Mar damage

To prevent the carryover of water droplets, which can mar many industrial process activities or cause damage to superheaters and turbine blades. 

The 114 Kd protein PARP, exclusively found as a mixture with DNA-PK has been implicated in repair after DNA damage. Evidences show that PARP and Ku 70/86 interact together and synergistically enhance their binding to DNA (IgH MARs)... 

Abrasion resistance usually takes the form of a scratch test, in which the material is subjected to many scratches, usually from contact with an abrasive wheel or a stream of falling abrasive material. The degree of abrasion can be determined by loss of weight for severe damage, but is usually measured by evidence of surface marring. 

D. Radiation Damage to Nitrate and the Viking Mars Mission... 

Mar-nett, L.J. Plastaras, J.P. (2001) Endogenous DNA damage and mutation. Trends Genet. 17, 214-221. 

Dionisio-Sese, M. L., Ishikura, M., Maruyama, T., and Miyachi, S., UV-absorbing substances in the tunic of a colonial ascidian protect its symbiont, Prochloron sp., from damage by UV-B radiation, Mar. Biol., 128, 455, 1997. 

Damage Larvae eat foliage of many trees and shrubs. Bags mar plant appearance. Use a knife to cut the silk from the twig if you tear the bag away, you ll leave a coil of tightly wound silk ready to girdle the twig. 

Symptoms Hard, brown swellings appear on branch tips. These galls do not seriously damage cedar trees, but they can mar the plants appearance. Warm, moist weather in spring causes these galls to swell dramatically, and they produce gelatinous horns that release rust-colored spores. The spores then infect apple trees. For more details about this disease on apples, see Cedar-Apple Rust on page 373. 

Livingstone, D.R. (2001) Contaminant-stimulated reactive oxygen species production and oxidative damage in aquatic organisms. Mar. Poll. Bull., 42, 656-666. 

Steinert, S.A., Streib Montee, R. and Sastre, M.P. (1998) Influence of sunlight on DNA damage in mussels exposed to polycyclic aromatic hydrocarbons. Mar. Environ. Res., 46, 355-358. 

Rotchell, J.M., R.M. Stagg and J.A. Craft. Chemically-induced genetic damage in fish isolation and characterization of the dab (Limanda limanda) ras gene. Mar. Pollut. Bull. 31 457—459, 1995. 

Payne, J., D. Malins, S. Gunselman, A. Rahimtula and P. Yeats. DNA oxidative damage and vitamin A reductions in fish from a large lake system in Labrador, Newfoundland, contaminated with iron-ore mine tailings. Mar. Environ. Res. 46 289-294, 1998. 

P. Boelen, M.K. de Boer, G.W. Kraay, M.J.W. Veldhuis, A.G.J. Buma (2000). UVBR induced DNA damage in natural marine picoplankton assemblages in the tropical Atlantic Ocean. Mar. Ecol. Progr. Ser., 193,1-9. 

Rijstenbil JW, Derksen JMW, Poortvliet TCW et al. Oxidative stress induced by copper Defense and damage in the marine planktonic diatom Ditylum brightwellii, grown in continuous cultures with high and low zinc levels. Mar Biol 1994 119(4) 583-590. 

---