Чинники впливу на розвиток інвестиційної і страхової діяльності страховика

Метою статті є визначення рівня важливості чинників впливу на інвестиційну діяльність страхових компаній і дослідження внутрішньої структури можливого впливу інвестиційної діяльності страховиків на розвиток страхового ринку в Україні

Avalanche Dynamics in Wet Granular Materials

We have studied the dynamics of avalanching wet granular media in a rotating drum apparatus. Quantitative measurements of the flow velocity and the granular flux during avalanches allow us to characterize novel avalanche types unique to wet media. We also explore the details of viscoplastic flow (observed at the highest liquid contents) in which there are lasting contacts during flow, leading to coherence across the entire sample. This coherence leads to a velocity independent flow depth at high rotation rates and novel robust pattern formation in the granular surface.Comment: 5 pages, 3 figures in color, REVTeX4, for smaller pdfs see http://angel.elte.hu/~tegzes/condmat.htm

Classification of landforms in Southern Portugal (Ria Formosa Basin)

A Geographic Information Systems-based tool is used for macro-landform classification following the Hammond procedure, based upon a Digital Terrain Model (DTM) created from ordinary Kriging. Gentle slopes, surface curvature, highlands and lowlands areas are derived from the DTM. Combining this information allows the classification of terrain units (landforms). The procedure is applied to the Ria Formosa basin (Southern Portugal), with five different terrain types classified (plains, tablelands, plains with hills, open hills and hills)

First GIS analysis of modern stone tools used by wild chimpanzees (Pan troglodytes verus) in Bossou, Guinea, West Africa

Stone tool use by wild chimpanzees of West Africa offers a unique opportunity to explore the evolutionary roots of technology during human evolution. However, detailed analyses of chimpanzee stone artifacts are still lacking, thus precluding a comparison with the earliest archaeological record. This paper presents the first systematic study of stone tools used by wild chimpanzees to crack open nuts in Bossou (Guinea-Conakry), and applies pioneering analytical techniques to such artifacts. Automatic morphometric GIS classification enabled to create maps of use wear over the stone tools (anvils, hammers, and hammers/anvils), which were blind tested with GIS spatial analysis of damage patterns identified visually. Our analysis shows that chimpanzee stone tool use wear can be systematized and specific damage patterns discerned, allowing to discriminate between active and passive pounders in lithic assemblages. In summary, our results demonstrate the heuristic potential of combined suites of GIS techniques for the analysis of battered artifacts, and have enabled creating a referential framework of analysis in which wild chimpanzee battered tools can for the first time be directly compared to the early archaeological record.Leverhulme Trust [IN-052]; MEXT [20002001, 24000001]; JSPS-U04-PWS; FCT-Portugal [SFRH/BD/36169/2007]; Wenner-Gren Foundation for Anthropological Researc

Wet Granular Materials

Most studies on granular physics have focused on dry granular media, with no liquids between the grains. However, in geology and many real world applications (e.g., food processing, pharmaceuticals, ceramics, civil engineering, constructions, and many industrial applications), liquid is present between the grains. This produces inter-grain cohesion and drastically modifies the mechanical properties of the granular media (e.g., the surface angle can be larger than 90 degrees). Here we present a review of the mechanical properties of wet granular media, with particular emphasis on the effect of cohesion. We also list several open problems that might motivate future studies in this exciting but mostly unexplored field.Comment: review article, accepted for publication in Advances in Physics; tex-style change

Experimentelle Untersuchungen zu Oberflaechenabfluss und Bodenabtrag von Messparzellen und landwirtschaftlichen Nutzflaechen

With 70 figs. and 50 tabs.SIGLEAvailable from TIB Hannover: ZA 4610(81) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Oberflächenprozesse : ein altes oder ein neues Thema?

Der vorliegende Aufsatz thematisiert aktuelle Diskurse über die geomorphologischen Beiträge zu sich verändernden Forschungszielen und Paradigmen innerhalb der Erdsystem-Wissenschaften. Auf Basis des überzeugenden Paradigmas der Reliefgenerationen als multiskaliges Palimpsest von Reliefformen sollte die zukünftige geomorphologische Forschung auf den folgenden Feldern vorangetrieben werden: (1) raum-zeitskalen-bezogene Methoden, (2) Kopplung neuer Ansätze der tektonischen Modellierung und Datierungstechnologien mit einem geomorphologischem Verständnis der Geomorphogenese, (3) nichtlineare Komplexität in geomorphologischen Systemen und (4) Sedimenthaushalte in biogeochemischen Kreisläufen. Es erscheint jedoch notwendig darauf hinzuweisen, dass neue Technologien nicht die epistemologische Debatte in der Disziplin ersetzen können