this study provide a new and updated checklist of the freshwater fishes of the dasht-e kavir basin of iran. the list is based on historical literature records and taxon occurrence data obtained as a result of extensive field expeditions, examination of ichthyological collections and literature review. the total confirmed freshwater fish species  of  the  dasht-e kavir  basin  comprise  22  spec...

This review focuses on reward-schedule effects, a family of learning phenomena involving surprising devaluations in reward quality or quantity (as in incentive contrast), and reward omissions (as in appetitive extinction), as studied in three taxonomic groups of vertebrates:

In a recent paper Warwick & Clarke (1995: Mar Ecol Prog Ser 129:301-305) introduced 2 new measures of community diversity, A and A' These measures dlffer from more conventional d~ver sity indices by incorporating the taxonomic relatedness of species into their calculation. In this paper we compare temporal trends in A and A' with more conventional diversity measures for the demersal fish commun...

The genus Astragalus L. (Fabaceae) is reviewed from both phyloenetic and taxonomic points of view. As the largest genus of flowering plants it has attracted many researchers, but much work remains to be done. A short taxonomic history with special focus on infrageneric classification of the genus, a list of phylogenetic studies including the applied markers and sampling strategies as well a...

The paper is focused on classes of lexical units which arise as a result of derivational processes – word formation and semantic transfers, acting either in isolation or together, on the basis of common semantic foundations that bind targets and sources of derivation. The lexical items which constitute the classes under study vary in their denotative characteristics and due to their categ...

The paper gives an introduction to parallel discrete event simulation (PDES) and emphasising the classification of the research done in the area. Such a classification includes a time line presentation of different streams of thought in the field and research from different angles. In this respect four synchronisation streams including conservative, optimistic, hybrid and adaptive protocols are...

A taxonomic review of Korean Gyrinidae is presented. Seven species [Dineutusorientalis (Modeer, 1776), Gyrinusgestroi Régimbart, 1883, Gyrinusjaponicus Sharp, 1873, Gyrinuspullatus Zaitzev, 1908, Orectochiluspunctipennis Sharp, 1884, OrectochilusRegimbarti Sharp, 1884 and Orectochilusvillosus (Müller, 1776)] in three genera are recognized, one of which (Orectochiluspunctipennis Sharp, 1884) is ...

This paper aims to provide an overview of the key problems and perspectives to-ward a sustainable supply chain of HIV/AIDS related commodities. It is based on an extensive literature study, taking into account recent major reviews, and considering a wide range of different views from eminent experts worldwideMost research has focused on trying to implement and introduce humanitarian logistics a...

The order “Pachycephalosauria” and the family Pachycephalosauridae are re-evaluated and determined to include the same taxa. They are thus of equal rank and redundant, so only the latter taxon is recognized, the former one being redundant. The family Pachycephalosauridae includes the so-called “flat-headed” and “dome-headed” morphotypes. Stenopelix valdensis is removed from the “Pachycephalosau...