Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
2002 1
2020 1
2024 0

Text availability

Article attribute

Article type

Publication date

Search Results

2 results

Results by year

Filters applied: . Clear all
Page 1
Four direct measurements of the fine-structure constant 13 billion years ago.
Wilczynska MR, Webb JK, Bainbridge M, Barrow JD, Bosman SEI, Carswell RF, Dąbrowski MP, Dumont V, Lee CC, Leite AC, Leszczyńska K, Liske J, Marosek K, Martins CJAP, Milaković D, Molaro P, Pasquini L. Wilczynska MR, et al. Among authors: martins cjap. Sci Adv. 2020 Apr 24;6(17):eaay9672. doi: 10.1126/sciadv.aay9672. Print 2020 Apr. Sci Adv. 2020. PMID: 32917582 Free PMC article.
Cosmology with varying constants.
Martins CJ. Martins CJ. Philos Trans A Math Phys Eng Sci. 2002 Dec 15;360(1801):2681-95. doi: 10.1098/rsta.2002.1087. Philos Trans A Math Phys Eng Sci. 2002. PMID: 12626260