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Assessment of temporal and spatial evolution of bacterial communities in a biological sand filter mesocosm treating winery wastewater
(The Society for Applied Microbiology, 2013)
AIMS: To assess the impact of winery wastewater (WW) on biological sand filter (BSF) bacterial community structures, and to evaluate whether BSFs can constitute alternative and valuable treatment-processes to remediate WW. ...
The relationship between seminal leukocytes, oxidative status in the ejaculate, and apoptotic markers in human spermatozoa
(Taylor & Francis, 2013)
The aim of this study was to investigate the relationship between seminal leukocytes, reactive oxygen species (ROS) production in the ejaculate, and markers of apoptosis in human spermatozoa. Semen samples were collected ...
Anti-lensing: the bright side of voids
(American Physical Society, 2013)
More than half of the volume of our Universe is occupied by cosmic voids. The lensing magni ca-
tion e ect from those under-dense regions is generally thought to give a small dimming contribution:
objects on the far side ...
Is human Immunodeficiency Virus (HIV) stage an independent risk factor for altering the periodontal status of HIV-positive patients? A South African study
(BioMed Central, 2013)
Background: The immunosuppresion in HIV patients makes them highly susceptible to microbial infections. The
aim of the study was to establish whether HIV stage (as depicted by CD4+ T lymphocyte counts) could
independently ...
Understanding issues of people living with disabilities in South Africa
(SAGE Publications, 2013)
The problem of disabilities is growing all over the world. Nevertheless, some progress has been made since the year 1981 was proclaimed International Year of Disabled Persons. In 2001 people living with disabilities accounted ...
Drug susceptibility profiles of Candida species isolated from the oral mucosa of HIV-positive West African patients using the TREK Sensititre system
(2013)
BACKGROUND: Candida infections are a common cause of death in
immunocompromised patients. The prevalence and anti-mycotic
drug susceptibility profiles of Candida species from Cameroon in
Africa are unavailable. This ...
Chemical, mineralogical and morphological changes in weathered coal fly ash: A case study of a brine impacted wet ash dump
(Elsevier, 2013)
The mobility of species in coal fly ash (FA), co-disposed with brine using a wet ash handling system, from a coal fired power generating utility has been investigated. The study was conducted in order to establish if the ...
An unconditionally stable nonstandard finite difference method applied to a mathematical model of HIV infection
(De Gruyter Open, 2013)
We formulate and analyze an unconditionally stable nonstandard finite difference method for a mathematical model of HIV
transmission dynamics. The dynamics of this model are studied using the qualitative theory of dynamical ...
Comparison of CO2 capture by ex-situ accelerated carbonation and in in-situ naturally weathered coal fly ash
(Elsevier, 2013)
Natural weathering at coal power plants ash dams occurs via processes such as carbonation, dissolution, co-precipitation and fluid transport mechanisms which are responsible for the long-term chemical, physical and geochemical ...
Laboratory study on the mobility of major species in fly ash–brine co-disposal systems: up-flow percolation test
(Springer Verlag, 2013)
Apart from the generation of fly ash, brine (hyper-saline wastewater) is also a waste material generated in South African power stations as a result of water re-use. These waste materials contain major species such as Al, ...