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  • Author or Editor: L. Horváth x
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Finds and chronology of a middle Copper Age settlement in Budapest, 3 rd district . In the spring of 2002, rescue excavations were conducted in Kiscelli Street, Budapest for about one and a half months preceding the construction of a residential block. Finds and features of the middle Copper Age were found under a thick Roman period layer. The time was not enough to reach the subsoil on the entire territory, so not all the prehistoric features could be uncovered. Twelve pits and a small oven were unearthed from the middle Copper Age. The number of finds was uneven in them. An important result was that we could observe the traces of metallurgy: the fragment of a casting pot and copper drops, which imply local copper production. The analysis of the ceramic material led to the conclusion that this site represents a yet unregistered although, according to former finds, already existing phase of the Hungarian middle Copper Age, which lends a special importance to this site. This study is dedicated to Erzsébet Ruttkay, an eminent researcher of the period, who died last year.

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Abstract  

If we arbitrarily choose finitely many measure spaces, then the existence of a product of these measure spaces can be proved. It is well known that this operation is not associative which is a substantial difficulty. In this paper we show that the associative law remains true between the σ-algebras of the product spaces, and we give an extension of the Fubini's theorem.

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Researchers of the MÉTA program have a strong demand to perform flexible and effective queries for further analyses of the database. Structured query language was applied and a web-based application was developed to facilitate understanding of database structure and content in detail, to help develop, store and annotate of SQL query statements, to help reuse of them, to facilitate save and download resulted data sets to the authorised users through the internet. A brief description of the MÉTA SQL Expert Interface and Access Service is given here, and several commented query examples demonstrate the easy and effective usage of the service.

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The hydrated rare earth orthophosphates LnPO4 ·xH2O (Ln=La-Dy) contain zeolitic water in the structural channels, which is released reversibly up to 300°. The thermal stabilities of the hydrates depend upon the nature of the Ln atom. The dehydration temperature decreases with decreasing ionic radiusr of Ln3+, according to the general equationθ=(r−a)/b (whereθ is the DSC and/or DTG dehydration peak temperature, anda andb are empirical constants depending on the experimental conditions).

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We prove central limit theorems and related asymptotic results for where W is a Wiener process and Sk are partial sums of i.i.d. random variables with mean 0 and variance 1. The integrability and smoothness conditions made on f are optimal in a number of important cases.

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Radiometric titrations are reported based on the formation of poorly soluble chelate complexes of 8-hydroxyquinoline and its derivatives with calcium ions. Calcium chloride reagent solution labelled with45Ca was used for the titrations. The slightly alkaline medium used in the titrations made complete the solution of the substances and the formation of chelate complexes. The appropriate conditions of the titrations of the various compounds have been determined. The radiometric titrations were carried out in an apparatus suitable for the detection of soft β-emitting isotopes.

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Formation of oxidizing and reducing radicals has been studied by pulse radiolysis of [Fe(CN)6]4––BrO 3 –CN system in ethylene glycol — water solvent mixture. Oxidizing ·BrO2 and BrO radicals formed by electron scavenging with ·BrO 3 were identified and their reactions were investigated. The reaction of hydroxyl radicals with ethylene glycol leads to formation of reactive radicals with reducing properties and of compounds which reduce slowly in dark the ferricyanide formed in the reaction of ·BrO2 radical with ferrocyanide.

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Zs. Visy: A ripa Pannonica Magyarországon [Die ripa Pannonica in Ungarn]. Akadémiai Kiadó, Budapest 2000, 144 S., 180 Abb., 28 Karten; A. Pasquier (ed.): Olympie.Cycle de huit conférences or ganisé au Musée du Louvre par le Service Culturel du 18 janvier au 15 mars 1999, Paris. La documentation Française. Paris 2001, 282 s;

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