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Träfflista för sökning "WFRF:(Hansen K) srt2:(1995-1999)"

Search: WFRF:(Hansen K) > (1995-1999)

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  • Humbert, F., et al. (author)
  • Longitudinal and Transverse-Momentum Distributions of Li-9 Fragments from Break-up of Li-11
  • 1995
  • In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. - 0370-2693. ; 347:3-4, s. 198-204
  • Journal article (peer-reviewed)abstract
    • Transverse and longitudinal momentum distributions of Li-9 fragments from Li-11 break-up reactions in C, Al and Pb targets have been measured at 280 MeV/u. The two-neutron removal cross-section was measured to be sigma(-2n), = 0.26 +/- 0.02 b for the carbon target, sigma(-2n) = 0.47 +/- 0.08 b for the aluminum target and sigma(-2n), = 1.9 +/- 0.4 b for the lead target. No significant difference is observed between the narrow widths (FWHM approximate to 47 MeV/c) of the transverse and longitudinal momentum distributions of the Li-9 fragments. The physical implications of this are discussed.
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  • Nilsson, Thomas, 1965, et al. (author)
  • He-6 and neutron momentum distributions from He-8 in nuclear break-up reactions at 240 MeV/u
  • 1996
  • In: Nuclear Physics A. - 0375-9474. ; 598:3, s. 418-434
  • Journal article (peer-reviewed)abstract
    • Neutron and He-6 momentum distributions from He-8 break-up reactions in a C target have been measured at 240 MeV/u. The two-neutron removal cross section was found to be sigma(-2n) = 0.27 +/- 0.03 b. The nature of the momentum distributions is interpreted in some simple reaction scenarios.
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  • Nilsson, Thomas, 1965, et al. (author)
  • Neutron Momentum Distributions from Core Break-up Reactions of Halo Nuclei
  • 1995
  • In: Europhysics Letters. - 0295-5075 .- 1286-4854. ; 30:1, s. 19-24
  • Journal article (peer-reviewed)abstract
    • Neutron angular distributions from violent break-up reactions of Li-11 and Be-11 have been measured at 28 MeV/u and 280 MeV/u and at 41 MeV/u and 460 MeV/u, respectively. The derived neutron momentum distributions show a narrow component in transverse momentum that is within uncertainties independent of beam energy and target charge. This component is suggested to be simply related to the momentum distribution of the loosely bound halo neutron(s) in the projectiles.
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  • FUHRBERG, K, et al. (author)
  • COMPTON-SCATTERING OF 87 MEV PHOTONS BY HE-4
  • 1995
  • In: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. ; 591:1, s. 1-14
  • Journal article (other academic/artistic)abstract
    • Differential cross sections for Compton scattering by He-4 have been measured at photon energies ranging from 83.7 to 93.8 MeV with a weighted average of 87 MeV using the bremsstrahlung beam of the MAX-LAB (Lund) nuclear-physics facility. The experimental
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  • Zinser, M., et al. (author)
  • Invariant-mass spectroscopy of Li-10 and Li-11
  • 1997
  • In: Nuclear Physics A. - 0375-9474. ; 619:1-2, s. 151-176
  • Journal article (peer-reviewed)abstract
    • Break-up of secondary Li-11 ion beams (280 MeV/nucleon) on C and Pb targets into Li-9 and neutrons is studied experimentally. Cross sections and neutron multiplicity distributions are obtained, characterizing different reaction mechanisms. Invariant-mass spectroscopy for Li-11 and Li-10 is performed. The E1 strength distribution, deduced from electromagnetic excitation of Li-11 up to an excitation energy of 4 MeV comprises similar to 8% of the Thomas-Reiche-Kuhn energy-weighted sumrule strength. Two low-lying resonance-like structures are observed for Li-10 at decay energies of 0.21(5) and 0.62(10) MeV, the former one carrying 26(10)% of the strength and likely to be associated with an s-wave neutron decay. A strong di-neutron correlation in Li-11 can be discarded. Calculations in a quasi-particle RPA approach are compared with the experimental results for Li-10 and Li-11. (C) 1997 Elsevier Science B.V.
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  • Bøg-Hansen, Erik, et al. (author)
  • Risk factor clustering in patients with hypertension and non-insulin-dependent diabetes mellitus. The Skaraborg Hypertension Project
  • 1998
  • In: Journal of Internal Medicine. - 1365-2796. ; 243:3, s. 223-232
  • Journal article (peer-reviewed)abstract
    • OBJECTIVES: To assess the coexistence of hypertension and diabetes, associations with cardiovascular risk factors and the achievement of current treatment goals. DESIGN: A community-based, cross-sectional, observational study. SETTING: Hypertension and diabetes outpatient clinics in primary health care, Skara, Sweden. SUBJECTS: All patients (n = 1116; 488 men, 628 women) who performed an annual follow-up from May 1992 to September 1993. MAIN OUTCOME MEASURES: Hypertension, non-insulin-dependent diabetes mellitus (NIDDM), blood pressure, fasting B-glucose, lipids, HbAlc, body mass index (BMI), waist hip ratio (WHR). RESULTS: Hypertension alone was found in 286 men and 430 women, hypertension and NIDDM combined in 102 men and 102 women, and NIDDM alone in 100 men and 96 women. Taking new cases into account, the proportion of hypertension among NIDDM patients was 57%, and the proportion of NIDDM among hypertensives was 26%. Men and women with both hypertension and NIDDM had a higher systolic blood pressure and women also had a higher diastolic blood pressure (men 168/88 mmHg, women 165/86 mmHg) than those with hypertension alone (men 152/87 mmHg, women 156/82 mmHg) (P < or = 0.001). Cardiovascular risk factors accumulated in patients with both hypertension and NIDDM (triglycerides, BMI and WHR). A diastolic blood pressure < or = 90 mmHg was achieved by 71% men and 84% women with hypertension. HbAlc < 7.5% was attained by 71% men and 70% women with NIDDM. CONCLUSIONS: A considerable coexistence of hypertension and NIDDM was demonstrated. Cardiovascular risk factors clustered in patients with both diseases and their blood pressure was less controlled. These patients thus comprised a clinically defined group at high risk. By current guidelines, control of hypertension and NIDDM seemed appropriate.
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  • Grevy, S., et al. (author)
  • Core-breakup reactions of the halo nuclei Be-11 and Li-11: momentum distributions and shadow effects
  • 1999
  • In: Nuclear Physics A. - 0375-9474. ; 650:1, s. 47-61
  • Journal article (peer-reviewed)abstract
    • The halo nuclei Be-11 and Li-11 have been studied in core-breakup reactions where the halo neutrons are expected to be released without a major distortion due to the reaction. The widths of the halo-neutron momentum distributions have been extracted in coincidence with He fragments, Gamma = 32 +/- 4 MeV/c, and Li fragments, Gamma = 42 +/- 4 MeV/c for Be-11 and with He fragments, Gamma =42+/-6 MeV/c for Li-11. The Be-11 breakup gives a very low neutron multiplicity of 0.38+/-0.09 which is a manifestation of the shadowing of the neutron in the core-breakup reaction. This value can be understood from a simple theoretical calculation, which also accounts for the observed transverse momentum widths at small angles. (C) 1999 Elsevier Science B.V.
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  • Hansen, G, et al. (author)
  • Retningslinjer for utredning og behandling av kronisk obstruktiv lungesykdom
  • 1995
  • In: Tidsskrift for Den Norske Lægeforening. - 0029-2001. ; 115:6, s. 710-713
  • Journal article (peer-reviewed)abstract
    • A group of chest physicians, general practitioners, clinical pharmacologist and pharmacists appointed by the Institute of Pharmacotherapy, University of Oslo has evaluated the present knowledge about treatment of chronic obstructive lung disease. The group discusses today's medical treatment of this rather numerous group of patients. It is stated that, to a high degree, the treatment of these patients lacks proper documentation, and that treatment needs to be tested out on an individual basis. The group proposes a flow chart for this purpose.
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