The purpose of this paper is to measure the fully open access (OA) contents cited by researchers from top three universities in the USA (MIT, CIT and Stanford) in the field of physics. This study aims to identify the core fully OA journals widely used by researchers in the field of physics and evaluate the cited fully OA resources by applying various scientometric parameters to check the credibility of these OA resources.,The PhD theses awarded during 2014 in the field of physics and hosted in the institutional repositories of Massachusetts Institute of Technology (MIT), California Institute of Technology (CIT) and Stanford University, respectively, were selected and scanned to extract references of sources cited. Later on, Google Scholar was used to identify source journals of the extracted references. Only source “journals” were selected and analyzed; rest of other sources were ignored; accordingly, toll-access and OA journals were segregated, as such the OA-cited journals could be identified. The scientometric performance indicators were used to check the quality of identified core fully OA journal cited by USA researchers in the field of physics.,The results of this study show that fully OA resources are sufficiently used by the researchers of top three academic institutions of the world/USA. The study was also successful in identifying the core fully OA journals; besides it also reveals that these fully OA journals are highly impressive as showed by performance indicators applied. The major finding of the research includes the identification of top ten fully OA journals along with their impact based on different scientometric parameters like number of times cited, impact factor, h-index, immediacy index, impact per publication and Scimago Journal Rank (SJR).,Because of a limited corpus of literature scrutinized in this study, the findings of the study may or may not represent the global picture in the field of physics.,The paper confirms that fully OA resources usage trend is positively increasing day by day, and there are vast numbers of core OA journals with high-quality impact available for use to researchers around the world. Besides, the paper also affirms the view that there should be more publicity of fully OA literature around the globe to reap the benefits of the same.,This paper will assist researchers, libraries, information centers and research and development institutions to take a cost-efficient approach in using and disseminating the scholarly literature.,This paper is one of the first pieces of research conducted on electronic theses and dissertation (ETD’s) in top three universities of the USA, to check usage percentage and quality of fully OA journal resources cited by doctoral students in the field of physics.

中文翻译：

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通过引用分析分析美国博士生对开放获取资源的使用情况

本文的目的是测量物理领域中来自美国前三名大学（麻省理工学院，CIT和斯坦福大学）的研究人员引用的完全开放访问（OA）内容。这项研究旨在确定物理学领域研究人员广泛使用的核心完全OA期刊，并通过应用各种科学计量学参数来检查这些OA文献的可信度来评估被引用的完全OA文献资源.2014年在该领域获得博士学位选择并扫描了分别位于麻省理工学院（MIT），加利福尼亚理工学院（CIT）和斯坦福大学的机构知识库中的物理学博士学位，并对其进行了扫描，以提取引用的参考文献。后来，使用了Google学术搜索来识别所提取参考文献的来源期刊。仅选择和分析了源“期刊”；其他来源均被忽略；因此，收费杂志和OA期刊是分开的，因此可以识别OA引用的期刊。科学计量学性能指标用于检查美国研究人员在物理学领域引用的已识别核心完全OA期刊的质量。研究结果表明，美国前三大学术机构的研究人员充分利用了完全OA资源。世界/美国。该研究还成功地确定了核心的完全OA期刊。此外，它还表明，如所应用的绩效指标所示，这些完全开放获取期刊也令人印象深刻。该研究的主要发现包括根据不同的科学计量学参数（例如引用次数，影响因子，h指数，即时指数，每篇出版物的影响力和Scimago期刊排名（SJR））确定十大完全OA期刊及其影响力。 。，由于本研究研究的文献数量有限，因此研究结果可能代表或可能不代表物理学领域的全球情况。该论文证实，完全OA资源的使用趋势正呈逐日上升趋势，并且有大量具有高质量影响力的OA核心期刊可供世界各地的研究人员使用。此外，本文还肯定了这样一种观点，即应该在全球范围内对完全OA文献进行更多的宣传，以从中受益。