Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 30 of 34

Full-Text Articles in Life Sciences

Taking A Cat Map: Genome Analysis By Supercomputer, Jose V. Lopez Jul 2016

Taking A Cat Map: Genome Analysis By Supercomputer, Jose V. Lopez

Jose V. Lopez

No abstract provided.


Taking A Cat Map: Genome Analysis By Supercomputer, Jose V. Lopez Jul 2016

Taking A Cat Map: Genome Analysis By Supercomputer, Jose V. Lopez

Jose V. Lopez

No abstract provided.


Taking A Cat Map: Genome Analysis By Supercomputer, Jose V. Lopez Jul 2016

Taking A Cat Map: Genome Analysis By Supercomputer, Jose V. Lopez

Jose V. Lopez

No abstract provided.


Taking A Cat Map: Genome Analysis By Supercomputer, Jose V. Lopez Jul 2016

Taking A Cat Map: Genome Analysis By Supercomputer, Jose V. Lopez

Jose V. Lopez

No abstract provided.


The Cytoskeletal System Of Nucleated Erythrocytes. I. Composition And Function Of Major Elements, William D. Cohen, Diana Bartelt, Richard Jaeger, George M. Langford, Iris Nemhauser Sep 2015

The Cytoskeletal System Of Nucleated Erythrocytes. I. Composition And Function Of Major Elements, William D. Cohen, Diana Bartelt, Richard Jaeger, George M. Langford, Iris Nemhauser

George M Langford

We have studied the dogfish erythrocyte cytoskeletal system, which consists of a marginal band of microtubules (MB) and trans-marginal band material (TBM). The TBM appeared in whole mounts as a rough irregular network and in thin sections as a surface-delimiting layer completely enclosing nucleus and MB. In cells incubated at 0 degrees C for 30 min or more, the MB disappeared but the TBM remained. MB reassembly occurred with rewarming, and was inhibited by colchicine. Flattened elliptical erythrocyte morphology was retained even when MBs were absent. Total solubilization of MB and TBM at low pH, or dissolution of whole anucleate ...


Personality And Religious Values Among Adolescents: A Three-Wave Longitudinal Analysis., Patrick C. Heaven, Joseph V. Ciarrochi Jul 2015

Personality And Religious Values Among Adolescents: A Three-Wave Longitudinal Analysis., Patrick C. Heaven, Joseph V. Ciarrochi

joseph Ciarrochi

Using three waves of data, we assessed the relationships between endorsement of religious values, some of the major personality dimensions, and social and emotional well-being amongst teenagers. Participants were 784 high school students at Time 1 (382 manles and 394 females; 8 did not indicate their gender) and 563 provided data at each of Time 1, Time 2 and Time 3.


Self-Nominated Peer Crowds, School Achievement, And Psychological Adjustment In Adolescents: Longitudinal Analysis, Patrick Heaven, Joseph Ciarrochi, Wilhelmina Vialle Jul 2015

Self-Nominated Peer Crowds, School Achievement, And Psychological Adjustment In Adolescents: Longitudinal Analysis, Patrick Heaven, Joseph Ciarrochi, Wilhelmina Vialle

joseph Ciarrochi

No abstract provided.


Perceptions Of Parental Styles And Eysenckian Psychoticism In Youth: A Prospective Analysis, Patrick Heaven, Joseph Ciarrochi Jul 2015

Perceptions Of Parental Styles And Eysenckian Psychoticism In Youth: A Prospective Analysis, Patrick Heaven, Joseph Ciarrochi

joseph Ciarrochi

No abstract provided.


Recreation Impact Monitoring Analysis And Protocol Development, Glacier Bay National Park, K. C. Goonan, Christopher Monz, B. Bruno, T. Lewis May 2015

Recreation Impact Monitoring Analysis And Protocol Development, Glacier Bay National Park, K. C. Goonan, Christopher Monz, B. Bruno, T. Lewis

Christopher Monz

No abstract provided.


Prevalence And Effects Of Mycotoxins On Poultry Health And Performance, And Recent Development In Mycotoxin Counteracting Strategies, G. R. Murugesan, D Ledoux, K Naehrer, F Berthiller, T Applegate, B Grenier, T Phillips, G Schatzmayr Dec 2014

Prevalence And Effects Of Mycotoxins On Poultry Health And Performance, And Recent Development In Mycotoxin Counteracting Strategies, G. R. Murugesan, D Ledoux, K Naehrer, F Berthiller, T Applegate, B Grenier, T Phillips, G Schatzmayr

G. R. Murugesan

Extensive research over the last couple of decades has made it obvious that mycotoxins are commonly prevalent in majority of feed ingredients. A worldwide mycotoxin survey in 2013 revealed 81 % of around 3,000 grain and feed samples analyzed had at least one mycotoxin which was higher than the ten-year average (from 2004 to 2013) of 76% in a total of 25,944 samples. The considerable increase in the number of positive samples in 2013 may be due to the improvements in detection methods and their sensitivity. The recently developed liquid chromatography coupled to (tandem) mass spectrometry allows the inclusion ...


Muscles Within Muscles: A Mechanomyographic Analysis Of Muscle Segment Contractile Properties Within Human Gluteus Maximus, Darryl Mcandrew, John Brown, Mark Gorelick Aug 2014

Muscles Within Muscles: A Mechanomyographic Analysis Of Muscle Segment Contractile Properties Within Human Gluteus Maximus, Darryl Mcandrew, John Brown, Mark Gorelick

Darryl J McAndrew

No abstract provided.


Doing Discourse Analysis, Gordon R. Waitt Jul 2013

Doing Discourse Analysis, Gordon R. Waitt

Gordon Waitt

My hope in writing this chapter is to generate enthusiasm for geographical research employing discourse analysis. My intention is to provide some advice on doing discourse analysis to facilitale the design of research. I first outline why some geographers have been inspired by this approach. I suggest how Foucauldian discourse analysis is a break from other critical methods applied to textual analysis, including content analysis, semiology, and iconography. The theoretical underpinnings of the method provided by Michel Foucault, a French poststructuralist philosopher, is a key source of difference. I therefore condense Michel Foucault's contribution to discourse analysis by sketching ...


Newspaper Coverage Of Drug Policy: An Analysis Of Pre-Election Reporting Of The Greens' Drug Policy In Australia, Danika Hall, Sandra C. Jones, Fiona Cowlin Jun 2013

Newspaper Coverage Of Drug Policy: An Analysis Of Pre-Election Reporting Of The Greens' Drug Policy In Australia, Danika Hall, Sandra C. Jones, Fiona Cowlin

Sandra Jones

Introduction and Aims. With the headline 'Ecstasy Over The Counter' in a popular daily newspaper, the debate on drug policy officially entered the arena of the 2003 New South Wales (Australia) State Election. The debate resurfaced in the lead-up to the 2004 Australian Federal Election. This paper analyses the pre-election coverage of drug policy issues in four Australian newspapers. Design and Methods. Four high-circulation daily newspapers were monitored for a one-month period prior to both elections and analysed for their coverage of drug policy, particularly with respect to the policy of the Greens. Results. The newspapers took different perspectives on ...


Disease Awareness Advertisements In Australian Magazines: An Analysis Of Content And Compliance, Danika Hall, Sandra C. Jones, Donald C. Iverson Jun 2013

Disease Awareness Advertisements In Australian Magazines: An Analysis Of Content And Compliance, Danika Hall, Sandra C. Jones, Donald C. Iverson

Sandra Jones

In Australia, Direct to Consumer Advertising (DTCA) of prescription medicine is prohibited; however pharmaceutical companies can communicate directly with consumers via Disease Awareness Advertising (DAA). DAA can contain information about a disease including treatment information, but cannot mention the name of a particular product or brand. DAA is currently regulated by the industry body Medicines Australia (MA). In the current study, content analysis methodology was used to determine the extent and nature of DAA in popular Australian women’s magazines which were monitored for 12 months. Findings relating to the use of visual appeals in the imagery and rational appeals ...


Wearable Technology For The Real-Time Analysis Of Sweat During Exercise, D Morris, B Schazmann, Y Wu, C Fay, Stephen T. Beirne, C Slater, King-Tong Lau, Gordon G. Wallace, Dermot Diamond Mar 2013

Wearable Technology For The Real-Time Analysis Of Sweat During Exercise, D Morris, B Schazmann, Y Wu, C Fay, Stephen T. Beirne, C Slater, King-Tong Lau, Gordon G. Wallace, Dermot Diamond

Gordon Wallace

-Textile based sensors which can be used to measure the chemical composition of bodily fluids represents a major advancement in the area of wearable technology. BIOTEX is an EU funded project aiming to develop such sensors with a particular interest in monitoring perspiration. A textile based fluid handling system has been developed for sample collection and transport. Sodium, conductivity and pH sensors have also been developed. This paper details the integration and testing of these sensors. Results show that the developed system can collect and analyze sweat in real time during exercise and transmit this data wirelessly to a remote ...


Molecular Dynamics Analysis Of Apolipoprotein-D - Lipid Hydroperoxide Interactions: Mechanism For Selective Oxidation Of Met-93, Aaron J. Oakley, Surabhi Bhatia, Heath Ecroyd, Brett Garner Dec 2012

Molecular Dynamics Analysis Of Apolipoprotein-D - Lipid Hydroperoxide Interactions: Mechanism For Selective Oxidation Of Met-93, Aaron J. Oakley, Surabhi Bhatia, Heath Ecroyd, Brett Garner

Heath Ecroyd

Background: Recent studies suggest reduction of radical-propagating fatty acid hydroperoxides to inert hydroxides by interaction with apolipoprotein-D (apoD) Met93 may represent an antioxidant function for apoD. The nature and structural consequences of this selective interaction are unknown. Methodology/Principal Findings: Herein we used molecular dynamics (MD) analysis to address these issues. Longtimescale simulations of apoD suggest lipid molecules are bound flexibly, with the molecules free to explore multiple conformations in a binding site at the entrance to the classical lipocalin ligand-binding pocket. Models of 5s- 12s- and 15s hydroperoxyeicosatetraenoic acids were created and the lipids found to wrap around Met93 ...


The Analysis Of Pattern Change In Intron Sequences, Jinda Kongcharoen, Yan-Xia Lin, Rachel Caldwell, Yiren Yang, Ren Zhang Nov 2012

The Analysis Of Pattern Change In Intron Sequences, Jinda Kongcharoen, Yan-Xia Lin, Rachel Caldwell, Yiren Yang, Ren Zhang

Associate Professor Yan-Xia Lin

The Generalized Bernoulli Modeling approach is used to analyze the pattern change in intron sequences of a model plant species Arabidopsis thaliana. The influence of the intron length and the number of GC on the intron sequence pattern changes is examined. Two other gene properties, the gene expression level and the protein function encoded are also assessed. Among the random sampled intron sequences,10.71% of them have been identified to have sequence pattern change. Our study shows that the number of GC and the intron length significantly influence the intron pattern change while the gene expression level and the ...


Direct Detection Of Additives And Degradation Products From Polymers By Liquid Extraction Surface Analysis Employing Chip-Based Nanospray Mass Spectrometry, Martin Paine, Phillip Barker, Shane A. Maclaughlin, Todd W. Mitchell, Stephen J. Blanksby Oct 2012

Direct Detection Of Additives And Degradation Products From Polymers By Liquid Extraction Surface Analysis Employing Chip-Based Nanospray Mass Spectrometry, Martin Paine, Phillip Barker, Shane A. Maclaughlin, Todd W. Mitchell, Stephen J. Blanksby

Stephen Blanksby

Rationale: Polymer-based surface coatings in outdoor applications experience accelerated degradation due to exposure to solar radiation, oxygen and atmospheric pollutants. These deleterious agents cause undesirable changes to the polymers aesthetic and mechanical properties reducing its lifetime. The use of antioxidants such as hindered amine light stabilisers (HALS) retard these degradative processes, however, mechanisms for HALS action and polymer degradation are poorly understood. Methods: Detection of the hindered amine light stabiliser (HALS) TINUVIN®123 (bis (1-octyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate) and the polymer degradation products directly from a polyester-based coil coating was achieved by liquid extraction surface analysis (LESA) coupled to ...


A Petrological, Mineralogical And Geochemical Analysis Of Listwaenite Alteration At Spring Creek Bingara In The Great Serpentinite Belt, New England, Nsw, E Holcroft, Solomon Buckman, I Neuss Sep 2012

A Petrological, Mineralogical And Geochemical Analysis Of Listwaenite Alteration At Spring Creek Bingara In The Great Serpentinite Belt, New England, Nsw, E Holcroft, Solomon Buckman, I Neuss

Solomon Buckman Dr.

No abstract provided.


Analysis Of The Costs Of A Large Prevention Trial, Nicole Urban, Steven Self, Larry Kessler, Ross Prentice, Maureen Henderson, Donald Iverson, Donovan Thompson, David Byar, William Insull, Sherwood Gorbach, C Clifford, Susan Goldman Jun 2012

Analysis Of The Costs Of A Large Prevention Trial, Nicole Urban, Steven Self, Larry Kessler, Ross Prentice, Maureen Henderson, Donald Iverson, Donovan Thompson, David Byar, William Insull, Sherwood Gorbach, C Clifford, Susan Goldman

Don C. Iverson

Total direct costs of the Women's Health Trial (WHT), alarge multicenter preventiontrial, were reduced by more than 50% by means of research costanalysis conducted during the trial design phase. The unit costs of specific trial activities were estimated so that total direct costs of the trial could be predicted from design parameters. The relative costs of screening, treatment, and follow-up, and the fixed costs associated with each clinical center in a multicenter preventiontrial were taken into account. Direct costs of the WHT were reduced from $195 million to $95 million by refinement of the trial protocol, selection of an ...


An Overview And Analysis Of The Health Style Campaign, Mary Davis, Donald Iverson Jun 2012

An Overview And Analysis Of The Health Style Campaign, Mary Davis, Donald Iverson

Don C. Iverson

In 1981, the Office of Health Information and Health Promotion of the U.S. Department of Health and Human Services launched a national health promotion media campaign titled Health Style. The purposes of the Health Style campaign were: (1) to increase public awareness of the effects of life-style on health; (2) to enable persons to assess which life-style changes would be most conducive to their health; (3) to stimulate information-seeking behavior and; (4) to foster the development of local health promotion activities and referral networks. The campaign was implemented in nine test communities across the United States. This article: (1 ...


Disease Awareness Advertisements In Australian Magazines: An Analysis Of Content And Compliance, Danika Hall, Sandra C. Jones, Donald C. Iverson Jun 2012

Disease Awareness Advertisements In Australian Magazines: An Analysis Of Content And Compliance, Danika Hall, Sandra C. Jones, Donald C. Iverson

Don C. Iverson

In Australia, Direct to Consumer Advertising (DTCA) of prescription medicine is prohibited; however pharmaceutical companies can communicate directly with consumers via Disease Awareness Advertising (DAA). DAA can contain information about a disease including treatment information, but cannot mention the name of a particular product or brand. DAA is currently regulated by the industry body Medicines Australia (MA). In the current study, content analysis methodology was used to determine the extent and nature of DAA in popular Australian women’s magazines which were monitored for 12 months. Findings relating to the use of visual appeals in the imagery and rational appeals ...


Content Analysis Of Disease Awareness Advertisements In Popular Australian Women's Magazines, Danika V. Hall, Sandra C. Jones, Donald C. Iverson Jun 2012

Content Analysis Of Disease Awareness Advertisements In Popular Australian Women's Magazines, Danika V. Hall, Sandra C. Jones, Donald C. Iverson

Don C. Iverson

Objective: To examine the nature of disease awareness advertising (DAA). Design: Therapeutic advertisements in six popular Australian women’s magazines were monitored between April 2006 and March 2007. A subset of advertisements was included in the study based on criteria derived from a definition of DAA. Unique advertisements were analysed by four independent coders. Main outcome measures: Types of advertisements and their sponsors, the types of disease information present, and the persuasive techniques utilised. Results: Of 711 advertisements identified, 60 met the inclusion criteria for DAA, and 30 of these were unique. Over one-third of the advertisements were classified as ...


Clinician Optimism: Development And Psychometric Analysis Of A Scale For Mental Health Clinicians, Mitchell K. Byrne, Nichole L. Sullivan, Stephen J. Elsom May 2012

Clinician Optimism: Development And Psychometric Analysis Of A Scale For Mental Health Clinicians, Mitchell K. Byrne, Nichole L. Sullivan, Stephen J. Elsom

Mitchell K Byrne

Clinician optimism is an important factor in achieving treatment outcomes in psychotherapy. Currently there are no measures of mental health clinician optimism which report substantial psychometric validation. This study sought to assesses the validity and reliability of the Therapeutic Optimism Scale (TOS). 223 mental health clinicians working in a range of clinical settings were administered the TOS and convergent and discriminate validity were established. Test-retest reliability was established over a period of one month. The Therapeutic Optimism Scale was found to achieve acceptable reliability (Chronbach's alpha = .68) and yielded consistent scores over a one month period (r = .68, p ...


Essays In Realism: Analysis And Discussion, Nigel Mackay, Agnes Petocz Feb 2012

Essays In Realism: Analysis And Discussion, Nigel Mackay, Agnes Petocz

Nigel Mackay

No abstract provided.


Analysis Of The Mechanism By Which Calcium Negatively Regulates The Tyrosine Phosphorylation Cascade Associated With Sperm Capacitation, Mark Baker, Louise Hethrington, Heath Ecroyd, Shaun Roman, Robert Aitken Dec 2011

Analysis Of The Mechanism By Which Calcium Negatively Regulates The Tyrosine Phosphorylation Cascade Associated With Sperm Capacitation, Mark Baker, Louise Hethrington, Heath Ecroyd, Shaun Roman, Robert Aitken

Heath Ecroyd

The capacitation of mammalian spermatozoa involves the activation of a cAMP-mediated signal transduction pathway that drives tyrosine phosphorylation via mechanisms that are unique to this cell type. Controversy surrounds the impact of extracellular calcium on this process, with positive and negative effects being recorded in independent publications. We clearly demonstrate that the presence of calcium in the external medium decreases tyrosine phosphorylation in both human and mouse spermatozoa. Under these conditions, a rise in intracellular pH was recorded, however, this event was not responsible for the observed changes in phosphotyrosine expression. Rather, the impact of calcium on tyrosine phosphorylation in ...


Content Analysis Of Disease Awareness Advertisements In Popular Australian Women's Magazines, Danika V. Hall, Sandra C. Jones, Donald C. Iverson Dec 2010

Content Analysis Of Disease Awareness Advertisements In Popular Australian Women's Magazines, Danika V. Hall, Sandra C. Jones, Donald C. Iverson

Sandra Jones

Objective: To examine the nature of disease awareness advertising (DAA). Design: Therapeutic advertisements in six popular Australian women’s magazines were monitored between April 2006 and March 2007. A subset of advertisements was included in the study based on criteria derived from a definition of DAA. Unique advertisements were analysed by four independent coders. Main outcome measures: Types of advertisements and their sponsors, the types of disease information present, and the persuasive techniques utilised. Results: Of 711 advertisements identified, 60 met the inclusion criteria for DAA, and 30 of these were unique. Over one-third of the advertisements were classified as ...


Model-Based Compartmental Analysis Indicates A Reduced Mobilization Of Hepatic Vitamin A During Inflammation In Rats, Sin H. Gieng, Michael H. Green, Joanne B. Green, Francisco J. Rosales Jan 2007

Model-Based Compartmental Analysis Indicates A Reduced Mobilization Of Hepatic Vitamin A During Inflammation In Rats, Sin H. Gieng, Michael H. Green, Joanne B. Green, Francisco J. Rosales

John Sin H. Gieng

Vitamin A (VA) kinetics was studied in rats with marginal VA stores before, during, and after inflammation. Rats received orally [11,12-3H(N)]retinol ([3H]VA; day 0), and inflammation was induced on day 21 with lipopolysacchride (LPS) for 3 days (n = 5) or recombinant human interleukin-6 (rhIL-6) for 7 days (n = 5). Both the fraction of [3H]VA and retinol concentrations in plasma were reduced significantly by LPS or rhIL-6. Compartmental analysis using the Windows version of Simulation, Analysis, and Modeling software was applied to group mean data, and non-steady-state models were developed. After absorption ...


Application Of Broken-Line Analysis To Assess Floor Space Requirements Of Nursery And Grower-Finisher Pigs Expressed On An Allometric Basis, Anna K. Johnson, H. W. Gonyou, M. C. Brumm, E. Bush, J. Deen, S. A. Edwards, T. Fangman, J. J. Mcglone, M. Meunier-Salaun, R. B. Morrison, H. Spoolder, P. L. Sundberg Jan 2006

Application Of Broken-Line Analysis To Assess Floor Space Requirements Of Nursery And Grower-Finisher Pigs Expressed On An Allometric Basis, Anna K. Johnson, H. W. Gonyou, M. C. Brumm, E. Bush, J. Deen, S. A. Edwards, T. Fangman, J. J. Mcglone, M. Meunier-Salaun, R. B. Morrison, H. Spoolder, P. L. Sundberg

Anna K. Butters-Johnson

Few issues in swine production are as complex as floor space allowances. One method for pork producers to calculate floor space allowance (A) is to convert BW into a 2-dimensional concept yielding an expression of A = k * BW(0.667). Data on ADG, ADFI, and G:F were obtained from published peer-reviewed studies. Five data sets were created: A = grower-finisher pigs, fully slatted floors, and consistent group size; B = grower-finisher pigs and fully slatted floors (group size did not need to be consistent); C = grower-finisher pigs, partially slatted floors, and consistent group size; D = grower-finisher pigs, partially slatted floors (group ...


Comparative Vegetative Anatomy And Systematics Of Oncidiinae (Maxillarieae, Orchidaceae), William Louis Stern, Barbara S. Carlsward Jan 2006

Comparative Vegetative Anatomy And Systematics Of Oncidiinae (Maxillarieae, Orchidaceae), William Louis Stern, Barbara S. Carlsward

Barbara S. Carlsward

Subtribe Oncidiinae comprises a vegetatively heterogeneous assemblage of species that has persistently been incapable of organization. Anatomy was considered to be a possible means to resolve the perplexity of relationships amongst the constituent taxa. The consistent occurrence of a foliar hypodermis, homogeneous mesophyll, conical silica bodies in stegmata, and ubiquitous fibre bundles in leaves provides a matrix for linking the taxa, as do the parenchymatous pith and O-thickened endodermal cell walls in roots. However, the strict consensus of the 40 genera studied was completely unresolved, suggesting that vegetative characters alone are insufficient to assess the relationships amongst these taxa, a ...