Data-driven Estimations of Z, W and Top Backgrounds

The Standard Model processes of W, Z and top quark production in association with jets constitute a major background to searches for Supersymmetry at the LHC. We describe recent work performed in the ATLAS Collaboration to estimate these backgrounds for a basic SUSY selection, and we discuss methods to derive them from the first ATLAS data.Comment: Update to use new ICHEP 2008 latex templat

Effects of Ostertagia circumcincta larvae and adult parasites on abomasal and intestinal tissues in sheep : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Physiology

Ostertagia circumcincta parasites infect the abomasum of sheep causing damage to the abomasal tissues and significant production losses to the sheep farming industry. Ingested larvae enter the gastric glands and emerge as adults which live in the abomasal lumen. The effect of adult parasites on the abomasum has not been systematically investigated. In the present study, sheep raised to be free of helminth parasites were given either adult O. circumcincta parasites via an abomasal cannula or larvae per os. Adult as well as larval O. circumcincta parasites stimulate hypergastrinaemia, a decreased abomasal pH and elevated serum pepsinogen concentrations. While the concentration of G cells did not change in the larval parasite infected sheep compared with the non-infected control sheep, the total number of G cells was increased due to an increase in mucosal thickness. There appeared to be fewer G cells present in the adult parasite infected sheep compared with the non-infected control sheep, which was most likely due to a depletion of their gastrin content due to overstimulation. The hypergastrinaemia observed during ostertagiasis is not due to a change in the ratio of G:D cells. The lumen dwelling adult O. circumcincta affect the mucosa of the abomasum resulting in an apparent inflammatory reaction, demonstrated by the presence of eosinophils and neutrophils in the lamina propria. Mucous production and/or secretion is also affected, shown by the presence of large mucus-secreting cells in the mucosa. The total wet weight of the abomasum/kg body weight is increased in sheep infected with O. circumcincta, with an increase in the total size of the abomasum. The larval parasites evoke a hyperplasia in both the antral and body mucosae with little change in cell size. In sheep infected with adult parasites, the thickness of the abomasal mucosa is increased in the body, but not the antrum. This increase is most likely due to hypertrophy. Either the larval O. circumcincta or the hypergastrinaemia have trophic effects on the upper duodenum, with an increased mucosal thickness which did not occur more distally. This did not occur in the adult parasite infected sheep. The larval parasites or hypergastrinaemia provoked a hyperplasia in the jejunal mucosa. This did not occur in the adult infected sheep. The larvae and adult parasites did not appear to exert a hypertrophic or hyperplastic effect on the ileum, caecum or colon. Those results indicate that adult O. circumcincta parasites have substantial effects on the ovine abomasum

Employee Involvment and Participation in the Organisational Change Decision: Illawarra and Australian Patterns.

This paper analyses the patterns of employee involvement in organisational change decisions using data from the 1995 Australian Workplace Industrial Relations Survey and a parallel survey conducted in the Illawarra Region of NSW in 1996. The initial results suggested that there appeared to be a stronger preference for mechanisms involving direct negotiations with employees in the Illawarra region than for Australia as a whole. This may be a reaction to the militant reputation of unions in that region. However, there was no evidence from the Illawarra survey that local union delegates or officials had more negative attitude to organisational change than employees directly affected by these changes.DECISION MAKING ; MANAGEMENT ; EMPLOYEE

The Industrialisation Process of Asian Small and Medium Firms

National governments throughout the Asia-Pacific Region have identified small and medium enterprises as an important source of economic growth and employment. In the past, SME business strategies have focused on production, relying on their subcontracting and sales contacts with large firms for technological innovation and marketing and on abundant domestic labour forces for comparative advantage. Recently, structural problems in the region arising from the Japanese recession, currency appreciation and rising labour costs have upset these relationships forcing SMEs to move offshore (DFI) to restore cost competitiveness and to upgrade their internal technological and organisational capacities to international standards in order to compete for contracts within more open, international markets. This paper analyses this process of change, analysing the development of SMEs within four Asian countries using a six stage evolutionary model. The majority of SMEs in these countries are still in the earlier second (dependency) or third (internalisation) stages. The more advanced SMEs have moved into the fourth (externalisation) stage, where firms develop independent technology and marketing capacities. To the extent that localisation (stage five) had occurred, it involved local embedded relationships which had limited scope for further internationalisation. Little evidence of regional integration or networking among SMEs was found.Asia-Pacific, industrialisation process, Asian small and medium enterprises

The Impact of Different HRM Regimes on Labour Productivity: National Results and a Regional Perspective

This paper uses AWIRS 95 and IRWIRS 96-7 data to test whether workplaces which used ‘soft’ versus ‘hard’ Human Resource Management (HRM) policies and practices experienced significant differences in labour productivity improvements. Generally, the results support the proposition that management attitudes, policies and practices which aim to develop workforce skills, commitment and motivation were positively associated with improvements in labour productivity. Very few ‘hard’ practices other than performance pay had the same effect. EEO/AA and maternity leave policies were strongly correlated with improved productivity.human resource management policies, labour productivity

More success than meets the eye: a challenge to critiques of the MBA. Possibilities for critical management education?

Management education generally, and MBA programmes in particular, have been persistently criticized for failing to speak adequately to management practice. One response to such criticisms has been to suggest a wider consideration of critical management education (CME). Drawing on research findings from an empirical study of MBA learning, the article argues that MBA learning can be seen as more valuable to the manager in practice than critics contend. Moreover, the learning which is valued resonates with both a critical understanding of management and critical accounts of the role of management education, suggesting that a covert form of CME may already be operating. We argue that further building on this understanding provides the potential for a more prominent CME. Specifically, we propose that the experience brought to and lived within the MBA programme provides an opportunity for `problematizing' accepted ways of making sense of the world

Key Skills: making connections between HE and the workplace

This paper draws on a recent research project into high-level key skills links between HE and employment. The project has worked with groups in several universities and companies to explore how the developmental model embedded in the QCA key skills national standards can be used to support learning and assessment of higher level (QCA levels 4 and 5) key skills. Employers increasingly value skills such as teamworking, communicating effectively with partners and customers, and being able to adapt to new situations and develop new capabilities. Within organisations individuals may be expected to move from project to project and job to job. They may be expected to identify their own particular training needs, work within the company business goals and develop their own individual skills portfolio to satisfy professional recognition requirements. HE currently appears to offer relatively little support or training to develop the key skills needed in such environments. As part of the project students in HE have used a framework of planning, monitoring progress, presenting outcomes and reviewing progress to develop their skills. The model encourages learners to recognise and articulate their own capabilities more clearly, and offers an assessment structure for profiling achievement. It is this 'meta-skills' approach that is used to bridge the gap between HE and employment by encouraging learners to be actively aware of the context in which they are currently situated, and to make connections with experience, skills and knowledge they have gained elsewhere. The paper presents some preliminary findings and comments from the project

Exploring MBA career success

Purpose – The purpose of this paper is to examine the meaning of career success in relation to the attainment of an MBA degree, for a group of experienced managers. In so doing, the paper aims to consider the adequacy of MBA career success, defined solely in terms of external criteria. Design/methodology/approach – A total of 36 in-depth interviews were undertaken with MBA alumni which sought to capture the individual's own account of their career success in relation to their MBA. The study utilised an inductive data analysis approach. Findings – The findings revealed a diversity of meanings given to MBA career success, with success generally being expressed in much broader terms than conventional notions of fast track career advancement. The salience of internal criteria for judging MBA career success is thus highlighted. The findings may be seen to further dispel the myth that MBA students are concerned exclusively with status and salary. Research limitations/implications – The study focuses on the experiences of graduates from only one MBA programme. Additionally, the study reports retrospective accounts of MBA career success, a longitudinal design would be advantageous. Practical implications – The demonstration of a plurality of career success provides potential advantage for business schools recruiting MBA students. Organisations can benefit from a wider understanding of MBA career success. Originality/value – The findings suggest that the value of the MBA encompasses more than fast track career success