Kurt Vonnegut’s Slaughterhouse-Five focuses on Billy Pilgrim’s travels through time and his experiences during World War II. More than that, it is a story about the journey of a clearly troubled protagonist whose mental state, best described as broken, is never fully explored in the novel. The aim of this essay is to bring light to the intricacies of Billy’s curious mental state, and to explore the theory that the alien encounters as well as the time travelling that he experiences are the result of Post-Traumatic Stress Disorder that Billy suffers from. This is done by analyzing Billy’s experiences with time travel, emotional numbing, and Tralfamadorians and connecting it to known symptoms and causes of PTSD. The results show that Billy does indeed showcase strong signs of PTSD, which were most likely caused by a combination of childhood experiences and trauma during the war. This PTSD manifests itself through Billy’s time travelling and alien encounters, which are used as a coping mechanism. / Kurt Vonneguts Slakthus 5 fokuserar på Billy Pilgrims resor genom tiden och hans upplevelser under andra världskriget. Ännu mer än det så är det en berättelse om resan av en helt klart besvärad huvudperson vars mentala tillstånd, som bäst kan beskrivas som brutet, aldrig riktigt förklaras i romanen. Syftet med denna uppsats är att skapa en klarhet till förvecklingarna av Billys besynnerliga mentala tillstånd, och att undersöka teorin att utomjordingarna såväl som resorna genom tiden som han upplever är resultat av posttraumatisk stressyndrom som Billy lider av. Detta utförs genom att analysera Billys upplevelser av tidsresor, emotionellt bedövande och Tralfamadorer och ansluta dem till symtomer och orsaker till PTSD. Resultaten visar att Billy visar tydliga tecken på PTSD, som troligen orsakades av en kombination av barndomsupplevelser och trauma under sin tid som soldat. Denna PTSD manifisterar sig genom Billys tidsresor och möten med utomjordingar, som används som en coping mekanism.

Philosophiae Doctor - PhD / Several lines of cellular and physiological evidence have suggested the presence of a novel class of systemically mobile plant molecules that are recognized by antibodies generated against vertebrate atrial natriuretic peptides (ANPs). Functional characterization of these immunoanalogues, referred to as immunoreactive plant natriuretic peptides (irPNPs) or plant natriuretic peptides (PNPs), has shown that they play important roles in a number of cellular processes crucial for plant growth and maintenance of cellular homeostasis. Although the various biological roles of PNPs in plants are known, their exact mode of action remains elusive. To elucidate the mechanisms of action for these immunoanalogues, we have prepared a biologically active recombinant PNP from Arabidopsis thaliana (AtPNP-A) and the biological activity was demonstrated by showing its ability to induce water uptake into Arabidopsis thaliana protoplasts. In addition, the molecule was shown to downregulate photosynthesis while at the same time up-regulating respiration, transpiration as well as net water uptake and retention capacities in the sage Plectranthus ecklonii. Further analysis of the recombinant AtPNP-A indicated that the peptide can induce systemic response signalling though the phloem. A recombinant Arabidopsis wall associated kinase-like protein (AtWAKL10) that has a domain organization resembling that of vertebrate natriuretic peptide (NP) receptors was also partially characterized as a possible receptor for the recombinant AtPNP-A. Vertebrate NP receptors contain an extracellular ligand-binding domain and an intracellular guanylate cyclase (GC)/kinase domain and signal through the activity of their GC domain that is capable of generating intracellular cGMP from GTP. The structural resemblance of AtWAKL10 to vertebrate NP receptors could suggest a functional homology with receptor molecules and it is conceivable that such a receptor may recognize PNPs as ligands. The characterization of the recombinant AtWAKL10 showed that the molecule functions as both a GC and a kinase in vitro. This strengthened the suggestion that AtWAKL10 could be a possible AtPNP-A receptor especially considering the fact that AtPNP-A applications to plant cells also trigger cGMP transients. Furthermore, a bioinformatic analysis of the functions of AtPNP-A and AtWAKL10 has inferred both molecules in plant pathogen responses and defense mechanisms, thus indirectly functionally linking the two proteins. / South Africa

The thesis develops an understanding of the relationship between populism and the changes in the media landscape brought about by the advent of web 2.0. Its aim is to explain the rapid emergence of the Beppe Grillo’s Five Star Movement in Italy. A contextual analysis of the structures of opportunities reveals that the key to understand the ‘success’ of 5SM lays in the fact that the political actor fully exploited the affordances of the Web 2.0, making them resonate with the ‘thin’ ideology of populism. The advent of web 2.0 can then benefit political actors employing a populist ideology in three ways; enhancing the declining trust and separation between people and the political establishment, providing a seemingly more direct form of communication with the electorate and providing a new way of constructing the ‘people’ of populism through the networks. / Graduate

This thesis presents models and algorithms necessary to simulate the five-axis flank milling of jet-engine impellers in a virtual environment. The impellers are used in the compression stage of the engine and are costly, difficult to machine, and time-consuming to manufacture. To improve the productivity of the flank milling operations, a procedure to predict and optimize the cutting process is proposed. The contributions of the thesis include a novel cutter-workpiece engagement calculation algorithm, a five-axis flank milling cutting mechanics model, two methods of optimizing feed rates for impeller machining tool paths and a new five-axis chatter stability algorithm. A semi-discrete, solid-modeling-based method of obtaining cutter-workpiece engagement (CWE) maps for five-axis flank milling with tapered ball-end mills is developed. It is compared against a benchmark z-buffer CWE calculation method, and is found to generate more accurate maps. A cutting force prediction model for five-axis flank milling is developed. This model is able to incorporate five-axis motion, serrated, variable-pitch, tapered, helical ball-end mills and irregular cutter-workpiece engagement maps. Simulated cutting forces are compared against experimental data collected with a rotating dynamometer. Predicted X and Y forces and cutting torque are found to have a reasonable agreement with the measured values. Two offline methods of optimizing the linear and angular feeds for the five-axis flank milling of impellers are developed. Both offer a systematic means of finding the highest feed possible, while respecting multiple constraints on the process outputs. In the thesis, application of these algorithms is shown to reduce the machining time for an impeller roughing tool path. Finally, a chatter stability algorithm is introduced that can be used to predict the stability of five-axis flank milling operations with general cutter geometry and irregular cutter-workpiece engagement maps. Currently, the new algorithm gives chatter stability predictions suitable for high speed five-axis flank milling. However, for low-speed impeller machining, these predictions are not accurate, due to the process damping that occurs in the physical system. At the time, this effect is difficult to model and is beyond the scope of the thesis. / Applied Science, Faculty of / Mechanical Engineering, Department of / Graduate

Personality plays an important role in various aspects of our daily life. It is being used in many application scenarios such as i) personalized marketing and advertisement of commercial products, ii) designing personalized ambient environments, iii) personalized avatars in virtual world, and iv) by psychologists to treat various mental and personality disorders. Traditional methods of personality assessment require a long questionnaire to be completed, which is time consuming. On the other hand, several works have been published that seek to acquire various personality traits by analyzing Internet usage statistics. Researchers have used Facebook, Twitter, YouTube, and various other websites to collect usage statistics. However, we are still far from a successful outcome. This thesis uses a range of divergent features of Facebook and LinkedIn social networks, both separately and collectively, in order to achieve better results. In this work, the big five personality trait model is used to analyze the five traits: openness to experience, conscientiousness, extroversion, agreeableness, and neuroticism. The experimental results show that the accuracy of personality detection improves with the use of complementary features of multiple social networks (Facebook and LinkedIn, in our case) for openness, conscientiousness, agreeableness, and neuroticism. However, for extroversion we found that the use of only LinkedIn features provides better results than the use of only Facebook features or both Facebook and LinkedIn features.

This work deals with public relations, its goals and instruments, and focuses on non-profit project Five P. The work presents a volunteer program in the Czech and foreign form. In the practical part is made a research through a questionnaire and are defined the methods of recruitment volunteers for the program and possible solutions to improve the effectiveness of recruitment activities.

Sherlock Holmes har visat på slutledningskonsten att koppla ledtrådar från en situation till personlighet. Är det då inte möjligt att säga mer om en person på bas av föremål som är relativt statiska/konsistenta i ens användning över hela dagen? Praktiserandet av profilering baseras på sambandet mellan personlighet och beteende men forskning har visat att beteenden inte alltid speglar vår personlighet. Denna studie syftade till att undersöka om personlighet kunde användas som prediktor till föremål. En förstudie med sju deltagare gjordes för att utforma en checklista med 48 föremål som sammanfogades med Big Five till en webbenkät. Webbenkäten besvarades av 449 kvinnor. De 48 föremålen användes som beroende variabler i simultana logistiska regressionsanalyser varav 15 var signifikanta. Modellerna gav studien stöd för att personlighet som prediktor påverkar sannolikheten av att bära eller inte bära 15 föremål. Kompletterande studier bör göras för att utforska potentiellt samband mellan beteenden och föremål.

Sherlock Holmes har visat på slutledningskonsten att koppla ledtrådar från en situation till personlighet. Är det då inte möjligt att säga mer om en person på bas av föremål som är relativt statiska/konsistenta i ens användning över hela dagen? Praktiserandet av profilering baseras på sambandet mellan personlighet och beteende men forskning har visat att beteenden inte alltid speglar vår personlighet. Denna studie syftade till att undersöka om personlighet kunde användas som prediktor till medhavda föremål. En förstudie med sju deltagare gjordes för att utforma en checklista med 48 föremål som sammanfogades med Big Five till en webbenkät. Webbenkäten besvarades av 449 kvinnor. De 48 föremålen användes som beroende variabler i simultana logistiska regressionsanalyser varav 15 var signifikanta. Modellerna gav studien stöd för att personlighet som prediktor påverkar sannolikheten av att bära eller inte bära 15 föremål. Kompletterande studier bör göras för att utforska potentiellt samband mellan beteenden och föremål. / <p>Formalia uppdaterad</p>

The current thesis presents five studies which consider the structure of normal range human personality as measured by psychometric inventories. The primary aim of the thesis was to develop a hierarchical model of the structure of human personality, which not only encapsulated the content of extant personality inventories, but extended the extant models to better represent the accumulated knowledge in the field of personality research. To do so, the thesis reports on the largest item level exploratory and confirmatory factor analytic investigation of the structure of personality to date. In Study 1, the utility of confirmatory factor analysis (CFA) for the investigation of personality structure was established by conducting dimensionality, structural and invariance analysis of the 16 Personality Factor Questionnaire, Version 5, using the US Standardization sample. The results clearly demonstrated that confirmatory models of personality inventories can display model fit, and that structures can be identified which are invariant across samples. In Study 2, 1,772 items from the Eugene-Springfield community sample were used to locate 78 unidimensional narrow personality facets, which were both substantively consistent and displayed strong psychometric properties. These 78 facets were then used to identify a second order 11 factor global structure to human personality, the 11+ Model. The 11+ Model was robust over different rotational criteria, and displayed excellent theoretical coverage of the personality sphere. However, confirmatory factor analyses of the 11 factor solution failed to demonstrate model fit. As a result, three further studies were conducted to explore the possible reasons for model misfit. In Study 3, the model fit of the new exploratory 11 factor solution was considered against model fit for extant structures and inventories. The results showed that across modelling strategy, the fit of newly identified structure was comparable to the extant inventories. In Study 4, the claim the model misfit is caused by the inherent complexity in personality was considered through an application of exploratory structural equation modelling (ESEM). ESEM has been argued to more adequately represent such complexity. Results suggested that the ESEM framework fails to offer additional information to help resolve the substantive problems in personality research. Finally, in Study 5, the sample size required to reliably estimate single factor confirmatory models, and second order structural models, was investigated using Monte Carlo simulations. The results suggest that samples of over 2000 are required to reliably estimate second order structural parameters in confirmatory factor analytic models. This finding suggests the samples used in much published research to investigate confirmatory structural models of personality inventories may be deficient.

A distinction between ruminative and reflective forms of dispositional self-focus is introduced and the theoretical utility of this distinction is evaluated in a program of eight studies. Study 1 examined for the presence of this distinction among natural language trait descriptors. Study 2 evaluated whether this distinction provided a sufficient summary of relations between the Fenigstein, Scheier and Buss (1975) Self-Consciousness scales and the Five Factor Model of personality (FFM). In Study 3, two brief questionnaire measures of ruminative and reflective tendencies were developed, and their convergent and discriminant validity evaluated with respect to the FFM, and the Fenigstein et al. (1975) Public Self- Consciousness (PUSC) and Private Self-Consciousness (PRSC) scales. Study 4 investigated the extent to which rumination and reflection separately account for PRSC associations with measures of psychological distress (e.g., Beck Depression scale) and intellective dispositions (e.g., Need for Cognition scale), respectively. Study 5 evaluated, using a sample of dormitory roommates, the extent to which self-estimates of ruminativeness and reflectiveness correspond with the judgments of a knowledgeable observer. Studies 6, 7, and 8 evaluated the extent to which the traits of rumination and reflection separately account for previously reported PRSC associations with three theoretically relevant criteria of private self-consciousness: state indices of self-focused attention (Study 6), the asymmetry effect in self-other similarity judgments (Study 7), and research volunteerism (Study 8). Findings suggest that the PRSC scale confounds two relatively independent, and motivationally distinct dispositions, rumination and reflection, and that latent ruminative and reflective components of PRSC scores separately and fully account for PRSC correlates and effects. These findings provide a straight forward explanation of the "self-absorption" paradox implicit in the PRSC research literature, i.e., the consistent but apparently contradictory finding of more accurate and extensive self-knowledge, yet higher levels of subjective psychological distress, among persons high in private self-consciousness. It is likely that the PRSC's associations with psychological distress are uniquely due to its neurotic component (rumination), and that the PRSC's self-knowledge effects are uniquely due its intellective component (reflection). It is argued that rumination and reflection represent statistically and functionally independent self-focusing tendencies. Their strong and unique associations with the FFM dimensions of neuroticism and openness, respectively, imply a basic dichotomy of self-attentive motives: anxiety/fear and curiosity/exploration: rumination represents a useful summary conception of self-attentiveness motivated by perceived threats, losses, or injustices to the self; reflection represents a useful summary conception of self-attentiveness motivated by intrinsic curiosity, or epistemic interest in the self. It is concluded that the spatial metaphor of "direction" may not be an appropriate basis for a useful scientific conception of dispositional self-consciousness. The concept of a purely cognitive tendency to have attention chronically directed toward the self versus away from the self, construed independently of the emotional and motivational determinants of such a tendency, is probably untenable. / Arts, Faculty of / Psychology, Department of / Graduate