Episodic Stream Acidification Caused by Atmospheric Deposition of Sea Salts at Acadia National Park, Maine, United States

Major episodic acidifications were observed on several occasions in first-order brooks at Acadia National Park, Mount Desert Island, Maine. Short-term declines of up to 2 pH units and 130-mu-eq L-1 acid-neutralizing capacity were caused by HCl from soil solutions, rather than by H2SO4 or HNO3 from precipitation, because (1) SO4 concentrations were constant or decreased during the pH depression, (2) Cl concentrations were greatest at the time of lowest pH, and (3) Na:Cl ratios decreased from values much greater than those in precipitation (a result of chemical weathering), to values equal to or less than those in precipitation. Dilution, increases in NO3 concentrations, or increased export or organic acidity from soils were insufficient to cause the observed decreases in pH. These data represent surface water acidifications due primarily to an ion exchange "salt effect" of Na+ for H+ in soil solution, and secondarily to dilution, neither of which is a consequence of acidic deposition. The requisite conditions for a major episodic salt effect acidification include acidic soils, and either an especially salt-laden wet precipitation event, or a period of accumulation of marine salts from dry deposition, followed by wet inputs.

PRETERM BIRTH AND OCCUPATIONAL PHYSICAL ACTIVITY: A CASE-CONTROL STUDY OF THE RELATIONSHIP BETWEEN LENGTH OF GESTATION AND THE PHYSICAL DEMAND OF U.S. ARMY MILITARY OCCUPATIONAL SPECIALTIES (UNITED STATES)

A case-control study has been conducted examining the relationship between preterm birth and occupational physical activity among U.S. Army enlisted gravidas from 1981 to 1984. The study includes 604 cases (37 or less weeks gestation) and 6,070 controls (greater than 37 weeks gestation) treated at U.S. Army medical treatment facilities worldwide. Occupational physical activity was measured using existing physical demand ratings of military occupational specialties.^ A statistically significant trend of preterm birth with increasing physical demand level was found (p = 0.0056). The relative risk point estimates for the two highest physical demand categories were statistically significant, RR's = 1.69 (p = 0.02) and 1.75 (p = 0.01), respectively. Six of eleven additional variables were also statistically significant predictors of preterm birth: age (less than 20), race (non-white), marital status (single, never married), paygrade (E1 - E3), length of military service (less than 2 years), and aptitude score (less than 100).^ Multivariate analyses using the logistic model resulted in three statistically significant risk factors for preterm birth: occupational physical demand; lower paygrade; and non-white race. Controlling for race and paygrade, the two highest physical demand categories were again statistically significant with relative risk point estimates of 1.56 and 1.70, respectively. The population attributable risk for military occupational physical demand was 26%, adjusted for paygrade and race; 17.5% of the preterm births were attributable to the two highest physical demand categories. ^

Federal regulations : balancing rights, reason, and responsibility : hearing before the Subcommittee on Oversight of Government Management and the District of Columbia of the Committee on Governmental Affairs, United States Senate, One Hundred Fourth Congress, first session, Bangor, Maine--April 13, 1995.

Shipping list no.: 95-0243-P.

Laws and ordinances of the city of Dayton : containing the Constitution of the United States, the Constitution of the state of Ohio, the laws of the state providing for the organization of cities and incorporated villages, all the general ordinances of the city in force June 1862 ... /

Includes index.

Mississippi River and tributaries project. Letter from the Secretary of the Army transmitting a letter from the Chief of Engineers, Department of the Army, dated April 6, 1963, submitting a report, together with accompanying papers and illustrations, on a review of the Mississippi River and tributaries project, in response to a resolution adopted June 12, 1964, by the Committee on Public Works of the United States Senate, and to other resolutions by the committee and by the Committee on Public Works of the House of Representatives, listed in the accompanying report of the Mississippi River Commission, and to the Flood control acts of July 24, 1946 and May 17, 1950.

Stamped at head of cover title: Also issued as 88/2 H. doc. 308.

Roster of the men and women who served in the army or naval service (including the Marine corps) of the United States or its allies from the state of North Dakota in the World war, 1917-1918...

Prepared and published under the direction of Brigadier General C. Angus Fraser, the adjutant general of North Dakota. By authority of Legislative Assembly of North Dakota.

Combat divisions of World War II : (Army of the United States)

Cover title.

The R.O.T.C. manual, infantry : a text book for the Reserve Officers Training Corps.

Vol. 1-2 are 20th ed.

Proceedings of the 1980 Army Science Conference : United States Military Academy, West Point, New York, 17-20 June 1980.

Mode of access: Internet.

100 great battles of the rebellion; a detailed account of regiments and batteries engaged -- casualties, killed, wounded and missing, and the number of men in action in each regiment; also, all the battles of the Revolution, War of 1812-5, Mexican War, Indian battles, American-Spanish War, and naval battles. State rosters from the several northern states, giving the enrollment, number killed, wounded, died and deserted from each organization during the war,

Mode of access: Internet.

Laws of the United States governing the granting of Army and Navy pensions : together with the regulations relating thereto.

Description based on: 1897.

10,000 miles with the 125th Infantry supply train.

Cover-title.

Maine's rural elderly [microform] : independence without isolation : hearing before the Special Committee on Aging, United States Senate, Ninety-sixth Congress, second session, Bangor, Maine, June 9, 1980.

CIS Microfiche Accession Numbers: CIS 81 S141-4

Life and correspondence of Joseph Reed : military secretary of Washington, at Cambridge, adjutant-general of the Continental Army, member of the Congress of the United States, and president of the Executive Council of the State of Pennsylvania /

Includes bibliographical references and index.

Soldiers without swords; a history of the Salvation Army in the United States.

Mode of access: Internet.