Ragnar Thomassen

581 total citations
18 papers, 430 citations indexed

About

Ragnar Thomassen is a scholar working on Agronomy and Crop Science, Public Health, Environmental and Occupational Health and Reproductive Medicine. According to data from OpenAlex, Ragnar Thomassen has authored 18 papers receiving a total of 430 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Agronomy and Crop Science, 7 papers in Public Health, Environmental and Occupational Health and 7 papers in Reproductive Medicine. Recurrent topics in Ragnar Thomassen's work include Reproductive Physiology in Livestock (8 papers), Reproductive Biology and Fertility (7 papers) and Veterinary Equine Medical Research (7 papers). Ragnar Thomassen is often cited by papers focused on Reproductive Physiology in Livestock (8 papers), Reproductive Biology and Fertility (7 papers) and Veterinary Equine Medical Research (7 papers). Ragnar Thomassen collaborates with scholars based in Norway, United Kingdom and Ireland. Ragnar Thomassen's co-authors include W. Farstad, Anette Krogenæs, K. Andersen Berg, E.D. Watson, Erik Ropstad, Torres Sweeney, Bert Masschaele, Jan L. Lyche, Irma C. Oskam and Audun Stien and has published in prestigious journals such as Bone, Reproduction and Theriogenology.

In The Last Decade

Ragnar Thomassen

18 papers receiving 411 citations

Peers

Countries citing papers authored by Ragnar Thomassen

Since Specialization

Citations

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

Fields of papers citing papers by Ragnar Thomassen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ragnar Thomassen

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

All Works

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18 of 18 papers shown

#	Work	Indexed citations
1	A retrospective cohort study on fertility in the Norwegian Coldblooded trotter after artificial insemination with cooled, shipped versus fresh extended semen 2015 ·Acta veterinaria Scandinavica ·(unknown), Ane Nødtvedt, W. Farstad, Ragnar Thomassen	9
2	A clinical study of canine collagen type III glomerulopathy 2013 ·BMC Veterinary Research ·(unknown), Anna Vigdís Eggertsdóttir, Ragnar Thomassen, Frode Lingaas, J. H. Jansen	8
3	A canine autosomal recessive model of collagen type III glomerulopathy 2012 ·Laboratory Investigation ·(unknown), Frode Lingaas, Tina Bjørnlund Bønsdorff, Anna Vigdís Eggertsdóttir, Ann Margaret Grøndahl, Ragnar Thomassen, Agnes B. Fogo, J. H. Jansen	7
4	Loss of heterozygosity at the FLCN locus in early renal cystic lesions in dogs with renal cystadenocarcinoma and nodular dermatofibrosis 2009 ·Mammalian Genome ·Tina Bjørnlund Bønsdorff, J. H. Jansen, Ragnar Thomassen, Frode Lingaas	14
5	Artificial insemination in canids: A useful tool in breeding and conservation 2008 ·Theriogenology ·Ragnar Thomassen, W. Farstad	69
6	Micro-computed tomography of early lesions of osteochondrosis in the tarsus of foals 2008 ·Bone ·Kristin Olstad, Veerle Cnudde, Bert Masschaele, Ragnar Thomassen, N. I. Dolvik	41
7	Valproate affects reproductive endocrine function, testis diameter and some semen variables in non-epileptic adolescent goat bucks 2008 ·Theriogenology ·Anette Krogenæs, Erik Taubøll, Audun Stien, Irma C. Oskam, Jan L. Lyche, Ellen Dahl, Ragnar Thomassen, Torres Sweeney, Erik Ropstad	25
8	Artificial insemination with frozen semen in dogs: A retrospective study of 10 years using a non-surgical approach 2006 ·Theriogenology ·Ragnar Thomassen, (unknown), Anette Krogenæs, (unknown), K. Andersen Berg, W. Farstad	66
9	Effects of long-term maternal exposure to low doses of PCB126 and PCB153 on the reproductive system and related hormones of young male goats 2005 ·Reproduction ·Irma C. Oskam, Jan L. Lyche, Anette Krogenæs, Ragnar Thomassen, Janneche Utne Skaare, Richard Wiger, Ellen Dahl, Torres Sweeney, Audun Stien, Erik Ropstad	53
10	Insulin-like growth factors-I and -II and insulin-like growth factor-binding protein-2 in dominant equine follicles during spring transition and the ovulatory season 2004 ·Reproduction ·E.D. Watson, (unknown), Ragnar Thomassen, Scott Thomson, Kathryn J. Woad, D. G. Armstrong	10
11	Expression of messenger ribonucleic acid encoding for steroidogenic acute regulatory protein and enzymes, and luteinizing hormone receptor during the spring transitional season in equine follicles 2003 ·Domestic Animal Endocrinology ·Elaine D. Watson, (unknown), Mike Steele, Ragnar Thomassen, Hanne Gervi Pedersen, Tony Bramley, Charis O Hogg, David G. Armstrong	17
12	Association of uterine edema with follicle waves around the onset of the breeding season in pony mares 2003 ·Theriogenology ·E.D. Watson, Ragnar Thomassen, (unknown)	14
13	Matrix metalloproteinase-2 and -9 secretion by the equine ovary during follicular growth and prior to ovulation 2003 ·Animal Reproduction Science ·Simon C. Riley, Ragnar Thomassen, (unknown), Rosemary Leask, Hanne Gervi Pedersen, Elaine D. Watson	16
14	Concentrations of inhibin, progesterone and oestradiol in fluid from dominant and subordinate follicles from mares during spring transition and the breeding season 2002 ·Animal Reproduction Science ·E.D. Watson, Ragnar Thomassen, Mike Steele, (unknown), Rosemary Leask, N. P. Groome, Simon C. Riley	33
15	Artificial insemination with frozen semen in dogs: a retrospective study. 2001 ·PubMed ·Ragnar Thomassen, W. Farstad, Anette Krogenæs, (unknown), K. Andersen Berg	22
16	The Use of a Dichromatic Stain Method (Spermac®) for Determining Changes in the Acrosomal Integrity of Boar Semen during Cryopreservation 1995 ·Reproduction in Domestic Animals ·H Paulenz, (unknown), K. Andersen Berg, Ragnar Thomassen	8
17	In vitro maturation and fertilization of oocytes from Norwegian semi-domestic reindeer () 1994 ·Theriogenology ·Anette Krogenæs, Erik Ropstad, Ragnar Thomassen, (unknown), M. Forsberg	15
18	Insemination with Stallion Semen Frozen in 0,5 ml Straws 1993 ·Reproduction in Domestic Animals ·Ragnar Thomassen	3

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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