The Experts below are selected from a list of 258 Experts worldwide ranked by ideXlab platform

J. B. J. Soons - One of the best experts on this subject based on the ideXlab platform.

  • Haemodialysis-induced changes in red blood cell size-distribution histograms.
    Scandinavian journal of clinical and laboratory investigation, 1991
    Co-Authors: P. C. Bartels, P. W. Helleman, J. B. J. Soons
    Abstract:

    Treatment by haemodialysis may result in changes of the red blood cell size-distribution histograms in most subjects. After maintenance haemodialysis a statistically significant shift to the left is observed for the mean size distribution histogram in a group consisting of sixteen women. The shift is in agreement with the finding of significantly higher values for the Microcyte fraction, as well as with significantly lower mean cell volume (MCV) values. No significant changes were observed for the macrocytic fractions of red blood cells.

P. C. Bartels - One of the best experts on this subject based on the ideXlab platform.

  • Haemodialysis-induced changes in red blood cell size-distribution histograms.
    Scandinavian journal of clinical and laboratory investigation, 1991
    Co-Authors: P. C. Bartels, P. W. Helleman, J. B. J. Soons
    Abstract:

    Treatment by haemodialysis may result in changes of the red blood cell size-distribution histograms in most subjects. After maintenance haemodialysis a statistically significant shift to the left is observed for the mean size distribution histogram in a group consisting of sixteen women. The shift is in agreement with the finding of significantly higher values for the Microcyte fraction, as well as with significantly lower mean cell volume (MCV) values. No significant changes were observed for the macrocytic fractions of red blood cells.

Gareth W. Griffith - One of the best experts on this subject based on the ideXlab platform.

  • Differentiation of Phytophthora infestans sporangia from other airborne biological particles by flow cytometry
    Applied and environmental microbiology, 2002
    Co-Authors: Jennifer P. Day, Douglas B. Kell, Gareth W. Griffith
    Abstract:

    The ability of two different flow cytometers, the Microcyte (Optoflow) and the PAS-III (Partec), to differentiate sporangia of the late-blight pathogen Phytophthora infestans from other potential airborne particles was compared. With the PAS-III, light scatter and intrinsic fluorescence parameters could be used to differentiate sporangia from conidia of Alternaria or Botrytis spp., rust urediniospores, and pollen of grasses and plantain. Differentiation between P. infestans sporangia and powdery mildew conidia was not possible by these two methods but, when combined with analytical rules evolved by genetic programming methods, could be achieved after staining with the fluorescent brightener Calcofluor white M2R. The potential application of these techniques to the prediction of late-blight epiphytotics in the field is discussed. Current methods for predicting the occurrence of late-blight of potato (Phytophthora infestans) rely on climatic modeling to identify conditions conducive to pathogen reproduction and thus to disease spread (5). Such methods can provide considerable savings to growers, as well as environmental benefits. For United Kingdom potato production, calendar spraying is normal practice, with sprays commencing when the crop canopy has closed and continuing at 7- to 10-day intervals until crop desiccation or harvest. Use of forecasting models can reduce the number of required sprays by allowing a delay in the first fungicide application and/or an extension of the interval between subsequent sprays (e.g., references 25 and 28).

  • Differentiation of Phytophthora infestans Sporangia from Other Airborne Biological Particles by Flow Cytometry
    2001
    Co-Authors: Jennifer P. Day, Douglas B. Kell, Gareth W. Griffith
    Abstract:

    The ability of two different flow cytometers, the Microcyte (Optoflow) and the PAS-III (Partec), to differentiate sporangia of the late-blight pathogen Phytophthora infestans from other potential airborne particles was compared. With the PAS-III, light scatter and intrinsic fluorescence parameters could be used to differentiate sporangia from conidia of Alternaria or Botrytis spp., rust urediniospores, and pollen of grasses and plantain. Differentiation between P. infestans sporangia and powdery mildew conidia was not possible by these two methods but, when combined with analytical rules evolved by genetic programming methods, could be achieved after staining with the fluorescent brightener Calcofluor white M2R. The potential application of these techniques to the prediction of late-blight epiphytotics in the field is discussed

P. W. Helleman - One of the best experts on this subject based on the ideXlab platform.

  • Haemodialysis-induced changes in red blood cell size-distribution histograms.
    Scandinavian journal of clinical and laboratory investigation, 1991
    Co-Authors: P. C. Bartels, P. W. Helleman, J. B. J. Soons
    Abstract:

    Treatment by haemodialysis may result in changes of the red blood cell size-distribution histograms in most subjects. After maintenance haemodialysis a statistically significant shift to the left is observed for the mean size distribution histogram in a group consisting of sixteen women. The shift is in agreement with the finding of significantly higher values for the Microcyte fraction, as well as with significantly lower mean cell volume (MCV) values. No significant changes were observed for the macrocytic fractions of red blood cells.

Naomi Meyerstein - One of the best experts on this subject based on the ideXlab platform.

  • CONDUCTOMETRIC STUDY OF ERYTHROCYTES DURING CENTRIFUGATION. I: SIZE DISTRIBUTION OF ERYTHROCYTES$
    Biochimica et Biophysica Acta, 1995
    Co-Authors: A. Pribush, Dan Meyerstein, Naomi Meyerstein
    Abstract:

    Abstract Sedimentation of hardened erythrocytes in a centrifugal field was studied by time recording of the current chamber in the longitudinal and the transversal directions relative to the cells' movement. The results clearly indicate the existence of an erythrocyte concentration profile during centrifugation. The rates of both longitudinal and transversal current alteration increase with centripetal acceleration and with falling cell concentration. The pellet formed from hardened cells represents virtually incompressible body. It is shown that erythrocyte shape affects the pellet conductivity. Analysis of the data using the modified Stokes' law enables calculation of the cell size distribution. The modal size of macrocytes, normal erythrocytes and two samples of Microcytes thus measured was 3.40, 3.01, 2.63 and 2.83 μm, respectively. These data demonstrate that conductometric analysis is useful for investigating abnormalities in erythrocyte size.