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- Aamodt, K., et al.
(författare)
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The ALICE experiment at the CERN LHC
- 2008
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Ingår i: Journal of Instrumentation. - 1748-0221. ; 3:S08002
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Forskningsöversikt (refereegranskat)abstract
- ALICE (A Large Ion Collider Experiment) is a general-purpose, heavy-ion detector at the CERN LHC which focuses on QCD, the strong-interaction sector of the Standard Model. It is designed to address the physics of strongly interacting matter and the quark-gluon plasma at extreme values of energy density and temperature in nucleus-nucleus collisions. Besides running with Pb ions, the physics programme includes collisions with lighter ions, lower energy running and dedicated proton-nucleus runs. ALICE will also take data with proton beams at the top LHC energy to collect reference data for the heavy-ion programme and to address several QCD topics for which ALICE is complementary to the other LHC detectors. The ALICE detector has been built by a collaboration including currently over 1000 physicists and engineers from 105 Institutes in 30 countries, Its overall dimensions are 16 x 16 x 26 m(3) with a total weight of approximately 10 000 t. The experiment consists of 18 different detector systems each with its own specific technology choice and design constraints, driven both by the physics requirements and the experimental conditions expected at LHC. The most stringent design constraint is to cope with the extreme particle multiplicity anticipated in central Pb-Pb collisions. The different subsystems were optimized to provide high-momentum resolution as well as excellent Particle Identification (PID) over a broad range in momentum, up to the highest multiplicities predicted for LHC. This will allow for comprehensive studies of hadrons, electrons, muons, and photons produced in the collision of heavy nuclei. Most detector systems are scheduled to be installed and ready for data taking by mid-2008 when the LHC is scheduled to start operation, with the exception of parts of the Photon Spectrometer (PHOS), Transition Radiation Detector (TRD) and Electro Magnetic Calorimeter (EMCal). These detectors will be completed for the high-luminosity ion run expected in 2010. This paper describes in detail the detector components as installed for the first data taking in the summer of 2008.
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| 2. |
- Wade, C. M., et al.
(författare)
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Genome Sequence, Comparative Analysis, and Population Genetics of the Domestic Horse
- 2009
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Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 326:5954, s. 865-867
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Tidskriftsartikel (refereegranskat)abstract
- We report a high-quality draft sequence of the genome of the horse ( Equus caballus). The genome is relatively repetitive but has little segmental duplication. Chromosomes appear to have undergone few historical rearrangements: 53% of equine chromosomes show conserved synteny to a single human chromosome. Equine chromosome 11 is shown to have an evolutionary new centromere devoid of centromeric satellite DNA, suggesting that centromeric function may arise before satellite repeat accumulation. Linkage disequilibrium, showing the influences of early domestication of large herds of female horses, is intermediate in length between dog and human, and there is long-range haplotype sharing among breeds.
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| 3. |
- Denoyes-Rothan, B., et al.
(författare)
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Anthracnose on strawberry in France : Situation and perspectives
- 2006
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Ingår i: Proceedings of the Vth International Strawberry Symposium. - : INTERNATIONAL SOCIETY HORTICULTURAL SCIENCE. ; , s. 277-280
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Konferensbidrag (refereegranskat)abstract
- Anthracnose, caused by Colletotrichum acutatum, on strawberry (Fragaria x ananassa) was first reported on fruit in France in 1981. Damage was later recorded on runners, petioles, foliage and crowns. The evolution of a disease control method, the molecular variability of C acutatum, the study of the interaction between pathogen and host, the different techniques of inoculation, and the last results concerning QTLs linked to resistance to C acutatum are reported, which cover 10 years of research in France.
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| 5. |
- Lerceteau-Köhler, Estelle, et al.
(författare)
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QTL analysis for sugars and organic acids in strawberry fruits
- 2006
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Ingår i: Proceedings of the Vth International Strawberry Symposium. - : INTERNATIONAL SOCIETY HORTICULTURAL SCIENCE. ; , s. 573-577
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Konferensbidrag (refereegranskat)abstract
- Improving fruit quality is an important goal for strawberry breeders. Quantitative trait loci (QTL) for fruit quality of cultivated strawberry (Fragaria x ananassa Duch.) have been identified. A segregating population of 213 individuals of a cross between ‘Capitola’ and ‘CF1116’, two genotypes with many contrasting fruit quality traits, was used in the study. Eleven traits related to sugar and acid content were evaluated for all progeny and for both parents. These traits were quantified by enzymatic and metabolic profiling using one-dimensional H-1-NMR. Depending on the trait, measurements were taken over two or three years. Progeny showed a large range of variation for most of the traits. The strongest positive correlations were observed between fructose and glucose contents, and citrate and sum of organic acids. A total of 30 significant QTLs were detected by composite interval mapping (LOD superior to LODthreshold =2.88) and spread over eight female linkage groups and seven male linkage groups in coupling phase with a percentage of variation explained by a QTL ranging from 5.7 to 14.1%. Strong co-locations of putative QTLs for fructose and glucose were detected, while other QTLs were detected for sucrose.
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