84 research outputs found

    Comparison of Approaches to Management of Large Marine Areas

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    In order to learn more about the different approaches to managing large-scale marine areas, their comparative merits, and the synergies and overlaps between them, Conservation International (CI) commissioned this independent analysis of several widely applied models. Since 2004, CI, together with a multitude of partners, has been developing the Seascapes model to manage large, multiple-use marine areas in which government authorities, private organizations, and other stakeholders cooperate to conserve the diversity and abundance of marine life and to promote human well-being. The definition of the Seascapes approach and the identification of the essential elements of a functioning Seascape were built from the ground up, informed by the extensive field experience of numerous marine management practitioners. Although the report was commissioned by CI, the views expressed in this report are those of the authors; they were charged with providing a critical examination of all the assessed approaches, including the Seascapes approach. This analysis provides a comprehensive understanding of the strengths and weaknesses of each approach. This will help us -- and, we hope, other readers -- to identify ways to work together to achieve even greater results through synergistic efforts

    Participation, activity performance and task supports of cerebral palsied children aged between 4 and 12 years in mainstream schooling environments in Gauteng

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    A research report submitted to the Faculty of Health Sciences, University of the Witwatersrand, in partial fulfilment for the degree of Master of Science in Physiotherapy. Johannesburg 2014The incidence of cerebral palsy has remained relatively constant over time. As medical technology advances survival rates of children born prematurely increase. The trend internationally and in South Africa, is to encourage the integration of children with cerebral palsy into society and to embrace and celebrate diversity. This extends to education, where children with cerebral palsy are increasingly being included into mainstream schooling environments. This is not a simple process as cerebral palsy is extremely diverse in presentation and consists of a number of associated conditions other than the well recognised physical impairments. This has a significant effect on children’s ability to participate and be included in mainstream environments. The process therefore requires careful monitoring in order to provide the relevant support and to make changes to the environment The main aim of the study was to establish participation, activity performance and task supports of children aged between four and 12 years in mainstream schooling environments in Gauteng, South Africa. This was then related to the child’s level of impairment. The School Function Assessment was used to establish the participation, task supports and activity performance of the children with cerebral palsy. The scores of this group were then compared to the scores of the typical population as set out in the user’s manual of the School Function Assessment. The Gross Motor Function Classification System was used to classify the children with cerebral palsy according to their level of impairment. The results of the School Function Assessment were then analysed according to Gross Motor Function Classification level. The results of the study demonstrate that children with cerebral palsy score lower on a number of aspects of the School Function Assessment when compared to typical students their age. This was particularly true of physical tasks. Children with cerebral palsy in this study generally functioned on a level below that of their typically developed peers with regards to physical tasks in and around the school environment. Children with cerebral palsy performed at or above the level of their typically developed peers with regard to cognitive/behavioural school activities. As the severity of motor impairment increased, children’s ability to participate in the school environment decreased, the amount of task assistance and adaptations required increased and their ability to consistently perform activities decreased

    News from Academy Bay

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    New Faces and New Projects in a New CDRS Department. International Workshop: Feral Goat Eradication Program. Geologists to Invade GalĂĄpagos. GIS in GalĂĄpagos. The Isabela Project: Off and Running. A Pig-Free Santiago: Is it a Dream or on the Horizon? The Special Law for GalĂĄpagos

    Caulerpa chemnitzia in Darwin threatening Galapagos coral reefs

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    Coral reefs are rare in the Galapagos and there is concern that, like in many areas around the world, they may be degrading due to increasing anthropogenic pressure, which can cause changes and reorganizations of structure and function with associated phase shifts. Algae of the genus Caulerpa J.V. Lamouroux, 1809 are known as widespread and persistent marine invaders. They grow rapidly, particularly in disturbed areas where they can opportunistically monopolize substratum and compete with native species, thus reducing biodiversity. Caulerpa chemnitzia increased in abundance and overgrew corals on the reef since 2012, ultimately raising fears that a phase-shift from coral to algae might be imminent. However, from 2019 onwards algae populations strongly contracted and while not having returned to baseline level, there is currently low risk of corals being displaced. Visual censuses were conducted on a yearly basis since 2004 using sample quadrats (0.5 x 0.5m) every 5 m along a 50-m-long transects at a depth of 6–15 m at 5 permanent subtidal ecological monitoring sites around Darwin. In addition, 10 m photo-transects were taken using a graduated meter-long measuring stick in the centre of the frame in 2012, 2014, 2016, 2017, 2018 and 2021 at a depth of 15m at Wellington reef. The authors hypothesize that this species could have expanded its distribution over Wellington Reef because of its known morphological plasticity due to a response to change in the environment, in this case high temperature and low nutrients. As ENSO events are predicted to increase in intensity and frequency due to the impact of climate change it is important to develop and implement a functional alert system. Early Detection Rapid Response (EDRR) protocols are recommended to avoid climate driven Non-Indigenous Species (NIS) entering the GMR or for native species becoming invasive due to warming-related phase shifts

    Magnesia-Based Cements: A Journey of 150 Years, and Cements for the Future?

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    This review examines the detailed chemical insights that have been generated through 150 years of work worldwide on magnesium-based inorganic cements, with a focus on both scientific and patent literature. Magnesium carbonate, phosphate, silicate-hydrate, and oxysalt (both chloride and sulfate) cements are all assessed. Many such cements are ideally suited to specialist applications in precast construction, road repair, and other fields including nuclear waste immobilization. The majority of MgO-based cements are more costly to produce than Portland cement because of the relatively high cost of reactive sources of MgO and do not have a sufficiently high internal pH to passivate mild steel reinforcing bars. This precludes MgO-based cements from providing a large-scale replacement for Portland cement in the production of steel-reinforced concretes for civil engineering applications, despite the potential for CO2 emissions reductions offered by some such systems. Nonetheless, in uses that do not require steel reinforcement, and in locations where the MgO can be sourced at a competitive price, a detailed understanding of these systems enables their specification, design, and selection as advanced engineering materials with a strongly defined chemical basis

    Destructive fishing : an expert‐driven definition and exploration of this quasi‐concept

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    Numerous policy and international frameworks consider that “destructive fishing” hampers efforts to reach sustainability goals. Though ubiquitous, “destructive fishing” is undefined and therefore currently immeasurable. Here we propose a definition developed through expert consultation: “Destructive fishing is any fishing practice that causes irrecoverable habitat degradation, or which causes significant adverse environmental impacts, results in long-term declines in target or nontarget species beyond biologically safe limits and has negative livelihood impacts.” We show strong stakeholder support for a definition, consensus on many biological and ecological dimensions, and no clustering of respondents from different sectors. Our consensus definition is a significant step toward defining sustainable fisheries goals and will help interpret and implement global political commitments which utilize the term “destructive fishing.” Our definition and results will help reinforce the Food and Agricultural Organization's Code of Conduct and meaningfully support member countries to prohibit destructive fishing practices

    The Political Economy of Agri-Environmental Policies in the US and EU

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