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- Jonsson, K, et al.
(författare)
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Collective excitations and band termination in Nb-85
- 1999
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Ingår i: Nuclear Physics A. - 0375-9474 .- 1873-1554. ; 645:1, s. 47-60
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Tidskriftsartikel (refereegranskat)abstract
- High-spin states in Nb-85 were studied using the GAMMASPHERE Ge detector array and the MICROBALL charged-particle detector system. Three gamma-ray cascades with collective rotational characteristics were observed. One of the bands exhibits a forking at the top, most likely reflecting the termination of one branch into a favoured non-collective, near spherical state. The data are interpreted in terms of cranked Strutinsky-type calculations.
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| 4. |
- Bennett, J. R. J., et al.
(författare)
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Measurements of intense beams of Li-11 from a tantalum foil target
- 1999
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Ingår i: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. - 0168-583X. ; 155:4, s. 515-517
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Tidskriftsartikel (refereegranskat)abstract
- The yields of Li-11 from a tantalum target, constructed from very thin foils, have been measured at ISOLDE and found to be an order of magnitude greater than those previously measured for a standard roll foil target. The modifications to the existing target designs were based on theoretical modelling calculations. The tantalum foils are 2 mu m thick and the target mass is only one tenth of normal foil targets. (C) 1999 Elsevier Science B.V. All rights reserved.
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| 7. |
- Thurfjell, L., et al.
(författare)
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Automatic Detection of Hypoperfused Areas in SPECT Brain Scans
- 1998
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Ingår i: IEEE Transactions on Nuclear Science. - : Institute of Electrical and Electronics Engineers (IEEE). - 0018-9499 .- 1558-1578. ; 45:4, s. 2149-2154
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Tidskriftsartikel (refereegranskat)abstract
- Describes a method for automatic identification of areas with perfusion changes in SPECT brain images. An intersubject registration technique is used to stereotactically register images from a selected control group allowing for reference images to be created by averaging the subjects image data. An individual SPECT brain scan can be brought into registration with the reference image and comparison to the normal reference group can be made by subtracting the two volumes. Furthermore, since the variance in the reference group is known, a z-score image or an image coded in standard deviations, can be computed. The SPECT reference volume is defined in the same coordinate system as a brain atlas, and anatomical labeling of areas of interest is possible. The authors show results from the creation of an average image based on 11 individuals and from its comparison with pathological cases
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| 10. |
- Ahlstrom, R., et al.
(författare)
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School children's preferences for food combinations
- 1990
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Ingår i: Food Quality and Preference. - 0950-3293 .- 1873-6343. ; 2:3, s. 155-165
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Tidskriftsartikel (refereegranskat)abstract
- Students from the 4th, 8th and 11th grades (N = 177) expressed their opinions as to which foodstuffs belong together in a meal. They did this by selecting and grouping cards that depicted the names and pictures of 25 foodstuffs typically offered in their school lunches. Subjects were allowed to create up to 10 different meals under one of four instructions. The cards were dispensed from a specially designed box that could hold single or multiple copies of each food item. Younger students created significantly more meals with few components than did the older students. The types of foodstuffs selected and their groupings were highly similar across grades and for both boys and girls. The meals tended to correspond to those actually available in the school lunch program, but more than 50% of the creations were unique in that each of them was produced by one or two students. These findings suggest that school nutritionists and administrators should strive for maximum variety in their lunch menus. © 1991.
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