Scootering on: An investigation of children’s use of scooters for transport and recreation

Non-motorised scooters have increased significantly in popularity over the last few years in New Zealand, following similar trends in the US, Australia, Canada and Europe. Non-motorised scooters are an important source of recreation, transport and exercise and children of all ages enjoy riding them to and from school and in skate parks. Along with the increase in popularity and use of the scooters, New Zealand is also experiencing a considerable increase in the numbers of injuries to children, with a notable spike in ACC claims in the 2011-12 year. Whilst most of the injuries are moderate – dislocations, fractures, lacerations and soft-tissue injuries – an increase in the number of severe injuries, and at times, even fatalities is also evident. Boys tend to be injured more frequently than girls and the median age for injury is nine years. Most injuries occur at home, with public roads the next most likely location. International literature shows similar trends world-wide. Numbers of scooter injuries are escalating and an intervention to minimise harm and reduce risk is considered imperative in all regions. The evidence shows that children are not wearing protective equipment (such as helmets) when travelling on a non-motorised scooter and there is no legal requirement for them to do so. Elbow and knee pads – and even footwear – were conspicuously absent amongst children observed in fieldwork undertaken for this project. Children routinely use basic scooters for activities unsuited to their design and on terrain that poses further risks. It was also evident that children scootering to school were not subject to the same regulations as those cycling to school and there appears to be a general lack of awareness of the risks associated with scootering. We therefore propose the following recommendations as means by which we might minimise the risks and reduce harm to children: o Amend the current cycle helmet legislation to include the riders of all wheeled recreational devices, irrespective of the age of the rider; o Introduce school policies requiring that helmets and footwear are worn when scootering to and from school; o Implement a minimum age for scootering to and from school; o Extend the coverage of existing school training programmes on road safety in general and safe scootering in particular; o Require compulsory distribution of point-of-sale information packs on the risks of scooters and the protective equipment options available; o Ensure continued funding of current community resources and training initiatives o Further research on scooter accidents and associated risk factor

Wedding tourism in South Africa: an exploratory analysis

Abstract: Niche forms of tourism are a growing focus in tourism scholarship. One little explored form of niche tourism is the specialized micro-niche of wedding tourism. Within the growing literature that deals with niche forms of tourism in South Africa there has thus far been minimal attention given to the notion of wedding tourism. This article addresses this investigatory void through an exploratory analysis of the wedding tourism industry in South Africa in general and more specifically of Gauteng, the country‟s major population hub. The empirical material centres on the spatial organisation of wedding venues in South Africa with evidence from Gauteng as the principal focus. The findings show that „place matters‟ both in the choice of venues by international or domestic consumers and the existence of distinct clusters of venues which are unrelated to patterns of population. Interviews reveal that wedding tourism is a growing activity for many hospitality businesses and commonly linked also to business tourism with the hosting of conferences. The expanding profitability of wedding tourism has attracted new hospitality businesses to enter this niche market and correspondingly to raise levels of competition in this niche form of tourism

The need for and value of a maxillofacial prosthodontic service in the Witwatersrand-Vaal area: part II: A survey of patients who required maxillofacial prosthodontic treatment

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Review: Pharmaceutical and personal care products (PPCPs) as endocrine disrupting contaminants (EDCs) in South African surface waters

Globally, water resources are under constant threat of being polluted by a diverse range of man-made chemicals, and South Africa is no exception. These  contaminants can have detrimental effects on both human and wildlife health. It is increasingly evident that several chemicals may modulate endocrine system pathways in vertebrate species, and these are collectively referred to as endocrine disrupting contaminants (EDCs). Although the endocrine-disrupting effect of water pollutants has been mainly linked to agricultural pesticides and industrial effluents, other pollutants such as pharmaceuticals and personal care products (PPCPs) are largely unnoticed, but also pose a potentially significant threat. Here we present for the first time in a South African context, a summarised list of PPCPs and other EDCs detected to date within South African water systems, as well as their possible endocrine-disrupting effect in-vitro and in-vivo. This review addresses other factors which should be investigated in future studies, including endocrine disruption, PPCP metabolites, environmental toxicology, and antibiotic resistance. The challenges of removing EDCs and other pollutants at South African wastewater treatment works (WWTWs) are also highlighted. The need for focused research involving both in-vitro and in-vivo studies to detect PPCPs in water systems, and to delineate adverse outcome pathways (AOPs) of priority PPCPs to aid in environmental impact  assessment (EIA), are discussed.Keywords: pharmaceutical, endocrine disruption, wastewater, sewage wate

The fate of pharmaceuticals and personal care products (PPCPs), endocrine disrupting contaminants (EDCs), metabolites and illicit drugs in a WWTW and environmental waters.

A large number of emerging contaminants (ECs) are known to persist in surface waters, and create pressure on wastewater treatment works (WWTW) for their effective removal. Although a large database for the levels of these pollutants in water systems exist globally, there is still a lack in the correlation of the levels of these pollutants with possible long-term adverse health effects in wildlife and humans, such as endocrine disruption. The current study detected a total of 55 ECs in WWTW influent surface water, 41 ECs in effluent, and 40 ECs in environmental waters located upstream and downstream of the plant. A list of ECs persisted through the WWTW process, with 28% of all detected ECs removed by less than 50%, and 18% of all ECs were removed by less than 25%. Negative mass balances of some pharmaceuticals and metabolites were observed within the WWTW, suggesting possible back-transformation of ECs during wastewater treatment. Three parental illicit drug compounds were detected within the influent of the WWTW, with concentrations ranging between 27.6 and 147.0 ng L−1 for cocaine, 35.6–120.6 ng L−1 for mephedrone, and 270.9–450.2 ng L−1 for methamphetamine. The related environmental risks are also discussed for some ECs, with particular reference to their ability to disrupt endocrine systems. The current study propose the potential of the pharmaceuticals carbamazepine, naproxen, diclofenac and ibuprofen to be regarded as priority ECs for environmental monitoring due to their regular detection and persistence in environmental waters and their possible contribution towards adverse health effects in humans and wildlife

Identification of synergistic interactions among microorganisms in biofilms by digital image analysis

Digital image analysis showed that reductions in biofilm plating efficiency were due to the loss of protection provided by two benzoate-degrading strains of Pseudomonas fluorescens. This loss in protection was due to the spatial separation of the protective organisms from benzoate-sensitive organisms during the dilution process. Communities were cultivated in flow cells irrigated with trypticase soy broth. When the effluent from these flow cells was plated on 0.15% benzoic acid, satellite colonies formed only in the vicinity of primary colonies. A digital image analysis procedure was developed to measure the size and spatial distribution of these satellites as a function of distance from the primary colony. The size of satellites served as a measure of growth, and the number per unit area served as a measure of survival. At the three dilutions tested, the size and concentration of satellite colonies varied inversely with distance from the primary colonies. When these measurements were plotted, the slopes were used to quantify the effect of bacterial association on the growth and survivability of the satellites. In the absence of the primary colonies, satellites grew in axenic culture only at low benzoate concentrations. Thus benzoate-degrading organisms are capable of creating a protective microenvironment for other members of biofilm communities

A flow cell simulating a subsurface rock fracture for investigations of groundwater-derived biofilms

Laboratory scale continuous-flow-through chambers (flow cells) facilitate the observation of microbes in a controlled, fully hydrated environment, although these systems often do not simulate the environmental conditions under which microorganisms are found. We developed a flow cell that mimics a subsurface groundwater-saturated rock fracture and isamenable to confocal laser scanning microscopy while allowing for the simple removal of the attached biomass. This flow cell was used to investigate the effect of toluene, a representative contaminant for non-aqueous phase liquids, on groundwater-derived biofilms. Reduced average biofilm biomass and thickness, and diminished diversity of amplifiable 16S rRNA sequences were observed for biofilms that developed in the presence of toluene, compared to the biofilms grown in the absence of toluene. The flow cell also allowed the detection of fluorescent protein-labelled cells

Molecular detection and characterisation of mumps virus in cerebrospinal fluid in a Gauteng laboratory

The study aimed to determine the presence of mumps virus (MuV) in cerebrospinal fluid (CSF) specimens and to genetically characterise detected MuV strains. A real-time reverse transcription-polymerase chain reaction (RT-PCR) was used to detect the MuV F gene, and characterisation was performed by sequencing of the SH gene. Mumps virus was detected in 1.2% (3/260) of specimens. Phylogenetic analysis of one MuV strain revealed that it clustered with the Jeryl-Lynn and RIT4385 vaccine strains. As far as the authors could ascertain this is the first study to provide viral proof that these vaccine-like strains may be associated with aseptic meningitis.The information contained in this article was presented by Marieke Brauer at the UNIPATH 2014 conference, held on 19-21 September 2014 at the CSIR Convention Centre in Pretoria (no abstract number available).http://www.sajei.co.za/index.php/SAJEIam2016Medical Virolog

DECREASE IN NUMBERS OF THE EASTERN ROCKHOPPER PENGUIN EUDYPTES CHRYSOCOME FILHOLI AT MARION ISLAND, 1994/95–2002/03

The number of eastern rockhopper penguins Eudyptes chrysocome filholi breeding at subantarctic Marion Island decreased from about 173 000 pairs in 1994/95 to about 67 000 pairs in 2001/02. During 1994/95–2002/03 pairs fledged on average 0.40 chicks per year, an amount thought insufficient to balance mortality of breeding adults, and there was a decrease in the mass at arrival at breeding colonies of both males and females. Except in 1997/98, the mass of chicks at fledging was less than that recorded at two other localities. These factors suggest an inadequate supply of food for rockhopper penguins at Marion Island. Decreases of rockhopper penguins at several other localities also have been attributed to inadequate food. Rockhopper penguins at Marion Island continued to feed mainly on crustaceans during chick rearing. There was a marked increase in the contribution of fish to the diet in 1999/00 that coincided with an increase in mass at arrival at colonies of both males and females. Trends in numbers of pairs breeding in different sections of Marion Island were not always consistent, indicating the need for island-wide monitoring to establish the overall trend. Afr. J. mar. Sci. 25: 487–49

POPULATION AND BREEDING OF THE GENTOO PENGUIN PYGOSCELIS PAPUA AT MARION ISLAND, 1994/95–2002/03

The numbers of gentoo penguins Pygoscelis papua breeding at subantarctic Marion Island fell by 40&#37 from 1994/95 to 2002/03, from 1 352 pairs to 806 pairs. Apart from a slight increase in 1998/99, there was a steady decrease in numbers breeding between 1995/96 and 2000/01, when the population stabilized. There is indication that in some years not all breeders nested and that some birds relocated to another colony after disturbance. From first clutches, pairs on average fledged between 0.01 chicks in 1997/98 and 0.58 chicks in 2002/03 (mean 0.38 &#177 0.21). In 1994/95, replacement clutches increased the overall production of fledged chicks by 11&#37. Based on demographic parameters measured at other localities, the production of chicks at Marion Island was inadequate to maintain the population during the period 1995/96–2000/01. Consistency in trends in breeding success at five colonies suggests that factors operating at a mesoscale, rather than those specific to particular colonies, often influenced breeding success. Laying was later than normal in 1997/98, when there was almost total breeding failure with large losses of eggs and small chicks to returning Subantarctic skuas Catharacta antarctica. Future research on this Near Threatened species at Marion Island must take full account of its susceptibility to human disturbance.Afr. J. mar. Sci. 25: 463–47