nitrogen mustard

(redirected from MOPP)
Also found in: Dictionary, Thesaurus, Medical, Financial, Acronyms, Wikipedia.

nitrogen mustard,

any of various poisonous compounds originally developed for military use (see poison gaspoison gas,
any of various gases sometimes used in warfare or riot control because of their poisonous or corrosive nature. These gases may be roughly grouped according to the portal of entry into the body and their physiological effects.
..... Click the link for more information.
). Like mustard gas and lewisite, it is a vesicant (blistering agent). In the form of its crystalline hydrochloride it is used as a drug in the treatment of Hodgkin's diseaseHodgkin's disease,
a type of cancer of the lymphatic system. First identified in 1832 in England by Thomas Hodgkin, it is a type of malignant lymphoma. Incidence peaks in young adults and the elderly.
..... Click the link for more information.
, non-Hodgkin's lymphomaslymphoma, non-Hodgkin's,
any cancer of the lymphoid tissue (see lymphatic system) in which the Reed-Sternberg cells characteristic of Hodgkin's disease (the other category of lymphoma) are not present.
..... Click the link for more information.
, and brain tumors. Nitrogen mustards cause mutations in the genetic material of cells, thereby disrupting mitosis, or cell division. Cells vary in their susceptibility to nitrogen mustards, with rapidly proliferating tumor and cancer cells most sensitive; bone marrow, which produces red blood cells, is also sensitive, and depression of red blood cell production is a frequent side effect of nitrogen mustard therapy. The nitrogen mustards also suppress the immune response (see immunityimmunity,
ability of an organism to resist disease by identifying and destroying foreign substances or organisms. Although all animals have some immune capabilities, little is known about nonmammalian immunity.
..... Click the link for more information.
).
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

nitrogen mustard

[′nī·trə·jən ′məs·tərd]
(organic chemistry)
Any of the substituted mustard gases in which the sulfur is replaced by an amino nitrogen, such as for methyl bis(2-chlorethyl)amine, (CH2ClCH2)2NCH3; useful in cancer research.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Eyes with worse Eyes with better P MD MD value Mean IOP (mmHg) 14.8 [+ or -] 2.3 14.7 [+ or -] 2.3 0.051 SE (diopters) -3.77 [+ or -] 3.1 -3.48 [+ or -] 3.0 0.011 MD (dB) -5.20 [+ or -] 5.2 -2.22 [+ or -] 3.7 <0.001 PSD (dB) 7.52 [+ or -] 4.5 3.85 [+ or -] 3.4 <0.001 MBR (AU) 18.4 [+ or -] 4.1 19.5 [+ or -] 4.8 0.001 MOPP (mmHg) 43.6 [+ or -] 8.6 43.7 [+ or -] 8.6 0.168 CCT ([micro]m) 526.8 [+ or -] 31.3 528.3 [+ or -] 31.5 0.194 The data are given as mean [+ or -] SD; values in bold are statistically significant (P <0.05).
However, our study design included parameters much different from the reference [2] research--we took the mean and standard deviation of maximum and minimum IOP, SBP, DBP, and MOPP and mean thereof but not taken mean IOP (averaging maximum and minimum) and so on as our parameters.
In order to compare the robustness and calculation efficiency of the ABC algorithm, the MOPP problem is solved for IEEE 14 bus system using typical GA and PSO algorithm.
All heat stress tests started after a 20-minute rest period when the subjects were seated within the environmental chamber, in MOPP suits, while doing no work.
Table 3 shows the correlations between [MBR.sub.A] of the entire optic disc, age, IOP, MOPP, and systemic parameters.
CBRN officers verify those reports and advise units when to don mission-oriented protective posture (MOPP) gear or continue to monitor with the Joint Chemical Agent Detector.
These 300W minimum power supplies offer a universal input range, LED indication and 2x MOPP isolation.
Prosecutor Adrian Mopp is expected to present his side of the argument.
Prosecutor Adrian Mopp told the court Dewani had revealed to Leisser that he was about to be engaged to Anni, and could not find a way out.
Features include Class I and Class II medical grade units that accept a 90-264 VAC input, available with either a C14 or C8 AC input, encased in compact (7.76" x 3.46" x 1.74") UL 94 V-0 rated case, features high efficiency, over-voltage, short-circuit, and overpower protection, a 0[degrees]C to 40[degrees]C operatingtemperature range, [+ or -] 0.5 percent line regulation, and 2 MOPP (means of patient protection) 4,000 VAC input to output isolation.
SHE will be the most glamorous, and richest, Mrs Mopp in history...
Participants exercised in three different environments while wearing chemical defense clothing (MOPP-0, 2, and 4; MOPP = Mission Oriented Protective Posture; Table 1).