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EN
Ever since the discovery of the Predynastic in 1895 by William Matthew Flinders Petrie and James Edward Quibell, great numbers of copper objects have been discovered (fig. 1). However, the study of these objects has been confined to either typological or metallurgical analyses, with seemingly no credence paid to their symbolic aspects (Anfinset 2010; Hassan et al. 2015; Kmošek et al. 2018; Rademakers et al. 2018; Rehren – Pernicka 2014). By combining archaeological and textual data, it is possible today to partly reconstruct the symbolism behind the use of copper objects in funerary context. The aim of this research is to highlight a phenomenon which took place during the transition between the First and the Second Dynasty: the change of the status of copper artefacts found in the tombs. It is possible to see that the size of the objects, and their functionality, changed greatly during this time. Diverse explanations for the phenomenon will be reviewed and a new explanation will be given thanks to a more detailed study of the artefacts and the general context of that time.
EN
A rich set artefacts made of copper comes from the cemetery of the Jordanów culture discovered at the site No. 10/11/12 in Domasław, Kobierzyce commune. This article presents the results of metallographic research of selected artefacts, which were the grave goods from two male graves No. 12862 and No. 13131. All the analyzed artefacts were made of a raw material containing very large amounts of copper and trace amounts of other elements. The observed differences in the content of arsenic, antimony and bismuth may indicate the use of various sources of raw material or can be related to the copper production process.
EN
Introduction. Skin is the largest organ of the human body. It plays an important role in protection against harmful substances found in the surrounding environment and takes part in the elimination of heavy metals from the body by sweating. The aim of the study was to evaluate the changes in the concentration of lead and copper in the sweat collected on the first and the fourteenth day of endurance training. Materials and methods. The research included 43 patients undergoing a supervised, two-week endurance training on a cycle ergometer and cross-trainer. The lead and copper contents were presented in relation to the sodium content as an indicator of the amount of excreted sweat. Results. The lead concentration in relation to the sodium content in the samples of sweat taken with the use of swabs is statistically significantly higher on day 1 (Me = 1.64-E-4) than the 14th day (Me = 0.37-E-4) p = 0.027. In the sweat samples collected with a plaster, the lead concentration on day 14 of rehabilitation (Me = 0.08-E-4) is statistically significantly lower than before the beginning of the training cycle (Me = 1.19-E-4) p = 0.044. The concentration of copper in sweat samples collected with swabs and patches on day 1 of the rehabilitation cycle does not significantly differ from the content of samples collected on day 14. Conclusions. Endurance training with submaximal heart rate results in reduced excretion of lead in the sweat and does not significantly affect the level of copper. Further research into the impact of physical effort on the excretion of metals from the body can help explain the results13
EN
The article documents and discusses field conservation methods and procedures applied to metal artifacts, both copper and iron, discovered by the Polish team working at the Saruq al-Hadid archaeological site in the UAE (Emirate of Dubai) in 2016/2017 and 2017/2018. An overview is given of the conservation challenges that the state of preservation of the metal finds presented and the methods and procedures that were applied on the site, including brief case studies of the most important finds and treatments.
EN
The article documents and discusses metal artifacts discovered in tombs explored by a joint Polish–Sudanese project from the PCMA UW and the NCAM in the tumuli field at Tanqasi in Sudan (Fourth Nile Cataract region). Metal finds from the first season in 2018 were in various states of preservation, allowing however the identification and interpretation of most of the objects through a thorough analysis that involves also metallographic studies and complex conservation. The results contribute to how the site is perceived from a social and cultural point of view.
EN
In the whole world, researches are conducting on toxic effect of heavy metals on living organisms. The problem with heavy metal occurrence in the environment is not only associated with their toxicity, but also with their ability to accumulate inside living organisms. This study presents the effect of copper and vanadium ions on germination and growth of carrot (Daucus carota L subsp. sativus (Hoffm.) Schübl. & G. Martens.) and winter wheat (Triticum aestivum L.). The experiment was carried out in two independent series with ten repetitions each. The water solutions of copper (CuSO4) and vanadium (H4NO3V) salts with the concentrations: 0.6 mM, 0.3 mM, 3 mM and 6 mM were used. The control groups were objects watered with distilled water. The conducted experiment showed that, the copper and vanadium ions had negative effect on germination and growth of plants. With the increasing of concentration of heavy metal ions an inhibition of seeds germination capacity was observed. The length of D. carota and T. aestivum seedlings in each salt solutions was inhibited, compared to the control group. During the growth phase, the stimulation of wheat leaves growth, only on copper solutions with concentration 3 mM and 6 mM was observed. Changes of a fresh and dry weight, and a water content were observed, depending on the copper and vanadium ions concentration.
EN
The aim of this study was to investigate the influence of copper and vanadium ions on photosynthetic activity of carrot (Daucus carota L. subsp. sativus (Hoffm.) Schübl. & G. Martens) and winter wheat (Triticum aestivum L.). Measurements of the total chlorophyll content were performed – the SPAD chlorometer and the basic chlorophyll a fluorescence parameters were determined using the FMS-1 fluorometer – Hansatech. The studies used aqueous solutions of copper salt (CuSO4) and vanadium (H4NO3V), with molar concentrations: 0.6 mM, and 3 mM. The control group consisted of plants watered with distilled water. Both in carrots and in wheat, together with an increase in the concentration of heavy metal ions, a decrease in the content of chlorophyll was observed and significant changes in the activity of the photosystem were demonstrated II. Measurements of chlorophyll fluorescence kinetics and only in D. carota subsp. sativus showed a statistically significant effect of 3 mM solutions of copper and vanadium ions on photosynthetic activity. In T. aestivum none of the heavy metal ions induced significant changes in the values of chlorophyll a fluorescence.
EN
The tax on the extraction of certain minerals was introduced into the Polish law by the Law of March 2, 2012 which entered into force on April 18 the same year. The purpose of the Act was to ensure the profits of the state budget from entities extracting copper and silver. Since its introduction, the tax on the extraction of certain minerals raised many doubts among both practitioners and theorists. This article aims to outline the major controversy concerning those tax rates: 1) compliance method of determining tax rates with the constitutional principle of exclusivity Act in the area of tax law, 2) the asymmetry of tax rates, 3) no mechanism to support new investments.
PL
Podatek od wydobycia niektórych kopalin został wprowadzony do polskiego porządku prawnego ustawą z dnia 2 marca 2012 r., która weszła w życie 18 kwietnia tego samego roku. Założeniem projektodawcy ustawy było uchwycenie nadzwyczajnych zysków podmiotów wydobywających miedź i srebro. Od momentu wprowadzenia podatek od wydobycia niektórych kopalin budził liczne wątpliwości zarówno wśród praktyków, jak i teoretyków. Celem artykułu było zarysowanie najważniejszych kontrowersji dotyczących stawek podatku od wydobycia niektórych kopalin, w tym: 1) zgodności sposobu określania stawek podatku z konstytucyjną zasadą wyłączności ustawy w sferze prawa podatkowego, 2) asymetryczności stawek podatku, 3) braku mechanizmu wspierania nowych inwestycji.
EN
During the autumn of 2014, the Czech Institute of Egyptology continued its archaeological research of the southern part of the Abusir royal pyramid necropolis. In Nakhtsare’s cemetery, tomb AC 30 was unearthed, which appeared to belong to a hitherto unknown queen, Khentkaus III. Much damaged by stone robbers, the tomb consists of a north-south mastaba, 16.12 × 10.70 m large THE MASTABA OF QUEEN KHENTKAU S I I I ( AC 30) PES XV/2015 41 with a rather simple layout, including an L-shaped chapel in the superstructure and a vertical shaft and a burial chamber in the substructure. In the tomb’s substructure part of the burial equipment was found (travertine model vessels, copper models of tools or fragments of wooden objects) as well as fragments of a mummified female skeleton, which might have belonged to the tomb owner. The identification of the previously unknown “wife of the king” and “mother of the king”, Khentkaus III, as the tomb owner was made thanks to the numerous masons’ inscriptions documented on the tomb masonry in the subterranean part of the tomb. This discovery opens new avenues into the investigation of the situation in the royal family at the beginning of the second half of the Fifth Dynasty. The analysis of the pottery used in the fill of the mastaba’s core masonry is methodologically very important as it has been used as the major dating criterion post quem.
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EN
The study deals with the development of the economic relations between Prague and Nuremberg in the first half of the 16th century analysed in the light of the legal documents which affected the bilateral trade (privileges, the Prague–Nuremberg treaty, hosting rights). At the same time, it provides information on the major buyers and on the networks of their customersupplier relations, the assortment of goods and the specific trade practices (factoring, consignment sales, loans).
EN
On 31 May 1741 Zofia Grothówna, the abbess of the convent in  Imbramowice, died. She was chosen for this function on 4 August 1703, and remained in office for 38 years. Zofia Grothówna contributed- along with the Bishop of Cracow, Kazimierz Łubieński and the Commissioner of the convent, canon Dominik Lochman- to rebuilding the convent after the great fire, which took place in 1710. Thanks to her efforts, the convent and the church were equipped with the necessary movables, including liturgical equipment. The chronicle of the convent, which was begun during her life, contains the information on how to acquire individual paraments and sacred vessels. Shortly after the death of abbess Grothówna, the registry was made. It was entitled The described registry of all the equipment, silver, relics, which are located at the Church in Imbramowice after the death of the late Mother, our Benefactress, Zofia Grothówna, the abbess of Imbramowice, 26 June, 1741. Comparing it to the notes in the chronicles, we have a full picture of movables in the church. Over time, new objects, acquired between 1744 and 1752, were added to it.
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