Description of a peculiar Rhithrogena nymph from the Iberian Peninsula (Ephemeroptera, Heptageniidae) Recent collecting in southern Portugal (Algarve) let to the discovery of an unusual Rhithrogena that possibly belongs to the so-called Rh. sowai group. The nymph of the species is described but not named, and affinities and relationships with other members from the Iberian Peninsula are discussed.

The effects of ice ages on speciation have been well documented for many European and North American taxa. In contrast, very few studies have addressed the consequences of such environmental and topographical changes in North East Asian species. More precisely, the Korean Peninsula offers a unique model to assess patterns and processes of speciation as it hosts the northern- and eastern-most di...

There is an very old opinion that we diagnose only most prominent BEN cases and miss latent and mild ones, that unrecognized BEN is possible in endemic villages and the number of such cases, their characteristics, and origin are unknown. From 1955 to 1998 year we evaluated 1235 patients with histologicaly proven upper urothelial tumors, who underwent surgery. The diagnosis of sporadic BEN, was ...

The Antarctic Peninsula has warmed significantly since the 1950s. This pronounced and isolated warming trend is collectively simulated by 29 twentieth-century climate hindcasts done for the Fourth Assessment Report of the Intergovernmental Panel of Climate Change. The qualitative similarity to the observed distribution of Southern Hemisphere temperature change suggests the simulated mechanisms ...

1. introduction variability and changes in precipitation amounts, including extreme precipitation and droughts, trigger relevant societal and environmental impacts. atmospheric circulation strongly determines precipitation variability over southern half of iran. the influence of prevalent synoptic situations on the distribution of precipitation amounts needs to be understood, as well as their f...

Chthamalus malayensis is a common intertidal acorn barnacle widely distributed in the Indo-West Pacific. Analysis of sequences of mitochondrial cytochrome c oxidase subunit I reveals four genetically differentiated clades with almost allopatric distribution in this region. The four clades exhibit morphological differences in arthropodal characters, including the number of conical spines and num...

Introduction: Indian childhood cirrhosis is a chronic liver disease usually seen in paediatric age group and is unique to the Indian subcontinent. The definitive causative factor for the disease is not found till now but excess copper ingestion has been associated with it.Case presentation: An Indian origin one and half year old premorbidly normal male child presented with history of gradual di...

Abstract It has long been established that plastic flow in the asthenosphere interacts constantly with overlying lithosphere and plays a pivotal role controlling occurrence of geohazards such as earthquakes volcanic eruptions. Unfortunately, accurately characterizing direction lateral extents mantle field is notoriously difficult, especially oceanic areas where deployment ocean bottom seismomet...

Co-occurrence of closely related taxa on islands could be attributed to sympatric speciation or multiple colonization. Sympatric speciation is considered to be rare in small islands, however multiple colonizations are known to be common in both oceanic and continental islands. In this study we investigated the phylogenetic relatedness and means of origin of the two sympatrically co-occurring Zo...