MbyRes Dissertations
Recent Submissions
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Testing of a Valsalva Assist Device (VAD) to assess effects on heart rate and strain pressures achieved compared to a standard manometer in healthy volunteers performing standard and modified Valsalva manoeuvres.
(University of ExeterEmergency Department, Exeter Medical School, 2018-06-29)Background Supraventricular tachycardia (SVT) is a relatively common condition causing palpitations, which, if not treated, can have serious adverse effects. SVT can initially be treated with a Valsalva manoeuvre (VM) ... -
The impacts of out-group threats on within- and between-group behaviours in the cooperatively breeding white-browed sparrow-weaver
(University of ExeterBiosciences, 2018-02-05)Groups face a variety of potential threats from out-group conspecifics. Individuals from outside the group may challenge the breeding position and success of group members and groups often defend against neighbouring or ... -
Investigating the role of NADPH oxidases during infection related development of the rice blast fungus Magnaporthe oryzae
(University of ExeterBiosciences, 2018-01-08)Rice blast disease is a major threat to global food security, destroying 30% of annual rice crops globally, and with disease remaining difficult to control. The causal agent of rice blast, Magnaporthe oryzae infects plants ... -
The significance of fine-scale climate for plants
(University of ExeterCLES Biosciences, 2018-03-05)Abstract 1. Global climate change will be one of the biggest threats to biodiversity over the course of this century. 21st century biodiversity conservation thus depends much on our ability help species adapt. A better ... -
DNA Methylation in Rectal Cancer
(University of ExeterUniversity of Exeter Medical School, 2018-08-09)Rectal cancer differs from colon cancer in terms of its underlying biological behaviour, clinical course, genetic and epigenetic aetiology. Epigenetic mechanisms modify gene expression independently of DNA sequence. DNA ... -
Investigating the geochemistry and microbial ecology of heap bioleaching systems at the agglomerate scale
(University of ExeterCamborne School of Mines, 2018-03-10)Heap bioleaching is an alternative processing method for low-grade copper ores. Microbial iron oxidation produces ferric iron which solubilises copper-bearing minerals while microbially generated acid maintains a pH ... -
Do maternal effects influence phenotypic traits in a cooperatively breeding mammal?
(University of ExeterBiosciences, 2018-03-09)Animals within populations show considerable variation in physiological and behavioural traits. These phenotypic differences can be profoundly influenced by the ecological and social conditions experienced in early life. ... -
Optimisation of transition metal dichalcogenide devices for measurement of spin-Hall voltages generated by optical spin orientation
(University of ExeterPhysics, 2018-01-02)Here we propose a design to optimise measurement of the transverse spin voltage resulting from the spin Hall effect (SHE) generated by shining circularly polarised light on a transition metal dichalcogenide (TMD) monolayer. ... -
The evolution and protective benefits of immune responses in North American house finches (Haemorhous mexicanus) to Mycoplasma gallisepticum
(University of ExeterBiosciences, 2018-05-10)Pathogen spillover to novel hosts represents a huge selective event, and can result in rapid evolutionary changes in both the pathogen and the host. However, it is seldom possible to identify which specific host characteristics ... -
Heavy metal pollution and co-selection for antibiotic resistance: a microbial palaeontology approach
(University of ExeterCollege of Life and Environmental Science, 2017-10-20)The introduction of heavy metals into the environment can modify the microbial community and their activity. Due to the persistence of metals in soils and sediments, it is implicated that increased tolerance to heavy metals ... -
Extending the Nutritional Geometric Framework to Three Dimensions
(University of ExeterCollege of Life and Environmental Sciences, 2015-08-25)Nutrition has pervasive effects on an organism’s fitness, influencing traits across life history stages from early development and reproduction to ageing and lifespan. Consequently an understanding of these effects, and ... -
Direct effects of increasing temperatures on birds
(University of ExeterCollege of Life and Environmental Sciences, 2018-02-28)Increasing air and sea temperatures are driving global ecological change. Here, I explore the direct effects of increasing temperatures on birds, which has thus far been studied less than the indirect effects. In Chapter ... -
The Public Health Impacts of Pollen on Allergic Rhinitis and Asthma
(University of ExeterMedical School, 2017-09-18)Pollen grains produced by grasses, weeds, and trees are some of the most common stimuli associated with exacerbations of allergic rhinitis and asthma. The pollen seasons can be associated with significant health impacts ... -
Oxidative shielding and the cost of reproduction in the blue tit Cyanistes caeruleus
(University of ExeterCollege of life and environmental sciences, 2017-10-20)The cost of reproduction is considered to be a cornerstone of life history theory. However, the physiological mechanism that underpins the cost of reproductionremains unclear. Recently, considerable interest has been ... -
Optimisation of Low-Cost Lignocellulose Reprocessing for Industrial Ethanol Production
(University of ExeterCollege of Life and Environmental Sciences, 2018-04-24)The expanding global demand for transportation fuels and stringent governmental pollution policies have prompted energy supplier investment in the development of renewable energy technologies. Bioethanol is a renewable, ... -
Camouflage and Pattern Change in the Common Shore Crab Carcinus maenas
(University of ExeterBiosciences, 2017-09-19)In nature, one of the most common and effective adaptions for reducing the threat of predation is to decrease the likelihood of detection through camouflage. The shore crab (Carcinus maenas) faces several predators in the ... -
Engineering Complex Carbohydrate Catabolism in Industrial Bacteria
(University of ExeterCollege of Life and Environmental Sciences, 2017-09-19)Second generation biofuels from the fermentation of lignocellulose have the potential to combat increasing problems between transport fuel use and the environment. However, current lignocellulosic degradation methods are ... -
Are Story Maps a useful flood hazard and risk communication tool: A case study from St Blazey.
(University of ExeterCentre for Geography, Environment and Society, 2017-11-09)Within the UK, flooding is a major concern and can cause significant impacts for communities. Attempts are being made to reduce the impacts of UK flooding and flood hazard and risk communication is an essential part of ... -
Prediction of the Performance of Regrind / Flotation Circuits using Laboratory tests and Quantitative Mineralogical Information
(University of ExeterCamborne School of Mines, 2017-10-13)Three different regrind circuits were studied to assess whether it possible to predict the performance of the regrind circuits and the subsequent enrichment process. Process audits were conducted on one iron ore regrind ... -
The Dreyfus-McDowell Debate and the Limits of Reason
(University of ExeterDepartment of Sociology, Philosophy and Anthropology, 2018-01-15)In the Dreyfus-McDowell debate, John McDowell makes the claim that what makes us distinctively human is our all-pervasive conceptual rationality. Hubert Dreyfus, on the other hand, argues that we are, at our best, absorbed ...