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Sökning: WAKA:ref > Tidskriftsartikel > (2002)

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Numrering	Referens	Omslagsbild	Hitta
1.	A, Lebedev, et al. (författare) Direct photons in WA98. 2002 Ingår i: Nuclear Physics A. ; 698, s. 135-135 Tidskriftsartikel (refereegranskat)
2.	A wide-band RF front-end for multiband multistandard high-linearity low-IF wireless receivers 2002 Ingår i: IEEE Journal of Solid-State Circuits. - 0018-9200 .- 1558-173X. ; 37:9, s. 1162-1168 Tidskriftsartikel (refereegranskat)abstract A wide-band radio-frequency (RF) front-end is designed with a balanced combined low-noise amplifier and a switching mixer (a low-noise converter) in RF Si-bipolar process with an f(T) of 25 GHz. The circuit achieves 20-dB conversion gain, higher than -4.5-dBm RF-to-IF IIP3 (+15.5-dBm OIP3) and less than 3.8-dB double-side-band noise figure in 900-MHz (e.g., GSM) and 1.9-GHz (e.g., WCDMA) frequency bands. The -1-dB compression point is -20 dBm at 13-mA dc current consumption from a single 5-V supply. The local-oscillator leakage to the input is less than -56 dBm in the 900-MHz band and less than -63 dBm in the 1.9-GHz band. The -3-dB bandwidth of the amplifier is larger than 3 GHz and a wide-band matching at the input with - 10 to -41-dB S-11 is achieved in the frequency bands of interest by applying a dual-loop wide-band active feedback. The die area is 0.69 x 0.9 mm(2). The circuit is suitable for area-efficient multiband multistandard low-IF receivers.
3.	Aabenhus, Rune, et al. (författare) Lectin Typing of Campylobacter concisus 2002 Ingår i: Journal of Clinical Microbiology. - 1098-660X. ; 40:2, s. 715-717 Tidskriftsartikel (refereegranskat)abstract A total of 44 clinical isolates and the type strain of the putative pathogen Campylobacter concisus were grouped based on their reactions with plant lectins. The optimized lectin typing system used C. concisus strains proteolytically pretreated and subsequently typed by using a panel of four lectins. The system grouped all 45 strains into 13 lectin reaction patterns, leaving no strain untypeable due to autoagglutination. Lectin types were both stable and reproducible.
4.	Aaberge, Rolf, et al. (författare) Income Inequality and Income Mobility in the Scandinavian Countries Compared to the United States 2002 Ingår i: The Review of Income and Wealth. - : Blackwell Publishers Ltd. - 1475-4991 .- 0034-6586. ; 48:4, s. 443-469 Tidskriftsartikel (refereegranskat)abstract This paper compares income inequality and income mobility in the Scandinavian countries and the United States during 1980-90. The results suggest that inequality is greater in the United States than in the Scandinavian countries and that this inequality ranking of countries remains unchanged when the accounting period of income is extended from one to eleven years. The pattern of mobility turns out to be remarkably similar, in the sense that the proportionate reduction in inequality from extending the accounting period of income is much the same. But we do find evidence of greater dispersion of first differences of relative earnings and income in the United States. Relative income changes are associated with changes in labor market and marital status in all four countries, but the magnitude of such changes are largest in the United States.
5.	Aalto, Kristiina, et al. (författare) Nerve growth factor in serum of children with systemic lupus erythematosus is correlated with disease activity 2002 Ingår i: Cytokine. ; 20, s. 136- Tidskriftsartikel (refereegranskat)
6.	Aalto, K, et al. (författare) Nerve growth factor in serum of children with systemic lupus erythematosus is correlated with disease activity 2002 Ingår i: Cytokine. - : ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD. - 1043-4666 .- 1096-0023. ; 20:3, s. 136-139 Tidskriftsartikel (refereegranskat)abstract Nerve growth factor (NGF) is a neurotrophic factor, which is expressed both in the nervous system and in peripheral organs. NGF is also present in mast cells, and in B- and T-lymphocytes, and may play a role in the immune cell development and differentiation. Various cytokines have been shown to affect NGF expression, and NGF is elevated in inflammation and in some autoimmune diseases. Here we have studied NGF concentrations in serum of pediatric patients with systemic lupus erythematosus (SLE) using a two-site enzyme-linked immunosorbent assay (ELISA). We have further correlated the levels of NGF to the inflammatory state of the disease. The mean value of serum NGF in SLE patients was significantly increased compared with controls (3346 vs 627 pg/ml). There was a correlation between the activity of SLE and the levels of NGF. The results show that NGF is elevated in childhood SLE and that the levels are correlated with disease activity. The present results suggest that NGF may play a role in the pathogenesis of SLE and may have a prognostic value in evaluating the course of the disease and in outlining the medication. (C) 2002 Elsevier Science Ltd. All rights reserved.
7.	Aalto, S, et al. (författare) Ketamine does not decrease striatal dopamine D2 receptor binding in man 2002 Ingår i: Psychopharmacology. - : Springer Science and Business Media LLC. - 0033-3158 .- 1432-2072. ; 164:4, s. 401-406 Tidskriftsartikel (refereegranskat)
8.	Aaltonen, J., et al. (författare) Direct current (DC) resistivity measurements in long-term groundwater monitoring programmes 2002 Ingår i: Environmental Geology. - : Springer Science and Business Media LLC. - 0943-0105 .- 1432-0495. ; 41:6, s. 662-671 Tidskriftsartikel (refereegranskat)
9.	Aanaes, H, et al. (författare) Robust factorization 2002 Ingår i: IEEE Transactions on Pattern Analysis and Machine Intelligence. - 1939-3539. ; 24:9, s. 1215-1225 Tidskriftsartikel (refereegranskat)abstract Factorization algorithms for recovering structure and motion from an image stream have many advantages, but they usually require a set of well-tracked features. Such a set is in generally not available in practical applications. There is thus a need for making factorization algorithms deal effectively with errors in the tracked features. We propose a new and computationally efficient algorithm for applying an arbitrary errorfunction in the factorization scheme. This algorithm enables the use of robust statistical techniques and arbitrary noise models for the individual features. These techniques and models enable the factorization scheme to deal effectively with mismatched features, missing features, and noise on the individual features. The proposed approach further includes a new method for Euclidean reconstruction that significantly improves convergence of the factorization algorithms. The proposed algorithm has been implemented as a modification of the Christy-Horaud factorization scheme, which yields a perspective reconstruction. Based on this implementation, a considerable increase in error tolerance is demonstrated on real and synthetic data. The proposed scheme can, however, be applied to most other factorization algorithms.
10.	Aanes R, Sæther B-E, Smith FM, Cooper EJ, Wookey PA, Øritsland NA (författare) The Arctic Oscillation predicts effects of climate change in two trophic levels in a high-arctic ecosystem 2002 Ingår i: Ecology Letters. - : Blackwell. - 1461-023X. ; 5, s. 445-453 Tidskriftsartikel (refereegranskat)abstract During recent decades there has been a change in the circulation of atmospheric pressure throughout the Northern Hemisphere. These variations are expressed in the recently described Arctic Oscillation (AO), which has shown an upward trend (associated with

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Typ av publikation: tidskriftsartikel (14762)Ta bort avgränsningen; konstnärligt arbete (2)

Typ av innehåll: refereegranskat (14762)

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År: 2002 (14762)Ta bort avgränsningen

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