Darkfield

Darkfield

A technique of microscope examination in which light is directed at an oblique angle through the slide so that organisms look bright against a dark background.
Mentioned in: Syphilis
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Combined synopsis/solicitation:upright epi-fluorescence darkfield microscope system imaging system
Darkfield anomalies which resembled a colon in his interpretation were related to colon pathology, thyroid to thyroid, liver to liver etc.
With two ring sizes, multiple colours and embedded features such as sector control, overdrive strobing functions, and reflector attachments, the user can create ring, dome, low angle and darkfield illuminations with just a few part numbers, greatly simplifying the illumination selection process.
maternal titer > mother's maternal titer Darkfield N/A test or PCR Positive Maternal N/A None documented, treatment status non-penicillin G regimen, or given <4 weeks prebirth Evaluation needed Complete Complete * CSF VDRL, WBC, protein VDRL, WBC, protein Blood testing CBC with differential CBC with differential and platelet count and platelet count Other tests as indicated Chest, long bones Long bones Radiographs Liver function tests None Other blood testing Brain imaging, None Neurologic hearing test, eye examination Congenital syphilis Less likely Unlikely Defining factors Both defining Both defining factors below factors below Physical examination Normal examination Nontreponemal RPR/ [less than or equal to] to fourfold VDRL infant titer above maternal titer vs.
Darkfield is a theatre company making shows in shipping containers which explore fear and anxiety.
Particles were visualized using CytoViva[R] Darkfield imaging, but not by using SEM, as no metal was detected within organs by EDS (data not shown).
The Logitech MX Master 2S and MX Anywhere 2S both feature improved Darkfield High Precision tracking.
The light source is a 150 W halogen light source connected to the CytoViva high resolution illuminator which is a highly collimated darkfield condenser, similar to systems used in previous NP-SPR darkfield studies [38, 39].
The modular design is compatible with many accessories for clinical research, fluorescence, phase contrast, and darkfield applications.
Images were collected in darkfield mode with 1.2-nm pixel resolution, as previously described (Chen et al., 2008).
Darkfield microscopy or staining with acridine orange might be required to increase sensitivity.
(8,45,46) Caveats in C4d interpretation in kidney biopsies include antibody reactivity with tubular basement membranes, which can occasionally be difficult to distinguish from peritubular capillaries, especially with darkfield IF.