PCR were ordered from the NICU of which 19 positive were positive for RSV, giving an average rate of 3 cases per annum. Conclusion(s): As the prevalence rate of RSV infection in our NICU is low, there is rationale for reviewing our policy of inpatient RSV immunisation.

Published
2015

23. Quality assessment of a formulated Chinese herbal decoction, Kaixinsan, by using rapid resolution liquid chromatography coupled with mass spectrometry: A chemical evaluation of different historical formulae

Author

Zhu, Kevin Yue, Fu, Qiang, Xie, Heidi Qunhui, Xu, S.L., Cheung, Anna Wing Han, Zheng, Ken Yu Zhong, Luk, W.K.W., Choi, Roy Chi Yan, Lau, David Tai Wai, Dong, Tina Ting Xia, Jiang, Z.Y., Chen, J.J., Tsim, Karl Wah Keung, Zhu, Kevin Yue, Fu, Qiang, Xie, Heidi Qunhui, Xu, S.L., Cheung, Anna Wing Han, Zheng, Ken Yu Zhong, Luk, W.K.W., Choi, Roy Chi Yan, Lau, David Tai Wai, Dong, Tina Ting Xia, Jiang, Z.Y., Chen, J.J., and Tsim, Karl Wah Keung

Abstract

Kaixinsan is an ancient Chinese herbal decoction mainly prescribed for patients suffering from mental depression. This decoction was created by Sun Si-miao of Tang Dynasty (A.D. 600) in ancient China, and was composed of four herbs: Radix and Rhizome Ginseng, Radix Polygalae, Rhizoma Acori Tatarinowii and Poria. Historically, this decoction has three different formulations, each recorded at a different point in time. In this study, the chemical compositions of all three Kaixinsan formulae were analyzed. By using rapid resolution LC coupled with a diode-array detector and an ESI triple quadrupole tandem MS (QQQ-MS/MS), the Radix and Rhizome Ginseng-derived ginsenosides including Rb1, Rd, Re, Rg1, the Radix Polygalae-derived 3,6′-disinapoyl sucrose, the Rhizoma Acori Tatarinowii-derived α- and β-asarone and the Poria-derived pachymic acid were compared among the three different formulations. The results showed variations in the solubility of different chemicals between one formula and the others. This systematic method developed could be used for the quality assessment of this herbal decoction. Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Published
2010

26. Rovibrational Spectroscopy of C35Cl<SUB>4</SUB>

Author

Xu, S.L., Mcdowell, R.S., Sharpe, S.W., and Krohn, B.J.

Abstract

High-resolution rotationally resolved infrared spectra of the spherical-top rotor C35Cl4 (in samples of natural isotopic composition) were obtained both in static cells by FTIR spectroscopy (ν4, ν1 + ν4) and in a supersonically cooled expansion with tunable diode lasers (ν3). For the ν3 fundamental at 799 cm−1, quantum assignments were made for individual transitions from P(20) to R(24), and the partially resolved Q branch was matched with synthesized spectra. The bands ν4 (316 cm−1) and ν1 + ν4 (774 cm−1) exhibit much reduced manifold splitting, and scalar fits were made to the R(24)-R(70) and P(38)-R(56) frequencies, respectively. The ν3/(ν1 + ν4) Fermi dyad yields Coriolis constants ζ3 = 0.621 and ζ'4 = −0.145 that satisfy the harmonic sum rule, but are perturbed by the Fermi resonance and are inconsistent with intramolecular force fields previously reported based on isotope shifts in matrix spectra. The true bending-mode Coriolis constant ζ4 = −0.414, obtained from analysis of the isolated and unperturbed ν4 band, agrees well with the isotope shifts. CCl4 and other tetrahedral XY4 molecules are shown to vibrate according to a simple vector-displacement normal-mode model for which ζ3 ≈ 4/[3(mx/my) + 4].Copyright 1995, 1999 Academic Press, Inc.

Published
1995
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