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2014

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The Effect Of Habituation And Changes In Cognition On Anxious Children's Performance On The Wisc-Iv, Franziska Noack Jan 2014

The Effect Of Habituation And Changes In Cognition On Anxious Children's Performance On The Wisc-Iv, Franziska Noack

LSU Master's Theses

Researchers have shown that children with anxiety disorders perform worse on intelligence tests than children with no diagnosable disorders. At this point, two theories have been put forth to describe the direction of this relationship: anxiety results in lowered test performance, and underlying cognitive deficits result in the development of anxiety. Lowered test performance as a result of anxiety may either be due to attention-deficits due to state anxiety or anxiety-elicited difficulties with long-term retention and learning. The purpose of this study was to further examine the first theory: that clinical levels of anxiety can hamper intelligence test performance in …

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Does The Timing Of Feedback Affect Student Learning?, Tamara J. Hebert Jan 2014

Does The Timing Of Feedback Affect Student Learning?, Tamara J. Hebert

LSU Master's Theses

Online homework is becoming a common type of assignment for math courses in secondary and post-secondary schools in the U.S. This study attempts to determine whether in this setting immediate feedback offers any advantage over delayed feedback in promoting learning gains in high school math. To this end, a study involving two comparable groups of students was performed, one group receiving immediate and the other delayed feedback. Both groups received their feedback in a computer-assisted environment. No significant difference in achievement between the two feedback groups was found.

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A Treatment Planning Comparison Of Volumetric Modulated Arc Therapy And Proton Therapy For A Sample Of Breast Cancer Patients Treated With Post-Mastectomy Radiotherapy, Margaret Hernandez Jan 2014

A Treatment Planning Comparison Of Volumetric Modulated Arc Therapy And Proton Therapy For A Sample Of Breast Cancer Patients Treated With Post-Mastectomy Radiotherapy, Margaret Hernandez

LSU Master's Theses

Purpose: The delivery of post-mastectomy radiotherapy (PMRT) can be challenging for patients with left-sided breast cancer due to the planning target volume (PTV) size and proximity to critical organs. This study investigates the use of protons, both passively scattered (PS) and intensity modulated proton therapy (IMPT), for PMRT in a clinically-representative cohort of patients, and quantitatively compares the predicted outcomes of volumetric modulated photon arc therapy (VMAT) to those of proton therapy to develop an evidence-based rationale for selecting a treatment modality for PMRT patients. Methods: Eight left-sided PMRT patients previously treated at our clinic with VMAT were included in …

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Modeling Near Surface, Gas-Induced Seafloor Deformation Using Thin Plate Mechanics In The Thunder Horse Oil Field, Gulf Of Mexico And Ninilchik Field, Cook Inlet Basin, Alaska, Michael I. Thoma Jan 2014

Modeling Near Surface, Gas-Induced Seafloor Deformation Using Thin Plate Mechanics In The Thunder Horse Oil Field, Gulf Of Mexico And Ninilchik Field, Cook Inlet Basin, Alaska, Michael I. Thoma

LSU Master's Theses

Seabed topographic expressions such as pockmarks and domes caused by the vertical migration and accumulation of methane are found in muddy, cohesive sea beds around the world. These surface features range from 10-1000 m in diameter and 1-20 m in relief (Judd and Hovland, 2007). The mechanics of soft, cohesive sediment deformation due to overpressure from rising gas is not well understood or quantitatively defined despite the hazards they present to offshore drilling. Shallow gas pockets and overpressured sediments formed by the migration of subsurface gas to the seafloor can cause drilling blowouts, resulting in the release of large amounts …

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A Comparative Assessment Of Crowded Source Travel Time Estimates: A Case Study Of Bluetooth Vs Inrix On A Suburban Arterial, Fahad Fasha Alhajri Jan 2014

A Comparative Assessment Of Crowded Source Travel Time Estimates: A Case Study Of Bluetooth Vs Inrix On A Suburban Arterial, Fahad Fasha Alhajri

Civil and Environmental Engineering Master's Project Reports

Travel time is one of the most widely used measures of traffic performance monitoring for the transportation systems. It is a simple concept that refers to the time required to traverse between two points of interest. Travel time is communicated and used by a wide variety of audience such as commuters, media reporters, and transportation engineers and planners. Recent developments within the wireless communication area made it possible to collect travel time data at a relatively low cost. These emerging technologies include mobile phone based technologies, in-vehicle navigation technologies and automatic vehicle identification technologies. Although these technologies offer a great …

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Cognitive Bias And Learning From Experience: Reflective Processes For Reducing Bias, Dina Acklin Jan 2014

Cognitive Bias And Learning From Experience: Reflective Processes For Reducing Bias, Dina Acklin

LSU Master's Theses

While heuristic processing is often useful for quickly ascertaining information in everyday situations, it can lead to inaccuracies when task demands become complex and more systematic processing is required. These inaccuracies are often the result of confirmation bias, in which information that is consistent with our beliefs is noted at the expense of disconfirming evidence. The current decision making literature suggests that highlighting disconfirming evidence – termed negative feedback - might work to engage deliberate, systematic cognitive processes that lead to more accurate information acquisition. Using a probabilistic learning task where feedback is not consistently accurate (Matchmaker), the first experiment …

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Stroke And Aphasia Quality Of Life Scale-39: Investigating Preliminary Content Validity Of Picture Representations By People With Mild To Moderate Aphasia, Lea Jane Heise-Jensen Jan 2014

Stroke And Aphasia Quality Of Life Scale-39: Investigating Preliminary Content Validity Of Picture Representations By People With Mild To Moderate Aphasia, Lea Jane Heise-Jensen

LSU Master's Theses

Speech-language pathologists must consider the clients’ quality of life (QoL) to provide effective and meaningful evidence-based treatment (ASHA, 2005). Quality of life assessment goes beyond language impairments and is often a key part of planning intervention. However, few QoL measures exist for people with aphasia (PWA). The Stroke and Aphasia Quality of Life Scale-39 (SAQOL-39; Hilari, 2003) is one of the few valid and reliable measures used to assess QoL in people with mild to moderate aphasia. However, the validity and reliability of the SAQOL-39 has not been established for individuals with severe aphasia who are unable to read and …

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Avian Biogeography And Conservation In Eastern Indonesia, John C. Mittermeier Jan 2014

Avian Biogeography And Conservation In Eastern Indonesia, John C. Mittermeier

LSU Master's Theses

Evaluating the conservation status of threatened species requires a sequential process of 1) taxonomic classification, 2) distributional mapping, and 3) evaluation of species according to criteria established by the IUCN Red List. Knowledge gaps in the first two phases of this process have been termed the Linnaean and Wallacean Shortfalls, respectively. The Indonesian archipelago is one of the most biologically diverse areas of the planet, as well as one of the most threatened and poorly studied, and the Linnaean and Wallacean Shortfalls pose substantial challenges for conservation in the region. Here I address each of the three stages of categorizing …

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Thermodynamics Of Dna Binding By Dna Polymerase I And Reca Recombinase From Deinococcus Radiodurans, Jaycob Dalton Warfel Jan 2014

Thermodynamics Of Dna Binding By Dna Polymerase I And Reca Recombinase From Deinococcus Radiodurans, Jaycob Dalton Warfel

LSU Doctoral Dissertations

Deinococcus radiodurans has a significantly more robust DNA repair response than Escherichia coli, which helps it survive high amounts of oxidative stress. D. radiodurans DNA Polymerase I (DrPolI) and RecA protein (DrRecA) play essential parts in this DNA repair capability. Structural stability studies of the DrPolI large fragment (Klendra) and examination of the DNA binding characteristics of Klendra and RecA are presented herein. In the absence of cofactors DrRecA binds to dsDNA more than 20 fold tighter than EcRecA, and binds ssDNA up to 9 fold tighter. Binding to dsDNA in the absence of cofactor presumably monitors DNA end binding. …

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Analysis Of Soil And Groundwater Microbial Population Dynamics At In Situ Bioremediation Sites In California And Texas, Farrar C. Stewart Jan 2014

Analysis Of Soil And Groundwater Microbial Population Dynamics At In Situ Bioremediation Sites In California And Texas, Farrar C. Stewart

LSU Master's Theses

Traditional methods for assessing in situ microbial communities often provide limited information on substrate utilization in bioremediation processes. The goal of this research was to assess new methods for describing the microbial communities found in the groundwater and affected contaminated soils documenting changes in community structure, population dynamics, substrate utilization and biodegradation of constituents of concern (CoC) during a site remediation. Two in situ bioremediation pilot studies using biological plugs are being conducted, one in the California San Francisco Bay Area (Sunnyvale) and one in the East Texas Piney Woods (Longhorn). The hypothesis is that changes in community structure, population …

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Human Perception Of Piano Timbre Variations Relative To The Piano's Dynamic Range, Pitagoras Goncalves Jan 2014

Human Perception Of Piano Timbre Variations Relative To The Piano's Dynamic Range, Pitagoras Goncalves

LSU Doctoral Dissertations

The purpose of this study was to investigate the perception of brightness as it relates to loudness variations in piano tone. A single note was recorded with multiple intensities and used as the stimuli. I normalized all recorded notes to be perceived with the same volume and with the same duration. Consequently, the tone quality could be evaluated without the influence of loudness. Professional musicians and music students were invited to participate. I designed a mechanical apparatus, which produced a measured amount of force applied to the piano key. This device was used to record an intensity range of approximately …

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Characterization Of A Water Soluble, Non-Ionic, Helical Poly(Α-Amino Acid), Wayne Huberty Jan 2014

Characterization Of A Water Soluble, Non-Ionic, Helical Poly(Α-Amino Acid), Wayne Huberty

LSU Doctoral Dissertations

A water soluble, non-ionic, rodlike polymer, PEGL, was synthesized and characterized in efforts to synthesize a novel model polymer to study stiff polymers in solution. The rodlike system is likely stiff due to a high relative percent helicity in water up to 50 °C, measured by circular dichroism, the observation of liquid crystalline domains in water, and from the slope measured from conformation plots supplied by GPC/MALS; however, it also apparent the system is aggregating in both a 2 mM azide solution and a buffer (200 mM NaNO3 + 20 mM NaH2PO4 + 2 mM NaN3), in corroboration of negative …

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Analysis And Expressive Performance : Four Selected Works By Chopin, Timothy David Saeed Jan 2014

Analysis And Expressive Performance : Four Selected Works By Chopin, Timothy David Saeed

LSU Doctoral Dissertations

In this dissertation, I examine four works by Chopin and address issues of expressive performance derived from principles of the nineteenth-century Swiss theorist, Mathis Lussy (1828-1910). Lussy’s systematic approach into the understanding and organization of the individual phrase in relation with performance practice resembles many recent theories of rhythm and performance methodologies. As have several recent theorists, Lussy sought the causes of expressive performance in the structure of the musical phrase, rather than a performer’s artistic intuition, and identified a tripartite classification of accent. The purpose of this study is to adapt and expand the application of Lussy’s theory of …

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The Worlds Of Agriculture In Asia : Agricultural And Economic Development, Lorna Econg Amrinto Jan 2014

The Worlds Of Agriculture In Asia : Agricultural And Economic Development, Lorna Econg Amrinto

LSU Doctoral Dissertations

The agro-fundamentalists consider agriculture as the engine of growth while agro-pessimists argue that economic growth causes agricultural productivity. It is the main engine of growth in agriculture-based countries; less important in transforming economies; and plays the same role as other tradable sectors in urbanized countries (World Bank, 2008). This work revisits agriculture’s role in the development process within the experience of Asia where the majority of the population heavily depends on agriculture. Chapter 2 presents the results of causality tests between agriculture and economic growth in bivariate systems using the TYDL methodology. For some of agriculture-based Asia (Bhutan, Lao, Cambodia …

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A Standardized Ultrasonography Classification For Channel Catfish Ovarian Development, Noel D. Novelo Jan 2014

A Standardized Ultrasonography Classification For Channel Catfish Ovarian Development, Noel D. Novelo

LSU Doctoral Dissertations

The goal of this dissertation was to develop application of ultrasonography as a decision-making tool in genetic improvement programs for channel catfish Ictalurus punctatus. A literature review on the use of ultrasonography in fish reproduction generated a comprehensive reference data set intended to benefit existing and potential users. It exposed the need for reporting of instrument control settings and standardization of fish handling and imaging procedures. These issues were addressed from the onset of this work by assessing more than 6,300 channel catfish ovaries by use of initial fish handling and imaging procedures developed (2004-2005) at the Louisiana State University …

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Effects Of Dietary Conjugated Linoleic Acid Supplementation On Bovine Oocyte Lipid Metabolism, Lipid Composition And Embryo Cryotolerance, Cody Lee Bailey Jan 2014

Effects Of Dietary Conjugated Linoleic Acid Supplementation On Bovine Oocyte Lipid Metabolism, Lipid Composition And Embryo Cryotolerance, Cody Lee Bailey

LSU Doctoral Dissertations

Variation in cryotolerance exists between embryos from different animal breed, species and management conditions. Reduced tolerance to chilling and cryotolerance of oocytes and embryos has been associated with greater cytoplasmic lipids (Kim et al., 2001; Seidel, 2006). Previous studies in the cow have demonstrated nutrition-induced modification of follicular components. Trans-10, cis-12 conjugated linoleic acid (CLA) was identified as a potent inhibitor of milk fat synthesis in lactating cows (Baumgard et al., 2000) and inclusion of CLA in bovine embryo culture medium improved post-thaw embryo survival (Pereira et al., 2007). Dietary supplementation of cows with CLA could alter oocyte fatty acid …

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Synthesis And Evaluation Of C-Src Kinase Inhibitory Activity Of Pyridin-2(1h)-One Derivatives, Karam Chand, Suchita Prasad, Rakesh Tiwari, Amir Nasrolahi Shirazi, Sumit Kumar, Keykavous Parang, Sunil K. Sharma Jan 2014

Synthesis And Evaluation Of C-Src Kinase Inhibitory Activity Of Pyridin-2(1h)-One Derivatives, Karam Chand, Suchita Prasad, Rakesh Tiwari, Amir Nasrolahi Shirazi, Sumit Kumar, Keykavous Parang, Sunil K. Sharma

Pharmacy Faculty Articles and Research

Src kinase, a prototype member of the Src family of kinases (SFKs), is over-expressed in various human tumors, and has become a target for anticancer drug design. In this perspective, a series of eighteen 2-pyridone derivatives were synthesized and evaluated for their c-Src kinase inhibitory activity. Among them, eight compounds exhibited c-Src kinase inhibitory activity with IC50 value of less than 25 mu M. Compound 1-[2-(dimethylamino)ethyl]-5-(2-hydroxy-4-methoxybenzoyl)pyridin-2(1H)-one (36) exhibited the highest c-Src kinase inhibition with an IC50 value of 12.5 mu M. Furthermore, the kinase inhibitory activity of compound 36 was studied against EGFR, MAPK and PDK, however no significant activity …

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Bells In Tower At Evening Toll : A Performer's Guide To The Songs Of David P. Rossow On The Texts Of William Shakespeare And A. E. Housman For Baritone Voice And Piano, Matthew Joseph Daniels Jan 2014

Bells In Tower At Evening Toll : A Performer's Guide To The Songs Of David P. Rossow On The Texts Of William Shakespeare And A. E. Housman For Baritone Voice And Piano, Matthew Joseph Daniels

LSU Doctoral Dissertations

David P. Rossow (b. 1975) is a contemporary American composer and arranger of choral works, music for jazz ensemble, and most recently, songs for solo voice and piano. This document serves as a performer’s guide to Rossow’s songs for baritone/low male voice and piano, Three Shakespeare Sonnets and Three A.E. Housman Songs. Chapter 1 is comprised of relevant biographical information about the composer from early childhood to present (2014). Chapters 2 and 3 are performance guides to Three Shakespeare Sonnets and Three A.E. Housman Songs, respectively. Included in these chapters are the following: date of composition; source of poetry; harmonic …

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Redefining Internal Audit Performance: Impact On Corporate Governance, Razimah Binti Abdullah Jan 2014

Redefining Internal Audit Performance: Impact On Corporate Governance, Razimah Binti Abdullah

Theses: Doctorates and Masters

One of the preventive measures to situations akin to world financial crises increasingly forwarded is effective internal audit function (IAF) (e.g., Imhoff, 2003; Mohamad & Muhamad Sori, 2011). Internal audit, a component of corporate governance, continues to evolve due to changes in business strategies and requirements placed on it by legislators. The roles of internal auditors and audit committees (ACs), the key personnel in IAFs, are changing to a more value-added approach as business strategies move towards corporate sustainability and organisational excellence. Suggestions forwarded to improve the performance or determining the quality of IAF include effective involvement of ACs in …

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Fatherhood In Brazil, Bangladesh, Russia, Japan, And Australia, David W. Shwalb, Barbara J. Shwalb Jan 2014

Fatherhood In Brazil, Bangladesh, Russia, Japan, And Australia, David W. Shwalb, Barbara J. Shwalb

Online Readings in Psychology and Culture

This article illustrates that the roles of fathers are highly variable and context-dependent. Research data from five diverse societies (Brazil, Bangladesh, Russia, Japan, and Australia) show that fathers, fathering, and fatherhood differ within societies according to eight types of contextual influence. Examples are provided of each contextual factor: (1) geographical location (e.g., dispersion of fathers across huge land masses in Russia and Australia; impact of dense populations in Japan and Bangladesh); (2) long-term historical legacies (centuries of patriarchy in Brazil) and short-term historical events (fall of communism in Russia); (3) family characteristics (joint, extended families of Bangladesh; small Japanese families); …

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Contrasting Biogeochemical Cycles Of Cobalt In The Surface Western Atlantic Ocean, Gabrial Dulaquais, Marie Boye, Rob Middag, Stephanis Owens, Viene Puigcorbe, Ken Buesseler, Pere Masque´, Hein J. De Baar, Xavier Carton Jan 2014

Contrasting Biogeochemical Cycles Of Cobalt In The Surface Western Atlantic Ocean, Gabrial Dulaquais, Marie Boye, Rob Middag, Stephanis Owens, Viene Puigcorbe, Ken Buesseler, Pere Masque´, Hein J. De Baar, Xavier Carton

Research outputs 2014 to 2021

Dissolved cobalt (DCo; 0.2μm; 10%) to the DCo stock of the mixed layer in the equatorial and north subtropical domains. Biotic and abiotic processes as well as the physical terms involved in the biogeochemical cycle of Co were defined and estimated. This allowed establishing the first global budget of DCo for the upper 100m in the western Atlantic. The biological DCo uptake flux was the dominant sink along the section, as reflected by the overall nutrient-type behavior of DCo. The regeneration varied widely within the different biogeochemical domains, accounting for 10% of the DCo-uptake rate in the subarctic gyre and …

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Higher Breakfast Glycaemic Load Is Associated With Increased Metabolic Syndrome Risk, Including Lower Hdl-Cholesterol Concentrations And Increased Tag Concentrations, In Adolescent Girls, Analise Nicholl, Mary Du Heaume, Trevor A. Mori, Lawrence J. Beilin, Wendy H. Oddy, Alexandra P. Bremner, Therese A. O'Sullivan Jan 2014

Higher Breakfast Glycaemic Load Is Associated With Increased Metabolic Syndrome Risk, Including Lower Hdl-Cholesterol Concentrations And Increased Tag Concentrations, In Adolescent Girls, Analise Nicholl, Mary Du Heaume, Trevor A. Mori, Lawrence J. Beilin, Wendy H. Oddy, Alexandra P. Bremner, Therese A. O'Sullivan

Research outputs 2014 to 2021

Almost all previous studies examining the associations between glycaemic load (GL) and metabolic syndrome risk have used a daily GL value. The daily value does not distinguish between peaks of GL intake over the day, which may be more closely associated with the risk of the metabolic syndrome. The aim of the present study was to investigate the cross-sectional associations between daily and mealtime measures of GL and metabolic syndrome risk, including metabolic syndrome components, in adolescents. Adolescents participating in the 14-year follow-up of the Western Australian Pregnancy Cohort (Raine) Study completed 3 d food records and metabolic assessments. Breakfast …

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Identification Of Unknowns Within A Probabilistic System: The Diagnostic Value Of Attributes, D W. Goodall Jan 2014

Identification Of Unknowns Within A Probabilistic System: The Diagnostic Value Of Attributes, D W. Goodall

Research outputs 2014 to 2021

Using a data base underpinned by probability considerations in which a variety of attributes, some of which may be quantitative, are recorded for a number of “operational taxonomic units” (OTUs), a key system is described by which an unnamed specimen may quickly be identified. The concept of “diagnostic power” is introduced, by which each attribute is evaluated in terms of its potential contribution to identifying the unnamed specimen. Besides coverage of different types of attributes and the introduction of “diagnostic power”, the system has the advantages of incorporating multiple values of an attribute for each OTU and offering short-cuts to …

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Characterizing The Resolvability Of Real Superluminescent Diode Sources For Application To Optical Coherence Tomography Using A Low Coherence Interferometry Model, Paul V. Jansz, Steven Richardson, Graham Wild, Steven Hinckley Jan 2014

Characterizing The Resolvability Of Real Superluminescent Diode Sources For Application To Optical Coherence Tomography Using A Low Coherence Interferometry Model, Paul V. Jansz, Steven Richardson, Graham Wild, Steven Hinckley

Research outputs 2014 to 2021

The axial resolution is a critical parameter in determining whether optical coherent tomography (OCT) can be used to resolve specific features in a sample image. Typically, measures of resolution have been attributed to the light source characteristics only, including the coherence length and the point spread function (PSF) width of the OCT light sources. The need to cost effectively visualize the generated PSF and OCT cross-correlated interferogram (A-scan) using many OCT light sources have led to the extrinsic evolution of the OCT simulation model presented. This research indicated that empirical resolution in vivo, as well as depending on the light …

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Regulation Of Human Pax6 Expression By Mir-7, M Needhamsen, Robert B. White, Keith M. Giles, Sarah A. Dunlop, Meghan G. Thomas Jan 2014

Regulation Of Human Pax6 Expression By Mir-7, M Needhamsen, Robert B. White, Keith M. Giles, Sarah A. Dunlop, Meghan G. Thomas

Research outputs 2014 to 2021

The paired box gene 6 (PAX6) is a powerful mediator of eye and brain organogenesis whose spatiotemporal expression is exquisitely controlled by multiple mechanisms, including post-transcriptional regulation by microRNAs (miRNAs). In the present study, we use bioinformatic predictions to identify three candidate microRNA-7 (miR-7) target sites in the human PAX6 3′ untranslated region (3′-UTR) and demonstrate that two of them are functionally active in a human cell line. Furthermore, transient transfection of cells with synthetic miR-7 inhibits PAX6 protein expression but does not alter levels of PAX6 mRNA, suggesting that miR-7 induces translational repression of PAX6. Finally, a comparison of …

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Implementing An Interdisciplinary Student Centric Approach To Work-Integrated Learning, Gary Marchioro, Maria M. Ryan, Tim Perkins Jan 2014

Implementing An Interdisciplinary Student Centric Approach To Work-Integrated Learning, Gary Marchioro, Maria M. Ryan, Tim Perkins

Research outputs 2014 to 2021

This paper describes the implementation of an innovative approach to work-integrated learning using interdisciplinary projects within a university Faculty of Business. Further, it discusses the implementation of integrated and authentic assessments involving academic units in the marketing, urban planning and business communication disciplines. The authors reflect on issues involved with the introduction of interdisciplinary teaching and learning strategies, representing a shift from traditional silo approaches in tertiary education. The paper considers how a student-centered learning approach can support innovation in higher education. It highlights the importance of providing students with an integrated, in situ approach to learning within the context …

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Factors Influencing Pacing In Triathlon, Sam Shi Xuan Wu, Jeremiah P. Peiffer, Jeanick Brisswalter, Kazunori Nosaka, Chris Abbiss Jan 2014

Factors Influencing Pacing In Triathlon, Sam Shi Xuan Wu, Jeremiah P. Peiffer, Jeanick Brisswalter, Kazunori Nosaka, Chris Abbiss

Research outputs 2014 to 2021

Triathlon is a multisport event consisting of sequential swim, cycle, and run disciplines performed over a variety of distances. This complex and unique sport requires athletes to appropriately distribute their speed or energy expenditure (ie, pacing) within each discipline as well as over the entire event. As with most physical activity, the regulation of pacing in triathlon may be influenced by a multitude of intrinsic and extrinsic factors. The majority of current research focuses mainly on the Olympic distance, whilst much less literature is available on other triathlon distances such as the sprint, half-Ironman, and Ironman distances. Furthermore, little is …

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A Combination Of Physical Activity And Computerized Brain Training Improves Verbal Memory And Increases Cerebral Glucose Metabolism In The Elderly, Tejal Shah, Giuseppe Verdile, Hamid R. Sohrabi, A Campbell, E Putland, C Cheetham, S Dhaliwal, M Weinborn, P Maruff, D Darby, Ralph N. Martins Jan 2014

A Combination Of Physical Activity And Computerized Brain Training Improves Verbal Memory And Increases Cerebral Glucose Metabolism In The Elderly, Tejal Shah, Giuseppe Verdile, Hamid R. Sohrabi, A Campbell, E Putland, C Cheetham, S Dhaliwal, M Weinborn, P Maruff, D Darby, Ralph N. Martins

Research outputs 2014 to 2021

Physical exercise interventions and cognitive training programs have individually been reported to improve cognition in the healthy elderly population; however, the clinical significance of using a combined approach is currently lacking. This study evaluated whether physical activity (PA), computerized cognitive training and/or a combination of both could improve cognition. In this nonrandomized study, 224 healthy community-dwelling older adults (60-85 years) were assigned to 16 weeks home-based PA (n = 64), computerized cognitive stimulation (n = 62), a combination of both (combined, n = 51) or a control group (n = 47). Cognition was assessed using the Rey Auditory Verbal Learning …

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Decreased Serum Zinc Is An Effect Of Ageing And Not Alzheimer's Disease, Alan Rembach, Dominic Hare, James Doecke, Samantha Burnham, Irene Volitakis, Christopher Fowler, Robert Cherny, Catriona Mclean, Rudolf Grimm, Ralph N. Martins, David Ames, Colin Masters, Ashley Bush, Blaine Roberts Jan 2014

Decreased Serum Zinc Is An Effect Of Ageing And Not Alzheimer's Disease, Alan Rembach, Dominic Hare, James Doecke, Samantha Burnham, Irene Volitakis, Christopher Fowler, Robert Cherny, Catriona Mclean, Rudolf Grimm, Ralph N. Martins, David Ames, Colin Masters, Ashley Bush, Blaine Roberts

Research outputs 2014 to 2021

We examined the distribution of zinc in the periphery (erythrocytes and serum) in a large, well-characterised cohort, the Australian Imaging, Biomarkers and Lifestyle (AIBL) study, in order to determine if there is systemic perturbation in zinc homeostasis in Alzheimer’s disease (AD). We observed an age dependent decrease in serum zinc of approximately 0.4% per year. When correcting for the age dependent decline in serum zinc no significant difference between healthy controls (HC), mildly cognitively impaired (MCI) or AD subjects was observed.

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Local And Semi-Global Feature-Correlative Techniques For Face Recognition, Asaad Noori Hashim, Zahir Hussain Jan 2014

Local And Semi-Global Feature-Correlative Techniques For Face Recognition, Asaad Noori Hashim, Zahir Hussain

Research outputs 2014 to 2021

Face recognition is an interesting field of computer vision with many commercial and scientific applications. It is considered as a very hot topic and challenging problem at the moment. Many methods and techniques have been proposed and applied for this purpose, such as neural networks, PCA, Gabor filtering, etc. Each approach has its weaknesses as well as its points of strength. This paper introduces a highly efficient method for the recognition of human faces in digital images using a new feature extraction method that combines the global and local information in different views (poses) of facial images. Feature extraction techniques …

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