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The genetic prehistory of southern Africa
(Macmillan Publishers Limited, http://www.nature.com/ncomms/index.html, 2012)
Southern and eastern African populations that speak non-Bantu languages with click consonants are known to harbour some of the most ancient genetic lineages in humans, but their relationships are poorly understood. Here, ...
Viral diversity and diversification of major non-structural genes vif, vpr, vpu, tat exon 1 and rev exon 1 during primary HIV-1 subtype C infection
(Public Library of Science, http://www.plosone.org/, 2012)
To assess the level of intra-patient diversity and evolution of HIV-1C non-structural genes in primary infection, viral quasispecies obtained by single genome amplification (SGA) at multiple sampling timepoints up to 500 ...
Piezoelectric energy harvesting devices: an alternative energy source for wireless sensors
(Hindawi Publishing Corporation, http://www.hindawi.com/journals/smr/, 2012)
The recent advances in ultralow power device integration, communication electronics, and microelectromechanical systems
(MEMS) technology have fuelled the emerging technology of wireless sensor networks (WSNs). The spatial ...
Finite element modeling of a piezoelectric composite beam and comparative performance study of piezoelectric materials for voltage generation
(International Scholarly Research Network, http://www.hindawi.com/isrn/materials.science/, 2012)
A comparative study of the traditional PZT ceramics and new single crystals is critical in selecting the best material and
optimization of transducer design for applications such as conversion of ambient vibrations into ...
A study of the removal of heavy metals from aqueous solutions by Moringa oleifera seeds and amine-based ligand 1,4-bis[N,N-bis(2-picoyl)amino]butane
(Elsevier Science Ltd, www.elsevier.com/locate/aca, 2012)
Uptake for lead, copper, cadmium, nickel and manganese from aqueous solution using the Moringa oleifera seeds biomass (MOSB) and amine-based ligand (ABL) was investigated. Experiments on two synthetic
multi-solute systems ...
Assessing acceptance of adaptive educational hypermedia systems: prior knowledge vs. cognitive styles
(International Journal of Computer Science Issues, http://www.ijcsi.org/index.php, 2012)
Perceived usefulness and ease of use have proved to be key
determinants of the acceptance and usage of e-learning
systems. On the contrary, little is known about students'
perceptions in Adaptive Educational Hypermedia ...
Reactions of salicylaldehyde and enolates or their equivalents: versatile synthetic routes to chromane derivatives
(Beilstein-Institut, https://www.beilstein-journals.org/bjoc/home/home.htm, 2012)
The reported methodologies for the synthesis of chromane derivatives through the reaction of salicylaldehyde and enolates are
discussed. The enolates and their equivalents involved in the reactions discussed in this article ...
Gravity and Aeromagnetic Studies of the Filabusi Greenstone Belt, Zimbabwe Craton: Regional and Geotectonic Implications
(Scientific Research Publishing Inc., http://www.scirp.org, 2012)
The Filabusi greenstone belt (FGB), Zimbabwe craton, has been geologically remapped relatively recently but its regional tectonic setting and subsurface structure have, until now, remained unresolved. This paper presents ...