The President as International Leader

In this thesis, we address issues associated with programming modern heterogeneous systems while focusing on a special kind of heterogeneous systems that include multicore CPUs and one or more GPUs, called GPU-based systems.We consider the skeleton programming approach to achieve high level abstraction for efficient and portable programming of these GPU-based systemsand present our work on SkePU library which is a skeleton library for these systems. We extend the existing SkePU library with a two-dimensional (2D) data type and skeleton operations and implement several new applications using newly made skeletons. Furthermore, we consider the algorithmic choice present in SkePU and implement support to specify and automatically optimize the algorithmic choice for a skeleton call, on a given platform. To show how to achieve performance, we provide a case-study on optimized GPU-based skeleton implementation for 2D stencil computations and introduce two metrics to maximize resource utilization on a GPU. By devising a mechanism to automatically calculate these two metrics, performance can be retained while porting an application from one GPU architecture to another. Another contribution of this thesis is implementation of the runtime support for the SkePU skeleton library. This is achieved with the help of the StarPUruntime system. By this implementation,support for dynamic scheduling and load balancing for the SkePU skeleton programs is achieved. Furthermore, a capability to do hybrid executionby parallel execution on all available CPUs and GPUs in a system, even for a single skeleton invocation, is developed. SkePU initially supported only data-parallel skeletons. The first task-parallel skeleton (farm) in SkePU is implemented with support for performance-aware scheduling and hierarchical parallel execution by enabling all data parallel skeletons to be usable as tasks inside the farm construct. Experimental evaluations are carried out and presented for algorithmic selection, performance portability, dynamic scheduling and hybrid execution aspects of our work

Putting the Video Back in Video Games: Opportunities and Challenges for Visual Studies Approaches to Video Game Analysis

I argue for the application of visual studies in video game analysis. This approach presents opportunities for the intersectional analysis of video game visuals as games are brought into dialogue with other visual media like film and painting. This approach also presents challenges due to ontological distinctions between different media as well as due to academic divisions regarding the study of different art and media objects. Despite the challenges presented, a visual studies approach is particularly useful as a critical window into contemporary visual culture at large. I outline the fields of game studies and visual studies, marking their distinctions as well as the areas in which they overlap. I provide examples of visual studies approaches to video game analysis through an emphasis on the visual characteristics of video games. As visual studies is generally considered an interdisciplinary endeavor, I contextualize my analyses through comparisons with other visual media, in particular finding intersections with art history and film studies. Specifically, I argue that perspective is an integral visual trait of many video games, relating the use of linear perspective and isometric perspective, used in some genres of games, with the development of perspective in painting. I examine various cinematic techniques used in video games and discuss their ideological potency. I also cover ways in which video games subvert conventional norms, such as through self-reflexivity, to open up novel avenues for visual expression

The Role of Narrative in Constructing an Advocacy Coalition: The Case of Sao Paulo's Non-discrimination Policy

The Brazilian LGBT movement has transformed in role from a social movement fragmented by diverse interests to a policy actor with a clear agenda. To understand this transition, we study the case of non-discrimination policy 10.948 in Sao Paulo, Brazil. We combine insights from scholars working in the tradition of narrative policy analysis (NPA) with the empirical lens of the advocacy coalition framework (ACF). We hypothesize that coalition interaction in policymaking facilitates the construction of narratives that shape, and are shaped by, core beliefs and policy core beliefs. We find that, consistent with ACF, non-discrimination policy results in the development of a distinct advocacy coalition held together by a shared belief system. Importantly, and unforeseen to ACF, this belief system is discursively produced as a shared narrative by the advocacy coalition. The narrative is characterized by a deep core belief commitment to equality and several policy core beliefs. Our findings suggest that narrative plays an important and overlooked role in strengthening the glue of advocacy coalitions

Three-dimensional cephalometric evaluation of maxillary growth following in utero repair of cleft lip and alveolar-like defects in the mid-gestational sheep model

Objective: To evaluate maxillary growth following in utero repair of surgically created cleft lip and alveolar (CLA)-like defects by means of three-dimensional (3D) computer tomographic (CT) cephalometric analysis in the mid-gestational sheep model. Methods: In 12 sheep fetuses a unilateral CLA-like defect was created in utero (untreated control group: 4 fetuses). Four different bone grafts were used for the alveolar defect closure. After euthanasia, CT scans of the skulls of the fetuses, 3D re-constructions, and a 3D-CT cephalometric analysis were performed. Results: The comparisons between the operated and nonoperated skull sides as well as of the maxillary asymmetry among the experimental groups revealed no statistically significant differences of the 12 variables used. Conclusions: None of the surgical approaches used for the in utero correction of CLA-like defects seem to affect significantly postsurgical maxillary growth; however, when bone graft healing takes place, a tendency for almost normal maxillary growth can be observed. Copyright (c) 2006 S. Karger AG, Basel

Hypertrophic Scar Formation Following Burns and Trauma: New Approaches to Treatment

The authors examine the process of hypertrophic scar formation, the results of current treatments, and areas of research likely to lead to significant advances in the field

Identity and Representation within the Contemporary Brazilian LGBT Movement

Social movements engage in processes of identity work to construct and reconstruct collective identities. Within movements characterized by identity differences, such as contemporary LGBT movements, demands for representation of individual identities challenge the collective movement to perform hard identity work. What strategies do trans activists utilize to achieve representation within the collective Brazilian LGBT movement? This research argues that processes of movement institutionalization within the State condition opportunities and strategies for conducting hard identity work. At the meso-level, institutionalization within State-apparatus of participatory governance provide new opportunities and strategies for the LGBT movement to negotiate representation. At the micro-level, institutionalization within State-sponsored public policy leads to innovative discursive strategies for contending and negotiating representation. Together, meso and micro level processes offer important strategies for the collective LGBT movement to address some of its most divisive internal conflicts in productive ways. This research employs a multi-method research approach through analysis of quantitative policy measurements, archival policy data, semi-structured interviews, and participant-observation during the 2014 calendar year

Effects of spiritual care training for palliative care professionals

Little is known about the effects of spiritual care training for professionals in palliative medicine. We therefore investigated prospectively the effects of such training over a six-month period. All 63 participants of the three and a half-day training were asked to fill out three questionnaires: before and after the training, as well as six months later. The questionnaires included demographic data, numeric rating scales about general attitudes towards the work in palliative care, the Self-Transcendence Scale (STS), the spiritual subscale of the Functional Assessment of Chronic Illness Therapy (FACIT-Sp) and the Idler Index of Religiosity (IIR). Forty-eight participants (76) completed all three questionnaires (91 women, median age 49 years; 51 nurses, 16 hospice volunteers, 14 physicians).Significant and sustained improvements were found in self-perceived compassion for the dying (after the training: P =0.002; 6 months later: P=0.025), compassion for oneself (P < 0.001; P =0.013), attitude towards one's family (P =0.001; P =0.031), satisfaction with work (P < 0.001; P =0.039), reduction in work-related stress (P < 0.001; P =0.033), and attitude towards colleagues (P =0.039; P =0.040), as well as in the FACIT-Sp (P < 0.001; P =0.040). Our results suggest that the spiritual care training had a positive influence on the spiritual well-being and the attitudes of the participating palliative care professionals which was preserved over a six-month period