Digital Commons Network^™

Boldness And Asymmetric Contests: Role- And Outcome-Dependent Effects Of Fighting In Hermit Crabs, Winnie Courtene-Jones, Mark Briffa

School of Biological and Marine Sciences

No abstract provided.

From Services To Civilian: The Geographies Of Veterans' Post-Military Lives, Agatha Herman, Richard Yarwood

School of Geography, Earth and Environmental Sciences

No abstract provided.

Application Of Artificial Neural Networks To Weighted Interval Kalman Filtering, Amit Motwani, Sanjay K. Sharma, Robert Sutton, Phil Culverhouse

School of Engineering, Computing and Mathematics

No abstract provided.

Non-Linear Control Algorithms For An Unmanned Surface Vehicle, Sanjay K. Sharma, Robert Sutton, Amit Motwani, Andy Annamalai

School of Engineering, Computing and Mathematics

No abstract provided.

Bedform Dynamics In A Rip Current, Antony Thorpe, Jon Miles, Gerd Masselink, Paul Russell

School of Engineering, Computing and Mathematics

No abstract provided.

Learning To Pronounce First Words In Three Languages: An Investigation Of Caregiver And Infant Behavior Using A Computational Model Of An Infant., Ian S. Howard, Piers Messum

School of Engineering, Computing and Mathematics

Words are made up of speech sounds. Almost all accounts of child speech development assume that children learn the pronunciation of first language (L1) speech sounds by imitation, most claiming that the child performs some kind of auditory matching to the elements of ambient speech. However, there is evidence to support an alternative account and we investigate the non-imitative child behavior and well-attested caregiver behavior that this account posits using Elija, a computational model of an infant. Through unsupervised active learning, Elija began by discovering motor patterns, which produced sounds. In separate interaction experiments, native speakers of English, French and …

Techniques For Production Of Large Area Graphene For Electronic And Sensor Device Applications, B Li, G Pan, Sa Awan, N Avent

School of Engineering, Computing and Mathematics

AbstractHere we review commonly used techniques for the production of large area and high quality graphene to meet the requirements of industrial applications, including epitaxial growth on SiC, chemical vapour deposition (CVD) on transition metals and growth from solid carbon source. The review makes a comparison of the growth mechanisms, quality (such as mobility and homogeneity) and properties of the resultant graphene, limitations and the prospect of each production method. A particular focus of the review is on direct (transfer free) growth on dielectric substrate as this is potentially one of the promising techniques for graphene production which can readily …

Interplay Between Phosphorylation And Palmitoylation Mediates Plasma Membrane Targeting And Sorting Of Gap43, A Gauthier-Kemper, M Igaev, F Sündermann, D Janning, J Brühmann, K Moschner, H-J Reyher, W Junge, K Glebov, J Walter, L Bakota, R Brandt

Peninsula Medical School

Phosphorylation and lipidation provide posttranslational mechanisms that contribute to the distribution of cytosolic proteins in growing nerve cells. The growth-associated protein GAP43 is susceptible to both phosphorylation and S-palmitoylation and is enriched in the tips of extending neurites. However, how phosphorylation and lipidation interplay to mediate sorting of GAP43 is unclear. Using a combination of biochemical, genetic, and imaging approaches, we show that palmitoylation is required for membrane association and that phosphorylation at Ser-41 directs palmitoylated GAP43 to the plasma membrane. Plasma membrane association decreased the diffusion constant fourfold in neuritic shafts. Sorting to the neuritic tip required palmitoylation and …

Characterisation Of The Porous Structure Of Gilsocarbon Graphite Using Pycnometry, Cyclic Porosimetry And Void-Network Modeling, Giuliano M. Laudone, Christopher M. Gribble, G. Peter Matthews

School of Geography, Earth and Environmental Sciences

The cores of the fourteen Advanced Gas-cooled nuclear Reactors (AGRs) within the UK comprise Gilsocarbon graphite, a manufactured material surrounded predominantly by CO2 at high pressure and temperature to provide heat exchange. The intense ionising radiation within the reactors causes radiolytic oxidation, and the resulting mass loss is a primary factor in determining reactor lifetime. The void structure of the porous Gilsocarbon graphite affects the permeability and diffusion of the carbon dioxide, and the sites of oxidation. To model this void structure, the porosities and densities of ten virgin Gilsocarbon graphite samples have been measured by powder and helium pycnometry. …

Evaluation Of The Microbial Community, Acidity And Proximate Composition Of Akamu, A Fermented Maize Food, Patience C. Obinna-Echem, Victor Kuri, Jane Beal

School of Biological and Marine Sciences

No abstract provided.

Combined Effect Of Rotation And Topography On Shoaling Oceanic Internal Solitary Waves, Roger Grimshaw, Chuncheng Guo, Karl Helfrich, Vasiliy Vlasenko

School of Biological and Marine Sciences

No abstract provided.

Modelling Particle Residence Times In Agricultural River Basins Using A Sediment Budget Model And Fallout Radionuclide Tracers, Hugh G. Smith, William H. Blake, Alex Taylor

School of Geography, Earth and Environmental Sciences

No abstract provided.

The Bacterial Skin Microbiome In Psoriatic Arthritis, An Unexplored Link In Pathogenesis: Challenges And Opportunities Offered By Recent Technological Advances., Madhura Castelino, Stephen Eyre, Mathew Upton, Pauline Ho, Anne Barton

School of Biomedical Sciences

The resident microbial community, harboured by humans in sites such as the skin and gastrointestinal tract, is enormous, representing a candidate environmental factor affecting susceptibility to complex diseases, where both genetic and environmental risk factors are important. The potential of microorganisms to influence the human immune system is considerable, given their ubiquity. The impact of the host-gene-microbe interaction on the maintenance of health and the development of disease has not yet been assessed robustly in chronic inflammatory conditions. PsA represents a model inflammatory disease to explore the role of the microbiome because skin involvement and overlap with IBD implicates both …

Galleria Mellonella Infection Model Demonstrates High Lethality Of St69 And St127 Uropathogenic E. Coli., Majed F. Alghoribi, Tarek M. Gibreel, Andrew R. Dodgson, Scott A. Beatson, Mathew Upton

School of Biomedical Sciences

Galleria mellonella larvae are an alternative in vivo model for investigating bacterial pathogenicity. Here, we examined the pathogenicity of 71 isolates from five leading uropathogenic E. coli (UPEC) lineages using G. mellonella larvae. Larvae were challenged with a range of inoculum doses to determine the 50% lethal dose (LD50) and for analysis of survival outcome using Kaplan-Meier plots. Virulence was correlated with carriage of a panel of 29 virulence factors (VF). Larvae inoculated with ST69 and ST127 isolates (10(4) colony-forming units/larvae) showed significantly higher mortality rates than those infected with ST73, ST95 and ST131 isolates, killing 50% of the larvae …

A Novel Phosphatidylinositol 3-Kinase (Pi3k) Inhibitor Directs A Potent Foxo-Dependent, P53-Independent Cell Cycle Arrest Phenotype Characterized By The Differential Induction Of A Subset Of Foxo-Regulated Genes, Richard Hill, Ravi Kiran Reddy Kalathur, Sergio Callejas, Laura Colaço, Ricardo Brandão, Beatriz Serelde, Antonio Cebriá, Carmen Blanco-Aparicio, Joaquín Pastor, Matthias Futschik, Ana Dopazo, Wolfgang Link

School of Biomedical Sciences

No abstract provided.

Evidence That Duplications Of 22q11.2 Protect Against Schizophrenia, E Rees, G Kirov, Mc O'Donovan, Wellcome Trust Case Control Consortium, Et Al

School of Biomedical Sciences

A number of large, rare copy number variants (CNVs) are deleterious for neurodevelopmental disorders, but large, rare, protective CNVs have not been reported for such phenotypes. Here we show in a CNV analysis of 47 005 individuals, the largest CNV analysis of schizophrenia to date, that large duplications (1.5-3.0 Mb) at 22q11.2--the reciprocal of the well-known, risk-inducing deletion of this locus--are substantially less common in schizophrenia cases than in the general population (0.014% vs 0.085%, OR=0.17, P=0.00086). 22q11.2 duplications represent the first putative protective mutation for schizophrenia.

Herbal And Microbial Products For The Management Of Obesity, Maha Salama, Soheir El Zalabani, Essam Abdel Sattar

Pharmacy

Obesity is a global epidemic and one of the major health burdens of modern times. The prevalence of obesity is increasing worldwide; it constitutes a serious problem in developed as well as developing countries. Beside adults, the number of obese teenagers and children in particular has dramatically increased. Obesity is characterized by accumulation of excess fat in adipose tissues in an extent to produce adverse effects on health, leading to a reduction in life expectancy and/or a raise in health hazards. People are classified as overweight (pre-obese) and obese on the basis of the Body Mass Index (BMI), crude measure …

Evaluation Of Clustering Image Using Steady State Genetic And Hybrid K-Harmonic Clustering Algorithms, Baheja K., Sura Zaki Naji Alrashid

Iraqi Journal of Computers, Communications, Control and Systems Engineering

The goal of clustering is to determine the intrinsic grouping in a set of unlabeled data depending on some similarity measure (e.g. Euclidean distance).In this paper a steady state genetic algorithm (SSGA) approach is used to cluster true color images. After splitting the original images into red, green and blue components and displaying the image of each part, Steady State Genetic Algorithm (SSGA) is used to cluster the image to determine the number of clusters for the image by generating an initial population randomly and then applying the different operations of GA such as fitness function computation, selection, crossover, mutation …

Hmac Modification Using New Random Key Generator, Shaimaa H.

Iraqi Journal of Computers, Communications, Control and Systems Engineering

Cryptographic hash functions have been very significant primitives to the cryptography. They have been utilized widely in cryptographic applications and the most important of which is their use in the composition of efficient Message Authentication Codes (MACs). Cryptanalysts cannot break the encryption code authorization message because they could not generate the message sets without key predictors. This paper introduces a new way to achieve hash code authorization message to increase the strength of the code, reluctance to Birthday attack, and key’s exhaustive search. Secret key with randomness property is generated with the assistance proposed algorithm called AKG (Algorithm of Key …

Lte Based E-Health Monitoring System, Muayad Sadik

Iraqi Journal of Computers, Communications, Control and Systems Engineering

Recently, the on-line health monitoring have been considered in the research to obtain pragmatic e-health systems with low cost and high efficiency. In this paper, a mobile e-health system is proposed based on an algorithm over long terms eVolution (LTE) technology that can be called as fourth generation (4G). This system controls the receiving of the transmitted health data from the patients under supervision and replies the responses of the considered algorithm. The responded signals include the required actions that should be performed by the patient and the hospital. The proposed system utilizes the LTE based mobile networks for the …

Static Stability Analysis Of Hexagonal Hexapod Robot For The Periodic Gaits, Firas A., Hind Z. Khaleel

Iraqi Journal of Computers, Communications, Control and Systems Engineering

Hexagonal hexapod robot is a flexible mechanical robot with six legs. It has the ability to walk over terrain. The hexapod robot likes insect so it has the same periodic gaits. These gaits are tripod, wave and ripple gaits. Hexapod robot needs to stay statically stable at all the times during each gait in order not to fall with three or more legs continuously contacts with the ground. The safety static stability walking can be indicated by the stability margin. In this paper we based on the forward, inverse kinematics for each hexapod’s leg to simulate the hexapod robot model …

State Space Parameters Estimation Using Online Genetic Algorithms, Ali Hussein, Alexander N. Grachev, Saad Jabbar Abbas

Iraqi Journal of Computers, Communications, Control and Systems Engineering

Accurate on-line estimates of critical system states and parameters are needed in a variety of engineering applications, such as condition monitoring, fault diagnosis, and process control. In these and many other applications it is required to estimate a system variable which is not easily accessible for measurement, using only measured system inputs and outputs. The classical identification methods, such as least-square method, are calculus-based search method. They have many drawbacks such as requiring a good initial guess of the parameter and gradient or higher-order derivatives of the objective function are generally required also there is always a possibility to fall …

Collective Robotics Search Using Particle System, Ahmed Ibraheem

Iraqi Journal of Computers, Communications, Control and Systems Engineering

This work introduces the implementation of particle system to be simulated to work as a group of unmanned mobile robots (swarm robots). These robots are able to locate a specified target in the predefined environment with high efficiency when driven by an optimized Particle Swarm Optimization (PSO) algorithm. The application of the particle system to the mobile robots to search for a target in the environment is called Collective Robotics Search (CRS) problem. The main benefit of this application is to eVolve better solutions than using single robot through the collective interaction of all robots between them to achieve the …

Post-School Adult Life For Young People With Down Syndrome, Kitty Rose Foley

Theses: Doctorates and Masters

Down syndrome is a chromosomal birth disorder affecting one in 650 to 1000 live births in Western Australia. The life expectancy for people with Down syndrome has increased dramatically over the past two generations leading to these young people having changing needs in terms of social, economic and personal life. Encompassed within this, is the successful transition from school to post-school, a time of upheaval, stress and important decisions for young people with intellectual disabilities. The International classification of functioning, disability and health (ICF) is a world renowned framework which provides a scientific basis and standardised language for describing and …

The Australian Football League And The Closet, Andrew Douglas

Theses: Doctorates and Masters

This thesis examines the complete absence of openly gay males from the ranksof the professional players in the Australian Football League (AFL). It seeks to explain this absence in the context of the modern gay rights movement. incontemporary Australian society. It compares and contrasts the effects of thismovement on both the AFL and other mainstream Australian social institutions.

Over more than four decades, the gay rights movement has effected a number of social changes. These changes include both specific legal reforms and more general trends such as the increasing social visibility of gay men across a range of mainstream institutions …

The Role Of Strangers In Victorian Novels: A Psychoanalytical Study Of Their Repressions, Functions And Aspirations, Mohammad Ahmed Al-Abdulrazaq

Theses: Doctorates and Masters

The aim of this study is to examine the stranger characters in three Victorian Novels, Emily Bronte's Wuthering Heights, Thomas Hardy's The Mayor of Casterbridge and Charles Dickens's Great Expectations. The exploration of the characters is based on the analysis of their psyche to understand how they are utilized by the Victorian writers. The study highlights how the fictional strangers can assist in the course of the action of the novel and function as a stimulus by which the actions and thoughts develop plausibly and feasibly. Utilizing the views of Freud, Erikson and others the study will allow for …

Enhancing Teaching Through Professional Learning: Case Studies Of Professional Learning To Improve Reading Instruction For Year 2 Students With Reading Difficulties In One Australian State, Susan Main

Theses: Doctorates and Masters

Reading is internationally recognised as a mediating factor in the life outcomes of individuals and the continuing failure of Australian children to attain the same level of literacy as children in other Western countries is an ongoing concern. Within the continuum of reading development, there are some children who experience more difficulty than their peers in acquiring reading skills and these children are at even greater risk of poor life outcomes if they do not receive appropriate instruction. Research demonstrates that professional learning is an effective way of enhancing teachers’ knowledge and practice and, therefore, the purpose of this study …

Understanding And Building Resilience With Art: A Socio-Ecological Approach, Meagan Shand

Theses: Doctorates and Masters

Resilience is a widely researched phenomenon, it means different things to different people and is perceived and measured according to the theoretical lens being applied. The following thesis reviews the theoretical development of resilience that has led to contemporary understandings, to establish a platform for the research topic - understanding and building resilience with Art. Narrative research methods are combined with art processes to illuminate the stories of eight culturally diverse women participating in a community based mental health art program, in Western Australia. Fifteen resilience themes emerged from the collective experience, and are presented in a socio-ecological framework to …