The relationship of extensional and compressional tectonics to a Precambrian fracture system in the eastern overthrust belt, USA

The central and southern Appalachians have a long history of interrelated extensional and compressional tectonics. It is proposed that each episode was controlled by a reactivation of a fracture system in the Precambrian basement. Proprietary seismic-reflection profiles show a system of down-to-the-east Precambrian extensional faults. When under renewed extension, these faults produce features such as the western border faults of Mesozoic basins, and when under compression, probably produce tectonic ramps in the overlying sedimentary cover rocks as well as the spatially and genetically related Alleghenian folds. This system, which parallels the Appalachian trend, is cut by a system of cross-strike hinge or scissors faults that have probable strike-slip movements. Reactivation of this cross-strike system appears to have produced lateral ramps that connect decollements at different stratigraphic levels and caused abrupt changes in fold wavelength along strikes. Continued reactivation of this cross-strike system is suggested by east-west border faults and Precambrian highs between Mesozoic basins. The present activity of this system is suggested by the fact that more than 35% of recent earthquakes are coincident with cross-strike faults and lateral ramps

Exposures and exposure hedging in exchange rate risk management

Corporations are affected by increasing volatilities on foreign exchange markets. A response to this development was the creation of financial instruments, so called derivatives, in order to protect corporations from the effects of flexible exchange rates. To understand the included risks and to take correct decisions it is necessary to get a fundamental insight into exchange rate risk management. First it is the aim of this paper to systemize the possibilities of determining exchange rate risk as well as objectives of exchange rate risk management. In the second part of the paper a model to determine the optimal hedge ratio in the case of hedging transaction risks with forwards is described. --Currency Risk,Transaction Risk,Currency Forwards,Optimal Hedging

Astrogeology 13 - Lunar crater morphology and relative age determination of lunar geologic units Interagency report

Lunar crater morphology and age classification syste

A photogeologic comparison of Skylab and LANDSAT images of southwestern Nevada and southeastern California

There are no author-identified significant results in this report

Discrimination of geologic materials using Skylab S-192 data, part 3

There are no author-identified significant results in this report

Remote sensing geophysics from Skylab

There are no author-identified significant results in this report

Counterfactual Reasoning: Sharpening Conceptual Distinctions in Developmental Studies

Counterfactual reasoning (CFR)—mentally representing what the world would be like now if things had been different in the past—is an important aspect of human cognition and the focus of research in areas such as philosophy, social psychology, and clinical psychology. More recently, it has also gained broad interest in cognitive developmental psychology, mainly focusing on the question of how this kind of reasoning can be characterized. Studies have been inconsistent in identifying when children can use CFR. In this article, we present theoretical positions that may account for this inconsistency and evaluate them in the light of research on counterfactual emotions

Linkshändigkeit aus anthropologischer Sicht

Untersuchung der Händigkeit an StudentInnenStudy about handedness of student