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Dissertations / Theses on the topic 'Migration modelling'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Sylta, Øyvind. "Hydrocarbon migration modelling and exploration risk." Doctoral thesis, Norwegian University of Science and Technology, Department of Geology and Mineral Resources Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-1492.

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2

Jefferyes, Samuel D. R. "Modelling shape fluctuations during cell migration." Thesis, University of Warwick, 2014. http://wrap.warwick.ac.uk/70995/.

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Cell migration is of crucial importance for many physiological processes, including embryonic development, wound healing and immune response. Defects in cell migration are the cause of chronic in ammatory diseases, mental retardation and cancer metastasis. Cell movement is driven by actin-mediated cell protrusion, substrate adhesion and contraction of the cell body. The emergent behaviour of the intracellular processes described above is a change in the morphology of the cell. This inspires the main hypothesis of this work which is that there is a measurable relationship between cell morpholog

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3

Haseloff, Marianne. "Modelling the migration of ice stream margins." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/54268.

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The Siple Coast ice streams are long, narrow bands of ice within the Antarctic ice sheet. They move significantly faster than the surrounding ice ridges, and therefore discharge significantly more ice. Observations suggest that their fast flow is due to sliding along a water-saturated bed, while the bed of the neighbouring ridges generally appears to be frozen. The ice stream velocities and widths vary on decadal to centennial time scales, and these variations include the migration of the ice stream margins, where the fast flow slows down to the speed of the surrounding ice. In this thesis

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4

Thomson, Noel. "Bayesian mixture modelling of migration by founder analysis." Thesis, University of Glasgow, 2010. http://theses.gla.ac.uk/1468/.

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In this thesis a new method is proposed to estimate major periods of migration from one region into another using phased, non-recombined sequence data from the present. The assumption is made that migration occurs in multiple waves and that during each migration period, a number of sequences, called `founder sequences', migrate into the new region. It is first shown through appropriate simulations based on the structured coalescent that previous inferences based on the idea of founder sequences sufer from the fundamental problem that it is assumed that migration events coincide with the nodes

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5

Woods, M. L. "Modelling collective cell migration of the neural crest." Thesis, University College London (University of London), 2014. http://discovery.ucl.ac.uk/1419714/.

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Collective cell migration is a fundamental process, occurring during embryogenesis and cancer metastasis. Neural crest cells exhibit such coordinated migration, where aberrant motion can lead to fatality or dysfunction of the embryo. Migration involves at least two complementary mechanisms: contact inhibition of locomotion (a repulsive interaction corresponding to a directional change of migration upon contact with a reciprocating cell), and co-attraction (a mutual chemoattraction mechanism). The thesis explores three different types of models to understand collective cell migration of the neu

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6

Ng, Alexander CB. "Decision Modelling and Optimization for Enterprise Migration to Clouds." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31719.

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Many enterprises are currently exploring the possibility of migrating some or all of their IT functionalities to public clouds with the objective of reducing their overall IT service costs or to open new business frontiers. Unfortunately, making such a decision is not a straightforward task; it requires a vigorous evaluation of the various benefits, risks and costs associated with the migration of their diverse business processes that comprise of their current IT services. Yet, this problem has received very little attention in the literature, mainly due to its interdisciplinary nature. This

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7

Ross, Robert. "Modelling cell migration, proliferation and interactions on growing domains." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:0d176c76-2b4d-4101-ba2d-f657df620350.

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Motile and proliferative cell populations in growing tissues are a common feature of mammalian embryonic development. The aim of the work presented in this thesis is to develop models that better describe the behaviour of motile and proliferative cell populations on growing domains. We motivate our study by investigating the behaviour of melanoblasts, a migratory and proliferative cell population responsible for fur pigmentation in the embryonic mouse. We then develop mathematical models to describe cell populations with cell-cell interactions such as adhesion and repulsion, cell populations w

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8

Silva, Clara Araújo Sena da. "Numerical modelling of radionuclide migration in near-surface systems." Doctoral thesis, Universidade de Aveiro, 2009. http://hdl.handle.net/10773/2754.

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Doutoramento em Geociências<br>Em todo o mundo são usados, hoje em dia, modelos numéricos hidrogeoquímicos para simular fenómenos naturais e fenómenos decorrentes de actividades antrópicas. Estes modelos ajudam-nos a compreender o ambiente envolvente, a sua variabilidade espacial e evolução temporal. No presente trabalho apresenta-se o desenvolvimento de modelos numéricos hidrogeoquímicos aplicados no contexto do repositório geológico profundo para resíduos nucleares de elevada actividade. A avaliação da performance de um repositório geológico profundo inclui o estudo da evolução geoquímic

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9

Koliopoulos, Telemachus C. "Numerical modelling of landfill gas and associated risk assessment." Thesis, University of Strathclyde, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248335.

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10

Nolan, Michael. "Mathematical methods for the modelling of cell migration and chemotaxis." Thesis, University of Strathclyde, 2018. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=30286.

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Numerical methods are developed for the study of cell migration and chemotaxis with specific focus on reaction-diffusion based models on moving domains. This thesis focuses building on the previous model of cell migration and chemotaxis introduced by Neilson et al [105]. It does this by introducing new and discussing existing numerical methods in a cell migration and chemotaxis context. A new approach to the solution of forced mean curvature flow is introduced in the form of a moving mesh partial differential equation (MMPDE). This MMPDE is split into two partial differential algebraic equatio

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11

Liu, Qingfeng. "Multi-phase modelling of multi-species ionic migration in concrete." Thesis, University of Plymouth, 2014. http://hdl.handle.net/10026.1/3133.

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Chloride-induced corrosion of reinforcing steel in concrete is a worldwide problem. In order to predict how chlorides penetrate in concrete and how other ionic species in con-crete pore solution affect the penetration of chlorides, this thesis presents a numerical study on multi-phase modelling of ionic transport in concrete dominated by migration process. There are many advantages in rapid chloride migration test (RCM) method and numeri-cal approach. However, most of models in the literature predicting chloride diffusivity in concrete are diffusion models, which not consider the action of ext

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12

Guo, Guanlong. "Coupled Hydro-Mechanical Modelling of Gas Migration in Saturated Bentonite." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/41552.

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Bentonite is regarded as an ideal geomaterial for the engineering barrier system of a deep geological repository (DGR) where nuclear wastes are disposed, as it has several desirable properties for sealing the nuclear wastes, including low permeability, low diffusion coefficient, high adsorption capacity and proper swelling ability. Nevertheless, gas migration in saturated bentonite may undermine the sealing ability of the geomaterial. Previous experimental studies showed that the gas migration process is accompanied by complex hydromechanical (HM) behaviors, such as gas breakthrough phenomenon

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13

Wu, Kejian. "Numerical modelling of groundwater flow and radioactive waste migration : Sellafield, England." Thesis, University of Glasgow, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366127.

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14

Moro, Domenico. "Modelling economic effects of international retirement migration within the European Union." Thesis, University of Warwick, 2007. http://wrap.warwick.ac.uk/2584/.

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International retirement migration (IRM) is a growing and significant feature of the European Union. It has important economic implications in terms of the redistribution of social costs, factors reward and incomes. Using overlapping generations models and simulation techniques this thesis focuses on the economic effects of International Retirement Migration (IRM) within the European Union (EU). Three main parts make up this thesis. The first part summaries the legal and the social framework within the European Union where IRM takes place. Access to European welfare system is based on the prin

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15

West, Christopher. "Modelling migration and aggregation : applications in fisheries, environmental change, and evolution." Thesis, University of York, 2010. http://etheses.whiterose.ac.uk/1336/.

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Commercially important fish stocks worldwide are in danger of collapse due to fisheries exploitation compounded by environmental change. Many species exhibit seasonal migratory homing behaviour to and from spawning grounds. In this thesis, models are developed to explore the consequences of migratory behaviour and spatial structure on fisheries management and responses to environmental change. Initially, a simple population model of a migratory fish population is presented. Migration occurs between an exploited feeding area and a protected spawning area in which no fishing occurs (a marine pro

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16

Khoylou, Naysan. "Modelling of moisture migration and spalling behaviour in non-uniformly heated concrete." Thesis, Imperial College London, 1997. http://hdl.handle.net/10044/1/7317.

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17

Coumoulos, H. "Centrifuge and numerical modelling of dense non aqueous phase liquid contaminants migration." Thesis, University of Cambridge, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598067.

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This dissertation investigates DNAPL contaminant migration in saturated soil, focusing on the special problem of its migration in inclined layered soil profiles. It begins by describing the parameters affecting multiphase flow in porous media in general and then DNAPL contaminants in particular. A series of 12 centrifuge tests was designed and carried out at the Schofield Centrifuge Centre using the 10m beam centrifuge. DNAPL was injected in two-dimensional soil models with an inclined interface. The main varying parameters were the materials and the interface inclinations. A unique pattern of

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18

Carruthers, Daniel J. F. "Transport modelling of secondary oil migration using gradient-driven invasion percolation techniques." Thesis, Heriot-Watt University, 1998. http://hdl.handle.net/10399/1250.

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19

Depountis, Nikos. "Geotechnical centrifuge modelling of capillary phenomena and contaminant migration in unsaturated soils." Thesis, Cardiff University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364759.

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20

Maier, Gunther. "The Impact of Optimal Job Search Models on the Modelling of Migration Behavior." WU Vienna University of Economics and Business, 1986. http://epub.wu.ac.at/6229/1/IIR_Disc_29.PDF.

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21

Kalogirou, Stamatis. "The statistical analysis and modelling of internal migration flows within England and Wales." Thesis, University of Newcastle Upon Tyne, 2003. http://hdl.handle.net/10443/204.

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Migration flows in recent decades suggest that Britain is a nation of people on the move. The combination of information technology and structured data collection allow today a very close and detailed examination of trends in internal migration in England and Wales. However, there has been a relative dearth in the analysis of migration data using quantitative techniques. In this thesis I attempt to analyse migration patterns and to model migration moves in order to explain the main factors affecting individuals' migration decisions. I try to link this work to existing research in this research

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22

Meinhardt, HR. "Evaluation of predictive models for pesticide behaviour in South African soils / HR Meinhardt." Thesis, North-West University, 2009. http://hdl.handle.net/10394/5092.

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The re-evaluation of pesticide use patterns is a high priority internationally. The process has led to a reduction in the numbers of pesticides allowed for use in many countries. This withdrawal of pesticides is aimed at consumer and environmental protection. Pesticide mobility and persistence is of major importance especially when considering the protection of water sources. In order to evaluate the suitability of a pesticide for use it is essential that its environmental behaviour is understood and predictable. In this thesis several case studies in which damage to crops may have been caused

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23

Tammela, S. (Simo). "Enhancing migration and reproduction of salmonid fishes:method development and research using physical and numerical modelling." Doctoral thesis, Oulun yliopisto, 2013. http://urn.fi/urn:isbn:9789526202174.

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Abstract Dam building for hydropower production, dredging for log floating and drainage of peatlands have massively affected migrating salmonid populations in Finland. Increased sedimentation and changes in hydraulic conditions have destroyed the majority of spawning and rearing habitats in freshwater brooks and dam building has stopped migration upstream at river mouths. This thesis examines the current state of drained forest brooks, possibilities for restoration and methods to assist migration in rivers used for hydropower. Drainage down to the mineral soil has caused massive erosion and se

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24

Lyons, Bernadette M. "The effect of brine density on brine plume migration in groundwater, a centrifuge modelling study." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0004/MQ42658.pdf.

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25

Schaffer, Sophia Anna [Verfasser], and Joachim [Akademischer Betreuer] Rädler. "Cytoskeletal dynamics in confined cell migration: experiment and modelling / Sophia Anna Schaffer ; Betreuer: Joachim Rädler." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2021. http://d-nb.info/1239557337/34.

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26

Xu, Wenjie. "Investigation of Gas Migration in saturated Argillaceous Rock." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-132511.

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Gas migration in saturated argillaceous rock is studied in this work. Dependent on the pressure level the gas transport process is controlled by different mechanisms. Gas injection tests have been carried to investigate the gas transport process in low permeable argillaceous rock. We focus on the Opalinus Clay, which has been widely researched and is important for searching possible host rock of the radioactive waste disposal. Gas injection tests at different scales (laboratory, in-situ borehole and in-situ tunnel test) are intensively investigated in this work. The measurements of the tests a

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27

Hindle, Andrew D. "Modelling and evaluating petroleum migration pathways in the Paris, Williston and West of Shetlands and Wessex Basins." Thesis, Open University, 1998. http://oro.open.ac.uk/57868/.

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Petroleum migration pathways through a basin are determined by the three-dimensional distribution of discontinuous sealing surfaces, which are usually parallel to bedding. The petroleum migrates below the sealing surface taking the structurally most advantageous route. The three-dimensional distribution of migration pathways within the petroleum system can be modelled on a personal computer using a program based on the parameters developed during the research summarised in this thesis. Application of the model to the Paris, Williston, West of Shetlands and Wessex Basins demonstrates that a goo

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28

Seatlhodi, Thapelo. "Mathematical modelling of HIV/AIDS with recruitment of infecteds." University of the Western Cape, 2015. http://hdl.handle.net/11394/4744.

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>Magister Scientiae - MSc<br>The influx of infecteds into a population plays a critical role in HIV transmission. These infecteds are known to migrate from one region to another, thereby having some interaction with a host population. This interactive mobility or migration causes serious public health problems. In a very insightful paper by Shedlin et al. [51], the authors discover risk factors but also beneficial factors with respect to fighting human immunodeficiency virus (HIV) transmission, in the lifestyles of immigrants from different cultural backgrounds. These associated behavioral fac

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29

Clay, Thomas Anthony. "Drivers of variation in the migration and foraging strategies of pelagic seabirds." Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/267809.

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The ability to move and forage efficiently plays a major role in determining the fate of individuals, and has important implications for population dynamics and ecosystem functioning. Migration is a particular type of movement strategy, whereby animals may travel remarkable distances in order to take advantage of seasonality in resource availability or to avoid arduous winter conditions; however, this can be at a cost in terms of increased mortality. Indeed, anthropogenic threats in non-breeding areas are a major cause of population declines and a better understanding of non-breeding spatial e

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30

Smith, Christopher David. "Assessing the impact of climate change upon migration in Burkina Faso : an agent-based modelling approach." Thesis, University of Sussex, 2012. http://sro.sussex.ac.uk/id/eprint/40478/.

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The notion of environmental migration, and the associated desire to predict the likely scale of the phenomenon in the future, has frequented academic debate since the 1980s. Despite this, current estimates of the numbers of people likely to be displaced by environmental change by 2050 range from 150 million to 1 billion. By developing an agent-based model this research attempts to provide a rigorous means of quantifying the influence of future changes in climate (using rainfall as a proxy) upon migration trends within the context of Burkina Faso. Located in dryland West Africa, the population

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31

da, Silva Barbara Luisa. "Glioblastoma cell behaviour : a study of chemically-induced cellular connectivity and 3D modelling of cellular migration." Thesis, University of Leeds, 2018. http://etheses.whiterose.ac.uk/22479/.

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Glioblastoma multiforme (GBM) is the most common and deadliest brain cancer in adults. Despite considerable efforts at both bench and bedside, the average survival for GBM patients is only 14-15 months. This dismal prognosis stems from challenges in treatment and a malignant tumour biology. A key need in addressing GBM is to better understand and therapeutically target GBM cell invasion into the surrounding healthy brain tissue. Cytoskeletal remodelling and dynamics, mediated by ROCK effector proteins, play an important role in the ability of GBM cells to migrate. ROCK inhibition is being cons

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32

STEFANONI, Filippo. "DUROTAXIS MODELLING FOR TISSUE ENGINEERING APPLICATIONS." Doctoral thesis, Università degli studi di Ferrara, 2010. http://hdl.handle.net/11392/2389166.

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Tissue Engineering is a very promising research field for the development of natural biological substitutes that restore damaged tissue functions. Cells play a crucial role in tissue regeneration and repair due to their characteristics of proliferation and differentiation, cell-to-cell interaction, biomolecular production and extracellular matrix formation. In particular cell migration is a phenomenon that is involved in different physiological processes such as morphogenesis, wound healing and new tissue deposition. In the absence of external guiding factors it is essentially a phenomen

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33

Mose, Victor Nyaliki. "Mathematical modelling of the dynamics of migrations for large mammal populations in the Amboseli National Park, Kenya." Paris 6, 2013. http://www.theses.fr/2013PA066161.

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La propagation de l'activité humaine, le règlement et la fragmentation des terres menace les migrations de grands ongulés migrateurs en Afrique. La modélisation des migrations donne écologistes un outil pour construire des scénarios des menaces et des options de confinement. Cette étude propose un modèle mathématique spatialement explicite des migrations ongulés basé sur la répartition saisonnière de la quantité et de la qualité et des modèles allométriques de l'alimentation végétale. Nous étudions l'impact des couloirs bloqués sur les populations d'herbivores à l'aide d'un modèle mathématique

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34

Dyson, Louise. "Mathematical models of cranial neural crest cell migration." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:66955fb9-691f-4d27-ad26-39bb2b089c64.

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From the developing embryo to the evacuation of football stadiums, the migration and movement of populations of individuals is a vital part of human life. Such movement often occurs in crowded conditions, where the space occupied by each individual impacts on the freedom of others. This thesis aims to analyse and understand the effects of occupied volume (volume exclusion) on the movement of the individual and the population. We consider, as a motivating system, the rearrangement of individuals required to turn a clump of cells into a functioning embryo. Specifically, we consider the migration

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35

Hutchings, Theresa. "Application of modelling techniques to test hypotheses concerning the migration of aviation gasoline from a surface spill." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/38732.

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36

Sandell, Teodor, and Klara Hvarfner. "Modelling Migration : An evaluation of existing spatial interaction models and decay functions on municipality level in Sweden." Thesis, Uppsala universitet, Statistiska institutionen, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-352374.

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37

Finotello, Alvise. "Tidal Channel Patterns: Field Investigations, Numerical Modelling and Laboratory Experiments." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3425863.

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Tidal meandering channels are ubiquitous features of tidal landscapes and play a fundamental role on the eco-morphodynamic evolution of these environments. However, only a handful of papers provide details on tidal meander planimetric shape, morphometric characteristics and morphodynamic evolution, and the internal achitecture of tidal meanders has not been explored in detail. Moreover, the morphodynamic evolution of tidal meanders and the related sedimentary products have often been interpreted on the basis of the well developed models and theories existing for their fluvial counterparts, des

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Kolody, Dale Shawn. "Analysis of Fraser River sockeye salmon coastal migration route variation using Bayesian estimation methods and individual-based modelling." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ38916.pdf.

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39

Lawson, Brodie Alexander James. "Cell migration and proliferation on homogeneous and non-homogeneous domains : modelling on the scale of individuals and populations." Thesis, Queensland University of Technology, 2013. https://eprints.qut.edu.au/61066/1/Brodie_Lawson_Thesis.pdf.

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Cell migration is a behaviour critical to many key biological effects, including wound healing, cancerous cell invasion and morphogenesis, the development of an organism from an embryo. However, given that each of these situations is distinctly different and cells are extremely complicated biological objects, interest lies in more basic experiments which seek to remove conflating factors and present a less complex environment within which cell migration can be experimentally examined. These include in vitro studies like the scratch assay or circle migration assay, and ex vivo studies like t

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Züllich, Gunda. "Migration and development in Senegal : a system dynamics analysis of the feedback relationships." Master's thesis, Universität Potsdam, 2011. http://opus.kobv.de/ubp/volltexte/2012/5783/.

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This thesis investigates the reciprocal relationship between migration and development in Senegal. Therewith, it contributes to the debate as to whether migration in developing countries enhances or rather impedes the development process. Even though extensive and controversial discussions can be found in the scientific literature regarding the impact of migration on development, research has scarcely examined the feedback relationships between migration and development. Science however agrees with both the fact that migration affects development as well as that the level of development in a c

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Clément, Maxime. "Migration des fluides issus de la déshydratation des serpentinites : une étude naturelle et expérimentale." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTG066/document.

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La migration de fluides peut être responsable de nombreux processus d’importance sociétale et économique puisqu’elle est associée à des dépôts de minerai où à la formation de volcans d’arc à éruption explosive. La migration de fluides issus des réactions de déshydratation des serpentinites est aussi associée à des changements de comportement rhéologique de ces serpentinites dans les zones de subduction. Ce changement de rhéologie peut être responsable du déclenchement de tremblement de terre dans les zones de subduction. Toutefois, le couplage entre propriétés mécaniques des serpentinites, mig

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Vobecka, Jana. "Spatial dynamics of the population in the Czech Republic (1989 - 2007)." Phd thesis, Université de Bourgogne, 2010. http://tel.archives-ouvertes.fr/tel-00575624.

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The aim of the thesis is to describe, analyse and discuss the development of spatial population dynamics in the Czech Republic between 1989 and 2007. Demographic structure and migration, the two components of spatial population dynamics, are analysed using two spatial dimensions, the urban-suburban-rural gradient and the core-periphery region distinction, using quantitative analyses, including gravity regression modelling of migration. The analysis primarily focuses on domestic migration as the main vehicle of spatial population dynamics. It discusses the structure, determinants, and temporal

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Stéphanou, Angélique. "The Spatio-temporal dynamics of cell membrane deformations and cell migration : a characterization from image sequences and theoretical modelling." Université Joseph Fourier (Grenoble), 2002. http://www.theses.fr/2002GRE19002.

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This thesis concerns the study of cell deformations and is interested in two complementary approaches, an experimental one and another theoretical one. The experimental approach is motivated by the demonstration from previous works of the existence of a certain auto-organization of the deformation patterns. This auto-organization consists of the appearance of recurring protrusive patterns in space and time. This has been shown, in particular, for round-shaped cells (leukocytes or keratinocytes) which present a relatively simple organization of theactin cytoskeleton. We have chosen to study mur

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Gonzalez‐Blanco, Laura. "Gas migration in deep argillaceous formations : Boom clay and indurated clays." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/406355.

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Deep geological disposal remains the preferred option at present for the management of long-living and heat-emitting radioactive waste, which consists of confining the waste during a very long period (several hundreds of thousands of years) by placing them in a deep geological formation. Therefore, the understanding of the long-term behaviour of formations is becoming a key issue to ensure the feasibility of the geological disposal facilities, particularly regarding the generation and migration of gases. The present PhD work aims at better understanding the complex hydro-mechanical response o

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Mayerl, Jochen, and Manuel Holz. "Comparing health of migrant and native populations : Testing intercultural and longitudinal measurement equivalence of the SF-12 using Structural Equation Modelling." Technische Universität Chemnitz, 2019. https://monarch.qucosa.de/id/qucosa%3A38387.

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Response-sets belong to reoccurring problems in migration research. Cultural factors, time-varying effects and survey design lead to response biases. It could be shown that depending on the region of origin, migrants tend to extreme or centred responding behaviour. Macroscale changes in attitudes towards disclosure of personal information influence acquiescent biases. Therefore, the question arises whether the presence of measurement equivalence can be assumed, especially within instruments regarding subjective feelings, when differences between migrant and native populations are the variable

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Lheureux, Edel. "Investigating Atlantic salmon (Salmo salar ) migration phenology using a long-term capture-recapture study : disentangling observation process from underlying ecological mechanisms using a Bayesian modelling approach." Electronic Thesis or Diss., Pau, 2024. http://www.theses.fr/2024PAUU3028.

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Les activités humaines sont à l’origine d’une crise de la biodiversité sans précédent. Les espèces migratrices sont particulièrement menacées, parce que la migration est risquée, et rend en outre ces espèces dépendantes de multiples environnements et de leur connectivité. La phénologie, c’est-à-dire le rythme auquel une espèce réalise un événement de son cycle de vie, influe fortement le coût global de ce dernier. Dans cette thèse, je me concentre sur la phénologie de la première migration vers la mer du saumon atlantique (Salmo salar), un événement crucial dans son cycle de vie. Le changement

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Van, Der Waal Zelda. "When fish are not poisson : modelling the migration of Atlantic salmon (Salmo salar) and sea trout (Salmo trutta) at multiple time scales." Thesis, University of Newcastle upon Tyne, 2014. http://hdl.handle.net/10443/2420.

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Migratory species undertake prolonged seasonal journeys; monitoring these movements is challenging but can sometimes be achieved by observations that taken locally and, ideally, using remote methods. Amongst the best known examples of migrating fish in Europe, are Atlantic salmon (Salmo salar) and sea trout (Salmo trutta) that migrate between river and seawater. Characteristics of habitat suitability, feeding opportunities, predation, as well as salmonid sensitivity and needs, vary throughout successive stages of their anadromous life cycle. Since the marine stage is the longest but is also ch

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Splajt, Tanya D. "Application of multi-scale assessment and modelling of landfill leachate migration : implications for risk-based contaminated land assessment, landfill remediation, and groundwater protection." Thesis, University of Hull, 2004. http://hydra.hull.ac.uk/resources/hull:5600.

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There are a large number of unlined and historical landfill sites across Britain, contaminating groundwater and soil resources as well as posing a threat to human health and local communities. There is an essential requirement for robust methodology when carrying out risk-based site investigations prior to risk assessment and remediation of landfill sites. This research has focused upon the methods used during site investigations for two reasons. Firstly, the site investigation is often conducted using field instruments and methods that do not account for the heterogeneous conditions found at

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Penny, Melissa. "Mathematical modelling of dye-sensitised solar cells." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16270/.

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This thesis presents a mathematical model of the nanoporous anode within a dyesensitised solar cell (DSC). The main purpose of this work is to investigate interfacial charge transfer and charge transport within the porous anode of the DSC under both illuminated and non-illuminated conditions. Within the porous anode we consider many of the charge transfer reactions associated with the electrolyte species, adsorbed dye molecules and semiconductor electrons at the semiconductor-dye- electrolyte interface. Each reaction at this interface is modelled explicitly via an electrochemical equation, res

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50

Penny, Melissa. "Mathematical modelling of dye-sensitised solar cells." Thesis, Queensland University of Technology, 2006. https://eprints.qut.edu.au/16270/1/Melissa_Penny_Thesis.pdf.

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Abstract:

This thesis presents a mathematical model of the nanoporous anode within a dyesensitised solar cell (DSC). The main purpose of this work is to investigate interfacial charge transfer and charge transport within the porous anode of the DSC under both illuminated and non-illuminated conditions. Within the porous anode we consider many of the charge transfer reactions associated with the electrolyte species, adsorbed dye molecules and semiconductor electrons at the semiconductor-dye- electrolyte interface. Each reaction at this interface is modelled explicitly via an electrochemical equation, res

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