Isotopic Confirmation of the Timing and Intensity of Maize Consumption in Greater Cahokia

2020 ◽  
Vol 85 (2) ◽  
pp. 241-262
Author(s):  
Thomas E. Emerson ◽  
Kristin M. Hedman ◽  
Mary L. Simon ◽  
Mathew A. Fort ◽  
Kelsey E. Witt
Keyword(s):  
Mississippi River ◽  
Zea Mays L ◽  
Subsistence Level ◽  
American Bottom ◽  
Eastern Woodlands ◽  
Early Introduction ◽  
Bottom Region ◽  
Maize Cultivation ◽  
Important Study ◽  
History Of

The history of maize (Zea mays L.) in the eastern Woodlands remains an important study topic. As currently understood, these histories appear to vary regionally and include scenarios positing an early introduction and an increase in use over hundreds of, if not a thousand, years. In this article, we address the history of maize in the American Bottom region of Illinois and its importance in the development of regional Mississippian societies, specifically in the Cahokian polity located in the central Mississippi River valley. We present new lines of evidence that confirm subsistence-level maize use at Cahokia was introduced rather abruptly at about AD 900 and increased rapidly over the following centuries. Directly dated archaeobotanical maize remains, human and dog skeletal carbon isotope values, and a revised interpretation of the archaeological record support this interpretation. Our results suggest that population increases and the nucleation associated with Cahokia were facilitated by the newly introduced practices of maize cultivation and consumption. Maize should be recognized as having had a key role in providing subsistence security that—combined with social, political, and religious changes—fueled the emergence of Cahokia in AD 1050.

scholarly journals Effects of NP Fertilizer Placement Depth by Year Interaction on the Number of Maize (Zea mays L.) Plants after Emergence Using the Additive Main Effects and Multiplicative Interaction Model

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1543
Author(s):  
Piotr Szulc ◽  
Jan Bocianowski ◽  
Kamila Nowosad ◽  
Henryk Bujak ◽  
Waldemar Zielewicz ◽  
...  
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Interaction Model ◽  
Fertilizer Application ◽  
Fertilizer Placement ◽  
Multiplicative Interaction ◽  
Maize Cultivation ◽  
Main Effects ◽  
Placement Depth ◽  
Np Fertilizer

Field experiments were carried out at the Department of Agronomy of the Poznań University of Life Sciences to determine the effect of the depth of NP fertilization placement in maize cultivation on the number of plants after emergence. The adopted assumptions were verified based on a six-year field experiment involving four depths of NP fertilizer application (A1—0 cm (broadcast), A2—5 cm (in rows), A3—10 cm (in rows), A4—15 cm (in rows)). The objective of this study was to assess NP fertilizer placement depth, in conjunction with the year, on the number of maize (Zea mays L.) plants after emergence using the additive main effects and multiplicative interaction model. The number of plants after emergence decreased with the depth of NP fertilization in the soil profile, confirming the high dependence of maize on phosphorus and nitrogen availability, as well as greater subsoil loosening during placement. The number of plants after emergence for the experimental NP fertilizer placement depths varied from 7.237 to 8.201 plant m−2 during six years, with an average of 7.687 plant m−2. The 61.51% of variation in the total number of plants after emergence was explained by years differences, 23.21% by differences between NP fertilizer placement depths and 4.68% by NP fertilizer placement depths by years interaction. NP fertilizer placement depth 10 cm (A3) was the most stable (ASV = 1.361) in terms of the number of plants after emergence among the studied NP fertilizer placement depths. Assuming that the maize kernels are placed in the soil at a depth of approx. 5 cm, the fertilizer during starter fertilization should be placed 5 cm to the side and below the kernel. Deeper NP fertilizer application in maize cultivation is not recommended. The condition for the use of agriculture progress, represented by localized fertilization, is the simultaneous recognition of the aspects of yielding physiology of new maize varieties and the assessment of their reaction to deeper seed placement during sowing.

scholarly journals A Brief History of Medieval Monasticism in Denmark (with Schleswig, Rügen and Estonia)

Religions ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 469
Author(s):  
Johnny Grandjean Gøgsig Jakobsen
Keyword(s):  
Early Introduction ◽  
The Reformation ◽  
History Of ◽  
The Individual

Monasticism was introduced to Denmark in the 11th century. Throughout the following five centuries, around 140 monastic houses (depending on how to count them) were established within the Kingdom of Denmark, the Duchy of Schleswig, the Principality of Rügen and the Duchy of Estonia. These houses represented twelve different monastic orders. While some houses were only short lived and others abandoned more or less voluntarily after some generations, the bulk of monastic institutions within Denmark and its related provinces was dissolved as part of the Lutheran Reformation from 1525 to 1537. This chapter provides an introduction to medieval monasticism in Denmark, Schleswig, Rügen and Estonia through presentations of each of the involved orders and their history within the Danish realm. In addition, two subchapters focus on the early introduction of monasticism to the region as well as on the dissolution at the time of the Reformation. Along with the historical presentations themselves, the main and most recent scholarly works on the individual orders and matters are listed.

James C. Knox (1977) Human impacts on Wisconsin stream channels. Annals of the Association of American Geographers 67: 224–244.

2013 ◽  
Vol 37 (3) ◽  
pp. 422-431 ◽  
Author(s):  
William L. Graf
Keyword(s):  
Mississippi River ◽  
Human Impacts ◽  
Professional Community ◽  
River System ◽  
Stream Channels ◽  
Early 19Th Century ◽  
Driftless Area ◽  
University Of Wisconsin ◽  
History Of ◽  
Floodplain Deposits

James C. Knox’s 1977 paper “Human Impacts on Wisconsin Stream Channels,” published in the Annals of the Association of American Geographers, was a key component of a suite of three papers by him defining the response of rivers to the introduction and management of agriculture and to climate change. In this paper he used the Driftless Area of southwest Wisconsin as a laboratory where he could define fluvial responses by their sedimentary signatures in floodplain deposits. Land-use records dating back to the early 19th century along with shorter climate records provided his understanding of the drivers of change. He found that floods increased as an outcome of land-cover change. Upstream tributaries became wider and shallower as coarse deposits limited their adjustments, while main stem channels became narrower and deeper. His paper reflected the influence of his graduate advisor and especially of prominent faculty colleagues at the University of Wisconsin from fields ranging from soils and climatology to geomorphology and history. The paper was the subject of considerable debate in the professional community, but it remains a much-cited example of Knox’s work in unraveling the Quaternary and Holocene history of rivers of the Driftless Area and by extension the upper Mississippi River system.

Epidemiology of Physician-Diagnosed Allergic Rhinitis in Childhood

PEDIATRICS ◽  
1994 ◽  
Vol 94 (6) ◽  
pp. 895-901
Author(s):  
Anne L. Wright ◽  
Catharine J. Holberg ◽  
Marilyn Halonen ◽  
Fernando D. Martinez ◽  
Wayne Morgan ◽  
...  
Keyword(s):  
Risk Factors ◽  
Allergic Rhinitis ◽  
Immunoglobulin E ◽  
Age At Onset ◽  
First Year ◽  
Healthy Children ◽  
Early Introduction ◽  
Maternal Cigarette Smoking ◽  
History Of ◽  
First Year Of Life

Objective. To investigate the natural history of and risk factors for allergic rhinitis in the first 6 years of life. Methods. Parents of 747 healthy children followed from birth completed a questionnaire when the child was 6 years old. Data were obtained regarding physician-diagnosed allergic rhinitis (PDAR), associated symptoms, and age at onset. Risk-factor data were taken from earlier questionnaires, and data regarding immunoglobulin E (IgE) and skin-test reactivity were obtained at age 6. Results. By the age of 6, 42% of children had PDAR. Children whose rhinitis began in the first year of life had more respiratory symptoms at age 6 and were more likely to have a diagnosis of asthma. Early introduction of foods or formula, heavy maternal cigarette smoking in the first year of life, and higher IgE, as well as parental allergic disorders, were associated with early development of rhinitis. Risk factors for PDAR that remained significant in a multivanate model included maternal history of physician-diagnosed allergy (odds ratio: 2.2, 95% confidence interval: 1.35-3.54), asthma in the child (4.06, 2.06-7.99), and IgE greater than 100 IU/mL at age 6 (1.93, 1.18-3.17). The odds for atopic as opposed to nonatopic PDAR were significantly higher only among those with high IgE and those who had dogs. Conclusion. Allergic rhinitis developing in the first years of life is an early manifestation of an atopic predisposition, which may be triggered by early environmental exposures.

scholarly journals KEMAMPUAN Azetobacter sp. DALAM MENINGKATKAN EFISIENSI PEMUPUKAN UREA PADA TANAMAN JAGUNG (Zea mays L.)

BUANA SAINS ◽  
2018 ◽  
Vol 18 (1) ◽  
pp. 1 ◽  
Author(s):  
Nur Winda Rachmadhani ◽  
Didik Hariyono ◽  
Mudji Santoso
Keyword(s):  
Zea Mays ◽  
Soil Fertility ◽  
Microbial Activity ◽  
Zea Mays L ◽  
Maize Yield ◽  
Symbiotic Bacteria ◽  
Chemical Fertilizers ◽  
Plant Utilization ◽  
Maize Cultivation ◽  
Urea Fertilization

Azotobacter sp. is a non-symbiotic bacteria that has the ability to mobilize nitrogen from a form that is not available in a form that is available for plants. Inoculation of Azotobacter sp. into the planting medium can be used as a supplier of nitrogen required by the plant. Utilization of Azotobacter sp. as biofertilizer has the ability to minimize the use of chemical fertilizers, improve the soil fertility and increase the microbial activity in the rhizosphere of plants. Inoculation of Azotobacter sp. into the planting medium is one alternative to improve the efficiency of urea fertilizer in the maize cultivation. The result of this research showed that the application of Azotobacter sp. with the dose of 10 ml l-1 and 20 ml l-1 on the urea fertilization with the dose of 150 kg ha-1 were able to increase the growth of maize, so that maize has growth that was not significantly different with the maize that got urea with the dose of 225 kg ha-1 and 300 kg ha-1. Inoculation of Azotobacter sp. in the planting media, either with the dose of 10 ml l-1or 20 ml l-1were able to increase the maize yield when compared to the treatment without Azotobacter sp. Inoculation of Azotobacter sp. into the planting medium was able to increase the maize yield. However, increasing the dose of Azotobacter sp. more than 10 ml l-1 did not affect to increase the maize yield. Maize yield reached the optimum value when the dose of urea supplied was153.50 kg ha-1.

scholarly journals Development and Role of the Subsistence Minimum in the Payrolls Legislation in Slovakia from year 1993

2021 ◽  
Vol 129 ◽  
pp. 09011
Author(s):  
Zuzana Kubaščíková ◽  
Zuzana Juhaszová ◽  
Miloš Tumpach ◽  
Renáta Stanley
Keyword(s):  
Slovak Republic ◽  
Value Added ◽  
Subsistence Level ◽  
Tax Base ◽  
National Regulation ◽  
Subsistence Minimum ◽  
History Of ◽  
Constructive Criticism ◽  
The Given

Research background: The subsistence minimum category is used in the Slovak Republic in determining several wage and tax categories. In this paper I analyze whether the set standard of living is sufficient with regard to the development of the average wage since 1993 to the present day. Subsequently, the quantities that are based on the subsistence level - non-taxable amounts of the taxpayers’ tax base are also analyzed. The results of the analysis show that the distance between the subsistence level and the level of non-taxable parts has gradually increased. The topic of payrolls and related wage variables is a complex and ever-changing topic. Not many authors in Slovakia pay attention to it, and due to constant changes in the given area, the findings of publications and papers is also limited. Purpose of the article: This paper deals with general theoretical, legal and historical starting points and links between non-taxable parts and the subsistence minimum. The paper presents a cross-section of the history of the application of non-taxable parts in the Slovak Republic. Methods: The method used in the paper is that of hypotheses determination and testing. Findings & Value added: This paper also analyzes the state of national regulation and development trends in the area. In addition to constructive criticism, the article also contains suggestions for improving the current situation.

Ecosystem history of Mississippi River-influenced continental shelf revealed through preserved phytoplankton pigments

2004 ◽  
Vol 49 (7-8) ◽  
pp. 537-547 ◽  
Author(s):  
Nancy N. Rabalais ◽  
Nazan Atilla ◽  
Claire Normandeau ◽  
R. Eugene Turner
Keyword(s):  
Continental Shelf ◽  
Mississippi River ◽  
Phytoplankton Pigments ◽  
History Of

Coring Archaeological Sites

1986 ◽  
Vol 51 (3) ◽  
pp. 505-527 ◽  
Author(s):  
Julie K. Stein
Keyword(s):  
Mississippi River ◽  
River Sediments ◽  
Radiometric Dating ◽  
Archaeological Sites ◽  
New Device ◽  
Culture History ◽  
Lower Mississippi River ◽  
History Of ◽  
River Deposits ◽  
Relationship Of

The history of coring and augering at archaeological sites is traced to two periods in the twentieth century. In the first period, Period I (1935-1955), the technique was used primarily to correlate archaeological deposits with river sediments for dating purposes. Rarely were the deposits containing artifacts cored or augered; rather the stratigraphic relationship of cultural to non-cultural deposits was sought. Most of this work was done in the Lower Mississippi River Delta where geologists had calculated absolute dates for river deposits. This period seems to have ended with the availability of radiometric dating and was followed by Period II (1964-present). After 1964 there is a renewed interest in coring and augering, mostly following a shift in archaeological research interests from culture history toward ecological questions. This shift coincides with the availability of a new device: a mechanical corer. During Period II, coring is utilized in many different projects, including reconstructing the environment surrounding sites, collection of samples from subsurface deposits, and locating buried archaeological sites. Following the discussion of the history of coring and augering, a description of equipment, techniques, and data potential is presented.

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