Roman Pyrzak

961 total citations
23 papers, 633 citations indexed

About

Roman Pyrzak is a scholar working on Reproductive Medicine, Animal Science and Zoology and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Roman Pyrzak has authored 23 papers receiving a total of 633 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Reproductive Medicine, 9 papers in Animal Science and Zoology and 8 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Roman Pyrzak's work include Ovarian function and disorders (9 papers), Animal Nutrition and Physiology (8 papers) and Assisted Reproductive Technology and Twin Pregnancy (7 papers). Roman Pyrzak is often cited by papers focused on Ovarian function and disorders (9 papers), Animal Nutrition and Physiology (8 papers) and Assisted Reproductive Technology and Twin Pregnancy (7 papers). Roman Pyrzak collaborates with scholars based in United States and Israel. Roman Pyrzak's co-authors include Richard P. Dickey, Steven N. Taylor, Peter Y. Lu, Belinda M. Sartor, T.D. SIOPES, Phillip H. Rye, G. T. Goodman, D. N. Curole, N. Snapir and Jason C.H. Shih and has published in prestigious journals such as Journal of Nutrition, Human Reproduction and Fertility and Sterility.

In The Last Decade

Roman Pyrzak

23 papers receiving 595 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Roman Pyrzak United States 15 405 292 251 137 42 23 633
B Błaszczyk Poland 12 164 0.4× 142 0.5× 37 0.1× 61 0.4× 26 0.6× 67 480
Thais Rose dos Santos Hamilton Brazil 12 427 1.1× 315 1.1× 62 0.2× 56 0.4× 43 1.0× 28 634
K. Andersen Berg Norway 16 588 1.5× 543 1.9× 68 0.3× 23 0.2× 26 0.6× 30 817
L.M. Thurston United Kingdom 16 607 1.5× 499 1.7× 97 0.4× 20 0.1× 32 0.8× 20 887
Huiduo Guo China 11 151 0.4× 110 0.4× 49 0.2× 98 0.7× 23 0.5× 19 420
R. Rajmon Czechia 14 193 0.5× 221 0.8× 32 0.1× 97 0.7× 21 0.5× 52 595
John F. Odhiambo United States 16 173 0.4× 160 0.5× 167 0.7× 32 0.2× 43 1.0× 24 638
D. M. Nogueira Brazil 14 407 1.0× 508 1.7× 71 0.3× 46 0.3× 6 0.1× 50 715
A.A. Vireque Brazil 15 386 1.0× 521 1.8× 67 0.3× 71 0.5× 16 0.4× 40 730
I Goovaerts Belgium 14 460 1.1× 564 1.9× 67 0.3× 113 0.8× 33 0.8× 32 981

Countries citing papers authored by Roman Pyrzak

Since Specialization
Citations

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

Fields of papers citing papers by Roman Pyrzak

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Roman Pyrzak

This figure shows the co-authorship network connecting the top 25 collaborators of Roman Pyrzak. A scholar is included among the top collaborators of Roman Pyrzak 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 Roman Pyrzak. Roman Pyrzak 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.
Dickey, Richard P., et al.. (2006). Steps taken to protect and rescue cryopreserved embryos during Hurricane Katrina. Fertility and Sterility. 86(3). 732–734. 8 indexed citations
2.
Dickey, Richard P., Steven N. Taylor, Peter Y. Lu, et al.. (2005). Risk factors for high-order multiple pregnancy and multiple birth after controlled ovarian hyperstimulation: Results of 4,062 intrauterine insemination cycles. Fertility and Sterility. 83(3). 671–683. 51 indexed citations
3.
Dickey, Richard P., Steven N. Taylor, Peter Y. Lu, Belinda M. Sartor, & Roman Pyrzak. (2004). Reply of the authors. Fertility and Sterility. 82(3). 764–764. 1 indexed citations
4.
Dickey, Richard P., Steven N. Taylor, Peter Y. Lu, Belinda M. Sartor, & Roman Pyrzak. (2004). Clomiphene citrate intrauterine insemination (IUI) before gonadotropin IUI affects the pregnancy rate and the rate of high-order multiple pregnancies. Fertility and Sterility. 81(3). 545–550. 12 indexed citations
5.
Dickey, Richard P., Steven N. Taylor, Peter Y. Lu, et al.. (2002). Effect of diagnosis, age, sperm quality, and number of preovulatory follicles on the outcome of multiple cycles of clomiphene citrate-intrauterine insemination. Fertility and Sterility. 78(5). 1088–1095. 94 indexed citations
6.
Dickey, Richard P., Belinda M. Sartor, Steven N. Taylor, et al.. (2001). Oral contraceptives, not GnRH suppression, may be responsible for very low endogenous LH during IVF cycles.. Fertility and Sterility. 76(3). S237–S237. 2 indexed citations
7.
Dickey, Richard P., Steven N. Taylor, Peter Y. Lu, et al.. (2001). Relationship of follicle numbers and estradiol levels to multiple implantation in 3,608 intrauterine insemination cycles. Fertility and Sterility. 75(1). 69–78. 63 indexed citations
8.
Dickey, Richard P., et al.. (1999). Comparison of the sperm quality necessary for successful intrauterine insemination with World Health Organization threshold values for normal sperm. Fertility and Sterility. 71(4). 684–689. 111 indexed citations
9.
Dickey, Richard P., Steven N. Taylor, D. N. Curole, et al.. (1997). Relationship of clomiphene dose and patient weight to successful treatment. Human Reproduction. 12(3). 449–453. 44 indexed citations
10.
Dickey, Richard P., et al.. (1996). Infertility: Incidence of spontaneous abortion in clomiphene pregnancies. Human Reproduction. 11(12). 2623–2628. 47 indexed citations
11.
Pyrzak, Roman. (1994). Sex selection: Separation of X- and Y-bearing human spermatozoa using albumin gradients. Human Reproduction. 9(10). 1788–1790. 20 indexed citations
12.
SIOPES, T.D. & Roman Pyrzak. (1990). Effect of Intermittent Lighting on the Reproductive Performance of First-Year and Recycled Turkey Hens ,. Poultry Science. 69(1). 142–149. 26 indexed citations
13.
Shih, Jason C.H., Roman Pyrzak, & James S. Guy. (1989). Discovery of Noninfectious Viral Genes Complementary to Marek's Disease Herpes Virus in Quail Susceptible to Cholesterol-Induced Atherosclerosis. Journal of Nutrition. 119(2). 294–298. 12 indexed citations
14.
Pyrzak, Roman & T.D. SIOPES. (1989). Characteristics of oviposition patterns of turkey hens and the influence of different wavelengths of light. British Poultry Science. 30(1). 151–160. 14 indexed citations
15.
Pyrzak, Roman, et al.. (1987). The effect of light wavelength on the production and quality of eggs of the domestic hen. Theriogenology. 28(6). 947–960. 43 indexed citations
16.
Pyrzak, Roman & Jason C.H. Shih. (1987). Detection of specific DNA segments of Marek's disease herpes virus in Japanese quail susceptible to atherosclerosis. Atherosclerosis. 68(1-2). 77–85. 18 indexed citations
17.
Pyrzak, Roman & T.D. SIOPES. (1986). Effect of Light Quality on Erratic Egg Laying of Caged Turkey Hens. Poultry Science. 65(4). 795–800. 4 indexed citations
18.
Pyrzak, Roman, et al.. (1986). The Influence of Light Quality on Initiation of Egg Laying by Hens. Poultry Science. 65(1). 190–193. 16 indexed citations
19.
Pyrzak, Roman & T.D. SIOPES. (1986). The Effect of Light Color on Egg Quality of Turkey Hens in Cages. Poultry Science. 65(7). 1262–1267. 17 indexed citations
20.
Pyrzak, Roman, N. Snapir, B. Robinzon, & G. T. Goodman. (1984). The Effect of Supplementation of Daylight with Artificial Light from Various Sources and at Two Intensities on the Egg Production of Two Lines of Geese. Poultry Science. 63(9). 1846–1850. 14 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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