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  1. No Access

    Article

    The success of elutriate tests in extended prediction of water quality after a dredging operation under freshwater and saline conditions

    Dredging simulation by elutriate tests accurately predicted concentrations of Hg, Cu, Mn and Fe released to the water column from contaminated sediment to within 1 order of magnitude. Hg and Cu concentrations ...

    S. C. Edwards, T. P. Williams, J. M. Bubb… in Environmental Monitoring and Assessment (1995)

  2. No Access

    Article

    Adaptation properties of the ERG in the grasshopper, Romalea microptera

    The grasshopper ERG displays a rapid recovery of responsivity following the onset of a background light. Although observed earlier in skate and frog, this phenomenon has not previously been seen in an inverteb...

    R. M. Bruckler, T. P. Williams in Biophysics of structure and mechanism (1981)

  3. No Access

    Chapter

    A Parametric Study of Retinal Light Damage in Albino and Pigmented Rats

    Although light serves as the adequate stimulus for vision, it can, under certain conditions, have a deleterious effect on the retina. Using rats as experimental animals, Noell et al. (1) were the first to demo...

    L. M. Rapp, T. P. Williams in The Effects of Constant Light on Visual Processes (1980)

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    Article

    Evidence for conformeric states of Rhodopsin

    Spectrophotometric measurements of metarhodopsin II appearance are made on five different kinds of rhodopsin preparations. Although the preparations differ greatly in their rhodopsin: phospholipid ratio, the m...

    J. G. Stewart, B. N. Baker, T. P. Williams in Biophysics of structure and mechanism (1977)

  5. No Access

    Chapter and Conference Paper

    Interconversion of Metarhodopsins

    When the highly colored visual pigments of the eye absorb light, they communicate this fact to the membrane of the receptor cell in which they reside. This process of converting the energy of absorbed light in...

    T. P. Williams, B. N. Baker, D. J. Eder in Biochemistry and Physiology of Visual Pigments (1973)

  6. No Access

    Article

    Limitations on the Use of the Concept of Quantum Efficiency in Rhodopsin Bleaching

    THE purpose of this communication is to discuss the extent to which the concept of quantum efficiency can be applied to the bleaching of rhodopsin. Quantum efficiency of bleaching, γ, is defined by: ...

    T. P. WILLIAMS in Nature (1966)