Current Search:  HIT (x)

View All Items

  • CSV Spreadsheet
(1 - 3 of 3)
The Power of Quantum Walk: Insights, Implementation, and Applications
Title
The Power of Quantum Walk: Insights, Implementation, and Applications.
Creator
Chiang, Chen-Fu, Wocjan, Pawel, Marinescu, Dan, Dechev, Damian, Mucciolo, Eduardo, University of Central Florida
Abstract / Description
In this thesis, I investigate quantum walks in quantum computing from threeaspects: the insights, the implementation, and the applications. Quantum walks are the quantum analogue of classical random walks. For the insights of quantum walks, I list and explain the required components for quantizing a classical random walk into a quantum walk. The components are, for instance, Markov chains, quantum phase estimation, and quantum spectrum theorem. I then demonstrate how the product of two...
Show moreIn this thesis, I investigate quantum walks in quantum computing from threeaspects: the insights, the implementation, and the applications. Quantum walks are the quantum analogue of classical random walks. For the insights of quantum walks, I list and explain the required components for quantizing a classical random walk into a quantum walk. The components are, for instance, Markov chains, quantum phase estimation, and quantum spectrum theorem. I then demonstrate how the product of two reflections in the walk operator provides a quadratic speed-up, in comparison to the classical counterpart. For the implementation of quantum walks, I show the construction of an efficient circuit for realizing one single step of the quantum walk operator. Furthermore, I devise a more succinct circuit to approximately implement quantum phase estimation with constant precision controlled phase shift operators. From an implementation perspective, efficient circuits are always desirable because the realization of a phase shift operator with high precision would be a costly task and a critical obstacle. For the applications of quantum walks, I apply the quantum walk technique along with other fundamental quantum techniques, such as phase estimation, to solve the partition function problem. However, there might be some scenario in which the speed-up of spectral gap is insignificant. In a situation like that that,I provide an amplitude amplification-based approach to prepare the thermal Gibbs state. Such an approach is useful when the spectral gap is extremely small. Finally, I further investigate and explore the effect of noise (perturbation)on the performance of quantum walks.
Show less
Date Issued
2011
Identifier
CFE0004094, ucf:49148
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0004094
REFLECTIONS ON WHEN THE SUN HITS
Title
REFLECTIONS ON WHEN THE SUN HITS.
Creator
Jones, Sebastian, Harris, Christopher, University of Central Florida
Abstract / Description
When the Sun Hits is a feature length film concerned with the delicate relationship between the individual and the whole. A young man named John has fallen into a state of social paralysis since his father's death. He no longer knows how to relate to others and the world around him. Rather than looking to friends and family for support he closes himself off. After the mysterious disappearance of his mother, John blames himself for her leaving. He tries his best to reconnect with his old life,...
Show moreWhen the Sun Hits is a feature length film concerned with the delicate relationship between the individual and the whole. A young man named John has fallen into a state of social paralysis since his father's death. He no longer knows how to relate to others and the world around him. Rather than looking to friends and family for support he closes himself off. After the mysterious disappearance of his mother, John blames himself for her leaving. He tries his best to reconnect with his old life, but finds himself making the same mistakes over and over. When his friend Tracy reaches out to him, he bitterly rejects her and once again finds himself alone. It is then that John puts his old life behind him and sets off to make amends with his mother. John has no idea where his mother might be or if she will accept him. Nonetheless, he reaches into the abyss to see if someone is there, waiting for him. The structure of the film is nonlinear as it deviates from traditional narrative form. The intent of this thesis is to serve as a post-film reflection that discusses the relation between my views on cinema and the film I made. The paper will shift between the general themes of the narrative and the film theory working behind it all. It will explore the idea of cinema as an extension of the mind and how this is present in the film. By using specific examples from the film this theory of cinema can be fleshed out and an insight into my process may be gleaned.
Show less
Date Issued
2013
Identifier
CFH0004412, ucf:45106
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFH0004412
EFFECTS OF HEALTH INFORMATION TECHNOLOGY ADOPTION ON QUALITY OF CARE AND PATIENT SAFETY IN US ACUTE CARE HOSPITALS
Title
EFFECTS OF HEALTH INFORMATION TECHNOLOGY ADOPTION ON QUALITY OF CARE AND PATIENT SAFETY IN US ACUTE CARE HOSPITALS.
Creator
Seblega, Binyam, Zhang, Ning, University of Central Florida
Abstract / Description
The adoption of healthcare information technology (HIT) has been advocated by various groups as critical in addressing the growing crisis in the healthcare industry. Despite the plethora of evidence on the benefits of HIT, however, the healthcare industry lags behind many other economic sectors in the adoption of information technology. A significant number of healthcare providers still keep patient information on paper. With the recent trends of reimbursement reduction and rapid...
Show moreThe adoption of healthcare information technology (HIT) has been advocated by various groups as critical in addressing the growing crisis in the healthcare industry. Despite the plethora of evidence on the benefits of HIT, however, the healthcare industry lags behind many other economic sectors in the adoption of information technology. A significant number of healthcare providers still keep patient information on paper. With the recent trends of reimbursement reduction and rapid technological advances, therefore, it would be critical to understand differences in structural characteristics and healthcare performance between providers that do and that do not adopt HIT. This is accomplished in this research, first by identifying organizational and contextual factors associated with the adoption of HIT in US acute care hospitals and second by examining the relationships between the adoption of HIT and two important healthcare outcomes: patient safety and quality of care. After conducting literature a review, the structure-process-outcome model and diffusion of innovations theory were used to develop a conceptual framework. Hypotheses were developed and variables were selected based on the conceptual framework. Publicly available secondary data were obtained from the American Hospital Association (AHA), the Health Information and Management Systems Society (HIMSS), and the Healthcare Cost and Utilization Project (HCUP) databases. The information technologies were grouped into three clusters: clinical, administrative, and strategic decision making ITs. After the data from the three sources were cleaned and merged, regression models were built to identify organizational and contextual factors that affect HIT adoption and to determine the effects of HIT adoption on patient safety and quality of care. Most prior studies on HIT were restricted in scope as they primarily focused on a limited number of technologies, single healthcare outcomes, individual healthcare institutions, limited geographic locations, and/or small market segments. This limits the generalizability of the findings and makes it difficult to draw definitive conclusions. The new contribution of the present study lies in the fact that it uses nationally representative latest available data and it incorporates a large number of technologies and two risk adjusted healthcare outcomes. Large size and urban location were found to be the most influential hospital characteristics that positively affect information technology adoption. However, the adoption of HIT was not found to significantly affect hospitalsÂÂ' performance in terms of patient safety and quality of care measures. Perhaps a remarkable finding of this study is the better quality of care performance of hospitals in the Midwest, South, and West compared to hospitals in the Northeast despite the fact that the latter reported higher HIT adoption rates. In terms of theoretical implications, this study confirms that organizational and contextual factors (structure) affect adoption of information technology (process) which in turn affects healthcare outcomes (outcome), though not consistently, validating Avedis DonabedianÂÂ's structure-process-outcome model. In addition, diffusion of innovations theory links factors associated with resource abundance, access to information, and prestige with adoption of information technology. The present findings also confirm that hospitals with these attributes adopted more technologies. The methodological implication of this study is that the lack of a single common variable and uniformity of data among the data sources imply the need for standardization in data collection and preparation. In terms of policy implication, the findings in this study indicate that a significant number of hospitals are still reluctant to use clinical HIT. Thus, even though the passage of the American Recovery and Reinvestment Act (ARRA) of 2009 was a good stimulus, a more aggressive policy intervention from the government is warranted in order to direct the healthcare industry towards a better adoption of clinical HIT.
Show less
Date Issued
2010
Identifier
CFE0003327, ucf:48445
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0003327