There are several strategies that can be employed to effectively utilize online research databases and digital libraries for accessing scholarly articles for Political Science and International Relations (PSIR) studies. These strategies include:

1. Familiarize yourself with available databases:
- Begin by familiarizing yourself with the online research databases and digital libraries available for PSIR studies.
- Some popular databases and libraries include JSTOR, ProQuest, Google Scholar, and the Digital Public Library of America.

2. Use advanced search techniques:
- Utilize advanced search techniques offered by these databases to refine your search and obtain more targeted results.
- These techniques may include using Boolean operators (AND, OR, NOT), truncation, phrase searching, and field-specific searching.

3. Utilize subject-specific databases:
- Explore subject-specific databases that are dedicated to PSIR studies.
- These databases often provide a more comprehensive collection of scholarly articles and publications in the field.

4. Utilize citation searching:
- Use citation searching to find relevant articles and publications.
- Start by identifying key articles or authors in your area of interest and then use the citation lists provided in these articles to find related publications.

5. Access articles through institutional subscriptions:
- If you are affiliated with an educational institution, make use of the institutional subscriptions to access full-text articles.
- Many universities and colleges provide access to a wide range of online research databases and digital libraries.

6. Read abstracts and summaries:
- Before accessing the full-text of an article, read the abstracts and summaries to determine its relevance to your research.
- This will help you save time by focusing only on articles that are directly related to your topic.

7. Save and organize your findings:
- Create an organized system to save and organize the articles you find.
- This could be done using citation management tools like Zotero or Mendeley, or by creating folders and bookmarks within your browser.

8. Seek assistance from librarians:
- If you encounter difficulties in finding specific articles or using the databases effectively, seek assistance from librarians.
- Librarians are experienced in navigating research databases and can provide guidance on search strategies and resources.

By employing these strategies, you can effectively utilize online research databases and digital libraries to access scholarly articles for your PSIR studies. Remember to stay organized, be thorough in your search, and critically evaluate the relevance and reliability of the articles you find.