Search results for " Sinking"
showing 4 items of 4 documents
Larger cell or colony size in winter, smaller in summer – a pattern shared by many species of Lake Kinneret phytoplankton
2017
We examined an 8.5-year record (2004-2012) of cell size data for phytoplankton species from Lake Kinneret, Israel, sampled weekly or at 2-week intervals and determined microscopically by the same person. Many of the species abundant enough to be counted year-round showed a typical seasonal cell size pattern that repeated annually: cell diameter was maximal in winter and minimal in summer. This pattern was shared by species from different taxonomic groups including cyanobacteria, chlorophyta, and dinoflagellates. Similarly, in colonial species of diatoms, chlorophyta, and cyanobacteria the number of cells per colony was larger in winter and smaller in summer. We postulated that the seasonal …
Fight on plankton! Or, phytoplankton shape and size as adaptive tools to get ahead in the struggle for life
2011
A renewed interest in investigating the relationships existing between body size and environmental variables is pervading ecological studies. Phytoplankton has a long tradition as model system in studies of community ecology and several research concepts were developed using these organisms. In this paper we try to review the relevance of analyzing the morphological features of phytoplankton in ecology. Starting with a brief account of allometric relationships existing in phytoplankton, we i) examine the physical context in which phytoplankton grow, and ii) highlight the role of their size in nutrient uptake, and that of their shape in light harvesting. Moreover, the way in which the morpho…
How to pay for the war in times of imperfect commitment. Adam Smith and David Ricardo on the Sinking Fund
2014
AbstractThe paper proposes a comparative analysis of Smith's and Ricardo's views on the sinking fund. It shows that Smith and Ricardo agreed in stressing the ineffectiveness of the sinking fund as a policy instrument targeted at public debt repayment and tax-burden relief, pointing out that its actual workings had paradoxically helped to increase rather than reduce British total debt-load. Moreover, their explanation of the sinking fund paradox integrates a defective fiscal commitment technology with powerful politicians’ incentives to siphon off the money stored in the sinking fund to meet sudden increases of public expenditure whenever the occasion arose.
Funding System
2015
The entry discusses the 1820 article, Funding System, David Ricardo wrote for the Supplement to the sixth edition of the Encyclopedia Britannica. It also investigates Ricardo's views on public debt and capital levy