| 1. |
- Mason, P, et al.
(author)
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Octupole signatures in Ba-124,Ba-125
- 2005
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In: Journal of Physics G. - : IOP Publishing. - 0954-3899 .- 1361-6471. ; 31:10, s. S1729-S1733
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Journal article (peer-reviewed)abstract
- The gamma decay of the nuclei Ba-121,Ba-125 has been investigated with the EUROBALL array, using the reaction Ni-64+Ni-64 at E-beam = 255 and 261 MeV. Six new E1 transitions have been found in the nucleus Ba-125, suggesting a significant role of octupole correlations in the origin of its parity doublets. The J(pi) = 3(-) level of the nucleus Ba-124 has been identified for the first time. Its excitation energy is in very good agreement with a prediction based on a microscopic model including octupole interactions.
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| 2. |
- Rana, A., et al.
(author)
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An edge services framework (esf) for egee, lcg, AND osg
- 2006
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Conference paper (peer-reviewed)abstract
- We report on first experiences with building and operating an Edge Services Framework (ESF) based on Xen virtual machines instantiated via the Workspace Service available in Globus Toolkit, and developed as a joint project between EGEE, LCG, and OSG. Many computing facilities are architected with their compute and storage clusters behind firewalls. Edge Services are instantiated on a small set of gateways to provide access to these clusters via standard grid interfaces. Experience on EGEE, LCG, and OSG has shown that at least two issues are of critical importance when designing an infrastructure in support of Edge Services. The first concerns Edge Service configuration. It is impractical to assume that each virtual organization (VO) using a facility will employ the same Edge Service configuration, or that different configurations will coexist easily. Even within a VO, it should be possible to run different versions of the same Edge Service simultaneously. The second issue concerns resource usage: since Edge Services may become a bottleneck to a site, it is essential that an ESF be able to effectively arbitrate resource usage (e.g., memory, CPU, and networking) among different VOs. By providing virtualization on the level of instruction set architecture, virtual machines allow configuration of independent software stacks for each VM executing on a resource. Modern implementations of this abstraction are extremely efficient and have outstanding fine-grained enforcement capabilities. To securely deploy virtual machines, we use the Workspace Service from the Globus Toolkit, which allows a VO administrator to dynamically launch appropriately-configured system images. In addition, we are developing a library of such images, reflecting the needs of presently participating communities ATLAS, CMS, and CDF. We will report on first experiences building and operating this Edge Services Framework.
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| 3. |
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| 4. |
- Andgren, Karin, et al.
(author)
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Low-spin collective behavior in the transitional nuclei Mo-86,Mo-88
- 2007
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In: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 76:1, s. 014307-
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Journal article (peer-reviewed)abstract
- Low-spin structures in Mo-86,Mo-88 were populated using the Ni-58(Ar-36, x alpha yp) heavy-ion fusion-evaporation reaction at a beam energy of 111 MeV. Charged particles and gamma rays were emitted in the reactions and detected by the DIAMANT CsI ball and the EXOGAM Ge array, respectively. In addition to the previously reported low-to-medium spin states in these nuclei, new low-spin structures were observed. Angular correlation and linear polarization measurements were performed in order to unambiguously determine the spins and parities of intensely populated states in Mo-88. Quasiparticle Random Phase Approximation (QRPA) calculations were performed for the first and second excited 2(+) states in Mo-86 and Mo-88. The results are in qualitative agreement with the experimental results, supporting a collective interpretation of the low-spin states for these transitional nuclei.
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| 5. |
- Rana, A.K.M. Masud, et al.
(author)
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The impact of health education in managing self-reported arthritis-related illness among elderly persons in rural Bangladesh
- 2008
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In: Health Education Research. - Oxford : Oxford University Press. - 0268-1153 .- 1465-3648. ; 23:1, s. 94-105
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Journal article (peer-reviewed)abstract
- This study examines the impact of health education on prevalenceof and expenditure on treatment of self-reported arthritis-relatedillness among elderly persons in rural Bangladesh. An interventionstudy was conducted, including 1135 elderly persons (60 years)from eight randomly selected villages, four each of an interventionand a control area. The analyses include 839 elderly personswho participated in both pre- and post-intervention surveys(intervention area: n = 425, control area: n = 414). Participantsof the intervention area were further categorized as compliant(n = 315) and non-compliant (n = 110) based on adherence tothe intervention instructions. The intervention that lastedfor 15 months comprised home-based physical exercise, dietaryinstructions and other aspects of management. Results show thatalthough there was no significant difference in self-reportedarthritis-related illness between the compliant and non-compliantgroups at baseline, it was significantly lower in the compliantgroup (71%) at post-intervention compared with the non-compliant(81%). Related monthly expenditure on treatment was significantlyreduced in the compliant group (from Taka 104 to Taka 52) butnot in the other two groups. Logistic regressions further showedthat the control group had a higher probability of increasedtreatment-related expenditure compared with the compliant group(OR 2.0, 95% CI 1.4–2.8).
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| 6. |
- Kindlundh-Högberg, Anna M S, et al.
(author)
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Extensive neuroadaptive changes in cortical gene-transcript expressions of the glutamate system in response to repeated intermittent MDMA administration in adolescent rats
- 2008
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In: BMC Neuroscience. - : Springer Science and Business Media LLC. - 1471-2202. ; 9, s. 39-
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Journal article (peer-reviewed)abstract
- BACKGROUND: Many studies have focused on the implication of the serotonin and dopamine systems in neuroadaptive responses to the recreational drug 3,4-methylenedioxy-metamphetamine (MDMA). Less attention has been given to the major excitatory neurotransmitter glutamate known to be implicated in schizophrenia and drug addiction. The aim of the present study was to investigate the effect of repeated intermittent MDMA administration upon gene-transcript expression of the glutamate transporters (EAAT1, EAAT2-1, EAAT2-2), the glutamate receptor subunits of AMPA (GluR1, GluR2, GluR3), the glutamate receptor subunits of NMDA (NR1, NR2A and NR2B), as well as metabotropic glutamate receptors (mGluR1, mGluR2, mGluR3, mGluR5) in six different brain regions. Adolescent male Sprague Dawley rats received MDMA at the doses of 3 x 1 and 3 x 5 mg/kg/day, or 3x vehicle 3 hours apart, every 7th day for 4 weeks. The gene-transcript levels were assessed using real-time PCR validated with a range of housekeeping genes. RESULTS: The findings showed pronounced enhancements in gene-transcript expression of GluR2, mGluR1, mGluR5, NR1, NR2A, NR2B, EAAT1, and EAAT2-2 in the cortex at bregma +1.6. In the caudate putamen, mRNA levels of GluR3, NR2A, and NR2B receptor subunits were significantly increased. In contrast, the gene-transcript expression of GluR1 was reduced in the hippocampus. In the hypothalamus, there was a significant increase of GluR1, GluR3, mGluR1, and mGluR3 gene-transcript expressions. CONCLUSION: Repeated intermittent MDMA administration induces neuroadaptive changes in gene-transcript expressions of glutamatergic NMDA and AMPA receptor subunits, metabotropic receptors and transporters in regions of the brain regulating reward-related associative learning, cognition, and memory and neuro-endocrine functions.
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| 7. |
- Mostaghel, Rana
(author)
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Integrated supply chain strategy, competition capabilities and firm performance : investigating adoption of enterprise systems within Swedish service firms
- 2009
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Doctoral thesis (other academic/artistic)abstract
- Competition among service firms has become increasingly intense since the number of service firms has grown tremendously in recent decades. Managers in search of ingredients for competition capabilities have found supply chain integration beneficial. True supply chain integration is only possible through the use of enterprise systems. However, the impact of the adoption of enterprise systems in service firms has not been examined thoroughly. Thus, there is a pronounced need for academic research in this area. Accordingly, the purpose of this dissertation is to investigate the adoption of enterprise systems, supply chain integration, competition capabilities, and firm performance in service firms. Based on the literature review, a proposed research model and six hypotheses were developed. A paper-based mail survey resulted in 233 complete and usable responses from Swedish service firms, at their major service level, which resulted in a response rate of 63%. The majority of the respondents were wholesale trades. The hypotheses were tested using structural equation modeling. In addition, the moderating and mediating effects were tested.The results revealed that an increase in anticipated benefits and access to new markets leads to the adoption of enterprise systems. Further, the technology plays a significant role in supply chain integration, and improving that integration enhances competition capabilities. Moreover, the findings demonstrated that competition capabilities relate significantly and positively to firm performance. Finally, it was found that enterprise systems do not have a direct relationship with firm performance; however, their relationship was mediated by supply chain integration and competition capabilities.Thus, it is suggested that service sectors managers who wish to achieve superior competition position in the marketplaces and trades, consider integration with their supply chain partners. In this regard, the adoption of enterprise systems facilitates supply chain integration. Finally, managers need to know that while enterprise systems do not directly improve firm performance, they impact supply chain integration and competition capabilities.
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