The Overgrown Grid: An Alternative Zoning Proposal for the Island of Manhattan

This thesis proposes to restructure the primary agenda of the collective monument from a homogenizing force at the local scale, to an object celebrating diversity and multiculturalism. By establishing a continuous mass connecting and collecting the city\u27s currently isolated collective monuments, the new monument will be adjusted to regain formal and cultural contrast to the urban fabric

GPU acceleration of time-domain fluorescence lifetime imaging

Fluorescence lifetime imaging microscopy (FLIM) plays a significant role in biological sciences, chemistry, and medical research. We propose a Graphic Processing Units (GPUs) based FLIM analysis tool suitable for high-speed and flexible time-domain FLIM applications. With a large number of parallel processors, GPUs can significantly speed up lifetime calculations compared to CPU-OpenMP (parallel computing with multiple CPU cores) based analysis. We demonstrate how to implement and optimize FLIM algorithms on GPUs for both iterative and non-iterative FLIM analysis algorithms. The implemented algorithms have been tested on both synthesized and experimental FLIM data. The results show that at the same precision the GPU analysis can be up to 24-fold faster than its CPU-OpenMP counterpart. This means that even for high precision but time-consuming iterative FLIM algorithms, GPUs enable fast or even real-time analysis

Factors affecting the electrolytic deposition of small amounts of lead as lead dioxide and the composition of the deposit

The purpose of this investigation is to determine the best conditions for the quantitative deposition of lead when the content of this element is below 5 milligrams and to study the composition of the deposited PbO₂. The following conditions were studied during the course of the investigation. 1. The maximum amounts of copper and zinc permissible for the quantitative determination of lead. 2. Methods of separating lead from zinc when the latter element is present in amounts greater than are permitted in the determination of the lead. 3. The separation of lead from copper when this element is in greater amounts than are permissible in the determination of the lead. 4. The effect of the temperature on the deposit during electrolysis. 5. The effect of various solvents, the method of drying, and the temperature of drying on the deposited lead dioxide. 6. The amount of lead in solution after electrolysis. 7. Variations in the method of solution of the ore, and treatment before electrolysis --The Problem, page 6

Using stages of change to examine fear, threat, efficacy, and safety climate perceptions in health care workers who routinely handle needles and sharps

Standard precautions are mandated for the purpose of decreasing the risk of bloodborne pathogen transmission of diseases, namely human immunodeficiency virus (HIV) and hepatitis B infections. One of the stipulations of standard precautions is that used needles should not be recapped and should be disposed of in an appropriate sharps container. The rate of needle stick injuries among health care workers remains at a high level despite the 1992 passage of the Occupational Safety and Health Administration (OSHA) regulations regarding standard precautions. The role fear plays in decisions regarding individual health related behaviors such as intravenous drug use has been critically examined, but fear related to occupationally related behavior (e.g., needle re-capping and disposal by health care workers) has received little attention. With the severe threat of bloodborne diseases such as AIDS and Hepatitis B, it is important to determine what role fear plays in enhancing or deterring compliance with standard precautions (specifically, not recapping used needles). The purpose of this study was to determine the differences in fear, threat, efficacy, and safety climate perceptions across Prochaska\u27s five stages of change (transtheoretical model) for health care workers who routinely handle needles and/or other sharps. The study used a self-administered mail questionnaire to assess health care worker perceptions. Results indicated that a clear risk of contracting HIV and Hepatitis B exists among health care workers in the sample. 72% of the sample had experienced a needle stick and 56% of those had been stuck more than one time. More alarming was the finding that 38% of the reported needle sticks involved blood contaminated needles. Surprisingly, neither fear nor threat levels differed across the stages of change. Efficacy levels were found to significantly increase across the stages as Prochaska and colleagues would predict. All four of the safety climate factors were found to significantly differ across the stages of change, indicating that the environmental context (occupational setting) is important in moving effectively through the behavior change process

A homoleptic phosphine adduct of Tl(I)

A homoleptic phosphine adduct of thallium(I) supported by a tris(phosphino)borate ligand has been isolated and structurally characterized

Roadway System Assessment Using Bluetooth-Based Automatic Vehicle Identification Travel Time Data

This monograph is an exposition of several practice-ready methodologies for automatic vehicle identification (AVI) data collection systems. This includes considerations in the physical setup of the collection system as well as the interpretation of the data. An extended discussion is provided, with examples, demonstrating data techniques for converting the raw data into more concise metrics and views. Examples of statistical before-after tests are also provided. A series of case studies were presented that focus on various real-world applications, including the impact of winter weather on freeway operations, the economic benefit of traffic signal retiming, and the estimation of origin-destination matrices from travel time data. The technology used in this report is Bluetooth MAC address matching, but the concepts are extendible to other AVI data sources