Skip to main content

ETHNOS_APP

Home • Search • Journals • List 0

E M Scott

Biographic Data

ID3643553
NAMEE M Scott
GIVEN NAMESE M
FAMILY NAMEScott
SIGNATURESCOTT E M
AFFILIATIONSMax Planck Institute for the Science of Human History
ORCID0009-0001-5996-5734
VERIFIEDYes
TOTAL WORKS51
TOTAL CITATIONS444
AUTHOR COUNT51
EDITOR COUNT0
FIRST PUBLICATION YEAR1940
LATEST PUBLICATION YEAR2026
H-INDEX12
  • Stable isotope insights into endemic animal diets in pre-colonial Jamaica

    Open Access•Ryan Cousins, E M Scott et al.•ARTICLE•Journal of Archaeological Science…•2026

    The role of commensal or synanthropic species in the subsistence practices and island ecologies of the insular Caribbean has been receiving increasing attention as more sites and faunal assemblages are studied across the region. As the only surviving endemic terrestrial mammal on the island and an essential part of the human diet in precolonial Jamaica, the Jamaican hutia ( Geocapromys brownii ) has become a useful proxy for reconstructing human …

  • Age and sex-related differences in diet in hellenistic-early roman sicily: Stable isotope evidence (δ13Ccollagen, δ13Ccarbonate, δ15N) from the settlement of Menainon

    Open Access•Antonio Caruso, Sophia Huesges et al.•ARTICLE•Archaeological and Anthropological…•2026

    During the Hellenistic-early Roman period (4th − 1st BCE), Sicily played a major role in shaping sociopolitical developments in the Mediterranean. However, despite its experience of major social, economic, and demographic change, including major events such as Greek colonization and Roman expansion, aspects of past life, including diet and nutrition, in Sicily during this period, remain largely unexplored. This paper employed samples from 50 adul…

  • Bridging Worlds: Unraveling Alwan Cultural Identity at the Nexus of the Savannah and Nile Valley Through Subsistence Practices

    Open Access•Joanna A Ciesielska, E M Scott et al.•ARTICLE•Archaeometry•2025•References: 45

    This study investigates the subsistence patterns of the inhabitants of Soba, the capital of the medieval Kingdom of Alwa in modern Sudan. Dental enamel of 28 individuals was sampled for the isotopic analysis of carbon (δ 13 C) and oxygen (δ 18 O). Overall, the δ 13 C values indicate overwhelming reliance of Soba inhabitants on C 4 plants and/or faunal produce from C 4 ‐fed animals. The results of oxygen analysis (δ 18 O) fall within the expected …

  • Persistence of Roman economic structures reflected in the dietary habits of late antique Tuscany (central Italy, 3rd–7th centuries CE)

    Open Access•Giulia Riccomi, Giorgia Tulumello et al.•ARTICLE•Journal of Archaeological Science…•2025•References: 8

  • Isotopic Evidence for Socio-economic Dynamics Within the Capital of the Kingdom of Alwa, Sudan

    Open Access•Joanna A Ciesielska, P Le Roux et al.•ARTICLE•African Archaeological Review•2024•Cited by: 1•References: 88

    Between the sixth and fifteenth c. CE, a vast expanse of central and southern Sudan belonged to the kingdom of Alwa, ruled from the urban metropolis of Soba. Renewed investigation of the city unearthed a small cemetery in the northern part of the site. The heterogeneity of burial practices raised some questions as to the cultural and religious affinities of the deceased and suggested potential multiculturalism of the local urban population. We ap…

  • Improving Trainees’ Confidence and Participation in Serious Illness Communication: Testing the Serious Illness Care Program With Early Learners

    April Zehm, E M Scott et al.•ARTICLE•Academic Medicine•2022

    Purpose: Early conversations about patients’ goals and values improve care, but clinicians struggle to conduct them. 1 The systems-based Serious Illness Care Program (SICP) 2 helps clinicians have more, better, and earlier conversations. 3–6 Central to this approach is a clinician conversation guide for patient encounters. 2 While the SICP works for practicing clinicians, it has not been tested with medical trainees. The goal of this training is …

  • Should Archaeologists Care about 14 C Intercomparisons? Why? A Summary Report on Siri

    Open Access•E M Scott, P Naysmith et al.•ARTICLE•Radiocarbon•2017•Cited by: 25•References: 5

    Radiocarbon ( 14 C) dating is used widely in many projects as a basis for the creation and testing of chronological constructs. 14 C measurements are by their nature complex and the degree of sample pretreatment varies considerably depending on the material. Within the United Kingdom and Europe, there are a number of well-established laboratories and increasingly, archaeologists are not just commissioning new dates, but also using statistical mod…

  • Preliminary Results for Estimating the Bone Background Uncertainties at Suerc Using Statistical Analysis

    Open Access•P Naysmith, Elaine Dunbar et al.•ARTICLE•Radiocarbon•2017•Cited by: 4•References: 28

    Bone is frequently dated in archaeological studies and, especially for very old bones (more than 40,000 years old), it is critical to have an accurate and precise measure of the material-specific background value and its associated uncertainty. The SUERC Radiocarbon Laboratory has obtained a mammoth bone as a background bone standard and an appropriate number are now routinely prepared and measured in each AMS batch, resulting in the accumulation…

  • Investigation of the Analytical F 14 C Bone Background Value at Suerc

    Open Access•Elaine Dunbar, P Naysmith et al.•ARTICLE•Radiocarbon•2017•Cited by: 4•References: 18

    The SUERC Radiocarbon Laboratory employs a one-step “background subtraction” method when calculating 14 C ages. An interglacial wood (VIRI Sample K) is employed as the non-bone organic background standard, while a mammoth bone (LQH12) from Latton Quarry is used as the bone background standard. Results over several years demonstrate that the bone background is consistently around a factor of two higher and more variable than the wood background. A…

  • OP38 A Nationally Representative Study Exploring the Relationship between Sleep and Obesity in the United Kingdom

    G T H Ellison, E M Scott et al.•ARTICLE•Journal of Epidemiology and…•2013

    Background This study explored the potential role that sleep, and sleep improvement, might play in the aetiology of obesity, using data from the first wave of the Understanding Society (USoc) cohort – a longitudinal household panel study representative of the UK population. Methods The first wave of USoc collected data on seven self-reported sleep-related variables comprising measures of: sleep duration; sleep quality; snoring and/or coughing whi…

  • Calibration for Archaeological and Environmental Terrestrial Samples in the Time Range 26–50 ka cal BP

    Open Access•Christopher B Ramsey, E M Scott et al.•ARTICLE•Radiocarbon•2013•Cited by: 20•References: 23

    For the older part of the radiocarbon dating range, the IntCal13 curve provides the “state of the art” for terrestrial calibration based on all available data. It is constructed from different records, each of which by themselves could be used as a “comparison tool,” depending on the research objectives. This paper discusses the pros and cons of different approaches that can be taken when using 14 C dates from this time range where the agreement …

  • Examining the Inherent Variability in ΔR: New Methods of Presenting ΔR Values and Implications for MRE Studies

    Open Access•N Russell, G T Cook et al.•ARTICLE•Radiocarbon•2011•Cited by: 23•References: 23

    Currently, there is significant ongoing research into the temporal and spatial variability of marine radiocarbon reservoir effects (MREs) through quantification of ΔR values. In turn, MRE studies often use large changes in ΔR values as proxies for changes in ocean circulation. ΔR values are published in a variety of formats with variations in how the errors on these values are calculated, making it difficult to identify trends or to compare value…

  • The Effect of Storage on the Radiocarbon, Stable Carbon and Nitrogen Isotopic Signatures and Concentrations of Riverine DOM

    Open Access•P Gulliver, S Waldron et al.•ARTICLE•Radiocarbon•2010•Cited by: 2•References: 21

    Chemical preservatives (e.g. mercuric chloride) are routinely added to freshwater samples to prevent biological activity compromising the isotopic signature of dissolved organic matter (DOM) with time. However, alternative preservation methods are needed due to regulations restricting the use of preservatives with potentially adverse environmental and health impacts, rendering such additions unviable. This study investigates whether a non-chemica…

  • C AMS at Suerc: Improving QA Data with the 5MV Tandem and 250KV SSAMS

    Open Access•P Naysmith, G T Cook et al.•ARTICLE•Radiocarbon•2010•Cited by: 15•References: 5

    In 2003, a National Electrostatics Corporation (NEC) 5MV tandem accelerator mass spectrometer was installed at SUERC, providing the radiocarbon laboratory with 14 C measurements to 4–5‰ repeatability. In 2007, a 250kV single-stage accelerator mass spectrometer (SSAMS) was added to provide additional 14 C capability and is now the preferred system for 14 C analysis. Changes to the technology and to our operations are evident in our copious quality…

  • Calibration Introduction

    Open Access•E M Scott, P J Reimer•ARTICLE•Radiocarbon•2009•References: 17

    There are 2 fundamental assumptions in radiocarbon dating, which were known early in the method development to be approximations, and which lead directly to the need to calibrate 14 C dates: 1. The rate of formation of 14 C in the upper atmosphere has been constant over the entire applied 14 C dating timescale (approximately the last 65,000 yr). 2. The 14 C activity of the atmosphere has been in equilibrium with the biosphere and ocean over the a…

  • Dating of the Tashtyk Cultural Remains from the Oglakhty Burial Ground (Southern Siberia)

    Open Access•G I Zaitseva, S V Pankova et al.•ARTICLE•Radiocarbon•2009•Cited by: 1•References: 3

    The present research is focused on the dating of the Oglakhty burial ground, the key site of stage I of the Tashtyk culture. Despite the numerous well-preserved burials of that type investigated at the Oglakhty complexes, their chronological position has remained unclear. From the early 20th century until the present, 2 different time periods had been identified for the Tashtyk burials: (1) from the 1st century BC until the 1st century AD and (2)…

  • Chronology of Key Barrows Belonging to Different Stages of the Scythian Period in Tuva (Arzhan-1 and Arzhan-2 Barrows)

    Open Access•G I Zaitseva, K V Chugunov et al.•ARTICLE•Radiocarbon•2007•Cited by: 7•References: 4

    This paper focuses on the chronological study of 2 Scythian period monuments that are the key to the chronology of the entire Eurasian Scythian culture. These are the unique monuments of Arzhan-1 and Arzhan-2 in Central Asia (Tuva Republic). The dating of both these monuments began immediately after their discovery, but discussion about their chronological position is still current. Both monuments contained considerable wooden material from their…

  • The Early Medieval Origin of Perth, Scotland

    Open Access•D W Hall, G T Cook et al.•ARTICLE•Radiocarbon•2007•Cited by: 2•References: 9

    The radiocarbon results (and Bayesian modeling) of 15 samples of carbonized food residues removed from the external surface of rim sherds of cooking pots indicate that shellyware pottery first appeared in Perth, Scotland, around cal AD 910–1020 (95% probability) and that it had disappeared by cal AD 1020–1140 (95% probability). Previously, it had been suggested that this pottery could not date to before AD 1150. These data, together with 14 C ana…

  • Chronology of Holocene Climate and Vegetation Changes and their Connection to Cultural Dynamics in Southern Siberia

    Open Access•V G Dirksen, B van Geel et al.•ARTICLE•Radiocarbon•2007•Cited by: 2•References: 22

    Two sediment sequences from Big Kyzykul Lake and the Shushenskoe paleolake in the Minusinsk depression, Southern Siberia, were studied by pollen, microfossil, and geochemical analyses, as well as radiocarbon dating. The records indicate the persistence of an arid period between ∼11.7–7.6 cal kyr BP, increased effective moisture since ∼7.6 cal kyr BP, 2 humid impulses at ∼5.1 and 2.8 cal kyr BP separated by a dry interval, and the return to genera…

  • Precision and accuracy in applied 14C dating: Some findings from the Fourth International Radiocarbon Inter-comparison

    Open Access•E M Scott, Marian Scott et al.•ARTICLE•Journal of Archaeological Science•2004•Cited by: 3•References: 1

  • Chronological Studies of the Arzhan-2 Scythian Monument in Tuva (Russia)

    Open Access•G I Zaitseva, K V Chugunov et al.•ARTICLE•Radiocarbon•2004•Cited by: 4•References: 2

    The first radiocarbon dates from the unique early Scythian monument Arzhan-2, discovered in 2001, are presented. The monument contained a royal burial (grave nr 5). Unfortunately, precise dating is hampered by the Hallstatt plateau in the calibration curve. However, using both accelerator mass spectrometry measurements from buried materials and conventional dates for floating tree rings from the burial chamber, we were able to date the constructi…

  • Capabilities of the New Suerc 5MV AMS Facility for 14 C Dating

    Open Access•S Xu, R Anderson et al.•ARTICLE•Radiocarbon•2004•Cited by: 25•References: 7

    A new National Electrostatic Corporation (NEC) 5MV accelerator mass spectrometer became operational at the Scottish Universities Environmental Research Centre (SUERC) in July 2002. It has 2 Cs sputter negative ion sources: a 134-sample source (S1) for the routine measurement of all species, and a hybrid source (S2) with 40 spaces for radiocarbon measurements with either graphite or CO 2 samples. A number of performance tests on graphite samples h…

  • Is there a Fifth International Radiocarbon Intercomparison (Viri)

    Open Access•E M Scott, C Bryant et al.•ARTICLE•Radiocarbon•2003•Cited by: 37•References: 7

    The issue of comparability of measurements (and thus bias, accuracy, and precision of measurement) from diverse laboratories is one which has been the focus of some attention both within the radiocarbon community and the wider user communities. As a result, the 14 C community has undertaken a widescale, far-reaching, and evolving program of intercomparisons, to the benefit of laboratories and users alike. The benefit to the users is, however, ind…

  • Is Comparability of 14 C Dates an Issue: A Status Report on the Fourth International Radiocarbon Intercomparison

    Open Access•C Bryant, I Carmi et al.•ARTICLE•Radiocarbon•2001•Cited by: 4•References: 3

    For more than 15 years, the radiocarbon community has participated in a series of laboratory intercomparisons in response to the issue of comparability of measurements as perceived within the wider user communities (Scott et al. 1990; Rozanski et al. 1992; Gulliksen and Scott 1995; Scott et al. 1997). In this report, we provide an update on the current 14 C laboratory intercomparison and reflect on future issues linked to the laboratory intercomp…

  • Towards a Radiocarbon Chronology of the Late-Glacial: Sample Selection Strategies

    Open Access•M J C Walker, C Bryant et al.•ARTICLE•Radiocarbon•2001•Cited by: 4•References: 26

    This paper outlines a dating program designed to test the reproducibility of radiocarbon dates on different materials of Late-Glacial age (plant macrofossils, fossil beetle remains, and the “humic” and “humin” chemical fractions of limnic sediments) using a combination of radiometric (beta counting) and accelerator mass spectrometry (AMS) techniques. The results have implications for the design of sampling strategies and for the development of im…

Next
  • The IAEA 14 C Intercomparison Exercise 1990

    Open Access•Kazimierz Rozanski, Willibald Stichler et al.•ARTICLE•Radiocarbon•1992•Cited by: 96•References: 10

    As a follow-up to the meeting of experts convened at the International Atomic Energy Agency (IAEA) in February 1989, and the International 14 C Workshop held in Glasgow in September 1989, the 14 C Quality Assurance Program was formulated. In a joint effort of several radiocarbon teams and IAEA staff, we have prepared a set of five new intercomparison materials. These are natural materials frequently used by radiocarbon laboratories. The materials…

  • Is there a Fifth International Radiocarbon Intercomparison (Viri)

    Open Access•E M Scott, C Bryant et al.•ARTICLE•Radiocarbon•2003•Cited by: 37•References: 7

    The issue of comparability of measurements (and thus bias, accuracy, and precision of measurement) from diverse laboratories is one which has been the focus of some attention both within the radiocarbon community and the wider user communities. As a result, the 14 C community has undertaken a widescale, far-reaching, and evolving program of intercomparisons, to the benefit of laboratories and users alike. The benefit to the users is, however, ind…

  • Should Archaeologists Care about 14 C Intercomparisons? Why? A Summary Report on Siri

    Open Access•E M Scott, P Naysmith et al.•ARTICLE•Radiocarbon•2017•Cited by: 25•References: 5

    Radiocarbon ( 14 C) dating is used widely in many projects as a basis for the creation and testing of chronological constructs. 14 C measurements are by their nature complex and the degree of sample pretreatment varies considerably depending on the material. Within the United Kingdom and Europe, there are a number of well-established laboratories and increasingly, archaeologists are not just commissioning new dates, but also using statistical mod…

  • Capabilities of the New Suerc 5MV AMS Facility for 14 C Dating

    Open Access•S Xu, R Anderson et al.•ARTICLE•Radiocarbon•2004•Cited by: 25•References: 7

    A new National Electrostatic Corporation (NEC) 5MV accelerator mass spectrometer became operational at the Scottish Universities Environmental Research Centre (SUERC) in July 2002. It has 2 Cs sputter negative ion sources: a 134-sample source (S1) for the routine measurement of all species, and a hybrid source (S2) with 40 spaces for radiocarbon measurements with either graphite or CO 2 samples. A number of performance tests on graphite samples h…

  • An Overview of All Three Stages of the International Radiocarbon Intercomparison

    Open Access•E M Scott, T C Aitchison et al.•ARTICLE•Radiocarbon•1990•Cited by: 24•References: 2

    The International Collaborative Study involved a wide range of sample materials and ages and, on completion, assessed each stage independently (Scott et al 1989; Aitchison et al 1990). We combine here the three stages of the study and provide an overview of the uncertainties in the dating procedure as a whole and in its component processes. Three key optimal performance indices, related to internal and external precision and to bias, have been de…

  • Examining the Inherent Variability in ΔR: New Methods of Presenting ΔR Values and Implications for MRE Studies

    Open Access•N Russell, G T Cook et al.•ARTICLE•Radiocarbon•2011•Cited by: 23•References: 23

    Currently, there is significant ongoing research into the temporal and spatial variability of marine radiocarbon reservoir effects (MREs) through quantification of ΔR values. In turn, MRE studies often use large changes in ΔR values as proxies for changes in ocean circulation. ΔR values are published in a variety of formats with variations in how the errors on these values are calculated, making it difficult to identify trends or to compare value…

  • Making the most of radiocarbon dating: Some Statistical Considerations

    Open Access•Caitlin E Buck, C D Litton et al.•ARTICLE•Antiquity•1994•Cited by: 22•References: 13

    The revised radiocarbon calibration curve, published last year, extends back into the Pleistocene the radiocarbon determinations that can be converted to real calendar years. For determinations of any age, the right judgements and statistical considerations must be followed if the real information held in the determinations is to be found. Here is advice with some worked examples

  • A Chronology of the Scythian Antiquities of Eurasia Based on New Archaeological and 14 C Data

    Open Access•Andrey Yu Alekseev, N A Bokovenko et al.•ARTICLE•Radiocarbon•2001•Cited by: 21•References: 1

    The paper is compares the chronology of the monuments of the Scythian epoch located in the east and west of the Eurasian steppe zone on the basis of both archaeological and radiocarbon data. The lists of 14 C dates for the monuments located in different parts of Eurasia are presented according to the periods of their existence. Generally, the 14 C dates are confirmed the archaeological point of view and allow us to compare the chronological posit…

  • Calibration for Archaeological and Environmental Terrestrial Samples in the Time Range 26–50 ka cal BP

    Open Access•Christopher B Ramsey, E M Scott et al.•ARTICLE•Radiocarbon•2013•Cited by: 20•References: 23

    For the older part of the radiocarbon dating range, the IntCal13 curve provides the “state of the art” for terrestrial calibration based on all available data. It is constructed from different records, each of which by themselves could be used as a “comparison tool,” depending on the research objectives. This paper discusses the pros and cons of different approaches that can be taken when using 14 C dates from this time range where the agreement …

  • A Comparison of Methods Used for the Calibration of Radiocarbon Dates

    T C Aitchison, Morven Leese et al.•ARTICLE•Radiocarbon•1989•Cited by: 17

    Current calibration methods for single and replicate 14 C dates are compared. Various forms of tabular and graphic output are discussed. Results from all the methods show reasonable agreement but further methodological development and improvements in computer output are required. Comparison of existing techniques for a series of non-contemporaneous dates showed less agreement amongst participants on this issue. We recommend that calibrated dates …

  • An Interim Progress Report on Stages 1 and 2 of the International Collaborative Program

    E M Scott, T C Aitchison et al.•ARTICLE•Radiocarbon•1989•Cited by: 16

    We report in this paper on a preliminary analysis of Stages 1 and 2 of the International Collaborative program. We have chosen to concentrate on the internal and external consistencies of the participating laboratories. The two stages so far completed have dealt only with the processes of sample synthesis and counting, and results indicate that the major component of variability lies in the counting process. Outlying laboratories are observed at …

  • C AMS at Suerc: Improving QA Data with the 5MV Tandem and 250KV SSAMS

    Open Access•P Naysmith, G T Cook et al.•ARTICLE•Radiocarbon•2010•Cited by: 15•References: 5

    In 2003, a National Electrostatics Corporation (NEC) 5MV tandem accelerator mass spectrometer was installed at SUERC, providing the radiocarbon laboratory with 14 C measurements to 4–5‰ repeatability. In 2007, a 250kV single-stage accelerator mass spectrometer (SSAMS) was added to provide additional 14 C capability and is now the preferred system for 14 C analysis. Changes to the technology and to our operations are evident in our copious quality…

  • Report on Stage 3 of the International Collaborative Program

    Open Access•T C Aitchison, E M Scott et al.•ARTICLE•Radiocarbon•1990•Cited by: 10•References: 5

    This report on the third and final stage of the International Collaborative Program concentrates on the analysis of internal and external variability of 14 C dates obtained from samples involved in the full 14 C dating process. Thirty-eight laboratories took part in this stage with most producing 8 14 C dates from 3 sets of duplicate material (eg, wood, shell and peat) and 2 single samples of wood of known ages 190 yr BP apart. From the 3 sets of…

  • Anthropogenic Radiocarbon in the Eastern Irish Sea and Scottish Coastal Waters

    Open Access•F H Begg, G T Cook et al.•ARTICLE•Radiocarbon•1992•Cited by: 9•References: 14

    14 C is produced as an activation product in nuclear reactors, and may be discharged to both the atmosphere and the marine environment during nuclear fuel reprocessing. In the UK, 14 C is discharged, under license, into the Eastern Irish Sea by the British Nuclear Fuels plc (BNFL) reprocessing plant at Sellafield, Cumbria, northwest England, and is then transported into Scottish coastal waters. We analyzed intertidal biota samples to determine th…

  • International Collaborative Study: Structuring and Sample Preparation

    Open Access•G T Cook, D D HARKNESS et al.•ARTICLE•Radiocarbon•1990•Cited by: 8•References: 4

    The success of any intercomparison exercise depends largely on participation and cooperation of a sufficient number of laboratories and the selection of a suitable suite of samples. Unless the latter is satisfactorily devised, the former cannot be guaranteed. The hierarchical nature of this study has necessarily resulted in a far more comprehensive set of sample types than has previously been employed. The exercise was structured to satisfy the f…

  • Design and Preparation of Samples for the International Collaborative Study

    D D HARKNESS, G T Cook et al.•ARTICLE•Radiocarbon•1989•Cited by: 8

    Sample materials issued to participants in the interlaboratory calibration exercise are defined and in context of their intended interpretational significance. Preparation of the benzene and calcium carbonate standards as issued for stage 1 is described in detail; likewise, the source and pretreatment/extraction of the environmental samples dispatched for stages 2 and 3

  • Chronology of Key Barrows Belonging to Different Stages of the Scythian Period in Tuva (Arzhan-1 and Arzhan-2 Barrows)

    Open Access•G I Zaitseva, K V Chugunov et al.•ARTICLE•Radiocarbon•2007•Cited by: 7•References: 4

    This paper focuses on the chronological study of 2 Scythian period monuments that are the key to the chronology of the entire Eurasian Scythian culture. These are the unique monuments of Arzhan-1 and Arzhan-2 in Central Asia (Tuva Republic). The dating of both these monuments began immediately after their discovery, but discussion about their chronological position is still current. Both monuments contained considerable wooden material from their…

  • Anthropogenic 14 C Marine Geochemistry in the Vicinity of a Nuclear Fuel Reprocessing Plant

    Open Access•G T Cook, F H Begg et al.•ARTICLE•Radiocarbon•1995•Cited by: 6•References: 23

    The British Nuclear Fuels plc reprocessing plant at Sellafield in Cumbria, Northwest England, discharges between 1 and 3 TBq of 14 C per annum as low-level waste via a pipeline into the Eastern Irish Sea. Our results demonstrate 14 C activities in excess of the current ambient level ( i.e., ca. 260 Bq kg −1 carbon) in a range of both biotic and abiotic samples with evidence that a significant percentage of the discharges are in the form of dissol…

  • Radiocarbon: Present and Future Perspectives on Quality Assurance

    Open Access•E M Scott, Marian Scott et al.•ARTICLE•Antiquity•1990•Cited by: 6•References: 1

    An abstract is not available for this content so a preview has been provided. Please use the Get access link above for information on how to access this content

  • Interlaboratory Comparisons: Lessons Learned

    Open Access•E M Scott, D D HARKNESS et al.•ARTICLE•Radiocarbon•1997•Cited by: 5•References: 8

    Interlaboratory comparisons have been widely used in analytical chemistry and radiochemistry as an important part of ongoing quality assurance programs. The 14 C community has been no exception in this respect, and in just under 20 years, there have been a number of significant and very extensive interlaboratory trials organized by individual laboratories and the International Atomic Energy Agency (IAEA) to the benefit of the 14 C community (both…

  • Analytical Protocol and Quality Assurance for 14 C Analyses: Proposal for A Further Intercomparison

    Open Access•E M Scott, D D HARKNESS et al.•ARTICLE•Radiocarbon•1997•Cited by: 5•References: 4

    We present a proposal for a further intercomparison exercise following discussions at the 16th International Radiocarbon Conference in Groningen in 1997. This new intercomparison will build on previous exercises by making use of both reference materials already characterized and additional known-age material. For this comparison, we describe two separate but essentially related protocols that are meant to satisfy the different priorities of radio…

  • Preliminary Results for Estimating the Bone Background Uncertainties at Suerc Using Statistical Analysis

    Open Access•P Naysmith, Elaine Dunbar et al.•ARTICLE•Radiocarbon•2017•Cited by: 4•References: 28

    Bone is frequently dated in archaeological studies and, especially for very old bones (more than 40,000 years old), it is critical to have an accurate and precise measure of the material-specific background value and its associated uncertainty. The SUERC Radiocarbon Laboratory has obtained a mammoth bone as a background bone standard and an appropriate number are now routinely prepared and measured in each AMS batch, resulting in the accumulation…

  • Investigation of the Analytical F 14 C Bone Background Value at Suerc

    Open Access•Elaine Dunbar, P Naysmith et al.•ARTICLE•Radiocarbon•2017•Cited by: 4•References: 18

    The SUERC Radiocarbon Laboratory employs a one-step “background subtraction” method when calculating 14 C ages. An interglacial wood (VIRI Sample K) is employed as the non-bone organic background standard, while a mammoth bone (LQH12) from Latton Quarry is used as the bone background standard. Results over several years demonstrate that the bone background is consistently around a factor of two higher and more variable than the wood background. A…

  • Chronological Studies of the Arzhan-2 Scythian Monument in Tuva (Russia)

    Open Access•G I Zaitseva, K V Chugunov et al.•ARTICLE•Radiocarbon•2004•Cited by: 4•References: 2

    The first radiocarbon dates from the unique early Scythian monument Arzhan-2, discovered in 2001, are presented. The monument contained a royal burial (grave nr 5). Unfortunately, precise dating is hampered by the Hallstatt plateau in the calibration curve. However, using both accelerator mass spectrometry measurements from buried materials and conventional dates for floating tree rings from the burial chamber, we were able to date the constructi…

  • Is Comparability of 14 C Dates an Issue: A Status Report on the Fourth International Radiocarbon Intercomparison

    Open Access•C Bryant, I Carmi et al.•ARTICLE•Radiocarbon•2001•Cited by: 4•References: 3

    For more than 15 years, the radiocarbon community has participated in a series of laboratory intercomparisons in response to the issue of comparability of measurements as perceived within the wider user communities (Scott et al. 1990; Rozanski et al. 1992; Gulliksen and Scott 1995; Scott et al. 1997). In this report, we provide an update on the current 14 C laboratory intercomparison and reflect on future issues linked to the laboratory intercomp…

  • A Great Lakes-to-Gulf Profile of Dispersed Dwelling Types

    Open Access•Robert Finley, Robert B Finley et al.•ARTICLE•Geographical Review•1940•Cited by: 1

    EGIONAL variations in dwelling types in the United States as a whole have not been determined quantitatively, though intensive work has been done in certain states.' The immediate purpose of this study was to determine the variations in house types along a north-to-south traverse in the mid-section of the United States. The route was selected to pass through as many diverse physical regions as was conveniently possible. It extended from Madison, …

  • Free will or choice

    E M Scott•ARTICLE•American Psychologist•1959

  • Genetic diversity of Athabaskan Indians

    Open Access•E M Scott•ARTICLE•Annals of Human Biology•1979

    If Athabaskan Indians are subdivided by linguistic group, a wide diversity in gene frequencies is disclosed. This diversity approximated that found when linguistically unrelated groups were compared. It was greater than that found for Eskimo-Aleus, even though the latter are more heterogeneous linguistically and subject to a wider variety of environmental conditions. Contiguity, geographic distance, and linguistic similarity were not reflected in…

  • Rare and unusual alleles in Alaskan ethnic groups

    Open Access•E M Scott, Rita C Wright•ARTICLE•Annals of Human Biology•1983

    Frequencies of AK31, AK61, UMPK2, DPGM2, GOT2S, GOT3S, PGP2, RDS2, PGDc, DIA4, NP2 and PEPB6 in 18 language groups were estimated. Four of these alleles occurred in only a single group, but the rest were found in no systematic way in several. The results suggest that some of the alleles were present in early ancestors of these groups, but have disappeared from many of them because of the small size of the groups and their lack of contact with one…

  • A comparison of the treatment of errors in radiocarbon dating calibration methods

    Open Access•E M Scott, Marian Scott et al.•ARTICLE•Journal of Archaeological Science•1984•Cited by: 2

  • Design and Preparation of Samples for the International Collaborative Study

    D D HARKNESS, G T Cook et al.•ARTICLE•Radiocarbon•1989•Cited by: 8

    Sample materials issued to participants in the interlaboratory calibration exercise are defined and in context of their intended interpretational significance. Preparation of the benzene and calcium carbonate standards as issued for stage 1 is described in detail; likewise, the source and pretreatment/extraction of the environmental samples dispatched for stages 2 and 3

  • A Comparison of Methods Used for the Calibration of Radiocarbon Dates

    T C Aitchison, Morven Leese et al.•ARTICLE•Radiocarbon•1989•Cited by: 17

    Current calibration methods for single and replicate 14 C dates are compared. Various forms of tabular and graphic output are discussed. Results from all the methods show reasonable agreement but further methodological development and improvements in computer output are required. Comparison of existing techniques for a series of non-contemporaneous dates showed less agreement amongst participants on this issue. We recommend that calibrated dates …

  • Report on the Workshop on the International Collaborative Study

    E M Scott•ARTICLE•Radiocarbon•1989

    A workshop chaired by the organizers of the International Col- laborative Study was held at the Dubrovnik Conference. This meeting provided an opportunity for the 14C community to discuss the details of the study and the interpretations of the results

  • An Interim Progress Report on Stages 1 and 2 of the International Collaborative Program

    E M Scott, T C Aitchison et al.•ARTICLE•Radiocarbon•1989•Cited by: 16

    We report in this paper on a preliminary analysis of Stages 1 and 2 of the International Collaborative program. We have chosen to concentrate on the internal and external consistencies of the participating laboratories. The two stages so far completed have dealt only with the processes of sample synthesis and counting, and results indicate that the major component of variability lies in the counting process. Outlying laboratories are observed at …

  • An Overview of Some Interlaboratory Studies

    Open Access•E M Scott, M S Baxter et al.•ARTICLE•Radiocarbon•1990•Cited by: 2•References: 4

    Many interlaboratory studies have been made in the 14 C community at irregular intervals over the past ten years. At times, the results from these studies have been contentious, mostly because of the lack of consistency in their findings. The importance of regular exercises has become particularly acute due to the large number of operating laboratories and the diversity of their methodologies. Hence, we briefly review the studies that have been m…

  • Report on Stage 3 of the International Collaborative Program

    Open Access•T C Aitchison, E M Scott et al.•ARTICLE•Radiocarbon•1990•Cited by: 10•References: 5

    This report on the third and final stage of the International Collaborative Program concentrates on the analysis of internal and external variability of 14 C dates obtained from samples involved in the full 14 C dating process. Thirty-eight laboratories took part in this stage with most producing 8 14 C dates from 3 sets of duplicate material (eg, wood, shell and peat) and 2 single samples of wood of known ages 190 yr BP apart. From the 3 sets of…

  • International Collaborative Study: Structuring and Sample Preparation

    Open Access•G T Cook, D D HARKNESS et al.•ARTICLE•Radiocarbon•1990•Cited by: 8•References: 4

    The success of any intercomparison exercise depends largely on participation and cooperation of a sufficient number of laboratories and the selection of a suitable suite of samples. Unless the latter is satisfactorily devised, the former cannot be guaranteed. The hierarchical nature of this study has necessarily resulted in a far more comprehensive set of sample types than has previously been employed. The exercise was structured to satisfy the f…

  • An Overview of All Three Stages of the International Radiocarbon Intercomparison

    Open Access•E M Scott, T C Aitchison et al.•ARTICLE•Radiocarbon•1990•Cited by: 24•References: 2

    The International Collaborative Study involved a wide range of sample materials and ages and, on completion, assessed each stage independently (Scott et al 1989; Aitchison et al 1990). We combine here the three stages of the study and provide an overview of the uncertainties in the dating procedure as a whole and in its component processes. Three key optimal performance indices, related to internal and external precision and to bias, have been de…

  • Radiocarbon: Present and Future Perspectives on Quality Assurance

    Open Access•E M Scott, Marian Scott et al.•ARTICLE•Antiquity•1990•Cited by: 6•References: 1

    An abstract is not available for this content so a preview has been provided. Please use the Get access link above for information on how to access this content

  • Further Analysis of the International Intercomparison Study (ICS)

    Open Access•E M Scott, G T Cook et al.•ARTICLE•Radiocarbon•1992•Cited by: 1•References: 9

    The major findings of the Intercomparison Study (ICS) have already been published (Scott, Long & Kra 1990), but a number of questions remain unresolved. We address here some issues of user and technical relevance, which include: 1) further investigation of the quoted errors and their relation to the perceived precision and accuracy, which is of interest to users of 14 C dates; 2) the analysis of the known-age wood samples provided in Stages 2 and…

  • The IAEA 14 C Intercomparison Exercise 1990

    Open Access•Kazimierz Rozanski, Willibald Stichler et al.•ARTICLE•Radiocarbon•1992•Cited by: 96•References: 10

    As a follow-up to the meeting of experts convened at the International Atomic Energy Agency (IAEA) in February 1989, and the International 14 C Workshop held in Glasgow in September 1989, the 14 C Quality Assurance Program was formulated. In a joint effort of several radiocarbon teams and IAEA staff, we have prepared a set of five new intercomparison materials. These are natural materials frequently used by radiocarbon laboratories. The materials…

  • The Statistics of Low-Level Counting Using the New Generation of Packard Liquid Scintillation Counters

    Open Access•G T Cook, E M Scott et al.•ARTICLE•Radiocarbon•1992•Cited by: 2•References: 8

    We consider the suitability of commonly used Poisson counting statistics applied to background count rates measured in the new generation of low-background Packard liquid scintillation spectrometers. We also investigate the stability of these systems over long time intervals. Undetected instability will result in an underestimation of the precision of any result ( i.e., the calculated error will be too small), and, in the presence of a systematic…

  • Anthropogenic Radiocarbon in the Eastern Irish Sea and Scottish Coastal Waters

    Open Access•F H Begg, G T Cook et al.•ARTICLE•Radiocarbon•1992•Cited by: 9•References: 14

    14 C is produced as an activation product in nuclear reactors, and may be discharged to both the atmosphere and the marine environment during nuclear fuel reprocessing. In the UK, 14 C is discharged, under license, into the Eastern Irish Sea by the British Nuclear Fuels plc (BNFL) reprocessing plant at Sellafield, Cumbria, northwest England, and is then transported into Scottish coastal waters. We analyzed intertidal biota samples to determine th…

  • Making the most of radiocarbon dating: Some Statistical Considerations

    Open Access•Caitlin E Buck, C D Litton et al.•ARTICLE•Antiquity•1994•Cited by: 22•References: 13

    The revised radiocarbon calibration curve, published last year, extends back into the Pleistocene the radiocarbon determinations that can be converted to real calendar years. For determinations of any age, the right judgements and statistical considerations must be followed if the real information held in the determinations is to be found. Here is advice with some worked examples

  • Anthropogenic 14 C Marine Geochemistry in the Vicinity of a Nuclear Fuel Reprocessing Plant

    Open Access•G T Cook, F H Begg et al.•ARTICLE•Radiocarbon•1995•Cited by: 6•References: 23

    The British Nuclear Fuels plc reprocessing plant at Sellafield in Cumbria, Northwest England, discharges between 1 and 3 TBq of 14 C per annum as low-level waste via a pipeline into the Eastern Irish Sea. Our results demonstrate 14 C activities in excess of the current ambient level ( i.e., ca. 260 Bq kg −1 carbon) in a range of both biotic and abiotic samples with evidence that a significant percentage of the discharges are in the form of dissol…

  • A Review of 14 C Waste Arising from the Nuclear Industry in the United Kingdom

    Open Access•Niall McNamara, Niall P McNamara et al.•ARTICLE•Radiocarbon•1997

    We report on a review of 14 C production and release from the nuclear industry in the United Kingdom (UK). Using earlier predictions (Bush, White and Smith 1984) it is estimated that a total of 1764 TBq of 14 C would have been produced in UK graphite-moderated reactors up to the end of 1995, and 135 TBq of this total would have been released. Release rates, based on reported discharges, of 5.1 and 0.93 TBq GW(e)a -1 have been derived for Magnox r…

  • Consensus Dating of Mammoth Remains from Wrangel Island

    Open Access•Kh A Arslanov, G T Cook et al.•ARTICLE•Radiocarbon•1997•References: 4

    Previous results from remains of tusks, teeth and bones collected from Wrangel Island (Vartanyan et al . 1995) had given results in the range 3730 bp to 20,000 bp and the authors had concluded that “mammoths inhabited Wrangel Island for as long as 6000 yr after the estimated extinction on the Siberian continent”. There still remained the question of the earliest date for such remains. Further, the authors had noted such samples may present some d…

  • Interlaboratory Comparisons: Lessons Learned

    Open Access•E M Scott, D D HARKNESS et al.•ARTICLE•Radiocarbon•1997•Cited by: 5•References: 8

    Interlaboratory comparisons have been widely used in analytical chemistry and radiochemistry as an important part of ongoing quality assurance programs. The 14 C community has been no exception in this respect, and in just under 20 years, there have been a number of significant and very extensive interlaboratory trials organized by individual laboratories and the International Atomic Energy Agency (IAEA) to the benefit of the 14 C community (both…

  • Analytical Protocol and Quality Assurance for 14 C Analyses: Proposal for A Further Intercomparison

    Open Access•E M Scott, D D HARKNESS et al.•ARTICLE•Radiocarbon•1997•Cited by: 5•References: 4

    We present a proposal for a further intercomparison exercise following discussions at the 16th International Radiocarbon Conference in Groningen in 1997. This new intercomparison will build on previous exercises by making use of both reference materials already characterized and additional known-age material. For this comparison, we describe two separate but essentially related protocols that are meant to satisfy the different priorities of radio…

  • What Future for Radiocarbon

    Open Access•E M Scott, D D HARKNESS•ARTICLE•Radiocarbon•2000•References: 1

    In this short article, we summarize some milestones in the 50-yr-long development of natural 14 C measurement. In the light of this appraisal we presume to hazard some personal opinions and forecasts as to where best opportunities might lie for future gains from the continued investment in applied 14 C science. The technique and the journal are one and the same in this regard

Archaeology and ancient environmental studies (34 works) · Radiocarbon dating (33 works) · Archaeology (27 works) · Geography (27 works) · Geology (26 works) · Mathematics (19 works) · Computer Science (16 works) · Chemistry (15 works) · Environmental Science (15 works) · Isotope Analysis in Ecology (14 works)

Ethnos_APP • Open Source Project • MIT License • Frontend v2.0.0 • Privacy and Cookies • API Documentation: api.ethnos.app/docs • API Source Code: GitHub • DOI: 10.5281/zenodo.17049435 • Frontend Source Code: GitHub • DOI: 10.5281/zenodo.17050053 • cruz.rio.br • Expectantes Misericordiae