| 1. |
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| 2. |
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| 3. |
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| 4. |
- Aro, Rudolf, 1992-, et al.
(author)
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Extractable organofluorine analysis: A way to screen for elevated per- and polyfluoroalkyl substance contamination in humans?
- 2022
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In: Environment International. - : Elsevier BV. - 0160-4120 .- 1873-6750. ; 159
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Journal article (peer-reviewed)abstract
- The ubiquitous occurrence of a few per- and polyfluoroalkyl substances (PFAS) in humans and the environment has been previously reported. However, the number of PFAS humans and the environment are potentially exposed to is much higher, making it difficult to investigate every sample in detail. More importantly, recent studies have shown an increasing fraction of potentially unknown PFAS in human samples. A screening tool for identifying samples of concern that may contain high PFAS levels, to be studied more thoroughly, is needed. This study presents a simplified workflow to detect elevated PFAS levels using extractable organofluorine (EOF) analysis. A fluorine mass balance analysis on samples with high EOF, targeting 63 PFAS, can then confirm the PFAS contamination. Whole blood samples from a cohort of individuals with historical drinking water contamination from firefighting foams (n = 20) in Ronneby (Sweden) and a control group (n = 9) with background exposure were used as a case study. The average EOF concentration in the Ronneby group was 234 ng/ mL F (<107-592 ng/mL F) vs 24.8 ng/mL F (17.6-37.8 ng/mL F) in the control group. The large difference (statistically significant, p < 0.05) in the EOF levels between the exposed and control groups would have made it possible to identify samples with high PFAS exposure only using EOF data. This was confirmed by target analysis, which found an average n-ary sumation PFAS concentration of 346 ng/mL in the exposed group and 7.9 ng/mL in the control group. The limit of quantification for EOF analysis (up to 107 ng/mL F using 0.5 mL whole blood) did not allow for the detection of PFAS levels in low or sub parts per billion (ng/mL) concentrations, but the results indicate that EOF analysis is a suitable screening method sensitive enough to detect elevated/significant/exposure above background levels by known or unknown PFAS.
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| 5. |
- Auranen, K., et al.
(author)
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Experimental study of isomeric intruder 1/2(+) states in At-197,At-203
- 2017
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In: Physical Review C. - : AMER PHYSICAL SOC. - 2469-9985 .- 2469-9993. ; 95:4
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Journal article (peer-reviewed)abstract
- A newly observed isomeric intruder 1/2(+) state [T-1/2 = 3.5( 6) ms] is identified in At-203 using a gas-filled recoil separator and fusion-evaporation reactions. The isomer is depopulated through a cascade of E3 and mixed M1/E2 transitions to the 9/2(-) ground state, and it is suggested to originate from the pi(s(1/2))(-1) configuration. In addition, the structures above the 1/2(+) state in At-203 and At-197 are studied using in-beam gamma-ray spectroscopy, recoil-decay tagging, and recoil-isomer decay tagging methods. The 1/2(+) state is fed from 3/2(+) and 5/2(+) states, and the origin of these states are discussed.
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| 6. |
- Auranen, K., et al.
(author)
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Prompt and delayed spectroscopy of At-203 : Observation of a shears band and a 29/2(+) isomeric state
- 2018
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In: Physical Review C. - : American Physical Society. - 2469-9985 .- 2469-9993. ; 97:2
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Journal article (peer-reviewed)abstract
- Using fusion-evaporation reactions, a gas-filled recoil separator, recoil-gating technique and recoil-isomer decay tagging technique we have extended the level scheme of At-203 (N = 118) significantly. We have observed an isomeric [tau = 14.1(3) mu s] state with a spin and parity of 29/2(+). The isomeric state is suggested to originate from the pi(h(9/2)) circle times |Po-202; 11(-)> coupling, and it is depopulated through 286 keV E2 and 366 keV E3 transitions. In addition, we have observed a cascade of magnetic-dipole transitions which is suggested to be generated by the shears mechanism.
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| 7. |
- Badran, H., et al.
(author)
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Confirmation of the new isotope Pb-178
- 2016
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In: PHYSICAL REVIEW C. - 2469-9985. ; 94:5
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Journal article (peer-reviewed)abstract
- The extremely neutron-deficient isotope Pb-178 has been produced. The GREAT spectrometer at the focal plane position of the gas-filled separator RITU was used to study the alpha decay of Pb-178 and its alpha-decay chain through alpha-alpha correlations. The alpha decay was measured to have an energy and half-life of E-alpha = 7610(30) keV and t(1/2) = 0.21(-0.08)(+0.21) ms, respectively. The half-life is consistent with recent theoretical calculations using the Coulomb and proximity potential model. The alpha-decay reduced width and hindrance factor for Pb-178 were deduced and correspond to an unhindered Delta l = 0 transition. In addition, the mass excess of Pb-178 and the alpha-decay Q value were calculated from the experimental results and compared to theoretical values.
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| 8. |
- Badran, H., et al.
(author)
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Decay spectroscopy of Pb-179(82)97 and evidence for a 9/2(-) intruder state in Tl-179(81)98
- 2017
-
In: Physical Review C. - 2469-9985 .- 2469-9993. ; 96:6
-
Journal article (peer-reviewed)abstract
- The very neutron-deficient isobars Pb-179 and Tl-179 have been produced using the fusion-evaporation reactions Pd-104(Kr-78,xpyn), where x <= 1 and y >= 2. The gas-filled separator RITU was employed to transport and separate the recoiling nuclei of interest from the scattered beam and unwanted products. The GREAT spectrometer was used to study the decay properties through alpha-alpha and alpha-gamma correlations, which has allowed the ground state of Pb-179 to be assigned as I-pi = 9/2(-). The decay of Pb-179 was measured to have an alpha-particle energy and half-life of E-alpha = 7348(5) keV and t(1/2) = 2.7(2) ms, respectively. A search for a nu i(13/2) state in Pb-179 was performed, but only a limit of excitation energy and half-life was obtained. In Tl-179 a t(1/2) = 114(-10)(+18) ns isomeric state, likely at an excitation energy of 904.5(9) keV, was identified and is tentatively assigned to be a 9/2(-) proton intruder state.
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| 9. |
- Carroll, R. J., et al.
(author)
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Excited states in the proton-unbound nuclide Ta-158
- 2016
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In: Physical Review C. Nuclear Physics. - : American Physical Society. - 0556-2813 .- 1089-490X. ; 93:3
-
Journal article (peer-reviewed)abstract
- Excited states in the neutron-deficient odd-odd proton-unbound nuclide Ta-158 have been investigated in two separate experiments. In the first experiment, Ir-166 nuclei were produced in the reactions of 380 MeV Kr-78 ions with an isotopically enriched Mo-92 target. The alpha-decay chain of the 9(+) state in Ir-166 was analyzed. Fine structure in the a decay of the 9(+) state in Re-162 established a 66 keV difference in excitation energy between the lowest-lying 9(+) and 10(+) states in Ta-158. Higher-lying states in Ta-158 were populated in the reactions of 255 MeV Ni-58 ions with an isotopically enriched Pd-102 target. Gamma-ray decay paths that populate, depopulate, and bypass a 19(-) isomeric state have been identified. The general features of the deduced level scheme are discussed and the prospects for observing proton emission branches from excited states are considered.
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| 10. |
- Cresswell, Will, et al.
(author)
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Does an opportunistic predator preferentially attack nonvigilant prey?
- 2003
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In: Animal Behaviour. - : Elsevier BV. - 0003-3472 .- 1095-8282. ; 66:4, s. 643-648
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Journal article (peer-reviewed)abstract
- The dilution effect as an antipredation behaviour is the main theoretical reason for grouping in animals and states that all individuals in a group have an equal risk of being predated if equally spaced from each other and the predator. Stalking predators, however, increase their chance of attack success by preferentially targeting nonvigilant individuals, potentially making relative vigilance rates in a group relatively important in determining predation compared with the dilution effect. Many predators, however, attack opportunistically without stalking, when targeting of nonvigilant individuals may be less likely, so that the dilution effect will then be a relatively more important antipredation reason for grouping. We tested whether an opportunistically hunting predator, the sparrowhawk, Accipiter nisus, preferentially attacked vigilant or feeding prey models presented in pairs. We found that sparrowhawks attacked vigilant and feeding mounts at similar frequencies. Our results suggest that individuals should prioritize maximizing group size or individual vigilance dependent on the type of predator from which they are at risk. When the most likely predator is a stalker, individuals should aim to have the highest vigilance levels in a group, and there may be relatively little selective advantage to being in the largest group. In contrast, if the most likely predator is an opportunist, then individuals should simply aim to be in the largest group and can also spend more time foraging without compromising predation risk. For most natural systems this will mean a trade-off between the two strategies dependent on the frequency of attack of each predator type.
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| 11. |
- Doncel, Maria, et al.
(author)
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Lifetime measurements of excited states in W-162 and W-164 and the evolution of collectivity in rare-earth nuclei
- 2017
-
In: Physical Review C. - : American Physical Society. - 2469-9985 .- 2469-9993. ; 95:4
-
Journal article (peer-reviewed)abstract
- Lifetimes of the first excited 2(+) states in the extremely neutron- deficient W-162 and W-164 nuclei have been measured using the recoil distance Doppler shift technique. Experimental B(E2) data for the isotopic chains of hafnium, tungsten, and osmium, from the midshell region near the beta-stability line towards the N = 82 closed shell and the most neutron-deficient nuclides, are compared with predictions of nuclear deformations and 2(1)(+) -> 0(g.s)(.+) reduced transition strengths from different classes of state-of-the-art theoretical model calculations. The results reveal striking differences and deficiencies in the predictive power of current nuclear structure models.
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| 12. |
- Ekerfors, Ulrika, et al.
(author)
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Muscle performance and fatigue in compensated chronic liver disease.
- 2019
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In: Scandinavian journal of gastroenterology. - : Informa UK Limited. - 1502-7708 .- 0036-5521. ; 54:7, s. 925-933
-
Journal article (peer-reviewed)abstract
- Background: A common and debilitating symptom in patients with chronic liver disease is fatigue (CLD). Muscle dysfunction has been suggested to be a key mechanism of fatigue in CLD. Objective: We aimed to evaluate fatigue and the potential association with muscle performance and physical activity in outpatients with CLD. Methods: Two-hundred seventy outpatients with CLD were included, (52±15years, mean±SD; 151 females) with autoimmune hepatitis (n=49), primary biliary cholangitis (n=45), primary sclerosing cholangitis (n=46), chronic hepatitis B (n=57) or C (n=73). Patients with a Child-Pugh >6 were excluded. The questionnaire Fatigue Impact Scale (FIS) was used to evaluate fatigue, and physical activity was evaluated through a self-reported level of physical activity. Muscle function was assessed with four muscle tests, walking speed, handgrip strength, standing heel-rise test (SHT) and 'Timed Up and Go' test (TUG). Results: The median total FIS score was 30 (40% had FIS > 40, considered high-fatigue). Diminished muscle performance was observed in the SHT (% of predicted value: 53±26%) and with maximum grip strength (85±20%). The FIS score was significantly different between groups of CLDs (p=.004). In multivariate analysis the TUG (p=.001), SHT (p=.005), antidepressants (p<.001), and level of physical activity (p=.001) were associated with fatigue (R2=29%). Subjects with higher levels of physical activity had lower FIS (p<.001). Conclusions: In patients with CLD, fatigue was associated with low muscle performance and reduced level of physical activity, which could be a potential therapeutic target.
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| 13. |
- Eriksson, Per, et al.
(author)
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A brominated flame-retardant, 2,2',4,4',5-pentabromodiphenyl ether: Uptake, retention and induction of neurobehavioural derangement in mice, during a critical phase of neonatal brain development.
- 2002
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In: Toxicological Sciences. ; 67, s. 98-103
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Journal article (peer-reviewed)
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| 14. |
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| 15. |
- Ertoprak, Aysegul, et al.
(author)
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LIFETIME MEASUREMENTS WITH THE DOPPLER SHIFT ATTENUATION METHOD USING A THICK HOMOGENEOUS PRODUCTION TARGET - VERIFICATION OF THE METHOD
- 2017
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In: Acta Physica Polonica B. - : Jagiellonian University Press. - 0587-4254 .- 1509-5770. ; 48:3, s. 325-329
-
Journal article (peer-reviewed)abstract
- Doppler Shift Attenuation Method (DSAM) analysis of excited-state lifetimes normally employs thin production targets mounted on a thick stopper foil ("backing") serving to slow down and stop the recoiling nuclei of interest in a well-defined manner. Use of a thick, homogeneous production target leads to a more complex analysis as it results in a substantial decrease in the energy of the incident projectile which traverses the target with an associated change in the production cross section of the residues as a function of penetration depth. Here, a DSAM lifetime analysis using a thick homogeneous target has been verified using the Doppler broadened lineshapes of gamma rays following the decay of highly excited states in the semi-magic (N = 50) nucleus Ru-94. Lifetimes of excited states in the Ru-94 nucleus have been obtained using a modified version of the LINESHAPE package from the Doppler broadened lineshapes resulting from the emission of the gamma rays, while the residual nuclei were slowing down in the thick (6 mg/cm(2)) metallic Ni-58 target. The results have been validated by comparison with a previous measurement using a different (RDDS) technique.
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| 16. |
- Ertoprak, A., et al.
(author)
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Lifetimes of core-excited states in semi-magic Rh-95
- 2020
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In: European Physical Journal A. - : SPRINGER. - 1434-6001 .- 1434-601X. ; 56:11
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Journal article (peer-reviewed)abstract
- Lifetimes of negative-parity states have been determined in the neutron deficient semi-magic (N = 50) nucleus Rh-95. The fusion-evaporation reaction Ni-58(Ca-40, 3p) was used to populate high-spin states in Rh-95 at the Grand Accelerateur National d'Ions Lourds (GANIL) accelerator facility. The results were obtained using the Doppler Shift Attenuation Method (DSAM) based on the Doppler broadened line shapes produced during the slowing down process of the residual nuclei in a thick 6 mg/cm(2) metallic target. B(M1) and B(E2) reduced transition strengths are compared with predictions from large-scale shell-model calculations. state-of-the-art theory. Remarkably, the structural features up to moderate angular momentum of nuclei immediately below the N = Z = 50 shell closures can be described with high accuracy in a very simple way by shell-model calculations including only the g(9/2) and p(1/2) subshells. Of special interest is the neutron-proton pair coupling scheme which is expected to appear in the heaviest N=Z nuclei [1,2] and the seniority structure of the N = 50 isotones [3-7]. However, multiple core-excited states have been observed in the semi-magic nuclei of the Sn-100 region [8-10]. The theoretical study of those states is a challenging task, which requires a significantly larger model space for their interpretation. Transition probabilities between nuclear states provide important constraints for theoretical modelling of the structure of the nuclei of interest. Our previous lifetime study of the semimagic (N = 50) nucleus Ru-94 [ 11,12] provided information on the electromagnetic decay properties of neutron-core excited states. We now address lifetime measurements in its closest, more neutron deficient, isotone Rh-95 using the same DSAM technique. The experimental results have been interpreted within the framework of large-scale shell-model (LSSM) calculations.
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| 17. |
- Hermansson-Borrebaeck, Rasmus, et al.
(author)
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Beliefs about medications when treating hypertension in primary health care : results from "PERson-centredness in hypertension management using information Technology (PERHIT)"
- 2023
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In: Blood Pressure. - 0803-7051. ; 32:1
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Journal article (peer-reviewed)abstract
- PURPOSE: Hypertension is a major global health concern. Despite of efficient antihypertensive medications a low percentage of patients reach a blood pressure (BP) of <140/90. Nonadherence is a great concern in hypertension treatment and patients' beliefs about medications has been shown to have a strong impact on adherence. The objective of this study is to examine beliefs about medications and its impact on BP treatment in a group of Swedish primary healthcare patients treated for hypertension with or without an E-health platform.MATERIALS AND METHOD: In a randomised unblinded controlled trial, 949 patients with hypertension from Swedish primary health care centres were included. The intervention group used a web-based system to support self-management of hypertension for eight weeks. Beliefs about medication questionnaire (BMQ) were administered to all patients at inclusion, 8-week follow up and 1-year follow up.RESULTS: Data were collected from the 862 patients who completed the trial. No statistically significant difference was found in BMQ-scores between the intervention and the control group. An association between lower scores in the BMQ subsection 'General-Harm' and achieving target BP of <140/90 mmHg were noted ( p = 0.021). CONCLUSION: This study shows a significant association between beliefs about medication and BP levels, on hypertensive patients in the Swedish primary care setting, in only one out of four subsections of the BMQ. The intervention did not have a significant effect on changing patients' beliefs about medication. Further emphasis on patients' beliefs about medications could be useful in the clinical setting.
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| 18. |
- Herzáň, A., et al.
(author)
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Detailed spectroscopy of Bi 193
- 2015
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In: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 92:4
-
Journal article (peer-reviewed)abstract
- An experiment aiming to study shape coexistence in Bi193 has been performed. Due to its transitional character, it has an exceptionally large number of structures identified close to the yrast line. Many new states have been found, significantly extending the previously known level scheme of Bi193, including several new rotational bands. The πi13/2 band was extended to Iπ=45/2+. The Iπ=31/2+ member of the πi13/2 band was found to de-excite also to a long-lived isomeric state. This isomeric state is located at 2350 keV and has a spin and parity of 29/2+. The half-life of the isomeric state was measured to be 85(3) μs and it decays via the emission of an 84 keV E2 transition. A level structure feeding this isomeric state was constructed. A low-energy, 49 keV transition has been identified to depopulate the (29/2-) isomeric state, which places it at an energy 2405 keV in the level scheme. This is the first time such a decay has been observed in the neutron-deficient Bi isotopes. A superdeformed band almost identical to that present in the neighboring isotope Bi191, based on the 1/2[651] Nilsson orbital, has also been identified.
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| 19. |
- Herzan, A., et al.
(author)
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Detailed spectroscopy of Bi-195
- 2017
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In: Physical Review C. - : American Physical Society. - 2469-9985 .- 2469-9993. ; 96:1
-
Journal article (peer-reviewed)abstract
- An experiment focused on the study of shape coexistence and new high-spin structures in Bi-195 has been performed. The nucleus is in a transitional region of the bismuth isotope chain. A large number of new states have been found, resulting in a significant extension of the previously known level scheme. Several new collective structures have been identified. A strongly coupled rotational band built upon the 13/2(+) isomeric state was extended up to I-pi = (49/2(+)) and an energy of 5706 keV. The I-pi = 31/2(+) member of the pi i(13/2) band was also found to feed a new long-lived isomeric state with an excitation energy of 2616 keV and a spin and parity of I-pi = 29/2(+). The half-life of the 29/2+ isomeric state was determined to be 1.49(1) mu s. It decays via the emission of 457-keV E2 and 236-keV E1 transitions, respectively. A low-energy 46-keV E2 transition has been identified to depopulate the (29/(2-)) isomeric state, with a measured half-life of T-1/2 = 614(5) ns. This transition allows the excitation energy of the isomeric state to be determined as 2381 keV. The feeding patterns of both 29/2(+) and (29/2(-)) isomeric states have also been described. This is the first time collective structures have also been observed up to high spins and excitation energies in the neutron-deficient Bi-195 nucleus. Evidence for the manifestation of shape coexistence in Bi-195 is also discussed.
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| 20. |
- Hodge, D., et al.
(author)
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Identification of a dipole band above the Iπ=31/2- isomeric state in Pb 189
- 2015
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In: Physical Review C. Nuclear Physics. - : American Physical Society. - 0556-2813 .- 1089-490X. ; 92:5
-
Journal article (peer-reviewed)abstract
- A dipole band of six transitions built upon a firmly established Iπ=31/2- isomeric state has been identified in Pb189 using recoil-isomer tagging. This is the lightest odd-mass Pb nucleus in which a dipole band is known. The dipole nature of the new transitions has been confirmed through angular-intensity arguments. The evolution of the excitation energy and the aligned-angular momentum of the states in the new dipole band are compared with those of dipole bands in heavier, odd-mass lead isotopes. This comparison suggests that the new band in Pb189 is based upon a π[s1/2-2h9/2i13/2]11- - ν[i13/2+-1]13/2+ configuration. However, the increased aligned-angular momentum in Pb189 may suggest evidence for a reduced repulsive proton/neutron-hole interaction compared to dipole bands in the heavier mass isotopes.
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| 21. |
- Holmberg, Ulrika, 1966, et al.
(author)
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Konsumtionsrapporten - konsumtionen 2005
- 2007
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Reports (other academic/artistic)abstract
- I Konsumtionsrapporten - konsumtionen 2005 sammanfattas och analyseras hushållens privata konsumtion i Sverige. Rapporten inleds med en översik av offentlig statstik om hushållens utgifter, prisutvecklingen, disponibla inkomster, inköpsplaner och välbefinnande. Därefter analyseras 4 områden djupare av forskare knutna till CFK, dessa är: konsumtionsaktiviteter, konsumtionen före och efter millenieskiftet, IT- och mediakonsumtion och hållbar konsumtion. Sist i rapporten finns bilagor med detaljerad statistik.
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| 22. |
- Jakobsson, Björn, et al.
(author)
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Improved co-operation in vocational rehabilitation with systematic rehabilitation group meetings.
- 2002
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In: Disability and Rehabilitation. - : Informa UK Limited. - 0963-8288 .- 1464-5165. ; 24:14, s. 734-740
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Journal article (peer-reviewed)abstract
- PURPOSE: The present aim was to investigate the communicative pattern in two rehabilitation groups. The rehabilitation group consisted of the client, a supervisor, an employer representative, an occupational health physician, a rehabilitation counsellor from the national social insurance office and a support person. METHOD: Participatory observation of 22 rehabilitation meetings. The communication was tape-recorded and transcribed word for word. The transcripts were coded and analysed both qualitatively and quantitatively. RESULTS AND CONCLUSION: The client made the most utterances in the groups, but most often in the form of answers to questions from the other actors. Following the client, the physician made the next most frequent utterances, most often as questions. The subjects most discussed concerned the client's situation regarding work, health and material support. None of the "professionals" dominated the meetings, although one picture that emerged was that the physician and employer representative played more prominent roles as takers of initiative and as coordinators while the client was more passive than the other actors. The discussions were calm and much latitude was allowed for the participants to put forward their own requirements, thoughts and feelings. The rehabilitation group may be viewed as a meeting place for "experts" and clients. The further management of the rehabilitation was by the actor the client most immediately needed. In this, rehabilitation in the rehabilitation group differs from the "case management" common in the rehabilitation field.
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| 23. |
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| 24. |
- Jakobsson Larsson, Birgitta, 1965-, et al.
(author)
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Registered nurses' experiences on job satisfaction in nursing home settings
- 2024
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In: Nursing Open. - : John Wiley & Sons. - 2054-1058. ; 11:6
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Journal article (peer-reviewed)abstract
- AimTo describe what registered nurses' experience to be important to job satisfaction in nursing home settings.DesignThis is a qualitative study based on data from individual interviews.MethodsSixteen registered nurses working in nursing homes were interviewed, and their responses were analysed with systematic text condensation.ResultsA total of six categories were developed to describe various aspects of job satisfaction among registered nurses at nursing homes: meaningfulness is essential, to possess control and manageability is central, a possibility to balance daily challenges with professional development, supportive leadership is imperative, the nursing team's competence and companionship, and being confident in one's own profession.ConclusionIn the present study, meaningfulness was essential to job satisfaction, and work was experienced to be meaningful and engaging when the demands were manageable, the workload controllable, and when the registered nurses felt supported by management and co-workers. Conversely, if the demands were too high, the workload was beyond their control and the nurses felt unsupported, then the work felt meaningless and thus unsatisfactory.
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| 25. |
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| 26. |
- Jakobsson, Sofie, 1968, et al.
(author)
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Performance of the Swedish version of the Revised Piper Fatigue Scale.
- 2013
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In: European Journal of Oncology Nursing. - : Elsevier BV. - 1462-3889 .- 1532-2122. ; 17:6, s. 808-13
-
Journal article (peer-reviewed)abstract
- PURPOSE: The Revised Piper Fatigue scale is one of the most widely used instruments internationally to assess cancer-related fatigue. The aim of the present study was to evaluate selected psychometric properties of a Swedish version of the RPFS (SPFS).METHODS: An earlier translation of the SPFS was further evaluated and developed. The new version was mailed to 300 patients undergoing curative radiotherapy. The internal validity was assessed using Principal Axis Factor Analysis with oblimin rotation and multitrait analysis. External validity was examined in relation to the Multidimensional Fatigue Inventory-20 (MFI-20) and in known-groups analyses.RESULTS: Totally 196 patients (response rate = 65%) returned evaluable questionnaires. Principal axis factoring analysis yielded three factors (74% of the variance) rather than four as in the original RPFS. Multitrait analyses confirmed the adequacy of scaling assumptions. Known-groups analyses failed to support the discriminative validity. Concurrent validity was satisfactory.CONCLUSION: The new Swedish version of the RPFS showed good acceptability, reliability and convergent and- discriminant item-scale validity. Our results converge with other international versions of the RPFS in failing to support the four-dimension conceptual model of the instrument. Hence, RPFS suitability for use in international comparisons may be limited which also may have implications for cross-cultural validity of the newly released 12-item version of the RPFS. Further research on the Swedish version should address reasons for high missing rates for certain items in the subscale of affective meaning, further evaluation of the discriminative validity and assessment of its sensitivity in detecting changes over time.
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| 27. |
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| 28. |
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| 29. |
- Jakobsson, Ulrika, et al.
(author)
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Spectroscopy of Low-lying States in Neutron-deficient Astatine and Francium Nuclei
- 2015
-
In: NUCLEAR STRUCTURE AND DYNAMICS '15. - : American Institute of Physics (AIP). - 9780735413283
-
Conference paper (peer-reviewed)abstract
- Low-lying states in neutron-deficient astatine and francium nuclei have been studied by means of in-beam and delayed spectroscopy. The 13/2(+) state has been observed in francium nuclei with a similar down-sloping trend as in neighbouring astatine and bismuth isotopes, as a function of decreasing neutron number. A systematic trend can also now be seen for the 1/2(+) state both in astatine and francium nuclei, where the level energy decreases steeply as a function of neutron number when moving further away from the neutron shell closure. This trend is very similar between astatine nuclei and their francium isotones. Moreover, shape coexistence has been observed between the 13/2(+) state and the spherical 9/2(-) ground state in Fr-203 and Fr-205.
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| 30. |
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| 31. |
- Joss, D. T., et al.
(author)
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Spectroscopy at the two-proton drip line : Excited states in 158W
- 2017
-
In: Physics Letters B. - : Elsevier. - 0370-2693 .- 1873-2445. ; 772, s. 703-707
-
Journal article (peer-reviewed)abstract
- Excited states have been identified in the heaviest known even-Z N=84 isotone 158W, which lies in a region of one-proton emitters and the two-proton drip line. The observation of γ-ray transitions feeding the ground state establishes the excitation energy of the yrast 6+ state confirming the spin-gap nature of the α-decaying 8+ isomer. The 8+ isomer is also expected to be unbound to two-proton emission but no evidence for this decay mode was observed. An upper limit for the two-proton decay branch has been deduced as b2p≤ 0.17% at the 90% confidence level. The possibility of observing two-proton emission from multiparticle isomers in nearby nuclides is considered.
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| 32. |
- Kullberg, Cecilia, et al.
(author)
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Impaired flight ability prior to egg laying : A cost of being a capital breeder
- 2005
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In: Functional Ecology. - : Wiley. - 0269-8463 .- 1365-2435. ; 19:1, s. 98-101
-
Journal article (peer-reviewed)abstract
- 1To investigate flight ability in captive Zebra Finches during reproduction we compared change in escape take-off ability and wing load of reproducing females with their mates and non-reproducing females when attacked by a model raptor. 2Initially females had 18% higher wing load than males. Non-reproducing females and females that had started egg-laying flew slower than males. Reproducing females reduced wing load during egg-laying and flew faster when the clutch was completed. Non-breeding females remained on high wing load and flow slower than breeding females that had completed their clutch. 3The increase in flight speed of breeding females was explained by a reduction in wing load during egg-laying. 4Zebra Finches use accumulated reserves to produce eggs and pay a cost in terms of reduced flight ability, but then regain flight performance when the clutch is laid, probably demonstrating a predation cost of capital breeding in birds.
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| 33. |
- Kärrholm, Jenny, et al.
(author)
-
The views of sick-listed employees' immediate superiors on co-operation in vocational rehabilitation.
- 2007
-
In: Work. - 1051-9815 .- 1875-9270. ; 29:2, s. 101-111
-
Journal article (peer-reviewed)abstract
- PURPOSE: The purpose of this research was to investigate the views of sick-listed employees' immediate superiors on co-operation in vocational rehabilitation before and during a systematic, multi-professional, client-centred, solution-oriented co-operation project in vocational rehabilitation (SMVR intervention). METHOD: A same-subject study with a questionnaire was used, with 95 immediate superiors giving their views on co-operation both before and during the SMVR intervention. RESULTS AND CONCLUSIONS: The immediate superiors felt that the SMVR intervention was successful in promoting co-operation, and reported a significant decrease in referrals of employees from one organisation to another without the problem being resolved. Hence SMVR co-operation was experienced positively by the immediate superiors and in fact led to a joint responsibility in finding solutions. The immediate superiors saw greater possibilities than before for employees to resume regular or other jobs during the SMVR intervention. A more elaborate co-operation model such as the SMVR intervention increased the immediate superiors' experience of successful vocational rehabilitation. Organizations seeking to increase efficiency in vocational rehabilitation might well analyse their work methods and improve their forms of co-operation.
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| 34. |
- Lewis, M. C., et al.
(author)
-
Decay of a 19(-) isomeric state in Lu-156
- 2018
-
In: Physical Review C. - : American Physical Society. - 2469-9985 .- 2469-9993. ; 98:2
-
Journal article (peer-reviewed)abstract
- A multiparticle spin-trap isomeric state having a half-life of 179(4) ns and lying 2601 keV above the yrast 10(+) state in Lu-156 has been discovered. The Lu-156 nuclei were produced by bombarding isotopically enriched Cd-106 targets with beams of Ni-58 ions, separated in flight using the gas-filled separator RITU and their decays were measured using the GREAT spectrometer. Analysis of the main decay path that populates yrast states observed previously suggests a spin-parity assignment of 19(-) for the isomeric state, which is consistent with isomeric states identified in the N = 85 isotones. Comparison with other decay paths in Lu-156 indicates that the [pi h(11/)(2)(-1) circle times nu h(9/2)]10(+) state at the bottom of the yrast sequence is likely to be the a-decaying isomeric state, with the [pi h(11/)(2)(-1) circle times nu f(7/2)]9(+) state lying 62 keV above it. The relative ordering of the lowest-lying 9(+) and 10(+) states is inverted in Lu-156 compared with its odd-odd isotones.
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| 35. |
- Li, Hongjie, et al.
(author)
-
First identification of rotational band structures in Re-166(75)91
- 2015
-
In: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 92:1
-
Journal article (peer-reviewed)abstract
- Excited states in the odd-odd, highly neutron-deficient nucleus Re-166 have been investigated via the Mo-92(Kr-78, 3p1n)Re-166 reaction. Prompt gamma rays were detected by the JUROGAM II. gamma-ray spectrometer, and the recoiling fusion-evaporation products were separated by the recoil ion transport unit (RITU) gas-filled recoil separator and implanted into the Gamma Recoil Electron Alpha Tagging spectrometer located at the RITU focal plane. The tagging and coincidence techniques were applied to identify the gamma-ray transitions in Re-166, revealing two collective, strongly coupled rotational structures, for the first time. The more strongly populated band structure is assigned to the pi h(11/2)[514]9/2(-) circle times vi(13/2)[660]1/2(+) Nilsson configuration, while the weaker structure is assigned to be built on a two-quasiparticle state of mixed pi h(11/2)[514]9/2(-) circle times v[h(9/2)f(7/2)]3/2(-) character. The configuration assignments are based on the electromagnetic characteristics and rotational properties, in comparison with predictions from total Routhian surface and particle-rotor model calculations.
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| 36. |
- Li, Hongjie, et al.
(author)
-
Lifetime measurements in Re-166 : Collective versus magnetic rotation
- 2016
-
In: PHYSICAL REVIEW C. - : American Physical Society. - 2469-9985. ; 93:3
-
Journal article (peer-reviewed)abstract
- Lifetimes of excited states in the neutron-deficient odd-odd nucleus Re-166 have been measured for the first time using the recoil distance Doppler-shift method. The measured lifetime for the (8(-)) state; tau = 480 (80) ps, enabled an assessment of the multipolarities of the gamma rays depopulating this state. Information on electromagnetic transition strengths were deduced for the gamma-ray transitions from the (9(-)), (10(-)), and (11(-)) states, and in the case of the (10(-)) and (11(-)) states limits on the B (M1) and B(E2) strengths were estimated. The results are compared with total Routhian surface predictions and semiclassical calculations. Tilted-axis cranking calculations based on a relativistic mean-field approach (TAC-RMF) have also been performed in order to test the possibility of magnetic rotation in the 166Re nucleus. While the TAC-RMF calculations predict a quadrupole-deformed nuclear shape with similar beta(2) deformation as obtained by using the TRS model, it was found that the experimental electromagnetic transition rates are in better agreement with a collective -rotational description.
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| 37. |
- Li, Hongjie, et al.
(author)
-
Recoil-decay tagging spectroscopy of W-162(74)88
- 2015
-
In: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 92:1
-
Journal article (peer-reviewed)abstract
- Excited states in the highly neutron-deficient nucleus W-162 have been investigated via the Mo-92(Kr-78, 2 alpha) W-162 reaction. Prompt gamma rays were detected by the JUROGAM II high-purity germanium detector array and the recoiling fusion-evaporation products were separated by the recoil ion transport unit (RITU) gas-filled recoil separator and identified with the gamma recoil electron alpha tagging (GREAT) spectrometer at the focal plane of RITU. gamma rays from W-162 were identified uniquely using mother-daughter and mother-daughter-granddaughter alpha-decay correlations. The observation of a rotational-like ground-state band is interpreted within the framework of total Routhian surface (TRS) calculations, which suggest an axially symmetric ground-state shape with a gamma-soft minimum at beta(2) approximate to 0.15. Quasiparticle alignment effects are discussed based on cranked shell model calculations. New measurements of the W-162 ground-state alpha-decay energy and half-life were also performed. The observed alpha-decay energy agrees with previous measurements. The half-life of W-162 was determined to be t(1/2) = 990(30) ms. This value deviates significantly from the currently adopted value of t(1/2) = 1360(70) ms. In addition, the alpha-decay energy and half-life of Os-166 were measured and found to agree with the adopted values.
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| 38. |
- Lind, Johan, et al.
(author)
-
Detection distance influencing escape behaviour in two parids (Parus major and P. caeruleus)
- 2003
-
In: Journal of Avian Biology. - 0908-8857 .- 1600-048X. ; 34:3, s. 233-236
-
Journal article (peer-reviewed)abstract
- When birds are attacked by aerial predators they should benefit by adjusting their escape to the prevailing attack situation. One important factor likely to affect escape decisions of prey, to our knowledge not previously studied, is the distance at which the attacking predator is detected. We investigated if great tits Parus major and blue tits P. caeruleus alter their escape behaviour to two different detection distances (2.3 m and 1m) by simulating surprise attacks using a predator model. Both species used the information about detection distance when escaping by increasing the escape angle at the shorter detection distance. In addition, blue tits adjusted to the shorter detection distance by dodging sideways more frequently. Great tits escaped initially steeper and faster than blue tits, whereas blue tits increased escape angle and speed more than great tits along the measured distance after taking wing
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| 39. |
- Lind, Johan, et al.
(author)
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Split-second escape decisions in blue tits (Parus caeruleus)
- 2002
-
In: Die Naturwissenschaften. - : Springer Science and Business Media LLC. - 0028-1042 .- 1432-1904. ; 89:9, s. 420-423
-
Journal article (peer-reviewed)abstract
- Bird mortality is heavily affected by birds of prey. Under attack, take-off is crucial for survival and even minor mistakes in initial escape response can have devastating consequences. Birds may respond differently depending on the character of the predator's attack and these split-second decisions were studied using a model merlin (Falco columbarius) that attacked feeding blue tits (Parus caeruleus) from two different attack angles in two different speeds. When attacked from a low attack angle they took off more steeply than when attacked from a high angle. This is the first study to show that escape behaviour also depends on predator attack speed. The blue tits responded to a high-speed attack by dodging sideways more often than when attacked at a low speed. Escape speed was not significantly affected by the different treatments. Although they have only a split-second before escaping an attack, blue tits do adjust their escape strategy to the prevailing attack conditions.
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| 40. |
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| 41. |
- Nielsen, Christel, et al.
(author)
-
Pregnancy-induced changes in serum concentrations of perfluoroalkyl substances and the influence of kidney function
- 2020
-
In: Environmental Health: A Global Access Science Source. - : Springer Science and Business Media LLC. - 1476-069X. ; 19:1
-
Journal article (peer-reviewed)abstract
- Background: Epidemiological associations between maternal concentrations of perfluoroalkyl substances (PFAS) and birth weight are inconsistent. There is concern that studies based on samples collected in late pregnancy may be confounded by kidney function but studies of the relation between pregnancy-induced changes in PFAS and kidney function are lacking. Our aims were to investigate changes in serum concentrations of perfluorononanoic acid (PFNA), perfluorooctanoic acid (PFOA), perfluorooctane sulfonate (PFOS) and perfluorohexane sulfonate (PFHxS) from early to late pregnancy and to explore relations to changes in glomerular filtration rate (GFR) and glomerular pore size. Methods: We conducted the study in a cohort of 73 pregnancies of normal-weight Swedish women without gestational diabetes and preeclampsia, enrolled 2009-2014. Blood was collected in median weeks 11 and 36, respectively, and analysed PFAS using liquid chromatography-tandem-mass-spectrometry. We estimated GFR based on creatinine and cystatin C and used the ratio eGFRcystatin C/eGFRcreatinine to indicate glomerular pore size. We used Wilcoxon signed-rank test to compare early and late measures and partial Spearman rank correlations to explore relations between changes in PFAS and kidney function. Results: Median concentrations of PFNA, PFOA and PFOS decreased by 15-21% but changes were uncorrelated to changes in kidney function (partial R = - 0.06-0.11). The observed increase in median PFHxS concentration of 69% was likely an artefact of systematic measurement error caused by coeluting endogenous inferences. Conclusions: Serum concentrations of PFNA, PFOA and PFOS decrease during pregnancy but the magnitudes of change are unrelated to parallel changes in eGFR and glomerular pore size, suggesting that changes in these indicators of kidney function are not important confounders in studies of PFAS and birth weight in pregnancies without gestational diabetes and preeclampsia. © 2020 The Author(s).
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| 42. |
- Ojala, Joonas, et al.
(author)
-
Reassigning the shapes of the 0+ states in the 186Pb nucleus
- 2022
-
In: Communications Physics. - : Springer Science and Business Media LLC. - 2399-3650. ; 5:1
-
Journal article (peer-reviewed)abstract
- Across the physics disciplines, the 186Pb nucleus is the only known system, where the two first excited states, together with the ground state, form a triplet of zero-spin states assigned with prolate, oblate and spherical shapes. Here we report on a precision measurement where the properties of collective transitions in 186Pb were determined in a simultaneous in-beam γ-ray and electron spectroscopy experiment employing the recoil-decay tagging technique. The feeding of the 02+ state and the interband 22+→21+ transition have been observed. We also present direct measurement of the energies of the electric monopole transitions from the excited 0+ states to the 0+ ground state. In contrast to the earlier understanding, the obtained reduced transition probability B(E2;21+→02+) value of 190(80) W.u., the transitional quadrupole moment ∣Qt(21+→02+)∣=7.7(33) eb and intensity balance arguments provide evidence to reassign the 02+ and 03+ states with predominantly prolate and oblate shape, respectively. Our work demonstrates a step-up in experimental sensitivity and paves the way for systematic studies of electric monopole transitions in this region. These electric monopole transitions probe the nuclear volume in a unique manner and provide unexploited input for development of the next-generation energy density functional models.
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| 43. |
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| 44. |
- Olsson Möller, Ulrika, et al.
(author)
-
Fighting for control in an unpredictable life : a qualitative study of older persons' experiences of living with chronic dizziness
- 2014
-
In: BMC Geriatrics. - 1471-2318 .- 1471-2318. ; 14
-
Journal article (peer-reviewed)abstract
- BACKGROUND: Dizziness in older people is associated with disability and reduced quality of life. Few studies have investigated how daily life is affected from the older person's perspective. Identifying barriers and resources in daily life could guide health care in how to direct efficient interventions. The aim of this study was to explore older persons' experiences of living with chronic dizziness.METHODS: In this qualitative study seven women aged 74-84 years and six men aged 73-87 years with chronic dizziness (≥3 months) recruited from a primary health care centre in 2012 participated in semi-structured interviews. The interviews were analysed by content analysis.RESULTS: Interpretation of the interviews resulted in the overall theme "Fighting for control in an unpredictable life" with two themes. The first theme "Striving towards normality" revealed a struggle in daily life in searching for a cure or improvement and finding a way to maintain ordinary life. This process could result in feelings of resignation or adaption to daily life, and factors that supported living with chronic dizziness were described. The second theme "Having a precarious existence" revealed that daily life included being exposed to threats such as a fear of recurrent attacks or of falling, which resulted in an insecure and inflexible way of life. A feeling that symptoms were not taken seriously was described.CONCLUSIONS: The present study showed that older persons with chronic dizziness have needs that are not met by health care. Despite the fact that frequent contact with health care was described, the respondents described barriers in daily life that led to a restricted, inflexible and insecure daily life. Health care should therefore be individually tailored with focus on aspects of daily life, especially safety aspects. Support should also be continued until the older persons with chronic dizziness have developed coping strategies to gain control of their daily life.
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| 45. |
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| 46. |
- Olsson Möller, Ulrika, et al.
(author)
-
Predictive Validity and Cut-Off Scores in Four Diagnostic Tests for Falls – A Study in Frail Older People at Home
- 2012
-
In: Physical & Occupational Therapy in Geriatrics. - : Informa UK Limited. - 0270-3181 .- 1541-3152. ; 30:3, s. 189-201
-
Journal article (peer-reviewed)abstract
- No study has investigated the predictive validity and cut-off scores in diagnostic tests for falls used in in-home assessment in frail older people. The objective was to investigate the predictive validity for falls in the Downton Fall Risk Index (DFRI), Timed Up and Go (TUG) and Romberg test (RT) used in in-home assessment of frail older people (65+ years). Data on the diagnostic tests were collected at baseline N = 153) and fall frequency were collected at six- and twelve-month follow-ups. The optimal cut-offs were 3 p in DFRI and 12 s in TUG. However, the validity indexes were generally low and only 40–50% were correctly classified. The RT showed low sensitivity. To increase the predictive validity for falls in this context, the use of DFRI and/or TUG as a part of a comprehensive fall-risk assessment tool, should be investigated in future studies
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| 47. |
- Olsson Möller, Ulrika, et al.
(author)
-
Prevalence and predictors of falls and dizziness in people younger and older than 80 years of age-A longitudinal cohort study
- 2013
-
In: Archives of gerontology and geriatrics (Print). - : Elsevier Ireland Ltd. - 0167-4943 .- 1872-6976. ; 56:1, s. 160-168
-
Journal article (peer-reviewed)abstract
- The objectives were to investigate the prevalence and predictors for falls and dizziness among people younger and older than 80 years of age. The sample was drawn from the Swedish National study on Aging and Care (SNAC) and comprised 973 and 1273 subjects with data on the occurrence of falls and dizziness respectively at baseline. Follow-ups were made after 3- and 6-years. Data included socio-demographics, physical function, health complaints, cognition, quality of life and medications. The prevalence of falls was 16.5% in those under aged 80 and 31.7% in those 80+ years while dizziness was reported by 17.8% and 31.0% respectively. Predictors for falls in those under aged 80 were neuroleptics, dependency in personal activities of daily living (PADL), a history of falling, vision impairment and higher age, and in those 80+ years a history of falling, dependency in instrumental activities of daily living (IADL), fatigue and higher age. Factors predicting dizziness in those under aged 80 were a history of dizziness, feeling nervous and reduced grip strength and in those 80+ years a history of dizziness and of falling. Predictors for falls and dizziness differed according to age. Specific factors were identified in those under aged 80. In those 80+ years more general factors were identified implying the need for a comprehensive investigation to prevent falls. This longitudinal study also showed that falling and dizziness in many older people are persistent and therefore should be treated as chronic conditions. (c) 2012 Elsevier Ireland Ltd. All rights reserved.
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| 48. |
- Parr, E., et al.
(author)
-
Excited states in Ra-217 populated in the alpha decay of Th-221
- 2020
-
In: Physical Review C. - : AMER PHYSICAL SOC. - 2469-9985 .- 2469-9993. ; 102:5
-
Journal article (peer-reviewed)abstract
- Fine structure in the alpha decay of Th-221(90) , populating excited states in( 88)(217)Ra, was studied using alpha gamma-coincidence spectroscopy. Two alpha-decay branches from Th-221 have been newly observed, with E-alpha(keV)[b(alpha)(%)] = 7951(8)[0.14(3)] and 8247(3)[1.51(12)], together with three previously known branches. Also, two new states in Ra-217 were identified at E = 177 and 227 keV. The ground-state configurations of the odd-A, N = 131 transitional isotones above Pb-208 are interpreted from their a-decay fine structure systematics and considered in terms of predictions using spherical shell and reflection-asymmetric models.
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| 49. |
- Parr, E., et al.
(author)
-
Fine structure in the alpha decay of high-spin isomers in Lu-155 and Hf-156
- 2018
-
In: Physical Review C. - : American Physical Society. - 2469-9985 .- 2469-9993. ; 98:2
-
Journal article (peer-reviewed)abstract
- Fine structure in the a decay of high-spin isomers in Lu-155( 25/2(-)) and Hf-156(8(+))has been studied for the first time using alpha gamma- coincidence analysis. Three new a decays from Lu-155(25/2(-)) and two from Hf-156(8(+)) have been identified, populating seniority s > 1 states in the N = 82 nuclei Tm-151 and Yb-152, respectively. The reduced hindrance factors of the a decays support the previous configuration assignments of the populated states. This is the first observation of states with excitation energy greater than 1.5 MeV being populated following a decay in nuclei outside of the Pb-208 region.
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| 50. |
- Parr, E., et al.
(author)
-
Identification of the J(pi)=1(-) state in Ra-218 populated via alpha decay of Th-222
- 2016
-
In: PHYSICAL REVIEW C. - 2469-9985. ; 94:1
-
Journal article (peer-reviewed)abstract
- The alpha decay of Th-222 populating the low-lying J(pi) = 3(-) state, and also a proposed 1(-) state, in Ra-218 has been observed. The observations suggest an excitation energy of 853 keV for the 1(-) state, which is 60 keV above the 3(-) state. The hindrance factors of these alpha decays give a possible boundary to the region of ground-state octupole deformation in the light-actinide nuclei. The relative positions of the J(pi) = 1(-) and 3(-) states suggest they are produced by an octupole-vibrational mechanism, as opposed to alpha clustering or rotations of a reflection-asymmetric octupole-deformed shape.
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