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Articles 1 - 8 of 8
Full-Text Articles in Physical Sciences and Mathematics
Sediment Mixing At Nonda Rock: Investigations Of Stratigraphic Integrity At An Early Archaeological Site In Northern Australia And Implications For The Human Colonisation Of The Continent, Richard Roberts, C White, L K Fifield, Christian Turney, M Bird, John Tibby, Bruno David, John Magee, Jerome Mialanes
Sediment Mixing At Nonda Rock: Investigations Of Stratigraphic Integrity At An Early Archaeological Site In Northern Australia And Implications For The Human Colonisation Of The Continent, Richard Roberts, C White, L K Fifield, Christian Turney, M Bird, John Tibby, Bruno David, John Magee, Jerome Mialanes
Richard G Roberts
No abstract provided.
Late-Surviving Megafauna In Tasmania Australia, Implicate Human Involvement In Their Extinction, Christian Turney, T Flannery, Richard Roberts, Craig Reid, Keith Fifield, T Higham, Zenobia Jacobs, Noel Kemp, Eric Colhoun, R.M. Kalin
Late-Surviving Megafauna In Tasmania Australia, Implicate Human Involvement In Their Extinction, Christian Turney, T Flannery, Richard Roberts, Craig Reid, Keith Fifield, T Higham, Zenobia Jacobs, Noel Kemp, Eric Colhoun, R.M. Kalin
Richard G Roberts
Establishing the cause of past extinctions is critical if we are to understand better what might trigger future occurrences and how to prevent them. The mechanisms of continental late Pleistocene megafaunal extinction, however, are still fiercely contested. Potential factors contributing to their demise include climatic change, human impact, or some combination. On the Australian mainland, 90% of the megafauna became extinct by ≈46 thousand years (ka) ago, soon after the first archaeological evidence for human colonization of the continent. Yet, on the neighboring island of Tasmania (which was connected to the mainland when sea levels were lower), megafaunal extinction appears …
Human Occupation, Adaptation And Behavioural Change In The Pleistocene And Holocene Of South India: Recent Investigations In The Kurnool District, Andhra Pradesh, Richard Roberts, Kevin White, Christopher Clarkson, Jinu Koshy, Ravi Korisettar, Sacha Jones, Clive Oppenheimer, Nicole Boivin, Michael Petraglia, Peter Ditchfield, Janardhana B, Jamie Hampson, Preston Miracle, Kevin Cunningham, M Kasturi Bai, Dorian Fuller, Michael Haslam
Human Occupation, Adaptation And Behavioural Change In The Pleistocene And Holocene Of South India: Recent Investigations In The Kurnool District, Andhra Pradesh, Richard Roberts, Kevin White, Christopher Clarkson, Jinu Koshy, Ravi Korisettar, Sacha Jones, Clive Oppenheimer, Nicole Boivin, Michael Petraglia, Peter Ditchfield, Janardhana B, Jamie Hampson, Preston Miracle, Kevin Cunningham, M Kasturi Bai, Dorian Fuller, Michael Haslam
Richard G Roberts
No abstract provided.
Establishing The Time Of Initial Human Occupation Of Liang Bua, Western Flores, Indonesia, Kira Westaway, Michael Morwood, Richard Roberts, J Zhao, T. Sutikna, E.W. Saptomo, W Rink
Establishing The Time Of Initial Human Occupation Of Liang Bua, Western Flores, Indonesia, Kira Westaway, Michael Morwood, Richard Roberts, J Zhao, T. Sutikna, E.W. Saptomo, W Rink
Richard G Roberts
No abstract provided.
Single-Grain Osl Chronologies For Middle Palaeolithic Deposits At El Mnasra And El Harhoura 2, Morocco: Implications For Late Pleistocene Human-Environment Interactions Along The Atlantic Coast Of Northwest Africa, Zenobia Jacobs, Richard Roberts, Roland Nespoulet, M El Hajraoui, Andre Debenath
Single-Grain Osl Chronologies For Middle Palaeolithic Deposits At El Mnasra And El Harhoura 2, Morocco: Implications For Late Pleistocene Human-Environment Interactions Along The Atlantic Coast Of Northwest Africa, Zenobia Jacobs, Richard Roberts, Roland Nespoulet, M El Hajraoui, Andre Debenath
Richard G Roberts
Optically stimulated luminescence (OSL) measurements were made on individual, sand-sized grains of quartz from Middle Palaeolithic deposits at two cave sites (El Harhoura 2 and El Mnasra) on the Atlantic coast of Morocco. We were able to calculate OSL ages for 32 of the 33 samples collected from the Middle Palaeolithic deposits, including the earliest and latest Aterian levels at both sites. These ages reveal periods of occupation between about 110 and 95 ka (thousands of years ago), and at ~75 ka. A late Middle Palaeolithic occupation of El Harhoura 2 is also recorded at ~55 ka. Our single-grain OSL …
Single-Grain Optical Dating Of Grave-Infill Associated With Human Burials At Lake Mungo Australia, Jonathon Olley, Richard Roberts, Hiroyuki Yoshida, James M Bowler
Single-Grain Optical Dating Of Grave-Infill Associated With Human Burials At Lake Mungo Australia, Jonathon Olley, Richard Roberts, Hiroyuki Yoshida, James M Bowler
Richard G Roberts
Recent age constraints on Australia's oldest human remains (Mungo I and III), found at Lake Mungo in western New South Wales, relied on optical dating of sands from the same stratigraphic units as those into which the remains had been inserted (42±3 ka) and those that overlay the graves (38±2 ka), giving a burial age of 40±2 ka. This indirect means of dating the burials was necessary because the original site from which the remains had been excavated had been completely eroded away. At the time of the original excavation of the Mungo III grave, blocks of sediment from the …
Truncation, Cross-Linking And Interaction Of Crystallins And Intermediate Filament Proteins In The Aging Human Lens, Roger Truscott, Jason Mcarthur, Andrew Aquilina, Shi-Ping (Jim) Su
Truncation, Cross-Linking And Interaction Of Crystallins And Intermediate Filament Proteins In The Aging Human Lens, Roger Truscott, Jason Mcarthur, Andrew Aquilina, Shi-Ping (Jim) Su
J. A. Aquilina
The optical properties of the lens are dependent upon the integrity of proteins within the fiber cells. During aging, crystallins, the major intra-cellular structural proteins of the lens, aggregate and become water-insoluble. Modifications to crystallins and the lens intermediate filaments have been implicated in this phenomenon. In this study, we examined changes to, and interactions between, human lens crystallins and intermediate filament proteins in lenses from a variety of age groups (0-86 years). Among the lens-specific intermediate filament proteins, filensin was extensively cleaved in all postnatal lenses, with truncated products of various sizes being found in both the lens cortical …
Protein-Bound Uv Filters In Normal Human Lenses: The Concentration Of Bound Uv Filters Equals That Of Free Uv Filters In The Centre Of Older Lenses, Roger Truscott, Andrew Aquilina, Anastasia Korlimbinis
Protein-Bound Uv Filters In Normal Human Lenses: The Concentration Of Bound Uv Filters Equals That Of Free Uv Filters In The Centre Of Older Lenses, Roger Truscott, Andrew Aquilina, Anastasia Korlimbinis
J. A. Aquilina
No abstract provided.