نتایج جستجو برای: modified fr ii
تعداد نتایج: 828936 فیلتر نتایج به سال:
Unified schemes for active galaxies: a clue from the missing Fanaroff-Riley type I quasar population
We link the lack of FR I type structure among quasars to the void of radio loud quasars below a critical disk luminosity of ∼ 10 erg/sec in the PG sample. We argue that the opening angle of the obscuring torus in radio loud quasars depends on the power of the central engine, approaching the jet’s beaming angle near the FR I/FR II break. Consequently, low power radio quasars would either be clas...
BACKGROUND AND PURPOSE The purpose of this study was to evaluate safety and efficacy of the Solitaire FR device in the treatment of patients with acute ischemic stroke secondary to large artery occlusion. METHODS We conducted a retrospective study of consecutive patients presenting with acute ischemic stroke treated with Solitaire FR as the first-line device to restore blood flow in 6 experie...
For plants, the tradeoff between resource investment in defense and increased growth to out-compete neighbors creates an allocation dilemma. How plants resolve this dilemma, at the mechanistic level, is unclear. We found that Arabidopsis plants produced an attenuated defense phenotype under conditions of crowding and when exposed to far-red (FR) radiation, a light signal that plants use to dete...
Abstract We carried out Chandra, Hubble Space Telescope (HST), and Very Large Array observations of four MOJAVE blazars that have previously been classified as hybrid (FR I/II) in terms radio morphology but not total power. The motivation this study is to determine the X-ray emission mechanism jets, these being different FR I II jets. detected jet with sufficient signal noise two blazars, viz ....
We have used two monoclonal anti-murine T cell autoantibodies (SM3G11 and SM6C10) and multi-color immunofluorescence staining to resolve splenic CD4+ cells into four populations. Two of these populations (Fr. I and Fr. III, 35% and 10% of CD4+ cells) show mutually exclusive expression of these determinants and exhibit distinct functions. Fr. III secretes IL-4, but not IL-2 when activated by Con...
This paper proposes a modified non-dominated sorting genetic algorithm (NSGA-II) for a bi-objective location-allocation model. The purpose is to define the best places and capacity of the distribution centers as well as to allocate consumers, in such a way that uncertain consumers demands are satisfied. The objectives of the mixed-integer non-linear programming (MINLP) model are to (1) minimize...
Increased fructose concentration in diabetes mellitus causes fructation of several proteins. Here we have studied fructose-induced modifications of hemoglobin. We have demonstrated structural changes in fructose-modified hemoglobin (Fr-Hb) by enhanced fluorescence emission with excitation at 285 nm, more surface accessible tryptophan residues by using acrylamide, changes in secondary and tertia...
Recent investigations have shown that many parameters and assumptions made in the application of spectral ageing models to FR-II radio galaxies (e.g. injection index, uniform magnetic field, non-negligible cross-lobe age variations) may not be as reliable as previously thought. In this paper we use new VLA observations, which allow spectral curvature at GHz frequencies to be determined in much ...
a Université de Poitiers, CeRCA CNRS, UMR 7295, MSHS – Bâtiment A5 – 5, rue Théodore Lefebvre – 86000 POITIERS – France [email protected] – [email protected] b Université Paris Ouest Nanterre La Défense, CHArt UPO EA 4004 – 200, avenue de la République 92001 Nanterre Cedex – France [email protected] c Université Toulouse II – Le Mirail, Octogone-ECCD EA 41565, al...
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