................................................................................................................................... 10 Introduction .............................................................................................................................. 11 East African Saline Lakes ................................................................................................

Mixtures of Venezuelan equine encephalomyelitis, Rift Valley fever, and chikungunya viruses may be assayed by selective immunofluorescence staining of infected cell monolayers. A multiple serum neutralization test is described for quantifying reactions of these viruses with mixtures of serum antibodies.

INTRODUCTION The latest generation of head-mounted displays (HMDs) provides built-in head tracking, which enables estimating position in a room-size setting. This feature allows users to explore, navigate, and move within real-size virtual environments, such as kitchens, supermarket aisles, or streets. Previously, these actions were commonly facilitated by external peripherals and interaction m...

In this work we investigate the creation of an augmented reality environment using the Oculus Rift DK1 combined with two webcams, similar to what has been done by Steptoe et al. in [1]. First we recapitulate the definition of augmented reality and the general obstacles to overcome. Upon which we discuss the state of the art and move on to the specifics of this implementation of augmented realit...

Global climate change, linked to astronomical forcing factors, has been implicated in faunal evolutionary change in equatorial Africa, including the origin and diversification of hominin lineages. Empirical terrestrial data demonstrating that orbital forcing has a significant effect, or is detectable, at early hominin sites in equatorial continental interiors during the Pliocene, however, remai...

A double-antibody (sandwich) enzyme-linked immunosorbent assay (ELISA) was adapted to detect Rift Valley fever virus antigen. Antibodies were purified from hyperimmune mouse and rabbit sera by affinity chromatography, using CNBr-activated Sepharose 4B coupled to a beta-propiolactone-inactivated sucrose-acetone-extracted suckling mouse liver antigen. In the assay, antigen was captured by mouse a...

The importance of rainfall for the development of Aedes vexans arabiensis populations, one of the potential vectors of Rift Valley Fever in West Africa, was demonstrated in a two-year follow-up study conducted in the Ferlo region of Senegal. In 2003, the rainy season began with heavy rains and, as a result, temporary ponds, the breeding places for mosquitoes, were flooded at their maximum level...

1 Sapienza – University of Rome, Dept. of Physics, Rome, Italy 2 ARPA Valle d’Aosta (Aosta Valley Regional Environmental Protection Agency), Saint-Christophe (Aosta), Italy 3 Australian Sun and Health Research Laboratory, Queensland University of Technology, Institute of Health and Biomedical Innovation, Brisbane, Australia 4 Sapienza University of Rome, Dept. of Human Physiology and Pharmacolo...

[1] In Deep Sea Drilling Program (DSDP) Hole 417D in the western central North Atlantic, dips of pillow margins measured in the upper and lower part of basement correlate with tilts predicted from paleomagnetic inclinations in the corresponding parts of the hole. A 40 westward dip of the seafloor around 417Dmatches the tilt predicted from inclinations and pillow margin dips in the uppermost lav...

Ethiopia, among the world's poorest countries, suffers from a full spectrum of health problems. A plastic surgeon and a public health physician present their experiences in Sidamo province in the Rift Valley.