Mostrando recursos 1 - 20 de 33

  1. A strategy for overcoming barriers to the successful implementation of lean construction in the UK

    Sarhan, Saad
    Lean construction efforts could prove to be highly rewarding for the construction industry. Although various countries gained large benefits by adopting the lean concepts, there seems to be a scarce implementation of lean in the UK construction industry over the last two decades even after the publication of the Egan report. Building upon the methodologies and conceptual frameworks used in earlier work in the UK (Common et al., 2000), the Netherlands (Johansen et al., 2002), and Germany (Johansen & Walter, 2007), this study carried out a similar survey to evaluate lean construction as practiced in the UK, and identify the...

  2. Employee recognition at work: a study of employee experiences

    Smith, Charlotte
    Despite evidence of its increasingly widespread use within organisations and a significant body of practitioner and “popular” literature on the subject, employee recognition has received relatively little empirical study by academic researchers. As a result, there are significant gaps in our knowledge, particularly around how recognition schemes actually operate in organisations and the ways in which they impact upon individuals and organisations. This thesis responds to these knowledge gaps through presenting empirical evidence collected through in-depth interviews with employees drawn from two organisations, an insurance company and a local council, about their experiences of recognition in the workplace. Taking...

  3. Decentralized estimation and control for power systems

    Singh, Abhinav Kumar
    This thesis presents a decentralized alternative to the centralized state-estimation and control technologies used in current power systems. Power systems span over vast geographical areas, and therefore require a robust and reliable communication network for centralized estimation and control. The supervisory control and data acquisition (SCADA) systems provide such a communication architecture and are currently employed for centralized estimation and control of power systems in a static manner. The SCADA systems operate at update rates which are not fast enough to provide appropriate estimation or control of transient or dynamic events occurring in power systems. Packet-switching based networked control system...

  4. Investigating the prevalence of traditional and novel chronic kidney disease risk factors in a mixed-aged, non-clinical population

    Mullan, Kyle
    Chronic kidney disease (CKD) is a common disorder that currently serves as a major global public health issue due to raised risk of cardiovascular disease (CVD), kidney failure, and other complications. With the ever-growing increase of ageing populations and rising global frequency of diabetes and other chronic non-transmissible diseases, present clinical data suggests a corresponding worldwide increase in prevalence of chronic kidney disease and end-stage renal failure (ESRF). The overall aims of this thesis was to study the prevalence of known traditional and novel CKD related risk factors in a non-clinical population, examine the applicability of several predictive equations in the...

  5. Understanding the design of energy interventions to reduce end-user demand in organisational and domestic environments

    Foster, Derek
    Energy demand is on the rise globally due to unchecked factors such as population growth, lifestyle choices, and the industrialization of developing countries. Governments are investing in technologies for efficient and renewable energy in an attempt to secure energy for the future over current dependencies on fossil fuels, but the development costs are high, and the rate of developed technologies is projected to fall far short of meeting global requirements. Overshadowing this growing appetite for energy is the global issue of climate change, igniting the scientific and humanitarian debate over the use of fossil fuels and a need for renewable energy,...

  6. Human-robot spatial interaction using probabilistic qualitative representations

    Dondrup, Christian
    Current human-aware navigation approaches use a predominantly metric representation of the interaction which makes them susceptible to changes in the environment. In order to accomplish reliable navigation in ever-changing human populated environments, the presented work aims to abstract from the underlying metric representation by using Qualitative Spatial Relations (QSR), namely the Qualitative Trajectory Calculus (QTC), for Human-Robot Spatial Interaction (HRSI). So far, this form of representing HRSI has been used to analyse different types of interactions online. This work extends this representation to be able to classify the interaction type online using incrementally updated QTC state chains, create a belief about the state of the world, and transform...

  7. DNA recognition and antimicrobial compounds: exploring the versatility of peptides

    Iyer, Abhishek
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  8. Deep visual learning with spike-timing dependent plasticity


    For most animal species, reliable and fast visual pattern recognition is vital for their survival. Ventral stream, a primary pathway within visual cortex, plays an important role in object representation and form recognition. It is a hierarchical system consisting of various visual areas, in which each visual area extracts different level of abstractions. It is known that the neurons within ventral stream use spikes to represent these abstractions. To increase the level of realism in a neural simulation, spiking neural network (SNN) is often used as the neural network model. From SNN point of view, the analog output values generated by traditional artificial neural network (ANN) can be...

  9. Bias in voting behaviour: endogenous and exogenous factors

    Noh, Zamira
    Despite the vast research on the social bias in decision-making, relatively little is known about biases in voting behaviour. The main aim of this research was to explore alternative indirect methods to observe biases in decision-making and voting behaviour. A proximity bias was first observed in the rather unusual setting of the Weakest Link TV game show, when contestants avoided casting negative votes against their closest neighbours. This proximity bias was most profound for the contestant closest to the voter. Two field experiments were designed to test whether this Neighbour Effect occurred in different social contexts, among the first-year undergraduate students. The first study asked first-year undergraduate students...

  10. Mental toughness and health-related lifestyle factors

    Stamp, Elizabeth
    Mental toughness (MT) originated within elite sport and was identified as an attribute of success. MT has emerged as being important for enhancing health-related lifestyle factors (HRLF; e.g., physical activity). Investigating the healthiness of one’s lifestyle appears a timely area to research given the current health status of the population. Therefore, the aim of this thesis was to investigate MT in relation to HRLF and weight loss. Study One investigated MT and HRLF in university students (n = 167). Self-reported MT, physical activity, exercise barriers, dietary behaviour, and psychological wellbeing were recorded. MT was significantly different between regular exercisers (M =...

  11. Understanding the ‘fast-track’ transition between elite athlete and high-performance coach in men’s association football and rugby union: a grounded theory

    Blackett, Alex
    It is commonplace for many high-performance coaches to be former elite athletes in the same sports they coach (Christensen, 2013; Mielke, 2007; Werthner & Trudel, 2009). In many cases, such individuals are ‘fast-tracked’ through formal coach accreditation structures into these high-performance coaching roles (Rynne, 2014). The reasons why former elite athletes dominate coaching roles in professional sports clubs and why a ‘fast-track’ pathway from elite athlete to high-performance coach is supported remain unclear. The project builds upon existing research on coach development to understand the social processes for how high-performance athletes negotiate the career transition into post-athletic high-performance coaching roles...

  12. Navigating the care system: feasibility and acceptability of the use of ICT to support older people with multimorbidity

    Vos, Jolien
    Health and social care systems, primarily designed for people with single diseases rather than those with multimorbidity (two or more long-term conditions [LTCs]), are becoming more complex. With increases in the older population, a rise of multimorbidity and greater fragmentation in the care landscape, little is known about how multimorbidity affects the patient’s task to find appropriate care in the right place and at the right time (i.e. care navigation). Difficulties in care navigation have proven to cause delays in access and use of inappropriate services. For older individuals with a number of LTCs, there is an urgent need to...

  13. The role of emotions in initial teacher training in English further education

    Hernon-Jarvis, Jane
    This thesis examines the emerging role of emotional labour in the context of Further Education (FE) colleges in England. These colleges provide Initial Teacher Training (ITT) courses of study for Further Education teachers who are training to become qualified practitioners in the English lifelong learning sector. Using four teacher trainees and four teacher trainers, the thesis explores the nature and scope of how emotional labour can impact on teacher trainees’ learning and the well-being of both teacher trainees and teacher trainers in order to investigate how the insights gleaned would help to develop practice in the field of English ITT...

  14. Human-macaque encounters in Ifrane National Park, Morocco: behavioural, spatial, and temporal coping strategies of the Barbary macaque (Macaca sylvanus)

    Waterman, James Oliver
    Wild animals in human-dominated landscapes are exposed to a broad range of human activities and infrastructure that have the potential to alter their fitness and behaviour. Understanding wildlife responses to human disturbance is an important conservation goal, particularly when the fate of many wildlife populations depends on their capacity to coexist with humans. Most field studies have focussed on the effects of one type of disturbance only (i.e. a single disturbance type per study), however in heavily human-modified habitats animals must often deal with numerous different types of human activity and infrastructure, and less is known about whether different types...

  15. Primary caregiving fathers and breadwinning mothers: social psychological mechanisms underlying the division of family roles

    Pinho, Mariana Lobo
    Over recent decades there has been significant progress towards gender equality in the workplace and at home. Transformations in work and childcare domains have occurred for families in Western societies, including de-gendered parenting, in which childcare responsibilities are shared equally or assumed primarily by the father. Although these arrangements constitute a recent and rare phenomenon, this increase in proportion has been matched by an academic interest. Using quantitative data from traditional and role-reversed couples, this research aims to explore the social psychological mechanisms underlying non-normative behavioural choices, as well as the consequences for couples' relationship quality, well-being and life satisfaction. Traditional...

  16. An exploratory study on educating learners with ASD in primary inclusive setting in Saudi Arabia: issues, attitudes, and challenges

    Alzaidi, Faten Abdulhadi
    The purpose of this research is to facilitate the development and understanding of inclusive education for students with Autism Spectrum Disorder (ASD) in Saudi Arabia. The study is located within Riyadh, a city in Saudi Arabia. The culture and religion of Saudi society are central themes in this study. ASD is a complex disorder due to its characteristics, which include a lack of social skills, communication difficulties, and behaviour problems. A range of qualitative methods were adopted; interviews with twenty general education teachers (GT) and special education teachers (SET) as well as participant observation in five schools. The research seeks to identify the attitudes and practices of...

  17. The effect of family structure on adolescents in Saudi Arabia: a comparison between adolescents from monogamous and polygamous families

    Al-Sharfi, Mohammad Ahmad
    This study investigated the effects of family structure on 13-18 year-old adolescents in Saudi Arabia. Comparisons were made between adolescents from polygamous and monogamous families in psychological well-being (self-esteem, satisfaction with life, depression), bullying and victimization. A series of investigations assessed the effects of family structure and several demographic variables on adolescents’ psychological well-being and behaviour. Also, the mediating role of parent-adolescent relationships measured by parent-adolescent bonding and father availability was investigated. A systematic review of previous research established that few studies had investigated mediating variables, such as demographic variables. In the first study, comparisons were made between 98 adolescents from...

  18. Giving teachers a voice within the teacher effectiveness paradigm: a mixed methods study focusing on teachers’ perceptions of the impact of their classroom practices on student outcomes in mathematics

    Mulligan, Maria McMahon
    The purpose of this research is to add to the teacher effectiveness research paradigm by furthering understanding about how teachers promote student learning and achievement in mathematics. Across the teacher effectiveness paradigm, there has been a great deal of research that quantitatively measures the value added by teachers to student achievement on standardised tests. However, there is a current under-representation of the voices of teachers about how and why certain factors promote student achievement in mathematics. Therefore, in order to address the complexity of the teaching and learning process, this mixed methods study draws upon secondary TIMSS 2011 data, as...

  19. Virtual reality video game spectating

    Gallacher, Jack Leslie
    The effects of wearing a Virtual Reality headset is something that had not been fully investigated due to how new the consumer devices are. Using an Oculus Rift DK2, an accelerometer and adapting past studies by Geri (2002) and LoPresti (2003), a purpose made application was created that studied the effect of a Virtual Reality headset on head movement. While it was found that Virtual Reality headsets do not affect head movement, the process of creating the test application uncovered a potential issue with the Unity game engine where data spikes occur at regular intervals when a stream-reader is used...

  20. Synthesis of 1,2,4 oxadiazol-5-imine, 1,2,4-triazol-3-imine and derivatives: a substituted cyanamide-based strategy for heterocycle synthesis

    Bhat, Shreesha V.
    Considering the importance of nitrogen-rich heterocycles in drug discovery, a novel strategy towards heterocycle synthesis was envisioned using cyanamide chemistry. Synthesis which involve mild conditions, avoids multi-step sequence and non-toxic reagents are desirable for generation of large combinatorial libraries of drug molecules. We envisaged that the NCN linkage of the cyanamide as well as the concomitant use of the nucleo-and electrophilic centres of the cyanamide could provide a novel synthetic route towards nitrogen heterocycles. The first part (Ch-2) constitute the bulk of the thesis and it focuses on the generation of cyanamide ion and its cyclisative capture with a 1,3-dipole –...

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