Although many authors believe that their work has a greater research impact if it is freely available, studies to demonstrate that impact are few. This study looks at articles in four disciplines at varying stages of adoption of open access—philosophy, political science, electrical and electronic engineering and mathematics—to see whether they have a greater impact as measured by citations in the ISI Web of Science database when their authors make them freely available on the Internet. The finding is that, across all four disciplines, freely available articles do have a greater research impact. Shedding light on this category of open access reveals that scholars in diverse disciplines are adopting open-access practices and being rewarded for it.
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机译：尽管许多作者认为，如果免费获得他们的工作，将会对研究产生更大的影响，但研究表明这种影响的研究很少。这项研究研究了采用开放获取的不同阶段（哲学，政治学，电气与电子工程和数学）的四个学科的文章，以查看它们是否具有更大的影响，如通过ISI Web of Science数据库中的引用所衡量的那样作者可以在Internet上免费使用它们。发现是，在所有四个学科中，免费提供的文章的确对研究产生了更大的影响。对此开放获取类别的揭示表明，不同学科的学者正在采用开放获取实践并为此受到了奖励。
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