But it is serious enough that Secretary of State Colin L. Powell has become the prime agent of damage control.
The research presented here illustrates the usefulness of edge damage distribution analysis for accounting for taphonomic processes as causal agents of edge damage formation, and strengthening behavioral interpretations regarding tool function.
Significantly, no examples of spiral (green) fractures have been documented (Supplementary file 2), which indicates that post-depositional processes are the primary agents of skeletal damage.
In some urban areas, DEPs, widely regarded as major agents of oxidative damage to cells of the respiratory system (Boland et al. 1999; Bonvallot et al. 2001; Kawasaki et al. 2001; Li et al. 2002), comprise 10 30% of the PM2.5 and up to 50% of total ambient PM (U.S. EPA 2002).
Genetic toxicology tests are designed to detect chemical agents capable of damaging DNA and chromosomes of cells.
Among them, the singlet oxygen is considered to be a major causative agent of cellular damage in photodynamic process.
Other studies have implied that vesicular zinc 1) is not the causative agent of neuronal damage [29], [47], [48], 2) that it excerpts a protective effect [49], and 3) that zinc chelation provides a short-term neuroprotection (evaluated histologically), but fails to improve long-term functional outcome [50].
Proteinuria (in particular albuminuria) has been traditionally used as a marker of glomerular leakage, but can also be an independent agent of renal damage [ 13- 15].
Properties include symptom description, causal agent, and degree of damage.
To our knowledge, a study of the present tracers as agents of detecting renal damage after I-R insults has not previously been carried out.
