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The Palaeo-Ecology And Biostratigraphy Of The Foraminifera From The Oxfordian Of North Dorset, Andrew Scott Henderson Jan 1997

The Palaeo-Ecology And Biostratigraphy Of The Foraminifera From The Oxfordian Of North Dorset, Andrew Scott Henderson

School of Geography, Earth and Environmental Sciences Theses

The Oxfordian rocks of north Dorset are poorly exposed at outcrop. A drilling operation was devised and implemented and the complete sequence of strata from the Weymouth Member of the Oxford Clay Formation through to the Ringstead Waxy Clay Formation was penetrated. Three boreholes were drilled; the Hallett's Farm Borehole, covering the strata from the stratigraphically youngest Ringstead Waxy Clay Formation down to the Cucklington Oolite; the Bowden Farm Borehole, continuing the sequence from the Cucklington Oolite into the lower part of the Hazelbury Bryan Formation and the Hartmoor Hill Borehole which continues downward into the Oxford Clay Formation. A …


Privatisation, Rural Railways And Community Development, Theresa Maria Lowndes Jan 1997

Privatisation, Rural Railways And Community Development, Theresa Maria Lowndes

School of Geography, Earth and Environmental Sciences Theses

This thesis examines two separate, but interrelated, issues, namely rail privatisation and rural dependency on the availability of rail transport. The thesis was based on the proposition that rural accessibility permits the development and sustainability of the social and economic lives of a community and that this interrelationship is currently threatened by rail privatisation and the associated risks of line closures or service cutbacks. To test this proposition a thorough investigation into the theory and practice of privatisation was completed, together with a comprehensive survey of the travel arrangements of people living in rural communities served by branch line railways. …


Plio-Pleistocene Drainage Evolution Of The Vera Basin, Se Spain, Martin Stokes Jan 1997

Plio-Pleistocene Drainage Evolution Of The Vera Basin, Se Spain, Martin Stokes

School of Geography, Earth and Environmental Sciences Theses

The Vera Basin is used as a case study to examine the structural evolution and sedimentary response of a basin undergoing uplift and inversion during the Plio-Pleistocene. Particular emphasis is placed on the drainage evolution during that period. Located within the Internal zone of the Betic Cordilleras, the Vera Basin is defined within a large left-lateral shear zone and has evolved as a reponse to isostatic uplift from nappe emplacement during the Oligocene, and by regional compressive tectonics. Since basin formation during the Seravallian, sedimentary fill has been dominantly marine. During the Plio-Pleistocene a switch from marine to continental conditions …


Recession As An Agent In The Restructuring Of Tourist Accommodation, Andrew John Clegg Jan 1997

Recession As An Agent In The Restructuring Of Tourist Accommodation, Andrew John Clegg

School of Geography, Earth and Environmental Sciences Theses

Academic research into economic restructuring in the tourist industry has solely focused on the strategies adopted by large chain hotel companies and little attention has been paid to the strategies adopted by small scale, family-run accommodation establishments. This sector is particularly significant for traditional resort areas in the UK. For example, in Torbay, Devon (as in most seaside resorts), there is an absence of large chain hotels and small-scale accommodation establishment pl ay an integral role in the local tourism economy.Consequently, an understanding of the competitive pressures and restructuring strategies in this sector is essential in maintaining the long-term health …


The Interpretation And Characterisation Of Lineaments Identified From Landsat Tm Imagery Of Sw England, John David Rogers Jan 1997

The Interpretation And Characterisation Of Lineaments Identified From Landsat Tm Imagery Of Sw England, John David Rogers

School of Geography, Earth and Environmental Sciences Theses

Two Landsat TM scenes of SW England and a sub-scene of North Cornwall have been analysed visually in order to examine the effect of resolution on lineament interpretation. Images were viewed at several different scales as a result of varying image resolution whilst maintaining a fixed screen pixel size. Lineament analysis at each scale utilised GIS techniques and involved several stages: initial lineament identification and digitisation; removal of lineaments related to anthropogenic features to produce cleansed lineament maps; compilation of lineament attributes using ARC/INFO; cluster analysis for identification of lineament directional families; and line sampling of lineament maps in order …


Particle-Water Interactions Of Ni And Zn In Coastal Waters, Tonia Karen Sands Jan 1997

Particle-Water Interactions Of Ni And Zn In Coastal Waters, Tonia Karen Sands

School of Geography, Earth and Environmental Sciences Theses

Samples of suspended particulate matter (SPM) and sediment were collected from the Humber coastal zone during six seasonal and inter-annual surveys (November 1993 - July 1995) on board RRS Challenger as part of the NERC Land Ocean Interaction Study (LOIS) initiative. Concentrations of Ni, Zn, Fe and Mn, extracted using a 1M HCl digest, were determined by atomic absorption spectrometry techniques. Particulate Ni and Zn both exhibited a pronounced seasonal distribution in the Humber coastal zone. Significant metal-salinity relationships were obtained for both metals indicating the Humber Estuary to be a significant source of Nip and Znp to the region. …


High-Resolution Sequence Stratigraphy And Diagenesis Of Mixed Carbonate/Siliciclastic Successions., Guy Mark Oliver Jan 1997

High-Resolution Sequence Stratigraphy And Diagenesis Of Mixed Carbonate/Siliciclastic Successions., Guy Mark Oliver

School of Geography, Earth and Environmental Sciences Theses

The aims of this thesis are to evaluate whether the distribution of diagenetic features in nearshore successions can be explained within a sequence stratigraphic concept; to assess whether the identification and analysis of these features can be used to aid in making sequence stratigraphic interpretations; and to evaluate whether sequence stratigraphy can be used to predict the distribution of diagenetic heterogeneities at the field and inter-well scale. High resolution sequence stratigraphic frameworks have been established for two nearshore mixed carbonate/siliciclastic successions, using facies and early diagenetic analyses. These are the Upper Jurassic Corallian Group of south Dorset and the Lower …


Late-Glacial And Holocene Variations In Fire Frequency In The Central Plateau And Yellowstone-Lamar Provinces Of Yellowstone National Park, Sarah Hooper Millspaugh Jan 1997

Late-Glacial And Holocene Variations In Fire Frequency In The Central Plateau And Yellowstone-Lamar Provinces Of Yellowstone National Park, Sarah Hooper Millspaugh

School of Geography, Earth and Environmental Sciences Theses

The fire history in two geovegetation provinces in Yellowstone National Park was reconstructed to determine relations between postglacial climate change, fire frequency, and vegetation. Fire reconstructions were based on charcoal preserved in lake-sediment cores from the Central Plateau and Yellowstone-Lamar Provinces, and fire-related erosional events were inferred from changes in sediment magnetism. The fire records were compared with pollen data and paleoclimatic reconstructions for the past 17,000 years. In the Central Plateau Province, infertile soils restricted the vegetation response to Holocene climate changes, but fire frequency changed continuously as a result of variations in the intensity of summer drought. Fire …


Trace Metals In Blood And Urine As Potential Markers Of Bone Breakdown In Patients With Bone Metastases, Fiona Jane Roberts Jan 1997

Trace Metals In Blood And Urine As Potential Markers Of Bone Breakdown In Patients With Bone Metastases, Fiona Jane Roberts

Other Faculty of Health Theses

In the western world cancer is the second most important cause of death, after heart disease, accounting for 20-25% of all mortalities, and is today probably one of the most feared diseases. Approximately one third of all cancer patients will develop skeletal metastases (secondary bone cancer). Early diagnosis and effective monitoring during treatment is therefore essential in terms of making any impact on survival rates and developing new cancer therapies. Unfortunately, the current methods for diagnosing and measuring bone metastases, such as bone scans and urinary hydroxyproline determinations, lack sensitivity and specificity. The urinary pyridinium crosslinks, pyridinoline (PYD) and deoxypyridinoline …


Factors Affecting Collision & Grounding Losses In The Uk Fishing Fleet, Malcolm Findlay Jan 1997

Factors Affecting Collision & Grounding Losses In The Uk Fishing Fleet, Malcolm Findlay

Other Faculty of Science and Engineering Theses

Examination of the literature reveals a paucity of dedicated research into collisions and groundings involving UK fishing vessels. The aim of this research was to provide answers to fundamental questions regarding the factors that contribute to fishing vessel traffic losses. Data for this study were gathered from a broad range of sources and an eclectic range of techniques employed in their analysis. The recent development of the UK fishing fleet and the pattern of losses from all causes is investigated for the period 1975 to 1994. Fishing vessel collision and grounding losses are then set in relative perspective by comparison …


The Integration Of Cloud Satellite Images With Prediction Of Icy Conditions On Devon's Roads, Robin Tristan Clark Jan 1997

The Integration Of Cloud Satellite Images With Prediction Of Icy Conditions On Devon's Roads, Robin Tristan Clark

Other Faculty of Science and Engineering Theses

The need for improved cloud parameterisations in a road surface temperature model is demonstrated. Case studies from early 1994 are used to investigate methods of tracking cloud cover using satellite imagery and upper level geostrophic flow. Two of these studies are included in this thesis. Errors encountered in cloud tracking methods were investigated as well as relationships between cloud height and pixel brightness in satellite imagery. For the first time, a one dimensional energy balance model is developed to investigate the effects of erroneous cloud forecasts on surface temperature. The model is used to determine detailed dependency of surface freezing …


Comparative Analysis Of The Turkish And European Union Passenger Ferry Market In The Eastern Mediterranean, Hatice Funda Yercan Jan 1997

Comparative Analysis Of The Turkish And European Union Passenger Ferry Market In The Eastern Mediterranean, Hatice Funda Yercan

Other Faculty of Science and Engineering Theses

This thesis covers Turkish and EU maritime policies for the passenger ferry industries. It concentrateso n the positioning of ferry operatorsi n the passengefre rry market in the Eastern Mediterranean. A general background to Turkey and to its maritime industry is drawn before developing a model. A positioning model is developed in a quantitative approach to this research. Furthermore, it is operationalised by using the Multidimensional Scaling (MDS) Technique within multivariate analysis. A specific programme, MDPREF, from the MDS(X) Series of MDS Programmes is used for the calculation and illustration of the analysis. The Positionso f the Turkish and EU …


Road Freight Privatisation In Egypt : A Comparative Analysis With Great Britain And Hungary, Nabil Abdel-Fattah Jan 1997

Road Freight Privatisation In Egypt : A Comparative Analysis With Great Britain And Hungary, Nabil Abdel-Fattah

Other Faculty of Science and Engineering Theses

Egypt, along with other countries in the world, is going through an economic transition from state control to a more market orientated economy. As part of this process, road freight transport is undergoing a process of privatisation and deregulation. There are many possible approaches which can be adopted, depending somewhat on the desired outcome of the process and economic philosophy of the country. Many countries have already gone through the processes of road freight privatisation and deregulation; some much more recently (Hungary) than others (the UK). At this early stage of road freight privatisation in Egypt, it is important and …


Mathematical Modelling Of The Dynamic Response, In Six Degrees Of Freedom, Of Small Vessels In A Seaway, Barbara Diana Wallis Jan 1997

Mathematical Modelling Of The Dynamic Response, In Six Degrees Of Freedom, Of Small Vessels In A Seaway, Barbara Diana Wallis

Other Faculty of Science and Engineering Theses

This thesis treats the motion of a small vessel described in six degrees of freedom. There are three are translation equations of motion and the other three are equations of angular motion. The aim is to develop a model with a sound mathematical base and use experimentation to find forces to aid the completion of the model, with the intention of use in an auto pilot, by the following means: 1) By solving the equations of motion for large movements, with given sea and wind conditions and also with given control forces and moments. 2) Deduce the forces and moments …


Counter-Urbanisation, Housing And Households In Cornwall, Carol Williams Jan 1997

Counter-Urbanisation, Housing And Households In Cornwall, Carol Williams

Other Faculty of Science and Engineering Theses

Over the last thirty years Cornwall has experienced a dramatic population expansion. Population growth has had effects in many areas, but particularly in housing. The increased demand for housing from those migrating into the area has inflated house prices, yet the Cornish economy is afflicted by low wage levels and high unemployment rates, creating a `mortgage gap' for long term residents. This coupled with the decline in availability of both publicly and privately rented accommodation has resulted in what has been termed a housing `crisis' (George 1987, Deacon et al. 1988, Lennon 1991, Williams 1993). It has been suggested that …


Performing The Self : An Examination Of The Relationships Between Concepts Of Identity And Performance, Matthew Thomas Wellings Jan 1997

Performing The Self : An Examination Of The Relationships Between Concepts Of Identity And Performance, Matthew Thomas Wellings

Other Faculty of Arts, Humanities and Business Theses

This thesis sets out to examine the idea that self-identity can be coherently viewed as a performance event. If such a proposition is supportable, it would seem to argue for attention to be paid to the nature of the activity of performing as a means to better understanding the processes of human identity. Beginning with an analysis of an early example of such a theoretical position, this thesis examines some of the central issues involved in viewing the self as performative. The agenda dictating the direction of this analysis can be summarised as an effort to provide a model of …


Structure-Activity Relationships In Glucosinolates As Oviposition Stimulants Of The Cabbage Root Fly, Delia Radicum (L.), Neil Patrick Chilcott Jan 1997

Structure-Activity Relationships In Glucosinolates As Oviposition Stimulants Of The Cabbage Root Fly, Delia Radicum (L.), Neil Patrick Chilcott

Other Faculty of Science and Engineering Theses

A statistically sound and quantifiable bioassay procedure was developed for determining the response of adult Delia radicum to oviposition stimulants. The method was based on the use of surrogate leaves coated with test compounds. All of the test compounds were of purity 99% or greater. Twelve of the tested compounds were synthesised the remaining twenty four were either donated or available commercially. Attempts to follow literature methods to synthesise glucosinolates were unsatisfactory and an investigation of the procedures led to a number of synthetic modifications. Despite various attempts, the failure to sulphate a thiohydroximate to produce a glucosinolate was not …


Improving The Performance Of Weaner Pigs Through Developments In Liquid Feeding, Tina Maria Geary Jan 1997

Improving The Performance Of Weaner Pigs Through Developments In Liquid Feeding, Tina Maria Geary

Other Faculty of Science and Engineering Theses

A programme of work was undertaken to assess the efficacy of a new automated ad libitum feed delivery system for newly weaned pigs; to investigate the effects of liquid feeding on their performance and to explore the possibilities for reducing diet cost by using lower cost liquid components. A series of 28 day feeding trials was conducted using pigs weaned at 24 ± 4 days and fed ad libitum on liquid diets. Compared with pigs fed dry diets, liquid feeding increased feed intake by 109 ± 10 g dˉ¹ (P<0.001) and daily gain by 57± 14 g dˉ¹ (P<0.001). Pig growth and feed conversion ratio was not significantly influenced by dry matter content over the range of 255 - 149 g DM kgˉ¹. However, diets containing less than 220 g DM kgˉ¹ increased effluent output per kg of liveweight gain. Within the liquid feed system a natural lactic acid fermentation occurred which reduced diet pH ≤ 4.0 and inhibited the growth of coliform bacteria. Pigs fed diets in which pH was reduced to ≤ 4.0 by acidification with either lactic acid or Pediococcus acidilactici had daily gains of 496 and 474 ± 17 g dˉ¹ and feed conversion ratios of 1.11 and 1.15 ± 0.06 respectively. A series of laboratory studies was conducted with the aim of upgrading and controlling fermentation of food industry liquid residues for use in liquid diets for weaners. Steeping was investigated as a method for reducing glycoalkaloid levels in reject raw potatoes. A combination of natural fermentation and hydrolysis reduced the levels of α-solanine by 16.6 mg kgˉ¹ (35%) and α-chaconine by 28.7 mg kgˉ¹ (51%) respectively. Diets based on the food industry liquid residues (Whey, 'C'-Starch and Greenwich Gold), were either allowed to ferment naturally or inoculated with Enterococcus faecium or Pediococcus acidilactici. Inoculation with either Enterococcus faecium or Pediococcus acidilactici did not result in a significant difference in the final pH of the diets or in the final populations of microorganisms examined compared with the control. The series of studies demonstrated the potential for improving weaner pigs performance using fermented liquid diets. However, it highlighted the need for further studies to obtain a greater degree of control over fermentation patterns.


A Strategic Choice Model For Asia-Pacific Shipping, Jeffrey Edward Hawkins Jan 1997

A Strategic Choice Model For Asia-Pacific Shipping, Jeffrey Edward Hawkins

Other Faculty of Science and Engineering Theses

The importance of strategy to an organisation's competitiveness is widely acknowledged in the strategic management literature. However, although strategy research has become substantial in other areas, the same cannot be said with the shipping industry. Very littie is known about how shipowners choose competitive strategies or what strategies they pursue under certain environmental conditions. Of what is available, most focus on Northern Europe and Northem America, with scant regard for the Asia-Pacific, which has become a major shipping power in recent decades. This study was, therefore, conducted to address these gaps in the literature. It analysed the strategic choices made …


Iran's Potential As A Landbridge For Former Ussr Republics: A Scenario Approach, Parviz Bavarsad-Ahmadi Jan 1997

Iran's Potential As A Landbridge For Former Ussr Republics: A Scenario Approach, Parviz Bavarsad-Ahmadi

Other Faculty of Science and Engineering Theses

The concept of a landbridge refers to different types of integrated origin-destination international movements of shipments (in various combinations of sea, land and air) under a single waybill. There are different examples of landbridges with different characteristics related to transport supply facilities, organisational structure and managerial skills. Certain limitations of existing landbridge studies are discussed. They include the failure of a comprehensive academic study to account jointly for both demand and supply of landbridge services. Most articles on landbridges discuss the Trans-Siberian Railway or east-west coast landbridges of the United States of America. No comprehensive academic studies of landbridges in …


The Social Location Of Widows, Mary Barnaby Jan 1997

The Social Location Of Widows, Mary Barnaby

Other Faculty of Science and Engineering Theses

This thesis draws critically upon the sociology of Pierre Bourdieu to develop a theory of the social location of widows. The thesis presents widowhood as a set of objective social relations regulated by the objective structures of marriage, gender and death. In the course of the discussion a critical analysis of Bourdieu's theorization of gender is advanced. The potential of Bourdieu's work for feminist theory is identified, particularly in his explanation of the mechanism of gender relations, however, the analysis also demonstrates that the phallocentric presuppositions embedded within Bourdieu's theorization of gender have to be addressed before the theory's potential …


Predicament Of The New Primary Teacher : Educating Teachers As Intellectuals In Changing Times, Roderick Mackenzie Jan 1997

Predicament Of The New Primary Teacher : Educating Teachers As Intellectuals In Changing Times, Roderick Mackenzie

Plymouth Institute of Education Theses

This thesis is based on a case study of the predicament of new primary teachers in a time of rapid and multiple change. It examines the proposal that emerging teachers should be supported as intellectuals in responding to the inherited collision of education policy and practice within postmodernity. Action research methodology was employed to investigate a small scale attempt to support student teachers as intellectuals in their final period of the BEd. Some participants were followed into the first year of teaching, using an ethnographic and autoethnographic methodology to evaluate and elaborate the initial proposal. The study shows that emerging …


Individual Differences In Psychological Adjustment To Perceived Abnormalities Of Appearance, Timothy Peter Moss Jan 1997

Individual Differences In Psychological Adjustment To Perceived Abnormalities Of Appearance, Timothy Peter Moss

School of Psychology Theses

The aim of this programme of research was to investigate the differences between individuals in their psychological adjustment to perceived abnormalities of appearance. The first phase of the research was to refine and validate a measure of distress and dysfunction associated with having an appearance which is different from normal. Over 500 patients in plastic reconstructive surgery units were recruited as participants in a nationwide multi-centre trial. The resulting measure, the Derriford Appearance Scale 24r was shown to have good psychometric properties, and was used as a criterion measure of adjustment. A series of clinical interviews were conducted with contrasting …


A Study Exploring The Nature And Effect Of Interactions In Play Between Carers And Children With Cerebral Palsy, Down Syndrome And Typical Development, Jan Payne Jan 1997

A Study Exploring The Nature And Effect Of Interactions In Play Between Carers And Children With Cerebral Palsy, Down Syndrome And Typical Development, Jan Payne

School of Psychology Theses

An observational study with an emergent design of two parts, consisting of quantitative and qualitative analysis, looked at communicative interactions between carers and children. The children were drawn from three groups: Cerebral Palsy, Down syndrome and typically developing. The first part of the study utilised a secondary data set of observations of play sessions of carers with children who have Cerebral Palsy and carers of children with typical development. A continuous observational data-logging method of four verbal and six non-verbal behaviours was piloted and used with this data, and also used with observations of a further research group of carers …


Enhanced Sediment Transport Near Seawalls And Reflective Beaches, Jon Miles Jan 1997

Enhanced Sediment Transport Near Seawalls And Reflective Beaches, Jon Miles

School of Biological and Marine Sciences Theses

This thesis describes results of a field experiment to examine the effect of wave reflection on suspended sediment transport in front of a seawall. Two instrument rigs were set up on the beach at Teignmouth, South Devon, U.K., in June 1995. One rig (the seawall rig) was attached to a protruding section of seawall, positioning the instruments 1.2m seaward of the wall. The other rig (the beach rig) acted as a control and was positioned 135m downcoast where the seawall is set back so that conditions were those of a natural beach. At each rig high frequency measurements of wave …


Ecophysiology Of Neomysis Integer (Mysidacea: Peracarida), Stephen Derek Roast Jan 1997

Ecophysiology Of Neomysis Integer (Mysidacea: Peracarida), Stephen Derek Roast

School of Biological and Marine Sciences Theses

Neomysis integer (Leach) (Peracarida: Mysidacea) is a common component of the hyperbenthos of Western European estuaries, and this study focused on the ecophysiology and ecotoxicology of this mysid. Behavioural and physiological responses of N. integer to physical and chemical variables (current velocity, substratum type, temperature and salinity) were measured in the laboratory to gain better understanding of how this mysid maintains position in estuaries. Current velocity was the most important factor controlling position maintenance, and N. integer had a maximum swimming speed of c. 9cm sˉ¹. Position maintenance was facilitated by a muddy substratum and was not affected by salinity. …


Study Of The Barriers To The Implementation Of Computerised Information Systems In The National Health Service, Gloria Lankshear Jan 1997

Study Of The Barriers To The Implementation Of Computerised Information Systems In The National Health Service, Gloria Lankshear

Plymouth Business School Theses

In order for computerised information systems (CIS) to be utilised to their full potential they must first be successfully implemented. The acquisition and implementation process continues to be an area which is reported by the media to present problems for both public and private sector organisations (Keen, 1994; Collins, 1996). The process was originally considered to be a technical process only, but more recently there has been acknowledgement that there are human implications. The process of acquisition and implementation of CIS in the NHS has, therefore, been studied in order to identify the barriers which might be present. The research …


The Location And Restructuring Of The Uk Defence Industry: The Case Of The South West, Timothy Neil Williams Jan 1997

The Location And Restructuring Of The Uk Defence Industry: The Case Of The South West, Timothy Neil Williams

Plymouth Business School Theses

The objective of this thesis is to determine the factors influencing the location of the defence industry in the UK and assess the impact of recent changes at the regional level. Such changes include cuts in defence expenditure and a re-evaluation of the methods of military procurement. The thesis begins with a descriptive analysis of defence markets and an explanation of the way in which the post-war UK defence sector has been supported by a relatively large and stable defence equipment budget. A review of the relevant literature suggests that defence markets are characterised by a number of unique features. …


Growth And Performance Of Small And Medium Sized Enterprises In Rural Peripheral Locations, Matthew John Gorton Jan 1997

Growth And Performance Of Small And Medium Sized Enterprises In Rural Peripheral Locations, Matthew John Gorton

Plymouth Business School Theses

Since the 1970s the number of small firms in the UK has risen, but at temporally and spatially uneven rates. These trends have heightened interest in the role of local economies in shaping small firm growth and performance. This thesis considers the growth and performance of small and medium sized enterprises (SMEs) based in rural peripheral locations in the UK. In measuring this, quantitative survey work was undertaken in rural core as well as rural peripheral localities, with the former acting as a benchmark for comparison. lJtilising returns from standardised postal questiormaires both the performance of the agricultural and non-agricultural …


Investigating Role Strain, Coping And Subjective Well-Being In Combining Multiple Roles, Surinderjit Banga Jan 1997

Investigating Role Strain, Coping And Subjective Well-Being In Combining Multiple Roles, Surinderjit Banga

School of Psychology Theses

This thesis investigates some of the salient factors involved in women's experience of combining and coping with multiple roles. A total of four studies are undertaken using both quantitative and qualitative methods to progressively focus on those factors which are identified as particularly relevant. Consequently, data is gathered using diary, interview and questionnaire methods in order to cast light upon the precise nature of the relationship between combining multiple roles, reported life satisfaction, coping and personality. In addition to identifying which particular role combinations lead to the greatest conflict, the research also clarifies the optimum number of role demands associated …