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  2. List of academic databases and search engines - Wikipedia

    en.wikipedia.org/wiki/List_of_academic_databases...

    A gateway to results of DOE research and development and major R&D accomplishments of interest to DOE. Not working from 2014 Free DOE: Sparrho: Multidisciplinary: Research articles and patents from 45k+ journals and preprint servers. Uses content recommendation concept. Subscription Distylled Ltd.

  3. Population study - Wikipedia

    en.wikipedia.org/wiki/Population_study

    Population study is an interdisciplinary field of scientific study that uses various statistical methods and models to analyse, determine, address, and predict population challenges and trends from data collected through various data collection methods such as population census, registration method, sampling, and some other systems of data sources. [1]

  4. List of online encyclopedias - Wikipedia

    en.wikipedia.org/wiki/List_of_online_encyclopedias

    Online-only since 2009, covers works and writers of world literature: Subscription The Literary Encyclopedia: English Literature related articles Subscription Oxford Art Online: English Visual art; formerly Grove Art Online and The Dictionary of Art. Originally published in 1996 as a 34-volume printed encyclopedia; offered online since 1998.

  5. Research site - Wikipedia

    en.wikipedia.org/wiki/Research_site

    In clinical research a research site conducts all or part of a clinical trial. For clinical trials which recruit research participants in multiple locations, often the research will have a headquarters then multiple regional research sites to conduct the research in that region. In a network of research sites where all are recruiting study ...

  6. Wikipedia:List of free online resources - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:List_of_free...

    The following list is meant to help you with your own research, by offering links to respectable information sources on the web, available free of charge.Inclusion on the list doesn't automatically mean the absolute truth is on these websites, so always be critical and compare information between different sources.

  7. Statistical population - Wikipedia

    en.wikipedia.org/wiki/Statistical_population

    In statistics, a population is a set of similar items or events which is of interest for some question or experiment. [1] A statistical population can be a group of existing objects (e.g. the set of all stars within the Milky Way galaxy) or a hypothetical and potentially infinite group of objects conceived as a generalization from experience (e.g. the set of all possible hands in a game of ...

  8. Center for Population Economics - Wikipedia

    en.wikipedia.org/wiki/Center_for_Population...

    Considering all the definition that have been given by these authors, optimum population is basically an ideal population size which can achieve the most income per if the available resources are properly utilized. However, if the population increases or decreases below the ideal size, then the maximum returns will diminish . According to this ...

  9. Scholarpedia - Wikipedia

    en.wikipedia.org/wiki/Scholarpedia

    Scholarpedia articles are written by invited or approved expert authors and are subject to peer review. [3] Scholarpedia lists the real names and affiliations of all authors, curators and editors involved in an article: however, the peer review process (which can suggest changes or additions, and has to be satisfied before an article can appear ...