Results 1 to 10 of about 149 (147)
Population, Population Density, and Technological Change [PDF]
SSRN Electronic Journal, 2004 In a model on population and endogenous technological change, Kremer (1993) combines a short-run Malthusian scenario where income determines the population that can be sustained, with the Boserupian insight that greater population spurs technological change and can therefore lift a country out of its Malthusian trap.
Stephan Klasen, Thorsten Nestmann
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Mapping of Population Density [PDF]
Demography, 1974 Abstract The Bureau of the Census listing of geographical coordinates of centroids of all enumeration districts together with population counts from the U. S. 1970 Census of Population was used to contruct via computer five nationwide geographical grids of population density with sector dimensions of 0.01, 0.02, 0.04, 0.1, and 0.25 ...
Michael T. Heath, Carsten M. Haaland
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Effect of population density on epidemics [PDF]
Physica A: Statistical Mechanics and its Applications, 2018 16 pages, 7 ...
Ruiqi Li +3 more
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Averaging population density [PDF]
Demography, 1984 Abstract Population density is a commonly quoted statistic. Almost no general descriptive summary of the population of an area is complete without a density listing, table or map. As each such density statistic is an average, it is worth considering what kind of average is being used. This article analyzes this and illustrates the effect
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Population density and the city [PDF]
Demography, 1972 It is possible that in no previous age has so large a proportion of the citizenry been so directly and so vocally concerned about environmental deterioration and its threat to the quality of life. If the fervor and the insistence with which the matter is discussed is a measure of its importance, then it surely is one of the most significant issues of ...
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Population and species neighbor identity impact trait–trait relationships and plant performance
Population Ecology, EarlyView.We evaluated how populations and species identity influence plant performance and trait outcomes in mixtures, and assessed trait variation among populations of two forb species native to the western United States (Dieteria canescens and Heterotheca villosa) following three interaction treatments (single‐population monoculture, two‐population mixture ...
Alicia J. Foxx +2 more
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Population density and suicide in Scotland [PDF]
Rural and Remote Health, 2007 Suicide rates among men have increased in Scotland while falling in neighbouring countries. A national suicide prevention strategy has been produced. Previous work found that some rural areas of Scotland had higher than average rates of male suicide and undetermined deaths.
Cameron Stark +4 more
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Effects of chronic browsing on life‐history traits of an irruptive large herbivore population
Population Ecology, EarlyView.This study aimed to determine the relationship between diet quality, body mass, and size (hind foot length), and female reproduction and sought to identify the mechanism by which high density under severe food limitations is maintained. Our results demonstrated that sika deer introduced to Nakanoshima Island have maintained high densities through high ...
Koichi Kaji +9 more
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Dendritic cells steering antigen and leukocyte traffic in lymph nodes
FEBS Letters, EarlyView.Dendritic cells are key players in the activation of T cells and their commitment to effector function. In this In a Nutshell Review, we will discuss how dendritic cells guide the trafficking of antigen and leukocytes in the lymph node, thus influencing T‐cell activation processes. Dendritic cells (DCs) play a central role in initiating and shaping the
Enrico Dotta +3 more
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