Researchers need to collect enough primary research to have a clear idea of the views and opinions of the people who are relevant to their research. The people relevant to the research are often ...

Water Environment Research, Vol. 64, No. 7 (Nov. - Dec., 1992), pp. 866-876 (11 pages) Stream sampling for water quality data has commonly employed simple surface-grab procedures as opposed to more ...

primary - information that is collected first-hand, eg tallies, measurements and photographs secondary - information that someone else has previously collected and made available, eg on the internet ...

This is a preview. Log in through your library . Abstract Changes in forest resources have been estimated in a variety of ways. This paper focuses on extensive forest surveys rather than on ...

By Courtney Kennedy, Andrew Mercer, Scott Keeter, Nick Hatley, Kyley McGeeney and Alejandra Gimenez As the costs and nonresponse rates of traditional, probability-based surveys seem to grow each year, ...

A research team has developed a novel direct sampling method based on deep generative models. Their method enables efficient sampling of the Boltzmann distribution across a continuous temperature ...