• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 26
  • 8
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • Tagged with
  • 111
  • 26
  • 15
  • 14
  • 13
  • 13
  • 12
  • 12
  • 11
  • 8
  • 8
  • 8
  • 8
  • 8
  • 7
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
101

Biomarkers for cardiovascular risk prediction in people with type 2 diabetes

Price, Anna Helen January 2017 (has links)
Introduction: Type 2 diabetes continues to be one of the most common non-communicable diseases worldwide and complications due to type 2 diabetes, such as cardiovascular disease (CVD) can cause severe disability and even death. Despite advances in the development and validation of cardiovascular risk scores, those used in clinical practice perform inadequately for people with type 2 diabetes. Research has suggested that particular non-traditional biomarkers and novel omics data may provide additional value to risk scores over-and-above traditional predictors. Aims: To determine whether a small panel of non-traditional biomarkers improve prediction models based on a current cardiovascular risk score (QRISK2), either individually or in combination, in people with type 2 diabetes. Furthermore, to investigate a set of 228 metabolites and their associations with CVD, independent of well-established cardiovascular risk factors, in order to identify potential new predictors of CVD for future research. Methods: Analyses used the Edinburgh Type 2 Diabetes Study (ET2DS), a prospective cohort of 1066 men and women with type 2 diabetes aged 60-75 years at baseline. Participants were followed for eight years, during which time 205 had a cardiovascular event. Additionally, for omics analyses, four cohorts from the UCL-LSHTM-Edinburgh-Bristol (UCLEB) consortium were combined with the ET2DS. Across all studies, 1005 (44.73%) participants had CVD at baseline or experienced a cardiovascular event during follow-up. Results: In the ET2DS, higher levels of high sensitivity cardiac troponin (hs-cTnT) and N-terminal pro-brain natriuretic peptide (NT-proBNP) and lower levels of ankle brachial pressure index (ABI) were associated with incident cardiovascular events, independent of QRISK2 and pre-existing cardiovascular disease (odds ratios per one SD increase in biomarker 1.35 (95% CI: 1.13, 1.61), 1.23 (1.02, 1.49) and 0.86 (0.73, 1.00) respectively). The addition of each biomarker to a model including just QRISK2 variables improved the c-statistic, with the biggest increase for hs-cTnT (from 0.722 (0.681, 0.763) to 0.732 (0.690, 0.774)). When multiple biomarkers were considered in combination, the greatest c-statistic was found for a model which included ABI, hs-cTnT and gamma-glutamyl transpeptidase (0.740 (0.699, 0.781)). In the combined cohorts from the UCLEB consortium, a small number of high-density lipoprotein (HDL) particles were found to be significantly associated with CVD: concentration of medium HDL particles, total lipids in medium HDL, phospholipids in medium HDL and phospholipids in small HDL. These associations persisted after adjustment for a range of traditional cardiovascular risk factors including age, sex, blood pressure, smoking and HDL to total cholesterol ratio. Conclusions: In older people with type 2 diabetes, a range of non-traditional biomarkers increased predictive ability for cardiovascular events over-and-above the commonly used QRISK2 score, and a combination of biomarkers may provide the best improvement. Furthermore, a small number of novel omics biomarkers were identified which may further improve risk scores or provide better prediction than traditional lipid measurements such as HDL cholesterol.
102

Britské radikální reformní hnutí v období 1792-1795 / British radical reform movement in the period 1792-1795

Borodáčová, Jana January 2018 (has links)
This thesis is focused on the development of the English and Scottish radical reform movement in the 1790s and analyzes the relationship between the British government and the radical reformers who endeavored for introduction of universal suffrage and annual parliaments. The thesis also emphasizes the reaction of a large part of the public, and especially the wealthy, who in fear of spreading the ideas of the French Revolution, decided to suppress the activities of the reformers through the so-called loyalist movement. The result of fear of loyalists from the threat of domestic Jacobinism was a wave of persecution, which ended with great political trials in Scotland and England in 1793 and 1794. The thesis is also focused on the question of the influence of the French Revolution on the activities of the reformers and explains to what extent, the ideas of republicanism prevailed among the radicals. The work also emphasizes that not only thoughts of the French Revolution but also an effect of the domestic reform tradition and Glorious Revolution had an impact on the ideas of the radical reformers. In addition, this thesis analyses also the activities of the reformers themselves, who founded in 1792 a number of new societies whose membership base consisted mainly of the working class. British...
103

The translation and validation of the Postpartum Depression Screening Scale (PDSS) : towards improving screening for postpartum depression in English- and Afrikaans-speaking South African women

Struik, Melony 16 June 2012 (has links)
Postpartum depression is an illness that is frequently unreported and undetected for a variety of reasons and may be potentially devastating for the mother affected as well as her family. Routine screening of postpartum women enables health practitioners to detect symptoms of PPD early and provides an opportunity for early intervention which may improve the outcome and increase the mother’s chances of an earlier recovery. It is therefore important that reliable and convenient screening tools are available to health practitioners who have contact with postpartum women. The primary objective of this research was to make an Afrikaans version of an existing screening scale available – the Postpartum Depression Screening Scale (PDSS), designed specifically to encompass the multifaceted phenomenon of PPD. In accordance with this objective, the validity and reliability of the PDSS and its Afrikaans version was investigated in English- and Afrikaans-speaking South African mothers. A further objective of this study was to compare the performance of the PDSS with the Edinburgh Postnatal Depression Scale (EPDS) and the Quick Inventory of Depressive Symptomatology (QIDS-SR16). Various factors have been reported to be associated with the development of PPD. The final objective of this study was to explore the relationship between known risk factors for PPD and high scores on the PDSS amongst women in South African. A total of 365 South African mothers, between 4 and 16 weeks postpartum participated in this study. English-speaking mothers (n = 187) completed the PDSS, EPDS, QIDS, and a demographic and psychosocial questionnaire, while Afrikaans speaking mothers (n = 178) completed the respective Afrikaans versions of these questionnaires. A multiple translation method – Brislin’s back-translation method and the committee approach – was used to translate the PDSS and the QIDS into Afrikaans. An item response theory (IRT), Rasch analysis, was used to examine dimensionality, item difficulty, differential item functioning, and category functioning of the PDSS and the Afrikaans PDSS. Results reveal excellent person reliability estimates for the Afrikaans PDSS as well as for the PDSS in a South African sample. Both language versions performed reasonably well and the majority of items in the PDSS dimensions and the Afrikaans PDSS dimensions demonstrated fit statistics that supported the underlying constructs of each dimension. Some items were identified as problematic, namely Item 2, Item 25, Item 28, and Item 30. The item person construct maps show reasonably good spread of items. There were, however, persons that scored higher than the items could measure and an overrepresentation of items at the mean level. The Likert response categories proved to be effective for all the Afrikaans PDSS items and almost all the PDSS items. Results indicate that 49.7% of mothers screened positive for major PPD using the PDSS. A further 17.3% of mothers obtained scores indicating the presence of significant symptoms of PPD. Statistically significant correlations were obtained between total scores on the PDSS, the EPDS, and the QIDS-SR16. Stepwise multiple regression analysis identified 11 variables that were significantly associated with a high PDSS total score. These were a history of psychiatric illness, postpartum blues, feeling negative or ambivalent about expecting this baby, fearful of childbirth, infant temperament, antenatal depression in recent pregnancy, lack of support from the baby’s father, concern about health related issues regarding the infant, lack of support from friends, difficulty conceiving, and life stress. / Thesis (PhD)--University of Pretoria, 2012. / Psychology / unrestricted
104

Peter Guthrie Tait : new insights into aspects of his life and work : and associated topics in the history of mathematics

Lewis, Elizabeth Faith January 2015 (has links)
In this thesis I present new insights into aspects of Peter Guthrie Tait's life and work, derived principally from largely-unexplored primary source material: Tait's scrapbook, the Tait–Maxwell school-book and Tait's pocket notebook. By way of associated historical insights, I also come to discuss the innovative and far-reaching mathematics of the elusive Frenchman, C.-V. Mourey. P. G. Tait (1831–1901) F.R.S.E., Professor of Mathematics at the Queen's College, Belfast (1854–1860) and of Natural Philosophy at the University of Edinburgh (1860–1901), was one of the leading physicists and mathematicians in Europe in the nineteenth century. His expertise encompassed the breadth of physical science and mathematics. However, since the nineteenth century he has been unfortunately overlooked—overshadowed, perhaps, by the brilliance of his personal friends, James Clerk Maxwell (1831–1879), Sir William Rowan Hamilton (1805–1865) and William Thomson (1824–1907), later Lord Kelvin. Here I present the results of extensive research into the Tait family history. I explore the spiritual aspect of Tait's life in connection with The Unseen Universe (1875) which Tait co-authored with Balfour Stewart (1828–1887). I also reveal Tait's surprising involvement in statistics and give an account of his introduction to complex numbers, as a schoolboy at the Edinburgh Academy. A highlight of the thesis is a re-evaluation of C.-V. Mourey's 1828 work, La Vraie Théorie des quantités négatives et des quantités prétendues imaginaires, which I consider from the perspective of algebraic reform. The thesis also contains: (i) a transcription of an unpublished paper by Hamilton on the fundamental theorem of algebra which was inspired by Mourey and (ii) new biographical information on Mourey.
105

"Enough! or too much" : forms of textual excess in Blake, Wordsworth, Coleridge and De Quincey

Kellett, Lucy January 2016 (has links)
My thesis explores the potential and the peril of Romantic literature's increasingly complex forms through a close comparative study of the works of William Blake, William Wordsworth, Samuel Taylor Coleridge and Thomas De Quincey. These writers exemplify the Romantic predicament of how to make vision manifest – how to communicate one's imaginative and intellectual expansiveness without diminishing it. They sought different strategies for increasing the capacity of literary form, ostensibly in the hope of communicating more: clarifying meaning, increasing accessibility and intensifying original experience. But textual expansion – materially, stylistically and intellectually – often threatens more opportunities for confused and partial meanings to proliferate, overwhelming the reader by dividing texts and undermining attempts at coherent thought. Expansion thus becomes excess, with all its worrying associations of superfluity. To further complicate matters, Burke's influential tenet of the Sublime makes a virtue out of excess and obscurity, raising the problematic spectre of deliberately confused/confusing texts that embody an aesthetic of incomprehension. I explore these paradoxes through four types of 'textual excess' demonstrated by the writers under discussion: firstly, the tension between poetry and prose adjuncts, such as prefaces and notes, in Wordsworth and Coleridge; secondly, De Quincey's indulgent verbosity and struggle to control the freeing shapelessness of prose; thirdly, Wordsworth's and De Quincey's parallel experiences of revision as both uncontrollably diffusive and statically concentrated; and lastly, Blake's more deliberate, systematic attempt to enact a literary Sublime in which the reader is forced out of passivity by the competing demands of verbal and visual media. All are motivated and thwarted in varying degrees by their anxious preoccupation with saying "Enough", and the difficulty of determining when this becomes “Too much”. These authorial dilemmas also incorporate larger concerns with man's (over)ambition at a time of rapid and unprecedented economic, social and intellectual acceleration from the Enlightenment to industrialism. The fear that the concept and process of 'progress', or 'improvement', marks deficiency rather than fulfilment haunts Romantic writers.
106

La "poetica dell'incontrollabilità": l'Endymion di Keats, la lingua e i periodici romantici / The "Poetics of Uncontrollability": Keats's "Endymion", Language and Romantic Periodicals

ANSELMO, ANNA 14 February 2011 (has links)
"Endymion" è il traît d'union tra i juvenilia di Keats ("Poems", 1817) e i suoi lavori più conosciuti ("Lamia, Isabella ... and other Poems"). Per sua natura, è un'opera di transizione e quindi concede allo studioso un punto di vista privilegiato sullo sviluppo della poetica e della lingua di Keats. Inoltre, l'"Endymion" è l'opera keatsiana più aspramente contestata dalla critica romantica. Gli studiosi moderni hanno analizzato il problema alla luce di considerazioni socio-politiche, il mio lavoro mira invece ad un'analisi più strettamente linguistica. Ricostruisco il contesto linguistico del diciottesimo e diciannovesimo secolo al fine di spiegare il disagio dei recensori nei confronti di "Endymion". Sostengo che il prescrittivismo del Settecento nasce da una profonda ansia relativa alla lingua, causata dalle teorie di Locke. L'atteggiamento prescrittivista influenza la critica romantica e i critici di Keats in particolare, più di quanto potessero fare considerazioni di natura politica. Analizzo le peculiarità linguistiche e strutturali di "Endymion" al fine di provare che Keats elabora una 'poetica dell'incontrollabilità', una serie di strategie stilistiche e testuali, che violano le convenzioni linguistiche e narrative e che vengono quindi percepite come destabilizzanti e stranianti. / "Endymion" is the traît d’union between Keats’s juvenilia ("Poems", 1817)and his better known, and, conventionally, ’mature’ works ("Lamia, Is- abella ... and other Poems", 1820). By its nature, it is a transitional work, and thus gives the scholar special insight into the development of Keats’s poetics and idiom. Moreover, "Endymion" is the Keatsian work which most irritated and provoked contemporary critics; the two pieces of venomous invective it received in the periodical press of the time have become the stuff of scholarly legend. Recent scholarly work has analysed the language of "Endymion" in socio-political terms; my work focuses on more strictly linguistic concerns. I reconstruct the linguistic context of the eighteenth and early nineteenth centuries in order to explain the reviewers’ unease with regard to "Endymion". I maintain that eighteenth-century prescriptivism arose from a deep-seated anxiety regarding language, Lockian in origin, and that the ensuing desire to stabilize and therefore control language informed Romantic criticism in general, and the criticism of Keats’s work in particular, more fundamentally than politics could or did. I analyse the imaginative and linguistic markers of "Endymion" in order to prove that Keats had elaborated a “poetics of uncontrollability”, a series of textual and stylistic strategies, which violated linguistic and narrative standards and were therefore perceived as unsettling.
107

Economic impact studies and methodological bias : the case of the National Arts Festival in South Africa

Bragge, Brent Reuben January 2011 (has links)
Over the course of the last three decades, it has become popular practice to evaluate tourism events like cultural festivals in financial terms, through the use of economic impact studies. This can be attributed at least in part to the notable growth in the number of festivals being held globally and, as such, a higher level of competition between festivals for the limited funding which is available. Economic impact studies, and the resultant findings, have thus become powerful tools for the lobbying of sponsorship, and it has become increasingly important that the impact calculations be as accurate as possible, so as to effectively allocate both government and private resources to projects which will be of the greatest benefit to the host region. The allocation of funding is especially vital in an area like the Eastern Cape Province of South Africa, which is faced with many financial difficulties. The allocation of public funds to an event like the National Arts Festival, which is hosted in a relatively wealthy part of the province, might be weighed against initiatives which directly benefit the poorer parts of the region. Although it is acknowledged that the benefits which are felt by the host community of a cultural event go beyond that of the financial, it is often on this basis that festivals are most easily compared. The primary goal of the thesis was to analyse the various forms of methodological bias which can exist in the economic impact analyses (EIA) associated with cultural events. Theoretical considerations were discussed, specifically regarding economic impact as a method of measuring value. Various forms of bias (including data collection, the calculation of visitor numbers, multipliers, defining the area of interest, inclusion of visitor spending, and accounting for benefits only, not costs) are put into a real-life context, through the investigation of economic impact studies conducted on three selected South African festivals (the Volksblad, the Klein Karoo Nasionale Kunstfees, and the National Arts Festival), and one international festival (the Edinburgh Festival). An in-depth comparison of two separate studies conducted at the National Arts Festival (NAF) in 2004 (by Antrobus and Snowball) and 2005 (by Saayman et al.) was made, focussing on the manner in which the economic impact was calculated. Having considered the common forms of bias, and assessing several possible reasons for the difference of approximately twenty million Rand in the advertised economic impacts, it was concluded that, most likely, the miscalculation of visitor numbers was the cause. This was confirmed when the Antrobus and Saayman methods were applied to the 2006 NAF data, and noting that the economic impact figures arrived at were strikingly similar. As such, it is advisable that extreme caution be taken when calculating visitor numbers, as they can significantly influence the outcome of an economic impact study. It is recommended that each study should also have transparent checks in place, regarding the key calculation figures, to ensure that less scrupulous researchers are not as easily able to succumb to the pressure event sponsors might impose to produce inflated impact values.
108

Assessing and Responding to Maternal Stress (ARMS) : antenatal psychosocial assessment in research and practice

Darwin, Zoe January 2013 (has links)
Background: Antenatal Psychosocial Assessment (APA) has recently been introduced into routine antenatal care, but the ways in which maternity service providers assess and respond to maternal stress are subject of debate. There is a lack of consensus on the instrument(s) of choice and lack of evidence regarding appropriate interventions. Further, national guidelines have not kept apace with the conceptual shift from ‘postnatal depression’ to ‘perinatal anxiety and depression’. Adopting the Medical Research Council Complex Interventions Framework, the ARMS research aimed to inform the development of interventions that support women who are experiencing, or at risk of, mild-moderate mental health disorder in pregnancy. Methods: A mixed methods approach was adopted. In the quantitative element (Study Part 1) participants (n=191) completed a questionnaire when attending for their first formal antenatal appointment, using a procedure and materials that had been previously tested in a pilot study. Details including mental health assessment and referrals were obtained from their health records, following delivery. In the qualitative element (Study Part 2) a sub-sample of women (n=22) experiencing high levels of maternal stress took part in up to three serial in-depth interviews during pregnancy and the early postnatal period.Findings: Maternal stress was found to be common. Using the Edinburgh Postnatal Depression Scale (EPDS) threshold of ≥10, approximately 1 in 4 women were classed as high depression (halving to 1 in 8 at the more conservative threshold of ≥13). Almost 1 in 3 women were classed as high anxiety, using the state scale of the State-Trait Anxiety Inventory (STAI-S, threshold ≥41), compared with 1 in 5 using the two-item GAD (threshold ≥3). Fewer than half of the women identified as high anxiety were identified by both measures. Factor analyses of the symptom measures were consistent with wider literature suggesting a three-item anxiety component of the EPDS; however, concurrent validation using regression analyses did not indicate that the EPDS could be used as an anxiety case finding instrument. Women reported that maternal stress had significant impact on their lives that may not be captured with existing clinical approaches. Women commonly found it difficult to self-assess severity of maternal stress and the assessment process could itself act as an intervention. The research provided the first validation of the depression case finding questions in UK clinical practice. The Whooley items completed in clinical practice identified only half of the possible cases identified by the EPDS, at both commonly adopted EPDS thresholds. Inclusion of the Arroll 'help' question as a criterion improved specificity of the assessment completed in clinical practice but substantially compromised sensitivity, missing 9 in 10 possible cases. Women’s mental health history and treatment history were similarly under-reported, particularly concerning anxiety. APA was introduced into routine clinical practice without attention to topics of relevance to women, context of disclosure or to provision of adequate resources for consistently responding to identified need. Women experiencing, or at risk of, mild-moderate disorder were thus usually ineligible for further support. Implications: Care pathways are needed that encompass both assessing and responding to maternal stress, where communication with health professionals, subsequent referral and management are addressed. The development, implementation and evaluation of low-cost resources embedded in such pathways are a priority and the research presented in the thesis offers a foundation on which to build.
109

Postpartum depression and maternal adjustment: An investigation into some risk factors

Hargovan, Dhaksha C. January 1994 (has links)
Magister Psychologiae - MPsych / The aim of the present study was to determine whether it was possible to identify changes in levels of postpartum depression and maternal adjustment and attitude in primiparae before and after birth. It aimed, furthermore, at assessing certain risk factors that could provide an understanding of the etiological factors (causes, determinants) influencing postpartum levels of depression and maternal adjustment and attitude. The study focused on risk factors among married and unmarried primiparae (first time mothers), with a view to establishing vulnerability profiles of the respective groups. The specific risk factors that formed part of the investigation were social support, personality (neuroticism) and life events. All the subjects investigated were recruited from the Mitchells Plain Maternity and Obstetrics Unit. A sample of 70 subjects, in the third trimester of pregnancy, voluntarily participated in the first part of this study. Of these, 26 belonged to the married group and 44 belonged to the unmarried group. As a result of the attrition factor, 57 subjects constituted the final sample for analysis. The final sample comprised 20 married and 37 unmarried subjects. Subjects were followed up four to eight weeks postpartum. Results revealed that there were no significant changes in levels of depression between the married and unmarried groups, either before or after delivery. Of significance was that with the event of birth, the depression scores amongst women rated high in neuroticism decreased significantly. Married women with high social support satisfaction scores were found to have low depression scores. Similarly, married women who experienced fewer negative life events had lower levels of depression than did the unmarried women who experienced fewer negative life events. The maternal adjustment and attitude scores did not change before or after birth, except in the married group. The married group showed a significant increase in scores on the maternal adjustment and attitude scores after the birth of the child. Regarding personality (neuroticism), the high neuroticism scorers had significantly lower maternal adjustment and attitude than did the low neuroticism scorers. As was the case with social support and depression, married women with high social support had a higher maternal adjustment and attitude. A significant effect of negative life events on maternal adjustment and attitude was only found for the married women (after delivery) who experienced a low number of life events. A stepwise multiple regression analysis was performed, in order to yield a model in which the depression and maternal adjustment and attitude scores would be predicted by risk factors. The finding of this analysis for both depression and maternal attitude and adjustment was not significant. Social Identity theory was suggested as a possible interpretation of these results. Future research which views social identity as a factor in understanding postpartum depression and maternal adjustment and attitude has been proposed .
110

La ville de Rebus : polarités urbaines dans les romans d'Ian Rankin (1987-2007) / Rebus's City : urban polarities in the novels of Ian Rankin (1987-2007)

Dujarric, Florence 07 December 2013 (has links)
La présente étude analyse les représentations de la ville dans la série policière d’Ian Rankin dont l’inspecteur John Rebus est le protagoniste. La polarité étant l’un des principes organisateurs de l’écriture rankinienne, notre analyse s’articule autour de plusieurs couples de notions antinomiques. Nous remettons d’abord en cause la légitimité de l’antinomie qui oppose la littérature à la « littérature de masse », dans laquelle est souvent classé le roman policier. Cela nous conduit à redéfinir le roman policier, et mettre en perspective la série dans le contexte du monde littéraire et artistique écossais contemporain. Puis nous étudions l’articulation entre topographie réelle et lieu imaginaire dans l’Edimbourg de Rankin. Toute une géographie urbaine se dessine dans les romans ; l’arpentage incessant de l’espace par le protagoniste fournit l’occasion de références très spécifiques à la topographie et à la toponymie, et la sérialité tisse peu à peu un dense réseau de points nodaux ainsi qu’une multiplicité de trajets potentiels que nous avons représentés par des cartes fournies en annexe. Mais dans d’autres cas, l’espace se fait générique, se réfère plus à des conventions cinématographiques qu’à la carte de la ville. Nous envisageons enfin la ville d’Edimbourg comme un personnage ambivalent dans la lignée des personnages du roman gothique. La filiation gothique est perceptible dans l’esthétique de la ville, et la surface de la carte est compartimentée suivant un ensemble d’axes polarisants. Toutefois, cette carte se déploie elle-même par-dessus un double souterrain et non cartographiable d’Edimbourg, à la fois mémoire et inconscient de la ville. / The aim of the present study is to analyse the representations of the city to be found in Ian Rankin’s crime fiction series of which Inspector Rebus is the protagonist. Polarization being one of the structuring principles of the author’s writing, our work focuses on several pairs of antagonist notions in turn.The first one is the opposition between “high” and “low” (or “popular”) literature, the latter category being often associated with crime fiction. New categorizations of contemporary Scottish crime fiction are thus put to the test so as to assess its role and place within the landscape of Scottish literary and artistic life.Next the way Rankin’s novels map Edinburgh as a topography both real and imaginary is explored. As John Rebus endlessly paces the streets of the city, a literary geography gradually emerges and takes shape from one novel to the next, thus determining a network of focal points and potential trajectories which are depicted in the maps to be found in the annexes. This does not preclude the use of a more urban-generic type of space, which seems to have been modelled on representations of the city deriving from movies.In time, Rebus’ Edinburgh can be seen as a character in its own right, one fraught with ambiguities stemming from the Gothic novel tradition. This Gothic filiation is visible in the aesthetic of the city, while the polarity between surface representations and subterranean depths, full of twists and turns, calls into question the very possibility of mapping the city as it gradually discloses its past and unconscious memories.

Page generated in 0.0724 seconds