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Now showing items 791-800 of 1027
Gonad differentiation in zebrafish is regulated by the canonical Wnt signalling pathway
(Society for the Study of Reproduction, 2014)
Zebrafish males undergo a ‘‘juvenile ovary-to-testis’’ gonadal transformation process. Several genes, including nuclear receptor subfamily 5, group A (nr5a) and anti-Mu¨ llerian hormone (amh), and pathways such as Tp53-mediated ...
Evolutionary history of the Corallinales (Corallinophycidae, Rhodophyta) inferred from nuclear, plastidial and mitochondrial genomes
(Elsevier, 2011)
Systematics of the red algal order Corallinales has a long and convoluted history. In the present study, molecular approaches were used to assess the phylogenetic relationships based on the analyses of two datasets: a large ...
DAMPD: a manually curated antimicrobial peptide database
(Oxford University Press, 2012)
The demand for antimicrobial peptides (AMPs) is rising because of the increased occurrence of pathogens that are tolerant or resistant to conventional antibiotics. Since naturally occurring AMPs could serve as templates ...
Please call ME.N.U.4EVER: designing for “Callback” in rural Africa
(Product & Systems Internationalisation, Inc, 2011)
Designers and developers are naïve about the ways impoverished people in rural Africa innovate new uses of mobile technology to circumvent access difficulties. Here, we report on the local appropriation of an USSD ‘Callback’ ...
Cardiovascular effects of the alkaloid hippadine on the isolated perfused rat heart
(Open Access Science Research Publisher, 2012)
Crinum macowanii has been used extensively in traditional medicines for treatment of various illnesses such as oedema and ‘heart disease’. Previous studies of the crude bulb extracts on Langendorff perfused isolated rat ...
Ensuring the security and privacy of information in mobile health-care communication systems
(Academy of Science of South Africa, 2011)
The sensitivity of health-care information and its accessibility via the Internet and mobile technology systems is a cause for concern in these modern times. The privacy, integrity and confidentiality of a patient’s data ...
The role of Severe Acute Respiratory Syndrome (SARS)-Coronavirus Accessory Proteins in Virus Pathogenesis
(MDPI, 2012)
A respiratory disease caused by a novel coronavirus, termed the severe acute respiratory syndrome coronavirus (SARS-CoV), was first reported in China in late 2002. The subsequent efficient human-to-human transmission of ...
The Herschel* view of the environment of the radio galaxy 4C+41.17 at z = 3.8
(Oxford University Press, 2013)
We present Herschel observations at 70, 160, 250, 350 and 500 μm of the environment of the
radio galaxy 4C+41.17 at z = 3.792. About 65 per cent of the extracted sources are securely
identified with mid-infrared sources ...
ANCAEE: A novel clustering algorithm for energy efficiency in wireless sensor networks
(Scientific Research Publishing, 2011)
One of the major constraints of wireless sensor networks is limited energy available to sensor nodes because of the small size of the batteries they use as source of power. Clustering is one of the routing techniques that ...
Foreword to special section: groundwater in Africa
(Wiley-Blackwell, 2010)