http://espace.library.uq.edu.au/ The University of Queensland en Fez http://blogs.law.harvard.edu/tech/rss http://espace.library.uq.edu.au/view/UQ:292332 2013-02-26T16:21:11Z Gray, Frances http://espace.library.uq.edu.au/view/UQ:258429 2011-10-21T00:00:00Z McCosker, Kieren D. og McGowan, Michael R. og O'Rourke, Peter K. og Smith, David R. og Fordyce, Geoffry og Burns, Brian M. og Joyner, Di og Phillips, Nancy og Menzies, Don og Newsome, Tom og Perkins, Nigel R. og Morton, John M. og Jephcott, Sandi http://espace.library.uq.edu.au/view/UQ:292634 2013-03-03T01:00:28Z Alberthsen, C. og Rand, J. S. og Bennett, P. C. og Paterson, M. og Lawrie, M. og Morton, J. M. http://espace.library.uq.edu.au/view/UQ:298152 The amount of pericentriolar matrix at the centrosome is tightly linked to both microtubule nucleation and centriole duplication, although the exact mechanism by which pericentriolar matrix levels are regulated is unclear. Here we show that Centrobin, a centrosomal protein, is involved in regulating these levels. Interphase microtubule arrays in Centrobin-depleted cells are more focused around the centrosome and are less stable than the arrays in control cells. Centrobin-depleted cells initiate microtubule nucleation more rapidly than control cells and exhibit an increase in the number of growing microtubule ends emanating from the centrosome, while the parameters of microtubule plus end dynamics around the centrosome are not significantly altered. Finally, we show that Centrobin depletion results in the increased recruitment of pericentriolar matrix proteins to the centrosome, including γ-tubulin, AKAP450, Kendrin and PCM‑1. We propose that Centrobin might regulate microtubule nucleation and organization by controlling the amount of pericentriolar matrix. 2013-04-23T12:38:05Z Jeffery, Jessie M. og Grigoriev, Ilya og Poser, Ina og van der Horst, Armando og Hamilton, Nicholas og Waterhouse, Nigel og Bleier, Jonathan og Subramaniam, V. Nathan og Maly, Ivan V. og Akhmanova, Anna og Khanna, Kum Kum http://espace.library.uq.edu.au/view/UQ:287911 2012-12-30T00:04:17Z Rafferty, Alannah E. og Jimmieson, Nerina L. og Armenakis, Achilles A. http://espace.library.uq.edu.au/view/UQ:290716 Chaperone-usher (CU) fimbriae are adhesive surface organelles common to many Gram-negative bacteria. Escherichia coli genomes contain a large variety of characterised and putative CU fimbrial operons, however, the classification and annotation of individual loci remains problematic. Here we describe a classification model based on usher phylogeny and genomic locus position to categorise the CU fimbrial types of E. coli. Using the BLASTp algorithm, an iterative usher protein search was performed to identify CU fimbrial operons from 35 E. coli (and one Escherichia fergusonnii) genomes representing different pathogenic and phylogenic lineages, as well as 132 Escherichia spp. plasmids. A total of 458 CU fimbrial operons were identified, which represent 38 distinct fimbrial types based on genomic locus position and usher phylogeny. The majority of fimbrial operon types occupied a specific locus position on the E. coli chromosome; exceptions were associated with mobile genetic elements. A group of core-associated E. coli CU fimbriae were defined and include the Type 1, Yad, Yeh, Yfc, Mat, F9 and Ybg fimbriae. These genes were present as intact or disrupted operons at the same genetic locus in almost all genomes examined. Evaluation of the distribution and prevalence of CU fimbrial types among different pathogenic and phylogenic groups provides an overview of group specific fimbrial profiles and insight into the ancestry and evolution of CU fimbriae in E. coli. 2013-02-08T13:37:32Z Wurpel, Daniel J. og Beatson, Scott A. og Totsika, Makrina og Petty, Nicola K. og Schembri, Mark A. http://espace.library.uq.edu.au/view/UQ:297215 2013-04-12T15:10:14Z Liu, K. C. og Lai, Chi-Kong http://espace.library.uq.edu.au/view/UQ:288085 2013-01-03T12:27:57Z Cuskelly, Monica og Poulsen, Anne A. http://espace.library.uq.edu.au/view/UQ:278068 Contemporary recognition of CLIL as a way forward from sometimes stalling second language studies programmes is linked to an increasing focus on 'global skills' within Australian educational policy papers. However, this teaching model has to find solutions for a number of challenges, in particular the 'tyranny of distance' from md target language communities. This paper presents a current overview of CLJL programmes in the Australian state of Queensland, which is leading the way with 12 programmes in seven languages, and then directs its lens towards two of these programmes which have benefitted from external support structures offered by government agencies from the target country. The German government initiative PASCH has established a digital network of over 1400 schools worldwide as a language policy technique to bundle the common cultural interest in German. PASCH straddles the fields of state language projection, transnational language communities and new digital literacies, with a large quantity of language exposure sites and opportunities. Based on interviews with teachers in two German CLIL programmes in Queensland, both part of the PASCH network, this paper, argues that transnational linguistic sites created by external support structures such as PASCH are the future for CLIL programmes in Australia. 2012-07-25T09:29:38Z Smala, Simone http://espace.library.uq.edu.au/view/UQ:240694 2011-05-06T00:00:00Z Douglas, Bettina og Bonner, Ann http://espace.library.uq.edu.au/view/UQ:292243 2013-02-25T08:13:20Z Abd Rahman, Azrin N. og Tett, Susan E. og Staatz, Christine E. http://espace.library.uq.edu.au/view/UQ:291572 2013-02-17T00:45:51Z Apel, Warren og Stark, Denis og Stark, Anthony og O'Hagan, Stephen og Ling, Joseph http://espace.library.uq.edu.au/view/UQ:294663 It is unclear how cognitive impairment in multiple sclerosis (MS) is influenced by physical disability, fatigue, and depression. Our aim was to identify the strongest clinical predictors for cognitive impairment in relapsing-remitting MS (RRMS) patients. The clinical risk factors included in the analysis were physical disability (EDSS), fatigue (FSS), the somatic and nonsomatic components of depression (BDI), disease progression rate [Multiple Sclerosis Severity Score (MSSS)], and psychotropic medication. Cognitive impairment had a prevalence of 30.5% in patients affecting preferentially attention, executive functions, processing speed and visual perception/organization. MSSS was not associated with cognitive impairment, depression, or fatigue. In regression models, cognitive performance was best predicted by the nonsomatic symptoms of depression alone or in combination with physical disability. Exclusion of patients with any psychotropic medication did not influence the results. Our results underscore the importance of evaluating depressive symptoms when suspecting cognitive impairment in patients with RRMS. 2013-03-24T00:37:39Z Sundgren, Mathias og Maurex, Liselotte og Wahlin, Ake og Piehl, Fredrik og Brismar, Tom http://espace.library.uq.edu.au/view/UQ:288406 lnteraction of air bubbles with solid surfnces is important in many chemical engineering applications with mass and heat transfer, and separation processes. This review focuses on the collision and attachment interactions between a rising bubble and a flat surface in water and surfactant solutions. The analysis involves a number of important aspects of the bubble motion and contact interactions which are governed by both long-range and short-range(thin film) hydrodynamics of the bubble rise, surfactant adsorption and desorption, wetting film drainage and rupture, and spreading and relaxation of three-phase contact lines. Featured properties of air-wator interface deformation, interfacial forces produced by adsorbed surfactants and interfacial mobility have a significant influence on the attachment and dewetting interactions. 2013-01-07T20:56:19Z Nguyen, Anh V. og Firouzi, Mahshid http://espace.library.uq.edu.au/view/UQ:291761 2013-02-20T15:01:08Z Niesche, Richard http://espace.library.uq.edu.au/view/UQ:240781 2011-05-11T00:00:00Z Ski, Chantal F. og Thompson, David R. http://espace.library.uq.edu.au/view/UQ:292626 2013-03-03T00:56:18Z Fakiola, Michaela og Strange, Amy og Cordell, Heather J. og Miller, E. Nancy og Pirinen, Matti og Su, Zhan og Mishra, Anshuman og Mehrotra, Sanjana og Monteiro, Gloria R. og Band, Gavin og Bellenguez, Celine og Dronov, Serge og Edkins, Sarah og Freeman, Colin og Giannoulatou, Eleni og Gray, Emma og Hunt, Sarah E. og Lacerda, Henio G. og Langford, Cordelia og Pearson, Richard og Pontes, Nubia N. og Rai, Madhukar og Singh, Shri P. og Smith, Linda og Sousa, Olivia og Vukcevic, Damjan og Bramon, Elvira og Brown, Matthew A. og Casas, Juan P. og Corvin, Aiden og Duncanson, Audrey og Jankowski, Janusz og Markus, Hugh S. og Mathew, Christopher G. og Palmer, Colin N. A. og Plomin, Robert og Rautanen, Anna og Sawcer, Stephen J. og Trembath, Richard C. og Viswanathan, Ananth C. og Wood, Nicholas W. og Wilson, Mary E. og Deloukas, Panos og Peltonen, Leena og Christiansen, Frank og Witt, Campbell og Jeronimo, Selma M. B. og Sundar, Shyam og Spencer, Chris C. A. og Blackwell, Jenefer M. og Donnelly, Peter http://espace.library.uq.edu.au/view/UQ:297029 2013-04-11T18:10:16Z Kashima, Y. og Kashima E. S. og Bain, P. og Lyons, A. og Tindale, R. og Robins, G. og Whelan, J. http://espace.library.uq.edu.au/view/UQ:258472 2011-10-21T00:00:00Z http://espace.library.uq.edu.au/view/UQ:289527 2013-01-20T00:20:59Z Ross, Helen og Berkes, Fikret http://espace.library.uq.edu.au/view/UQ:292648 2013-03-03T01:09:57Z Sugiyama, Takemi og Ding, Ding og Owen, Neville http://espace.library.uq.edu.au/view/UQ:298580 The periparturient period presents major physiological challenges for the dairy cow. It is a period that is affected by metabolic stressors, major changes in endocrine status, and altered immune function, which together result in an increased risk of disease. Immunological, hematological, and metabolic profiles from the periparturient period of heifers (primipara) were compared with those of cows (pluripara) to test the hypothesis that at the time of calving they have qualitatively different peripheral blood profiles. Blood samples were collected from 22 Holstein-Friesian animals on 3 occasions: approximately 2 wk before calving, within 24 h after calving, and approximately 2 wk after calving. Quantitative PCR was used to measure the expression of a selected set of cytokines and receptors by peripheral blood leukocytes. Additional analyses included hemoglobin concentration, red cell, platelet and white cell counts (total and differentiated), and clinical diagnostic biochemical profiles. Total leukocyte counts, neutrophils, and lymphocytes were higher in heifers than cows before calving and within 24 h after calving. Alkaline phosphatase was consistently higher in heifers than cows and several significant differences were observed between the 2 groups with regards to cytokine and cytokine-receptor mRNA expression. The results warrant further investigation from the perspective of identifying risk factors for metabolic and parturient disease in dairy cattle. 2013-04-28T00:19:04Z Jonsson, N. N. og Fortes, M. R. S. og Piper, E. K. og Vankan, D. M. og de Cisneros, J. Prada J. og Wittek, T. http://espace.library.uq.edu.au/view/UQ:293259 2013-03-10T00:27:20Z Ciani, Oriana og Buyse, Marc og Garside, Ruth og Pavey, Toby og Stein, Ken og Sterne, Jonathan A. C. og Taylor, Rod S. http://espace.library.uq.edu.au/view/UQ:291110 2013-02-11T11:31:47Z Tisdell, Clement A. http://espace.library.uq.edu.au/view/UQ:298050 Competition is a ubiquitous structuring force across systems, but different fields emphasize the role of different types of competition. In benthic marine environments, where some of the classic examples of competition were described, there is a strong emphasis on interference competition: marine invertebrates are assumed to compete fiercely for the limiting resource of space. Much of our understanding of the dynamics of this system is based on this assumption, yet empirical studies often find that increases in density can reduce performance despite free space being available. Furthermore, the assumption that space is the exclusively limiting resource raises paradoxes regarding species coexistence in this system. Here, we measure the availability of oxygen in the field and in the laboratory, as well as the tolerance of resident species to low-oxygen conditions. We show that oxygen can be the primary limiting resource in some instances, and that exploitative competition for this resource is very likely among benthic marine invertebrates. Furthermore, growth form (and the associated risk of oxygen limitation) covaries with the ability to withstand oxygen-poor conditions across a wide range of taxa. Oxygen availability at very small scales may influence the distribution and abundance of sessile marine invertebrates more than is currently appreciated. Furthermore, competition for multiple resources (space and oxygen) and trade-offs in competitive ability for each may promote coexistence in this system. 2013-04-19T19:07:09Z Ferguson, Nick og White, Craig R. og Marshall, Dustin J. http://espace.library.uq.edu.au/view/UQ:293246 2013-03-10T00:19:34Z Li, XiWen og Gao, HuanHuan og Wang, YiTao og Song, JingYuan og Henry, Robert og Wu, HeZhen og Hu, ZhiGang og Yao, Hui og Luo, HongMei og Luo, Kun og Pan, HongLin og Chen, ShiLin http://espace.library.uq.edu.au/view/UQ:298337 Computational tasks such as the calculation and characterization of the optical force acting on a sphere are relatively straightforward in a Gaussian beam trap. Resulting properties of the trap such as the trap strength, spring constants, and equilibrium position can be easily determined. More complex systems with non-spherical particles or multiple particles add many more degrees of freedom to the problem. Extension of the simple methods used for single spherical particles could result in required computational time of months or years. Thus, alternative methods must be used. One powerful tool is to use dynamic simulation: model the dynamics and motion of a particle or particles within the trap. We demonstrate the use of dynamic simulation for non-spherical particles and multi-particle systems. Using a hybrid discrete dipole approximation (DDA) and T-matrix method, we find plausible equilibrium positions and orientations of cylinders of varying size and aspect ratio. Orientation landscapes revealing different regimes of behaviour for micro-cylinders and nanowires with different refractive indices trapped with beams of differing polarization are also presented. This investigation provides a solid background in both the function and properties of micro-cylinders and nanowires trapped in optical tweezers. This method can also be applied to particles with other shapes. We also investigate multiple-particle trapping, which is quite different from single particle systems, as they can include effects such as optical binding. We show that equilibrium positions, and the strength of interactions between particles can be found in systems of two and more particles. 2013-04-26T18:19:06Z Cao, Yongyin og Stilgoe, Alexander B. og Stroet, Martin og Loke, Vincent L. Y. og Chen, Lixue og Nieminen, Timo A. og Rubinsztein-Dunlop, Halina http://espace.library.uq.edu.au/view/UQ:291052 2013-02-10T01:49:03Z Pang, Chaoyi og Zhang, Qing og Zhou, Xiaofang og Hansen, David og Wang, Sen og Maeder, Anthony http://espace.library.uq.edu.au/view/UQ:288067 Goals are desired states that an individual tries to attain. The process of achieving a goal can be represented as interlinked means-end chains of user goals that have been traditionally visualized as hierarchies. Evidence in recent literature suggests that a network structure would be more appropriate and provide insight into a user's process of seeking a goal. We investigated user goal means-end chains for the eBay online auction system, and produced its structure as a goal network. To analyze this network and assess the importance of various goals, social network analysis measures were used (specifically, degree and flow-betweenness centrality). In addition, goal networks for users with low and high IS value were created and differences in goal importance in the two groups were considered. Results revealed that the most important user goals are closely related to key features of the auction system; users with high IS value want to use eBay to buy, sell, and bid for products, while users with low IS value seem to avoid using eBay because of uncertain price bidding. As such, the results of our study suggest that differences in IS value may be due to differences in IS usage. IS designers, marketers, and providers of online auction system can use our findings to design and promote better systems for their users. 2013-01-02T18:56:49Z Matook, Sabine http://espace.library.uq.edu.au/view/UQ:288901 2013-01-11T15:14:55Z Iyer, Kartik K. og Bradley, Andrew P. og Wilson, Stephen J. http://espace.library.uq.edu.au/view/UQ:299246 2013-05-05T00:03:10Z Obreschkow, Danail og Ma, Xiangcheng og Meyer, Martin og Power, Chris og Zwaan, Martin og Staveley-Smith, Lister og Drinkwater, Michael J. http://espace.library.uq.edu.au/view/UQ:297481 2013-04-14T17:15:48Z Frank, Thomas og Netzel, Gabriele og Kammerer, Dietmar R. og Carle, Reinhold og Kler, Adolf og Kriesl, Erwin og Bitsch, Irmgard og Bitsch, Roland og Netzel, Michael http://espace.library.uq.edu.au/view/UQ:283858 This paper argues the competing ways in which continuing professional development (CPD) is currently practised in schooling settings in England is a product of the complex social conditions within which teachers work and learn, and teachers’ efforts to make sense of these conditions. Specifically, the paper draws upon research into the teacher learning practices, and conditions of practice, of a group of 18 teachers from one inner-city comprehensive secondary school in the British Midlands. To make sense of competing approaches to CPD within the school, the paper analyses these teachers’ experiences in light of Pierre Bourdieu’s concept of social practices as contested. The research reveals competing approaches to teacher CPD in relation to the management of teachers’ CPD, the focus upon improving test scores and the modes of learning in which teachers participate. The paper shows how conflicting pressures and demands in the context within which teachers work, and teachers’ responses to these demands, contribute to contested practices in and across these domains, both arising from and resulting in what is described as a ‘hybridised’ habitus. The research gestures towards the need to cultivate conditions conducive to more educationally oriented, critical, situated and collaborative CPD. 2012-10-25T08:59:41Z Hardy, Ian og Melville, Wayne http://espace.library.uq.edu.au/view/UQ:293236 2013-03-10T00:11:28Z Bousie, Jaquelin A. og Blanch, Peter og McPoil, Thomas G. og Vicenzino, Bill http://espace.library.uq.edu.au/view/UQ:293335 2013-03-10T01:14:57Z Weston, Kassia S. og Sacre, Julian W. og Jellis, Christine L. og Coornbes, Jeff S. http://espace.library.uq.edu.au/view/UQ:293329 2013-03-10T01:12:26Z Dixon, R. M. http://espace.library.uq.edu.au/view/UQ:281862 Though the impact of co-payments on health care demand is well documented in developed countries, evidence from developing countries is rare. In this paper, we contribute to this scarcity by analysing the impact of increasing co-payments in a developing country, namely Vietnam. In 2007, the Vietnam government reintroduced a co-payment of 20 percent for individuals with voluntary health insurance. Because individuals with compulsory health insurance and the uninsured were exempted from the increase in co-payments, this policy can be regarded as a quasi-natural experiment. We use a difference-in-difference approach to examine whether the increase in co-payment effectively reduces the demand for health care services. We find it has no significant negative impact on health care demand. This finding holds with different control groups, outcomes and estimators. 2012-09-14T11:48:15Z Nguyen, Ha Trong og Connelly, Luke http://espace.library.uq.edu.au/view/UQ:285978 2012-11-21T09:54:12Z Cvetkovski, Trajce http://espace.library.uq.edu.au/view/UQ:290415 Numerous factors are hypothesised to limit the geographical distribution of reef organisms, such as corals. For example, high-latitude populations of some marine invertebrates are not reproductive, rather they are sustained by the input of larvae from reefs closer to the tropics. Here, we investigate the reproductive biology of high-latitude corals in Moreton Bay, Australia, to test whether or not these populations have the capacity to be self-sustaining. The reproductive condition of 21 scleractinian species was determined in November and December 2002 and 2003 and January 2004. Seventy percent of colonies (n = 97) were gravid and at least one gravid colony was found in 86% of the species, suggesting that reproductive activity is concentrated in late spring and summer. Mature colonies were present in all three months and immature colonies were present in January, indicating a reproductive season of at least four months. The proportion of mature colonies was highest in January (42%) suggesting a peak in reproductive activity at this time. Coral populations of Moreton Bay clearly have the potential to be self-sustaining; however, their isolation from other reef areas suggests that these populations may be slow to recover from disturbance. 2013-02-01T22:14:23Z Fellegara, I. og Baird, A. H. og Ward, S. http://espace.library.uq.edu.au/view/UQ:295995 2013-04-05T13:20:58Z Lee, Kwan H. og Zhang, Yuliang og Burn, Paul L. og Gentle, Ian R. og James, Michael og Nelson, Andrew og Meredith, Paul http://espace.library.uq.edu.au/view/UQ:292820 2013-03-05T07:22:40Z Drever-Smith, Cassia og Bogossian, Fiona og New, Karen http://espace.library.uq.edu.au/view/UQ:289221 2013-01-16T16:00:05Z Ditsuwan, Vallop og Veerman, Jacob Lennert og Bertram, Melanie og Vos, Theo http://espace.library.uq.edu.au/view/UQ:282186 ‘Firstly, do no harm’ – a fundamental principle in the practice of medicine. Opioids have long been the mainstay in the treatment of acute and chronic cancer pain, but can opioids administered to cancer patients during the course of their treatment actually do more harm than good? This chapter examines the current experimental and translational research relating to opioids and their potential effect on cancer recurrence and metastases. 2012-09-20T16:01:39Z Buggy, Donal og Shannon, Hilary og Parat, Marie-Odile http://espace.library.uq.edu.au/view/UQ:290003 2013-01-27T00:06:19Z Wright, April L. og Zammuto, Raymond F. http://espace.library.uq.edu.au/view/UQ:252494 The creative industries are key drivers of modern economies. While economic analysis has traditionally advanced a market-failure model of arts and culture, this book argues for an evolutionary market dynamics or innovation-based approach. The book explores theoretical and conceptual aspects of an evolutionary economic approach to the study of the creative economy. Topics include creative businesses and labour markets, social networks, innovation processes and systems, institutions, and the role of creative industries in market dynamics and economic growth. [from publisher's website] 2011-09-20T00:00:00Z Earl, Peter og Potts, Jason http://espace.library.uq.edu.au/view/UQ:293474 In many countries of the world international human rights texts explicitly or implicitly purport to be universal and to have binding effect. In the South Pacific, however, whilst many countries are signatories to human rights conventions, few have incorporated international conventions into domestic law. On the other hand, many regional countries, including Solomon Islands, have enshrined human rights in their constitutions and provided a mechanism for the enforcement of those rights. Protection is also provided by the common law. In spite of these formal laws, in reality there has been little tangible change. In particular, customary law has been relied on to subvert key human rights protections, particularly anti-discrimination norms. This Chapter looks at the question of whether human rights are universal and binding in the context of the South Pacific and more particularly with reference to Solomon Islands. 2013-03-12T13:23:22Z Corrin, Jennifer http://espace.library.uq.edu.au/view/UQ:263761 2011-12-19T00:00:00Z http://espace.library.uq.edu.au/view/UQ:298738 The back-story of customer rage, that is, what is behind a rage episode, specifically the customer's cognitive appraisal processes that trigger extreme negative emotions, and the customer's background (culture) is not well understood. This study involving 435 adult customers, investigates over two time periods (Episode 1: initial failure, and Episode 2: ineffective recovery), the association between the initial service failure type, subsequent ineffective service recovery attempts, and customers’ cognitive appraisals. Our two country research clearly shows that service failure types are differentially associated with different forms of cognitive appraisals (i.e., perceived threats to resources, self-esteem, justice, control, and physical well-being), irrespective of the customer's home country. However, US and Thai customers appear to place different relative importance on cognitive appraisal types. Marketing managers can use this study to identify triggers of customer rage thus equipping them to implement strategies designed to mitigate this potentially harmful behavior. 2013-04-28T00:48:43Z Surachartkumtonkun, Jiraporn og Patterson, Paul G. og McColl-Kennedy, Janet R. http://espace.library.uq.edu.au/view/UQ:291760 2013-02-20T14:58:22Z Marguerite J. Kutyla og Lynette K. Lambert og Nigel M. Davies og Ross P. McGeary og P. Nicholas Shaw og Benjamin P. Ross http://espace.library.uq.edu.au/view/UQ:297108 2013-04-12T11:39:52Z Holubizky, Ihor