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1.	Abat, E., et al. (författare) Study of the response of the ATLAS central calorimeter to pions of energies from 3 to 9 GeV 2009 Ingår i: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. - : Elsevier BV. - 0167-5087 .- 0168-9002 .- 1872-9576. ; 607:2, s. 372-386 Tidskriftsartikel (refereegranskat)abstract A fully instrumented slice of the ATLAS central detector was exposed to test beams from the SPS (Super Proton Synchrotron) at CERN in 2004. in this paper, the response of the central calorimeters to pions with energies in the range between 3 and 9 GeV is presented. The linearity and the resolution of the combined calorimetry (electromagnetic and hadronic calorimeters) was measured and compared to the prediction of a detector simulation program using the toolkit Geant 4. (C) 2009 Elsevier B.V. All rights reserved.
2.	Abbasi, R, et al. (författare) Extending the Search for Neutrino Point Sources with IceCube above the Horizon 2009 Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 103:22, s. 221102- Tidskriftsartikel (refereegranskat)abstract Point source searches with the IceCube neutrino telescope have been restricted to one hemisphere, due to the exclusive selection of upward going events as a way of rejecting the atmospheric muon background. We show that the region above the horizon can be included by suppressing the background through energy-sensitive cuts. This improves the sensitivity above PeV energies, previously not accessible for declinations of more than a few degrees below the horizon due to the absorption of neutrinos in Earth. We present results based on data collected with 22 strings of IceCube, extending its field of view and energy reach for point source searches. No significant excess above the atmospheric background is observed in a sky scan and in tests of source candidates. Upper limits are reported, which for the first time cover point sources in the southern sky up to EeV energies.
3.	Abbasi, R., et al. (författare) SEARCH FOR HIGH-ENERGY MUON NEUTRINOS FROM THE "NAKED-EYE" GRB 080319B WITH THE IceCube NEUTRINO TELESCOPE 2009 Ingår i: Astrophysical Journal. - 0004-637X .- 1538-4357. ; 701:2, s. 1721-1731 Tidskriftsartikel (refereegranskat)abstract We report on a search with the IceCube detector for high-energy muon neutrinos from GRB 080319B, one of the brightest gamma-ray bursts (GRBs) ever observed. The fireball model predicts that a mean of 0.1 events should be detected by IceCube for a bulk Lorentz boost of the jet of 300. In both the direct on-time window of 66 s and an extended window of about 300 s around the GRB, no excess was found above background. The 90% CL upper limit on the number of track-like events from the GRB is 2.7, corresponding to a muon neutrino fluence limit of 9.5 x 10(-3) erg cm(-2) in the energy range between 120 TeV and 2.2 PeV, which contains 90% of the expected events.
4.	Abat, E., et al. (författare) The ATLAS Transition Radiation Tracker (TRT) proportional drift tube: design and performance 2008 Ingår i: Journal of Instrumentation. - 1748-0221. ; 3:2 Tidskriftsartikel (refereegranskat)abstract A straw proportional counter is the basic element of the ATLAS Transition Radiation Tracker (TRT). Its detailed properties as well as the main properties of a few TRT operating gas mixtures are described. Particular attention is paid to straw tube performance in high radiation conditions and to its operational stability.
5.	Abat, E., et al. (författare) The ATLAS TRT barrel detector 2008 Ingår i: Journal of Instrumentation. - 1748-0221. ; 3 Tidskriftsartikel (refereegranskat)abstract The ATLAS TRT barrel is a tracking drift chamber using 52,544 individual tubular drift tubes. It is one part of the ATLAS Inner Detector, which consists of three sub-systems: the pixel detector spanning the radius range 4 to 20 cm, the semiconductor tracker (SCT) from 30 to 52 cm, and the transition radiation tracker ( TRT) from 56 to 108 cm. The TRT barrel covers the central pseudo-rapidity region \|eta\| < 1, while the TRT endcaps cover the forward and backward eta regions. These TRT systems provide a combination of continuous tracking with many measurements in individual drift tubes ( or straws) and of electron identification based on transition radiation from fibers or foils interleaved between the straws themselves. This paper describes the recently-completed construction of the TRT Barrel detector, including the quality control procedures used in the fabrication of the detector.
6.	Abat, E., et al. (författare) The ATLAS TRT electronics 2008 Ingår i: Journal of Instrumentation. - 1748-0221. ; 3:6 Tidskriftsartikel (refereegranskat)abstract The ATLAS inner detector consists of three sub-systems: the pixel detector spanning the radius range 4cm-20cm, the semiconductor tracker at radii from 30 to 52 cm, and the transition radiation tracker (TRT), tracking from 56 to 107 cm. The TRT provides a combination of continuous tracking with many projective measurements based on individual drift tubes (or straws) and of electron identification based on transition radiation from fibres or foils interleaved between the straws themselves. This paper describes the on and off detector electronics for the TRT as well as the TRT portion of the data acquisition (DAQ) system.
7.	Abat, E., et al. (författare) The ATLAS TRT end-cap detectors 2008 Ingår i: Journal of Instrumentation. - 1748-0221. ; 3 Tidskriftsartikel (refereegranskat)abstract The ATLAS TRT end-cap is a tracking drift chamber using 245,760 individual tubular drift tubes. It is a part of the TRT tracker which consist of the barrel and two end-caps. The TRT end-caps cover the forward and backward pseudo-rapidity region 1.0 < vertical bar eta vertical bar < 2.0, while the TRT barrel central eta region vertical bar eta vertical bar < 1.0. The TRT system provides a combination of continuous tracking with many measurements in individual drift tubes ( or straws) and of electron identification based on transition radiation from fibers or foils interleaved between the straws themselves. Along with other two sub-systems, namely the Pixel detector and Semi Conductor Tracker (SCT), the TRT constitutes the ATLAS Inner Detector. This paper describes the recently completed and installed TRT end-cap detectors, their design, assembly, integration and the acceptance tests applied during the construction.
8.	Abbasi, R, et al. (författare) Determination of the atmospheric neutrino flux and searches for new physics with AMANDA-II 2009 Ingår i: Physical Review D. - 1550-7998 .- 1550-2368. ; 79, s. 102005- Tidskriftsartikel (refereegranskat)abstract The AMANDA-II detector, operating since 2000 in the deep ice at the geographic South Pole, has accumulated a large sample of atmospheric muon neutrinos in the 100 GeV to 10 TeV energy range. The zenith angle and energy distribution of these events can be used to search for various phenomenological signatures of quantum gravity in the neutrino sector, such as violation of Lorentz invariance or quantum decoherence. Analyzing a set of 5511 candidate neutrino events collected during 1387 days of livetime from 2000 to 2006, we find no evidence for such effects and set upper limits on violation of Lorentz invariance and quantum decoherence parameters using a maximum likelihood method. Given the absence of evidence for new flavor-changing physics, we use the same methodology to determine the conventional atmospheric muon neutrino flux above 100 GeV.
9.	Abbasi, R, et al. (författare) FIRST NEUTRINO POINT-SOURCE RESULTS FROM THE 22 STRING ICECUBE DETECTOR 2009 Ingår i: Astrophysical Journal Letters. - 2041-8205. ; 701, s. L47-L51 Tidskriftsartikel (refereegranskat)abstract We present new results of searches for neutrino point sources in the northern sky, using data recorded in 2007-2008 with 22 strings of the IceCube detector (approximately one-fourth of the planned total) and 275.7 days of live time. The final sample of 5114 neutrino candidate events agrees well with the expected background of atmospheric muon neutrinos and a small component of atmospheric muons. No evidence of a point source is found, with the most significant excess of events in the sky at 2.2 sigma after accounting for all trials. The average upper limit over the northern sky for point sources of muon-neutrinos with E-2 spectrum is E-2 Phi(v mu) < 1.4 x 10(-11) TeV cm(-2) s(-1), in the energy range from 3 TeV to 3 PeV, improving the previous best average upper limit by the AMANDA-II detector by a factor of 2.
10.	Abbasi, R, et al. (författare) Limits on a Muon Flux from Neutralino Annihilations in the Sun with the IceCube 22-String Detector 2009 Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 102:20, s. 201302- Tidskriftsartikel (refereegranskat)abstract A search for muon neutrinos from neutralino annihilations in the Sun has been performed with the IceCube 22-string neutrino detector using data collected in 104.3 days of live time in 2007. No excess over the expected atmospheric background has been observed. Upper limits have been obtained on the annihilation rate of captured neutralinos in the Sun and converted to limits on the weakly interacting massive particle (WIMP) proton cross sections for WIMP masses in the range 250-5000 GeV. These results are the most stringent limits to date on neutralino annihilation in the Sun.
11.	Abbasi, R., et al. (författare) Search for point sources of high energy neutrinos with final data from AMANDA-II 2009 Ingår i: Physical Review D. - 1550-7998 .- 1550-2368. ; 79, s. 062001- Tidskriftsartikel (refereegranskat)abstract We present a search for point sources of high energy neutrinos using 3.8 yr of data recorded by AMANDA-II during 2000-2006. After reconstructing muon tracks and applying selection criteria designed to optimally retain neutrino-induced events originating in the northern sky, we arrive at a sample of 6595 candidate events, predominantly from atmospheric neutrinos with primary energy 100 GeV to 8 TeV. Our search of this sample reveals no indications of a neutrino point source. We place the most stringent limits to date on E(-2) neutrino fluxes from points in the northern sky, with an average upper limit of E(2)Phi(nu mu)+nu(tau)<= 5.2x10(-11) TeV cm(-2) s(-1) on the sum of nu(mu) and nu(tau) fluxes, assumed equal, over the energy range from 1.9 TeV to 2.5 PeV.
12.	Abbasi, R., et al. (författare) Solar energetic particle spectrum on 2006 December 13 determined by IceTop 2008 Ingår i: Astrophysical Journal. - : American Astronomical Society. - 0004-637X .- 1538-4357. ; 689:1, s. L65-L68 Tidskriftsartikel (refereegranskat)abstract On 2006 December 13 the IceTop air shower array at the South Pole detected a major solar particle event. By numerically simulating the response of the IceTop tanks, which are thick Cerenkov detectors with multiple thresholds deployed at high altitude with no geomagnetic cutoff, we determined the particle energy spectrum in the energy range 0.6-7.6 GeV. This is the first such spectral measurement using a single instrument with a well-defined viewing direction. We compare the IceTop spectrum and its time evolution with previously published results and outline plans for improved resolution of future solar particle spectra.
13.	Abbasi, R., et al. (författare) The IceCube data acquisition system : Signal capture, digitization, and timestamping 2009 Ingår i: Nuclear Instruments and Methods in Physics Research Section A. - : Elsevier BV. - 0168-9002 .- 1872-9576. ; 601:3, s. 294-316 Tidskriftsartikel (refereegranskat)abstract IceCube is a km-scale neutrino observatory under construction at the South Pole with sensors both in the deep ice (InIce) and on the surface (IceTop). The sensors, called Digital Optical Modules (DOMs). detect, digitize and timestamp the signals from optical Cherenkov-radiation photons. The DOM Main Board (MB) data acquisition subsystem is connected to the central DAQ in the IceCube Laboratory (ICL) by a single twisted copper wire-pair and transmits packetized data on demand. Time calibration is maintained throughout the array by regular transmission to the DOMs of precisely timed analog signals, synchronized to a central GPS-disciplined clock. The design goals and consequent features, functional capabilities, and initial performance of the DOM MB, and the operation of a combined array of DOMs as a system, are described here. Experience with the first InIce strings and the IceTop stations indicates that the system design and performance goals have been achieved. (c) 2009 Elsevier B.V. All rights reserved.
14.	Achterberg, A., et al. (författare) Detection of atmospheric muon neutrinos with the IceCube 9-string detector 2007 Ingår i: Physical Review D - Particles, Fields, Gravitation and Cosmology. - 1550-7998. ; 76:2, s. 027101- Tidskriftsartikel (refereegranskat)abstract The IceCube neutrino detector is a cubic kilometer TeV to PeV neutrino detector under construction at the geographic South Pole. The dominant population of neutrinos detected in IceCube is due to meson decay in cosmic-ray air showers. These atmospheric neutrinos are relatively well understood and serve as a calibration and verification tool for the new detector. In 2006, the detector was approximately 10% completed, and we report on data acquired from the detector in this configuration. We observe an atmospheric neutrino signal consistent with expectations, demonstrating that the IceCube detector is capable of identifying neutrino events. In the first 137.4 days of live time, 234 neutrino candidates were selected with an expectation of 211 +/- 76.1(syst)+/- 14.5(stat) events from atmospheric neutrinos.
15.	Achterberg, A., et al. (författare) IceCube contributions to the XIV International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI 2006) Weihai, China - August 15-22 2008 Ingår i: Nuclear physics B, Proceedings supplements. - : Elsevier BV. - 0920-5632 .- 1873-3832. ; 175, s. 407-408 Tidskriftsartikel (refereegranskat)
16.	Achterberg, A., et al. (författare) Multiyear search for a diffuse flux of muon neutrinos with AMANDA-II 2007 Ingår i: Physical Review D - Particles, Fields, Gravitation and Cosmology. - 1550-7998. ; 76:4, s. 042008- Tidskriftsartikel (refereegranskat)abstract A search for TeV-PeV muon neutrinos from unresolved sources was performed on AMANDA-II data collected between 2000 and 2003 with an equivalent live time of 807 days. This diffuse analysis sought to find an extraterrestrial neutrino flux from sources with nonthermal components. The signal is expected to have a harder spectrum than the atmospheric muon and neutrino backgrounds. Since no excess of events was seen in the data over the expected background, an upper limit of E-2 Phi(90%C.L.)< 7.4x10(-8) GeV cm(-2) s(-1) sr(-1) is placed on the diffuse flux of muon neutrinos with a Phi proportional to E-2 spectrum in the energy range 16 TeV to 2.5 PeV. This is currently the most sensitive Phi proportional to E-2 diffuse astrophysical neutrino limit. We also set upper limits for astrophysical and prompt neutrino models, all of which have spectra different from Phi proportional to E-2.
17.	Achterberg, A., et al. (författare) The search for muon neutrinos from northern hemisphere gamma-ray bursts with AMANDA 2008 Ingår i: Astrophysical Journal. - : American Astronomical Society. - 0004-637X .- 1538-4357. ; 674:1, s. 357-370 Tidskriftsartikel (refereegranskat)abstract We present the results of the analysis of neutrino observations by the Antarctic Muon and Neutrino Detector Array (AMANDA) correlated with photon observations of more than 400 gamma-ray bursts (GRBs) in the northern hemisphere from 1997 to 2003. During this time period, AMANDA's effective collection area for muon neutrinos was larger than that of any other existing detector. After the application of various selection criteria to our data, we expect similar to 1 neutrino event and <2 background events. Based on our observations of zero events during and immediately prior to the GRBs in the data set, we set the most stringent upper limit on muon neutrino emission correlated with GRBs. Assuming a Waxman-Bahcall spectrum and incorporating all systematic uncertainties, our flux upper limit has a normalization at 1 PeV of E-2 Phi(nu) <= 6.3 x 10(-9) GeV cm(-2) s(-1) sr(-1), with 90% of the events expected within the energy range of similar to 10 TeV to similar to 3 PeV. The impact of this limit on several theoretical models of GRBs is discussed, as well as the future potential for detection of GRBs by next-generation neutrino telescopes. Finally, we briefly describe several modifications to this analysis in order to apply it to other types of transient point sources.
18.	Ackermann, M., et al. (författare) Search for ultra-high-energy neutrinos with amanda-II 2008 Ingår i: Astrophysical Journal. - 0004-637X .- 1538-4357. ; 675:2, s. 1014-1024 Tidskriftsartikel (refereegranskat)abstract A search for diffuse neutrinos with energies in excess of 10(5) GeV is conducted with AMANDA-II data recorded between 2000 and 2002. Above 10(7) GeV, the Earth is essentially opaque to neutrinos. This fact, combined with the limited overburden of the AMANDA-II detector ( roughly 1.5 km), concentrates these ultra-high-energy neutrinos at the horizon. The primary background for this analysis is bundles of downgoing, high-energy muons from the interaction of cosmic rays in the atmosphere. No statistically significant excess above the expected background is seen in the data, and an upper limit is set on the diffuse all-flavor neutrino flux of E-2 Phi(90%CL) < 2.7x10(-7) GeV cm(-2) s(-1) sr(-1) valid over the energy range of 2x10(5) to 10(9) GeV. A number of models that predict neutrino fluxes from active galactic nuclei are excluded at the 90% confidence level.
19.	Cwetanski, P, et al. (författare) Acceptance tests and criteria of the ATLAS transition radiation tracker 2005 Ingår i: IEEE Transactions on Nuclear Science. - 0018-9499. ; 52:6, s. 2911-2916 Tidskriftsartikel (refereegranskat)abstract The Transition Radiation Tracker (TRT) sits at the outermost part of the ATLAS Inner Detector, encasing the Pixel Detector and the Semi-Conductor Tracker (SCT). The TRT combines charged particle track reconstruction with electron identification capability. This is achieved by layers of xenonfilled straw tubes with periodic radiator foils or fibers providing TR photon emission. The design and choice of materials have been optimized to cope with the harsh operating conditions at the LHC, which are expected to lead to an accumulated radiation dose of 10 Mrad and a neutron fluence of up to 2 . 10(14) n/cm(2) after ten years of operation. The TRT comprises a barrel containing 52 000 axial straws and two end-cap parts with 320 000 radial straws. The total of 420 000 electronic channels (two channels per barrel straw) allows continuous tracking with many projective measurements (more than 30 straw hits per track). The assembly of the barrel modules in the US has recently been completed, while the end-cap wheel construction in Russia has reached the 50% mark. After testing at the production sites and shipment to CERN, all modules and wheels undergo a series of quality and conformity measurements. These acceptance tests survey dimensions, wire tension, gas-tightness, high-voltage stability and gas-gain uniformity along each individual straw. This paper gives details on the acceptance criteria and measurement methods. An overview of the most important results obtained to-date is also given.
20.	Klareskog, L, et al. (författare) A new model for an etiology of RA; Smoking may trigger HLA-DR (SE)-restricted immune reactions to autoantigens modified by citruillination 2005 Ingår i: ANNALS OF THE RHEUMATIC DISEASES. - 0003-4967. ; 64, s. 165- Konferensbidrag (övrigt vetenskapligt/konstnärligt)
21.	Lundberg, R, et al. (författare) Human herpes virus DNA is rarely detected in non-UV light-associated primary malignant melanomas of mucous membranes 2006 Ingår i: Anticancer research. - 0250-7005. ; 26:5B, s. 3627-3631 Tidskriftsartikel (refereegranskat)
22.	Mahdi, H, et al. (författare) Specific interaction between genotype, smoking and autoimmunity to citrullinated alpha-enolase in the etiology of rheumatoid arthritis 2009 Ingår i: Nature Genetics. - : Springer Science and Business Media LLC. - 1061-4036 .- 1546-1718. ; 41:12, s. 1319-1324 Tidskriftsartikel (refereegranskat)abstract Gene-environment associations are important in rheumatoid arthritis (RA) susceptibility, with an association existing between smoking, HLA- DRB1 'shared epitope' alleles, PTPN22 and antibodies to cyclic citrullinated peptides (CCP). Here, we test the hypothesis that a subset of the anti-CCP response, with specific autoimmunity to citrullinated alpha-enolase, accounts for an important portion of these associations. In 1,497 individuals from three RA cohorts, antibodies to the immunodominant citrullinated alpha-enolase CEP-1 epitope were detected in 43-63% of the anti-CCP-positive individuals, and this subset was preferentially linked to HLA-DRB1*04. In a case-control analysis of 1,000 affected individuals and 872 controls, the combined effect of shared epitope, PTPN22 and smoking showed the strongest association with the anti-CEP-1-positive subset (odds ratio (OR) of 37, compared to an OR of 2 for the corresponding anti-CEP-1-negative, anti-CCP-positive subset). We conclude that citrullinated alpha-enolase is a specific citrullinated autoantigen that links smoking to genetic risk factors in the development of RA.
23.	Persson, A., et al. (författare) Effects of enrichment on simple aquatic food webs 2001 Ingår i: Am. Nat. 157:654-669. Tidskriftsartikel (refereegranskat)
24.	Prokunina, L, et al. (författare) The PD-1 gene is associated with nephritis in human systemic lupus erythematosus 2000 Ingår i: ARTHRITIS AND RHEUMATISM. - 0004-3591. ; 43, s. 2858- Konferensbidrag (övrigt vetenskapligt/konstnärligt)
25.	Stolt, P, et al. (författare) Silica exposure is associated with increased risk of a restricted sub-group of 2006 Ingår i: ANNALS OF THE RHEUMATIC DISEASES. - 0003-4967. ; 65, s. 131-131 Konferensbidrag (övrigt vetenskapligt/konstnärligt)
26.	Stolt, P, et al. (författare) Silica exposure is associated with increased risk of a restricted sub-group of rheumatoid arthritis linked to antibodies to cyclic citrullinated peptides. 2005 Ingår i: ARTHRITIS AND RHEUMATISM. - 0004-3591. ; 52:9, s. S404-S404 Konferensbidrag (övrigt vetenskapligt/konstnärligt)
27.	Sverdrup, B, et al. (författare) Association between mineral oil exposure and Rheumatoid Arthritis. 2005 Ingår i: ARTHRITIS AND RHEUMATISM. - 0004-3591. ; 52:9, s. S152-S152 Konferensbidrag (övrigt vetenskapligt/konstnärligt)
28.	Sverdrup, B, et al. (författare) Association between occupational exposure to mineral oil and rheumatoid arthritis: results from the Swedish EIRA case-control study 2005 Ingår i: Arthritis research & therapy. - : Springer Science and Business Media LLC. - 1478-6362 .- 1478-6354. ; 7:6, s. R1296-R1303 Tidskriftsartikel (refereegranskat)
29.	Åkesson, Torsten, et al. (författare) ATLAS Transition Radiation Tracker test-beam results 2004 Ingår i: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. - : Elsevier BV. - 0168-9002. ; 522:1-2, s. 50-55 Konferensbidrag (refereegranskat)abstract Several prototypes of the Transition Radiation Tracker for the ATLAS experiment at the LHC have been built and tested at the CERN SPS accelerator. Results from detailed studies of the straw-tube hit registration efficiency and drift-time measurements and of the pion and electron spectra without and with radiators are presented.
30.	Åkesson, Torsten, et al. (författare) Status of design and construction of the Transition Radiation Tracker (TRT) for the ATLAS experiment at the LHC 2004 Ingår i: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. - : Elsevier BV. - 0167-5087 .- 0168-9002. ; 522:1-2, s. 131-145 Tidskriftsartikel (refereegranskat)abstract The ATLAS Inner Detector consists of three sub-systems, the Pixel Detector at the innermost radius, the Semi-Conductor Tracker at intermediate radii, and the Transition Radiation Tracker (TRT) at the outermost radius in front of the electromagnetic calorimeter. The TRT provides a combination of continuous tracking with many projective measurements based on individual drift-tubes (or straws) and of electron identification based on radiator fibres or foils interleaved between the straws themselves. This paper describes the current status of design and construction of the various components of the TRT: the assembly of the barrel modules has recently been completed, that of the end-cap wheels is well underway, and the on-detector front-end electronics is in production. The detector modules and front-end electronics boards will be integrated together over the next year, the barrel and end-cap TRT parts will be assembled and tested with their SCT counterparts during 2005 and installation and commissioning in the ATLAS pit will take place at the end of 2005 and the beginning of 2006. (C) 2004 Elsevier B.V. All rights reserved.
31.	Ahrens, J., et al. (författare) Results from AMANDA 2001 Ingår i: Proceedings, 9th International Workshop, Venice, Italy, March 6-9, 2001. Vol. 1, 2. ; , s. 569-580 Konferensbidrag (refereegranskat)
32.	Bengtsson, C, et al. (författare) Socioeconomic status and the risk of developing rheumatoid arthritis: results from the Swedish EIRA study 2005 Ingår i: Annals of the rheumatic diseases. - : BMJ. - 0003-4967. ; 52:9, s. S152-S152 Tidskriftsartikel (refereegranskat)
33.	Bjornadal, L, et al. (författare) Increased cancer incidence in a Swedish cohort of patients with systemic lupus erythematosus 2002 Ingår i: Scandinavian journal of rheumatology. - : Informa UK Limited. - 0300-9742 .- 1502-7732. ; 31:2, s. 66-71 Tidskriftsartikel (refereegranskat)
34.	Bremer, B., et al. (författare) An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II 2003 Ingår i: Botanical Journal of the Linnean Society. - : Oxford University Press (OUP). - 0024-4074 .- 1095-8339. ; 141, s. 399-436 Tidskriftsartikel (refereegranskat)
35.	Fridell, K, et al. (författare) The impact of PACS on radiologists' work practice 2007 Ingår i: Journal of digital imaging. - : Springer Science and Business Media LLC. - 0897-1889 .- 1618-727X. ; 20:4, s. 411-421 Tidskriftsartikel (refereegranskat)
36.	Ge, Hongya, et al. (författare) Reduced-rank multiuser detectors based on vector and matrix conjugate gradient Wiener filters 2004 Ingår i: 2004 IEEE 5th Workshop on Signal Processing Advances in Wireless Communications. - Piscataway, NJ : IEEE Communications Society. - 0780383370 ; , s. 189-193 Konferensbidrag (refereegranskat)abstract Using the notion of expanding subspace and the framework of reduced-rank signal processing, we present our latest discovery on applying the vector and matrix conjugate gradient (CG) methods to design reduced-rank linear MMSE multiuser detectors (MUD) for code division multiple access (CDMA) systems. We show that for a synchronous CDMA system with K users, each using a distinct length N spreading code, the vector CG method converges to the full-rank linear MUD in at most K steps (K≤N).The matrix CG method converges to the full-rank linear MUD in one step. Furthermore, when the Gold codes are used as spreading codes in combination with a groupwise power control scheme, early convergence in the vector CG Wiener filter can be reached in just L steps (L≪K≤N), typically L=2∼4 independent of the user number K and the spreading length N.
37.	Hahn-Zoric, M, et al. (författare) Evidence for genetic regulation of Fc alpha receptor (CD89) expression: Study of soluble CD89 in plasma of IgA nephropathy patients and healthy controls 2008 Ingår i: CLINICAL IMMUNOLOGY. - : Elsevier BV. - 1521-6616. ; 127, s. S151-S151 Konferensbidrag (övrigt vetenskapligt/konstnärligt)
38.	Hassan, AB, et al. (författare) Association of the proinflammatory haplotype (MICA5.1/TNF2/TNFa2/DRB103) with polymyositis and dermatomyositis 2004 Ingår i:* Arthritis and rheumatism. - : Wiley. - 0004-3591 .- 1529-0131. ; 50:3, s. 1013-1015 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
39.	Hassan, AB, et al. (författare) MICA4/HLA-DRB104/TNF1 haplotype is associated with mixed connective tissue disease in Swedish patients 2003 Ingår i:* Human immunology. - : Elsevier BV. - 0198-8859. ; 64:2, s. 290-296 Tidskriftsartikel (refereegranskat)
40.	Hellstrom, L, et al. (författare) Cadmium exposure and end-stage renal disease 2001 Ingår i: American journal of kidney diseases : the official journal of the National Kidney Foundation. - : Elsevier BV. - 1523-6838. ; 38:5, s. 1001-1008 Tidskriftsartikel (refereegranskat)
41.	Hellström, L, et al. (författare) Cadmium exposure and end-stage renal disease 2001 Ingår i: American Journal of Kidney Diseases. - 0272-6386 .- 1523-6838. ; 38:5, s. 1001-1008 Tidskriftsartikel (refereegranskat)abstract Environmental exposure to cadmium may cause kidney damage and tubular proteinuria. We investigated the relationship between low-level cadmium exposure and end-stage renal disease (ESRD), indicated by renal replacement therapy (RRT), in a Swedish population environmentally or occupationally exposed to cadmium. Based on records of all persons in the population previously or presently employed in cadmium-battery production or residing in cadmium-polluted areas near the battery plants, we defined exposure as high (occupational), moderate (domicile < 2 km from a plant), low (domicile 2 to 10 km from a plant), or no exposure (domicile > 10 km from a plant). Comprehensive data were available for all individuals undergoing RRT since 1978. The annual incidence of RRT increased from 41 per million in the age group 20 to 29 years to 243 per million in the age group 70 to 79 years and was greater in a priori-defined populations with cadmium exposure. Adjusting for age and sex gave an increased Mantel-Haenszel rate ratio (MH-RR) of 1.8 (95% confidence interval [CI], 1.3 to 2.3) for RRT in the cadmium-exposed population compared with the unexposed group, the MH-RR was even higher for women (MH-RR, 2.3, 95% CI, 1.5 to 3.5). Directly age-standardized rate ratios for RRT and cadmium exposure increased from 1.4 (95% CI, 0.8 to 2.0) in the low-exposure group to 1.9 (95% CI, 1.3 to 2.5) and 2.3 (95% CI, 0.6 to 6.0) in the moderate- and high-exposure groups, respectively. We conclude that exposure to occupational or relatively low environmental levels of cadmium appears to be a determinant for the development of ESRD. ⌐ 2001 by the National Kidney Foundation, Inc.
42.	Johansson, Anders, et al. (författare) Wound infiltration with ropivacaine and fentanyl: Effects on postoperative pain and PONV after breast surgery 2003 Ingår i: Journal of Clinical Anesthesia. - 1873-4529. ; 15:2, s. 113-118 Tidskriftsartikel (refereegranskat)abstract Study Objective: To determine whether Postoperative wound infiltration with local anesthetics combined with fentanyl improves analgesia following breast surgery; and to investigate awakening and Postoperative nausea/vomiting. Design: Prospectively randomized clinical study. Setting: University hospital. Patients: 45 ASA physical status I and II patients scheduled for breast surgery. Interventions: Patients were prospectively randomized and assigned to one of three treatments during general anesthesia: postsurgical wound infiltration with ropivacaine 0.375%; wound infiltration with ropivacaine 0.375% combined with fentanyl 0.5 mug/kg; and intravenous (IV) fentanyl 0.5 mug/kg before skin incision and no wound infiltration. Time to first verbal response, Pain at rest, Postoperative nausea and vomiting, and ketobemidone and dixyrazine utilization were compared. Measurements and Main Results: Time to first verbal response was significantly shorter in the IV fentanyl group compared to both infiltration groups (8.1 +/- 4.5 min vs. 15.3 +/- 4.3, and 12.0 +/- 5.0 min; p < 0.05, respectively). Postoperative Pain at rest, and nausea and vomiting occurred with similar frequencies in the groups. Ketobemidone utilization in both infiltration groups, (2.4 +/- 1.8 mg and 3.1 +/- 1.8 mg, respectively) was not different compared to the IV fentanyl group (2.9 +/- 2.0 mg; NS). There were no differences in Postoperative antiemetic requirements during the first, second and third two-hour periods postoperatively. The dixyrazine consumption was similar in the three groups, (0.9 +/- 1.5 mg, 0.8 +/- 1.3 mg, and 1.4 +/- 1.8 mg, respectively; NS). Conclusion: Postsurgical ropivacaine wound infiltration, with or without adding fentanyl, demonstrates no differences in postoperative Pain relief and nausea/vomiting compared to a balanced general anesthetic including IV fentanyl. (C) 2003 by Elsevier Science Inc.
43.	Johansson, Sveneric, et al. (författare) The FERRUM Project: New f-value Data for Fe II and Astrophysical Applications 2002 Ingår i: Physica Scripta. - : Institute of Physics Publishing (IOPP). - 0281-1847 .- 0031-8949 .- 1402-4896. ; T100, s. 71-80 Konferensbidrag (refereegranskat)abstract We present the FERRUM Project, an international collaboration aiming at a production and evaluation of oscillator strengths (transition probabilities) of selected spectral lines of singly ionized iron group elements, that are of astrophysical relevance. The results obtained include measurements and calculations of permitted and forbidden lines of Fe II. The data have been applied to both emission and absorption lines in astrophysical spectra. We make comparisons between experimental, theoretical and astrophysical f-values. We give a general review of the various measurements, and discuss the UV8 multiplet of Fe II around 1610 Šin detail.
44.	Kallberg, HJ, et al. (författare) Physical workload and the risk of developing rheumatoid arthritis. Results from the Swedish EIRA study 2006 Ingår i: ANNALS OF THE RHEUMATIC DISEASES. - 0003-4967. ; 65, s. 132-132 Konferensbidrag (övrigt vetenskapligt/konstnärligt)
45.	Lundberg, K, et al. (författare) Reactivity of RA sera with citrullinated alpha-enolase peptides: Development of a new diagnostic ELISA 2006 Ingår i: RHEUMATOLOGY. - 1462-0324. ; 45, s. I17-I17 Konferensbidrag (övrigt vetenskapligt/konstnärligt)
46.	Magnusson, V, et al. (författare) Fine mapping of the SLEB2 locus involved in susceptibility to systemic lupus erythematosus 2000 Ingår i: Genomics. - : Elsevier BV. - 0888-7543. ; 70, s. 307- Tidskriftsartikel (refereegranskat)
47.	Persson, Anders, et al. (författare) Effects of enrichment on simple aquatic food webs 2001 Ingår i: American Naturalist. - : University of Chicago Press. - 0003-0147 .- 1537-5323. ; 157:6, s. 654-669 Tidskriftsartikel (refereegranskat)abstract Simple models, based on Lotka-Volterra types of interactions between predator and prey, predict that enrichment will have a destabilizing effect on populations and that equilibrium population densities will change at the top trophic level and every second level below. We experimentally tested these predictions in three aquatic food web configurations subjected to either high or low nutrient additions. The results were structured by viewing the systems as either food chains or webs and showed that trophic level biomass increased with enrichment, which contradicts food chain theory. However, within each trophic level, food web configuration affected the extent to which different functional groups responded to enrichment. By dividing trophic levels into functional groups, based on vulnerability to consumption, we were able to identify significant effects that were obscured when systems were viewed as food chains. The results support the prediction that invulnerable prey may stabilize trophic-level dynamics by replacing other, more vulnerable prey. Furthermore, the vulnerable prey, such as Daphnia and edible algae, responded as predicted by the paradox of enrichment hypothesis; that is, variability in population density increased with enrichment. Hence, by describing ecosystems as a matrix of food web interactions, and by recognizing the interplay between interspecific competition and predation, a more complete description of the ecosystem function was obtained compared to when species were placed into distinct trophic levels.
48.	Snir, O., et al. (författare) Multiple antibody reactivities to citrullinated antigens in sera from patients with rheumatoid arthritis : association with HLA-DRB1 alleles 2009 Ingår i: Annals of the Rheumatic Diseases. - : BMJ. - 0003-4967 .- 1468-2060. ; 68:5, s. 736-743 Tidskriftsartikel (refereegranskat)abstract Background: Autoantibodies to cyclic citrullinated peptides (anti-CCP) are present in most patients with rheumatoid arthritis ( RA), and associate with HLA-DRB1 shared epitope (SE) alleles. Objective: To investigate reactivities of anti-CCP to various citrullinated proteins/peptides, which represent potential autoantigens in RA, and to examine the relationship between such antibodies, and their association with genetic variants within HLA-DRB1 SE alleles. Methods: Serum samples from 291 patients with established RA and 100 sex- and age-matched healthy subjects were included in this study. Sera were first analysed for presence of anti-CCP antibodies and further for IgG and IgA antibodies towards candidate autoantigens in both their native and citrullinated form including: fibrinogen, alpha-enolase peptide-1 and the C1-epitope of type II collagen (C1(III)). Antibody specificity was confirmed by cross-reactivity tests. HLA-DR genotyping was performed. Results: 72% of patients with RA were anti-CCP positive. Among the candidate autoantigens examined, IgG antibodies to citrullinated fibrinogen were found in 66% of patients' sera and in 41% for both citrullinated alpha-enolase peptide-1 and citrullinated C1(III). These antibodies were mainly seen in the anti-CCP-positive patient group; they were specific for their respective antigen and displayed limited cross reactivity. IgA responses were also detected, but less frequently than IgG. Anti-CCP and anti-citrullinated protein antibodies were associated with HLA-DRB104 rather than with HLA-DRB101 alleles. Conclusions: Antibodies directed against several citrullinated antigens are present in CCP-positive RA, with many patients displaying multireactivity. All specific reactivities were primarily associated with the HLA-DRB1*04 alleles, suggesting common pathways of anti-citrulline immunity.
49.	Stegmayr, Bernd, et al. (författare) Minimized weight gain between hemodialysis contributes to a reduced risk of death 2006 Ingår i: International Journal of Artificial Organs. - 0391-3988 .- 1724-6040. ; 29:7, s. 675-680 Tidskriftsartikel (refereegranskat)
50.	Stolt, P, et al. (författare) Quantification of the influence of cigarette smoking on rheumatoid arthritis: results from a population based case-control study, using incident cases 2003 Ingår i: Annals of the rheumatic diseases. - : BMJ. - 0003-4967. ; 62:9, s. 835-841 Tidskriftsartikel (refereegranskat)

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