John A. Samis

646 total citations
25 papers, 512 citations indexed

About

John A. Samis is a scholar working on Hematology, Molecular Biology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, John A. Samis has authored 25 papers receiving a total of 512 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Hematology, 5 papers in Molecular Biology and 4 papers in Pulmonary and Respiratory Medicine. Recurrent topics in John A. Samis's work include Blood Coagulation and Thrombosis Mechanisms (14 papers), Hemophilia Treatment and Research (10 papers) and Blood properties and coagulation (4 papers). John A. Samis is often cited by papers focused on Blood Coagulation and Thrombosis Mechanisms (14 papers), Hemophilia Treatment and Research (10 papers) and Blood properties and coagulation (4 papers). John A. Samis collaborates with scholars based in Canada, United Kingdom and Netherlands. John A. Samis's co-authors include John S. Elce, Michael E. Nesheim, Alan R. Giles, C.I. Deluca, John B. Walker, Peter L. Davies, Robert V. Law, Cheng‐Hock Toh, Ayush Kumar and Sarah H. Warren and has published in prestigious journals such as Journal of Biological Chemistry, Blood and Biochemical Journal.

In The Last Decade

John A. Samis

25 papers receiving 495 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
John A. Samis Canada 12 216 150 109 78 71 25 512
Alessio Branchini Italy 17 223 1.0× 345 2.3× 29 0.3× 67 0.9× 32 0.5× 45 700
Jung‐Sook Ha South Korea 12 80 0.4× 207 1.4× 19 0.2× 39 0.5× 36 0.5× 45 433
Kyle Bauckman United States 11 64 0.3× 165 1.1× 22 0.2× 76 1.0× 158 2.2× 17 433
Andreas Petzer Austria 10 60 0.3× 102 0.7× 97 0.9× 52 0.7× 306 4.3× 11 585
Liyuan Yang China 16 70 0.3× 304 2.0× 20 0.2× 43 0.6× 92 1.3× 30 559
Yumiko Uchida Japan 14 52 0.2× 204 1.4× 17 0.2× 54 0.7× 31 0.4× 33 473
S Yasuoka Japan 9 72 0.3× 69 0.5× 9 0.1× 68 0.9× 84 1.2× 24 371
Susanne Witt Germany 10 145 0.7× 91 0.6× 10 0.1× 59 0.8× 23 0.3× 17 362
Jessica B. von Pein Australia 10 68 0.3× 790 5.3× 19 0.2× 70 0.9× 75 1.1× 10 996

Countries citing papers authored by John A. Samis

Since Specialization
Citations

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

Fields of papers citing papers by John A. Samis

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John A. Samis. 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 John A. Samis. The network helps show where John A. Samis may publish in the future.

Co-authorship network of co-authors of John A. Samis

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

All Works

20 of 20 papers shown
1.
Percival, Jennifer, et al.. (2015). Exploring Student and Advisor Experiences in a College-University Pathway Program: A Study of the Bachelor of Commerce Pathway. Canadian Journal of Higher Education. 45(4). 400–422. 4 indexed citations
2.
3.
Percival, Jennifer, et al.. (2015). Exploring factors facilitating and hindering college-university Pathway Program completion. International Journal of Educational Management. 30(1). 20–42. 9 indexed citations
4.
Law, Robert V., et al.. (2014). CpaA a novel protease fromAcinetobacter baumanniiclinical isolates deregulates blood coagulation. FEMS Microbiology Letters. 356(1). 53–61. 43 indexed citations
5.
Samis, John A., et al.. (2012). Measurement of Factor V Activity in Human Plasma Using a Microplate Coagulation Assay. Journal of Visualized Experiments. 7 indexed citations
6.
Samis, John A., et al.. (2012). Measurement of Factor V Activity in Human Plasma Using a Microplate Coagulation Assay. Journal of Visualized Experiments. 3 indexed citations
7.
Samis, John A., et al.. (2011). Development of a microplate coagulation assay for Factor V in human plasma. Thrombosis Journal. 9(1). 11–11. 11 indexed citations
8.
Sangrar, Waheed, et al.. (2004). Hemostatic and hematological abnormalities in gain‐of‐function fps/fes transgenic mice are associated with the angiogenic phenotype. Journal of Thrombosis and Haemostasis. 2(11). 2009–2019. 3 indexed citations
9.
10.
11.
Giles, Alan R., et al.. (2001). The Type of Factor VIII Deficient Plasma Used Influences the Performance of the Nijmegen Modification of the Bethesda Assay for Factor VIII Inhibitors. Thrombosis and Haemostasis. 86(12). 1435–1439. 25 indexed citations
12.
13.
Samis, John A., et al.. (2000). Proteolytic processing of human coagulation factor IX by plasmin. Blood. 95(3). 943–951. 31 indexed citations
14.
Bell, Robert M., Zongchao Jia, John A. Samis, et al.. (2000). Fluorescence Properties and Functional Roles of Tryptophan Residues 60d, 96, 148, 207, and 215 of Thrombin. Journal of Biological Chemistry. 275(38). 29513–29520. 10 indexed citations
15.
Samis, John A., et al.. (1998). Neutrophil Elastase Cleavage of Human Factor IX Generates an Activated Factor IX-Like Product Devoid of Coagulant Function. Blood. 92(4). 1287–1296. 23 indexed citations
16.
Samis, John A., et al.. (1997). Human Neutrophil Elastase Activates Human Factor V but Inactivates Thrombin-Activated Human Factor V. Blood. 90(3). 1065–1074. 1 indexed citations
17.
Côté, Hélène C. F., Laszlo Bajzar, John A. Samis, et al.. (1997). Functional Characterization of Recombinant Human Meizothrombin and Meizothrombin(desF1). Journal of Biological Chemistry. 272(10). 6194–6200. 41 indexed citations
18.
Deluca, C.I., Peter L. Davies, John A. Samis, & John S. Elce. (1993). Molecular cloning and bacterial expression of cDNA for rat calpain II 80 kDa subunit. Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression. 1216(1). 81–93. 50 indexed citations
19.
Samis, John A. & John S. Elce. (1989). Immunogold Electron-Microscopic Localization of Calpain I in Human Erythrocytes. Thrombosis and Haemostasis. 61(2). 250–253. 11 indexed citations
20.
Samis, John A., et al.. (1987). Calpain I remains intact and intracellular during platelet activation. Immunochemical measurements with monoclonal and polyclonal antibodies. Biochemical Journal. 246(2). 481–488. 50 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Alessio Branchini Breakdown of academic impact, for papers by Jung‐Sook Ha Breakdown of academic impact, for papers by Kyle Bauckman Breakdown of academic impact, for papers by Andreas Petzer Breakdown of academic impact, for papers by Liyuan Yang Breakdown of academic impact, for papers by Yumiko Uchida Breakdown of academic impact, for papers by S Yasuoka Breakdown of academic impact, for papers by Susanne Witt Breakdown of academic impact, for papers by Jessica B. von Pein
Rankless by CCL
2026