Proponents of the PIE and BICEPS principles argue that it leads to a reduction of long-term disability but opponents argue that combat stress reactions lead to long-term problems such as post-traumatic stress disorder. The use of psychiatric drugs to treat people with CSR has also attracted criticism, as some military psychiatrists have come to question the efficacy of such drugs on the long-term health of veterans. Concerns have been expressed as to the effect of pharmaceutical treatment on an already elevated substance abuse rate among former people with CSR.Recent research has caused an increasing number of scientists to believe that there may be a physical (i.e., neurocerebral damage) rather than psychological basis for blast trauma. As traumatic brain injury and combat stress reaction have very different causes yet result in similar neurologic symptoms, researchers emphasize the need for greater diagnostic care. See also
Acute stress disorder
Eye movement desensitization and reprocessing (modern treatment)
Lack of Moral Fibre
Shell shock
Social alienation – among returning war veterans

References
Further reading
West, Rebecca (1918). The Return of the Soldier. Garden City, NY: Garden City Pub. Co.
Woolf, Virginia (1925). Mrs Dalloway. Barker, Pat (1991). Regeneration. Dutton. ISBN 978-0525934271. Holden, Wendy (1998). Shell Shock. (Channel 4 Books). Grabenhorst, Georg (1928). Zero Hour. Roth, Joseph (1924). Die Rebellion. A Review on the Disarm Doctumentary
Corns, Cathryn and Hughes-Wilson, John (2001) Blindfold and Alone – British Military Executions in the Great War (Cassell)
Lamprecht, Friedhelm and Sack, Martin, "Posttraumatic Stress Disorder Revisited"
Dispatches: Lessons learned for Soldiers; Stress Injury and Operational Deployments, The Army Lessons Learned Centre, Canadian Forces Base Kingston, Vol.
The Mg2+ cation being the second most abundant cation in seawater and in rocksalt, the potential release of magnesium ions dissolving in brines intruding the deep geological repository is also expected to minimize the geochemical perturbations. MgO has an important place as a commercial plant fertilizer  and as animal feed. An aerosolized solution of MgO is used in library science and collections management for the deacidification of at-risk paper items. In this process, the alkalinity of MgO (and similar compounds) neutralizes the relatively high acidity characteristic of low-quality paper, thus slowing the rate of deterioration. MgO is also used as a protective coating in plasma displays. Magnesium oxide is used as an oxide barrier in spin-tunneling devices. Owing to the crystalline structure of its thin films, which can be deposited by magnetron sputtering, for example, it shows characteristics superior to those of the commonly used amorphous Al2O3. In particular, spin polarization of about 85% has been achieved with MgO versus 40–60 % with aluminium oxide. The value of tunnel magnetoresistance is also significantly higher for MgO (600% at room temperature and 1,100 % at 4.2 K) than Al2O3 (ca. 70% at room temperature). Precautions
Inhalation of magnesium oxide fumes can cause metal fume fever. See also
Calcium oxide
Barium oxide
Magnesium sulfide
Reactive magnesia

Notes
References
External links
Data page at UCL
Ceramic data page at NIST
NIOSH Pocket Guide to Chemical Hazards at CDC