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Patterns Of Demography For Rocky-Shore, Intertidal Invertebrates Approaching Their Geographical Range Limits: Tests Of The Abundant-Centre Hypothesis In South-Eastern Australia, Eszter Z. Hidas, David J. Ayre, Todd E. Minchinton 2010 University of Wollongong

Patterns Of Demography For Rocky-Shore, Intertidal Invertebrates Approaching Their Geographical Range Limits: Tests Of The Abundant-Centre Hypothesis In South-Eastern Australia, Eszter Z. Hidas, David J. Ayre, Todd E. Minchinton

Faculty of Science - Papers (Archive)

The abundant-centre hypothesis predicts that species' abundances peak at the centre of their geographical ranges and decline gradually towards their range limits. We tested predictions of this hypothesis for three rocky-shore, intertidal invertebrates with planktonic larvae (the whelk, Morula marginalba, the snail, Afrolittorina pyramidalis, and the barnacle, Tesseropora rosea) by quantifying their patterns of abundance and size, and inferring pulses of recruitment from size-frequency distributions, at multiple spatial scales spanning a 600-km region in south-eastern Australia and encompassing roughly the southern third of their geographical ranges. At the regional scale, abundances for all species were, as predicted, dramatically lower at ...


Genetic Structure And Dispersal Patterns Of The Invasive Psocid Liposcelis Decolor (Pearman) In Australian Grain Storage Systems, Katarina Maryann Mikac, N N. Fitzsimmons 2010 University of Wollongong

Genetic Structure And Dispersal Patterns Of The Invasive Psocid Liposcelis Decolor (Pearman) In Australian Grain Storage Systems, Katarina Maryann Mikac, N N. Fitzsimmons

Faculty of Science - Papers (Archive)

Microsatellite markers were used to investigate the genetic structure among invasive L. decolor populations from Australia and a single international population from Kansas, USA to determine patterns of dispersal. Six variable microsatellites displayed an average of 2.5-4.2 alleles per locus per population. Observed (H-O) heterozygosity ranged from 0.12-0.65 per locus within populations; but, in 13 of 36 tests, H-O was less than expected. Despite low levels of allelic diversity, genetic structure estimated as theta was significant for all pairwise comparisons between populations (theta = 0.05-0.23). Due to suspected null alleles at four loci, ENA (excluding ...


Functional Relationships Between Vegetation, Channel Morphology, And Flow Efficiency In An Alluvial (Anabranching) River, John D. Jansen, Gerald C. Nanson 2010 Stockholm University

Functional Relationships Between Vegetation, Channel Morphology, And Flow Efficiency In An Alluvial (Anabranching) River, John D. Jansen, Gerald C. Nanson

Faculty of Science - Papers (Archive)

Water and sediment flux interactions are examined in Magela Creek, an alluvial (anabranching) sand bed river in the northern Australian tropics. Dense riparian vegetation stabilizes the channels and floodplains thereby preventing erosional instability at flow depths up to 6.2 times bankfull and discharges up to 15 times bankfull. Narrow anabranching channels characterize > 92% of the alluvial reach and transport bed load more efficiently than short reaches of wide single-channels, yet overall 29 +/- 12% of the bed load is sequestered and the average vertical accretion rate is 0.41 +/- 0.17 mm yr (1) along the 12 km study reach ...


What Did Grinding Stones Grind? New Light On Early Neolithic Subsistence Economy In The Middle Yellow River Valley, China, Li Liu, Judith Field, Richard Fullagar, Sheahan Bestel, Xingcan Chen, Xiaolin Ma 2010 La Trobe University, Melbourne

What Did Grinding Stones Grind? New Light On Early Neolithic Subsistence Economy In The Middle Yellow River Valley, China, Li Liu, Judith Field, Richard Fullagar, Sheahan Bestel, Xingcan Chen, Xiaolin Ma

Faculty of Science - Papers (Archive)

Grinding stones have provided a convenient proxy for the arrival of agriculture in Neolithic China. Not any more. Thanks to high-precision analyses of use-wear and starch residue, the authors show that early Neolithic people were mainly using these stones to process acorns. This defines a new stage in the long transition of food production from hunter-gatherer to farmer.


The Biggest Losers, Richard G. Roberts, Barry Brook 2010 University of Wollongong

The Biggest Losers, Richard G. Roberts, Barry Brook

Faculty of Science - Papers (Archive)

No abstract provided.


Environmental And Socio-Economic Considerations For Aquaculture In Jervis Bay, Nsw, Alyssa Joyce, Ana M. Rubio, Pia C. Winberg 2010 University of Wollongong

Environmental And Socio-Economic Considerations For Aquaculture In Jervis Bay, Nsw, Alyssa Joyce, Ana M. Rubio, Pia C. Winberg

Faculty of Science - Papers (Archive)

No abstract provided.


Total Synthesis Of Uniflorine A, Casuarine, Australine, 3-Epi-Australine, And 3,7-Di-Epi-Australine From A Common Precursor, Thunwadee Ritthiwigrom, Anthony C. Willis, Stephen G. Pyne 2010 University of Wollongong

Total Synthesis Of Uniflorine A, Casuarine, Australine, 3-Epi-Australine, And 3,7-Di-Epi-Australine From A Common Precursor, Thunwadee Ritthiwigrom, Anthony C. Willis, Stephen G. Pyne

Faculty of Science - Papers (Archive)

A flexible method for the diastereoselective total synthesis of the pyrrolizidine alkaloids Uniflorine A, casuarine, australine, and 3-epi-australine and the unnatural epimer 3,7-di-epi-australine from a common chiral 2,5-dihydropyrrole precursor is described.


Evidence Of Solar And Tropical-Ocean Forcing Of Hydroclimate Cycles In Southeastern Australia For The Past 6500 Years, Hamish A. McGowan, Samuel K. Marx, Joshua Soderholm, John Denholm 2010 The University of Queensland

Evidence Of Solar And Tropical-Ocean Forcing Of Hydroclimate Cycles In Southeastern Australia For The Past 6500 Years, Hamish A. Mcgowan, Samuel K. Marx, Joshua Soderholm, John Denholm

Faculty of Science - Papers (Archive)

Evidence of solar and tropical‐ocean forcing of climate cycles has been found in numerous palaeoclimate records. Numerical modelling studies show physical mechanisms by which direct and indirect solar forcing may affect climate, while there is mounting evidence of solar forcing of tropical ocean‐atmosphere teleconnections. This study has developed a 6500 year record of dust deposition, a proxy for regional hydroclimate variability for the Snowy Mountains region of Australia. Spectral analysis of the record provides evidence of statistically significant cycles in dust deposition of 35–43 years, 62–73 years, 161 years and 2200 years. These correlate with variability ...


The Effect Of Concurrent Activation Potentiation On The Knee Extensor And Flexor Performance Of Men And Women, Luke Garceau, Erich Petushek, McKenzie Fauth, William Ebben 2010 Marquette University

The Effect Of Concurrent Activation Potentiation On The Knee Extensor And Flexor Performance Of Men And Women, Luke Garceau, Erich Petushek, Mckenzie Fauth, William Ebben

Exercise Science Faculty Research and Publications

This study evaluated the effect of remote voluntary contractions (RVC) during isometric and isokinetic knee flexion and extension tests and evaluated gender differences therein. Subject peak torque, rate of torque development, and power were assessed with a dynamometer in RVC and no RVC’s conditions. A two way mixed ANOVA with repeated measures for condition was used to evaluate the interaction between conditions and gender, and to assess the main effects. Main effects were evaluated with a paired samples t-test. Results revealed a significant interaction between all but one test condition and gender as well as significant main effects for ...


Dynamic Stabilization During The Landing Phase Of Plyometric Exercises, Erich Petushek, Luke Garceau, Tyler VanderZanden, Brad Wurm, Christina Feldmann, William Ebben 2010 Northern Michigan University

Dynamic Stabilization During The Landing Phase Of Plyometric Exercises, Erich Petushek, Luke Garceau, Tyler Vanderzanden, Brad Wurm, Christina Feldmann, William Ebben

Exercise Science Faculty Research and Publications

This study examined the differences in and the reliability of time to stabilization (TTS) of several plyometric exercises. Twenty six men performed a variety of plyometric exercises representing a continuum of intensities of landing instability, including line hops, cone hops, squat jumps, tuck jumps, countermovement jumps, dumbbell countermovement jumps, and single leg countermovement jumps on a force platform. A repeated measures ANOVA with Bonferroni post hoc corrections was used to evaluate the differences in TTS between plyometric exercises. Practitioners who use plyometrics to train dynamic stability and balance should create programs that progress the intensity of the exercises based on ...


Kinetic Quantification Of Plyometric Take Off, Flight, And Landing Characteristics, William Ebben, Tyler VanderZanden, Brad Wurm, Luke Garceau, Christina Feldmann, Erich Petushek 2010 Marquette University

Kinetic Quantification Of Plyometric Take Off, Flight, And Landing Characteristics, William Ebben, Tyler Vanderzanden, Brad Wurm, Luke Garceau, Christina Feldmann, Erich Petushek

Exercise Science Faculty Research and Publications

This study assessed the kinetic characteristics of a variety of plyometric exercises and assessed gender differences therein. Twenty-six men and 23 women performed a variety of plyometric exercises including line hops, 15.24 cm cone hops, squat jumps, tuck jumps, countermovement jumps, loaded countermovement jumps equal to 30% of 1 RM squat, depth jumps normalized to the subjects jump height, and single leg jumps. All plyometric exercises were performed on a force platform. Outcome variables associated with the takeoff, airborne, and landing phase of each plyometric were assessed including the peak ground reaction force during takeoff, time to takeoff, jump ...


Antagonist Conditioning Contractions Impair Agonist Functioning, Luke Garceau, Aaron Gray, McKenzie Fauth, Phillip Hanson, Brittni Hsu, Tejin Yoon, Chris Szalkowski, Brittney Lutsch, William Ebben 2010 Marquette University

Antagonist Conditioning Contractions Impair Agonist Functioning, Luke Garceau, Aaron Gray, Mckenzie Fauth, Phillip Hanson, Brittni Hsu, Tejin Yoon, Chris Szalkowski, Brittney Lutsch, William Ebben

Exercise Science Faculty Research and Publications

This study assessed the effect of antagonist conditioning contractions (ACC) on the subsequent force and electromyography of an agonist. Twelve subjects performed isokinetic elbow flexion on a dynamometer in 4 test conditions including a baseline condition without, and 1, 3 and 6 seconds after, isometric triceps extension. Average peak torque (T), peak torque/body weight (T:BW), average power (P), and rate of torque development (RTD) were assessed. Electromyographic data were obtained from elbow extensors and flexors. A repeated measures ANOVA with post hoc analysis demonstrated that T, T:BW, P, and RTD were higher in the baseline, compared to ...


The Acute Time Course Of Concurrent Activation Potentiation, Luke Garceau, Erich Petushek, McKenzie Fauth, William Ebben 2010 Marquette University

The Acute Time Course Of Concurrent Activation Potentiation, Luke Garceau, Erich Petushek, Mckenzie Fauth, William Ebben

Exercise Science Faculty Research and Publications

This study evaluated the acute time course of the ergogenic effect of concurrent activation potentiation (CAP). Forty-two men and women, including CAP non-responders and responders, performed a 5 second isometric knee extension on a dynamometer with the use of remote voluntary contractions (RVC). Mean torque was assessed in seven 500 millisecond (ms) time periods. A two-way repeated measures ANOVA revealed significant main effects for time period (p ≤ 0.001), but no significant interaction between time period and CAP non-responders and responders (p > 0.05). The ergogenic effects of CAP are accrued during the first 1000ms. Concurrent activation potentiation responders produce ...


Neuroaids In Africa, Kevin Robertson, Jeff Liner, James Hakim, Jean-Louis Sankalé, Igor Grant, Scott Letendre, David Clifford, Amadou Gallo Diop, Assan Jaye, Georgette Kanmogne, Alfred Njamnshi, T. Dianne Langford, Tufa Gemechu Weyessa, Charles Wood, Mwanza Banda, Mina Hosseinipour, Ned Sacktor, Noeline Nakasuja, Paul Bangirana, Robert Paul, John Joska, Joseph Wong, Michael Boivin, Penny Holding, Betsy Kammerer, Annelies Van Rie, Prudence Ive, Avindra Nath, Kathy Lawler, Clement Adebamowo, Walter Royal III, Jeymohan Joseph 2010 University of North Carolina

Neuroaids In Africa, Kevin Robertson, Jeff Liner, James Hakim, Jean-Louis Sankalé, Igor Grant, Scott Letendre, David Clifford, Amadou Gallo Diop, Assan Jaye, Georgette Kanmogne, Alfred Njamnshi, T. Dianne Langford, Tufa Gemechu Weyessa, Charles Wood, Mwanza Banda, Mina Hosseinipour, Ned Sacktor, Noeline Nakasuja, Paul Bangirana, Robert Paul, John Joska, Joseph Wong, Michael Boivin, Penny Holding, Betsy Kammerer, Annelies Van Rie, Prudence Ive, Avindra Nath, Kathy Lawler, Clement Adebamowo, Walter Royal Iii, Jeymohan Joseph

Virology Papers

In July 2009, the Center for Mental Health Research on AIDS at the National Institute of Mental Health organized and supported the meeting “NeuroAIDS in Africa.” This meeting was held in Cape Town, South Africa, and was affiliated with the 5th IAS Conference on HIV Pathogenesis, Treatment and Prevention. Presentations began with an overview of the epidemiology of HIV in sub-Saharan Africa, the molecular epidemiology of HIV, HIV-associated neurocognitive disorders (HANDs), and HAND treatment. These introductory talks were followed by presentations on HAND research and clinical care in Botswana, Cameroon, Ethiopia, The Gambia, Kenya, Malawi, Nigeria, Senegal, South Africa, Uganda ...


Subtype-Associated Differences In Hiv-1 Reverse Transcription Affect The Viral Replication, Sergey Iordanskiy, Mackenzie Waltke, Yanjun Feng, Charles Wood 2010 University of Nebraska-Lincoln

Subtype-Associated Differences In Hiv-1 Reverse Transcription Affect The Viral Replication, Sergey Iordanskiy, Mackenzie Waltke, Yanjun Feng, Charles Wood

Virology Papers

Background: The impact of the products of the pol gene, specifically, reverse transcriptase (RT) on HIV-1 replication, evolution, and acquisition of drug resistance has been thoroughly characterized for subtype B. For subtype C, which accounts of almost 60% of HIV cases worldwide, much less is known. It has been reported that subtype C HIV-1 isolates have a lower replication capacity than B; however, the basis of these differences remains unclear.

Results: We analyzed the impact of the pol gene products from HIV-1 B and C subtypes on the maturation of HIV virions, accumulation of reverse transcription products, integration of viral ...


Primary Gamma-Herpesviral Infection In Zambian Children, Veenu Minhas, Brad P, Brayfield, Kay L. Crabtree, Chipepo Kankasa, Charles D. Mitchell, Charles Wood 2010 University of Nebraska-Lincoln

Primary Gamma-Herpesviral Infection In Zambian Children, Veenu Minhas, Brad P, Brayfield, Kay L. Crabtree, Chipepo Kankasa, Charles D. Mitchell, Charles Wood

Virology Papers

Background: HHV-8 is closely related to Epstein-Barr virus (EBV), but the clinical presentations of these two infections in early childhood are not well understood. Also, it is not known whether infection by one virus correlates with another. Here, we compare the natural history of infection by these two viruses along with the clinical manifestations and risk factors that are associated with early childhood infection in Zambia, which is an endemic area for HHV-8.

Methods: This study was conducted in a cohort of 12 month old Zambian children (N = 677). Data on socio-economic status and a wide range of clinical manifestations ...


Synthesis Of Polyhydroxylated Pyrrolizidine And Indolizidine Compounds And Their Glycosidase Inhibitory Activities, Thunwadee Ritthiwigrom, Robert J. Nash, Stephen G. Pyne 2010 University of Wollongong

Synthesis Of Polyhydroxylated Pyrrolizidine And Indolizidine Compounds And Their Glycosidase Inhibitory Activities, Thunwadee Ritthiwigrom, Robert J. Nash, Stephen G. Pyne

Faculty of Science - Papers (Archive)

The synthesis of the natural product 3-epi-casuarine and two tricyclic ether bridged analogues, plus 7-deoxy-3,6-diepi-casuarine, 7-epi-australine, 1-epi-castanospermine and 1,6-diepi-castanospermine is described. The glycosidase inhibitory activities of these compounds, along with that of uniflorine A and other polyhydroxylated pyrrolizidines and indolizidines that we have published before, are reported.


Short Communication: Antiretroviral Therapy Resistance Mutations Present In The Hiv Type 1 Subtype C Pol And Env Regions From Therapy-Naive Patients In Zambia, Sandra Gonzalez, Clement Gondwe, Damien C. Tully, Veenu Minhas, Danielle Shea, Chipepo Kankasa, Tendai M'soka, Charles Wood 2010 University of Nebraska-Lincoln

Short Communication: Antiretroviral Therapy Resistance Mutations Present In The Hiv Type 1 Subtype C Pol And Env Regions From Therapy-Naive Patients In Zambia, Sandra Gonzalez, Clement Gondwe, Damien C. Tully, Veenu Minhas, Danielle Shea, Chipepo Kankasa, Tendai M'Soka, Charles Wood

Virology Papers

The prevalence of antiretroviral therapy (ART) resistance mutations present in HIV-1 subtype C pol and env regions of the proviral DNA was analyzed and compared from therapy-naive individuals before (Cohort A) and after (Cohort B) the availability of free ART in Zambia. Mutations present in sequences published in a previous study from Zambian ART-naive individuals infected with subtype C were analyzed using current parameters for the classification of ART drug resistance and compared with Cohorts A and B. No statistically significant differences were observed when comparing mutations present in the pol and env of these cohorts. However, an increase in ...


Primary Gamma-Herpesviral Infection In Zambian Children, Veenu Minhas, Brad P. Brayfield, Kay L. Crabtree, Chipepo Kankasa, Charles D. Mitchell, Charles Wood 2010 University of Nebraska-Lincoln

Primary Gamma-Herpesviral Infection In Zambian Children, Veenu Minhas, Brad P. Brayfield, Kay L. Crabtree, Chipepo Kankasa, Charles D. Mitchell, Charles Wood

Virology Papers

Background: HHV-8 is closely related to Epstein-Barr virus (EBV), but the clinical presentations of these two infections in early childhood are not well understood. Also, it is not known whether infection by one virus correlates with another. Here, we compare the natural history of infection by these two viruses along with the clinical manifestations and risk factors that are associated with early childhood infection in Zambia, which is an endemic area for HHV-8.

Methods: This study was conducted in a cohort of 12 month old Zambian children (N = 677). Data on socio-economic status and a wide range of clinical manifestations ...


Synthesis Of 2′-Aminoalkyl-1-Benzylisoquinoline Derivatives And Medium Sized Ring Analogues With Mu Opiod Receptor Binding Activities, Uta Mbere-Nguyen, Alison T. Ung, Stephen G. Pyne 2010 University of Wollongong

Synthesis Of 2′-Aminoalkyl-1-Benzylisoquinoline Derivatives And Medium Sized Ring Analogues With Mu Opiod Receptor Binding Activities, Uta Mbere-Nguyen, Alison T. Ung, Stephen G. Pyne

Faculty of Science - Papers (Archive)

Novel 2′-aminoalkyl-1-benzylisoquinoline compounds and medium size ring analogues have been prepared using reductive alkylation methods. Four of these analogues were tested for biological activity across 48 different CNS receptors and were showed to have binding activities at the mu opiod receptor.


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