I compare the available theoretical models that describe the Cronin effect on hadron and minijet production in proton-nucleus collisions, pointing out similarities and differences among them. The effect may be summarized by the value of two variables. Their values computed in the different models are compared in the energy range 27.4 GeV 5500 GeV. Finally, I propose to use the pseudorapidity sy...

We report the results of a cosmic shear survey using the 4.2m William Herschel Telescope on La Palma, to a depth of R = 25.8 (zs ≈ 0.8), over 4 square degrees. The shear correlation functions are measured on scales from 1 to 15, and are used to constrain cosmological parameters. We ensure that our measurements are free from instrumental systematics, by performing a series of tests including an ...

The immature stages of the butterfl y Magneuptychia libye (L.) are described, and their morphology is compared with other Neotropical Satyrinae.

.Graham A. 1992. The current status of the legume fossil record in the Caribbean region. In: Herendeen PS, Dilcher DL, eds. Advances in legume systematics, Part 4. The fossil records. London: Royal Botanical Gardens, Kew, 161– 167.Herendeen PS, Crepet WL, Dilcher DL. 1992. The fossil history of the Leguminosae. Phylogenetic and biogeographic implications. In: Herendeen PS, Dilcher DL, e...

the systematics, morphology, distribution, biology, economic importance and conservation of the perches of iran are described, the species are illustrated, and a bibliography on these fishes in iran is provided. there are three species, perca fluviatilis , sander lucioperca and s. marinus , found naturally in the caspian sea basin, with s. lucioperca translocated.

Integrative Systematics: Stuttgart Contributions to Natural History, which continues Stuttgarter Beiträge zur Naturkunde Serie A (Biologie), is issued by the State Museum of History and publishes articles general biological interest with a focus on morphological systematics.

Integrative Systematics: Stuttgart Contributions to Natural History, which continues Stuttgarter Beiträge zur Naturkunde Serie A (Biologie), is issued by the State Museum of History and publishes articles general biological interest with a focus on morphological systematics.