Archaeological and experimental studies of splintered pieces in the Central Asian Upper Paleolithic

2021 ◽  
Vol 13 (2) ◽  
Author(s):  
K. A. Kolobova ◽  
V. M. Kharevich ◽  
A. V. Kharevich ◽  
A. Yu. Fedorchenko ◽  
E. N. Bocharova ◽  
...  
2019 ◽  
Vol 10 (2) ◽  
pp. 26-35
Author(s):  
R. A Mangushev ◽  
R. A Usmanov

The article presents the results of studies relating to compaction of weak water-saturated forest soils and vertical sandy drains under static and seismic effects in the conditions of the Central Asian region. Considering the absence of any experimental and theoretical studies of the application of this parameter, field (in-situ) experimental studies were carried out to identify the possibilities and effectiveness of its use in conditions of weak water-rich loess soils of the Republic of Tajikistan. The article discusses changes in the basic physical and mechanical characteristics of soils and experimental structures. At the experimental site, three plots with a size of 10·10 m were prepared, where the plot was loaded without the installation of vertical sand drains; 3·3 m to a depth of 6.0 m. Static loading of experimental plots by a derivative by layer-by-layer dumping of ground material with measurement of total and layer-by-layer deformations of the packed thickness. Imitation of seismic impact with an intensity of 8 points was carried out using short-delayed explosions of explosive charges. Studies have shown the effectiveness of the use of vertical sandy drains for compaction of weak water-saturated loess soils. Recommendations are given on the use of explosion energy to improve the quality of soil compaction.


2019 ◽  
Vol 47 (3) ◽  
pp. 12-26 ◽  
Author(s):  
V. I. Molodin ◽  
J.-M. Geneste ◽  
L. V. Zotkina ◽  
D. V. Cheremisin ◽  
C. Cretin

On the basis of petroglyphic sites Kalgutinsky Rudnik (Kalgutinsky mine) on the Ukok Plateau, Baga-Oigur and Tsagaan-Salaa in northwestern Mongolia, a distinct “Kalgutinsky” style of rock art of the Russian and Mongolian Altai is described. The distance between these sites is about 20 km. This group is marked by very specifi c stylistic features, common technological properties, a narrowly defi ned motif, featuring only animals, and a very intense desert varnish. All these features and the proximity of the sites suggest that they should be regarded as a special group, which we term the “Kalgutinsky” style and date to the Upper Paleolithic on the basis of several criteria. Images of mammoths at Baga-Oigur and Tsagaan-Salaa are similar to those known in the classic Upper Paleolithic cave art of Western Europe. An entire set of stylistic features typical of the “Kalgutinsky” canon is seen also in the representations of mammoths, and this manner is consonant with that of European Upper Paleolithic rock art. Our fi ndings suggest that a peculiar “Kalgutinsky” style existed and, moreover, that it represented a separate Central Asian locus of Upper Paleolithic rock art.


2021 ◽  
Vol 20 (5) ◽  
pp. 55-68
Author(s):  
Alena V. Kharevich ◽  
Vladimir M. Kharevich ◽  
Alexander Yu. Fedorchenko ◽  
Ksenia A. Kolobova

Purpose. The subject of the article are splintered pieces and their variability from the Upper Paleolithic assemblies from Central Asia, which have not yet undergone special study. The authors employed an experimental approach to verify data obtained through the analysis of archaeological splintered pieces and to explore modification patterns of these tools. Results. Experiments included splitting various soft organic materials with splintered pieces, including red deer antler, wood, and bone. The experimental use of splintered pieces allowed to draw the following conclusions. The edge characteristic to splintered pieces was shaped by contact with hammers, but not with the soft material to be processed. Double-edged splintered pieces were produced when the tool was rotated and a new stage of use was performed. The morphology of splintered pieces varies depending on the intensity of their use. Conclusion. In the case of Central Asian splintered pieces (Tien-Shan and Siberia), the authors believe that only tools are being researched, not cores for the following reasons: 1. very small size of most double- edged splintered pieces, not allowing them to be considered as cores; 2. metric parameters of the splintered pieces are stacked in one reduction model, which is not typical for cores; 3. there is one bladelet core in Kulbulak’s assemblage, which was later used as a splintered piece; 4. morphometric characteristics of experimental tools used for processing of soft organic materials (wood, bone, horn) are almost identical to archaeological ones; 5. use-wear analysis demonstrated the use of all archaeological pièces esquillées as tools for processing hard organic materials; 6. there are other types of cores in the assemblages, which allow for the serial production of small blanks corresponding to those used for the manufacture of tools; 7. there is no shortage of raw materials that could explain the need to use such a miniature core.


Author(s):  
Kent McDonald ◽  
David Mastronarde ◽  
Rubai Ding ◽  
Eileen O'Toole ◽  
J. Richard McIntosh

Mammalian spindles are generally large and may contain over a thousand microtubules (MTs). For this reason they are difficult to reconstruct in three dimensions and many researchers have chosen to study the smaller and simpler spindles of lower eukaryotes. Nevertheless, the mammalian spindle is used for many experimental studies and it would be useful to know its detailed structure.We have been using serial cross sections and computer reconstruction methods to analyze MT distributions in mitotic spindles of PtK cells, a mammalian tissue culture line. Images from EM negatives are digtized on a light box by a Dage MTI video camera containing a black and white Saticon tube. The signal is digitized by a Parallax 1280 graphics device in a MicroVax III computer. Microtubules are digitized at a magnification such that each is 10-12 pixels in diameter.


Author(s):  
Ina Grau ◽  
Jörg Doll

Abstract. Employing one correlational and two experimental studies, this paper examines the influence of attachment styles (secure, anxious, avoidant) on a person’s experience of equity in intimate relationships. While one experimental study employed a priming technique to stimulate the different attachment styles, the other involved vignettes describing fictitious characters with typical attachment styles. As the specific hypotheses about the single equity components have been developed on the basis of the attachment theory, the equity ratio itself and the four equity components (own outcome, own input, partner’s outcome, partner’s input) are analyzed as dependent variables. While partners with a secure attachment style tend to describe their relationship as equitable (i.e., they give and take extensively), partners who feel anxious about their relationship generally see themselves as being in an inequitable, disadvantaged position (i.e., they receive little from their partner). The hypothesis that avoidant partners would feel advantaged as they were less committed was only supported by the correlational study. Against expectations, the results of both experiments indicate that avoidant partners generally see themselves (or see avoidant vignettes) as being treated equitably, but that there is less emotional exchange than is the case with secure partners. Avoidant partners give and take less than secure ones.


Author(s):  
Anne Andronikof

Based on an analysis of John Exner’s peer-reviewed published work from 1959 to 2007, plus a brief comment for an editorial in Rorschachiana, the author draws a comprehensive picture of the scientific work of this outstanding personality. The article is divided into three sections: (1) the experimental studies on the Rorschach, (2) the clinical studies using the Rorschach, and (3) Exner’s “testament,” which we draw from the last paper he saw published before his death (Exner, 2001/2002). The experimental studies were aimed at better understanding the nature of the test, in particular the respective roles of perception and projection in the response process. These fundamental studies led to a deeper understanding of the complex mechanisms involved in the Rorschach responses and introduced some hypotheses about the intentions of the author of the test. The latter were subsequently confirmed by the preparatory sketches and documents of Hermann Rorschach, which today can be seen at the H. Rorschach Archives and Museum in Bern (Switzerland). Exner’s research has evidenced the notion that the Rorschach is a perceptive-cognitive-projective test.


2013 ◽  
Vol 44 (2) ◽  
pp. 117-128 ◽  
Author(s):  
Mauro Bertolotti ◽  
Patrizia Catellani ◽  
Karen M. Douglas ◽  
Robbie M. Sutton

In two experimental studies (conducted in Britain and Italy), participants read about a politician answering to leadership- versus morality-related allegations using either downward counterfactuals (“things could have been worse, if ...”) or upward counterfactuals (“things could have been better, if ...”). Downward messages increased the perception of the politician’s leadership, while both downward and upward messages increased morality perception. Political sophistication moderated the effect of message direction, with downward messages increasing perceived morality in low sophisticates and upward messages increasing perceived morality in high sophisticates. In the latter group, the acknowledgment of an intent to take responsibility mediated morality judgment. Results were consistent across different countries, highlighting previously unexplored effects of communication on the perception of the “Big Two” dimensions.


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