Geostatistical assessment of the impact of World War I on the spatial occurrence of soil heavy metals.
(9/19)
Previous research showed a regional Cu enrichment of 6 mg kg(-1) in the top soil of the Ypres war zone (Belgium), caused by corrosion of WWI shell fragments. Further research was required since in addition to Cu, also As, Pb, and Zn were used during the manufacturing of ammunition. Therefore, an additional data collection was conducted in which the initial Cu data set was tripled to 731 data points and extended to eight heavy metals (As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn) which permitted (1) to evaluate the environmental impact of the heavy metals at a regional scale and (2) to assess their regional spatial occurrence by performing an optimized geostatistical modeling. The results showed no pollution at a regional scale, but sometimes locally concentrations exceeded the soil sanitation threshold, especially for Cu, Pb, and Zn. The spatial patterns of Ni and Cr were related to variations in soil texture whereas the occurrences of Cu and Pb were clearly linked to WWI activities. This difference in spatial behavior was confirmed by an analysis of coregionalization. (+info)
The neurological manifestations of trauma: lessons from World War I.
(10/19)
Thanks, but no thanks: how denial of osteopathic service in World War I and World War II shaped the profession.
(11/19)
Osteopathic physicians were denied the same rights and privileges that were granted to allopathic physicians by the US government regarding voluntary and compulsory service in World War I and World War II. Even after changes to the examination process allowed osteopathic physicians to take the examinations required to obtain commission as a physician in the army, osteopathic physicians' service was still rejected. The US government's decision to ban DOs from serving in the war was a blessing in disguise that led to tremendous changes in osteopathic medicine, education, and public acceptance of osteopathic physicians. Using primary documents from military officials, congressional hearings, and archived publications of the American Osteopathic Association, the author recounts the battle osteopathic physicians fought to serve their country during war and the challenges they faced while obtaining both legal and social equality in the eyes of the government and the public. (+info)
Mirrors and smoke: A. V. Hill, his Brigands, and the science of anti-aircraft gunnery in World War I.
(12/19)
In 1916 Captain A. V. Hill was transferred from the infantry to the Ministry of Munitions to work on anti-aircraft gunnery. He determined the three-dimensional coordinates of flying objects by placing two mirrors far apart. The mirrors were viewed from a fixed distance above them and observers simultaneously marked the position of the object. He gathered brilliant men, most too old or too young for conscription, who became known as Hill's Brigands. They determined the coordinates of the explosions of shots fired with different fuse settings and fitted them with the ballistic equations to construct accurate gunnery tables. They solved the puzzle of erratic fuse timing at high altitudes. They developed apparatus to locate aircraft by sound. Travelling groups of Brigands worked with anti-aircraft gunners, which Hill regarded as the dawn of operations research. Hill was as adept at leading scientists as he was at doing science. (+info)
Blood and war.
(13/19)
In 1894 Ulsterman and pathologist Almroth Wright described the citation of blood. Twenty-one years later it was introduced into wartime and clinical practice. Harvard Medical School had a large part in providing Colonel Andrew Fullerton, later Professor of Surgery, Queen's Belfast, with the intellectual and practical help for the Allies to deploy blood on the post-Somme Western Front and in Salonika. The key investigators and clinicians were Americans and Canadians who with Fullerton and Wright instructed the Allies. The key enablers were two Harvard-trained surgeons surnamed Robertson-Oswald H. ("Robby") and L. Bruce (no relation). Physician Roger I. Lee of Harvard, surgeon George W Crile of Cleveland, Peyton Rous of the Rockefeller Institute and Richard Lewisohn of Mount Sinai Hospital, both located in the Upper East Side of New York City, played key roles.By Armistice in 1918, indirect citrated nutrient-enhanced blood transfusion was widely used by the Allies. Geoffrey Keynes was taught the techniques of blood transfusion by Dr. Benjamin Harrison Alton of Harvard at a Casualty Clearing Station near Albert at the time of the Battle of Passchendaele. Professor "Robby" Robertson, DSO, Sir Geoffrey Keynes and Sir Thomas Houston established blood banking. (+info)
German battle casualties: the treatment of functional somatic disorders during World War I.
(14/19)