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Full-Text Articles in Medicine and Health Sciences
New Ages For Human Occupation And Climatic Change At Lake Mungo Australia, James Bowler, Harvey Johnston, Jon M Olley, John Prescott, Richard Roberts, Wilfred Shawcross, Nigel Spooner
New Ages For Human Occupation And Climatic Change At Lake Mungo Australia, James Bowler, Harvey Johnston, Jon M Olley, John Prescott, Richard Roberts, Wilfred Shawcross, Nigel Spooner
Richard G Roberts
Australia’s oldest human remains, found at Lake Mungo, include the world’s oldest ritual ochre burial (Mungo III) and the first recorded cremation (Mungo I). Until now, the importance of these finds has been constrained by limited chronologies and palaeoenvironmental information. Mungo III, the source of the world’s oldest human mitochondrial DNA, has been variously estimated at 30 thousand years (kyr) old, 42–45 kyr old and 62 +/- 6 kyr old. while radiocarbon estimates placed theMungo I cremation near 20–26 kyr ago. Here we report a new series of 25 optical ages showing that both burials occurred at 40 +/- 2 …
Archaeology And Age Of A New Hominin From Flores, In Eastern Indonesia, Michael Morwood, R Soejono, Richard Roberts, T. Sutikna, Christian Turney, Kira Westaway, W Rink, Jian-Xin Zhao, Gerrit Van Den Bergh, Rokhus Awe Due, Douglas Hobbs, M Moore, M Bird, L Fifield
Archaeology And Age Of A New Hominin From Flores, In Eastern Indonesia, Michael Morwood, R Soejono, Richard Roberts, T. Sutikna, Christian Turney, Kira Westaway, W Rink, Jian-Xin Zhao, Gerrit Van Den Bergh, Rokhus Awe Due, Douglas Hobbs, M Moore, M Bird, L Fifield
Richard G Roberts
Excavations at Liang Bua, a large limestone cave on the island of Flores in eastern Indonesia, have yielded evidence for a population of tiny hominins, sufficiently distinct anatomically to be assigned to a new species, Homo floresiensis1. The finds comprise the cranial and some post-cranial remains of one individual, as well as a premolar from another individual in older deposits. Here we describe their context, implications and the remaining archaeological uncertainties. Dating by radiocarbon (14C), luminescence, uranium-series and electron spin resonance (ESR) methods indicates that H. floresiensis existed from before 38,000 years ago (kyr) until at …
Sources Of Overdispersion In A K-Rich Feldspar Sample From North-Central India: Insights From De, K Content And Irsl Age Distributions For Individual Grains, C Neudorf, Richard Roberts, Z Jacobs
Sources Of Overdispersion In A K-Rich Feldspar Sample From North-Central India: Insights From De, K Content And Irsl Age Distributions For Individual Grains, C Neudorf, Richard Roberts, Z Jacobs
Richard G Roberts
Luminescence dating of individual sand-sized grains of quartz is a well-established technique in Quaternary geochronology, but the most ubiquitous mineral on the surface of the Earth—feldspar—has received much less attention at the single-grain level. In this study, we estimated single-grain equivalent dose values and infrared stimulated luminescence (IRSL) ages for K-rich feldspar (KF) grains from a fluvial sample underlying Youngest Toba Tuff (YTT) deposits in north-central India, and compared these ages (corrected for anomalous fading) with those obtained from individual grains of quartz from the same sample. Both minerals have broadly similar single-grain age distributions, but both are greatly overdispersed …
Time Matters, Richard Roberts, M F Smith
New Ages For The Last Australian Megafauna: Continent Wide Extinction About 46,000 Years Ago, Richard Roberts, T Flannery, Linda Ayliffe, Hiroyuki Yoshida, Jon M Olley, Gavin Prideaux, G Laslett, A Baynes, M Smith, Richard Jones, B Smith
New Ages For The Last Australian Megafauna: Continent Wide Extinction About 46,000 Years Ago, Richard Roberts, T Flannery, Linda Ayliffe, Hiroyuki Yoshida, Jon M Olley, Gavin Prideaux, G Laslett, A Baynes, M Smith, Richard Jones, B Smith
Richard G Roberts
No abstract provided.
Archaeology: Progress And Pitfalls In Radiocarbon Dating, Christian Turney, Richard Roberts, Zenobia Jacobs
Archaeology: Progress And Pitfalls In Radiocarbon Dating, Christian Turney, Richard Roberts, Zenobia Jacobs
Richard G Roberts
No abstract provided.
Tight Entrance Cave, Southwestern Australia: A Late Pleistocene Vertebrate Deposit Spanning More Than 180 Ka, Gavin Prideaux, G Gully, Linda Ayliffe, M Bird, Richard Roberts
Tight Entrance Cave, Southwestern Australia: A Late Pleistocene Vertebrate Deposit Spanning More Than 180 Ka, Gavin Prideaux, G Gully, Linda Ayliffe, M Bird, Richard Roberts
Richard G Roberts
No abstract provided.
A Bayesian Approach To The Evaluation Of Equivalent Doses In Sediment Mixtures For Luminescence Dating, D Sivia, C Burbidge, Richard Roberts, Richard Bailey
A Bayesian Approach To The Evaluation Of Equivalent Doses In Sediment Mixtures For Luminescence Dating, D Sivia, C Burbidge, Richard Roberts, Richard Bailey
Richard G Roberts
No abstract provided.
The People Time Forgot, Richard Roberts, Michael Morwood, T. Sutikna
The People Time Forgot, Richard Roberts, Michael Morwood, T. Sutikna
Richard G Roberts
No abstract provided.
Human History Written In Stone And Blood, Zenobia Jacobs, Richard Roberts
Human History Written In Stone And Blood, Zenobia Jacobs, Richard Roberts
Richard G Roberts
Even by archaeological standards, Blombos Cave is a modestly sized shelter. Yet artifacts recovered from just 13 cubic meters of deposit inside transformed our understanding of when our species developed behavioral attributes we associate with “modern” humans. From this cramped hole in a sandstone cliff on the Southern Cape coast of South Africa, Christopher Henshilwood and his colleagues unearthed evidence of symbolic expression, in the form of abstract designs (carved ochre bars) and personal ornaments (shell beads) at least 70,000 years old. That is more than 35,000 years before anything comparable emerged in Europe.
Elemental Delta C-13 At Allen's Cave, Nullarbor Plain, Australia: Assessing Post-Depositional Disturbance And Reconstructing Past Environments, C Turney, M Bird, Richard Roberts
Elemental Delta C-13 At Allen's Cave, Nullarbor Plain, Australia: Assessing Post-Depositional Disturbance And Reconstructing Past Environments, C Turney, M Bird, Richard Roberts
Richard G Roberts
No abstract provided.
Obituary: Professor Rhys Jones, Ao, Richard Roberts
Obituary: Professor Rhys Jones, Ao, Richard Roberts
Richard G Roberts
No abstract provided.
Orang Kedil Dari Dunia Yang Hilung, Michael Morwood, T. Sutikna, Richard Roberts
Orang Kedil Dari Dunia Yang Hilung, Michael Morwood, T. Sutikna, Richard Roberts
Richard G Roberts
No abstract provided.
Optical Dating Of Deep-Sea Sediments Using Single Grains Of Quartz: A Comparison With Radiocarbon, Jon M Olley, Patrick De Deckker, Richard Roberts, L Fifield, Hiroyuki Yoshida, G Hancock
Optical Dating Of Deep-Sea Sediments Using Single Grains Of Quartz: A Comparison With Radiocarbon, Jon M Olley, Patrick De Deckker, Richard Roberts, L Fifield, Hiroyuki Yoshida, G Hancock
Richard G Roberts
No abstract provided.
On The Reliability Of Age Estimates For Human Remains At Lake Mungo, Richard Gillespie, Richard Roberts
On The Reliability Of Age Estimates For Human Remains At Lake Mungo, Richard Gillespie, Richard Roberts
Richard G Roberts
The lunettes that fringe the ancient shorelines of Lake Mungo, in the Willandra Lakes region of southeastern Australia, have been a source of sustained archaeological and environmental interest since 1968, when Jim Bowler found the first of many recently exposed human burials. Most attention has been directed toward the Mungo 1 and Mungo 3 burials, excavated from the southern end of the ‘‘Walls of China’’ lunette (Bowler et al., 1970, 1972; Bowler & Thorne, 1976). More than 200 radiocarbon (14C) and thermoluminescence (TL) age estimates have since been obtained from a wide range of materials associated with human occupation and …
Radiocarbon Dating Of Organic- And Carbonate-Carbon In Genyornis And Dromaius Eggshell Using Stepped Combustion And Stepped Acidification, M Bird, C Turney, L Fifield, M Smith, G Miller, Richard Roberts, John Magee
Radiocarbon Dating Of Organic- And Carbonate-Carbon In Genyornis And Dromaius Eggshell Using Stepped Combustion And Stepped Acidification, M Bird, C Turney, L Fifield, M Smith, G Miller, Richard Roberts, John Magee
Richard G Roberts
No abstract provided.
Sample Collection For Analytical Study And Scientific Dating Of The Early Indian Petroglyphs And Rock Paintings By The International Commission, G Kumar, R Bednarik, A Watchman, Richard Roberts, E Lawson, C Patterson
Sample Collection For Analytical Study And Scientific Dating Of The Early Indian Petroglyphs And Rock Paintings By The International Commission, G Kumar, R Bednarik, A Watchman, Richard Roberts, E Lawson, C Patterson
Richard G Roberts
No abstract provided.
Dating Middle-Earth, Christian Turney, Richard Roberts, Kira Westaway
Dating Middle-Earth, Christian Turney, Richard Roberts, Kira Westaway
Richard G Roberts
The article presents information on determining the features of a new species of primitive human discovered called hobbits. The ancient anatomical features of the skeleton shared many similarities with 1.8-million-year-old human remains found at Dmanisi in the Republic of Georgia. So researchers anticipated it to be at least hundreds of thousands of years old. But because the skeletal remains were the only known examples of an entirely new species, we could not afford to destroy any of it by using direct dating methods that consumed any bones or teeth. Parts of the skeleton were still articulated, indicating "Hobbit" had died …
Early Human Occupation At Devil's Lair, South-Western Australia, Christian Turney, M Bird, L K Fifield, Richard Roberts, Michael Smith, C Dortch, R. Grun, E Lawson, Linda Ayliffe, G Miller, J Dortch, R Creswell
Early Human Occupation At Devil's Lair, South-Western Australia, Christian Turney, M Bird, L K Fifield, Richard Roberts, Michael Smith, C Dortch, R. Grun, E Lawson, Linda Ayliffe, G Miller, J Dortch, R Creswell
Richard G Roberts
No abstract provided.
Optical Dating Of Holocene Sediments From A Variety Of Geomorphic Settings Using Single Grains Of Quartz, Jon M Olley, Tim Pietsch, Richard Roberts
Optical Dating Of Holocene Sediments From A Variety Of Geomorphic Settings Using Single Grains Of Quartz, Jon M Olley, Tim Pietsch, Richard Roberts
Richard G Roberts
No abstract provided.
Archaeology And Australian Megafauna, Richard Roberts, Hiroyuki Yoshida, T Flannery, Linda Ayliffe, Jon M Olley, Gavin Prideaux, G Laslett, A Baynes, M Smith, Richard Jones, B Smith
Archaeology And Australian Megafauna, Richard Roberts, Hiroyuki Yoshida, T Flannery, Linda Ayliffe, Jon M Olley, Gavin Prideaux, G Laslett, A Baynes, M Smith, Richard Jones, B Smith
Richard G Roberts
No abstract provided.
Statistical Aspects Of Equivalent Dose And Error Calculation And Display In Osl Dating: An Overview And Some Recommendations, R Galbraith, Richard Roberts
Statistical Aspects Of Equivalent Dose And Error Calculation And Display In Osl Dating: An Overview And Some Recommendations, R Galbraith, Richard Roberts
Richard G Roberts
All Quaternary dating methods involve the measurement of one or more variables to estimate the age of a sample. Each measured quantity has an associated error and uncertainty, and may also be subject to natural variation. We review the statistical estimation of such uncertainties and variation for comparing and interpreting age estimates, with specific reference to the estimation of equivalent dose (De) values in the optically stimulated luminescence (OSL) dating of sediments. We discuss statistical aspects of OSL signal and background estimation, the determination of De values for multi-grain aliquots and individual mineral grains from the same and different samples, …
Distinguishing Dose Populations In Sediment Mixtures: A Test Of Single-Grain Optical Dating Procedures Using Mixtures Of Laboratory-Dosed Quartz, Richard Roberts, R Galbraith, Hiroyuki Yoshida, G Laslett, Jon M Olley
Distinguishing Dose Populations In Sediment Mixtures: A Test Of Single-Grain Optical Dating Procedures Using Mixtures Of Laboratory-Dosed Quartz, Richard Roberts, R Galbraith, Hiroyuki Yoshida, G Laslett, Jon M Olley
Richard G Roberts
No abstract provided.
The Last Australian Megafauna, Richard Roberts
The Last Australian Megafauna, Richard Roberts
Richard G Roberts
No abstract provided.
Progress Towards Single-Grain Optical Dating Of Fossil Mud-Wasp Nests And Associated Rock Art In Northern Australia, Hiroyuki Yoshida, Richard Roberts, Jon M Olley
Progress Towards Single-Grain Optical Dating Of Fossil Mud-Wasp Nests And Associated Rock Art In Northern Australia, Hiroyuki Yoshida, Richard Roberts, Jon M Olley
Richard G Roberts
No abstract provided.
Optical Dating Of Quartz Sediments And Accelerator Mass Spectrometry 14c Dating Of Bone Gelatin And Moa Eggshell: A Comparison Of Age Estimates For Non-Archaeological Deposits In New Zealand, Richard Holdaway, Richard Roberts, Nancy Beavan-Athfield, Jon M Olley, Trevor Worthy
Optical Dating Of Quartz Sediments And Accelerator Mass Spectrometry 14c Dating Of Bone Gelatin And Moa Eggshell: A Comparison Of Age Estimates For Non-Archaeological Deposits In New Zealand, Richard Holdaway, Richard Roberts, Nancy Beavan-Athfield, Jon M Olley, Trevor Worthy
Richard G Roberts
No abstract provided.
Extending The Range Of Optical Dating Using Single 'Supergrains' Of Quartz, Hiroyuki Yoshida, Richard Roberts, Jon M Olley, G Laslett, R Galbraith
Extending The Range Of Optical Dating Using Single 'Supergrains' Of Quartz, Hiroyuki Yoshida, Richard Roberts, Jon M Olley, G Laslett, R Galbraith
Richard G Roberts
No abstract provided.
2002 Progress Report Of The Eip Project, G Kumar, R Bednarik, A Watchman, Richard Roberts, E Lawson, C Patterson
2002 Progress Report Of The Eip Project, G Kumar, R Bednarik, A Watchman, Richard Roberts, E Lawson, C Patterson
Richard G Roberts
No abstract provided.
Video-Recorded Usability Testing Of A Web-Based Self-Administered Dietary Assessment, Yasmine Probst, David Steel, Linda Tapsell
Video-Recorded Usability Testing Of A Web-Based Self-Administered Dietary Assessment, Yasmine Probst, David Steel, Linda Tapsell
Professor David Steel
No abstract provided.
School-Based Cancer Education Programs: An Opportunity To Affect The National Cancer Problem, Donald Iverson, J Scheer
School-Based Cancer Education Programs: An Opportunity To Affect The National Cancer Problem, Donald Iverson, J Scheer
Don C. Iverson
No abstract provided.