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Hållbar avfallshantering : Ur ett ekonomiskt- och miljöperspektivSeweling, Linnea January 2014 (has links)
Economy and environment has for a long time been studied separately and seen as incompatible. With a growing society and increasing pressure on environmental issues the need of a new economy with the environment included is necessary. This study examine if European Union´s picture of the waste hierarchy match the reality. Since the purpose with the waste hierarchy is to benefit environmental and economy. A survey was made over Käppalaförbundets waste from 2013, to see where the waste falls in the waste hierarchy. The results shows that the waste falls on those steps that are favorable to the environment and the economy, but the environment aspect can be improved if some of the waste switch to a different step in the waste hierarchy. Better statistics on some waste areas is also necessary to get a result that is more certain. The conclusion in this study is that European Union´s picture of the waste hierarchy match the reality to a certain extent but in order to achieve sustainable development in the long run, several measures need to be taken.
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With or Without the "Divine Spark": Animalised Humans and the Human-Animal Divide in Charles Dickens's NovelsGraah-Hagelbäck, Katarina January 2014 (has links)
Animals appear in many guises in Charles Dickens’s novels, as wild animals, domestic animals, animals used in the service of humans, and, not least, as images and symbols. Based on a close reading of all of Dickens’s major novels, this thesis centres on the symbolic use of (both metaphorical and actual) animals in the depiction of human characters, the chief aim being to explore a phenomenon that Dickens frequently resorts to, namely, the animalisation of human characters. Certain Dickensian characters are in fact more or less consistently compared to animals – to animals in general, or to specific animals. On occasion, not only individual characters but also groups of characters are animalised, and sometimes to the point of dehumanisation. By and large, being animalised equals being portrayed in a negative light, as if what Dickens himself at one point termed “the divine spark” – the special light accorded to the human brain as opposed to the animal brain – has been extinguished or has at least become almost imperceptible. Furthermore, in conjunction with the investigation of Dickens’s animalisation of human characters, the thesis discusses his implicit attitude to the human-animal divide and argues that, though largely anthropocentric and hierarchical, it also points to a view of human and nonhuman animals as part of a continuum, with no fixed boundaries. A number of different approaches inform the discussion, but theoretical frameworks such as ecocriticism and, above all, contemporary theory on the significance of Darwin’s ideas in the Victorian era, are foregrounded.
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Status i grupphierarkin : om barns sociala interaktionerSamuelsson, Mikael January 2013 (has links)
In this study the author attempts to identify factors that are determinants for why some pupils in Swedish grade school have high status in comparison with their peers. The study takes on the characteristics of both an ethnographic and a literature study by comparing the findings of interviews carried out with students of a first grade class with previous research. The study identify several tools for analyzing of how status may be understood in specific situations.The study also finds that important factors for gaining high status amongst children in aschool classes might be the ability to apply access strategies to get accepted in social interactions, such as game play, have the ability to create games that are enjoyed by peers and social skills, to name a few. Overall the study shows that children's game play with each otherare crucial for their social interactions and their social position. The study also show that children that have earlier established relationships with other children in a specific group alsohave a better opportunity to establish a high status position.
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Avfallshantering på byggarbetsplatser : Potential för en miljöeffektiv avfallshanteringKarlsson, Andreas January 2013 (has links)
This thesis concerns waste management on construction sites and was conducted on behalf of ICA Fastigheter. Areas of concern: How can an environmentally-efficient waste management system on construction sites be defined? What potential exists for exploiting the waste resources that are generated? How can the waste management be optimised by reducing the quantity of waste and by optimal sorting? How can the client of a project influence the waste management? The purpose of the work was to investigate sustainable waste management in the building and construction sector and to highlight waste as a resource from an environmental and economic perspective.The aim of the work was to define an environmentally-efficient waste management system, to analyse the potential that exists in waste management and to draw up guidelines for optimal waste management.The method consisted of a literature study, two visits to construction sites and four interviews.An environmentally-efficient waste management system means that the waste is managed in the following order of priority: Prevention Reuse Recycling Energy recovery Landfill The prevention of waste is an important area that has not been adequately explored by the building and construction industry. The quantities of waste could decrease with the implementation of measures such as ordering materials in the dimensions required, prefabricated components, logistics centres with Just-In-Time deliveries, less and improved packaging and less wrapping. The reuse of waste materials and temporary apparatus as well as the use of a return pallet system are examples of reuse that reduces the quantities of waste. In most cases the source sorting work is a matter of course and the proportion going to landfill is down at a low level. The source sorting can be optimised by sorting all materials that can be reused and recycled to use them as a resource. The client of a project has great opportunities to influence the waste management in a sustainable direction by placing demands on the contractor. Demands can be placed on measures to reduce the quantities of waste, on a specific level of source sorting and on the reporting and monitoring of statistics.
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Minimization of jitter in SDH/SONET networks via an all-digital desynchronizerAutry, Chris Brian 08 1900 (has links)
No description available.
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Ecological connectivity in braided riverscapesGray, Duncan Peter January 2010 (has links)
Rivers are hierarchical networks that integrate both large and small scale processes within catchments. They are highly influenced by variation in flow and are characterised by strong longitudinal movement of materials. I conducted an extensive literature review that indicated braided rivers lie at the upper end of the river complexity gradient due to the addition of strong lateral and vertical connectivity with their floodplains. The management of these rivers requires an understanding of the connective linkages that drive complexity, however in developed regions few braided river systems remain intact. The large number of relatively pristine braided rivers in New Zealand provided a unique opportunity to study physical and biotic patterns in these large dynamic systems. Initially I examined horizontal connectivity through patterns in regional and local diversity in eleven braided rivers in the North and South islands of New Zealand. Subsequently, the next component of my thesis focused on vertical connectivity through intensive investigations of energy pathways and the recipient spring stream food-webs.
The eleven river survey included sampling of multiple reaches and habitats (main channels, side braids, spring sources, spring streams and ponds) and confirmed the importance of lateral habitats to invertebrate diversity. However, I found that large spatial scales made a greater contribution to diversity than small scales, such that major differences occurred between rivers rather than habitats. This result suggested either a role for catchment-scale factors, such as flow, or biogeographic patterning. Subsequent analysis of the relationships between invertebrate diversity and the physical environment indicated strong regulation by flow variability, but also biogeographic community patterns. Braided rivers are clearly disturbance dominated ecosystems, however the effects of disturbance are manifest in different ways across the riverscape.
The role of vertical hydrological connectivity in linking the different components of the floodplain was investigated by tracing carbon pathways from the terrestrial floodplain to spring-fed streams and their communities. Using δ13C isotope signatures it was possible to show that inorganic carbon in groundwater was derived from terrestrial vegetation and subsequently incorporated into spring stream food-webs. However, the degree to which a stream community uses groundwater as opposed to allochthonous carbon is affected by the successional stage of riparian vegetation, a function of the shifting habitat mosaic that is regulated primarily by flow variation and sediment dynamics. In summary, the structure of braided river ecosystems is regulated primarily at the catchment scale, but connectivity at smaller scales plays an important role in determining ecological structure and function.
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Risk Control in ERP Implementations: The flow-on effect of prior decision making in the control of risks for Project ManagersVanderklei, Mark Wynyard January 2013 (has links)
Enterprise Resource Planning (ERP) systems have been in existence for over 2 decades yet businesses are still losing billions of dollars annually in the implementation of software designed to reduce costs and increase profitability. The inability to manage risks is an area that contributes to these losses, specifically due to uncertain outcomes when dealing with an interconnected construct such as risk, and a research gap at the tactical and operational levels between risks and controls.
A comparative case study approach, encompassing 12 different organisations was adopted to explore emerging patterns at the project implementation level, and from this three contributions emerged. After observing risks behaving in a hierarchical fashion with predictable results, Hierarchy of Risk models representing different implementation stages were constructed. Although these models are still in their formative stages, it may prove useful in furthering our understanding of the close inter-relationship between different risks, where they occur in ERP implementations and the implications of managerial choice when determining risk prioritisation. A second finding is that no direct linear relationship appears to exist between risks and controls. Rather, this counter-intuitive finding suggests that it is additional factors including risk categories, implementation stages, prior control decision making and the hierarchical flow-on effect of impacts as a consequence of identified risks. Finally, by combining the Hierarchy of Risk models and the risk-to-impact-to-control relationship, a method of reverse engineering portfolios of control was discovered. This potentially offers an explanation as to how portfolios of control can be constructed, and why they are essential in ERP implementations.
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Tätortsklassificering utifrån servicebredd och servicegrad : En klusteranalys av Sveriges tätorterAndersson, Stina-Kajsa January 2014 (has links)
Statistics Sweden is an administrative agency that delimits built-up areas and produces statistics regarding them. The statistics provide information about the area of the built-up areas, their population number, number of gainfully employees working in the built-up areas, and of buildings. Now Statistics Sweden wishes to extend such statistics by producing a measure regarding how well developed the service is in each built-up area. This study is a contribution to this statistical improvement work and the purpose is to – by employing geographical information systems and cluster analysis – classify the Swedish built-up areas according to 1) service width and 2) service degree. A particular built-up area has a high service width if it has many different service functions, such as pharmacies, schools and grocery stores. It has a high service degree if it has many service functions per 1000 inhabitants. The result consists of two different “urban hierarchies”, one in which one can identify the level of service width of each built-up area and one in which one can position each built-up area according to its service degree. This study shows that built-up areas with a high service width also have manyinhabitants. In contrast, this is not the case for built-up areas with a high service degree: built-up areas with high service degree have relatively few inhabitants. The study shows that built-up areas with high service degree have a higher quota number of people employed in the locality / number of residents, which indicates that these built-up areas are “commuting localities” – built-up areas where people work but not necessarily live. The results from the two separate modes of classification also show that the service width and service degree do not display a positive correlation. Built-up areas with high service degree are thus not the same built-up areas that those scoring high onservice width; if anything, the relationship is rather the opposite.
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Seeking Structure in Social Organization: Compensatory Control and the Psychological Advantages of HierarchyFriesen, Justin 10 September 2013 (has links)
Hierarchies are a ubiquitous form of human social organization. I hypothesized that one reason for hierarchies’ prevalence might be that core motivational needs for order and control make hierarchies psychologically appealing—because of the structure they offer—relative to other, less structured forms of social organization. This hypothesis is rooted in compensatory control theory (Kay et al., 2008), which posits that individuals have a basic need to perceive the world as orderly and structured. Therefore, personal and external sources of control are substitutable, inasmuch as they both serve the superordinate goal of believing that the world operates in an orderly fashion. An initial study confirmed that hierarchies are perceived as more structured and orderly relative to egalitarian arrangements. In five subsequent experiments, I threatened participants’ sense of personal control to increase their need to rely on external structure. Participants who lacked control perceived more hierarchy occurring in ambiguous social situations (Study 2) and preferred hierarchy more strongly in business contexts (Studies 3-4). Two studies tested my account that hierarchies are appealing because of their structure. Preference for hierarchy was higher among individuals high in Personal Need for Structure (PNS), and control threat increased preference for hierarchy even among low-PNS participants (Study 4). Importantly, framing a hierarchy as unstructured reversed the previous effects, so that participants who lacked control now found hierarchy unappealing (Study 5). A final study found that hierarchy-enhancing careers were more appealing after control threat, even when those jobs were low-status (Study 6). I discuss how the compensatory control account for the allure of hierarchies complements and extends other influential theories of hierarchy maintenance, such as Social Dominance Theory and System Justification Theory.
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Evaporation-driven, Template-assisted Nanocrystal Assembly (ETNA): A Novel Approach to Fabrication of Functional Nanocrystal SolidsGhadimi, Arya 24 February 2009 (has links)
Synthesis of nanocrystals is one of the most rapidly advancing areas of nanoscience, and today nanocrystals can be produced with impressive control over their composition, size, shape, polydispersity, and surface chemistry. As such, they are ideal building blocks for fabricating hierarchical architectures with tailorable functionality on every level of the hierarchy. Here an evaporation-driven, template-assisted nanocrystal assembly (ETNA) technique is developed, providing a novel and general approach to fabricating freestanding, 3D, functional architectures using diverse combinations of colloidal nanocrystal species and porous templates of arbitrary geometry. Colloidal PbS (photoluminescent) and CoFe2O4 (superparamagnetic) nanocrystals are template-assembled to fabricate freestanding nanorods and inverse opals, which retain the size-dependent properties of their constituent building blocks while replicating the geometry and preserving the functionality of the templates. Further multifunctionality is demonstrated through mixed-nanocrystal architectures which exhibit the aggregate functionality of their building blocks.
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