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Density-dependent Survival of Hemlock Woolly Adelgid Life Stages
stabilization of populations survival
2015/1/22
To investigate the density-dependent factors that may be partly responsible for the apparent stability of hemlock woolly adelgid (HWA; Adelges tsugae Annand) populations in central New England, we inf...
Union Membership and Density: Some (Not So) Stylized Facts and Challenges
trade unions union membership union density unionization
2012/10/22
Surveying some recent data and the empirical literature from various disciplines, this paper attempts to shed some light on what we know and don't know about (trends in) unionization and its determina...
Mapping Three-Dimensional Density Patterns for Analyzing Artefact (Re)distribution Trends in Palaeolithic Sites
Intra-Site Spatial Analyses 3D Density Patterns Site Formation Processes Geographical Information System Middle Pleistocene Isernia La Pineta
2013/1/30
The artefact density in an archaeological deposit provides a direct record of the concentrating and dispersing effects of various formation processes. 2D density analyses have frequently been processe...
Since the mid-1980s, Mexico has witnessed a significant decline in unionization; changing industry, occupation, and demographic worker characteristics account for only about one-fourth of the decline,...
Originally prepared to provide background information and analysis for a Canadian Labour Congress conference on rebuilding unions in the Fall of 2003, this article maps trends in union density i.e., t...