P. Bielfeld

1.0k total citations
39 papers, 822 citations indexed

About

P. Bielfeld is a scholar working on Public Health, Environmental and Occupational Health, Reproductive Medicine and Immunology. According to data from OpenAlex, P. Bielfeld has authored 39 papers receiving a total of 822 indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Public Health, Environmental and Occupational Health, 23 papers in Reproductive Medicine and 15 papers in Immunology. Recurrent topics in P. Bielfeld's work include Reproductive Biology and Fertility (21 papers), Sperm and Testicular Function (15 papers) and Reproductive System and Pregnancy (15 papers). P. Bielfeld is often cited by papers focused on Reproductive Biology and Fertility (21 papers), Sperm and Testicular Function (15 papers) and Reproductive System and Pregnancy (15 papers). P. Bielfeld collaborates with scholars based in Germany, United States and Taiwan. P. Bielfeld's co-authors include Lourens J.D. Zaneveld, Mary Lake Polan, Carlos Simón, Rajasingam S. Jeyendran, Jan-Steffen Krüssel, Yan Wen, Christopher J. De Jonge, Hong-Yuan Huang, H.H. van der Ven and William P. Kennedy and has published in prestigious journals such as The Journal of Clinical Endocrinology & Metabolism, American Journal of Obstetrics and Gynecology and Human Reproduction.

In The Last Decade

P. Bielfeld

36 papers receiving 791 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
P. Bielfeld Germany 14 522 415 337 138 121 39 822
B. Fuzzi Italy 12 453 0.9× 516 1.2× 445 1.3× 98 0.7× 73 0.6× 17 756
H. M. Beier Germany 21 475 0.9× 451 1.1× 582 1.7× 194 1.4× 137 1.1× 51 1.1k
Indira Hinduja India 20 639 1.2× 552 1.3× 214 0.6× 86 0.6× 378 3.1× 52 1.1k
Zvi Binor United States 18 829 1.6× 582 1.4× 219 0.6× 279 2.0× 160 1.3× 40 1.1k
Jianchi Ding United States 11 431 0.8× 278 0.7× 160 0.5× 173 1.3× 96 0.8× 20 570
Clare T. Taylor United Kingdom 15 505 1.0× 510 1.2× 189 0.6× 38 0.3× 186 1.5× 22 904
John A. McCoshen Canada 16 191 0.4× 227 0.5× 150 0.4× 127 0.9× 181 1.5× 37 680
Pervin Meherji India 18 492 0.9× 324 0.8× 198 0.6× 71 0.5× 186 1.5× 34 822
João Francisco Coelho de Oliveira Brazil 17 212 0.4× 335 0.8× 217 0.6× 52 0.4× 121 1.0× 57 831
J Férin Belgium 16 315 0.6× 265 0.6× 188 0.6× 102 0.7× 100 0.8× 61 733

Countries citing papers authored by P. Bielfeld

Since Specialization
Citations

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

Fields of papers citing papers by P. Bielfeld

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of P. Bielfeld

This figure shows the co-authorship network connecting the top 25 collaborators of P. Bielfeld. A scholar is included among the top collaborators of P. Bielfeld 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 P. Bielfeld. P. Bielfeld 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.
2.
Bielfeld, P., et al.. (2009). Influence of media and thermal shock on sperm capacitation. Andrologia. 28(3). 171–174.
3.
Hess, A.P., A. Schanz, Dunja Maria Baston-Büst, et al.. (2008). Expression of the vascular endothelial growth factor receptor neuropilin-1 in the human endometrium. Journal of Reproductive Immunology. 79(2). 129–136. 12 indexed citations
4.
Schmiedeberg, S. von, et al.. (2000). Pyoderma gangrenosum after cesarean delivery. American Journal of Obstetrics and Gynecology. 183(2). 502–504. 20 indexed citations
5.
Krüssel, Jan-Steffen, Barry Behr, Jens Hirchenhain, et al.. (2000). Expression of vascular endothelial growth factor mRNA in human preimplantation embryos derived from tripronuclear zygotes. Fertility and Sterility. 74(6). 1220–1226. 39 indexed citations
6.
Bielfeld, P., et al.. (1998). Increased recovery of viable spermatozoa through oscillating centrifugation. Fertility and Sterility. 70(4). 712–714. 2 indexed citations
7.
Krüssel, Jan-Steffen, Carlos Simón, María C. Rubio, et al.. (1998). Expression of interleukin-1 system mRNA in single blastomeres from human preimplantation embryos. Human Reproduction. 13(8). 2206–2211. 63 indexed citations
8.
Bielfeld, P., et al.. (1997). Interferon‐Gamma Production by the Human Preimplantation Embryo. American Journal of Reproductive Immunology. 37(6). 435–437. 13 indexed citations
9.
10.
Graf, M., et al.. (1995). Zur Rückbildung funktioneller Zysten: Hochdosierte Ovulationshemmer und Gestagentherapie ohne zusätzlichen Effekt. Geburtshilfe und Frauenheilkunde. 55(7). 387–392. 6 indexed citations
11.
Bielfeld, P., et al.. (1995). Interferon gamma and interleukin 10 levels in preimplantation embryo culture media. Journal of Assisted Reproduction and Genetics. 12(9). 590–593. 22 indexed citations
12.
Bielfeld, P., et al.. (1994). Are capacitation or calcium ion influx required for the human sperm acrosome reaction?. Fertility and Sterility. 62(6). 1255–1261. 39 indexed citations
13.
Bielfeld, P., et al.. (1994). The zona pellucida-induced acrosome reaction of human spermatozoa is mediated by protein kinases. Fertility and Sterility. 61(3). 536–541. 76 indexed citations
14.
Bielfeld, P., Rajasingam S. Jeyendran, & Lourens J.D. Zaneveld. (1993). Andrology: Osmo-sensitivity of the human sperm acrosome reaction. Human Reproduction. 8(8). 1235–1239. 10 indexed citations
15.
Bielfeld, P., et al.. (1993). Effects of peritoneal fluids from patients with endometriosis on capacitated spermatozoa. Fertility and Sterility. 60(5). 893–896. 12 indexed citations
16.
Jeyendran, Rajasingam S., et al.. (1992). Fertilizing capacity of various populations of spermatozoa within an ejaculate. Journal of Assisted Reproduction and Genetics. 9(1). 32–35. 9 indexed citations
17.
Bielfeld, P., et al.. (1992). Human Sperm Acrosin Further Studies with the Clinical Assay and Activity in a Group of Presumably Fertile Men. Journal of Andrology. 13(6). 571–578. 8 indexed citations
18.
Anderson, Robert A., et al.. (1990). Characterization and inhibitor sensitivity of human sperm phospholipase A2: Evidence against pivotal involvement of phospholipase A2 in the acrosome reaction. Molecular Reproduction and Development. 27(4). 305–325. 12 indexed citations
19.
Bielfeld, P., et al.. (1990). Effect of Egg Yolk Medium on the Acrosome Reaction of Human Spermatozoa. Journal of Andrology. 11(3). 260–269. 26 indexed citations
20.
Kennedy, William P., et al.. (1989). A Simple, Clinical Assay to Evaluate The Acrosin Activity of Human Spermatozoa. Journal of Andrology. 10(3). 221–231. 134 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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