Research into reasons for internet non-use has been mostly based on one-off cohort studies and focused on single-country contexts. This paper shows that motivations for being offline changed between 2005 and 2013 amongst non-and ex-users in two high diffusion European countries. Analyses of Swedish and British data demonstrate that non-user populations have become more concentrated in vulnerabl...

In this paper, we consider the problem of partitioning a small data sample drawn from a mixture of k product distributions. We are interested in the case that individual features are of low average quality γ, and we want to use as few of them as possible to correctly partition the sample. We analyze a spectral technique that is able to approximately optimize the total data size—the product of n...

Many epidemiological studies involve analysis of clusters of diseases to infer locations of environmental hazards that could be responsible for the disease. This approach is however only suitable for sedentary populations or diseases with small latency periods. For migratory populations and diseases with long latency periods, people may change their residential location between time of exposure...

The purpose of this manuscript is to present a reliable estimate in form of tables of the Muslim population and its percentage in each country in the Americas. This data is summarized to be a reference for other studies and discussions related to Muslim population. The data show that Muslim population in the Americas, both in size and in percentage, remains very low. Accordingly, there are less...

Bibliometric and usage-based analyses and tools highlight the value of information about scholarship contained within the network of authors, articles and usage data. Less progress has been made on populating and using the author side of this network than the article side, in part because of the difficulty of unambiguously identifying authors. I briefly review a sample of author identifier sche...

Indirect measures of population abundance, such as harvest data, are often used to make inference on long term population dynamics when direct data are either not available or are logistically difficult to obtain. However, when harvesting records are used, a common concern is that they may not reflect actual population abundance. We investigated the extent to which harvest data reflected change...