1,720,975 research outputs found
Plant exploitation in Neolithic Sudan: New insights from the cemeteries R12 and Ghaba in a wider perspective
No full textLittle is known about the introduction of domesticated crops in Sudan. Substantial early evidence of the
cereals wheat and barley has, until recently, been mainly restricted to the post-Neolithic, third millennium
BC pre-Kerma site on Sai Island, and prehistoric finds in general are scarce. Interestingly, an
analysis of phytoliths from plant depositions within burials and phytoliths and starch from dental calculus
from the Nubian Middle Neolithic cemetery R12 and the Early Neolithic cemetery of Ghaba in
Central Sudan has recently set back the date of domesticated cereal introduction in Sudan and Egypt by
500 years to around 7000 years ago.
This paper presents new plant identifications from R12 and Ghaba that confirm the earlier data and
give new information on the use of plants in burial contexts, including indications of processing of
panicoid grasses at Ghaba. In addition, the paper presents an overview of the archaeobotanical data from
Mesolithic and Neolithic Sudan and provides information about grass exploitation of mid-Holocene
Egyptian sites that enables further interpretation of the R12 and Ghaba data. The grave goods from
R12 and Ghaba, supported by comparable finds from other sites, show that the commonly attested mid-
Holocene cemeteries offer a valuable archive that can substantially improve the understanding of the
importance of both wild and domesticated plants in Sudan at the time of Neolithisation. In addition, the
unexpected early presence of the domesticated cereals wheat and barley in Nubia, supported by finds
from later periods, raises the hypothesis that cereal cultivation was practiced in this region from at least
the Middle Neolithic onwards
The best of both worlds: Human impact and plant subsistence at the Middle and Late Neolithic semi-agricultural site of Hekelingen III (2900–2500 BC)
No full textThe identification of non-dietary crop products of Eleusine coracana (L.) Gaertn. ssp. coracana, Pennisetum glaucum (L.) R. Br., and Sorghum bicolor (L.) Moench by phytolith analysis
No full textGrowing habits? Delayed introduction of crop cultivation at marginal Neolithic wetland sites
Get PDFArcheobotan
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
What's in a hearth? Seeds and fruits from the Neolithic fishing and fowling camp at Bergschenhoek, The Netherlands, in a wider context
No full textThis paper presents new results from the Early Neolithic Dutch wetland site of Bergschenhoek (ca. 4200 cal b. c., Swifterbant Culture), which are compared with finds from similar features and sites. The data indicate the presence of predominantly eutrophic, nutrient-rich reed and forb vegetation and suggest the preparation of meals consisting of fish and fruits. The finds from the hearth, dominated by uncarbonised remains of wetland taxa, form a remarkable part of the find assemblage. Therefore, the discussion concerns assemblages, deposition processes and interpretations of uncarbonised and carbonised finds from hearths at comparable, contemporary sites. The wide variation of macroremains assemblages of hearths indicates that plant deposition in hearths is understood only partly and remains a topic for further research.Peer reviewe
- …
