Zobrazeno 1 - 10 of 103 pro vyhledávání: '"J. A. Persson"'
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Akademický článek
Interleukin 4 induces rapid mucin transport, increases mucus thickness and quality and decreases colitis and Citrobacter rodentium in contact with epithelial cells
Autor: S. Sharba, N. Navabi, M. Padra, J. A. Persson, M. P. Quintana-Hayashi, J. K. Gustafsson, L. Szeponik, V. Venkatakrishnan, Å. Sjöling, S. Nilsson, M. Quiding-Järbrink, M. E. V. Johansson, S. K. Linden
Publikováno v: Virulence, Vol 10, Iss 1, Pp 97-117 (2019)
Citrobacter rodentium infection is a murine model for pathogenic intestinal Escherichia coli infection. C. rodentium infection causes an initial decrease in mucus layer thickness, followed by an increase during clearance. We aimed to identify the cau
Externí odkaz: https://doaj.org/article/36864f13f54647fab590f018d7af0457
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2
'Never at rest': developing a conceptual framework for descriptions of ‘force’ in physics textbooks
Autor: Berit Bungum, J. R. Persson, Lars Rikard Stavrum
Publikováno v: Nordic Studies in Science Education
Nordina: Nordic Studies in Science Education, Vol 16, Iss 2 (2020)
The concept of ‘force’ is abstract and challenging for many physics students, and many studies have revealed misconceptions that hinder students’ understanding and learning in classical physics. One reason for this may be the multifaceted natur
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ee28d739eddab476f6e5ee800b246a6
https://doi.org/10.5617/nordina.7857
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3
Design parameter study to extend the capacity range of dry twin screw compressors
Autor: J-G Persson
Publikováno v: IOP Conference Series: Materials Science and Engineering. 1267:012009
The possibility for extending the capacity range for oil-free dry twin screw compressors has been studied. Basic geometry parameters influence on compressor performance has been derived. The two parameters shaft speed and rotor diameter are critical.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d7a83702ca7f17ac86acd182c23ba16
https://doi.org/10.1088/1757-899x/1267/1/012009
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5
First-year university students' perception of chemical bonding and bond energy
Autor: Per-Odd Eggen, J. R. Persson, Iselin Grav Aakre, Hilde Lea Lein
Publikováno v: Nordic Journal of STEM Education
First-year university students’ knowledge and conceptual understanding of general chemistry has been investigated using a multiple-choice concept inventory (Chemical Concept Inventory 3.0/CCI 3.0) as a pre-test (n = 221) and a post-test (n = 90) in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59141f0cc2a5d2b98b9cb1ff3bc74d78
https://doi.org/10.5324/njsteme.v4i2.3300
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7
Calculation of the Differential Breit–Rosenthal Effect in the 6s6p 3p1,2 States of Hg
Autor: Tarjei Heggset, J. R. Persson
Publikováno v: Atoms, Vol 8, Iss 86, p 86 (2020)
Atoms
Volume 8
Issue 4
Studies of the hyperfine anomaly has found a renewed interest with the recent development of techniques to study the properties of long chains of unstable nuclei. By using the hyperfine structure for determining the nuclear magnetic dipole moments, t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78648a7a90775c88b08ddac120681b49
https://www.mdpi.com/2218-2004/8/4/86
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8
Hyperfine Anomaly in Eu Isotopes and the Universiability of the Moskowitz–Lombardi Formula
Autor: J. R. Persson
Publikováno v: Atoms, Vol 8, Iss 1, p 5 (2020)
Atoms
Volume 8
Issue 1
A method for determining the hyperfine anomaly, without using the nuclear magnetic moments, is used on a series of unstable isotopes of Eu. The large number of experimental data in Eu makes it possible to extract the hyperfine anomaly for a number of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe1a96b8f5279553727def8a0c396a79
http://hdl.handle.net/11250/2641308
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9
The effect of captions and written text on viewing behavior in educational videos
Autor: Eirik Wattengård, J. R. Persson, Magnus B. Lilledahl
Publikováno v: LUMAT, Vol 7, Iss 1 (2019)
LUMAT: International Journal on Math, Science and Technology Education
The use of videos as learning objects has increased together with an increased variation in the designs of these educational videos. However, to create effective learning objects it is important to have detailed information about how users perceive a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce0877ce98ef01e721da42dbb41c1740
https://doi.org/10.31129/lumat.7.1.328
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10
Perceived benefits from agroforestry landscapes across North-Eastern Europe: What matters and for whom?
Autor: Tobias Plieninger, J-O. Persson, José Muñoz-Rojas, D. Surová, L. Dawson, Teresa Pinto-Correia, Marine Elbakidze
Publikováno v: Landscape and Urban Planning. 209:104044
Agroforestry landscapes are crucial to human wellbeing; however, they are in sharp decline across Europe. Improved understanding of the complexity of agroforestry landscapes within different biophysical, social-cultural, economic and governance conte
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a9d63f57f414d2696ab3aca58339c095
https://doi.org/10.1016/j.landurbplan.2021.104044
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