Colin D. Campbell

Arctic microorganisms respond more to elevated UV-B radiation than CO2 (2002)

Gwynn-Jones, Dylan, Johnson, David, Campbell, Colin D, Lee, John A, Callaghan, Terry V

Surface ultraviolet-B radiation and atmospheric CO2 concentrations have increased as a result of ozone depletion and burning of fossil fuels1, 2. The effects are likely to be most apparent in polar...

Effect of metal-rich sludge amendments on the soil microbial community (1998)

Bååth, Erland, Díaz-Raviña, Montserrat, Frostegård, Åsa, Campbell, Colin D.

The effects of heavy-metal-containing sewage sludge on the soil microbial community were studied in two agricultural soils of different textures, which had been contaminated separately with three...

CONFLICTING VIEWS ON THE EFFECT OF OLD-AGE AND SURVIVORS INSURANCE ON RETIREMENT (1976)

CAMPBELL, COLIN D., CAMPBELL, ROSEMARY G.

The literature explaining the sharp drop in labor force participation of the elderly in recent decades is examined. Several recent studies made by economists outside the Social Security...

Seigniorage and Boliva's Runaway Inflation, 1982-1985

Colin D. Campbell

The runaway inflation in Bolivia from 1982 to 1985 was different from that in most other countries by not being related to war. In this study, seigniorage is viewed as a residual source of government...

Effect of Metal-Rich Sludge Amendments on the Soil Microbial Community

Bååth, Erland, Díaz-Raviña, Montserrat, Frostegård, Åsa, Campbell, Colin D.

The effects of heavy-metal-containing sewage sludge on the soil microbial community were studied in two agricultural soils of different textures, which had been contaminated separately with three...

A Rapid Microtiter Plate Method To Measure Carbon Dioxide Evolved from Carbon Substrate Amendments so as To Determine the Physiological Profiles of Soil Microbial Communities by Using Whole Soil

Campbell, Colin D., Chapman, Stephen J., Cameron, Clare M., Davidson, Mitchell S., Potts, Jacqueline M.

Sole-carbon-source tests (Biolog), designed to identify bacteria, have become very popular for metabolically fingerprinting soil microbial communities, despite disadvantages associated with the use...

Effect of Metal-Rich Sludge Amendments on the Soil Microbial Community

Bååth, Erland, Díaz-Raviña, Montserrat, Frostegård, Åsa, Campbell, Colin D.

The effects of heavy-metal-containing sewage sludge on the soil microbial community were studied in two agricultural soils of different textures, which had been contaminated separately with three...

A Rapid Microtiter Plate Method To Measure Carbon Dioxide Evolved from Carbon Substrate Amendments so as To Determine the Physiological Profiles of Soil Microbial Communities by Using Whole Soil

Campbell, Colin D., Chapman, Stephen J., Cameron, Clare M., Davidson, Mitchell S., Potts, Jacqueline M.

Sole-carbon-source tests (Biolog), designed to identify bacteria, have become very popular for metabolically fingerprinting soil microbial communities, despite disadvantages associated with the use...

Use of Multiplex Terminal Restriction Fragment Length Polymorphism for Rapid and Simultaneous Analysis of Different Components of the Soil Microbial Community▿

Singh, Brajesh K., Nazaries, Loic, Munro, Stacey, Anderson, Ian C., Campbell, Colin D.

A multiplex terminal restriction fragment length polymorphism (M-TRFLP) fingerprinting method was developed and validated for simultaneous analysis of the diversity and community structure of two or...

Seigniorage and Boliva's Runaway Inflation, 1982-1985

Colin D. Campbell

The runaway inflation in Bolivia from 1982 to 1985 was different from that in most other countries by not being related to war. In this study, seigniorage is viewed as a residual source of government...

New Hampshire's Tax-Base Limits: An Example of the Leviathan Model.

Campbell, Colin D

This study views the lack of an income tax on wages and salaries and a general sales tax in New Hampshire as tax-base limits. I use the Leviathan model to analyze the differences between the fiscal...