পদ্ধতির তুলনা করুন
নির্বাচিত পদ্ধতিগুলো পাশাপাশি পর্যালোচনা করুন; যে সারিগুলোয় পার্থক্য আছে সেগুলো চিহ্নিত করা হয়।
| পাবমেড এবং মেডলাইন× | ওপেন অ্যাক্সেস জার্নালের ডিরেক্টরি× | |
|---|---|---|
| ক্ষেত্র | গ্রন্থমিতি | গ্রন্থমিতি |
| পরিবার | Process / pipeline | Process / pipeline |
| উদ্ভবের বছর≠ | 1966 | 2003 |
| প্রবর্তক≠ | National Library of Medicine (NLM), U.S. National Institutes of Health | DOAJ Community (Swedish library consortium, later expanded to international consortium) |
| ধরন | Database | Database |
| মৌলিক উৎস≠ | National Library of Medicine. (2024). PubMed: Home. Retrieved from https://pubmed.ncbi.nlm.nih.gov/ link ↗ | Directory of Open Access Journals. (2024). About DOAJ. Retrieved from https://doaj.org/ link ↗ |
| অপর নাম≠ | PubMed, MEDLINE, NLM, PubMed Central | DOAJ, Directory of Open Access |
| সম্পর্কিত | 5 | 5 |
| সারসংক্ষেপ≠ | PubMed is a free, publicly accessible literature database maintained by the National Library of Medicine (NLM), a division of the U.S. National Institutes of Health. It provides access to biomedical and life sciences literature from MEDLINE (the curated subset of ~30 million indexed journal articles), life science journals, in-process articles, and preprints. MEDLINE, established in 1966, is the gold standard for biomedical literature indexing, using MeSH (Medical Subject Headings), a hierarchical controlled vocabulary of ~33,000 terms. PubMed is the primary discovery tool for clinicians, researchers, and healthcare professionals worldwide seeking evidence-based information. | The Directory of Open Access Journals (DOAJ) is a community-maintained, freely accessible directory of high-quality, peer-reviewed open-access journals and articles established in 2003. DOAJ indexes over 20,000 open-access journals across all disciplines (sciences, social sciences, humanities, arts) from diverse geographic regions. The directory serves researchers, librarians, and administrators as the authoritative curated list of legitimate open-access journals—differentiating quality open-access publications from predatory journals that lack genuine peer review. DOAJ quality seal, awarded to journals meeting stricter governance and transparency criteria, enables identification of the highest-caliber open-access publications. |
| ScholarGateডেটাসেট ↗ |
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