| 1. |
- Thörngren Engblom, Pia, et al.
(författare)
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Experimental search for evidence of the three-nucleon force and a new analysis method
- 2004
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Ingår i: FEW-BODY PROBLEMS IN PHYSICS. - : AIP. - 0735402531 ; , s. 65-68
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- A research program with the aim of investigating the spin dependence of the three-nucleon continuum in pd collisions at intermediate energies was carried out at IUCF using the Polarized INternal Target EXperiments (PINTEX) facility. In the elastic scattering experiment at 135 and 200 MeV proton beam energies a total of 15 independent spin observables were obtained. The breakup experiment was done with a vector and tensor polarized beam of 270 MeV and an internal polarized hydrogen gas target. We developed a novel technique for the analysis of the breakup observables, the sampling method. The new approach takes into account acceptance and non-uniformities of detection efficiencies and is suitable for any kinematically complete experiment with three particles in the final state.
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| 2. |
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| 3. |
- Kuros-Zolnierczuk, J., et al.
(författare)
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Faddeev Calculations of Breakup Reactions with Realistic Experimental Constraints
- 2004
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Ingår i: Few-Body Systems. - : Springer Science and Business Media LLC. - 0177-7963 .- 1432-5411. ; 34, s. 259-273
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Tidskriftsartikel (refereegranskat)abstract
- We present a method to integrate predictions from a theoretical model of a reaction with three bodies in the final state over the region of phase space covered by a given experiment. The method takes into account the true experimental acceptance, as well as variations of detector efficiency, and eliminates the need for a Monte-Carlo simulation of the detector setup. The method is applicable to kinematically complete experiments. Examples of the use of this method include sveral polarization observables in dp breakup at 270 MeV. The calculations are carried out in the Faddeev framework with the CD Bonn nucleon-nucleon interaction, with or without the inclusion of an additional three-nucleon force.
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| 4. |
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| 5. |
- Andersson, M, et al.
(författare)
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Isospin resolved double pion production in the reaction p+d -> He-3+2 pi
- 2000
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 485:4, s. 327-333
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Tidskriftsartikel (refereegranskat)abstract
- Neutral and charged two-pion production in p + d --> He-3 + 2 pi reactions has been studied at CELSIUS at a proton beam energy of 477 MeV. The total cross section for double pion production is 0.22 +/- 0.03 mu b. The ratio of the cross sections for the pr
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| 6. |
- Andersson, M, et al.
(författare)
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The exclusive p plus d -> He-3+2 pi reaction at CELSIUS
- 2000
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Ingår i: ACTA PHYSICA POLONICA B. - : ACTA PHYSICA POLONICA B, JAGELLONIAN UNIV, INST PHYSICS. ; , s. 2123-2126
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Konferensbidrag (refereegranskat)abstract
- Neutral and charged two-pion production in p + d --> He-3 --> 2 pi reactions has been studied at a proton beam energy of 477 MeV. The total cross section for double pion production is 0.22 +/- 0.03 mub. The ratio of the cross sections for the production o
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| 7. |
- Meyer, H.O, et al.
(författare)
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Complete set of polarization observables in (pol)p(pol)p->pp pi0 clos to threshold
- 2001
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Ingår i: Phys. Rev. C. - : The American Physical Society. ; 63:6, s. 064002-1
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Tidskriftsartikel (refereegranskat)abstract
- In a kinematically complete experiment we have measured the two analyzing powers and the five spin correlation coefficients of the reaction (pol)p pol(p) -> p p pi0 as a function of all five parameters of the three-body final state for bombarding energies
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| 8. |
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| 9. |
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| 10. |
- Ringbom, A, et al.
(författare)
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The B-10,B-11(n, p)Be-10,Be-11 reactions at E-n=96 MeV
- 2001
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Ingår i: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474. ; 679:3-4, s. 231-250
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Tidskriftsartikel (refereegranskat)abstract
- Double-differential cross sections of the B-10,B-11(n,p)Be-10,Be-11 reactions have been measured at 96 MeV in the angular range 0 degrees -30 degrees for excitation energies up to 35 MeV. The spectra have been decomposed into different multipolarities usi
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| 11. |
- Wachtell, K., et al.
(författare)
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Relation of impaired left ventricular filling to systolic midwall mechanics in hypertensive patients with normal left ventricular systolic chamber function: the Losartan Intervention for Endpoint Reduction in Hypertension (LIFE) study
- 2004
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Ingår i: Am Heart J. - 1097-6744. ; 148:3, s. 538-44
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Patients with hypertensive left ventricular (LV) hypertrophy commonly have diastolic dysfunction with preserved LV ejection fraction. LV systolic midwall shortening (MWS) may be impaired in hypertensive patients with normal LV ejection fraction. However, it is unclear whether impaired LV filling is related to depressed systolic midwall mechanics. METHODS: Echocardiographic measures of LV diastolic filling and systolic performance were compared in 632 unmedicated patients with stage II or III hypertension and LV hypertrophy determined by electrocardiogram, with LV ejection fraction >55% and <2+ mitral regurgitation. RESULTS: Stress-corrected LV MWS, an index of myocardial contractility, was lower in patients with abnormal as opposed to normal LV filling patterns (98% +/- 12% vs 102% +/- 10%, P <.001) and in patients with prolonged as opposed to normal isovolumic relaxation time (IVRT) (98% +/- 13% vs 101% +/- 12%, P =.014). Stress-corrected MWS was <85% of predicted levels in more patients with abnormal LV filling patterns (11.8% vs 6.3%) or with long IVRT (> or =105 msec) (34% vs 21%, both P <.05). In regression analyses, lower stress-corrected MWS and higher LV mass were independent correlates of longer IVRT, while lower stress-corrected MWS was the only independent correlate of prolonged mitral valve deceleration time (P =.017). Higher LV mass had strong, statistically independent relationships to longer IVRT (by 0.3 g/msec) and decreased stress-corrected MWS (by 0.5 g/%; both P <.0001), independent of body size and age. CONCLUSION: In patients with moderate hypertension and target organ damage who have normal LV ejection fraction, impaired early diastolic LV relaxation (abnormal E/A ratio, prolonged IVRT and deceleration time) is associated with impaired LV systolic midwall mechanics independent of higher LV mass.
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| 12. |
- Welin-Berger, K., et al.
(författare)
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Physicochemical interaction of local anesthetics with lipid model systems : Correlation with in vitro permeation and in vivo efficacy
- 2002
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Ingår i: Journal of Controlled Release. - 0168-3659 .- 1873-4995. ; 81:1-2, s. 33-43
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Tidskriftsartikel (refereegranskat)abstract
- In dermal/transdermal drug administration stratum corneum (SC) is often the rate-limiting step. Furthermore, the intercellular lipid domain of SC is nowadays widely accepted as the major contributor to the skin barrier. The current work investigates whether the difference in the level of topical efficacy of local anesthetic compounds correlates with the type of interaction between the drug and the intercellular lipids of SC. Therefore, local anesthetics of varying topical efficacy were evaluated with respect to their effect on the morphology of various model lipid systems using small and wide angle X-ray diffraction (SWAXD) and differential scanning calorimetry (DSC). The model lipids used were glyceryl monooleate, sphingomyelin and lipids isolated from human SC. Furthermore, partitioning into isolated human SC as well as permeation through isolated human SC and human tape-stripped skin were investigated in vitro. The results indicate that local anesthetics may act as their own permeation enhancers by increasing the degree of hydrocarbon chain fluidity of the intercellular lipids. Eventually these interactions may induce non-lamellar reversed types of liquid crystalline structures locally in SC, which further facilitate the drug mobility. The large difference in topical efficacy of the investigated local anesthetics could not be explained simply by looking at their effect on the phase behavior of lipid model systems. Despite the similarities in physicochemical properties of these substances, the in vitro skin permeability differed markedly (AD>EMLA>lidocaine>prilocaine>sameridine). Thus, it was concluded that sufficient drug permeability over SC is essential to obtain local anesthesia by blocking the superficial nociceptors.
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| 13. |
- Daehnick, W.W, et al.
(författare)
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Spin correlations in polarized p polarized p -> p n pi+ production near threshold
- 2002
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Ingår i: Physical Review C. Nuclear Physics. - : American Physical Society. - 0556-2813 .- 1089-490X. ; 65, s. 024003-1
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Tidskriftsartikel (refereegranskat)abstract
- A first measurement of longitudinell as well as transverse spin correlation coefficients for the reaction pp->pn pi+ is made using a polarized proton target and a polarized proton beam. We report kinematically complete measurements for this reaction at 32
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| 14. |
- Engblom, J, et al.
(författare)
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A Worst-Case Execution-Time Analysis Tool Prototype for Embedded Real-Time Systems
- 2001
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Ingår i: Proc. of the Workshop on Real-Time Tools (RT-TOOLS 2001) held in conjunction with CONCUR 2001.
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Konferensbidrag (refereegranskat)abstract
- This paper gives an overview of the Worst-Case Execution Time (WCET) analysis research performed by the WCET group at Uppsala University, Sweden, in cooperation with C-LAB in Paderborn, Germany. We have defined a modular architecture for a WCET es
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| 15. |
- Engblom, J
(författare)
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Getting the Least Out of Your C Compiler
- 2001
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Ingår i: Proc. of the Embedded Systems Conference, San Francisco. - : CMP Media.
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Konferensbidrag (refereegranskat)abstract
- Using only the internal program and data memory of a microcontroller can save large costs in embedded systems design. This requires, however, that the program fits into the memory? which is not always easy to accomplish. This article discusses how to hel
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| 16. |
- Engblom, J
(författare)
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On Hardware and Hardware Models for Embedded Real-Time Systems
- 2001
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Ingår i: Proc. of the IEEE Embedded Real-Time Systems Workshop held in conjunction with the IEEE Real-Time Systems Symposium (RTSS 2001.
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Konferensbidrag (refereegranskat)abstract
- When building an embedded real-time systems, the choice of hardware platform is very important to create an analyzable and predictable system. Also, the quality of the models of the hardware used in software tools is very important to the correctness
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| 17. |
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| 18. |
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| 19. |
- Meyer, HO, et al.
(författare)
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Observation of a large longitudinal analyzing power in a nuclear reaction
- 2000
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Ingår i: Physics Letters B. - : ELSEVIER SCIENCE BV. - 0370-2693 .- 1873-2445. ; 480:1-2, s. 7-11
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Tidskriftsartikel (refereegranskat)abstract
- We have measured the longitudinal analyzing power A(z) of the pp --> pp pi(0) reaction at 375 MeV bombarding energy. We find that for certain angle combinations of the outgoing particles the observed A(z) is as large as 0.3, demonstrating that sizeable lo
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| 20. |
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| 21. |
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| 22. |
- Stappert, F, et al.
(författare)
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Efficient Longest Executable Path Search for Programs with Complex Flows and Pipeline Effects.
- 2001
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Ingår i: Proceedings of the 4th International Conference on Compilers, Architectures, and Synthesis for Embedded Systems (CASES 2001). - : ACM Press.
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Konferensbidrag (refereegranskat)abstract
- Current development tools for embedded real-time systems do not efficiently support the timing aspect. The most important timing parameter for scheduling and system analysis is the Worst-Case Execution Time (WCET) of a program. This paper present
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| 23. |
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