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Bibliothèque cantonale jurassienne

Maintenance of trophic structure in fossil mammal communities : site occupancy and taxon resilience

Jernvall, Jukka ; Fortelius, Mikael

In: American naturalist : a popular illustrated magazine of natural history, 2004, vol. 164, no. 5, p. 614

Université de Fribourg

Taxonomic revision and new species/subspecies of Middle-Late Miocene (Bessarabian) miliolids of the Family Hauerinidae Schwager from Georgia — Eastern Paratethys

Maisuradze, Lamara ; Koiava, Kakhaber ; Spezzaferri, Silvia

In: Geologica Carpathica, 2009, vol. 60, no. 5, p. 419-430

Three new miliolid taxa from Bessarabian sediments from Georgia (Eastern Paratethys) are described following the classification of Łuczkowska (1972), which has never been used before by ex-Soviet micropaleontologists. They are: Varidentella luczkowskae; Varidentella reussi (Bogdanowicz) subsp. costulata; and Affinetrina voloshinovae (Bogdanowicz) subsp. eldarica. This classification takes into...

Université de Fribourg

Towards the standardization of sequence stratigraphy

Catuneanu, O. ; Abreu, V. ; Bhattacharya, J.P. ; Blum, M.D. ; Dalrymple, R.W. ; Eriksson, P.G. ; Fielding, C.R. ; Fisher, W.L. ; Galloway, W.E. ; Gibling, M.R. ; Giles, K.A. ; Holbrook, J.M. ; Jordan, R. ; Kendall, C.G.St.C. ; Macurda, B. ; Martinsen, O.J. ; Miall, A.D. ; Neal, J.E. ; Nummedal, D. ; Pomar, L. ; Posamentier, H.W. ; Pratt, B.R. ; Sarg, J.F. ; Shanley, K.W. ; Steel, R.J. ; Strasser, André ; Tucker, M.E. ; Winker, C.

In: Earth-Science Reviews, 2009, vol. 92, no. 1-2, p. 1-33

Sequence stratigraphy emphasizes facies relationships and stratal architecture within a chronological framework. Despite its wide use, sequence stratigraphy has yet to be included in any stratigraphic code or guide. This lack of standardization reflects the existence of competing approaches (or models) and confusing or even conflicting terminology. Standardization of sequence stratigraphy...

Université de Fribourg

Astronomical time scale for the middle Oxfordian to late Kimmeridgian in the Swiss and French Jura mountains

Strasser, André

In: Swiss Journal of Geosciences, 2007, vol. 100, no. 3, p. 407-429

Detailed investigation of facies and sedimentary structures reveals that, during the Middle Oxfordian to Late Kimmeridgian, the shallow carbonate platform of the Swiss and French Jura Mountains recorded high-frequency sea-level fluctuations quite faithfully. The cyclostratigraphic analysis within the established biostratigraphic and sequence-chronostratigraphic framework implies that the...

Università della Svizzera italiana

Incomplete information and the closed-end fund discount

Barone-Adesi, Giovanni ; Kim, Youngsoo

We model the closed-end fund discount/premium in a version of Merton’s (1978) asset pricing model with incomplete information. In this economy, investors trade only assets which they “ know about” . The model generates a closed-end fund discount or premium, depending on risk-aversion parameters. The fund share price reverts to the net asset value on open-ending of the fund. The...

Università della Svizzera italiana

Incomplete information and the closed-end fund discount

Barone-Adesi, Giovanni ; Kim, Youngsoo

We model the closed-end fund discount/premium in a version of Merton’s (1978) asset pricing model with incomplete information. In this economy, investors trade only assets which they “know about”. The model generates a closed-end fund discount or premium, depending on risk-aversion parameters. The fund share price reverts to the net asset value on open-ending of the fund. The...

Università della Svizzera italiana

A new approach to check the free boundary of single factor interest rate put option

Allegretto, Walter ; Barone-Adesi, Giovanni ; Dinenis, Elias ; Lin, Yangpin ; Sorwar, Ghulam

The application of Green’s theorem to free boundary problems in option pricing leads to a new metric to measure numerical errors. Free boundaries for a variety of interest rate models are computed more accurately through minimization of our metric.