Nilsson levels

The Nilsson model is able to predict the ground state and low-lying states of deformed odd A nuclei. Figure 6.18 is a more detailed picture of how the energies of the Nilsson levels vary as a function of the deformation parameter 32 for the... 

Strutinsky developed an extension of the liquid drop model which satisfactorily explains the fission isomers and asymmetric fission. For such short half-lives the barrier must be only 2-3 MeV. Noting the manner in which the shell model levels vary with deformation ( 11.5, the "Nilsson levels"), Strutinsky added shell corrections to the basic liquid-drop model and obtained the "double-well" potential energy curve in Figure 14.14b. In the first well the nucleus is a spheroid with the major axis about 25 % larger than the minor. In the second well, the deformation is much larger, the axis ratio being about 1.8. A nucleus in the second well is metastable (i.e. in isomeric state) as it is unstable to y-decay to the first well or to fission. Fission from the second well is hindered by a 2 - 3 MeV barrier, while from the first well the barrier is 5 - 6 MeV, accounting for the difference in half-lives. 

Bjomeholm O, Nilsson A, Tillborg H, Bennich P, Sandell A, Hemnas B, Puglia C, Martensson N. 1994. Overlayer stmcture from adsorbate and substrate core level binding energy shifts CO, CCH3 and O on Pt(lll). Surf Sci 315 L983-L989. 

G4. Gardlund, B., Sjolin, J., Nilsson, A., Roll, M., Wickerts, C.-J., and Wretlind, B., Plasma levels of cytokines in primary septic shock in humans Correlation with disease severity. J. Infect. Dis. 172,296-301 (1995). 

In the absence of hormone, the three-dimensional configuration of the receptor favors binding to corepressors present in the cell nucleus. The interaction is produced at the level of zipper-type sequences of leucines (-L-X-X-L-), present in the corepressors, with the LBD of the receptor. This has a structure that is complementary to the leucine zipper, which remains accessible while the receptor itself does not bind to the hormone (Gruber et al. 2002 Nilsson et al. 2001). 

Sundell, I. B., Nilsson, T. K., Hallmans, G., Hellsten, G., and Dahlen, G. H., Interrelationships between plasma levels of plasminogen activator inhibitor, tissue plasminogen activator, lipoprotein (a) and established cardiovascular risk factors in a North Swedish population. Atherosclerosis (Shannon, Irel.) 80, 9-16 (1989). 

Four different methods (vapour-phase acetylation using acetic anhydride, acetylation using ketene gas, liquid phase acetylation using acetic anhydride/xylene, or neat acetic anhydride) were used to acetylate pine wood chips to a variety of WPGs for the production of MUF-bonded particleboards (Nilsson etal., 1988). Composite boards were exposed to unsterile soil in fungal cellar tests. Boards made from ketene acetylated chips were not found to be resistant to decay at the maximum WPG level achieved (17 %) with a liquid acetic anhydride modification, no decay was recorded at a WPG level of c. 18 % after 12 months exposure, whereas with a vapour-phase treatment at the same WPG, evidence for decay was found. 

It has been reported that toxins (BaP, TCDD) are able to disrupt the normal vitamin A metabolism and interact with vitamin A metabolizing enzymes (LRAT, REH) in different tissues (Hanberg et al, 1998 Nilsson et al, 2000). In limgs, intestine, adrenals, and liver, it has been well established that BaP and TCDD affect these tissue stores of vitamin A and cause decreased levels of vitamin A (Biesalski and Stofft, 1992 Nilsson et ah, 2000). 

Hundreds of deceptive orchid species use odor and other cues to mimic general and specific floral food sources, oviposition sites, and female insects (Gill, 1989 Nilsson, 1992). Moya and Ackerman (1993) observed species-level qualitative and... 

Analyze the following level schemes in terms of the collective and Nilsson models ... 

Fig.l. Single-particle levels for protons and neutrons in the A=100 region for the modified oscillator potential of the Nilsson model as a function of prolate deformation. 

Fig.3. Comparison of the experimental distribution of Rb decay with RPA shell model predictions (middle part) involving different odd-particle Nilsson states lying near the Fermi level (left part). In the right part, the corresponding T1/2 and pn values are listed.

Tab.l. Comparison of experimental J /2 and Pn for Sr to shell model predictions for different odd-particle Nilsson orbitals near the Fermi level... 

Nilsson diagram for protons with tc = 0.067 and m 0.53 BCS model Fermi level for Y with Ap 0.69 MeV is indicated by dots. 

Nilsson et al. (1998) reported on the temporal variation of phenolics and a dihydrostilbene, batatasin III, in Empetrum hermaphroditum leaves. These authors reported that first year shoots produced higher levels of phenolics than older tissues. High phenolic concentration was maintained through the second year, but it declined afterwards. However, the phytotoxicity of E. hermaphroditum extracts was related more to batatasin III than phenolics. 

Wardle, D.A., Nilsson, M.C., Gallet, C., Zackrisson, O. An ecosystem-level perspective of alleloapthy. Biol Rev Cambridge Philosoph Soc 1998 73 305-319. 

M. Arnadottir, H. Thysell, and P. Nilsson-Ehle, Lipoprotein levels and post heparin lipase activities in kidney transplant recipients ciclosporin-versus nonciclosporin-treated patients, Am. J. Kidney Dis. 77 700-717 (1991). 

Feed rate controlbased on the carbon dioxide evolution rate (CER) has been shown to be an efficient method. Taherzadeh et al. (14) increased the feed rate stepwise as long as the relative increase in CER was at least 50% of the relative increase in feed rate. Nilsson et al. (13) developed the method further and used the derivative of the CER to control the feed rate. This control principle was very successful in keeping the hexoses at low levels and preventing inhibition from toxic compounds and was the chosen control algorithm in the present work. 

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