Taxonomic significance of short forms of middle Permian Pseudoalbaillella Holdsworth and Jones, 1980 (Follicucullidae,Radiolaria)

Middle Permian Pseudoalbaillella from the Xiaodong area in South China were studied using fossil morphology. Short forms of Pseudoalbaillella fusiformis (Holdsworth and Jones), Pseudoalbaillella internata Wang, and Pseudoalbaillella monacantha (Ishiga and Imoto), characterized by a short and skirt-like pseudoabdomen, were confirmed. We conclude that the short forms were derived from their respective species by breaking off during disruptive processes. If this is true, there may be structurally weakened parts in the pseudoabdomen.     

Diploma Training for Technologists in Tissue Banking

There is a great demand for a formal training programme for tissue bank technologists not only for the Asia Pacific Region but also for technologists in other regions including Latin America and Africa. To meet this need, National University Hospital (NUH) Tissue Bank was established as the International Atomic Energy Agency (IAEA)/National University of Singapore (NUS) Regional Training Centre for training tissue bank operators in the Asia Pacific Region (Regional co-operative Agreement, RCA) in November 1997. The training centre conducts a one-year distance learning Diploma in Tissue Banking offered by the NUS. The syllabus for the Diploma Course included the multi-media IAEA curriculum on tissue banking. The first Diploma Course has been successfully completed in October 1998. Twelve students convocated, 4 with Distinction, 5 with Credit and 3 with Pass. Sixteen candidates from the Asia Pacific Region registered for the Second Diploma Course in April 1999. This second batch will be due to sit for their Diploma Examination in April 2000. With the increasing popularity of this Diploma Course, the third batch of students which will be registered in April 2000, will include technologists not only from Asia Pacific Region but also from other regions including Africa.     

MAMMIFRES DE SANSAN,coordinated by Stéphane Peigné and Sevket Sen, 2012. Mémoires du Muséum National d'Histoire naturelle,Publication Scientifi que 203, 709 pages,ISBN 978-2-85653-681-0.Mammifères de Sansan,key volume on a historical locality

正The Muséum National d’Histoire naturelle,via the able hands of Stéphane Peignéand Sevket Sen,has produced a massive scientific work that compiles advanced studies on the diverse mammalian fossil assemblage of Sansan,Gers,southwestern France.Servais et al.(2012)called Sansan a"lagersttte",and so it is:a remarkable fossil site that assembles much of the biota of its past community in one place.Sansan is a site complex with adjacent     

Metabolism of cholesterol in normal hamster fibroblasts and those transformed by the SV 40 virus. Effect of low density lipoproteins

The amount of cholesterol and the percentage of esterified cholesterol were increased in transformed cells. The cholesterol synthesis from [14C] sodium acetate was reduced and cholesteryl oleate uptake increased by 3 fold in transformed cells. The activity of acyl coenzyme A-cholesterol-acyltransferase, measured in situ was also increased in transformed cells. Studies with 125I-LDL pointed out an increase of binding, and especially of internalization of LDL by transformed cells. Finally, long term culture in a lipoprotein-deficient medium showed that transformed cells exhibited a higher ability (tested by growth rate and cholesterol synthesis) to adapt themselves to lipid depletion.     

Early human dispersal at the western edge of the Eastern European plain: Data from Ukraine

The current state of research on Lower Palaeolithic sites in Ukraine within its 1991 borders is the focus of this paper. Over the last 10–15 years, many new sites have been discovered in different parts of the eastern European area of the country, reassessed some old materials. In the central European region of the country, in the Ukrainian Transcarpathia, important new stratified Lower Palaeolithic sites have also been found. The current Ukrainian Lower Palaeolithic records demonstrate hominin presence in mountainous areas (Carpathians, Crimea) and the valleys of all major rivers, namely the Dniester, Southern Buh, Dnieper and Severskiy Donets. The article presents a brief review of the main currently known Lower Palaeolithic assemblages. Available geological, geomorphological, biostratigraphical data and ESR dates allow defining their age between 1.2 and 0.4 Myг; sites correlate with few warm phases between MIS 35 and MIS 11. Earlier sites, very tentatively dated at around 2 Myг, gravitate towards the seashore and mountainous areas. Later sites witness steady, though not continuous, colonisation of East European plain fringe areas. The main regularities of geographical setting, chronology, morphological and technological characteristics of assemblages of the Lower Palaeolithic sites of the Western segment of the East European plain are characterised. Typologically, industries are mainly characterised as belonging to Mode I. Core-and-flake industries survives to the Holsteinian. Essential difficulties in lithic raw materials supply could probably be a reason for the rise of a peculiar pattern of technological behaviour that involved mainly bipolar knapping and widely applied trimming technique of shaping the working edges of tools. Some signals of probable population movements penetrated the territory of Ukraine by the Asia Minor “western” trajectory and by Caucasian “eastern” way are revealed.