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| 3. |
- Jansson, Stefan, 1959-, et al.
(författare)
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Antenna protein composition of PS I and PS II in thylakoid sub-domains
- 1997
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Ingår i: Biochimica et Biophysica Acta - Bioenergetics. - 0005-2728 .- 1879-2650. ; 1320:3, s. 297-309
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Tidskriftsartikel (refereegranskat)abstract
- Spinach thylakoids were separated into grana core, grana margin, and two different stromal lamella fractions in the absence of detergents. The levels of all light-harvesting chlorophyll a/b-binding (LHC) proteins were determined in all fractions, and were normalised to the amount of Photosystem I (PS I) and Photosystem II (PS II) centres. PS I beta in the stroma lamellae was found to have a full complement of Lhca polypeptides and, probably, one attached LHC II trimer. PS I alpha binds additional LHC II trimers, but PS I centres located in the inner parts of the grana stack lack Lhca1 and are depleted in Lhca4. PS II beta, found in grana margins and stroma lamellae, seems to associate one monomer each of Lhcb4, Lhcb5 and Lhcb6 (CP29, CP76 and CP24, respectively) and one LHC II trimer consisting of two Lhcb1 and one Lhcb3 subunit. PS II alpha has additional LHC II trimers (consisting of Lhcb1 and Lhcb2) attached. We also find evidence for the existence of both PS I and PS II centres in the extreme stroma (probably centres being synthesised or repaired), that lack all LHC proteins. (C) 1997 Published by Elsevier Science B.V.
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| 5. |
- Isham, B, et al.
(författare)
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Aspect angle dependence of HF enhanced incoherent backscatter
- 1999
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Ingår i: ACTIVE EXPERIMENTS IN SPACE PLASMAS. - : PERGAMON PRESS LTD. - 0273-1177. ; 24:8, s. 1003-1006
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Tidskriftsartikel (refereegranskat)abstract
- An HF ionospheric interaction experiment was performed in November and December of 1997 using the EISCAT HF transmitter and 931 and 224 MHz incoherent scatter radars, all co-located near Tromso, Norway. During this experiment the pointing of the UHF radar
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| 6. |
- Opgenoorth, HJ
(författare)
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Ground-based supporting programmes for the IASTP
- 1997
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Ingår i: RESULTS OF THE IASTP PROGRAM. - : PERGAMON PRESS LTD. - 0273-1177. ; 20:4-5, s. 609-620
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- During the coming years there will be an unprecedented opportunity to study structure and dynamics of the magnetosphere. A fleet of specialised spacecraft will very much increase our possibilities to simultaneously monitor various magnetospheric regions.
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| 7. |
- Rickman, H, et al.
(författare)
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Comet 46P/Wirtanen, the target of the Rosetta mission
- 1998
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Ingår i: SPACE EXPLORATION OF THE OUTER SPACE SOLAR SYSTEM AND COMETARY NUCLEI. - : PERGAMON PRESS LTD. - 0273-1177. ; 21:11, s. 1491-1504
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- We present a summary of the observational data on periodic comet 46P/Wirtanen, emphasizing the recent estimates of H2O production rate from narrow-band photometry and CCD imaging with ensuing estimates of the photometric cross-section of the nucleus. A di
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| 8. |
- Thomas, N, et al.
(författare)
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Osiris - The optical, spectroscopic and infrared remote imaging system for the Rosetta orbiter
- 1998
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Ingår i: SPACE EXPLORATION OF THE OUTER SPACE SOLAR SYSTEM AND COMETARY NUCLEI. - : PERGAMON PRESS LTD. - 0273-1177. ; 21:11, s. 1505-1515
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The scientific objectives, design, and implementation of the Optical, Spectroscopic, and Infrared Remote Imaging System (OSIRIS) for the International Rosetta Mission are described. The instrument comprises two camera systems with a common electronics box
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