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  1. Article

    Assessing pre- and post-zygotic barriers between North Atlantic eels (Anguilla anguilla and A. rostrata)

    Elucidating barriers to gene flow is important for understanding the dynamics of speciation. Here we investigate pre- and post-zygotic mechanisms acting between the two hybridizing species of Atlantic eels: Angui...

    M W Jacobsen, L Smedegaard, S R Sørensen, J M Pujolar, P Munk, B Jónsson… in Heredity (2017)

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  2. Article

    Open Access

    Signatures of natural selection between life cycle stages separated by metamorphosis in European eel

    Species showing complex life cycles provide excellent opportunities to study the genetic associations between life cycle stages, as selective pressures may differ before and after metamorphosis. The European e...

    J. M. Pujolar, M. W. Jacobsen, D. Bekkevold, J. Lobón-Cervià, B. Jónsson… in BMC Genomics (2015)

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  3. Article

    Assessing patterns of hybridization between North Atlantic eels using diagnostic single-nucleotide polymorphisms

    The two North Atlantic eel species, the European eel (Anguilla anguilla) and the American eel (Anguilla rostrata), spawn in partial sympatry in the Sargasso Sea, providing ample opportunity to interbreed. In this...

    J M Pujolar, M W Jacobsen, T D Als, J Frydenberg, E Magnussen, B Jónsson… in Heredity (2014)

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  4. No Access

    Article

    Long-Term Morbidity and Mortality After a Clinically Diagnosed Vertebral Fracture in the Elderly—a 12- and 22-Year Follow-up of 257 Patients

    The objective of this study was to analyze the long-term morbidity and mortality in patients with a clinically diagnosed vertebral fracture. Seventy men with a mean age of 70 years (range 50–91 years) and 187 ...

    R. Hasserius, M.K. Karlsson, B. Jónsson… in Calcified Tissue International (2005)

  5. Article

    Single breath exhaled nitric oxide (NO) in the newborn

    A Artlich, B Jónsson, M Bhiladvala, P A Lönnqvist, H Lagercrantz… in Pediatric Research (1999)

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  6. No Access

    Article

    Outcome after limited posterior surgery for thoracic and lumbar spine metastases

    The efficacy of ‘limited posterior surgery’ for metastases in the thoracic and lumbar spine was studied prospectively in 51 patients (32 men and 19 women, mean age 64 years). The most common primary tumors wer...

    B. Jónsson, L. Sjöström, C. Olerud, I. Andréasson, J. Bring… in European Spine Journal (1996)

  7. No Access

    Article

    Adjoining units to residuated Boolean algebras

    We consider a varietyV ofr-algebras, — residuated Boolean algebras, — and ask under what conditions a memberA ofV can be embedded in a memberA' having a unit element. The answer, although quite simple, is somewha...

    P. Jipsen, B. Jónsson, J. Rafter in algebra universalis (1995)

  8. No Access

    Article

    Surgery of cervical spine metastases: A retrospective study

    Fifty-one consecutive patients with metastatic lesions of the cervical spine were treated surgically. The most common primary tumor types were breast cancer and myeloma. In 14 (27%) patients, the cervical lesi...

    B. Jónsson, H. Jónsson Jr., G. Karlstróm, L. Sjöström in European Spine Journal (1994)

  9. No Access

    Article

    Free algebras in discriminator varieties

    We investigate V-free algebras onn generators,F n =F r (V, n), where V is a discriminator variety and, more specifically, where V is a variety...

    H. Andréka, B. Jónsson, I. Németi in algebra universalis (1991)

  10. No Access

    Chapter and Conference Paper

    Relatively free relation algebras

    H. Andréka, B. Jónsson, I. Németi in Algebraic Logic and Universal Algebra in C… (1990)

  11. No Access

    Article

    The class of arguesian lattices is self-dual

    B. Jónsson in algebra universalis (1972)

  12. No Access

    Article

    Relatively free products of lattices

    B. Jónsson in algebra universalis (1971)