• Publications
  • Influence
Single particle tracking. Analysis of diffusion and flow in two-dimensional systems.
Analysis of the trajectories of small particles at high spatial and temporal resolution using video enhanced contrast microscopy provides a powerful approach to characterizing the mechanisms ofExpand
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Oxygen-sensitive {delta}-opioid receptor-regulated survival and death signals: novel insights into neuronal preconditioning and protection.
The detrimental effect of severe hypoxia (SH) on neurons can be mitigated by hypoxic preconditioning (HPC), but the molecular mechanisms involved remain unclear, and an understanding of these mayExpand
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Beta diversity of angiosperms in temperate floras of eastern Asia and eastern North America
The diversity of a region reflects both local diversity and the turnover of species (beta diversity) between areas. The angiosperm flora of eastern Asia (EAS) is roughly twice as rich as that ofExpand
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Distribution of molecular aggregation by analysis of fluctuation moments.
  • H. Qian, E. Elson
  • Chemistry, Medicine
  • Proceedings of the National Academy of Sciences…
  • 1 July 1990
The fluorescence from an open volume of a solution of fluorescent molecules fluctuates as the molecules randomly diffuse into and out of the volume. The distribution of degrees of aggregation orExpand
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Rapid Hypoxia Preconditioning Protects Cortical Neurons From Glutamate Toxicity Through δ-Opioid Receptor
Background and Purpose— Hypoxia preconditioning (HPC), rapid or delayed, has been reported to induce neuroprotection against subsequent severe stress. Because δ-opioid receptor (DOR) plays anExpand
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The latitudinal gradient of beta diversity in relation to climate and topography for mammals in North America
Aim Spatial turnover of species, or beta diversity, varies in relation to geographical distance and environmental conditions, as well as spatial scale. We evaluated the explanatory power of distance,Expand
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A comparison of MS/MS‐based, stable‐isotope‐labeled, quantitation performance on ESI‐quadrupole TOF and MALDI‐TOF/TOF mass spectrometers
The peptide‐based quantitation accuracy and precision of LC‐ESI (QSTAR Elite) and LC‐MALDI (4800 MALDI TOF/TOF) were compared by analyzing identical Escherichia coli tryptic digests containingExpand
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Analysis of confocal laser-microscope optics for 3-D fluorescence correlation spectroscopy.
Quantitative fluorescence correlation spectroscopy (FCS) and fluorescence photobleaching recovery (FPR) measurements in bulk solution require a well characterized confocal laser microscope opticalExpand
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On the statistics of fluorescence correlation spectroscopy.
  • H. Qian
  • Chemistry, Medicine
  • Biophysical chemistry
  • 1 October 1990
I present a detailed statistical analysis of fluorescence correlation spectroscopy (FCS) which is a natural extension of an early work. This analysis more realistically takes account of the followingExpand
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Readmission Rates of Patients Discharged against Medical Advice: A Matched Cohort Study
Objective We compared the readmission rates and the pattern of readmission among patients discharged against medical advice (AMA) to control patients discharged with approval over a one-yearExpand
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