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Articles 31 - 60 of 303
Full-Text Articles in Social and Behavioral Sciences
Contemporary Art, Craft And The Audience Management Report, Jennie A. Lawson
Contemporary Art, Craft And The Audience Management Report, Jennie A. Lawson
Amanda Lawson
No abstract provided.
Order-4 Quasi-Orthogonal Cooperative Communication In Stfc Mb-Ofdm Uwb, Zixuan Lin, Le Chung Tran, Farzad Safaei, Tadeusz A. Wysocki
Order-4 Quasi-Orthogonal Cooperative Communication In Stfc Mb-Ofdm Uwb, Zixuan Lin, Le Chung Tran, Farzad Safaei, Tadeusz A. Wysocki
Professor Farzad Safaei
Recently, cooperative communication and Space-Time-Frequency-Codes (STFCs) have been introduced into the Multiband OFDM Ultra-Wideband (MB-OFDM UWB) to improve the reliability, data rate and system capacity. This paper proposes a cooperative communication scheme for a four source node MB-OFDM UWB system using Quasi-Orthogonal STFCs, which is referred to as order-4 Quasi-Orthogonal Cooperative Communication Scheme (4-QOCCS). Simulation results show that the proposed 4-QOCCS provides significantly better error performance over the conventional MB-OFDM UWB and our order-2 Orthogonal Cooperative Communication Scheme (2-OCCS) using the Alamouti STFCs, and even better than the order-4 Orthogonal Cooperative Communication Scheme (4-OCCS), which we have been recently proposed, …
Political Connection And Managerial Entrenchment: Evidence From Ceo Turnovers In China, Jerry Cao, Xiaofei Pan, Meijun Qian, Gary G. Tian
Political Connection And Managerial Entrenchment: Evidence From Ceo Turnovers In China, Jerry Cao, Xiaofei Pan, Meijun Qian, Gary G. Tian
Gary Tian
Firms seek political connection by hiring politicians and ex-bureaucrats as top executives in China, especially in privately controlled firms. One unintended consequence of establishing political connection is management entrenchment. Political connected CEOs have smaller equity holding than CEOs without political background. Political connection significantly lowers the CEO turnover probability and turnover-performance sensitivity. Firm performance improves after political connected CEOs are replaced, particularly if replaced by new ones not politically connected. Overall, our findings suggest that political connection in association with management entrenchment destroys shareholder value, harms firm performance, and exacerbates corporate governance in emerging economies.
Industry Associations And Non-Competitive Behaviour In Australian Wool Marketing: Evidence From The Melbourne Woolbrokers' Association, 1890-1939, David Merrett, Simon Ville
Industry Associations And Non-Competitive Behaviour In Australian Wool Marketing: Evidence From The Melbourne Woolbrokers' Association, 1890-1939, David Merrett, Simon Ville
Simon Ville
From the 1890s the sale of Australian wool was organised through a series of regionally based associations of wool selling brokers and wool buyers. They engaged in cartel-type behaviour by price fixing and exclusive dealing. We ask the question whether the wool selling brokers exploited their monopoly power to the full in setting fees and charges paid by the growers and buyers. Association records provide data on the pricing structure and rationale for changes. We surmise that the existence of the cartel lifted prices above competitive levels. However, the pricing behaviour was moderated to a strong form of limit pricing.
Policing And The Responsibility To Protect In Oceania: A Preliminary Survey Of Policing Aid Programs In The 'Arc Of Responsibility', Charles M. Hawksley
Policing And The Responsibility To Protect In Oceania: A Preliminary Survey Of Policing Aid Programs In The 'Arc Of Responsibility', Charles M. Hawksley
Charles M Hawksley
This paper presents preliminary research about the donor aid programs that contribute to police-building in the `Arc of Responsibility' in the Pacific and Australia's `near-abroad'. It focuses on the capacity building projects that exist in Timor Leste and Solomon Islands with respect to police training. The two cases represent examples of exogenous state-building, situations in which the form and function of the state is to a great extent being dictated by outside actors. The international community provides different forms of assistance toward strengthening state capacity in the policing sector and this paper explores how police training programs and the deployment …
The Nubian Complex Of Dhofar, Oman: An African Middle Stone Age Industry In Southern Arabia, Jeffrey I. Rose, Vitaly I. Usik, Anthony E. Marks, Yamandu H. Hilbert, Christopher S. Galletti, Ash Parton, Jean Marie Geiling, Viktor Cerny, Mike W. Morley, Richard Roberts
The Nubian Complex Of Dhofar, Oman: An African Middle Stone Age Industry In Southern Arabia, Jeffrey I. Rose, Vitaly I. Usik, Anthony E. Marks, Yamandu H. Hilbert, Christopher S. Galletti, Ash Parton, Jean Marie Geiling, Viktor Cerny, Mike W. Morley, Richard Roberts
Richard G Roberts
Despite the numerous studies proposing early human population expansions from Africa into Arabia during the Late Pleistocene, no archaeological sites have yet been discovered in Arabia that resemble a specific African industry, which would indicate demographic exchange across the Red Sea. Here we report the discovery of a buried site and more than 100 new surface scatters in the Dhofar region of Oman belonging to a regionally-specific African lithic industry - the late Nubian Complex - known previously only from the northeast and Horn of Africa during Marine Isotope Stage 5, ~128,000 to 74,000 years ago. Two optically stimulated luminescence …
Carbon Dioxide Rebreathing In Respiratory Protective Devices: Influence Of Speech And Work Rate In Full-Face Masks, Carmen L. Smith, Jane L. Whitelaw, Brian Davies
Carbon Dioxide Rebreathing In Respiratory Protective Devices: Influence Of Speech And Work Rate In Full-Face Masks, Carmen L. Smith, Jane L. Whitelaw, Brian Davies
Faculty of Science, Medicine and Health - Papers: part A
Carbon dioxide (CO2) rebreathing has been recognised as a concern regarding respirator use and is related to symptoms of discomfort, fatigue, dizziness, headache, muscular weakness and drowsiness. Previous investigations are limited by small sample size and have not evaluated the relationship between CO2 inhalation and phonic respiration (breathing during speech) in respiratory protective devices (RPDs). A total of 40 workers trained in the use of RPDs performed a graded exercise test on a cycle ergonometer that increased in workload every 5 min. During the third minute of each stage, participants read aloud a prepared text. Measures of mixed expired CO2 …
Strategic Ambiguity And Ethical Actions, Ah Ba Sim, Mario Fernando
Strategic Ambiguity And Ethical Actions, Ah Ba Sim, Mario Fernando
Ah Ba Sim
Ethics and moral obligations of management are an integral component in corporate strategy and support is now increasing for the proposition that ethics should be central, not peripheral, to the overall management of the firm. Within this context, we examine the influence of strategic ambiguity on the ethical actions of corporations. Strategic ambiguity is a prevalent and valuable tactic in organizational strategy making. However, the influence of strategic ambiguity on organizational strategy making and communication may lead to unethical executive behaviour and action. This paper develops a framework to examine the role of strategic ambiguity in ethical action, using James …
Integrated Seat And Suspension Control For A Quarter Car With Driver Model, Haiping Du, Weihua Li, Nong Zhang
Integrated Seat And Suspension Control For A Quarter Car With Driver Model, Haiping Du, Weihua Li, Nong Zhang
Professor Weihua Li
In this paper, an integrated vehicle seat and sus pension control strategy for a quarter car with driver model is proposed to improve suspension performance on driver ride comfort. An integrated seat and suspension model that includes a quarter-car suspension, a seat suspension, and a 4-degree-of freedom (DOM) driver body model is presented first. This in1 tegrated model provides a platform to evaluate ride comfort 1performance in terms of driver head acceleration responses under typical road disturbances and to develop an integrated control of seat and car suspensions. Based on the integrated model, an H∞ state feedback controller is designed …
Contemporary Korean Cinema: Challenges And The Transformation Of ‘Planet Hallyuwood’, Brian Yecies, Ae-Gyung Shim
Contemporary Korean Cinema: Challenges And The Transformation Of ‘Planet Hallyuwood’, Brian Yecies, Ae-Gyung Shim
Dr Brian Yecies
This article examines how the South Korean cinema has undergone a transformation from an ‘antiquated cottage industry’ in the 1980s into a thriving international cinema – albeit with a host of new challenges and tensions – in the ‘post-boom’ years of the 2000s right up to the present. Its analysis of film culture in the 1980s sets the stage for the Korean cinema’s transnational development over the last decade, and points to a longer historical continuum involving the ‘re-emergence’ in the 1980s of a ‘cinema of quality’ that was marked by widespread critical acclaim. Additionally, this article canvasses the key …
Contemporary Korean Cinema: Challenges And The Transformation Of ‘Planet Hallyuwood’, Brian Yecies, Ae-Gyung Shim
Contemporary Korean Cinema: Challenges And The Transformation Of ‘Planet Hallyuwood’, Brian Yecies, Ae-Gyung Shim
Dr Brian Yecies
This article examines how the South Korean cinema has undergone a transformation from an ‘antiquated cottage industry’ in the 1980s into a thriving international cinema – albeit with a host of new challenges and tensions – in the ‘post-boom’ years of the 2000s right up to the present. Its analysis of film culture in the 1980s sets the stage for the Korean cinema’s transnational development over the last decade, and points to a longer historical continuum involving the ‘re-emergence’ in the 1980s of a ‘cinema of quality’ that was marked by widespread critical acclaim. Additionally, this article canvasses the key …
The Extraordinary In The Ordinary: Kate Llewellyn's Self Portrait Of A Lemon, Anne A. Collett
The Extraordinary In The Ordinary: Kate Llewellyn's Self Portrait Of A Lemon, Anne A. Collett
Anne Collett
This essay is an examination of the place and meaning of the lemon in particular, and food in general, in the poetry and prose of popular Australian author Kate Llewellyn. It focuses on the relationship between food, memory and self-portraiture
Terrestrial Hermit Crabs (Anomura: Coenobitidae) As Taphonomic Agents In Circum-Tropical Coastal Sites, Katherine Szabo
Terrestrial Hermit Crabs (Anomura: Coenobitidae) As Taphonomic Agents In Circum-Tropical Coastal Sites, Katherine Szabo
Katherine A Szabo
Hermit crabs are ever alert for more suitable shells to inhabit, but what this may mean for coastal shell middens has rarely been considered. Here, the impact of the most landward-based of hermit crab families, the tropical Coenobitidae, upon archaeological shell-bearing deposits is assessed using a case study: the Neolithic Ugaga site from Fiji. At Ugaga, hermit crabs were found to have removed the majority of shells from the midden and had deposited their old, worn shells in return. The behavioural ecology of genus Coenobita suggests a mutualistic interaction whereby humans make available shell and food resources to hermit crabs, …
Are Low-Skill Public Sector Workers Really Overpaid? A Quasi-Differenced Panel Data Analysis, Peter Siminski
Are Low-Skill Public Sector Workers Really Overpaid? A Quasi-Differenced Panel Data Analysis, Peter Siminski
Faculty of Commerce - Papers (Archive)
Public–private sectoral wage differentials have been studied extensively using quantile regression techniques. These typically find large public sector premiums at the bottom of the wage distribution. This may imply that low skill workers are ‘overpaid’, prompting concerns over efficiency. We note several other potential explanations for this result and explicitly test whether the premium varies with skill, using Australian data. We use a quasi-differenced Generalized Method of Moments (GMM) panel data model which has not been previously applied to this topic, internationally. Unlike other available methods, this technique identifies sectoral differences in returns to unobserved skill. It also facilitates a …
'Reel Love' Across Ethnic Boundaries? The Extent And Significance Of Inter-Ethnic Intimacy In Australian Cinema, Natascha Klocker, Elyse Stanes
'Reel Love' Across Ethnic Boundaries? The Extent And Significance Of Inter-Ethnic Intimacy In Australian Cinema, Natascha Klocker, Elyse Stanes
Faculty of Science, Medicine and Health - Papers: part A
National cinemas play an important role in the construction of national identities, representing the 'self' to both domestic and international audiences. Evidence of the material impacts of media representations on individuals and society, and the pervasiveness of movie-watching as a cultural activity, underscore the importance of scholarly inquiry into film. Here, we are concerned with how ethnic diversity has been negotiated within the Australian national cinema - specifically at the scale of intimate interpersonal relationships. Our analysis of twenty-five recent Australian films considers how cinema alerts audiences to the possibilities and limitations of love within and across ethnic boundaries. We …
Computerisation Of Perinatal Data Entry: Is The Data Accurate?, Alison Craswell, Lorna Moxham, Marc Broadbent
Computerisation Of Perinatal Data Entry: Is The Data Accurate?, Alison Craswell, Lorna Moxham, Marc Broadbent
Faculty of Science, Medicine and Health - Papers: part A
Perinatal data (PD) is collected for mothers and babies Australia wide as mandated at a federal level. The data is used to monitor patterns in midwifery, obstetric and neonatal practice and health outcomes and is also used for research purposes, funding allocation and the education of midwives and medical officers. Accuracy in PD is most often reported via quantitative validation studies of PD collections both internationally and within Australia [1]. These studies report varying levels of accuracy in PD collection and suggest researchers need to be more aware of the quality of data they use. This paper presents findings from …
Computer Gaming And Adhd: Potential Positive Influences On Behavior, Stuart Johnstone
Computer Gaming And Adhd: Potential Positive Influences On Behavior, Stuart Johnstone
Faculty of Social Sciences - Papers (Archive)
Parents often express concerns about that technology, particularly video has on their children. Indeed, have been associated with problems social isolation and a drop-off in academic achievement, and games containing violence shown to increase aggressive thoughts and. Frequent interaction with video games been associated with subsequent problems functions such as attention and impulse-control However, it is important to note that technology and video games can also be used to improve behavior. During my 15 years of research examining the brain electrical activity and behavior of children with Attention Deficit Hyperactivity Disorder (ADHD), there has been an increase in the use …
Alcohol Advertising During Televised Australian Football Finals, Sandra C. Jones, Lance Barrie, Michael Chapman, Nicholas J. Corr, Sondra Davoren
Alcohol Advertising During Televised Australian Football Finals, Sandra C. Jones, Lance Barrie, Michael Chapman, Nicholas J. Corr, Sondra Davoren
Faculty of Social Sciences - Papers (Archive)
Alcohol marketing during sport, and alcohol industry sponsorship of sporting events, is highly lucrative; however, concerns have been raised over the impact on child and adolescent viewers of repeated exposure to alcohol marketing messages. The aim of this research project was to investigate the amount and type of alcohol marketing during two major sporting events in 2012 - the semi-finals and grand final of the AFL and NRL. The broadcasts of these six games were audited for alcohol advertisements and other advertising communications. Almost one-fifth of the screen time included alcohol marketing. Policy and practice implications of these findings are …
Faith-Based Substance Abuse Programs, Geoffrey C. B Lyons, Frank P. Deane, Peter J. Kelly
Faith-Based Substance Abuse Programs, Geoffrey C. B Lyons, Frank P. Deane, Peter J. Kelly
Faculty of Social Sciences - Papers (Archive)
Faith-based programs are one of the primary treatment options for individuals with substance use disorders. However, there is ambiguity regarding what faith-based programs are, how they differ from secular programs, and how they incorporate religion or spirituality into treatment. Furthermore, though evidence suggests faith-based programs can be as effective as other secular treatments, it is unclear how the utilization of religion or spirituality in the treatment process influences recovery outcomes. Preliminary research suggests that the exploration and cultivation of spirituality may operate on recovery by improving a client's psychological well-being, social support systems, and the ability to cope with distress.
Identity-Based Data Storage In Cloud Computing, Jinguang Han, Willy Susilo, Yi Mu
Identity-Based Data Storage In Cloud Computing, Jinguang Han, Willy Susilo, Yi Mu
Faculty of Engineering and Information Sciences - Papers: Part A
Identity-based proxy re-encryption schemes have been proposed to shift the burden of managing numerous files from the owner to a proxy server. Nevertheless, the existing solutions suffer from several drawbacks. First, the access permission is determined by the central authority, which makes the scheme impractical. Second, they are insecure against collusion attacks. Finally, only queries from the same domain (intra-domain) are considered. We note that one of the main applications of identity-based proxy re-encryption schemes is in the cloud computing scenario. Nevertheless, in this scenario, users in different domains can share files with each other. Therefore, the existing solutions do …
Efficient Linkable And/Or Threshold Ring Signature Without Random Oracles, Tsz Hon Yuen, Joseph K. Liu, Man Ho Au, Willy Susilo, Jianying Zhou
Efficient Linkable And/Or Threshold Ring Signature Without Random Oracles, Tsz Hon Yuen, Joseph K. Liu, Man Ho Au, Willy Susilo, Jianying Zhou
Faculty of Engineering and Information Sciences - Papers: Part A
Linkable ring signatures have found many attractive applications. One of the recent important extensions is a linkable threshold ring signature (LTRS) scheme. Unfortunately, the existing LTRS schemes are only secure in the random oracle model (ROM). In this paper, we make the following contributions. First, we construct the first LTRS scheme that is secure without requiring the ROM. Further, we enhance the security of a threshold ring signature (for both linkable or non-linkable) by providing a stronger definition of anonymity. This strengthened notion makes threshold ring signature schemes more suitable in real life. Finally, we provide efficient schemes that outperform …
Evidence-Free Policy: The Case Of The National Injury Insurance Scheme, Mark Harrison
Evidence-Free Policy: The Case Of The National Injury Insurance Scheme, Mark Harrison
Faculty of Engineering and Information Sciences - Papers: Part A
The Productivity Commission report 'Disability Care and Support' recommends tort liability be replaced by a compulsory, government-run, no-fault scheme. But theory and evidence indicate moving to a no-fault scheme will increase the accident rate. Even a move from non-risk-rated third-party insurance to non-risk-rated first-party insurance reduces incentives for care. A no-fault scheme is not superior to current policies; genuine reform will need to be informed by law and economics literature.
The Role Of Public Procurement In Improving Accessibility To Ict, Gunela Astbrink, William Tibben
The Role Of Public Procurement In Improving Accessibility To Ict, Gunela Astbrink, William Tibben
Faculty of Engineering and Information Sciences - Papers: Part A
Government bodies use public procurement policies and mechanisms to purchase ICT products and services. Some governments in OECD countries apply accessibility criteria when procuring ICT to improve access to their services and employment opportunities for people with disabilities. This may have a flow-on effect of greater availability of affordable and accessible ICT thus improving digital inclusion. This paper outlines research on comparative analysis of the situation in Australia with current policy in OECD countries. The research resulted in recommendations for a consumer-oriented plan to work with Australian governments on the introduction of accessibility criteria in ICT public procurement.
Security Analysis Of A Distributed Reprogramming Protocol For Wireless Sensor Networks, Yong Yu, Jianbing Ni, Ying Sun
Security Analysis Of A Distributed Reprogramming Protocol For Wireless Sensor Networks, Yong Yu, Jianbing Ni, Ying Sun
Faculty of Engineering and Information Sciences - Papers: Part A
Reprogramming for wireless sensor networks is essential to upload new code or to alter the functionality of existing code. To overcome the weakness of the centralized approach of the traditional solutions, He et al. proposed the notion of distributed reprogramming where multiple authorized network users are able to reprogram sensor nodes without involving the base station. They also gave a novel distributed reprogramming protocol called SDRP by using identity-based signature, and provided a comprehensive security analysis for their protocol. In this letter, unfortunately, we demonstrate that SDRP is insecure as the protocol fails to satisfy the property of authenticity and …
Noise Robust Keyword Spotting For User Generated Video Blogs, M S. Barakat, C H. Ritz, D A. Stirling
Noise Robust Keyword Spotting For User Generated Video Blogs, M S. Barakat, C H. Ritz, D A. Stirling
Faculty of Engineering and Information Sciences - Papers: Part A
This paper presents a template-based system for speaker independent key word spotting (KWS) in continuous speech that can help in automatic analysis, indexing, search and retrieval of user generated videos by content. Extensive experiments on clean speech confirm that the proposed approach is superior to a HMM approach when applied to noisy speech with different signal-to-noise ratio (SNR) levels. Experiments conducted to detect swear words, personal names and product names within a set of online user generated video blogs shows significantly better recall and precision results compared to a traditional ASR-based approach.
A Secure And Effective Anonymous User Authentication Scheme For Roaming Service In Global Mobility Networks, Fentong Wen, Willy Susilo, Guomin Yang
A Secure And Effective Anonymous User Authentication Scheme For Roaming Service In Global Mobility Networks, Fentong Wen, Willy Susilo, Guomin Yang
Faculty of Engineering and Information Sciences - Papers: Part A
In global mobility networks, anonymous user authentication is an essential task for enabling roaming service. In a recent paper, Jiang et al. proposed a smart card based anonymous user authentication scheme for roaming service in global mobility networks. This scheme can protect user privacy and is believed to have many abilities to resist a range of network attacks, even if the secret information stored in the smart card is compromised. In this paper, we analyze the security of Jiang et al.'s scheme, and show that the scheme is in fact insecure against the stolen-verifier attack and replay attack. Then, we …
The Joint Effect Of Image Blur And Illumination Distortions For Mobile Visual Search Of Print Media, Yi Cao, Christian Ritz, Raad Raad
The Joint Effect Of Image Blur And Illumination Distortions For Mobile Visual Search Of Print Media, Yi Cao, Christian Ritz, Raad Raad
Faculty of Engineering and Information Sciences - Papers: Part A
Mobile Visual Search (MVS) is an emerging area of research given the explosion of smart and powerful mobile devices. Typically, the performance of MVS applications is influenced by the implemented image processing algorithms as well as various distortions that occur when capturing images by the mobile camera. This paper examines the joint effect of two common distortions, namely the illumination changes and image blurring on image matching accuracy for print media when using four state-of-the art local feature algorithms. Results obtained for a database of real camera images captured by two different camera models show that the illumination changes have …
Approximation Algorithms For Interference Aware Broadcast In Wireless Networks, Dianbo Zhao, Kwan-Wu Chin
Approximation Algorithms For Interference Aware Broadcast In Wireless Networks, Dianbo Zhao, Kwan-Wu Chin
Faculty of Engineering and Information Sciences - Papers: Part A
Broadcast is a fundamental operation in wireless networks and is well supported by the wireless channel. However, the interference resulting from a node's transmission pose a key challenge to the design of any broadcast algorithms/protocols. In particular, it is well known that a node's interference range is much larger than its transmission range and thus limits the number of transmitting and receiving nodes, which inevitably prolong broadcast. To this end, a number of past studies have designed broadcast algorithms that account for this interference range with the goal of deriving a broadcast schedule that minimizes latency. However, these works have …
Key Characteristics-Based Sensor Distribution In Multi-Station Assembly Processes, Nagesh Shukla, Darek Ceglarek, Manoj K. Tiwari
Key Characteristics-Based Sensor Distribution In Multi-Station Assembly Processes, Nagesh Shukla, Darek Ceglarek, Manoj K. Tiwari
Faculty of Engineering and Information Sciences - Papers: Part A
This paper presents a novel approach for optimal key characteristics-based sensor distribution in a multi-station assembly process, for the purpose of diagnosing variation sources responsible for product quality defects in a timely manner. Current approaches for sensor distribution are based on the assumption that measurement points can be allocated at arbitrary locations on the part or subassembly. This not only presents challenges in the implementation of these approaches but additionally does not allow required product assurance and quality control standards to be integrated with them, due to lack of explicit relations between measured features and geometric dimensioning and tolerancing (GD&T). …
Privacy-Enhanced Keyword Search In Clouds, Miao Zhou, Yi Mu, Willy Susilo, Man Ho Allen Au
Privacy-Enhanced Keyword Search In Clouds, Miao Zhou, Yi Mu, Willy Susilo, Man Ho Allen Au
Faculty of Engineering and Information Sciences - Papers: Part A
The advent of cloud computing has dramatically changed the IT scene, as it offers cost savings and improvements to major operations. Nevertheless, the major obstacle relies on the effort on how to secure sensitive data files that are outsourced to the cloud environment. To ensure confidentiality, the sensitive data are usually encrypted prior to being outsourced. Nevertheless, effective data utilization remains a challenging task and there is a clear need for a secure and efficient searching mechanism over the encrypted data in the cloud, to increase the us-ability of the secure cloud environment. Unfortunately, existing work in the area of …