The objective of this study was to determine the prevalence of complaints of musculoskeletal pain in workers following the metallurgical establishing a relationship with the sociodemographic profile and perception of professionals about the cause of symptoms. A descriptive cross-sectional study was conducted in the following metallurgical enterprises in the city of Curitiba, Brazil. The sample ...

tepe sagzabad, a site situated on the qazvin plain of north-central iran, was excavated from 1970 to 1998 by the institute ofarchaeology of tehran university. recent excavations by h. tala’i (1997-1999) yielded some metal artifacts dating to theearly iron age. ten of these copper-based samples were investigated using inductively coupled plasma optical emissionspectroscopy (icp-oes), scanning el...

In metallurgical enterprises, in some plants and factories, technological processes, pouring of various types liquids (cast iron, steel, gold, silver, chocolate, etc.) from large containers geometric shapes into smaller standard forms by the method turning container relative to a fixed point or axis over edge It is important that flow liquid uniform, which reality not true even at constant angu...

T. Sadilek, University of Economics, Faculty of International Relations, Prague, Czech Republic The aim of the article is to present the regional distribution of the metallurgical industry in the Czech Republic and to describe the specific factors which determine the localization of the industry in Czech regions. In order to achieve that goal, traditional tools of regional analysis are used, su...

The influence of strain rate on the mechanical response two different nanostructured pure coppers was investigated under uniaxial compression. first copper elaborated by powder metallurgy using Spark Plasma Sintering (SPS) process. second Severe Plastic Deformation (SPD). Conventional characterizations were conducted with quasi-static compression and tensile tests, hardness tests and, microstru...

Fire investigators have attempted to study fire behaviors through microstructural examination of molten marks on copper wire. However, there not been many studies the metallurgical real-world cases. This research examined surface morphology and microstructure in longitudinal section wire from various scenes explain how they formed identify surrounding materials. The results show that foreign el...

RNA polymerase II (RNAPII) transcription has been proposed to occur at transcription factories; nuclear focal accumulations of the active, phosphorylated forms of RNAPII. The low ratio of transcription factories to active genes and transcription units suggests that genes must share factories. Our previous analyses using light microscopy have indicated that multiple genes could share the same fa...

The Balkan Peninsula played a crucial role for the introduction of metallurgy during Copper Age and numerous archaeometallurgical examinations have delivered highly interesting insights on this topic. However, there is lack systematic analytical research copper ore smelting metal exchange later Bronze Age. In paper we focus first results slags from sites Ružana, Trnjane Čoka Njica, Eastern Serb...

Economic historians tend to explain the rise of the cooperative form in agriculture from the advantage of cooperative over private factories in reducing transaction costs with suppliers. This study provides a first test of this thesis using data on 1130 dairy factories in The Netherlands. Indeed, we find that cooperative factories performed significantly better than private factories. The persi...