Understanding the biogeochemical cycling of mercury is critical for explaining the presence of mercury in remote regions of the world, such as the Arctic and the Himalayas, as well as local concentrations. While we have good knowledge of present-day fluxes of mercury to the atmosphere, we have little knowledge of what emission levels were like in the past. Here we develop a trend of anthropogen...

I the two volumes of The Civilizing Process (first published in German in 1939, and in English in 1982) Norbert Elias studied changes in manners, society, and personality in western Europe over the period roughly from 850 to 1850. The documentary evidence upon which he based his argument was mainly derived from the second half of this period, from 1350 to 1850. The purpose of the study was to a...

Superoxide Dismutase Hypertrophy of Cerebral Arterioles in Mice Deficient in Expression of the Gene for CuZn Print ISSN: 0039-2499. Online ISSN: 1524-4628 Copyright © 2006 American Heart Association, Inc. All rights reserved. is published by the American Heart Association, 7272 Greenville Avenue, Dallas, TX 75231 Stroke doi: 10.1161/01.STR.0000227236.84546.5a 2006;37:1850-1855; originally publi...

A revision of the genus Helius Lepeletier & Serville, 1828 (Diptera: Limoniidae) from Baltic amber (Eocene) is presented. Redescriptions of 5 species, Helius formosus Krzemiński, 1993, Helius linus Podenas, 2002, Helius minutus (Loew, 1850), Helius mutus Podenas, 2002, Helius pulcher (Loew, 1850) of this genus from Baltic amber are given and documented by photographs and drawings. Four new spec...

The ant tribe Dacetini contains more than 800 species (Bolton et al. 2006). Many dacetine ants are specialized predators on soil inhabiting arthropods such as Collembola, Acarina, and to some extent also Diplura (Brown and Wilson 1959; Masuko 1984, 2009ab; Wilson 1953). Due to their peculiar morphological characteristics related to this specialized predation, dacetine ants have attracted the in...

Frogs have been valuable as test animals in neurophysiological and related investigations for many centuries. Basic facts discovered by means of frog preparations include the existence of animal electricity (Galvani, 1791), the anatomical basis of a reflex arc (Hall, 1850), the speed of nerve impulse conduction (Helmholtz, 1850), the inhibition exercised by brain centres on the cord (Sechenov, ...

Se describen e ilustran Jaguarita n. gen., Tapirita Armadillita Carpinchita gen. y adrianoi sp. Las siguientes especies actualmente asignadas a Cycloneda son transferidas otros géneros: conjugata (Mulsant, 1850) comb., ocelligera (Crotch, 1874) separata vogli (Mader, 1958) graphiptera costaricae (Chapin, 1941) meander lorata devestita puncticollis comb. Paraneda pomacea (Weise, 1903) reconoce p...

ions for Publish/Subscribe Interaction. ECOOP 2000, LNCS vol. 1850. 3. J. Gray, A. Reuter. Transaction Processing: Concepts and Techniques. Morgan Kaufmann 1993, ISBN 1-55860-190-2.

The Diptera genus-group names of Pierre-Justin-Marie Macquart are reviewed and annotated. A total of 399 available genus-group names in 69 families of Diptera are listed alphabetically, for each name giving author, year and page of original publication, originally included species, type species and method of fixation, current status of the name, family placement, and a list of any emendations o...