Search results for "GAM"
showing 10 items of 5334 documents
Long-term monitoring of mrk 501 for its very high energy γ emission and a flare in 2011 october
2012
"As one of the brightest active blazars in both X-ray and very high energy γ -ray bands, Mrk 501, is very useful for" "physics associated with jets from active galactic nuclei. The ARGO-YBJ experiment has monitored Mrk 501 for γ - rays above 0.3 TeV since 2007 November. The largest flare since 2005 was observed from 2011 October and lasted until about 2012 April. In this paper, a detailed analysis of this event is reported. During the brightest γ -ray flaring episodes from 2011 October 17 to November 22, an excess of the event rate over 6σ is detected by ARGO-YBJ in the direction of Mrk 501, corresponding to an increase of the γ -ray flux above 1 TeV by a factor of 6.6 ± 2.2 from its steady…
Die Herausbildung von Zufriedenheits-urteilen bei Alternativenbetrachtung
1999
Traditional elements of competitive differentiation are declining. As industries and firms worldwide face increasing competition, slower growth rates, and price pressures, greater attention is being placed on customer satisfaction. However the research in satisfaction never consider alternatives, when customer satisfaction is formed. It has been the approach of this paper to present an extension for this circumstance. Therefor the regret theory, a diversion of the expectation utility theory, is used to explain the phenomena. According to this theory, each outcome has associated with it the evaluation of the difference between the outcome and the outcome that would have been received had a d…
Want to Impact Physical, Technical, and Tactical Performance during Basketball Small-Sided Games in Youth Athletes? Try Differential Learning Beforeh…
2020
This study aimed to analyze the acute effect of small-sided games, based on differential learning, on the physical, technical, and positioning performance of young basketball players. Eight basketball players under 13 (U13) participated in this study. A total of eight sessions involving half-court small-sided games (4 sets ×
Utility-based resource allocations in multi-hop wireless networks
2011
It is well known that CSMA (Carrier Sense Multiple Access) protocols exhibit very poor performance in case of multi-hop transmissions, because of inter-link interference due to imperfect carrier sensing. Since ad-hoc networks based on multihop packet deliveries are becoming more and more common in different application and networking scenarios, different medium access control extensions are currently considered for improving the channel utilization efficiency. In this paper, we propose a simple approach based on preallocating temporal slots in which different sets of nodes are allowed to contend for the channel access, which can significantly improve CSMA performance with limited signaling …
Engineering Self-adaptive Systems: From Experiences with MUSA to a General Design Process
2019
Designing and developing complex self-adaptive systems require design processes having specific features fitting and representing the complexity of these systems. Changing requirements, users’ needs and dynamic environment have to be taken in consideration, also considering that, due of the self-adaptive nature of the system, the solution is not fixed at design time but it is a run-time outcome. Traditional design approach and life cycles are not suitable to design software systems where requirements continuously change at runtime. A new design process paradigm is needed to design such systems. In this Chapter, we present a retrospective analysis based on three projects developed in the las…
Aminobisphosphonates as new weapons for gammadelta T Cell-based immunotherapy of cancer.
2008
BACKGROUND: Activated V gamma 9 V delta 2 T cells are able to kill most tumour cells because of recognition by T cell receptor and natural killer receptors. OBJECTIVE: We discuss the possibility that the intentional activation of gammadelta T cells in vivo by aminobisphosphonates may represent a promising target for the design of novel and highly innovative immunotherapy in cancer patients. METHODS: The antitumoral effects of gammadelta T cells both in vitro and in vivo have been demonstrated suggesting a new therapeutic approach for translation into the clinical setting. RESULTS/CONCLUSION: V gamma 9 V delta 2 T lymphocytes represent a particularly interesting target for immunotherapeutic …
Factors psicosocials rellevants en la violència de preadolescents i adolescents escolaritzats
2010
A pesar de la considerable evidència acumulada sobre els efectes de la violència en els mitjans, encara hi ha controvèrsia sobre el tema. La comunitat científica debat la influència de la TV i els videojocs en el comportament dels subjectes (vid. Kids, TV viewing, andaggressivebehavior, Science (Letters) 297, 49-50, 2002). Aquells que s'oposen al fet que la TV i els videojocs tenen influència sobre el comportament agressiu, defensen que la causalitat no es pot establir tan fàcilment, ja que als individus violents els agradarà més veure actes agressius en TV i que estiguen presents en els videojocs. En l'actual estudi realitzat amb escolars preadolescents i adolescents 'amb una grandària de …
Per il «Doligamus» di Adolfo di Vienna: le “fabulae” VIII e IX, ovvero alcune variazioni sul tema
2018
Il «Doligamus», opera latina in 342 distici elegiaci e 7 esametri leonini degli inizi del sec. XIV (1315), si inserisce pienamente nel filone di poesia misogina di origine clericale che ebbe grande diffusione durante il Medioevo. Il suo autore, Adolfo di Vienna, attinge alla tradizione degli "exempla" e del materiale favolistico per condannare, in nove "fabulae", il comportamento deplorevole delle donne, siano esse mogli infedeli o vecchie diaboliche. In questo lavoro, dopo una presentazione generale dell’autore e dell’opera, ci si sofferma sulle ultime due "fabulae" del «Doligamus», la VIII e la IX, delle quali vengono studiati e analizzati la trama, i modelli, lo stile, la lingua e, sopra…
Genetic proof for the transient nature of the Th17 phenotype
2010
IL-17-producing CD4(+) T cells (Th17) have been classified as a new T helper cell subset. Using an IL-17 fate mapping mouse strain, which genetically fixes the memory of IL-17 expression, we demonstrate that IL-17A/F-expressing T helper cells generated either in vitro or in vivo are not a stable T-cell subset. Upon adoptive transfer of IL-17F-reporter-positive Th17 cells to RAG-deficient or WT animals, encephalitogenic Th17 cells partially lose IL-17 expression and upregulate IFN-γ. Additionally, we show that Th1 cells can convert in vivo to IL-17A/IFN-γ-coexpressing cells in the mesenteric lymph nodes (mLN). Our data classify IL-17A and IL-17F as cytokines produced transiently in response …
Contribution of IL-17-producing {gamma}{delta} T cells to the efficacy of anticancer chemotherapy.
2011
IL-17 production by γδ T cells is required for tumor cell infiltration by IFN-γ–producing CD8+ T cells and inhibition of tumor growth in response to anthracyclines.