ON THE SPATIAL RELATIONSHIP OF THE MONUMENTS OF THE STONE AGE WITH SOURCES OF MINERAL RAW MATERIALS IN TRANSBAIKALIA

2018 ◽  
Vol 24 (10) ◽  
pp. 49-58
Author(s):  
G. Yurgenson ◽  
◽  
P. Moroz ◽  
Author(s):  
Yu. B. Serikov ◽  

Hoards are a rare and informative type of archaeological sources. Different definitions of hoards are given in dictionaries and in special literature: “hoards-treasures”, “hoards of the caster”, “trading hoards”, “household hoards”, “cult hoards”, “sacrificial hoards”, “votive hoards”, “ceremonial-votive hoards”, “hoards-offerings”, “production hoards”, “hoards of raw materials”, “hoards of the master”, “hoards-satchel sets”, etc. Hoards are often found by accident and usually not by archaeologists. At the same time, the hoard is not always passed to specialists in full. A finder of the hoard can remove one or more items from it or, on the contrary, add items lying nearby to the hoard. All these factors reduce the degree of information content of hoards found by random people. The location of the hoard in relation to the relief and borders of the archaeological site is not always fixed. Also, the mineral raw materials of products from the hoard are not always described. Some researchers do not provide images of all the finds from the hoard in their publications and do not indicate the metric indicators of the items in the hoard. Quite often, any accumulation of finds on the site is considered as a hoard without additional arguments. But the accumulation of objects in the cultural layer of sites may be not a hoard, but a production set at a home workshop. It is proposed to refer to the actual hoards, first of all, the hoards found outside the cultural layer of settlements (sites). Hoards are also tightly packed products, which indicates that they were in some kind of container. Accumulations of products buried in a hole and covered with a stone or slab can also be called hoards. In other cases of the accumulation of items interpreted by the author as a hoard, the word “hoard” must be taken in quotation marks. Failure to comply with special requirements for the study and publication of hoards reduces the information capacity of hoards as archaeological sources.


2021 ◽  
Vol 882 (1) ◽  
pp. 012042
Author(s):  
Benny Anggara ◽  
Irfan Marwanza ◽  
Masagus Ahmad Azizi ◽  
Wiwik Dahani ◽  
Subandrio

Abstract Abstract. The nickel commodity is getting popular due to its role as one of the raw materials for battery manufacture. It is estimated that this trend will continue for the next 2 - 3 years and reaching its peak when the factories that process the raw material for electric vehicle batteries are established. For this reason, the nickel mining companies are competing to explore new nickel deposits. The research location is a nickel mine in Sulawesi. The purpose of this study was to determine the most suitable Nickel variogram model based on root means square error (RMSE). To obtain an accurate number of resources, it is necessary to apply an accurate and validated estimation method to gain data that are in line with the actual conditions. Therefore, this study uses a geostatistical method that takes into account the spatial relationship of each data using a variogram which is validated by the cross-validation method and RMSE. From the results of the RSME analysis, the most suitable variogram model for nickel content in the limonite and saprolite layers is the exponential variogram model. In addition, the values of root mean square error for nickel content in the limonite and saprolite layers were 0.022 and 0.098 respectively.


Author(s):  
Ruth V.W. Dimlich

Mast cells in the dura mater of the rat may play a role in cerebral pathologies including neurogenic inflammation (vasodilation; plasma extravasation) and headache pain . As has been suggested for other tissues, dural mast cells may exhibit a close spatial relationship to nerves. There has been no detailed ultrastructural description of mast cells in this tissue; therefore, the goals of this study were to provide this analysis and to determine the spatial relationship of mast cells to nerves and other components of the dura mater in the rat.Four adult anesthetized male Wistar rats (290-400 g) were fixed by perfusion through the heart with 2% glutaraldehyde and 2.8% paraformaldehyde in a potassium phosphate buffer (pH 7.4) for 30 min. The head of each rat was removed and stored in fixative for a minimum of 24 h at which time the dural coverings were removed and dissected into samples that included the middle meningeal vasculature. Samples were routinely processed and flat embedded in LX 112. Thick (1 um) sections from a minimum of 3 blocks per rat were stained with toluidine blue (0.5% aqueous).


2021 ◽  
Vol 10 (7) ◽  
pp. 432
Author(s):  
Nicolai Moos ◽  
Carsten Juergens ◽  
Andreas P. Redecker

This paper describes a methodological approach that is able to analyse socio-demographic and -economic data in large-scale spatial detail. Based on the two variables, population density and annual income, one investigates the spatial relationship of these variables to identify locations of imbalance or disparities assisted by bivariate choropleth maps. The aim is to gain a deeper insight into spatial components of socioeconomic nexuses, such as the relationships between the two variables, especially for high-resolution spatial units. The used methodology is able to assist political decision-making, target group advertising in the field of geo-marketing and for the site searches of new shop locations, as well as further socioeconomic research and urban planning. The developed methodology was tested in a national case study in Germany and is easily transferrable to other countries with comparable datasets. The analysis was carried out utilising data about population density and average annual income linked to spatially referenced polygons of postal codes. These were disaggregated initially via a readapted three-class dasymetric mapping approach and allocated to large-scale city block polygons. Univariate and bivariate choropleth maps generated from the resulting datasets were then used to identify and compare spatial economic disparities for a study area in North Rhine-Westphalia (NRW), Germany. Subsequently, based on these variables, a multivariate clustering approach was conducted for a demonstration area in Dortmund. In the result, it was obvious that the spatially disaggregated data allow more detailed insight into spatial patterns of socioeconomic attributes than the coarser data related to postal code polygons.


2012 ◽  
Vol 67 (10) ◽  
pp. 823-829 ◽  
Author(s):  
Yu. S. Sukach ◽  
E. N. Savinova ◽  
G. M. Kolesov ◽  
D. A. Tyurin

Neurosurgery ◽  
1988 ◽  
Vol 23 (6) ◽  
pp. 770-773 ◽  
Author(s):  
Masahiko Udzura ◽  
Hiroo Kobayashi ◽  
Yoshio Taguchi ◽  
Hiroaki Sekino

Abstract A 54-year-old man with a right hemiparesis was found to have an intrasellar intercarotid communicating artery associated with agenesis of the right internal carotid artery. Magnetic resonance imaging (MRI) studies demonstrated the spatial relationship of the anomalous artery to the surrounding structures, thus suggesting an embryonic enlargement of the capsular artery as a source of this anomalous artery.


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