To the specifics of the settlement development during the Roman Period in the region north to the Middle Danube

The study examines changes of the settlement pattern during the first four centuries A. D. Interpreting the discontinuity of the sites as an archaeological reflection of their succesive extinction attemts to place it in the wider context of historical events from the Marcomannics wars in 2. century A. D. to the beginning of the Migrations Period at the end of 4. century

Die Verbündeten Roms nördlich des pannonischen Limes und ihre Nobilität während der Spätantike

Tejral Jaroslav. Die Verbündeten Roms nördlich des pannonischen Limes und ihre Nobilität während der Spätantike . In: La noblesse romaine et les chefs Barbares du IIIe au VIIe siècle. Actes du Colloque International organisé par le Musée des Antiquités Nationales et l'URA 880 du CNRS (Saint-Germain-en-Laye, 16-19 mai 1992) Chelles : Association française d'archéologie mérovingienne, 1995. pp. 139-154. (Mémoires de l'Association française d'archéologie mérovingienne

Die Kriegergräber mit Schwertern des sog. Asiatischen Typs im Mitteldonauraum unter Berücksichtung des Neufundes von Horákov (Mähren, CZ)

The occurrence of foreign, more precisely eastern, cultural elements among local archaeological finds is commonly regarded as a characteristic feature of the cultural-historical development during the Early Migration Period inCentral Europe. Such interpretations,which generatemany questions and are sometimes accepted with scepticism, have gained some ground, but most of them indisputably demand verification and less strictly defined views. These foreign cultural elements usually represent objects, whose symbolic values made them, part of the new funerary customs connected with changes of social structures during the historical development of barbarian peoples on the Danube. The main attention in this regard is paid to a well-distinguished group of weapon graves, which contained both the so-called eastern weapon types and, on the other hand, clear acculturation traits. Within the group of eastern weapons, which influenced the armament ofDanubianwarriors, encompassed also various types of double-edged long swords – spathae. A conspicuous type is represented by long swords with relatively narrow blade and a massive iron cross guard, so-called swords of Asian type, which occupy a special position in the Danube region

Les fédérés de l’Empire et la formation des royaumes barbares dans la région du Danube moyen à la lumière des données archéologiques

Tejral Jaroslav, Soupault Vanessa. Les fédérés de l’Empire et la formation des royaumes barbares dans la région du Danube moyen à la lumière des données archéologiques. In: Des royaumes barbares au Regnum Francorum. L’Occident à l’époque de Childéric et de Clovis (vers 450-vers 530). Actes des XVIIIe Journées internationales d’Archéologie mérovingienne Saint-Germain-en-Laye — Musée des Antiquités Nationales. 23-24 avril 1997. Chelles : Association française d'archéologie mérovingienne, 1997. pp. 137-166. (Mémoires de l'Association française d'archéologie mérovingienne

Health Risk of Occupational Exposure in Welding Processes I. Genotoxic Risk

The welding processes belong among the important sources of occupational pollutions. The welding fumes are ranked, according to the classification of IARC (International Agency for Research on Cancer), into the group of 2B. In our study we have performed the investigation of twenty men (exposed group) working in the stainless steel welding industrial processes (11 welders and 9 grinders, average age was 31 years, 55 % of smokers, average time period of welding occupational exposure was 8 years). The concentrations of chromium (0.557–16.343 mg/m3) and nickel (0.340–10.129 mg/m3) in occupational atmosphere highly exceeded established values of maximum permitted concentrations (0.1 and 1.0 mg/m3, respectively). The concentrations of manganese did not exceed its permitted values. Total concentrations of 12 polycyclic aromatic hydrocarbons (PAH) in occupational atmosphere varied from 300.9 to 961.2 ng/m3. For purposes of biological monitoring, the levels of chromosomal aberrations were determined in the exposed and control group. Healthy blood donors servedas a control group. People from that group were not occupationally exposed to harmful chemical compounds (20 men, average age was 36 years, 40 % of smokers). Increased level of chromosomal aberrations of exposed group brought the evidence about higher genotoxic risk of investigated welding processes

Health Risk of Occupational Exposure in Welding Processes II. Immunological Effects

Many of epidemiological studies have certified the relationship between welding and various forms of health damages. In our study we performed an immunological research within a group of twenty men, working in the risky environment of manufacturing of stainless steel constructions (11 welders and 9 grinders, average age was 31 years, 55 % of smokers, average time period in welding occupational exposure was 8 years). The exposed group of men was compared with a group of healthy blood donors, marked as the control group (people with various types of employment, living in same locality as a people from exposed group). People within the control group were not occupationally exposed to harmful chemical compounds (from 30 to 100 men were chosen for the individual immune parameters, average age of the whole group was 38 years, 40 % of smokers). When compared with the control group, the exposed group of welders and grinders showed higher level of C3 complement (p<0.001), orosomucoid (p<0.05), beta-2–microglobulin (p<0.001), neopterin (p<0.001) and all fagocytic cells (p<0.001). On the contrary, in the group of exposed people decreased values of IgA (p<0.001), IgG (p<0.001), IgM (p<0.001), transferin (p<0.001), alpha-1–antitrypsin (p<0.001), alpha-2–macroglobulin (p<0.001), haptoglobulin (p<0.001) and ceruloplasmin (p<0.05) were found. Some of these changes were characteristic for the exposed group. They could be considered as precursors of biological markers of effect for given type of exposure

Lack of renal changes in stainless steel welders exposed to chromium and nickel

Biochemical markers of kidney damage were examined in 52 male stainless steel welders (manual metal arc welding) exposed to chromium and nickel. No difference was found in the mean urinary excretion of total proteins, albumin, protein 1, transferrin, retinol-binding protein, lactate dehydrogenase, lysozyme, or beta-N-acetylglucosaminidase in a comparison with matched referents. Beta-2-microglobulin was slightly increased in those welders with a urinary chromium concentration of > 64.5 nmol . mmol-1 creatinine. The prevalences of abnormal values did not differ from those observed in the reference group. No correlation was found between the concentrations of chromium or nickel in urine and that of proteins or enzymes. No consistent or clinically significant renal impairment was revealed among the stainless steel welders exposed to a chromium air concentration slightly above the current threshold limit value of the American Conference of Governmental Industrial Hygienists for water-soluble hexavalent chromium compounds (50-mu-g . m-3)