203 research outputs found
Measurement of an integral of a classical field with a single quantum particle
A method for measuring an integral of a classical field via local interaction
of a single quantum particle in a superposition of 2^N states is presented. The
method is as efficient as a quantum method with N qubits passing through the
field one at a time and it is exponentially better than any known classical
method that uses N bits passing through the field one at a time. A related
method for searching a string with a quantum particle is proposed.Comment: 3 page
ROM-based computation: quantum versus classical
We introduce a model of computation based on read only memory (ROM), which
allows us to compare the space-efficiency of reversible, error-free classical
computation with reversible, error-free quantum computation. We show that a
ROM-based quantum computer with one writable qubit is universal, whilst two
writable bits are required for a universal classical ROM-based computer. We
also comment on the time-efficiency advantages of quantum computation within
this model.Comment: 12 pages, 3 figures, minor corrections + section 5 substantially
change
The move to individualism by the Western Australian Education Department
Employment regulation amongst government school teachers in Western Australia has traditionally been characterised by a collectivist approach, with a major role played by the State School Teachers Union of Western Australia (SSTU). In 1993 a new framework for employment regulation characterised by an individualist approach was introduced when the Western Australian Government passed legislation reflecting the Government's preference for government school teachers to make use of workplace agreements. This paper describes both frameworks of employment regulation and provides an account of the current industrial relations dispute between the SSTU and the Western Australian Education Department.The SSTU has made the strategic decision to try to maintain a collectivist approach to employment regulation. It has indicated its intention to move out of the Western Australian industrial relations system and into the national, or federal, system by filing an application for federal award coverage to counter any move by the Western Australian Education Department to entice teachers onto workplace agreements. The authors point to a number of problems that the SSTU might encounter if the application for a federal award is successful. Given these problems, it may be appropriate that the SSTU accept the inevitable move to individualism and place itself in a strategic position to be a major player in the changing Western Australian industrial relations system. As a major player in the new system, the SSTU will be better able to argue in support of the principles of equity and fairness in its attempts to ensure the continuing quality of education delivered in government schools
Gender and Employment Structure Patterns in Australiaâs Retail Workforce: An Intra-industry Analysis
Challenging conditions in Australian retail pose a threat to its retail workforce and are expected to change the retail employment landscape. This prompts a need to develop a contemporary knowledge of the retail workforce, which has a higher incidence of insecure employment than the general workforce. This study investigates gender and employment-structure patterns between different sectors within the retail industry by analysing the variables of employment status and gender between 40 Australian and New Zealand Standard Industrial Classification (ANSIC) retail categories (for example groceries, clothing, automobiles, hardware, restaurants), using data from the âAustralia at Workâ survey. The results show that while overall women dominate employment in the retail sector, retail employment among women tends to be part-time and lower-skilled, while men tend to be in more physical, skilled, prestigious, and full-time positions. Societal gender expectations such as the breadwinner role for men and child caring for women are also identified
Localization of Multi-State Quantum Walk in One Dimension
We show analytically that particle trapping appears in a quantum process
called "quantum walk", in which the particle moves macroscopically correlating
to the inner states. It has been well known that a particle in the ``Hadamard
walk" with two inner states spreads away quickly on a line. In contrast, we
find one-dimensional quantum walk with multi-state in which a particle stays at
the starting point entirely with high positive probability. This striking
difference is explained from difference between degeneration of eigenvalues of
the time-evolution matrices.Comment: 4 pages RevTeX, 4 figures ep
Implications of the 'happy-performing managers' proposition
A seminal question in industrial/organisational psychology and management is revisited in this paper - do happy managers perform better than their miserable counterparts? The 'happy-productive worker' thesis has intrigued organisational researchers and practitioners for decades. Despite mixed empirical evidence from research, there is support in the literature for the notion that 'a happy worker is a good worker'. A variation on the enduring debate of the happiness-productivity theme is presented - the 'happy-performing managers' proposition. A study of Australian managers is reported to illustrate how aspects of affective wellbeing are associated with their performance. The emphasis was on investigating an aspect of human behaviour with the potential to enhance managerial performance. A contribution of this study was to provide qualified support for the 'happy-performing managers' proposition by linking managers' affective wellbeing and intrinsic job satisfaction with their contextual and task performance. Implications of these findings are considered. In particular, it is argued that the capacity of managers to develop emotional intelligence, so that they are more aware of the importance of positive and negative leadership styles has the potential to increase organisational productivity
Employee commitment in Westrail
A study conducted in Westrail, the Western Australian Government Railways revealed that three underlying attitudes influenced the three dimensions of commitment (to organisation, work and co-worker) measured in a survey. Achievement of personal and career goals, propensity to stay with the organisation, trust in senior management and positive view of change were shown to be linked with the commitment dimensions and the underlying factors (affective, cognitive and behavioural commitment). Education, union membership, age and tenure were also found to be significantly correlated with aspects of commitment. Large downsizings have occurred at Westrail in recent years and commitment among workers is low, as is trust in senior management. The formal communications system needs attention and there is a general view that recent changes have not been for the positive benefit of the organisation. Linking personal goal achievement to Westrail employment may help to resolve the problem of low morale and commitment
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