Dissertations / Theses: '5O2'

1

Hilferink, Floor, and Stefan Thylén. "Ledarskapets påverkan på personal inom restaurangbranschen : 52 502 tecken inkl. blanksteg." Thesis, Örebro universitet, Restaurang- och hotellhögskolan, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-61240.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Truyen, Dimitri. "Elaboration par voie sol-gel de revêtements catalytiques sur substrat métallique." Toulouse 3, 2007. http://thesesups.ups-tlse.fr/615/.

Full text

Abstract:

L'objectif était d'élaborer, par voie sol-gel, des catalyseurs supportés, stables en température (< 700°C). Les deux oxydes supports étudiés ont été le dioxyde de titane TiO2 et l'oxyde mixte de zircone-cérine Zr0. 5Ce0. 5O2. L'étude a porté principalement sur la synthèse d'un oxyde support possédant un rapport surface sur volume et une porosité élevés. A partir de sols stables d'oxydes, nous avons mis en évidence l'intérêt de former des particules nanométriques et de stabiliser la phase anatase de l'oxyde TiO2 pour conserver des domaines cristallisés de petite taille. Nous avons également montré l'influence d'un polymère ajouté dans le sol qui permet de limiter les phénomènes de frittage et d'augmenter la porosité du matériau. Les travaux effectués sur l'oxyde Zr0. 5Ce0. 5O2 ont mis en évidence le rôle des interactions entre particules sur l'assemblage lors de la gélification et après calcination du matériau, ces interactions étant dépendantes du milieu dans lequel les particules se trouvent (pH, force ionique). Afin d'inhiber le phénomène de frittage, des particules d'alumine ont été incorporées comme barrières stériques entre les particules de zircone-cérine. Nous avons défini divers systèmes pour lesquels les interactions entre particules sont différentes, afin d'élaborer un empilement poreux à haute surface spécifique. A partir de la mesure des tailles de particules et des mesures de porosité, nous avons proposé des modèles d'empilement. En ajoutant les précurseurs métalliques adéquats, nous avons préparé différents types de catalyseurs métalliques (Rh, Ru, Pt). Nous avons mis au point différentes formulations afin d'obtenir des revêtements catalytiques adhérents sur un substrat métallique. Les catalyseurs ont ensuite été testés pour la réaction d'oxydation totale du CO. Les meilleures activités ont été mesurées pour le Pt déposé sur l'oxyde Zr0. 5Ce0. 5O2
The aim of the study was to elaborate metallic supported catalysts by sol-gel route stable at high temperature (< 700°C). Both oxydes TiO2 and Zr0. 5Ce0. 5O2 have been studied. The study was mainly to synthesize an oxyde used as support and having a high surface and a high porosity. From stable colloïdal sols, we pointed out the interest to perform nanometric particles and to stabilize TiO2 anatase phase in order to keep small size cristallized domains. The influence of a polymer has been shown to decrease the sintering phenomenon and so to increase the porosity of the oxyde. Interactions between particles in sols are of great importance because they involve particular stacking of the particles during gelification and after calcination. The interactions between particles are different according to the ionic strength and pH of the medium. In order to decrease the sintering phenomenon, alumina nanoparticles have been added and used as steric barriers between ceria-zirconia particles. We defined several systems of interactions to elaborate a porous stacking with a high surface area. Particles size and porosity analysis have been performed to suggest stacking models. Several catalysts have been prepared using Rh, Ru, Pt according to different formulations in order to obtain adherent catalytic films deposited onto stainless steel substrate. Then, catalysts have been tested for complete CO oxidation reaction and best results have been measured for Zr0. 5Ce0. 5O2 - Pt deposited catalyst

APA, Harvard, Vancouver, ISO, and other styles

3

Cuisinier, Marine. "Caractérisation et contrôle de l’interface électrode / électrolyte d’électrodes positives pour accumulateurs Li-ion." Nantes, 2012. http://www.theses.fr/2012NANT2097.

Full text

Abstract:

Les accumulateurs au lithium, largement développés pour l’électronique portable, sont aujourd’hui envisagés pour des applications en véhicules hybrides et électriques. Les limitations actuelles sont leur faible capacité et leur durée de vie limitée provenant entre autres de la nonmaitrise de l’interface électrode positive / électrolyte. La présente étude porte sur la caractérisation et le contrôle des processus interfaciaux relatifs aux matériaux LiNi0. 5Mn0. 5O2, Li1. 2Ni0. 4Mn0. 4O2 et LiFePO4 d’électrode positive lors du stockage et du cyclage électrochimique. La thèse s'est concentrée sur la formation et l’évolution de l'interphase formée par décomposition de l’électrolyte, en fonction de l’état de surface du matériau actif. Différents types de modifications ont été envisagés, tels qu’une modification intrinsèque par vieillissement à l’air ou par favorisation d’une orientation cristalline particulière dans le cas de l’olivine LiFePO4, ou encore par la surlithiation de l’oxyde lamellaire LiNi0. 5Mn0. 5O2, sous la forme Li[Li0. 2Ni0. 4Mn0. 4]O2. D’autres types de modifications, considérées comme artificielles ou externes, reposent sur l’usage d’additifs dans l’électrolyte ou d’un dépôt hétérochimique en surface de Li1. 2Ni0. 4Mn0. 4O2. Dans chaque cas, les espèces visibles à la surface des matériaux au cours du stockage et du cyclage sont corrélées aux performances électrochimiques des électrodes positives. L’originalité du travail repose sur le développement d’outils spectroscopiques tels que la RMN MAS (7Li, 19F et 31P) et l'EELS, parallèlement à l’XPS, pour quantifier les interphases de manière absolue et en décrire l’architecture
Lithium batteries, widely developed for portable electronics, are now being considered for applications in hybrid and electric vehicles. Their current limitations are the low capacity and limited cycle life caused notably by the uncontrolled positive electrode / electrolyte interface. The present study reports the characterization and attempts of control of interfacial processes occurring on LiNi0. 5Mn0. 5O2, Li1. 2Ni0. 4Mn0. 4O2 and LiFePO4 positive electrode materials during their storage and electrochemical cycling. The thesis focuses on the formation and evolution of the interphase formed by decomposition of the electrolyte, depending on the surface chemistry of the active material. Different types of surface modifications have been proposed, such as intrinsic modifications upon aging in air or the promotion of a particular crystalline orientation in the case of olivine LiFePO4, or by overlithiation of the LiNi0. 5Mn0. 5O2 oxide lamellar, under the form of Li [Li0. 2Ni0. 4Mn0. 4]O2. Other types of modifications, considered as artificial or external, are based on the use of additives in the electrolyte or of a heterochemical coating on the surface of Li1. 2Ni0. 4Mn0. 4O2. In each case, species detected on the surface of materials during storage and cycling are correlated with the electrochemical performance of the positive electrodes. The originality of the work is based primarily on the development of spectroscopic tools such as MAS NMR (7Li, 19F and 31P) and EELS, in parallel to XPS, to quantitatively describe the interphase and unravel its architecture

APA, Harvard, Vancouver, ISO, and other styles

4

Carr, Frank. "Government decision-making and environmental degradation : a study relating to mining activities in Papua New Guinea /." Carr, Frank (2007) Government decision-making and environmental degradation: a study relating to mining activities in Papua New Guinea. Masters by Research thesis, Murdoch University, 2007. http://researchrepository.murdoch.edu.au/502/.

Full text

Abstract:

Papua New Guinea (PNG) is a country possessing abundant resources of gold, oil, copper, timber, and fish stocks. It is hampered in its development and management of these resources, however, by serious problems of governance and corruption. These problems are evident throughout the economy and also in the management of the environment. The level of environmental damage caused by the mining industry in PNG is now such that it will require extensive rehabilitation, if the areas affected can, indeed, ever be fully rehabilitated. The mining companies which precipitated this damage were licensed and encouraged by the PNG Government in the initiation and exercise of the mining operations. The resulting environmental impact has affected the lives of thousands of New Guineans to their detriment. The degradation caused remains unredressed. Compounding the problem, there is a growing reliance by Papua New Guinea on mineral exploitation for foreign direct investment, government revenues, and foreign exchange. Gold exports accounted for the biggest share of export revenues in 2002 representing 37.5% of the total. In light of this growing dependency on mining activities, there is a correspondingly urgent requirement to address the deficiencies in the administrative, monitoring, and policing aspects of the protection of its environment. Despite the public evidence of the damage to the environment and the ensuing affect on the people of Papua New Guinea by mining activities; and despite universal condemnation of these activities and the companies responsible; the companies continue to conduct these activities without official hindrance and with little apparent concern for the long-term ramifications of their actions. This thesis will examine the degradation resulting from the mining activities of companies in Papua New Guinea over the last three decades - particularly those of Placer Dome's Porgera gold mine, BHP's Ok Tedi gold and copper mine (the waste from both of which is dumped into the Ok Tedi and Strickland rivers which are tributaries of the Fly River and form part of the Fly River system) and Lihir Gold Limited's gold mine on Lihir Island. It will examine the extent to which the Government of Papua New Guinea may have wittingly (in the sense of a prescience as to the possible or probable likelihood of deleterious impact) or unwittingly contributed to that degradation as a result of its actions or omissions. Studies of available literature suggest that there has been little attention paid to the subject of culpability on the part of successive PNG governments in matters of environmental damage. This research will contribute to reducing this gap in the literature by focusing on possible motives of the PNG government and its actors which precipitated those decisions and which resulted in environmental degradation. The discussion will examine the likely motivation of the PNG government in its deliberations and decisions and the extent to which corruption and incompetence may have played a role.

APA, Harvard, Vancouver, ISO, and other styles

5

Chan, Su Hoon. "A theory of cooperative learning as incentive-values-exchange : studies of the effects of task-structures, rewards and ability on academic and social-emotional measures of mathematics learning /." Chan, Su Hoon (2004) A theory of cooperative learning as incentive-values-exchange: studies of the effects of task-structures, rewards and ability on academic and social-emotional measures of mathematics learning. PhD thesis, Murdoch University, 2004. http://researchrepository.murdoch.edu.au/512/.

Full text

Abstract:

This PhD thesis is concerned with the social psychology of cooperative learning and its effects in cognitive and social-emotional domains. It comprises two main studies and two exploratory studies undertaken during two 10-day, 16-hour learning intervention programmes for Maths Word Problem-Solving (MWPS), respectively for 285 and 451 Grade-5 students in Singapore. Study 1 used a quasi-experimental design to investigate the outcomes of task-structures in an Individual Learning condition and three dyadic Cooperative Learning conditions that varied in the key elements: positive interdependence, individual accountability and group goals. The results indicated that a Cooperative Learning condition with a high level of positive interdependence in combination with a low level of individual accountability resulted in significantly lower MWPS academic achievement and peer-self-concept outcomes than the other conditions; whereas the other Cooperative conditions with lower levels of positive interdependence did not differ significantly from the Individual Learning condition in MWPS academic outcomes but produced better peer-self-concept outcomes. The discussion theorises how task-structured positive interdependence in cooperative conditions can potentially be so rigid that it limits individual control in overcoming a dyadic partner's error. In turn, this increases the likelihood that members of dyads would 'sink together' (rather than 'swim together') - which appears to produce relatively worse MWPS academic outcomes as well as being detrimental to peer-self-concept outcomes. Therefore, optimal cooperative learning conditions for mathematics should allow interaction amongst student partners but not preclude individual control over any stage of the learning task. Study 2 comprised three interrelated investigations of the effects of rewarding learning behaviours and the effects of ability-structures on Individual, Equals (homogeneous) and Mixed (heterogeneous) dyads. All children were eligible to be rewarded for their own MWPS academic mastery achievements, but comparison groups in each of the ability-structures were either eligible or not eligible to be rewarded for displaying target learning behaviours (LB-Rewards or No-LB-Rewards). The academic programme was based on Polya's problem-solving strategies of understanding the problem, devising a plan, carrying out the plan, and checking the results. Children in all learning conditions were instructed to use these problem-solving strategies and, according to their differently assigned learning conditions, to use learning behaviours (LB-s) either 'for helping oneself' in Individual conditions or 'helping one's partner' in Equals and Mixed conditions. In 'LB-Rewards' conditions, teachers rewarded the children's displays of the assigned behaviours for learning alone or learning together, whereas in 'LB-No-Rewards' conditions they did not. The investigation in Study 2a encompassed the same dependent variables as Study 1. The results indicated that for maths (MWPS), Learning Behaviour rewards were detrimental to Individual Learning conditions with significantly lower MWPS gains when the rewards were used compared to when they were not, whereas the opposite pattern was found for Equals where the effects of Learning Behaviour significantly enhanced MWPS outcomes. For peer-self-concept, effects varied across the Cooperative conditions' Learning Behaviour rewards conditions. An exploratory analysis of High-, Low- and Medium-ability revealed patterns of the inter-relationships between ability-structures and effects of rewarding. Study 2b is exploratory and involved traversing the traditional theoretical dichotomy of individual vs social learning, to develop a measure combining them both in 'self-efficacy for learning maths together and learning maths alone'. The effects of the various experimental conditions on factors in this measure were explored, allowing detailed insight into the complex, multi-dimensional and dynamic inter-relationships amongst all the variables. The findings have been developed into a theory of Incentive-values-Exchange in Individual- and Cooperative-learning, arguing that there are four main cooperative learning dimensions - 'individual cognitive endeavour', 'companionate positive influence', 'individualistic attitudes development' and 'social-emotional endeavour'. The argument is that students' motivation to learn cooperatively is the product of perceived equalization of reward-outcomes in relation to each dyadic member's contributions to learning-goals on these dimensions. Hence, motivation varies across ability-structures and reward-structures in a complex manner. A further proposition of the theory is that social-emotional tendencies and biases form a dynamic system that tends to maintain dyadic partners' achievement levels relative to their ability-positioning. Study 2c is exploratory and extends Study 2b by illustrating its Incentive-values-Exchange theory. Samples of children's written descriptive reflections of their experiences in cooperative dyads are provided to illustrate the point made about the children's relationships and effects on each other for each of the factors on the individual- and cooperative-learning scales. As such, this section of the thesis offers a parsimonious explanation of cooperative learning and the effects of various learning conditions on the integrated cognitive, social and emotional domains. Practical implications in light of the study's findings of optimal conditions include the possibility of practitioners more closely tailoring cooperative learning conditions to meet the academic or social-emotional needs of learners at specific ability levels. Future directions for research include testing some of the learning dimensions and proposed theoretical configurations for them using controls identified by the statistical analyses together with qualitative observations, and further developing new methodologies for investigating the social-psychological causes and consequences of learning motivation.

APA, Harvard, Vancouver, ISO, and other styles

6

Laiginhas, Fernando. "Diamonds from the Ural Mountains : their characteristics and the mineralogy and geochemistry of their inclusions." Thesis, University of Glasgow, 2008. http://theses.gla.ac.uk/512/.

Full text

Abstract:

This thesis has investigated the geological origin of diamonds from the Ural Mountains. A set of inclusion-bearing diamonds from alluvial deposits in the western part of the Urals was characterised on the basis of their morphological features, nitrogen contents and nitrogen aggregation states, carbon and nitrogen stable isotopes, mineral inclusion geochemistry and radiometric isotopic ages of the inclusions. The vast majority of the studied diamonds are rounded dodecahedra, which indicates that the diamond population has experienced major resorption after crystallisation. The majority of the diamonds are affected by radiation damage and display evidence of transportation. Non-abraded diamonds exhibit similar surface features to those abraded, so they are probably of similar origin. The studied inclusion-bearing set of diamonds shares some characteristics with the overall, mostly inclusion-free, diamond population from the Ural Mountains. This similarity in physical characteristics strongly suggests that the Ural diamonds are all part of a single population. A Fourier Transform Infra-Red (FTIR) spectroscopy study allowed both the concentration of nitrogen and the aggregation states of this element to be quantified. Diamonds from other known primary deposits in the East European Craton (EEC) have FTIR signatures that do not match that of the studied population. Nitrogen thermometry results suggest that the Ural diamonds probably crystallised under similar pressure-temperature conditions. If a similar overall regime of formation for the Urals alluvial diamonds is considered, then a single primary diamond source or a spatial proximity between primary contributory sources seems likely. The variations in δ15N – δ13C measured in the Ural diamonds of the peridotitic and eclogitic paragenesis suggest derivation from a similar, initially homogenous, mantle carbon source which has been subjected to metasomatic-induced isotopic fractionation. However, for some δ15N-enriched – δ13C-depleted eclogitic diamonds, the possibility of crystallisation from subduction-related metasomatic fluids/melts cannot be excluded. Based on the chemical composition of syngenetic mineral inclusions recovered from the Ural diamonds, the eclogitic paragenesis (60%) dominates over the peridotitic (26%), with a minor websteritic assemblage also present (2%). The remaining 12% are diamonds with sulphide inclusions of unknown paragenesis. The chemistry of the mineral inclusions almost completely overlaps that of previous electron microprobe studies of inclusions in diamonds from worldwide localities. Geothermobarometric calculations show an overall agreement between the equilibration conditions of the three inclusion parageneses. The Ural diamonds crystallised at temperatures of 1050-1300°C, at minimum depths of about 165 km, within a diamondiferous lithosphere extending to at least 230 km at the time of diamond formation. The Re-Os isotope genesis age data for syngenetic sulphide inclusions and the 40Ar/39Ar laser probe eruption ages of syngenetic clinopyroxene inclusions were determined. Six eclogitic sulphide inclusions, two of which coexist in the same diamond, gave an isochron age of 1280 ± 310 Ma which may be associated with rift-related magmatism that affected the EEC at ca. 1.3 Ga. The determined genesis age is also similar to genesis ages reported for eclogitic diamonds from a number of mines in southern Africa, and this is probably indicative of a global diamond formation event at that time. Five eclogitic clinopyroxenes recovered from four diamonds yielded similar 40Ar/39Ar ages averaging 472 ± 28 Ma, which likely approximate the time of source kimberlite/lamproite eruption. This age indicates that the Ural diamonds are not derived either from the diamond-bearing kimberlites of the Siberian craton, nor from presently known Russian and Finnish kimberlite provinces on the EEC. An integrated model for the genesis, eruption and accumulation of the Ural diamonds in the context of the evolution of the EEC is proposed. The Urals placer deposits are mainly confined to 407-397 Ma sedimentary rocks along the western side of these mountains, with diamond size distribution indicating sediment transportation at that time generally from the north-west. The diamondiferous sedimentary accumulation in the Urals is envisaged as being analogous to that presently found along the Namaqualand / Namibian coastal belt in the western margin of southern Africa. During the construction of the Ural Mountains, the diamondiferous sediments became part of the western accretion zone when the EEC united with the Kazakhstan and Siberia plates during late Devonian through to late Triassic times. The evidence presented in this thesis suggests the existence of an undiscovered kimberlite/lamproite primary source, probably on the Volgo-Uralia crustal segment of the EEC, which gave rise to the Urals diamond deposits.

APA, Harvard, Vancouver, ISO, and other styles

7

Friscourt, Frederic. "Synthesis and application of pinene-pyridine derivatives in asymmetric catalysis." Thesis, University of Glasgow, 2008. http://theses.gla.ac.uk/532/.

Full text

Abstract:

The research described herein focuses on the synthesis of chiral pinene-pyridine derivatives, and their application in asymmetric catalysis. Both transition metal catalysed and organocatalytic transformations were investigated. Chiral pyridine-phosphines based on α-pinene were synthesised and applied as efficient P,N-ligands for the enantioselective palladium(II)-catalysed Baeyer-Villiger oxidation of prochiral 3-substituted cyclobutanones to furnish chiral γ-butyrolactones in up to 81% ee. Complexes of these ligands with iridium can also promote asymmetric hydrogenation of olefins in up to 83% ee. Novel N,N’-dioxides were synthesised from α-pinene and a range of 2-pyridine-acetophenones by employing Kröhnke annulation reaction as the key cyclisation step. Although poor enantioselectivity was achieved (up to 12% ee), high reactivity of the catalysts is, however, promising.

APA, Harvard, Vancouver, ISO, and other styles

8

Turnbull, Susan B. "Characterisation of focused ion beam nanostructures by transmission electron microscopy." Thesis, University of Glasgow, 2009. http://theses.gla.ac.uk/572/.

Full text

Abstract:

Ion irradiation is an effective tool for the modifcation and control of the properties of magnetic thin films. Basic magnetic properties such as coercivity and local anisotropy direction can be altered in NiFe (Permalloy) films, whilst for Co/Pd multilayers, ion irradiation results in a transition from perpendicular to in-plane magnetisation. This ability to tailor magnetic properties in a controlled manner can be used as a tool for nanoscale patterning. Results are presented from investigations into the effect of Ga+ ion dose on the magnetic and structural properties of permalloy thin film systems. Systems consisting of a permalloy layer of either 10nm or 20nm, and one or more non-magnetic layers of Al or Au were deposited by thermal evaporation and irradiated in a focused ion beam (FIB) with a 30kV Ga ion source. The presence of the non-magnetic layers allows irradiation induced mixing with the magnetic layer, effectively creating alloyed regions with different properties to the rest of the film. At low ion doses, no signifcant effect on either the magnetic or structural properties were observed. Bright field TEM images of the irradiated regions revealed that increasing the dose to 1x10^15 ions/cm^2 and above caused an increase in mean grain size from ~5nm to ~30nm. The Fresnel mode of Lorentz microscopy revealed that a reduction in the mean moment was also observed at these doses but no clear changes in coercivity or magnetisation reversal behaviour were observed until the systems were rendered non-magnetic. This occurred at 1x10^16 and 3x10^16 ions/cm^2 for systems with 10nm NiFe and 20nm NiFe respectively. Milling of the samples was evident at these high doses, meaning that it was not possible to magnetically pattern these systems without occasioning a change of 2nm and 6nm respectively in the thickness of the samples. Based on the above, structures were created to control the location of magnetic domain walls (DW). Lines were written by FIB in simple elements with dimensions <1micron, the aim being to create a higher density of DW than could be realised in equivalent homogeneous elements. Structures containing high DW densities are attractive for measuring domain wall magnetoresistive effects and have potential application in DW-based storage or logic devices. One geometry of interest is an element with `zigzag' edges. Results are be presented in chapter 4 showing how these can support either quasi-uniform magnetisation or multi-domain structures separated by DW with spacing <100nm. In chapter 5 irradiation of magnetic structures was again carried out, but this time in magnetic wires to create defect or pinning sites. Domain wall traps fabricated by ion irradiation were characterised, and irradiation line defects introduced along the wire. The lines were patterned at 90± and 45± to the length of the wire, and successfully pinned the domain walls at predefned locations. A 90 degree line irradiated at a dose of 1x10^15 ions/cm^2 was not able to provide a strong enough pinning site for a domain wall. However, when the angle of the line was changed to ±45 degrees it was possible to reproducibly pin domain walls at these sites. A relationship between the orientation of the irradiated line and the chirality of the domain wall that pinned at the site was observed. The effcts of irradiation on Co/Pd multilayers with perpendicular magnetic anisotropy was investigated in chapter 6. Irradiation causes magnetic systems with perpendicular magnetisation to undergo a transition from out-of-plane magnetisation to in-plane. A grid pattern was devised so that magnetic states with both in-plane and out-of-plane magnetisation could be observed. A combination of differential phase contrast microscopy and simulations of integrated magnetic induction were used to determine the orientation of magnetisation within the lines.

APA, Harvard, Vancouver, ISO, and other styles

9

Tatham, Daniel John. "Towards using seismic anisotropy to interpret ductile deformation in mafic lower crust." Thesis, University of Leeds, 2008. http://etheses.whiterose.ac.uk/592/.

Full text

Abstract:

The lower crust forms an important geodynamic control in continental tectonics and the communication and coupling of kinematics between surface and deep-Earth processes. An understanding of the relationship between seismic properties, finite strain and fabric orientation thus provides a useful tool in the remote sensing and interpretation of deformation in the lower crust. This thesis outlines a work-flow model by which the seismic properties of a single and representative lower crustal lithology can be calculated and calibrated against finite strain from petrofabric development across a strain gradient. The work-flow model constitutes a multi-disciplinary approach, incorporating field mapping and sample collection, experimental petrofabric determination, and seismic modelling. A review of compositional estimates of the deep crust, including xenoliths, exposed sections and estimates from wide-angle seismic profiles, indicates the importance of mafic lithologies. The Laxfordian-age high-grade shear zone at Upper Badcall, NW Scotland, exhibits a strain gradient in a deformed doleritic Scourie dyke (Lewisian complex) that intersects the zone at a high angle. From an analysis of field data from detailed mapping, the shear zone is shown to be characterised by generally simple shear, but where the tectonic movement direction varies transversely across the shear zone. Calculation of the strain profile across the deformation zone gives shear strains, y up to 57, but with y < 15 being perhaps more realistic. Cumulative displacements total ~1000m left-laterally, and ~600m vertical displacement, north-side up. Nine samples were collected across the shear zone in the mafic dyke, representing a strain gradient from undeformed protolith to the highest recorded stains. The sample suite is characterised as a hornblende-plagioclase-quartz aggregate that develops macroscopic planar and linear fabrics with strain, from an essentially isotropic protolith. Quantification of the aggregate lattice preferred orientation (LPO) using electron backscatter diffraction (EBSD) showed the dominance of fabric development in the hornblende phase, with (100) poles clustering forming normal to the foliation plane and [001] axes parallel to the tectonic X direction. Plagioclase and quartz retained random fabrics from the wall-rock protolith with increasing finite strain. The hornblende LPO fabric, described by the texture index, J, shows a positive logarithmic relationship with strain, where LPO intensity saturated by y ~10. The strain-calibrated quantitative petrofabric description of each sample is used to calculate their aggregate elasticity tensors (Cij) via a Voigt-Reuss-Bill average, and from which seismic properties are derived using Christoffel's equation. Hence, a framework of petrofabric- and strain-calibrated seismic properties is described for a strain gradient in a representative high-grade mafic lithology. P-wave anisotropies up to ~10% are-recorded in the most deformed samples with Vsmax typically between 6.42-6.63kms/-1. S-wave anisotropies record up to 7.23% AV, in the most deformed samples, with Vpmax ranging between 3.62-3.75kms-1 for all samples. The relationship between petrofabric-derived seismic anisotropy and finite strain across the sample suite show a positive relationship, approximated by a logarithmic function, whereby P- and S-wave anisotropy exhibit a steep positive gradient with strain up to y~10. The sample-wise framework of petrofabric- and strain-calibrated seismic properties is interpolated to estimate the continuum relationship between seismic properties, finite strain and petrofabric orientation. In a move to illustrate the application of results in seismic and structural modelling, case study models of crustal deformation are presented for the eastern Basin and Range province, the North Sea rift, and Tibet. Models are promising in their ability to differentiate between regions of lower crust characterised by a uniform mafic composition but different finite strain state and/or petrofabric geometry, although multiple seismic survey methods may be needed to fully interpret results in terms of strain and fabric orientation. In summary, a multidisciplinary approach combining field mapping and sampling, petrofabric characterisation with EBSD, and seismic modelling provides an efficient and reproducible work-flow for the determination of petrofabric-derived strain-calibrated seismic properties of lower crustal materials.

APA, Harvard, Vancouver, ISO, and other styles

10

Prasad, Swarna Subbulakshmi. "Extending integrated coastal management (ICM) techniques by an evaluation of the stakeholders' roles in environmental degradation in southern India." Thesis, Southampton Solent University, 2008. http://ssudl.solent.ac.uk/572/.

Full text

Abstract:

There is concern for the environmental protection of coastal zones throughout the developed and developing world. The major strategy against environmental degradation is the widespread introduction of the Coastal Zone Management (CZM) and Integrated Coastal Managment (ICM) regulatory processes. A great deal of effort is spent introducing, developing and refining the various ICM processes and structures that should reduce the likelihood of man made environmental catastrophe. ICM itself takes a functional view of management. An alternative and broader set of paradigms as presented by Burrell and Morgan (1979) provide a richer illustration of the process. Applying Burrell and Morgan's multi paradigm approach to the analysis of four case studies of environmental degradation on the Tamil Nadu coast in southern India, the regulatory framework is shown not only to be inadequate, but in fact adding complexity and exacerbating the sociological pressures that led to degradation in ways that will not be overcome by recent refinements of the existing process. An attempt has been made to identify the key issues that are crucial to identifying coastal projects that are 'at risk' of environmental degradation in India and a generic conceptual model is proposed. In the light of the results of this research study, a critique of ICM recommendations that have been commissioned by the Indian government's Ministry of Environment and Forests (MoEF) has been attempted and these are shown to be inadequate in terms of preventing environmental degratation.

APA, Harvard, Vancouver, ISO, and other styles

11

O'Neill, Terence. "'Smoking to forget' : the impact of prolonged smoking on prospective memory." Thesis, Northumbria University, 2010. http://nrl.northumbria.ac.uk/572/.

Full text

Abstract:

Prospective memory (PM) refers to remembering to remember and is essential for everyday living. Although recent research has focused upon PM deficits associated with recreational drug use, very little research to date has focused on smoking and PM. This thesis had four aims. Firstly, to verify whether PM deficits are associated with prolonged smoking could be replicated. Secondly, to observe whether such smoking-related deficits extended to objective measures of PM. Thirdly, to assess what effect, if any, abstinence from smoking had upon PM. Fourthly, to ascertain whether there was any difference in PM performance between regular (daily) smokers and social (binge) smokers. Participants were drawn primarily from undergraduates in North East universities. Studies 1–3 in this thesis studied self-reports and objective measures of PM in smokers, previous smokers and non-smokers. Across all three studies no consistent findings were observed on self-reported PM reflecting deficits associated with smoking, but smokers performed worse on the objective measures of PM than non-smokers, with previous smokers falling between the other two groups – suggesting that smokers’ PM is impaired and that those who stopped smoking appeared to recover a proportion of their PM function. Study 4 revealed smokers’ poor performance on objective tasks was not confounded by their being in a state of withdrawal. Studies 5 and 6 explored whether any difference was observed between ‘social’ (binge) smokers and ‘regular’ (daily) smokers on PM performance. Studies 5 and 6 found no difference between social and regular smokers on a video-based, nor a real-world PM task. Overall, it was concluded that self-reports of PM do not provide consistent findings (first aim), lowered PM performance on objective measures are associated with prolonged smoking (second aim), previous smokers show some recovery of PM function (third aim) and that the pattern of smoking does not affect PM performance in smokers’ (fourth aim).

APA, Harvard, Vancouver, ISO, and other styles

12

Bell, Audrey. "An exploration of 'choice' in relation to social care for older people in a rural area." Thesis, Northumbria University, 2010. http://nrl.northumbria.ac.uk/562/.

Full text

Abstract:

Social care is currently undergoing a transformation, driven by Government policy, and key to this transformation is giving greater choice to service users. This vision of choice is based on a market model of competing service providers; such a model can be difficult to implement in rural areas where problems of space, time and access hamper service delivery. This raises the question of whether policy is biased towards urban areas and highlights the important role that geographical gerontology can play in developing more person-centred social care policy and practice. This consumerist vision of social care has also fuelled a theoretical debate which underpins this research. The market model of choice has been located within a wider discourse which regards the self as a rational, self-sufficient individual. An alternative discourse has been posited from a feminist ontology in which interdependence and co-responsibility come to the fore; such a discourse emphasises the personal dimension to social care practice. This project forms the research component of a professional doctorate in occupational therapy and is concerned with the self-expressed views of rural older people in relation to the above social care theory and policy. Taking a phenomenological approach, a narrative methodology was used to interview 11 older people who live in rural West Northumberland. Participants' narratives concerning social care re-affirm findings from previous gerontological research which assert low expectations, self-sufficiency and the crucial role of human relationships. Although at a superficial level, 'choice' is not a term participants relate to social care, it is revealed that they do make choices on a daily basis both in relation to social care and their home situation, but choice is a complex and ongoing process rather than a one off event. It is suggested that the way participants situate themselves within their network of care and their geographic location helps them to maintain coherence in their personal identity. The concepts identified above are used to develop theory from a postmodern and feminist perspective in the areas of social care and geographical gerontology, forming an original contribution at the interface of these two domains.

APA, Harvard, Vancouver, ISO, and other styles

13

Segura-Garcia, Iris Haydee. "Population genetics of species on the genera Tursiops and Delphinus within the Gulf of California and along the western coast of Baja California." Thesis, Durham University, 2011. http://etheses.dur.ac.uk/592/.

Full text

Abstract:

This present study investigated the evolution of population genetic structure of two closely related cetacean species, bottlenose (Tursiops truncatus) and common dolphins (Delphinus spp.) within the Gulf of California (GC) and along the West Coast of Baja California. In this study, we found evidence of strong genetic differentiation in both bottlenose and common dolphin populations in the absence of physical barriers. The comparison of the patterns of population genetic differentiation found here for bottlenose and common dolphins supports the hypothesis of local habitat dependence and resource specialization at both the population and putative species level. Fine-geographic scale structure was detected in coastal bottlenose dolphins, which seemed to be strongly associated to the biogeographic subdivision of the Gulf of California and western coast of Baja California. This result suggests that gene flow among bottlenose dolphin coastal populations might be restricted by local dependence on diverse ecological conditions. In contrast, the long-beaked common dolphin genetic structure did not reflect the habitat heterogeneity of the region to the same extent. The difference in foraging specialization between coastal and offshore populations of both bottlenose and common dolphins is reflected in the pattern of genetic structure observed at a broader geographic scale. Overall, the results support the hypothesis that local habitat dependence promotes population differentiation in the absence of physical boundaries to dispersal in these highly mobile species. This study provides an unusual insight into the conditions that lead to incipient speciation in these groups. Divergence among common dolphin populations appears to be associated with changes in the paleoceanographic conditions of the region to the extent that reciprocal monophyly between the sympatric D. delphis and D. capensis forms has evolved within the Holocene timeframe.

APA, Harvard, Vancouver, ISO, and other styles

14

Zhuang, Xiaoying. "Meshless methods : theory and application in 3D fracture modelling with level sets." Thesis, Durham University, 2010. http://etheses.dur.ac.uk/502/.

Full text

Abstract:

Accurate analysis of fracture is of vital importance yet methods for effetive 3D calculations are currently unsatisfactory. In this thesis, novel numerical techniques are developed which solve many of these problems. This thesis consists two major parts: firstly an investigation into the theory of meshless methods and secondly an innovative numerical framework for 3D fracture modelling using the element-free Galerkin method and the level set method. The former contributes to some fundamental issues related to accuracy and error control in meshless methods needing to be addressed for fracture modelling developed later namely, the modified weak form for imposition of essential boundary conditions, the use of orthogonal basis functions to obtain shape functions and error control in adaptive analysis. In the latter part, a simple and efficient numerical framework is developed to overcome the difficulties in current 3D fracture modelling. Modelling cracks in 3D remains a challenging topic in computational solid mechanics since the geometry of the crack surfaces can be difficult to describe unlike the case in 2D where cracks can be represented as combinations of lines or curves. Secondly, crack evolution requires numerical methods that can accommodate the moving geometry and a geometry description that maintains accuracy in successive computational steps. To overcome these problems, the level set method, a powerful numerical method for describing and tracking arbitrary motion of interfaces, is used to describe and capture the crack geometry and forms a local curvilinear coordinate system around the crack front. The geometry information is used in the stress analysis taken by the element-Free Galerkin method as well as in the computation of fracture parameters needed for crack propagation. Examples are tested and studied throughout the thesis addressing each of the above described issues.

APA, Harvard, Vancouver, ISO, and other styles

15

Alshurideh, Muhammad Turki. "Customer service retention : a behavioural perspective of the UK mobile market." Thesis, Durham University, 2010. http://etheses.dur.ac.uk/552/.

Full text

Abstract:

Customer retention is essential for firms in the service sector and will subsequently receive a great deal of attention in the coming years. A large majority of firms are losing their current customers at a significant rate. UK operators lose over a third of their subscribers every year in spite of incurring large customer acquisition and retention expenditures. A study of customer retention from a variety of angles, including economic, behavioural and psychological perspectives, was rigorously carried out. It has been found that a majority of scholars explain customer retention from a behavioural perspective by using unrelated or indirect factors such as trust and commitment, price terms, and loyalty terms. It has also been noted that previous studies lack a clear theoretical background and a solid empirical proof to support their findings of customer operant retention behaviour. This study approaches the customer retention problem in the mobile phone sector from a behavioural perspective, applying the Behavioural Perspective Model as the main analytical framework. The model includes a set of pre-behaviour and post-behaviour factors to study consumer choice and explains its relevant drivers in a viable and comprehensive way, grounded in radical behaviourism. Many data collection methods were used to collect data from the study sample, including mobile contracts content analysis techniques, customer focus groups, and, principally, a customer survey supported by interviews with a number of managers. The data were analysed using different regression measurements to test the study model, and the propositions were constructed and tested quantitatively and discussed qualitatively. Analysis revealed that a customer will buy a mobile telecommunication package and engage in a long-term relationship with a supplier whom he or she believes will honour the relationship’s functional and emotional benefits; the consumer will be expecting to obtain such benefits when he/she buys, consumes, and has a positive experience of both the purchased object and the seller.

APA, Harvard, Vancouver, ISO, and other styles

16

Yun, Youngjun. "Pentacene based organic electronic devices." Thesis, Durham University, 2010. http://etheses.dur.ac.uk/532/.

Full text

Abstract:

This thesis describes a study of pentacene-based organic electronic devices with poly(methyl methacrylate) (PMMA) and cross-linked PMMA (cPMMA) gate dielectrics. The electrical characteristics of pentacene-based organic thin-film transistors (OTFTs) using PMMA as the gate dielectric are reported. Uniform pinhole-free and crack-free films of PMMA could be obtained by spin-coating, with a lower limit to the thickness of about 150 nm. The effects of the insulator thickness and channel dimensions on the performance of the devices has been investigated. Leakage currents, which are present in many devices using polymeric gate dielectrics, were reduced by patterning the pentacene active layer. The resulting transistors exhibited minimal hysteresis in their output and transfer characteristics with an acceptable performance (a field-effect mobility of 0.33 cm2 V−1 s−1, a threshold voltage of -11 V, an on/off current ratio of 1.2X106 and a subthreshold slope of 1.5 V per decade). A bootstrapped inverter incorporating optimised pentacene OTFT structures, with PMMA as the gate dielectric, has been designed, fabricated and tested. The inverter uses capacitive coupling and bootstrapping effects, and exhibits superior performance to the normal diode-connected load inverter. The circuit has a 30 us rise time and 450 us fall time, at an operating frequency of 1 kHz and 30 V drive voltage. Pentacene-based OTFTs incorporating a PMMA gate insulator usually possess a large operating voltage, related to the thickness of the PMMA layer. A physical method, in particular ion-beam irradiation, to produce ultra-thin cross-linked layers of PMMA (33 nm) is introduced. It is demonstrated that physical cross-linking of the PMMA gate dielectric can be used to produce OTFTs with improved performance (a field-effect mobility of 1.1 cm2 V−1 s−1, a threshold voltage of -1 V, an on/off current ratio of 1.0X106 and a subthreshold slope of 220 mV per decade) and operating at low voltages, < 10 V. Low voltage memory transistors based on various charge storage elements (gold nanoparticles, ultra-thin aluminium and silver films) with cPMMA as the gate dielectric, have been investigated. Solution-processed OTFTs based on 6,13-bis(triisopropylsilylethynyl) (TIPS) pentacene with PMMA and cPMMA as the gate dielectric were also studied.

APA, Harvard, Vancouver, ISO, and other styles

17

Pinto, Pongpan. "Incorporating an element of negotiation into a service-oriented broker application." Thesis, Durham University, 2010. http://etheses.dur.ac.uk/562/.

Full text

Abstract:

The Software as a Service (SaaS) model is a service-based model in which a desired service is assembled, delivered and consumed on demand. The IBHIS broker is a ‘proof of concept’ demonstration of SaaS which is based on services that deliver data. IBHIS has addressed a number of challenges for several aspects of servicebased software, especially the concept of a ‘broker service’ and service negotiation that is only used in establishing end-user access authorizations. This thesis investigates and develops an extended form of service-based broker, called CAPTAIN (Care Planning Through Auction-based Information Negotiation). It extends the concepts and role of the broker as used in IBHIS, and in particular, it extends the service negotiation function in order to demonstrate a full range of service characteristics. CAPTAIN uses the idea of the integrated care plan from healthcare to provide a case study. A care planner acting on behalf of a patient uses the broker to negotiate with providers to produce the integrated care plan for the patient with the broker and the providers agreeing on the terms and conditions relating to the supply of the services. We have developed a ‘proof of concept’ service-oriented broker architecture for CAPTAIN that includes planning, negotiation and service-based software models to provide a flexible care planning system. The CAPTAIN application has been evaluated that focuses on three features: functions, data access and negotiation. The CAPTAIN broker performs as planned, to produce the integrated care plan. The providers’ data sources are accessed to read and write data records during and after service negotiation. The negotiation model permits the broker to interact with the providers to produce an adaptable plan, based on the client’s needs. The primary outcome is an extendable service-oriented broker architecture that can enable more scalable and flexible distributed information management by adding interaction with the data sources.

APA, Harvard, Vancouver, ISO, and other styles

18

Proctor, Duncan Edward. "How moral knowledge motivates : a practical reason account." Thesis, Durham University, 2010. http://etheses.dur.ac.uk/582/.

Full text

Abstract:

When we make moral judgements and act morally we recognise and respond to reasons that are there whether we recognise them or not. This is the claim defended in this thesis. It has two aspects. The first is that acts of moral judgement aspire, sometimes successfully, to moral knowledge. This is moral cognitivism. The second is that moral truths report reasons for action. In responding appropriately to these reasons we are motivated to action. This is the practicality of morality. Hence, it is claimed, there is a moral reality that we respond to in both cognition and action. Adopting a practical reason approach, I argue that the objectivity and practicality of morality are not in conflict, but are linked by the idea of a practical reason. The moral truths that we can have knowledge of are the truths about the reasons for action that morality provides. I argue for this claim by showing why we should reject Humean ways of thinking about motivation and practical reason and embrace a broadly Kantian account. I argue that this account is compatible with seeing moral reasons as contributory rather than decisive or overriding. I also show how this account enables moral cognitivists to respond convincingly to arguments advanced by non-cognitivists.

APA, Harvard, Vancouver, ISO, and other styles

19

Armstrong, John Patrick. "Lyric realism to Epic consciousness : poetic subjectivity in the work of Edward Dorn." Thesis, University of Glasgow, 2008. http://theses.gla.ac.uk/502/.

Full text

Abstract:

This thesis looks at Edward Dorn s work from his early poems in the late 1950 s to Gunslinger, his mock epic of the American West written between 1968 and 1974. The overall background premise to the present study is that, in this period, Dorn s work develops from a form of lyric, in his early work, to the construction of a multiple and epic consciousness within the four books of Gunslinger. Some critics of Dorn see quite radical shifts within this development, which often leads to a periodizing of Dorn s work. But this thesis argues for a strong continuity that runs alongside these shifts, driven by a consistent anti-capitalism that informs Dorn s writing. Chapter 1 assesses several of Dorn s early poems and finds within the construction of his poetic subject, a tendency to undo and undermine the traditional lyric voice of interiority. Comparisons are made with Frost and Thoreau, and Olson is introduced as Dorn s first and foremost major influence. The poet s dealing with otherness is considered, as are the influence of Whitman and Blake among others, with the aim of placing Dorn in a literary sense, and showing how his poetry continues and subverts various traditions and conventions of poetry, In Chapter 2, examples of Dorn s prose works - short stories, sketches and his autobiographical novel By the Sound (1971) - are explored both in their own terms and as experiential backdrop to the poetry. This section is particularly concerned with Dorn s configuration of poverty in his work and how it is consstructed as a form of American otherness. Chapter 3 s primary concern is with Dorn s treatment of the American West in his 1964 volume Hands Up! Particularly important here is Dorn s undemining of myth, its process of privileging certain stories to the detriment of history, and the West s reliance on capitalism. The second half of this chapter continues these ideas through an assessment of 'The Land Below'. Chapter 4 critiquse Geography (1965) through the influence of Charles Olson and the cultural geographer Carl Otwin Sauer. The first half is concerned with Dorn s push for expansiveness in his poetry and his attempts to achieve, what he calls, a 'condition of the simultaneous.' The second half of the chapter however, locates in this collection, a poetics of melancholy and isolation that is more in keeping with his early work and in tension with his development toward epic. Chapter 5 assesses The North Atlantic Turbine (1967), focusing primarily on the two long poems of the volume, 'The North Atlantic Turbine' and 'Oxford.' This section looks at the further expansion in Dorn s poetics with the collection s global reach, and also considers the introduction of the experimentation with made-up voices. The final chapter on Gunslinger looks first at Dorn s treatment of the first-person pronoun as a continuation of his consistent testing of poetic subjectivity. Also explored, are 'The Cycle' and Dorn s creation of Robart as a monstrous manifestation of capiralism and finally, how the poem utilises the genre of eopc. The goal of the thesis is to explore beneath the presumptions about Dorn s development as a poet and understand how the complexities of such a development are played out within the texts themselves. Also, the aim here is to show how the movement from lyric to epic takes place in Dorn s work by very gentle degrees and is inextricably connected to his anti-capitalist politics.

APA, Harvard, Vancouver, ISO, and other styles

20

MacBeth, Angus M. "The function of attachment in first episode psychosis : a theoretical integration and clinical investigation." Thesis, University of Glasgow, 2009. http://theses.gla.ac.uk/522/.

Full text

Abstract:

Abstract: Section I - Introduction: The thesis explores the value of attachment theory as a framework for understanding the onset of, and adaptation to the experience of psychosis. The first section of the thesis establishes the clinical and theoretical context from which this line of enquiry arises, starting with a brief historical overview of the clinical approaches towards psychosis, including the diagnosis of schizophrenia, as a nosological entity (Chapter 1). Particular attention is drawn to the role of affect in psychosis, following Bleuler’s (1911/1950) conceptualisation of the splitting of cognitive and affect processes in the diagnosis of schizophrenia. The late 20th century growth of early intervention for psychosis, a psychologically informed service model, is discussed, in order to contextualise the service model explored for the second empirical study in the thesis. The parameters of the onset of psychotic difficulties, and subsequent adaptation to the experience of psychosis are then discussed (Chapter 2). Following this, the current literature on premorbid (i.e. before the onset of psychotic difficulties) functioning in psychosis and duration of untreated psychosis (DUP) is reviewed. The data finds no significant relationship between DUP and premorbid adjustment, and suggests that the role of social and academic functioning has been undervalued, particularly with regard to negative symptomatology and quality of life, with poorer adjustment relating to increased negative symptomatology and poorer quality of life. The importance of adolescent premorbid functioning is also highlighted. As premorbid adjustment concerns functioning prior to the onset of psychotic symptomatology, the review suggests scope for a reappraisal of the role of psychodevelopmental factors in psychosis (Chapter 3). This forms the rationale for viewing attachment theory as a theory par excellence in forwarding a psychodevelopmental understanding of psychosis, particularly given the relevance of contemporary perspectives on attachment theory (focussing on insecure attachment representations) in aiding the understanding of psychopathology in general (Chapter 4). Concluding the first section, a theoretical integration offers a framework for applying the principles of attachment theory, and the related constructs of mentalisation and affect regulation (e.g. Fonagy, Gergely, Jurist & Target, 2002) to the study of psychosis (Chapter 5). In particular the relevance of attachment and mentalisation to help-seeking, adaptation to psychosis and psychotic phenomenology is highlighted. It was hypothesised that secure attachment would associate with shorter DUP and better engagement, compared to insecure attachment classifications. Higher levels of mentalisation (operationalised as Reflective Function, RF) were also hypothesised to associate with shorter DUP, better help-seeking and better adjustment. Secure attachment was hypothesised to associate with higher RF. Section II – First Empirical study The second section of the thesis (Chapter 6) presents a short test of the theoretical validity of applying attachment theory to psychosis, using an analogue study to investigate the role of attachment in the phenomenology of paranoia and hallucinations. The results suggest attachment and a strategy of interpersonal distancing predict higher levels of paranoia, whereas hallucinatory phenomena were predicted by latent constructs representing interpersonal dependence and avoidance strategies (including attachment anxiety and avoidance). Section III – Second Empirical study The third section of the thesis builds on the first study by exploring the role of attachment in a clinical sample of individuals in the first year of treatment for a first episode psychosis, recruited from early intervention services in Glasgow and Edinburgh. The study utilises a cross-sectional cohort design (Chapter 7). The sample is characterised in terms of symptomatology, quality of life, DUP, help-seeking, premorbid adjustment, psychological variables, attachment states of mind (using the AAI) and mentalisation (Chapters 8). Premorbid adjustment and DUP are included to facilitate investigation of the relationships outlined in Chapter 3. Levels of psychotic symptomatology and the median DUP were all comparable with contemporary FEP cohort studies. Contrary to the findings of Chapter 3, results of the study with regard to premorbid adjustment suggest that this construct is significantly correlated with DUP, particularly in the social domain, in the direction of poorer adjustment associating with longer DUP,. Poorer premorbid social adjustment was significantly associated with greater negative symptoms and greater general psychopathology. Poorer premorbid adjustment was not associated with help-seeking, but was associated with poorer engagement with services after initiation of treatment. Longer DUP was not associated with greater positive symptomatology, or poorer engagement, but was associated with more help-seeking (Chapter 9). Attachment and mentalisation (RF) was investigated in a sub-sample of the main cohort. In contrast to chronic psychosis samples, both secure and insecure Attachment classifications were found in the FEP sample. Both secure and insecure/preoccupied attachment classifications were associated with higher RF. Attachment and RF were not related to psychotic symptomatology. However, higher RF was associated with poorer psychological quality of life. No significant relationships emerged between attachment and premorbid adjustment, DUP or help-seeking. No relationships between these variables emerged for RF. Attachment (but not RF) was significantly related to engagement, with secure attachment being associated with better engagement, and insecure/preoccupied attachment being associated with poorer engagement (Chapter 10). Section IV – Discussion The thesis represents a comprehensive assessment of theoretical links between attachment and psychosis, encompassing both phenomenological and clinical variables. The analogue study demonstrates the validity of the link between attachment and psychotic phenomenology, albeit limited by the use of self report measures of attachment. The clinical study is the first characterisation in Scotland of an FEP sample recruited from an early intervention cohort. The limitations of the clinical study are discussed in terms of small sample size, risk of Type I and II errors, and possible selection bias with regard to the attachment sub-sample. The low incidence of Unresolved attachment representations is also acknowledged. Theoretical implications of both studies are discussed in terms of the repositioning affect as an important factor in psychosis and the role of psychodevelopmental factors (including attachment, mentalisation and premorbid adjustment) in influencing onset and adaptation to psychosis. Clinical implications are discussed with regard to possible links with recovery trajectories, integrating attachment principles into treatment, and links to primary prevention of mental health problems in general (Chapter 11).

APA, Harvard, Vancouver, ISO, and other styles

21

Biggs, Manus Jonathan Paul. "The influence of nanotopographical structures on osteoblast adhesion formation and the functional response of mesenchymal stem cell populations." Thesis, University of Glasgow, 2009. http://theses.gla.ac.uk/552/.

Full text

Abstract:

It is predicted that the percentage of persons over 50 years of age affected by bone diseases will double by 2020 (Navarro et al., 2008). Clearly this represents a need for permanent, temporary or biodegradable orthopaedic devices that are designed to substitute or guide bone repair. Polymeric medical devices are widely used in orthopaedic surgery and play a key role in fracture fixation and in areas of orthopaedic implant design. Initial uncertainty regarding the adequacy of polymeric materials to withstand functional stresses obliged clinicians to implement these biomaterials in non-load-bearing applications such as fixation of the maxillofacial skeleton. Strategies to guide bone repair, have included topographical modification of these devices in an attempt to regulate cellular adhesion, a process fundamental in the initiation of osteoinduction and osteogenesis. Advances in fabrication techniques have evolved the field of surface modification and, in particular, nanotechnology has allowed the development of experimental nanoscale substrates for the investigation into cell-nanofeature interactions. This thesis is concerned with the study of nanotopographical structures on osteoblast adhesion and mesenchymal stem cell (MSC) function, with an aim to improving the functionality of orthopaedic craniomaxillofacial devices. In this study primary human osteoblast (HOBs) were cultured on nanoscale topographies fabricated by lithographic and phase separation techniques in poly(methyl methacrylate) (pMMA). Adhesion subtypes in HOBs were quantified by immunofluorescent microscopy and cell-substrate interactions investigated via immunocytochemistry with scanning electron microscopy. To investigate the effects of these substrates on cellular function 1.7 K microarray analysis was employed to study the changes in gene profiles of enriched MSC populations cultured on these nanotopographies. Nanotopography differentially affected the formation of adhesions in HOBs and induced significant changes in genetic expression of MSCs on experimental substrates. Nanopit type topographies fabricated by electron beam lithography were shown to inhibit directly the formation of large adhesion complexes in HOBs and induce significant down-regulation of canonical signalling and functional pathways in MSCs. Nanocrater and nanoisland type topographies fabricated by polymer demixing however reduced adhesion formation and induced up-regulation of osteospecific pathways. Nanogrooved topographies fabricated by photolithography influenced HOB adhesion formation and MSC osteospecific function in a manner dependant on the groove width. The findings of this study indicate that nanotopographical modification significantly modulates both osteoblast adhesion and MSC function, implicating topographical modification as a viable strategy to enhance orthopaedic device functionality.

APA, Harvard, Vancouver, ISO, and other styles

22

D'Souza, Barnabe. "Changing mindsets? : evolution of a rehabilitation programme for chemically dependent male street adolescents in a major Indian city." Thesis, Coventry University, 2008. http://eprints.worc.ac.uk/512/.

Full text

Abstract:

Inhalant abuse is a pervasive, yet under-recognized fonn of substance abuse that crosses demographic, ethnic and socioeconomic boundaries, causing significant morbidity and mortality in school-aged and older children. Internationally, inhalant abuse is rampant among street children in many urban centers, in both developed and developing countries, and represents a global health issue. WHOestimates that globally, 25%to 90% of street children indulge in substance use (WHO, 1997). India accounts for the highest number of street children in the world. The transient nature of this population renders it difficult to quote exact numbers, but estimates range from 11 million (UNICEF, 1994) to around 18 million (Human Rights Watch, 1996). Running away exposes children to stressful life on the streets, which accompanied by lack of parental care and supervision and easy access to intoxicating substances, creates an atmosphere conducive ~, for indulging in substance use. Astudy of substance abuse among street children in Delhi in 2002 revealed that about 57% of street children between the ages of6 and 16 had indulged in some form of substance abuse, the agents of choice being nicotine (44.5%) and inhalants (24.3%). Even more disturbing was the fact that the minimum age at starting substance abuse was 5.5 years. Little research exists concerning treatment needs and successful treatment modalities specific to inhalant users. As with other types of substance abuse, the most effective way to curtail use is through broad prevention efforts. Limiting the availability of volatile substances is impractical, because they constitute products that are universally available, legal and have legitimate uses. Primary prevention is through education paired with skills-building, working with families, schools, communities, media and other potential change agents. Prevention programs also include community readiness models, street outreach programs, drop-in and residential treatment centers, and individual, group, and family counseling in a variety of settings. Residential treatment has not been a sufficient response to widespread inhalant abuse. My experience in the field suggested that working on changing the mindsets of male street inhalant abusers had the potential to bring about sustained behavioural change. In an effort to portray children's own voices as citizens and their capabilities as agents of change, I have utilised participatory action research that incorporated feedback from the field into the development ofpractical interventions and investigated treatment models (such as cognitivebehavioral therapy) effective for adolescents. My practice has been reflective, embedded in the circumstances of children's lives and issues and responsive to changing needs. -0 Myresearch has demonstrated that a paradigmatic shift can take place in street inhalant abusers through a guided thought process, essential for informed choice. This cognitive process has helped the street inhalants make the transition from a mindset dominated by instant gratification, living for the day and impulsive decision making to a well-thought-out, reflective and cognitive approach. This research has reconfirmed my belief that sustained cognitive inputs can bring about and identity change and long term behavioural changes provided the adolescents have strong positive intentions, efforts and motivations to change their situations within a friendly, guided environment.

APA, Harvard, Vancouver, ISO, and other styles

23

Petersen, Alexandros. "Integration in energy and transport amongst Azerbaijan, Georgia and Turkey." Thesis, London School of Economics and Political Science (University of London), 2012. http://etheses.lse.ac.uk/532/.

Full text

Abstract:

A limited process of integration has been occurring amongst the countries of Georgia, Azerbaijan, and Turkey. From the mid-1990s to 2008, integration amongst the three countries has occurred in the energy and transport sectors, but not in other sectors, such as security, politics or trade beyond energy and transport. In the energy sector, this integration can be explained through neo-liberal institutionalist theory. Integration in the transport sector occurs due to a mixture of elements from the neo-liberal institutionalist, security communities and neo-functionalist theories of integration. In both sectors, transnational extra-regional actors (TERAs) are the explanatory variable in the integration.

APA, Harvard, Vancouver, ISO, and other styles

24

El, Shinnawy Azza. "Understanding the impact of protection on manufacturing efficiency levels and relative pharmaceutical prices evidence from Egypt's generics pharmaceutical industry (1993-2008)." Thesis, London School of Economics and Political Science (University of London), 2012. http://etheses.lse.ac.uk/542/.

Full text

Abstract:

This thesis aims at contributing to the literature on industrial policy by investigating patterns of 'association' between trade and industrial policies, the country’s national pharmaceutical policy (including pricing), the pre-January 2005 intellectual property rights regime, productivity and productivity growth in the Egyptian generics pharmaceutical sector. This thesis presented evidence that positive total factor productivity (TFP) growth can be observed under the auspices of a protectionist regime, however, there is a need to revisit pharmaceutical regulatory protectionism, as it impacts negatively on export growth and on fair pharmaceutical prices. Under the auspices of what can be categorised as a protectionist regulatory regime, this thesis examined trends in TFP growth in 13 of Egypt's pharmaceutical generics firms, which account for 50 percent of the generics market by value. Empirical results indicated that the best-practice firm in terms of TFP change belonged to the private sector, while the laggard firm belonged to the state-owned public business sector. Empirical results indicated that mean TFP change for the sample firms throughout the study period 1993-2005 (1.01) exceeded the mean TFP change for all Egyptian industries (0.75), and that there was evident disassociation or weak correlation -at best- between productivity growth and the degree of export orientation. In light of both the absence of significant generics import competition in Egypt, it has been found that prices of generics were atypical in terms of exceeding standard worldwide generic-to-originator price ratios. Generic diffusion did not significantly bring down average prices, while an evident wedge was observed between the market shares of the most sold generics versus the least-priced generics to the advantage of the former. As a result of enforcing pharmaceutical product patent protection as of January 2005, the price-related impact of the TRIPS Agreement in the domain of Egypt’s top 42 therapeutic classes by market value (50 percent of the market), has been put in the range of LE 479 million.

APA, Harvard, Vancouver, ISO, and other styles

25

Deb, Pragyan. "Essays on the impact of competition on financial intermediaries." Thesis, London School of Economics and Political Science (University of London), 2012. http://etheses.lse.ac.uk/552/.

Full text

Abstract:

The aim of my thesis is to investigate the effect of competition on financial intermediaries in light of the conflicts of interest and perverse incentive structures that exist in the financial system. The first chapter of my thesis, Credit Rating and Competition investigates the conflict of interest arising from the issuer pay compensation model of the credit rating industry using a theoretical model of competitive interaction. Rating agencies balance the benefits of maintaining reputation (to increase profits in the future) and inflating ratings today (to increase current profits). Our results suggest that, unless new entrants have a higher reputation vis-a-vis incumbents, rating agencies are more likely to inflate ratings under competition relative to monopoly, resulting in lower expected welfare. The second chapter, Market Frictions, Interbank Linkages and Excessive Interconnections, studies banks' decision to form financial interconnections. I develop a model of financial contagion that explicitly takes into account the possibility of crisis. This allows me to model the network formation decision as optimising behaviour of competitive banks. I show that regulatory intervention in the form of deposit insurance and more implicit too big to fail type perceptions of government guarantees creates a wedge between social and private optimality. In the presence of these implicit and explicit guarantees, competitive banks find it optimal to form socially suboptimal interconnections in equilibrium. The final chapter, Competition, Premature Trading and Excess Volatility, attempts to explain the empirically observed excess asset price volatility as a consequence of competitive interaction between market participants. Our model shows that in the presence of competitive pressures, market participants find it optimal to act prematurely on unverified, noisy information. This premature reaction leads to lower total profits, excess market volatility and spike in volatility at the closing time of the market.

APA, Harvard, Vancouver, ISO, and other styles

26

Wu, Wenjie. "Empirical essays on real estate, local public goods and happiness : evidence from Beijing." Thesis, London School of Economics and Political Science (University of London), 2012. http://etheses.lse.ac.uk/582/.

Full text

Abstract:

This thesis explores the real estate and happiness consequences of public investment in local public goods improvements by using unique micro-geographical data from Beijing; it focuses on the spatial variations in park amenity values, and on the impact of transport improvements on land prices and homeowners’ happiness. Despite intense public interest, little is known about these effects. This thesis aims to fill these gaps. First, I explore the impact and sources of variations of park proximities as capitalized into the residential land prices. This analysis, using geographically-coded data from Beijing, provides new insights on the ways in which land markets capitalize the values of proximity to parks and suggests that this is highly dependent on the parcel’s location and local contextual characteristics. Next, I examine the real estate consequence of public investment in transport improvements using a rich data set of vacant land parcels in Beijing. I use a multiple intervention difference-in-difference method to document opening and planning effects of new rail stations on prices for different land uses in affected areas versus unaffected areas. Residential and commercial land parcels receiving increased station proximity experience appreciable price premiums, but the relative importance of such benefits varies greatly over space and local demographics. Finally, I investigate the impact of transport improvements on happiness that altered the residence-station distance for some homeowners, but left others unaffected. My estimation strategy takes advantage of micro happiness surveys conducted before-and-after the building of new rail stations in 2008 Beijing. I deal with the potential concern about the endogeneity in sorting effects by focusing on “stayers”and using non-market housings with pre-determined locations. I find the significantly heterogeneity in the effects from better rail access on homeowners’ happiness with respect to different dimensions of residential environment. The welfare analysis results suggest strong social-spatial differentiations. In combination, the three papers of this thesis make important contributions to a growing literature on public infrastructure, land market and happiness.

APA, Harvard, Vancouver, ISO, and other styles

27

Anton, Sancho Miguel. "Three essays on the comovement of financial assets." Thesis, London School of Economics and Political Science (University of London), 2011. http://etheses.lse.ac.uk/502/.

Full text

Abstract:

In this thesis I study the effects of institutional trading on the comovementof financial assets. In the first chapter, joint work with Christopher Polk, we connect stocks through common active mutual fund ownership, and use these connections to forecast cross-sectional variation in return covariance, controlling for similarity in style and other pair characteristics. We argue this covariance is due to contagion based on return decomposition evidence, cross-sectional heterogeneity in the extent of the effect, and the magnitude of average abnormal returns to a cross-stock reversal trading strategy exploiting information in these connections. We show that the typical long/short hedge fund covaries negatively with this strategy suggesting that hedge funds may potentially exacerbate the price dislocation we document. In the second chapter I study the sources of change in the systematic risks of stocks added to the S&P 500 index. Firstly, using vector autoregressions (VARs) and a two-beta decomposition, I find that I cannot reject the hypothesis that all of the well-known change in beta comes from the cash-flow news component of a firm's return. Secondly, I study fundamentals of included firms directly to reduce any concerns that the VAR-based results are sensitive to my particular speciffcation. As ownership structure cannot directly influence fundamentals, these results challenge previous findings, as they are consistent with the change in beta being due to a selection effect. In the third chapter, joint work with Daniel Bergstresser, we explore index-based comovement in the market for Credit Default Swaps (CDS). We exploit the additions of individual CDS contracts in the Markit CDX Index, a major credit derivative benchmark. We find that for single name CDS contracts, comovement increases after inclusion in the index. Comparing movements in the CDS spreads to movements of the bonds of the same issuers, the CDS spread comovement increases significantly more than the bond spread comovement. This pattern of evidence is consistent with the excess comovement in equity markets documented by Barberis et al (2005) and others.

APA, Harvard, Vancouver, ISO, and other styles

28

Bracke, Philippe. "Prices, rents, and homeownership : three essays on housing markets." Thesis, London School of Economics and Political Science (University of London), 2012. http://etheses.lse.ac.uk/512/.

Full text

Abstract:

This thesis includes three self-contained chapters whose common theme is the analysis of house price and rent movements, and how these movements influence the economic actions of individuals. In Chapter 1, I analyse a micro dataset on housing sales and rentals in Central London. I show that the ratio between prices and rents differ across property types: bigger and better located properties have higher price-rent ratios. These differences in price-rent ratios can be explained through a hedging model where households avoid rent risk by increasing their demand for homeownership. Consistently with this hypothesis, I find that rental prices for bigger properties and properties in more expensive neighbourhoods are not growing significantly faster than for other properties, but are more volatile. In Chapter 2, together with my two co-authors Christian Hilber and Olmo Silva, I study the relationship between homeownership and entrepreneurship by exploiting the longitudinal dimension of the British Household Panel Survey (BHPS) and constructing a detailed monthly-spell dataset that tracks individuals' job histories and tenure choices, coupled with other time-varying characteristics. Our fixed-effect estimates show that purchasing a house reduces the likelihood of starting a business by 20-25%. This result is driven by homeowners with mortgages and persists for several years after entering homeownership. The negative relationship can be rationalised by portfolio considerations: leveraged housing investments crowd out entrepreneurial investments. Alternative explanations based on credit constraints find little support in our data. In Chapter 3, I analyse the duration of house price upturns and downturns in the last 40 years for 19 OECD countries and provide two results. First, upturns display duration dependence: they are more likely to end as their duration increases. Second, downturns display lagged duration dependence: they are less likely to end if the previous upturn was particularly long. Both these facts are consistent with a boom-bust view of housing price dynamics, where booms represent departures from fundamentals that are increasingly difficult to sustain, and busts serve as readjustment periods.

APA, Harvard, Vancouver, ISO, and other styles

29

Wolff, Johannes. "Enhanced rationalisation, control or coordination? : impact assessments in the European Union." Thesis, London School of Economics and Political Science (University of London), 2012. http://etheses.lse.ac.uk/522/.

Full text

Abstract:

Impact assessment (IA) has attracted considerable attention in the worlds of research and practice. IA is discussed extensively and promoted widely as a means to enhance the rationalisation, control and coordination of policy-making. However, at the same time, there has also been disagreement based on whether IL is seen to reflect one single, or multiple rationales. This has, in turn, led to debates about whether particular IA experiences reflect one or a mixture of motives. This thesis therefore explores whether the different ambitions or logics that IA intends to promote can be seen as complementary, whether one dominates, or whether they are contradictory. By looking at the European Union’s IA system — through an in-depth study of five IAS — this thesis finds that while the logic of enhanced control plays a dominant role throughout the policy-making process — particularly during the later policy-making stages — the ambitions or logics of enhanced rationalisation and coordination also play distinct roles. This thesis thereby contributes to the debates about the use of 'meta-instruments' to address the three policy challenges of how to choose the 'best' policy option; how to steer public administrations; and how to coordinate policies across institutional sub-units. In doing so, the thesis departs from earlier studies on IA two significant ways. First, it examines IA as a set of procedural rules, therefore moving away from a focus on the role of the IA report in advancing (or failing to advance) the ambitions of enhanced control, rationalisation or coordination. Second, instead of examining each IA ambition or logic in isolation, this thesis acknowledges a multiplicity of ambitions. This multiplicity is not an aspect of diffusion across jurisdictions or because of policy 'context'; rather, it is a feature of the motives and ambitions of actors interacting and changing at different stages in the policy-making process.

APA, Harvard, Vancouver, ISO, and other styles

30

Vernazza, Daniel. "Essays on the causes of migration." Thesis, London School of Economics and Political Science (University of London), 2012. http://etheses.lse.ac.uk/562/.

Full text

Abstract:

This thesis consists of three chapters. All three are linked by our desire to better understand the determinants of labour migration; that is, the motivation for a person to change his or her location of residence for a period of at least a year. While immigration receives much public discourse, the economic evidence on how migrants self-select is still lacking. In particular, we have little evidence on the relative importance of determinants. We focus on three areas that have received substantially less attention in the migration literature: the importance of relative versus absolute income motives for migration; the effect of wealth and intertemporal choice on return migration; and the role of place attachment as an obstacle to labour mobility. Common to all three chapters is an emphasis on counterbalancing forces that tend to offset spatial income differentials in determining migration. The ﬁrst chapter examines the extent to which relative income – that is, one’s position in the income distribution – matters in migration choice. Virtually all studies of migration focus on absolute income. This is at odds with the mounting evidence that suggests people care about their relative position in the income distribution. We argue that, in order to test between the absolute income and relative income theories of migration, one needs individual-level panel data on before and after migration outcomes. Indeed, since one has to estimate counterfactual migrant earnings of non-migrants, if migrants are selected on unobservables then cross-sectional estimates will systematically bias the predicted migrant earnings of non-migrants. We estimate the relative importance of the two main theories in explaining interstate migration in the U.S. using a panel of individuals. Relative income is calculated with respect to those persons in the same U.S. state. We ﬁnd that, although migration leads to a substantial rise in absolute income, the trigger for migration is low relative income and not low absolute income. In the second chapter we show analytically that, under some conditions, return migration is optimal. We build a model where consumers choose either to never migrate, permanently migrate or, migrate and subsequently return. To generate an incentive for return migration, the model assumes a nominal income differential between the source and destination and a compensating differential – which exerts a counterbalancing force to the income differential. Examples of compensating differentials may include differences between the source and destination in climate, place attachment, price levels, unemployment and average consumption. We characterise the optimal migration decision space with respect to the three key variables: initial wealth, the income differential and the compensating differential between the source and destination. The marginal utility of consumption is assumed to be location-dependent due to a non-separable nonpecuniary preference for the source. Consequently, when the region with the best economic opportunities is not the source region, there is a trade-off between income maximisation on the one hand and the marginal utility of consumption on the other. We ﬁnd that, all else equal, those with low wealth are more likely to migrate and, conditional on migration, those with higher wealth are more likely to return migrate. The third chapter seeks to estimate a key obstacle to migration: place attachment. Place attachment refers to the emotional bonds a person feels towards the place (or area) he or she resides. We estimate place attachment within a tructural model of spatial job search where migration is a by-product of accepting a job offer from another region. The chapter can broadly be split into two parts. The ﬁrst takes a standard job search model and adapts it to allow search in many potential destinations. Acceptance of an offer from a destination necessarily involves migration to that destination and its associated costs. We consider two types of costs: a cost of migration that is related to distance-to-destination and a non-pecuniary cost of leaving the current region. The latter is deemed to be the negative of place attachment. In the second part, we estimate the structural model for a sample of individual durations in a U.S. state. Our estimates suggest that place attachment is steeply increasing in duration for our reduced-form model; however, the opposite is true for our structural model. We also ﬁnd that for half the population, the dollar values of place attachment are prohibitively large.

APA, Harvard, Vancouver, ISO, and other styles

31

Bazzocchi, Valentina <1976&gt. "I diritti fondamentali nello spazio di libertà, sicurezza e giustizia dell'Unione Europea." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/502/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Helfer-Fleischhauer, Jens [Verfasser]. "Degree Gradation of Verbs / Jens Fleischhauer ; DFG-Sonderforschungsbereich 991." Düsseldorf : düsseldorf university press GmbH, 2016. http://dup.oa.hhu.de/522/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

nola, Oluremilekun Adunola Oluremilekun. "The inter-relationship between organisational culture and workplace stress : an empirical study of the Nigerian banking sector." Thesis, University of Surrey, 2006. http://epubs.surrey.ac.uk/592/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Reader, Diana. "Entrepreneurship research : evidence of the intellectual, social and collaborative nature of the domain." Thesis, Southampton Solent University, 2005. http://ssudl.solent.ac.uk/592/.

Full text

Abstract:

This thesis explores the intellectual social and collaborative nature of the domain of entrepreneurship in two related ways. First it uses bibliometric techniques to investigate the constitution of entrepreneurship. Specifically, author co-citation analysis establishes a collective view of the structure of the entrepreneurship literature - as perceived by its research active members. The co-citation frequencies of 78 prominent entrepreneurship researchers were analyzed using multivariate techniques. Cluster Analysis and Multidimensional Scaling were used to explore the intellectual structure of entrepreneurship research by identifying groups of scholars whose work falls into similar areas. Factor Analysis was then used to identify the underlying themes that characterize the domain. Second, the scholars within these nominal groupings were approached using individualiozed questionnaires to explore what social interactions might parallel, reflect or underpin the intellectual ones. The research is original in its contribution as this is the first time the technique of author co-citation analysis has been applied in the domain of entrepreneurship. To apply author co-citation analysis ito a relatively immature, emerging domain of study is, in itself, original and tests the technique in a new and experimental way. Additionally, the use of qualitative data - based on the results of the author co-citation analytis - validates and yields further insight into the initial results thus advancing the terchnique in the bibliometrics domain. The study demonstrates that there are real and robust social and collaborative networkd underlying the generation of the intellectual work which is cited jointly, by third parties. The latter authors may be unaware of these networks. Equally, the co-cited authors, while recognizing overlapping interests, may have difficulty in categorizing this commonality in their contributions. Entrepreneurship research is shown to be very much a social activity. As a whole, the thesis offers a novel insight into the nature of entrepreneurship derived from the domain's citing population.

APA, Harvard, Vancouver, ISO, and other styles

35

Camilloni, Cristian. "Studio di elementi nodali della viabilità di Marotta-Mondolfo." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amslaurea.unibo.it/522/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Savelli, Elisa. "Carbon footprint, stato dell'arte ed applicazione pilota." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amslaurea.unibo.it/552/.

Full text

Abstract:

Lo strumento in esame è il carbon footprint che ha lo scopo primario di calcolare l’impronta rilasciata in atmosfera dalle emissioni di gas ad effetto serra. Il carbon footprint è stato descritto ed esaminato in ogni suo aspetto pratico, strutturale e funzionale evidenziandone sia pregi da tenere in considerazione sia limiti da colmare anche attraverso il ventaglio di strumenti di misurazione ambientale che si hanno a disposizione. Il carbon footprint non verrà descritto unicamente come strumento di contabilità ambientale ma anche come mezzo di sensibilizzazione del pubblico o dei cittadini ai temi ambientali. Questo lavoro comprende un’indagine online degli strumenti di misura e rendicontazione delle emissioni di CO2 che sono sotto il nome di carbon footprint o carbon calculator. Nell’ultima parte della tesi si è applicato ad un caso reale tutto quello che è stato appreso dalla letteratura. Il lavoro è consistito nell’applicare lo strumento del carbon footprint ad un’azienda italiana di servizi seguendo la metodologia di calcolo prevista dalla norma ISO 14064. Di essa sono state contabilizzate le emissioni di CO2 generate dalle attività quotidiane e straordinarie sulle quali l’azienda ha un controllo diretto o comunque una responsabilità indiretta.

APA, Harvard, Vancouver, ISO, and other styles

37

Petretto, Francesco. "Studio sperimentale di metodologie di ripristino e controllo degli scavi in trincea per reti di servizi urbani." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amslaurea.unibo.it/572/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Andraghetti, Elisa. "Stabilimenti a rischio di incidente rilevante: valutazione della vulnerabilità ambientale." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amslaurea.unibo.it/582/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Armstrong, John Patrick. "'Lyric realism' to 'Epic consciousness' poetic subjectivity in the work of Eward Dorn /." Connect to e-thesis, 2008. http://theses.gla.ac.uk/502/.

Full text

Abstract:

Thesis (Ph.D.) - University of Glasgow, 2008.
Ph.D. thesis submitted to the Department of English Literature, Faculty of Arts, University of Glasgow, 2008. Includes bibliographical references. Print version also available.

APA, Harvard, Vancouver, ISO, and other styles

40

Finer, Ella Jean. "How can the solo female performer be rendered present through absence?" Connect to e-thesis. Edited version, 2009. http://theses.gla.ac.uk/542/.

Full text

Abstract:

Thesis (MPhil(R))--University of Glasgow, 2009.
MPhil(R) thesis submitted to the Faculty of Arts, Department of Theatre, Film and Television Studies, University of Glasgow, 2009. Includes bibliographical references. Print version also available.

APA, Harvard, Vancouver, ISO, and other styles

41

Allison, Anthony. "Latin Christian theological & historical perceptions of Islam, 1100-2000." Thesis restricted. Connect to e-thesis to view abstract. Move to record for print version, 2008. http://theses.gla.ac.uk/562/.

Full text

Abstract:

Thesis (M.Th.(R)) - University of Glasgow, 2008.
M.Th.(R) submitted to the Faculty of Arts, Department of Theology and Religious Studies, University of Glasgow, 2008. Includes bibliographical references. Print version also available.

APA, Harvard, Vancouver, ISO, and other styles

42

P, Laiginhas Fernando A. T. "Diamonds from the ural mountains their characteristics and the mineralogy and geochemistry of their inclusions /." Connect to e-thesis, 2008. http://theses.gla.ac.uk/512/.

Full text

Abstract:

Thesis (Ph.D.) - University of Glasgow, 2008.
Ph.D. thesis submitted to the Faculty of Physical Sciences, Department of Geographical and Earth Science, University of Glasgow, 2008. Includes bibliographical references. Print version also available.

APA, Harvard, Vancouver, ISO, and other styles

43

Marchionni, Cosetta <1972&gt. "Trombocitopenia con assenza del radio (sindrome TAR): verifica funzionale di due mutazioni nella regione del promotore del TGFβ2 e studio delle cellule staminali mesenchimali." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/512/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Biagini, Elena <1973&gt. "Storia naturale e stratificazione prognostica della cardiomiopatia ipertrofica: nuove acquisizioni." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/522/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Mitrotti, Fabio <1974&gt. "Governance territoriale e difesa dell'ambiente per uno sviluppo sostenibile. Alcuni casi a confronto." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/532/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Butenschon, Momme <1973&gt. "Numerical simulations of the coastal marine ecosystem dynamics: integration techniques and data assimilation in a complex physical-biogeochemical model." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/552/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Cerri, Andrea <1978&gt. "Stability and computation in multidimensional size theory." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/562/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Brizzi, Riccardo <1978&gt. "Il leader e la televisione: il caso de Gaulle (1958-1965)." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/572/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Ghiribelli, Claudia <1971&gt. "La terapia multimodale nel trattamento del mesotelioma pleurico maligno." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/582/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Magliulo, Maria <1976&gt. "Innovative immunoassay formats for the detection of food contaminants and pathogenic bacteria." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/592/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic '5O2'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles