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Erdheim–Chester disease (ECD) is an extremely rare disease characterized by the abnormal multiplication of a specific type of white blood cells called histiocytes, or tissue macrophages (technically, this disease is termed a non-Langerhans-cell histiocytosis). It was declared a histiocytic neoplasm by the World Health Organization in 2016. [1]
ECD was founded with $5,000 of capital; its first product was the C-meter, a capacitance meter with a liquid-crystal readout, [6] released in spring 1975. [7] The C-meter sold well and allowed the company to move onto their second project, a portable digital thermometer that ran on batteries. [6]
An electrochromic device (ECD) controls optical properties such as optical transmission, absorption, reflectance and/or emittance in a continual but reversible manner on application of voltage (electrochromism). This property enables an ECD to be used for applications like smart glass, electrochromic mirrors, and electrochromic display devices.
ECD produces significantly different types of fragment ions (although primarily c- and z-type, b-ions have been identified in ECD [9]) than other MS/MS fragmentation methods such as electron-detachment dissociation (EDD) (primarily a and x types), [10] [11] [12] collision-induced dissociation (CID) (primarily b [13] and y type) and infrared ...
Medium (145°F/63°C) • 4–5 minutes per side • The center will have a slight pink color. Medium-well (155°F/68°C) • 5–6 minutes per side • The center will be mostly brown with a hint ...
Here are 5 things the NFL star has learned since his sudden cardiac arrest. Kerry Justich. October 8, 2024 at 4:23 PM. Damar Hamlin advocates for AED accessibility and education. (Photo ...
Depending on the analyte, an ECD can be 10-1000 times more sensitive than a flame ionization detector (FID), and one million times more sensitive than a thermal conductivity detector (TCD). An ECD has a limited [clarification needed] dynamic range and finds its greatest application in analysis of halogenated compounds. [9]
The Nov. 5 election resulted in Republican control of the White House, with Donald Trump defeating Democrat Kamala Harris, and of both chambers of Congress. While Republicans have promised an ...