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- Elsik, Christine G., et al.
(författare)
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The Genome Sequence of Taurine Cattle : A Window to Ruminant Biology and Evolution
- 2009
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Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 324:5926, s. 522-528
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Tidskriftsartikel (refereegranskat)abstract
- To understand the biology and evolution of ruminants, the cattle genome was sequenced to about sevenfold coverage. The cattle genome contains a minimum of 22,000 genes, with a core set of 14,345 orthologs shared among seven mammalian species of which 1217 are absent or undetected in noneutherian (marsupial or monotreme) genomes. Cattle-specific evolutionary breakpoint regions in chromosomes have a higher density of segmental duplications, enrichment of repetitive elements, and species-specific variations in genes associated with lactation and immune responsiveness. Genes involved in metabolism are generally highly conserved, although five metabolic genes are deleted or extensively diverged from their human orthologs. The cattle genome sequence thus provides a resource for understanding mammalian evolution and accelerating livestock genetic improvement for milk and meat production.
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- Fritz, Martin, 1937
(författare)
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Industriledaren
- 2008
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Ingår i: Oscar Ekman - en portalgestalt. - Göteborg : University of Gothenburg. ; , s. 21-30
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- I artikeln belyses Oscar Ekmans roll som industriledare i Göteborg, främst som mångårig, dominerande chef för det Carnegieska sockerbruket vid Klippan.
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| 13. |
- Fritz, Martin, 1937
(författare)
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Sveriges industrialisering och släkten Keiller
- 2008
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Bok (övrigt vetenskapligt/konstnärligt)abstract
- Medlemmar av familjen Keiller spelade en viktig roll för Göteborgs indutrialisering under 1800-talet. So ägaqre till Keillers Mekaniska Verkstad vid Skeppsbron - föregångare till Götaverken - levererade de mekanisk utrustning till andra industrier och medverkade till uppbyggnaden av en modern infrastruktur, gasverk, broar, järnvägsmateriel. Familjen engagerade sig också i gruvbrytning och koppartiillverkning i Bregslagen
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| 17. |
- Karlsson, Birgit, 1952, et al.
(författare)
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SKF - A global story 1907-2007
- 2007
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Bok (övrigt vetenskapligt/konstnärligt)abstract
- A century has now passed since SKF was founded. In just a few years the company became not only one of Sweden's largest enterprises but also the world's leading manufacturer of rolling bearings. this unparalleled success was underpinned by sven Wingquist's ingenious innovatio - the self-aligning ball bearing - and also by intensive international marketing. the first factory outside Sweden was established in Luton, England in 1910. SKF had factories in numbers of other countries and representation nearly all over the world.
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| 18. |
- Karlsson, Birgit, 1952, et al.
(författare)
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SKF - Världsföretaget 1907-2007
- 2007
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Bok (övrigt vetenskapligt/konstnärligt)abstract
- SKF grundades för 100 år sedan och bara på några få år utvecklades firman till inte bara ett av Sveriges största industriföretag utan också till en världsledande tillverkare av rullningslager. Bakom denna exempellösa framgågn låg dels Sven Wingqvists snillrika uppfinning - det sfäriska kullagret - dels en intensiv internationell marknadsbearbetning. År 1910 startade den första icke-svenska tillverkningen i England, som sedan följts av en lång rad andra fabriker i många andra länder. Redan under 1920-talet var företaget representerat i nära nog alla världens länder.
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| 19. |
- Paetzold, Martin, et al.
(författare)
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Rosetta Radio Science Investigations (RSI)
- 2007
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Ingår i: Space Science Reviews. - : Springer Science and Business Media LLC. - 0038-6308 .- 1572-9672. ; 128:1-4, s. 599-627
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Forskningsöversikt (refereegranskat)abstract
- The Rosetta spacecraft has been successfully launched on 2nd March 2004 to its new target comet 67 P/Churyurnov-Gerasimenko. The science objectives of the Rosetta Radio Science Investigations (RSI) experiment address fundamental aspects of cometary physics such as the mass and bulk density of the nucleus, its gravity field, its interplanetary orbit perturbed by nongravitational forces, its size and shape, its internal structure, the composition and roughness of the nucleus surface, the abundance of large dust grains, the plasma content in the coma and the combined dust and gas mass flux. The masses of two asteroids, Steins and Lutetia, shall be determined during flybys in 2008 and 2010. respectively. Secondary objectives are the radio sounding of the solar corona during the superior conjunctions of the spacecraft with the Sun during the cruise phase. The radio carrier links of the spacecraft Telemetry, Tracking and Command (TT&C) subsystem between the orbiter and the Earth will be used for these investigations. An Ultrastable oscillator (USO) connected to both transponders of the radio subsystem serves as a stable frequency reference source for both radio downlinks at X-band (8.4 GHz) and S-band (2.3 GHz) in the one-way mode. The Simultaneous and coherent dual-frequency downlinks via the High Gain Antenna (HGA) permit separation of contributions from the classical Doppler shift and the dispersive media effects caused by the motion of the spacecraft with respect to the Earth and the propagation of the signals through the dispersive media, respectively.
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| 20. |
- Szatmari, Peter, et al.
(författare)
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Mapping autism risk loci using genetic linkage and chromosomal rearrangements.
- 2007
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Ingår i: Nature Genetics. - : Springer Science and Business Media LLC. - 1061-4036 .- 1546-1718. ; 39:3, s. 319-328
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Tidskriftsartikel (refereegranskat)abstract
- Autism spectrum disorders (ASDs) are common, heritable neurodevelopmental conditions. The genetic architecture of ASDs is complex, requiring large samples to overcome heterogeneity. Here we broaden coverage and sample size relative to other studies of ASDs by using Affymetrix 10K SNP arrays and 1,168 families with at least two affected individuals, performing the largest linkage scan to date while also analyzing copy number variation in these families. Linkage and copy number variation analyses implicate chromosome 11p12-p13 and neurexins, respectively, among other candidate loci. Neurexins team with previously implicated neuroligins for glutamatergic synaptogenesis, highlighting glutamate-related genes as promising candidates for contributing to ASDs.
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| 21. |
- Vellend, Mark, et al.
(författare)
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Homogenization of forest plant communities and weakening of species–environment relationships via agricultural land use
- 2007
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Ingår i: Journal of Ecology. - : Wiley. - 0022-0477 .- 1365-2745. ; 95, s. 565-573
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Tidskriftsartikel (refereegranskat)abstract
- 1Disturbance may cause community composition across sites to become more or less homogenous, depending on the importance of different processes involved in community assembly. In north-eastern North America and Europe local (alpha) diversity of forest plants is lower in forests growing on former agricultural fields (recent forests) than in older (ancient) forests, but little is known about the influence of land-use history on the degree of compositional differentiation among sites (beta diversity).2Here we analyse data from 1446 sites in ancient and recent forests across 11 different landscapes in north-eastern North America and Europe to demonstrate decreases in beta diversity and in the strength of species–environment relationships in recent vs. ancient forests.3The magnitude of environmental variability among sites did not differ between the two forest types. This suggests the difference in beta diversity between ancient and recent forests was not due to different degrees of environmental heterogeneity, but rather to dispersal filters that constrain the pool of species initially colonizing recent forests.4The observed effects of community homogenization and weakened relationships between species distributions and environmental gradients appear to persist for decades or longer. The legacy of human land-use history in spatial patterns of biodiversity may endure, both within individual sites and across sites, for decades if not centuries.
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| 22. |
- Wurst, Friedrich Martin, et al.
(författare)
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Measurement of direct ethanol metabolites suggests higher rate of alcohol use among pregnant women than found with the AUDIT : a pilot study in a population-based sample of Swedish women
- 2008
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Ingår i: American Journal of Obstetrics and Gynecology. - : Elsevier BV. - 0002-9378 .- 1097-6868. ; 198:4, s. 407.e1-
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES: The objective of the study was to investigate whether biomarkers of alcohol consumption would provide additional information to the use of a validated alcohol questionnaire in pregnant women. STUDY DESIGN: One hundred three pregnant women were included in the study. The women completed the Alcohol Use Disorders Identification Test (AUDIT) questionnaire, and a urine and hair sample was collected. The urine samples were used for determination of ethyl glucuronide (EtG) and ethyl sulfate and the hair samples for EtG and fatty acid ethyl esters (FAEE). RESULTS: Twenty-six women (25.2%) were identified as possible alcohol consumers by the combined use of AUDIT and direct ethanol metabolites. Seven subjects had EtG or FAEE levels in hair highly suspicious of heavy drinking, but only 1 of these were positive according to the AUDIT questionnaire CONCLUSION: The combined use of the AUDIT questionnaire and direct ethanol metabolites appear to identify more potential alcohol consumers among pregnant women than does the sole use of the AUDIT questionnaire.
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