Challis

563 total citations
12 papers, 473 citations indexed

About

Challis is a scholar working on Pediatrics, Perinatology and Child Health, Agronomy and Crop Science and Endocrinology, Diabetes and Metabolism. According to data from OpenAlex, Challis has authored 12 papers receiving a total of 473 indexed citations (citations by other indexed papers that have themselves been cited), including 4 papers in Pediatrics, Perinatology and Child Health, 4 papers in Agronomy and Crop Science and 2 papers in Endocrinology, Diabetes and Metabolism. Recurrent topics in Challis's work include Reproductive Physiology in Livestock (4 papers), Birth, Development, and Health (4 papers) and Estrogen and related hormone effects (2 papers). Challis is often cited by papers focused on Reproductive Physiology in Livestock (4 papers), Birth, Development, and Health (4 papers) and Estrogen and related hormone effects (2 papers). Challis collaborates with scholars based in Canada, Australia and United States. Challis's co-authors include Nadia Alfaidy, William Gibb, S.J. Lye, John P. Newnham, Heap Rb, R. B. Heap, Michael L. Socol, F. A. Harrison, Yuji Murata and Gertjan van Dijk and has published in prestigious journals such as Reproduction, PubMed and UWA Profiles and Research Repository (University of Western Australia).

In The Last Decade

Challis

12 papers receiving 450 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Challis Canada	6	159	115	105	105	103	12	473
C.S. Forster New Zealand	7	98 0.6×	82 0.7×	101 1.0×	70 0.7×	102 1.0×	12	425
B. S. Knox New Zealand	11	122 0.8×	99 0.9×	189 1.8×	94 0.9×	161 1.6×	21	700
S.J. Lye Canada	7	192 1.2×	143 1.2×	85 0.8×	129 1.2×	49 0.5×	9	476
J. Z. Kendall United States	13	129 0.8×	184 1.6×	211 2.0×	123 1.2×	258 2.5×	28	822
Sarah Lundin‐Schiller United States	11	281 1.8×	139 1.2×	41 0.4×	212 2.0×	59 0.6×	14	476
Susan A. Grieves New Zealand	9	178 1.1×	143 1.2×	239 2.3×	133 1.3×	234 2.3×	9	881
Maximiliano Cella Argentina	16	81 0.5×	122 1.1×	199 1.9×	220 2.1×	45 0.4×	28	609
K. Chwalisz Germany	13	148 0.9×	221 1.9×	71 0.7×	275 2.6×	84 0.8×	24	645
Falguni A. Patel Canada	14	332 2.1×	274 2.4×	335 3.2×	216 2.1×	128 1.2×	16	950
Herbert M. Todd United States	11	64 0.4×	51 0.4×	31 0.3×	64 0.6×	77 0.7×	22	369

Countries citing papers authored by Challis

Since Specialization

Citations

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

Fields of papers citing papers by Challis

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Challis

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

All Works

Sort: Min cites: Since: Top N: Style:

12 of 12 papers shown

1.

Oliver, Mark H., et al.. (2003). Fetal adaptations to maternal undernutrition. UWA Profiles and Research Repository (University of Western Australia). 1 indexed citations

2.

Challis, et al.. (2002). Prostaglandins and mechanisms of preterm birth. Reproduction. 124(1). 1–17. 292 indexed citations

3.

Dijk, Gertjan van & Challis. (1989). Control and ontogeny of hypothalamic-pituitary-adrenal function in the fetal rat.. PubMed. 12(1). 1–9. 10 indexed citations

4.

Challis, et al.. (1988). Basal serum-free culture system which supports growth of fetal rat adrenal cells in primary monolayer cell culture.. PubMed. 10(5). 399–409. 1 indexed citations

5.

Challis, et al.. (1980). The disposition of [3H]cortisol after intra-amniotic administration to sheep late in pregnancy.. PubMed. 2(6). 357–63. 4 indexed citations

6.

Challis, et al.. (1980). Diurnal variations in maternal and fetal steroids in pregnant rhesus monkeys.. PubMed. 106(4). 1283–8. 37 indexed citations

7.

Challis. (1980). Endocrinology of late pregnancy and parturition.. PubMed. 22. 277–324. 11 indexed citations

8.

Challis & D. Roger Illingworth. (1972). Oestrogens in the pregnant guinea-pig. Reproduction. 31(3). 504–505. 4 indexed citations

9.

Broad, Sarah, et al.. (1972). Computer analysis of multiple hormone assays (cortisol, oestrogens, progesterone and LH).. PubMed. 226(2). 23P–24P. 1 indexed citations

10.

Challis, et al.. (1972). The rôle of oestrogens and progesterone in the onset of parturition in various species.. PubMed. 16. Suppl 16:1–23. 86 indexed citations

11.

Illingworth, D. Roger, et al.. (1971). Plasma levels of progesterone and oestrogen in the pregnant guinea-pig. Reproduction. 25(2). 305–306. 4 indexed citations

12.

Challis, F. A. Harrison, & R. B. Heap. (1971). Uterine production of oestrogens and progesterone at parturition in the sheep. Reproduction. 25(2). 306–307. 22 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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