The Palaeozoic rock units mainly, Ghelli, Niur, Padeha, Khoshyeilagh and Mobark formations are well-exposed in the north of Robat-e Gharabil village. 116 out of 157 surface samples were analyzed to determine aged relationships of Ghelli Formation. The samples of Ghelli Formation are dominated by acritarchs (42 species belonging to 23 genera) and chitinozoans (26 species distributing among 15 ge...

for the first time, an assemblage of cryptospores, which includes 10 species belonging to nine genera, from the upper ordovicianstrata, is being reported, in iran. these cryptospore assemblages were recovered from the upper part of ghelli formation., from theeastern alborz mountain range. these peri-gondwanan cryptospores have been classified based on their morphology (monad, truedyad, pseudody...

For the first time, an assemblage of cryptospores, which includes 10 species belonging to nine genera, from the Upper Ordovicianstrata, is being reported, in Iran. These cryptospore assemblages were recovered from the upper part of Ghelli Formation., from theeastern Alborz Mountain range. These peri-Gondwanan cryptospores have been classified based on their morphology (monad, truedyad, pseudody...

Well-preserved miospore assemblages are recorded from the Late Ordovician (Katian-Hirnantian), Ghelli Formation in Pelmis-gorge at the north-eastern Alborz Mountain The palynomorphs were extracted from siliciclastic deposits which are well-dated by using of marine palynomorphs (acritarchs and chitinozoans). The encountered miospore assemblages consist of 14 genera (28 species: 26 cryptospores a...

We lift Cardelli, Ghelli and Gordon’s secrecy group creation operator [1] to a relative of the spicalculus that supports symmetric key cryptography, and show a natural extension of the associated type system. We then formulate a notion of secrecy preservation in the presence of cryptography, and prove that well-typed processes in the extended type system preserve secrecy of declared secrets, ev...

In this paper we present a recursion-theoretic denotational semantics for Featherweight Java. Our interpretation is based on a formalization of the object model of Castagna, Ghelli and Longo in a predicative theory of types and names. Although this theory is prooftheoretically weak, it allows to prove many properties of programs written in Featherweight Java. This underpins Feferman’s thesis th...

System F-bounded is a second order lambda calculus with subtyping. It extends system F≤ (see [Cardelli Wegner 85, Curien Ghelli 92, Ghelli 90, Cardelli et al. 91]) in that bounds of typed quantification may contain the bounded variable. In object-oriented terms, this feature allows one to write functions which accept parameters belonging to all the classes which inherit from one class. F-bounde...

6. Hatefi. Y. (1985) Annu. Rev. Hiochem. 54, 10 151069 Weiss, H., Friedrich, T., Hofaus, G. and Preis, 1). (1991) Eur. J. Hiochem. 197.563-576 Walker, J. E. (1992) Q. Rev. Hiophys. 25,253-324 Degli Esposti, M., DeVries, S., Crimi, M., Ghelli, A., Patarnello, T. and Meyer, A. (1993) Biochim. Biophys. Acta 1143,243-271 Crofts, A., Hacker, B., Harquera, H., Yun, C. H. and Gennis, R. H. (1992) Bioc...