The impacts of new A8 migration in Leeds

New arrivals from Eastern Europe have made regular headlines in the popular press in recent times, not only for the unprecedented magnitude of the flows involved, but also for their impacts – positive and negative – on regions and localities up and down the country. This paper reports on a recently completed research project aimed at finding out more about A8 migrants in Leeds

Studies of interactive plasma processes in the polar cusp

Progress during the reporting period is presented. Several distinctly different areas of research are presently being pursued: (1) studies of the thermal structure of polar outflows; (2) Prognoz data analysis; and (3) Ulysses Jupiter encounter

Studies of interactive plasma processes in the polar cusp

The final report for NAGW-1657 (SwRI Project 15-2783) is presented. Several distinctly different areas of research are discussed: (1) studies of the thermal structure of polar outflows; (2) Prognoz-8 data analysis; and (3) the Ulysses Jupiter encounter

Bremsstrahlung x rays from Jovian auroral electrons

In a recent paper by D. D. Barbosa, it is argued that electron bremsstrahlung is the most likely source of the auroral x-ray emissions that have been observed at Jupiter. Barbosa bases his argument on observational and theoretical studies of the production of secondary electrons in the Earth's aurora. It is argued here that Barbosa's interpretation is flawed because it ignors the constraint that the primary electron distribution parameters place on the parameters for the secondary electron distribution. As a result, Barbosa's postulated secondary electron fluxes are over three orders of magnitude greater than the theory of auroral electrons permits

The experiences of accession 8 migrants in England : motivations, work and agency

Drawing on a recently completed qualitative study in a northern English city, this paper explores motivations and experiences of Accession 8 (A8) migrants who have entered the United Kingdom following the expansion of the European Union in 2004. The paper considers commonalities and differences among the group of migrants routinely referred to as A8 migrant workers/labourers. Diversity is apparent in three particular respects: first, the motivations and forms of movement undertaken; second, their experiences of work within the UK paid labour market; and third, the extent to which the act and experience of migration offers new individual and collective opportunities and potentially opens up spaces for people to negotiate structural constraints and reconfigure aspects of their identity

‘Good relations’ among neighbours and workmates? The everyday encounters of Accession 8 migrants and established communities in urban England

Drawing on data generated in a recently completed qualitative study in a northern, English city, this paper explores the everyday social encounters of Accession 8 (A8) migrants who entered the UK following the expansion of the European Union in 2004. A number of options from permanent residence in another Member State on the one hand, to more fleeting circulatory and multiple short-term moves on the other, now exist for these new European citizens. The relatively short-term and temporary residence of some A8 migrants calls into question the focus of much UK government policy, which emphasises the need for migrants to integrate into diverse yet cohesive communities. Against this backdrop, the aim of this paper is two-fold. First, it considers the somewhat different character of A8 migration (encompassing a spectrum from permanency to temporariness) and what this means for routine experiences of mixing between new migrants and established host communities. Second, the paper explores such interactions in terms of ‘everyday encounters’ in both neighbourhood and work spaces and asks whether such spatio-temporal practices and experiences enhance or inhibit the building of ‘good relations’ in a multicultural city

Lyman alpha line shapes from electron impact H2 dissociative processes in the Jovian auroral zone

Over the past two years several Lyman alpha line profile spectra of Jupiter were obtained using the International Ultraviolet Explorer (IUE) telescope. Several different regions of the planet were observed including the auroral zone, the low and mid latitudes, and the equatorial region which includes the Lyman alpha bulge region. These results have presented a very interesting picture of atomic hydrogen on Jupiter with explanations that range from ion outflow in the auroral zone to large thermospheric winds at low and mid latitudes. New data are needed to address the outstanding questions. Almost certainly, high resolution spectra from the Hubble Space Telescope will play a role in new observations. Better data also require better models, and better models require new laboratory data as inputs. The purpose of this program is two-fold: (1) to introduce a method by which new laboratory electron impact measurements of H2 dissociation can be used to calculate both the slow and fast H(S-2) and H(P-2) fragments in an H2 atmosphere; and (2) to determine the predicted Lyman alpha line shape that would result from electron impact production of these dissociative fragments in the Jovian auroral zone

Beluga, Delphinapterus leucas, Group Sizes in Cook Inlet, Alaska, Based on Observer Counts and Aerial Video

Belugas, Delphinapterus leucas, groups were videotaped concurrent to observer counts during annual NMFS aerial surveys of Cook Inlet, Alaska, from 1994 to 2000. The videotapes provided permanent records of whale groups that could be examined and compared to group size estimates ade by aerial observers.Examination of the video recordings resulted in 275 counts of 79 whale groups. The McLaren formula was used to account for whales missed while they were underwater (average correction factor 2.03; SD=0.64). A correction for whales missed due to video resolution was developed by using a second, paired video camera that magnified images relative to the standard video. This analysis showed that some whales were missed either because their image size fell below the resolution of hte standard video recording or because two whales surfaced so close to each other that their images appeared to be one large whale. The correction method that resulted depended on knowing the average whale image size in the videotapes. Image sizes were measured for 2,775 whales from 275 different passes over whale groups. Corrected group sizes were calcualted as the product of the original count from video, the correction factor for whales missed underwater, and the correction factor for whales missed due to video resolution (averaged 1.17; SD=0.06). A regression formula was developed to estimate group sizes from aerial observer counts; independent variables were the aerial counts and an interaction term relative to encounter rate (whales per second during the counting of a group), which were regressed against the respective group sizes as calculated from the videotapes. Significant effects of encounter rate, either positive or negative, were found for several observers. This formula was used to estimate group size when video was not available. The estimated group sizes were used in the annual abundance estimates