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Star formation and nuclear activity in close pairs of early-type galaxies
(2009-11-01)
We extract from the Sloan Digital Sky Survey a sample of 347 systems involving early-type galaxies separated by less than 30 kpc, in projection, and 500 km s−1 in radial velocity. These close pairs are likely progenitors ...
Average BER analysis of SCM-based free-space optical systems by considering the effect of IM3 with OSSB signals under turbulence channels
(2009-11)
In this paper, we derive the average bit error rate (BER) of subcarrier multiplexing (SCM)-based free space optics (FSO) systems using a dual-drive Mach-Zehnder modulator (DD-MZM) for optical single-sideband (OSSB) signals ...
The metallicity gradient as a tracer of history and structure : the Magellanic Clouds and M33 galaxies
(2009-11)
Context. The stellar metallicity and its gradient place constraints on the formation and evolution of galaxies. Aims. This is a study of the metallicity gradient of the LMC, SMC and M33 galaxies derived from their asymptotic ...
Migrant and Minority Learning Needs in the Communications Industry : Final report
(University of Hertfordshire, 2009-11)
This research was commissioned to examine the trade union learning needs of migrant workers in the communications industry. The key research questions focus on how far this learning meets the needs of migrant workers, ...
Plant defensins : defense, development and application
(2009-11)
Plant defensins are small, highly stable, cysteine-rich peptides that constitute a part of the innate immune system primarily directed against fungal pathogens. Biological activities reported for plant defensins include ...
Dependent Companions
(2009-11)
My primary concern will be to cast light upon the relation between animal guardians (‘pet owners’) and pets as a deep relation. I will proceed with a degree of indirectness by explaining why animal guardians can have an ...
The Valued People Project : Report of a Strategic Review of Educational Commissioning and Workforce Planning in Learning Disabilities
(NHS Education South Central, 2009-10-31)
Repression of SHP-1 expression by p53 leads to trkA tyrosine phosphorylation and suppression of breast cancer cell proliferation.
(2009-10-29)
The nerve growth factor (NGF) receptor, trkA, the tumour suppressor p53 and the phosphatase SHP-1 are critical in cell proliferation and differentiation. SHP-1 is a trkA phosphatase that dephosphorylates trkA at tyrosines ...
Diversity, Culture and Gender
(Karnac, 2009-10-19)
GALICS II : The [ α/Fe]-mass relation in elliptical galaxies
(2009-10-03)
Aims. We test whether the mass-and σ-[α/Fe] relations in the stellar populations of early-type galaxies can be reproduced by a cosmologically motivated assembly history for spheroids.Methods. We implement a detailed treatment ...