scholarly journals Analyzing Radiocarbon Reservoir Offsets Through Stable Nitrogen Isotopes and Bayesian Modeling: A Case Study Using Paired Human and Faunal Remains from the Cis-Baikal Region, Siberia

Radiocarbon ◽  
2014 ◽  
Vol 56 (2) ◽  
pp. 789-799 ◽  
Author(s):  
Christopher Bronk Ramsey ◽  
Rick Schulting ◽  
Olga I Goriunova ◽  
Vladimir I Bazaliiskii ◽  
Andrzej W Weber
Keyword(s):  
Baikal Region ◽  
Nitrogen Isotopes ◽  
Linear Regression Analysis ◽  
Faunal Remains ◽  
Cultural Dynamics ◽  
Radiocarbon Dates ◽  
Human Material ◽  
Set Up ◽  
Freshwater Reservoir

Dietary offsets in radiocarbon dates are becoming increasingly interesting to researchers, not only because of their impact on the reliability of chronologies but also because of the possibilities for extracting further dietary information from the14C data itself. This is the case with the cemeteries of the Cis-Baikal region being studied as part of the international Baikal-Hokkaido Archaeology Project set up to examine hunter-gatherer cultural dynamics in eastern Asia. Fortunately, to control for a freshwater reservoir offset, we were able to obtain a number of paired terrestrial herbivore and human material for14C dating. This article tests the correspondence between stable isotope evidence and the offsets seen in14C values and the implications for the analysis of the14C measurements as “chronometric dates.” This is an unusually well-documented example of freshwater reservoir offsets, providing an ideal case study to test different approaches to analyzing such offset information. Here, a purely Bayesian approach is compared with the more frequently applied linear regression analysis.

scholarly journals Analyzing Radiocarbon Reservoir Offsets Through Stable Nitrogen Isotopes and Bayesian Modeling: A Case Study Using Paired Human and Faunal Remains from the Cis-Baikal Region, Siberia

Radiocarbon ◽  
2014 ◽  
Vol 56 (02) ◽  
pp. 789-799 ◽  
Author(s):  
Christopher Bronk Ramsey ◽  
Rick Schulting ◽  
Olga I Goriunova ◽  
Vladimir I Bazaliiskii ◽  
Andrzej W Weber
Keyword(s):  
Baikal Region ◽  
Nitrogen Isotopes ◽  
Linear Regression Analysis ◽  
Faunal Remains ◽  
Cultural Dynamics ◽  
Radiocarbon Dates ◽  
Human Material ◽  
Set Up ◽  
Freshwater Reservoir

Dietary offsets in radiocarbon dates are becoming increasingly interesting to researchers, not only because of their impact on the reliability of chronologies but also because of the possibilities for extracting further dietary information from the14C data itself. This is the case with the cemeteries of the Cis-Baikal region being studied as part of the international Baikal-Hokkaido Archaeology Project set up to examine hunter-gatherer cultural dynamics in eastern Asia. Fortunately, to control for a freshwater reservoir offset, we were able to obtain a number of paired terrestrial herbivore and human material for14C dating. This article tests the correspondence between stable isotope evidence and the offsets seen in14C values and the implications for the analysis of the14C measurements as “chronometric dates.” This is an unusually well-documented example of freshwater reservoir offsets, providing an ideal case study to test different approaches to analyzing such offset information. Here, a purely Bayesian approach is compared with the more frequently applied linear regression analysis.

scholarly journals Chronology of the Neolithic Ceramics of Baikal-Yenisei Siberia: Basic Ideas and New Data

2020 ◽  
Vol 33 ◽  
pp. 23-53
Author(s):  
I. M. Berdnikov ◽  
◽  
O. I. Goriunova ◽  
A. G. Novikov ◽  
N. E. Berdnikova ◽  
...  
Keyword(s):  
Lake Baikal ◽  
Nitrogen Isotopes ◽  
Faunal Remains ◽  
Radiocarbon Dates ◽  
Main Research ◽  
Research Areas ◽  
Ceramic Vessels ◽  
Basic Ideas ◽  
Freshwater Reservoir ◽  
Technical Assessment

There are two main research areas in the Neolithic studies of the Baikal-Yenisei Siberia. One of them relates to research of mortuary traditions, another with a research of hunter-gatherer’s campsites. Ceramics is of the greatest importance for the cultural identification of campsites complexes. As a result of the Canadian-Russian project, for the Neolithic burials a clear chronological model based on AMS radiocarbon dates corrected for the freshwater reservoir effect (FRE) was created. There are several hypotheses for ceramic complexes that were proposed, but all of them predominantly were based on the radiocarbon dates obtained by the liquid scintillation counting method. This data cannot be admitted as reliable because of the limitation of this method, the big root-mean-square deviation, and the lack of data on stable carbon and nitrogen isotopes. Over the past few years, we have received in the Keck-CCAMS Group and Oxford Radiocarbon Accelerator Unit laboratories 35 new AMS-radiocarbon dates for the complexes with Neolithic ceramics. Samples taken for analyses were obtained from the 14 multilayered sites of the Angara region, Tunka valley, and Lake Baikal coast. They are represented by fragments of teeth, bones, and horns of the mammals (predominantly Cervidae and large ungulates) that accompanied pottery in cultural horizons. In five cases the carbonized organic residues (foodcrusts) from the inner surface of ceramic vessels were used as samples. In one more case, it was a strong humified soil cleaned from impurities. The technical assessment of the reliability of all dates was provided. The definitions obtained for faunal remains look the most correct. Dates obtained for foodcrust are likely significantly older, because of possible FRE influence. The geoarchaeological assessment of new dates and their correlation with the most reliable dates of previous years is provided. Based on the AMC-dating, the following chronometric frames for the Neolithic pottery of the Baikal-Yenisei Siberia are offered: Early Neolithic Net-impressed and the Khaita ceramics in the Angara region – 8539–6914 cal BP, on the Lake Baikal coast – 8160–6960 cal BP, in the Tunka valley – 7843–7681 cal BP; Ust-Belaya ceramics in the Northern Angara region – 7421–7014 cal BP (perhaps the real age is younger), in the Southern Angara region – 6730–6306 cal BP; Posolskaya ceramics on the Lake Baikal coast – 6750–6300 cal BP, in the Southern Angara region – 6730–6306 cal BP; Serovo and Dotted-comb ceramics on the Lake Baikal coast – 5841–4620 cal BP.

Freshwater Reservoir Offsets Investigated Through Paired Human-Faunal14C Dating and Stable Carbon and Nitrogen Isotope Analysis at Lake Baikal, Siberia

Radiocarbon ◽  
2014 ◽  
Vol 56 (3) ◽  
pp. 991-1008 ◽  
Author(s):  
Rick J Schulting ◽  
Christopher Bronk Ramsey ◽  
Vladimir I Bazaliiskii ◽  
Olga I Goriunova ◽  
Andrzej Weber
Keyword(s):  
Bronze Age ◽  
Lake Baikal ◽  
Nitrogen Isotope ◽  
Natural Ecosystem ◽  
Strong Positive Correlation ◽  
Faunal Remains ◽  
Data Set ◽  
Radiocarbon Dates ◽  
Positive Correlation ◽  
Freshwater Reservoir

Thirty-three paired accelerator mass spectrometry (AMS) radiocarbon dates on human and terrestrial faunal remains from the same Neolithic and Early Bronze Age graves are used to develop a correction for the freshwater reservoir effect (FRE) at Lake Baikal, Siberia. Excluding two outliers, stable nitrogen isotope (δ15N) values show a positive correlation(r2= 0.672,p< 0.000) with offsets in14C yr between paired human and fauna determinations. The highest offset observed in our data set is 622 yr, which is close to the value of ∼700 yr suggested for endemic seals in the lake. For each per mil increase in δ15N, the offset increases by 77 ± 10 yr in the overall data set. However, there are indications that different regression models apply in each of two microregions of Cis-Baikal. In the first, sites on the southwest shore of the lake and along the Angara River show a strong positive correlation between δ15N values and offsets in14C yr (r2= 0.814,p< 0.000). In the other, the Little Sea, both δ13C and δ15N values make significant contributions to the model (adjustedr2= 0.878; δ13Cp< 0.001; δ15Np< 0.000). This can be related to the complex13C ecology of the lake, which displays one of the widest ranges of δ13C values known for any natural ecosystem. The results will be important in terms of refining the culture-history of the region, as well as exploring the dynamic interactions of hunter-gatherer communities both synchronically and diachronically.

CERAMIC SEQUENCE, CHRONOLOGY, AND CULTURAL DYNAMICS OF THE UCAREO-ZINAPÉCUARO, MICHOACÁN OBSIDIAN SOURCE AREA

2021 ◽  
pp. 1-21
Author(s):  
Dan M. Healan ◽  
Christine Hernández
Keyword(s):  
Source Area ◽  
Central Mexico ◽  
Cultural Dynamics ◽  
Postclassic Period ◽  
Radiocarbon Dates ◽  
Pottery Analysis ◽  
Ceramic Chronology ◽  
Cross Dating ◽  
Obsidian Source

Abstract This article presents the ceramic sequence and chronology resulting from a multi-year program of survey, excavation, and analysis of pre-Hispanic settlement and exploitation within the Zinapécuaro-Ucareo (“U-Z”), Michoacan obsidian source area. Pottery analysis and classification aided by seriation analysis identified nine ceramic complexes and seven ceramic phases and sub-phases that both expand and refine the ceramic sequence previously established for the region by Gorenstein's (1985) investigations at nearby Acámbaro, Guanajuato. Initially established by ceramic cross-dating, the U-Z ceramic chronology has been largely confirmed by 30 radiocarbon dates and spans over 2,000 years of pre-Hispanic settlement, which included at least two notable episodes of trait-unit and site-unit intrusion from the eastern El Bajío and central Mexico. One of these episodes involved the appearance of two enclaves settled by individuals from the Acambay valley c. 90 km to the East, most likely from the site of Huamango, which our data indicate would have been occupied during the Middle Postclassic period.

scholarly journals Attitudes to and experience of disease management programs in primary care—an exploratory survey of general practitioners in Germany

2021 ◽  
Author(s):  
Julian Wangler ◽  
Michael Jansky
Keyword(s):  
Primary Care ◽  
Disease Management ◽  
Patient Care ◽  
General Practitioners ◽  
Linear Regression Analysis ◽  
Chronically Ill ◽  
Disease Management Programs ◽  
Federal States ◽  
Set Up ◽  
Chronically Ill Patients

Summary Background Disease management programs (DMPs) were set up in Germany in 2003 to improve outpatient care of chronically ill patients. The present study looks at the attitudes and experiences of general practitioners (GPs) in relation to DMPs, how they rate them almost 20 years after their introduction and where they see a need for improvement. Methods A total of 1504 GPs in the Federal States of Rhineland Palatinate, Saarland and Hesse were surveyed between December 2019 and March 2020 using a written questionnaire. Results In total, 58% of respondents rate DMPs positively and regard them as making a useful contribution to primary care. The guarantee of regular, structured patient care and greater compliance are regarded as particularly positive aspects. It was also established that diagnostic and therapeutic knowledge was expanded through participation in DMPs. 57% essentially follow the DMP recommendations for (drug) treatment. Despite positive experiences of DMPs in patient care, the GPs surveyed mention various challenges (documentation requirements, frequent changes to the programmes, inflexibility). Univariant linear regression analysis revealed factors influencing the satisfaction with DMPs, such as improvement of compliance and clearly defined procedures in medical care. Conclusion Most of the GPs surveyed consider the combination of continuous patient care and evidence-based diagnosis and treatment to be a great advantage. To better adapt DMPs to the conditions of primary care, it makes sense to simplify the documentation requirements, to regulate cooperation with other healthcare levels more clearly and to give GPs more decision-making flexibility. Increased inclusion of GP experience in the process of developing and refining DMPs can be helpful.

scholarly journals Towards Zero Emissions Noosa

2019 ◽  
Vol 11 (17) ◽  
pp. 4679
Author(s):  
Carina Anderson ◽  
Robert Passey ◽  
Jeremy De Valck ◽  
Rakibuzzaman Shah
Keyword(s):  
Community Engagement ◽  
Focal Point ◽  
Contextual Information ◽  
Renewable Electricity ◽  
Community Group ◽  
Course Of Action ◽  
Engagement Process ◽  
Set Up ◽  
External Consultant

This paper reports on a case study of the community group Zero Emissions Noosa, whose goal is for 100% renewable electricity in the Noosa Shire (Queensland, Australia) by 2026. Described within this paper are the processes used by Zero Emissions Noosa to set up their zero emissions plan, involving community engagement and the use of an external consultant. The external consultant was employed to produce a detailed report outlining how to successfully achieve zero emissions from electricity in the Noosa Shire by 2026. This paper explains how and why the community engagement process used to produce the report was just as important as the outcomes of the report itself. Modeling was undertaken, and both detailed and contextual information was provided. Inclusion of the community in developing the scenario parameters for the modeling had a number of benefits including establishing the context within which their actions would occur and focusing their efforts on options that were technically feasible, financially viable and within their capabilities to implement. This provided a focal point for the community in calling meetings and contacting stakeholders. Rather than prescribing a particular course of action, it also resulted in a toolbox of options, a range of possible solutions that is flexible enough to fit into whatever actions are preferred by the community. The approach and outcomes discussed in this paper should, therefore, be useful to other communities with similar carbon emission reduction goals.

Missiological implications for Taylor Seminary arising from Canada’s Truth and Reconciliation Commission’s recommendations

2017 ◽  
Vol 45 (4) ◽  
pp. 407-413
Author(s):  
Allan Effa
Keyword(s):  
First Nations ◽  
Truth And Reconciliation Commission ◽  
Final Report ◽  
Cooperative Effort ◽  
Truth And Reconciliation ◽  
Cultural Genocide ◽  
The Government ◽  
Government Of Canada ◽  
Set Up

In 2015 the Truth and Reconciliation Commission of Canada concluded a six-year process of listening to the stories of Canada’s First Nations, Inuit and Métis peoples. More than 6000 witnesses came forth to share their personal experiences in listening sessions set up all across the country. These stories primarily revolved around their experience of abuse and cultural genocide through more than 100 years of Residential Schools, which were operated in a cooperative effort between churches and the government of Canada. The Commission’s Final Report includes 94 calls to action with paragraph #60 directed specifically to seminaries. This paper is a case study of how Taylor Seminary, in Edmonton, is seeking to engage with this directive. It explores the changes made in the curriculum, particularly in the teaching of missiology, and highlights some of the ways the seminary community is learning about aboriginal spirituality and the history and legacy of the missionary methods that have created conflict and pain in Canadian society.

BUSINESS ENVIRONMENT EFFICIENCY AND COMPETTIIVENESS OF LOCALLY MANUFACTURED GOODS BY AUTOSTERILE EAST AFRICA, KENYA

2021 ◽  
pp. 12-21
Author(s):  
Margaret Kamau ◽  
Isabella Sile
Keyword(s):  
East Africa ◽  
Linear Regression Analysis ◽  
Secondary Data ◽  
Political Stability ◽  
Business Environment ◽  
Middle Level ◽  
Primary Data ◽  
Goods And Services ◽  
Manufactured Goods

Absrtact This study investigated the influence of business environment efficiency on competitiveness of locally manufactured goods by Autosterile East Africa, Kenya. This study used case study design. This study sampled 69 respondents, including 8 top level employees, 22 middle level employees and 39 lower level employees in Autosterile East Africa. Census sampling was used to select the respondents. Secondary data was obtained from the Autosterile East Africa publications that touches on determinants of competitiveness. Questionnaires used in the survey formed the primary data and was analyzed by use of Statistical Packages for Social Science version 23. Linear regression analysis was done to test the relationship between the independent and dependent variables. The study findings led to the conclusion that business environment efficiency have a positive relationship with competitiveness of locally manufactured goods. The findings revealed that business environment efficiency is significant determinant of competitiveness of locally manufactured goods. It was found out that the demand for goods and services and political stability influences competition of goods and services. The regulations dictate the competition among companies and supply of goods and services controls a firm's competitive advantage. Keywords: Business environment efficiency, competitiveness, Locally manufactured goods, Autosterile East Africa.

Interpersonal Therapy in Primary Infertility, Life-Cycle Transitions, and Dysthymia: A Single Case Study

2021 ◽  
pp. 153465012110382
Author(s):  
Sampurna Chakraborty ◽  
Prasanta K. Roy
Keyword(s):  
Rating Scale ◽  
Single Case ◽  
Interpersonal Psychotherapy ◽  
Single Case Study ◽  
Interpersonal Therapy ◽  
Primary Infertility ◽  
Set Up ◽  
Psychosocial Perspective ◽  
Evidence Based Therapy

Interpersonal psychotherapy (IPT) is an evidence-based therapy, originally developed to treat major depression. IPT conceptualizes depression from a bio-psychosocial perspective where signs of depression are understood in the context of an individual’s current social and interpersonal stressors, defined in terms of role transitions, disputes, bereavements, and sensitivities. In this single case study, IPT was used to treat a woman undergoing primary infertility with multiple failed pregnancies and unsuccessful adoption procedures along with specific grief reactions and depressive symptoms for 2 years. The therapy was formulated over 12 weekly sessions in the outpatient set-up in a general hospital in Kolkata in 2017. Hamilton Depression Rating Scale (HDRS) was used to assess the efficacy of the therapy and its outcomes. The therapy was found to be effective in the patient and justifies the rationale of choosing the said therapy for the specific case from an interpersonal viewpoint. The case study may help suggest how and why to use interpersonal psychotherapy in infertility conditions with psychological ramifications.

GIS Based Multi-Criteria decision support system and machine learning for Hospital Site Selection case study Oran - Algeria

2022 ◽  
Vol 14 (1) ◽  
pp. 0-0
Keyword(s):  
Site Selection ◽  
Decision Makers ◽  
Analysis Method ◽  
Automatic Learning ◽  
Hospital Site ◽  
Set Up ◽  
High Level ◽  
Selection Of ◽  
The Ideal

The selection of hospital sites is one of the most important choice a decision maker has to take so as to resist the pandemic. The decision may considerably affect the outbreak transmission in terms of efficiency , budget, etc. The main targeted objective of this study is to find the ideal location where to set up a hospital in the willaya of Oran Alg. For this reason, we have used a geographic information system coupled to the multi-criteria analysis method AHP in order to evaluate diverse criteria of physiological positioning , environmental and economical. Another objective of this study is to evaluate the advanced techniques of the automatic learning . the method of the random forest (RF) for the patterning of the hospital site selection in the willaya of Oran. The result of our study may be useful to decision makers to know the suitability of the sites as it provides a high level of confidence and consequently accelerate the power to control the COVID19 pandemic.

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