| 1. |
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| 2. |
- Bree, N, et al.
(author)
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Shape Coexistence in the Neutron-Deficient Even-Even Hg182-188 Isotopes Studied via Coulomb Excitation.
- 2014
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In: Physical Review Letters. - 1079-7114. ; 112:16
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Journal article (peer-reviewed)abstract
- Coulomb-excitation experiments to study electromagnetic properties of radioactive even-even Hg isotopes were performed with 2.85 MeV/nucleon mercury beams from REX-ISOLDE. Magnitudes and relative signs of the reduced E2 matrix elements that couple the ground state and low-lying excited states in Hg182-188 were extracted. Information on the deformation of the ground and the first excited 0+ states was deduced using the quadrupole sum rules approach. Results show that the ground state is slightly deformed and of oblate nature, while a larger deformation for the excited 0+ state was noted in Hg182,184. The results are compared to beyond mean field and interacting-boson based models and interpreted within a two-state mixing model. Partial agreement with the model calculations was obtained. The presence of two different structures in the light even-mass mercury isotopes that coexist at low excitation energy is firmly established.
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| 3. |
- Wrzosek-Lipska, K., et al.
(author)
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Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes : Coulomb excitation of 182Hg, 184Hg, 186Hg and 188Hg
- 2019
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In: European Physical Journal A. - : Springer Science and Business Media LLC. - 1434-6001 .- 1434-601X. ; 55:8
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Journal article (peer-reviewed)abstract
- The neutron-deficient mercury isotopes serve as a classical example of shape coexistence, whereby at low energy near-degenerate nuclear states characterized by different shapes appear. The electromagnetic structure of even-mass 182-188 Hg isotopes was studied using safe-energy Coulomb excitation of neutron-deficient mercury beams delivered by the REX-ISOLDE facility at CERN. The population of 01,2+, 21,2+ and 41+ states was observed in all nuclei under study. Reduced E2 matrix elements coupling populated yrast and non-yrast states were extracted, including their relative signs. These are a sensitive probe of shape coexistence and may be used to validate nuclear models. The experimental results are discussed in terms of mixing of two different configurations and are compared with three different model calculations: the Beyond Mean Field model, the Interacting Boson Model with configuration mixing and the General Bohr Hamiltonian. Partial agreement with experiment was observed, hinting to missing ingredients in the theoretical descriptions.
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| 4. |
- Petts, A., et al.
(author)
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Lifetime measurements and coulomb excitation of light Hg nuclei
- 2009
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In: Capture Gamma-Ray Spectroscopy and Related Topics. - : American Institute of Physics (AIP). - 9780735406230 ; , s. 414-418
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Conference paper (peer-reviewed)abstract
- Two complementary experimental programs have taken place to investigate the origin and evolution of shape coexistence in the light mercury region. Recoil Distance Doppler-shift measurements were performed at the University of Jyväskylä utilizing the Köln plunger device in conjunction with the JUROGAM + RITU + GREAT setup. In addition, Coulomb excitation measurements of 184,186,188Hg were performed at REX-ISOLDE using the MINIBALL Ge-detector array. The results of the lifetime measurements of the yrast states up to Iπ = 10+ in 182Hg are reported. Preliminary analysis of the Coulomb excitation data is also discussed.
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| 5. |
- Anderson, J. L., et al.
(author)
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The Fishery Performance Indicators: A Management Tool for Triple Bottom Line Outcomes
- 2015
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In: Plos One. - : Public Library of Science (PLoS). - 1932-6203. ; 10:5
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Journal article (peer-reviewed)abstract
- Pursuit of the triple bottom line of economic, community and ecological sustainability has increased the complexity of fishery management; fisheries assessments require new types of data and analysis to guide science-based policy in addition to traditional biological information and modeling. We introduce the Fishery Performance Indicators (FPIs), a broadly applicable and flexible tool for assessing performance in individual fisheries, and for establishing cross-sectional links between enabling conditions, management strategies and triple bottom line outcomes. Conceptually separating measures of performance, the FPIs use 68 individual outcome metrics-coded on a 1 to 5 scale based on expert assessment to facilitate application to data poor fisheries and sectors-that can be partitioned into sectorbased or triple-bottom-line sustainability-based interpretative indicators. Variation among outcomes is explained with 54 similarly structured metrics of inputs, management approaches and enabling conditions. Using 61 initial fishery case studies drawn from industrial and developing countries around the world, we demonstrate the inferential importance of tracking economic and community outcomes, in addition to resource status.
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| 6. |
- Krag, M., et al.
(author)
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Stress ulcer prophylaxis in the intensive care unit: an international survey of 97 units in 11 countries
- 2015
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In: Acta Anaesthesiologica Scandinavica. - : Wiley. - 0001-5172 .- 1399-6576. ; 59:5, s. 576-585
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Journal article (peer-reviewed)abstract
- Background: Stress ulcer prophylaxis (SUP) may decrease the incidence of gastrointestinal bleeding in patients in the intensive care unit (ICU), but the risk of infection may be increased. In this study, we aimed to describe SUP practices in adult ICUs. We hypothesised that patient selection for SUP varies both within and between countries. MethodsAdult ICUs were invited to participate in the survey. We registered country, type of hospital, type and size of ICU, preferred SUP agent, presence of local guideline, reported indications for SUP, criteria for discontinuing SUP, and concerns about adverse effects. Fisher's exact test was used to assess differences between groups. ResultsNinety-seven adult ICUs in 11 countries participated (eight European). All but one ICU used SUP, and 64% (62/97) reported having a guideline for the use of SUP. Proton pump inhibitors were the most common SUP agent, used in 66% of ICUs (64/97), and H2-receptor antagonists were used 31% (30/97) of the units. Twenty-three different indications for SUP were reported, the most frequent being mechanical ventilation. All patients were prescribed SUP in 26% (25/97) of the ICUs. Adequate enteral feeding was the most frequent reason for discontinuing SUP, but 19% (18/97) continued SUP upon ICU discharge. The majority expressed concern about nosocomial pneumonia and Clostridium difficile infection with the use of SUP. ConclusionsIn this international survey, most participating ICUs reported using SUP, primarily proton pump inhibitors, but many did not have a guideline; indications varied considerably and concern existed about infectious complications.
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| 9. |
- Jurado, B., et al.
(author)
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Investigation of the surrogate-reaction method via the simultaneous measurement of gamma-emission and fission probabilities
- 2017
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In: EPJ Web of Conferences. - : EDP Sciences. - 2101-6275 .- 2100-014X. ; 146
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Conference paper (peer-reviewed)abstract
- We present the results of two experiments where we have measured for the first time simultaneously the fission and gamma-decay probabilities induced by different surrogate reactions. In particular, we have investigated the 238 U(d,p), 238 U( 3 He,t) and 238 U( 3 He, 4 He) reactions as surrogates for the neutron-induced n + 238 U, n + 237 Np and n + 236 U reactions, respectively. In the region where gamma emission, neutron emission and fission compete, our results for the fission probabilities agree fairly well with the neutron-induced data, whereas our gamma-decay probabilities are significantly higher than the neutron-induced data. The interpretation of these results is not obvious and is discussed within the framework of the statistical model with preliminary results for calculated spin-parity distributions populated in surrogate reactions. We also present future plans for surrogate-reaction studies in inverse kinematics with radioactive-ion beams at storage rings.
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| 10. |
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| 11. |
- Berg, M, et al.
(author)
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A compact range telescope for K+ measurements
- 1996
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In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. - 0168-9002. ; 381:2-3, s. 267-274
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Journal article (peer-reviewed)abstract
- We present range telescopes for measurements of low energy K+ mesons together with first in-beam results. The hardware trigger, based on the observation of the mu(+) from the K+ --> mu(-) + nu(mu) decay channel, is designed for subthreshold hadron-nucleus
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| 12. |
- Elmer, R, et al.
(author)
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K+ emission in symmetric heavy ion reactions at subthreshold energies
- 1996
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In: PHYSICAL REVIEW LETTERS. - : AMER INST PHYSICS. ; 77:24, s. 4884-4886
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Journal article (peer-reviewed)abstract
- Subthreshold K+ production cross sections have been measured in symmetric Ne + NaF, Ni + Ni, and Au + Au collisions at 1.0A GeV. The mass dependence is strong, close to A(2). The angular distributions are nonisotropic in the center-of-mass system. Introdu
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| 13. |
- Glas, Gerie J., et al.
(author)
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Ventilation practices in burn patients-an international prospective observational cohort study
- 2021
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In: BURNS & TRAUMA. - : Oxford University Press. - 2321-3868 .- 2321-3876. ; 9
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Journal article (peer-reviewed)abstract
- Background: It is unknown whether lung-protective ventilation is applied in burn patients and whether they benefit from it. This study aimed to determine ventilation practices in burn intensive care units (ICUs) and investigate the association between lung-protective ventilation and the number of ventilator-free days and alive at day 28 (VFD-28). Methods: This is an international prospective observational cohort study including adult burn patients requiring mechanical ventilation. Low tidal volume (V-T) was defined as V-T <= 8 mL/kg predicted body weight (PBW). Levels of positive end-expiratory pressure (PEEP) and maximum airway pressures were collected. The association between V-T and VFD-28 was analyzed using a competing risk model. Ventilation settings were presented for all patients, focusing on the first day of ventilation. We also compared ventilation settings between patients with and without inhalation trauma. Results: A total of 160 patients from 28 ICUs in 16 countries were included. Low V-T was used in 74% of patients, median V-T size was 7.3 [interquartile range (IQR) 6.2-8.3] mL/kg PBW and did not differ between patients with and without inhalation trauma (p= 0.58). Median VFD-28 was 17 (IQR 0-26), without a difference between ventilation with low or high V-T (p= 0.98). All patients were ventilated with PEEP levels >= 5 cmH(2)O; 80% of patients had maximum airway pressures <30 cmH(2)O. Conclusion: In this international cohort study we found that lung-protective ventilation is used in the majority of burn patients, irrespective of the presence of inhalation trauma. Use of low V-T was not associated with a reduction in VFD-28.
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| 14. |
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| 15. |
- JERRESTAM, Dan, et al.
(author)
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IN-BEAM SPECTROSCOPIC STUDIES OF THE NUCLEUS CD-105
- 1995
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In: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474. ; 593:2, s. 162-176
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Journal article (peer-reviewed)abstract
- High spin states in Cd-105 have been studied using reactions Cd-106(p, pn), Cd-106(He-3, 2p2n), Zr-92(O-16, 3n) and Ge-76(S-34, 5n). The excited levels are dominated by a negative parity band structure up to spin 47/2(-) and a positive parity structure up
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| 16. |
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| 17. |
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| 18. |
- Perner, Anders, et al.
(author)
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Hydroxyethyl Starch 130/0.4 versus Ringer's Acetate in Severe Sepsis
- 2012
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In: New England Journal of Medicine. - 0028-4793 .- 1533-4406. ; 367:2, s. 124-134
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Journal article (peer-reviewed)abstract
- BACKGROUND Hydroxyethyl starch (HES) 130/0.4 is widely used for fluid resuscitation in intensive care units (ICUs), but its safety and efficacy have not been established in patients with severe sepsis. METHODS In this multicenter, parallel-group, blinded trial, we randomly assigned patients with severe sepsis to fluid resuscitation in the ICU with either 6% HES 130/0.4 or Ringer's acetate at a dose of up to 33 ml per kilogram of ideal body weight per day. The primary outcome measure was either death or end-stage kidney failure (dependence on dialysis) at 90 days after randomization. RESULTS Of the 804 patients who underwent randomization, 798 were included in the modified intention-to-treat population. The two intervention groups had similar baseline characteristics. At 90 days after randomization, 201 of 398 patients (51%) assigned to HES 130/0.4 had died, as compared with 172 of 400 patients (43%) assigned to Ringer's acetate (relative risk, 1.17; 95% confidence interval [CI], 1.01 to 1.36; P=0.03); 1 patient in each group had end-stage kidney failure. In the 90-day period, 87 patients (22%) assigned to HES 130/0.4 were treated with renal-replacement therapy versus 65 patients (16%) assigned to Ringer's acetate (relative risk, 1.35; 95% CI, 1.01 to 1.80; P=0.04), and 38 patients (10%) and 25 patients (6%), respectively, had severe bleeding (relative risk, 1.52; 95% CI, 0.94 to 2.48; P=0.09). The results were supported by multivariate analyses, with adjustment for known risk factors for death or acute kidney injury at baseline. CONCLUSIONS Patients with severe sepsis assigned to fluid resuscitation with HES 130/0.4 had an increased risk of death at day 90 and were more likely to require renal-replacement therapy, as compared with those receiving Ringer's acetate.
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| 19. |
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| 20. |
- Evensen, L, et al.
(author)
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Thin detectors for the CHICSi Delta E-E telescope
- 1997
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In: IEEE TRANSACTIONS ON NUCLEAR SCIENCE. - : IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. - 0018-9499. ; 44:3, s. 629-634
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Journal article (peer-reviewed)abstract
- A pilot series of 10 mu m to 15 mu m thin silicon detectors has been made for the Delta E-E telescopes in the CHICSi detector system. This system will operate gt the CELSIUS heavy ion storage ring in Uppsala, Sweden, Delta E-E telescopes provide isotope i
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| 21. |
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| 22. |
- Kroigaard, M., et al.
(author)
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Scandinavian Clinical Practice Guidelines on the diagnosis, management and follow-up of anaphylaxis during anaesthesia
- 2007
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In: Acta Anaesthesiologica Scandinavica. - Copenhagen : Blackwell Munksgaard. - 0001-5172 .- 1399-6576. ; 51:6, s. 655-670
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Research review (peer-reviewed)abstract
- The present approach to the diagnosis, management and follow-up of anaphylaxis during anaesthesia varies in the Scandinavian countries. The main purpose of these Scandinavian Clinical Practice Guidelines is to increase the awareness about anaphylaxis during anaesthesia amongst anaesthesiologists. It is hoped that increased focus on the subject will lead to prompt diagnosis, rapid and correct treatment, and standardised management of patients with anaphylactic reactions during anaesthesia across Scandinavia. The recommendations are based on the best available evidence in the literature, which, owing to the rare and unforeseeable nature of anaphylaxis, mainly includes case series and expert opinion (grade of evidence IV and V). These guidelines include an overview of the epidemiology of anaphylactic reactions during anaesthesia. A treatment algorithm is suggested, with emphasis on the incremental titration of adrenaline (epinephrine) and fluid therapy as first-line treatment. Recommendations for primary and secondary follow-up are given, bearing in mind that there are variations in geography and resources in the different countries. A list of National Centres from which anaesthesiologists can seek advice concerning follow-up procedures is provided. In addition, an algorithm is included with advice on how to manage patients with previous suspected anaphylaxis during anaesthesia. Lastly, Appendix 2 provides an overview of the incidence, mechanisms and possibilities for follow-up for some common drug groups.
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| 26. |
- Ryzhikov, V. D., et al.
(author)
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Behavior of new ZnSe(Te,O) semiconductor scintillators under high doses of ionizing radiation
- 2001
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In: IEEE Transactions on Nuclear Science. - : Institute of Electrical and Electronics Engineers (IEEE). - 0018-9499 .- 1558-1578. ; 48:4, s. 1561-1564
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Journal article (peer-reviewed)abstract
- Changes in scintillation and optical properties of scintillators based on ZnSe(Te,O) crystals were studied under influence of ionizing radiations: gamma (similar to1.3 MeV, up to 500 Mrad), protons (similar to 18 MeV, fluence up to 10(16) per cm(-2)), electrons (0.54-2.26 MeV, up to 50 Mrad), and neutrons (source-thermal reactor channel, fluence up to 1016 per cm(2)). Light output of gamma-irradiated scintillator crystals ZnSe(Te,O) was shown to decrease by less than 10-12% under doses of 100 Mrad, with transparence in the visible range worse by only 10-12%. Effects of electron irradiation are similar. Under neutron irradiation of crystals, increase in their light output by 20-150% is observed, with nontrivial changes of optical characteristics in the visible and infrared (IR) spectral ranges. Proton irradiation caused the most sharp degradation of scintillation properties of ZnSe(Te,O) crystals, with selective absorption bands appearing in the ER (4-7 mum) region. Accounting for the role of recombination centers related to zinc vacancies and properties of interstitial zinc atoms, a model is considered of radiation-stimulated processes in ZnSe(Te,O) semiconductor scintillators.
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| 27. |
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