This dissertation approaches high resolution scatterometry from a new perspective. Three related general topics are addressed: high resolution σ^0 imaging, wind estimation from high resolution σ^0 images over the ocean, and high resolution wind estimation directly from the scatterometer measurements. Theories of each topic are developed, and previous approaches are generalized and formalized. Improved processing algorithms for these theories are developed, implemented for particular scatterometers, and analyzed. Specific results and contributions are noted below. The σ^0 imaging problem is approached as the inversion of a noisy aperture-filtered sampling operation-extending the current theory to deal explicitly with noise. A maximum aposteriori (MAP) reconstruction estimator is developed to regularize the problem and deal appropriately with noise. The method is applied to the SeaWinds scatterometer and the Advanced Scatterometer (ASCAT). The MAP approach produces high resolution σ^0 images without introducing the ad-hoc processing steps employed in previous methods. An ultra high resolution (UHR) wind product has been previously developed and shown to produce valuable high resolution information, but the theory has not been formalized. This dissertation develops the UHR sampling model and noise model, and explicitly states the implicit assumptions involved. Improved UHR wind retrieval methods are also developed. The developments in the σ^0 imaging problem are extended to deal with the nonlinearities involved in wind field estimation. A MAP wind field reconstruction estimator is developed and implemented for the SeaWinds scatterometer. MAP wind reconstruction produces a wind field estimate that is consistent with the conventional product, but with higher resolution. The MAP reconstruction estimates have a resolution similar to the UHR estimates, but with less noise. A hurricane wind model is applied to obtain an informative prior used in MAP estimation, which reduces noise and ameliorates ambiguity selection and rain contamination.

Uncertainty avoidance as a cultural construct has been known to affect worker stress and performance in organizations, but a review of these findings has not been done up until this point. In effort to clarify the relationship between uncertainty avoidance and stress and performance, a comprehensive literature search was performed. Findings from articles on this topic have been presented. In addition, organizational practices for accommodating uncertainty avoidance and other cultural dimensions have been explored. This review shows that uncertainty avoidance appears to be linked to higher stress, while its relationship to performance appears to depend on other factors. Best practices for accommodating uncertainty avoidance tend to include enhanced communication and structure. Ideas for future research on this topic are discussed.

Refugees from war zones often have missing significant others. A loss without confirmation is described as an ambiguous loss. This physical absence with simultaneous mental persistence can be accompanied by economic, social or legal problems, boundary ambiguity (i.e., uncertainty about who belongs to the family system), and can have a negative impact on mental health. The aim of this study was to identify sociodemographic and loss-related predictors for prolonged grief, anxiety, depression, post-traumatic stress disorder (PTSD) and somatization in treatment-seeking Syrian refugees with post-traumatic stress symptoms in Germany experiencing ambiguous loss. For the present study, data were based on the treatment-seeking baseline sample of the “Sanadak” randomized-controlled trial, analyzing a subsample of 47 Syrian refugees with post-traumatic stress symptoms in Germany experiencing ambiguous loss. Sociodemographic and loss-related questions were applied, along with standardized instruments for symptoms of prolonged grief (ICG), anxiety (GAD-7), depression (PHQ-9), PTSD (PDS-5) and somatization (PHQ-15). Linear regression models were used to predict mental health outcomes. Having lost a close family member and higher boundary ambiguity showed a statistically significant association with higher severity in prolonged grief. The overall model for somatization reached statistical significance, while no predictor independently did. Boundary ambiguity showed a statistically significant positive association with depression, while the overall model showed no statistically significant associations. Boundary ambiguity and missing family members seemed to be important predictors for prolonged grief. These findings support the importance of reunification programs and suggest an inclusion of the topic into psychosocial support structures, e.g., including psychoeducational elements on boundary ambiguity in support groups for traumatized individuals and families experiencing ambiguous loss. Further research is needed for a more detailed understanding of the impact of ambiguous loss on refugee populations.

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The growing number of video gamers over the age of fifty has sparked new interests in the transformative power of play and consequently, video games, for a larger demographic of citizens. Researchers have found that digital gaming can have positive effects on the physical, psychological and cognitive well-being of older adults. Of particular interest to this thesis is the potential of games to facilitate social connections between different generations of players. Intergenerational games have focused on improving relations between younger people and older adults by providing enjoyable interactions that can impart cognitive and physical benefits. While previous work has focused on enhancing intergenerational social connections between relatives, non-familial intergenerational encounters have scarcely been explored. Games often feature asymmetrical participation and require long term interest, all factors that can prove challenging to implement for public non-kin intergenerational gameplay. Previous works have shown that the successful use of games is dependent on a number of psychosocial and contextual factors that shape the player experience. One of them is the degree of familiarity between players. Familiarity has been linked to many of the core motivations associated with intergenerational play, exposing doubts of whether the same motivations can be used to inform the design of intergenerational games between strangers of different ages. In addition, for most socio-technical interventions designed for older adults, the characteristics of seniors have predominantly been framed around accessibility and decline. This limited perspective also tends to be true when discussing games designed for seniors. Finally, existing research on games for seniors has mainly focused on seniors who play conventional video games and self-identify as gamers, further marginalizing seniors who do not fit these descriptions. The current design of intergenerational games might not be ready for adoption by the broader society. In response to these gaps, this thesis presents a research through design project aimed to investigate how a general population of older people (who may not be composed of video-gamers) perceive and experience game and play, and map this knowledge to promising playful approaches of intergenerational encounters while at the same time promoting a positive image of older adults as active and sociable members of society. The methodology featured a participatory approach that involved interview studies, co-design workshops, and playtests that helped to articulate the general requirements for an intergenerational game to be played in public spaces. The result of these formative exercises produced Klang Verbindet (“Sound Connects”), an interactive playful system that supports embodied interaction and group exploration of spaces. Designed to be played through body movements, the system employs vision-based algorithms and sound synthesis to provide an age- agnostic space for public play. Interactions with the system were evaluated in two different public contexts, using direct observations, semi-structured group interviews, and post-game questionnaires. Based on these data and the design and implementation of the system, the thesis describes a number of important factors to be considered when designing and evaluating games for non-familial intergenerational interaction. The most important being, to design for short-term and low-entry engagements which are defined as “low-threshold intergenerational encounters”. Within this space, the thesis discusses the distinctive value of - ambiguity, appropriation, and curiosity as drivers of gameplay for rapid mixed-aged encounters in the public context.

My thesis focuses on philosophical themes implicit in corridor conservation, using the Big Thicket National Preserve as an example. The way in which corridors, boundaries and communities are ambiguous, as both limits and connections, is dealt with. Corridor-patch matrices assemble ecological and human groups into temporary communities, often with conflicting interests. Such constellations foreground how a foreigner's boundary crossing is a notion important to both conservation and a philosophical study of being, seen as being always in relation with otherness. In this context, the notion of foreignness and Jean-Luc Nancy's idea of being-with is explored. Understanding the complex network of relations in which an entity exists leads to an awareness of its ambiguous nature. To facilitate judgment with such ambiguity, one needs a contextual understanding of a situation.

In the year of 2012 a unique three dimensional figurine was found in Hårby, Denmark depicting what seems to be a woman holding a sword and a shield. Immediately it was defined as a Valkyrie, a female servant of the Viking god Odin. However, this is most likely a simplified interpretation since most female figurines from the Viking age is interpreted in this way. This thesis questions this interpretation, creating an identity crisis for the Valkyries due to their interpretation no longer being obvious and simple. Instead this thesis recognizes the gender ambiguous features of the Hårbyfigurine and tries to determine what it can tell about the perception of gender during the Viking Age. The purpose of this thesis is thus to present how gender theory, queer theory and a comparative method can be used to interpret a gender ambiguous object from the Viking Age. This is done based on the Hårbyfigurine and its different attributes and concludes that the arguments against that female figurines from the Viking Age depicts Valkyries are more numerous than the arguments that support this identification. Alternative interpretations for the figurine is therefore suggested. The thesis also shows that the interpretations gender theory, queer theory and comparative method can produce differs in its complexity and in how they handle the gender ambiguous qualities of the Hårbyfigurine. The conclusion drawn from this is that gender ambiguous objects cannot be interpreted in one single way but must be tackled with a variety of theories and methods to be able to tell something about the worldview of the people who lived in the Viking Age. The term gender ambiguous is also re-evaluated throughout the thesis and turns out to be an interpretation applied to objects based on a modern way of defining gender and sex and is not a trait of the object itself. This means that gender is not defined in the same way today as it was in the Viking Age. Gender is thus strongly connected to the ruling culture and not stable, but ever changing.

Ce mémoire vise à vérifier l’effet modérateur de la relation d’encadrement LMX sur la relation entre les demandes du travail et l’épuisement émotionnel. Nous avons d’abord étudié la relation d’encadrement LMX et ses effets multiples, particulièrement sur le stress. Nous avons envisagé le LMX comme une ressource qui peut atténuer les effets des demandes du travail (conflit, surcharge et l’ambiguïté de rôle) sur l’épuisement émotionnel, et ce, avec comme fondement théorique le modèle des tensions du travail de Karasek (1979). Pour vérifier notre modèle, nous avons procédé à une analyse secondaire de données recueillies dans le cadre provenant d’une étude précédente réalisée à l’Institut de gériatrie de l’Université de Sherbrooke en 1996. Des analyses descriptives nous ont permis de valider deux de nos trois principales hypothèses à l’effet que le LMX agit comme modérateur sur la relation entre les demandes du travail et l’épuisement émotionnel. En effet, les résultats montrent que plus le LMX est de qualité, moins les relations entre le conflit de rôle et l’épuisement émotionnel ainsi qu’entre la surcharge de rôle et l’épuisement émotionnel sont significatives. Toutefois, nos résultats indiquent que plus le LMX est de qualité, plus l’effet de l’ambiguïté de rôle est relié à l’épuisement émotionnel. / This paper will demonstrate the moderating effect of the LMX relationship on the connection between job demands and emotional exhaustion. First, we examined the LMX relationship and its various effects, especially on stress. Based on the theoretical foundations of Karasek’s workplace stress model (1979), we considered LMX as a resource that can mitigate the effects of job demands (conflict, overload and role ambiguity) on emotional exhaustion. To validate our model, we conducted a secondary analysis of data gathered in a prior study at the Université de Sherbrooke’s geriatrics institute in 1996.Descriptive analyses allowed us to validate two of our three main hypotheses to the effect that LMX functions as a moderator in the relationship between job demands and emotional exhaustion. The results showed that the better quality the LMX, the less significant the relationship between role conflict and emotional exhaustion and between role overload and emotional exhaustion. The results also showed, however, that the better quality the LMX, the greater the effect of role ambiguity on emotional exhaustion.

What if every craving that you ever felt stayed with you forever? Suppose facades couldn’t exist, and what should only be the deepest, densest core of a desire was formed into a mass, a body. Its will matching yours in its physical presence. I make creatures that are embodiments of emotions. In this study I mainly focus on desires and inhibitions surrounding romance. I explore anatomical structures and how material make-up can directly reflect emotional character. In this exploration, the materiality of clay allows for a thorough manipulation of the composition of the creatures. In this I am also able to manipulate the material properties of clay to reflect states of existential discomfort, pushing the limits of material structure and stability. The final presentation of these creatures are as specimens of inhibitions, drawing in the viewer with empathy and repulsion as a fantastic other.