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- Aggarwal, M. M., et al.
(författare)
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Event-by-event charged-neutral fluctuations in Pb plus Pb collisions at 158 A GeV
- 2011
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Ingår i: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics. - : Elsevier BV. - 0370-2693. ; 701:3, s. 300-305
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Tidskriftsartikel (refereegranskat)abstract
- Charged particles and photons have been measured in central Pb + Pb collisions at 158 A GeV in a common (eta-phi)-phase space region in the WA98 experiment at the CERN SPS. The measured distributions have been analyzed to quantify the frequency with which phase space regions of varying sizes have either small or large neutral pion fraction. The measured results are compared with VENUS model simulated events and with mixed events. Events with both large and small charged-neutral fluctuations are observed to occur more frequently than expected statistically, as deduced from mixed events, or as predicted by model simulations, with the difference becoming more prominent with decreasing size of the A Delta eta-Delta phi region. (C) 2011 Elsevier B.V. All rights reserved.
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| 2. |
- Aggarwal, M. M., et al.
(författare)
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Photon and eta production in p plus Pb and p plus C collisions at root(NN)-N-S=17.4 GeV
- 2013
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Ingår i: Nuclear Physics, Section A. - : Elsevier BV. - 0375-9474. ; 898, s. 14-23
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Tidskriftsartikel (refereegranskat)abstract
- Measurements of direct photon production in p + Pb and p + C collisions at root(NN)-N-s = 17.4 GeV are presented. Upper limits on the direct photon yield as a function of p(T) are derived and compared to the results for Pb + Pb collisions at root(NN)-N-s = 17.3 GeV. The production of the eta meson, which is an important input to the direct photon signal extraction, has been determined in the eta -> 2 gamma channel for p + C collisions at root(NN)-N-s = 17.4 GeV. (c) 2012 Elsevier B.V. All rights reserved.
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| 4. |
- Almståhl, Annica, 1973, et al.
(författare)
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A prospective study on oral microbial flora and related variables in dentate dependent elderly residents.
- 2012
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Ingår i: Gerodontology. - : Wiley. - 1741-2358 .- 0734-0664. ; 29:2
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Tidskriftsartikel (refereegranskat)abstract
- Gerodontology 2011; doi: 10.1111/j.1741-2358.2011.00599.x A prospective study on oral microbial flora and related variables in dentate dependent elderly residents Objective: Oral microorganisms and related variables were followed over a 1-year period in dentate dependent elderly. Background: For nursing personnel, oral hygiene for the dependent elderly is demanding. It requires good knowledge of how to carry out preventive oral health measures and to judge when help is needed. Previous studies indicate low levels of knowledge, which might be reflected in the oral health of dentate residents. Material and methods: Twenty-one subjects participated at baseline and 14 one year later. Microbial samples were analysed using cultivation technique. The labial minor gland secretion rate was measured using the Periotron(®) method, and oral clinical data were registered. Results: Low labial mucosal flow rates were seen for 95% of the participants. At baseline, visibly thick plaque was seen in 48% and 1year later in 57%. Both frequency and number of bacteria associated with caries and frequency of microorganisms associated with oral soft tissue infections were high. One year later, a decrease in bacteria associated with good oral health and a tendency to an increase in aciduric microorganisms were seen. Conclusion: Poor oral health, tending to further deteriorate over time, advocates regular professional supplementary support when elderly dentate dependent residents need assistance with their oral care.
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