Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16785
National water summary 1986: Hydrologic events and ground-water quality
Ground water is one of the most important natural resources of the United States and degradation of its quality could have a major effect on the welfare of the Nation. Currently (1985), ground water is the source of drinking water for 53 percent of the Nation's population and for more than 97 percent of its rural population. It is the source of about 40 percent of the Nation's public water supply,
By
Water Resources Mission Area, Pennsylvania Water Science Center, Oklahoma-Texas Water Science Center, Kansas Water Science Center, Utah Water Science Center, Dakota Water Science Center, Central Midwest Water Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center
Response of urinary hydroxyproline to dietary protein and fasting in white-tailed deer
The effects of dietary protein, fasting, and refeeding on urinary hydroxyproline of nine captive female white-tailed deer (Odocoileus virginianus) were examined from 23 February to 3 May 1984 in northern Minnesota. In the fasted group, mean hydroxyproline: creatinine (OHP:C) was greater (P< 0.05) at week 4 compared to baseline at week 0. Between fasted deer and deer fed high protein-high energy (H
Authors
G. D. DelGiudice, U. S. Seal, L. D. Mech
Brain cholinesterase activity of apparently normal wild birds
Organophosphorus and carbamate pesticides are potent anticholinesterase substances that have killed large numbers of wild birds of various species. Cause of death is diagnosed by demonstration of depressed brain cholinesterase (ChE) activity in combination with chemical detection of anticholinesterase residue in the affected specimen. ChE depression is determined by comparison of the affected spec
Authors
E. F. Hill
Detection of parvoviruses in wolf feces by electron microscopy
One hundred fifteen wolf (Canis lupus) feces were collected between 1980 and 1984 from northeastern Minnesota and were examined for canine parvovirus by negative contrast electron microscopy. Of these, seven (6%) samples revealed the presence of parvovirus. Some of these viruses were able to grow in cell cultures forming intranuclear inclusion bodies and giant cells.
Authors
M.A. Muneer, I.O. Farah, K.A. Pomeroy, S.M. Goyal, L. D. Mech
Effects of the antimicrobic tiamulin on seven gram-negative bacterial fish pathogens
In vitro and in vivo tests were carried out with tiamulin and gram-negative bacterial pathogens of fish. Determination of minimum inhibitory concentration for 51 strains of seven species of gram-negative bacterial pathogens showed that only strains of Vibrio anguillarum were sensitive at 1.6–6.25 ppm, while the rest of test strains required 25– >100 ppm. Control of infection was not achieved when
Authors
G. L. Bullock, R. L. Herman
Selection for virulence in the fish pathogen Aeromonas salmonicida, using coomassie brilliant blue agar
Coomassie Brilliant Blue Agar was used to quantify the frequency of the A-layer phenotype in different isolates of Aeromonas salmonicida. Hydrophilic, non-clumping isolates of A. salmonicida consisted predominantly of the A-layer minus phenotype. These bacteria were avirulent by intraperitoneal injection into susceptible brook trout (Salvelinus fontinalis) and could not be reisolated from infected
Authors
R.C. Cipriano, J.M. Bertolini
[Book review] North American species of Cuterebra, the rabbit and rodent bot flies (Diptera: Cuterebridae) by C. W. Sabrosky
No abstract available.
Authors
A.L. Gardner
Geohydrology of the Furnace Creek basin and vicinity, Berks, Lancaster, and Lebanon counties, Pennsylvania
The Furnace Creek basin is an area of 8.95 square miles, about three- fourths of which is underlain by metamorphic rocks of low permeability. Reported yields for 14 wells in these rocks range from 1 to 60 gal/min (gallons per minute), with a median of 7.5 gal/min.
The northern part of the study area consists of highly permeable carbonate rocks. Nondomestic wells in these rocks typically y
Authors
L.D. Cecil
Postfledging survival of European starlings exposed as nestlings to an organophosphorus insecticide
To test the hypothesis that exposure to organophosphorus (OP) insecticides reduces postfledging survival of altricial birds, 16—d—old European Starlings (Sturnus vulgaris) were weighed and orally dosed with corn oil containing 6.0 mg of dicrotophos per kilogram of body mass or an equivalent exposure of pure corn oil (controls). Two days later, each survivor was weighed again and patagially tagged
Authors
K. L. Stromborg, C. E. Grue, J. D. Nichols, G. R. Hepp, J. E. Hines, H. C. Bourne
Options for radioactive and other hazardous waste siting within the U. S. Exclusive Economic Zone
Some areas of the E.E.Z. (Exclusive Economic Zone) offer technical, political and economic options that may complement existing approaches to hazardous waste storage and disposal.
Authors
Frank T. Manheim, Allyn Vine
Alleghanian deformation, metamorphism, and granite emplacement in the central Piedmont of the southern Appalachians
Evidence of late Paleozoic (Alleghanian) penetrative deformation, amphilbolite-facies, metamorphism, and syntectonic granite emplacement has been found in an area of the central Piedmont in the southern Appalachians. The High Shoals Granite batholith in the Kings Mountain belt of south-central North Carolina consists of coarse-grained, megacrystic biotite granite with a strong, nearly vertical, gn
Authors
J. Wright Horton,, J. F. Sutter, T. W. Stern, D. J. Milton