A comprehensive remote sensing survey of AlUla County in north-west Saudi Arabia has revealed 32 examples the ancient, stone-built animal traps known as ‘kites’. Noting that most (27) are located on Ḥarrat ʿUwayriḍ, a satellite parts lavafield outside was undertaken, identifying further 175 kites. These show commonalities with ‘V-shaped’ kites previously identified mountainous areas along weste...

In this paper we emphasize the contribution of technical change, broadly defined, towards productivity growth in explaining the relative East Germany-West Germany performance during the post-world war II era. It is argued that previous work was excessively focused on physical capital investments determining productivity differentials, which consequently led to an overestimation of the East Germ...

To determine the cause of an unprecedented outbreak of encephalitis among horses in New South Wales, Australia, in 2011, we performed genomic sequencing of viruses isolated from affected horses and mosquitoes. Results showed that most of the cases were caused by a variant West Nile virus (WNV) strain, WNV(NSW2011), that is most closely related to WNV Kunjin (WNV(KUN)), the indigenous WNV strain...

A serosurvey for neutralizing antibodies against West Nile virus (WNV) in common coots (Fulica atra) was conducted in Doñana, Spain. Antibody prevalence was highest in 2003, intermediate in 2004, and lowest in 2005. Some birds seroreverted <1 year after first capture. Seroconversion of birds suggests local circulation of the virus.

The study aims to increase community awareness at the household level about certain hygienic practices and water quality in order to develop an effective program that will target improving specific hygiene-related behavior. The study was carried out in two Palestinian villages and applies a quasi-experimental design where chemical and biological water quality analysis as well as residential beh...

Abstract Moringa oleifera is an edible medicinal plant used to fight malnutrition in Africa. In this study, M. flowers, fruits and seeds from Guinea-Bissau were characterized for their nutritional composition hydroethanolic aqueous extracts prepared investigate the phenolic profiles bioactivities. Seeds presented higher levels of proteins (~31 g/100 g dw), fat (~26 g/100 g dw) flavan-3-ol deriv...

Arsenic contamination in groundwater affecting West Bengal (India) and Bangladesh is a serious environmental problem. Contamination is extensive in the low-lying areas of Bhagirathi–Ganga delta, located mainly to the east of the Bhagirathi River. A few isolated As-contaminated areas occur west of the Bhagirathi River and over the lower parts of the Damodar river fan-delta. The Damodar being a P...

dust storm is a meteorological phenomenon common in arid and semi-arid regions. iran and particularly its west and south-west parts, periodically faces with the dust phenomenon and its problems. in this investigation two dust samples has been selected and studied that they has sustained over three days with visibility less than 1000m in west of iran. the first one occurred during 18 - 21 april ...

Objective-To discover the cause of an outbreak of facial rash in a holiday centre. Design-Questionnaire survey of those with rash; analysis of samples of linen. Setting-Holiday centre in south west England. Patients-98 holidaymakers presenting to the first aid post with a facial rash. Intervention-Replacement of bed linen with new linen in selected parts of the site. Results-The attack rate was...