| 1. |
- Jimenez, J. L., et al.
(author)
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Evolution of Organic Aerosols in the Atmosphere
- 2009
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In: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 326:5959, s. 1525-1529
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Journal article (peer-reviewed)abstract
- Organic aerosol (OA) particles affect climate forcing and human health, but their sources and evolution remain poorly characterized. We present a unifying model framework describing the atmospheric evolution of OA that is constrained by high-time-resolution measurements of its composition, volatility, and oxidation state. OA and OA precursor gases evolve by becoming increasingly oxidized, less volatile, and more hygroscopic, leading to the formation of oxygenated organic aerosol (OOA), with concentrations comparable to those of sulfate aerosol throughout the Northern Hemisphere. Our model framework captures the dynamic aging behavior observed in both the atmosphere and laboratory: It can serve as a basis for improving parameterizations in regional and global models.
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| 2. |
- Falconer, D., et al.
(author)
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New Air-interface Technologies and Deployment Concepts
- 2006
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In: Technologies for the Wireless Future: Wireless World Research Forum (WWRF). - Chichester, UK : John Wiley & Sons. - 0470029056 - 9780470029053 ; , s. 131-226
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Book chapter (other academic/artistic)
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| 3. |
- Vilkuna-Rautiainen, T, et al.
(author)
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Serum antibody response to periodontal pathogens and herpes simplex virus in relation to classic risk factors of cardiovascular disease.
- 2006
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In: International Journal of Epidemiology. - : Oxford University Press (OUP). - 0300-5771 .- 1464-3685. ; 35:6, s. 1486-1494
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Journal article (peer-reviewed)abstract
- BACKGROUND: Increasing evidence links chronic infections, especially burden of several infections, with increased risk for cardiovascular diseases (CVD). We studied joint immune response against two major periodontal pathogens and herpes simplex virus (HSV) in relation to established risk factors of CVD. METHODS: Serum antibody levels to HSV, Actinobacillus actinomycetemcomitans and Porphyromonas gingivalis were determined by ELISA. The study included 1107 subjects, 734 from Finland and 373 from Russia. RESULTS: Combined antibody response to periodontal pathogens was associated inversely (OR, 95% CI) with high-density lipoprotein (HDL) cholesterol concentration (beta = 0.35; 0.20, 0.60; P < 0.001) and directly with HSV antibody quartiles: compared with the first quartile, ORs (95% CI) for quartiles 2-4 were 1.43 (0.88-2.32), 1.74 (1.07-2.82), and 1.89 (1.18-3.02), respectively (P for trend <0.001), after adjusting for age, gender, area, education, smoking, BMI, alcohol, triglycerides, and number of teeth. In linear regression analysis, the 3-pathogen antibody score (comprising antibody levels against periodontal pathogens and HSV) was inversely associated with HDL cholesterol concentration (beta = -0.067/1 mmol/l; -0.235, -0.018; P < 0.05). CONCLUSIONS: HSV infection may promote infection by periodontal pathogens. Furthermore, the infectious burden comprising HSV and periodontitis may increase the risk for CVD by clearly decreasing HDL cholesterol concentrations.
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| 4. |
- Oittinen, J, et al.
(author)
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Periodontal disease and bacterial vaginosis increase the risk for adverse pregnancy outcome.
- 2005
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In: Infectious diseases in obstetrics and gynecology. - 1064-7449 .- 1098-0997. ; 13:4, s. 213-216
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Journal article (peer-reviewed)abstract
- OBJECTIVES: To determine whether periodontal disease or bacterial vaginosis (BV) diagnosed before pregnancy increase the risk for adverse pregnancy outcome. METHODS: We enrolled a total of 252 women who had discontinued contraception in order to become pregnant. The first 130 pregnant women were included in the analyses. RESULTS: Multivariate analysis showed a strong association between periodontal disease and adverse pregnancy outcome (OR 5.5, 95% confidence interval 1.4-21.2; p = 0.014), and a borderline association between BV and adverse pregnancy outcome (OR 3.2, 95% confidence interval 0.9-10.7; p = 0.061). CONCLUSION: Our study suggests that pre-pregnancy counseling should include both oral and vaginal examinations to rule out periodontal disease and BV. This may ultimately have an impact on antenatal healthcare, and decrease the risk for adverse pregnancy outcome.
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| 5. |
- El-Sallabi, H., et al.
(author)
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Wideband spatial channel model for MIMO systems at 5 GHz in indoor and outdoor environments
- 2006
-
In: IEEE Vehicular Technology Conference. ; , s. 2916-2921
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Conference paper (peer-reviewed)abstract
- This work presents a spatial channel model developed within the EC WINNER1 project. The channel model is mainly based on double-directional measurement campaigns carried out in the 5 GHz ISM 2 band with bandwidths of up to 120 MHz. The model is based on a unified structure for indoor and outdoor environment. It covers 6 different propagation scenarios, namely indoor small office, indoor hall, urban microcell, urban macrocell, suburban macrocell, and rural environment. Both line-of-sight (LOS) and non-line-of-sight (NLOS) propagation conditions are modeled.
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