SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Eriksen J) srt2:(2000-2004)"

Sökning: WFRF:(Eriksen J) > (2000-2004)

  • Resultat 1-31 av 31
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  •  
2.
  •  
3.
  •  
4.
  •  
5.
  •  
6.
  •  
7.
  •  
8.
  •  
9.
  •  
10.
  •  
11.
  • Azad, Abul Kalam, 1966, et al. (författare)
  • Synthesis, structural and magnetic characterisation of the double perovskite A(2)MnMoO(6) (A = Ba, Sr)
  • 2004
  • Ingår i: Journal of Alloys and Compounds. - 0925-8388. ; 364:1-2, s. 77-82
  • Tidskriftsartikel (refereegranskat)abstract
    • A study of the crystallographic structure and magnetic properties of the double perovskites Ba2MnMoO6 and Sr2MnMoO6 in polycrystalline form has been carried out by means of neutron powder diffraction (NPD) and magnetization measurements. The Rietveld analysis of room temperature data shows that the Mn2+ and Mo6+ ions are B-site ordered, i.e. the structure is a NaCl-type ordered double perovskite. Ba2MnMoO6 crystallizes in the cubic space group Full-size image (<1 K) (a=8.1680(1)) and Sr2MnMoO6 crystallizes in the space group P42/n (a=7.9575(5), c=7.9583(9)). Bond valence sum (BVS) calculation revealed that these compounds have the valency pair of {Mn2+(3d5;t32ge2g), Mo6+(4d0)}. The magnetic measurements suggest that these compounds transform to an antiferromagnetic state below 10 K.
  •  
12.
  • Azad, AK, et al. (författare)
  • Nuclear and magnetic structure of Ca2MnWO6: A neutron powder diffraction study
  • 2001
  • Ingår i: MATERIALS RESEARCH BULLETIN. - 0025-5408. ; 36:13-14, s. 2485-2496
  • Tidskriftsartikel (refereegranskat)abstract
    • The nuclear and magnetic structures of the double provskite compound Ca2MnWO6 have been determined by neutron powder diffraction. Rietveld refinement shows that the compound adopts a monoclinic crystal structure with P2(1)/n symmetry. Magnetic refinement
  •  
13.
  • Azad, AK, et al. (författare)
  • Preparation, Crystal and Magnetic Structure of the Double Perovskite Ba2FeWO6
  • 2002
  • Ingår i: Applied Physics A. - : Springer Science and Business Media LLC. ; A 74, s. S763-765
  • Tidskriftsartikel (refereegranskat)abstract
    • Single-phase polycrystalline material of the double perovskite Ba2FeWO6 was prepared and characterized by X-ray and neutron powder diffraction (NPD). The crystal structure was tetragonal with lattice parameters a=b=5.7479(4) Å and c=8.1444(9) Å at room temperature (295 K). NPD data at 10 K shows the evidence of an antiferromagnetic ordering of the Fe atoms. The reverse Monte Carlo powder (RMCPOW) technique was used to find the magnetic structure, which showed that it is based on a unit cell related to that of the nuclear structure by the propagation vector 0 \frac[¯]1[¯][¯]2[¯] \frac[¯]1[¯][¯]2[¯] . An ordering of collinear spins was found with alternate layers in the c-direction or in the a-b plane. The model was checked by Rietveld refinement and the magnetic moment of iron was found to be 3.39(2)7B at 10 K.
  •  
14.
  •  
15.
  •  
16.
  •  
17.
  • Azad, AK, et al. (författare)
  • Synthesis, crystal structure, and magnetic characterization of the double perovskite Ba2MnWO6
  • 2001
  • Ingår i: MATERIALS RESEARCH BULLETIN. - 0025-5408. ; 36:12, s. 2215-2228
  • Tidskriftsartikel (refereegranskat)abstract
    • The double perovskite Ba2MnWO6 has been prepared as a pure powder by a conventional solid-state reaction process and studied by X-ray, neutron powder diffraction (NPD), magnetization, and AC susceptibility measurements. NPD, magnetization, and AC suscepti
  •  
18.
  • Bjornsson, P., et al. (författare)
  • Lattice and charge excitations in La1-xSrxMnO3
  • 2000
  • Ingår i: Physical Review B Condensed Matter. - 0163-1829 .- 1095-3795. ; 61, s. 1193-1197
  • Tidskriftsartikel (refereegranskat)abstract
    • We employ inelastic Light scattering to study the dependence of the lattice and charge excitations in La1-xSrxMnO3 compounds on doping and temperature. The phonons reveal strong local lattice distortions in the paramagnetic state, which gradually vanish below the ferromagnetic transition. We identify charge excitations in the metallic state. They exhibit a dependence on the doping level and symmetry selection rules typical for a plasmonlike excitation. Their energy scale of 100 meV requires a low-carrier-density component of the plasma outlining the importance of electronic interactions in La1-xSrxMnO3.
  •  
19.
  • Bruno, J., et al. (författare)
  • Modelling experimental results on radiolytic processes at the spent fuel water interface. I. Radiolysis products and U release
  • 2004
  • Ingår i: SCIENTIFIC BASIS FOR NUCLEAR WASTE MANAGEMENT XXVII. - 1558997520 ; , s. 397-402
  • Konferensbidrag (refereegranskat)abstract
    • Experimental and modelling efforts in the last decade in the frame of nuclear waste management field have been focused on studying the role of the UO2 surfaces in poising the redox state of solid/water systems. For this purpose, an experimental programme was developed consisting on dissolution experiments with PWR spent fuel fragments in an anoxic environment and by using different solution compositions. The collected data so far, indicate that production and fate of radiolysis products follow the same trends independently on the solution composition used in the tests. Hydrogen and oxygen concentrations show an initial increase with time until reaching a constant concentration. The trend observed for hydrogen peroxide is a decrease at short contact times to reach again a constant concentration with time. These steady-states indicate an overall balance of the generated radiolytic species. Modelling work indicates that uranium dissolution is controlled by the oxidation of the spent fuel matrix in 10mM bicarbonate solutions while in the tests carried out at lower or without carbonate concentrations uranium in the aqueous phase is governed by the precipitation of schoepite. These results are determinant to highlight that reducing conditions are restored in the aqueous phase in relatively short periods of time and at short distances away from the dynamic redox spent fuel/water interface.
  •  
20.
  • Chew, M, et al. (författare)
  • Thalidomide inhibits early atherogenesis in apoE-deficient mice
  • 2003
  • Ingår i: APMIS : acta pathologica, microbiologica, et immunologica Scandinavica. - 1600-0463. ; 111:Suppl., s. 113-116
  • Tidskriftsartikel (refereegranskat)abstract
    • Inflammation is present in all stages of atherosclerosis, from fatty streaks to rupture of mature plaques. Tumour necrosis factor (TNF)-alpha is expressed in atherosclerotic lesions but its role in atherogenesis has not been defined. To clarify the role of this cytokine, we administered thalidomide, a compound known to inhibit TNF-alpha production, to homozygous apolipoprotein E-deficient (apoE(-/-)) mice in order to examine the effect of thalidomide on the development of early atherosclerotic lesions. Twelve apoE(-/-) mice were randomized to receive either sustained-release thalidomide or placebo pellets implanted subcutaneously, and the amount of atherosclerosis was quantified six weeks later. Thalidomide was well tolerated and did not result in any changes in body weight. Mice treated with thalidomide had significantly smaller mean (7986+/-5189 vs 19607+/-10353 mum(2), p=0.05) and maximum (15800 [12777-23675] vs 37169 [28000-41351] mum(2), p=0.03) lesion sizes than those treated with placebo. Thus, thalidomide is capable of inhibiting the early development of atherosclerosis, presumably by inhibition of TNF-alpha secretion.
  •  
21.
  •  
22.
  •  
23.
  • Karlsson, J, et al. (författare)
  • Cardioprotective effects of the MR contrast agent MnDPDP and its metabolite MnPLED upon reperfusion of the ischemic porcine myocardium
  • 2001
  • Ingår i: Acta Radiologica. - 0284-1851 .- 1600-0455. ; 42:6, s. 540-547
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose: To evaluate whether manganese dipyridoxyl diphosphate (MnDPDP) or its metabolite manganese dipyridoxyl ethyldiamine (MnPLED) reduces post-ischemic myocardial injury. Material and Methods: Left anterior descending artery (LAD) in anesthetized pigs was occluded (30 min) followed by reperfusion (120 min) during hemodynamic monitoring and infarct assessment. Three ╡mol/kg MnDPDP, 1 ╡mol/kg MnPLED (or a mixture of both) or saline was injected i.v. 10 min before reperfusion followed by infusion of either 3 ╡mol/kg/h MnDPDP, 1 ╡mol/kg/h MnPLED (or a mixture of both) or saline. The plasma concentrations of MnDPDP, MnPLED and other metabolites (e.g., ZnDPDP and ZnPLED) were analyzed. Results: Femoral blood flow was reduced by 60% during early reperfusion in controls, whereas only 23 and 31% reductions were seen in animals treated with MnDPDP and MnPLED During that time, +LV/dP and -LV/dP (maximum rate of left ventricular isovolumic contraction and relaxation, respectively), systolic pressure and diastolic pressure fell significantly less in animals treated with MnDPDP or MnPLED. Three out of 5 control animals experienced ventricular fibrillation (VF) during reperfusion, whereas VF was not seen in any of the pigs treated with MnPLED or/and MnDPDP. The infarct sizes in saline- and MnPLED-treated animals were 39▒6 and 16▒5%, respectively, of the occluded areas. MnDPDP did not reduce the infarct size. A mixture of MnDPDP and MnPLED significantly reduced infarct size (10▒4%). When reperfusion started and throughout reperfusion, almost all injected MnDPDP was present as Zn-metabolites. Conclusion: MnPLED seems to reduce reperfusion-induced cardiac dysfunction and infarct size in pigs. MnDPDP does not reduce infarct size in the pig, probably because of the rapid exchange of Mn2+ for Zn2+ taking place in the pig.
  •  
24.
  • Kienzler, B., et al. (författare)
  • Swedish-German actinide migration experiment at ASPO hard rock laboratory
  • 2003
  • Ingår i: Journal of Contaminant Hydrology. - 0169-7722 .- 1873-6009. ; 61:04-jan, s. 219-233
  • Tidskriftsartikel (refereegranskat)abstract
    • Within the scope of a bilateral cooperation between Svensk Karnbranslehantering (SKB) and Forschungszentrum Karlsruhe, Institut fur Nukleare Entsorgung (FZK-INE), an actinide migration experiment is currently being performed at the Aspo Hard Rock Laboratory (HRL) in Sweden. This paper covers laboratory and in situ investigations on actinide migration in single-fractured granite core samples. For the in situ experiment, the CHEMLAB 2 probe developed by SKB was used. The experimental setup as well as the breakthrough of inert tracers and of the actinides Am, Np and Pu are presented. The breakthrough curves of inert tracers were analyzed to determine hydraulic properties of the fractured samples. Postmortem analyses of the solid samples were performed to characterize the flow path and the sorbed actinides. After cutting the cores, the abraded material was analyzed with respect to sorbed actinides. The slices were scanned optically to visualize the flow path. Effective volumes and inner surface areas were measured. In the experiments, only breakthrough of Np(V) was observed. In each experiment, the recovery of Np(V) was less than or equal to40%. Breakthrough of Am(III) and Pu(IV) as well as of Np(IV) was not observed.
  •  
25.
  • Kristenson, Margareta, 1950-, et al. (författare)
  • Psychobiological mechanisms of socioeconomic differences in health
  • 2004
  • Ingår i: Social Science and Medicine. - 0277-9536 .- 1873-5347. ; 58:8, s. 1511-1522
  • Tidskriftsartikel (refereegranskat)abstract
    • The association between low socioeconomic status and poor health is well established. Empirical studies suggest that psychosocial factors are important mediators for these effects, and that the effects are mediated by psychobiological mechanisms related to stress physiology. The objective of this paper is to explore these psychobiological mechanisms. Psychobiological responses to environmental challenges depend on acquired expectancies (learning) of the relations between responses and stimuli. The stress response occurs whenever an individual is faced with a challenge. It is an essential element in the total adaptive system of the body, and necessary for adaptation, performance and survival. However, a period of recovery is necessary to rebalance and to manage new demands. Individuals with low social status report more environmental challenges and less psychosocial resources. This may lead to vicious circles of learning to expect negative outcomes, loss of coping ability, strain, hopelessness and chronic stress. This type of learning may interfere with the recovery processes, leading to sustained psychobiological activation and loss of dynamic capacity to respond to new challenges. Psychobiological responses and health effects in humans and animals depend on combinations of demands and expected outcomes (coping, control). In studies of humans with chronic psychosocial stress, and low SES, cortisol baseline levels were raised, and the cortisol response to acute stress attenuated. Low job control was associated with insufficient recovery of catecholamines and cortisol, and a range of negative health effects. Biological effects of choice of lifestyle, which also depends on the acquired outcome expectancies, reinforce these direct psychobiological effects on health. The paper concludes that sustained activation and loss of capacity to respond to a novel stressor could be a cause of the higher risk of illness and disease found among people with lower SES.
  •  
26.
  •  
27.
  •  
28.
  •  
29.
  • Valkeapää, M, et al. (författare)
  • La1-xSrxMnO3 (0.33
  • 2001
  • Ingår i: Ferroelectrics. ; in press
  • Tidskriftsartikel (refereegranskat)
  •  
30.
  •  
31.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-31 av 31
Typ av publikation
tidskriftsartikel (26)
konferensbidrag (3)
annan publikation (1)
bokkapitel (1)
Typ av innehåll
refereegranskat (28)
övrigt vetenskapligt/konstnärligt (3)
Författare/redaktör
Eriksen, J (15)
Rundlöf, Håkan (9)
Svedlindh, P (7)
Mathieu, R (7)
Eriksson, S-G (7)
Azad, AK (7)
visa fler...
Ivanov, SA (5)
Mellergård, A (3)
Eriksson, SG (3)
Tomson, G (2)
Warsame, M (2)
Börjesson, L (2)
Larsson, Lars (1)
Gustafsson, LL (1)
Liljegren, Ronnie (1)
Bäckström, Joakim (1)
Eriksson, Sten, 1958 (1)
Zhou, J. (1)
Falk, E (1)
MASSELE, AY (1)
Frisch, M (1)
Storm, HH (1)
Borjesson, L. (1)
Ekbom, A (1)
Jansson, Mats (1)
Karlsson, J. (1)
Chew, M (1)
Eriksson, S. (1)
Berastegui, P. (1)
Eriksson, Tommy (1)
Melbye, M (1)
Kristenson, Margaret ... (1)
Askling, J (1)
Sorensen, P (1)
Käll, M. (1)
Hjalgrim, H (1)
Azad, A.K., Eriksson ... (1)
Azad, A.K., Eriksson ... (1)
Azad, Abul Kalam, 19 ... (1)
Azad, A.K., Mellergå ... (1)
Azad, A. K., S.- G. ... (1)
Azad, A. K. , S.-G. ... (1)
Azad, A.K., S.-G. Er ... (1)
Azad, A. K., S.- G. ... (1)
Ivanov, S.A. (1)
Rundlo?f, H. (1)
Ivanov, H (1)
Rundlöf, H (1)
Yunus, SM (1)
Gustafsson, L-L (1)
visa färre...
Lärosäte
Uppsala universitet (21)
Karolinska Institutet (3)
Kungliga Tekniska Högskolan (2)
Linköpings universitet (2)
Lunds universitet (2)
Göteborgs universitet (1)
visa fler...
Mittuniversitetet (1)
Chalmers tekniska högskola (1)
visa färre...
Språk
Engelska (31)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (12)
Teknik (1)
Medicin och hälsovetenskap (1)
Humaniora (1)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy