We developed a technique, in vivo binding of immunoglobulins in the platelet immunofluorescence t... more We developed a technique, in vivo binding of immunoglobulins in the platelet immunofluorescence test (IVBI-PIFT), that detects immunoglobulins bound in vivo to transfused platelets. The visually scored results of this technique, however, are susceptible to interobserver variation. We describe a more objective method to generate results in IVBI-PIFT. We studied 201 samples in 120 patients with hematologic malignancies in the IVBI-PIFT. Histogram subtraction, i.e., fluorescence (anti-immunoglobulin G and fluorescein isothiocyanate) histogram before platelet transfusion subtracted from the histogram after platelet transfusion, was compared with visual scoring (pattern 1: no enhanced fluorescence before and after transfusion; pattern 2: enhanced fluorescence before and after platelet transfusion; pattern 3: enhanced fluorescence before transfusion; pattern 4: enhanced fluorescence after transfusion, interpreted as alloimmunization). After histogram subtraction, the number of remaining e...
We report the serendipitous detection in high-resolution optical spectroscopy of a strong, asymme... more We report the serendipitous detection in high-resolution optical spectroscopy of a strong, asymmetric Lyalpha emission line at z=5.190. The detection was made in a 2.25 hr exposure with the Echelle Spectrograph and Imager on the Keck II telescope through a spectroscopic slit of dimensions 1''×20''. The progenitor of the emission line, J123649.2+621539 (hereafter ES1), lies in the Hubble Deep Field-North
We select galaxies with extreme star formation rates (SFR > 200 solar ... more We select galaxies with extreme star formation rates (SFR > 200 solar masses per year) in a volume-limited (0.1 < z < 0.3) sample from the Brinchmann et al. (2004) study of star-forming galaxies in the local Universe. Such galaxies are predicted to have infrared (IR) luminosities greater than 10^12 solar luminosities, and as such are the optically-selected counterparts to
We developed a technique, in vivo binding of immunoglobulins in the platelet immunofluorescence t... more We developed a technique, in vivo binding of immunoglobulins in the platelet immunofluorescence test (IVBI-PIFT), that detects immunoglobulins bound in vivo to transfused platelets. The visually scored results of this technique, however, are susceptible to interobserver variation. We describe a more objective method to generate results in IVBI-PIFT. We studied 201 samples in 120 patients with hematologic malignancies in the IVBI-PIFT. Histogram subtraction, i.e., fluorescence (anti-immunoglobulin G and fluorescein isothiocyanate) histogram before platelet transfusion subtracted from the histogram after platelet transfusion, was compared with visual scoring (pattern 1: no enhanced fluorescence before and after transfusion; pattern 2: enhanced fluorescence before and after platelet transfusion; pattern 3: enhanced fluorescence before transfusion; pattern 4: enhanced fluorescence after transfusion, interpreted as alloimmunization). After histogram subtraction, the number of remaining e...
We report the serendipitous detection in high-resolution optical spectroscopy of a strong, asymme... more We report the serendipitous detection in high-resolution optical spectroscopy of a strong, asymmetric Lyalpha emission line at z=5.190. The detection was made in a 2.25 hr exposure with the Echelle Spectrograph and Imager on the Keck II telescope through a spectroscopic slit of dimensions 1''×20''. The progenitor of the emission line, J123649.2+621539 (hereafter ES1), lies in the Hubble Deep Field-North
We select galaxies with extreme star formation rates (SFR > 200 solar ... more We select galaxies with extreme star formation rates (SFR > 200 solar masses per year) in a volume-limited (0.1 < z < 0.3) sample from the Brinchmann et al. (2004) study of star-forming galaxies in the local Universe. Such galaxies are predicted to have infrared (IR) luminosities greater than 10^12 solar luminosities, and as such are the optically-selected counterparts to
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Papers by Wim de Vries