Demetra Callas

420 total citations
26 papers, 340 citations indexed

About

Demetra Callas is a scholar working on Hematology, Surgery and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Demetra Callas has authored 26 papers receiving a total of 340 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Hematology, 10 papers in Surgery and 7 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Demetra Callas's work include Blood Coagulation and Thrombosis Mechanisms (16 papers), Heparin-Induced Thrombocytopenia and Thrombosis (9 papers) and Protease and Inhibitor Mechanisms (6 papers). Demetra Callas is often cited by papers focused on Blood Coagulation and Thrombosis Mechanisms (16 papers), Heparin-Induced Thrombocytopenia and Thrombosis (9 papers) and Protease and Inhibitor Mechanisms (6 papers). Demetra Callas collaborates with scholars based in United States, Germany and France. Demetra Callas's co-authors include Jawed Fareed, Debra Hoppensteadt, J. Fareed, Edward W. Bermes, Jeanine M. Walenga, Omer Iqbal, Walter Jeske, Peter Bacher, Debra A. Hoppensteadt and Bruce Lewis and has published in prestigious journals such as Clinical Chemistry, Thrombosis and Haemostasis and Thrombosis Research.

In The Last Decade

Demetra Callas

24 papers receiving 311 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Demetra Callas United States 12 159 128 115 100 50 26 340
H. M. Sanderson United Kingdom 6 211 1.3× 93 0.7× 241 2.1× 98 1.0× 76 1.5× 7 477
Marie-Blanche Onselaer United Kingdom 6 177 1.1× 55 0.4× 124 1.1× 49 0.5× 65 1.3× 8 310
Peter J. Thurlow Australia 13 131 0.8× 54 0.4× 54 0.5× 48 0.5× 67 1.3× 33 397
Rosalie Gemmell Australia 9 163 1.0× 57 0.4× 46 0.4× 35 0.3× 34 0.7× 10 296
B Lombardi Italy 4 130 0.8× 92 0.7× 125 1.1× 56 0.6× 15 0.3× 4 360
SG Brown United States 4 340 2.1× 48 0.4× 70 0.6× 84 0.8× 15 0.3× 4 406
G. Pfliegler Hungary 12 129 0.8× 36 0.3× 100 0.9× 59 0.6× 43 0.9× 21 329
M. Chevrot France 4 43 0.3× 67 0.5× 157 1.4× 67 0.7× 39 0.8× 9 281
Giuliana Merati Italy 9 263 1.7× 27 0.2× 99 0.9× 164 1.6× 35 0.7× 14 422
Benjamin E. J. Spurgeon United Kingdom 11 151 0.9× 32 0.3× 69 0.6× 15 0.1× 90 1.8× 23 309

Countries citing papers authored by Demetra Callas

Since Specialization
Citations

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

Fields of papers citing papers by Demetra Callas

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Demetra Callas

This figure shows the co-authorship network connecting the top 25 collaborators of Demetra Callas. A scholar is included among the top collaborators of Demetra Callas 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 Demetra Callas. Demetra Callas 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.
Callas, Demetra, et al.. (2012). Comparison of the Anticoagulant Activities of Thrombin Inhibitors as Assessed by Thromboelastographic Analysis. Seminars in Thrombosis and Hemostasis. 21(S 04). 76–79.
2.
Fareed, Jawed, Bruce Lewis, Demetra Callas, et al.. (1999). Antithrombin Agents: The New Class of Anticoagulant and Antithrombotic Drugs. Clinical and Applied Thrombosis/Hemostasis. 5(1_suppl). S45–S55. 15 indexed citations
3.
Fareed, Jawed, Debra A. Hoppensteadt, Fred Leya, et al.. (1999). State-of-the-Art-Review : Thrombogenesis in Myocardial Infarction and Related Syndromes: The Role of Molecular Markers in Diagnosis and Management. Clinical and Applied Thrombosis/Hemostasis. 5(2). 78–91. 10 indexed citations
4.
Fareed, Jawed, Demetra Callas, Debra A. Hoppensteadt, Jeanine M. Walenga, & Rodger L. Bick. (1998). ANTITHROMBIN AGENTS AS ANTICOAGULANTS AND ANTITHROMBOTICS. Medical Clinics of North America. 82(3). 569–586. 7 indexed citations
5.
Kaiser, Brigitte, Demetra Callas, Jeanine M. Walenga, & Jawed Fareed. (1998). Synthetic and recombinant antithrombin drugs. Expert Opinion on Investigational Drugs. 7(6). 963–985. 4 indexed citations
6.
Callas, Demetra & Jawed Fareed. (1996). COMPARATIVE ANTICOAGULANT EFFECTS OF VARIOUS THROMBIN INHIBITORS, AS DETERMINED IN THE ECARIN CLOTTING TIME METHOD. Thrombosis Research. 83(6). 463–468. 13 indexed citations
7.
Jeske, Walter, et al.. (1996). Pharmacological Profiling of Recombinant Tissue Factor Pathway Inhibitor. Seminars in Thrombosis and Hemostasis. 22(2). 213–219. 9 indexed citations
8.
Yang, Li, Demetra Callas, Jean Marc Herbert, & Jawed Fareed. (1996). Modulation of platelet function and vascular smooth muscle contractile actions by a novel, selective, highly potent 5-HT2 antagonist (SR46349). Thrombosis Research. 81(5). 555–567. 7 indexed citations
9.
Jeske, Walter, et al.. (1996). Comparative intravenous antithrombotic actions of heparin and site directed thrombin inhibitors in a jugular vein clamping model. Thrombosis Research. 82(2). 187–191. 4 indexed citations
10.
Callas, Demetra, et al.. (1995). Comparative Pharmacology of Site Directed Antithrombin Agents. Implication in Drug Development. Thrombosis and Haemostasis. 74(1). 473–481. 26 indexed citations
11.
Fareed, J., Demetra Callas, Debra Hoppensteadt, & Edward W. Bermes. (1995). Tissue factor antigen levels in various biological fluids. Blood Coagulation & Fibrinolysis. 6(Sup 1). S32–S36. 50 indexed citations
12.
Callas, Demetra, et al.. (1995). Direct inhibition of protein Ca by site directed thrombin inhibitors: Implications in anticoagulant and thrombolytic therapy. Thrombosis Research. 78(5). 457–460. 6 indexed citations
13.
Callas, Demetra, Omer Iqbal, Debra Hoppensteadt, & Jawed Fareed. (1995). Fibrinolytic Compromise by Synthetic and Recombinant Thrombin Inhibitors: Implications in the Treatment of Thrombotic Disorders. Clinical and Applied Thrombosis/Hemostasis. 1(2). 114–124. 5 indexed citations
14.
Callas, Demetra, et al.. (1995). Comparative Studies on the Anticoagulant and Protease Generation Inhibitory Actions of Newly Developed Site-Directed Thrombin Inhibitory Drugs. Seminars in Thrombosis and Hemostasis. 21(2). 177–183. 24 indexed citations
15.
Callas, Demetra, Peter Bacher, & J. Fareed. (1995). Studies on the Thrombogenic Effects of Recombinant Tissue Factor. Seminars in Thrombosis and Hemostasis. 21(2). 166–176. 3 indexed citations
16.
Jeske, Walter, et al.. (1995). Antithrombin III Affinity Dependence on the Anticoagulant, Antiprotease, and Tissue Factor Pathway Inhibitor Actions of Heparins. Seminars in Thrombosis and Hemostasis. 21(2). 193–200. 5 indexed citations
17.
Callas, Demetra, Peter Bacher, Omer Iqbal, Debra Hoppensteadt, & Jawed Fareed. (1994). Fibrinolytic compromise by simultaneous administration of site-directed inhibitors of thrombin. Thrombosis Research. 74(3). 193–205. 19 indexed citations
18.
Callas, Demetra, D. Hoppensteadt, Walter Jeske, et al.. (1993). Comparative pharmacologic profile of a glycosaminoglycan mixture, Sulodexide, and a chemically modified heparin derivative, Suleparoide.. PubMed. 19 Suppl 1. 49–57. 21 indexed citations
19.
Callas, Demetra, et al.. (1993). Molecular weight and biochemical profile of a chemically modified heparin derivative, Suleparoide®. Thrombosis Research. 69(4). 369–376. 2 indexed citations
20.
Bacher, Peter, D. Welzel, Omer Iqbal, et al.. (1992). The thrombolytic potency of LMW-heparin compared to urokinase in a rabbit jugular vein clot lysis model. Thrombosis Research. 66(2-3). 151–158. 19 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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