Reflection anisotropy spectroscopy (RAS) is a non-destructive optical technique which can be used to measure the surface properties of sample. We use the technique to detect the optical anisotropy of rubbed polyimide thin film. Atomic force microscopy study of rubbed polyimide showed that rubbing produced microgrooves on the surface of the polyimide thin films, and the surface roughness of the polymer thin films increased slightly with the rubbing strength. Reflection anisotropy signals have been found to be generated on the surface of polyimide thin film on completion of mechanical rubbing, and will increase with an increase in the rubbing strength. We also tried to find out the correlation between RA strength of the polyimide alignment layer and pretilt angle of liquid crystal at the rubbed polyimide films.

The fullerene cage provides an ideal, isolated environment for trapping spin active atoms such as nitrogen or phosphorous. Alignment of these endohedral fullerenes in linear arrays would have applications in quantum computing as the interactions between spin-active molecules can be easily controlled. Self-assembled molecular networks such as block copolymers, Langmuir-Blodgett films, and self-assembled monolayers are ideal for this purpose as the spacing and geometry can be easily tuned. This dissertation will discuss using each of these methods to achieve alignment or orientation of fullerenes for application in quantum information processing.

<p>There is a continuous development of different crop varieties in the crop trade. The cultivated crops tend to be more and more alike which require an effective method for crop identification. Crop type and crop type purity has become a quality measure in crop trade both nationally and internationally. A number of well known quality attributes of interest in the crop trade can be correlated to the specific crop type and therefore it is of great importance to reliably be able to identify different crop varieties. It is well known from the literature that there exist genomic variations at the nucleotide level between different crop varieties and these variations might potentially be useful for automated variety identification.</p><p>This project deals with the crop variety identification area where the possibilities of distinguishing between different wheat varieties are investigated. Experience from performing wheat variety identification at protein level has shown unsatisfactory results and therefore DNA-based techniques are proposed instead. DNA-based techniques are dependent upon the availability of sequence data from the wheat genome and some work has concerned examining the availability of sequence data from wheat. But the focus of the work has been on defining a method for computational detection of single nucleotide variations in ESTs from wheat and to experimentally test that method. Results from these experiments show that the method defined in this project detects polymorphic variations that can be correlated to variety variations</p>

<p><strong>Introduction. </strong>This bachelor thesis concerns the subject of IT Governance, how organizations prioritize and decides IT-related issues. The thesis will approach how Swedish Small-to-Medium sized Enterprises, which are considered successful, governs IT-related issues.</p><p><strong>Theoretical Framework. </strong>In order to conduct this research, the Governance Arrangement Matrix, created by MIT Sloan 2003, is applied which was also incorporated in a global study by Weill in 2003. The matrix involves five different decisions domains within IT and different corporate archetypes divided by stakeholder involvement.  The compiled data will thus be analyzed and mapped against Weill's study to derive the contemporary decision structure in Swedish SME's and create a comparison to map any alterations that might have occurred.</p><p><strong>Method. </strong>Through utilizing an online-survey and conducting telephone interviews, 108 responses from Swedish SME's provided the necessary data to map the contemporary decision-structure within IT in a deductive manner to both utilize quantitative and qualitative data, creating an understanding of the derived outcome. The analysis will provide an understanding for organizations to see the fit between business objectives and IT-usage, creating future possibilities for organizations to further optimizes their alignment between the business and IT. The main conclusions from this thesis could be summarized as follow:</p><p><strong>Results. </strong>The involvement of the board-of-directors has become more frequent, and with the inclusion of a Chief Information Officer, the collaboration throughout the corporate hierarchy enables a broader understanding of the impact of IT. Although that this approach was the most frequent selected archetype, the decisions relating to IT acquisitions and architecture, the majority of responses showed indications relating these areas to be decided by CIO/IT-department thus in conclusion: the knowledge that CIO/IT-departments has are sufficient to support the everyday business need.</p><p>Furthermore, the differences found between this research and the underlying study by Weill, indicates that IT is considered a multi-dimensional problem that needs constant supervision and that the view upon prioritizations and governance has been altered.</p>

<p>This thesis aims at describing the CIO role from the perspective of two interviews and the literature on the subject. Our research questions mainly focus on the actual work of a CIO and are answered by providing a framework on how to view the CIO and the influence of the CIO. Influence meaning both on business and IT strategy. We have answered what the CIO role implies and how it is used in different organizations. To do this we have scanned current literature and also conducted two interviews with CIO’s from completely different organizations and resources. A framework for understanding how the IT strategy and business strategy is linked with the CIO as a resource has been created and our interview findings are presented in this framework. We have also found that the CIO with little involvement in overall business strategy decisions has less influence on the IT strategy. This is ex-plained by the nature of the organization and the view of IT.</p><p>A CIO’s primary function could be to strategically align IT with business or to make sure that the IT systems runs flawless. These can be viewed as counterpoints but since the role today is changing from being operative to working more with strategic questions it is not a strange finding. The influence a CIO has in business strategy questions ranges from none to a lot, based on how the CIO role is defined by the organization. This is also well in line with the view of IT. When viewing IT as something that has the possibility to gain competitive advantage, IT gain more credibility, hence the CIO gains more influence on business strategy decisions. We also found that the CIO not only has the overall responsibility of IT in the organization, but also that s/he is supposed to work with questions of concern to the business. This forces the CIO to have an understanding of the end-customer, which in itself creates a better understanding for the business strategy. The CIO should work with questions that not only meet the current demand of the organization they support, but also future needs and potential opportunities where IT can be of specific interest.</p>

<p>Reconstructing the evolutionary history of a set of species is a fundamental problem in biology. This thesis concerns computational problems that arise in different settings and stages of phylogenetic tree reconstruction, but also in other contexts. The contributions include:</p><p>• A new distance-based tree reconstruction method with optimal reconstruction radius and optimal runtime complexity. Included in the result is a greatly simplified proof that the NJ algorithm also has optimal reconstruction radius. (co-author Jens Lagergren)</p><p>• NP-hardness results for the most common variations of Multiple Alignment. In particular, it is shown that SP-score, Star Alignment, and Tree Alignment, are NP hard for all metric symbol distances over all binary or larger alphabets.</p><p>• A 1.375-approximation algorithm for Sorting By Transpositions (SBT). SBT is the problem of sorting a permutation using as few block-transpositions as possible. The complexity of this problem is still open and it was a ten-year-old open problem to improve the best known 1.5-approximation ratio. The 1.375-approximation algorithm is based on a new upper bound on the diameter of 3-permutations. Moreover, a new lower bound on the transposition diameter of the symmetric group is presented and the exact transposition diameter of simple permutations is determined. (co-author Tzvika Hartman)</p><p>• Approximation, fixed-parameter tractable, and fast heuristic algorithms for two variants of the Ancestral Maximum Likelihood (AML) problem: when the phylogenetic tree is known and when it is unknown. AML is the problem of reconstructing the most likely genetic sequences of extinct ancestors along with the most likely mutation probabilities on the edges, given the phylogenetic tree and sequences at the leafs. (co-author Tamir Tuller)</p><p>• An algorithm for computing the number of mutational events between aligned DNA sequences which is several hundred times faster than the famous Phylip packages. Since pairwise distance estimation is a bottleneck in distance-based phylogeny reconstruction, the new algorithm improves the overall running time of many distancebased methods by a factor of several hundred. (co-author Jens Lagergren)</p>

<p>Abstract: The purpose of this study is to examine how the Swedish policy of neutrality has changed between the years 1990-2008. The research method used for this essay has been comparative case study, which strives to answer four research questions. Two of these questions are: Which specific occurrences have been fundamental in changing the Swedish policy of neutrality? How have the Swedish policy of neutrality and the policy of non-alignment changed between the years 1990-2008? The theoretical frame work of this study consists of Europeanization as a comprehensive theoretical perspective. In order to explain the Swedish act regarding the policy of neutrality, Logic of Consequences and Logic of appropriateness are used. The conclusion of the study points out that Sweden has become much more flexible in terms of policy of neutrality and policy of security. The years between 1990-2008 are distinguished due to the fact that the international cooperation has become much more important in the Swedish act of security. Sweden still has the policy of non-alignment, but cooperation between the states is more and more prioritized to secure peace around the world.</p>

Aligning two images by point to point correspondence is a hard optimization problem. It can be solved using t-Extremal Optimization or with a modification of this method called Fitness threshold accepting. In this work these two methods are tested and compared to see whether one of the methods should be preferred for image alignment. Since real image data is almost always noisy the performance of the methods under conditions like noisy and outlying data is analyzed too.

Thesis (Ph. D.)--University of Washington, 2002. / Vita. Includes bibliographical references (leaves 93-101).

Thesis (Ph.D.)--University of Alabama at Birmingham, 2009. / Title from PDF title page (viewed on Feb. 2, 2010). Includes bibliographical references.