D. A. Usher

1.5k total citations
32 papers, 1.1k citations indexed

About

D. A. Usher is a scholar working on Molecular Biology, Astronomy and Astrophysics and Organic Chemistry. According to data from OpenAlex, D. A. Usher has authored 32 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Molecular Biology, 8 papers in Astronomy and Astrophysics and 7 papers in Organic Chemistry. Recurrent topics in D. A. Usher's work include DNA and Nucleic Acid Chemistry (12 papers), RNA and protein synthesis mechanisms (10 papers) and Chemical Synthesis and Analysis (6 papers). D. A. Usher is often cited by papers focused on DNA and Nucleic Acid Chemistry (12 papers), RNA and protein synthesis mechanisms (10 papers) and Chemical Synthesis and Analysis (6 papers). D. A. Usher collaborates with scholars based in United States and Germany. D. A. Usher's co-authors include D. M. Brown, F. Eckstein, Albert T. Profy, David Oakenfull, Edward A. Dennis, F. H. Westheimer, David Shalloway, J. I. Lunine, Martin Rahm and Wael A. Fouad and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

D. A. Usher

32 papers receiving 999 citations

Peers

Countries citing papers authored by D. A. Usher

Since Specialization

Citations

This map shows the geographic impact of D. A. Usher's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by D. A. Usher with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites D. A. Usher more than expected).

Fields of papers citing papers by D. A. Usher

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by D. A. Usher. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by D. A. Usher. The network helps show where D. A. Usher may publish in the future.

Co-authorship network of co-authors of D. A. Usher

This figure shows the co-authorship network connecting the top 25 collaborators of D. A. Usher. A scholar is included among the top collaborators of D. A. Usher based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with D. A. Usher. D. A. Usher is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Solvation of nitrogen compounds in Titan’s seas, precipitates, and atmosphere 2015 ·Icarus ·James Stevenson, Wael A. Fouad, David Shalloway, D. A. Usher, J. I. Lunine, Walter G. Chapman, Paulette Clancy	19
2	Metal ions and the stereochemistry of ribozyme reactions 2002 ·Bioorganic Chemistry ·Ralf Stowasser, D. A. Usher	3
3	A new 2′-hydroxyl protecting group for the automated synthesis of oligoribonucleotides 1995 ·Nucleic Acids Research ·(unknown), D. A. Usher	13
4	The evolution of nucleotides 1986 ·Advances in Space Research ·D. A. Usher, Michael C. Needels	1
5	Exobiology in earth orbit 1986 ·Origins of Life and Evolution of Biospheres ·Jill Tarter, Douglas J. DeFrees, D. E. Brownlee, D. A. Usher, Harold P. Klein, William M. Irvine	1
6	Stereoselective aminoacylation of polyribonucleotides 1984 ·Journal of the American Chemical Society ·Albert T. Profy, D. A. Usher	19
7	Nucleic acids, proteins, and chirality 1984 ·Origins of Life and Evolution of Biospheres ·D. A. Usher, Albert T. Profy, (unknown), Michael C. Needels, (unknown), Kin-Ming Lo	9
8	Synthesis of 2'(3')-O-DL-alanyl hexainosinic acid using T4 RNA ligase: suppression of the enzymic reverse transfer reaction by alkaline phosphatase 1983 ·Nucleic Acids Research ·Albert T. Profy, Kin-Ming Lo, D. A. Usher	2
9	Reverse-phase HPLC of DNA restriction fragments and ribooligonucleotides on uncoated Kel-F powder 1979 ·Nucleic Acids Research ·D. A. Usher	34
10	Geometry of the dry-state oligomerization of 2′,3′-cyclic phosphates 1979 ·Journal of Molecular Evolution ·D. A. Usher, (unknown)	13
11	Early Chemical Evolution of Nucleic Acids: A Theoretical Model 1977 ·Science ·D. A. Usher	60
12	Nonenzymic Joining of Oligoadenylates on a Polyuridylic Acid Template 1976 ·Science ·D. A. Usher, (unknown)	67
13	Hydrolytic stability of helical RNA: a selective advantage for the natural 3',5'-bond. 1976 ·Proceedings of the National Academy of Sciences ·D. A. Usher, (unknown)	161
14	Inexpensive septumless injector for high pressure liquid chromatography 1975 ·Analytical Chemistry ·D. A. Usher, (unknown), (unknown)	3
15	RNA Double Helix and the Evolution of the 3′,5′ Linkage 1972 ·Nature New Biology ·D. A. Usher	48
16	Absolute Stereochemistry of the Second Step of Ribonuclease Action 1970 ·Nature ·D. A. Usher, (unknown), F. Eckstein	101
17	Mechanism involving pseudo-rotation for the hydrolysis of dimethylphosphoacetoin 1967 ·Journal of the American Chemical Society ·(unknown), D. A. Usher	18
18	Models of ribonuclease action. I. General species catalysis in the hydrolysis of a nucleotide diester analog 1967 ·Journal of the American Chemical Society ·David Oakenfull, (unknown), D. A. Usher	16
19	1206. Hydrolysis of hydroxyalkyl phosphate esters: the epoxide route 1965 ·Journal of the Chemical Society (Resumed) ·D. M. Brown, D. A. Usher	16
20	Estimation of phosphorus on paper chromatograms 1963 ·Journal of Chromatography A ·D. A. Usher	13

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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