Search Results - (Author, Cooperation:C. Fransson)
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1Latest Papers from Table of Contents or Articles in PressJ. Larsson ; C. Fransson ; G. Ostlin ; P. Groningsson ; A. Jerkstrand ; C. Kozma ; J. Sollerman ; P. Challis ; R. P. Kirshner ; R. A. Chevalier ; K. Heng ; R. McCray ; N. B. Suntzeff ; P. Bouchet ; A. Crotts ; J. Danziger ; E. Dwek ; K. France ; P. M. Garnavich ; S. S. Lawrence ; B. Leibundgut ; P. Lundqvist ; N. Panagia ; C. S. Pun ; N. Smith ; G. Sonneborn ; L. Wang ; J. C. Wheeler
Nature Publishing Group (NPG)
Published 2011Staff ViewPublication Date: 2011-06-10Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
2Latest Papers from Table of Contents or Articles in PressMattila, S., Perez-Torres, M., Efstathiou, A., Mimica, P., Fraser, M., Kankare, E., Alberdi, A., Aloy, M. A., Heikkilä, T., Jonker, P. G., Lundqvist, P., Marti-Vidal, I., Meikle, W. P. S., Romero-Canizales, C., Smartt, S. J., Tsygankov, S., Varenius, E., Alonso-Herrero, A., Bondi, M., Fransson, C., Herrero-Illana, R., Kangas, T., Kotak, R., Ramirez-Olivencia, N., Väisänen, P., Beswick, R. J., Clements, D. L., Greimel, R., Harmanen, J., Kotilainen, J., Nandra, K., Reynolds, T., Ryder, S., Walton, N. A., Wiik, K., Östlin, G.
American Association for the Advancement of Science (AAAS)
Published 2018Staff ViewPublication Date: 2018-08-03Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyGeosciencesComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: AstronomyPublished by: -
3Latest Papers from Table of Contents or Articles in PressDe, K., Kasliwal, M. M., Ofek, E. O., Moriya, T. J., Burke, J., Cao, Y., Cenko, S. B., Doran, G. B., Duggan, G. E., Fender, R. P., Fransson, C., Gal-Yam, A., Horesh, A., Kulkarni, S. R., Laher, R. R., Lunnan, R., Manulis, I., Masci, F., Mazzali, P. A., Nugent, P. E., Perley, D. A., Petrushevska, T., Piro, A. L., Rumsey, C., Sollerman, J., Sullivan, M., Taddia, F.
American Association for the Advancement of Science (AAAS)
Published 2018Staff ViewPublication Date: 2018-10-12Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyGeosciencesComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: AstronomyPublished by: -
4Articles: DFG German National LicensesFransson, C. M. ; Lennartson, B. ; Breitholtz, C.
[S.l.] : American Institute of Physics (AIP)
Published 2000Staff ViewISSN: 1089-7674Source: AIP Digital ArchiveTopics: PhysicsNotes: Active feedback of nonaxisymmetric resistive wall modes in tokamaks is investigated using control theory. Control systems are designed to stabilize the resistive wall mode of toroidal mode number n=1 and meet certain performance specifications for a set of test equilibria. The response of the plasma and resistive wall is described by low order rational functions from an electromagnetic model [Y. Q. Liu et al., Phys. Plasmas 7, 3681 (2000)]. Simple coil arrangements are assumed, both for the sensor and feedback coil arrays, and the sensors detect the perturbed poloidal field. The active coils are modeled both as broad strips and as thin wires, and several different controllers: P (proportional), PD (proportional plus derivative) and H∞ are investigated. An important parameter is the ratio, τ, of control system response time to the resistive wall time, and the analysis shows the restrictions on this ratio for acceptable performance. For an equilibrium that exceeds the no-wall beta limit by 63%, good control with broad strips and a PD controller is possible for τ(approximately-less-than)5.4, while thin-wire coils require τ(approximately-less-than)2.1. H∞ controllers give some improvement for thin wires and about a factor of 2 increase in τ for broad strips. The upper limit in τ decreases with increasing pressure. A control system designed to stabilize a certain pressure generally works well at lower pressures. © 2000 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesFransson, C. ; Mooney, J. ; Kinane, D. F. ; Berglundh, T.
Munksgaard : Munksgaard International Publishers
Published 1999Staff ViewISSN: 1600-051XSource: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Abstract. The aim of the present experiment was to study changes in (i) the composition of the inflammatory cell infiltrates and (ii) levels of σ 2-macroglobulin, lactoferrin and IgG subclasses in gingival crevicular fluid in young and old individuals during 3 weeks of plaque formation. To establish healthy gingival conditions, all subjects received professional tooth cleaning during a 4 week preexperimental period. The experimental sites included the mesio-palatal, palatal, and disto-palatal surfaces of all teeth present in the 15...25 tooth region. At baseline (day 0) assessments of plaque and gingivitis, microbial sampling and gingival fluid assessment were performed and one gingival biopsy harvested from each subject. Following the baseline examination, the participants abolished mechanical tooth cleaning measures in the palatal and approximal surfaces of 15... 25. The clinical examination and the gingival fluid measurement were repeated on days 7, 14 and 21 of no oral hygiene. The microbiological sampling and the biopsy procedure were repeated on days 7 and 21. The gingival crevicular fluid samples harvested from the old individuals had higher levels of a 2-macroglobulin and IgG3 compared to young subjects. The immunohistochemical analyses of the biopsies demonstrated that the gingival lesion representing the old individuals harbored a higher proportion of B-cells and a lower density of PMN cells compared to the infiltrate in the young group of subjects. It is suggested that differences exist in the inflammatory response to de novo plaque formation in young and old individuals.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesFransson, C. ; Freskgard, P.-O. ; Herbertsson, H. ; Johansson, Å. ; Jonasson, P. ; Martensson, L.-G. ; Svensson, M. ; Jonsson, B.-H. ; Carlsson, U.
Amsterdam : ElsevierStaff ViewISSN: 0014-5793Keywords: Carbonic anhydrase ; Peptidyl proline isomerase ; Reactivation ; Refolding ; Site-directed mutagenesis ; cis-trans IsomerizationSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesStaff View
ISSN: 1600-051XSource: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Abstract In the present “experimental gingivitis” study, the response of the marginal gingiva to plaque formation was studied in one group of young subjects, 20-25 years of age, and in one group of older subjects, aged 65-80 years. During a 4-week period, all subjects received a series of professional tooth cleaning to establish healthy gingival conditions. A baseline examination (Day 0) included assessments of plaque and gingivitis. Sites that were examined (the experimental sites) included the mesiopalatal, palatal, and dislopalatal surfaces of all teeth present in the 15. 25 tooth region. Among the experimental sites, microbial sampling and gingival fluid assessment were performed and one gingival biopsy harvested from each subject. Following the baseline examination, the participants abolished mechanical tooth cleaning measures in the palatal and approximal surfaces of 15, 25. The clinical examination and the gingival fluid measurement were repeated on days 7, 14 and 21 of no oral hygiene. The microbiological sampling and the biopsy procedure were repeated on days 7 and 21. The data collected demonstrated that old subjects, during a 3-week period of oral hygiene abstention, formed similar amounts of plaque as the young subjects, but developed more gingivitis than young subjects. Thus, the clinical gingivitis assessments, the gingival fluid measurements and morphometric determinations made in the biopsy samples documented that the gingival lesion which formed in the old individuals was more pronounced and contained more inflammatory cells than the corresponding lesion in the young subject sample.Type of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesPALUMBO, G. G. C. ; FABBIANO, G. ; FRANSSON, C. ; TRINCHIERI, G.
Oxford, UK : Blackwell Publishing Ltd
Published 1986Staff ViewISSN: 1749-6632Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Natural Sciences in GeneralType of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesGilmozzi, R. ; Cassatella, A. ; Clavel, J. ; Fransson, C. ; Gonzalez, R. ; Gry, C. ; Panagia, N. ; Talavera, A. ; Wamsteker, W.
[s.l.] : Nature Publishing Group
Published 1987Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] Very soon after its discovery, the positional coincidence between the star Sk - 69 202 and the supernova gave rise to the suggestion that this star was the progenitor of SN1987A1'2. A reanalysis of previous plates of the region of the supernova allowed one to determine that three stars were ...Type of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStaff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] The bright type II supernovae SN1979c and SN1980k were observed at a range of wavelengths from radio to X-ray wavelengths. Many of the observations can be interpreted in terms of a model involving the interaction of the supernova with a dense circumstellar medium4'6. The radio emission is ...Type of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesStaff View
ISSN: 1572-9672Source: Springer Online Journal Archives 1860-2000Topics: PhysicsNotes: Abstract Observations of NGC 5194/95 with the Einstein HRI show a very strong nuclear X-ray source, surrounded by a diffuse flux, three point sources and the companion. The diffuse flux, which correlates well with the radio continuum, is likely to originate from the disk population with age ∼2·109 yrs. The large luminosity from the nuclear source, together with optical and radio observations, shows that it belongs to the low luminosity active nuclei, thus extending this class to luminosities less than ∼1040 erg/s.Type of Medium: Electronic ResourceURL: