In the absence of interventions to reduce mother-to-child transmission (MTCT), studies show that between 25% and 45% of HIV-infected breast-feeding women pass the virus to their infants. The rate of HIV transmission through breast-milk ranges from 12% to 26%, depending on the duration of breastfeeding, the time since HIV infection and the presence of mastitis or other systemic infections. HIV c...

Page 281 Allomones are defensive chemicals used by many small and slow moving animals for protection against predators. These irritant chemical mixtures are widespread in arthropods and often contain aldehydes as constituents such as (E)-2-alkenals which contain a double bond between the alpha and beta carbon atoms. The chain lengths of these repellents can vary in chain length which is in the ...

The complex chemistry of uranyl nitrate with mono and bi-functional neutral extractants shows, that it forms 1:2 and 1:1 complexes respectively. The structures of the isolated complexes show, that the water molecules from the primary coordination sphere of [UO2(NO3)2.2H2O] are replaced by the extractants completely and adopt a hexagonal bi-pyramidal geometry. However, the structural chemistry o...

BACKGROUND: The clinical signs and symptoms such as swelling, pain, and redness are unreliable markers of deep vein thrombosis (DVT). As a consequence, venous duplex scanning (VDS) has been heavily used in DVT detection. The purpose of this study was to determine if a combination of D–dimer testing and pretest clinical score could reduce the use of VDS in symptomatic patients with suspected DVT...

T HE TWO major problems in bacterial in fections facing us today are the control of staphylococcal infections, and the con trol of cases of bacillary sepsis.1 Infections due to staphylococci that are resistant to almost all existing chemotherapeutic and antibiotic agents are prevalent in hospital patients and are especially common in wound infections. Bacillary sepsis, on the other hand, makes ...