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Träfflista för sökning "WFRF:(Dahlqvist Peter) ;srt2:(2020-2024)"

Search: WFRF:(Dahlqvist Peter) > (2020-2024)

  • Result 21-22 of 22
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21.
  • Taromi Sandström, Olof, et al. (author)
  • Stratigraphy of the Gorstian and Ludfordian (upper Silurian) Hemse Group reefs on Gotland, Sweden
  • 2021
  • In: GFF. - : Informa UK Limited. - 1103-5897 .- 2000-0863. ; 143:1, s. 71-83
  • Journal article (peer-reviewed)abstract
    • The Hemse Group is one of the least understood stratigraphic units of the Silurian sequence of Gotland, Sweden. New results from airborne transient electromagnetic (ATEM) measurements in combination with previously published data from field studies and geophysical investigations shed new light on carbonate platform development during the early- to mid-Ludlow Hemse Group. ATEM reveals a transgressive phase that began near the Wenlock-Ludlow boundary, which resulted in deposition of marls and corresponds roughly to the Hemse limestone units a-c and the Hemse Marl NW. In this phase little or no reef development occurs. The end of the transgressive phase coincides with the weak Linde Event. The following highstand favoured extensive reef growth forming a reef barrier system of both fringing reefs and more rampiform settings with stromatoporoid biostromes and occasional biohermal buildups. The Kuppen-Snabben Unconformity Complex marks an erosional (karstic) sequence boundary and rocky shoreline and the transition from a rampiform setting with reef biostromes towards a more rimmed setting with patch reefs.
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22.
  • Wells, Daniel J., et al. (author)
  • Observations of phase changes in monoolein during high viscous injection
  • 2022
  • In: Journal of Synchrotron Radiation. - : International Union Of Crystallography. - 0909-0495 .- 1600-5775. ; 29:3, s. 602-614
  • Journal article (peer-reviewed)abstract
    • Serial crystallography of membrane proteins often employs high-viscosity injectors (HVIs) to deliver micrometre-sized crystals to the X-ray beam. Typically, the carrier medium is a lipidic cubic phase (LCP) media, which can also be used to nucleate and grow the crystals. However, despite the fact that the LCP is widely used with HVIs, the potential impact of the injection process on the LCP structure has not been reported and hence is not yet well understood. The self-assembled structure of the LCP can be affected by pressure, dehydration and temperature changes, all of which occur during continuous flow injection. These changes to the LCP structure may in turn impact the results of X-ray diffraction measurements from membrane protein crystals. To investigate the influence of HVIs on the structure of the LCP we conducted a study of the phase changes in monoolein/water and monoolein/buffer mixtures during continuous flow injection, at both atmospheric pressure and under vacuum. The reservoir pressure in the HVI was tracked to determine if there is any correlation with the phase behaviour of the LCP. The results indicated that, even though the reservoir pressure underwent (at times) significant variation, this did not appear to correlate with observed phase changes in the sample stream or correspond to shifts in the LCP lattice parameter. During vacuum injection, there was a three-way coexistence of the gyroid cubic phase, diamond cubic phase and lamellar phase. During injection at atmospheric pressure, the coexistence of a cubic phase and lamellar phase in the monoolein/water mixtures was also observed. The degree to which the lamellar phase is formed was found to be strongly dependent on the co-flowing gas conditions used to stabilize the LCP stream. A combination of laboratory-based optical polarization microscopy and simulation studies was used to investigate these observations.
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  • Result 21-22 of 22
Type of publication
journal article (22)
Type of content
peer-reviewed (22)
Author/Editor
Dahlqvist Leinhard, ... (9)
Lundberg, Peter (8)
Lund, Eva (5)
Söderkvist, Peter (3)
Lindblad-Toh, Kersti ... (3)
Dahlqvist Leinhard, ... (3)
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Lundberg, Peter, 195 ... (2)
Segelmark, Mårten (2)
Elliott, James M. (2)
Nasr, Patrik (2)
Ekstedt, Mattias (2)
Kechagias, Stergios (2)
Bruchfeld, Annette (2)
Rönnblom, Lars (2)
Calner, Mikael (2)
DAHLQVIST, PETER (2)
Eriksson, Daniel (1)
Jonsson, R (1)
Henriksson, Martin (1)
Peolsson, Anneli (1)
Peolsson, Anneli, 19 ... (1)
Karlsson, Anette (1)
Edén Engström, Britt (1)
Kozyrev, Sergey V. (1)
Gunnarsson, Iva (1)
Martin, Javier (1)
Landegren, Nils, 198 ... (1)
Aranda-Guillen, Mari ... (1)
Löf, Marie (1)
Olsson, M. (1)
Dahlqvist, Johanna, ... (1)
Eloranta, Maija-Leen ... (1)
Swahn, Eva, 1949- (1)
Bae, Sang-Cheol (1)
Bang, So-Young (1)
Edberg, Jeffrey C. (1)
Gregersen, Peter K. (1)
Kimberly, Robert P. (1)
Engvall, Jan, 1953- (1)
Östgren, Carl Johan, ... (1)
Alfredsson, Joakim, ... (1)
Klareskog, Lars (1)
Omdal, R (1)
Ragnarsson, Oskar, 1 ... (1)
Erlström, Mikael (1)
Ahlberg, Per (1)
Lundberg, Frans (1)
JOACHIMSKI, MICHAEL ... (1)
Lehnert, Oliver (1)
Alfredsson, Lars (1)
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University
Linköping University (16)
Umeå University (7)
Uppsala University (7)
Lund University (5)
Karolinska Institutet (5)
University of Gothenburg (4)
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Örebro University (3)
Royal Institute of Technology (1)
Stockholm University (1)
Jönköping University (1)
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Language
English (22)
Research subject (UKÄ/SCB)
Medical and Health Sciences (18)
Natural sciences (5)

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