Most companion birds have no distinct sexual dimorphic traits.The aim of this study was to identify the CHD genes from sexual chromosomes of birds (ZW) from various tissue samples.Feathers, oral swabs, blood and various tissues (by necropsy) were collected from four companion bird species (Gallus gallus domesticus, Melopsittacus undulatus, Psittacu
Background: Health care-associated infections (also called hospital-acquired or nosocomial infections) add to the morbidity and mortality and costs that one might expect from the underlying illness alone.All this has led to concerted efforts to implement infection control programs in all teaching hospitals, hospitals, and other health centers; the
The non-invasive inspection of surfaces is a major issue in a wide variety of industries and research laboratories.The vast and increasing range of surface types, tolerance requirements and measurement constraints OAT FLAKES demanded during the last decades represents a major research effort in the development of new methods, systems and metrologic
This study investigates the trade effects of the EU-SA and SADC preferential trade agreements of which South Africa is a member.Using a panel data estimation of the gravity model of bilateral trade and based on data from 1994 to 2008, the study finds the EU-SA preferential trade agreement to have ROOIBOS CHAI a significant trade expansion effect.Th