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Now showing items 881-890 of 912
Ozone and nitric oxide induce cGMP-dependent and independent transcription of defence genes in tobacco
(Wiley, 2009)
Here, we analyse the temporal signatures of ozone (O3)-induced hydrogen peroxide
(H2O2) and nitric oxide (NO) and the role of the second messenger guanosine
3′,5′-cyclic monophosphate (cGMP) in transcriptional changes ...
Key challenges to achieving health for all in an inequitable society: The case of South Africa
(American Public Health Association, 2006)
The health inequalities in South Africa are rapidly worsening. Since 1994, the new democratic government has initiated a number of large-scale policies and programs with explicit pro-equity objectives that have improved ...
Identification of a novel alkaliphilic esterase active at low temperatures by screening a metagenomic library from Antarctic desert soil
(American Society for Microbiology, 2009)
The cold deserts of the McMurdo Dry Valleys, South Victoria Land, Eastern Antarctica, are widely acknowledged as
having the harshest soil environments on Earth (6, 8, 26).
Despite the apparent hostility of the environment, ...
2-phenoxyethanol as anaesthetic in removing and relocating 102 species of fishes representing 30 families from sea world to uShaka Marine World, South Africa
(AOSIS, 2008)
The South African Association for Marine Biological
Research, incorporating Sea World, Oceanographic
Research Institute and the Dolphinarium relocated
from their old premises of 46 years on Durban’s
beach front in March ...
Promoting physics and development in Africa
(American Institute of Physics, 2004)
To excel in physics research in Africa is to conquer Mount Everest without the aid of additional oxygen. In a continent that lacks the infrastructure of research laboratories, technical support, and so forth, relatively ...
Patient satisfaction with health care providers in South Africa: The influences of race and socioeconomic status
(Oxford University Press, 2005)
The first democratic government elected in South Africa in 1994 inherited huge inequalities in health status and
health provision across all sections of the population. This study set out to assess, 4 years later, the ...
Post-translational cleavage of recombinantly expressed nitrilase from Rhodococcus rhodochrous J1 yields a stable, active helical form
(Wiley, 2007)
Nitrilases convert nitriles to the corresponding carboxylic acids and ammonia.
The nitrilase from Rhodococcus rhodochrous J1 is known to be inactive
as a dimer but to become active on oligomerization. The recombinant
enzyme ...
Electrocatalytic sensor devices: (I) cyclopentadienylnickel(II) thiolato Schiff base monolayer self-assembled on gold
(Elsevier, 2004)
The fabrication of a self-assembled monolayer (SAM) of a cyclopentadienylnickel(II) thiolato Schiff base compound, [Ni(SC6H4NC(H)C6H4
OCH2CH2SMe)( 5-C5H5)]2 on a gold electrode is described. Effective electronic communication ...
Renosterveld conservation in South Africa: A case study for handling uncertainty in knowledge-based neural networks for environmental management
(International Society for Environmental Information Sciences, 2009)
This work presents an artificial intelligence method for the development of decision support systems for environmental
management and demonstrates its strengths using an example from the domain of biodiversity and ...
Figure rotation of dark haloes in cold dark matter simulations
(Oxford University Press, 2007)
We investigate the figure rotation of dark matter haloes identified in cold dark matter (CDM)
simulations.We find that when strict criteria are used to select suitable haloes for study, five of
the 222 haloes identified ...