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  • 1
    In: Journal of Apicultural Science, Walter de Gruyter GmbH, Vol. 58, No. 2 ( 2014-12-1), p. 107-132
    Abstract: Explaining the reasons for the increased mortality of the honey bee (Apis mellifera L.) in recent years, in Europe and North America, has become a global research priority in apicultural science. Our project was aimed at determining the relationship between environmental conditions, beekeeping techniques, the epidemiological situation of pathogens, and the mortality rate of bee colonies. Dead bee samples were collected by beekeepers from 2421 colonies. The samples were examined for the presence of V. destructor, Nosema spp. (Nosema apis and Nosema ceranae), chronic bee paralysis virus (CBPV), acute bee paralysis virus (ABPV), deformed wing virus (DWV), and Israeli acute paralysis virus (IAPV). Among the environmental and colony management factors under analysis, significant differences between apiaries with high ( 〉 10%), low (≤10%) or no losses of the colonies were only found in the case of the methods used by beekeepers to combat varroa mites. However, the epidemiological patterns in the case of V. destructor infestation and the DWV and ABPV infections highly differed. The data we obtained indicated that co-infections play a decisive role in the etiology of the significant collapse of colonies in apiaries in Poland. The main reason for this phenomenon can be described as strong infestation with V. destructor, followed by an intensive development of viral infections caused by DWV and (much less frequently) by ABPV. Despite a high prevalence of Nosema spp. microsporidia (with a dominant incidence of N. ceranae), a direct relationship between these parasites and the mortality rate of colonies was not proved.
    Type of Medium: Online Resource
    ISSN: 2299-4831
    Language: English
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2014
    detail.hit.zdb_id: 2814222-6
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  • 2
    In: ICES Journal of Marine Science, Oxford University Press (OUP), Vol. 71, No. 8 ( 2014-10-01), p. 2208-2220
    Abstract: The ability of management strategies to achieve the fishery management goals are impacted by environmental variation and, therefore, also by global climate change. Management strategies can be modified to use environmental data using the “dynamic B0” concept, and changing the set of years used to define biomass reference points. Two approaches have been developed to apply management strategy evaluation to evaluate the impact of environmental variation on the performance of management strategies. The “mechanistic approach” estimates the relationship between the environment and elements of the population dynamics of the fished species and makes predictions for population trends using the outputs from global climate models. In contrast, the “empirical approach” examines possible broad scenarios without explicitly identifying mechanisms. Many reviewed studies have found that modifying management strategies to include environmental factors does not improve the ability to achieve management goals much, if at all, and only if the manner in which these factors drive the system is well known. As such, until the skill of stock projection models improves, it seems more appropriate to consider the implications of plausible broad forecasts related to how biological parameters may change in the future as a way to assess the robustness of management strategies, rather than attempting specific predictions per se.
    Type of Medium: Online Resource
    ISSN: 1095-9289 , 1054-3139
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2014
    detail.hit.zdb_id: 2463178-4
    detail.hit.zdb_id: 1468003-8
    detail.hit.zdb_id: 29056-7
    SSG: 12
    SSG: 21,3
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  • 3
    Online Resource
    Online Resource
    Hindawi Limited ; 2014
    In:  The Scientific World Journal Vol. 2014 ( 2014), p. 1-23
    In: The Scientific World Journal, Hindawi Limited, Vol. 2014 ( 2014), p. 1-23
    Abstract: Global warming and climate changes created by large scale emissions of greenhouse gases are a worldwide concern. Due to this, the issue of green supply chain management has received more attention in the last decade. In this study, a closed-loop logistic concept which serves the purposes of recycling, reuse, and recovery required in a green supply chain is applied to integrate the environmental issues into a traditional logistic system. Here, we formulate a comprehensive closed-loop model for the logistics planning considering profitability and ecological goals. In this way, we can achieve the ecological goal reducing the overall amount of CO 2 emitted from journeys. Moreover, the profitability criterion can be supported in the cyclic network with the minimum costs and maximum service level. We apply three scenarios and develop problem formulations for each scenario corresponding to the specified regulations and investigate the effect of the regulation on the preferred transport mode and the emissions. To validate the models, some numerical experiments are worked out and a comparative analysis is investigated.
    Type of Medium: Online Resource
    ISSN: 2356-6140 , 1537-744X
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2014
    detail.hit.zdb_id: 2075968-X
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  • 4
    Online Resource
    Online Resource
    CSIRO Publishing ; 2014
    In:  The APPEA Journal Vol. 54, No. 1 ( 2014), p. 11-
    In: The APPEA Journal, CSIRO Publishing, Vol. 54, No. 1 ( 2014), p. 11-
    Abstract: In 2013, the Wealth from Oceans Flagship of the Commonwealth Science and Industrial Research Organisation (CSIRO) started a new research strategy in environmental sciences to support the future needs of the offshore oil and gas industry, regulatory agencies, and the oil spill response community. Using its world class laboratory facilities and research vessels, CSIRO intends to further apply its scientific expertise in the Australasian region towards the assessment and mitigation of environmental risks related to offshore oil and gas development and accidental oil spills. This paper provides an overview of ongoing and planned research activities by CSIRO in collaboration with academia, the private sector and other government agencies to ensure the protection and sustainability of Australia’s marine resources. The program includes the conduct of integrated environmental baseline studies, the development of improved protocols for environmental effects monitoring (EEM) of operational waste discharges (e.g., drilling muds/fluids and production waters), and the application of risk assessment protocols in support of ecosystem-based management. In support of oil spill response operations, the program will also develop remediation technologies and systems to detect and model the fate and transport of contaminant hydrocarbons in the marine environment. Project deliverables of this research, which integrate operational and scientific monitoring efforts with evaluation of oil spill response technologies, will result in new equipment and standard methods that will be used by the oil industry on a global scale to reduce the cost and time spent on monitoring programs while enhancing capability, response readiness and capacity.
    Type of Medium: Online Resource
    ISSN: 1326-4966
    Language: English
    Publisher: CSIRO Publishing
    Publication Date: 2014
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  • 5
    Online Resource
    Online Resource
    Science Publishing Corporation ; 2014
    In:  International Journal of Engineering & Technology Vol. 4, No. 1 ( 2014-12-24), p. 20-
    In: International Journal of Engineering & Technology, Science Publishing Corporation, Vol. 4, No. 1 ( 2014-12-24), p. 20-
    Abstract: Evaluating traffic networks is vital for the management of traffic systems. Nowadays, Global Positioning System (GPS) technology, by independent GPS devices or GPS enabled cellular phones, is properly used in most vehicles, especially on urban streets, due to its cost effectiveness, ease of use, and real-time services. With its ability to detect the time position of the floating car, GPS devices introduces a new prospective to gather vehicle information. Collected information can be utilized for traffic management and for Intelligent Transportation System (ITS) to deduce evaluation indicators, and to achieve suitable measures. This paper brings up a framework for using real-time data collected by GPS-floating car technique for evaluating traffic conditions on urban streets. It utilizes GPS data of time, longitude, latitude to estimate evaluation indicators of street segments. This incorporates operational evaluation of street segment by characterizing Level of Service and level of congestion, and incorporates environmental evaluation by estimating the road-side concentration of pollutants emitted by traffic. Framework formation has been described. Different models used within every step of the framework have been investigated. Including models used in GPS data sample analysis, through models used to identify of street segments, and finally models used for street segments evaluation.
    Type of Medium: Online Resource
    ISSN: 2227-524X
    URL: Issue
    Language: Unknown
    Publisher: Science Publishing Corporation
    Publication Date: 2014
    detail.hit.zdb_id: 2661563-0
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  • 6
    Online Resource
    Online Resource
    Emerald ; 2014
    In:  European Journal of Training and Development Vol. 38, No. 5 ( 2014-5-27), p. 387-397
    In: European Journal of Training and Development, Emerald, Vol. 38, No. 5 ( 2014-5-27), p. 387-397
    Abstract: – This study aims to make sense of global warming. Using the concept of design science (as distinct from explanatory science) and by drawing on recent debates in management and organization studies, the study considers whether the principal mission of human resource development (HRD) research should be to design and develop actionable knowledge that practitioners in organizations can use to solve their pressing field problems. By way of illustration, it poses the question of whether HRD research, in terms of design science principles, can offer solutions to one of the most pressing problems confronting humanity, i.e. global warming. Design/methodology/approach – The study does this from the perspective of dual process theories of human cognition in discussing the arguments presented by various researchers that experiential/intuitive modes of sensemaking are more likely to mobilize effective pro-environmental behaviours than are the traditional rational/analytical modes of sensemaking employed in many HRD and educational interventions and programmes. Findings – An inference that may be drawn is that HRD research may be better positioned not as an academic discipline nor as subordinate or superordinate to human resource management, but rather as an emergent solution-oriented “design science”. Originality/value – The study uses design science perspective for HRD.
    Type of Medium: Online Resource
    ISSN: 2046-9012
    Language: English
    Publisher: Emerald
    Publication Date: 2014
    detail.hit.zdb_id: 2697301-7
    SSG: 3,2
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  • 7
    Online Resource
    Online Resource
    Cambridge University Press (CUP) ; 2014
    In:  The Journal of Agricultural Science Vol. 152, No. S1 ( 2014-12), p. 9-19
    In: The Journal of Agricultural Science, Cambridge University Press (CUP), Vol. 152, No. S1 ( 2014-12), p. 9-19
    Abstract: Current production systems for crops, meat, dairy and bioenergy in the European Union (EU) rely strongly on the external input of nitrogen (N). These systems show a high productivity per unit of land. However, the drawback is a complex web of N pollution problems contributing in a major way to degradation of ecosystems. European Union Directives and national policies have improved nutrient management and reduced fertilizer N use in most European countries, which has curbed the N pollution trends particularly in regions with high stocking rates of animals. However, improvement is slowing down and environmental targets for N are not within reach. Building on the 2011 European Nitrogen Assessment, the current paper reviews key features of the complex relationships between N use and food production in Europe in order to develop novel options for a more N-efficient, less N-polluting and secure European food system. One option is to relocate feed and livestock production from Northwestern to Central and Eastern Europe. This would allow a reduction of N rates and N pollution in cereal production in Northwest Europe by 30% (50 kg N/ha), while increasing total cereal production in Europe. Another option is a change towards legume-based cropping systems to produce animal feed, in order to decrease dependence on N fertilizer and feed imports. The greatest challenge for Europe is to decrease the demand for feed commodities, and thus for land and N, by a shift to more balanced (and healthier) diets with less animal protein. These drastic changes can be stimulated by targeted public–private research funding, while the actual implementation can be enhanced by smart payment schemes using, for example money from the Common Agricultural Policy, certification and agreements between stakeholders and players in the food and energy chain. Involving networks of consumers, producers and non-governmental organizations is critical. An effective strategy starts with convincing consumers with a Western diet to eat less meat and dairy by communicating the associated health benefits and smaller ecological footprints. Internalizing the cost of N pollution leading to increased prices for N-intensive food products may also enhance involvement of consumers and provide financial resources to compensate farmers for loss of income and extra costs for stricter N measures.
    Type of Medium: Online Resource
    ISSN: 0021-8596 , 1469-5146
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 2014
    detail.hit.zdb_id: 1498349-7
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  • 8
    Online Resource
    Online Resource
    Academy of Science of South Africa ; 2014
    In:  South African Journal of Science Vol. 110, No. 5/6 ( 2014-05-28), p. 11-
    In: South African Journal of Science, Academy of Science of South Africa, Vol. 110, No. 5/6 ( 2014-05-28), p. 11-
    Abstract: Freshwater resources in South Africa are under severe pressure from existing anthropogenic impacts and global climate change is likely to exacerbate this stress. This review outlines the abiotic drivers of climate change, focusing on predicted changes in temperature and precipitation. The consequences of global climate change for freshwater ecosystems are reviewed, with effects grouped into those related to water quantity, water quality, habitat and aquatic biological assemblages. Several guiding principles aimed at minimising the potential impact of climate change on freshwater ecosystems are discussed. These guidelines include those focused on water quantity and the maintenance of appropriate environmental flows, integration of global climate change into water quality management, conservation planning for freshwater biodiversity, the promotion of ecosystem resilience, and extending climate change science into policy and public discourse. Proactive assessment and monitoring are seen as key as these will allow for the identification of ecological triggers and thresholds, including thresholds of vulnerability, which may be used to monitor and inform decisions, as well as to improve the ability to forecast based on this knowledge.
    Type of Medium: Online Resource
    ISSN: 1996-7489
    Language: Unknown
    Publisher: Academy of Science of South Africa
    Publication Date: 2014
    detail.hit.zdb_id: 2067033-3
    detail.hit.zdb_id: 2482725-3
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  • 9
    Online Resource
    Online Resource
    Academy of Science of South Africa ; 2014
    In:  South African Journal of Science Vol. 110, No. 7/8 ( 2014-07-22), p. 12-
    In: South African Journal of Science, Academy of Science of South Africa, Vol. 110, No. 7/8 ( 2014-07-22), p. 12-
    Abstract: Biological invasions are a growing problem worldwide. In 2004, the South African Department of Science and Technology, through the National Research Foundation, established a Centre of Excellence for Invasion Biology, with the primary goal of providing scientific understanding and building capacity in the field of biological invasions. South Africa is an extraordinary natural laboratory for the study of biological invasions, and the Centre for Invasion Biology (C·I·B) has capitalised on this situation. During its first decade, the C·I·B generated over 800 publications, and produced almost 200 graduates at honours, master’s and doctoral levels. The C·I·B has therefore made a considerable contribution to building human capacity in the field of biological invasions. Substantial advances have been made in all aspects of invasion science, which is not limited to biology and ecology, but includes history, sociology, economics and management. The knowledge generated by the C·I·B has been used to inform policy and improve management practices at national and local levels. The C·I·B has emerged as a leading institute in the global field of invasion biology, with several unique features that differentiate it from similar research institutes elsewhere. These features include a broad research focus that embraces environmental, social and economic facets, leading to a diverse research programme that has produced many integrated products; an extensive network of researchers with diverse interests, spread over a wide geographical range; and the production of policy- and management-relevant research products arising from the engaged nature of research conducted by the C∙I∙B.
    Type of Medium: Online Resource
    ISSN: 1996-7489
    Language: Unknown
    Publisher: Academy of Science of South Africa
    Publication Date: 2014
    detail.hit.zdb_id: 2067033-3
    detail.hit.zdb_id: 2482725-3
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  • 10
    Online Resource
    Online Resource
    Wiley ; 2014
    In:  European Journal of Soil Science Vol. 65, No. 4 ( 2014-07), p. 573-583
    In: European Journal of Soil Science, Wiley, Vol. 65, No. 4 ( 2014-07), p. 573-583
    Abstract: Agriculture significantly contributes to global greenhouse gas ( GHG ) emissions and there is a need to develop effective mitigation strategies. The efficacy of methods to reduce GHG fluxes from agricultural soils can be affected by a range of interacting management and environmental factors. Uniquely, we used the Taguchi experimental design methodology to rank the relative importance of six factors known to affect the emission of GHG from soil: nitrate ( NO 3 − ) addition, carbon quality (labile and non‐labile C), soil temperature, water‐filled pore space ( WFPS ) and extent of soil compaction. Grassland soil was incubated in jars where selected factors, considered at two or three amounts within the experimental range, were combined in an orthogonal array to determine the importance and interactions between factors with a L 16 design, comprising 16 experimental units. Within this L 16 design, 216 combinations of the full factorial experimental design were represented. Headspace nitrous oxide ( N 2 O ), methane ( CH 4 ) and carbon dioxide ( CO 2 ) concentrations were measured and used to calculate fluxes. Results found for the relative influence of factors ( WFPS and NO 3 − addition were the main factors affecting N 2 O fluxes, whilst glucose, NO 3 − and soil temperature were the main factors affecting CO 2 and CH 4 fluxes) were consistent with those already well documented. Interactions between factors were also studied and results showed that factors with little individual influence became more influential in combination. The proposed methodology offers new possibilities for GHG researchers to study interactions between influential factors and address the optimized sets of conditions to reduce GHG emissions in agro‐ecosystems, while reducing the number of experimental units required compared with conventional experimental procedures that adjust one variable at a time.
    Type of Medium: Online Resource
    ISSN: 1351-0754 , 1365-2389
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2014
    detail.hit.zdb_id: 240830-2
    detail.hit.zdb_id: 2020243-X
    detail.hit.zdb_id: 1191614-X
    SSG: 13
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