Karen Hammes

1.6k total citations
8 papers, 550 citations indexed

About

Karen Hammes is a scholar working on Ecology, Global and Planetary Change and Surgery. According to data from OpenAlex, Karen Hammes has authored 8 papers receiving a total of 550 indexed citations (citations by other indexed papers that have themselves been cited), including 3 papers in Ecology, 3 papers in Global and Planetary Change and 2 papers in Surgery. Recurrent topics in Karen Hammes's work include Isotope Analysis in Ecology (3 papers), Pancreatic and Hepatic Oncology Research (2 papers) and Radioactive contamination and transfer (2 papers). Karen Hammes is often cited by papers focused on Isotope Analysis in Ecology (3 papers), Pancreatic and Hepatic Oncology Research (2 papers) and Radioactive contamination and transfer (2 papers). Karen Hammes collaborates with scholars based in Switzerland, Australia and United States. Karen Hammes's co-authors include Michael W. Schmidt, J. O. Skjemstad, Ronald J. Smernik, Margaret Torn, A. Herzog, Ulrich Vogt, Peter H Kook, José Novo Matos, Marco Baron Toaldo and Toni M Glaus and has published in prestigious journals such as Organic Geochemistry, Biogeosciences and Applied Geochemistry.

In The Last Decade

Karen Hammes

8 papers receiving 524 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Karen Hammes Switzerland	6	209	124	112	86	84	8	550
André Hilscher Germany	7	386 1.8×	102 0.8×	223 2.0×	97 1.1×	83 1.0×	12	705
Christian Katzlberger Austria	11	169 0.8×	57 0.5×	142 1.3×	80 0.9×	25 0.3×	22	653
Hongguang Cheng China	20	221 1.1×	67 0.5×	72 0.6×	228 2.7×	71 0.8×	50	833
Jianzhong Cheng China	14	295 1.4×	44 0.4×	68 0.6×	149 1.7×	59 0.7×	38	648
Lacey A. Pyle United States	5	71 0.3×	83 0.7×	99 0.9×	44 0.5×	57 0.7×	6	346
Eugene Balashov Russia	13	466 2.2×	48 0.4×	84 0.8×	71 0.8×	43 0.5×	36	709
Stephen C. Wade United Kingdom	7	251 1.2×	53 0.4×	30 0.3×	130 1.5×	53 0.6×	10	608
Maximilian P.W. Schneider Switzerland	10	229 1.1×	208 1.7×	248 2.2×	125 1.5×	220 2.6×	11	941
Jesús Santiago Notario del Pino Spain	15	197 0.9×	44 0.4×	95 0.8×	151 1.8×	89 1.1×	45	650
M. E. Gallagher United States	9	301 1.4×	59 0.5×	123 1.1×	57 0.7×	19 0.2×	12	660

Countries citing papers authored by Karen Hammes

Since Specialization

Citations

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

Fields of papers citing papers by Karen Hammes

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Karen Hammes. 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 Karen Hammes. The network helps show where Karen Hammes may publish in the future.

Co-authorship network of co-authors of Karen Hammes

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

All Works

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8 of 8 papers shown

Hammes, Karen & Peter H Kook. (2022). Effects of medical history and clinical factors on serum lipase activity and ultrasonographic evidence of pancreatitis: Analysis of 234 dogs. Journal of Veterinary Internal Medicine. 36(3). 935–946. 8 indexed citations

Kook, Peter H & Karen Hammes. (2020). Evaluation of anamnestic and clinicopathologic factors that might explain the poor correlation between pancreatic lipase concentrations (DGGR-Lipase and Spec cPL) and ultrasonographic evidence of pancreatitis in dogs. Zurich Open Repository and Archive (University of Zurich). 2 indexed citations

Hammes, Karen, José Novo Matos, Marco Baron Toaldo, & Toni M Glaus. (2016). Hypovolemia induced systolic anterior motion of the mitral valve in two dogs. Journal of Veterinary Cardiology. 18(4). 367–371. 4 indexed citations

Hammes, Karen & Michael W. Schmidt. (2012). Changes of Biochar in Soil. 201–214. 47 indexed citations

Hammes, Karen, et al.. (2008). Centennial black carbon turnover observed in a Russian steppe soil. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 18 indexed citations

Hammes, Karen, et al.. (2008). Centennial black carbon turnover observed in a Russian steppe soil. Biogeosciences. 5(5). 1339–1350. 161 indexed citations

Hammes, Karen, Ronald J. Smernik, J. O. Skjemstad, & Michael W. Schmidt. (2008). Characterisation and evaluation of reference materials for black carbon analysis using elemental composition, colour, BET surface area and 13C NMR spectroscopy. Applied Geochemistry. 23(8). 2113–2122. 129 indexed citations

Hammes, Karen, Ronald J. Smernik, J. O. Skjemstad, et al.. (2006). Synthesis and characterisation of laboratory-charred grass straw (Oryza sativa) and chestnut wood (Castanea sativa) as reference materials for black carbon quantification. Organic Geochemistry. 37(11). 1629–1633. 181 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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