W Ptak

2.1k total citations · 1 hit paper
67 papers, 1.8k citations indexed

About

W Ptak is a scholar working on Immunology, Radiology, Nuclear Medicine and Imaging and Physiology. According to data from OpenAlex, W Ptak has authored 67 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Immunology, 13 papers in Radiology, Nuclear Medicine and Imaging and 10 papers in Physiology. Recurrent topics in W Ptak's work include T-cell and B-cell Immunology (22 papers), Immune Cell Function and Interaction (19 papers) and Immune Response and Inflammation (12 papers). W Ptak is often cited by papers focused on T-cell and B-cell Immunology (22 papers), Immune Cell Function and Interaction (19 papers) and Immune Response and Inflammation (12 papers). W Ptak collaborates with scholars based in United States, Poland and Czechia. W Ptak's co-authors include G L Asherson, Philip W. Askenase, Richard K. Gershon, Douglas R. Green, Marek Zembala, Robert W. Rosenstein, R K Gershon, Mariusz Ptak, Krzysztof Bryniarski and Janusz Marcinkiewicz and has published in prestigious journals such as Proceedings of the National Academy of Sciences, The Journal of Experimental Medicine and The Journal of Immunology.

In The Last Decade

W Ptak

64 papers receiving 1.5k 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.

Contact and delayed hypersensitivity in the mouse. I. Active sensitization and passive transfer.

1968 333 citations W Ptak et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
W Ptak United States	22	1.2k	310	222	211	207	67	1.8k
Darien Parker United Kingdom	19	828 0.7×	273 0.9×	135 0.6×	157 0.7×	134 0.6×	55	1.6k
Alain L. de Weck Switzerland	22	561 0.5×	202 0.7×	212 1.0×	212 1.0×	304 1.5×	70	1.2k
Yukiyoshi Yanagihara Japan	23	751 0.6×	269 0.9×	656 3.0×	261 1.2×	536 2.6×	117	1.9k
Fabrizio Spinozzi Italy	27	1.1k 0.9×	138 0.4×	386 1.7×	378 1.8×	278 1.3×	98	2.4k
Masahiko Muto Japan	22	608 0.5×	507 1.6×	167 0.8×	264 1.3×	129 0.6×	87	1.5k
Carl Waltenbaugh United States	25	1.3k 1.1×	66 0.2×	214 1.0×	539 2.6×	128 0.6×	80	2.3k
Cláudia Zuany‐Amorim France	15	960 0.8×	150 0.5×	778 3.5×	297 1.4×	299 1.4×	25	1.7k
Gulnar M. Shivji Canada	19	786 0.7×	538 1.7×	116 0.5×	268 1.3×	172 0.8×	33	1.6k
Jeanne Kehren France	19	585 0.5×	482 1.6×	161 0.7×	247 1.2×	230 1.1×	26	1.3k
Matsunobu Suko Japan	22	649 0.5×	276 0.9×	719 3.2×	270 1.3×	575 2.8×	88	1.8k

Countries citing papers authored by W Ptak

Since Specialization

Citations

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

Fields of papers citing papers by W Ptak

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of W Ptak

This figure shows the co-authorship network connecting the top 25 collaborators of W Ptak. A scholar is included among the top collaborators of W Ptak 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 W Ptak. W Ptak 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

Ptak, W. (2010). The effect of friction welding self-regulation process on weld structure and hardness. Archives of Foundry Engineering. 1 indexed citations

Bryniarski, Krzysztof, Marian Szczepanik, Mariusz Ptak, & W Ptak. (2005). The influence of collagenase treatment on the production of TNF-α, IL-6 and IL-10 by testicular macrophages. Journal of Immunological Methods. 301(1-2). 186–189. 13 indexed citations

Bryniarski, Krzysztof, Katarzyna Maresz, Marian Szczepanik, Mariusz Ptak, & W Ptak. (2003). Modulation of Macrophage Activity by Proteolytic Enzymes. Differential Regulation of IL-6 and Reactive Oxygen Intermediates (ROIs) Synthesis as a Possible Homeostatic Mechanism in the Control of Inflammation. Inflammation. 27(6). 333–340. 20 indexed citations

Ptak, W, et al.. (1999). Kształtowanie struktury strefy wpływu ciepła przy spawaniu żeliwa metodą MAG/MIG i TIG. Czasopismo Techniczne. Mechanika. 63–75.

Ptak, W, et al.. (1998). Macrophage function in alloxan diabetic mice: expression of adhesion molecules, generation of monokines and oxygen and NO radicals. Clinical & Experimental Immunology. 114(1). 13–18. 22 indexed citations

Matsuda, Hiroshi, Hiroko Ushio, Vipin Paliwal, W Ptak, & Philip W. Askenase. (1995). Adoptive cell transfer of contact sensitivity-initiation mediated by nonimmune cells sensitized with monoclonal IgE antibodies. Dependence on host skin mast cells.. The Journal of Immunology. 154(10). 5080–5092. 13 indexed citations

Ptak, W, et al.. (1995). Induction of tolerance by administration of hapten-immunoglobulin conjugates is associated with decreased IL-2 and IL-4 production. Archives of Dermatological Research. 287(2). 123–128. 1 indexed citations

Ptak, W & Philip W. Askenase. (1992). Gamma delta T cells assist alpha beta T cells in adoptive transfer of contact sensitivity. The Journal of Immunology. 149(11). 3503–3508. 57 indexed citations

Ptak, W, Charles A. Janeway, & Patrick M. Flood. (1988). Immunoregulatory role of Ig isotypes. II. Activation of cells that block induction of contact sensitivity responses by antibodies of IgG2a and IgG2b isotypes.. The Journal of Immunology. 141(3). 765–773. 12 indexed citations

10.

Ptak, W, et al.. (1988). Sex differences in regulation of contact sensitivity reaction in mice. Clinical Immunology and Immunopathology. 47(3). 289–295. 8 indexed citations

11.

Ptak, W, et al.. (1986). Differential Effect of Experimental Diabetes on the Early and Late Phase of Contact Sensitivity Reaction in Mice. International Archives of Allergy and Immunology. 81(2). 136–140.

12.

Ptak, W, et al.. (1985). Suppression and contrasuppression in the induction of contact sensitivity by the administration of cellbound antigen-antibody complexes.. The Journal of Immunology. 135(4). 2312–2318. 17 indexed citations

13.

Askenase, Philip W., Robert W. Rosenstein, & W Ptak. (1983). T cells produce an antigen-binding factor with in vivo activity analogous to IgE antibody.. The Journal of Experimental Medicine. 157(3). 862–873. 65 indexed citations

14.

Ptak, W, et al.. (1983). Role of contrasuppression in the adoptive transfer of immunity.. The Journal of Experimental Medicine. 158(3). 982–987. 45 indexed citations

15.

Ptak, W, Richard K. Gershon, & Patrick M. Flood. (1983). Mechanisms of suppression in the transfer of contact sensitivity. Analysis of an I-J+ molecule required for Ly2 suppressor cell activity.. The Journal of Experimental Medicine. 158(6). 1822–1835. 12 indexed citations

16.

Askenase, Philip W., et al.. (1982). Specialized antigen-presenting cells. Splenic dendritic cells and peritoneal-exudate cells induced by mycobacteria activate effector T cells that are resistant to suppression.. The Journal of Experimental Medicine. 155(5). 1344–1356. 90 indexed citations

17.

Ptak, W, et al.. (1980). Role of antigen-presenting cells in the development and persistence of contact hypersensitivity.. The Journal of Experimental Medicine. 151(2). 362–375. 147 indexed citations

18.

Naidorf, Kenneth F., W Ptak, & Richard K. Gershon. (1980). Cell Interactions that Regulate the T‐Cell Dose‐Response Profile to Concanavalin A. Scandinavian Journal of Immunology. 11(1). 109–120. 5 indexed citations

19.

Ptak, W, et al.. (1978). Splenic suppressor cells in fetal and newborn mice.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 26(1-6). 1091–4. 2 indexed citations

20.

Ptak, W, Marek Zembala, & Richard K. Gershon. (1978). Intermediary role of macrophages in the passage of suppressor signals between T-cell subsets.. The Journal of Experimental Medicine. 148(2). 424–434. 78 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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