Sam E. Day

2.4k total citations · 2 hit papers
11 papers, 2.0k citations indexed

About

Sam E. Day is a scholar working on Radiology, Nuclear Medicine and Imaging, Spectroscopy and Biophysics. According to data from OpenAlex, Sam E. Day has authored 11 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Radiology, Nuclear Medicine and Imaging, 8 papers in Spectroscopy and 4 papers in Biophysics. Recurrent topics in Sam E. Day's work include Advanced NMR Techniques and Applications (8 papers), Advanced MRI Techniques and Applications (8 papers) and Electron Spin Resonance Studies (4 papers). Sam E. Day is often cited by papers focused on Advanced NMR Techniques and Applications (8 papers), Advanced MRI Techniques and Applications (8 papers) and Electron Spin Resonance Studies (4 papers). Sam E. Day collaborates with scholars based in United Kingdom, United States and Poland. Sam E. Day's co-authors include Kevin M. Brindle, Mikko I. Kettunen, Ferdia A. Gallagher, Mathilde H. Lerche, De‐En Hu, Jan Henrik Ardenkjær‐Larsen, Klaes Golman, Jan Wolber, Magnus Karlsson and René in ‘t Zandt and has published in prestigious journals such as Nature, Nature Medicine and Cancer Research.

In The Last Decade

Sam E. Day

11 papers receiving 2.0k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Detecting tumor response to treatment using hyperpolarized 13C magnetic resonance imaging and spectroscopy

2007 733 citations Sam E. Day, Mikko I. Kettunen et al. Nature Medicine profile →
Magnetic resonance imaging of pH in vivo using hyperpolarized 13C-labelled bicarbonate

2008 704 citations Ferdia A. Gallagher, Mikko I. Kettunen et al. Nature profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Sam E. Day United Kingdom	10	1.3k	1.0k	625	532	421	11	2.0k
René in ‘t Zandt Sweden	18	1.6k 1.2×	1.3k 1.3×	843 1.3×	640 1.2×	552 1.3×	43	2.7k
Pernille Rose Jensen Denmark	24	1.4k 1.1×	758 0.8×	749 1.2×	494 0.9×	377 0.9×	66	2.3k
James Tropp United States	26	1.8k 1.3×	1.6k 1.5×	580 0.9×	580 1.1×	677 1.6×	49	2.7k
Timothy H. Witney United Kingdom	23	671 0.5×	843 0.8×	263 0.4×	280 0.5×	185 0.4×	52	1.8k
Jeremy W. Gordon United States	26	1.5k 1.1×	1.2k 1.2×	430 0.7×	388 0.7×	636 1.5×	102	2.0k
Lloyd Lumata United States	22	837 0.6×	192 0.2×	823 1.3×	431 0.8×	307 0.7×	52	1.9k
Shawn Wagner United States	25	789 0.6×	270 0.3×	549 0.9×	198 0.4×	483 1.1×	59	2.3k
Jan Wolber United Kingdom	22	1.8k 1.4×	1.7k 1.6×	517 0.8×	426 0.8×	1.4k 3.2×	40	2.8k
Mark J. Albers United States	11	1.0k 0.8×	880 0.9×	349 0.6×	391 0.7×	317 0.8×	11	1.5k
Simon Hu United States	22	1.4k 1.1×	1.2k 1.2×	402 0.6×	520 1.0×	546 1.3×	34	1.9k

Countries citing papers authored by Sam E. Day

Since Specialization

Citations

This map shows the geographic impact of Sam E. Day'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 Sam E. Day with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Sam E. Day more than expected).

Fields of papers citing papers by Sam E. Day

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Sam E. Day. 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 Sam E. Day. The network helps show where Sam E. Day may publish in the future.

Co-authorship network of co-authors of Sam E. Day

This figure shows the co-authorship network connecting the top 25 collaborators of Sam E. Day. A scholar is included among the top collaborators of Sam E. Day 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 Sam E. Day. Sam E. Day is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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11 of 11 papers shown

Mira, Mohamed M., et al.. (2023). The Arabidopsis Phytoglobin 2 mediates phytochrome B (phyB) light signaling responses during somatic embryogenesis. Planta. 257(5). 88–88. 4 indexed citations

Gallagher, Ferdia A., Mikko I. Kettunen, Eva Serrão, et al.. (2015). Carbonic Anhydrase Activity Monitored In Vivo by Hyperpolarized 13C-Magnetic Resonance Spectroscopy Demonstrates Its Importance for pH Regulation in Tumors. Cancer Research. 75(19). 4109–4118. 36 indexed citations

Gallagher, Ferdia A., Mikko I. Kettunen, Sam E. Day, et al.. (2011). Detection of tumor glutamate metabolism in vivo using ¹³C magnetic resonance spectroscopy and hyperpolarized [1‐¹³C]glutamate. Magnetic Resonance in Medicine. 66(1). 18–23. 50 indexed citations

Kettunen, Mikko I., De‐En Hu, Timothy H. Witney, et al.. (2010). Magnetization transfer measurements of exchange between hyperpolarized [1-¹³C]pyruvate and [1-¹³C]lactate in a murine lymphoma. Magnetic Resonance in Medicine. 63(4). 872–880. 95 indexed citations

Day, Sam E., Mikko I. Kettunen, Murali Cherukuri, et al.. (2010). Detecting response of rat C6 glioma tumors to radiotherapy using hyperpolarized [1‐¹³C]pyruvate and ¹³C magnetic resonance spectroscopic imaging. Magnetic Resonance in Medicine. 65(2). 557–563. 126 indexed citations

Morse, David L., Danielle Carroll, Sam E. Day, et al.. (2008). Characterization of breast cancers and therapy response by MRS and quantitative gene expression profiling in the choline pathway. NMR in Biomedicine. 22(1). 114–127. 38 indexed citations

Gallagher, Ferdia A., Mikko I. Kettunen, Sam E. Day, et al.. (2008). Magnetic resonance imaging of pH in vivo using hyperpolarized 13C-labelled bicarbonate. Nature. 453(7197). 940–943. 704 indexed citations breakdown →

Gallagher, Ferdia A., Mikko I. Kettunen, Sam E. Day, Mathilde H. Lerche, & Kevin M. Brindle. (2008). ¹³C MR spectroscopy measurements of glutaminase activity in human hepatocellular carcinoma cells using hyperpolarized ¹³C‐labeled glutamine. Magnetic Resonance in Medicine. 60(2). 253–257. 125 indexed citations

Morse, David L., Natarajan Raghunand, Constantin Job, et al.. (2007). Response of choline metabolites to docetaxel therapy is quantified in vivo by localized ³¹P MRS of human breast cancer xenografts and in vitro by high‐resolution ³¹P NMR spectroscopy of cell extracts. Magnetic Resonance in Medicine. 58(2). 270–280. 41 indexed citations

10.

Day, Sam E., Mikko I. Kettunen, Ferdia A. Gallagher, et al.. (2007). Detecting tumor response to treatment using hyperpolarized 13C magnetic resonance imaging and spectroscopy. Nature Medicine. 13(11). 1382–1387. 733 indexed citations breakdown →

11.

Morse, David L., Jean‐Philippe Galons, Claire M. Payne, et al.. (2007). MRI‐measured water mobility increases in response to chemotherapy via multiple cell‐death mechanisms. NMR in Biomedicine. 20(6). 602–614. 56 indexed citations

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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