Birefringent Crystals in a Pulmonary Specimen
نویسندگان
چکیده
منابع مشابه
Birefringent crystals in a lung cavity.
Figure 2. Birefringent crystals observed during biopsy of bronchial samples (original magnification, ϫ100). Figure 3. Gomori methemanine silver stain showing fragments of fungal hyphae (original magnification, ϫ200). Figure 1. CT scan of the chest showing right upper lung cavity Diagnosis: Pulmonary aspergillosis with calcium oxalate crystals. Radiography of the patient's chest showed a right u...
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A method for time differentiation based on a Babinet-Soleil-Bravais compensator is introduced. The complex transfer function of the device is measured using polarization spectral interferometry. Time differentiation of both the pulse field and pulse envelope are demonstrated over a spectral width of about 100 THz with a measured overlap with the objective mode greater than 99.8%. This pulse sha...
متن کاملGroup-velocity-matched three-wave mixing in birefringent crystals.
It is shown that the combination of pulse-front slant, kappa -vector tilt, and crystal birefringence often permits exact matching of both phase and group velocities for three-wave mixing in birefringent crystals. This exact match makes possible more-efficient mixing of short light pulses, and it permits efficient mixing of chirped or broadband light. I analyze this process and present examples.
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The high degree of ultrastructural organization of microtubular crystals (1, 2) produced in mammalian cells by incubation with Vinca alkaloids, suggested that these crystals would be birefringent in polarized light. We now report the induction by vinblastine sulfate (VBL) of birefringent crystals in unfertilized oocytes of the starfish Pisaster ochraceous . Mature ovaries were removed, placed i...
متن کاملMost calcium pyrophosphate crystals appear as non-birefringent.
OBJECTIVE To determine the proportion of calcium pyrophosphate dihydrate (CPPD) crystals that appear as non-birefringent when observed under the polarised light microscope. METHODS Two observers examined independently 10 synovial fluid samples obtained during an episode of arthritis attributable to CPPD crystals. Ten synovial fluid samples from patients with acute gout were used as a referenc...
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ژورنال
عنوان ژورنال: Clinical Infectious Diseases
سال: 2002
ISSN: 1058-4838,1537-6591
DOI: 10.1086/324624